CN100424444C - Multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy - Google Patents
Multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy Download PDFInfo
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- CN100424444C CN100424444C CNB2004100706995A CN200410070699A CN100424444C CN 100424444 C CN100424444 C CN 100424444C CN B2004100706995 A CNB2004100706995 A CN B2004100706995A CN 200410070699 A CN200410070699 A CN 200410070699A CN 100424444 C CN100424444 C CN 100424444C
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- 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
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- 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
Abstract
The present invention relates to a multiple effective absorption type gas, liquid and solid circular spray refrigeration system by using heat energy, which uses heat energy of which the temperature is above 65 DEGC to generate refrigeration. The refrigeration system comprises a heat source 1, a circulating heat collector 2, one or more generators 3, 6, a condensation heat exchanger 8, a throttle valve (expansion valve) 10, a spray evaporator 12, a spray absorber 14, an absorption cooling heat exchanger 16, an outer refrigeration evaporator 9, two solution pumps 13, 15, a heat return heat exchanger 19 and a plurality of pipelines, wherein the generator is a heat exchange device used for transferring heat of the heat source to mixing matter in the system and can utilize the gas, liquid and various irradiating heat sources, of which the temperatures are above 65 DEGC; the spray absorber is a device used for absorbing back refrigerant, solid matter is arranged in the spray absorber, is arranged in multiple layers and performs the functions of increasing absorption area and accelerating absorption reaction in absorption reaction; the spray evaporator is a device used for causing the refrigerant to generate phase transition and evaporate, and solid matter is arranged in the spray evaporator and arranged in multiple layers. The outer refrigeration evaporator is a heat exchange device used for absorbing external heat for refrigeration, and all of an air conditioner, a refrigerator, an ice machine, etc. can be used as the outer refrigeration evaporator. The system of the present invention has the advantages of small volume, strong vibration resistance, high refrigeration efficiency, low grade heat source utilization, etc.
Description
Technical field
What the present invention relates to is to utilize heat energy to produce the absorption system of refrigeration, belongs to thermal refrigerating, sorption type refrigerating technology field.
Background technology
Existing Absorption Refrigerator mainly contains two classes: ammonia water absorbing refrigerator and lithium-bromide absorption-type refrigerating machine.The required heat source temperature of ammonia water absorbing refrigerator is about 150 ℃, can obtain cold below 0 ℃, and minimum evaporating temperature can reach-30 ℃.More application is arranged in petrochemical industry, because the ammoniacal liquor desorption process needs rectifying, so equipment is complicated, the steel consumption amount is bigger.Lithium-bromide absorption-type refrigerating machine does not need rectifying, operating pressure very low (vacuum), and required heat source temperature is more than 80 ℃, evaporating temperature must be more than 0 ℃.Because lithium bromide has stronger corrosivity, system equipment must adopt copper and stainless steel material, and equipment is to anticorrosive and vacuum-resistant requirement height.The driving heat source of mono-potency lithium bromide refrigeration machine is a low-grade heat source, and its refrigerating efficiency COP is 0.4～0.6, if select direct combustion machine or steam double-effect refrigeration machine, its refrigerating efficiency COP can reach 1～1.31.But there is the big problem of system bulk in lithium-bromide absorption-type refrigerating machine, equipment and materials more expensive (copper and stainless steel), system is complicated, and system can not antivibration, levelness requires high, apparatus and process requires high (system is a high vacuum state), makes suction-type lithium bromide and ammonia water absorbing refrigerator all can not realize miniaturization in commerce, and lithium bromide absorption system cryogenic temperature can not be lower than below 0 ℃.
Summary of the invention
Little in order to realize the thermal refrigerating system bulk, the refrigerating efficiency height is controlled purposes such as easy, and the present invention proposes to utilize the solid absorption heat energy refrigeration machine of cyclic spraying multiple-effect of gas-liquid of waste heat.This system mainly comprises a cycling hot collector 2,3,6, one spraying evaporators 12 of one or more generators, 13,15,1 condensing heat exchangers 8 of 14,2 solution pumps of a spray absorber, one absorbs 9, one Recuperative heat exchangers 19 of 16, one outer refrigerating evaporators of cooling heat exchanger.Wherein generator is to transmit the heat-exchanger rig that the thermal source heat is given compounding substances in the system, and generator can utilize gas, liquid and the various radiant heat source more than 65 ℃.Spray absorber is that cold-producing medium is absorbed the device of returning, and solid matter is arranged in it, and solid matter divides multilayer to arrange, plays the effect that increases absorption area and accelerate absorption reaction speed in absorption reaction.Spraying evaporator is to make cold-producing medium produce the device of phase transformation evaporation, and solid matter is arranged in it, and solid matter divides multilayer to arrange, plays the effect that increases the evaporation mass transfer area and accelerate evaporation rate.
The refrigeration system that the present invention proposes, its technical characterictic is that condensing heat exchanger 8, the absorption cooling heat exchanger 16 of cooling absorber, Recuperative heat exchanger 19, the thermal cycle collector 2 of cooling refrigeration agent all adopt compact heat exchange structure.Because refrigeration system can be to be malleation, also can be negative pressure, system's internal pressure is determined character by refrigeration working medium in the system.
The refrigeration system that the present invention proposes, its technical characterictic is to enter in the spray absorber 14 through gas connection pipe after the cold-producing medium in the spraying evaporator 12 becomes gaseous state by liquid state, is absorbed agent solution and absorbs.Gas connection pipe can be a metal tube, also can be the compression resistance flexible pipe.This structure can guarantee that absorbent solution can not fled the spraying evaporator 12 from spray absorber 14 in the time of system vibration, and cold-producing medium can not fled the spray absorber 14 from spraying evaporator 12.Spray absorber 14 bottoms are connected with solution pump 15 inlets, and solution pump 15 inlets divide two-way, and the circulation line 17 of leading up to is connected with absorption cooling heat exchanger 16, and another road is communicated with Recuperative heat exchanger 19.
The employed refrigeration working medium of refrigeration system that the present invention proposes is to be multiple compounding substances composition, and compounding substances is made up of a kind or 2 kinds of gas, a kind or 2 kinds of liquid and a kind of solid.Solid matter is present in spray absorber 14 and the spraying evaporator 12, also can leave in the generator 3.
The refrigeration system that the present invention proposes is according to the temperature difference of utilizing thermal source, can adopt multiple-effect combination generator form to avoid the solution crystallization problem, if heat source temperature is lower, then system is an one generator single-effective absorption refrigeration system, heat source temperature is higher, then system adopts double-generator double effect absorption refrigeration system, or multigenerator multiple-effect absorption system.
The refrigeration system that the present invention proposes is compared with existing absorption techniques, have following outstanding effect: the evaporimeter of the refrigeration system that the present invention proposes is the cyclic spraying evaporimeter of built-in solid, absorber is the cyclic spraying absorber of built-in solid, and evaporation rate and infiltration rate are accelerated; The generator of system, condensing heat exchanger, absorption cooling heat exchanger, outer refrigerating evaporator adopt the high compact heat exchanger of the coefficient of heat transfer, and compact conformation, heat and mass are effective; The system pipeline resistance is little, and flow velocity is big, and system's evaporation effect is good; System's anti-vibration can move in the environment that jolts; The refrigerating efficiency COP of system height, manufacturing cost is lower.
Description of drawings
Fig. 1 is the solid cyclic spraying double effect absorption thermal refrigerating system diagram of gas-liquid.
Fig. 2 is the solid cyclic spraying single-effective absorption thermal refrigerating system diagram of gas-liquid.
The specific embodiment
Further specify the specific embodiment of the present invention below in conjunction with accompanying drawing 1:
System of the present invention mainly comprises thermal source 1, cycling hot collector 2, generator 3 and 6, condensing heat exchanger 8, choke valve (expansion valve) 10, spraying evaporator 12, spray absorber 14, absorbs cooling heat exchanger 16, outer refrigerating evaporator 9, solution pump 13,15, Recuperative heat exchanger 19 and some pipelines formation.
The heat of gas, liquid or radiant heat source 1 enters high pressure generator 3 by cycling hot collector 2, and carries out heat exchange with high pressure generator 3.The mixed working fluid that flows is equipped with to solution in high pressure generator 3 inside, refrigerant gas was isolated in absorbed inside agent desorb after generator was heated, the mix refrigerant gas of high temperature enters low pressure generator 6 by refrigerant tube 4 occurred frequently, heating flows out into the solution of low pressure generator 3 from high pressure generator 3 sides concentrated solution pipe 5 occurred frequently, makes the solution absorbent continue to parse refrigerant gas.The refrigerant gas that parses enters condensing heat exchanger 8 by a low refrigerant tube 7 and cools off, and refrigerant gas enters in the spraying evaporator 12 through choke valve or expansion valve 10 after becoming liquid by gas.Absorbent concentrated solution after the desorb flows out from low pressure generator 6 sides and enters Recuperative heat exchanger 19, after the backheat heat exchange, higher temperatures absorbent concentrated solution becomes lower temperature absorbent concentrated solution, lower temperature absorbent concentrated solution is flowed into by spray absorber 14 side bottom, there is solid matter spray absorber 14 inside, the absorbent concentrated solution is circulated to spray absorber 14 upper ends by solution pump 15 parts, and a part enters Recuperative heat exchanger 19 and flows into high pressure generator 3.Sprayed by circulation line 17 to spray absorber 14 upper end absorbent concentrated solutions, carry out absorption refrigeration agent reaction again in the spray process, concentrated solution becomes weak solution, and because exothermic heat of reaction, absorbent weak solution temperature raises, the absorbent weak solution of higher temperature absorbs cooling heat exchanger 16 through one in solution pump 15 cyclic processes, absorb cooling heat exchanger 16 and by air-cooled or water-cooled the absorption reaction heat exchange is come out.Cold-producing medium in the spraying evaporator 12 enters in the spray absorber 14 through gas connection pipe after becoming gaseous state by liquid state, is absorbed agent solution and absorbs.
Condensing heat exchanger 8, absorption cooling heat exchanger 16 can adopt whole plate type heat exchanger, detachable board-like heat exchanger, plate-fin heat exchanger, fin-tube heat exchanger, wave-fin coil heat exchanger, tubulation shell-and-tube heat exchanger etc., and cooling medium can be air or liquid medium.
Further specify the specific embodiment of the present invention below in conjunction with accompanying drawing 2:
The heat of gas, liquid or radiant heat source 1 enters generator 3 by cycling hot collector 2, and carries out heat exchange with generator 3.Refrigerant gas is isolated in the generator 3 back absorbed inside agent desorb of being heated, and the mix refrigerant gas of high temperature enters condensing heat exchanger 8 by refrigerant tube 4 and cools off, and enters in the spraying evaporator 12 through choke valve or expansion valve 10 after becoming liquid.Flow out solution from generator 3 side concentrated solution pipes 5 and enter Recuperative heat exchanger 19, after the backheat heat exchange, higher temperatures absorbent concentrated solution becomes lower temperature absorbent concentrated solution, lower temperature absorbent concentrated solution is flowed into by spray absorber 14 side bottom, there is solid matter spray absorber 14 inside, the absorbent concentrated solution is circulated to spray absorber 14 upper ends by solution pump 15 parts, and a part enters Recuperative heat exchanger 19 and flows into generator 3.Sprayed by circulation line 17 to spray absorber 14 upper end absorbent concentrated solutions, carry out absorption refrigeration agent reaction again in the spray process, concentrated solution becomes weak solution, and because exothermic heat of reaction, absorbent weak solution temperature raises, the absorbent weak solution of higher temperature absorbs cooling heat exchanger 16 through one in solution pump 15 cyclic processes, absorb cooling heat exchanger 16 and by air-cooled or water-cooled the absorption reaction heat exchange is come out.Cold-producing medium in the spraying evaporator 12 enters in the spray absorber 14 through gas connection pipe after becoming gaseous state by liquid state, is absorbed agent solution and absorbs.
Claims (5)
1. one kind is utilized heat energy to produce the multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy that freezes, comprise thermal source (1), a cycling hot collector (2), one or more generators (3,6), a condensing heat exchanger (8), a choke valve (10), a spraying evaporator (12), a spray absorber (14), one absorbs cooling heat exchanger (16), an outer refrigerating evaporator (9), first solution pump (13), second solution pump (15), a Recuperative heat exchanger (19) and some pipelines, it is characterized in that: spraying evaporator (12) is the cyclic spraying evaporimeter of the solid of built-in catalytic action, spray absorber (14) is the cyclic spraying absorber of the solid of built-in catalytic action, there is tube connector (20) to be connected between spraying evaporator (12) and the spray absorber (14), first solution pump is connected with the spraying evaporator bottom, and second solution pump is connected with the spray absorber bottom.
2. according to the described multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy of claim 1, it is characterized in that: the generator of single-action system is one, and the generator of economic benefits and social benefits system is two, and the generator of three effect systems is three.
3. according to claim 1 or 2 described multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy, it is characterized in that: refrigeration working medium is to forming for multiple compounding substances, compounding substances is made up of a kind or 2 kinds of gas, a kind or 2 kinds of liquid and a kind of solid that plays catalytic action, and solid matter is present in spraying evaporator (12) and the spray absorber (14).
4. according to claim 1 or 2 described multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy, it is characterized in that: refrigerating capacity is controlled by first solution pump (13), the rotation speed regulating and controlling of second solution pump (15), first solution pump (13) and second solution pump (15) adopt the twin shaft solution pump, and the rotating ratio of first solution pump (13) and second solution pump (15) is 0.1～10.
5. according to the described multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy of claim 1, it is characterized in that: spray absorber (14) bottom is connected with second solution pump (15) inlet, second solution pump (15) inlet divides two-way, the circulation line (17) of leading up to is connected with absorption cooling heat exchanger (16), and another road is communicated with Recuperative heat exchanger (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100706995A CN100424444C (en) | 2004-07-30 | 2004-07-30 | Multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100706995A CN100424444C (en) | 2004-07-30 | 2004-07-30 | Multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy |
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| CN1727810A CN1727810A (en) | 2006-02-01 |
| CN100424444C true CN100424444C (en) | 2008-10-08 |
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| CNB2004100706995A Expired - Fee Related CN100424444C (en) | 2004-07-30 | 2004-07-30 | Multiple effective absorption type gas, liquid and solid circular sprinkled refrigeration system by using heat energy |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016839B (en) * | 2016-06-28 | 2019-04-19 | 北京联力源科技有限公司 | Absorption heat pump and its generator and round-robin method |
| CN105987544A (en) * | 2016-06-28 | 2016-10-05 | 北京联力源科技有限公司 | Absorption heat pump and evaporator and method thereof |
| CN106016812B (en) * | 2016-06-28 | 2019-08-16 | 北京联力源科技有限公司 | Absorption heat pump and its absorber and method |
| CN106091477B (en) * | 2016-06-28 | 2019-08-16 | 北京联力源科技有限公司 | Absorption heat pump and its condenser and method |
| CN114110841B (en) * | 2021-11-15 | 2023-02-28 | 珠海格力电器股份有限公司 | Absorption type refrigeration air-conditioning system and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2611607A1 (en) * | 1987-03-06 | 1988-09-09 | Sterc Maissiat Sa | Air-conditioning system for vehicles propelled by an internal combustion engine |
| JPH08313103A (en) * | 1995-05-24 | 1996-11-29 | Matsushita Electric Ind Co Ltd | Absorbing type heat pump device |
| CN2256998Y (en) * | 1996-04-16 | 1997-06-25 | 陆朝强 | Split-type lithium bromide refrigerator |
| JPH09318184A (en) * | 1996-05-27 | 1997-12-12 | Mitsubishi Heavy Ind Ltd | Absorption type refrigerating machine |
| CN1487254A (en) * | 2002-09-30 | 2004-04-07 | 中国科学技术大学 | Method of adding additive into absorbing lithium bromide refrigerator |
| CN2773566Y (en) * | 2004-07-30 | 2006-04-19 | 龚文浩 | Spraying multi-effect absorbing heat-energy refrigerator with gas-liquid-solid circulation |
-
2004
- 2004-07-30 CN CNB2004100706995A patent/CN100424444C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2611607A1 (en) * | 1987-03-06 | 1988-09-09 | Sterc Maissiat Sa | Air-conditioning system for vehicles propelled by an internal combustion engine |
| JPH08313103A (en) * | 1995-05-24 | 1996-11-29 | Matsushita Electric Ind Co Ltd | Absorbing type heat pump device |
| CN2256998Y (en) * | 1996-04-16 | 1997-06-25 | 陆朝强 | Split-type lithium bromide refrigerator |
| JPH09318184A (en) * | 1996-05-27 | 1997-12-12 | Mitsubishi Heavy Ind Ltd | Absorption type refrigerating machine |
| CN1487254A (en) * | 2002-09-30 | 2004-04-07 | 中国科学技术大学 | Method of adding additive into absorbing lithium bromide refrigerator |
| CN2773566Y (en) * | 2004-07-30 | 2006-04-19 | 龚文浩 | Spraying multi-effect absorbing heat-energy refrigerator with gas-liquid-solid circulation |
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| CN1727810A (en) | 2006-02-01 |
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Owner name: BEIJING QINGLUAN SHENGYUAN TECHNOLOGY DEVELOPMENT Free format text: FORMER OWNER: GONG WENHAO Effective date: 20121214 Free format text: FORMER OWNER: LI HEYI Effective date: 20121214 |
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Free format text: CORRECT: ADDRESS; FROM: 100084 HAIDIAN, BEIJING TO: 100029 CHAOYANG, BEIJING |
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Effective date of registration: 20121214 Address after: 100029, Beijing, Shaoyaoju, Chaoyang District, North 101, 11, 14, 2, 1701 room Patentee after: Beijing Shengyuan qingluan Technology Development Co. Ltd. Address before: 100084, No. 121, building 4, Northwest Community, Tsinghua University, Beijing Patentee before: Gong Wenhao Patentee before: Li Heyi |
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Granted publication date: 20081008 Termination date: 20190730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |