CN102887153B - Train air conditioning unit - Google Patents
Train air conditioning unit Download PDFInfo
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- CN102887153B CN102887153B CN201210322642.4A CN201210322642A CN102887153B CN 102887153 B CN102887153 B CN 102887153B CN 201210322642 A CN201210322642 A CN 201210322642A CN 102887153 B CN102887153 B CN 102887153B
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- condenser
- condenser coil
- air conditioning
- conditioning unit
- parallel
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a train air conditioning unit, relates to the technical field of train air conditioning and ventilation equipment and solves the problem that a condenser coil and condensation air volume of the conventional unit type air conditioning unit are not fully utilized when only one refrigeration circuit works. The train air conditioning unit is at least two closed refrigerating circuits consisting of compressor units, condensers, expansion valves and evaporators, wherein each condenser consists of two parallel condenser coils which are arranged in a staggered way; one condenser coil of a condenser is connected in parallel with one condenser coil of the adjacent condenser to form a condenser coil group; and the compressor units, the condenser coil groups, the expansion valves and the evaporators are connected in sequence to form the refrigeration circuits. The train air conditioning unit is especially suitable for air conditioning systems of various passenger trains, urban rail vehicles and subway trains.
Description
Technical field
The present invention relates to train air-conditioning draft equipment technical field, particularly relate to the Train air conditioning unit that a kind of condenser coil is arranged in parallel.
Background technology
At present, the design of domestic rail traffic train air conditioning group generally adopts two independently refrigerating circuits, and each independently refrigerating circuit is made up of cooling modules such as compressor, condenser, evaporator and expansion valves.The total refrigerating capacity of air-conditioner set designs by the requirement of peak period on and off duty in summer.In the real-world operation of rail transit train, except the high crest segment of upper and lower class in hot summer, most of time air-conditioner set only has a refrigerating circuit in work, and the condenser of another refrigerating circuit can not be utilized, and air-conditioner set work efficiency is reduced.
In order to realize the control of the multi-stage refrigerating amount of more than two-stage, Chinese invention patent ZL201010183306.7, Authorization Notice No. CN 101846413B, name is called a kind of railcar Air conditioning unit and control method thereof.Refer to Fig. 1, this technical scheme comprises at least two independently refrigerating circuits, and each refrigerating circuit comprises compressor, the condenser be connected with compressor one end, the evaporator coil be connected with condenser one end; This evaporator coil is connected with the compressor other end formation C/LOOP; Evaporator coil is arranged in evaporator, and this evaporator side is provided with supply ventilating fan, and each independent cooling loop comprises at least two compressors in parallel.The technical scheme of this invention achieves the fourth gear adjustment of refrigerating capacity, and automatically can control in real time, take full advantage of the heat interchanging area of evaporator, in vehicle, air themperature homogeneity is high, and temperature fluctuation is less.But in this air-conditioner set working process, when only having a refrigerating circuit job, only a condenser coil is utilized, the condensation air quantity of another condenser coil and half is utilized, namely, when only having a refrigerating circuit job, condensation air quantity and another condenser coil of half have been wasted.
Summary of the invention
For existing Air conditioning unit, when only having refrigerating circuit work, condenser coil and condensation air quantity fail the problem of being fully used, and the object of this invention is to provide the Train air conditioning unit that a kind of condenser coil is arranged in parallel.
The technical solution adopted for the present invention to solve the technical problems is: the refrigerating circuit that its at least two of being made up of compressor unit, condenser, expansion valve and evaporator is closed; By two, the parallel and condenser coil be crisscross arranged forms described condenser; Form condenser coil group after a condenser coil of described condenser is in parallel with a condenser coil of adjacent condenser, described compressor unit, condenser coil group, expansion valve and evaporator are communicated with the described refrigerating circuit of formation successively.
Described condenser coil to be arranged in parallel and the cold finger be communicated with and the fin be located on described cold finger form by some.
Preferably, described compressor unit is made up of a compressor or two compressors in parallel.
The pipeline that described condenser coil group is connected with described evaporator is provided with charging valve, electromagnetic valve, device for drying and filtering and liquid-sighting glass successively.
The effect of this patent is: two condenser coils in condenser of the present invention are crisscross arranged, and each refrigerating circuit is assigned to the heat interchanging area of each condenser 50%.When two refrigerating circuits work simultaneously, each refrigerating circuit respectively utilizes the heat interchanging area of two condensers 50%, and also namely each refrigerating circuit is equivalent to the usefulness of a use condenser 100%.When only having a refrigerating circuit job, due to the staggered feature of condenser coil, this refrigerating circuit will utilize whole condensation air quantity and the heating area of condenser coil, two condensers are obtained for and make full use of, thus improve its condensing capacity, reduce the exhaust gas pressure of compressor, significantly improve the energy consumption efficiency of air-conditioner set when unitary system cold loop works.
Compared with design plan of the prior art, the present invention makes the condensing capacity of air-conditioner set when only having a refrigerating circuit job improve about 70%, the condensing pressure of this air-conditioner set is declined to a great extent, thus makes the consumption of power of compressor unit reduce about 25%.Because the present invention makes the condensing pressure of compressor decline to a great extent, thus also improve the operating range of air-conditioner set under thermal extremes, make to compress function at higher operate at ambient temperature during single loop works.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described;
Fig. 1 is the structural representation of prior art railcar Air conditioning unit;
Fig. 2 is the principle schematic of air-conditioner set of the present invention;
Fig. 3 is the staggered schematic diagram of air conditioning set condenser coil pipe of the present invention;
Detailed description of the invention
Below by cited embodiment by reference to the accompanying drawings, technology contents of the present invention and feature will be described in detail.For sake of convenience, hereinafter described " on ", D score is consistent with the upper and lower direction of accompanying drawing, but this can not become the restriction of technical solution of the present invention.
Composition graphs 2 illustrates the Train air conditioning unit (in figure, filled arrows represents the flow direction of refrigerant) of the present embodiment, it is two independently closed refrigerating circuit, i.e. the first refrigerating circuit 100 and the second refrigerating circuits 200 be made up of compressor unit, condenser, expansion valve and evaporator.
First condenser 102 and the condenser coil one 103 that be crisscross arranged and condenser coil two 104 parallel by two form, and the second condenser 202 and the condenser coil three 203 that be crisscross arranged and condenser coil four 204 parallel by two form.Each condenser coil to be arranged in parallel and the cold finger be communicated with and the fin be located on described cold finger form by some.
Condenser coil 1 and condenser coil 3 203 are connected in parallel composition first condenser coil group, and condenser coil 2 104 and condenser coil 4 204 are connected in parallel composition second condenser coil group.
First refrigerating circuit 100 to be made up of with evaporator 2 14 compressor unit one 101, first condenser coil group, evaporator 1 and to be connected by refrigerant pipeline.Second refrigerating circuit 200 to be made up of with evaporator 2 14 compressor unit 2 201, second condenser coil group, evaporator 1 and to be connected by refrigerant pipeline.Wherein, evaporator 1 and evaporator 2 14 are arranged in parallel.
Further, compressor unit 1, compressor unit 2 201 form by a platform independent compressor or by two compressors in parallel.
The pipeline that first condenser coil group, the second condenser coil group are connected with evaporator 1 in parallel and evaporator 2 14 is provided with charging valve, electromagnetic valve, device for drying and filtering and liquid-sighting glass all successively.
In the first refrigerating circuit 100, the connecting line of compressor unit 1 and the first condenser coil group is provided with high-voltage switch gear and charging valve, and compressor unit 1 is provided with low tension switch and charging valve with the connecting line of evaporator 1 in parallel and evaporator 2 14.Equally, in the second refrigerating circuit 200, the connecting line of compressor unit 2 201 and the second condenser coil group is also provided with high-voltage switch gear and charging valve, the connecting line of compressor unit 2 201 and evaporator 1 in parallel and evaporator 2 14 is also provided with low tension switch and charging valve.
In order to the heat freezed in condenser is passed to ambient atmosphere, between the first condenser 102 and the second condenser 202, be provided with two condensation fans 10 arranged side by side.The side of evaporator 1 and evaporator 2 14 is respectively equipped with supply ventilating fan 1 and supply ventilating fan 2 12, is convenient to rapidly the air by evaporator refrigeration is delivered to compartment in time.
(in Fig. 3, filled arrows represents the flow direction of refrigerant for composition graphs 2 and Fig. 3, hollow arrow represents air in a car compartment flow direction) the refrigeration work process of the Train air conditioning unit of the present embodiment is described: in the first refrigerating circuit 100, after liquid refrigerant absorbs the heat of cooled object in evaporator 1 and evaporator 2 14, be vaporized into the steam of low-temp low-pressure, low temperature and low pressure steam is sucked by compressor unit 1 and after being compressed into high-pressure and high-temperature steam, enter the condenser coil 1 and condenser coil 3 203 that are arranged in parallel, high-pressure and high-temperature steam is condensed into highly pressurised liquid in condenser coil after cooling media (water or air) heat release, this highly pressurised liquid is successively through charging valve, electromagnetic valve, device for drying and filtering, liquid-sighting glass and expansion valve become the liquid refrigerant of low-pressure low-temperature, the evaporator 1 and evaporator 2 14 heat absorption that enter parallel connection are more respectively vaporized and produce refrigeration effect, make the Air flow in compartment, reach the object of circularly cooling.In like manner, working process and first refrigerating circuit 100 of the second refrigerating circuit 200 are similar, do not repeat them here.Like this, refrigerant completes refrigerating cycle through pervaporation, compression, condensation, throttling four basic processes in two refrigerating circuits.
As shown in Figure 3, in the present embodiment, the condenser coil in condenser is crisscross arranged, and each refrigerating circuit is assigned to the heat interchanging area of each condenser 50%.When two refrigerating circuits work simultaneously, each refrigerating circuit respectively utilizes the heat interchanging area of two condensers 50%, and also namely each refrigerating circuit is equivalent to the usefulness of a use condenser 100%.When only having a refrigerating circuit job, due to the feature that condenser coil is arranged in parallel, this refrigerating circuit will utilize all condensation air quantity and the heating area of condenser coil, two condensers are obtained for and make full use of, significantly improve the energy consumption efficiency of air-conditioner set when unitary system cold loop works, thus improve its condensing capacity, compared with design plan of the prior art, the present invention makes the condensing capacity of air-conditioner set refrigerating circuit improve about 70%, the condensing pressure of this air-conditioner set is declined to a great extent, thus make the consumption of power of compressor unit reduce about 25%, and improve the operating range of air-conditioner set under thermal extremes.
Those skilled in the art will recognize that; above-mentioned detailed description of the invention is exemplary; to enable those skilled in the art better understand this patent content; should not be understood as the restriction to this patent protection domain; as long as according to this patent disclose any equivalent change done of spirit or modification, all fall into this patent protection domain.
Claims (4)
1. a Train air conditioning unit, the refrigerating circuit that its two of being made up of compressor unit, the first condenser, the second condenser, expansion valve and evaporator is closed;
It is characterized in that: the parallel and condenser coil be crisscross arranged forms by two for described first condenser, described second condenser; Described first condenser is made up of condenser coil one and condenser coil two; Described second condenser is made up of condenser coil three and condenser coil four; Described condenser coil one and described condenser coil three are connected in parallel composition first condenser coil group, described condenser coil two and described condenser coil four are connected in parallel composition second condenser coil group, described compressor unit, described first condenser coil group, described expansion valve are communicated with formation first refrigerating circuit successively with described evaporator, and described compressor unit, described second condenser coil group, described expansion valve are communicated with formation second refrigerating circuit successively with described evaporator.
2. Train air conditioning unit according to claim 1, is characterized in that:
Described condenser coil to be arranged in parallel and the cold finger be communicated with and the fin be located on described cold finger form by some.
3. Train air conditioning unit according to claim 1 and 2, is characterized in that:
Described compressor unit is made up of a compressor or two compressors in parallel.
4. Train air conditioning unit according to claim 1 and 2, is characterized in that:
The pipeline that described condenser coil group is connected with described evaporator is provided with charging valve, electromagnetic valve, device for drying and filtering and liquid-sighting glass successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210322642.4A CN102887153B (en) | 2012-09-03 | 2012-09-03 | Train air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210322642.4A CN102887153B (en) | 2012-09-03 | 2012-09-03 | Train air conditioning unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102887153A CN102887153A (en) | 2013-01-23 |
| CN102887153B true CN102887153B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210322642.4A Active CN102887153B (en) | 2012-09-03 | 2012-09-03 | Train air conditioning unit |
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| CN (1) | CN102887153B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2019127206A1 (en) * | 2017-12-26 | 2019-07-04 | 中车长春轨道客车股份有限公司 | Railway train and unitary air-conditioning unit thereof |
| CN109405527A (en) * | 2018-10-24 | 2019-03-01 | 浙江中广电器股份有限公司 | Large supply air temperature formula air-energy dryer |
| JP2021173420A (en) * | 2020-04-17 | 2021-11-01 | 三菱電機株式会社 | Air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1195597A (en) * | 1967-11-08 | 1970-06-17 | Hitachi Ltd | Air Conditioner |
| CN200996758Y (en) * | 2006-12-29 | 2007-12-26 | 张剑 | Central air-conditioner system of double energy source cold-hot water apparatus set |
| CN201277756Y (en) * | 2008-10-07 | 2009-07-22 | 石家庄国祥运输设备有限公司 | Ultra-thin air conditioner for locomotive |
| CN101922818A (en) * | 2009-06-09 | 2010-12-22 | 上海法维莱交通车辆设备有限公司 | Air conditioning unit of rail transit train |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202806768U (en) * | 2012-09-03 | 2013-03-20 | 上海科泰运输制冷设备有限公司 | Air conditioning unit of train |
-
2012
- 2012-09-03 CN CN201210322642.4A patent/CN102887153B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1195597A (en) * | 1967-11-08 | 1970-06-17 | Hitachi Ltd | Air Conditioner |
| CN200996758Y (en) * | 2006-12-29 | 2007-12-26 | 张剑 | Central air-conditioner system of double energy source cold-hot water apparatus set |
| CN201277756Y (en) * | 2008-10-07 | 2009-07-22 | 石家庄国祥运输设备有限公司 | Ultra-thin air conditioner for locomotive |
| CN101922818A (en) * | 2009-06-09 | 2010-12-22 | 上海法维莱交通车辆设备有限公司 | Air conditioning unit of rail transit train |
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| CN102887153A (en) | 2013-01-23 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jia Xiguo Inventor after: Huang Dezhi Inventor after: Wang Julong Inventor before: Jia Xiguo Inventor before: Huang Dezhi Inventor before: Peng Dewei |
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Free format text: CORRECT: INVENTOR; FROM: JIA XIGUO HUANG DEZHI PENG DEWEI TO: JIA XIGUO HUANG DEZHI WANG JULONG |
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