CN101504224B - Solar energy and engine exhaust heat dual-power refrigeration air conditioner for vehicle - Google Patents
Solar energy and engine exhaust heat dual-power refrigeration air conditioner for vehicle Download PDFInfo
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- CN101504224B CN101504224B CN2009100968238A CN200910096823A CN101504224B CN 101504224 B CN101504224 B CN 101504224B CN 2009100968238 A CN2009100968238 A CN 2009100968238A CN 200910096823 A CN200910096823 A CN 200910096823A CN 101504224 B CN101504224 B CN 101504224B
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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
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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Abstract
The invention relates to an automotive solar energy and engine waste heat dual-energy refrigeration air conditioner, in particular to an air conditioner device by comprehensively using solar energy and automotive engine waste heat. The air conditioner comprises an absorber, a solution pump, a low-temperature heat exchanger, a high-temperature heat exchanger, a high-pressure generator, a low-pressure generator, a condenser, an evaporator, a refrigerant pump and an air-cooling radiator, and is characterized by also comprising an interior heat exchanger connected with a heat exchange coil arranged in the evaporator, a heat energy storage which is connected and exchanges heat with the high-pressure generator through a heat-transfer pipe and a heat pump arranged in the heat-transfer pipe. Solar energy collected by a solar energy thermal collector arranged on the top of an automobile and engine waste heat collected from engine exhaust pipe and engine radiation water tank input heat into the inside of the heat energy storage through pipelines. The refrigeration part of the air conditioner uses water as a refrigerant and a solution of lithium bromide as an absorbent for refrigeration. The air conditioner reasonably uses solar energy and engine waste heat in automotive air conditioner, and is characterized by economy, energy conservation, no environmental pollution and the like.
Description
Affiliated technical field
The invention belongs to a kind of car air-conditioner, especially relate to a kind of refrigerating air conditioning device that fully utilizes solar energy and automobile engine residual heat.
Background technology
Along with the fast development of Domestic Automotive Industry, automobile and people's lives are got in touch more and more tightr, and the demand to petroleum-based energy also increases day by day thus, and is also increasing to the influence of ecological environment.Such as in summer, to consume the fuel oil more than 20% when starting air-conditioning more, along with temperature raises, many clans owning cars feel that all the gasoline on air-conditioning takes straight line to be increased; The exhaust emissions that automobile is a large amount of has caused the tropical island effect in the city; Because the city heating need consume the more energy and carry out the indoor refrigeration of building.
When starting an automobile, the heat of engine producing is enough to destroy automobile itself, as it is bigger overheated harmfulness to occur, will influence original performance and can cause engine power to descend, quickens unable, oil consumption increase, problems such as malcombustion; And piston and cylinder caused damage.For preventing engine overheat, a cover cooling system has been installed on the automobile, generally adopt the cooling way of the combination of inner and outside: the wind-force during first utilization is gone, cool off engine from the outside; It two is to utilize liquid, and cooling is a cooling water tank like water-cooled internally, and also can overheated boiling damage at cruel summer cooling water tank.The practical efficient of automobile engine is generally 35%～40%, and about 25% of the heat output of fuel water that is cooled is taken away, and 35%～45% is taken away by tail gas, has just wasted a lot of heats after these waste heats are dispersed in the air.Automobile engine to exhaust pressure is big, and temperature is high, the highlyest can reach 600 ℃～700 ℃, during idling 400 ℃; The temperature of automobile engine cooling water tank when operate as normal be more than 90 ℃, so they all are the heat energy that has than high-grade, has value of exploiting and utilizing.
In addition; Arrive whenever summer, the open air just becomes a hot stove, and burning sun shines automobile case to such an extent that boiling hot especially when stopping, the refrigeration raises vehicle interior temperature rapidly; If hot weather is refrigeration not; Vehicle interior temperature can reach more than 60 ℃, and the general at present mode of blocking that adopts is kept off amount of solar heat outside car, is very big waste for solar energy.
At present more existing researchs that engine exhaust heat is used to freeze; Such as " motor car engine residual heat using device ", " a kind of suction-type lithium bromide economic benefits and social benefits automotive residual heat refrigeration machine " of CN2763755Y of Chinese patent CN201065058Y, " vehicle-mounted engine exhaust-powered refrigerator " of CN2800180Y or the like; If but only utilize waste heat under burning sun, possibly still can not satisfy the demand; If can be with these engine exhaust heats and the comprehensive utilization of solar energy active collection; Especially waste heat source is used for freezing in the car effect that generation is got twice the result with half the effort.
Summary of the invention
The objective of the invention is to solve above-mentioned automobile engine residual heat waste problem; A kind of aircondition that solar energy and two kinds of energy of engine exhaust heat carry out refrigeration in the car that fully utilizes is provided; And adopt the double-effect lithium bromide refrigeration unit, have economy, energy-conservation, non-environmental-pollution, rationally utilize used heat, protection engine to prevent characteristics such as overheated.
A kind of automobile is with solar energy and engine exhaust heat dual intensity refrigeration air-conditioner; It comprises absorber, solution pump, low temperature heat exchanger, high-temperature heat exchanger, high pressure generator, low pressure generator, condenser, evaporimeter, cryogenic fluid pump and air-cooled radiator; It is characterized in that: further comprising with evaporimeter in heat exchanger in the car that is connected of heat exchange coil, be connected and the heat energy accumulator of heat exchange and the heat pump that on heat-transfer pipe, is provided with the solar energy of collecting from the solar thermal collector that is installed in automobile top and can through pipeline heat be imported in the heat energy accumulator by these two kinds of heat energy from the engine exhaust heat that the exhaust pipe of engine, engine radiating water tank are collected with high pressure generator through heat-transfer pipe.
Above-mentioned solar thermal collector adopts heat pipe vacuum tube hot collector, and its water inlet pipe and water outlet pipe is communicated with the heat energy accumulator, and a circulating pump is housed on the water inlet pipe, and this just can realize the cycling hot exchange between solar thermal collector and the heat energy accumulator.
The above-mentioned exhaust pipe of engine is surrounded by a heat exchanging water-jacket outward, and heat exchanging water-jacket's water inlet pipe and water outlet pipe is communicated with the interior heat exchange coil of heat energy accumulator, and a heat exchange pump is housed on its outlet pipe, and this just can realize the heat exchange between the exhaust pipe of engine and the heat energy accumulator.
Have heat exchange coil to be communicated with through a circulating pump with the interior heat exchange coil of heat energy accumulator in the above-mentioned engine radiating water tank, this just can realize the heat exchange between cooling water tank and the heat energy accumulator.
The course of work of this dual intensity refrigeration air-conditioner is following:
When driving, engine operation produces high temperature automotive tail gas, and the cooling water tank temperature increases; The high-temperature gas heat is delivered in the heat energy accumulator through heat exchanging water-jacket, outlet pipe, heat exchange pump, heat exchange coil in the exhaust pipe of engine; Heating agent liquid temp in the heat energy accumulator is raise, and then heat-transfer pipe transfer working medium in heat temperature is raise, through the heat pump effect; The heat-transfer working medium temperature is further raise, come heating high-pressure generator inner refrigerant to freeze to obtain higher temperature.
When solar radiation is arranged; The solar energy that solar thermal collector is collected raises its temperature the circulation of the heating agent liquid in heat energy accumulator heating through water inlet pipe and water outlet pipe, circulating pump; And then heat-transfer pipe transfer working medium in heat temperature is raise; Through the heat pump effect, the heat-transfer working medium temperature is further raise, come heating high-pressure generator inner refrigerant to freeze to obtain higher temperature.
The refrigerating part of this air conditioning for automobiles is that profit uses water as cold-producing medium, utilizes lithium-bromide solution to freeze as absorbent, and the cold air that makes gets in the compartment through heat exchanger in the car.
The invention has the beneficial effects as follows: 1) solar energy and engine exhaust heat can be realized refrigeration or heating jointly when driving, guarantee the required energy of refrigeration system, and effectively save the gasoline energy, and consumption oil is not realized the air-conditioning zero cost in addition; 2) collect the heat that engine exhaust heat can make full use of automobile engine tail gas and cooling water tank; The cooling that so both can realize engine and cooling water tank avoids engine and cooling water tank overheated; Can reduce the vehicle exhaust temperature again; Reduce exhaust emissions, reduce thermal pollution, reduce the tropical island effect in city; 3) collect solar energy and freeze, meeting has the solar time needs demand of freezing more, and when stopping, can not need to consume in addition oil and carry out solar refrigeration and prevent that vehicle interior temperature is too high; 4) utilization of heat pump can improve the temperature of waste heat energy and solar energy, plays the effect that improves air-conditioning work efficient; 5) adopt the double-effect lithium bromide refrigeration unit, not only can freeze but also satisfy the heating in winter, and the environmental pollution when not having freon refrigeration.
Description of drawings
Fig. 1 is the systematic schematic diagram of automobile of the present invention with solar energy and engine exhaust heat dual intensity refrigeration air-conditioner;
Fig. 2 is a structure diagram of the present invention.
Label declaration in each width of cloth accompanying drawing is following: the 1-solar thermal collector; The 1a-circulating pump; The 2-heat pump; 3-heat energy accumulator; The 3a-heat-transfer pipe; 3b-first heat exchange coil; 3c-second heat exchange coil; The 4-heat exchanging water-jacket; The 5-exhaust pipe of engine; 6-heat exchange pump; The 7-cooling water tank; The 7a-circulating pump; The 8-low temperature heat exchanger; The 9-high-temperature heat exchanger; The 10-high pressure generator; The 11-low pressure generator, 12-absorber, 13-solution pump, 14-cryogenic fluid pump, 15-evaporimeter, 15a, 15b-transfer valve, 16-condenser, heat exchanger in the 17-air-cooled radiator, 18-car.
The specific embodiment:
According to accompanying drawing the particular content of this automobile with solar energy and engine exhaust heat dual intensity refrigeration air-conditioner is described in detail below.
As illustrated in fig. 1 and 2; This air conditioning for automobiles comprises absorber 12, solution pump 13, low temperature heat exchanger 8, high-temperature heat exchanger 9, high pressure generator 10, low pressure generator 11, condenser 16, air-cooled radiator 17, evaporimeter 15 and cryogenic fluid pump 14; This is the refrigerating part of air-conditioning; It is that profit uses water as cold-producing medium, utilizes lithium-bromide solution to freeze as absorbent.Absorber 12, evaporimeter 15 and condenser 16 (in Fig. 2, being added with a great circle in their periphery) are contained in the vacuum cavity, guarantee carrying out smoothly of lithium bromide refrigerating process to keep low pressure.
This air conditioning for automobiles also comprises heat energy accumulator 3 and heat pump 2; Also have two ends to get into the heat-transfer pipe 3a in heat energy accumulator 3 and the high pressure generator 10 respectively; It realizes that both connect and heat exchange; Heat pump 2 is arranged on the heat-transfer pipe 3a between the two, improves with the temperature with transfer heat, further improves air conditioner refrigerating efficient.This is the thermal source part of air-conditioning; Its uses two kinds of input heat energy: be installed in solar energy that the solar thermal collector 1 of automobile top collects and the engine exhaust heat collected from the exhaust pipe of engine 5, engine radiating water tank 7 can, these two kinds of heat energy are imported heat in the heat energy accumulator 3 through pipeline.
This air conditioning for automobiles also comprises heat exchanger 18 in the car, and heat exchanger 18 comprises heat exchange coil and fan in the car, and heat exchange coil is connected with the heat exchange coil of heat exchanger 18 in the car in the evaporimeter 15, is blown in the compartment with the cold air that evaporimeter 15 is produced.
As shown in Figure 2, solar thermal collector 1 adopts heat pipe vacuum tube hot collector, and its water inlet pipe and water outlet pipe is communicated with heat energy accumulator 3, and a circulating pump 1a is housed on its water inlet pipe.
Outside the exhaust pipe of engine 5, be surrounded by a heat exchanging water-jacket 4, heat exchanging water-jacket 4 water inlet pipe and water outlet pipe is communicated with the heat energy accumulator 3 first interior heat exchange coil 3b, and a heat exchange pump 6 is housed on heat exchanging water-jacket 4 the outlet pipe.
In engine radiating water tank 7, there is heat exchange coil to be communicated with through a circulating pump 7a with the second heat exchange coil 3c in the heat energy accumulator 3.
The course of work of this dual intensity refrigeration air-conditioner is following: produce high temperature automotive tail gas during engine operation; Cooling water tank 7 temperature increase; High-temperature gas heating heat exchanging water-jacket 4 transfer working medium in heat in the exhaust pipe of engine 5, its heat are delivered to by heat exchanging water-jacket's 4 outlet pipes, heat exchange pump 6, the first heat exchange coil 3b heating agent liquid temp are raise; The heat of cooling water tank 7 is delivered in the heat energy accumulator 3 by circulating pump 7a, the second heat exchange coil 3c; When solar radiation was arranged, the solar energy that solar thermal collector 1 is collected heated the circulation of the heating agent liquid in the heat energy accumulator 3 through water inlet pipe and water outlet pipe, circulating pump 1a.The heating agent liquid temp will heat heat-transfer pipe 3a transfer working medium in heat after raising in the heat energy accumulator 3, through heat pump 2 effects, the heat-transfer working medium temperature further raise, and obtain higher temperature and come heating high-pressure generator 10 inner refrigerants to freeze.
During refrigeration,, carry by solution pump 13 from a part of bromize lithium dilute solution that absorber 12 comes out; Behind low temperature heat exchanger 8, be divided into two-way, the one tunnel directly gets into low pressure generator 11; Another road gets into high pressure generator 10 after high-temperature heat exchanger 9 heats up, back one road bromize lithium dilute solution is heated by the heat energy from heat energy accumulator 3; Make it boiling, refrigerant vapour takes place, simultaneously; The temperature of solution and concentration raise, and after high-temperature heat exchanger 9 temperature reduce, get into low pressure generator 11 through flash distillation then; Directly that road bromize lithium dilute solution of entering low pressure generator 11 is also heated by the refrigerant vapour from high pressure generator 10 in low pressure generator 11 pipes and seethes with excitement; Produce refrigerant vapour; Solution is concentrated, and two parts concentrated solution is mixed in low pressure generator 11 liquid baths.
The refrigerant vapour that produces in the high pressure generator 10; Behind heating low pressure generator 11 solution, condense into water as refrigerant, after the control valve throttling, get into condenser 16; The refrigerant vapour that in low pressure generator 11, produces; By the water quench that in condenser pipe, flows, condensation becomes and the corresponding water as refrigerant of condensing pressure.
Water as refrigerant in the condenser 16 is after throttling; Get into evaporimeter 15, carry spray in evaporimeter 15 tube banks, because evaporimeter 15 internal pressures are very low by the cryogenic fluid pump 14 of evaporimeter 15; Water as refrigerant just is absorbed in the heat of the higher cold water of temperature mobile in the evaporator tube 15 and evaporates; Become refrigerant vapour, the temperature of cold water is reduced, i.e. refrigeration.The cold air that makes is through in the heat exchanger 18 entering compartments in the car.
The concentrated solution of coming out by low pressure generator 11; After low temperature heat exchanger 8 reduction temperature, mix the back mutually with another road weak solution of carrying and get into absorber 12 from the solution pump 13 of absorber 12, absorb the refrigerant vapour of flash-pot 15 to become weak solution; The cooling water that the latent heat of condensation in the absorption process and heat of solution are absorbed in device 12 heat-transfer pipes is taken away; Like this, spray solution is constantly taken the water vapour that cryogen is evaporated in the evaporimeter 15 away, keeps pressure very low in the evaporimeter 15; Guaranteed that the water as refrigerant steam that is evaporated in the evaporimeter 15 constantly flows to absorber 12; Thinning lithium-bromide solution is sent to the boiling of high and low pressure generator respectively to concentrate again owing to absorb refrigerant vapour in the evaporimeter 15, has so just accomplished a kind of refrigeration cycle.
Like Fig. 1, after closing cryogenic fluid pump 14, opening transfer valve 15a, 15b, air-conditioning will get into the heating circulation.
Claims (5)
1. automobile is with solar energy and engine exhaust heat dual intensity refrigeration air-conditioner; It comprises absorber (12), solution pump (13), low temperature heat exchanger (8), high-temperature heat exchanger (9), high pressure generator (10), low pressure generator (11), condenser (16), air-cooled radiator (17), evaporimeter (15) and cryogenic fluid pump (14); It is characterized in that: it also comprises heat exchanger (18) in the car that is connected with the interior heat exchange coil of evaporimeter (15), is connected with high pressure generator (10) and the heat energy accumulator (3) of heat exchange and go up the heat pump (2) that is provided with at said heat-transfer pipe (3a) through heat-transfer pipe (3a), the solar energy of collecting from the solar thermal collector (1) that is installed in automobile top and through pipeline heat is imported in the said heat energy accumulator (3) from these two kinds of heat energy of engine exhaust heat ability of the exhaust pipe of engine (5), engine radiating water tank (7) collection.
2. automobile according to claim 1 is with solar energy and engine exhaust heat dual intensity refrigeration air-conditioner; It is characterized in that: said solar thermal collector (1) is a heat pipe vacuum tube hot collector; Its water inlet pipe and water outlet pipe is communicated with heat energy accumulator (3), and a circulating pump (1a) is housed on its water inlet pipe.
3. automobile according to claim 1 is with solar energy and engine exhaust heat dual intensity refrigeration air-conditioner; It is characterized in that: be surrounded by a heat exchanging water-jacket (4) outside the said exhaust pipe of engine (5); Heat exchanging water-jacket's (4) water inlet pipe and water outlet pipe is communicated with interior first heat exchange coil (3b) of said heat energy accumulator (3), and a heat exchange pump (6) is housed on heat exchanging water-jacket's (4) the outlet pipe.
4. automobile according to claim 1 is characterized in that with solar energy and engine exhaust heat dual intensity refrigeration air-conditioner: have interior second heat exchange coil (3c) of heat exchange coil and said heat energy accumulator (3) to be communicated with through a circulating pump (7a) in the said engine radiating water tank (7).
5. automobile according to claim 1 is characterized in that: make cold-producing medium with water, make absorbent with lithium-bromide solution with solar energy and engine exhaust heat dual intensity refrigeration air-conditioner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100968238A CN101504224B (en) | 2009-03-16 | 2009-03-16 | Solar energy and engine exhaust heat dual-power refrigeration air conditioner for vehicle |
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| CN2009100968238A CN101504224B (en) | 2009-03-16 | 2009-03-16 | Solar energy and engine exhaust heat dual-power refrigeration air conditioner for vehicle |
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| CN101504224A CN101504224A (en) | 2009-08-12 |
| CN101504224B true CN101504224B (en) | 2012-07-25 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103697620A (en) * | 2013-12-25 | 2014-04-02 | 山西兰花科技创业股份有限公司 | Waste heat refrigeration method and device of urea high pressure temperature regulation water |
| CN106766356A (en) * | 2016-11-11 | 2017-05-31 | 江苏大学 | A kind of solar energy assisted absorption refrigerating plant for refrigerator car |
| CN106627034A (en) * | 2016-11-23 | 2017-05-10 | 长安大学 | Engine waste heat recovery type vehicle-mounted air conditioner system |
| CN112127976A (en) * | 2020-08-26 | 2020-12-25 | 杭州钱航船舶修造有限公司 | Marine engine waste heat recycling system and method thereof |
| CN113915786B (en) * | 2021-09-27 | 2023-03-07 | 河南科技大学 | Compression type heat pump device utilizing latent heat for energy storage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201363960Y (en) * | 2009-03-16 | 2009-12-16 | 浙江工商大学 | Solar energy and engine waste heat double-energy refrigeration air conditioner for automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201363960Y (en) * | 2009-03-16 | 2009-12-16 | 浙江工商大学 | Solar energy and engine waste heat double-energy refrigeration air conditioner for automobile |
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