CN209022709U - A kind of Vehicular refrigeration heat pump system - Google Patents
A kind of Vehicular refrigeration heat pump system Download PDFInfo
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- CN209022709U CN209022709U CN201821072756.7U CN201821072756U CN209022709U CN 209022709 U CN209022709 U CN 209022709U CN 201821072756 U CN201821072756 U CN 201821072756U CN 209022709 U CN209022709 U CN 209022709U
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 21
- 230000008676 import Effects 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000003507 refrigerant Substances 0.000 claims description 20
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 abstract description 7
- 238000001704 evaporation Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003303 reheating Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model relates to refrigeration heat pump system technical field, especially a kind of Vehicular refrigeration heat pump system, including outdoor heat exchanger, the indoor heat exchanger are divided into several subdivisions, and each subdivision is equipped with an import, one outlet；It further include process switching device, each subdivision of the process switching device control heat exchanger is used in parallel or in series.After adopting the above structure, the utility model is under condensing condition, and modified refrigerating capacity is than original raising about 15%, pressure drop increase about 19%；Under evaporation conditions, modified heating capacity improves about 9% than original, and pressure drop with it is original almost the same.
Description
Technical field
The utility model relates to refrigeration heat pump system technical field, especially a kind of Vehicular refrigeration heat pump system.
Background technique
Heat pump is a kind of efficient energy-saving device for making full use of low grade heat energy.Heat spontaneous can be passed from high temp objects
It is delivered in cryogenic object, but cannot spontaneously carry out in opposite direction.The working principle of heat pump is exactly to be compeled with inverse endless form
So that heat is flowed to the mechanical device of high temp objects from cryogenic object, it only consumes a small amount of inverse Cycle Net Work, so that it may obtain compared with
Big heating load can effectively use the low grade heat energy for being difficult to apply and reach energy saving purpose.
The system principle that existing electric vehicle uses, such as Fig. 1 include compressor 1, condenser 2, No.1 solenoid valve 3, the
One electric expansion valve 4, outdoor heat exchanger 5,6, No. two solenoid valves 7 of outdoor fan, the second electric expansion valve 8, evaporator 9, gas-liquid
Separator 10, air door 11, indoor fan 12.Automobile heat pump cycle does not have inverse circulation pattern, and heat exchanger substantially uses microchannel
Form, it is in other words, identical when refrigerant flow direction is used with it as evaporator when outdoor heat exchanger is as condenser, it needs
Condensation and evaporation effect are taken into account, is difficult to design most suitable pipeline arrangement.In order to improve the annual coefficient of performance, outdoor heat exchanger
The performance of evaporation conditions (heating mode) is paid the utmost attention to when circuit design.Air side fins shape and microchannel size are also preferential
It is designed according to evaporation conditions (heating mode).Therefore, condensation performance should reduce, because the design of most suitable condenser pipe is not
The evaporation being same as in MC-HEX (FMC).Fig. 2 is refrigeration mode, and Fig. 3 is heating mode, and Fig. 4 is the heat pattern again that dehumidifies, and is compared
In refrigeration mode, difference is that air door is opened, and the air for removing humidity is carried out reheating, improves indoor comfort degree.Vehicle
Not used the main reason for four-way reversing valve with system is, indoor heat exchanger switch mode when can generate water mist, influences to regard
Line leads to safety accident.
Chinese invention patent CN 101354200A discloses a kind of refrigerating heat pump circulatory system, includes at least compressor, room
Interior heat exchanger, throttle part, outdoor heat exchanger and changes in temperature four-way reversing valve, wherein the refrigerant inlet of compressor and refrigerant exit with
Two interfaces of changes in temperature four-way reversing valve connect, and the third interface of changes in temperature four-way reversing valve and one end of indoor heat exchanger connect
It connects, the other end of indoor heat exchanger is connect with throttle part, and throttle part is connected by the second four-way reversing valve and outdoor heat exchanger
It connects, the refrigerant inlet and refrigerant exit of outdoor heat exchanger are connect with two interfaces of the second four-way reversing valve, the commutation of the second four-way
The third interface of valve is connect with throttle part, the 4th interface of the second four-way reversing valve and the 4th of changes in temperature four-way reversing valve
A interface connection.
Summary of the invention
The utility model technical issues that need to address be to provide a kind of refrigeration heat pump system for taking into account evaporation and condensation and
Its control method.
In order to solve the above technical problems, a kind of Vehicular refrigeration heat pump system of the utility model, including outdoor heat exchanger,
The outdoor heat exchanger is divided into several subdivisions, and each subdivision is equipped with an import, one outlet；
Further include process switching device, each subdivision of process switching device control heat exchanger carry out it is in parallel or
It is used in series.
Preferably, the process switching device includes the combination of solenoid valve or solenoid valve and triple valve.
Preferably, the outdoor heat exchanger include two subdivisions, the process switching device include the first triple valve and
No. four solenoid valves, upstream refrigerant by the first threeway be divided into two stocks not with the first subdivision import and the second subdivision import
It is connected；Be provided with No. four solenoid valves between the second subdivision import and the first threeway, the second sub-portion sub-export with
Second threeway is connected；The outlet of first subdivision is connected to the import and the two or three of the second subdivision by the first triple valve
It is logical.
Preferably, the outdoor heat exchanger includes two subdivisions, and the process switching device includes solenoid valve, upstream system
Cryogen is divided into two stocks by the first threeway and is not connected with the first subdivision import and the second subdivision import；First son
Partial outlet is connected to the import of the second subdivision by the first solenoid valve, between the second subdivision import and the first threeway
No. four solenoid valves are provided with, the second sub-portion sub-export is connected with the second threeway；The outlet of first subdivision passes through
Second solenoid valve is connected to the second threeway.
Preferably, the outdoor heat exchanger is divided into two subdivisions, each subdivision separately include import A respectively and
B is exported, respectively 1A, 1B, 2A, 2B, the refrigerant of condensator outlet is connected to third threeway, third by the first electric expansion valve
Other two interface of threeway is connect respectively to 1B and 2A, and the refrigerant of condensator outlet is connect to 1A, simultaneously by No.1 solenoid valve
The interface of 1A is connected to compressor air suction mouth by No. three solenoid valves, and interface 2B is connected to compressor air suction mouth by No. two solenoid valves,
Interface 2B is connected to evaporator by the second electric expansion valve, and evaporator outlet is connected to compressor air suction mouth.
After adopting the above structure, the utility model is under condensing condition, and modified refrigerating capacity is about than original raising
15%, pressure drop increase about 19%；Under evaporation conditions, modified heating capacity than original about 9 % that improve, and pressure drop with
Originally almost the same.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of existing refrigeration heat pump system.
Fig. 2 is the operation schematic diagram of existing refrigeration heat pump system.
Fig. 3 is the operation schematic diagram of existing refrigeration heat pump system.
Fig. 4 is the dehumidifying reheating operation schematic diagram of existing refrigeration heat pump system.
Fig. 5 is the structural schematic diagram of one outdoor heat exchanger of the utility model embodiment.
Fig. 6 is operation schematic diagram of one outdoor heat exchanger of the utility model embodiment as condenser.
Fig. 7 is operation schematic diagram of one outdoor heat exchanger of the utility model embodiment as evaporator.
Fig. 8 is the structural schematic diagram of the utility model embodiment two.
Fig. 9 is the refrigeration work schematic diagram of the utility model embodiment two.
Figure 10 is the heating operation schematic diagram of the utility model embodiment two.
Figure 11 is the dehumidifying reheating operation schematic diagram of the utility model embodiment two.
In figure: 1 is compressor, and 2 be condenser, and 3 be No.1 solenoid valve, and 4 be the first electric expansion valve, and 5 be outdoor heat exchange
Device, 6 be outdoor fan, and 7 be No. two solenoid valves, and 8 be the second electric expansion valve, and 9 be evaporator, and 10 be gas-liquid separator, and 11 are
Air door, 12 be indoor fan, and 13 be No. three solenoid valves, and 51 be outdoor heat exchanger, and 52 be the first triple valve, and 53 be No. four electromagnetism
Valve, 54 be the first threeway, and 55 be the second threeway, and 58 be third threeway
Specific embodiment
Embodiment one:
As shown in figure 5, a kind of Vehicular refrigeration heat pump system of the utility model includes outdoor heat exchanger, it include compressor
1,6, No. two condenser 2, No.1 solenoid valve 3, the first electric expansion valve 4, outdoor heat exchanger 5, outdoor fan solenoid valves 7, second
Electric expansion valve 8, evaporator 9, gas-liquid separator 10, air door 11, indoor fan 12.The outdoor heat exchanger 5 divides for several sons
Part, each subdivision are equipped with an import, one outlet；It further include process switching device, the process switching device control
Each subdivision of heat exchanger is used in parallel or in series.
Process switching device includes the combination of solenoid valve and triple valve in the present embodiment, and the outdoor heat exchanger 51 includes
Two subdivisions, respectively the first subdivision 501 and the second subdivision 502.The process switching device includes the first triple valve
52 and No. four solenoid valves 53, upstream refrigerant by the first threeway 54 be divided to for two stocks not with 501 import of the first subdivision and the
Two subdivisions, 502 import is connected；No. four solenoid valves 53, institute are provided between the second subdivision import and the first threeway 54
The second sub-portion sub-export is stated to be connected with the second threeway 55；The outlet of first subdivision is connected to by the first triple valve 52
The import of second subdivision and the second threeway 55.
Certainly, the first triple valve 52 in the present embodiment can also be substituted by two solenoid valves, the first subdivision
Outlet is connected to the import of the second subdivision by a solenoid valve, is connected to second triple valve by another solenoid valve.Specifically
As follows: the outdoor heat exchanger includes two subdivisions, and the process switching device includes solenoid valve, and upstream refrigerant passes through the
One threeway 54 is divided to not to be connected with the first subdivision import and the second subdivision import for two stocks；First subdivision goes out
Mouth is connected to the import of the second subdivision by the first solenoid valve, is provided between the second subdivision import and the first threeway 54
No. four solenoid valves 53, the second sub-portion sub-export are connected with the second threeway 55；The outlet of first subdivision passes through the
Two solenoid valves are connected to the second threeway 55.
As shown in Figure 6 and Figure 7, in outdoor heat exchanger when being used as condenser, No. four closings of solenoid valves 53,
The movement of first triple valve 52 communicates the outlet of the first subdivision and the second threeway 55, and the flow direction of refrigerant is compressor air-discharging
Mouth → condenser → the first subdivision import → the first sub-portion sub-export → the second subdivision import → the second sub-portion sub-export →
Expansion valve → evaporator → compressor air suction mouth；When outdoor heat exchanger is used as evaporator, No. four solenoid valves 53 are beaten
Open, the movement of the first triple valve 52 communicates the outlet of the first subdivision and the second threeway 55, the flow direction of refrigerant is compressor
Exhaust outlet → condenser → expansion valve → first subdivision import and the second subdivision import → the first sub-portion sub-export and second
Sub-portion sub-export → compressor air suction mouth.
Embodiment two:
As shown in figure 8, the difference of embodiment two and implementation one is process switching device, the outdoor heat exchanger 5
It is divided into two subdivisions, respectively the first subdivision 501 and the second subdivision 502.Each subdivision separately includes import A respectively
With outlet B, respectively 501A, 501B, 502A, 502B, the refrigerant that condenser 2 exports is connected to by the first electric expansion valve 4
Third threeway 58, other two interface of third threeway 58 are connect respectively to 501B and 502A, and the refrigerant that condenser 2 exports passes through
No.1 solenoid valve 3 connects to 501A, while the interface of 501A is connected to 1 air entry of compressor by No. three solenoid valves 13, and interface 2B is logical
It crosses No. two solenoid valves 7 and is connected to 1 air entry of compressor, interface 502B is connected to 9 import of evaporator by the second electric expansion valve 8, steams
The outlet of hair device 9 is connected to 1 air entry of compressor.
As shown in Fig. 9, Figure 10 and Figure 11, in outdoor heat exchanger when using as condenser, No.1 solenoid valve 3 is beaten
Open, the shutdown of the first electric expansion valve 4, No. three solenoid valves 13 turn off, the flow direction of refrigerant be exhaust outlet of compressor → condenser →
3 → the first subdivision 501B mouthfuls → third of the 501A mouthfuls → first subdivision threeway of No.1 solenoid valve, 58 → the second subdivision 502A
→ the second subdivision 502B → 8 → evaporator of expansion valve → compressor air suction mouth；It is used in outdoor heat exchanger 5 as evaporator
When, second solenoid valve is closed, the first expansion valve is opened, third solenoid valve is opened, and the flow direction of refrigerant is exhaust outlet of compressor
→ condenser → the first expansion valve → first subdivision interface 501B and the second subdivision interface subdivision interface of 502A → first
501A and the second subdivision interface 502B → compressor air suction mouth.
Although those skilled in the art should manage the foregoing describe specific embodiment of the present utility model
Solution, these are merely examples, various changes or modifications can be made to present embodiment, without departing from the principle of utility model
And essence, the protection scope of the utility model are only limited by the claims that follow.
Claims (5)
1. a kind of Vehicular refrigeration heat pump system, including outdoor heat exchanger, it is characterised in that:
The outdoor heat exchanger is divided into several subdivisions, and each subdivision is equipped with an import, one outlet；
It further include process switching device, each subdivision of the process switching device control heat exchanger carries out in parallel or in series
It uses.
2. a kind of Vehicular refrigeration heat pump system described in accordance with the claim 1, it is characterised in that: the process switching device includes
The combination of solenoid valve or solenoid valve and triple valve.
3. a kind of Vehicular refrigeration heat pump system according to claim 2, it is characterised in that: the outdoor heat exchanger includes two
A subdivision, the process switching device include the first triple valve (52) and No. four solenoid valves (53), and upstream refrigerant passes through the
One threeway (54) is divided into two stocks and is not connected with the first subdivision import and the second subdivision import；Second subdivision into
No. four solenoid valves (53) are provided between mouth and the first threeway (54), the second sub-portion sub-export is connected with the second threeway (55)
It connects；The outlet of first subdivision is connected to the import and the second threeway (55) of the second subdivision by the first triple valve (52).
4. a kind of Vehicular refrigeration heat pump system according to claim 2, it is characterised in that: the outdoor heat exchanger includes two
A subdivision, the process switching device include solenoid valve, upstream refrigerant by the first threeway (54) be divided into two stocks not with
First subdivision import is connected with the second subdivision import；The outlet of first subdivision is connected to by the first solenoid valve
The import of two subdivisions is provided with No. four solenoid valves (53) between the second subdivision import and the first threeway (54), described
Second sub-portion sub-export is connected with the second threeway (55)；The outlet of first subdivision is connected to second by second solenoid valve
Threeway (55).
5. a kind of Vehicular refrigeration heat pump system according to claim 2, it is characterised in that: the outdoor heat exchanger is divided into
Two subdivisions, each subdivision separately include import A respectively and outlet B, respectively 1A, 1B, 2A, 2B, condenser (2) outlet
Refrigerant be connected to third threeway (58) by the first electric expansion valve (4), other two interface difference of third threeway (58)
It connects to 1B and 2A, the refrigerant of condenser (2) outlet is connect by No.1 solenoid valve (3) to 1A, while the interface of 1A passes through No. three
Solenoid valve (13) is connected to compressor (1) air entry, and interface 2B is connected to compressor (1) air entry, interface by No. two solenoid valves (7)
2B is connected to evaporator (9) import by the second electric expansion valve (8), and evaporator (9) outlet is connected to compressor (1) air entry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821072756.7U CN209022709U (en) | 2018-07-09 | 2018-07-09 | A kind of Vehicular refrigeration heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821072756.7U CN209022709U (en) | 2018-07-09 | 2018-07-09 | A kind of Vehicular refrigeration heat pump system |
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| Publication Number | Publication Date |
|---|---|
| CN209022709U true CN209022709U (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821072756.7U Active CN209022709U (en) | 2018-07-09 | 2018-07-09 | A kind of Vehicular refrigeration heat pump system |
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| CN (1) | CN209022709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621745A (en) * | 2018-07-09 | 2018-10-09 | 江苏科菱库精工科技有限公司 | A kind of Vehicular refrigeration heat pump system and its control method |
-
2018
- 2018-07-09 CN CN201821072756.7U patent/CN209022709U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621745A (en) * | 2018-07-09 | 2018-10-09 | 江苏科菱库精工科技有限公司 | A kind of Vehicular refrigeration heat pump system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191121 Address after: 214001 No.86, Guangqin 1st Road, Chongan District, Wuxi City, Jiangsu Province Patentee after: Xue Yan Address before: 213200, No. 99, Pioneer Road, Jinxi Industrial Park, Jintan District, Jiangsu, Changzhou Patentee before: Jiangsu fortune Seiko technology Co., Ltd. |
|
| TR01 | Transfer of patent right |