CN1122797C - Mixed work medium condensating, separating, throttling and deep cooling circular refrigeration system - Google Patents
Mixed work medium condensating, separating, throttling and deep cooling circular refrigeration system Download PDFInfo
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 116
- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 239000002516 radical scavenger Substances 0.000 claims abstract description 13
- 238000009833 condensation Methods 0.000 claims description 140
- 230000005494 condensation Effects 0.000 claims description 140
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- 238000005461 lubrication Methods 0.000 claims description 15
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract 2
- 230000008020 evaporation Effects 0.000 abstract 2
- 230000007613 environmental effect Effects 0.000 abstract 1
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- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 4
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- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 3
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
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- 230000006835 compression Effects 0.000 description 2
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Abstract
The present invention relates to a multiple mixed work medium condensing, separating, throttling and deep cooling circular refrigeration system which comprises a compressor module, a middle refrigeration module and an evaporation module, wherein the compressor module is composed of a compressor, a front cooler and a filtering oil scavenger; the middle refrigeration module is composed of multi-stage mixed work medium refrigeration submodules; each submodule comprises a condensing separator, a throttling element and a countercurrent heat exchanger; the evaporation module comprises a throttling element, an evaporator and a countercurrent heat exchanger; a refrigerator uses multiple high efficient mixed work mediums which do not boil together, and the refrigerator does not have environmental hazard and is driven by single compressor. The present invention has the advantages of simplicity, reliability, inner overlapping refrigeration of multiple mixed work mediums, reliable performance of the refrigerator and high refrigerating efficiency.
Description
Invention field
The present invention relates to the refrigeration machine in the Refrigeration ﹠ Cryogenic Technique field, particularly a kind of mixed work medium condensating, separating, throttling deep cooling circular refrigeration system.
Background technology
The j-t refrigerator of polynary low-temperature mixed working medium that grew up in recent years is made up of compressor, cooler, contra-flow heat exchanger, evaporimeter and restricting element, and it is simple in structure, and cost is low, and thermal efficiency ratio is higher.But make cold-producing medium owing to adopt polynary non-azeotropic working medium, the evaporator temperature slippage is bigger, and because a circulating with choke, the lubricating oil that refrigeration working medium is carried under one's arms enters the low-temperature end of refrigeration machine, cause the hot congested of the obstruction of restricting element and low-temperature end heat exchanger, evaporimeter easily, cause degradation defective under refrigerator operation instability and the passing refrigeration performance in time, often need this moment compressor is carried out complicated lubrication oil filtration separating treatment, this can increase the refrigeration machine manufacturing cost, and can reduce the reliability of refrigeration machine.
Except that an above-mentioned circulating with choke refrigeration machine, also has a kind of interior overlapping circularly cooling machine that utilizes mixed working fluid Kleemenko circulation, promptly in the GM Refrigerator Working flow process, be provided with one to several gas-liquid separators according to different warm areas and working medium kind, be used for separating high boiling component and the lubricating oil that high pressure mixing working medium has become liquid phase, return low pressure by corresponding throttling device then, provide refrigerating capacity at corresponding warm area, form a kind of interior superposition type circularly cooling machine, enter the working medium flow of next stage heat exchanger with minimizing, reduce low temperature backheat load.Compare with a circulating with choke refrigeration machine above-mentioned, should certain progress be arranged interior superposition type circularly cooling machine aspect reliability, but make its structure become complicated and be not suitable for midget plant, and because gas-liquid separation is based on balance each other flash separation under the isothermal and isobaric condition of characteristic of zeotrope, need to adopt certain mechanical separate mode that liquid phase separation in the high-pressure fluid of burble point is come out, and make it throttling and return low-pressure channel, it is that burble point is in the middle liquid phase composition that balances each other that the liquid that is separated this moment is formed, separating resulting is by the characteristic decision (the gas-liquid two-phase temperature of separating equates) that balances each other of burble point temperature and working medium, if adjacent component boiling point is more approaching in the working medium, have two kinds of problems, the one, high boiling component is separated thorough inadequately, still have more content and enter next stage, exactly middle warm area component is too much separated in addition, cause next stage efficient to reduce, cause the refrigeration machine overall efficiency to descend; Mechanical separate mode separative efficiency is lower simultaneously, the liquid that forms can not be separated fully.
Summary of the invention
The object of the invention is to overcome the scarce limit that above-mentioned two kinds of j-t refrigerators exist, simultaneously can further develop the advantage of above-mentioned two kinds of circularly cooling machines, propose a kind of novel mixed work medium condensating, separating, throttling deep cooling circular refrigeration system with greater efficiency, reliable, low vibration, low noise, high performance-price ratio, applied range.
The present invention is in traditional multicomponent mixture working medium throttling in the overlapping circularly cooling machine, adopt a kind of brand-new mixed working fluid fractional condensation separation method, replace the gas-liquid separation mode in traditional Kleemenko circulation (interior overlapping circulation), constitute a kind of brand-new mixed work medium condensating, separating, throttling deep cooling circular refrigeration system.Separate mode of the present invention is: adopt high-pressure fluid internal heat transfer mass transfer separate mode, utilizing low pressure to backflow provides the separation driving force, the condensing reflux of realization high-pressure fluid is distinguished the component of higher in the high-pressure fluid from coming out in higher temperatures, guarantee component that the liquid of separating comprises more boiling point simultaneously well below the conventional balanced flash separation, separate mode only relies on the gravity effect and need not external mechanical part or the design of special runner simultaneously.Concrete mask work process is as follows: in the fractional condensation separator, high-pressure fluid upwards flows and is subjected to the cooling of low-pressure side cold fluid, high-pressure mixture enters gas-liquid two-phase, corresponding the increasing of reduction liquid phase with temperature, liquid forms phegma under the gravity effect, dirty liquid constantly and uprising gas carry out quality, energy exchange, wherein higher boiling content increases in the liquid, high boiling component content reduces in the gas, final liquid enters separator bottom reservoir and returns low-pressure channel enter fractional condensation separator low-pressure inlet after throttling, the condensation high-pressure fluid provides power for fractional condensation separates.Separate mode is different with the conventional balanced flash separation like this, can high boiling component be separated than more completely, and separates back vapor-liquid temperature difference, and gas temperature is low than liquid.Therefore the fractional condensation separator can also be realized the effect of counterflow heat exchanger, according to this characteristic refrigeration machine flow process multiple concrete arrangement can be arranged.
Embodiment of the present invention are as follows:
Mixed work medium condensating, separating, throttling deep cooling circular refrigeration system provided by the invention, it is characterized in that: comprise compressor module CU, middle refrigeration module MU and evaporator module EVU, its connected mode is: the high-pressure inlet pipe of refrigeration module MU in the middle of the high-voltage tube outlet of compressor module CU connects, the low tension outlet pipe of refrigeration module MU in the middle of the low pressure inlet pipe of compressor module CU connects; The high-pressure outlet pipe of middle refrigeration module MU connects the high-pressure inlet pipe of evaporator module EVU, and the low pressure inlet pipe of middle refrigeration module MU links to each other with the low tension outlet pipe of evaporator module EVU;
Described compressor module CU is by compressor C1, cooler C21 before first, cooler C22 and lubrication oil filtration oil scavenger C3 and pipeline thereof are formed before second, its connected mode is: the high-pressure outlet pipe of compressor C1 connects the inlet tube of cooler C21 before first, the outlet of cooler C21 links to each other with the import of the second preceding cooler C22 and the import of lubrication oil filtration oil scavenger C3 simultaneously by a three-limb tube spare before first, high-pressure outlet by the compressor module CU of the export mixes of cooler C22 before second, the outlet of lubrication oil filtration oil scavenger C3 links to each other with a tee pipe fitting, the low pressure inlet of a connection compressor of two other interface of tee pipe fitting C1 remains the low-pressure inlet that interface is compressor module CU;
Refrigeration module MU is made up of 1-5 level multicomponent mixture work medium refrigeration submodule MUZi in the middle of described, concrete progression is by required cryogenic temperature and component of mixture decision, each grade multicomponent mixture work medium refrigeration submodule MUZi mainly comprises fractional condensation separator Mi_4 and restricting element Mi_5 and pipeline thereof, its connected mode is: the high-pressure outlet of previous stage module connects the high-pressure inlet A1 of fractional condensation separator Mi_4, the highly pressurised liquid outlet A3 of fractional condensation separator Mi_4 bottom connects restricting element Mi_5, the outlet of restricting element Mi_5 connects the low-pressure inlet B1 of fractional condensation separator Mi_4, the low-pressure inlet of fractional condensation separator Mi_4 is connected with the low tension outlet of next stage module simultaneously, the gases at high pressure outlet A2 of fractional condensation separator Mi_4 links to each other with the high pressure entry of next stage module, and the low tension outlet B2 of fractional condensation separator Mi_4 links to each other with previous stage module low-pressure inlet.
The structure of each grade multicomponent mixture working medium refrigeration submodule MUZi in the middle of described among the refrigeration module MU also can be: comprise fractional condensation separator Mi_4, restricting element Mi_5, preposition contra-flow heat exchanger Mi_1, middle contra-flow heat exchanger Mi_2 and rearmounted contra-flow heat exchanger Mi_3, its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of preposition contra-flow heat exchanger Mi_1, the high-pressure outlet of preposition contra-flow heat exchanger Mi_1 connects the high-pressure inlet A1 of fractional condensation separator Mi_4, the high pressure entry of contra-flow heat exchanger Mi_2 in the middle of the gases at high pressure outlet A2 of fractional condensation separator Mi_4 connects, the high-pressure outlet of middle contra-flow heat exchanger Mi_2 connects the high pressure entry of rearmounted contra-flow heat exchanger Mi_3, and the high-pressure outlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet A3 of fractional condensation separator Mi_4 links to each other with restricting element Mi_5; The low-pressure inlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with the low tension outlet of next stage module, the low tension outlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with a tee pipe fitting, two other interface of threeway, low-pressure inlet with middle contra-flow heat exchanger Mi_2 links to each other, remain an outlet that connects restricting element Mi_5, the low tension outlet of middle contra-flow heat exchanger Mi_2 connects the low-pressure inlet B1 of fractional condensation separator Mi_4, the low tension outlet B2 of fractional condensation separator Mi_4 connects the low-pressure inlet of preposition contra-flow heat exchanger Mi_1, and the low tension outlet of preposition contra-flow heat exchanger Mi_1 links to each other with the low-pressure inlet of previous stage module;
The structure of each grade multicomponent mixture working medium refrigeration submodule MUZi in the middle of described among the refrigeration module MU also can be: comprise fractional condensation separator Mi_4, restricting element Mi_5 and preposition contra-flow heat exchanger Mi_1, middle contra-flow heat exchanger Mi_2, its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of preposition contra-flow heat exchanger Mi_1, the high-pressure outlet of preposition contra-flow heat exchanger Mi_1 connects the high-pressure inlet A1 of fractional condensation separator Mi_4, the high pressure entry of contra-flow heat exchanger Mi_2 in the middle of the gases at high pressure outlet A2 of fractional condensation separator Mi_4 connects, the high-pressure outlet of middle contra-flow heat exchanger Mi_2 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet A3 of fractional condensation separator Mi_4 links to each other with restricting element Mi_5; The low-pressure inlet of middle contra-flow heat exchanger Mi_2 links to each other with a tee pipe fitting, two other interface of tee pipe fitting, low tension outlet with the next stage module links to each other, remain an outlet that connects restricting element Mi_5, the low tension outlet of middle contra-flow heat exchanger Mi_2 connects the low-pressure inlet B1 of fractional condensation separator Mi_4, the low tension outlet B2 of fractional condensation separator Mi_4 connects the low-pressure inlet of preposition contra-flow heat exchanger Mi_1, and the low tension outlet of preposition contra-flow heat exchanger Mi_1 links to each other with the low-pressure inlet of previous stage module;
The structure of each grade multicomponent mixture working medium refrigeration submodule MUZi in the middle of described among the refrigeration module MU also can be: comprise fractional condensation separator Mi_4, restricting element Mi_5 and preposition contra-flow heat exchanger Mi_1, rearmounted contra-flow heat exchanger Mi_3, its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of preposition contra-flow heat exchanger Mi_1, the high-pressure outlet of preposition contra-flow heat exchanger Mi_1 connects the high-pressure inlet A1 of fractional condensation separator Mi_4, the gases at high pressure outlet A2 of fractional condensation separator Mi_4 connects the high pressure entry of rearmounted contra-flow heat exchanger Mi_3, and the high-pressure outlet of contra-flow heat exchanger Mi_3 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet A3 of fractional condensation separator Mi_4 links to each other with restricting element Mi_5; The low-pressure inlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with next stage module low tension outlet, the low tension outlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with a tee pipe fitting, two other interface of threeway, low-pressure inlet B1 with fractional condensation separator Mi_4 links to each other, remain an outlet that connects restricting element Mi_5, the low tension outlet B2 of fractional condensation separator Mi_4 connects the low-pressure inlet of preposition contra-flow heat exchanger Mi_1, and the low tension outlet of preposition contra-flow heat exchanger Mi_1 links to each other with the low-pressure inlet of previous stage module;
The structure of each grade multicomponent mixture working medium refrigeration submodule MUZi in the middle of described among the refrigeration module MU also can be: comprise fractional condensation separator Mi_4, restricting element Mi_5 and middle contra-flow heat exchanger Mi_2, rearmounted contra-flow heat exchanger Mi_3, its connected mode is: the high-pressure outlet of previous stage module connects the high-pressure inlet A1 of fractional condensation separator Mi_4, the high pressure entry of contra-flow heat exchanger Mi_2 in the middle of the gases at high pressure outlet A2 of fractional condensation separator Mi_4 connects, the high-pressure outlet of middle contra-flow heat exchanger Mi_2 connects the high pressure entry of rearmounted contra-flow heat exchanger Mi_3, and the high-pressure outlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet A3 of fractional condensation separator Mi_4 links to each other with restricting element Mi_5; The low-pressure inlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with next stage module low tension outlet, the low tension outlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with a tee pipe fitting, two other interface of threeway, low-pressure inlet with middle contra-flow heat exchanger Mi_2 links to each other, remain an outlet that connects restricting element Mi_5, the low tension outlet of middle contra-flow heat exchanger Mi_2 connects the low-pressure inlet B1 of fractional condensation separator Mi_4, and the low tension outlet B2 of fractional condensation separator Mi_4 links to each other with the low-pressure inlet of previous stage module;
The structure of each grade multicomponent mixture working medium refrigeration submodule MUZi in the middle of described among the refrigeration module MU also can be: comprise fractional condensation separator Mi_4, restricting element Mi_5 and preposition contra-flow heat exchanger Mi_1, its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of preposition contra-flow heat exchanger Mi_1, the high-pressure outlet of preposition contra-flow heat exchanger Mi_1 connects the high-pressure inlet A1 of fractional condensation separator Mi_4, and the gases at high pressure outlet A2 of fractional condensation separator Mi_4 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet A3 of fractional condensation separator Mi_4 links to each other with restricting element Mi_5; The low-pressure inlet of fractional condensation separator Mi_4 links to each other with a tee pipe fitting, two other interface of threeway, the low tension outlet of a next stage module links to each other, remain an outlet that connects restricting element Mi_5, the low tension outlet B2 of fractional condensation separator Mi_4 connects the low-pressure inlet of preposition contra-flow heat exchanger Mi_1, and the low tension outlet of preposition contra-flow heat exchanger Mi_1 links to each other with the low-pressure inlet of previous stage module;
The structure of each grade multicomponent mixture working medium refrigeration submodule MUZi in the middle of described among the refrigeration module MU also can be: comprise fractional condensation separator Mi_4, restricting element Mi_5 and middle contra-flow heat exchanger Mi_2, its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry A1 of fractional condensation separator Mi_4, the high pressure entry of contra-flow heat exchanger Mi_2 in the middle of the gases at high pressure outlet A2 of fractional condensation separator Mi_4 connects, the high-pressure outlet of middle contra-flow heat exchanger Mi_2 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet A3 of fractional condensation separator Mi_4 links to each other with restricting element Mi_5; Middle contra-flow heat exchanger Mi_2 low-pressure inlet with link to each other with a tee pipe fitting, two other interface of threeway, low tension outlet with the next stage module links to each other, remain an outlet that connects restricting element Mi_5, the low tension outlet of middle contra-flow heat exchanger Mi_2 connects the low-pressure inlet B1 of fractional condensation separator Mi_4, and the low tension outlet B2 of fractional condensation separator Mi_4 links to each other with the low-pressure inlet of previous stage module;
The structure of each grade multicomponent mixture working medium refrigeration submodule MUZi in the middle of described among the refrigeration module MU also can be: comprise fractional condensation separator Mi_4, restricting element Mi_5 and rearmounted contra-flow heat exchanger Mi_3, its connected mode is: the previous stage high-pressure outlet connects the high pressure entry of fractional condensation separator Mi_4, the gases at high pressure outlet A2 of fractional condensation separator Mi_4 connects the high pressure entry of rearmounted contra-flow heat exchanger Mi_3, and the high-pressure outlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet A3 of fractional condensation separator Mi_4 links to each other with restricting element Mi_5; Rearmounted contra-flow heat exchanger Mi_3 low-pressure inlet links to each other with the low tension outlet of next stage module, rearmounted contra-flow heat exchanger Mi_3 low tension outlet links to each other with a tee pipe fitting, two other interface of threeway, low-pressure inlet B1 with fractional condensation separator Mi_4 links to each other, remain an outlet that connects restricting element Mi_5, the low tension outlet B2 of fractional condensation separator Mi_4 links to each other with the low-pressure inlet of previous stage module;
Described evaporator module EVU comprises restricting element E2 and evaporimeter E3 and heat exchanger E1, its connected mode is: the high-pressure outlet of previous stage module links to each other with the high pressure entry of heat exchanger E1, the high-pressure outlet of heat exchanger E1 links to each other with the high-pressure inlet of restricting element E2, the outlet of restricting element E2 connects the import of evaporimeter E3, the outlet of evaporimeter E3 connects the low pressure inlet of heat exchanger E1, and the low tension outlet of heat exchanger E1 links to each other with the low-pressure inlet of previous stage module;
The structure of described evaporator module EVU also can be: comprise restricting element E2 and evaporimeter E3 and pipeline thereof, its connected mode is: the high-pressure outlet of previous stage module links to each other with the high-pressure inlet of restricting element E2, restricting element E2 outlet connects the import of evaporimeter E3, and the outlet of evaporimeter E3 links to each other with the low-pressure inlet of previous stage module;
Multicomponent mixture work medium used in the present invention comprises inert gas, and/or the alkyl hydrocarbons of 1-5 carbon atom, and/or the fluoride of chloride atom not, and described inert gas is neon, nitrogen and argon gas, and its molar concentration is 0-30%; The molar concentration of the alkyl hydrocarbons of 1-5 carbon atom is 20-50%; The molar concentration of the fluoride of chloride atom is not 15-20%.
Mixed work medium condensating, separating, throttling deep cooling circular refrigeration system provided by the invention, its concrete workflow is: polynary hybrid refrigeration working medium is in compressor module compressor module CU, become the gas of HTHP after the compressed machine C1 compression, cooler C21 before entering, C22 is cooled to environment temperature, enter first mixed work medium for throttling refrigeration submodule MUZ_1, in the fractional condensation separator M1_4 of MUZ_1 module, the high boiling component that lubricating oil of carrying secretly in the mixture and part have become liquid phase is separated, after restricting element M1_5 throttling, produce refrigeration effect, after the throttling fluid with return low-pressure fluid and be mixed into low-pressure channel, for condensation separation provides power.The content of high boiling component tails off in the gas after the separation, further enters the next stage submodule after the cooling through the middle contra-flow heat exchanger M1_2 of this module, rearmounted contra-flow heat exchanger M1_3, wherein experiences same process, and high-pressure fluid is further cooled off.Step by step backward, in MUZ_n level mixed work medium for throttling refrigeration submodule, it serves as the main mixture that comprises less other gas componants with original mixture normal boiling point and minimum boiling point component that mixed working fluid has become a kind of more merely through former grades of separation cooling back residual gases, enter behind the afterbody in the level refrigeration submodule EVU, after contra-flow heat exchanger E1 further cools off, externally provide cold by entering evaporimeter E3 after the restricting element E2 throttling.The low-pressure fluid that is come out by evaporimeter converges the fluid that the front separating, throttling comes out step by step provides cold for the high pressure incoming flow, and self is rewarming gradually, returns compressor at last, finishes the one action process.
Advantage of the present invention: the present invention adopts the separate unit driven compressor, and is simple and reliable; Can accomplish the constituent element throttling in corresponding temperature from high to low from high to low of different boiling in the mixture owing to adopt fractional condensation to separate, really accomplish the inside cascade refrigeration of different boiling constituent element, and avoided the higher boiling constituent element to have solid phase to separate out at low temperatures, stop up restricting element, further strengthened the reliability of system; Guarantee that the liquid throttling reduces the throttling process loss; The higher constituent element returns the low pressure runner in the higher temperature throttling, thereby next stage heat exchanger heat exchange load is reduced, and thus, can reduce the higher boiling constituent element brings in low-temperature zone in the circulation flow losses and backheat loss; Because the higher boiling constituent element is got back to the low pressure runner in the throttling of higher temperature place, thereby the water equivalent proportioning that has changed the high-low pressure air-flow effectively improves effectiveness of regenerator, has reduced the backheat loss, makes refrigeration machine have higher efficient; Cyclic design is simple, and flow arrangement is flexible.
Description of drawings
Fig. 1 is a structural representation block diagram of the present invention;
Fig. 2 is the structural representation of compressor module compressor module CU;
Fig. 3 is the structural representation of a kind of multicomponent mixture working medium refrigeration submodule MUZi of structure;
Fig. 4 is the structural representation of evaporator module EVU;
The structural representation of the fractional condensation separator that is adopted in Fig. 5 embodiment of the invention 1,2,3;
Fig. 6 embodiments of the invention 1 structural representation;
Fig. 7 is embodiments of the invention 2 structural representations;
Fig. 8 is embodiments of the invention 3 structural representations;
Wherein: compressor module CU compressor C1
Cooler C21 lubricating oil separation oil scavenger C3 before first
Refrigeration submodule MUZi in the middle of the middle refrigeration module MU
Preposition contra-flow heat exchanger Mi_1 fractional condensation separator Mi_4
Level refrigeration module EVU behind the restricting element Mi_5
Restricting element E2 evaporimeter E3
Fractional condensation separator high-pressure fluid inlet A1 fractional condensation separator gases at high pressure outlet A2
Fractional condensation separator high pressure liquid body outlet A3 fractional condensation separator low-pressure fluid inlet B1
Fractional condensation separator low-pressure fluid outlet B2 heat exchanger E1
Contra-flow heat exchanger Mi_2 in the middle of the rearmounted contra-flow heat exchanger Mi_3
Cooler C22 before second
The specific embodiment
As shown in Figure 1, mixed work medium condensating, separating, throttling deep cooling circular refrigeration system of the present invention, comprise compressor module CU, middle refrigeration module MU and evaporator module EVU, its connected mode is: the high-pressure inlet pipe of refrigeration module MU in the middle of the high-voltage tube outlet of compressor module CU connects, the low tension outlet pipe of refrigeration module MU in the middle of the low pressure inlet pipe of compressor module CU connects; The high-pressure outlet pipe of middle refrigeration module MU connects the high-pressure inlet pipe of evaporator module EVU, and the low pressure inlet pipe of middle refrigeration module MU links to each other with the low tension outlet pipe of evaporator module EVU.
As shown in Figure 2, compressor module CU is by compressor C1, cooler C21 before first, cooler C22 and lubrication oil filtration oil scavenger C3 and pipeline thereof are formed before second, its connected mode is: the high-pressure outlet pipe of compressor C1 connects the inlet tube of cooler C21 before first, the outlet of cooler C21 links to each other with the import of the second preceding cooler C22 import and lubrication oil filtration oil scavenger C3 simultaneously by a three-limb tube spare before first, high-pressure outlet by the export mixes compressor module CU of cooler C22 before second, lubrication oil filtration oil scavenger C3 outlet links to each other with a tee pipe fitting, the low pressure inlet of a connection compressor of two other interface C1 of tee pipe fitting remains the low-pressure inlet that an interface serves as compressor module CU.
Middle refrigeration module MU is made up of 1-5 level multicomponent mixture work medium refrigeration submodule MUZi; Each grade multicomponent mixture work medium refrigeration submodule MUZi mainly comprises fractional condensation separator Mi_4 and restricting element Mi_5 and pipeline thereof, its connected mode is: the high-pressure outlet of previous stage module connects the high-pressure inlet A1 of fractional condensation separator Mi_4, the highly pressurised liquid outlet A3 of fractional condensation separator Mi_4 bottom connects restricting element Mi_5, the outlet of restricting element Mi_5 connects fractional condensation separator Mi_4 low-pressure inlet B1, the gases at high pressure outlet A2 of fractional condensation separator Mi_4 links to each other with the high pressure entry of next stage module, and fractional condensation separator Mi_4 low tension outlet B2 links to each other with the previous stage low-pressure inlet.
Fig. 3 is the structural representation of a kind of multicomponent mixture working medium refrigeration submodule MUZi, as seen from the figure, this multicomponent mixture working medium refrigeration submodule MUZi is by fractional condensation separator Mi_4, restricting element Mi_5 and preposition contra-flow heat exchanger Mi_1, middle contra-flow heat exchanger Mi_2, rearmounted contra-flow heat exchanger Mi_3, its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of preposition contra-flow heat exchanger Mi_1, the high-pressure outlet of preposition contra-flow heat exchanger Mi_1 connects the high-pressure inlet A1 of fractional condensation separator Mi_4, the high pressure entry of contra-flow heat exchanger Mi_2 in the middle of the gases at high pressure outlet A2 of fractional condensation separator Mi_4 connects, the high-pressure outlet of middle contra-flow heat exchanger Mi_2 connects the high pressure entry of rearmounted contra-flow heat exchanger Mi_3, and the high-pressure outlet of rearmounted contra-flow heat exchanger Mi_3 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet A3 of fractional condensation separator Mi_4 links to each other with restricting element Mi_5; Rearmounted contra-flow heat exchanger Mi_3 low-pressure inlet links to each other with next stage module low tension outlet, rearmounted contra-flow heat exchanger Mi_3 low tension outlet links to each other with a tee pipe fitting, two other interface of threeway, low-pressure inlet with middle contra-flow heat exchanger Mi_2 links to each other, remain an outlet that connects restricting element Mi_5, the low tension outlet of middle contra-flow heat exchanger Mi_2 connects the low-pressure inlet B1 of fractional condensation separator Mi_4, the low tension outlet B2 of fractional condensation separator Mi_4 connects the low-pressure inlet of preposition contra-flow heat exchanger Mi_1, and the low tension outlet of preposition contra-flow heat exchanger Mi_1 links to each other with the low-pressure inlet of previous stage module.
Evaporator module EVU comprises restricting element E2 and evaporimeter E3 and pipeline thereof, its connected mode is: the high-pressure outlet of previous stage module links to each other with restricting element E2 high-pressure inlet, the E2 outlet connects the import of evaporimeter E3, and the outlet of E3 links to each other with the low-pressure inlet of previous stage module.
As shown in Figure 4, evaporator module EVU also can comprise restricting element E2, heat exchanger E1 and evaporimeter E3, its connected mode is: the high-pressure outlet of previous stage module links to each other with the high pressure entry of heat exchanger E1, the high-pressure outlet of E1 links to each other with restricting element E2 high-pressure inlet, the E2 outlet connects the import of evaporimeter E3, and the outlet of E3 connects the low pressure inlet of E1, and the low tension outlet of E1 links to each other with the low-pressure inlet of previous stage module.
Embodiment 1: adopt single-stage oil lubrication DRIVEN BY AIR CONDITIONING COMPRESSOR to utilize refrigeration machine of the present invention to reach the 183K warm area, its structure chart is seen Fig. 6.The compressor module concrete structure is: compressor C1 adopts the compressor of air conditioner of the single-stage oil lubrication of 1kW, two preceding cooler C21, C22 is conventional condenser, lubrication oil filtration separator C3 is a conventional products, its connected mode is: compressor C1 high-pressure outlet pipe connects the inlet tube of cooler C21 before first, the outlet of C21 links to each other with the import of the second preceding cooler C22 import and lubrication oil filtration oil scavenger C3 simultaneously by a three-limb tube spare, high-pressure outlet by the export mixes compressor module of C22, lubrication oil filtration oil scavenger C3 outlet links to each other with a tee pipe fitting, a connection compressor of two other interface of tee pipe fitting low pressure inlet remains the low-pressure inlet that an interface serves as compressor module CU.Middle refrigeration module adopts one-level mixed working fluid refrigeration submodule, wherein preposition counterflow heat exchanger M1_1, middle counterflow heat exchanger M1_2, rearmounted counterflow heat exchanger M1_3 adopt pipe box tubular type contra-flow heat exchanger, fractional condensation separator M1_4 structure is seen Fig. 5, and restricting element M1_5 adopts capillary; Its connected mode is: the compressor module high-pressure outlet connects the high pressure entry of preposition contra-flow heat exchanger M1_1, the high-pressure outlet of preposition contra-flow heat exchanger M1_1 connects the high-pressure inlet A1 of M1_4, the high pressure entry of contra-flow heat exchanger M1_2 in the middle of the gases at high pressure outlet A2 of M1_4 connects, the high-pressure outlet of middle contra-flow heat exchanger M1_2 connects the high pressure entry of rearmounted contra-flow heat exchanger M1_3, and the high-pressure outlet of rearmounted contra-flow heat exchanger M1_3 links to each other with the high pressure entry of evaporator module; The high pressure separating liquid outlet A3 of M1_4 links to each other with restricting element M1_5; Rearmounted contra-flow heat exchanger M1_3 low-pressure inlet links to each other with the evaporator module low tension outlet, rearmounted contra-flow heat exchanger M1_3 low tension outlet links to each other with a tee pipe fitting, two other interface of threeway, low-pressure inlet with middle contra-flow heat exchanger M1_2 links to each other, remain an outlet that connects restricting element M1_5, the low tension outlet of middle contra-flow heat exchanger M1_2 connects the low-pressure inlet B1 of M1_4, the low tension outlet B2 of M1_4 connects the low-pressure inlet of preposition contra-flow heat exchanger M1_1, and the low tension outlet of preposition contra-flow heat exchanger M1_1 links to each other with the low-pressure inlet of compressor module.Evaporator module EVU comprises restricting element E2 and evaporimeter E3 and pipeline thereof, its connected mode is: the high-pressure outlet of the rearmounted contra-flow heat exchanger M1_3 in the previous stage module links to each other with restricting element E2 high-pressure inlet, the E2 outlet connects the import of evaporimeter E3, and the outlet of E3 links to each other with the rearmounted contra-flow heat exchanger M1_3 low-pressure inlet of previous stage module.Mixed working fluid is made up of R14, C2H6, C3H8, iso-butane (iC4H10).The concrete course of work is: comprise total composition in the compressed machine C1 compression of interior multicomponent mixture working medium, enter cooler C21 cooling, wherein most of lubricating oil enters the compressor low-voltage tube through the C3 isolated by filtration and gets back to compressor, working medium behind the branch oil is cooled to room temperature through C22, enter refrigeration module, further enter fractional condensation separator M1_4 after the cooling through rearmounted contra-flow heat exchanger M1_3, this moment, part high boiling component such as iso-butane and small amounts of propane formed liquid, comprise residue lubricating oil and after interior liquid phase fluid is through restricting element M1_5 throttling, enter middle contra-flow heat exchanger M1_2, mix with the low pressure working medium of backflowing in the middle of the rearmounted contra-flow heat exchanger M1_3 low-pressure channel, provide cold, as the driving force of fractional condensation separation.Enter evaporator module through the high-pressure fluid behind the contra-flow heat exchanger M1_3, throttling enters evaporimeter E3 through capillary E2 provides cold.The low-pressure fluid that comes out from evaporimeter and the fluid of front throttling converge, and all fluids return compressor at last, finish a circulation.The present embodiment lowest refrigerating temperature can reach 170K, can provide certain refrigerating capacity below 183K, is suitable for the deep cooling refrigerator, preserves as the low temperature of organism and medicine.
Embodiment 2: adopt the present invention to reach the 120K warm area, its structure chart is seen Fig. 7.The compressor module structure is with embodiment 1.Middle refrigeration module MU adopts three grades of mixed working fluid refrigeration submodules, wherein first order refrigeration submodule MUZ1 comprises fractional condensation separator M1_4 and restricting element M1_5 and pipeline thereof, its connected mode is: the compressor module high-pressure outlet connects the high-pressure inlet A1 of fractional condensation separator M1_4, fractional condensation separator M1_4 bottom highly pressurised liquid outlet A3 connects restricting element M1_5, the M1_5 outlet connects fractional condensation separator M1_4 low-pressure inlet B1, M1_4 gases at high pressure outlet A2 links to each other with the high pressure entry of next stage refrigeration module MUZ2, and fractional condensation separator M1_4 low tension outlet B2 links to each other with the compressor module low-pressure inlet.Second level module MUZ2 comprises fractional condensation separator M2_4, restricting element M2_5 and preposition contra-flow heat exchanger M2_1, rearmounted contra-flow heat exchanger M2_3, its connected mode is: previous stage module MUZ1 high-pressure outlet connects the high pressure entry of preposition contra-flow heat exchanger M2_1, the high-pressure outlet of M2_1 connects the high-pressure inlet A1 of M2_4, the gases at high pressure outlet A2 of M2_4 connects the high pressure entry of M2_3, and the high-pressure outlet of M2_3 links to each other with the high pressure entry of next stage module MUZ3; The high pressure separating liquid outlet A3 of M2_4 links to each other with restricting element M25; The M2_3 low-pressure inlet links to each other with next stage module MUZ3 low tension outlet, the M2_3 low tension outlet links to each other with a tee pipe fitting, two other interface of threeway, one links to each other with the low-pressure inlet B1 of M2_4, remain an outlet that connects restricting element M2_5, the low tension outlet B2 of M2_4 connects the low-pressure inlet of M2_1, and the low tension outlet of M2_1 links to each other with the low-pressure inlet of previous stage module MUZ1.Third level module MUZ3 comprises fractional condensation separator M3_4, restricting element M3_5 and middle contra-flow heat exchanger M3_2, rearmounted contra-flow heat exchanger M3_3, its connected mode is: previous stage module MUZ2 high-pressure outlet connects the high-pressure inlet A1 of M3_4, the gases at high pressure outlet A2 of M3_4 connects the high pressure entry of M3_2, the high-pressure outlet of M3_2 connects the high pressure entry of M3_3, and the high-pressure outlet of M3_3 links to each other with the high pressure entry of next stage module EVU; The high pressure separating liquid outlet A3 of M3_4 links to each other with restricting element M3_5; The M3_3 low-pressure inlet links to each other with next stage module low tension outlet, the M3_3 low tension outlet links to each other with a tee pipe fitting, two other interface of threeway, one links to each other with the low-pressure inlet of M3_2, remain an outlet that connects restricting element M3_5, the low tension outlet of M3_2 connects the low-pressure inlet B1 of M3_4, and the low tension outlet B2 of M3_4 links to each other with the low-pressure inlet of previous stage module.Evaporator module EVU comprises restricting element E2 and evaporimeter E3 and pipeline thereof, its connected mode is: the high-pressure outlet of the rearmounted contra-flow heat exchanger M3 3 in the previous stage module links to each other with restricting element E2 high-pressure inlet, the E2 outlet connects the import of evaporimeter E3, and the outlet of E3 links to each other with the contra-flow heat exchanger M3_3 low-pressure inlet of previous stage module.Multicomponent mixture working medium is made up of N2, CH4, C2H6, C3H8, iC4H10, iC5H12.Present embodiment can provide certain refrigerating capacity at the 120K warm area, can be used for some application scenario such as natural gas liquefaction.
Embodiment 3: adopt the present invention to reach liquid nitrogen temperature, its structure is seen Fig. 8.Compressor module is with embodiment 1.Middle refrigeration module adopts the Pyatyi submodule to constitute, wherein first order mixture working medium refrigeration submodule MUZ1 comprises fractional condensation separator M1_4, restricting element M1_5 and preposition contra-flow heat exchanger M1_1, middle contra-flow heat exchanger M1_2, its connected mode is: the compressor module high-pressure outlet connects the high pressure entry of contra-flow heat exchanger M1_1, the high-pressure outlet of M1_1 connects the high-pressure inlet of M1_4, the gases at high pressure outlet of M1_4 connects the high pressure entry of M1_2, and the high-pressure outlet of M1_2 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet of M1_4 links to each other with restricting element M1_5; The M1_2 low-pressure inlet links to each other with a tee pipe fitting, two other interface of tee pipe fitting, low tension outlet with the next stage module links to each other, remain an outlet that connects restricting element M1_5, the low tension outlet of M1_2 connects the low-pressure inlet of M14, the low tension outlet of M1_4 connects the low-pressure inlet of M1_1, and the low tension outlet of M1_1 links to each other with the low-pressure inlet of compressor module.Second level submodule MUZ2 comprises fractional condensation separator M2_4, restricting element M2_5 and middle contra-flow heat exchanger M2_2, its connected mode is: previous stage module high-pressure outlet connects the high pressure entry of fractional condensation separator M2_4, the gases at high pressure outlet of M2_4 connects the high pressure entry of M2_2, and the high-pressure outlet of M2_2 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet of M2_4 links to each other with restricting element M2_5; The M2_2 low-pressure inlet links to each other with a tee pipe fitting, two other interface of threeway, low tension outlet with the next stage module links to each other, remain an outlet that connects restricting element M2_5, the low tension outlet of M2_2 connects the low-pressure inlet of M2_4, and the low tension outlet of M2_4 links to each other with the low-pressure inlet of previous stage module.Third level submodule MUZ3 comprises fractional condensation separator M3_4, restricting element M3_5 and rearmounted contra-flow heat exchanger M3_3, its connected mode is: the previous stage high-pressure outlet connects the high pressure entry of fractional condensation separator M3_4, the gases at high pressure outlet of M3_4 connects the high pressure entry of M3_3, and the high-pressure outlet of M3_3 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet of M3_4 links to each other with restricting element M3_5; The M3_3 low-pressure inlet links to each other with next stage module low tension outlet, the M3_3 low tension outlet links to each other with a tee pipe fitting, two other interface of threeway, one links to each other with the low-pressure inlet of M3_4, remain an outlet that connects restricting element M3_5, the low tension outlet of M3_4 links to each other with the low-pressure inlet of previous stage module.Fourth stage submodule MUZ4 mainly comprises fractional condensation separator M4_4 and restricting element M4_5 and pipeline thereof, its connected mode is: previous stage module high-pressure outlet connects the high-pressure inlet of fractional condensation separator M4_4, the highly pressurised liquid outlet of fractional condensation separator M4_4 bottom connects restricting element M4_5, the M4_5 outlet connects fractional condensation separator M4_4 low-pressure inlet, the outlet of M4_4 gases at high pressure links to each other with the high pressure entry of next stage module, and fractional condensation separator M4_4 low tension outlet links to each other with the previous stage low-pressure inlet.Level V submodule MUZ5 comprises fractional condensation separator M5_4, restricting element M5_5 and contra-flow heat exchanger M5_1, its connected mode is: previous stage module high-pressure outlet connects the high pressure entry of contra-flow heat exchanger M5_1, the high-pressure outlet of M5_1 connects the high-pressure inlet of M5_4, and the gases at high pressure outlet of M5_4 links to each other with the high pressure entry of next stage module; The high pressure separating liquid outlet of M5_4 links to each other with restricting element M5_5; The M5_4 low-pressure inlet links to each other with a tee pipe fitting, two other interface of threeway, the low tension outlet of a next stage module links to each other, remain an outlet that connects restricting element M5_5, the low tension outlet of M5_4 connects the low-pressure inlet of M5_1, and the low tension outlet of M5_1 links to each other with the low-pressure inlet of previous stage module.Mixed working fluid is made up of Ne, N2, CH4, C2H6, C3H8, iC4H10.The present embodiment lowest refrigerating temperature can reach 70K, can provide certain refrigerating capacity in the 77K temperature, is suitable for the cooling high-temperature superconducting device.
Claims (9)
1. mixed work medium condensating, separating, throttling deep cooling circular refrigeration system, it is characterized in that: comprise compressor module (CU), middle refrigeration module (MU) and evaporator module (EVU), its connected mode is: the high-voltage tube import of refrigeration module (MU) in the middle of the high-voltage tube outlet of compressor module (CU) connects, the low tension outlet pipe of refrigeration module (MU) in the middle of the low pressure inlet pipe of compressor module (CU) connects; The high-pressure outlet pipe of middle refrigeration module (MU) connects the high-pressure inlet pipe of evaporator module (EVU), and the low pressure inlet pipe of middle refrigeration module (MU) links to each other with the low tension outlet pipe of evaporator module (EVU);
Described compressor module (CU) is by compressor (C1), cooler (C21) before first, cooler (C22) and lubrication oil filtration oil scavenger (C3) and pipeline thereof are formed before second, its connected mode is: the high-pressure outlet pipe of compressor (C1) connects the inlet tube of cooler (C21) before first, the outlet of cooler (C21) links to each other with the import of second preceding cooler (C22) import and lubrication oil filtration oil scavenger (C3) simultaneously by a three-limb tube spare before first, high-pressure outlet by the export mixes compressor module (CU) of cooler (C22) before second, lubrication oil filtration oil scavenger (C3) outlet links to each other with a tee pipe fitting, the low pressure inlet of a tee pipe fitting connection compressor of two other interface (C1) remains the low-pressure inlet that an interface serves as compressor module (CU);
Refrigeration module (MU) is made up of 1-5 level multicomponent mixture work medium refrigeration submodule (MUZi) in the middle of described, each grade multicomponent mixture work medium refrigeration submodule (MUZi) mainly comprises fractional condensation separator (Mi_4) and restricting element (Mi_5) and pipeline thereof, its connected mode is: the high-pressure outlet of previous stage module connects the high-pressure inlet (A1) of fractional condensation separator (Mi_4), the highly pressurised liquid outlet (A3) of fractional condensation separator (Mi_4) bottom connects restricting element (Mi_5), the outlet of restricting element (Mi_5) connects fractional condensation separator (Mi_4) low-pressure inlet (B1), the low-pressure inlet (B1) of fractional condensation separator (Mi_4) is connected with the low tension outlet of next stage module simultaneously, the gases at high pressure outlets (A2) of fractional condensation separator (Mi_4) link to each other with the high pressure entry of next stage multicomponent mixture work medium refrigeration submodule (MUZi), and fractional condensation separator (Mi_4) low tension outlet (B2) links to each other with the previous stage low-pressure inlet;
Described evaporator module (EVU) comprises restricting element (E2) and evaporimeter (E3) and pipeline thereof, its connected mode is: the high-pressure outlet of previous stage module links to each other with the high-pressure inlet of restricting element (E2), the outlet of restricting element (E2) connects the import of evaporimeter (E3), and the outlet of evaporimeter (E3) links to each other with the low-pressure inlet of previous stage module.
2. by the described mixed work medium condensating, separating, throttling deep cooling circular refrigeration system of claim 1, it is characterized in that: each grade multicomponent mixture working medium refrigeration submodule (MUZi) in the middle of described in the refrigeration module (MU) also comprises preposition contra-flow heat exchanger (Mi_1), middle contra-flow heat exchanger (Mi_2) and rearmounted contra-flow heat exchanger (Mi_3), its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of preposition contra-flow heat exchanger (Mi_1), the high-pressure outlet of preposition contra-flow heat exchanger (Mi_1) connects the high-pressure inlet (A1) of fractional condensation separator (Mi_4), the high pressure entry of contra-flow heat exchanger (Mi_2) in the middle of the gases at high pressure outlets (A2) of fractional condensation separator (Mi_4) connect, the high-pressure outlet of middle contra-flow heat exchanger (Mi_2) connects the high pressure entry of rearmounted contra-flow heat exchanger (Mi_3), and the high-pressure outlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with the high pressure entry of next stage multicomponent mixture working medium refrigeration submodule; The high pressure separating liquid outlet (A3) of fractional condensation separator (Mi_4) links to each other with restricting element (Mi_5); The low-pressure inlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with the low tension outlet of next stage module, rearmounted contra-flow heat exchanger (Mi_3) low tension outlet links to each other with a tee pipe fitting, two other interface of threeway, low-pressure inlet with middle contra-flow heat exchanger (Mi_2) links to each other, remain an outlet that connects restricting element (Mi_5), the low tension outlet of middle contra-flow heat exchanger (Mi_2) connects the low-pressure inlet (B1) of fractional condensation separator (Mi_4), the low tension outlet (B2) of fractional condensation separator (Mi_4) connects the low-pressure inlet of preposition contra-flow heat exchanger (Mi_1), and the low tension outlet of preposition contra-flow heat exchanger (Mi_1) links to each other with the low-pressure inlet of previous stage module.
3. by the described mixed work medium condensating, separating, throttling deep cooling circular refrigeration system of claim 1, it is characterized in that: each grade multicomponent mixture working medium refrigeration submodule (MUZi) in the middle of described in the refrigeration module (MU) also comprises preposition contra-flow heat exchanger (Mi_1), middle contra-flow heat exchanger (Mi_2), its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of preposition contra-flow heat exchanger (Mi_1), the high-pressure outlet of preposition contra-flow heat exchanger (Mi_1) connects the high-pressure inlet (A1) of fractional condensation separator (Mi_4), the high pressure entry of contra-flow heat exchanger (Mi_2) in the middle of the gases at high pressure outlets (A2) of fractional condensation separator (Mi_4) connect, the high-pressure outlet of middle contra-flow heat exchanger (Mi_2) links to each other with the high pressure entry of multicomponent mixture working medium refrigeration submodule; The high pressure separating liquid outlet (A3) of fractional condensation separator (Mi_4) links to each other with restricting element (Mi_5); Middle contra-flow heat exchanger (Mi_2) low-pressure inlet links to each other with a tee pipe fitting, two other interface of tee pipe fitting, low tension outlet with the next stage module links to each other, remain an outlet that connects restricting element (Mi_5), the low tension outlet of middle contra-flow heat exchanger (Mi_2) connects the low-pressure inlet (B1) of fractional condensation separator (Mi_4), the low tension outlet (B2) of fractional condensation separator (Mi_4) connects the low-pressure inlet of preposition contra-flow heat exchanger (Mi_1), and the low tension outlet of preposition contra-flow heat exchanger (Mi_1) links to each other with the low-pressure inlet of previous stage module.
4. by the described mixed work medium condensating, separating, throttling deep cooling circular refrigeration system of claim 1, it is characterized in that: each grade multicomponent mixture working medium refrigeration submodule (MUZi) in the middle of described in the refrigeration module (MU) also comprises preposition contra-flow heat exchanger (Mi_1), rearmounted contra-flow heat exchanger (Mi_3), its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of preposition contra-flow heat exchanger (Mi_1), the high-pressure outlet of preposition contra-flow heat exchanger (Mi_1) connects the high-pressure inlet (A1) of fractional condensation separator (Mi_4), the gases at high pressure outlets (A2) of fractional condensation separator (Mi_4) connect the high pressure entry of rearmounted contra-flow heat exchanger (Mi_3), and the high-pressure outlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with the high pressure entry of next stage multicomponent mixture working medium refrigeration submodule; The high pressure separating liquid outlet (A3) of fractional condensation separator (Mi_4) links to each other with restricting element (Mi_5); The low-pressure inlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with next stage module low tension outlet, the low tension outlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with a tee pipe fitting, two other interface of threeway, one links to each other with the low-pressure inlet (B1) of fractional condensation separator (Mi_4), remain an outlet that connects restricting element (Mi_5), the low tension outlet (B2) of fractional condensation separator (Mi_4) connects the low-pressure inlet of preposition contra-flow heat exchanger (Mi_1), and the low tension outlet of contra-flow heat exchanger (Mi_1) links to each other with the low-pressure inlet of previous stage module.
5. by the described mixed work medium condensating, separating, throttling deep cooling circular refrigeration system of claim 1, it is characterized in that: contra-flow heat exchanger (Mi_2) in the middle of each grade multicomponent mixture working medium refrigeration submodule (MUZi) in the middle of described in the refrigeration module (MU) also comprises, rearmounted contra-flow heat exchanger (Mi_3), its connected mode is: the high-pressure outlet of previous stage module connects the high-pressure inlet (A1) of fractional condensation separator (Mi_4), the high pressure entry of contra-flow heat exchanger (Mi_2) in the middle of the gases at high pressure outlets (A2) of fractional condensation separator (Mi_4) connect, the high-pressure outlet of middle contra-flow heat exchanger (Mi_2) connects the high pressure entry of rearmounted contra-flow heat exchanger (Mi_3), and the high-pressure outlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with the high pressure entry of next stage multicomponent mixture working medium refrigeration submodule; The high pressure separating liquid outlet (A3) of fractional condensation separator (Mi_4) links to each other with restricting element (Mi_5); The low-pressure inlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with next stage module low tension outlet, rearmounted contra-flow heat exchanger (Mi_3) low tension outlet links to each other with a tee pipe fitting, two other interface of threeway, low-pressure inlet with middle contra-flow heat exchanger (Mi_2) links to each other, remain an outlet that connects restricting element Mi_5, the low tension outlet of middle contra-flow heat exchanger Mi_2 connects the low-pressure inlet (B1) of fractional condensation separator (Mi_4), and the low tension outlet (B2) of fractional condensation separator (Mi_4) links to each other with the low-pressure inlet of previous stage module.
6. by the described mixed work medium condensating, separating, throttling deep cooling circular refrigeration system of claim 1, it is characterized in that: each grade multicomponent mixture working medium refrigeration submodule (MUZi) in the middle of described in the refrigeration module (MU) also comprises preposition contra-flow heat exchanger (Mi_1), its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of preposition contra-flow heat exchanger (Mi_1), the high-pressure outlet of preposition contra-flow heat exchanger (Mi_1) connects the high-pressure inlet (A1) of fractional condensation separator (Mi_4), and the gases at high pressure outlets (A2) of fractional condensation separator (Mi_4) link to each other with the high pressure entry of next stage multicomponent mixture working medium refrigeration submodule; The high pressure separating liquid outlet (A3) of fractional condensation separator (Mi_4) links to each other with restricting element (Mi_5); Fractional condensation separator (Mi_4) low-pressure inlet links to each other with a tee pipe fitting, two other interface of threeway, the low tension outlet of a next stage module links to each other, remain an outlet that connects restricting element (Mi_5), the low tension outlet (B2) of fractional condensation separator (Mi_4) connects the low-pressure inlet of (Mi_1), and the low tension outlet of preposition contra-flow heat exchanger (Mi_1) links to each other with the low-pressure inlet of previous stage module.
7. by the described mixed work medium condensating, separating, throttling deep cooling circular refrigeration system of claim 1, it is characterized in that: contra-flow heat exchanger (Mi_2) in the middle of each grade multicomponent mixture working medium refrigeration submodule (MUZi) in the middle of described in the refrigeration module (MU) also comprises, its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry (A1) of fractional condensation separator (Mi_4), the high pressure entry of contra-flow heat exchanger (Mi_2) in the middle of the gases at high pressure outlets (A2) of fractional condensation separator (Mi_4) connect, the high-pressure outlet of middle contra-flow heat exchanger (Mi_2) links to each other with the high pressure entry of next stage multicomponent mixture working medium refrigeration submodule; The high pressure separating liquid outlet (A3) of fractional condensation separator (Mi_4) links to each other with restricting element (Mi_5); The low-pressure inlet of middle contra-flow heat exchanger (Mi_2) links to each other with a tee pipe fitting, two other interface of threeway, low tension outlet with the next stage module links to each other, remain an outlet that connects restricting element (Mi_5), the low tension outlet of middle contra-flow heat exchanger (Mi_2) connects the low-pressure inlet (B1) of fractional condensation separator (Mi_4), and the low tension outlet (B2) of fractional condensation separator (Mi_4) links to each other with the low-pressure inlet of previous stage module.
8. by the described mixed work medium condensating, separating, throttling deep cooling circular refrigeration system of claim 1, it is characterized in that: each grade multicomponent mixture working medium refrigeration submodule (MUZi) in the middle of described in the refrigeration module (MU) also comprises rearmounted contra-flow heat exchanger (Mi_3), its connected mode is: the high-pressure outlet of previous stage module connects the high pressure entry of fractional condensation separator (Mi_4), the gases at high pressure outlets (A2) of fractional condensation separator (Mi_4) connect the high pressure entry of rearmounted contra-flow heat exchanger (Mi_3), and the high-pressure outlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with the high pressure entry of next stage multicomponent mixture working medium refrigeration submodule; The high pressure separating liquid outlet (A3) of fractional condensation separator (Mi_4) links to each other with restricting element (Mi_5); The low-pressure inlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with the low tension outlet of next stage module, the low tension outlet of rearmounted contra-flow heat exchanger (Mi_3) links to each other with a tee pipe fitting, two other interface of threeway, one links to each other with the low-pressure inlet (B1) of fractional condensation separator (Mi_4), remain an outlet that connects restricting element (Mi_5), the low tension outlet (B2) of fractional condensation separator (Mi_4) links to each other with the low-pressure inlet of previous stage module.
9. by the described mixed work medium condensating, separating, throttling deep cooling circular refrigeration system of claim 1, it is characterized in that: described evaporator module (EVU) also comprises heat exchanger (E1), its connected mode is: the high-pressure outlet of previous stage module links to each other with the high pressure entry of heat exchanger (E1), the high-pressure outlet of heat exchanger (E1) links to each other with restricting element (E2) high-pressure inlet, the outlet of restricting element (E2) connects the import of evaporimeter (E3), the outlet of evaporimeter (E3) connects the low pressure inlet of heat exchanger (E1), and the low tension outlet of heat exchanger (E1) links to each other with the low-pressure inlet of previous stage module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136709 CN1122797C (en) | 2000-12-28 | 2000-12-28 | Mixed work medium condensating, separating, throttling and deep cooling circular refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136709 CN1122797C (en) | 2000-12-28 | 2000-12-28 | Mixed work medium condensating, separating, throttling and deep cooling circular refrigeration system |
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| Publication Number | Publication Date |
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| CN1361399A CN1361399A (en) | 2002-07-31 |
| CN1122797C true CN1122797C (en) | 2003-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00136709 Expired - Fee Related CN1122797C (en) | 2000-12-28 | 2000-12-28 | Mixed work medium condensating, separating, throttling and deep cooling circular refrigeration system |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100344872C (en) * | 2004-06-11 | 2007-10-24 | 中国科学院理化技术研究所 | High vacuum cryogenic water vapor catcher |
| CN101776358B (en) * | 2010-03-02 | 2012-07-25 | 浙江大学 | Varied concentration mixed working medium auto-cascade refrigerator |
| CN101893343B (en) * | 2010-06-24 | 2012-08-15 | 中国科学院理化技术研究所 | Multi-element mixed working medium throttling refrigerator with deeply separated refrigerant and lubricating oil |
| CN102331103B (en) * | 2011-03-15 | 2014-01-22 | 中科赛凌（北京）科技有限公司 | Method for adjusting and controlling capability and work condition of cryogenic mixed working medium throttling refrigeration system |
| CN102494467B (en) * | 2011-12-07 | 2013-09-18 | 中科赛凌（北京）科技有限公司 | Throttling and refrigerating freezing storage box with two-stage fractional condensation and separation reheating type mixed working medium |
| CN103822389B (en) * | 2013-12-10 | 2016-08-17 | 中国科学院理化技术研究所 | Multi-element mixed working medium regenerative throttling refrigeration cycle system with fractional condensation separation |
| CN105091382B (en) * | 2015-07-29 | 2017-10-03 | 中国科学院理化技术研究所 | Cryogenic refrigerator and control method thereof |
| CN105571187A (en) * | 2016-01-04 | 2016-05-11 | 上海理工大学 | Ultralow-temperature cascade refrigerating system adopting Xe as low-temperature stage refrigerant |
| CN107238237A (en) * | 2017-06-28 | 2017-10-10 | 中山阿瑞德电器设备有限公司 | A kind of multicomponent mixture work medium single-stage separating, throttling circulates cryogenic refrigeration system |
| CN107152808A (en) * | 2017-06-28 | 2017-09-12 | 中山阿瑞德电器设备有限公司 | A kind of circulating with choke cryogenic refrigeration system of multicomponent mixture work medium |
| CN108531135B (en) | 2018-04-10 | 2021-05-07 | 龙志刚 | Mixed refrigerant suitable for cryogenic temperature zone and preparation method and application method thereof |
| CN114111133B (en) * | 2021-11-19 | 2023-01-24 | 清华大学 | Gas-liquid separator for self-cascade refrigeration system and self-cascade refrigeration system |
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