EP2510292A1 - Procédé et dispositif de refroidissement/liquéfaction à basse température - Google Patents
Procédé et dispositif de refroidissement/liquéfaction à basse températureInfo
- Publication number
- EP2510292A1 EP2510292A1 EP10798163A EP10798163A EP2510292A1 EP 2510292 A1 EP2510292 A1 EP 2510292A1 EP 10798163 A EP10798163 A EP 10798163A EP 10798163 A EP10798163 A EP 10798163A EP 2510292 A1 EP2510292 A1 EP 2510292A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- working
- compression
- working fluid
- station
- 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
Links
Classifications
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- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
-
- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0244—Operation; Control and regulation; Instrumentation
- F25J1/0245—Different modes, i.e. 'runs', of operation; Process control
- F25J1/0249—Controlling refrigerant inventory, i.e. composition or quantity
- F25J1/025—Details related to the refrigerant production or treatment, e.g. make-up supply from feed gas itself
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- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
-
- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0005—Light or noble gases
- F25J1/001—Hydrogen
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
- F25J1/0062—Light or noble gases, mixtures thereof
- F25J1/0065—Helium
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
- F25J1/0275—Construction and layout of liquefaction equipments, e.g. valves, machines adapted for special use of the liquefaction unit, e.g. portable or transportable devices
- F25J1/0276—Laboratory or other miniature devices
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
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- 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
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
- F25B2500/221—Preventing leaks from developing
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0005—Light or noble gases
- F25J1/0007—Helium
-
- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/20—Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft
-
- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
- F25J2270/912—Liquefaction cycle of a low-boiling (feed) gas in a cryocooler, i.e. in a closed-loop refrigerator
Definitions
- the present invention relates to a method and a device for cooling / liquefying at low temperature.
- the invention may especially relate to a method and a liquefaction device and a method and a refrigeration device operating with helium.
- the invention relates more particularly to a process for the low temperature cooling / liquefaction of a working fluid, especially a working fluid comprising helium or pure helium, by means of a refrigerator / liquefier comprising a working circuit provided with a compression station and a cold box, the refrigerator / liquefier subjecting the working gas in the working circuit to a cycle comprising in series: a compression of the fl uid of work in the cooling station, cooling and expansion of the working fluid in the cold box and warming of the working fluid for its return to the compressor station, the compressor station comprising one or more compression stages each using one or more compressors mounted on bearings.
- Refrigerators or liquefiers operating at low temperature conventionally use a working fluid (for example helium) subjected to a work cycle comprising compression, expansion, cooling, reheating. These devices generally require several stages of compression of the working gas. Each compression stage uses one or more compressor wheels. For example compressors centrifugal type.
- the oil present in the compressor station mechanism must not pollute the working gas (by mixing with helium or by injection moisture and / or light hydrocarbons). Indeed, these impurities introduced into the working circuit may create plugs at cryogenic temperatures and break equipment.
- An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
- the process according to the invention which moreover conforms to the generic definition given in the preamble above, is essentially characterized in that the refrigerator comprises a device for injecting a barrier gas distinct from the working fluid at at least one bearing of the compressor (s) to form a gaseous barrier guiding the leakage of working fluid from the working circuit to a recycling zone and back into the working circuit.
- embodiments of the invention may include one or more of the following features:
- the device for injecting the barrier gas forms a gaseous barrier to prevent the leakage of working fluid from passing to at least one so-called polluted area of the compression station among: a mechanism of the compressor station comprising oil, a non-aerated zone with respect to the atmosphere,
- the barrier gas is injected at at least one bearing and at a pressure lower than the pressure of the working fluid in the working circuit at the compressor mounted on said bearing,
- the barrier gas contains nitrogen or consists of pure nitrogen
- the barrier gas injection device comprises at least one point of injection of the barrier gas and at least one outlet intended to collect the mixture comprising the injected barrier gas and the working fluid originating from the leak or leaks,
- the refrigerator / liquefier comprises a gas purification unit having a gas inlet to be purified and a purified gas outlet, the outlet of the purification unit being fluidly connected to the working circuit at the outlet of the station of compression, and at least a portion of the mixture of barrier gas and working fluid collected by the at least one outlet is reinjected at the inlet of the purification member for purification and reinjection in the circuit of work at the exit of the compressor station,
- the inlet of the purification unit is supplied with gas by a gas distinct from the working fluid of the circuit, that is to say that the working circuit is of the type
- At least a part of the mixture of barrier gas and working fluid collected by the at least one outlet is reinjected into the working circuit at the the inlet of the compression station and / or at an intermediate compression stage and / or at the level of the output of the compression station,
- the working cycle is said to be "closed” and comprises a gas purifying member having a gas inlet to be purified fed solely by working gas coming from the working circuit and a purified gas outlet which supplies the cold box,
- the refrigerator / liquefier comprises a gas purification member having a gas inlet to be purified and a purified gas outlet, the outlet of the purification member being fluidly connected to the work circuit at the station entrance. of compression, and (in that and that) at least a portion of the mixture of barrier gas and working fluid collected by the at least one outlet is reinjected at the inlet of the purification member for purification may be reinjected into the workflow at the entrance of the compressor station,
- the refrigerator / liquefier comprises a gas purification unit having a gas inlet to be purified and a purified gas outlet, the outlet of the purification unit being fluidly connected to the working circuit at an intermediate compression stage of the compressor station and / or at the outlet of the compressor station, and at least a portion of the mixture of barrier gas and working fluid collected by the at least one outlet is fed back to the inlet of the compressor station.
- purification unit for purification and reinjection into the working circuit in or out of the compressor station.
- the device comprises a purification member of the mixture for separating impurities from the working gas and in particular for removing the barrier gas from the mixture, the mixture being reinjected into the working circuit after a passage in the purification member.
- the purifying member comprises a separation system for removing impurities other than the working fluid, such as nitrogen from the gas,
- the purifying member optionally comprises a compression system for the purified or purified gas
- the compressor or compressors are of the centrifugal type
- the invention also relates to a low temperature cooling / liquefying device of a working fluid comprising helium or consisting of pure helium, the device comprising a working circuit provided with a compression station and a cold box, the working circuit subjecting the working gas to a cycle comprising in series: a compression of the working fluid in the compression station, a cooling and a relaxation of the working fluid in the cold box and a heating of the fluid of work for its return to the compression station, the compression station comprising one or more compression stages each using one or more compressors mounted on bearings, characterized in that the refrigerator comprises a device for injecting a compressor gas separate barrier of the working fluid at the level of at least one bearing of the compressor or compressors to form a gaseous barrier guiding the fluid leakage of tr avail from the working circuit to a recycling zone and back into the working circuit.
- the barrier gas injection device comprises at least one injection point of the barrier gas and at least one outlet intended to collect the mixture of injected barrier gas and of working fluid originating from the leak (s), and circuit comprises a pipe reinjecting said mixture into the working circuit at the inlet of the compression station and / or at an intermediate compression stage of the compression station and / or at the outlet of the compression station. compression station;
- the device comprises a purification member of the mixture for separating impurities from the working gas and in particular for removing the barrier gas from the mixture, the mixture being reinjected into the working circuit after a passage in the purification member.
- the invention may also relate to any alternative device or method comprising any combination of the above or below features.
- FIG. 1 represents a schematic and partial sectional view illustrating an example of a bearing-mounted compressor wheel comprising a device for collecting the leaks of the working gas according to the invention
- FIG. 2 represents a schematic and partial view illustrating the structure and operation of a first embodiment of a refrigeration and / or liquefaction device according to the invention
- FIG. 3 represents a schematic and partial view illustrating the structure and operation of a second exemplary embodiment of a refrigeration and / or liquefaction device according to the invention
- FIG. 4 represents a schematic and partial view illustrating the structure and operation of a third exemplary embodiment of a refrigeration and / or liquefaction device according to the invention
- FIG. 5 shows a schematic and partial view illustrating the structure and operation of a fourth embodiment of real isation of a refrigeration and / or liquefaction device according to the invention.
- the refrigerant / liquefier example shown in FIG. 2 conventionally comprises a compression station 2 and a cold box 3.
- the refrigerator / liquefier utilizes a low molecular weight working fluid, and preferably majority or pure helium gas.
- this helium can be produced from a source S of helium rich gas, for example from natural gas (or other) which is purified by a purification unit 1 so as to supply helium to a refrigerator / liquefier working loop.
- the purification unit or unit 1 contains, for example, a cryogenic gas separation system and / or two adsorbers arranged in parallel operating alternately in successive adsorption / regeneration cycles (of the PSA or TSA type, for example).
- the adsorbers are, for example, adsorbents of the activated carbon or silica-based type, for removing impurities such as air, nitrogen.
- the system forms an open loop with continuous impurity supply.
- the working gas is compressed at ambient temperature in the compression station 2 according to one or more compression stages 12 each using one or more compression machines, for example of the centrifugal compression type.
- the working gas arrives at a temperature close to ambient temperature at a so-called low LP pressure of, for example, between 1 and 3 bar abs.
- the working gas can then reach a so-called average pressure MP of, for example, between 3 and 8 bar abs.
- the working gas can then reach a so-called high pressure HP, for example between 9 and 27 bar abs.
- the compressed working gas is then admitted to a cold box 3 where it is cooled (or pre-cooled).
- the energy (heat) is extracted from the working gas by expansion in one or more cryogenic turbines and / or by thermal exchange with a cryogenic fluid such as nitrogen for example (the details of the cold box not shown for the sake of simplification ).
- the working fluid that has been thermally exchanged with a user can be returned to the inlet of the comissioning station 2 (possibly with progressive heating in exchangers).
- leakage of working gas occurs in particular at the bearings 5 of the shaft 25 of the compression wheels 12.
- one or more sealing devices are arranged around the shaft 25 at each bearing 5, to limit the leakage of working gas from the working circuit (sealing devices of the "labyrinth" type for example) .
- a barrier gas for example nitrogen
- a barrier gas is injected at the level of the bearings 5 and of the shaft 25, in particular to isolate the working circuit of the mechanical part containing the oil O (mechanism of gears and engine (s) of the compressor station). That is, the barrier gas is provided to guide the working gas leakage to an outlet 24.
- two N2 barrier gas injection points 14 may frame an exit path 24 for mixture comprising the injected barrier gas N2 and the working gas He collected. For example, only the barrier gas N2 passes into the part in contact with the oil O or the atmosphere.
- the pressure of the injected barrier gas is lower than the pressure of the working gas at the level of the compression wheel concerned. In this way, it avoids a pollution of the working circuit by the barrier gas.
- the barrier gas contains a significant amount of working gas (for example between 20 and 50 mol%).
- This mixture (He + N2) therefore leaves bearings at a relatively low pressure, for example between 1 and 7 bar abs depending on the compression stage concerned.
- FIG. 2 represents a first embodiment which may concern, for example, an industrial type liquefaction unit.
- the device comprises a gas purification member 1 having an inlet 1 1 of gas to be purified and an outlet 21 of purified gas.
- the outlet 21 of the purification member 1 is fluidly connected to the circuit working at the output of the compressor station 2 or lower level of the cycle depending on its temperature.
- the inlet 1 1 of the purification member 1 is fed with S gas from a source, for example a mixture of methane, nitrogen and helium. That is, the working gas of the working circuit is fed in open loop by less pure gas which undergoes purification treatment.
- a source for example a mixture of methane, nitrogen and helium.
- the mixture of barrier gas and working fluid collected by the outlets 24 described above is reinjected, via a line 13, to the inlet of the purification member 1 for purification and subsequent purification. reinjection into the working circuit at the exit of the compression station 2 or at the lower level of the cycle as a function of its temperature. That is to say that the barrier gas mixed with the working gas at the outlet 24 of the compressor system can be sent to the suction of the purification member 1, for example at the suction of a compressor forming part of the organ 1 purification. Indeed, this recovered mixture contains a level of nitrogen impurity which may be compatible with the operation of the purification member 1.
- the flow rate of the working gas is relatively low compared to the flow rate of the compressor of the purification unit.
- the level of tightness at each stage 12 of compression of the working gas is therefore not critical. Therefore, expensive sealing solutions can be avoided at the bearings to reduce overall costs.
- FIG. 3 shows a second embodiment which may relate, for example, to a refrigeration unit.
- elements identical to those described above are designated by the same reference numerals and are not described a second time.
- the device of FIG. 3 operates in this embodiment with a closed-loop work circuit (no supply of working gas via an external source).
- the mixture of barrier gas and working fluid collected by the outlets 24 is reinjected preferably directly at the inlet of the compression station 2 or of an intermediate stage of the compression station via a pipe 13.
- mixture (dam gas and working gas) recovered at the outputs 24 of the compressors 2 is therefore injected directly into the low pressure circuit of the corresponding stage or the compressor station.
- the circuit of work may optionally comprise a gas purification member 1 having an inlet 1 1 of gas to be purified supplied with working gas at the outlet of the compression station 2.
- the purified gas outlet 21 of the purification member 1 supplies the cold box 3.
- Fig. 4 shows a third embodiment which may relate, for example, to a refrigeration unit.
- the device operates in this embodiment with a closed-loop work circuit.
- the mixture of barrier gas and working fluid collected by the outlets 24 is re-injected into the inlet 21 for supplying gas to a gasification unit.
- the purification member 1 removes the impurities (removal of all or part of the barrier gas, for example via TSA or PSA nitrogen adsorbers in the case where the barrier gas is nitrogen) . That is, in this case, the mixture of dam gas (nitrogen) and working gas (helium) recovered leaves the compressors 12 at a pressure sufficient to be directly admitted into a conventional member 1. low pressure purification.
- the output 21 of the purified g of the purification member 1 is fluidly connected to the working circuit at the level of the inlet of the compression station 2. That is, the working fluid is returned to the working circuit after purification.
- Fig. 5 shows a fourth embodiment which may relate, for example, to a refrigeration unit.
- the device operates in this embodiment with a closed-loop work circuit.
- the mixture of barrier gas and working fluid collected by all or part of the outlets 24 is fed back into the inlet 21 for supplying gas to a gas purification member 1 via a compressor 6. that is to say that the mixture is compressed at a pressure sufficient to allow its purification at high or medium pressure (pressures for example between 3 and 27 bar abs).
- the purified and medium or high pressure working gas is re-injected at a level of an intermediate compression stage of the compression station 2 and / or at the outlet of the compression station 2.
- the invention is not limited to the embodiments described above.
- an intermediate device between the embodiments of FIGS. 4 and 5. That is to say that, when the mixture recovered has a relatively low pressure, for example between 1 and 3 bar. (pressure in the wheels of the first stage of compression), this The mixture can be compressed at medium pressure (between 3 and 9 bar) before being purified or reinjected directly into the circuit.
- the recovered mixture has an average pressure, for example between 3 and 15 bar (pressure in the wheels of an intermediate compression stage)
- this mixture can be sent to a medium pressure purifier 1. In this way, the size of the recovery compressor can be reduced.
- the usual internal adsorbers of the cold box 3 (to purify the working fluid) are preferably dimensioned accordingly.
- this mixture can be sent to a medium pressure purifier 1.
- the invention makes it possible to recover and recycle the working fluid that has been leaked.
- the invention makes it possible to control the pollution of the working gas with a barrier gas.
- the working gas polluted by the barrier gas is recovered and purified (in the cold box 3 and / or in an external purification member 1). This purification can be performed at medium pressure after compression (or after pressure increase compatible with the sealing system).
- the purified gas can be fed back into the circuit at the low pressure level and / or at the medium pressure and / or at the high pressure level.
- the invention may especially relate to any liquefaction or refrigeration unit (helium ring or noble gas) of large capacity.
- the invention may in particular also apply to a hydrogen liquefier using helium as the working gas.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL10798163T PL2510292T3 (pl) | 2009-12-11 | 2010-11-04 | Sposób i urządzenie do chłodzenia/skraplania w niskiej temperaturze |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0958859A FR2953913B1 (fr) | 2009-12-11 | 2009-12-11 | Procede et dispositif de refroidissement/liquefaction a basse temperature |
| PCT/FR2010/052363 WO2011070258A1 (fr) | 2009-12-11 | 2010-11-04 | Procédé et dispositif de refroidissement/liquéfaction à basse température |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2510292A1 true EP2510292A1 (fr) | 2012-10-17 |
| EP2510292B1 EP2510292B1 (fr) | 2013-09-25 |
Family
ID=42309540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10798163.1A Active EP2510292B1 (fr) | 2009-12-11 | 2010-11-04 | Procédé et dispositif de refroidissement/liquéfaction à basse température |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US10690406B2 (fr) |
| EP (1) | EP2510292B1 (fr) |
| JP (1) | JP5763091B2 (fr) |
| CN (1) | CN102652246B (fr) |
| DK (1) | DK2510292T3 (fr) |
| FR (1) | FR2953913B1 (fr) |
| PL (1) | PL2510292T3 (fr) |
| RU (1) | RU2540422C2 (fr) |
| WO (1) | WO2011070258A1 (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3013817B1 (fr) * | 2013-11-27 | 2018-11-09 | L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede et dispositif de refroidissement/liquefaction a basse temperature |
| FR3014543B1 (fr) * | 2013-12-06 | 2018-11-09 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Dispositif et procede de refroidissement et/ou de liquefaction a basse temperature |
| WO2016103479A1 (fr) | 2014-12-26 | 2016-06-30 | 三菱重工コンプレッサ株式会社 | Système de récupération de gaz pour compresseur, système de compresseur et système de cycle de réfrigération |
| JP6362292B2 (ja) * | 2015-04-27 | 2018-07-25 | 三菱重工コンプレッサ株式会社 | ガス回収システム、圧縮機システム及び冷凍サイクルシステム |
| JP6898180B2 (ja) * | 2017-08-31 | 2021-07-07 | 三菱重工業株式会社 | 軸封装置およびタービン発電システム |
| FR3087524B1 (fr) * | 2018-10-22 | 2020-12-11 | Air Liquide | Procede et une installation de liquefaction de gaz naturel |
| FR3087525B1 (fr) * | 2018-10-22 | 2020-12-11 | Air Liquide | Procede de liquefaction d'un courant gazeux d'evaporation issu du stockage d'un courant de gaz naturel liquefie |
| FR3140938B1 (fr) | 2022-10-17 | 2024-11-01 | Air Liquide | Procédé et appareil de récupération de gaz pour compresseur |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE758030A (fr) * | 1969-10-28 | 1971-04-26 | Philips Nv | Installation pour produire du froid aux temperatures inferieures a celles du point lambda de l'helium |
| FR2221982A5 (fr) * | 1973-03-14 | 1974-10-11 | Technip Etud Construction | |
| US3919854A (en) * | 1973-03-14 | 1975-11-18 | Technip Cie | Gas sealing assembly |
| US4495035A (en) * | 1981-03-06 | 1985-01-22 | Swearingen Judson S | Fluid handling method with improved purification |
| US4464908A (en) * | 1982-08-12 | 1984-08-14 | The United States Of America As Represented By The United States Department Of Energy | Solar-powered turbocompressor heat pump system |
| JPH079000Y2 (ja) * | 1988-02-23 | 1995-03-06 | 住友重機械工業株式会社 | 極低温冷凍装置 |
| JP2813212B2 (ja) * | 1989-10-27 | 1998-10-22 | 株式会社日立製作所 | 回転機械の回転軸支持機構 |
| JPH053885U (ja) * | 1991-06-24 | 1993-01-22 | 株式会社神戸製鋼所 | 冷凍装置 |
| US5347819A (en) * | 1992-11-05 | 1994-09-20 | Ishikawajima-Harima Heavy Industries, Co., Ltd. | Method and apparatus for manufacturing superfluidity helium |
| RU2072487C1 (ru) * | 1992-12-22 | 1997-01-27 | Конструкторское бюро нефтеаппаратуры | Способ охлаждения газа |
| JP3618886B2 (ja) * | 1996-03-01 | 2005-02-09 | 株式会社荏原製作所 | パルスチューブ冷凍機 |
| JP2000356425A (ja) * | 1999-06-16 | 2000-12-26 | Nippon Sanso Corp | 低温ガス発生装置および低温ガス発生方法 |
| FR2815399B1 (fr) * | 2000-10-18 | 2003-01-03 | Air Liquide | Procede et installation de purification et recyclage de l'helium, et leur application a la fabrication de fibres optiques |
| US6427483B1 (en) * | 2001-11-09 | 2002-08-06 | Praxair Technology, Inc. | Cryogenic industrial gas refrigeration system |
| JP2003172261A (ja) * | 2001-12-03 | 2003-06-20 | Teijin Seiki Co Ltd | 回転軸シール機構 |
| JP2004028018A (ja) * | 2002-06-27 | 2004-01-29 | Mitsubishi Heavy Ind Ltd | 圧縮機の無負荷試験装置及び試験方法 |
| JP2007509908A (ja) * | 2003-10-29 | 2007-04-19 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | メタノール又は炭化水素製品の輸送方法 |
| DE102005057986B4 (de) * | 2005-12-05 | 2010-06-17 | Vericold Technologies Gmbh | Heliumkompressoreinheit für Kryo-Anwendungen |
-
2009
- 2009-12-11 FR FR0958859A patent/FR2953913B1/fr not_active Expired - Fee Related
-
2010
- 2010-11-04 PL PL10798163T patent/PL2510292T3/pl unknown
- 2010-11-04 RU RU2012129162/06A patent/RU2540422C2/ru active
- 2010-11-04 DK DK10798163.1T patent/DK2510292T3/da active
- 2010-11-04 US US13/515,117 patent/US10690406B2/en active Active
- 2010-11-04 JP JP2012542594A patent/JP5763091B2/ja active Active
- 2010-11-04 CN CN201080055717.6A patent/CN102652246B/zh active Active
- 2010-11-04 EP EP10798163.1A patent/EP2510292B1/fr active Active
- 2010-11-04 WO PCT/FR2010/052363 patent/WO2011070258A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
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| See references of WO2011070258A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102652246B (zh) | 2015-05-06 |
| JP5763091B2 (ja) | 2015-08-12 |
| JP2013513776A (ja) | 2013-04-22 |
| CN102652246A (zh) | 2012-08-29 |
| PL2510292T3 (pl) | 2014-03-31 |
| FR2953913A1 (fr) | 2011-06-17 |
| RU2012129162A (ru) | 2014-01-20 |
| DK2510292T3 (da) | 2013-12-16 |
| US10690406B2 (en) | 2020-06-23 |
| WO2011070258A1 (fr) | 2011-06-16 |
| RU2540422C2 (ru) | 2015-02-10 |
| FR2953913B1 (fr) | 2012-01-13 |
| EP2510292B1 (fr) | 2013-09-25 |
| US20120279239A1 (en) | 2012-11-08 |
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