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EP2005057B1 - Procede de remplissage d'au moins un recipient a gaz sous pression par au moins un gaz - Google Patents

Procede de remplissage d'au moins un recipient a gaz sous pression par au moins un gaz Download PDF

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Publication number
EP2005057B1
EP2005057B1 EP07723913.5A EP07723913A EP2005057B1 EP 2005057 B1 EP2005057 B1 EP 2005057B1 EP 07723913 A EP07723913 A EP 07723913A EP 2005057 B1 EP2005057 B1 EP 2005057B1
Authority
EP
European Patent Office
Prior art keywords
compressed gas
pressure
gas container
gas
filling
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.)
Active
Application number
EP07723913.5A
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German (de)
English (en)
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EP2005057A1 (fr
Inventor
Johann Pongraz
Ulrich Klebe
Randolf Kunkel
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to PL07723913T priority Critical patent/PL2005057T3/pl
Publication of EP2005057A1 publication Critical patent/EP2005057A1/fr
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Publication of EP2005057B1 publication Critical patent/EP2005057B1/fr
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    • 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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • 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
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • 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
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
    • 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
    • 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
    • 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
    • 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
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2223/035—High pressure (>10 bar)
    • 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
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • 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
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/041—Methods for emptying or filling vessel by vessel
    • 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
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • 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
    • F17C2250/043—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
    • 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
    • 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
    • F17C2265/02—Mixing fluids
    • F17C2265/025—Mixing fluids different fluids
    • 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
    • F17C2270/01—Applications for fluid transport or storage

Definitions

  • the subject matter of the present invention is a method for filling at least one pressurized gas container with at least one gas.
  • a suitable intermediate piece for connecting to an opening of a pressurized gas container and a corresponding compressed gas cylinder fitting are described. According to the invention, it is particularly possible to produce mixtures of gases whose conditions can be adjusted with high precision.
  • a method for mixing gases in which a reference gas container is filled in addition to the compressed gas container to be filled.
  • the reference gas container has one or more additional holes in the shell of the gas cylinder, can be introduced by the probe into the reference pressure gas container. Based on the measured values of these sensors, the filling is controlled accordingly.
  • the compressed gas container to be filled and the reference compressed gas container are in fluid communication and are filled parallel to each other, so that in the reference pressure gas container substantially the same conditions as in the pressurized gas container to be filled.
  • reference compressed gas tank is a special reference compressed gas tank, which must be prepared by additional holes are introduced into the container and must take place for a safety review. This test must be carried out in particular for each individual reference compressed gas container. Under certain circumstances, such special reference compressed gas containers can not be pretreated together with the containers to be filled.
  • the object of the present invention is to provide a corresponding filling method in which a conventional compressed gas container can be used as the reference compressed gas container. Furthermore, a corresponding intermediate piece should be specified, which makes this possible.
  • the inventive method for filling at least one compressed gas container with at least one gas wherein a reference pressure gas container is formed, in which a measurement of at least one relevant for the state in the reference pressure gas container measured variable can be carried out, the compressed gas container and reference gas pressure vessel are at least partially in fluid communication, each compressed gas container and the reference compressed gas container each having an opening through which a gas is filled and removed, wherein in a filling at least one gas is filled through the opening in the at least one compressed gas container and at least temporarily in the reference pressure gas container, characterized in that a sensor is introduced through the opening in the reference compressed gas container and at least one measured variable is measured with this sensor at least during a part of the filling process.
  • the reference compressed gas container is characterized by the fact that it can use a conventional compressed gas container without additional holes as a reference pressure gas container and in particular exactly as the compressed gas container to be filled only has an opening through which gas is usually filled and removed.
  • the reference compressed gas container and the pressurized gas containers to be filled are compressed gas cylinders which, depending on the design, have pressures of, for example, 10 bar. B. up to 200 bar or even 300 bar or more and how they are commercially available in different volumes. If there are two elements in a fluidic connection, this means that a gas can flow from one element to the other without being hindered by, for example, walls or the like.
  • a sensor is an active or passive sensor.
  • the active sensor has to be actively operated, for example supplied with power, or comprises electronic devices for evaluating the measurements, while the passive sensor merely provides a size which allows conclusions to be drawn about the measured variable to be measured.
  • a passive sensor is for example a thermoresistor or a photoresistor.
  • An active sensor is for example a so-called "lab on a chip", in which a complete analytical equipment is designed in miniature scale and on which the measurement results are removable.
  • the measuring sensor is a high-precision measuring sensor, in particular a high-precision pressure sensor.
  • a pressure sensor with an accuracy of ⁇ 0.5 to 0.1% is present here, in particular a low-pressure sensor with measuring ranges of 0 to 10 bar absolute, preferably 0 to 5 bar absolute, in particular 0 to 2 bar absolute. This can be used particularly advantageously for a high-precision metered addition of gas, in particular in the context of creating a gas mixture.
  • the last component preferably the gas component with the largest proportion of the total mixture, is preferably mixed gravimetrically, that is via a control of the filled-in weight. This can take place at pressures of up to 100 bar, preferably up to 200 bar, particularly preferably up to 300 bar. Let it be high-precision gas mixtures with an accuracy of 1 to 2% up to four times faster than usual gravimetric filling process.
  • the inventive method is particularly suitable for filling a plurality of compressed gas containers such as from two to twelve or even more compressed gas containers.
  • a plurality of compressed gas containers such as from two to twelve or even more compressed gas containers.
  • not only a single gas can be filled into the pressurized gas container, but also two or more gases or gas mixtures in succession.
  • high-precision mixtures of several gases can be produced.
  • the process according to the invention is suitable for producing mixtures of two or more gases in which one or more gases have only a very low partial pressure in the final mixture.
  • one component may have a partial pressure of only a few millibar, while the other component may have a pressure of 100 bar or more.
  • reference pressure vessels and pressurized gas containers to be filled have the same fluidic conductance values. This is the case, in particular, when the valve cross sections, including the tube cross sections of the supply lines, do not differ or only insignificantly differ from one another.
  • At least one measured variable is measured with the measuring probe at least during a part of the filling process.
  • the pressure in each compressed gas container is at the same time then, when all pressurized gas container to be filled are in fluid communication with the reference pressure gas container known. Due to the pressure, it is also possible to deduce the appropriate amount of gas based on the relevant gas state equation. If the reference compressed gas container and the pressurized gas container to be filled have identical volumes, the same amount of gas is present in both containers at the same pressure. In particular, at low pressures can be assumed here by an ideal gas, which follows the ideal gas law.
  • the measurement of the temperature in the reference pressure gas container allows even more accurate determinations of the amount of gas, in particular in conjunction with a pressure measurement, since due to the temperature, the corresponding gas state equations can be evaluated even more accurately.
  • the measurement of the chemical composition of a gas in the reference pressure gas container can continue to be used for checking the gas mixture to be adjusted and on the other hand also serve to determine impurities in the compressed gas tank and / or in the incoming gas.
  • the analysis of the chemical composition can be carried out by appropriate analytical sensors, for example by so-called "lab on a chip” devices.
  • the moisture content in the reference compressed gas container may be relevant, for example, when gases or gas mixtures are reacted which react with water.
  • the moisture content is relevant and critical when a gas comprising nitrogen monoxide is introduced into the compressed gas container (s).
  • a gas comprising nitrogen monoxide is introduced into the compressed gas container (s).
  • sampling from the reference compressed gas container is possible, with a small amount of gas being taken and analyzed externally. This may be for example a mass spectrometric, spectral analysis, FTIR, GC and NMR analysis or other analysis.
  • the senor is a capacitive pressure sensor.
  • Such capacitive pressure sensors measure the locally applied pressure by measuring the electrical capacitance of a capacitor.
  • These sensors for example, sold under the name Compact Capacitance Diaphragm Gauge by Pfeiffer or Alcatel, under the name Capacitron by Leybold and under the name Barocel 600-659 by BOC Edwards, allow high-precision measurement of the pressure at small pressures. Under a small pressure is here in particular a pressure below the atmospheric pressure or in the vicinity of the atmospheric pressure understood, for example in the range of 10 -3 mbar up to 10 bar.
  • Capacitive pressure sensors in particular also have the advantage that they can measure the pressure of a wide variety of gas types, that is, they operate independently of the type of gas. The measured value of such a capacitive pressure sensor is thus independent of the gas type, so that in particular without further corrections the measured values of the same pressure sensor can be used for filling with different types of gas.
  • the filling process is carried out in multiple stages.
  • a filling is understood in which at least one printing plateau is present.
  • a pressure plateau is understood here to be a situation in which the pressure is kept essentially constant for a certain period of time during the filling process.
  • Another example of a multi-stage filling process is a filling process in which first a certain partial pressure of a first gas component, for example nitrogen monoxide, and subsequently a partial pressure of a second gas component, for example nitrogen, in the compressed gas container is achieved.
  • a first gas component for example nitrogen monoxide
  • a partial pressure of a second gas component for example nitrogen
  • the filling process is performed at least temporarily as a function of the measured variable. Ie. that in a particularly advantageous manner the measured variable is used to control or regulate the filling process.
  • This may mean, for example, that a gas valve, which establishes a connection to a gas reservoir or closes it, is opened until a pressure sensor indicates a corresponding pressure and after reaching this pressure, the valve is closed.
  • a predetermined value that is, a corresponding inlet valve is closed when this temperature is reached and only then the valve is opened again, if another pressure to be specified is undershot.
  • the corresponding measured quantities can also be used to trigger warning functions. For example, if a moisture content above a threshold value is detected and a gas is filled, which reacts with water, a corresponding warning message is issued, for. B. be issued a warning signal.
  • an intermediate piece can be used, which serves for connection to an opening of a compressed gas container.
  • the intermediate piece comprises a first connection for connecting the intermediate piece to a compressed gas container, a second connection for connecting the intermediate piece to a valve head and records This is due to the fact that at least one measuring sensor is formed, which can be brought into fluid communication with the first connection at least.
  • a connection is here understood to mean a mechanical connection with which the intermediate piece can be connected to the respective element.
  • This may be, for example, a thread which can be connected to a component with, in particular, a pin or cone having a corresponding thread or else a pressurized gas container having a corresponding thread, as is customary in compressed gas cylinders.
  • a valve head is understood here to mean a unit which is usually used on compressed gas cylinders. This is a valve by means of which a corresponding valve body can be opened and closed and a pressure measuring unit, which indicates the pressure in the gas cylinder.
  • the valve head may further comprise a pressure reducer, by means of which the possibly quite high pressure present in the pressurized gas container is reduced to lower pressures, for example in the range of one or a few bars.
  • the valve head comprises a connection for a gas line, by means of which gas can be removed from the compressed gas container.
  • a valve head may be a compressed gas container valve.
  • At least one measuring sensor is designed such that it passes through the first connection.
  • the probe protrudes when connecting the intermediate piece with the compressed gas container in this and thus measures the measured variable in the interior of the compressed gas container.
  • a corresponding temperature measuring head for example in the form of a thermoresistor or a thermocouple, passes through the first connection and thus the temperature in the interior of the pressurized gas container can be determined when mounting the intermediate piece on a compressed gas container.
  • the intermediate piece allows, in particular, in a particularly advantageous manner, that the usual valve heads which are known for connecting to or removing gas from the compressed gas container, continue to use can be.
  • the intermediate piece also has the advantage that it is no longer necessary to form a reference compressed gas container which differs from conventional compressed gas containers but that a conventional compressed gas container, for example a compressed gas cylinder, can be used with the intermediate piece as a reference compressed gas container.
  • a conventional compressed gas container for example a compressed gas cylinder
  • the intermediate piece can be used with the intermediate piece as a reference compressed gas container.
  • no additional safety-related acceptance of the reference compressed gas tank must take place. Rather, the safety-related acceptance of the normal compressed gas container is sufficient anyway.
  • measurements at high pressures inside the reference gas container can be carried out in an advantageous manner.
  • a lance is formed which extends through the first connection.
  • a lance is understood here to mean an elongate, preferably metallic component. In the assembled state, the lance protrudes at least partially into the compressed gas container.
  • At least one of the measuring sensors is arranged on the lance, in particular in the region of the lance end.
  • a temperature-measuring sensor may be arranged on the lance.
  • a sensor for determining the temperature comprises in particular a thermocouple or a thermoresistor.
  • thermoresistor only the ohmic resistance of the thermoresistance is measured, which changes as a function of the temperature applied to the thermoresistor.
  • a thermocouple a voltage is applied to a thermal resistor and a flowing current is measured, and from this, the current resistance is determined. From this can then close on the temperature.
  • a sensor for determining a chemical composition may comprise a sensor for measuring the proportion of a specific component of gas. This may be, for example, a Nernst probe whose one electrode lies on a corresponding reference. Thus, the moisture content in the reference pressure gas container can be determined.
  • At least one transmission means is designed for transmitting at least one signal of a measuring sensor.
  • a transfer agent is in this context a means by which one can transfer data to a corresponding recipient.
  • the transmission can be done both wired and wireless.
  • the transmission means may be formed as a plug or coupling, to which a wire can be connected, via which the corresponding measured variable or signals generated by the sensor are transmitted to a corresponding evaluation unit, such as a measuring device or a control unit.
  • wireless transmission is also possible, preferably based on electromagnetic waves, particularly preferably based on electromagnetic waves in the radio-frequency or optical range.
  • a single measuring device can be used for monitoring a plurality of measuring sensors in different intermediate pieces, in which a central measuring device interacts with a multiplicity of measuring sensors.
  • This has the particular advantage that when damage to an intermediate piece only a fairly inexpensive element is replaced, while the comparatively expensive evaluation electronics is not housed in the intermediate piece and does not need to be replaced.
  • a thermocouple or a thermoresistor for measuring the temperature via a corresponding cable with a corresponding ohmmeter, voltmeter or a corresponding evaluation element can be connected.
  • the details and advantages disclosed in the context of this invention for the method according to the invention can be transferred and applied to the intermediate piece.
  • the described intermediate piece can be used advantageously in the context of the method according to the invention, in which the reference pressure gas container has such an intermediate piece.
  • Fig. 1 shows an embodiment of an intermediate piece 1 for connection to an opening of a compressed gas container comprising a first port 2 for connecting the intermediate piece with a compressed gas container, a second port 3 for connecting the intermediate piece with a valve head (not shown), wherein a sensor 4 for determining the temperature and a sensor 5 for determining the pressure are formed.
  • the first connection 2 comprises in particular a pin provided with an external thread, the thread of which communicates with the internal thread of a corresponding compressed gas cylinder.
  • the second connection 3 has, in particular, an internal thread, which substantially corresponds to the internal thread of a compressed gas cylinder, so that a conventional valve head can be connected to the second connection 3.
  • the first port 2 is connectable to a conventional compressed gas cylinder such that the first port 2 is screwed onto the corresponding internal thread, so that the sensor 4 for determining the temperature which extends through the first port 2, protrudes into the interior of the gas cylinder.
  • Other versions of the connections 2, 3 are possible.
  • the intermediate piece 1 on a transmission means 6.
  • the transmission means 6 is a plug by means of which the measuring sensor 4 for measuring the temperature and / or the measuring sensor 5 for determining the pressure can be connected to a corresponding measuring device (not shown).
  • the intermediate piece 1 can be used in any compressed gas cylinder, which can be used in the inventive method as a reference compressed gas container.
  • the intermediate piece 1 and in particular its lines 7 are formed so that they have the smallest possible volume. As a result, it can be ensured that the volume of the relevant reference compressed gas container changes only slightly, so that at most such measurement errors occur that are negligible in terms of their amount.
  • Fig. 2 shows a compressed gas container 8, which is filled according to the inventive method.
  • a reference pressure gas container 9 is formed.
  • Compressed gas container 8 and reference compressed gas container 9 are connected in parallel with a filling supply line 10.
  • the reference compressed gas container 9 is basically identical to the compressed gas container 8 is formed.
  • the compressed gas container 8 is provided with a conventional valve head 11.
  • the valve head 11 has two connections 12, by means of which the valve head 11 is connected to the compressed gas container 8 on the one hand and the filling line 10 on the other.
  • the valve head 11 comprises a valve 13, by means of which the compressed gas container 8 can be brought into fluidic connection to the filling line 10 or a sampling line, not shown here.
  • the reference pressure gas container 9 has an intermediate piece 1, which in Fig. 1 shown in detail and described above.
  • the second terminal 3 of the intermediate piece 1 is with connected to a corresponding valve head 11.
  • the measuring sensor 4 for determining the temperature is here attached to a lance 17 extending into the reference pressure gas container 9.
  • the measuring sensors 4, 5 it is possible to determine measured variables such as the temperature and the pressure present in the reference compressed gas container 9.
  • the inventive method is not limited to the mixture of two-component gas mixtures.
  • mixtures of any desired number of gas components can thus be produced.
  • the compressed gas container 8 and the reference compressed gas container 9 are evacuated via the filling line 10 until a predefinable maximum pressure or minimum pressure is reached.
  • the first gas component is added. This is preferably the gas component whose proportion in the final mixture is lower, ie, whose partial pressure in the final mixture is lower than that of the other component.
  • the filling takes place with the valves 13 open, so that the gas component can flow through the filling line 10 both into the compressed gas container 8 and into the reference compressed gas container 9.
  • the filling line 10 is closed when the pressure to be reached is displayed by means of the measuring sensor 5 for determining the pressure. Thereafter, the filling line 10 is connected to the other gas component or with a reservoir containing them.
  • the reference compressed gas container 9 it is possible to fill the first gas component up to a pressure of 150 mbar and subsequently to fill the second component up to a pressure of 150 bar or more.
  • the reference compressed gas container 9 it is also possible for the reference compressed gas container 9 to be connected to the filling line 10 during the entire filling process.
  • the compressed gas containers of the compressed gas container 8 and of the reference compressed gas container 9 are identical.
  • any compressed gas container can be used as a reference pressure gas container.
  • an embodiment of the intermediate piece 1 is possible, which fits on a plurality of compressed gas containers 9. This is due to the fact that there are a large number of different compressed gas containers 8 of different volumes, but all of which have an identical thread for connection to a corresponding valve head 11.
  • first port 2 communicates with such an internal thread, it is thus possible to use a single adapter for a plurality of different compressed gas containers in order to use these as a reference compressed gas container 9. It is particularly advantageous that probe 4, 5 or the lance 17, which extend through the first port 2 into the interior of the reference gas cylinder 9, as short as possible, since then an insert in small gas cylinders 8 is possible. This is not disadvantageous in particular if a pressure measurement is carried out in the low pressure range, since in the low pressure range most of the gases behave like ideal gases and no stratification effects or the like are to be expected.
  • the lance 17 may be formed in particular as a riser.
  • the measuring sensors 5 are connected to the interior of the reference compressed gas container 9 for determining the pressure via this lance 17, while an evacuation of the reference compressed gas container 9 does not take place via the lance 17, but next to the lance 17. This accelerates the evacuation operation of the reference compressed gas tank 9.
  • Fig. 3 schematically shows a filling level, which shows two reference compressed gas tank 9 different sizes.
  • the filling device also has a connection 14 for connecting a conventional compressed gas cylinder for filling.
  • valves 15 are formed, by means of which each individual reference compressed gas container 9 can be separated from the filling line 10 or can be fluidically connected to it. Furthermore, an inlet valve 16 is formed, with which the filling line 10 can be connected to a corresponding gas reservoir and / or a corresponding Evakuierü.
  • This embodiment has the particular advantage that can be filled without one of the reference gas pressure tank 9 exchange compressed gas tank 8 different sizes.
  • the inventive method advantageously allows the production of high-precision gas mixtures.
  • the intermediate piece 1 can be used in a particularly advantageous manner to form a reference pressure gas container 9 from a conventional compressed gas container 8 such as a compressed gas cylinder.
  • measuring sensors 4 for determining the temperature and measuring sensors 5 for determining the pressure and, in particular, capacitive pressure sensors have proved to be advantageous as measuring sensors.

Landscapes

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

Claims (5)

  1. Procédé de remplissage d'au moins un récipient de gaz sous pression (8) avec au moins un gaz, dans lequel on aménage un récipient de gaz sous pression de référence (9) dans lequel une mesure d'au moins une grandeur de mesure pertinente pour l'état dans le récipient de gaz sous pression de référence (9) peut se faire, dans lequel le récipient de gaz sous pression (8) et le récipient de gaz sous pression de référence (9) sont en communication fluidique technique au moins par moments, dans lequel chaque récipient de gaz sous pression (8) et le récipient de gaz sous pression de référence (9) présentent chacun une ouverture à travers laquelle un gaz peut être introduit et retiré, dans lequel, dans une opération de remplissage, au moins un gaz est introduit à travers l'ouverture dans le au moins un récipient de gaz sous pression (8) et au moins par moments dans le récipient de gaz sous pression de référence (9), caractérisé en ce qu'un capteur (4, 5) est inséré à travers l'ouverture dans le récipient de gaz sous pression de référence et au moins une grandeur de mesure est mesurée avec ce capteur au moins au cours d'une partie de l'opération de remplissage.
  2. Procédé selon la revendication 1, dans lequel la grandeur de mesure comprend au moins une des grandeurs suivantes :
    i) une pression dans le récipient de gaz sous pression de référence (9) ;
    ii) une température dans le récipient de gaz sous pression de référence (9) ;
    iii) une composition chimique d'un gaz dans le récipient de gaz sous pression de référence (9) ; et
    iv) une teneur en humidité dans le récipient de gaz sous pression de référence (9).
  3. Procédé selon la revendication 1 ou 2, dans lequel le capteur est un capteur de pression capacitif.
  4. Procédé selon l'une quelconque des revendications précédentes, dans lequel l'opération de remplissage se fait en plusieurs étapes.
  5. Procédé selon l'une quelconque des revendications précédentes, dans lequel l'opération de remplissage est réalisée au moins par moments en fonction de la grandeur de mesure.
EP07723913.5A 2006-04-07 2007-04-03 Procede de remplissage d'au moins un recipient a gaz sous pression par au moins un gaz Active EP2005057B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07723913T PL2005057T3 (pl) 2006-04-07 2007-04-03 Sposób napełniania co najmniej jednego zbiornika na sprężony gaz co najmniej jednym gazem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006016554A DE102006016554A1 (de) 2006-04-07 2006-04-07 Verfahren zum Befüllen mindestens eines Druckgasbehälters mit mindestens einem Gas, Zwischenstück zum Verbinden mit einer Öffnung eines Druckgasbehälters und Druckgasflaschenarmatur
PCT/EP2007/002972 WO2007115734A1 (fr) 2006-04-07 2007-04-03 Procede de remplissage d'au moins un recipient a gaz sous pression par au moins un gaz, piece intermediaire destinee a etre reliee a une ouverture d'un recipient a gaz sous pression et robinet pour bouteille a gaz sous pression

Publications (2)

Publication Number Publication Date
EP2005057A1 EP2005057A1 (fr) 2008-12-24
EP2005057B1 true EP2005057B1 (fr) 2018-10-17

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EP07723913.5A Active EP2005057B1 (fr) 2006-04-07 2007-04-03 Procede de remplissage d'au moins un recipient a gaz sous pression par au moins un gaz

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US (1) US20090277531A1 (fr)
EP (1) EP2005057B1 (fr)
JP (1) JP5237261B2 (fr)
CN (1) CN101454609B (fr)
DE (1) DE102006016554A1 (fr)
PL (1) PL2005057T3 (fr)
TN (1) TNSN08387A1 (fr)
WO (1) WO2007115734A1 (fr)

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CN106370224A (zh) * 2015-07-21 2017-02-01 昱晶能源科技股份有限公司 测试系统与其测试方法
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Also Published As

Publication number Publication date
EP2005057A1 (fr) 2008-12-24
JP2009532641A (ja) 2009-09-10
DE102006016554A1 (de) 2007-10-11
CN101454609A (zh) 2009-06-10
WO2007115734A1 (fr) 2007-10-18
TNSN08387A1 (en) 2010-04-14
PL2005057T3 (pl) 2019-04-30
US20090277531A1 (en) 2009-11-12
CN101454609B (zh) 2011-09-14
JP5237261B2 (ja) 2013-07-17

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