Energy storage battery liquid cooling dual-mode heat management and battery storage space heat recovery temperature and humidity coordinated regulation and control system and method

Through the dual-mode thermal management system of the heat pipe cooling module and the vapor compression refrigeration cycle module, combined with the waste heat recovery module, the problems of insufficient heat dissipation efficiency and temperature and humidity control of the energy storage battery liquid cooling system are solved, achieving efficient energy saving and improved system stability.

CN120810074APending Publication Date: 2025-10-17NANJING TECH UNIV

Patent Information

Application Number
CN202510974997.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-15
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

The existing energy storage battery liquid cooling system has deficiencies in heat dissipation efficiency and temperature and humidity control, and is unable to achieve precise temperature control and efficient energy saving. In addition, waste heat is not effectively utilized, affecting battery performance and system stability.

Method used

A dual-mode thermal management system consisting of a heat pipe cooling module and a vapor compression refrigeration cycle module is adopted, combined with a waste heat recovery module for rotor regeneration, to achieve coordinated control of temperature and humidity in the battery compartment, automatically switch the cooling mode through the temperature sensor, and use waste heat to drive the dehumidification system.

Benefits of technology

It achieves efficient heat dissipation and precise temperature and humidity control of energy storage batteries, reduces energy consumption, improves the safety and stability of the battery system, and at the same time recycles and utilizes waste heat to reduce environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an energy storage battery liquid cooling dual-mode heat management and battery storage space heat recovery temperature and humidity coordinated regulation and control system and method. The system is composed of a heat pipe cooling module, a steam compression refrigeration cycle module and a module for waste heat recovery and runner regeneration. The heat pipe cooling module and the circulating pump form a natural cooling loop through the liquid cooling plate and the heat pipe heat exchanger; the vapor compression refrigeration cycle module efficiently and rapidly reduces the temperature of cooling liquid through a phase change refrigeration working medium. And the waste heat recovery module uses condensation waste heat for rotary wheel dehumidification regeneration. The system automatically switches double modes according to the temperature of cooling liquid: heat pipe energy-saving cooling is started when the temperature is lower than or equal to 35 DEG C, steam compression refrigeration is switched when the temperature is higher than 35 DEG C, and condensation waste heat of the two modes preheats regenerated air through a heat pipe heat exchanger, then the temperature is supplemented to the regeneration temperature through an electric heater, a rotating wheel is driven to dehumidify, and dry air is fed into a battery cabin. The method gives consideration to energy efficiency and thermal safety, and is suitable for thermal management and space humidity regulation and control of an energy storage battery system.
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Description

TECHNICAL FIELD

[0001] The present application relates to a kind of energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity synergic control system and method, belong to energy storage battery liquid cooling technical field. BACKGROUND

[0002] With the acceleration of global energy transformation, energy storage batteries, as a kind of key energy storage equipment, their market demand presents explosive growth. Energy storage batteries play an important role in the stable operation of power system, effective consumption of renewable energy and application of distributed energy. However, a large amount of heat will be generated during the charging and discharging process of energy storage batteries, and the temperature rise will have a significant impact on the performance, life and safety of the battery. Although the traditional air cooling method is simple in structure and low in cost, its heat exchange efficiency is low, which is difficult to meet the heat dissipation demand of high energy density and large capacity energy storage batteries, and it cannot realize precise temperature control, resulting in large temperature difference between each battery monomer in the battery pack, affecting the consistency and overall performance of the battery. In contrast, liquid cooling technology uses liquid as cooling medium, and through the circulation of liquid in pipeline or cold plate to take away the heat generated by battery, it has higher heat exchange efficiency and better temperature uniformity control ability, which can effectively maintain the battery working in suitable temperature range, prolong the battery life and improve the safety and stability of energy storage system. In addition, battery cabin dehumidification is also critical, high humidity environment is easy to cause battery short circuit, corrosion and management system failure, affect the system life and stability. Therefore, developing an energy storage battery liquid cooling system that can efficiently dissipate heat, save energy and reduce consumption, and synergically control temperature and humidity, has become an important direction of the development of energy storage battery liquid cooling technology.

[0003] Some patents have proposed some liquid cooling systems for energy storage batteries. Patent CN217035772U designs a liquid-cooled energy storage battery thermal management device with environmental dehumidification function. This patent integrates the environmental dehumidification component with the thermal management component of the liquid-cooled energy storage battery, which not only meets the cooling needs of the energy storage battery but also achieves precise control of the humidity of the external environment of the battery. This integrated design not only avoids the layout problem of traditional dehumidification equipment in a compact space, reducing the complexity and cost of the overall control system, but also improves the reliability of the energy storage thermal management device. However, in actual application, a large amount of waste heat may be generated during the cooling process of the refrigeration component and the battery. This waste heat may be directly discharged into the environment, causing energy waste. This not only increases the energy consumption of the system but also may cause thermal pollution to the surrounding environment. Patent CN217848090U designs a liquid-cooled energy storage battery pack, including several battery modules, liquid cooling plates, and support plates. The special design of the support plate provides stable support for the battery modules and space for the layout of the liquid cooling channels of the liquid cooling plate, allowing the liquid cooling channels to be more evenly arranged, thereby improving the heat dissipation efficiency and prolonging the overall life of the battery. The design of the support protrusions and reinforcing protrusions on the support plate not only enhances the strength of the support plate but also makes the support structure more stable, while also providing space for the layout of the liquid cooling channels on the liquid cooling plate. This patent mainly focuses on the support of the battery modules and the layout of the liquid cooling channels. Although the special design of the support plate provides space for the liquid cooling plate, allowing the liquid cooling channels to be more evenly arranged, thereby improving the heat dissipation efficiency to some extent. However, the liquid cooling system itself is a complex thermal management system, and relying solely on the uniform arrangement of the liquid cooling channels may not be able to accurately control the temperature within the battery pack.

[0004] The present application provides a kind of energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity coordinated control system and method, system is by heat pipe cooling module, vapor compression refrigeration cycle module and waste heat recovery for runner regeneration module composition.Heat pipe cooling module is by liquid cooling plate, heat pipe heat exchanger and circulating pump and constitutes natural cooling circuit;Vapor compression refrigeration cycle module is by phase change refrigeration working substance to realize high efficiency, fast reduce cooling liquid temperature;Waste heat recovery module will condensing waste heat be used for runner dehumidification regeneration, realize battery cabin temperature and humidity coordinated control.System is switched according to cooling liquid temperature dual mode: ≤35 ℃ when starting heat pipe energy-saving cooling, > 35 ℃ when switching to vapor compression refrigeration.And the condensing waste heat of both is preheated by heat pipe heat exchanger after regenerating air by electric heater, and the temperature is supplemented to regeneration temperature, drives runner dehumidification, dry air is sent into battery cabin by processing fan.The present application gives consideration to energy efficiency and thermal safety, and is suitable for the thermal management of energy storage battery system and the humidity control of space. SUMMARY

[0005] The application aims to overcome the above-mentioned deficiencies of the prior art and design a thermal management system and method for energy storage battery liquid cooling dual mode and thermal recovery temperature and humidity coordinated regulation of battery storage space.

[0006] The application provides a thermal management system and method for energy storage battery liquid cooling dual mode and thermal recovery temperature and humidity coordinated regulation of battery storage space, which is composed of a heat pipe cooling system module, a vapor compression refrigeration cycle system module, and a waste heat recovery system module for rotary regeneration.

[0007] The heat pipe cooling system module comprises a battery pack 1, a liquid cooling plate 2, a first circulating liquid pump 3, a temperature sensor 4, a three-way valve 5, a heat pipe heat exchanger 6, and a second circulating liquid pump 7.

[0008] The vapor compression refrigeration cycle system module comprises a vapor compression refrigeration cycle evaporator 8, a compressor 9, a vapor compression refrigeration cycle condenser 10, a throttling valve 11, and a third circulating liquid pump 12.

[0009] The waste heat recovery for the rotary regenerative system module includes a first primary filter 13, an electric heater 14, a rotary wheel 15, a regenerative fan 16, a second primary filter 17, a treatment fan 18, a battery cabin 19; the vapor compression refrigeration cycle condenser 10 is connected with the condensing section of the heat pipe heat exchanger 6; the first primary filter 13 is arranged in front of the condensing section of the heat pipe heat exchanger 6; the electric heater 14 is arranged behind the condensing section of the heat pipe heat exchanger 6; the rotary wheel 15 is arranged behind the electric heater 14; the regenerative fan 16 is arranged behind the rotary wheel 15; the second primary filter 17 is arranged in front of the treatment section of the rotary wheel 15; the treatment fan 18 is arranged behind the treatment section of the rotary wheel 15, and the air duct of the treatment fan 18 is connected with the battery cabin 19.

[0010] Further, the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity synergistic regulation system is characterized in that the liquid cooling plate 2 adopts a cross-flow rectangular micro-channel liquid cooling plate, directly adheres to the battery pack heat source, and the cooling liquid in the cooling plate adopts a water-based glycol solution.

[0011] Further, the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity synergistic regulation system is characterized in that in the heat pipe cooling system, the heat pipe heat exchanger 6 adopts a gravity heat pipe, and the heat pipe circulating working medium is water.

[0012] Further, the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity synergistic regulation system is characterized in that the vapor compression refrigeration cycle evaporator 8 adopts a double-pipe heat exchanger, and the vapor compression refrigeration cycle condenser 10 adopts a plate heat exchanger, wherein the refrigeration cycle refrigerant working medium selects R134a.

[0013] Further, the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity synergistic regulation system is characterized in that the filter screen materials of the first primary filter 13 and the second primary filter 17 are polypropylene fibers.

[0014] Further, the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity synergistic regulation system is characterized in that the adsorption material of the rotary wheel 15 is a silica gel-zeolite composite material.

[0015] Further, the method of the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity synergistic regulation system is characterized in that:

[0016] The battery pack 1 is in direct contact with the liquid cooling plate 2, the heat in the battery pack 1 is absorbed by the cooling liquid in the liquid cooling plate 2, the cooling liquid with increased temperature flows through the temperature sensor 4 through the first circulating liquid pump 3, when the cooling liquid temperature is ≤35℃, the three-way valve 5 is connected with the channel of the evaporation section of the heat pipe heat exchanger 6, the heat pipe cooling system is started, the cooling liquid with reduced temperature returns to the liquid cooling plate 2 through the second circulating liquid pump 7; when the cooling liquid temperature is >35℃, the three-way valve 5 is connected with the channel of the vapor compression refrigeration cycle evaporator 8, the vapor compression refrigeration cycle system is started, the cooling liquid with reduced temperature flows out of the vapor compression refrigeration cycle evaporator 8, and returns to the liquid cooling plate 2 through the third circulating liquid pump 12, the refrigerant working medium in the vapor compression refrigeration cycle evaporator 10 is increased in temperature, enters the compressor 9, becomes high-temperature and high-pressure refrigerant vapor through compression, and then enters the vapor compression refrigeration cycle condenser 10, the cooled refrigerant working medium becomes low-temperature and low-pressure refrigerant through the throttling valve 11, and the cycle is completed;

[0017] The waste heat recovery is used in the rotary regenerative system module, the waste heat generated in the heat pipe cooling system and the vapor compression refrigeration cycle system is recovered, the cooling liquid in the heat pipe cooling system is directly exchanged with the evaporation section of the heat pipe heat exchanger 6, and the heat released by the condensation section of the heat pipe heat exchanger 6 is used to preheat the regenerative air; in the vapor compression refrigeration cycle system, the waste heat discharged from the vapor compression refrigeration cycle condenser 10 drives the evaporation section of the heat pipe heat exchanger 6, and the heat released by the condensation section of the heat pipe heat exchanger 6 is used to preheat the regenerative air;

[0018] The regenerative air passes through the first primary filter 13, is preheated through the condensation section of the heat pipe heat exchanger 6, is heated to the regenerative temperature through the electric heater 14, passes through the rotary wheel 15 regenerative area, and is discharged by the regenerative air blower 16.

[0019] The treatment air passes through the second primary filter 17, passes through the rotary wheel 15 treatment area, and is sent into the battery cabin 19 by the treatment air blower 18.

[0020] Further, the method of the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity synergistic regulation system is characterized in that the temperature sensor 4 is used for detecting the cooling liquid temperature, when the cooling liquid temperature is ≤35℃, the heat pipe cooling system is switched to; when the cooling liquid temperature is >35℃, the vapor compression refrigeration cycle system is switched to.

[0021] Further, the method of the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity synergistic regulation system is characterized in that the electric heater 14 is an auxiliary heating device, which is started when the regenerative hot air temperature recovered by the condensation section of the heat pipe heat exchanger 6 or the vapor compression refrigeration cycle condenser 10 is lower than the lower limit of the required regenerative temperature of the rotary wheel 15. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a flow chart of a thermal management system for energy storage battery liquid cooling dual mode and battery storage space heat recovery temperature and humidity coordinated control.

[0023] Figure 1 Middle: 1. Energy storage battery, 2. Liquid cooling plate, 3. First circulating liquid pump, 4. Temperature sensor, 5. Three-way valve, 6. Heat pipe heat exchanger, 7. Second circulating liquid pump, 8. Vapor compression refrigeration cycle evaporator, 9. Compressor, 10. Vapor compression refrigeration cycle condenser, 11. Throttle valve, 12. Second circulating liquid pump, 13. First primary filter, 14. Electric heater, 15. Rotary, 16. Regeneration fan, 17. Second primary filter, 18. Processing fan, 19. Battery cabin. DETAILED DESCRIPTION

[0024] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0025] As Figure 1 shown, a thermal management system for energy storage battery liquid cooling dual mode and battery storage space heat recovery temperature and humidity coordinated control system is composed of a heat pipe cooling system, a vapor compression refrigeration cycle system and a waste heat recovery system for rotary regeneration.

[0026] The heat pipe cooling system module includes battery pack 1, liquid cooling plate 2, first circulating liquid pump 3, temperature sensor 4, three-way valve 5, heat pipe heat exchanger 6, second circulating liquid pump 7;

[0027] The vapor compression refrigeration cycle refrigeration system module includes vapor compression refrigeration cycle evaporator 8, compressor 9, vapor compression refrigeration cycle condenser 10, throttle valve 11, third circulating liquid pump 12;

[0028] The waste heat recovery system for rotary regeneration system module includes first primary filter 13, electric heater 14, rotary 15, regeneration fan 16, second primary filter 17, processing fan 18, battery cabin 19.

[0029] The method of the thermal management system for energy storage battery liquid cooling dual mode and battery storage space heat recovery temperature and humidity coordinated control system includes the following embodiments:

[0030] The battery pack 1 is in direct contact with the liquid cooling plate 2, and the heat in the battery pack 1 is absorbed by the cooling liquid in the liquid cooling plate 2, and the cooling liquid with the temperature increased flows through the temperature sensor 4 through the first circulating liquid pump 3. When the cooling liquid outlet temperature is ≤ 35℃, the three-way valve 5 is connected to the channel of the evaporation section of the heat pipe heat exchanger 6, and the cooling liquid is heat exchanged with the evaporation section of the heat pipe heat exchanger 6, and the cooling liquid with the temperature decreased returns to the liquid cooling plate 2 through the second circulating liquid pump 7. The regenerative air passes through the first primary filter 13, and the heat generated by multiple batteries can be released to preheat the regenerative air through the condensation section of the heat pipe heat exchanger 6, and the regenerative air enters the electric heater 14 again to be heated to the regeneration temperature, at this time, due to the low preheating temperature, the electric heater 14 needs to be adjusted to the high power gear, the regenerative air flows through the regeneration area of the runner 15, the moisture absorption capacity of the runner 15 is restored, and finally the regenerative air is discharged to the outdoor by the regenerative air blower 16. The treated air flows through the runner treatment area after passing through the second primary filter 17, and the dried treated air is sent into the battery cabin 19 by the treatment air blower 18, thereby effectively reducing the air humidity in the battery cabin 19.

[0031] The battery pack 1 is in direct contact with the liquid cooling plate 2, and the heat in the battery pack 1 is absorbed by the cooling liquid in the liquid cooling plate 2, and the cooling liquid with the temperature increased flows through the temperature sensor 4 through the first circulating liquid pump 3. When the cooling liquid outlet temperature is ≤ 35℃, the three-way valve 5 is connected to the channel of the evaporation section of the heat pipe heat exchanger 6, and the cooling liquid is heat exchanged with the evaporation section of the heat pipe heat exchanger 6, and the cooling liquid with the temperature decreased returns to the liquid cooling plate 2 through the second circulating liquid pump 7. The regenerative air passes through the first primary filter 13, and the heat generated by multiple batteries can be released to preheat the regenerative air through the condensation section of the heat pipe heat exchanger 6, and the regenerative air enters the electric heater 14 again to be heated to the regeneration temperature, at this time, due to the low preheating temperature, the electric heater 14 needs to be adjusted to the high power gear, the regenerative air flows through the regeneration area of the runner 15, the moisture absorption capacity of the runner 15 is restored, and finally the regenerative air is discharged to the outdoor by the regenerative air blower 16. The treated air flows through the runner treatment area after passing through the second primary filter 17, and the dried treated air is sent into the battery cabin 19 by the treatment air blower 18, thereby effectively reducing the air humidity in the battery cabin 19.

Claims

1. A dual-mode thermal management system for liquid cooling of energy storage batteries and a coordinated temperature and humidity control system for heat recovery in battery storage spaces, characterized by: It includes heat pipe cooling system module, vapor compression refrigeration cycle system module, and waste heat recovery for rotor regeneration system module; The heat pipe cooling system module comprises a battery pack (1), a liquid cooling plate (2), a first circulating liquid pump (3), a temperature sensor (4), a three-way valve (5), a heat pipe heat exchanger (6), and a second circulating liquid pump (7); wherein the battery pack (1) is in direct contact with the liquid cooling plate (2); the cooling liquid outlet of the liquid cooling plate (2) is connected to the cooling liquid inlet of the first circulating liquid pump (3); a temperature sensor (4) is arranged at the cooling liquid outlet of the first circulating liquid pump (3); the cooling liquid flows through the temperature sensor (4) and enters the three-way valve (5); one side outlet of the three-way valve (5) is connected to the cooling liquid inlet of the evaporation section of the heat pipe heat exchanger (6); the cooling liquid outlet of the heat pipe heat exchanger (6) is connected to the cooling liquid inlet of the second circulating liquid pump (7); and the cooling liquid outlet of the second circulating liquid pump (7) is connected to the cooling liquid inlet of the liquid cooling plate (2); The vapor compression refrigeration cycle refrigeration system module comprises a vapor compression refrigeration cycle evaporator (8), a compressor (9), a vapor compression refrigeration cycle condenser (10), a throttle valve (11), and a third circulating liquid pump (12); the battery pack (1) is in direct contact with the liquid cooling plate (2); the cooling liquid outlet of the liquid cooling plate (2) is connected to the cooling liquid inlet of the first circulating liquid pump (3); a temperature sensor (4) is arranged at the cooling liquid outlet of the first circulating liquid pump (3); the cooling liquid flows through the temperature sensor (4) and enters the three-way valve (5); the outlet on the other side of the three-way valve (5) is connected to the cooling liquid inlet of the vapor compression refrigeration cycle evaporator (8); the R134a refrigerant outlet of the vapor compression refrigeration cycle evaporator (8) is connected to the compressor (9); the cooling liquid inlet of the three-way valve (5) is connected to the compressor (9); the cooling liquid outlet of the three-way valve (5) is connected to the cooling liquid inlet of the vapor compression refrigeration cycle evaporator (8); the cooling liquid outlet ... three-way valve (5); the cooling liquid outlet of the three-way valve (5) is connected to the compressor (9); the cooling liquid outlet of the three-way valve (5) is connected to the cooling liquid inlet of the three-way valve (5 The R134a refrigerant inlet of the compressor (9) is connected; the R134a refrigerant outlet of the compressor (9) is connected to the R134a refrigerant inlet of the vapor compression refrigeration cycle condenser (10); the R134a refrigerant outlet of the vapor compression refrigeration cycle condenser (10) is connected to the R134a refrigerant inlet of the throttle valve (11); the R134a refrigerant outlet of the throttle valve (11) is connected to the R134a refrigerant inlet of the vapor compression refrigeration cycle evaporator (8); the cooling liquid outlet of the vapor compression refrigeration cycle evaporator (8) is connected to the cooling liquid inlet of the third circulating liquid pump (12); the cooling liquid outlet of the third circulating liquid pump (12) is connected to the cooling liquid inlet of the liquid cooling plate (2); The waste heat recovery for the rotor regeneration system module comprises a first primary filter (13), an electric heater (14), a rotor (15), a regeneration fan (16), a second primary filter (17), a treatment fan (18), and a battery compartment (19); a vapor compression refrigeration cycle condenser (10) is connected to the condensation section of the heat pipe heat exchanger (6); the first primary filter (13) is arranged in front of the condensation section of the heat pipe heat exchanger (6); an electric heater (14) is arranged behind the condensation section of the heat pipe heat exchanger (6); the regeneration zone of the rotor (15) is arranged behind the electric heater (14), and the regeneration fan (16) is arranged behind the regeneration zone of the rotor (15); the second primary filter (17) is arranged in front of the treatment zone of the rotor (15); the treatment fan (18) is arranged behind the treatment zone of the rotor (15), and the air duct of the treatment fan (18) is connected to the battery compartment (19).

2. The temperature and humidity coordinated control system based on liquid cooling dual-mode thermal management and heat recovery of energy storage batteries according to claim 1 is characterized by: The liquid cooling plate (2) adopts a cross-flow rectangular micro-channel liquid cooling plate, which is directly attached to the heat source of the battery pack, and the cooling liquid in the cold plate adopts a water-based ethylene glycol solution.

3. The temperature and humidity coordinated control system based on liquid cooling of energy storage batteries according to claim 1 is characterized by: In the heat pipe cooling system, the heat pipe heat exchanger (6) adopts a gravity heat pipe, and the heat pipe circulating medium is water.

4. The temperature and humidity coordinated control system based on liquid cooling dual-mode thermal management and heat recovery of energy storage batteries according to claim 1 is characterized by: The vapor compression refrigeration cycle evaporator (8) adopts a shell-and-tube heat exchanger, and the vapor compression refrigeration cycle condenser (10) adopts a plate heat exchanger, wherein the refrigeration cycle refrigerant is R134a.

5. The temperature and humidity coordinated control system based on liquid cooling dual-mode thermal management and heat recovery of energy storage batteries according to claim 1 is characterized by: The filter screens of the first primary filter (13) and the second primary filter (17) are made of polypropylene fibers.

6. The temperature and humidity coordinated control system based on liquid cooling of energy storage batteries according to claim 1 is characterized by: The adsorption material of the rotor (15) is a silica gel-zeolite composite material.

7. The method of claim 1, wherein: The battery pack (1) is in direct contact with the liquid cooling plate (2). The heat in the battery pack (1) is absorbed by the cooling liquid in the liquid cooling plate (2). The cooling liquid with increased temperature flows through the temperature sensor (4) through the first circulating liquid pump (3). When the cooling liquid temperature is ≤35°C, the channel connected to the evaporation section of the heat pipe heat exchanger (6) is opened, the heat pipe cooling system is started, and the cooling liquid with reduced temperature is returned to the liquid cooling plate (2) through the second circulating liquid pump (7); when the cooling liquid temperature is greater than 35°C, the three-way valve (5) and the vapor compression refrigeration cycle evaporation section are opened. The passage connected to the vapor compression refrigeration cycle (8) is opened, and the vapor compression refrigeration cycle system is started. The cooling liquid with reduced temperature flows out of the vapor compression refrigeration cycle evaporator (8) and returns to the liquid cooling plate (2) through the third circulating liquid pump (12). The refrigerant working medium in the vapor compression refrigeration cycle evaporator (10) is heated up and enters the compressor (9). It is compressed to become high-temperature and high-pressure refrigerant vapor and then enters the vapor compression refrigeration cycle condenser (10). The cooled refrigerant working medium passes through the throttle valve (11) and becomes low-temperature and low-pressure refrigerant, completing the cycle. Waste heat recovery is used in the rotary regeneration system module to recover waste heat generated in the heat pipe cooling system and the vapor compression refrigeration cycle system. In the heat pipe cooling system, the coolant directly exchanges heat with the evaporation section of the heat pipe heat exchanger (6), and the condensation section of the heat pipe heat exchanger (6) releases heat to preheat the regeneration air. In the vapor compression refrigeration cycle system, the waste heat discharged from the vapor compression refrigeration cycle condenser (10) drives the evaporation section of the heat pipe heat exchanger (6), and the condensation section of the heat pipe heat exchanger (6) releases heat to preheat the regeneration air. The regeneration air passes through the first primary filter (13), is preheated in the condensation section of the heat pipe heat exchanger (6), is heated to the regeneration temperature by the electric heater (14), passes through the regeneration zone of the rotor (15), and is discharged by the regeneration fan (16); The treated air passes through the second primary filter (17), then passes through the treatment area of ​​the rotor (15), and is sent into the battery compartment (19) by the treatment fan (18).

8. The method of the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity coordinated control system according to claim 7, characterized in that: The temperature sensor (4) is used to detect the temperature of the coolant. When the coolant temperature is less than or equal to 35°C, the system switches to the heat pipe cooling system; when the coolant temperature is greater than or equal to 35°C, the system switches to the vapor compression refrigeration cycle system.

9. The method of the energy storage battery liquid cooling dual-mode thermal management and battery storage space heat recovery temperature and humidity coordinated control system according to claim 7, characterized in that: The electric heater (14) is an auxiliary heating device, which is activated when the temperature of the regenerated hot air recovered from the condensing section of the heat pipe heat exchanger (6) or the vapor compression refrigeration cycle condenser (10) is lower than the lower limit of the regeneration temperature required by the wheel (15).

Citation Information

Patent Citations

  • Liquid cooling energy storage battery thermal management device with environment dehumidification function

    CN217035772U

  • Liquid cooling energy storage battery pack

    CN217848090U

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