[go: up one dir, main page]

EP3017238A1 - Device for cooling a consumer with a super-cooled liquid in a cooling circuit - Google Patents

Device for cooling a consumer with a super-cooled liquid in a cooling circuit

Info

Publication number
EP3017238A1
EP3017238A1 EP14736664.5A EP14736664A EP3017238A1 EP 3017238 A1 EP3017238 A1 EP 3017238A1 EP 14736664 A EP14736664 A EP 14736664A EP 3017238 A1 EP3017238 A1 EP 3017238A1
Authority
EP
European Patent Office
Prior art keywords
cooling
liquid
consumer
cooling circuit
subcooler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14736664.5A
Other languages
German (de)
French (fr)
Other versions
EP3017238B1 (en
Inventor
Friedhelm Herzog
Thomas Kutz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Messer Group GmbH
Original Assignee
Messer Group GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Messer Group GmbH filed Critical Messer Group GmbH
Priority to PL14736664T priority Critical patent/PL3017238T3/en
Publication of EP3017238A1 publication Critical patent/EP3017238A1/en
Application granted granted Critical
Publication of EP3017238B1 publication Critical patent/EP3017238B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B19/00—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
    • F25B19/005—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour the refrigerant being a liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/005—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure
    • F17C13/006—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure for Dewar vessels or cryostats
    • F17C13/007—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure for Dewar vessels or cryostats used for superconducting phenomena
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B19/00—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2225/0169—Liquefied gas, e.g. LPG, GPL subcooled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0107—Propulsion of the fluid by pressurising the ullage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0306—Heat exchange with the fluid by heating using the same fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0369—Localisation of heat exchange in or on a vessel
    • F17C2227/0374—Localisation of heat exchange in or on a vessel in the liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0439—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/05—Improving chemical properties
    • F17C2260/056—Improving fluid characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/01—Purifying the fluid
    • F17C2265/015—Purifying the fluid by separating
    • F17C2265/017—Purifying the fluid by separating different phases of a same fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/02—Mixing fluids
    • F17C2265/022—Mixing fluids identical fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use

Definitions

  • the invention relates to a device for cooling a consumer, with a consumer associated cooling circuit for circulating a cooling liquid, in which a pump and a subcooler is provided, wherein the subcooler via a equipped with a relief valve supply line with a storage tank for the cooling fluid flow connected to the container Including a cooling bath, a arranged on the container gas discharge line for discharging vaporized cooling liquid and immersed in the intended use of the device in the cooling bath and integrated into the cooling circuit heat exchanger.
  • Low-boiling liquefied gases such as, for example, liquid nitrogen, liquid oxygen or liquefied noble gases
  • liquid nitrogen, liquid oxygen or liquefied noble gases can only be kept liquid by means of particularly good insulation of the storage tanks and the pipelines. Even the slightest heat or frictional heat can lead to partial evaporation, depending on the boiling state. Through the partial evaporation collect
  • subcooling is understood as meaning the cooling of a liquid to a temperature below its boiling point at the respective pressure .
  • super cooling can be effected relatively easily in the case of relatively high-boiling liquefied gases, for example carbon dioxide or fluorinated hydrocarbons
  • the aggregates required for this purpose are very expensive to purchase and operate due to their high power requirements.
  • the device consists of a thermally insulated container in which a cooling bath taken from a liquefied cryogenic cooling medium and in the headspace of a gas outlet valve is arranged.
  • a heat exchanger through which the liquid to be undercooled flows, for example a cooling coil, is arranged.
  • To overcool the fluid ensure that the pressure across the cooling bath is less than the pressure within the cooling coil. Since the cooling bath is indeed in the boiling state, but its pressure is reduced compared to the pressure of the liquid to be undercooled, is his
  • Boiling temperature below the boiling point of the liquid to be supercooled which is thereby undercooled and liquefied within the already occurred gas bubbles.
  • Such a subcooler can now be used to cool a consumer by, for example, in a consumer assigned
  • Cooling circuit is installed. Through the subcooler the consumer is constantly supplied undercooled cooling liquid. With appropriate design, it is possible that removed during the supercooling of the cooling liquid heat the
  • Cooling circuits of this type should be equipped to compensate for density or volume fluctuations, especially in the case of an irregular heat input, with a surge tank in which above a level of the cooling liquid is a gas for pressure equalization.
  • a surge tank in which above a level of the cooling liquid is a gas for pressure equalization.
  • EP 1 355 1 14 A2 describes a closed cooling circuit for cooling components, such as, for example, high-temperature superconducting cables, with a cryogenic liquid as a coolant, in which a cooling circuit associated with the cooling circuit
  • Compensation vessel serves to keep the cooling circuit under an increased operating pressure of, for example, 2 bar to 20 bar and compensate for sudden gas formation in a closed circuit and leakage losses.
  • Equalizing vessel is connected directly to the cooling circuit and filled with the same cryogenic liquid that circulates in the cooling circuit.
  • the integrated in the cooling circuit expansion tank limits the possibilities and in particular the temperatures with which the cooling circuit can be operated.
  • the pressure equalization by means of vaporized succeeds
  • helium as pressure equalizing gas in the gas space of the
  • the invention is therefore based on the object to provide a device for cooling a consumer with a supercooled cooling liquid in a cooling circuit, in which a pressure compensation in the cooling circuit can be realized with simple means.
  • This object is in a device of the type mentioned and
  • flow-open connection line which is flow-connected to the storage tank and / or or leading to the cooling bath of the subcooler supply upstream to the expansion valve.
  • the device according to the invention thus comprises in a manner known per se a cooling circuit in which, in addition to the consumer, a pump for
  • cooling liquid Conveying the cooling liquid (the terms “cooling liquid” and “liquid cooling medium” are used synonymously below), as well as an upstream arranged to the consumer subcooler is provided.
  • cooling liquid Conveying the cooling liquid (the terms “cooling liquid” and “liquid cooling medium” are used synonymously below), as well as an upstream arranged to the consumer subcooler is provided.
  • the subcooler comprises a heat exchanger integrated in the cooling circuit through which the liquid cooling medium to be subcooled flows and which is accommodated in a cooling bath.
  • the cooling bath is in turn received in a pressure-tight and gas-tight container and consists of the same substance as the circulating in the cooling circuit cooling liquid, but is at a lower temperature than this.
  • the pressure of the gas phase above the cooling bath is adjusted by a gas discharge, namely to a value (hereinafter referred to as "target pressure"), in which the boiling temperature of the cooling liquid in the cooling bath below the boiling temperature of the cooling liquid
  • target pressure a value (hereinafter referred to as "target pressure"
  • the cooling liquid in the cooling circuit is brought to a temperature below its boiling point (hereinafter "target temperature” called.)
  • target temperature a temperature below its boiling point
  • Target temperature is determined essentially by the heat input by the consumer, the pump and the lines of the cooling circuit, and can be controlled in particular depending on the heat input. To the occurring due to the heat input to the heat exchanger loss
  • the pressure vessel receiving the cooling bath is in fluid communication with a storage tank for cooling liquid.
  • the liquid supply line connecting the sump of the storage tank with the cooling bath is equipped with an expansion valve, which ensures that the
  • the liquid cooling medium used is preferably a cryogenic liquefied gas, for example liquid nitrogen or a liquefied inert gas.
  • the storage tank itself is used according to the invention.
  • the storage tank is stromungsverbunden with the cooling circuit via a connecting line, which branches off from the liquid supply upstream to the expansion valve and during the
  • the connecting line opens into the Storage tank itself or in the storage tank connected to the cooling bath in the subcooler liquid supply, in each case upstream to
  • cooling liquid can flow from the storage tank into the cooling circuit or flow out of it into the storage tank in this manner, without this significantly affecting the pressure conditions in the region of the cooling bath.
  • the actual pressure equalization takes place via the gas phase present in the storage tank above the cooling liquid. In particular, if in the storage tank in comparison to the volume of the
  • Cooling circuit is maintained large volume of cooling liquid, prevents the amount of cooling liquid in the storage tank and its hydrostatic pressure that flows through the connecting line in the bottom of the storage tank
  • the pressure in the storage container can be kept at a predetermined pressure by means of a pressure build-up evaporator, for example an air evaporator, connected to the storage tank.
  • a pressure build-up evaporator for example an air evaporator
  • Cooling device over cooling circuits simplified according to the prior art and the energy loss caused by the heat input into the surge tank is avoided.
  • a second subcooler Connecting line in the liquid supply line, a second subcooler arranged.
  • the second subcooler prevents more than just an insignificant part of the liquid cooling medium from reaching the expansion valve in the gaseous state, which adversely affects the functioning of the expansion valve and also the functionality of the first subcooler
  • main subcooler (hereinafter referred to as "main subcooler")
  • Subcooler for example, an object is used in which a transporting the medium to be subcooled conduit passed through a cooling bath and is thermally connected to this, the temperature of which is lower than the medium guided through the conduit.
  • a phase separator is provided in the supply line, upstream of the expansion valve and downstream of the branch line.
  • a phase separator serves a container to which the medium to be separated is supplied and in which the medium in a collecting at the bottom of the container liquid phase (which is then forwarded to the subcooler) and an overlying gas phase (the deducted and possibly one used for other purposes) separates.
  • the phase separator is used in particular to flash gas from the connecting line in the liquid feed line to the cooling bath of the
  • phase separator can also be used for precooling the cooling medium supplied to the main subcooler.
  • another expansion valve is arranged upstream of the phase separator, but downstream of the branch of the connection line, and the
  • Phase separator is operated at a lower pressure than the pressure in the sump of the storage tank, for example, without pressure (1 bar).
  • the additional subcooler or the additional phase separator relieve the main subcooler and reduce the consumption of cooling medium, especially when a particularly low cooling temperature is to be achieved by applying a reduced pressure (p ⁇ 1 bar) in the cooling bath of the main subcooler.
  • the connecting line can flow into the cooling circuit at any point in the cooling circuit, but preferably flows into the cooling circuit upstream of the subcooler in order to minimize the temperature influences of the subcooler on the storage tank.
  • the connecting line flows particularly downstream to the consumer, but upstream into the cooling circuit into the pump.
  • gas discharge line is equipped with a vacuum pump. In this way, the target pressure in the pressure bath receiving the cooling bath can be set below the value
  • the storage tank is equipped with a pressure build-up evaporator, for example an air evaporator. This will be a
  • a yet further preferred embodiment of the invention is characterized in that by means of a measuring and control device, the temperature of the cooling bath in dependence on the heat input in the cooling circuit is adjustable.
  • the temperature of the cooling liquid in the cooling circuit is detected continuously or at predetermined time intervals, and the determined values are fed to a control unit and compared with a desired value of the temperature. Subsequently, the pressure in the cooling bath receiving pressure vessel by readjustment of the
  • the device according to the invention is particularly suitable for cooling a superconducting, in particular high-temperature superconducting, component.
  • the consumer integrated in the cooling circuit is thus a superconducting component, for example a superconducting cable or a superconducting magnet.
  • a superconducting component for example a superconducting cable or a superconducting magnet.
  • Such superconducting components must be to achieve and maintain the
  • the superconducting member is cooled, for example, by means of liquid nitrogen, liquid helium or other liquefied gas.
  • the superconducting components carry virtually no heat into the cooling medium, so they are particularly well suited for cooling by means of a subcooled liquid circulating in a cooling circuit.
  • liquid nitrogen is used as the cooling medium which circulates at a pressure of 8 to 10 bar in the cooling circuit.
  • Cooling circuit arranged subcooler the nitrogen is at a temperature of -206 ° C brought. After passing through the consumer and the pump, it has a temperature of -200 ° C at the inlet of the subcooler.
  • Temperature difference corresponding heat is removed from the liquid nitrogen by the pressure in the cooling bath of the subcooler is brought by means of a vacuum pump to a value of, for example, between 0.15 and 0.2 bar.
  • the pressure in the cooling circuit corresponds to the pressure at the bottom of the reservoir, so that the reservoir can be used according to the invention as a surge tank.
  • Fig. 1 The circuit diagram of a device according to the invention in a first
  • Fig. 2 The circuit diagram of a device according to the invention in a second
  • Fig. 3 The circuit diagram of a device according to the invention in the third first
  • the device 1 shown in Figure 1 comprises a cooling circuit 2 for cooling a consumer, not shown here, for example, a superconducting cable or magnet.
  • the cooling circuit 2 comprises a feed line 3 for introducing a liquid cooling medium, in particular a cryogenic cooling medium such as
  • liquid nitrogen LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for example, liquid nitrogen, LNG or a liquefied noble gas, for
  • a subcooler 6 Downstream of the pump 5, a subcooler 6 is arranged in the flow line.
  • the subcooler 6 comprises a pressure vessel 7 in which a cooling bath 8 is accommodated is.
  • the feed line 3 passed through the pressure vessel 7 emerges with a heat exchanger, for example a cooling coil 9.
  • a feed line 12 connected to the sump of a storage tank 11, for example a standing tank, opens into the pressure vessel 7.
  • the pressure in the storage tank 1 1 is held via a tank pressure control, for example, including an air evaporator 13 to a predetermined value.
  • an expansion valve 14 is arranged, by means of which a maximum pressure in the supply line 12 downstream of the expansion valve 14 is adjustable.
  • a gas discharge line 15 in which - optionally - a vacuum pump 16 is integrated.
  • the cooling circuit 2 and the flow-connected to the storage tank 1 1 valves are not independent of each other, but coupled via a connecting line 1 7 between a branch point 18 upstream to the expansion valve and a branch point 19 upstream of the pump 5, a flow connection between the supply line 12 and the cooling circuit 2 produces.
  • Cooling circuit 2 The pressure in the cooling circuit 2 substantially corresponds to the pressure at the bottom of the storage tank 1 1, thus has a boiling temperature which is higher than that prevailing at the liquid surface in the storage tank 1 1
  • the cooling medium is supplied to a consumer via the supply line 3 in the supercooled state, and by
  • the cooling medium in the flow line 3 by means of the subcooler 6 to a predetermined temperature of, for example, 5 K to 10 K. cooled below its boiling point.
  • the "predetermined temperature” is selected such that the total heat input in the cooling circuit 2 is not sufficient or at most sufficient to heat the supercooled cooling medium to its boiling temperature. so that the boiling temperature at the pressure present in the pressure vessel 7 is below the predetermined temperature of the cooling medium in the flow line 3.
  • the required pressure is at
  • Relaxation valve 14 is set; If necessary, the pressure can be reduced by the use of the vacuum pump 16 to a pressure of less than 1 bar.
  • the gas discharged via the gas discharge line 15 is discharged into the environment or fed to a further use.
  • the pressure in the pressure vessel 7 is regulated as a function of a measured temperature of the cooling medium in the flow line 3.
  • a compensation volume is required. As such a compensating volume is used in the device 1, the storage tank 1 1, as over the during operation of the
  • Cooling circuit 2 assigned separate compensating vessel. Since the branch point 18 is arranged in the supply line 12 upstream of the expansion valve 14, and the expansion valve 14 regulates to a predetermined final pressure, pressure fluctuations occurring in the cooling circuit 2 do not lead to a significant influence on the pressure conditions in the container. 7
  • the device 20 shown in Fig. 2 differs from the device 1 only by an additional subcooler 21, which is arranged in the supply line 12 upstream of the expansion valve 14.
  • the subcooler 21 has a heat exchanger 22, which is accommodated in a cooling bath 23.
  • the cooling bath 23 is also fed from the storage tank 1 1, but an expansion valve 24 ensures that the pressure in the cooling bath 23 is lower than in the conduit 12, and that the temperature of the cooling bath 23 is lower than the temperature of the cooling medium flowing through the heat exchanger 22.
  • phase separator 26 is located in the supply line 12, upstream of the expansion valve 14, and another expansion valve 27 upstream of the latter.
  • the phase separator comprises a vessel 28 in which gaseous cooling medium flows upstream of the phase separator 26 was formed by evaporation of liquid cooling medium and / or was entered from the cooling circuit 2 via the connecting line 19, in one
  • Gas phase 29 collects in the phase separator 26, while the left in the liquid state cooling medium in the phase separator 26 forms a liquid phase 30.
  • the liquid phase 30 is fluidly connected to the subcooler 6 via the section of the supply line 12 located downstream of the phase separator 26, while gas can be removed from the gas phase 29 via a gas discharge line 31 connected to the gas phase 29.
  • Cooling medium can be used by the gas phase 29 is maintained during operation at a lower pressure than the pressure at the bottom of the storage tank 1 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

According to the prior art, a super-cooled liquid medium, for example a super-cooled liquid nitrogen, is pumped through a sub-cooler and is thereby cooled by the same medium that evaporates in the vacuum. This super-cooled nitrogen is then used as a coolant for a consumer. If only a small amount of heat is emiited by the consumer to the nitrogen, the liquid medium can be guided in the circuit, in which the sub-cooler is arranged. For compensating volume fluctuations, such a circuit requires a compensation vessel which, however, is very expensive and can furthermore only be operated in the presence of a super-cooled medium when either a part of the medium is heated using external energy, or an inert gas which boils at very low temperatures has to be used as a pressure compensation medium. According to the invention, it is proposed that the supply container for the liquid medium is integrated into the cooling circuit and is used as a compensation vessel. As a result, the use of a separate compensation vessel can be dispensed with.

Description

Vorrichtung zum Kühlen eines Verbrauchers mit einer unterkühlten Flüssigkeit in einem Kühlkreislauf  Device for cooling a consumer with a supercooled liquid in a cooling circuit

Die Erfindung betrifft eine Vorrichtung zum Kühlen eines Verbrauchers, mit einem dem Verbraucher zugeordneten Kühlkreislauf zum Zirkulieren einer Kühlflüssigkeit, in dem eine Pumpe sowie ein Unterkühler vorgesehen ist, wobei der Unterkühler über eine mit einem Entspannungsventil ausgerüstete Zuführleitung mit einem Vorratstank für die Kühlflüssigkeit strömungsverbunden Behälter zur Aufnahme eines Kühlbades, eine am Behälter angeordnete Gasabzugsleitung zum Abführen verdampfter Kühlflüssigkeit sowie einen beim bestimmungsgemäßen Einsatz der Vorrichtung in das Kühlbad eintauchenden und in den Kühlkreislauf integrierten Wärmetauscher aufweist. The invention relates to a device for cooling a consumer, with a consumer associated cooling circuit for circulating a cooling liquid, in which a pump and a subcooler is provided, wherein the subcooler via a equipped with a relief valve supply line with a storage tank for the cooling fluid flow connected to the container Including a cooling bath, a arranged on the container gas discharge line for discharging vaporized cooling liquid and immersed in the intended use of the device in the cooling bath and integrated into the cooling circuit heat exchanger.

Tiefsiedende verflüssigte Gase, wie beispielsweise flüssiger Stickstoff, flüssiger Sauerstoff oder verflüssigte Edelgase, können nur durch besonders gute Isolation der Speicherbehälter und der Rohrleitungen flüssig gehalten werden. Schon die geringste Wärmeeinstrahlung oder Reibungswärme kann je nach Siedezustand zu einer Teilverdampfung führen. Durch die Teilverdampfung sammeln sich Low-boiling liquefied gases, such as, for example, liquid nitrogen, liquid oxygen or liquefied noble gases, can only be kept liquid by means of particularly good insulation of the storage tanks and the pipelines. Even the slightest heat or frictional heat can lead to partial evaporation, depending on the boiling state. Through the partial evaporation collect

Siedebläschen im Kühlkreislauf, die die vorgesehene Kühlaufgabe beeinträchtigen. Um der Teilverdampfung entgegenzuwirken, empfiehlt es sich daher, die Flüssigkeit vor ihrer Zuführung an einen wärmeabgebenden Verbraucher zu unterkühlen. Als „Unterkühlung" wird im Kontext der vorliegenden Erfindung die Kühlung einer Flüssigkeit auf eine Temperatur unterhalb ihrer Siedetemperatur beim jeweiligen Druck verstanden. Bei höher siedenden verflüssigen Gasen, wie z.B. Kohlendioxid oder fluorierten Kohlenwasserstoffen, lässt sich eine Unterkühlung verhältnismäßig einfach bewerkstelligen Hierzu wird das flüssige Kühlmittel im Lagertank mittels eines elektrischen Kühlaggregates so weit unterkühlt, dass bei der Umwälzung in einem Ringleitungssystem durch Wärmeeinstrahlung und Reibungsverluste keine Teilverdampfung auftritt. Die hierzu notwendigen Aggregate sind jedoch aufgrund ihres hohen Leistungsbedarfs sehr teuer in Anschaffung und Betrieb. Siedebläschen in the cooling circuit, which affect the intended cooling task. To counteract the partial evaporation, it is therefore advisable to subcool the liquid before it is supplied to a heat-emitting consumer. In the context of the present invention, "subcooling" is understood as meaning the cooling of a liquid to a temperature below its boiling point at the respective pressure .super cooling can be effected relatively easily in the case of relatively high-boiling liquefied gases, for example carbon dioxide or fluorinated hydrocarbons In the storage tank by means of an electric cooling unit so far supercooled that during the circulation in a loop system by heat radiation and friction losses no partial evaporation occurs.The aggregates required for this purpose, however, are very expensive to purchase and operate due to their high power requirements.

In der DE 2929709 A1 wird eine Vorrichtung zum Unterkühlen einer Flüssigkeit beschrieben. Die Vorrichtung besteht aus einem wärmeisolierten Behälter, in dem ein Kühlbad aus einem verflüssigten kryogenen Kühlmedium aufgenommen und in dessen Kopfraum ein Gasauslassventil angeordnet ist. Im Kühlbad ist ein von der zu unterkühlenden Flüssigkeit durchströmter Wärmetauscher, beispielsweise eine Kühlschlange, angeordnet. Zur Unterkühlung der Flüssigkeit wird dafür gesorgt, dass der Druck über dem Kühlbad geringer ist als der Druck innerhalb der Kühlschlange. Da sich das Kühlbad zwar im Siedezustand befindet, sein Druck aber gegenüber dem Druck der zu unterkühlenden Flüssigkeit reduziert ist, liegt seine DE 2929709 A1 describes a device for subcooling a liquid. The device consists of a thermally insulated container in which a cooling bath taken from a liquefied cryogenic cooling medium and in the headspace of a gas outlet valve is arranged. In the cooling bath, a heat exchanger through which the liquid to be undercooled flows, for example a cooling coil, is arranged. To overcool the fluid, ensure that the pressure across the cooling bath is less than the pressure within the cooling coil. Since the cooling bath is indeed in the boiling state, but its pressure is reduced compared to the pressure of the liquid to be undercooled, is his

Siedetemperatur unter der Siedetemperatur der zu unterkühlenden Flüssigkeit, die dadurch unterkühlt wird und innerhalb der bereits aufgetretene Gasblasen wieder verflüssigt werden. Je niedriger der Druck über dem Kühlbad ist, um so niedriger ist auch seine Siedetemperatur und um so wirkungsvoller ist die Unterkühlung der Flüssigkeit in der Kühlschlange. Boiling temperature below the boiling point of the liquid to be supercooled, which is thereby undercooled and liquefied within the already occurred gas bubbles. The lower the pressure across the cooling bath, the lower its boiling temperature, and the more effective the supercooling of the liquid in the cooling coil.

Ein derartiger Unterkühler kann nun zur Kühlung eines Verbrauchers eingesetzt werden, indem er beispielsweise in einen dem Verbraucher zugeordneten Such a subcooler can now be used to cool a consumer by, for example, in a consumer assigned

Kühlkreislauf eingebaut wird. Durch den Unterkühler wird dem Verbraucher laufend unterkühlte Kühlflüssigkeit zugeführt. Bei entsprechender Auslegung ist es möglich, die bei der Unterkühlung der Kühlflüssigkeit entnommene Wärme dem Cooling circuit is installed. Through the subcooler the consumer is constantly supplied undercooled cooling liquid. With appropriate design, it is possible that removed during the supercooling of the cooling liquid heat the

Wärmeeintrag durch den Verbraucher derart anzupassen, dass die Kühlflüssigkeit auch beim Wärmekontakt mit dem Verbraucher nicht ihre Siedetemperatur erreicht, sodass sie im Kühlkreislauf im stets flüssigen Zustand vorliegt. Adjusting heat input by the consumer so that the cooling liquid does not reach its boiling temperature even when in thermal contact with the consumer, so that it is always in the liquid state in the cooling circuit.

Kühlkreisläufe dieser Art sollten zum Ausgleich von Dichte- oder Volumenschwankungen, insbesondere auch im Falle eines unregelmäßigen Wärmeeintrags, mit einem Ausgleichsgefäß ausgerüstet sein, in dem sich oberhalb eines Pegels der Kühlflüssigkeit ein Gas zum Druckausgleich befindet. Beispielsweise wird in der EP 1 355 1 14 A2 ein geschlossener Kühlkreislauf zum Kühlen von Bauteilen, wie beispielsweise hochtemperatursupraleitende Kabel, mit einer kryogenen Flüssigkeit als Kälteträger beschrieben, bei dem ein dem Kühlkreislauf zugeordnetes Cooling circuits of this type should be equipped to compensate for density or volume fluctuations, especially in the case of an irregular heat input, with a surge tank in which above a level of the cooling liquid is a gas for pressure equalization. For example, EP 1 355 1 14 A2 describes a closed cooling circuit for cooling components, such as, for example, high-temperature superconducting cables, with a cryogenic liquid as a coolant, in which a cooling circuit associated with the cooling circuit

Ausgleichsgefäß dazu dient, den Kühlkreislauf unter einem erhöhten Betriebsdruck von beispielsweise 2 bar bis 20 bar zu halten und plötzlich auftretende Gasbildungen im geschlossenen Kreislauf sowie Leckageverluste auszugleichen. Das Compensation vessel serves to keep the cooling circuit under an increased operating pressure of, for example, 2 bar to 20 bar and compensate for sudden gas formation in a closed circuit and leakage losses. The

Ausgleichsgefäß ist dabei unmittelbar mit dem Kühlkreislauf verbunden und mit der gleichen kryogenen Flüssigkeit befüllt, die auch im Kühlkreislauf umläuft. Der im Kühlkreislauf integrierte Ausgleichsbehälter schränkt jedoch die Möglichkeiten und insbesondere die Temperaturen ein, mit denen der Kühlkreislauf betrieben werden kann. Insbesondere gelingt der Druckausgleich mittels verdampfter Equalizing vessel is connected directly to the cooling circuit and filled with the same cryogenic liquid that circulates in the cooling circuit. However, the integrated in the cooling circuit expansion tank limits the possibilities and in particular the temperatures with which the cooling circuit can be operated. In particular, the pressure equalization by means of vaporized succeeds

Kühlflüssigkeit nicht oder nicht ohne weiteres bei Kühlkreisläufen, die mit Coolant not or not readily in cooling circuits with

unterkühlten Flüssigkeiten arbeiten, da ein Eindringen unterkühlter Flüssigkeit in den Ausgleichsbehälter das dort anwesende gasförmige Kühlmedium kondensieren und den Druck im Ausgleichsbehälter unter den Betriebsdruck senken würde. Als Undercooled liquids work as an infiltration of supercooled liquid in the surge tank condense the gaseous cooling medium present there and would reduce the pressure in the expansion tank below the operating pressure. When

Ausweg könnte in Betracht gezogen werden, ein tiefer siedendes Gas, Way out could be considered, a lower-boiling gas,

beispielsweise Helium, als Druckausgleichsgas im Gasraum des For example, helium, as pressure equalizing gas in the gas space of the

Ausgleichsbehälters zu verwenden oder innerhalb des Ausgleichsbehälters eine Trennmembran zwischen Gasphase und Flüssigphase vorzusehen. Beides ist jedoch mit einem hohen Aufwand an Aufbau und Unterhalt verbunden. Use equalization tank or provide within the expansion tank a separation membrane between gas phase and liquid phase. Both, however, is associated with a high cost of construction and maintenance.

Der Erfindung liegt daher die Aufgabe zu Grunde, eine Vorrichtung zum Kühlen eines Verbrauchers mit einer unterkühlten Kühlflüssigkeit in einem Kühlkreislauf zu schaffen, bei der ein Druckausgleich im Kühlkreislauf mit einfachen Mitteln zu realisieren ist. The invention is therefore based on the object to provide a device for cooling a consumer with a supercooled cooling liquid in a cooling circuit, in which a pressure compensation in the cooling circuit can be realized with simple means.

Diese Aufgabe ist bei einer Vorrichtung der eingangs genannten Art und This object is in a device of the type mentioned and

Zweckbestimmung dadurch gelöst, dass vom Kühlkreislauf eine beim Purpose solved by the fact that the cooling circuit in the

bestimmungsgemäßen Einsatz der Vorrichtung strömungsoffene Verbindungsleitung abzweigt, die mit dem Vorratstank und/oder oder der zum Kühlbad des Unterkühlers führenden Zuführleitung stromauf zum Entspannungsventil, strömungsverbunden ist. intended use of the device opens flow-open connection line, which is flow-connected to the storage tank and / or or leading to the cooling bath of the subcooler supply upstream to the expansion valve.

Die erfindungsgemäße Vorrichtung umfasst also in an sich zunächst bekannter Weise einen Kühlkreislauf, in dem neben dem Verbraucher eine Pumpe zum The device according to the invention thus comprises in a manner known per se a cooling circuit in which, in addition to the consumer, a pump for

Fördern der Kühlflüssigkeit (die Begriffe„Kühlflüssigkeit" und„flüssiges Kühlmedium" werden im Folgenden synonym verwendet), sowie ein stromauf zum Verbraucher angeordneter Unterkühler vorgesehen ist. Durch den Unterkühler wird die Conveying the cooling liquid (the terms "cooling liquid" and "liquid cooling medium" are used synonymously below), as well as an upstream arranged to the consumer subcooler is provided. Through the subcooler is the

Kühlflüssigkeit auf eine Temperatur unterhalb ihrer Siedetemperatur beim jeweiligen Druck gebracht, wobei zweckmäßigerweise die Unterkühlung so weit erfolgt, dass die der Kühlflüssigkeit bei der Unterkühlung entnommene Wärmemenge zumindest den Wärmeeintrag durch den Verbraucher, die Pumpe und etwaige Leitungsverluste kompensiert. Der Unterkühler umfasst einen im Kühlkreislauf integrierten Wärmetauscher, durch den das zu unterkühlende flüssige Kühlmedium strömt und der in einem Kühlbad aufgenommen ist. Das Kühlbad ist seinerseits in einem druckfesten und gasdichten Behälter aufgenommen und besteht aus der gleichen Substanz wie die im Kühlkreislauf umlaufende Kühlflüssigkeit, liegt jedoch bei einer niedrigeren Temperatur als diese vor. Um die niedrige Temperatur des Kühlbads zu erreichen, wird über eine Gasableitung der Druck der Gasphase über dem Kühlbad entsprechend eingestellt, und zwar auf einen Wert (nachfolgend„Zieldruck" genannt), bei dem die Siedetemperatur der Kühlflüssigkeit im Kühlbad unterhalb der Siedetemperatur der Kühlflüssigkeit im Kühlkreislauf liegt. Die Temperaturdifferenz zwischen Kühlmedium im Kühlkreislauf wird also im Wesentlichen aufgrund einer Druckdifferenz zwischen Kühlbad und Kühlkreislauf bewirkt. Durch den Cooling liquid brought to a temperature below its boiling temperature at the respective pressure, wherein expediently the subcooling takes place so far that the heat removed from the cooling liquid at the subcooling at least the heat input by the consumer, the pump and any line losses compensated. The subcooler comprises a heat exchanger integrated in the cooling circuit through which the liquid cooling medium to be subcooled flows and which is accommodated in a cooling bath. The cooling bath is in turn received in a pressure-tight and gas-tight container and consists of the same substance as the circulating in the cooling circuit cooling liquid, but is at a lower temperature than this. In order to achieve the low temperature of the cooling bath, the pressure of the gas phase above the cooling bath is adjusted by a gas discharge, namely to a value (hereinafter referred to as "target pressure"), in which the boiling temperature of the cooling liquid in the cooling bath below the boiling temperature of the cooling liquid The temperature difference between the cooling medium in the cooling circuit is thus essentially caused by a pressure difference between the cooling bath and the cooling circuit

Wärmetausch mit dem Kühlbad wird die Kühlflüssigkeit im Kühlkreislauf auf eine Temperatur unterhalb ihres Siedepunktes gebracht (nachfolgend„Zieltemperatur" genannt). Die Differenz zwischen Siedetemperatur im Kühlkreislauf und der Heat exchange with the cooling bath, the cooling liquid in the cooling circuit is brought to a temperature below its boiling point (hereinafter "target temperature" called.) The difference between the boiling temperature in the cooling circuit and the

Zieltemperatur wird dabei im Wesentlichen durch den Wärmeeintrag durch den Verbraucher, die Pumpe und die Leitungen des Kühlkreislaufs bestimmt, und kann insbesondere auch in Abhängigkeit vom Wärmeeintrag geregelt werden. Um den aufgrund des Wärmeeintrags am Wärmetauscher eintretenden Verlust an Target temperature is determined essentially by the heat input by the consumer, the pump and the lines of the cooling circuit, and can be controlled in particular depending on the heat input. To the occurring due to the heat input to the heat exchanger loss

Kühlflüssigkeit im Kühlbad zu kompensieren, steht das das Kühlbad aufnehmende Druckgefäß mit einem Vorratstank für Kühlflüssigkeit in Strömungsverbindung. Die den Sumpf des Vorratstanks mit dem Kühlbad verbindende Flüssigkeitszuleitung ist mit einem Entspannungsventil ausgerüstet, welches gewährleistet, dass der To compensate for cooling liquid in the cooling bath, the pressure vessel receiving the cooling bath is in fluid communication with a storage tank for cooling liquid. The liquid supply line connecting the sump of the storage tank with the cooling bath is equipped with an expansion valve, which ensures that the

Zieldruck über dem Kühlbad nicht überschritten wird. Als flüssiges Kühlmedium kommt bevorzugt ein tiefkaltes verflüssigtes Gas, beispielsweise flüssiger Stickstoff oder ein verflüssigtes Edelgas, zum Einsatz. Target pressure above the cooling bath is not exceeded. The liquid cooling medium used is preferably a cryogenic liquefied gas, for example liquid nitrogen or a liquefied inert gas.

Um im Kühlkreislauf einen aufgrund von möglichen Dichte- oder Volumenschwankungen erforderlichen Druckausgleich zu schaffen, wird gemäß der Erfindung der Vorratstank selbst eingesetzt. Dazu ist der Vorratstank mit dem Kühlkreislauf über eine Verbindungsleitung stromungsverbunden, die von der Flüssigkeitszuleitung stromauf zum Entspannungsventil abzweigt und die während des In order to create a pressure compensation required in the cooling circuit due to possible density or volume fluctuations, the storage tank itself is used according to the invention. For this purpose, the storage tank is stromungsverbunden with the cooling circuit via a connecting line, which branches off from the liquid supply upstream to the expansion valve and during the

bestimmungsgemäßen Einsatzes der Vorrichtung stets in beiden Richtungen strömungsoffen gehalten wird. Die Verbindungsleitung mündet dabei in den Vorratstank selbst oder in die den Vorratstank mit dem Kühlbad im Unterkühler verbindende Flüssigkeitszuleitung ein, in jedem Falle stromauf zum Proper use of the device is always kept open in both directions. The connecting line opens into the Storage tank itself or in the storage tank connected to the cooling bath in the subcooler liquid supply, in each case upstream to

Entspannungsventil. Bei Auftreten einer Dichte- oder Volumenschwankung kann auf diese Weise Kühlflüssigkeit aus dem Vorratstank in den Kühlkreislauf zu- bzw. aus diesem in den Vorratstank abfließen, ohne dass hierdurch die Druckverhältnisse im Bereich des Kühlbades wesentlich beeinflusst werden. Der eigentliche Druckausleich erfolgt über die im Vorratstank über der Kühlflüssigkeit vorliegenden Gasphase. Insbesondere dann, wenn im Vorratstank ein im Vergleich zum Volumen des Expansion valve. Upon the occurrence of a density or volume fluctuation, cooling liquid can flow from the storage tank into the cooling circuit or flow out of it into the storage tank in this manner, without this significantly affecting the pressure conditions in the region of the cooling bath. The actual pressure equalization takes place via the gas phase present in the storage tank above the cooling liquid. In particular, if in the storage tank in comparison to the volume of the

Kühlkreislaufs großes Volumen an Kühlflüssigkeit aufrecht erhalten wird, verhindert die Menge der Kühlflüssigkeit im Vorratstank und sein hydrostatischer Druck, dass über die Verbindungsleitung in den Sumpf des Vorratstanks einströmende Cooling circuit is maintained large volume of cooling liquid, prevents the amount of cooling liquid in the storage tank and its hydrostatic pressure that flows through the connecting line in the bottom of the storage tank

unterkühlte Kühlflüssigkeit die Temperatur des flüssigen Kühlmediums im supercooled coolant the temperature of the liquid cooling medium in the

Vorratstank so weit herabsetzt, dass die Gasphase im Vorratstank kollabiert. Der Druck im Vorratsbehälter kann jedoch ggf. mittels eines mit dem Vorratstank verbundenen Druckaufbauverdampfers, beispielsweise eines Luftverdampfers, auf einen vorgegebenen Druck gehalten werden. Ein separates Ausgleichsgefäß ist daher im Kühlkreislauf nicht erforderlich, wodurch zudem der Aufbau der Reduce the storage tank so far that the gas phase in the storage tank collapses. However, if necessary, the pressure in the storage container can be kept at a predetermined pressure by means of a pressure build-up evaporator, for example an air evaporator, connected to the storage tank. A separate expansion tank is therefore not required in the cooling circuit, thereby also the structure of the

erfindungsgemäßen Kühlvorrichtung gegenüber Kühlkreisläufen nach dem Stande der Technik vereinfacht und der durch den Wärmeeintrag in das Ausgleichsgefäß verursachte Energieverlust vermieden wird. Cooling device according to the invention over cooling circuits simplified according to the prior art and the energy loss caused by the heat input into the surge tank is avoided.

Bei einer vorteilhaften Ausgestaltung der Erfindung ist in der Flüssigkeitszuleitung, stromauf zum Entspannungsventil, jedoch stromab zur Ausmündung der In an advantageous embodiment of the invention is in the liquid supply, upstream of the expansion valve, but downstream to the mouth of the

Verbindungsleitung in der Flüssigkeitszuleitung, ein zweiter Unterkühler angeordnet. Durch den zweiten Unterkühler wird verhindert, dass mehr als nur ein unwesentlicher Teil des flüssigen Kühlmediums beim Erreichen des Entspannungsventil im gasförmigen Zustand vorliegt, was die Funktionsfähigkeit des Entspannungsventils beeinträchtigen und auch die Funktionsfähigkeit des ersten Unterkühlers Connecting line in the liquid supply line, a second subcooler arranged. The second subcooler prevents more than just an insignificant part of the liquid cooling medium from reaching the expansion valve in the gaseous state, which adversely affects the functioning of the expansion valve and also the functionality of the first subcooler

(nachfolgend„Hauptunterkühler" genannt) beeinflussen würde. Als zweiter (hereinafter referred to as "main subcooler")

Unterkühler kommt beispielsweise ein Gegenstand zum Einsatz, bei dem eine das zu unterkühlende Medium transportierende Leitung durch ein Kühlbad geführt und mit diesem thermisch verbunden ist, dessen Temperatur niedriger ist als das durch die Leitung geführte Medium. Eine andere vorteilhafte Ausführungsform der Erfindung sieht vor, dass in der Zuführleitung, stromauf zum Entspannungsventil und stromab zur Abzweigung der Verbindungsleitung ein Phasenabscheider vorgesehen ist. Als Phasenabscheider dient beispielsweise ein Behälter, dem das zu trennende Medium zugeführt wird und in dem sich das Medium in eine sich am Boden des Behälters sammelnde flüssige Phase (die anschließend zum Unterkühler weitergeleitet wird) und eine darüber befindliche Gasphase (die abgezogen und ggf. einer anderweitigen Verwendung zugeführt wird) auftrennt. Der Phasenabscheider dient insbesondere dazu, Flash- Gas aus der Verbindungsleitung in die Flüssigzuleitung zum Kühlbad des Subcooler, for example, an object is used in which a transporting the medium to be subcooled conduit passed through a cooling bath and is thermally connected to this, the temperature of which is lower than the medium guided through the conduit. Another advantageous embodiment of the invention provides that a phase separator is provided in the supply line, upstream of the expansion valve and downstream of the branch line. As a phase separator, for example, serves a container to which the medium to be separated is supplied and in which the medium in a collecting at the bottom of the container liquid phase (which is then forwarded to the subcooler) and an overlying gas phase (the deducted and possibly one used for other purposes) separates. The phase separator is used in particular to flash gas from the connecting line in the liquid feed line to the cooling bath of the

Hauptunterkühlers von der Flüssigkeit zu trennen und nicht in den Hauptunterkühler gelangen zu lassen. Der Phasenabscheider kann im Übrigen auch zum Vorkühlen des dem Hauptunterkühler zugeführten Kühlmediums eingesetzt werden. In diesem Fall ist stromauf zum Phasenabscheider, jedoch stromab zur Abzweigung der Verbindungsleitung ein weiteres Entspannungsventil angeordnet, und der Main subcooler to be separated from the liquid and not to get into the main subcooler. Incidentally, the phase separator can also be used for precooling the cooling medium supplied to the main subcooler. In this case, another expansion valve is arranged upstream of the phase separator, but downstream of the branch of the connection line, and the

Phasenabscheider wird bei einem niedrigeren Druck als der Druck in Sumpf des Vorratstanks, beispielsweise drucklos (1 bar), betrieben. Der zusätzliche Unterkühler bzw. der zusätzliche Phasenabscheider entlasten den Hauptunterkühler und reduzieren den Verbrauch an Kühlmedium insbesondere dann, wenn durch Anlegen eines Unterdrucks (p < 1 bar) im Kühlbad des Hauptunterkühlers eine besonders tiefe Kühltemperatur erreicht werden soll. Phase separator is operated at a lower pressure than the pressure in the sump of the storage tank, for example, without pressure (1 bar). The additional subcooler or the additional phase separator relieve the main subcooler and reduce the consumption of cooling medium, especially when a particularly low cooling temperature is to be achieved by applying a reduced pressure (p <1 bar) in the cooling bath of the main subcooler.

Grundsätzlich kann die Verbindungsleitung an jedem Punkt des Kühlkreislaufs in diesen einmünden, bevorzugt jedoch mündet sie stromauf zum Unterkühler in den Kühlkreislauf ein, um die Temperatureinflüsse des Unterkühlers auf den Vorratstank so gering wie möglich zu halten. Um etwaige Dichteschwankungen im Bereich des Verbrauchers besonders gut ausgleichen zu können, mündet besonders bevorzugt die Verbindungsleitung stromab zum Verbraucher, jedoch stromauf zur Pumpe in den Kühlkreislauf ein. In principle, the connecting line can flow into the cooling circuit at any point in the cooling circuit, but preferably flows into the cooling circuit upstream of the subcooler in order to minimize the temperature influences of the subcooler on the storage tank. In order to be able to compensate particularly well for any density fluctuations in the area of the consumer, the connecting line flows particularly downstream to the consumer, but upstream into the cooling circuit into the pump.

Eine vorteilhafte Weiterbildung der Erfindung sieht vor, dass die Gasabzugsleitung mit einer Vakuumpumpe ausgerüstet ist. Auf diese Weise kann der Zieldruck in dem das Kühlbad aufnehmenden Druckbehälter auf einen Wert unterhalb des An advantageous development of the invention provides that the gas discharge line is equipped with a vacuum pump. In this way, the target pressure in the pressure bath receiving the cooling bath can be set below the value

Umgebungsdrucks, also unterhalb von 1 bar, abgesenkt werden und somit eine noch tiefere Temperatur im Kühlbad erreicht werden. Vorteilhafterweise ist der Vorratstank mit einem Druckaufbauverdampfer, beispielsweise einem Luftverdampfer, ausgerüstet. Dadurch wird ein Ambient pressure, ie below 1 bar, lowered and thus an even lower temperature can be achieved in the cooling bath. Advantageously, the storage tank is equipped with a pressure build-up evaporator, for example an air evaporator. This will be a

gleichbleibender Druck im Vorratstank aufrecht erhalten. maintained constant pressure in the storage tank upright.

Eine abermals bevorzugte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass mittels einer Mess- und Regeleinrichtung die Temperatur des Kühlbades in Abhängigkeit vom Wärmeeintrag im Kühlkreislauf regelbar ist. So wird beispielsweise die Temperatur der Kühlflüssigkeit im Kühlkreislauf laufend oder in vorgegeben Zeitabständen erfasst und die ermittelten Werte einer Regeleinheit zugeleitet und mit einem Sollwert der Temperatur verglichen. Anschließend wird der Druck in dem das Kühlbad aufnehmenden Druckbehälter durch Nachjustierung des A yet further preferred embodiment of the invention is characterized in that by means of a measuring and control device, the temperature of the cooling bath in dependence on the heat input in the cooling circuit is adjustable. Thus, for example, the temperature of the cooling liquid in the cooling circuit is detected continuously or at predetermined time intervals, and the determined values are fed to a control unit and compared with a desired value of the temperature. Subsequently, the pressure in the cooling bath receiving pressure vessel by readjustment of the

Entspannungsventils im Flüssigkeitszulauf und/oder der Vakuumpumpe am Expansion valve in the liquid inlet and / or the vacuum pump on

Gasauslass eingestellt. Gas outlet set.

Besonders eignet sich die erfindungsgemäße Vorrichtung zur Kühlung eines supraleitenden, insbesondere hochtemperatursupraleitenden, Bauteils. In diesem Falle ist der im Kühlkreislauf integrierte Verbraucher also ein supraleitendes Bauteil, beispielsweise ein supraleitendes Kabel oder ein supraleitender Magnet. Derartige supraleitende Bauteile müssen zur Erreichung und Aufrechterhaltung des The device according to the invention is particularly suitable for cooling a superconducting, in particular high-temperature superconducting, component. In this case, the consumer integrated in the cooling circuit is thus a superconducting component, for example a superconducting cable or a superconducting magnet. Such superconducting components must be to achieve and maintain the

supraleitenden Zustandes auf einer niedrigen Betriebstemperatur gehalten werden, deren Wert, abhängig vom Material und der Belastung durch Strom und superconducting state are kept at a low operating temperature, their value, depending on the material and the load of electricity and

magnetischem Fluss, zwischen nahezu Null und derzeit (bei einigen magnetic flux, between near zero and currently (in some

Hochtemperatursupraleitern) bei ca. 140 K beträgt. Zur Erreichung der High-temperature superconductors) at about 140 K. To achieve the

Betriebstemperatur wird das supraleitende Bauteil beispielsweise mittels flüssigem Stickstoff, flüssigem Helium oder einem anderen verflüssigten Gas gekühlt. Während des Betriebs tragen die supraleitenden Bauteile jedoch so gut wie keine Wärme in das Kühlmedium ein, sie eignen sich daher besonders gut zur Kühlung mittels einer in einem Kühlkreislauf umlaufenden unterkühlten Flüssigkeit. Operating temperature, the superconducting member is cooled, for example, by means of liquid nitrogen, liquid helium or other liquefied gas. During operation, however, the superconducting components carry virtually no heat into the cooling medium, so they are particularly well suited for cooling by means of a subcooled liquid circulating in a cooling circuit.

Beispiel: Example:

In einem Kühlkreislauf zum Kühlen eines Verbrauchers, beispielsweise eines supraleitenden Kabels, komme flüssiger Stickstoff als Kühlmedium zum Einsatz, der bei einem Druck von 8 bis 10 bar im Kühlkreislauf zirkuliert. Durch einen im In a cooling circuit for cooling a load, for example a superconducting cable, liquid nitrogen is used as the cooling medium which circulates at a pressure of 8 to 10 bar in the cooling circuit. By a in the

Kühlkreislauf angeordneten Unterkühler wird der Stickstoff auf eine Temperatur von -206 °C gebracht. Nach Durchlaufen von Verbraucher und Pumpe weist er am Eingang des Unterkühlers eine Temperatur von -200°Cauf. Die der Cooling circuit arranged subcooler, the nitrogen is at a temperature of -206 ° C brought. After passing through the consumer and the pump, it has a temperature of -200 ° C at the inlet of the subcooler. The the

Temperaturdifferenz entsprechende Wärme wird dem flüssigen Stickstoff entzogen, indem der Druck im Kühlbad des Unterkühlers mittels einer Vakuumpumpe auf einen Wert von beispielsweise zwischen 0,15 und 0,2 bar gebracht wird. Der Druck im Kühlkreislauf entspricht dem Druck am Sumpf des Vorratsbehälters, sodass der Vorratsbehälter entsprechend der Erfindung als Ausgleichsgefäß eingesetzt werden kann. Temperature difference corresponding heat is removed from the liquid nitrogen by the pressure in the cooling bath of the subcooler is brought by means of a vacuum pump to a value of, for example, between 0.15 and 0.2 bar. The pressure in the cooling circuit corresponds to the pressure at the bottom of the reservoir, so that the reservoir can be used according to the invention as a surge tank.

Die Zeichnungen veranschaulichen Ausführungsbeispiele der Erfindung. In schematischen Ansichten zeigen: The drawings illustrate embodiments of the invention. In schematic views show:

Fig. 1 : Das Schaltbild einer erfindungsgemäßen Vorrichtung in einer ersten Fig. 1: The circuit diagram of a device according to the invention in a first

Ausführungsform,  embodiment,

Fig. 2: Das Schaltbild einer erfindungsgemäßen Vorrichtung in einer zweiten  Fig. 2: The circuit diagram of a device according to the invention in a second

Ausführungsform,  embodiment,

Fig. 3: Das Schaltbild einer erfindungsgemäßen Vorrichtung in dritten ersten  Fig. 3: The circuit diagram of a device according to the invention in the third first

Ausführungsform.  Embodiment.

Im Folgenden weisen gleich wirkende Teile der dargestellten Ausführungsformen jeweils die gleiche Bezugsziffer auf. In the following, like-acting parts of the illustrated embodiments each have the same reference number.

Die in Fig 1 gezeigte Vorrichtung 1 umfasst einen Kühlkreislauf 2 zum Kühlen eines hier nicht gezeigten Verbrauchers, beispielsweise eines supraleitenden Kabels oder Magneten. Der Kühlkreislauf 2 umfasst eine Vorlaufleitung 3 zum Hinführen eines flüssigen Kühlmediums, insbesondere eines kryogenen Kühlmediums wie The device 1 shown in Figure 1 comprises a cooling circuit 2 for cooling a consumer, not shown here, for example, a superconducting cable or magnet. The cooling circuit 2 comprises a feed line 3 for introducing a liquid cooling medium, in particular a cryogenic cooling medium such as

beispielsweise flüssiger Stickstoff, LNG oder ein verflüssigtes Edelgas, zum For example, liquid nitrogen, LNG or a liquefied noble gas, for

Verbraucher und eine Rücklaufleitung 4 zum Abführen von flüssigem Kühlmedium vom Verbraucher. Vorlaufleitung 3 und Rücklaufleitung 4 sind miteinander strömungsverbunden, eine Pumpe 5 bewirkt die Förderung des flüssigen Consumers and a return line 4 for discharging liquid cooling medium from the consumer. Supply line 3 and return line 4 are fluidly connected to each other, a pump 5 causes the promotion of the liquid

Kühlmediums im Kühlkreislauf 2. Cooling medium in the cooling circuit 2.

Stromab zur Pumpe 5 ist in der Vorlaufleitung ein Unterkühler 6 angeordnet. Der Unterkühler 6 umfasst einen Druckbehälter 7 in dem ein Kühlbad 8 aufgenommen ist. In das Kühlbad 8 taucht die durch den Druckbehälter 7 hindurch geführte Vorlaufleitung 3 mit einem Wärmetauscher, beispielsweise einer Kühlschlange 9 ein. Zum Zuführen von frischem flüssigem Kühlmedium an das Kühlbad 8 mündet eine mit dem Sumpf eines Vorratstanks 1 1 , beispielsweise einem Standtank, verbundene Zuführleitung 12 in den Druckbehälter 7 ein. Der Druck im Vorratstank 1 1 wird dabei über eine Tankdruckregelung, beispielsweise unter Einbeziehung eines Luftverdampfers 13 auf einem vorgegebenen Wert gehalten. In der Downstream of the pump 5, a subcooler 6 is arranged in the flow line. The subcooler 6 comprises a pressure vessel 7 in which a cooling bath 8 is accommodated is. Into the cooling bath 8, the feed line 3 passed through the pressure vessel 7 emerges with a heat exchanger, for example a cooling coil 9. For supplying fresh liquid cooling medium to the cooling bath 8, a feed line 12 connected to the sump of a storage tank 11, for example a standing tank, opens into the pressure vessel 7. The pressure in the storage tank 1 1 is held via a tank pressure control, for example, including an air evaporator 13 to a predetermined value. In the

Zuführleitung 12 ist ein Entspannungsventil 14 angeordnet, mittels dessen ein maximaler Druck in der Zuführleitung 12 stromab zum Entspannungsventil 14 einstellbar ist. In einem oberen und beim bestimmungsgemäßen Einsatz der Vorrichtung 1 von gasförmigem Kühlmedium gefüllten Bereich innerhalb des Druckbehälters 7 mündet eine Gasabzugsleitung 15 ein, in der - optional - eine Vakuumpumpe 16 integriert ist. Der Kühlkreislauf 2 und die mit dem Vorratstank 1 1 strömungsverbundenen Armaturen sind strömungstechnisch nicht unabhängig voneinander, sondern über eine Verbindungsleitung 1 7 miteinander gekoppelt, die zwischen einem Verzweigungspunkt 18 stromauf zum Entspannungsventil und einem Verzweigungspunkt 19 stromauf zur Pumpe 5 eine Strömungsverbindung zwischen der Zuführleitung 12 und dem Kühlkreislauf 2 herstellt. Supply line 12, an expansion valve 14 is arranged, by means of which a maximum pressure in the supply line 12 downstream of the expansion valve 14 is adjustable. In a top and the intended use of the device 1 of gaseous cooling medium filled area within the pressure vessel 7 opens a gas discharge line 15, in which - optionally - a vacuum pump 16 is integrated. The cooling circuit 2 and the flow-connected to the storage tank 1 1 valves are not independent of each other, but coupled via a connecting line 1 7 between a branch point 18 upstream to the expansion valve and a branch point 19 upstream of the pump 5, a flow connection between the supply line 12 and the cooling circuit 2 produces.

Im Betrieb der Vorrichtung 1 strömt das flüssige Kühlmedium durch den During operation of the device 1, the liquid cooling medium flows through the

Kühlkreislauf 2. Der Druck im Kühlkreislauf 2 entspricht im Wesentlichen dem Druck am Boden des Vorratstanks 1 1 , weist also eine Siedetemperatur auf, die höher ist als die an der Flüssigkeitsoberfläche im Vorratstank 1 1 herrschende Cooling circuit 2. The pressure in the cooling circuit 2 substantially corresponds to the pressure at the bottom of the storage tank 1 1, thus has a boiling temperature which is higher than that prevailing at the liquid surface in the storage tank 1 1

Siedetemperatur des Kühlmediums. Das Kühlmedium wird einem Verbraucher über die Vorlaufleitung 3 im unterkühlten Zustand zugeführt, und das durch Boiling temperature of the cooling medium. The cooling medium is supplied to a consumer via the supply line 3 in the supercooled state, and by

Wärmekontakt mit dem Verbraucher und/oder mit zum bzw. vom Verbraucher führenden Leitungsabschnitten erwärmte Kühlmedium strömt, immer noch im flüssigen und bevorzugt unterkühlten Zustand, über die Rücklaufleitung 4 vom Verbraucher ab und wird mittels der Pumpe 5 wieder in die Vorlaufleitung 3 eingespeist. Thermal contact with the consumer and / or heated to or from the consumer line sections heated cooling medium flows, still in the liquid and preferably supercooled state, via the return line 4 from the consumer and is fed by the pump 5 back into the flow line 3.

Um zu gewährleisten, dass das Kühlmedium im gesamten Kühlkreislauf 2 im flüssigen Zustand vorliegt, wird das Kühlmedium in der Vorlaufleitung 3 mittels des Unterkühlers 6 auf eine vorgegebene Temperatur von beispielsweise 5 K bis 10 K unterhalb seiner Siedetemperatur gekühlt. Die„vorgegebene Temperatur" wird so gewählt, dass der gesamte Wärmeeintrag im Kühlkreislauf 2 nicht oder höchstens ausreicht, um das unterkühlte Kühlmedium auf seine Siedetemperatur zu erwärmen. Dazu wird das Kühlmedium im Kühlbad 8 auf einem niedrigeren Druck als das Kühlmedium im Kühlkreislauf 2 gebracht, sodass die Siedetemperatur bei dem im Druckbehälter 7 vorliegenden Druck unterhalb der vorgegebenen Temperatur des Kühlmediums in der Vorlaufleitung 3 liegt. Der erforderliche Druck wird am In order to ensure that the cooling medium in the entire cooling circuit 2 is in the liquid state, the cooling medium in the flow line 3 by means of the subcooler 6 to a predetermined temperature of, for example, 5 K to 10 K. cooled below its boiling point. The "predetermined temperature" is selected such that the total heat input in the cooling circuit 2 is not sufficient or at most sufficient to heat the supercooled cooling medium to its boiling temperature. so that the boiling temperature at the pressure present in the pressure vessel 7 is below the predetermined temperature of the cooling medium in the flow line 3. The required pressure is at

Entspannungsventil 14 eingestellt; bedarfsweise kann der Druck durch den Einsatz der Vakuumpumpe 16 auch auf einen Druck von unter 1 bar reduziert werden. Das über die Gasabzugsleitung 15 abgeführte Gas wird in die Umgebung abgelassen oder einer weiteren Verwendung zugeführt. Es ist im Übrigen im Rahmen der Erfindung auch vorstellbar, dass der Druck im Druckbehälter 7 in Abhängigkeit von einer gemessenen Temperatur des Kühlmediums in der Vorlaufleitung 3 geregelt wird. Relaxation valve 14 is set; If necessary, the pressure can be reduced by the use of the vacuum pump 16 to a pressure of less than 1 bar. The gas discharged via the gas discharge line 15 is discharged into the environment or fed to a further use. Incidentally, it is also conceivable within the scope of the invention that the pressure in the pressure vessel 7 is regulated as a function of a measured temperature of the cooling medium in the flow line 3.

Im Falle des Auftretens von Druckschwankungen beim Betrieb des Kühlkreislaufs 2 ist ein Ausgleichsvolumen erforderlich. Als ein solche Ausgleichsvolumen dient bei der Vorrichtung 1 der Vorratstank 1 1 , da über die während des Betriebs der In the case of the occurrence of pressure fluctuations during operation of the cooling circuit 2, a compensation volume is required. As such a compensating volume is used in the device 1, the storage tank 1 1, as over the during operation of the

Vorrichtung 1 in beide Richtungen strömungsoffene Verbindungsleitung 19 Device 1 in both directions open flow connection line 19th

Kühlmedium frei zwischen dem Kühlkreislauf 2 und dem Vorratstank 1 1 fließen kann. Für einen gegebenenfalls im Vorratstank 1 1 erforderlichen Druckaufbau sorgt der Druckaufbauverdampfer 13. Die Vorrichtung 1 kommt somit ohne ein dem Cooling medium freely between the cooling circuit 2 and the storage tank 1 1 can flow. For a possibly necessary in the storage tank 1 1 pressure buildup ensures the pressure build-up evaporator 13. The device 1 thus comes without a

Kühlkreislauf 2 zugeordnetes separates Ausgleichsgefäß aus. Da der Abzweigpunkt 18 in der Zuführleitung 12 stromauf zum Entspannungsventil 14 angeordnet ist, und das Entspannungsventil 14 auf einen vorgegebenen Enddruck regelt, führen auftretende Druckschwankungen im Kühlkreislauf 2 nicht zu einer nennenswerten Beeinflussung der Druckverhältnisse im Behälter 7. Cooling circuit 2 assigned separate compensating vessel. Since the branch point 18 is arranged in the supply line 12 upstream of the expansion valve 14, and the expansion valve 14 regulates to a predetermined final pressure, pressure fluctuations occurring in the cooling circuit 2 do not lead to a significant influence on the pressure conditions in the container. 7

Die in Fig. 2 gezeigte Vorrichtung 20 unterscheidet sich von der Vorrichtung 1 lediglich durch einen zusätzlichen Unterkühler 21 , der in der Zuführleitung 12 stromauf zum Entspannungsventil 14 angeordnet ist. Der Unterkühler 21 weist einen Wärmetauscher 22 auf, der in einem Kühlbad 23 aufgenommen ist. Das Kühlbad 23 wird ebenfalls aus dem Vorratstank 1 1 gespeist, wobei jedoch ein Entspannungsventil 24 dafür sorgt, dass der Druck im Kühlbad 23 geringer als in der Leitung 12 ist, und damit die Temperatur des Kühlbades 23 niedriger als die Temperatur des durch den Wärmetauscher 22 fließenden Kühlmediums ist. Durch die Unterkühlung des durch die Zuführleitung 12 fließenden Kühlmediums wird verhindert, dass ein wesentlicher Teil des Kühlmediums das Entspannungsventil 14 im bereits The device 20 shown in Fig. 2 differs from the device 1 only by an additional subcooler 21, which is arranged in the supply line 12 upstream of the expansion valve 14. The subcooler 21 has a heat exchanger 22, which is accommodated in a cooling bath 23. The cooling bath 23 is also fed from the storage tank 1 1, but an expansion valve 24 ensures that the pressure in the cooling bath 23 is lower than in the conduit 12, and that the temperature of the cooling bath 23 is lower than the temperature of the cooling medium flowing through the heat exchanger 22. By the subcooling of the flowing through the supply line 12 cooling medium prevents a substantial part of the cooling medium, the expansion valve 14 in the already

verdampften Zustand erreicht, wodurch die Funktionsfähigkeit des achieved vaporized state, reducing the functionality of the

Entspannungsventils 14 leiden und die Leistungsfähigkeit des Unterkühlter 6 beeinflusst werden würde. Relaxation valve 14 suffer and the performance of the subcooler 6 would be affected.

Bei der in Fig. 3 gezeigten Vorrichtung 25 befindet sich in der Zuführleitung 12, stromauf zum Entspannungsventil 14, ein Phasenseparator 26 und stromauf zu diesem ein weiteres Entspannungsventil 27. Der Phasenseparator umfasst ein Gefäß 28 in dem sich gasförmiges Kühlmedium, das stromauf zum Phasenseparator 26 durch Verdampfen von flüssigem Kühlmedium entstanden ist und/oder aus dem Kühlkreislauf 2 über die Verbindungsleitung 19 eingetragen wurde, in einer In the device 25 shown in FIG. 3, a phase separator 26 is located in the supply line 12, upstream of the expansion valve 14, and another expansion valve 27 upstream of the latter. The phase separator comprises a vessel 28 in which gaseous cooling medium flows upstream of the phase separator 26 was formed by evaporation of liquid cooling medium and / or was entered from the cooling circuit 2 via the connecting line 19, in one

Gasphase 29 im Phasenseparator 26 sammelt, während das im flüssigen Zustand verbliebene Kühlmedium im Phasenseparator 26 eine flüssigen Phase 30 ausbildet. Die flüssige Phase 30 ist über den stromab vom Phasenseparator 26 gelegenen Abschnitt der Zuführleitung 12 mit dem Unterkühler 6 strömungsverbunden, während über eine mit der Gasphase 29 strömungsverbundene Gasableitung 31 Gas aus der die Gasphase 29 abgeführt werden kann. Durch den Phasenseparator 26 wird, ähnlich wie durch den zweiten Unterkühler 21 in Vorrichtung 20, sichergestellt, dass unmittelbar stromauf zum Entspannungsventil 14 kein oder nur in geringfügigen Mengen gasförmiges Kühlmedium in der Zuleitung 12 vorhanden ist, wodurch Störungen in der Funktion des Entspannungsventils 14 vermieden werden; Gas phase 29 collects in the phase separator 26, while the left in the liquid state cooling medium in the phase separator 26 forms a liquid phase 30. The liquid phase 30 is fluidly connected to the subcooler 6 via the section of the supply line 12 located downstream of the phase separator 26, while gas can be removed from the gas phase 29 via a gas discharge line 31 connected to the gas phase 29. By means of the phase separator 26, similar to the second subcooler 21 in device 20, it is ensured that no or only slight amounts of gaseous cooling medium are present in the supply line 12 upstream of the expansion valve 14, thereby avoiding disturbances in the function of the expansion valve 14 ;

gleichzeitig kann er zur Vorkühlung des dem Unterkühler 6 zugeführten At the same time he can be supplied to the pre-cooling of the subcooler 6

Kühlmediums eingesetzt werden, indem die Gasphase 29 während des Betriebs auf einem geringeren Druck als der Druck am Boden des Vorratstanks 1 1 gehalten wird. Bezugszeichenliste Cooling medium can be used by the gas phase 29 is maintained during operation at a lower pressure than the pressure at the bottom of the storage tank 1 1. LIST OF REFERENCE NUMBERS

1 . Vorrichtung 1 . contraption

2. Kühlkreislauf 2. Cooling circuit

3. Vorlaufleitung3rd supply line

4. Rücklaufleitung4. return line

5. Pumpe 5. pump

6. Unterkühler  6. subcooler

7. Druckbehälter 7. Pressure vessel

8. Kühlbad 8th cooling bath

9. Kühlschlange 9. Cooling coil

10. -10. -

1 1 . Vorratstank 1 1. storage tank

12. Zuführleitung 12. Feed line

13. Luftverdampfer13. Air evaporator

14. Entspannungsventil14. Relaxation valve

15. Gasabzugsleitung15. Gas discharge line

16. Vakuumpumpe16. Vacuum pump

17. Verbindungsleitung17. Connecting line

18. Abzweigpunkt18. Branch point

19. Abzweigpunkt19. Branch point

20. Vorrichtung 20. Device

21 . Unterkühler  21. subcooler

22. Wärmetauscher 22. Heat exchanger

23. Kühlbad 23. Cooling bath

24. Entspannungsventil 24. Relaxation valve

25. Vorrichtung 25. Device

26. Phasenseparator 26th phase separator

27. Entspannungsventil27. Relaxation valve

28. Behälter 28. Container

29. Gasphase  29th gas phase

30. Flüssige Phase 30. Liquid phase

31 . Gasableitung 31. gas discharge

Claims

Patentansprüche claims 1 . Vorrichtung zum Kühlen eines Verbrauchers, mit einem dem Verbraucher zugeordneten Kühlkreislauf (2) zum Zirkulieren einer Kühlflüssigkeit, in dem eine Pumpe (5) sowie ein Unterkühler (6) vorgesehen ist, wobei der Unterkühler (6) einen über eine mit einem Entspannungsventil (14) ausgerüstete Zuführleitung (12) mit einem Vorratstank (1 1 ) für die Kühlflüssigkeit strömungsverbunden Behälter (7) zur Aufnahme eines Kühlbades (8), eine am Behälter (7) angeordnete Gasabzugsleitung (15) zum Abführen verdampfter Kühlflüssigkeit sowie einen beim 1 . Device for cooling a consumer, having a consumer associated cooling circuit (2) for circulating a cooling liquid in which a pump (5) and a subcooler (6) is provided, wherein the subcooler (6) via a with an expansion valve (14 ) equipped with a storage tank (1 1) for the coolant flow connected container (7) for receiving a cooling bath (8), a container (7) arranged gas discharge line (15) for discharging vaporized coolant and a at bestimmungsgemäßen Einsatz der Vorrichtung (1 , 20, 25) in das Kühlbad (8) eintauchenden und in den Kühlkreislauf (2) integrierten Wärmetauscher (9) aufweist, dadurch gekennzeichnet, Proper use of the device (1, 20, 25) in the cooling bath (8) immersed and in the cooling circuit (2) integrated heat exchanger (9), characterized dass vom Kühlkreislauf (2) eine beim bestimmungsgemäßen Einsatz der Vorrichtung (1 , 20, 35) strömungsoffene Verbindungsleitung (17) abzweigt, die mit dem that from the cooling circuit (2) branches off during normal use of the device (1, 20, 35) flow-open connection line (17), which with the Vorratstank (1 1 ) und/oder oder der zum Kühlbad (8) des Unterkühlers (6) führenden Zuführleitung (12) stromauf zum Entspannungsventil (14), strömungsverbunden ist. Storage tank (1 1) and / or or to the cooling bath (8) of the subcooler (6) leading feed line (12) upstream of the expansion valve (14), flow connected. 2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass in der 2. Apparatus according to claim 1, characterized in that in the Zuführleitung (12), zwischen der Ausmündung (18) der Verbindungsleitung (17) und dem Entspannungsventil (14), ein zweiter Unterkühler (21 ) angeordnet ist. Supply line (12), between the mouth (18) of the connecting line (17) and the expansion valve (14), a second subcooler (21) is arranged. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in der Zuführleitung (12), stromauf zum Entspannungsventil (14), ein Phasenabscheider (26) vorgesehen ist. 3. Apparatus according to claim 1 or 2, characterized in that in the supply line (12), upstream of the expansion valve (14), a phase separator (26) is provided. 4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch 4. Device according to one of the preceding claims, characterized gekennzeichnet, dass die Verbindungsleitung (17) stromab zum Verbraucher, jedoch stromauf zur Pumpe (5) in den Kühlkreislauf (2) einmündet. characterized in that the connecting line (17) opens downstream to the consumer, but upstream of the pump (5) in the cooling circuit (2). 5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch 5. Device according to one of the preceding claims, characterized gekennzeichnet, dass die Gasabzugsleitung (15) mit einer Vakuumpumpe (16) ausgerüstet ist. in that the gas discharge line (15) is equipped with a vacuum pump (16). 6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Vorratstank (1 1 ) mit einem Druckaufbauverdampfer (13) ausgerüstet ist. 6. Device according to one of the preceding claims, characterized in that the storage tank (1 1) is equipped with a pressure build-up evaporator (13). 7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch 7. Device according to one of the preceding claims, characterized gekennzeichnet, dass mittels einer Mess- und Regeleinrichtung die Temperatur des Kühlbades (8) in Abhängigkeit vom Wärmeeintrag im Kühlkreislauf (2) regelbar ist. characterized in that by means of a measuring and control device, the temperature of the cooling bath (8) in dependence on the heat input in the cooling circuit (2) is controllable. 8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch 8. Device according to one of the preceding claims, characterized gekennzeichnet, dass als Verbraucher ein supraleitendes Bauteil vorgesehen ist. in that a superconducting component is provided as the consumer.
EP14736664.5A 2013-07-04 2014-06-18 Device for cooling a consumer with a super-cooled liquid in a cooling circuit Active EP3017238B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14736664T PL3017238T3 (en) 2013-07-04 2014-06-18 Device for cooling a consumer with a super-cooled liquid in a cooling circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013011212.5A DE102013011212B4 (en) 2013-07-04 2013-07-04 Device for cooling a consumer with a supercooled liquid in a cooling circuit
PCT/EP2014/062881 WO2015000708A1 (en) 2013-07-04 2014-06-18 Device for cooling a consumer with a super-cooled liquid in a cooling circuit

Publications (2)

Publication Number Publication Date
EP3017238A1 true EP3017238A1 (en) 2016-05-11
EP3017238B1 EP3017238B1 (en) 2020-11-04

Family

ID=51162711

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14736664.5A Active EP3017238B1 (en) 2013-07-04 2014-06-18 Device for cooling a consumer with a super-cooled liquid in a cooling circuit

Country Status (14)

Country Link
US (1) US10422554B2 (en)
EP (1) EP3017238B1 (en)
JP (1) JP6349390B2 (en)
KR (1) KR102053387B1 (en)
CN (1) CN105324601B (en)
BR (1) BR112015033045B1 (en)
CA (1) CA2917035C (en)
DE (1) DE102013011212B4 (en)
ES (1) ES2842104T3 (en)
IL (1) IL243118B (en)
PL (1) PL3017238T3 (en)
RU (1) RU2648312C2 (en)
SG (1) SG11201509973RA (en)
WO (1) WO2015000708A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020043340A1 (en) 2018-08-30 2020-03-05 Messer Group Gmbh Device for cooling a superconducting element
WO2021245157A1 (en) 2020-06-06 2021-12-09 Messer Group Gmbh Method and device for cryogenic cooling of a consumer
DE102020007043A1 (en) 2020-11-18 2022-05-19 Messer Se & Co. Kgaa Device for transmitting electrical energy with a superconducting current carrier

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11913685B2 (en) 2014-08-19 2024-02-27 Supercritical Fluid Technologies, Inc. Cooling loop with a supercritical fluid system using compressed refrigerant fluid flow with a positive Joule Thomson coefficient
DE102016010752A1 (en) 2016-09-06 2018-03-08 Linde Aktiengesellschaft Method and device for cooling a component
EP3525902B1 (en) * 2016-10-14 2023-12-06 Supercritical Fluid Technologies, Inc. Open loop cooling system
CA3040469C (en) 2016-10-14 2021-11-16 Supercritical Fluid Technologies, Inc. Cooling loop with a supercritical fluid system using compressed refrigerant fluid flow with a positive joule-thomson coefficient
EP3361187A1 (en) * 2017-02-08 2018-08-15 Linde Aktiengesellschaft Method and device for cooling a consumer and system with corresponding device and consumers
DE102017002475A1 (en) 2017-03-14 2018-09-20 Linde Aktiengesellschaft Method and device for cooling a device with a current guide and system with corresponding device
DE102017003105A1 (en) 2017-03-30 2018-10-04 Linde Aktiengesellschaft Method and device for cooling a component
FR3066189B1 (en) * 2017-05-12 2022-01-21 Gaztransport Et Technigaz DEVICE AND METHOD FOR SUPPLYING FUEL TO AN ENERGY PRODUCTION PLANT
FR3067092B1 (en) * 2017-05-31 2020-08-14 L'air Liquide Sa Pour L'etude Et L'exploitation Des Procedes Georges Claude STATION AND METHOD FOR FILLING A PRESSURIZED GAS TANK (S)
DE102017008210B4 (en) * 2017-08-31 2020-01-16 Messer France S.A.S. Device and method for filling a mobile refrigerant tank with a cryogenic refrigerant
GB201719399D0 (en) * 2017-11-22 2018-01-03 Bennamann Services Ltd Liquid methane storage and fuel delivery system
UA126174U (en) * 2017-12-26 2018-06-11 Оу Юбісі Холдінг Груп BEVERAGE LINE COOLING SYSTEM
EP3511650B1 (en) 2018-01-12 2022-01-26 Linde GmbH Method and device for cooling a consumer and system with corresponding device and consumers
EP3511649B1 (en) 2018-01-12 2022-01-26 Linde GmbH Method and device for cooling a consumer and system with corresponding device and consumers
US12129973B2 (en) 2018-01-31 2024-10-29 Ihi Corporation Liquefied fluid supply system and liquefied fluid-spraying apparatus
KR102063526B1 (en) * 2018-06-07 2020-01-08 한국항공우주연구원 Apparatus and Method for producing supercooling cryogenic liquid.
KR102110522B1 (en) * 2018-06-25 2020-05-13 한국조선해양 주식회사 gas treatment system and offshore plant having the same
CN109579351A (en) * 2018-11-19 2019-04-05 中国人民解放军战略支援部队航天工程大学 Big flow liquid oxygen based on Supersonic Ejector crosses cooling method
US11946915B2 (en) 2019-01-04 2024-04-02 Supercritical Fluid Technologies, Inc. Interchangeable chromatography cartridgeadapter system
DE102019001497B3 (en) * 2019-03-02 2020-03-05 Messer Group Gmbh Method and device for separating a gas mixture containing diborane and hydrogen
FR3112589B1 (en) * 2020-07-17 2022-07-22 Gaztransport Et Technigaz Liquid natural gas loading system.
EP3943833B1 (en) 2020-07-23 2025-09-03 Linde GmbH Method for cooling a superconducting cable
US11476369B2 (en) 2020-10-28 2022-10-18 Semiconductor Components Industries, Llc SiC MOSFET with built-in Schottky diode
US11363741B2 (en) 2020-11-18 2022-06-14 VEIR, Inc. Systems and methods for cooling of superconducting power transmission lines
KR20230129009A (en) 2020-11-18 2023-09-05 베어, 인크. Suspended superconducting transmission lines
WO2022108820A1 (en) 2020-11-18 2022-05-27 VEIR, Inc. Conductor systems for suspended or underground transmission lines
AU2021383247A1 (en) * 2020-11-19 2023-06-22 Linde Gmbh Method and conveying device
RU2767668C1 (en) * 2021-06-22 2022-03-18 Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ Cryosystem of an aviation integrated electric power plant based on hts
MX2024009012A (en) * 2022-01-21 2024-07-31 Praxair Technology Inc Supplemental refrigeration using nitrogen.
CN114673936B (en) * 2022-03-17 2023-05-16 北京航天试验技术研究所 Liquid oxygen propellant full supercooling filling system and method based on three-stage sectional cooling
DE102023108620B4 (en) * 2023-04-04 2025-01-16 Messer Se & Co. Kgaa Device for cooling strip-shaped workpieces
KR20240170075A (en) * 2023-05-26 2024-12-03 국방과학연구소 Low pressure boiling cooling system

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE419633A (en) * 1936-02-18 1900-01-01
US2487863A (en) * 1946-07-01 1949-11-15 Phillips Petroleum Co Tank car unloading system
DE1068282B (en) * 1958-08-06 1959-11-05 Gesellschaft für Linde's Eismaschinen Aktiengesellschaft, Zweigniederlassung Hölllriiegelskreuth, Höllriegelskreuth bei München Cold insulation installation in large technical equipment for processes to be carried out at low temperatures
GB980266A (en) 1961-11-01 1965-01-13 Ici Ltd Improvements in and relating to the apparatus and methods for the filling of cylinders with liquefied gas
US3159008A (en) * 1963-04-08 1964-12-01 Chemical Construction Corp Cooling system
US3303660A (en) 1965-09-27 1967-02-14 Clyde H O Berg Process and apparatus for cryogenic storage
DE2929709A1 (en) * 1979-07-21 1981-02-12 Messer Griesheim Gmbh Supercooling of pressurised low-boiling liq. gases - to be delivered to metering device
GB8418841D0 (en) * 1984-07-24 1984-08-30 Boc Group Plc Refrigeration method and apparatus
US4843829A (en) * 1988-11-03 1989-07-04 Air Products And Chemicals, Inc. Reliquefaction of boil-off from liquefied natural gas
US5828712A (en) * 1992-01-13 1998-10-27 General Electric Company Coolant water flow rate test with rubidium nuclear tracer for reactors
US5324286A (en) * 1993-01-21 1994-06-28 Arthur A. Fowle, Inc. Entrained cryogenic droplet transfer method and cryosurgical instrument
FR2707371B1 (en) * 1993-07-08 1995-08-11 Air Liquide Installation for supplying gas under high pressure.
JP2815291B2 (en) * 1993-09-10 1998-10-27 日本エア・リキード株式会社 Piping equipment for low-temperature fluid
US5537828A (en) * 1995-07-06 1996-07-23 Praxair Technology, Inc. Cryogenic pump system
MY117068A (en) * 1998-10-23 2004-04-30 Exxon Production Research Co Reliquefaction of pressurized boil-off from pressurized liquid natural gas
RU2159911C1 (en) * 1999-06-04 2000-11-27 Военный инженерно-космический университет им. А.Ф. Можайского Self-contained system of nitrogen refrigeration for thermostatting of special transport facilities
RU2161290C1 (en) * 2000-03-16 2000-12-27 Государственное унитарное предприятие "Федеральный научно-производственный центр ГУП "ФНПЦ" "ПРИБОР" Liquid cooling device
DE10217092A1 (en) * 2002-04-17 2003-11-06 Linde Ag Cooling high-temperature superconductors
US6640552B1 (en) * 2002-09-26 2003-11-04 Praxair Technology, Inc. Cryogenic superconductor cooling system
US6732536B1 (en) * 2003-03-26 2004-05-11 Praxair Technology, Inc. Method for providing cooling to superconducting cable
US7810669B2 (en) * 2004-03-05 2010-10-12 Airbus Deutschland Gmbh Replaceable cartridge for liquid hydrogen
DE102004038460A1 (en) 2004-08-07 2006-03-16 Messer France S.A. Method and device for filling a container with liquid gas from a storage tank
US7263845B2 (en) * 2004-09-29 2007-09-04 The Boc Group, Inc. Backup cryogenic refrigeration system
JP2008027780A (en) * 2006-07-21 2008-02-07 Sumitomo Electric Ind Ltd Liquid refrigerant circulation cooling system
DE102007011530A1 (en) * 2007-03-09 2008-09-11 Bayerische Motoren Werke Aktiengesellschaft Method for filling a pressure accumulator provided for a cryogenic storage medium, in particular hydrogen
JP5014206B2 (en) * 2008-03-12 2012-08-29 大陽日酸株式会社 Superconducting member cooling method
US20090241558A1 (en) * 2008-03-31 2009-10-01 Jie Yuan Component cooling system
CN103262179B (en) * 2011-02-25 2016-08-31 株式会社前川制作所 superconducting cable cooling system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015000708A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020043340A1 (en) 2018-08-30 2020-03-05 Messer Group Gmbh Device for cooling a superconducting element
WO2021245157A1 (en) 2020-06-06 2021-12-09 Messer Group Gmbh Method and device for cryogenic cooling of a consumer
DE102020003424A1 (en) 2020-06-06 2021-12-09 Messer Group Gmbh Method and device for cryogenic cooling of a consumer
DE102020007043A1 (en) 2020-11-18 2022-05-19 Messer Se & Co. Kgaa Device for transmitting electrical energy with a superconducting current carrier
WO2022106131A1 (en) 2020-11-18 2022-05-27 Messer Group Gmbh Apparatus for transmitting electrical energy with a superconducting current carrier
US12488915B2 (en) 2020-11-18 2025-12-02 Messer Se & Co. Kgaa Apparatus for transmitting electrical energy with a superconducting current carrier

Also Published As

Publication number Publication date
DE102013011212B4 (en) 2015-07-30
BR112015033045A2 (en) 2017-07-25
EP3017238B1 (en) 2020-11-04
CA2917035A1 (en) 2015-01-08
US10422554B2 (en) 2019-09-24
DE102013011212A1 (en) 2015-01-08
ES2842104T3 (en) 2021-07-12
PL3017238T3 (en) 2021-04-19
WO2015000708A1 (en) 2015-01-08
JP6349390B2 (en) 2018-06-27
RU2648312C2 (en) 2018-03-23
CN105324601A (en) 2016-02-10
IL243118B (en) 2020-03-31
RU2015154453A3 (en) 2018-03-01
BR112015033045B1 (en) 2021-12-28
US20160370036A1 (en) 2016-12-22
SG11201509973RA (en) 2016-01-28
JP2016524117A (en) 2016-08-12
CN105324601B (en) 2017-02-08
KR20160030192A (en) 2016-03-16
RU2015154453A (en) 2017-08-07
KR102053387B1 (en) 2020-01-08
CA2917035C (en) 2021-04-06

Similar Documents

Publication Publication Date Title
DE102013011212B4 (en) Device for cooling a consumer with a supercooled liquid in a cooling circuit
EP2608223B1 (en) Method for cooling an assembly for superconductive cables
EP3488451B1 (en) Apparatus and method for super-cooled operation of a cryostat with low quantities of coolant
DE69528783T2 (en) Improvement in the thermal management system
DE10205130A1 (en) Process for the uninterrupted provision of liquid, supercooled carbon dioxide at constant pressure above 40 bar and supply system
DE112019005717T5 (en) FLUID BYPASS PROCESS AND SYSTEM FOR CONTROLLING THE TEMPERATURE OF A NON-PETROLEUM FUEL
DE102016104298A1 (en) Cooling device for a superconductor
DE102010028750B4 (en) Low-loss cryostat arrangement
EP3749903B1 (en) Method and device for cooling a superconducting current carrier
DE102022209941A1 (en) Device for transferring liquid helium, with reduced transfer losses
WO2020043340A1 (en) Device for cooling a superconducting element
WO2022106131A1 (en) Apparatus for transmitting electrical energy with a superconducting current carrier
WO2017148604A1 (en) Method for cooling a first cryogenic pressure vessel
EP1026461B1 (en) Method and device for cooling current supply
DE19645488C1 (en) Delivery system for gases e.g. hydrogen, nitrogen or natural gas from liquid phase in cryogenic tank
DE102015219983A1 (en) Cryogenic pressure vessel system
EP0849550B1 (en) Process for low temperature cooling of a load and liquefied gas refrigeration system for performing the process
DE19850911C2 (en) Liquid gas cooling system for cooling a consumer to low temperature
DE19645492C1 (en) System and method for maintaining or increasing pressure in a cryogenic tank
DE102012013300B4 (en) Device for subcooling low-boiling liquefied gases
DE102017007009A1 (en) Refrigeration system, coupled to the Regasifizierungseinrichtung a Liquified Natural Gas Terminal
DE102024133804B3 (en) Method and system for cooling fuel for a ship
DE102017217347A1 (en) Pressure vessel system and method for supplying fuel from a pressure vessel system
EP2515057B1 (en) Method and device for regulating the temperature of a fluid medium
DE102019122227B4 (en) Hydrogen system for a mobile unit and method for operating a hydrogen system, control program and computer-readable storage medium

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20160204

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17Q First examination report despatched

Effective date: 20160929

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200617

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1331291

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014014968

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210204

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210304

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210304

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210204

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2842104

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20210712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014014968

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20210805

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502014014968

Country of ref document: DE

Owner name: MESSER SE & CO. KGAA, DE

Free format text: FORMER OWNER: MESSER GROUP GMBH, 65843 SULZBACH, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210618

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210618

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210304

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140618

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20250328

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20250409

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250630

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20250401

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20250410

Year of fee payment: 12

Ref country code: IT

Payment date: 20250522

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20250409

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20250528

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20250703

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20250701

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201104