Integrated temperature and humidity adjusting system and energy storage liquid cooling unit electric cabinet

Abstract

The utility model discloses an electric cabinet integrating a temperature and humidity adjusting system and an energy storage liquid cooling unit. The electric cabinet comprises an air duct shell, a dehumidification coil pipe, an evaporator, an evaporator, a compressor, a first condenser, a temperature detection device and a control device. A low-temperature and low-pressure gaseous refrigerant is compressed into a high-temperature and high-pressure gaseous refrigerant by the compressor, enters the first condenser, is condensed to become a high-temperature liquid refrigerant, is throttled and depressurized by the electronic expansion valve to become a gas-liquid mixed refrigerant and enters the dehumidification coil pipe, and air enters the dehumidification coil pipe from an air return opening of the air duct shell to be dehumidified by the dehumidification coil pipe. And a refrigerant in the dehumidification coil pipe is used for refrigerating air. The arrangement of the electronic expansion valve can adjust the flow of the refrigerant according to the actual demand, prevents the refrigerant from being excessive or insufficient, further improves the energy efficiency of the system, reduces the energy consumption, solves the problem of condensation of the electrochemical energy storage cabinet in a low-cost manner, and reduces the occupied space of the electrochemical energy storage cabinet at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of dehumidification, especially to an integrated temperature and humidity adjusting system and energy storage liquid cooling unit electric cabinet. BACKGROUND

[0002] The electrochemical energy storage cabinet generates heat during operation, and temperature changes in the electric cabinet can cause local condensation on the surface of the battery and wiring harness, thereby affecting the insulation performance of the device and cable. At present, in order to solve the problem of condensation of the electrochemical energy storage cabinet, a dehumidification device is usually additionally configured for the electrochemical energy storage cabinet, which increases the production cost and causes a large space occupation problem. SUMMARY

[0003] The utility model discloses a kind of integrated temperature and humidity adjusting systems and energy storage liquid cooling unit electric cabinet, to at least solve one of the technical problems existing in prior art, can solve the problem of condensation of electrochemical energy storage cabinet in low-cost mode, simultaneously reduce the space occupation of electrochemical energy storage cabinet.

[0004] In the first aspect, an integrated temperature and humidity adjusting system is provided, comprising:

[0005] A dehumidification module includes an air duct shell and a dehumidification coil, the air duct shell is provided with an air return port and an air supply port, air enters from the air return port, passes through the dehumidification coil, and exits from the air supply port;

[0006] An evaporator is connected to the output end of the dehumidification coil;

[0007] A compressor is connected to the output end of the evaporator;

[0008] A first condenser is connected to the output end of the compressor, and the output end of the first condenser is connected to the input end of the dehumidification coil, and an electronic expansion valve is provided between the dehumidification coil and the first condenser;

[0009] A temperature detection device is used to detect temperature;

[0010] A control device is electrically connected to the evaporator, the compressor, the first condenser, the electronic expansion valve, and the temperature detection device, respectively;

[0011] The compressor is used to compress refrigerant, so that the refrigerant is in a high-temperature and high-pressure state. The high-temperature and high-pressure refrigerant passes through the first condenser, the electronic expansion valve, and the dehumidification coil, and then reaches the evaporator.

[0012] According to some embodiments of the utility model, the dehumidification module further includes a second condenser and a dehumidification fan, air enters from the return air outlet, sequentially passes through the dehumidification coil, the dehumidification fan and the second condenser, and then goes out from the air supply outlet;

[0013] The first condenser and the electronic expansion valve are further provided with a proportional valve, the second condenser and the proportional valve are connected in parallel, the output end of the first condenser is connected with the input end of the second condenser, and the output end of the second condenser is connected with the input end of the dehumidification coil through the electronic expansion valve.

[0014] According to some embodiments of the utility model, the system further includes a heat dissipation fan, the power of the heat dissipation fan is greater than that of the dehumidification fan, and the heat dissipation fan is used for dissipating heat for the whole system.

[0015] According to some embodiments of the utility model, when the proportional valve is in a closed state, the refrigerant in a high-temperature and high-pressure state passes through the first condenser, the second condenser, the electronic expansion valve and the dehumidification coil, and then returns to the evaporator.

[0016] According to some embodiments of the utility model, when the proportional valve is in an open state, the refrigerant in a high-temperature and high-pressure state passes through the first condenser, the proportional valve, the electronic expansion valve and the dehumidification coil, and then returns to the evaporator.

[0017] In the second aspect, the utility model provides a kind of energy storage liquid cooling unit electric cabinet, including the integrated temperature and humidity regulating system as described in the above first aspect.

[0018] The integrated temperature and humidity regulating system and the energy storage liquid cooling unit electric cabinet according to the utility model embodiment at least have the following beneficial effects:

[0019] The embodiment realizes efficient dehumidification and energy recycling by reasonably configuring the dehumidification module, the evaporator, the compressor, the first condenser, the electronic expansion valve, the temperature detection device and the control device. Air enters the dehumidification module from the return air outlet, and goes out from the air supply outlet after passing through the dehumidification coil, effectively removing moisture in the air. The evaporator is connected with the dehumidification coil, and the compressor is connected with the evaporator, forming a refrigerant circulation system. The compressor compresses the refrigerant to a high-temperature and high-pressure state, and then the refrigerant passes through the first condenser, the electronic expansion valve and the dehumidification coil to reach the evaporator, realizing energy recovery and recycling. The temperature detection device monitors the temperature in real time and transmits the data to the control device. The control device accurately controls the operating state of each component according to the temperature change, ensures stable operation of the system, and improves the dehumidification effect. The setting of the electronic expansion valve can adjust the refrigerant flow according to the actual demand, avoid excessive or insufficient refrigerant, further improve the system energy efficiency, reduce energy consumption, solve the problem of condensation in the electrochemical energy storage cabinet in a low-cost way, and reduce the space occupied by the electrochemical energy storage cabinet.

[0020] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be more readily understood from the description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 The integrated temperature and humidity adjusting system structure schematic diagram provided by the embodiment of the present application.

[0023] REFERENCE NUMERALS

[0024] Compressor 1, first condensing pipe 2, cooling fan 3, proportional valve 4, electronic expansion valve 5, second condensing pipe 6, dehumidification fan 7, dehumidification coil 8, evaporator 9, air duct shell 10, return air inlet 11, air supply inlet 12. DETAILED DESCRIPTION

[0025] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0026] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the present application.

[0027] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are not included in the number, above, below, etc. are understood to include the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0028] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0029] The integrated temperature and humidity adjusting system and the energy storage liquid cooling unit electric cabinet of the embodiment of the present application will be described in detail below with reference to the drawings.

[0030] In a first aspect, referring to Figure 1 The utility model provides a kind of integrated temperature and humidity adjusting system, comprising:

[0031] Dehumidification module, including air duct shell 10 and dehumidification coil 8, air duct shell 10 is provided with return air inlet 11 and air supply port 12, air enters from return air inlet 11, after dehumidification coil 8, from air supply port 12 go out;

[0032] Evaporator 9, the input end of evaporator 9 is connected with the output end of dehumidification coil 8;

[0033] Compressor 1, the input end of compressor 1 is connected with the output end of evaporator 9;

[0034] First condenser 2, the input end of first condenser 2 is connected with the output end of compressor 1, the output end of first condenser 2 is connected with the input end of dehumidification coil 8, and electronic expansion valve 5 is arranged between dehumidification coil 8 and first condenser 2;

[0035] Temperature detection device (not shown), for detecting temperature;

[0036] Control device (not shown), respectively and evaporator 9, compressor 1, first condenser 2, electronic expansion valve 5 and temperature detection device electric connection;

[0037] Compressor 1 is used for compressing refrigerant, so that the refrigerant is in high-temperature and high-pressure state, and the refrigerant in high-temperature and high-pressure state reaches evaporator 9 after passing through first condenser 2, electronic expansion valve 5 and dehumidification coil 8.

[0038] It can be understood that the refrigerant includes but is not limited to freon and tetrafluoroethane.

[0039] Specifically, compressor 1 sucks low-temperature and low-pressure refrigerant from evaporator 9, compressor 1 compresses the refrigerant to high-temperature and high-pressure gaseous state, the refrigerant is in high-temperature liquid state after condensation through first condenser 2, the refrigerant is throttled and depressurized by electronic expansion valve 5 when passing through electronic expansion valve 5, and the refrigerant after throttling and depressurizing is in low-temperature and low-pressure gaseous-liquid mixed state, the refrigerant reaches dehumidification coil 8 and absorbs heat, the air entering from return air inlet 11 releases heat when passing through dehumidification coil 8, that is, dehumidification coil 8 absorbs heat from the air to cool, and the air goes out from air supply port 12, and the refrigerant returns to evaporator 9 after absorbing heat in dehumidification coil 8 and becomes low-temperature and low-pressure state. It can be understood that the refrigerant gradually changes from gaseous state to liquid state during heat release, and dehumidification coil 8 has dehumidification effect when the cooling temperature is lower than the dew point of air.

[0040] The condensation process in the condenser is an isobaric process, and the refrigerant changes from a saturated gas with a certain superheat degree to a saturated liquid with a certain subcooling degree.

[0041] The electronic expansion valve 5 is a key component in the integrated temperature and humidity control system, and is used to adjust the flow rate of the refrigerant and reduce the pressure thereof.

[0042] According to some embodiments of the present application, the dehumidification module further comprises a second condenser 6 and a dehumidification fan 7.

[0043] The first condenser 2 and the electronic expansion valve 5 are further provided with a proportional valve 4, the second condenser 6 and the proportional valve 4 are connected in parallel, the output end of the first condenser 2 is connected with the input end of the second condenser 6, and the output end of the second condenser 6 is connected with the input end of the dehumidification coil 8 through the electronic expansion valve 5.

[0044] Specifically, only when refrigeration is needed, the temperature detection device detects the temperature rise of the cold carrier and feeds back to the control device.

[0045] According to some embodiments of the present application, the system further comprises a heat dissipation fan 3, and the power of the heat dissipation fan 3 is greater than that of the dehumidification fan 7.

[0046] It should be understood that when the heat dissipation fan 3 is not running, the heat dissipation of the second condenser 6 cannot support the heat absorption of the evaporator 9 in the refrigeration cycle, and the refrigeration cycle cannot run.

[0047] According to some embodiments of the present application, when the proportional valve 4 is in a closed state, the refrigerant in a high-temperature and high-pressure state passes through the first condenser 2, the second condenser 6, the electronic expansion valve 5, the dehumidification coil 8, and then returns to the evaporator 9.

[0048] Specifically, when the proportional valve 4 is in the closed state, the compressor 1 inhales the low-temperature and low-pressure refrigerant in the evaporator 9, compresses the refrigerant into a high-temperature and high-pressure state, and sends it to the first condenser 2, the first condenser 2 condenses the high-temperature and high-pressure refrigerant into a high-temperature liquid state, and because the proportional valve 4 is closed, the refrigerant enters the second condenser 6, at this time, the refrigerant in the second condenser 6 releases heat, and then becomes a low-temperature and low-pressure gas-liquid mixed state through the throttling and pressure reduction of the electronic expansion valve 5, enters the dehumidification coil 8, the refrigerant in the dehumidification coil 8 absorbs heat to cool the air, and then enters the evaporator 9. In the state that the proportional valve 4 is closed, the air enters from the return air outlet 11 of the dehumidification module, is cooled and dehumidified by the dehumidification coil 8 and the dehumidification fan 7, and then passes through the second condenser 6, the high-temperature and high-pressure refrigerant of the second condenser 6 releases heat, that is, heats the air, so as to achieve the purpose of heating and dehumidifying, and the refrigerant of the dehumidification coil 8 returns to the evaporator 9 after absorbing heat from the air, and is evaporated in a low-temperature and low-pressure state.

[0049] According to some embodiments of the present application, when the proportional valve 4 is in the open state, the high-temperature and high-pressure refrigerant returns to the evaporator 9 after passing through the first condenser 2, the proportional valve 4, the electronic expansion valve 5 and the dehumidification coil 8.

[0050] Specifically, when only cooling is started, the control device controls the proportional valve 4 to remain open, and the dehumidification fan 7 remains closed, the compressor 1 inhales the low-temperature and low-pressure refrigerant in the evaporator 9, compresses the refrigerant into a high-temperature and high-pressure state, and sends it to the first condenser 2, the first condenser 2 condenses the high-temperature and high-pressure refrigerant into a high-temperature liquid state, and because the proportional valve 4 is open, the refrigerant will pass through the shortest path without passing through the second condenser 6. The refrigerant passes through the proportional valve 4, and after throttling and pressure reduction through the electronic expansion valve 5, a low-temperature and low-pressure gas-liquid mixed state is formed, and flows to the dehumidification coil 8, the refrigerant absorbs heat in the dehumidification coil 8, that is, cools the air, and then enters the evaporator 9. Only the dehumidification coil 8 in the dehumidification module cools the air; when cooling and dehumidifying, the control device controls the dehumidification fan 7 to start running on the basis of only cooling.

[0051] It should be understood that in the case that the proportional valve 4 is open or closed, the refrigerant of the dehumidification coil 8 is low-temperature and low-pressure, and cools the air. At the same time, part of the refrigerant in the dehumidification coil 8 is not converted into a gaseous state, and these refrigerants will become low-temperature and low-pressure gas after entering the evaporator 9.

[0052] In the above embodiment, "low-temperature and low-pressure" and "high-temperature and high-pressure" are relative to the air in the normal temperature state.

[0053] In the second aspect, the utility model provides a kind of energy storage liquid cooling unit electric cabinet, including integrated temperature and humidity regulating system as above described first aspect.

[0054] The integrated temperature and humidity adjusting system has the advantages that the dehumidification module, the evaporator 9, the compressor 1, the first condenser 2, the electronic expansion valve 5, the temperature detecting device and the control device are reasonably configured, efficient dehumidification and energy recycling are realized, air enters the dehumidification module from the return air outlet 11, is removed of moisture after passing through the dehumidification coil 8 and goes out from the air supply outlet 12, the evaporator 9 is connected with the dehumidification coil 8, the compressor 1 is connected with the evaporator 9, a refrigerant circulation system is formed, the compressor 1 compresses the refrigerant to a high-temperature and high-pressure state, the refrigerant reaches the evaporator 9 after passing through the first condenser 2, the electronic expansion valve 5 and the dehumidification coil 8, energy recycling is realized, the temperature detecting device monitors the temperature in real time and transmits data to the control device, the control device accurately controls the operation state of each component according to temperature change, stable operation of the system is ensured, dehumidification effect is improved, the electronic expansion valve 5 can adjust the refrigerant flow according to actual needs, refrigerant excess or deficiency is avoided, system energy efficiency is further improved, energy consumption is reduced, the problem of condensation generated by the electrochemical energy storage cabinet is solved in a low-cost manner, and electrochemical energy storage cabinet space occupation is reduced.

[0055] In the description of the present specification, the description of referring to the terms "one embodiment", "further embodiment", "some specific embodiments" or "some examples" and the like means that the specific features, structures or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An integrated temperature and humidity conditioning system, characterized by, The integrated temperature and humidity conditioning system comprises: a dehumidification module, comprising an air duct shell and a dehumidification coil, the dehumidification coil being arranged in the air duct shell, the air duct shell being provided with an air return port and an air supply port, air entering from the air return port, passing through the dehumidification coil and then going out from the air supply port; an evaporator, an input end of the evaporator being connected with an output end of the dehumidification coil; a compressor, an input end of the compressor being connected with an output end of the evaporator; a first condenser, an input end of the first condenser being connected with an output end of the compressor, an output end of the first condenser being connected with an input end of the dehumidification coil, an electronic expansion valve being arranged between the dehumidification coil and the first condenser; a temperature detection device for detecting temperature; a control device, being electrically connected with the evaporator, the compressor, the first condenser, the electronic expansion valve and the temperature detection device respectively; wherein the compressor is used for compressing refrigerant, so that the refrigerant is in a high-temperature and high-pressure state, the refrigerant in the high-temperature and high-pressure state passing through the first condenser, the electronic expansion valve and the dehumidification coil and then reaching the evaporator.

2. The integrated temperature and humidity control system according to claim 1, characterized in that The dehumidification module further comprises a second condenser and a dehumidification fan arranged in the air duct shell, air entering from the air return port, sequentially passing through the dehumidification coil, the dehumidification fan and the second condenser and then going out from the air supply port; a proportional valve is further arranged between the first condenser and the electronic expansion valve, the second condenser and the proportional valve being connected in parallel, an output end of the first condenser being connected with an input end of the second condenser, an output end of the second condenser being connected with the input end of the dehumidification coil through the electronic expansion valve.

3. The integrated temperature and humidity control system according to claim 2, wherein, The integrated temperature and humidity conditioning system further comprises a heat dissipation fan, the power of the heat dissipation fan being greater than that of the dehumidification fan, the heat dissipation fan being used for dissipating heat for the whole system.

4. The integrated temperature and humidity control system of claim 2, wherein, When the proportional valve is in a closed state, the refrigerant in the high-temperature and high-pressure state passes through the first condenser, the second condenser, the electronic expansion valve and the dehumidification coil and then returns to the evaporator.

5. The integrated temperature and humidity control system of claim 2, wherein, When the proportional valve is in an open state, the refrigerant in the high-temperature and high-pressure state passes through the first condenser, the proportional valve, the electronic expansion valve and the dehumidification coil and then returns to the evaporator.

6. An energy storage liquid cooling unit electric cabinet, comprising the integrated temperature and humidity conditioning system according to any one of claims 1-5.

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