CN102080899A - Tandem double-absorber low-temperature refrigerator - Google Patents
Tandem double-absorber low-temperature refrigerator Download PDFInfo
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- CN102080899A CN102080899A CN2011100088930A CN201110008893A CN102080899A CN 102080899 A CN102080899 A CN 102080899A CN 2011100088930 A CN2011100088930 A CN 2011100088930A CN 201110008893 A CN201110008893 A CN 201110008893A CN 102080899 A CN102080899 A CN 102080899A
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- Prior art keywords
- heat exchanger
- refrigerant
- solution
- absorber
- cold
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 64
- 239000003507 refrigerant Substances 0.000 claims abstract description 92
- 238000005057 refrigeration Methods 0.000 claims abstract description 21
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 claims description 24
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 18
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims description 16
- 230000006837 decompression Effects 0.000 claims description 12
- 239000002250 absorbent Substances 0.000 claims description 6
- 230000002745 absorbent Effects 0.000 claims description 6
- 239000007791 liquid phase Substances 0.000 claims description 6
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 claims description 6
- 239000012808 vapor phase Substances 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 25
- 239000002440 industrial waste Substances 0.000 abstract description 8
- 238000001704 evaporation Methods 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000008020 evaporation Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 62
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000011552 falling film Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000001007 puffing effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses a tandem double-absorber low-temperature refrigerator. The refrigerator comprises an auto-cascade cooling module and a solution circulating module. Based on an auto-cascade cooling principle, in the tandem double-absorber low-temperature refrigerator, thin solution from a generator absorbs a refrigerant from an evaporator firstly and the tandem double-absorber low-temperature refrigerator makes full use of the absorbing capacity of the thin solution and reduces the evaporation pressure, so compared with the traditional auto-cascade absorption refrigerator, the tandem double-absorber low-temperature refrigerator has more excellent performance factors and the lowest refrigerating temperature. The tandem double-absorber low-temperature refrigerator can be driven by reproducible energy, such as solar energy, ground heat, industrial waste heat, industrial afterheat and the like, and low-grade heat energy, obtains the refrigerating temperature below -60 to -70 DEG C which the traditional absorption refrigerator cannot reach, greatly expands the application range of the absorption type refrigerator in the deep refrigeration field and has wide application prospect in the field needing deep refrigeration and having a large amount of industrial waste heat and afterheat.
Description
Technical field
The invention belongs to refrigerating field, be specifically related to a kind of low absorption Cryo Refrigerator.
Background technology
The auto-cascade absorption refrigeration device combines the theoretical and Absorption Cooling System theory from the overlapping kind of refrigeration cycle, with multiple heat energy forms such as steam, combustion gas, fuel oil, hot water is power, the mechanical power that consumes is less, and can obtain traditional Absorption Refrigerator lower cryogenic temperature that is beyond one's reach.This technology is applied to the cryogenic refrigeration field for the Absorption Cooling System that will be driving force with heat energy and has important directive significance.Not only needed cryogenic refrigeration but also existed in the field of a large amount of industrial waste heats and waste heat to have wide practical use in chemical industry, biology, food processing, pharmacy etc.
The patent No. is that the Chinese patent of ZL02110940.0 discloses a kind of refrigeration equipment with cryogenic refrigeration absorbent, and an absorber is only arranged in its circulation process, enters absorber after two bursts of refrigerant mixed and is absorbed by weak solution.Two strands of cold-producing mediums pressure before mixing equates in this flow process, is difficult to absorption process is strengthened, and has also limited the reduction of evaporating pressure simultaneously, is difficult to obtain lower cryogenic temperature.Simultaneously, the loss of the irreversibility that mixed process produced of cold-producing medium can cause the loss of cold.These deficiencies have limited the performance of this contrive equipment, and the possibility that its performance still improves a lot also is described.
The patent No. is that the Chinese patent of ZL03115631.2 discloses a kind of absorption Cryo Refrigerator, adopts two absorbers to strengthen absorption process in its circulation process.Pressure in weak solution two absorbers of flowing through successively, previous stage absorber will be higher than the back one-level.This makes the previous stage absorber state that in theory just can not reach capacity; Otherwise cold-producing medium promptly can evaporate from absorbent behind the one-level absorber of inflow back.Therefore, the previous stage absorber of this device can't make full use of the absorbability of solution, and the one-level absorber can't operate as normal after also causing easily.Therefore, adopting the patent No. is that the disclosed biabsorption device of the Chinese patent flow process of ZL03115631.2 is strengthened absorption process bigger limitation is still arranged.Correspondingly, still restriction to some extent of the overall performance of its circulation.
Application number is that the Chinese patent application of CN200910304102.1 proposes to utilize injector that the absorption process of absorber is carried out supercharging in the hope of strengthening absorption process and obtaining low cryogenic temperature.This mode is because the efficient of injector is lower, and the driving that injector utilizes can be from the weak solution that takes place to end, and the energy density of drive fluid is low, and the injection of injector is lower than very, can be also few by the refrigerant amount of injector injection.The effect of supercharging reinforcement absorption process and the low cryogenic temperature of acquisition is very limited.
Summary of the invention
The invention provides a kind of tandem type biabsorption device Cryo Refrigerator, its coefficient of performance is higher, cryogenic temperature is lower, has overcome the deficiencies in the prior art and defective.
A kind of tandem type biabsorption device Cryo Refrigerator comprises from overlapping refrigeration module and solution circulation module; Wherein, describedly comprise from the overlapping refrigeration module: condenser, vapour liquid separator, first refrigerant heat exchanger, second refrigerant heat exchanger, the first cold-producing medium decompressor, evaporimeter, the 3rd refrigerant heat exchanger and the second cold-producing medium decompressor, described solution circulation module comprises: generator, solution decompression device, first absorber, first solution pump, second absorber, second solution pump and solution heat exchanger;
Described in the overlapping refrigeration module, the outlet of described condenser links to each other with the inlet of described vapour liquid separator, and the vapor phase refrigerant outlet of described vapour liquid separator links to each other with the high-pressure side passage of the high-pressure side passage of described first refrigerant heat exchanger, described second refrigerant heat exchanger, the described first cold-producing medium decompressor, described evaporimeter, the low-pressure side passage of described second refrigerant heat exchanger, the low-pressure side passage of described the 3rd refrigerant heat exchanger, the refrigerant inlet of described first absorber successively; The liquid phase refrigerant outlet of described vapour liquid separator links to each other with the high-pressure side passage of described the 3rd refrigerant heat exchanger, the described second cold-producing medium decompressor, the low-pressure side passage of described first refrigerant heat exchanger, the refrigerant inlet of described second absorber successively;
In the described solution circulation module, the weak solution outlet of described generator links to each other with the concentrated solution import of the weak solution wing passage of described solution heat exchanger, described solution decompression device, described first absorber, described first solution pump, described second absorber, described second solution pump, the concentrated solution wing passage of described solution heat exchanger, described generator successively, and the refrigerant vapour outlet of described generator links to each other with the inlet of described condenser.
Among the present invention, described first absorber, first solution pump, second absorber, second solution pump connect in the mode of series connection.In described first absorber and second absorber, absorbent is N, dinethylformamide (DMF) or tetraethylene glycol dimethyl ether organic solvents such as (DMRTEG).Described two absorbers (first absorber and second absorber) can be fountain, material filling type, falling film type, also can be the absorbers of other form.
Described cold-producing medium is and eco-friendly binary or polynary mixed non-azeotropic refrigerant, can be the mixture of HFC-134a (R134a) and difluoromethane (R32) composition or the mixture of HFC-134a (R134a) and fluoroform (R23) composition, wherein HFC-134a (R134a) is as high temperature refrigerant, and difluoromethane (R32) or fluoroform (R23) are as low-temperature refrigerant; Also can be the ternary mixture of HFC-134a (R134a), difluoromethane (R32) and fluoroform (R23) composition, wherein HFC-134a (R134a) is a high temperature refrigerant, difluoromethane (R32) is middle temperature cold-producing medium, and fluoroform (R23) is a low-temperature refrigerant.
Among the present invention, described four heat exchangers (first refrigerant heat exchanger, second refrigerant heat exchanger, the 3rd refrigerant heat exchanger and solution heat exchanger) can be shell and tube, bushing type, also can be other form, its heat exchanger tube can be a common tube, also can be enhanced tube.
Among the present invention, the effect of described three decompressors (the first cold-producing medium decompressor, the second cold-producing medium decompressor and solution decompression device) is to allow the working medium puffing that flows through, and can be capillary, automatic or manual device.
Among the present invention, generator described in the tandem type biabsorption device Cryo Refrigerator can be by renewable heat energy or low grade heat energy drivings such as solar energy, underground heat, industrial waste heat and waste heats.
Tandem type biabsorption device Cryo Refrigerator of the present invention is based on from the overlapping refrigeration principle, at first absorb the cold-producing medium of origin flash-pot from the weak solution of generator, farthest utilized the absorbability of weak solution, reduced evaporating pressure, more existing auto-cascade absorption refrigeration device has the more excellent coefficient of performance and lowest refrigerating temperature.Tandem type biabsorption device Cryo Refrigerator of the present invention, can drive (being that described generator can be driven by renewable heat energy such as solar energy, underground heat, industrial waste heat and waste heat or low grade heat energy) by renewable heat energy such as solar energy, underground heat, industrial waste heat and waste heat or low grade heat energy, obtain be beyond one's reach cryogenic temperature below-60～-70 ℃ of conventional Absorption Refrigerator, expanded Absorption Refrigerator greatly in cryogenic refrigeration Application for Field scope.Not only needed cryogenic refrigeration but also existed in the field of a large amount of industrial waste heats and waste heat to have wide practical use in chemical industry, biology, food processing, pharmacy etc.
Compared with prior art, the present invention has following beneficial technical effects:
By being connected in series of two absorbers and solution pump, under identical operating mode and solution concentration, its evaporating pressure will further reduce.By the character of non-azeotropic mixed working medium as can be known, along with the reduction of evaporating pressure, can increase the enthalpy difference that evaporimeter is imported and exported cold-producing medium, the existing absorption Cryo Refrigerator of its COP (Coefficient ofPerformance, the coefficient of performance) can improve more than 20%; The scope of its cryogenic temperature will further be extended to lower temperature range simultaneously, obtain the cryogenic temperature below-60～-70 ℃ easily.In the tandem type biabsorption device Cryo Refrigerator of the present invention, two absorbers are shared solution decompression valve, structure is simpler, and cost is more saved, and still obtains extraordinary strengthening effect simultaneously.
Description of drawings
Fig. 1 is the structural representation of tandem type biabsorption device Cryo Refrigerator of the present invention.
The specific embodiment
Describe the present invention in detail below in conjunction with embodiment and accompanying drawing, but the present invention is not limited to this.As shown in Figure 1, a kind of tandem type biabsorption device Cryo Refrigerator comprises from overlapping refrigeration module and solution circulation module.Wherein, comprise from the overlapping refrigeration module: condenser 8, vapour liquid separator 9, first refrigerant heat exchanger 10, second refrigerant heat exchanger 11, the first cold-producing medium decompressor 12, evaporimeter 13, the 3rd refrigerant heat exchanger 15 and the second cold-producing medium decompressor 14, solution circulation module comprises: generator 1, solution decompression device 6, first absorber 2, first solution pump 4, second absorber 3, second solution pump 5 and solution heat exchanger 7;
In the overlapping refrigeration module, the outlet of condenser 8 links to each other with the inlet of vapour liquid separator 9, and the outlet of the vapor phase refrigerant of vapour liquid separator 9 links to each other with the high-pressure side passage of the high-pressure side passage of first refrigerant heat exchanger 10, second refrigerant heat exchanger 11, the first cold-producing medium decompressor 12, evaporimeter 13, the low-pressure side passage of second refrigerant heat exchanger 11, the low-pressure side passage of the 3rd refrigerant heat exchanger 15, the refrigerant inlet of first absorber 2 successively; The outlet of the liquid phase refrigerant of vapour liquid separator 9 links to each other with the high-pressure side passage of the 3rd refrigerant heat exchanger 15, the second cold-producing medium decompressor 14, the low-pressure side passage of first refrigerant heat exchanger 10, the refrigerant inlet of second absorber 3 successively;
In the solution circulation module, the outlet of the weak solution of generator 1 links to each other with the weak solution wing passage of solution heat exchanger 7, solution decompression device 6, first absorber 2, first solution pump 4, second absorber 3, second solution pump 5, the concentrated solution wing passage of solution heat exchanger 7, the concentrated solution import of generator 1 successively, and the refrigerant vapour of generator 1 exports and links to each other with the inlet of condenser 8.
The course of work of above-mentioned tandem type biabsorption device Cryo Refrigerator is as follows:
The HTHP mixed refrigerant vapor that generator 1 produces, behind water-cooled condenser 8, state with the vapour-liquid two-phase enters vapour liquid separator 9, the vapour phase composition is that the mix refrigerant that is rich in low boiling point refrigerant is vapor phase refrigerant (refrigerant vapour) in the vapour liquid separator 9, and liquid phase ingredient is that the mix refrigerant that is rich in the higher boiling cold-producing medium is liquid phase refrigerant (refrigerant liquid).
Liquid phase refrigerant in the vapour liquid separator 9, enters second absorber 3 subsequently and is absorbed the agent absorption with after the second cold-producing medium decompressor 14 enters first refrigerant heat exchanger 10 through the 3rd refrigerant heat exchanger 15 and by precooling.
Vapor phase refrigerant in the vapour liquid separator 9 through first refrigerant heat exchanger 10 and by precooling after, enter second refrigerant heat exchanger 11 and obtain further precooling, with after the first cold-producing medium decompressor 12, enter that the evaporation heat absorption provides required refrigerating capacity in the evaporimeter 13.Temperature continued to raise after the low-temperature refrigerant steam that comes out from evaporimeter 13 was recovered cold through second refrigerant heat exchanger 11 and the 3rd refrigerant heat exchanger 15 successively.At last, enter first absorber 2 and be absorbed the agent absorption.
The weak solution that produces in the generator 1 by precooling, becomes concentrated solution through the weak solution passage of solution heat exchanger 7 again after solution decompression device 6 enters the refrigerant vapour that is rich in low boiling component that first absorber 2 absorbs flash-pot 13.Concentrated solution in first absorber 2 is transported to second absorber 3 through first solution pump 4, and further absorption is from the refrigerant vapour that is rich in high boiling component of first refrigerant heat exchanger 10, and its concentration further improves.Concentrated solution in second absorber 3 is transported to solution heat exchanger 7 through second solution pump 5, enters generator 1 after being preheated, thereby finishes the circulation of solution loop.
Above-mentioned tandem type biabsorption device Cryo Refrigerator is in running, weak solution from solution decompression device 6 at first enters first absorber 2, first absorber 2 absorbs the cold-producing medium from the 3rd refrigerant heat exchanger 15 simultaneously, make the absorber 2 of winning be in lower operating pressure, mean that the pressure in the evaporimeter 13 also correspondingly reduces.By the characteristic of mixed non-azeotropic refrigerant as can be known: by the mode that is connected in series of two absorbers and solution pump, can increase evaporimeter 13 on the one hand and import and export the enthalpy difference of cold-producing medium, thereby improve the effectiveness of performance of the absorption Cryo Refrigerator integral body of above-mentioned tandem type; On the other hand, along with the reduction of evaporating pressure, the cryogenic temperature scope of the above-mentioned absorption Cryo Refrigerator of tandem type will further be extended to lower temperature range.Meanwhile, first absorber 2 and second absorber 3 state that in theory all can reach capacity has utilized the absorbability of weak solution more fully.
In the above-mentioned tandem type biabsorption device Cryo Refrigerator, generator 1 can be by renewable heat energy or low grade heat energy drivings such as solar energy, underground heat, industrial waste heat and waste heats, four heat exchangers (first refrigerant heat exchanger 10, second refrigerant heat exchanger 11, the 3rd refrigerant heat exchanger 15 and solution heat exchanger 7) can be shell and tube, bushing type, it also can be other form, its heat exchanger tube can be a common tube, also can be enhanced tube.The effect of three decompressors (the first cold-producing medium decompressor 12, the second cold-producing medium decompressor 14 and solution decompression device 6) is to allow the working medium puffing that flows through, and can be capillary, automatic or manual device.Two absorbers (first absorber 2 and second absorber 3) can be fountain, material filling type, falling film type, also can be the absorbers of other form.
In the above-mentioned tandem type biabsorption device Cryo Refrigerator, cold-producing medium is the mixture that HFC-134a (R134a) and difluoromethane (R32) are formed, and HFC-134a (R134a) is as high temperature refrigerant, and difluoromethane (R32) is as low-temperature refrigerant.(cold-producing medium also can be the mixture of HFC-134a (R134a) and fluoroform (R23) composition, and HFC-134a (R134a) is as high temperature refrigerant, and fluoroform (R23) is as low-temperature refrigerant; Perhaps, also can be the ternary mixture of HFC-134a (R134a), difluoromethane (R32) and fluoroform (R23) composition, wherein HFC-134a (R134a) is a high temperature refrigerant, and difluoromethane (R32) is middle temperature cold-producing medium, and fluoroform (R23) is a low-temperature refrigerant.)
In the above-mentioned tandem type biabsorption device Cryo Refrigerator, in first absorber 2 and second absorber 3, adopt N, dinethylformamide (DMF) organic solvent is absorbent (also can adopt tetraethylene glycol dimethyl ether (DMETEG) organic solvent is absorbent).
Above-mentioned tandem type biabsorption device Cryo Refrigerator obtains-60～-70 ℃ cryogenic temperature, and has 0.1～0.15 COP.
Claims (7)
1. a tandem type biabsorption device Cryo Refrigerator is characterized in that, comprises from overlapping refrigeration module and solution circulation module; Wherein, describedly comprise from the overlapping refrigeration module: condenser (8), vapour liquid separator (9), first refrigerant heat exchanger (10), second refrigerant heat exchanger (11), the first cold-producing medium decompressor (12), evaporimeter (13), the 3rd refrigerant heat exchanger (15) and the second cold-producing medium decompressor (14), described solution circulation module comprises: generator (1), solution decompression device (6), first absorber (2), first solution pump (4), second absorber (3), second solution pump (5) and solution heat exchanger (7);
Described in the overlapping refrigeration module, the outlet of described condenser (8) links to each other with the inlet of described vapour liquid separator (9), the outlet of the vapor phase refrigerant of described vapour liquid separator (9) successively with the high-pressure side passage of described first refrigerant heat exchanger (10), the high-pressure side passage of described second refrigerant heat exchanger (11), the described first cold-producing medium decompressor (12), described evaporimeter (13), the low-pressure side passage of described second refrigerant heat exchanger (11), the low-pressure side passage of described the 3rd refrigerant heat exchanger (15), the refrigerant inlet of described first absorber (2) links to each other; The liquid phase refrigerant outlet of described vapour liquid separator (9) links to each other with the high-pressure side passage of described the 3rd refrigerant heat exchanger (15), the described second cold-producing medium decompressor (14), the low-pressure side passage of described first refrigerant heat exchanger (10), the refrigerant inlet of described second absorber (3) successively;
In the described solution circulation module, the outlet of the weak solution of described generator (1) links to each other with the concentrated solution import of the weak solution wing passage of described solution heat exchanger (7), described solution decompression device (6), described first absorber (2), described first solution pump (4), described second absorber (3), described second solution pump (5), the concentrated solution wing passage of described solution heat exchanger (7), described generator (1) successively, and the refrigerant vapour of described generator (1) exports and links to each other with the inlet of described condenser (8).
2. tandem type biabsorption device Cryo Refrigerator as claimed in claim 1 is characterized in that: described cold-producing medium is binary or polynary mixed non-azeotropic refrigerant.
3. tandem type biabsorption device Cryo Refrigerator as claimed in claim 2, it is characterized in that: described cold-producing medium is the mixture of HFC-134a and difluoromethane composition or the mixture of HFC-134a and fluoroform composition, wherein HFC-134a is as high temperature refrigerant, and difluoromethane or fluoroform are as low-temperature refrigerant.
4. tandem type biabsorption device Cryo Refrigerator as claimed in claim 2, it is characterized in that: described cold-producing medium is the ternary mixture that HFC-134a, difluoromethane and fluoroform are formed, wherein HFC-134a is a high temperature refrigerant, difluoromethane is middle temperature cold-producing medium, and fluoroform is a low-temperature refrigerant.
5. tandem type biabsorption device Cryo Refrigerator as claimed in claim 1 is characterized in that: in described first absorber (2) and second absorber (3), absorbent is N, dinethylformamide or tetraethylene glycol dimethyl ether.
6. tandem type biabsorption device Cryo Refrigerator as claimed in claim 1 is characterized in that: described first refrigerant heat exchanger (10), second refrigerant heat exchanger (11), the 3rd refrigerant heat exchanger (15) and solution heat exchanger (7) are shell and tube or bushing type.
7. tandem type biabsorption device Cryo Refrigerator as claimed in claim 1 is characterized in that: the described first cold-producing medium decompressor (12), the second cold-producing medium decompressor (14) and solution decompression device (6) are capillary, automatic or manual device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100088930A CN102080899B (en) | 2011-01-17 | 2011-01-17 | Tandem double-absorber low-temperature refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100088930A CN102080899B (en) | 2011-01-17 | 2011-01-17 | Tandem double-absorber low-temperature refrigerator |
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| Publication Number | Publication Date |
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| CN102080899A true CN102080899A (en) | 2011-06-01 |
| CN102080899B CN102080899B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100088930A Expired - Fee Related CN102080899B (en) | 2011-01-17 | 2011-01-17 | Tandem double-absorber low-temperature refrigerator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374695A (en) * | 2011-10-24 | 2012-03-14 | 浙江大学 | Low-grade heat-driven high-efficiency ultralow-temperature refrigerating plant without moving part |
| CN102519166A (en) * | 2011-11-29 | 2012-06-27 | 李华玉 | First-class absorption heat pump with section absorption |
| CN102759218A (en) * | 2012-07-23 | 2012-10-31 | 浙江大学 | Auto-cascade low-temperature refrigerator of compressing, absorbing and coupling |
| CN106152595A (en) * | 2015-04-20 | 2016-11-23 | 北京燕凯设备制造有限公司 | Efficiently suction-type lithium bromide multifunctional cold and hot water unit |
| CN108662808A (en) * | 2017-03-27 | 2018-10-16 | 胡军勇 | A kind of two-stage superposition type absorption/compression composite refrigeration cycle system with engine waste heat and power link driving |
| CN114034142A (en) * | 2021-11-18 | 2022-02-11 | 中国科学院理化技术研究所 | Absorption type ice maker with precooling process |
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| CN1380525A (en) * | 2002-02-28 | 2002-11-20 | 浙江大学 | Refrigeration equipment with cryogenic refrigeration absorbent |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374695A (en) * | 2011-10-24 | 2012-03-14 | 浙江大学 | Low-grade heat-driven high-efficiency ultralow-temperature refrigerating plant without moving part |
| CN102519166A (en) * | 2011-11-29 | 2012-06-27 | 李华玉 | First-class absorption heat pump with section absorption |
| CN102519166B (en) * | 2011-11-29 | 2014-03-12 | 李华玉 | First-class absorption heat pump with section absorption |
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| CN106152595A (en) * | 2015-04-20 | 2016-11-23 | 北京燕凯设备制造有限公司 | Efficiently suction-type lithium bromide multifunctional cold and hot water unit |
| CN108662808A (en) * | 2017-03-27 | 2018-10-16 | 胡军勇 | A kind of two-stage superposition type absorption/compression composite refrigeration cycle system with engine waste heat and power link driving |
| CN114034142A (en) * | 2021-11-18 | 2022-02-11 | 中国科学院理化技术研究所 | Absorption type ice maker with precooling process |
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