Natural energy storage cooling cabinet

Abstract

The utility model discloses a natural energy storage cooling cabinet which comprises a main control device, an electric energy refrigeration unit and a phase change energy storage air processing unit. The electric energy refrigeration unit comprises a refrigerator for circulating outdoor air, an outdoor cooling fan and a heat exchanger; the phase change energy storage air treatment unit comprises a cabinet body, the heat exchanger is fixed at the top end of the cabinet body, and a phase change energy storage device, a first fan and three independent air channels are arranged in the cabinet body; when the outdoor temperature is low, the main control device controls the first air channel and the third air channel to be opened, indoor return air enters a room through the heat exchanger and the first air channel, and the phase change energy storage device absorbs cold energy from outdoor air; and when the outdoor temperature is high, the main control device controls the second air duct to be opened, indoor return air enters a room through the heat exchanger and the second air duct, the phase change energy storage device releases cold energy to the indoor return air, and the purposes that the 5G machine room is cooled with low energy consumption, and indoor air is kept clean are achieved.

Description

Technical Field

[0001] This utility model relates to an indoor air temperature regulation device, specifically a natural energy storage cooling cabinet. Background Technology

[0002] With the rapid development of 5G communication technology, the number of 5G base stations is increasing. The equipment rooms of 5G base stations have strict requirements on air cleanliness and temperature. Outdoor air cannot be directly introduced into the equipment room to ensure that there is no polluting air inside. The equipment room relies on air conditioning to achieve cooling, and the air conditioning runs 24 hours a day. Therefore, cooling of 5G base stations is becoming an increasingly important issue for energy conservation and emission reduction. Summary of the Invention

[0003] The purpose of this utility model is to provide a cooling cabinet that can achieve low-energy cooling of indoor air in 5G computer rooms and keep the indoor air clean.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a natural energy storage cooling cabinet is provided, characterized in that it includes a main control device, an electric cooling unit and a phase change energy storage air handling unit respectively connected to the main control device; the electric cooling unit includes a refrigeration unit, an outdoor cooling fan and a heat exchanger, outdoor air circulates among the three, and the top of the heat exchanger is provided with an indoor return air vent connected to the indoor air.

[0005] The phase change energy storage air handling unit includes a cabinet, the top of which is fixedly connected to a heat exchanger, the air inlet at the top of the cabinet is connected to the air outlet at the bottom of the heat exchanger, and the side of the cabinet is provided with an indoor air outlet, an outdoor air inlet and an outdoor air outlet. An indoor air inlet fan is provided at the indoor air outlet, and an air valve is provided at the outdoor air inlet and outlet.

[0006] The lower part of the cabinet is equipped with a phase change energy storage device, and above the phase change energy storage device is a corresponding first fan. The cabinet is also equipped with three independent air ducts controlled by the main control device. The first air duct is for indoor return air entering the room through the air inlet at the top of the cabinet, the air valve, and the indoor air intake fan. The second air duct is for indoor return air entering the room through the air inlet at the top of the cabinet, the air valve, the first fan, the phase change energy storage device, the air valve, and the indoor air intake fan. The third air duct is for outdoor air entering the room through the outdoor air inlet, the air valve, the phase change energy storage device, the first fan, the air valve, and the outdoor air outlet.

[0007] When the outdoor temperature is lower than the phase change temperature of the phase change energy storage device, the main control device automatically controls the opening of the first and third air ducts and the closing of the second air duct. At this time, the return air in the room is heated by the heat exchanger and then enters the room through the first air duct. At the same time, the phase change energy storage device absorbs cold energy from the outdoor air. When the outdoor temperature is higher than the phase change temperature of the phase change energy storage device, the main control device automatically controls the closing of the first and third air ducts and the opening of the second air duct. The return air in the room is heated by the heat exchanger and then enters the room through the second air duct. The phase change energy storage device releases cold energy into the return air in the room.

[0008] Furthermore, the phase change energy storage device consists of a shell and a phase change material located inside the shell, and the shell is composed of multiple U-shaped or S-shaped hollow units connected in sequence.

[0009] Therefore, the phase change energy storage device has a U-shaped or S-shaped labyrinth air duct.

[0010] The phase change temperature of the phase change energy storage device is determined by the phase change material inside its shell. Depending on the geographical location of the 5G base station and the specific temperature control requirements, the phase change temperature of the phase change energy storage device can be adjusted by changing the phase change material inside the phase change energy storage device.

[0011] Preferably, the phase change temperature of the phase change energy storage device of this invention is 15-20 degrees Celsius.

[0012] Furthermore, the cabinet has a heat insulation structure, that is, the cabinet is composed of three layers: inner, middle and outer, with the middle layer made of heat insulation material.

[0013] Beneficial effects of this utility model

[0014] This utility model relates to a natural energy storage cooling cabinet. The electric refrigeration unit circulates outdoor air to provide cooling for the heat exchanger. The phase change energy storage air handling unit has three independent air ducts. When the outdoor temperature is lower than the phase change temperature of the phase change energy storage device, the main control device automatically opens the first and third air ducts and closes the second air duct. At this time, the return air inside the cabinet exchanges heat with the heat exchanger and then enters the room sequentially through the air inlet at the top of the cabinet, the air valve, and the indoor air intake fan. Simultaneously, the phase change energy storage device absorbs cold energy from the outdoor air. When the outdoor temperature is higher than the phase change energy storage temperature... When the phase change temperature of the device is reached, the main control device automatically controls the first and third air ducts to close and the second air duct to open. At this time, the phase change energy storage device releases cold energy, and the indoor return air enters the room after absorbing the cold energy through the phase change energy storage device. The indoor and outdoor air circulation of this utility model does not interfere with each other, which not only ensures that the cold energy from nature is transferred to the room through heat exchange, but also ensures the cleanliness of the indoor air. The phase change energy storage device automatically stores and releases cold energy, achieving the purpose of cooling the indoor air of the 5G equipment room with low energy consumption and maintaining the cleanliness of the indoor air. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the opening state of the first and third air ducts inside this utility model;

[0017] Figure 3 This is a schematic diagram showing the open state of the second internal air duct of this utility model;

[0018] Explanation of reference numerals in the attached figures:

[0019] 1 heat exchanger, 11 indoor return air vents;

[0020] 2. Outdoor cooling fans;

[0021] 3 cabinets, 31 top air inlet of the cabinet, 32 indoor air outlet;

[0022] 33 Outdoor air inlet, 34 Outdoor air outlet;

[0023] 4. Indoor air intake fans;

[0024] 5-phase change energy storage device;

[0025] 6. First wind turbine;

[0026] 7. Air valve. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] like Figures 1 to 3 As shown, this utility model discloses a natural energy storage cooling cabinet, including a main control device, an electric cooling unit and a phase change energy storage air handling unit respectively connected to the main control device; the electric cooling unit includes a refrigeration unit, an outdoor cooling fan 2, and a heat exchanger 1, and outdoor air circulates among the three, with an indoor return air vent 11 provided on the top of the heat exchanger 1.

[0029] The phase change energy storage air handling unit includes a cabinet 3. The top of the cabinet is fixedly connected to the heat exchanger 2. The air inlet 31 at the top of the cabinet is connected to the air outlet at the bottom of the heat exchanger. The side of the cabinet is provided with an indoor air outlet 32 ​​and outdoor air inlets and outlets 33 and 34. An indoor air inlet fan 4 is provided at the indoor air outlet 32, and air valves 7 are provided at the outdoor air inlets and outlets 33 and 34.

[0030] The lower part of the cabinet 3 is equipped with a phase change energy storage device 5, and a corresponding first fan 6 is installed above the phase change energy storage device. The cabinet 3 is also equipped with three independent air ducts controlled by the main control device. The first air duct is: the return air in the room is heat exchanged by the heat exchanger 1, and then enters the room through the air inlet 31 at the top of the cabinet, the air valve, and the indoor air intake fan 4 in sequence. The second air duct is: the return air in the room is heat exchanged by the heat exchanger 1, and then enters the room through the air inlet 31 at the top of the cabinet, the air valve, the first fan 6, the phase change energy storage device 5, the air valve, and the indoor air intake fan 4 in sequence. The third air duct is: the outdoor air is discharged to the outside through the outdoor air inlet 33, the air valve, the phase change energy storage device 5, the first fan 6, the air valve, and the outdoor air outlet 34 in sequence.

[0031] When the outdoor temperature is lower than the phase change temperature of the phase change energy storage device 5, the main control device automatically controls the first and third air ducts to open and the second air duct to close. At this time, the phase change energy storage device 5 stores cold energy, that is, it absorbs the cold energy in the air. When the outdoor temperature is higher than the phase change temperature of the phase change energy storage device, the main control device automatically controls the first and third air ducts to close and the second air duct to open. At this time, the phase change energy storage device releases cold energy, that is, it cools the indoor return air.

[0032] Furthermore, the phase change energy storage device 5 consists of a shell and a phase change material located inside the shell, and the shell is composed of multiple U-shaped or S-shaped hollow units connected in sequence.

[0033] Therefore, the phase change energy storage device 5 has a U-shaped or S-shaped labyrinth air duct, which can be used to fully exchange heat with the air.

[0034] The phase change temperature of the phase change energy storage device 5 is determined by the phase change material inside its shell. Depending on the geographical location of the 5G base station and the specific temperature control requirements, the phase change temperature of the phase change energy storage device 5 can be adjusted by changing the phase change material inside the phase change energy storage device 5, thereby meeting the actual needs.

[0035] Preferably, the phase change temperature of the phase change energy storage device of this invention is 15-20 degrees Celsius. In specific applications, the phase change material inside the phase change energy storage device 5 can be adjusted according to actual needs to achieve a suitable phase change temperature.

[0036] Phase change energy storage device 5 uses cold air to store energy in phase change materials. When the outdoor temperature is higher than the phase change temperature of the phase change energy storage device, the phase change energy storage device releases cold energy to achieve energy saving and emission reduction.

[0037] The phase change energy storage device 5 stores and releases energy simultaneously, so it can maintain constant temperature and cool down 24 hours a day in all-weather conditions. Typically, the phase change energy storage device 5 stores energy when it is cold at night and releases cold energy when it is hot during the day, thus solving the problem of cooling and maintaining constant temperature around the clock.

[0038] Furthermore, the cabinet has a thermal insulation structure, meaning it consists of three layers: inner, middle, and outer, with the middle layer made of thermal insulation material. This thermal insulation structure ensures that the temperature inside the cabinet is not lost.

[0039] The thermal insulation material is rubber or other non-thermal conductive materials.

[0040] Furthermore, in order to ensure the airtightness of the heat exchanger 1 of this utility model, in addition to the airtightness of the heat exchanger 1 itself, a sealing gasket is provided between the flange surfaces of the heat exchanger 1 and the indoor environment to ensure that the internal circulating air and the external circulating air are absolutely not connected after the screws are tightened.

[0041] This utility model is equipped with multiple air valves 7 to control heat exchange and indoor and outdoor air circulation. The opening and closing of each air valve 7 is automatically controlled by the main control device.

[0042] This invention ensures that indoor and outdoor air circulation do not interfere with each other, guaranteeing that the cooling energy from nature is transferred to the indoor environment through heat exchange, while also ensuring the cleanliness of the indoor air. The phase change energy storage device can automatically store and release cooling energy. Specifically, when the outdoor temperature is lower than the phase change temperature of the phase change energy storage device, the device absorbs the cooling energy from the outdoor air; when the outdoor temperature is higher than the phase change temperature, the device releases the cooling energy into the indoor air. This achieves the goal of cooling the indoor air of 5G equipment rooms with low energy consumption and maintaining the cleanliness of the indoor air.

[0043] The above embodiments are only used to explain the technical solution of this utility model. Those skilled in the art can make various substitutions of the same or equivalent technical means based on this technical solution. All technical solutions obtained by using the same or equivalent technical means are within the scope of protection of the claims of this utility model.

Claims

1. A natural energy storage cooling cabinet, characterized in that, It includes a main control device, an electric cooling unit and a phase change energy storage air handling unit respectively connected to the main control device; the electric cooling unit includes a refrigerator, an outdoor cooling fan and a heat exchanger, and outdoor air circulates among the three; the top of the heat exchanger is provided with an indoor return air vent that connects to the indoor air. The phase change energy storage air handling unit includes a cabinet, the top of which is fixedly connected to a heat exchanger, the air inlet at the top of the cabinet is connected to the air outlet at the bottom of the heat exchanger, and the side of the cabinet is provided with an indoor air outlet, an outdoor air inlet and an outdoor air outlet. An indoor air inlet fan is provided at the indoor air outlet, and an air valve is provided at the outdoor air inlet and outlet. The lower part of the cabinet is equipped with a phase change energy storage device, and above the phase change energy storage device is a corresponding first fan. The cabinet also has three independent air ducts controlled by the main control device. The first air duct is as follows: indoor return air is heated by the heat exchanger and then enters the room through the air inlet at the top of the cabinet, the air valve, and the indoor air intake fan in sequence. The second air duct is as follows: indoor return air is heated by the heat exchanger and then enters the room through the air inlet at the top of the cabinet, the air valve, the first fan, the phase change energy storage device, the air valve, and the indoor air intake fan in sequence. The third air duct is as follows: outdoor air is discharged to the outside through the outdoor air inlet, the air valve, the phase change energy storage device, the first fan, the air valve, and the outdoor air outlet in sequence. When the outdoor temperature is lower than the phase change temperature of the phase change energy storage device, the main control device automatically controls the opening of the first and third air ducts and the closing of the second air duct. At this time, the indoor return air is heated by the heat exchanger and enters the room through the first air duct. At the same time, the phase change energy storage device absorbs cold energy from the outdoor air. When the outdoor temperature is higher than the phase change temperature of the phase change energy storage device, the main control device automatically controls the closing of the first and third air ducts and the opening of the second air duct. The indoor return air is heated by the heat exchanger and enters the room through the second air duct. The phase change energy storage device releases cold energy into the indoor return air.

2. The natural energy cooling cabinet according to claim 1, wherein, The phase change energy storage device consists of a shell and a phase change material located inside the shell. The shell is composed of multiple U-shaped or S-shaped hollow units connected in sequence.

3. The natural energy cooling cabinet according to claim 2, characterized in that, The phase change energy storage device has a U-shaped or S-shaped labyrinth air duct.

4. The natural energy cooling cabinet according to claim 2, wherein, The phase change temperature of the phase change energy storage device is determined by the phase change material inside its shell, and the phase change temperature of the phase change material is 15-20 degrees.

5. The natural energy cooling cabinet of claim 1, wherein, The cabinet has a thermal insulation structure, which consists of three layers: inner, middle and outer, with the middle layer made of thermal insulation material.

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