CN103707738A - Method and device for recovering LNG cold energy for automobile air conditioner system - Google Patents
Method and device for recovering LNG cold energy for automobile air conditioner system Download PDFInfo
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- CN103707738A CN103707738A CN201410013508.5A CN201410013508A CN103707738A CN 103707738 A CN103707738 A CN 103707738A CN 201410013508 A CN201410013508 A CN 201410013508A CN 103707738 A CN103707738 A CN 103707738A
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Abstract
With the quick development of Chinese economy and adjustment of the energy structure, natural gas as the clean energy rapidly develops. LNG is used as automobile fuel, so that air pollution due to automobile exhaust is greatly lowered, and a large amount of cold energy is generated by the LNG as fuel. Accordingly, resources are comprehensively utilized, the energy utilization rate is improved, natural gas storage characteristic is considered, cold energy generated through vaporization of LNS is used for an automobile air conditioner system, and requirements for air conditioner cooling capacity under different work conditions of automobile starting, stable operation and parking are met, and a method and device is provided for recovering LNG cold energy for the automobile air conditioner system.
Description
Technical field
The present invention relates to Automobile air gasifying device and a/c system, be specifically related to reclaim new-energy automobile LNG gasification and produce the method and apparatus of cold energy use.
Background technology
Along with the fast development of China's economy and the adjustment of energy mix, as the natural fuels of clean energy resource, obtained fast development.The LNG of take will reduce the pollution of vehicle exhaust to atmosphere greatly as motor vehicle fuel, and LNG is developed rapidly in China as motor vehicle fuel.LNG is as the green vehicle energy, in gasification engineering, produce a large amount of cold energy uses these, if these cold energy that are not used not only can cause the waste of the energy also to cause the cold destruction of equipment.
Patent content
The object of patent of the present invention is that a kind of LNG cold energy reclaims the associated working by each heat exchanger for the method and apparatus of automotive air-conditioning system LNG is converted into normal-temperature natural-gas for motor vehicle fuel, the cold energy again LNG gasification being discharged is recycled in air conditioning for automobiles, drive cold energy to use the development of industry, improve energy utilization rate, realized the doulbe-sides' victory of energy-saving and emission-reduction and economic benefit.
The art of this patent scheme is as follows: it is characterized in that:
When control cock is opened, LNG in LNG storage tank enters convection heat-exchanger gasification under pressure, still has lower temperature enter convection heat-exchanger ethylene glycol solution with convection current and again carry out interchange of heat and become normal-temperature natural-gas from convection heat-exchanger natural fuels out; Normal-temperature natural-gas enters into mixer and mixes through fil filtered air through automatic controlling valve, fil, pressure reducer, and last miscellaneous gas enters driving engine; Ethylene glycol solution in ethylene glycol cold-storage tank through triple valve, injects plate type heat exchanger by centrifugal pump and air carries out interchange of heat, in motor space, need lower temperature when (summer), triple valve is divided into a, b two stocks by the ethylene glycol solution being injected by centrifugal pump not to inject plate type heat exchanger, carries out interchange of heat with air, to meet temperature (summer) needs in motor space; Ethylene glycol solution through heat exchanger enters convection heat-exchanger, carries out being stored in ethylene glycol secondary cold-storage tank after interchange of heat with natural fuels, LNG; When automobile stops, closing shutoff valve, the ethylene glycol solution being stored in ethylene glycol cold-storage tank carries out interchange of heat by centrifugal pump through triple valve injection plate type heat exchanger and air, has realized the normal work of air-conditioning in car while stopping.
Said system rationally, is efficiently utilized the cold energy producing in LNG gasification, can reclaim these cold energy and for automotive air-conditioning system, not only avoid the waste of cold energy in LNG gasification engineering by actv., has also solved temperature (summer) needs of car room.The demand that meets air-conditioning cold flow under the different operating modes such as automobile starting, steady-state operation, parking, utilize resources synthetically, has improved energy utilization rate, has realized economic sustainable development.
The advantage of patent of invention
The advantage of patent of the present invention: (1) by reclaim LNG gasification be the cold energy that produces for automotive air-conditioning system, improved the utilization ratio of the energy; (2) when automobile stops, closing shutoff valve, the ethylene glycol solution being stored in ethylene glycol cold-storage tank carries out interchange of heat by centrifugal pump through triple valve injection plate type heat exchanger and air, has realized the normal work of air-conditioning in car while stopping; (3) in motor space, need lower temperature when (summer), triple valve is divided into a, b two stocks by the ethylene glycol solution being injected by centrifugal pump not to inject plate type heat exchanger, carries out interchange of heat with air, to meet temperature (summer) needs in motor space; (4) in the present invention, refrigerant is ethylene glycol solution, stable chemical performance, low toxicity, the safe operation of freezing point low guaranteed this project; (5) flow process is simple, equipment is few, flexible adjustment, reliable operation, efficiency are high.
Accompanying drawing explanation
Fig. 1 is that a kind of LNG cold energy reclaims the device schematic diagram for automotive air-conditioning system.
The specific embodiment
Below in conjunction with drawings and the embodiments, patent of invention is described in further detail: patent of invention is specifically related to a kind of LNG cold energy and reclaims the method and apparatus for automotive air-conditioning system, when control cock is opened, LNG in LNG storage tank enters convection heat-exchanger gasification under pressure, still has lower temperature enter convection heat-exchanger ethylene glycol solution with convection current and again carry out interchange of heat and become normal-temperature natural-gas from convection heat-exchanger natural fuels out; Normal-temperature natural-gas enters into mixer and mixes through fil filtered air through automatic controlling valve, fil, pressure reducer, and last miscellaneous gas enters driving engine; Ethylene glycol solution in ethylene glycol cold-storage tank through triple valve, injects plate type heat exchanger by centrifugal pump and air carries out interchange of heat, in motor space, need lower temperature when (summer), triple valve is divided into a, b two stocks by the ethylene glycol solution being injected by centrifugal pump not to inject plate type heat exchanger, carries out interchange of heat with air, to meet temperature (summer) needs in motor space; Ethylene glycol solution through heat exchanger enters convection heat-exchanger, carries out being stored in ethylene glycol secondary cold-storage tank after interchange of heat with natural fuels, LNG; When automobile stops, closing shutoff valve, the ethylene glycol solution being stored in ethylene glycol cold-storage tank carries out interchange of heat by centrifugal pump through triple valve injection plate type heat exchanger and air, has realized the normal work of air-conditioning in car while stopping.
Detailed protocol is as follows, and the device adopting comprises: ethylene glycol cold-storage tank (1), centrifugal pump (2), triple valve (3), plate type heat exchanger (4), (5), convection heat-exchanger (6), (7), ethylene glycol secondary cold-storage tank (8), shutoff valve (9), LNG storage tank (10), control cock (11), driving engine (12), mixer (13), airfilter (14), (16), pressure reducer (15), automatic controlling valve (17); It is characterized in that: when control cock (11) is opened, LNG in LNG storage tank (10) enters convection heat-exchanger (7) gasification under pressure, still has lower temperature enter convection heat-exchanger (6) ethylene glycol solution with convection current and again carry out interchange of heat and become normal-temperature natural-gas from convection heat-exchanger (7) natural fuels out; Normal-temperature natural-gas enters into mixer (13) and mixes through fil (14) filtered air through automatic controlling valve (17), fil (16), pressure reducer (15), and last miscellaneous gas enters driving engine (12); Ethylene glycol solution in ethylene glycol cold-storage tank (1) injects plate type heat exchanger (4) by centrifugal pump (2) through triple valve (3) and carries out interchange of heat with air, while needing lower temperature in motor space, triple valve (3) is divided into the ethylene glycol solution being injected by centrifugal pump (2) that a, b two stocks do not inject plate type heat exchanger (4), (5) carry out interchange of heat with air, to meet the temperature needs in motor space; Ethylene glycol solution through heat exchanger enters convection heat-exchanger (6), (7) carry out being stored in ethylene glycol secondary cold-storage tank (8) after interchange of heat with natural fuels, LNG; When stopping, automobile closes shutoff valve (9), the ethylene glycol solution being stored in ethylene glycol cold-storage tank (1) carries out interchange of heat by centrifugal pump (2) through triple valve (3) injection plate type heat exchanger (4) and air, has realized the normal work of air-conditioning in car while stopping.
Described a kind of LNG cold energy reclaims the method and apparatus for automotive air-conditioning system, it is characterized in that: utilize heat transmission equipment (4), (5), (6), (7) by LNG gasification be produce carry out in a large number cold exchange, the cold destruction of while having reduced LNG gasification, equipment having been caused, and the cold energy reclaiming is used for to automotive air-conditioning system, the comprehensive application energy reduces the waste of resource.
Described a kind of LNG cold energy reclaims the method and apparatus for automotive air-conditioning system, it is characterized in that: during parking, close shutoff valve (9) and be stored in ethylene glycol solution in ethylene glycol cold-storage tank (1) and by centrifugal pump (2), through triple valve (3), inject plate type heat exchanger (4) and carry out interchange of heat with air, realized the normal work of air-conditioning in car while stopping.
Described a kind of LNG cold energy reclaims the method and apparatus for automotive air-conditioning system, it is characterized in that: while needing lower temperature in motor space, triple valve (3) is divided into the ethylene glycol solution being injected by centrifugal pump (2) that a, b two stocks do not inject plate type heat exchanger (4), (5) carry out interchange of heat with air, to meet the temperature needs in motor space.
Described a kind of LNG cold energy reclaims the method and apparatus for automotive air-conditioning system, it is characterized in that: in this process, refrigerant is ethylene glycol solution.
Claims (5)
1. a LNG cold energy reclaims the method and apparatus for automotive air-conditioning system, the device adopting in method comprises: ethylene glycol cold-storage tank (1), centrifugal pump (2), triple valve (3), plate type heat exchanger (4), (5), convection heat-exchanger (6), (7), ethylene glycol secondary cold-storage tank (8), shutoff valve (9), LNG storage tank (10), control cock (11), driving engine (12), mixer (13), airfilter (14), (16), pressure reducer (15), automatic controlling valve (17); It is characterized in that: when control cock (11) is opened, LNG in LNG storage tank (10) enters convection heat-exchanger (7) gasification under pressure, still has lower temperature enter convection heat-exchanger (6) ethylene glycol solution with convection current and again carry out interchange of heat and become normal-temperature natural-gas from convection heat-exchanger (7) natural fuels out; Normal-temperature natural-gas enters into mixer (13) and mixes through fil (14) filtered air through automatic controlling valve (17), fil (16), pressure reducer (15), and last miscellaneous gas enters driving engine (12); Ethylene glycol solution in ethylene glycol cold-storage tank (1) injects plate type heat exchanger (4) by centrifugal pump (2) through triple valve (3) and carries out interchange of heat with air, while needing lower temperature in motor space, triple valve (3) is divided into the ethylene glycol solution being injected by centrifugal pump (2) that a, b two stocks do not inject plate type heat exchanger (4), (5) carry out interchange of heat with air, to meet the temperature needs in motor space; Ethylene glycol solution through heat exchanger enters convection heat-exchanger (6), (7) carry out being stored in ethylene glycol secondary cold-storage tank (8) after interchange of heat with natural fuels, LNG; When stopping, automobile closes shutoff valve (9), the ethylene glycol solution being stored in ethylene glycol cold-storage tank (1) carries out interchange of heat by centrifugal pump (2) through triple valve (3) injection plate type heat exchanger (4) and air, has realized the normal work of air-conditioning in car while stopping.
2. a kind of LNG cold energy as claimed in claim 1 reclaims the method and apparatus for automotive air-conditioning system, it is characterized in that: utilize heat transmission equipment (4), (5), (6), (7) by LNG gasification be produce carry out in a large number cold exchange, the cold destruction of while having reduced LNG gasification, equipment having been caused, and the cold energy reclaiming is used for to automotive air-conditioning system, the comprehensive application energy reduces the waste of resource.
3. a kind of LNG cold energy as claimed in claim 1 reclaims the method and apparatus for automotive air-conditioning system, it is characterized in that: during parking, close shutoff valve (9) and be stored in ethylene glycol solution in ethylene glycol cold-storage tank (1) and by centrifugal pump (2), through triple valve (3), inject plate type heat exchanger (4) and carry out interchange of heat with air, realized the normal work of air-conditioning in car while stopping.
4. a kind of LNG cold energy as claimed in claim 1 reclaims the method and apparatus for automotive air-conditioning system, it is characterized in that: while needing lower temperature in motor space, triple valve (3) is divided into the ethylene glycol solution being injected by centrifugal pump (2) that a, b two stocks do not inject plate type heat exchanger (4), (5) carry out interchange of heat with air, to meet the temperature needs in motor space.
5. a kind of LNG cold energy as claimed in claim 1 reclaims the method and apparatus for automotive air-conditioning system, it is characterized in that: in this process, refrigerant is ethylene glycol solution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410013508.5A CN103707738A (en) | 2014-01-10 | 2014-01-10 | Method and device for recovering LNG cold energy for automobile air conditioner system |
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| CN201410013508.5A CN103707738A (en) | 2014-01-10 | 2014-01-10 | Method and device for recovering LNG cold energy for automobile air conditioner system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823140A (en) * | 2017-11-23 | 2019-05-31 | 上海汽车集团股份有限公司 | Automobile air conditioning refrigerating system and refrigerating method based on liquid hydrogen fuel cell |
| CN113022264A (en) * | 2021-03-11 | 2021-06-25 | 中国重汽集团济南动力有限公司 | Liquefied natural gas heavy truck cold energy utilization system and control method |
| CN113212109A (en) * | 2021-05-18 | 2021-08-06 | 扬州工业职业技术学院 | LNG bus supercharged engine cold energy recovery method and device |
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2014
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Cited By (5)
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| CN109823140A (en) * | 2017-11-23 | 2019-05-31 | 上海汽车集团股份有限公司 | Automobile air conditioning refrigerating system and refrigerating method based on liquid hydrogen fuel cell |
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| CN113022264A (en) * | 2021-03-11 | 2021-06-25 | 中国重汽集团济南动力有限公司 | Liquefied natural gas heavy truck cold energy utilization system and control method |
| CN113212109A (en) * | 2021-05-18 | 2021-08-06 | 扬州工业职业技术学院 | LNG bus supercharged engine cold energy recovery method and device |
| CN113212109B (en) * | 2021-05-18 | 2023-09-19 | 扬州工业职业技术学院 | LNG bus supercharged engine cold energy recovery method and device |
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Application publication date: 20140409 |