EP1078208B1 - Verfahren und vorrichtung zur kälteerzeugung - Google Patents
Verfahren und vorrichtung zur kälteerzeugung Download PDFInfo
- Publication number
- EP1078208B1 EP1078208B1 EP99924849A EP99924849A EP1078208B1 EP 1078208 B1 EP1078208 B1 EP 1078208B1 EP 99924849 A EP99924849 A EP 99924849A EP 99924849 A EP99924849 A EP 99924849A EP 1078208 B1 EP1078208 B1 EP 1078208B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerant
- oil
- heat exchanger
- joule
- cooled
- 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.)
- Expired - Lifetime
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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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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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
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
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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
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
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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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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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
- F25B9/006—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant containing more than one component
Definitions
- the invention relates to a method for cooling in the temperature range of 65 up to 150 K, where the refrigerant compresses with an oil-lubricated compressor is then cooled to ambient temperature and then oil is separated from the refrigerant before the refrigerant is a Joule-Thomson heat exchanger is fed.
- the invention further relates to a device for Refrigeration in the temperature range from 65 to 150 K, some. oil-lubricated Compressor for compressing a refrigerant, a downstream after cooler to cool the fuel to ambient temperature, one on it subsequent device for separating oil from the refrigerant and one of the Device for separating the oil downstream Joule-Thomson countercurrent heat exchanger having.
- refrigerants 320 K Mixtures of gases with normal boiling temperatures are often used as refrigerants 320 K used. These include, for example, hydrogen, nitrogen, oxygen, Noble gases, hydrocarbons and halogenated hydrocarbons. The one before described methods are when using such mixtures as Refrigerant referred to as the "mixture-Joule-Thomson method".
- an oil-lubricated compressor has the disadvantage that oil can get from the compressor into the refrigerant and can thus be carried into the refrigeration cycle. If the oil gets into the cold part of the refrigeration system, it freezes out at the low temperatures that occur in the evaporator and clogs the evaporator. Corresponding components must therefore be connected downstream of the compressor in order to separate oil from the refrigerant after it has been compressed. Due to the relatively high temperatures of the compressed refrigerant, both aerosols and vaporous oil components are usually present in the refrigerant. A liquid oil separator with oil return to the compressor and a downstream adsorber can advantageously be used as the cleaning unit to remove vaporous oil components and the finest droplets still remaining. This arrangement has been described (RC Longworth, MJ Boiarski, LA Klusmier, 80 K Closed Cycle Throttle Refrigerator, Proceedings of the 8th International Conference cryocooler, Vail Co., June 1994).
- An adsorber is a container filled with an adsorbent.
- an adsorbent serve solid substances, due to their properties other substances, in this case the oil, can bind.
- the adsorption process constitutes an attachment of molecules from the gaseous or liquid phase to the solid surface of the Adsorbent.
- Activated carbon and silica gel are the main adsorbents and zeolites (molecular sieves) are used.
- zeolites molecular sieves
- an adsorber is discontinuous.
- the adsorber is loaded, if the whole inner surface of the adsorbent from the foreign Molecules is occupied. Then the adsorber can no longer fulfill its function. Therefore, the adsorber is replaced at regular intervals or regenerated.
- the period between the exchange or regeneration of the Adsorbers adversely determines the maintenance-free period of the entire Käitemaschine.
- a normal maintenance period is in the range of 5000 to 10000 operating hours.
- Another disadvantage of the adsorber is the selectivity of the adsorbent in Relation to certain components of a refrigerant mixture, i.e. its Ability to adsorb different components differently (H. Jungnickel, R. Agsten, W.-E. Kraus, basics of refrigeration technology, Verlagtechnik GmbH, 1990, p. 309). As it flows through the adsorber, it shifts Composition of the mixture for this reason usually in favor of low-boiling components.
- thermodynamic effectiveness of the circuit of the refrigerant mixture important to use certain compositions of the refrigerant mixture.
- the main criterion for choosing the composition is the size and distribution of the Temperature difference between high and low pressure flow in the Joule-Thomson heat exchanger.
- the temperature difference should be as small as possible and the distribution the temperature difference in the heat exchanger should be as uniform as possible.
- Refrigerant mixtures that offer a particularly favorable temperature difference distribution in the heat exchanger are usually not gaseous before entering the Joule-Thomson heat exchanger, but are partially liquefied. This is achieved by adding higher boiling components such as propane or isobutane (A. Alexeev, H. Quack, Ch. Haberstroh, Low cost mixture Joule Thomson Refrigerator, Cryogenics, Proceedings of the 16 th International Cryogenic Engineering Conference, Kitakyushu , Japan, 1996).
- propane or isobutane A. Alexeev, H. Quack, Ch. Haberstroh, Low cost mixture Joule Thomson Refrigerator, Cryogenics, Proceedings of the 16 th International Cryogenic Engineering Conference, Kitakyushu , Japan, 1996.
- the higher-boiling mixture components usually also have a higher one Freezing temperature. At low temperatures in the cold part, these components can freeze out and clog the vaporizer. For this reason, the proportion of higher-boiling components in the refrigerant mixture should be as low as possible.
- the Advantages of using refrigerant mixtures are not fully exploited potential effectiveness is not achieved. That is another disadvantage of Mixture-Joule-Thomson method known in the prior art.
- the object of the invention is the effectiveness of the mixture Joule-Thomson process with oil-lubricated compressors.
- the efficiency the method and the device for refrigeration should be increased and the maintenance-free time of an optionally arranged adsorber and thus the Refrigeration device should be extended.
- the object is achieved in that the refrigerant after it Cooling down to ambient temperature and before entering the Joule-Thomson heat exchanger is additionally cooled.
- the device for the additional cooling is called an oil condenser here. Because surprisingly, the relatively small additional condense Cooling to a considerable extent advantageous further oil shares from the Refrigerant flow.
- the method is particularly advantageous for cooling in the temperature range suitable from 90 to 110 K.
- the refrigerant after it has cooled is cooled to ambient temperature and before oil separation.
- the refrigerant after Separation of the oil and before entering the Joule-Thomson heat exchanger is additionally cooled.
- the refrigerant flow advantageously cooled in a further heat exchanger (precooler), so that the Refrigerant is partially liquefied in the Joule-Thomson heat exchanger.
- precooler a further heat exchanger
- the Heat exchanger for cooling the high pressure flow under the Ambient temperature that means oil condenser and precooler, relate to them Cooling capacity advantageous from a refrigeration system.
- the additional cooling in the oil condenser can advantageously only be carried out with a liquid oil separator as Separation stage for the oil a technically meaningful purity of the refrigerant can be achieved.
- the refrigerant has before entering the Joule-Thomson heat exchanger a temperature of 233 to 243 K.
- the pressure of the refrigerant before entering the oil-lubricated compressor 1 to 3 bar preferably 1.5 to 2.5 bar and particularly preferably 1.6 to 1.8 bar
- the refrigerant after it Compression in the oil-lubricated compressor a pressure of 10 to 28 bar, preferably 12 to 18 bar and particularly preferably 14 to 16 bar
- the predominantly separate vaporous oil from the refrigerant after the predominant separation liquid oil from the refrigerant then the predominantly separate vaporous oil from the refrigerant.
- the separation takes place advantageous with a liquid oil separator and downstream adsorber, wherein in the liquid oil separator contained in the refrigerant flow Oil droplets are separated and the remaining refrigerant flow with now small amounts of vaporous oil are further cleaned in an adsorber.
- the oil vapors from the refrigerant gas condense relatively well after compression and are separated relatively well in the liquid oil separator.
- the Concentration of the residual oil in the gaseous refrigerant after Liquid oil separator is relatively small, which significantly relieves the pressure on the adsorber becomes.
- the proportion can be advantageous when using refrigerant mixtures of higher-boiling components can be reduced. Because even before entering The Joule-Thomson heat exchanger uses such refrigerant mixtures partially liquefied. This increases and increases the effectiveness of the system the risk of these components freezing out at low temperatures in the cold part the system significantly reduced.
- a mixture is used as the refrigerant which contains nitrogen, methane, propane and ethane or ethylene
- the mixture preferably contains 25 to 45 mol% nitrogen, 15 to 42 mol% Methane, 5 to 15 mol% propane, balance ethane or ethylene.
- the advantage is that the refrigerant mixture consists of relatively few components. components with normal boiling point at ambient temperature, for example isobutane not necessary anymore. The development of refrigerant mixtures and maintenance of the Refrigerant mixture is thus significantly simplified.
- the object is also achieved by a device for refrigeration, in which between the aftercooler and the Joule-Thomson countercurrent heat exchanger an oil condenser is arranged.
- the oil condenser is after the after cooler and before one Device for oil separation arranged.
- According to the invention is an adsorber after the device for oil separation and before the Joule-Thomson countercurrent heat exchanger.
- the invention is after the aftercooler and after the device for Oil separation arranged a precooler.
- the oil condenser and / or the precooler are integrated as evaporators in a separate refrigeration cycle.
- the device for oil separation or a heat exchanger is arranged after the adsorber and before the precooler is.
- the precooler acts as a three-flow heat exchanger is designed, through which the refrigerant flow from the Joule-Thomson heat exchanger and the flow of the cooling medium from the separate Refrigeration circuit in counterflow to the refrigerant flow from the device for Oil separation or the adsorber is performed.
- Fig. 1 is a device for performing a mixture throttle process shown. This process can be seen as a modified Joule-Thomson process become.
- the device consists of an oil-lubricated compressor 1, a Aftercooler 2, a Joule-Thomson heat exchanger 3, a throttle element 4, an evaporator 5, a liquid oil separator 6, a capillary line 8, an oil condenser 9, a precooler 10, a heat exchanger 17 and one Refrigeration system 11.
- the mixture compressed in the compressor 1 is in the aftercooler 2 to Ambient temperature cooled.
- the refrigerant is then in the Oil condenser 9 pre-cooled to below ambient temperature, the mixture remains gaseous.
- the subsequent separation of the oil from the refrigerant mixture takes place in two stages. First, oil droplets and oil aerosol are in the Liquid oil separator 6 separated.
- the separated oil in the Liquid oil separator 6 is returned to the compressor 1 through a capillary line 8 fed and the oil circuit closed.
- the high pressure flow after the Liquid oil separator 6 then flows through the heat exchanger 17.
- Vom Heat exchanger 17 preferably as a countercurrent heat exchanger is formed, the high pressure flow is the precooler 10 and then the Joule-Thomson heat exchanger 3 supplied.
- the refrigerant mixture is through cooled the precooler 10 so that the refrigerant mixture is partially liquefied.
- the high pressure flow is countercurrent in the Joule-Thomson heat exchanger 3 cooled to low pressure flow and finally in the throttle body 4 ins Relaxed two-phase area.
- the refrigerant mixture in the Evaporator 5 partially evaporated with absorption of cooling power. That from the Evaporator 5 coming refrigerant mixture is in the Joule-Thomson countercurrent heat exchanger 3 warmed up.
- This low pressure flow is over the Heat exchanger 17 fed to the compressor 1 again.
- the cold for that Oil condenser 9 and the precooler 10 is replaced by at least one additional one Refrigeration system 11 provided.
- the refrigeration system 11 preferably consists of a compressor 12, a Capacitor 13 and the throttle bodies 14 and 15.
- a further throttle element 16 is arranged in the line after the oil condenser 9 his.
- FIG. 2 shows a further development of the device for implementation shown in FIG. 1 of a mixture-throttle process.
- the precooler 10 after the Liquid oil separation in the liquid oil separator 6 is here as a three-flow heat exchanger designed by which the low pressure flow from the Joule-Thomson heat exchanger 3 and the pre-cooling medium from the refrigeration system 11 in Counter current flow to the high pressure flow and thereby the heat exchanger 17 here eliminated.
- the cycle is particularly efficient.
- the cold for the precooler 10 and Oil condenser 9 is generated in at least one refrigerator 11.
- the device according to FIG. 3 essentially corresponds to that shown in FIG. 1
- the device and the device according to FIG. 4 essentially agree with that in FIG. 2 shown device match, with an additional adsorber 7 between the Liquid oil separator 6 and the heat exchanger 17 or the three-flow heat exchanger is arranged as a precooler 10. With these devices the vaporous oil components in the adsorber 7 additionally from the refrigerant adsorbed.
- FIG. 5 An advantageous variant of the device is shown in FIG. 5. there the refrigerant after the aftercooler 2 is only cooled in the oil condenser 9 and the Oil separation in the liquid oil separator 6 is facilitated. After Oil separation, the oil vapors are adsorbed in an adsorber 7. The cleaned Refrigerant enters the Joule-Thomson heat exchanger 3 and is then according to a Joule-Thomson process according to the prior art treated. The cold for the oil condenser 9 is from a refrigerator 11 generated.
- the device shown in FIG. 6 has only one liquid oil separator 6 Separation of the oil from the refrigerant mixture. With this device no adsorber 7 required. The cold for the oil condenser 9 is in one Chiller 11 generated.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Lubricants (AREA)
- Compressor (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
- Fig.1:
- schematische Darstellung eines Gemisch-Joule-Thomson-Kälteapparates mit ölgeschmiertem Verdichter und Ölrückführung und mit zusätzlicher Kühlung des Hochdruckstromes,
- Fig.2:
- schematische Darstellung einer Variante des Gemisch-Joule-Thomson-Kälteapparates nach Fig. 1 mit ölgeschmiertem Verdichter und Ölrückführung mit zusätzlicher Kühlung des Hochdruckstromes.
- Fig. 3:
- schematische Darstellung eines Kälteapparates gemäß Fig. 1 mit zusätzlichem Adsorber,
- Fig. 4:
- schematische Darstellung eines Kälteapparates gemäß Fig. 2 mit zusätzlichem Adsorber,
- Fig. 5:
- schematische Darstellung eines Kälteapparates ohne Vorkühler, jedoch mit zusätzlichem Adsorber, und
- Fig. 6:
- schematische Darstellung einer Vorrichtung ohne Vorkühler und ohne Adsorber.
Claims (16)
- Verfahren zur Kälteerzeugung im Temperaturbereich von 65 bis 150 K, bei dem das Kältemittel mit einem ölgeschmierten Verdichter (1) verdichtet wird, anschließend auf Umgebungstemperatur abgekühlt wird und anschließend Öl aus dem Kältemittel abgetrennt wird, bevor das Kältemittel einem Joule-Thomson-Wärmeübertrager (3) zugeführt wird,
dadurch gekennzeichnet, daß das Kältemittel nach dessen Abkühlung auf Umgebungstemperatur und vor dem Eintritt in den Joule-Thomson-Wärmeübertrager (3) zusätzlich gekühlt wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß das Kältemittel nach dessen Abkühlung auf Umgebungstemperatur und vor der Ölabtrennung zusätzlich gekühlt wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß das Kältemittel nach der Abtrennung des Öls und vor dem Eintritt in den Joule-Thomson-Wärmeübertrager (3) zusätzlich gekühlt wird. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß das Kältemittel vor Eintritt in den Joule-Thomson-Wärmeübertrager (3) eine Temperatur von 233 bis 243 K aufweist. - Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß der Druck das Kältemittels vor Eintritt in den ölgeschmierten Verdichter (1) 1 bis 3 bar, vorzugsweise 1,5 bis 2,5 bar und besonders bevorzugt 1,6 bis 1,8 bar, beträgt und daß das Kältemittel nach dessen Verdichtung in dem ölgeschmierten Verdichter (1) einen Druck von 10 bis 28 bar, vorzugsweise 12 bis 18 bar und besonders bevorzugt 14 bis 16 bar, aufweist. - Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß nach der Abkühlung des Kältemittels auf Umgebungstemperatur überwiegend flüssige Ölanteile aus dem Kältemittel abgetrennt werden. - Verfahren nach Anspruch 6,
dadurch gekennzeichnet, daß nach der Abtrennung des überwiegend flüssigen Ölanteils aus dem Kältemittel anschließend der überwiegend dampfförmige Ölanteil aus dem Kältemittel abgetrennt wird. - Verfahren nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß als Kältemittel ein Gemisch enthaltend Stickstoff, Methan, Propan und Ethan oder Ethylen, eingesetzt wird. - Verfahren nach Anspruch 8,
dadurch gekennzeichnet, daß das Gemisch 25 bis 45 mol % Stickstoff, 15 bis 42 mol % Methan, 5 bis 25 mol % Propan, Rest Ethan oder Ethylen enthält. - Vorrichtung zur Kälteerzeugung im Temperaturbereich von 65 bis 150 K, die einen ölgeschmierten Verdichter (1) zur Verdichtung eines Kältemittels, einen nachgeschalteten Nachkühler (2) zur Abkühlung des Kältemittels auf Umgebungstemperatur, eine daran anschließende Vorrichtung zur Abtrennung von Öl aus dem Kältemittel und einen der Vorrichtung zur Abtrennung des Öls nachgeschalteten Joule-Thomson-Gegenstromwärmeüberträger-(3) aufweist,
dadurch gekennzeichnet, daß zwischen dem Nachkühler (2) und dem Joule-Thomson-Gegenstromwärmeübertrager (3) ein Ölkondensator (9) angeordnet ist. - Vorrichtung nach Anspruch 10,
dadurch gekennzeichnet, daß der Ölkondensator (9) nach dem Nachkühler (2) und vor einer Vorrichtung zur Ölabscheidung (6) angeordnet ist. - Vorrichtung nach Anspruch 11,
dadurch gekennzeichnet, daß ein Adsorber (7) nach der Vorrichtung zur Ölabscheidung (6) und vor dem Joule-Thomson-Gegenstromwärmeübertrager (3) angeordnet ist. - Vorrichtung nach einem der Ansprüche 10 bis 12,
dadurch gekennzeichnet, daß nach dem Nachkühler (2) und nach der Vorrichtung zur Ölabscheidung (6) ein Vorkühler (10) angeordnet ist. - Vorrichtung nach Anspruch 13,
dadurch gekennzeichnet, daß der Ölkondensator (9) und/oder der Vorkühler (10) als Verdampfer in einem separaten Kältekreislauf (11) eingebunden sind. - Vorrichtung nach Anspruch 13 oder 14,
dadurch gekennzeichnet, daß nach der Vorrichtung zur Ölabscheidung (6) oder nach dem Adsorber (7) und vor dem Vorkühler (10) ein Wärmeübertrager (17) angeordnet ist. - Vorrichtung nach Anspruch 15,
dadurch gekennzeichnet, daß der Vorkühler (10) als Dreistrom-Wärmeübertrager ausgelegt ist, durch welchen der Kältemittelstrom aus dem Joule-Thomson-Wärmeübertrager(3) und der Strom des Kühlmediums aus dem separaten Kältekreislauf (11) im Gegenstrom zum Kältemittelstrom aus der Vorrichtung zur Ölabscheidung (6) oder dem Adsorber (7) geführt wird.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19820961 | 1998-05-12 | ||
DE1998120961 DE19820961A1 (de) | 1998-05-12 | 1998-05-12 | Verfahren und Vorrichtung zur Kälteerzeugung |
DE19821308 | 1998-05-13 | ||
DE19821308A DE19821308A1 (de) | 1998-05-13 | 1998-05-13 | Verfahren und Vorrichtung zur Kälteerzeugung |
PCT/EP1999/002932 WO1999058905A1 (de) | 1998-05-12 | 1999-04-30 | Verfahren und vorrichtung zur kälteerzeugung |
Publications (2)
Publication Number | Publication Date |
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EP1078208A1 EP1078208A1 (de) | 2001-02-28 |
EP1078208B1 true EP1078208B1 (de) | 2002-04-17 |
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ID=26046099
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Application Number | Title | Priority Date | Filing Date |
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EP99924849A Expired - Lifetime EP1078208B1 (de) | 1998-05-12 | 1999-04-30 | Verfahren und vorrichtung zur kälteerzeugung |
Country Status (7)
Country | Link |
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US (1) | US6463744B1 (de) |
EP (1) | EP1078208B1 (de) |
JP (1) | JP2002514734A (de) |
AT (1) | ATE216481T1 (de) |
DE (1) | DE59901262D1 (de) |
PE (1) | PE20000391A1 (de) |
WO (1) | WO1999058905A1 (de) |
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WO2001092792A1 (en) * | 2000-05-30 | 2001-12-06 | Igc Polycold Systems Inc | A low temperature refrigeration system |
US6923009B2 (en) * | 2003-07-03 | 2005-08-02 | Ge Medical Systems Global Technology, Llc | Pre-cooler for reducing cryogen consumption |
WO2005005569A1 (en) * | 2003-07-15 | 2005-01-20 | Indian Institute Of Technology | A refrigerant composition for refrigeration systems |
US7603871B2 (en) * | 2006-06-29 | 2009-10-20 | Test Enterprises, Inc. | High-flow cold air chiller |
DE102008052494A1 (de) * | 2008-09-30 | 2010-04-08 | Institut für Luft- und Kältetechnik gGmbH | Joule-Thomson-Kühler |
DE102009039814A1 (de) * | 2009-09-02 | 2011-03-10 | Airbus Operations Gmbh | System und Verfahren zum Kühlen mindestens einer Wärme erzeugenden Einrichtung in einem Flugzeug |
CN101893354B (zh) * | 2010-07-01 | 2012-10-17 | 大连三洋压缩机有限公司 | 一种过冷油冷器和新型经济器螺杆机制冷循环系统 |
JP5656691B2 (ja) * | 2011-03-04 | 2015-01-21 | 三菱電機株式会社 | 冷凍装置 |
US9328943B2 (en) | 2011-07-22 | 2016-05-03 | Lockheed Martin Corporation | IDCA for fast cooldown and extended operating time |
JP5575191B2 (ja) * | 2012-08-06 | 2014-08-20 | 三菱電機株式会社 | 二元冷凍装置 |
US9999885B1 (en) | 2014-05-30 | 2018-06-19 | Lockheed Martin Corporation | Integrated functional and fluidic circuits in Joule-Thompson microcoolers |
EP3162870A1 (de) | 2015-10-27 | 2017-05-03 | Linde Aktiengesellschaft | Bei niedriger temperatur gemischtes kühlmittel für wasserstoffvorkühlung in grossem umfang |
FR3133075B1 (fr) * | 2022-02-25 | 2024-02-23 | Absolut System | Système de refroidissement cryogénique |
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EP0136342A4 (de) * | 1983-02-14 | 1985-07-01 | Gen Pneumatics Corp | Kryogenes kühlaggregat mit geschlossenem kreis. |
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JPH0760027B2 (ja) * | 1988-03-25 | 1995-06-28 | 三洋電機株式会社 | 冷凍装置 |
US5337572A (en) * | 1993-05-04 | 1994-08-16 | Apd Cryogenics, Inc. | Cryogenic refrigerator with single stage compressor |
US5441658A (en) * | 1993-11-09 | 1995-08-15 | Apd Cryogenics, Inc. | Cryogenic mixed gas refrigerant for operation within temperature ranges of 80°K- 100°K |
US5617739A (en) * | 1995-03-29 | 1997-04-08 | Mmr Technologies, Inc. | Self-cleaning low-temperature refrigeration system |
US5595065A (en) * | 1995-07-07 | 1997-01-21 | Apd Cryogenics | Closed cycle cryogenic refrigeration system with automatic variable flow area throttling device |
DE19648902C2 (de) * | 1996-11-26 | 1998-09-10 | Univ Dresden Tech | Verfahren zur Realisierung eines Gemisch- Joule- Thomson-Prozesses und Vorrichtung zur Durchführung dieses Verfahrens |
DE19747985A1 (de) * | 1997-10-30 | 1999-05-27 | Univ Dresden Tech | Verfahren zur Realisierung eines Gemisch-Joule-Thomson-Prozesses und Vorrichtung zur Durchführung des Verfahrens |
-
1999
- 1999-04-30 EP EP99924849A patent/EP1078208B1/de not_active Expired - Lifetime
- 1999-04-30 AT AT99924849T patent/ATE216481T1/de not_active IP Right Cessation
- 1999-04-30 US US09/674,948 patent/US6463744B1/en not_active Expired - Fee Related
- 1999-04-30 WO PCT/EP1999/002932 patent/WO1999058905A1/de active IP Right Grant
- 1999-04-30 JP JP2000548667A patent/JP2002514734A/ja active Pending
- 1999-04-30 DE DE59901262T patent/DE59901262D1/de not_active Expired - Lifetime
- 1999-05-07 PE PE1999000375A patent/PE20000391A1/es not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP1078208A1 (de) | 2001-02-28 |
JP2002514734A (ja) | 2002-05-21 |
ATE216481T1 (de) | 2002-05-15 |
WO1999058905A1 (de) | 1999-11-18 |
US6463744B1 (en) | 2002-10-15 |
DE59901262D1 (de) | 2002-05-23 |
PE20000391A1 (es) | 2000-05-24 |
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