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WO2012177584A1 - Système et procédé de condensation cryogénique - Google Patents

Système et procédé de condensation cryogénique Download PDF

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Publication number
WO2012177584A1
WO2012177584A1 PCT/US2012/043051 US2012043051W WO2012177584A1 WO 2012177584 A1 WO2012177584 A1 WO 2012177584A1 US 2012043051 W US2012043051 W US 2012043051W WO 2012177584 A1 WO2012177584 A1 WO 2012177584A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
coils
condenser
gas
cryogen
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.)
Ceased
Application number
PCT/US2012/043051
Other languages
English (en)
Other versions
WO2012177584A9 (fr
Inventor
Alan T. Cheng
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.)
Praxair Technology Inc
Original Assignee
Praxair Technology Inc
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 Praxair Technology Inc filed Critical Praxair Technology Inc
Priority to EP12730744.5A priority Critical patent/EP2720767A1/fr
Priority to CN201280030443.4A priority patent/CN103619430B/zh
Publication of WO2012177584A1 publication Critical patent/WO2012177584A1/fr
Publication of WO2012177584A9 publication Critical patent/WO2012177584A9/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D7/00—Sublimation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • B01D5/0006—Coils or serpentines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/265—Drying gases or vapours by refrigeration (condensation)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D8/00—Cold traps; Cold baffles
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/10—Nitrogen

Definitions

  • the present invention relates to methods and systems for removing a condensable vapor, such as water vapor, from a gas, and more particularly, to a cryogenic condenser.
  • Freeze drying is a sublimation process that removes water from a product in the form of ice. Freeze drying is especially useful in the pharmaceutical industry to remove water from biological products because it preserves the integrity of the biological products.
  • freeze drying the water-containing or alcohol containing product is frozen and, under vacuum with the partial pressure of water vapor reduced below the triple point of water, the frozen water sublimes and the sublimated ice is removed from the dryer.
  • cryogenic condensing system and method for effectively removing a condensable vapor, such as water vapor, from a gas stream and which can operate efficiently and effectively at very low or cryogenic temperatures often seen during freeze drying cycles.
  • the cryogenic condensing system should be able to handle large thermal cycling in a freeze drying process without stress cracking caused by thermal expansion and contraction.
  • aspects of the invention relate to systems and methods for condensing or otherwise removing a condensable vapor from a gas stream, such as a gas stream used to effect a freeze drying process.
  • a gas stream such as a nitrogen gas stream containing condensable water vapor
  • a cryogenic condenser that includes two or more coils that carry a cryogen, such as liquid nitrogen or other similar material.
  • the coils may remove heat from the gas stream, causing the condensable vapor in the gas stream to condense into liquid and/or solid form.
  • the condensed vapor may be removed from the condenser, and the gas, now having a reduced amount of condensable vapor, exhausted.
  • the two or more coils of the condenser may have a substantially equal length from an inlet to an outlet. This feature may permit the coils to operate in removing condensable vapor in a more uniform way, e.g., the coils may operate at the same or similar rate in generating condensate, may carry similar amounts of cryogen, and/or have other similar operating characteristics that allow the condenser to operate more efficiently.
  • the coils may have uppermost portions that are located at a substantially equal height relative to each other. This arrangement may allow the coils to experience a same fluid pressure of cryogen carried in the coils, e.g., due to the force of gravity, in the coils, and thus the coils may have the same or similar cryogen flow rates. This may help the coils to operate in the same, or substantially the same, way with respect to condensate production.
  • cryogen flow in the coils may be independently controllable. Such an arrangement may permit the condenser to continue operation even if one coil fails or otherwise stops proper operation. For example, if a first coil begins to leak cryogen, the first coil may be shut down (such as by stopping cryogen supplied to the coil) while a second coil continues to operate.
  • a cryogenic condenser includes a housing defining an interior space with a gas inlet for introducing gas with a condensable vapor into the interior space and a gas outlet for exhausting gas.
  • First and second coil sets may be located in the interior space, with each of the coil sets including at least one coil having an inlet and an outlet and arranged to conduct a cryogen from the inlet to the outlet.
  • the coils may therefore be arranged to cool the condensable vapor in the interior space to condense the vapor into a liquid or solid form.
  • a cryogen supply including at least one valve may be arranged to independently control flow of cryogen in each of the coils and/or coil sets.
  • Coils of the first and second sets, or coils within at least one of the sets may have a substantially equal length from the inlet to the outlet, and/or may have uppermost portions that are located at a substantially equal height relative to each other.
  • the condenser housing may define a cylindrical space having a top and a bottom, and a first of the coil sets may be located above a second of the coil sets in the interior space.
  • the coils may be nested or be arranged side -by-side.
  • the housing may have the gas inlet arranged at a side of the cylindrical space and the gas outlet arranged at the top of the cylindrical space.
  • An inlet baffle may be arranged at the gas inlet to direct gas toward the bottom of the cylindrical shape, and/or other baffles may be provided, e.g., at the top or bottom of the cylindrical space, to direct gas flow in the interior space in a vertical direction.
  • each of the coil sets includes at least four coils that have a substantially equal length and that are arranged in a nested form.
  • the coils of each set may be provided with cryogen from a common conduit. Cryogen exhausted from the outlets of the coils may be removed from the condenser via a common cryogen outlet.
  • a method for removing condensate from a gas stream includes providing a gas with a condensable vapor into a condenser housing, providing a liquid cryogen into first and second coil sets in the condenser housing to cool the condensable vapor in the interior space to condense the vapor into a liquid or solid form in the condenser housing, and independently controlling a flow of liquid cryogen in the first and second coil sets.
  • Independent control of flow of cryogen for the coil sets may be performed by operating at least one valve for a first cryogen supply for the first coil set independently of operation at least one valve for a second cryogen supply for the second coil set.
  • the first and second coil sets may each include first and second coils, each having an inlet and an outlet and arranged to conduct a cryogen from the inlet to the outlet.
  • the first and second coils may be nested with the second coil being at least partially surrounded by the first coil, and the first and second coils each having a substantially equal length and/or an uppermost portion that are located at a substantially equal height.
  • Each of the first and second coil sets may include at least a third coil that is nested with the first and second coils, with the third coil having a substantially equal length as the first and second coils and/or an uppermost portion that is located at a substantially equal height at the uppermost portions of the first and second coils.
  • Liquid cryogen may be provided to the first, second and third coils of each coil set with liquid cryogen from a common conduit, and the first coil set may be positioned above the second coil set.
  • FIG. 1 is a perspective view of a cryogenic condenser in an illustrative embodiment
  • FIG. 2 shows an upper right side perspective view of an embodiment of a cryogenic condenser that is similar to that shown in FIG. 1 ;
  • FIG. 1 shows an illustrative embodiment of a cryogenic condenser 1 that incorporates one or more aspects of the invention.
  • the condenser 1 includes a housing 10 that defines an interior space that has a cylindrical shape.
  • the housing 10 may have any suitable shape, size or other arrangement, and may define an interior space having any suitable size or shape, such as a box shape, a spherical shape, etc.
  • the housing 10 includes a gas inlet 11 through which a gas having a condensable vapor (such as air or nitrogen gas including water vapor) may be introduced into the housing 10.
  • a gas having a condensable vapor such as air or nitrogen gas including water vapor
  • the gas inlet 11 is arranged at a side of the housing 10, but may be located at any suitable location or locations, such as the top, bottom, and/or side(s) of the housing 10.
  • the housing 10 also includes a gas outlet 12 through which gas may exit the housing 10, e.g., after having at least some condensable vapor removed.
  • the gas outlet 12 is arranged at the top of the housing 10, but may be arranged at the bottom, side(s) and/or the top, as desired. (Although portions of housing 10 are referred to as being a top, bottom, or side, these references are for convenience and do not necessarily require that the condenser 1 be used in any particular orientation.
  • condenser 1 may be used so that gas outlet 12 at the "top” is arranged at a position that is below, or at a same height, as gas inlet 11 , e.g., with housing 10 tilted so that both the gas flow at inlet 11 and outlet 12 are generally in a horizontal plane.
  • the condenser 1 includes first and second coil sets 13a, 13b (which may each include one or more coils) in the interior space of the housing that are arranged to cool the condensable vapor so as to condense the vapor into a liquid or solid form, e.g., for removal from the gas provided at the gas inlet 11.
  • first and second coil sets 13a, 13b may be arranged to cool the water vapor so as to cause the water vapor to condense into liquid or solid water (e.g., water droplets or ice).
  • the water may be removed, e.g., via a condensate outlet 14 (e.g., a pipe or opening in the housing 10) located at a bottom of housing 10.
  • a condensate outlet 14 e.g., a pipe or opening in the housing 10.
  • the ice or other solid may be removed from housing 10 in any suitable way, such as by scraping coils sets 13 to remove the solid, which is then removed by a conveyor belt, falling through a condensate outlet 14 opening in housing 10.
  • coil sets 13 may be heated (or the solid ice otherwise heated) to change the condensate to a liquid form or otherwise cause the solid to be removed from coil sets 13, which may then fall from coils sets 13 for removal.
  • one or more coils in the coil sets may have a length from an inlet to an outlet that is the same or substantially the same. That is, a length of a coil in the first coil set 13a may be equal or substantially equal to a length of a coil in the second coil set 13b, and/or a length of a coil in the first coil set 13a may be equal or substantially equal to a length of another coil in the first coil set 13a.
  • the length of a coil from the inlet to the outlet is the length of a region of the coil between the inlet and the outlet where the coil functions to remove heat from gas in the housing 10 to help cause condensation of the condensable vapor.
  • the coils may remove heat from the interior space at a same or similar rate, may produce condensate at a same or similar rate, may carry a same or similar amount of cryogen or other cooling substance, and/or have other similar operating characteristics. Having the coils (or at least some coils) in the housing 10 operate with the same or similar condensate forming characteristics, the condenser 1 may operate more efficiently and/or effectively. For example, equal length coils may carry a same volume and/or flow rate of cryogen, and thus share the same or similar cooling rate, condensate generation or other characteristics, helping to avoid one coil being colder or warmer (on average) than another. Avoiding such an imbalance may help avoid excessive ice production on one coil versus another, and/or undesirably low condensate production by one coil versus another.
  • one coil set such as the first coil set 13a
  • one or more coils in one coil set may have the same or substantially the same length as one or more coils in the other coil set (such as the second coil set 13b).
  • the coils may be stacked one on the other, e.g., as shown for the coil sets 13a, 13b in FIG. 1, may be nested one inside the other (as discussed in more detail below where one outer coil at least partially surrounds another inner coil), or have another suitable arrangement, such as side -by-side positioning.
  • the cryogen supply for the coil sets in a condenser may be individually controlled. Such an arrangement may permit the condenser to continue operation, albeit at a potentially lower output (e.g., a lower condensate output), if one of the coil sets fails or otherwise stops proper operation. For example, if the first coil set 13a in the FIG. 1 arrangement begins to leak cryogen, the first coil set 13a may be shut down (such as by stopping cryogen supplied to the coil set 13a) while the second coil set 13b continues to operate.
  • the condenser may be enabled to continue operation to complete a batch and repaired after processing of the batch of product is complete.
  • the first and second coil sets 13 a, 13b each have respective cryogen supply conduits 14a, 14b that are part of a cryogen supply.
  • the cryogen supply may also include valves 20a, 20b for each of the conduits 14a, 14b or other suitable arrangements for controlling the flow of cryogen to the coil sets 13a, 13b.
  • flow of cryogen to a coil set 13 may be controlled in other ways, such as by controlling operation of a pump, insertion of a plug or other stop in the conduit 14, and/or in other ways.
  • this aspect of the invention may be used with respect to coils in a set that are stacked as shown in FIG. 1, nested, arranged in a side -by-side fashion, and/or in other ways.
  • the condenser housing 10 includes the gas inlet 1 1 at a side of the housing arranged so that gas enters the housing 10 in a generally horizontal direction, and the gas outlet 12 is arranged at a top of the housing 10 so that gas exits the housing 10 in a generally vertical direction.
  • gas may enter the housing 10 of the condenser 1 in a direction that is generally transverse, e.g., perpendicular, to a direction in which gas exits the housing 10.
  • the condenser 1 may include an inlet baffle 15 arranged at the gas inlet 11 to direct gas toward the bottom of the housing 10, as well as potentially toward a side of the housing 10 opposite the gas inlet 11.
  • the inlet baffle 15 is arranged as a curved sheet, but may take any suitable form, including one or more flat plates, fins, conduits, etc.
  • the condenser 1 may also include one or more baffles 16 near a bottom of the housing 10, e.g., to generally direct gas flow upwards and toward the coil sets 13.
  • one baffle 16 is located between a bottom of the housing 10 and the second coil set 13b toward a side of the housing that is offset from the gas inlet 11.
  • baffles 17 may function to generally direct gas flow toward the gas outlet 12, and/or to inhibit flow of gas from the gas inlet 11 from "short circuiting" to the gas outlet 12.
  • a forward baffle 17a may be arranged to help prevent gas entering at the gas inlet 11 from traveling upwardly, along the inlet baffle 15 and directly to the gas outlet 12.
  • the baffles 17 may be arranged in other suitable ways, and using other suitably configured elements.
  • the condenser 1 shown includes a housing 10 (shown in dashed line to reveal the internal components of the condenser 1) with a generally cylindrical shape, a gas inlet 11 at a side of the housing 1 1, and a gas outlet 12 at a top of the housing.
  • a pair of coils sets 13a and 13b are also included, although in this embodiment each coil set 13 includes four coils that are nested.
  • the coils in each coil set 13 have a same or substantially same length, and have an uppermost portion that are at the same or substantially the same height, e.g., to help ensure similar cryogen flow rates in the coils.
  • the coil sets 13 are individually controllable, i.e., a supply or flow of cryogen in the coils of each set may be controlled independent of each other, e.g., by controlling flow in the supply conduits 14a, 14b for the coil sets 13a, 13b.
  • the coil sets 13 may be provided with individual cryogen outlets 18, if desired.
  • FIGS. 4 and 5 show a front view and a right side view (i.e., a view from a side opposite of the gas inlet 1 1) of the condenser 1.
  • the coils in each of the coil sets 13a, 13b have a different pitch, i.e., a different spacing between adjacent coil loops. That is, because the coils in each set 13 have a same length, the coils in the outer regions of the coil set 13 will have a greater pitch (larger distance between adjacent coils) than coils in the inner regions of the coil set 13.
  • Support structure 22 may be used to help support the weight of the coils, as well as maintain a desired radial and/or axial location of the coils relative to each other.
  • the support structure 22 may also allow the coils to expand (lengthen) and contract (shorten) in response to temperature changes or other causes.
  • the support structure 22 includes vertically oriented bars that are connected together by horizontal stays at upper and lower ends of the housing 10, but other arrangements are possible.
  • FIGs. 6 and 7 show cross sectional views along the lines 6-6 and 7-7 as shown in FIGs. 5 and 4, respectively.
  • the outermost coil 5 includes six total loops
  • the adjacent coil 4 has seven total loops.
  • the next coil 3 has eight total loops
  • the innermost coil 2 has eleven total loops.
  • the innermost coil 2 has two sets of coil loops - one inner set and one outer set.
  • the innermost coil 2 has a relatively small diameter as compared to the more outer coils, the innermost coil 2 is provided with inner and outer coil loops to provide coil 2 with the same length as the other coils in the coil set 13a.
  • the same coil length could be provided in other ways, such as by further reducing the pitch of coil loops in the coil 2.
  • cryogen supply conduits 14a, 14b provide cryogen to a respective supply manifold near a bottom of the respective coil set 13a, 13b.
  • the inlet of each coil in the set e.g., coils 2, 3, 4 and 5 of the coil set 13a
  • each coil 2, 3, 4, 5 extends upwardly to an uppermost portion (indicated generally at reference 19 in FIG. 6).
  • cryogen in the coils flows in a generally downward direction to an exhaust manifold near a bottom of the set 13 to which the outlet of the coils is connected.
  • the exhaust manifold is connected to the cryogen outlet 18 so that cryogen may exit the condenser 1 after flowing through the coils.
  • FIG. 8 shows a side view and FIG. 9 shows a top view of the first coil set 13a from the FIGs. 2-7 embodiment.
  • the coil sets 13 may be arranged differently from each other, in this embodiment, the coil sets 13a, 13b have substantially the same or identical arrangement. By arranging the coil sets 13a, 13b in the same way, the coils may perform in approximately the same way, e.g., have the same or similar condensate forming characteristics.
  • the cryogen supply conduit 14a is connected to the supply manifold 23 near a bottom of the coil set 13a.
  • the inlets of the coils 2, 3, 4, 5 are connected to the supply manifold 23 and extend upwardly to an uppermost portion (indicated generally at reference number 19) from which each of the coils begin to have a coil loop shape that spirals generally downwardly toward the bottom of the coil set 13a.
  • an uppermost portion indicated generally at reference number 19
  • two or more coils in a coil set may have uppermost portions that are located at a same height. By having these uppermost portions located at approximately a same height, the coils may experience a same fluid pressure, e.g., due to the force of gravity, in the coils, and thus tend to have similar cryogen flow rates.
  • the three outer coils 3, 4 and 5 all spiral downwardly from the uppermost portion (e.g., 19) and connect to the exhaust manifold 24 at the bottom of the coil set 13a.
  • the innermost coil 2 is somewhat different. As mentioned above, the innermost coil 2 has inner and outer coil loops. Although the innermost coil 2 spirals downwardly at the inner coil loop 2b (see FIG. 9) from the uppermost portion (e.g., at 19) to near the bottom of the coil set 13a, the coil 2 makes a turn (at reference 2c in FIG.
  • FIG. 10 shows a cross sectional view along the line 10-10 in FIG. 9 and provides a close-up view of the inlets of the coils 2, 3, 4, 5 extending from the supply manifold 23 upwardly to the top of the coil set 13a.
  • FIG. 1 1 shows a perspective view of the coil set 13a with the inner coils shaded more lightly and outer coils shaded more darkly.
  • the coils of the coil sets, the cryogen supply conduits, supply and exhaust manifolds and cryogen outlet may be made of any suitable material, such as a stainless steel tubing or other suitable material, e.g., that can withstand temperature gradients to be experienced using a liquid cryogen in the coils and a potentially significantly warmer gas environment around the coils.
  • other components of the condenser 1 may be made of stainless steel or other suitable material, e.g., to withstand the expected temperature variations, potentially corrosive environments (such as for use with a volatile vapor condensate that is highly corrosive to metals or other materials), and other operating conditions.
  • the coils in the embodiments described above have a helical shape with generally circularly shaped loops, other arrangements are possible.
  • the coils could have a helical configuration with loops having a square, rectangular, elliptical, triangular or other suitable shape, the coils could have a flat, spiral shape (e.g., where each coil is generally located in a single plane), a serpentine shape, or other suitable configurations.
  • the cryogen may be a liquid material, such as a liquid nitrogen, liquid carbon dioxide, liquid argon, liquid oxygen, liquid helium, liquid air or other suitable material, or may be a higher temperature liquid, gas or mixture of liquid and gas. Flow of cryogen in the coils may be controlled in any suitable way, and using any suitable control parameters.
  • the condenser 1 may include one or more sensors to detect temperature, gas flow rates, condensate production rates, condensable vapor concentration in the inlet gas, cryogen flow rates, cryogen supply and/or outlet temperatures, and/or other parameters at one or more locations.
  • a controller e.g., including a suitably programmed general purpose computer with suitable software or other operating instructions or other suitable electronic circuitry, one or more memories (including non-transient storage media that may store software and/or other operating instructions), valves, pumps, temperature sensors, pressure sensors, input/output interfaces (such as a visible display, keyboard, mouse or other pointing device, printer, speaker, etc.), communication buses or other links, switches, relays, triacs, or other components necessary to perform desired input/output or other functions) may use the condenser parameter information (which may include user input information) to control one or more aspects of the condenser operation, such as gas inlet flow rate, cryogen flow rate to one or more coils, condensate removal (e.g., operate a scraper to remove ice from one or more coils based on detected conditions), and so on.
  • the condenser parameter information which may include user input information

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Abstract

L'invention porte sur un procédé et un appareil qui permettent de condenser la vapeur contenue dans un gaz. Selon l'invention, on place un cryogène, tel que de l'azote liquide, dans un premier et dans un second ensemble bobine dans un logement de condensateur afin de refroidir la vapeur condensable contenue dans le logement et la condenser en une forme liquide ou solide. Les flux de cryogène dans le premier et dans le second ensemble bobine peuvent être régulés indépendamment l'un de l'autre, les bobines du premier et/ou du second ensemble bobine peuvent être de longueur sensiblement égale et/ou les bobines du premier et/ou second ensemble bobine peuvent comprendre des parties supérieures situées à des hauteurs sensiblement égales.
PCT/US2012/043051 2011-06-20 2012-06-19 Système et procédé de condensation cryogénique Ceased WO2012177584A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12730744.5A EP2720767A1 (fr) 2011-06-20 2012-06-19 Système et procédé de condensation cryogénique
CN201280030443.4A CN103619430B (zh) 2011-06-20 2012-06-19 用于低温冷凝的系统和方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161498869P 2011-06-20 2011-06-20
US61/498,869 2011-06-20

Publications (2)

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WO2012177584A1 true WO2012177584A1 (fr) 2012-12-27
WO2012177584A9 WO2012177584A9 (fr) 2013-11-28

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EP (1) EP2720767A1 (fr)
CN (1) CN103619430B (fr)
WO (1) WO2012177584A1 (fr)

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CN103619430B (zh) 2016-02-10
US20120318017A1 (en) 2012-12-20
CN103619430A (zh) 2014-03-05
WO2012177584A9 (fr) 2013-11-28

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