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CN2856872Y - Lithium bromide double-effective absorbing, directly heating air conditioner for engine - Google Patents

Lithium bromide double-effective absorbing, directly heating air conditioner for engine Download PDF

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Publication number
CN2856872Y
CN2856872Y CNU2005200785376U CN200520078537U CN2856872Y CN 2856872 Y CN2856872 Y CN 2856872Y CN U2005200785376 U CNU2005200785376 U CN U2005200785376U CN 200520078537 U CN200520078537 U CN 200520078537U CN 2856872 Y CN2856872 Y CN 2856872Y
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pressure generator
engine
heat exchanger
input
evaporimeter
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Expired - Fee Related
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CNU2005200785376U
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Chinese (zh)
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林毅
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems
    • Y02B30/625Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration

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  • Sorption Type Refrigeration Machines (AREA)

Abstract

The utility model discloses a lithium bromide dual-effect absorption type direct heating air conditioner for engine, which belongs to an energy-saving refrigerating device for engine-driven vehicles and welded by the main equipments comprising a high pressure generator, a low pressure generator, a condenser, an evaporator, an absorber, a solution pump and a refrigerant pump and other auxiliary equipments. The problem to be solved is the low heating efficiency of the engine and the waste heat discharged from the engine and pollution to the environment, the high-performance direct-heating energy-saving air conditioner employs the high-temperature waste gas as the heat source and the dual-effect lithium bromide absorption technology as the base to replace the present refrigerator which uses steam compression mode and consume high power of the engine.

Description

Engine lithium bromide double effect absorption directly-heated air-conditioner
Technical field
It is thermal source that the utility model relates to a kind of high-temp waste gas that produces with engines such as automobiles, based on the engine of lithium bromide absorption refrigeration lithium bromide double effect absorption directly-heated air-conditioner.
Background technology
Automotive air conditioning device is based on the automobile engine outputting power at present, and based on the air-conditioning refrigeration plant of gas compression refrigeration, its refrigeration working medium mostly is R 12, R 22, R 134aDeng, its engine power consumes between 8%~20%.It is the aircondition of thermal source that other absorption automotive air conditioning device has with the engine cooling water; Or be thermal source with waste gas but be not the aircondition on basis for lithium bromide or economic benefits and social benefits absorption pattern or directly-heated mode.Current Vehicular air conditioner mostly is gas compressed air conditioner device, it is in working order the time, must consume 8%~20% of automobile engine power output on the one hand, reduced vehicle dynamic quality and mechanical handling, the discharging of a large amount of high temperature waste hot gas of producing in working order the time of automobile engine makes a large amount of effective heat energy be wasted again and brings to environment and pollutes and harm on the other hand.
The utility model content
The purpose of this utility model is to make full use of the heat energy that engine high-temperature waste gas such as automobile are had, reduce the power consumption of airconditions such as automobile, fuel such as saving automobile provide engine lithium bromide double effect absorption directly-heated air-conditioner efficiently rapid, comfortable economy simultaneously for users such as automobiles.
For realizing above-mentioned purpose, the utility model is taked following technical scheme: engine lithium bromide double effect absorption directly-heated air-conditioner, mainly be by high pressure generator, low pressure generator, condenser, choke valve, evaporimeter, cryogenic fluid pump, absorber, solution pump, low temperature heat exchanger, high-temperature heat exchanger, the energy adjustment by-passing valve, the blow-off tee device, car tail-gas filter, form between engine and compartment, the exhaust pipe of engine is communicated with the energy adjustment by-passing valve, energy adjustment by-passing valve output is connected with the high pressure generator input, another output of energy adjustment by-passing valve is communicated with the exhaust three-way valve input, the solution pump output is by low temperature heat exchanger and high-temperature heat exchanger is in parallel or the solution inlet port end of series connection high pressure generator and low pressure generator, the cryogen evaporation output of high pressure generator connects the input of low pressure generator, the refrigerant vapor output of low pressure generator and high pressure generator is connected the condenser input, the output of condenser connects the input of evaporimeter by choke valve, cryogenic fluid pump connects the shower of evaporimeter, refrigerant heat exchanger tube and compartment communication loop in the evaporimeter, cooling water output in the evaporimeter connects the input of absorber, and the dense lithium-bromide solution output of high pressure generator and low pressure generator is connected absorber solution input respectively behind high-temperature heat exchanger and low temperature heat exchanger.
Described energy adjustment by-passing valve is the waste-gas heat input control valve with air conditioner load and generator temperature control.
High pressure generator and low pressure generator are to immerse the shell-and-tube heat exchanger that combines with spray.
Condenser and evaporimeter are fin-tube type heat exchanger.
The utility model major technique innovative point is that the utility model automotive air conditioning device is is the absorption air-conditioning refrigeration plant of economic benefits and social benefits of lithium bromide of the direct drive-type of thermal source with the high temperature waste hot gas that the development and use automobile engine produces.The beneficial effects of the utility model are:
1, the utility model is compared with existing automotive air conditioning device and is had the function that makes full use of engine high-temperature waste gas used heat such as automobile, can make the heat exhaust more than 50% of engine fuels such as automobile be converted to the available energy of air-conditioning.
2, can increase the power fan-out capability of automobile etc., air-conditionings such as existing automobile generally need 8%~20% of consumption of engine power output, descend more than 70% and adopt the utility model that its air-conditioning power output is consumed.
3, do not use CFC, Environmental security, peace and quiet, vibration is little, running gear is few.
4, economic benefits and social benefits directly-heated type refrigerating efficiency height, refrigerating capacity abundance, rapid.
Description of drawings:
Fig. 1 is the utility model systematic schematic diagram (type in parallel).
Fig. 2 is the simple and easy flow chart of the utility model type in parallel
Fig. 3 is the simple and easy flow chart of the utility model series connection type
The specific embodiment
Operation principle of the present utility model is to utilize water to have ability that low-temperature evaporation (about 4 ℃) draw heat and bromize lithium concentrated solution the have extremely strong absorption water at low temperature steam refrigerating circulatory device for the basis in high vacuum jar, its groundwork flow process is shown in Fig. 2,3, and the utility model can need be selected its needed flow process by vehicle behavior.This explanation is described in detail Fig. 2 flow scheme in parallel, and Fig. 3 tandem plan flow process is omitted and only provides diagrammatic sketch.
As shown in Figure 1: to engine exhaust arm and house steward do insulation handle make its heat be concentrated to energy adjustment by-passing valve 11 before, energy adjustment by-passing valve 11 is the waste-gas heat input control valve with air conditioner load and generator temperature control, the major function of energy adjustment by-passing valve 11 is that each the module work loop of five kinds of regulating working conditions generators by automobile engine makes its normal operation, and the efficient refrigerant vapor that produces rapidly.Be by the economic benefits and social benefits directly-heated type lithium bromide absorbing type refrigeration host computer system of lithium bromide economic benefits and social benefits principle behind the energy adjustment by-passing valve 11 in conjunction with automobile exhaust used heat operating mode and the making of related process technical conditions, it mainly is by high pressure generator 1, low pressure generator 2, condenser 3, choke valve 4, evaporimeter 5, cryogenic fluid pump 6, absorber 7, solution pump 8, low temperature heat exchanger 9, high-temperature heat exchanger 10, energy adjustment by-passing valve 11, blow-off tee device 12, car tail- gas filter 13,15 form between engine 14 and compartment, engine 14 blast pipes are communicated with energy adjustment by-passing valve 11, energy adjustment by-passing valve 11 outputs are connected with high pressure generator 1 input, energy adjustment by-passing valve 11 another outputs are communicated with blow-off tee device 12 inputs, high pressure generator 1 is a shell-and-tube heat exchanger, adopt stainless steel integrated being welded, crucial heat exchanger components is the corronil tube bundle, and heat exchange mode adopts to immerse with the spray mode of combining and carries out.The solution inlet port end of solution pump 8 outputs or series connection high pressure generator 1 and low pressure generator 2 in parallel by low temperature heat exchanger 9 and high-temperature heat exchanger 10, the dense lithium-bromide solution output of high pressure generator 1 and low pressure generator 2 are connected absorber 7 solution inputs respectively behind high-temperature heat exchanger 10 and low temperature heat exchanger 9.High-temperature flue gas makes its part water evaporates for 64% the weak solution heating pumped into by solution pump 8 and is back to the water as refrigerant steam that absorption absorber 7 in forms in by evaporimeter 5 after being concentrated into concentrated solution about 58% through efficient heat-exchanging pipe family.High pressure generator 1 (about 10kpa) refrigerant vapor under vacuum condition imports low pressure generator 2 through refrigerant tube, refrigerant tube adopts welding manner to be connected with the high and low pressure generator, low pressure generator 2 is a shell-and-tube heat exchanger, housing is the stainless steel welding, interior tube bundle is stainless steel or corronil tube bundle, and heat exchange mode carries out for immersing with the spray mode of combining.The cryogen evaporation output of high pressure generator 1 connects the input of low pressure generator 2, the refrigerant vapor output of low pressure generator 2 and high pressure generator 1 is connected condenser 3 inputs, the output of condenser 3 connects the input of evaporimeter 5 by choke valve 4, cryogenic fluid pump 6 connects the shower of evaporimeter 5,15 communication loop between refrigerant heat exchanger tube in the evaporimeter 5 and compartment, the water as refrigerant steam output end in the evaporimeter 5 connects the input of absorber 7.The refrigerant vapour that is produced by high pressure generator 1, low pressure generator 2 enters condenser 3, in condenser 3, be condensed into water as refrigerant, inflow evaporator 5 after choke valve 4 throttlings, in evaporimeter 5 between refrigerant cycle pump circulated sprinkling is drawn by the compartment 15 thermic loads that transmit, make between the compartment 15 coolings reach the purpose of refrigeration simultaneously, condenser 3 and evaporimeter 5 are shell-and-tube or finned tube exchanger, are formed by stainless steel and corronil pipe welding heat, and choke valve 4 is made for stainless steel.Cryogenic fluid pump 6 is used for water as refrigerant is sprayed circulation, absorber 7 is the shell-and-tube heat exchanger through being welded by stainless steel and corronil, solution pump 8 mainly is to export weak solution to high pressure generator 1, low pressure generator 2 for double loop lithium-bromide solution pump, another loop sprays the refrigerant vapour that is produced by evaporimeter 5 to absorb to concentrated solution simultaneously, and then concentrated solution is diluted, dilution back solution is delivered to high pressure generator 1 and low pressure generator 2 through solution pump 8, evaporates (concentrating) thereby the circulation that produces refrigerant vapour realization refrigeration.Low temperature and high- temperature heat exchanger 9,10 mainly are to carry out preheating to pumped the weak solution of coming by absorber 7, utilize unit self waste heat to improve unit overall thermal efficient simultaneously, and it is shell-and-tube (or bushing type) heat exchanger that stainless steel and copper nickel pipe are welded.
Unit in parallel has that the energy-efficient technical characterstic that can utilize high temperature heat source in a big way is following to be its main flow process principle:
A bromize lithium dilute solution part enters high pressure generator 1, by the high temperature hot gas ebuillition of heated, evaporate its an amount of moisture that absorbs, the vapor form that is evaporated enters low pressure generator 2 pipes, heating another part bromize lithium dilute solution makes its explosive evaporation also emit an amount of water yield, then enters condenser 3 condensations respectively.
The steam that produce in the low pressure generator 2 enter be condensed cooling medium condensation in the device cooling tube of condenser 3, and the water as refrigerant that forms with high pressure generator 1 condensation converges after choke valve (pipe) 4 enters in evaporimeter 5 tube bundles.
The refrigerant medium is through evaporimeter 5 pipe families, sprayed the water as refrigerant spraying and sprinkling evaporation outside pipe by cryogenic fluid pump 6 and cooled off by draw heat.Refrigerant vapour enters absorber 7 and is sprayed in the outer dense lithium bromide water solution of absorber 7 pipes and absorb, and the heat in the refrigerant medium passes to absorber 7 by refrigerant vapour, and the medium that is absorbed in device 7 pipes is brought atmosphere (or external world) into and reached the refrigeration purpose.
It is thinning and lost resorbent ability that the bromize lithium concentrated solution that absorber is 7 li has absorbed moisture content, so having been delivered to generator 1,2 by solution pump goes to be heated concentrated, concentrated solution after 1,2 heating of two generators concentrate is returned absorber 7 and is sprayed, the refrigerant vapor that absorption is come from evaporimeter 5, the bromize lithium dilute solution after the absorption is sent into new again solution and the kind of refrigeration cycle of high and low pressure generator 1,2 beginnings respectively by solution pump.
Be generally and improve unit efficiency and performance, the dense lithium-bromide solution of high temperature in the high pressure generator 1 carries out heat exchange through the low temperature weak solution that high-temperature heat exchanger 10 and solution pump 8 go out, and makes the preheating once more of low temperature weak solution, makes the preliminary precooling of high temperature concentrated solution.The weak solution that enters low temperature heat exchanger 9 after the first cold concentrated solution that the hot bromize lithium concentrated solution of low pressure generator 2 and high-temperature heat exchanger 10 discharged is mixed and just go out pump is carried out heat exchange makes the further precooling of concentrated solution, make the weak solution that pumps by first preheating, this heat exchange each other further improves the solution cycle efficieny.
In double-effect lithium bromide absorption type directly-heated main frame except that undertaken by its flow process and principle work and the circulation, also must provide vacuum necessary environmental pressure and anticorrosion, safe operation measure to unit, this comprises the air extractor and relevant automatic control and the safe precaution measure and the device of necessary vacuum extractor (vavuum pump), pump drainage incoagulable gas, these technology have been mature technology, do not do detailed description in the utility model explanation.

Claims (4)

1, engine lithium bromide double effect absorption directly-heated air-conditioner, mainly be by high pressure generator (1), low pressure generator (2), condenser (3), choke valve (4), evaporimeter (5), cryogenic fluid pump (6), absorber (7), solution pump (8), low temperature heat exchanger (9), high-temperature heat exchanger (10), energy adjustment by-passing valve (11), blow-off tee device (12), car tail-gas filter (13), (15) are formed between engine (14) and compartment, it is characterized in that: engine (14) blast pipe is communicated with energy adjustment by-passing valve (11), energy adjustment by-passing valve (11) output is connected with high pressure generator (1) input, another output of energy adjustment by-passing valve (11) is communicated with the exhaust three-way valve input, solution pump (8) output is by low temperature heat exchanger (9) and high-temperature heat exchanger (10) is in parallel or the solution inlet port end of series connection high pressure generator (1) and low pressure generator (2), the cryogen evaporation output of high pressure generator (1) connects the input of low pressure generator (2), the refrigerant vapor of low pressure generator (2) and high pressure generator (1) is connected condenser (3) input, the output of condenser (3) connects the input of evaporimeter (5) by choke valve (4), cryogenic fluid pump (6) connects the shower of evaporimeter (5), refrigerant heat exchanger tube and compartment (15) communication loop in the evaporimeter (5), water as refrigerant steam output end in the evaporimeter (5) connects the input of absorber (7), and the dense lithium-bromide solution output of high pressure generator (1) and low pressure generator (2) is connected absorber (7) solution input respectively behind high-temperature heat exchanger (10) and low temperature heat exchanger (9).
2, engine as claimed in claim 1 is characterized in that: the waste-gas heat input control valve of described energy adjustment by-passing valve (11) for controlling with air conditioner load and generator temperature with lithium bromide double effect absorption directly-heated air-conditioner.
3, engine as claimed in claim 1 lithium bromide double effect absorption directly-heated air-conditioner,, it is characterized in that: high pressure generator (1) and low pressure generator (2) are the shell-and-tube heat exchanger that immerses and spray combines.
4, engine as claimed in claim 1 lithium bromide double effect absorption directly-heated air-conditioner, it is characterized in that: condenser (3) and evaporimeter (5) are fin-tube type heat exchanger.
CNU2005200785376U 2005-03-30 2005-03-30 Lithium bromide double-effective absorbing, directly heating air conditioner for engine Expired - Fee Related CN2856872Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2005200785376U CN2856872Y (en) 2005-03-30 2005-03-30 Lithium bromide double-effective absorbing, directly heating air conditioner for engine

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102261761A (en) * 2011-06-22 2011-11-30 河南科技大学 Energy-accumulating lithium bromide air conditioner using waste heat of tail gas of engine and generator unit of lithium bromide air conditioner
CN102364259A (en) * 2011-11-03 2012-02-29 北京理工大学萍乡高新技术研究院 Method and system for independently controlling temperature and humidity of automobile air conditioner
CN103968595A (en) * 2014-05-15 2014-08-06 上海理工大学 Absorption type automotive air conditioner
CN106839514A (en) * 2016-12-22 2017-06-13 张承虎 A kind of wet waste gas total heat recovery system of the absorption type heat that need not regenerate thermal source
CN108377955A (en) * 2018-02-11 2018-08-10 山东商业职业技术学院 A kind of fresh and alive transport vehicle of aquatic products

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102261761A (en) * 2011-06-22 2011-11-30 河南科技大学 Energy-accumulating lithium bromide air conditioner using waste heat of tail gas of engine and generator unit of lithium bromide air conditioner
CN102261761B (en) * 2011-06-22 2013-02-06 河南科技大学 Energy-accumulating lithium bromide air conditioner using waste heat of tail gas of engine and generator unit of lithium bromide air conditioner
CN102364259A (en) * 2011-11-03 2012-02-29 北京理工大学萍乡高新技术研究院 Method and system for independently controlling temperature and humidity of automobile air conditioner
CN103968595A (en) * 2014-05-15 2014-08-06 上海理工大学 Absorption type automotive air conditioner
CN106839514A (en) * 2016-12-22 2017-06-13 张承虎 A kind of wet waste gas total heat recovery system of the absorption type heat that need not regenerate thermal source
CN106839514B (en) * 2016-12-22 2019-04-16 张承虎 A kind of wet exhaust gas total heat recovery system of absorption type heat no longer needing to heat source
CN108377955A (en) * 2018-02-11 2018-08-10 山东商业职业技术学院 A kind of fresh and alive transport vehicle of aquatic products
CN108377955B (en) * 2018-02-11 2021-10-01 山东商业职业技术学院 Aquatic product fresh and alive transport vehicle

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070110

Termination date: 20130330