CN212485412U - Heat pump type water chilling unit for cooling battery pack of battery replacement station - Google Patents
Heat pump type water chilling unit for cooling battery pack of battery replacement station Download PDFInfo
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- CN212485412U CN212485412U CN202022512857.5U CN202022512857U CN212485412U CN 212485412 U CN212485412 U CN 212485412U CN 202022512857 U CN202022512857 U CN 202022512857U CN 212485412 U CN212485412 U CN 212485412U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to the technical field of refrigeration devices, in particular to heat pump type cooling water set for cooling battery packs of a switching station, which comprises a refrigerant system and a secondary refrigerant system, wherein the refrigerant system comprises a compressor, an air heat exchanger, a throttling mechanism, a plate heat exchanger and a four-way reversing valve; the secondary refrigerant system comprises a plate heat exchanger, a water pump, a water storage tank and a battery pack/water distribution unit, wherein the water pump is connected with the plate heat exchanger and the water storage tank, the water storage tank is connected with the battery pack/water distribution unit, and the battery pack/water distribution unit is connected with the plate heat exchanger. The utility model discloses heating cycle efficiency is higher to make the secondary refrigerant temperature rise to the requirement scope in short time, make the input that trades the power station can be faster and use.
Description
Technical Field
The utility model relates to a refrigerating plant technical field, in particular to trade power station battery package cooling with heat pump type cooling water set.
Background
The national requirements on oil consumption and energy conservation and environmental protection are higher and higher, higher requirements and challenges are brought to the automobile industry of oil-consuming households, the electric automobile is greatly supported and developed by the nation due to more energy conservation and environmental protection, and the occupation ratio of the electric automobile is gradually improved no matter the electric automobile is a private automobile or an operating vehicle.
At present, electric vehicles mainly adopt a charging mode to supplement electric energy, and a quick charging mode also needs about one hour, so that time is greatly wasted in the charging process of urban operation vehicles such as taxies and network taxi appointments. To solve this problem, a battery replacement method is proposed, which may replace the battery within several minutes, so as to achieve fast power replenishment, an energy-saving method of peak clipping and valley filling, and prolong the operation time. Due to the fact that the number of the battery packs of the battery replacement station is large, the use frequency is high, and the heat dissipation amount during charging is large, the cooling mode of the battery packs of the battery replacement station during charging is usually a water cooling mode. Meanwhile, the battery has a certain range requirement on the temperature inside the battery core during operation, and when the temperature is too low, the operation life of the core body is influenced, so that the cooling liquid needs to be heated to a certain temperature when the battery is started in winter.
The existing water chilling unit is relatively simple in structure, but the power of the unit is relatively high no matter the compressor runs or the electric heater runs, and meanwhile, due to the power limitation of the electric heater, the temperature rise of cooling liquid in the mode of the electric heater is relatively slow, and the waiting time is relatively long. Especially, when the outdoor environment temperature is relatively low, not only a relatively long heating time is required, but also the heating power consumption is relatively large, thereby causing a low energy utilization rate.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cooling water set in the correlation technique intensifies slower and the great problem of heating consumption, a heat pump type cooling water set is used in the cooling of power station battery package is proposed, open through the compressor, through the four-way reversing valve control, with the cooling of heat dissipation in refrigerant compression to plate heat exchanger, give secondary refrigerant with heat transfer, then flow through throttling mechanism throttle step-down cooling again, then flow in air heat exchanger heat absorption evaporation, flow back to the compressor through the four-way reversing valve at last, it is higher to adopt heating cycle efficiency winter, and can provide bigger heat dissipation capacity, thereby make the secondary refrigerant temperature rise to the requirement scope in shorter time, thereby make the input that the power station can be faster and use.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a heat pump type water chilling unit for cooling a battery pack of a power conversion station comprises:
the refrigerant system comprises a compressor, an air heat exchanger, a throttling mechanism, a plate heat exchanger and a four-way reversing valve, wherein the compressor is respectively connected with a port B and a port D of the four-way reversing valve;
the secondary refrigerant system comprises a plate heat exchanger, a water pump, a water storage tank and a battery pack water distribution unit, wherein the water pump is connected with a second inlet of the plate heat exchanger and the water storage tank, the water storage tank is connected with the battery pack water distribution unit, and the battery pack water distribution unit is connected with a second outlet of the plate heat exchanger.
Preferably, the coolant system further comprises an electric heater connected to the second outlet of the plate heat exchanger and the battery pack water diversion unit.
Preferably, the secondary refrigerant system further comprises an electric heater and a stop valve, and the stop valve is connected with the second outlet of the plate heat exchanger and the battery pack water distribution unit respectively after being connected with the electric heater in parallel.
Preferably, the coolant system further comprises an electric heater and a stop valve, and the stop valve and the electric heater are connected in series and then connected in parallel to the second inlet and the second outlet of the plate heat exchanger respectively.
Preferably, the coolant system further comprises an electric heater connected in series between the second inlet of the plate heat exchanger and the water pump.
Preferably, the coolant system further comprises an electric heater and a stop valve, and the stop valve is connected between the second inlet of the plate heat exchanger and the water pump after being connected with the electric heater in parallel.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a compressor is opened, through the four-way reversing valve control, with the cooling of dispelling the heat in refrigerant compression to plate heat exchanger, give secondary refrigerant with heat transfer, then flow through throttling mechanism throttle step-down cooling again, then flow in the heat absorption evaporation of air heat exchanger, flow back compressor through the four-way reversing valve at last, it is higher to adopt heating cycle efficiency winter, and can provide bigger heat dissipation capacity, thereby make the secondary refrigerant temperature rise to the requirement scope in shorter time, thereby make the input that trades the power station can be faster and use.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 3 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 4 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 5 of the present invention;
fig. 6 is a schematic structural diagram of embodiment 6 of the present invention.
In the figure:
1. the system comprises a compressor, 2, an air heat exchanger, 3, a throttling mechanism, 4, a plate heat exchanger, 5, a four-way reversing valve, 6, a water pump, 7, a water storage tank, 8, a battery pack water distribution unit, 9, an electric heater, 10 and a stop valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
Example 1
As shown in fig. 1, a heat pump type water chilling unit for cooling a battery pack of a power conversion station comprises a refrigerant system and a secondary refrigerant system, wherein the refrigerant system comprises a compressor 1, an air heat exchanger 2, a throttling mechanism 3, a plate heat exchanger 4 and a four-way reversing valve 5, the compressor 1 is respectively connected with a port B and a port D of the four-way reversing valve 5, the air heat exchanger 2 is connected with a port a of the four-way reversing valve 5 and the throttling mechanism 3, a first inlet of the plate heat exchanger 4 is connected with a port C of the four-way reversing valve 5, and the throttling mechanism 3 is connected with a first outlet of the plate heat exchanger 4; the secondary refrigerant system comprises a plate heat exchanger 4, a water pump 6, a water storage tank 7 and a battery pack water distribution unit 8, wherein the water pump 6 is connected with a second inlet of the plate heat exchanger 4 and the water storage tank 7, the water storage tank 7 is connected with the battery pack water distribution unit 8, and the battery pack water distribution unit 8 is connected with a second outlet of the plate heat exchanger 4.
Example 2
As shown in fig. 2, unlike embodiment 1, the coolant system further includes an electric heater 9, and the electric heater 9 is connected to the second outlet of the plate heat exchanger 4 and the battery pack water-dividing unit 8.
Example 3
As shown in fig. 3, unlike embodiment 1, the coolant system further includes an electric heater 9 and a stop valve 10, and the stop valve 10 is connected in parallel with the electric heater 9 and then connected to the second outlet of the plate heat exchanger 4 and the battery pack water diversion unit 8, respectively.
Example 4
As shown in fig. 4, unlike embodiment 1, the coolant system further includes an electric heater 9 and a shutoff valve 10, and the shutoff valve 10 is connected in series with the electric heater 9 and then connected in parallel to the second inlet and the second outlet of the plate heat exchanger 4, respectively.
Example 5
As shown in fig. 5, unlike embodiment 1, the coolant system further includes an electric heater 9, and the electric heater 9 is connected in series between the second inlet of the plate heat exchanger 4 and the water pump 6.
Example 6
As shown in fig. 6, unlike embodiment 1, the coolant system further includes an electric heater 9 and a stop valve 10, and the stop valve 10 is connected between the second inlet of the plate heat exchanger 4 and the water pump 6 in parallel with the electric heater 9.
The specific working principle is as follows:
in summer, when refrigeration is needed, a refrigeration cycle is adopted, the compressor 1 is started, the four-way reversing valve 5 is used for controlling, the refrigerant is compressed into the air heat exchanger 2 to be condensed according to the flow direction of arrows D → A and C → B in the figure 1, then flows through the throttling mechanism 3 for throttling, pressure reduction and temperature reduction, then flows into the plate heat exchanger 4 for heat exchange with the secondary refrigerant, and finally flows back to the compressor 2 through the four-way reversing valve 5.
In winter, when heating is needed, a heating cycle is adopted, the compressor 1 is started, the four-way reversing valve 5 is used for controlling, the refrigerant flows in the directions of arrows A → B and D → C in the figure 1, the refrigerant is compressed into the plate type heat exchanger 4 for heat dissipation and cooling, heat is transferred to the secondary refrigerant, then the secondary refrigerant flows through the throttling mechanism 3 for throttling, pressure reduction and temperature reduction, then flows into the air heat exchanger 2 for heat absorption and evaporation, and finally flows back to the compressor 2 through the four-way reversing valve 5. The heating cycle adopted in winter has higher efficiency and can provide larger heat dissipation capacity, so that the temperature of the secondary refrigerant is increased to a required range in a shorter time, and the power station can be put into use more quickly.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a trade power station battery package cooling with heat pump type cooling water set which characterized in that includes:
the refrigerant system comprises a compressor (1), an air heat exchanger (2), a throttling mechanism (3), a plate heat exchanger (4) and a four-way reversing valve (5), wherein the compressor (1) is respectively connected with a port B and a port D of the four-way reversing valve (5), the air heat exchanger (2) is connected with a port A of the four-way reversing valve (5) and the throttling mechanism (3), a first inlet of the plate heat exchanger (4) is connected with a port C of the four-way reversing valve (5), and the throttling mechanism (3) is connected with a first outlet of the plate heat exchanger (4);
the secondary refrigerant system comprises a plate type heat exchanger (4), a water pump (6), a water storage tank (7) and a battery pack water distribution unit (8), wherein the water pump (6) is connected with a second inlet of the plate type heat exchanger (4) and the water storage tank (7), the water storage tank (7) is connected with the battery pack water distribution unit (8), and the battery pack water distribution unit (8) is connected with a second outlet of the plate type heat exchanger (4).
2. The heat pump type water chilling unit for cooling the battery pack of the battery changing station according to claim 1, wherein: the secondary refrigerant system also comprises an electric heater (9), and the electric heater (9) is connected with the second outlet of the plate heat exchanger (4) and the battery pack water diversion unit (8).
3. The heat pump type water chilling unit for cooling the battery pack of the battery changing station according to claim 1, wherein: the secondary refrigerant system also comprises an electric heater (9) and a stop valve (10), wherein the stop valve (10) is connected with the electric heater (9) in parallel and then is respectively connected with a second outlet of the plate heat exchanger (4) and the battery pack water distribution unit (8).
4. The heat pump type water chilling unit for cooling the battery pack of the battery changing station according to claim 1, wherein: the secondary refrigerant system also comprises an electric heater (9) and a stop valve (10), wherein the stop valve (10) is connected with the electric heater (9) in series and then is respectively connected with a second inlet and a second outlet of the plate heat exchanger (4) in parallel.
5. The heat pump type water chilling unit for cooling the battery pack of the battery changing station according to claim 1, wherein: the secondary refrigerant system also comprises an electric heater (9), and the electric heater (9) is connected between the second inlet of the plate heat exchanger (4) and the water pump (6) in series.
6. The heat pump type water chilling unit for cooling the battery pack of the battery changing station according to claim 1, wherein: the secondary refrigerant system also comprises an electric heater (9) and a stop valve (10), wherein the stop valve (10) is connected in parallel with the electric heater (9) and then is connected between the second inlet of the plate heat exchanger (4) and the water pump (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022512857.5U CN212485412U (en) | 2020-11-04 | 2020-11-04 | Heat pump type water chilling unit for cooling battery pack of battery replacement station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022512857.5U CN212485412U (en) | 2020-11-04 | 2020-11-04 | Heat pump type water chilling unit for cooling battery pack of battery replacement station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212485412U true CN212485412U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022512857.5U Active CN212485412U (en) | 2020-11-04 | 2020-11-04 | Heat pump type water chilling unit for cooling battery pack of battery replacement station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212485412U (en) |
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2020
- 2020-11-04 CN CN202022512857.5U patent/CN212485412U/en active Active
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