FR2412795A1 - Installation de production de froid ou de liquefaction de gaz - Google Patents
Installation de production de froid ou de liquefaction de gazInfo
- Publication number
- FR2412795A1 FR2412795A1 FR7832157A FR7832157A FR2412795A1 FR 2412795 A1 FR2412795 A1 FR 2412795A1 FR 7832157 A FR7832157 A FR 7832157A FR 7832157 A FR7832157 A FR 7832157A FR 2412795 A1 FR2412795 A1 FR 2412795A1
- Authority
- FR
- France
- Prior art keywords
- compressor
- gas
- suction
- liquefaction
- gas liquefaction
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 3
- 239000003507 refrigerant Substances 0.000 abstract 2
- 239000001307 helium Substances 0.000 abstract 1
- 229910052734 helium Inorganic materials 0.000 abstract 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/004—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by flash gas recovery
-
- 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
-
- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
- F25J1/0052—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
-
- 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
-
- 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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/001—Ejectors not being used as compression device
- F25B2341/0012—Ejectors with the cooled primary flow at high pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/001—Ejectors not being used as compression device
- F25B2341/0015—Ejectors not being used as compression device using two or more ejectors
-
- 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
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/60—Expansion by ejector or injector, e.g. "Gasstrahlpumpe", "venturi mixing", "jet pumps"
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/825—Apparatus per se, device per se, or process of making or operating same
- Y10S505/888—Refrigeration
- Y10S505/894—Cyclic cryogenic system, e.g. sterling, gifford-mcmahon
Landscapes
- 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)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
INSTALLATION DE PRODUCTION DE FROID OU DE LIQUEFACTION DE GAZ EN UN CIRCUIT COMPRENANT UN PREMIER COMPRESSEUR EN AVAL DUQUEL EST MONTE UN REFROIDISSEUR, UN DISPOSITIF REFRIGERANT DE LIQUEFACTION AU MOINS PARTIELLE DU GAZ ET DEUX RESERVOIRS EN SERIE DU GAZ LIQUEFIE, LA CHAMBRE REMPLIE DE GAZ DU PREMIER RESERVOIR QUI FAIT SUITE AU DISPOSITIF REFRIGERANT COMMUNIQUANT AVEC L'ASPIRATION DU PREMIER COMPRESSEUR ET LA CHAMBRE REMPLIE DE GAZ DU SECOND RESERVOIR COMMUNIQUANT AVEC L'ASPIRATION D'UN SECOND COMPRESSEUR DONT LE REFOULEMENT COMMUNIQUE AVEC L'ASPIRATION DU PREMIER COMPRESSEUR. LE SECOND COMPRESSEUR EST UN EJECTEUR21 DONT L'ADMISSION27 DU JET PROPULSEUR COMMUNIQUE AVEC LE REFOULEMENT DU PREMIER COMPRESSEUR1. APPLICATION, PAR EXEMPLE, A LA LIQUEFACTION D'HELIUM POUVANT ETRE UTILISE POUR UN ELECTRO-AIMANT A SUPRACONDUCTION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1597277A CH625609A5 (fr) | 1977-12-23 | 1977-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2412795A1 true FR2412795A1 (fr) | 1979-07-20 |
FR2412795B1 FR2412795B1 (fr) | 1984-09-14 |
Family
ID=4413460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7832157A Granted FR2412795A1 (fr) | 1977-12-23 | 1978-11-14 | Installation de production de froid ou de liquefaction de gaz |
Country Status (7)
Country | Link |
---|---|
US (1) | US4242885A (fr) |
JP (1) | JPS5489976A (fr) |
CH (1) | CH625609A5 (fr) |
DE (1) | DE2800742C2 (fr) |
FR (1) | FR2412795A1 (fr) |
GB (1) | GB2011058B (fr) |
NL (1) | NL7812000A (fr) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH644442A5 (de) * | 1980-04-29 | 1984-07-31 | Sulzer Ag | Vorrichtung zum erzeugen von kaelte. |
US4438633A (en) * | 1982-11-12 | 1984-03-27 | Hiser Leland L | Method and apparatus for using low grade thermal energy to improve efficiency of air conditioning and refrigeration systems |
NL8400990A (nl) * | 1984-03-29 | 1985-10-16 | Philips Nv | Werkwijze voor het vloeibaar maken van een gas en vloeibaarmakingsinstallatie voor het uitvoeren van de werkwijze. |
US4548053A (en) * | 1984-06-05 | 1985-10-22 | The United States Of America As Represented By The United States Department Of Energy | Combined cold compressor/ejector helium refrigerator |
GB8418841D0 (en) * | 1984-07-24 | 1984-08-30 | Boc Group Plc | Refrigeration method and apparatus |
GB8418840D0 (en) * | 1984-07-24 | 1984-08-30 | Boc Group Plc | Gas refrigeration |
IT1200592B (it) * | 1985-02-22 | 1989-01-27 | Erba Strumentazione | Metodo e dispositivo per regolare la temperatura di raffreddamento di una trappola per campioni in un'apparecchiatura di analisi gascromatografica |
US4680041A (en) * | 1985-12-30 | 1987-07-14 | Phillips Petroleum Company | Method for cooling normally gaseous material |
US4666481A (en) * | 1986-03-10 | 1987-05-19 | Union Carbide Corporation | Process for producing liquid helium |
US4840043A (en) * | 1986-05-16 | 1989-06-20 | Katsumi Sakitani | Cryogenic refrigerator |
US4951471A (en) * | 1986-05-16 | 1990-08-28 | Daikin Industries, Ltd. | Cryogenic refrigerator |
JPS63150576A (ja) * | 1986-12-16 | 1988-06-23 | 日本酸素株式会社 | 深冷ガス分離方法 |
KR930000852B1 (ko) * | 1987-07-31 | 1993-02-06 | 마쓰시다덴기산교 가부시기가이샤 | 히이트 펌프장치 |
DE3939296C3 (de) * | 1989-11-28 | 1996-02-08 | Electrolux Siegen Gmbh | Vorrichtung zum Entsorgen des Kältemittels von Absorptions-Kältesystemen |
US5024061A (en) * | 1989-12-12 | 1991-06-18 | Terrestrial Engineering Corporation | Recovery processing and storage unit |
US5271231A (en) * | 1992-08-10 | 1993-12-21 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and apparatus for gas liquefaction with plural work expansion of feed as refrigerant and air separation cycle embodying the same |
US5848532A (en) * | 1997-04-23 | 1998-12-15 | American Superconductor Corporation | Cooling system for superconducting magnet |
US6376943B1 (en) | 1998-08-26 | 2002-04-23 | American Superconductor Corporation | Superconductor rotor cooling system |
US6489701B1 (en) | 1999-10-12 | 2002-12-03 | American Superconductor Corporation | Superconducting rotating machines |
KR100662189B1 (ko) * | 2006-02-13 | 2006-12-27 | 두산중공업 주식회사 | 극저온 냉각장치용 냉매가스 재활용장치 |
US20090229291A1 (en) * | 2008-03-11 | 2009-09-17 | American Superconductor Corporation | Cooling System in a Rotating Reference Frame |
CN103069226B (zh) | 2010-07-23 | 2016-08-31 | 开利公司 | 喷射器型制冷循环及使用该循环的制冷装置 |
WO2012012501A2 (fr) | 2010-07-23 | 2012-01-26 | Carrier Corporation | Cycle d'éjecteur à haute efficacité |
DE102012005768A1 (de) * | 2012-03-23 | 2013-09-26 | Linde Aktiengesellschaft | Luftzerlegungsanlage mit gekühlter Supraleiterstruktur |
US20140202174A1 (en) * | 2013-01-24 | 2014-07-24 | Cryomech, Inc. | Closed Cycle 1 K Refrigeration System |
US10724771B2 (en) | 2015-05-12 | 2020-07-28 | Carrier Corporation | Ejector refrigeration circuit |
CN104930741A (zh) * | 2015-05-29 | 2015-09-23 | 浙江工业大学 | 具有过冷器的新型压缩辅助喷射制冷*** |
WO2017027010A1 (fr) * | 2015-08-11 | 2017-02-16 | Volvo Truck Corporation | Système de réservoir de carburant liquide sous pression et véhicule le comprenant |
CN107965940B (zh) * | 2017-10-20 | 2020-04-10 | 中国科学院理化技术研究所 | 超流氦低温*** |
DE102018130883A1 (de) | 2017-12-04 | 2019-06-06 | Montana Instruments Corporation | Analytische Instrumente, Verfahren und Komponenten |
US20190168175A1 (en) * | 2017-12-06 | 2019-06-06 | Larry Baxter | Solids-Producing Siphoning Exchanger |
US10731792B2 (en) * | 2018-10-01 | 2020-08-04 | Mark Cann | System and method for storage of cryogenic material |
AU2020311435B2 (en) * | 2019-07-10 | 2023-01-19 | Bechtel Energy, Inc. | Systems and methods for improving the efficiency of combined cascade and multicomponent refrigeration systems |
CN111912135B (zh) * | 2020-07-16 | 2021-10-15 | 南方海洋科学与工程广东省实验室(湛江) | 双级引射冷电联供混合循环*** |
US11956924B1 (en) | 2020-08-10 | 2024-04-09 | Montana Instruments Corporation | Quantum processing circuitry cooling systems and methods |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3094390A (en) * | 1958-07-09 | 1963-06-18 | Air Prod & Chem | Production and storage of converted hydrogen |
US3159008A (en) * | 1963-04-08 | 1964-12-01 | Chemical Construction Corp | Cooling system |
NL147249B (nl) * | 1964-12-19 | 1975-09-15 | Philips Nv | Inrichting voor het verwekken van koude en/of voor het vloeibaar maken van gassen. |
NL6607168A (fr) * | 1966-05-25 | 1967-11-27 | ||
NL147251B (nl) * | 1966-07-01 | 1975-09-15 | Philips Nv | Ejecteur, in het bijzonder geschikt voor een inrichting voor het verwekken van koude en/of voor het vloeibaar maken van gassen. |
NL6609176A (fr) * | 1966-07-01 | 1968-01-02 | ||
NL6609175A (fr) * | 1966-07-01 | 1968-01-02 | ||
NL148153B (nl) * | 1966-07-01 | 1975-12-15 | Philips Nv | Ejecteur in het bijzonder geschikt voor een inrichting voor het verwekken van koude en/of voor het vloeibaar maken van gassen. |
NL6710359A (fr) * | 1967-07-27 | 1969-01-29 | ||
JPS5511863B2 (fr) * | 1973-08-10 | 1980-03-28 |
-
1977
- 1977-12-23 CH CH1597277A patent/CH625609A5/de not_active IP Right Cessation
-
1978
- 1978-01-09 DE DE2800742A patent/DE2800742C2/de not_active Expired
- 1978-11-14 FR FR7832157A patent/FR2412795A1/fr active Granted
- 1978-12-08 NL NL7812000A patent/NL7812000A/xx not_active Application Discontinuation
- 1978-12-13 JP JP15406478A patent/JPS5489976A/ja active Pending
- 1978-12-14 GB GB7848483A patent/GB2011058B/en not_active Expired
- 1978-12-18 US US05/970,159 patent/US4242885A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4242885A (en) | 1981-01-06 |
DE2800742A1 (de) | 1979-06-28 |
CH625609A5 (fr) | 1981-09-30 |
NL7812000A (nl) | 1979-06-26 |
JPS5489976A (en) | 1979-07-17 |
FR2412795B1 (fr) | 1984-09-14 |
GB2011058A (en) | 1979-07-04 |
DE2800742C2 (de) | 1982-01-28 |
GB2011058B (en) | 1982-03-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2412795A1 (fr) | Installation de production de froid ou de liquefaction de gaz | |
RU94007122A (ru) | Способ хранения криогенной жидкости с устранением температурной стратификации и устройство для его осуществления | |
FR2359289A1 (fr) | Pompe a cryogene liquide | |
GB1473086A (fr) | ||
ES8507662A1 (es) | Dispositivo para refrigeracion de aceite de un compresor en una unidad de compresion. | |
FR2422055A1 (fr) | Reservoir de pression avec un indicateur de panne | |
FR2394040A1 (fr) | Dispositif d'alimentation pour cryostat | |
ES8609659A1 (es) | Recipiente para mezcla criogena liquida | |
MY122553A (en) | Refrigerating cycle | |
GB1493437A (en) | Sampling means for liquefied gases | |
GB1218453A (en) | Improvements in or relating to coolers for gases and vapours | |
JPS52101753A (en) | Refrigerating apparatus | |
ES435536A1 (es) | Perfeccionamientos en compresores de anillo liquido. | |
GB1045285A (en) | Combination fluid pulsation dampener and separator for removing liquid or other foreign matter from fluids | |
ATE39752T1 (de) | Kuehl- oder gefriersystem. | |
GB1209144A (en) | Improvements in or relating to apparatus for freezing liquid in pipes | |
FR2439881A1 (fr) | Procede et dispositif de demarrage d'une pompe a liquide cryogenique | |
JPS56167993A (en) | Natural gas feeding unit | |
GB1216765A (en) | Refrigeration system for refrigeration units | |
GB830703A (en) | Device for the controlled dispensation of a liquified gas from a pressurized container | |
GB1119488A (en) | Oil free refrigerant compressor | |
FR2637055A1 (fr) | Dispositif de refrigeration a gaz a preservation d'energie | |
KR830004574A (ko) | 냉동기용 모타-압축기 | |
GB704289A (en) | Pumping plant for liquefied gas | |
FR2414178A1 (fr) | Systeme de refrigeration utilisant un agent refrigerant gazeux sature a des fins de degivrage |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |