Dehumidifying and refrigerating device with thermal compensation control for energy storage
By setting up a heat compensation heat exchanger in the energy storage and air conditioning system, heat compensation is performed on the air during the dehumidification process, the problem of the existing system's temperature drop during dehumidification is solved, and long-term dehumidification and stable operation are achieved.
Patent Information
- Application Number
- CN202421757780.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The existing energy storage air conditioning system is prone to generate condensate during the dehumidification process, and the heat generation is insufficient when the battery is charged and discharged and is unable to dehumidify for a long time, resulting in frequent start-stop and temperature oscillation, and the constant temperature operation cannot be achieved.
A dehumidification and refrigeration device for energy storage is designed with thermal compensation control. By setting a heat compensation heat exchanger on one side of the evaporator, the air that has been cooled and dehumidified by the evaporator is heated during the dehumidification process, thereby delaying the reduction of the temperature in the energy storage cabinet and supporting long-term dehumidification.
It effectively prevents the temperature in the energy storage cabinet from dropping too quickly during the dehumidification process, supports long-term dehumidification, increases the dehumidification effect, and prevents refrigerant from flowing into the heat compensation heat exchanger through a check-way valve, improving the operating stability of the system.
Smart Images
Figure CN222925647U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of energy storage air conditioners, and particularly relates to a dehumidifying and refrigerating device with heat compensation control for energy storage. Background Technique
[0002] At present, the conventional energy storage air conditioner systems on the market are as Figure 1 shown. Its main components are the compressor, condenser, throttling device, and evaporator, which are matched with internal and external fans. When the normal air conditioner dehumidifies, the wet air in the energy storage cabinet passes through the air conditioner evaporator. Since the surface temperature of the evaporator is lower than the dew point temperature of the water vapor, the water vapor in the air will liquefy and precipitate, thereby reducing the moisture content of the air and meeting the humidity requirements in the energy storage cabinet. At the same time, the ambient temperature in the cabinet also decreases synchronously. The disadvantages of this structure are:
[0003] 1. Because the dehumidification mode of the energy storage industrial air conditioner is accompanied by refrigeration operation. While dehumidifying, the temperature in the energy storage cabinet will also drop, and the surface of the equipment alternates between hot and cold, which is easy to generate condensate water.
[0004] 2. When the battery in the energy storage cabinet is lightly loaded during charging and discharging, the heat generation is small, and it is impossible to dehumidify for a long time. The temperature drop will cause the compressor to stop when the lowest dehumidification temperature is reached first, but the humidity has not been completely reduced, resulting in frequent start and stop.
[0005] 3. After the ordinary energy storage air conditioner dehumidification meets the shutdown condition, the temperature in the cabinet is low. After the battery continues to generate heat, the temperature in the cabinet rises, and the temperature oscillates back and forth, unable to operate at a constant temperature. Summary of the Invention
[0006] In order to solve the above problems, the utility model designs a dehumidifying and refrigerating device with heat compensation control for energy storage. During the dehumidification process, the heat compensation heat exchanger is used to exchange heat with the air that has been cooled and dehumidified by passing through the evaporator, so that the air is heated up. In this way, the temperature in the energy storage cabinet will not drop too fast during dehumidification, which is beneficial to long-term dehumidification and increases the dehumidification effect.
[0007] To solve the above technical problems, the present utility model provides a dehumidification and refrigeration device with thermal compensation control for energy storage, and the structure includes a condenser, a flow regulating device, an evaporator and a compressor. The condenser and the flow regulating device, the flow regulating device and the evaporator, the evaporator and the compressor, and the compressor and the condenser are all interconnected through pipelines arranged between them. A thermal compensation heat exchanger is arranged on one side of the evaporator. The refrigerant inlet of the thermal compensation heat exchanger is connected to the pipeline between the compressor and the condenser through a first refrigerant delivery pipeline, and the refrigerant outlet of the thermal compensation heat exchanger is connected to the pipeline between the condenser and the flow regulating device through a second refrigerant delivery pipeline. An electromagnetic valve is installed on the first refrigerant delivery pipeline, and a check valve is installed on the second refrigerant delivery pipeline.
[0008] Further: A condensation fan is arranged on one side of the condenser, and the air outlet of the condensation fan faces the condenser directly. An evaporation fan is arranged on the other side of the evaporator, and the air outlet of the evaporation fan faces the evaporator directly.
[0009] Still further: The air inlet of the evaporation fan is communicated with an air suction channel, and the air outlet of the evaporation fan is communicated with an air blowing channel. The evaporator and the thermal compensation heat exchanger are sequentially installed in the air blowing channel.
[0010] Even further: A return air temperature sensor and a return air humidity sensor are installed in the air suction channel, and a supply air temperature sensor is installed in the air blowing channel on the side of the thermal compensation heat exchanger away from the evaporator.
[0011] After adopting the above structure, the beneficial effects of the present utility model are as follows:
[0012] 1. The present utility model exchanges heat with the air that has been cooled and dehumidified by passing through the evaporator during the dehumidification process through the provided thermal compensation heat exchanger, so that the air is heated up, which makes the temperature in the energy storage cabinet not drop too fast during dehumidification, is beneficial to long-term dehumidification, and increases the dehumidification effect.
[0013] 2. The present utility model installs a check valve on the second refrigerant delivery pipeline. When the system does not perform thermal compensation dehumidification, the refrigerant cannot flow into the thermal compensation heat exchanger through the check valve, preventing the reduction of the refrigerant during the operation of the system, playing a role in improving the operation stability, and enabling the system to reach the best working state. Description of the Drawings
[0014] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific embodiments.
[0015] Figure 1 It is a schematic structural diagram of a conventional refrigeration and air-conditioning system in the background technology.
[0016] Figure 2 It is a structural schematic diagram of the utility model.
[0017] In the figure: 1 is a compressor, 2 is a condenser, 3 is a flow regulating device, 4 is an evaporator, 5 is a condensing fan, 6 is an evaporating fan, 7 is a solenoid valve, 8 is a thermal compensation heat exchanger, and 9 is a one-way valve. DETAILED DESCRIPTION
[0018] like Figure 2 A dehumidifying refrigeration device with thermal compensation control for energy storage is shown, and its structure includes a condenser 2, a flow regulating device 3, an evaporator 4 and a compressor 1. The condenser and the flow regulating device, the flow regulating device and the evaporator, the evaporator and the compressor, and the compressor and the condenser are interconnected through pipelines arranged between each other. A thermal compensation heat exchanger 8 is arranged on one side of the evaporator 4. The refrigerant inlet of the thermal compensation heat exchanger is connected to the pipeline between the compressor and the condenser through a first refrigerant delivery pipeline, and the refrigerant outlet of the thermal compensation heat exchanger is connected to the pipeline between the condenser and the flow regulating device through a second refrigerant delivery pipeline. A solenoid valve 7 is installed on the first refrigerant delivery pipeline, and a one-way valve 9 is installed on the second refrigerant delivery pipeline. The flow regulating device is a throttle valve or an electronic expansion valve. After turning on the dehumidification, the internal temperature is detected to be lower than the thermal compensation opening value, and the solenoid valve 7 is opened to make it in the conducting state. When the system is running, the refrigerant is divided into two paths after coming out of the exhaust port of the compressor 1. One path passes through the condenser 2 to dissipate heat, and the other path passes through the solenoid valve 7 and then enters the thermal compensation heat exchanger 8. After passing through the thermal compensation heat exchanger, it passes through the one-way valve 9. The condenser and the thermal compensation heat exchanger are connected in parallel and aggregated to the flow regulating device 3 for throttling. The throttled refrigerant passes through the evaporator 4 and finally returns to the compressor. The utility model uses the thermal compensation heat exchanger to heat the air that has been cooled and dehumidified by the evaporator during the dehumidification process, so that the air is heated up. In this way, the temperature in the energy storage cabinet will not drop too quickly during dehumidification, which is conducive to long-term dehumidification and increases the dehumidification effect. Moreover, the utility model installs a one-way valve on the second refrigerant delivery pipeline. When the system does not perform thermal compensation dehumidification, the one-way valve prevents the refrigerant before throttling from flowing into the thermal compensation heat exchanger. If there is no one-way valve, the thermal compensation heat exchanger is like a liquid storage tank, and the refrigerant liquid at the condenser outlet will automatically flow into the thermal compensation heat exchanger; resulting in less refrigerant when the system is running, which is not conducive to the system reaching the optimal working state.
[0019] like Figure 2 A condensing fan 5 is provided on one side of the condenser, and the air outlet of the condensing fan faces the condenser. An evaporating fan 6 is provided on the other side of the evaporator, and the air outlet of the evaporating fan faces the evaporator.
[0020] The air inlet of the above-mentioned evaporation fan is connected to the air suction channel, and the air outlet of the evaporation fan is connected to the air blowing channel. The evaporator and the heat compensation heat exchanger are sequentially installed in the air blowing channel. A return air temperature sensor and a return air humidity sensor are installed in the air suction channel, and a supply air temperature sensor is installed in the air blowing channel on the side of the heat compensation heat exchanger away from the evaporator. The utility model detects the temperature and humidity in the energy storage cabinet through the return air temperature sensor and the return air humidity sensor, so as to judge whether cooling and dehumidification are needed. When dehumidifying, the supply air temperature sensor is used to detect the outlet air temperature passing through the heat compensation heat exchanger. When the temperature detection meets the heat compensation set value, the solenoid valve is opened, so as to carry out heat compensation through the heat compensation heat exchanger.
[0021] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications made without departing from the principle of the present invention should be regarded as the protection scope of the present invention.
Claims
1. A dehumidifying refrigeration device with heat compensation control for energy storage, comprising a condenser (2), a flow regulating device (3), an evaporator (4) and a compressor (1), wherein the condenser and the flow regulating device, the flow regulating device and the evaporator, the evaporator and the compressor, and the compressor and the condenser are all connected to each other through pipelines arranged therebetween, characterized in that: A heat compensating heat exchanger (8) is provided on one side of the evaporator (4); the refrigerant inlet of the heat compensating heat exchanger is connected to the pipeline between the compressor and the condenser through a first refrigerant delivery pipeline; the refrigerant outlet of the heat compensating heat exchanger is connected to the pipeline between the condenser and the flow regulating device through a second refrigerant delivery pipeline; a solenoid valve (7) is installed on the first refrigerant delivery pipeline; and a one-way valve (9) is installed on the second refrigerant delivery pipeline.
2. A dehumidification refrigeration device with heat compensation control for energy storage according to claim 1, characterized in that: A condensing fan (5) is arranged on one side of the condenser, and an air outlet of the condensing fan faces the condenser. An evaporating fan (6) is arranged on the other side of the evaporator, and an air outlet of the evaporating fan faces the evaporator.
3. A dehumidification refrigeration device with heat compensation control for energy storage according to claim 2, characterized in that: The air inlet of the evaporating fan is connected to the air suction channel, the air outlet of the evaporating fan is connected to the air blowing channel, and the evaporator and the heat compensation heat exchanger are sequentially installed in the air blowing channel.
4. A dehumidification refrigeration device with heat compensation control for energy storage according to claim 3, characterized in that: A return air temperature sensor and a return air humidity sensor are installed in the air suction channel, and a supply air temperature sensor is installed in the air blowing channel on the side of the thermal compensation heat exchanger away from the evaporator.