Energy storage container heat management device with dehumidification function

Abstract

The utility model relates to the technical field of dehumidification systems, in particular to an energy storage container heat management device with a dehumidification function. The heat management device for the energy storage container comprises a cooling liquid circulation assembly and a dehumidification system assembly. The cooling liquid circulation assembly comprises a liquid return port, a water pump, a plate heat exchanger and a liquid supply port which are connected in sequence, and the liquid supply port is connected with the liquid return port; the dehumidification system assembly comprises a rotary dehumidifier, a surface air cooler and a regeneration heater, the rotary dehumidifier and the surface air cooler are sequentially arranged in the air supply direction to form an air supply flow path, and the regeneration heater and the rotary dehumidifier are sequentially arranged in the regeneration air direction to form a regeneration air flow path. The heat management device for the energy storage container can efficiently and reliably control the temperature and humidity environment in the container, maintain the performance of the battery and prolong the service life of the battery.

Description

Technical Field

[0001] The utility model relates to the technical field of dehumidification systems, and in particular to a thermal management device for an energy storage container with a dehumidification function. Background Art

[0002] With the development of electric energy storage technology, the capacity of energy storage battery packs has been continuously improved. The dense arrangement of battery packs and the accumulation of heat during charging and discharging will cause a significant temperature rise in the energy storage container. The optimal operating temperature of energy storage batteries is 25°C to 35°C. When the temperature rises to the upper limit of the safe working temperature of the battery, as the temperature continues to rise, the internal chemical balance of the energy storage battery is destroyed. In the long run, it will lead to battery performance degradation and shortened service life. There is also the possibility of thermal runaway problems caused by large amounts of heat released by the battery, leading to dangerous accidents such as combustion and explosion. In addition, a high humidity environment will also endanger the safe operation of the battery. Therefore, it is necessary to accurately control the temperature and humidity environment inside the energy storage container. The current commonly used solutions usually rely on high-cost precision air conditioning systems or passive insulation equipment. These methods are not only costly but also inefficient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a low-cost and high-efficiency thermal management device for an energy storage container with a dehumidification function.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a thermal management device for an energy storage container with a dehumidification function, comprising a coolant circulation component and a dehumidification system component; the coolant circulation component comprises a return liquid port, a water pump, a plate heat exchanger and a liquid supply port connected in sequence, and the liquid supply port and the return liquid port are connected; the dehumidification system component comprises a rotary dehumidifier, a surface cooler and a regeneration heater, the rotary dehumidifier and the surface cooler are arranged in sequence in the air supply direction to form an air supply flow path, and the regeneration heater and the rotary dehumidifier are arranged in sequence in the regeneration wind direction to form a regeneration wind flow path.

[0005] Wherein, the dehumidification system component also includes a regulating valve, and the plate heat exchanger, the regulating valve, the surface cooler and the water pump are connected in sequence.

[0006] Among them, the dehumidification system components also include a first filter, a second filter, a blower and a regeneration fan. The first filter, blower, rotary dehumidifier and surface cooler are arranged in sequence in the air supply direction to form an air supply flow path. The second filter, regeneration heater, rotary dehumidifier and regeneration fan are arranged in sequence in the regeneration wind direction to form a regeneration air flow path.

[0007] Wherein, the dehumidification system component also includes a temperature and humidity sensor, and the temperature and humidity sensor is arranged at the air outlet of the surface cooler.

[0008] It also includes a refrigeration system component, which includes a condenser, a throttle valve and a compressor. The compressor, condenser, throttle valve and plate heat exchanger are connected in sequence, and the plate heat exchanger is connected to the compressor.

[0009] Wherein, the refrigeration system component also includes a condensing fan, and the condensing fan is connected to the condenser.

[0010] The beneficial effect of the utility model is that the thermal management device of the energy storage container with dehumidification function of the utility model can efficiently and reliably control the temperature and humidity environment inside the container, maintain battery performance, and extend the battery service life. When the temperature inside the energy storage container is too high, the coolant in the coolant circulation component enters the plate heat exchanger through the return liquid port for cooling, and then is pumped into the pipeline of the energy storage container through the liquid supply port by the water pump to cool the energy storage container, and then returns to the return liquid port to achieve rapid cooling of the energy storage container. When the humidity inside the energy storage container is too high or there is a risk of condensation, the dehumidification system component starts to work, and the high-humidity air in the energy storage container is sent to the rotary dehumidifier for dehumidification. The air after dehumidification enters the surface cooler for cooling and then enters the energy storage container to prevent the temperature inside the energy storage container from rising; at the same time, the regenerated air passes through the regeneration heater and is regenerated by the rotary dehumidifier, which can improve the regeneration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The figure shows a schematic diagram of the structure of a thermal management device for an energy storage container with a dehumidification function in a specific embodiment of the utility model;

[0012] Description of labels:

[0013] 11. Liquid return port; 12. Water pump; 13. Plate heat exchanger; 14. Liquid supply port;

[0014] 21. Condenser; 22. Throttle valve; 23. Compressor; 24. Condensing fan;

[0015] 31. Rotary dehumidifier; 32. Surface cooler; 33. Regeneration heater; 34. Regulating valve; 35. First filter; 36. Second filter; 37. Blower; 38. Regeneration fan; 39. Temperature and humidity sensor;

[0016] 4. Energy storage container. DETAILED DESCRIPTION

[0017] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0018] Please refer to Figure 1A thermal management device for an energy storage container with a dehumidification function comprises a coolant circulation component and a dehumidification system component; the coolant circulation component comprises a liquid return port, a water pump, a plate heat exchanger and a liquid supply port which are connected in sequence, and the liquid supply port is connected to the liquid return port; the dehumidification system component comprises a rotary dehumidifier, a surface cooler and a regeneration heater, the rotary dehumidifier and the surface cooler are arranged in sequence in the air supply direction to form an air supply flow path, and the regeneration heater and the rotary dehumidifier are arranged in sequence in the regeneration wind direction to form a regeneration wind flow path.

[0019] From the above description, it can be seen that the beneficial effect of the utility model is that when the temperature in the energy storage container is too high, the coolant circulation component starts to work. The coolant enters the plate heat exchanger for heat exchange to obtain low-temperature coolant, and the low-temperature coolant is pumped into the pipeline of the energy storage container through the liquid supply port by the water pump to cool the energy storage container. The temperature of the coolant after the cooling treatment increases, and enters the plate heat exchanger through the liquid return port for heat exchange and cooling again, thereby realizing the circulation of the coolant, which can quickly reduce the temperature in the energy storage container.

[0020] When the humidity in the energy storage container is too high or there is a risk of condensation, the dehumidification system components start working, and the high-humidity air in the energy storage container is sent to the rotary dehumidifier for dehumidification. Since the air after dehumidification will heat up, the dehumidified air will enter the surface cooler to cool down before entering the energy storage container, which can prevent the temperature in the energy storage container from rising. At the same time, the regeneration air passes through the regeneration heater and then regenerates the rotary dehumidifier, which can improve the regeneration efficiency.

[0021] Furthermore, the dehumidification system component also includes a regulating valve, and the plate heat exchanger, the regulating valve, the surface cooler and the water pump are connected in sequence.

[0022] From the above description, it can be seen that the plate heat exchanger, regulating valve, surface cooler and water pump are connected in sequence, so that the low-temperature coolant flows through the surface cooler and completes heat exchange and cooling with the dehumidified air, which can reduce the energy consumption of the device; the regulating valve can control the flow of coolant entering the surface cooler, thereby achieving the purpose of temperature control.

[0023] Furthermore, the dehumidification system component also includes a first filter, a second filter, a supply fan and a regeneration fan. The first filter, the supply fan, the rotary dehumidifier and the surface cooler are arranged in sequence in the supply air direction to form an supply air flow path. The second filter, the regeneration heater, the rotary dehumidifier and the regeneration fan are arranged in sequence in the regeneration wind direction to form a regeneration air flow path.

[0024] From the above description, it can be seen that the first filter and the second filter can reduce impurities entering the dehumidification system components and extend the service life of the equipment. The fan and the regeneration fan can provide power for the formation of the supply air flow path and the regeneration air flow path.

[0025] Furthermore, the dehumidification system component also includes a temperature and humidity sensor, which is arranged at the air outlet of the surface cooler.

[0026] From the above description, it can be seen that the temperature and humidity of the air supply of the energy storage container can be monitored by the temperature and humidity sensor. The parameters of each device in the equipment can be adjusted according to the monitoring results to control the temperature and humidity of the air supply. For example, if the air supply temperature is too low, the opening of the regulating valve is reduced; if the temperature is too high, the opening of the regulating valve is increased; if the humidity does not meet the requirements, the parameters of the rotary dehumidifier are adjusted.

[0027] Furthermore, it also includes a refrigeration system component, which includes a condenser, a throttle valve and a compressor. The compressor, the condenser, the throttle valve and the plate heat exchanger are connected in sequence, and the plate heat exchanger is connected to the compressor.

[0028] From the above description, it can be seen that the refrigerant is compressed by the compressor, condensed by the condenser and throttled by the throttle valve to form a low-temperature refrigerant fluid. The low-temperature refrigerant fluid enters the plate heat exchanger and the coolant in the coolant circulation component to complete heat exchange, and obtains a low-temperature coolant. The temperature of the refrigerant fluid after the heat exchange increases, and it enters the compressor again to realize rapid circulation refrigeration of the coolant, thereby improving the cooling efficiency.

[0029] Furthermore, the refrigeration system component also includes a condensing fan, which is connected to the condenser.

[0030] From the above description, it can be seen that the operation of the condensing fan can enhance the convective heat exchange between the condenser and the surrounding air and strengthen the condensation effect.

[0031] Please refer to Figure 1 , Embodiment 1 of the present utility model is: a thermal management device for an energy storage container with a dehumidification function, comprising a coolant circulation component, a refrigeration system component and a dehumidification system component.

[0032] The coolant circulation component includes a liquid return port 11, a water pump 12, a plate heat exchanger 13 and a liquid supply port 14. The liquid return port 11 is connected to the liquid inlet of the water pump 12, the liquid outlet of the water pump 12 is connected to the coolant inlet of the plate heat exchanger 13, the coolant outlet of the plate heat exchanger 13 is connected to the liquid supply port 14, and the liquid supply port 14 is connected to the liquid return port 11, so as to provide coolant to the plate heat exchanger 13.

[0033] The refrigeration system components include a condenser 21, a throttle valve 22, a compressor 23 and a condensing fan 24. The air outlet of the compressor 23 is connected to the air inlet of the condenser 21, the liquid outlet of the condenser 21 is connected to the liquid inlet of the throttle valve 22, the liquid outlet of the throttle valve 22 is connected to the refrigerant liquid inlet of the plate heat exchanger 13, the refrigerant liquid outlet of the plate heat exchanger 13 is connected to the air inlet of the compressor 23, and the condensing fan 24 is connected to the condenser 21, so as to reduce the temperature inside the energy storage container 4.

[0034] The dehumidification system assembly includes a rotary dehumidifier 31, a cooler 32, a regeneration heater 33, a regulating valve 34, a first filter 35, a second filter 36, a blower 37, a regeneration fan 38 and a temperature and humidity sensor 39. The first filter 35, the blower 37, the rotary dehumidifier 31, the cooler 32 and the temperature and humidity sensor 39 are sequentially arranged in the air supply direction to form an air supply flow path for reducing the humidity in the energy storage container 4. The coolant outlet of the plate heat exchanger 13 is connected to the liquid inlet of the regulating valve 34, the liquid outlet of the regulating valve 34 is connected to the coolant inlet of the cooler 32, and the coolant outlet of the cooler 32 is connected to the liquid inlet of the water pump 12 for adjusting the temperature of the cooler 32. The second filter 36, the regeneration heater 33, the rotary dehumidifier 31 and the regeneration fan 38 are sequentially arranged in the regeneration wind direction to form a regeneration wind flow path for regeneration of the rotary dehumidifier 31.

[0035] The operating principle of the utility model is:

[0036] When the temperature in the energy storage container 4 is too high, the refrigeration system components and the coolant circulation components start to operate. The refrigerant is compressed by the compressor 23, condensed by the condenser 21, and throttled by the throttle valve 22 to form a low-temperature refrigerant fluid, which enters the plate heat exchanger 13 to complete heat exchange with the coolant to obtain a low-temperature coolant. The refrigerant fluid after heat exchange returns to the compressor 23 for circulating refrigeration. During this process, the condensing fan 24 in the refrigeration system runs, which can enhance the convection heat exchange between the condenser 21 and the surrounding air and strengthen the condensation effect. The low-temperature coolant is pumped into the energy storage container 4 by the water pump 12 through the liquid supply port 14 for cooling treatment. After cooling treatment, it re-enters the plate heat exchanger 13 through the return liquid port 11 for circulating cooling.

[0037] When the humidity in the energy storage container 4 is too high, the dehumidification system components start to operate. The air supply fan 37 draws high-humidity air from the energy storage container 4 into the first filter 35 for filtration, and then enters the rotary dehumidifier 31 to complete dehumidification. The dehumidified air is cooled by the surface cooler 32 and detected by the temperature and humidity sensor 39 before being sent to the energy storage container 4. If the temperature and humidity sensor 39 detects that the temperature of the air sent into the energy storage container 4 does not match the preset temperature, the flow of coolant entering the surface cooler 32 can be adjusted by the regulating valve 34 to achieve the purpose of temperature control. The regeneration air is directly drawn from the outside, filtered by the second filter 36 and heated by the regeneration heater 33, and then enters the regeneration module of the rotary dehumidifier 31. After the regeneration process is completed, it is extracted and discharged to the outside through the regeneration fan 38.

[0038] In summary, the energy storage container thermal management device with dehumidification function provided by the utility model has the following advantages:

[0039] (1) The coolant circulation component and the refrigeration system component cooperate to cool the energy storage container, and the cooling efficiency is high. The dehumidification system component of the utility model is used for dehumidification, which has low cost and good dehumidification effect.

[0040] (2) A temperature and humidity sensor is installed at the air outlet of the air supply path to accurately control the temperature and humidity environment.

[0041] (3) The surface cooler is connected to the coolant branch, which consumes less energy than a separate cooling device.

[0042] (4) The regulating valve can control the flow of coolant into the condenser, thereby achieving the purpose of temperature control.

[0043] (5) The condensing fan strengthens the convective heat exchange between the condenser and the surrounding air, thereby enhancing the condensation effect.

[0044] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A thermal management device for an energy storage container with a dehumidification function, characterized in that: It includes a coolant circulation component and a dehumidification system component; the coolant circulation component includes a return liquid port, a water pump, a plate heat exchanger and a liquid supply port which are connected in sequence, and the liquid supply port is connected to the return liquid port; the dehumidification system component includes a rotary dehumidifier, a surface cooler and a regeneration heater, the rotary dehumidifier and the surface cooler are arranged in sequence in the air supply direction to form an air supply flow path, and the regeneration heater and the rotary dehumidifier are arranged in sequence in the regeneration wind direction to form a regeneration wind flow path.

2. The thermal management device of the energy storage container with dehumidification function according to claim 1 is characterized in that: The dehumidification system component also includes a regulating valve, and the plate heat exchanger, the regulating valve, the surface cooler and the water pump are connected in sequence.

3. The thermal management device of the energy storage container with dehumidification function according to claim 1 is characterized in that: The dehumidification system component also includes a first filter, a second filter, a supply fan and a regeneration fan. The first filter, the supply fan, the rotary dehumidifier and the surface cooler are arranged in sequence in the air supply direction to form an air supply flow path. The second filter, the regeneration heater, the rotary dehumidifier and the regeneration fan are arranged in sequence in the regeneration wind direction to form a regeneration air flow path.

4. The thermal management device of the energy storage container with dehumidification function according to claim 1 is characterized in that: The dehumidification system component also includes a temperature and humidity sensor, which is arranged at the air outlet of the surface cooler.

5. The thermal management device of the energy storage container with dehumidification function according to claim 1 is characterized in that: It also includes a refrigeration system component, which includes a condenser, a throttle valve and a compressor. The compressor, condenser, throttle valve and plate heat exchanger are connected in sequence, and the plate heat exchanger is connected to the compressor.

6. The thermal management device for an energy storage container with a dehumidification function according to claim 5 is characterized in that: The refrigeration system component also includes a condensing fan, which is connected to the condenser.

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