CN201989796U - Micro-channel heat exchange condensing type rail transit air conditioning unit - Google Patents
Micro-channel heat exchange condensing type rail transit air conditioning unit Download PDFInfo
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- CN201989796U CN201989796U CN2011200648321U CN201120064832U CN201989796U CN 201989796 U CN201989796 U CN 201989796U CN 2011200648321 U CN2011200648321 U CN 2011200648321U CN 201120064832 U CN201120064832 U CN 201120064832U CN 201989796 U CN201989796 U CN 201989796U
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Abstract
The utility model discloses a micro-channel heat exchange condensing type rail transit air conditioning unit, which is provided with two independent refrigerating circuits. A compressor, a condenser and two evaporators connected in parallel are arranged in each refrigerating circuit; the compressor, the condenser and the two evaporators are connected through a refrigerant pipeline; and a micro-channel heat exchanger is adopted by the condenser. As the micro-channel heat exchanger is adopted to serve as the condenser, the air conditioning unit has a compact structure, and the external dimension of the unit can be reduced; the heat exchange efficiency is high, and compared with a copper tube fin type heat exchanger, the higher heat exchange quantity of the micro-channel heat exchanger can be realized under the same dimension; the micro-channel heat exchanger is made of an all-aluminum material, so that the air conditioning unit has a light weight, i.e. the weight of the unit is reduced; and little refrigerating fluid is needed, thus, the weight of the unit is further reduced.
Description
Technical field
The utility model relates to a kind of track train air-conditioning, particularly a kind of Thermal Performance of Micro Channels condensing track traffic air-conditioning unit.
Background technology
Existing track train has higher requirement to structure, overall dimensions and the weight of vehicle air conditioning, and under the condition that realizes certain refrigerating capacity, heat exchanger weight, profile and heat exchange efficiency have significant effects to the refrigerating capacity of air-conditioning unit.Present rail transit train air-conditioning condenser is generally the copper pipe aluminum fin heat exchanger, the density of copper is higher to cause whole flat tube weight height, copper pipe disc heat exchange mode heat exchange efficiency neither be very high, realize that certain heat exchange amount needs bigger condenser size, condenser size causes whole air conditioner packet size to increase greatly, influences the weight and the center-of-gravity position of whole train.
The utility model content
The technical problems to be solved in the utility model is: for problem such as overcome existing track train air-conditioning unit Heavy Weight, size is big, heat exchange efficiency is low, provide a kind of Thermal Performance of Micro Channels condensing track traffic air-conditioning unit.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of Thermal Performance of Micro Channels condensing track traffic air-conditioning unit, have two independently refrigerating circuits, the evaporator that has a compressor, a condenser and two parallel connections in each refrigerating circuit, connect by the refrigerant pipeline between compressor, condenser and the evaporator, condenser adopts micro-channel heat exchanger.
Micro-channel heat exchanger by microchannel, fin, two collectors, one advance connection pipe and one and go out connection pipe and form, between two collectors the microchannel is installed, fin is arranged in the adjacent microchannel, advances connection pipe and go out connection pipe to be installed in the wherein two ends of a collector respectively.
The flat tube that the microchannel is made up of a plurality of apertures, refrigerant process in aperture participates in heat exchange.
Fin is the fold sheet with several seams of windowing, and windstream is through fin, carries out heat exchange with refrigerant in the microchannel.
Diverse location adds in the collector cross wall, can change the trend of refrigerant in heat exchanger.
The material of micro-channel heat exchanger is aluminium, and is in light weight, to reduce air-conditioning unit weight.
The beneficial effects of the utility model are: each refrigeration system all adopts a micro-channel heat exchanger as condenser, and its compact conformation can reduce the unit oad; The heat exchange efficiency height is compared with the copper tube and fin heat exchanger and can be realized higher heat exchange amount under the same size; Micro-channel heat exchanger is made with full aluminum, and is in light weight, reduces unit weight; The refrigerant that needs is few, further reduces unit weight.
Description of drawings
Fig. 1 is the utility model Thermal Performance of Micro Channels systematic cyclic graph;
Fig. 2 is the structural representation of this practical middle micro-channel heat exchanger.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, a kind of Thermal Performance of Micro Channels condensing track traffic air-conditioning unit, have two independently refrigerating circuits, the evaporator 3 that has a compressor 1, a condenser 2 and two parallel connections in each refrigerating circuit, connect by the refrigerant pipeline between compressor 1, condenser 2 and the evaporator 3, condenser 2 adopts micro-channel heat exchanger.
Also be provided with supply ventilating fan 9, device for drying and filtering 10, wet liquid mirror 11 and heating power expansion valve 12 in the air-conditioning unit of the present utility model.
As shown in Figure 2, micro-channel heat exchanger by microchannel 4, fin 5, two collectors 6, one advance connection pipe 7 and one and go out connection pipe 8 and form, microchannel 4 is installed between two collectors 6, fin 5 is arranged in 4 flat tubes of adjacent microchannel, advances connection pipe 7 and go out connection pipe 8 to be installed in the wherein two ends of a collector 6 respectively.The flat tube that microchannel 4 is made up of a plurality of apertures, refrigerant process in aperture participates in heat exchange.Fin 5 is the fold sheets with a plurality of seams of windowing, and is arranged in 4 flat tubes of adjacent microchannel, and windstream is through fin, carries out heat exchange with refrigerant in the microchannel 4.Collector 6 is that refrigerant enters the house steward who is dispensed to each microchannel 4 aperture or is gathered by each aperture, adds cross wall at the diverse location of collector 6 and can change the trend of refrigerant in heat exchanger.Advance connection pipe 7, go out connection pipe 8 directly and the copper pipes in the system link to each other realization refrigerant circulating function.
The aperture cross-sectional diameter generally is 0.5～3mm in the microchannel 4, so the circulation refrigerant that needs is considerably less.A plurality of apertures have guaranteed that refrigerant is assigned to the refrigerant of multiply low discharge, realize that pressure drop is low, and the heat exchange loss is little.Many apertures heat exchange mode of compact design and microchannel 4 has guaranteed heat exchange property efficiently, and aluminum material has been realized lightweight characteristics.
Its principle of work is: evaporator 3 and supply ventilating fan 9 cool off the air evaporation in the compartment, and send cooled air back to compartment; Compressor 1 low-temperature low-pressure refrigerant of its evaporator 3 in the future is compressed into high-temperature high-pressure state, is discharged in the condenser 2; Condenser 2 is condensed into liquid with the refrigerant gas heat exchange of High Temperature High Pressure, and refrigerant liquid is delivered to evaporator 3 entrance by heating power expansion valve 12 with the high temperature high pressure liquid cooling through device for drying and filtering 10 and wet liquid mirror 11.
Claims (7)
1. Thermal Performance of Micro Channels condensing track traffic air-conditioning unit, it is characterized in that: have two independently refrigerating circuits, the evaporator (3) that has a compressor (1), a condenser (2) and two parallel connections in each refrigerating circuit, connect by the refrigerant pipeline between compressor (1), condenser (2) and the evaporator (3), condenser (2) adopts micro-channel heat exchanger.
2. Thermal Performance of Micro Channels condensing track traffic air-conditioning unit according to claim 1, it is characterized in that: described micro-channel heat exchanger by microchannel (4), fin (5), two collectors (6), one advance connection pipe (7) and one and go out connection pipe (8) and form, microchannel (4) is installed between two collectors (6), fin (5) is arranged in the adjacent microchannel (4), advances connection pipe (7) and go out connection pipe (8) to be installed in the wherein two ends of a collector (6) respectively.
3. Thermal Performance of Micro Channels condensing track traffic air-conditioning unit according to claim 2 is characterized in that: the flat tube that described microchannel (4) are made up of a plurality of apertures.
4. Thermal Performance of Micro Channels condensing track traffic air-conditioning unit according to claim 3 is characterized in that; Described aperture cross-sectional diameter is 0.5～3mm.
5. Thermal Performance of Micro Channels condensing track traffic air-conditioning unit according to claim 2 is characterized in that: described fin (5) is the fold sheet with several seams of windowing.
6. Thermal Performance of Micro Channels condensing track traffic air-conditioning unit according to claim 2 is characterized in that: the interior diverse location of described collector (6) adds cross wall.
7. Thermal Performance of Micro Channels condensing track traffic air-conditioning unit according to claim 1, it is characterized in that: the material of described micro-channel heat exchanger is an aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200648321U CN201989796U (en) | 2011-03-14 | 2011-03-14 | Micro-channel heat exchange condensing type rail transit air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200648321U CN201989796U (en) | 2011-03-14 | 2011-03-14 | Micro-channel heat exchange condensing type rail transit air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201989796U true CN201989796U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200648321U Expired - Lifetime CN201989796U (en) | 2011-03-14 | 2011-03-14 | Micro-channel heat exchange condensing type rail transit air conditioning unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215109A (en) * | 2014-08-15 | 2014-12-17 | 珠海格力电器股份有限公司 | Phase change energy storage device |
| CN105539477A (en) * | 2016-02-04 | 2016-05-04 | 上海科泰运输制冷设备有限公司 | Defrosting unit of heat pump air conditioner |
| WO2016155000A1 (en) * | 2015-03-31 | 2016-10-06 | 江苏中辆科技有限公司 | Air conditioner system of railway vehicle |
| CN114278998A (en) * | 2021-02-07 | 2022-04-05 | 山东烯泰天工节能科技有限公司 | Heat exchanger for microtube air conditioner and air conditioner outdoor unit using same |
| CN115476889A (en) * | 2022-10-31 | 2022-12-16 | 中车长春轨道客车股份有限公司 | Thin lightweight air conditioning unit |
| WO2024092919A1 (en) * | 2022-10-31 | 2024-05-10 | 中车长春轨道客车股份有限公司 | Thin and lightweight air-conditioning unit |
-
2011
- 2011-03-14 CN CN2011200648321U patent/CN201989796U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215109A (en) * | 2014-08-15 | 2014-12-17 | 珠海格力电器股份有限公司 | Phase change energy storage device |
| WO2016155000A1 (en) * | 2015-03-31 | 2016-10-06 | 江苏中辆科技有限公司 | Air conditioner system of railway vehicle |
| CN105539477A (en) * | 2016-02-04 | 2016-05-04 | 上海科泰运输制冷设备有限公司 | Defrosting unit of heat pump air conditioner |
| CN105539477B (en) * | 2016-02-04 | 2018-07-24 | 上海科泰运输制冷设备有限公司 | Heat pump air conditioner defrost unit |
| CN114278998A (en) * | 2021-02-07 | 2022-04-05 | 山东烯泰天工节能科技有限公司 | Heat exchanger for microtube air conditioner and air conditioner outdoor unit using same |
| CN114278998B (en) * | 2021-02-07 | 2023-11-17 | 山东烯泰天工节能科技有限公司 | Heat exchanger for micro-pipe air conditioner and air conditioner outdoor unit using same |
| CN115476889A (en) * | 2022-10-31 | 2022-12-16 | 中车长春轨道客车股份有限公司 | Thin lightweight air conditioning unit |
| WO2024092919A1 (en) * | 2022-10-31 | 2024-05-10 | 中车长春轨道客车股份有限公司 | Thin and lightweight air-conditioning unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |