CN221041274U - Temperature control system for energy storage equipment - Google Patents
Temperature control system for energy storage equipment Download PDFInfo
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- CN221041274U CN221041274U CN202322751469.6U CN202322751469U CN221041274U CN 221041274 U CN221041274 U CN 221041274U CN 202322751469 U CN202322751469 U CN 202322751469U CN 221041274 U CN221041274 U CN 221041274U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 179
- 239000007788 liquid Substances 0.000 claims abstract description 172
- 238000007654 immersion Methods 0.000 claims abstract description 139
- 230000017525 heat dissipation Effects 0.000 claims abstract description 49
- 238000005057 refrigeration Methods 0.000 claims abstract description 30
- 230000000712 assembly Effects 0.000 claims abstract description 3
- 238000000429 assembly Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000020169 heat generation Effects 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 18
- 239000000110 cooling liquid Substances 0.000 description 12
- 230000004907 flux Effects 0.000 description 11
- 239000002826 coolant Substances 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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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 provides a temperature control system for energy storage equipment, which comprises a battery module and other energy storage components except the battery module, wherein the battery module is connected with the energy storage equipment; the temperature control system comprises a controller, a refrigerating system, an immersing system and a liquid cooling plate system; the controller is respectively connected with the refrigerating system, the immersing system and the liquid cooling plate system in a control way; the refrigerating system is connected with the immersion system through the first plate heat exchanger, and is connected with the liquid cooling plate system through the second plate heat exchanger; the first plate heat exchanger and the second plate heat exchanger are arranged in parallel in the refrigeration system; the immersion system is provided with an immersion box, the liquid cooling plate system is provided with a liquid cooling plate assembly, the battery module is immersed in the immersion box, and at least part of other energy storage assemblies are in contact with the liquid cooling plate assembly. The temperature control system adopts different heat dissipation modes according to different heat generation amounts of different components in the energy storage equipment, so that the cooling load is reasonably distributed, the heat dissipation effect is good, and the energy consumption is low.
Description
Technical Field
The invention relates to the field of temperature control, in particular to a temperature control system for energy storage equipment.
Background
The energy storage device can store electric energy and is widely applied to various scenes such as a power generation side, a power transmission and distribution side, a power utilization side and the like. With the continuous development of energy storage technology in recent years, the energy storage device stores energy and outputs power increasingly, the heat generated in the working process is high, and in order to maintain the energy storage device to operate in a safe range with high efficiency, the temperature control of the energy storage device by searching a heat dissipation mode with strong heat dissipation capability is not slow.
In the temperature control, an air cooling heat dissipation mode, a liquid cooling plate heat dissipation mode and a submerged heat dissipation mode are widely and well-established; the air cooling heat dissipation mode has the problems of low heat dissipation efficiency, poor temperature control uniformity, low energy efficiency ratio and the like, the liquid cooling plate heat dissipation mode has the problems of large contact thermal resistance, small heat exchange area and incapability of meeting the larger heat flux environment, and the immersed heat dissipation mode has the problems of uniform heat dissipation, high speed, large consumption of cooling liquid and high cost. At present, most energy storage devices are controlled by adopting a single heat dissipation mode, for example, in the Chinese patent No. CN218887311U, only an air cooling heat dissipation mode is adopted for temperature control, and in the Chinese patent No. CN212783590U, only an immersion cooling mode is adopted for temperature control. Because the heat flux density of the battery module in the energy storage equipment is larger, and the heat flux density of other energy storage components except the battery module is smaller, a single heat dissipation mode is adopted, so that unreasonable cold load distribution is easily caused, and the heat dissipation effect is poor and the energy consumption is increased.
Therefore, it is necessary to provide a temperature control system with a reasonable design to solve the above-mentioned problems.
Disclosure of utility model
In order to solve the technical problems in the prior art, the utility model provides a temperature control system for energy storage equipment, which adopts different heat dissipation modes aiming at different components in the energy storage equipment, so that the cooling load is reasonably distributed, the heat dissipation effect is good, and the energy consumption is low.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
A temperature control system for an energy storage device comprising a battery module, and other energy storage components other than the battery module; the temperature control system comprises a controller, a refrigerating system, an immersing system and a liquid cooling plate system; the controller is respectively connected with the refrigerating system, the immersing system and the liquid cooling plate system in a control way; the refrigerating system is connected with the immersion system through a first plate heat exchanger, and is connected with the liquid cooling plate system through a second plate heat exchanger; the first plate heat exchanger and the second plate heat exchanger are arranged in parallel in the refrigeration system; the battery module is immersed in the immersion box, and at least part of other energy storage components are in contact with the liquid cooling plate assembly.
Further, the refrigerating system comprises a gas-liquid separator, a compressor, a condenser, a liquid storage tank and a first filter which are sequentially connected, wherein a cold side inlet of the first plate heat exchanger and a cold side inlet of the second plate heat exchanger are connected with the first filter, a cold side outlet of the first plate heat exchanger and a cold side outlet of the second plate heat exchanger are connected with the gas-liquid separator, a first electronic expansion valve is arranged between the first filter and the cold side inlet of the first plate heat exchanger, and a second electronic expansion valve is arranged between the first filter and the cold side inlet of the second plate heat exchanger.
Further, at least one place among the cold side outlet of the first plate heat exchanger and the gas-liquid separator, the cold side outlet of the second plate heat exchanger and the gas-liquid separator, the compressor and the condenser, and the liquid storage tank and the first filter is provided with a temperature sensor.
Further, a low pressure sensor is arranged at the inlet end of the compressor, a high pressure sensor is arranged at the outlet end of the compressor, and a pressure switch is arranged between the high pressure sensor and the condenser.
Further, the immersion system comprises an immersion main path, an immersion heat dissipation branch path and an immersion heating branch path; the immersion main path comprises a second filter, a first expansion tank, a first hydraulic pump, a first electromagnetic valve, an immersion tank and a second electromagnetic valve which are sequentially connected, a hot side inlet of the first plate heat exchanger is connected with the second electromagnetic valve, and a hot side outlet of the first plate heat exchanger is connected with the second filter; the inlet end of the immersed radiating branch is arranged between the second electromagnetic valve and the immersed tank, and the outlet end of the immersed radiating branch is arranged between the hot side outlet of the first plate heat exchanger and the second filter; the immersed heating branch is connected with the first electromagnetic valve in parallel; the immersed radiating branch comprises a third electromagnetic valve and a first radiator which are sequentially arranged; the submerged heating branch comprises an electric heater.
Further, a first check valve is arranged between the first hydraulic pump and the first electromagnetic valve; a first flow switch is arranged between the outlet end of the immersed radiating branch and the second filter; at least one place among the second filter, the first expansion tank, the first one-way valve, the first electromagnetic valve and the second electromagnetic valve and the immersion tank is provided with a pressure sensor; the inlet end and/or the outlet end of the immersion tank are/is provided with a temperature sensor.
Further, a shut-off valve is provided at least one of between the second filter and the first expansion tank, between the first solenoid valve and the immersion tank, between the immersion tank and the second solenoid valve, and between the first flow switch and the second filter.
Further, the liquid cooling plate system comprises a liquid cooling plate main path and a liquid cooling plate heat dissipation branch path; the liquid cooling plate main path comprises a third filter, a second expansion tank, a second hydraulic pump, the liquid cooling plate assembly and a fourth electromagnetic valve which are sequentially connected, a hot side inlet of the second plate heat exchanger is connected with the fourth electromagnetic valve, and a hot side outlet of the second plate heat exchanger is connected with the third filter; the inlet end of the liquid cooling plate heat dissipation branch is arranged between the fourth electromagnetic valve and the liquid cooling plate assembly, and the outlet end of the liquid cooling plate heat dissipation branch is arranged between the hot side outlet of the second plate heat exchanger and the third filter; the liquid cooling plate radiating branch circuit comprises a fifth electromagnetic valve and a second radiator which are sequentially arranged.
Further, a second one-way valve is arranged between the second hydraulic pump and the liquid cooling plate assembly; a second flow switch is arranged between the outlet end of the liquid cooling plate heat dissipation branch and the third filter; at least one place among the third filter, the second expansion tank, the second one-way valve, the liquid cooling plate assembly and the fourth electromagnetic valve and the liquid cooling plate assembly is provided with a pressure sensor; and a temperature sensor is arranged at the inlet end and/or the outlet end of the liquid cooling plate assembly.
Further, a shut-off valve is provided between at least one of the third filter and the second expansion tank, between the second check valve and the liquid cooling plate assembly, between the liquid cooling plate assembly and the fourth solenoid valve, and between the second flow switch and the third filter.
The beneficial effects of the utility model are as follows:
(1) Through setting up immersion system and liquid cooling board system in temperature control system, set up the great battery module of heat flux density in immersion system's immersion case, set up other energy storage subassembly that heat flux density is less into the liquid cooling board subassembly contact in the liquid cooling board system, on the one hand can evenly, dispel the heat to the battery module fast through immersion system, guarantee the radiating effect, on the other hand contacts with other energy storage subassemblies through the liquid cooling board subassembly, can effectively reduce the volume of immersion case and reduce the quantity of coolant liquid in the immersion case, thereby on guaranteeing abundant radiating basis, be favorable to furthest saving energy consumption and cost.
(2) The cold side of the first plate heat exchanger and the cold side of the second plate heat exchanger are arranged in parallel in the refrigeration system, the hot side of the first plate heat exchanger is connected with the immersion system, and the hot side of the second plate heat exchanger is connected with the liquid cooling plate system, so that the immersion system and the liquid cooling plate system share one refrigeration system, the temperature control system can be simplified, and the space and the cost can be saved.
(3) The immersion system is provided with four modes, namely an immersion refrigeration mode, an immersion heat dissipation mode, an immersion self-circulation mode and an immersion heating mode, and enters different modes according to specific cooling requirements and heating requirements of the battery module; therefore, the temperature requirement of the battery module can be better met, and the energy consumption is saved.
(4) The liquid cooling plate system has three modes, namely a liquid cooling plate refrigerating mode, a liquid cooling plate radiating mode and a liquid cooling plate self-circulation mode, and enters different modes according to specific cooling requirements of other energy storage components; therefore, the temperature requirements of other energy storage components can be better met, and the energy consumption is saved.
Drawings
FIG. 1 is a schematic diagram of a temperature control system according to the present utility model.
Fig. 2 is a schematic structural diagram of the refrigeration system of the present utility model.
FIG. 3 is a schematic view of the direction of flow of coolant when the immersion system of the present utility model is in an immersion refrigeration mode and an immersion self-circulation mode.
FIG. 4 is a schematic view of the coolant flow direction of the immersion system of the present utility model in an immersion heat dissipation mode.
FIG. 5 is a schematic view of the coolant flow direction when the immersion system of the present utility model is in an immersion heating mode.
Fig. 6 is a schematic diagram of the flow direction of the cooling liquid when the liquid cooling plate system of the present utility model is in the liquid cooling plate cooling mode and the liquid cooling plate self-circulation mode.
Fig. 7 is a schematic diagram of the cooling liquid flowing direction when the liquid cooling plate system of the present utility model is in the liquid cooling plate heat dissipating mode.
Reference numerals illustrate:
100-battery module, 1-refrigeration system, 11-gas-liquid separator, 12-compressor, 13-condenser, 14-liquid storage tank, 15-first filter, 16-first electronic expansion valve, 17-second electronic expansion valve, 18-low pressure sensor, 19-high pressure sensor, 2-immersion system, 20-immersion tank, 21-second filter, 22-first expansion tank, 23-first hydraulic pump, 24-first solenoid valve, 25-second solenoid valve, 26-third solenoid valve, 27-first radiator, 28-electric heater, 29-first check valve, 210-first flow switch, 3-liquid cooling plate system, 30-liquid cooling plate assembly, 31-third filter, 32-second expansion tank, 33-second hydraulic pump, 34-fourth solenoid valve, 35-fifth solenoid valve, 36-second radiator, 37-second one-way valve, 38-second flow switch, 4-first plate heat exchanger, 41-cold side inlet of first plate heat exchanger, 42-cold side outlet of first plate heat exchanger, 43-hot side inlet of first plate heat exchanger, 44-hot side outlet of first plate heat exchanger, 5-second plate heat exchanger, 51-cold side inlet of second plate heat exchanger, 52-cold side outlet of second plate heat exchanger, 53-hot side inlet of second plate heat exchanger, 54-hot side outlet of second plate heat exchanger, 6-temperature sensor, 7-pressure sensor, 8-stop valve.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention.
Example 1
Referring to fig. 1-7, a temperature control system for an energy storage device including a battery module 100, and other energy storage components in addition to the battery module; the temperature control system comprises a controller, a refrigerating system 1, an immersing system 2 and a liquid cooling plate system 3; the controller is respectively in control connection with the refrigerating system 1, the immersing system 2 and the liquid cooling plate system 3; the refrigeration system 1 is connected with the immersion system 2 through a first plate heat exchanger 4, and the refrigeration system 1 is connected with the liquid cooling plate system 3 through a second plate heat exchanger 5; the first plate heat exchanger 4 and the second plate heat exchanger 5 are arranged in parallel in the refrigeration system 1; the immersion system is provided with an immersion box 20, the liquid cooling plate system 3 is provided with a liquid cooling plate assembly 30, the battery module 100 is immersed in the immersion box 20, and at least part of other energy storage assemblies are in contact with the liquid cooling plate assembly 30.
In this embodiment, by arranging the immersion system 2 and the liquid cooling plate system 3 in the temperature control system, the battery module 100 with higher heat flux density is arranged in the immersion tank 20 of the immersion system 2, other energy storage components with lower heat flux density are arranged to be in contact with the liquid cooling plate component 30 in the liquid cooling plate system 3, and the immersion system 2 and the liquid cooling plate system 3 share one set of refrigeration system 1, on one hand, the battery module 100 can be uniformly and quickly cooled through the immersion system 2, so as to ensure the heat dissipation effect, and on the other hand, the liquid cooling plate component 30 is contacted with other energy storage components, so that the volume of the immersion tank 20 can be effectively reduced, the consumption of cooling liquid in the immersion tank 20 can be reduced, and the temperature control system can be simplified and the space can be saved by sharing one set of refrigeration system 1. Through the reasonable arrangement of the temperature control system in the embodiment, the cold load can be reasonably distributed between the battery module 100 with larger heat flux density and other energy storage components with smaller heat flux density, so that the energy consumption and the cost are saved to the greatest extent on the basis of ensuring sufficient heat dissipation.
Example 2
Referring to fig. 2, the refrigeration system 1 includes a gas-liquid separator 11, a compressor 12, a condenser 13, a liquid storage tank 14, and a first filter 15, where a cold side inlet 41 of the first plate heat exchanger and a cold side inlet 51 of the second plate heat exchanger are connected to the first filter 15, a cold side outlet 42 of the first plate heat exchanger and a cold side outlet 52 of the second plate heat exchanger are connected to the gas-liquid separator 11, a first electronic expansion valve 16 is disposed between the first filter 15 and the cold side inlet 41 of the first plate heat exchanger, and a second electronic expansion valve 17 is disposed between the first filter 15 and the cold side inlet 51 of the second plate heat exchanger.
Preferably, a temperature sensor 6 is provided at least one of between the cold side outlet 42 of the first plate heat exchanger and the gas-liquid separator 11, between the cold side outlet 52 of the second plate heat exchanger and the gas-liquid separator 11, between the compressor 12 and the condenser 13, and between the liquid storage tank 14 and the first filter 15.
Preferably, the inlet end of the compressor 12 is provided with a low pressure sensor 18, the outlet end of the compressor 12 is provided with a high pressure sensor 19, and a pressure switch 10 is arranged between the high pressure sensor 19 and the condenser 13.
In this embodiment, the cold side of the first plate heat exchanger and the cold side of the second plate heat exchanger are arranged in parallel in the refrigeration system 1, and then the hot side of the first plate heat exchanger is connected with the immersion system 2, and the hot side of the second plate heat exchanger is connected with the liquid cooling plate system 3, so that the immersion system 2 and the liquid cooling plate system 3 share one set of refrigeration system 1, and the temperature control system can be simplified, and the space and the cost can be saved. And be provided with first electronic expansion valve 16 in the cold side entry 41 side of first plate heat exchanger, be provided with second electronic expansion valve 17 in the cold side entry 51 side of second plate heat exchanger, first electronic expansion valve 16 can be according to the cooling demand of immersion system 2 and adjust the flow of refrigerating medium, second electronic expansion valve 17 can be according to the cooling demand of liquid cooling board system 3 and adjust the flow of refrigerating medium, thereby can be according to the cooling demand of different parts in the energy storage equipment in the practical application and adjust the cold load that gets into in immersion system 2 and liquid cooling board system 3 in real time, make the cold load can be in the great battery module 100 of heat flux density and other energy storage components that heat flux density is less reasonable distribution, guarantee to the each part of energy storage equipment fully cool and prevent the cold load extravagant, energy consumption and cost are saved.
The refrigerant in the refrigerating system 1 enters the cold side inlet 41 of the first plate heat exchanger through the first electronic expansion valve 16, enters the cold side inlet 51 of the second plate heat exchanger through the second electronic expansion valve 17, exchanges heat with the immersion system 2 in the first plate heat exchanger 4, exchanges heat with the liquid cooling plate system 3 in the second plate heat exchanger 5, and flows out from the cold side outlet 42 of the first plate heat exchanger and the cold side outlet 52 of the second plate heat exchanger, and then sequentially runs along the gas-liquid separator 11, the compressor 12, the condenser 13, the liquid storage tank 14 and the first filter 15 to form a refrigerating loop.
Example 3
Referring to fig. 3-5, the immersion system 2 includes an immersion main circuit, an immersion heat dissipation circuit, and an immersion heating circuit; the immersion main path comprises a second filter 21, a first expansion tank 22, a first hydraulic pump 23, a first electromagnetic valve 24, the immersion tank 20 and a second electromagnetic valve 25 which are sequentially connected, a hot side inlet 43 of the first plate heat exchanger is connected with the second electromagnetic valve 25, and a hot side outlet 44 of the first plate heat exchanger is connected with the second filter 21; the inlet end of the immersed radiating branch is arranged between the second electromagnetic valve 25 and the immersed tank 20, and the outlet end of the immersed radiating branch is arranged between the hot side outlet 44 of the first plate heat exchanger and the second filter 21; the submerged heating branch is arranged in parallel with the first solenoid valve 24; the immersed radiating branch comprises a third electromagnetic valve 26 and a first radiator 27 which are sequentially arranged; the submerged heating branch comprises an electric heater 28.
Preferably, a first check valve 29 is provided between the first hydraulic pump 23 and the first solenoid valve 24; a first flow switch 210 is arranged between the outlet end of the immersed radiating branch and the second filter 21; a pressure sensor 7 is provided between at least one of the second filter 21 and the first expansion tank 22, the first check valve 29 and the first solenoid valve 24, and the second solenoid valve 25 and the immersion tank 20; the inlet and/or outlet end of the immersion tank is provided with a temperature sensor 6.
Preferably, a shut-off valve 8 is provided between at least one of the second filter 21 and the first expansion tank 22, the first solenoid valve 24 and the immersion tank 20, the immersion tank 20 and the second solenoid valve 25, and the first flow switch 210 and the second filter 21. Through setting up stop valve 8 between each part, when certain part breaks down, close the pipeline through stop valve 8, the change and the maintenance of the part of being convenient for reduce the leakage of secondary refrigerant.
In the embodiment, the hot side of the first plate heat exchanger is arranged in the immersion system 2, and the immersion system 2 exchanges heat with the refrigeration system 1 through the first plate heat exchanger 4 to realize refrigeration of the immersion system 2; the immersion system 2 is also provided with an immersion heat dissipation branch and an immersion heating branch so that the immersion system has different modes; specifically, the immersion system in this embodiment has four modes, namely, an immersion refrigeration mode, an immersion heat dissipation mode, an immersion self-circulation mode and an immersion heating mode, and the immersion system enters different modes according to specific cooling requirements and heating requirements of the battery module 100; so that the temperature requirement of the battery module 100 can be better satisfied. Since the battery module needs to be immersed in the coolant, the coolant used must be a non-conductive liquid, such as mineral oil.
When the immersion system 2 enters an immersion refrigeration mode, the first electronic expansion valve 16, the first electromagnetic valve 24 and the second electromagnetic valve 25 are all opened, the third electromagnetic valve 26 and the electric heater 28 are all closed, the secondary refrigerant in the immersion system flows out of the immersion tank 20, passes through the second electromagnetic valve 25 and enters the hot side inlet 43 of the first plate heat exchanger, exchanges heat with the refrigeration system 1 in the first plate heat exchanger 4, flows out of the hot side outlet 44 of the first plate heat exchanger, and then sequentially runs along the first flow switch 210, the second filter 21, the first expansion tank 22, the first hydraulic pump 23, the first electromagnetic valve 24 or the electric heater 28 and the immersion tank 20, and the secondary refrigerant flows through the first electromagnetic valve 24 and partially flows through the electric heater 28, and the electric heater 28 does not heat the secondary refrigerant to form an immersion refrigeration loop;
When the immersion system 2 enters an immersion heat dissipation mode, the first electromagnetic valve 24 and the third electromagnetic valve 26 are both opened, the first electronic expansion valve 16, the second electromagnetic valve 25 and the electric heater 28 are all closed, the secondary refrigerant in the immersion system flows out of the immersion tank 20, enters the first radiator 27 through the third electromagnetic valve 26, dissipates heat in the first radiator 27, and sequentially runs along the first flow switch 210, the second filter 21, the first expansion tank 22, the first hydraulic pump 23, the first electromagnetic valve 24 or the electric heater 28 and the immersion tank 20, the secondary refrigerant flows through the first electromagnetic valve 24 and the electric heater 28, and the electric heater 28 does not heat the secondary refrigerant to form an immersion heat dissipation loop;
When the immersion system 2 enters the immersion self-circulation mode, the first electromagnetic valve 24 and the second electromagnetic valve 25 are both opened, the first electronic expansion valve 16, the third electromagnetic valve 26 and the electric heater 28 are all closed, the secondary refrigerant in the immersion system flows out of the immersion tank 20, passes through the second electromagnetic valve 25 and enters the hot side inlet 43 of the first plate heat exchanger, and as the first electronic expansion valve 16 is closed, the secondary refrigerant does not exchange heat in the first plate heat exchanger 4, and directly flows out of the hot side outlet 44 of the first plate heat exchanger, and then sequentially runs along the first flow switch 210, the second filter 21, the first expansion tank 22, the first hydraulic pump 23, the first electromagnetic valve 24 or the electric heater 28 and the immersion tank 20, and the secondary refrigerant flows through the first electromagnetic valve 24 and the electric heater 28, so that the secondary refrigerant is not heated by the electric heater 28 to form an immersion self-circulation loop;
When the immersion system enters the immersion heating mode, the electric heater 28 and the second electromagnetic valve 25 are both opened, the first electronic expansion valve 16, the first electromagnetic valve 24 and the third electromagnetic valve 26 are all closed, the secondary refrigerant in the immersion system flows out of the immersion tank 20 and enters the hot side inlet 43 of the first plate heat exchanger through the second electromagnetic valve 25, the secondary refrigerant does not exchange heat in the first plate heat exchanger 4 because the first electronic expansion valve 16 is closed, the secondary refrigerant directly flows out of the hot side outlet 44 of the first plate heat exchanger, and then sequentially runs along the first flow switch 210, the second filter 21, the first expansion tank 22, the first hydraulic pump 23, the electric heater 28 and the immersion tank 20, and the secondary refrigerant flows through the electric heater 28, so that the secondary refrigerant is heated by the electric heater 28 to form an immersion heating loop. When the ambient temperature is low, in order to prevent the temperature of the battery module from being too low and affecting the operation of the battery module, the immersion system enters an immersion heating mode, the electric heater 28 is turned on, the heated secondary refrigerant enters the immersion tank 20, the battery module in the immersion tank 20 is maintained at a proper temperature, and the battery module is ensured to be in normal operation even at a low ambient temperature.
Example 4
Referring to fig. 6-7, the liquid cooling plate system comprises a liquid cooling plate main path and a liquid cooling plate heat dissipation branch path; the liquid cooling plate main path comprises a third filter 31, a second expansion tank 32, a second hydraulic pump 33, the liquid cooling plate assembly 30 and a fourth electromagnetic valve 34 which are sequentially connected, a hot side inlet 53 of the second plate heat exchanger is connected with the fourth electromagnetic valve 34, and a hot side outlet 54 of the second plate heat exchanger is connected with the third filter 31; the inlet end of the liquid cooling plate heat dissipation branch is arranged between the fourth electromagnetic valve 34 and the liquid cooling plate assembly 30, and the outlet end of the liquid cooling plate heat dissipation branch is arranged between the hot side outlet 54 of the second plate heat exchanger and the third filter 31; the liquid cooling plate heat dissipation branch circuit comprises a fifth electromagnetic valve 35 and a second radiator 36 which are sequentially arranged.
Preferably, a second check valve 37 is disposed between the second hydraulic pump 33 and the liquid cooling plate assembly 30; a second flow switch 38 is arranged between the outlet end of the liquid cooling plate heat dissipation branch and the third filter 31; a pressure sensor 7 is provided between at least one of the third filter 31 and the second expansion tank 32, between the second check valve 37 and the liquid cooling plate assembly 30, and between the fourth electromagnetic valve 34 and the liquid cooling plate assembly 30; the inlet and/or outlet ends of the liquid cooling plate assembly 30 are provided with temperature sensors 6.
Preferably, a stop valve 8 is provided between at least one of the third filter 31 and the second expansion tank 32, the second check valve 37 and the liquid cooling plate assembly 30, the liquid cooling plate assembly 30 and the fourth solenoid valve 34, and the second flow switch 38 and the third filter 31. Through setting up stop valve 8 between each part, when certain part breaks down, close the pipeline through stop valve 8, the change and the maintenance of the part of being convenient for reduce the leakage of coolant liquid.
In the embodiment, the hot side of the second plate heat exchanger is arranged in the liquid cooling plate system 3, and the liquid cooling plate system 3 exchanges heat with the refrigerating system 1 through the second plate heat exchanger 5 to realize the refrigeration of the liquid cooling plate system 3; the immersion system 2 is also provided with a liquid cooling plate radiating branch so that the liquid cooling plate system 3 has different modes; specifically, the liquid cooling plate system in the embodiment has three modes, namely a liquid cooling plate refrigeration mode, a liquid cooling plate heat dissipation mode and a liquid cooling plate self-circulation mode, and the liquid cooling plate system enters different modes according to specific cooling requirements of other energy storage components; thereby being capable of better meeting the temperature requirements of other energy storage components. The liquid cooling plate system is specifically a water cooling plate system, and the cooling liquid in the liquid cooling plate system is specifically water.
When the liquid cooling plate system 3 enters a liquid cooling plate refrigeration mode, the second electronic expansion valve 17 and the fourth electromagnetic valve 34 are both opened, the fifth electromagnetic valve 35 is closed, cooling liquid in the liquid cooling plate system flows out of the liquid cooling plate assembly 30, enters a hot side inlet 53 of the second plate heat exchanger through the fourth electromagnetic valve 34, exchanges heat with the refrigeration system 1 in the second plate heat exchanger 5, and flows out of a hot side outlet 54 of the second plate heat exchanger, and then sequentially runs along the second flow switch 38, the third filter 31, the second expansion tank 32, the second hydraulic pump 33 and the liquid cooling plate assembly 30 to form a liquid cooling plate refrigeration loop;
When the liquid cooling plate system 3 enters a liquid cooling plate heat dissipation mode, the fifth electromagnetic valve 35 is opened, the second electronic expansion valve 17 and the fourth electromagnetic valve 34 are both closed, cooling liquid in the liquid cooling plate system flows out of the liquid cooling plate assembly 30, enters the second radiator 36 through the fifth electromagnetic valve 35, dissipates heat in the second radiator 36, and the cooling liquid after heat dissipation sequentially runs along the second flow switch 38, the third filter 31, the second expansion tank 32, the second hydraulic pump 33 and the liquid cooling plate assembly 30 to form a liquid cooling plate heat dissipation loop;
When the liquid cooling plate system 3 enters the liquid cooling plate self-circulation mode, the fourth electromagnetic valve 34 is opened, the second electronic expansion valve 17 and the fifth electromagnetic valve 35 are closed, the cooling liquid in the liquid cooling plate system flows out of the liquid cooling plate assembly 30 and enters the hot side inlet 53 of the second plate heat exchanger through the fourth electromagnetic valve 34, the cooling liquid does not exchange heat in the second plate heat exchanger 5 due to the fact that the second electronic expansion valve 17 is closed, the cooling liquid directly flows out of the hot side outlet 54 of the second plate heat exchanger, and then the cooling liquid sequentially runs along the second flow switch 38, the third filter 31, the second expansion tank 32, the second hydraulic pump 33 and the liquid cooling plate assembly 30 to form a liquid cooling plate self-circulation loop.
In practical application, the temperature control system is controlled according to the following steps:
S1, acquiring a first cooling requirement theta Cooling 1 and a heating requirement theta Heating of the immersion system and a second cooling requirement theta Cooling 2 of the liquid cooling plate system in real time;
S2, according to the sizes of theta Cooling 1 and theta Heating obtained in the step S1, the immersion system enters different modes:
When the theta Cooling 1 is more than or equal to 100%, the immersion system enters an immersion refrigeration mode, and an immersion refrigeration loop is formed in the immersion system;
When 0 is more than or equal to theta Cooling 1 and less than 100 percent, the immersion system enters an immersion heat dissipation mode, and an immersion heat dissipation loop is formed in the immersion system;
When theta Cooling 1 is less than or equal to 0, the immersion system enters an immersion self-circulation mode, and an immersion self-circulation loop is formed in the immersion system;
When theta Heating is more than or equal to 0, the immersion system enters an immersion heating mode, and an immersion heating loop is formed in the immersion system;
Meanwhile, according to the size of θ Cooling 2 obtained in step S1, the liquid cooling plate system also enters different modes:
When the theta Cooling 2 is more than or equal to 100%, the liquid cooling plate system enters a liquid cooling plate refrigerating mode, and a liquid cooling plate refrigerating loop is formed in the liquid cooling plate system;
When θ Cooling 2 is more than 0 and less than 100%, the liquid cooling plate system enters a liquid cooling plate heat dissipation mode, and a liquid cooling plate heat dissipation loop is formed in the liquid cooling plate system;
When theta Cooling 2 is less than or equal to 0, the liquid cooling plate system enters a liquid cooling plate self-circulation mode, and a liquid cooling plate self-circulation loop is formed in the liquid cooling plate system.
The first cooling demand θ Cooling 1 is calculated by the formula (1):
The heating demand θ Heating is calculated from formula (2):
The second cooling demand θ Cooling 2 is calculated by equation (3):
In the formula, T Battery module is the temperature of the battery module; t Liquid cooling plate is the temperature of the liquid cooling plate assembly; t Setting up 1 is a first set temperature; t Setting up 2 is a second set temperature; t Setting up 3 is a third set temperature; t cooling sensitivity is the cooling sensitivity, preferably T cooling sensitivity is 3 ℃; t heating sensitivity is the heating sensitivity, preferably T heating sensitivity is 3 ℃.
The above examples merely represent several embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A temperature control system for an energy storage device comprising a battery module (100), and other energy storage components besides the battery module; the method is characterized in that: the temperature control system comprises a controller, a refrigerating system (1), an immersing system (2) and a liquid cooling plate system (3); the controller is respectively connected with the refrigerating system (1), the immersing system (2) and the liquid cooling plate system (3) in a control way; the refrigerating system (1) is connected with the immersion system (2) through a first plate heat exchanger (4), and the refrigerating system (1) is connected with the liquid cooling plate system (3) through a second plate heat exchanger (5); the first plate heat exchanger (4) and the second plate heat exchanger (5) are arranged in parallel in the refrigerating system (1); the battery module is characterized in that an immersion box (20) is arranged in the immersion system, a liquid cooling plate assembly (30) is arranged in the liquid cooling plate system (3), the battery module (100) is immersed in the immersion box (20), and at least part of other energy storage assemblies are in contact with the liquid cooling plate assembly (30).
2. The temperature control system for an energy storage device of claim 1, wherein: the refrigeration system (1) comprises a gas-liquid separator (11), a compressor (12), a condenser (13), a liquid storage tank (14) and a first filter (15), wherein the gas-liquid separator is sequentially connected with the compressor, the condenser (13), the liquid storage tank (14) and the first filter (15), a cold side inlet (41) of the first plate heat exchanger and a cold side inlet (51) of the second plate heat exchanger are connected with the first filter (15), a cold side outlet (42) of the first plate heat exchanger and a cold side outlet (52) of the second plate heat exchanger are connected with the gas-liquid separator (11), a first electronic expansion valve (16) is arranged between the first filter (15) and the cold side inlet (41) of the first plate heat exchanger, and a second electronic expansion valve (17) is arranged between the first filter (15) and the cold side inlet (51) of the second plate heat exchanger.
3. The temperature control system for an energy storage device of claim 2, wherein: at least one place among the cold side outlet (42) of the first plate heat exchanger and the gas-liquid separator (11), the cold side outlet (52) of the second plate heat exchanger and the gas-liquid separator (11), the compressor (12) and the condenser (13), and the liquid storage tank (14) and the first filter (15) is provided with a temperature sensor (6).
4. The temperature control system for an energy storage device of claim 2, wherein: the inlet end of the compressor (12) is provided with a low pressure sensor (18), the outlet end of the compressor (12) is provided with a high pressure sensor (19), and a pressure switch (10) is arranged between the high pressure sensor (19) and the condenser (13).
5. The temperature control system for an energy storage device of claim 1, wherein: the immersion system (2) comprises an immersion main path, an immersion heat dissipation branch path and an immersion heating branch path; the immersion main path comprises a second filter (21), a first expansion tank (22), a first hydraulic pump (23), a first electromagnetic valve (24), an immersion tank (20) and a second electromagnetic valve (25) which are sequentially connected, a hot side inlet (43) of the first plate heat exchanger is connected with the second electromagnetic valve (25), and a hot side outlet (44) of the first plate heat exchanger is connected with the second filter (21); the inlet end of the immersed radiating branch is arranged between the second electromagnetic valve (25) and the immersed tank (20), and the outlet end of the immersed radiating branch is arranged between the hot side outlet (44) of the first plate heat exchanger and the second filter (21); the immersed heating branch is arranged in parallel with the first electromagnetic valve (24); the immersed radiating branch comprises a third electromagnetic valve (26) and a first radiator (27) which are sequentially arranged; the submerged heating branch comprises an electric heater (28).
6. The temperature control system for an energy storage device of claim 5, wherein: a first one-way valve (29) is arranged between the first hydraulic pump (23) and the first electromagnetic valve (24); a first flow switch (210) is arranged between the outlet end of the immersed radiating branch and the second filter (21); a pressure sensor (7) is arranged between at least one of the second filter (21) and the first expansion tank (22), the first one-way valve (29) and the first electromagnetic valve (24), and the second electromagnetic valve (25) and the immersion tank (20); the inlet end and/or the outlet end of the immersion tank is provided with a temperature sensor (6).
7. The temperature control system for an energy storage device of claim 6, wherein: a shut-off valve (8) is provided at least at one of between the second filter (21) and the first expansion tank (22), between the first solenoid valve (24) and the immersion tank (20), between the immersion tank (20) and the second solenoid valve (25), and between the first flow switch (210) and the second filter (21).
8. The temperature control system for an energy storage device of claim 1, wherein: the liquid cooling plate system comprises a liquid cooling plate main path and a liquid cooling plate radiating branch path; the liquid cooling plate main path comprises a third filter (31), a second expansion tank (32), a second hydraulic pump (33), the liquid cooling plate assembly (30) and a fourth electromagnetic valve (34) which are sequentially connected, a hot side inlet (53) of the second plate heat exchanger is connected with the fourth electromagnetic valve (34), and a hot side outlet (54) of the second plate heat exchanger is connected with the third filter (31); the inlet end of the liquid cooling plate heat dissipation branch is arranged between the fourth electromagnetic valve (34) and the liquid cooling plate assembly (30), and the outlet end of the liquid cooling plate heat dissipation branch is arranged between a hot side outlet (54) of the second plate heat exchanger and the third filter (31); the liquid cooling plate radiating branch circuit comprises a fifth electromagnetic valve (35) and a second radiator (36) which are sequentially arranged.
9. The temperature control system for an energy storage device of claim 8, wherein: a second one-way valve (37) is arranged between the second hydraulic pump (33) and the liquid cooling plate assembly (30); a second flow switch (38) is arranged between the outlet end of the liquid cooling plate heat dissipation branch and the third filter (31); a pressure sensor (7) is arranged between at least one of the third filter (31) and the second expansion tank (32), the second one-way valve (37) and the liquid cooling plate assembly (30), and the fourth electromagnetic valve (34) and the liquid cooling plate assembly (30); the inlet end and/or the outlet end of the liquid cooling plate assembly (30) are/is provided with a temperature sensor (6).
10. The temperature control system for an energy storage device of claim 9, wherein: a stop valve (8) is arranged between at least one of the third filter (31) and the second expansion tank (32), the second one-way valve (37) and the liquid cooling plate assembly (30), the liquid cooling plate assembly (30) and the fourth electromagnetic valve (34), and the second flow switch (38) and the third filter (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322751469.6U CN221041274U (en) | 2023-10-12 | 2023-10-12 | Temperature control system for energy storage equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322751469.6U CN221041274U (en) | 2023-10-12 | 2023-10-12 | Temperature control system for energy storage equipment |
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| Publication Number | Publication Date |
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| CN221041274U true CN221041274U (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322751469.6U Active CN221041274U (en) | 2023-10-12 | 2023-10-12 | Temperature control system for energy storage equipment |
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| CN (1) | CN221041274U (en) |
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2023
- 2023-10-12 CN CN202322751469.6U patent/CN221041274U/en active Active
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