Power distribution cabinet with dehumidification function

Abstract

The utility model discloses a power distribution cabinet with a dehumidification function, and relates to the field of high-voltage power distribution cabinets, and the power distribution cabinet comprises a cabinet body, the top of the cabinet body is provided with an air suction opening and a fresh air opening, and the air suction opening and the fresh air opening are communicated through a dehumidification circulation assembly. The dehumidification circulation assembly is used for sucking out moisture from the suction opening to dehumidify the moisture and discharging the dehumidified air into the cabinet body from the fresh air opening. The dehumidification circulation assembly is used for sucking out the moisture from the suction opening, dehumidifying the sucked moisture, and discharging the dehumidified air into the cabinet body from the fresh air opening, so that the air in the cabinet body is dehumidified, the dehumidified air is circulated into the cabinet body again, the device continuously and circularly dehumidifies the air in the cabinet body, and the dehumidification efficiency of the cabinet body is improved. And the air in the cabinet body can be effectively and thoroughly dehumidified.

Description

Technical Field

[0001] The present application relates to the field of high-voltage power distribution cabinets, and in particular to a power distribution cabinet with a dehumidification function. Background Art

[0002] High-voltage distribution cabinet refers to an electrical product with a voltage level of 3.6kV-550kV, which plays the role of switching, controlling or protecting in power generation, transmission, distribution, power conversion and consumption of power system. When installing the high-voltage distribution cabinet, a cable trench is usually set at the bottom of the high-voltage distribution cabinet, and the bottom of the high-voltage cabinet is connected to the cable trench. Due to the large amount of moisture in the underground cable trench, the moisture and humidity in the main cable trench will rise into the high-voltage distribution cabinet through the high-voltage cable hole, which will directly affect the use of the switchgear.

[0003] At present, when dehumidifying a high-voltage distribution cabinet, a desiccant is usually placed inside the cabinet to dry the moisture inside the cabinet.

[0004] However, the above-mentioned dehumidification method requires frequent replacement of the desiccant, and the dehumidification performance of the desiccant is limited, making it difficult to thoroughly dehumidify the gas in the cabinet. Utility Model Content

[0005] In order to improve the dehumidification performance of a high-voltage distribution cabinet, the present application provides a distribution cabinet with a dehumidification function.

[0006] The present application provides a power distribution cabinet with a dehumidification function, which adopts the following technical solution:

[0007] A power distribution cabinet with a dehumidification function comprises a cabinet body, wherein an exhaust port and a fresh air port are respectively provided on the top of the cabinet body, wherein the exhaust port and the fresh air port are connected via a dehumidification cycle component, and the dehumidification cycle component is used for sucking out moisture from the exhaust port to dehumidify it and discharging the dehumidified air from the fresh air port into the cabinet body.

[0008] By adopting the above technical solution, the dehumidification circulation component can be used to suck out moisture from the exhaust port, and the sucked moisture can be dehumidified, and then the dehumidified air can be discharged into the cabinet from the fresh air port, thereby achieving dehumidification of the gas in the cabinet and circulating the dehumidified gas into the cabinet again. The device continuously circulates and dehumidifies the gas in the cabinet, and can effectively and thoroughly dehumidify the gas in the cabinet.

[0009] Preferably, the dehumidification cycle component includes a box body, an exhaust duct connected between the box body and the exhaust port, and a fresh air duct connected between the box body and the fresh air port. A fan, a condenser and a dust filter are sequentially arranged in the box body from one side of the exhaust duct to the other side of the fresh air duct. The fan is used to extract moisture from the cabinet through the exhaust duct and pass the moisture through the condenser and the dust filter in sequence before returning to the cabinet from the fresh air duct.

[0010] By adopting the above technical solution, the fan can be controlled to extract the moisture in the cabinet through the exhaust channel. The extracted air passes through the condenser, and the moisture in the air condenses into water droplets under the action of the condenser. The dry air passes through the dust filter to filter out the dust in the air, and then enters the cabinet through the fresh air duct to form a cycle. It is achieved that the air in the cabinet is dehumidified and filtered at the same time, preventing the dust in the air from adhering to the electronic devices.

[0011] Preferably, the dust filter is a polypropylene filter.

[0012] By adopting the above technical solution, the polypropylene filter has good high temperature resistance and corrosion resistance, and can be well adapted to the use environment of the high-voltage distribution cabinet.

[0013] Preferably, a first humidity sensor is provided in the cabinet.

[0014] By adopting the above technical solution, a first humidity sensor is provided in the cabinet, which can monitor the humidity in the cabinet in real time. After the humidity in the cabinet reaches a set value, the dehumidification cycle component can be controlled to dehumidify the cabinet, so that the dehumidification work is adjusted according to the humidity in the cabinet, thereby effectively reducing the energy consumption of the device.

[0015] Preferably, a wire inlet hole is opened at the bottom of the cabinet, a sealing plug is inserted into the wire inlet hole, and the cable is embedded in the sealing plug.

[0016] By adopting the above technical solution, the sealing plug can effectively reduce the amount of moisture entering the cabinet from the wire inlet hole, thereby preventing a large amount of moisture from entering the cabinet from the wire inlet hole.

[0017] Preferably, the sealing plug is made of silicone rubber.

[0018] By adopting the above technical solution, the silicone adhesive material has good high temperature resistance, deformation resistance and crack resistance, can be better adapted to the working environment of the distribution cabinet, and improves the sealing performance of the cable entry hole.

[0019] Preferably, a second humidity sensor is arranged outside the cabinet, and a ventilation fan is arranged on one side of the cabinet, one end of the ventilation fan is located inside the cabinet, and the other end of the ventilation fan is located outside the cabinet.

[0020] By adopting the above technical solution, a second humidity sensor is installed on the outside of the cabinet, which cooperates with the first humidity sensor to monitor the humidity inside and outside the cabinet in real time. When the humidity outside the cabinet is lower than the internal humidity, the ventilation fan is turned on to exchange the gas inside and outside the cabinet; when the humidity outside the cabinet is higher than the internal humidity, the dehumidification cycle component is used to dehumidify the cabinet.

[0021] Preferably, a partition is provided in the cabinet, a wire hole is provided on the partition, and the partition divides the inner part of the cabinet into an electronic component installation area located at the upper part and a transition area located at the lower part, and the ventilation fan is located in the transition area.

[0022] By adopting the above technical solution, the cabinet is divided into an electronic component installation area and a transition area by using a partition, and the transition area can effectively reduce the impact of moisture on the electrical devices in the electronic component installation area.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By using the dehumidification circulation component to suck out moisture from the air outlet, and dehumidify the sucked moisture, and then discharge the dehumidified air into the cabinet from the fresh air outlet, the gas in the cabinet is dehumidified and the dehumidified gas is circulated into the cabinet again. The device continuously circulates and dehumidifies the gas in the cabinet, which can effectively and thoroughly dehumidify the gas in the cabinet;

[0025] 2. With the help of the first humidity sensor and the second humidity sensor, the humidity inside and outside the cabinet can be monitored in real time. When the humidity outside the cabinet is lower than the humidity inside the cabinet, the ventilation fan is turned on to exchange the gas inside and outside the cabinet; when the humidity outside the cabinet is higher than the humidity inside the cabinet, the dehumidification cycle component is used to dehumidify the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an axonometric diagram mainly showing the overall internal structure of the high-voltage power distribution cabinet in this embodiment;

[0027] Figure 2 This is a cross-sectional schematic diagram mainly showing the structure of a high-voltage power distribution cabinet in this embodiment;

[0028] Figure 3 This is a partial schematic diagram of the dehumidification cycle component mainly embodied in this embodiment.

[0029] Figure numerals: 1. cabinet; 2. exhaust port; 3. fresh air port; 4. dehumidification cycle component; 401. box body; 402. exhaust duct; 403. fresh air duct; 404. fan; 405. condenser; 406. dust filter; 5. first humidity sensor; 6. wire inlet; 7. sealing plug; 8. second humidity sensor; 9. ventilation fan; 10. partition; 11. wire hole; 12. electronic component installation area; 13. transition area; 14. linear slide rail; 15. slider; 16. connecting rod; 17. fixing ring; 18. connecting sleeve. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] An embodiment of the present application discloses a power distribution cabinet with a dehumidification function.

[0032] Reference Figure 1 The power distribution cabinet with dehumidification function includes a cabinet 1, and an exhaust port 2 and a fresh air port 3 are provided on the top of the cabinet 1. At the same time, a dehumidification cycle component 4 is provided on the top of the cabinet 1 to cooperate with the exhaust port 2 and the fresh air port 3. The dehumidification cycle component 4 extracts and dehumidifies the gas in the cabinet 1 through the exhaust port 2, and discharges it into the cabinet 1 through the fresh air port 3. A partition 10 is provided in the cabinet 1, and the cabinet 1 is divided into an electronic component installation area 12 located at the upper part and a transition area 13 located at the lower part. A ventilation fan 9 is provided in the transition area 13 in the cabinet 1, and a first humidity sensor 5 located inside the cabinet 1 and a second humidity sensor 8 located outside the cabinet 1 are respectively provided on the cabinet 1. A wire entry hole 6 is provided at the bottom of the cabinet 1, and the wire entry hole 6 is used to connect the cables in the cable trench to the cabinet 1.

[0033] Reference Figure 1 and Figure 2 The dehumidification cycle assembly 4 includes a box body 401, an exhaust duct 402 connected between the box body 401 and the exhaust port 2, and a fresh air duct 403 connected between the box body 401 and the fresh air port 3. A fan 404, a condenser 405, and a dust filter 406 are sequentially arranged in the box body 401 from one side of the exhaust duct 402 to one side of the fresh air duct 403. The fan 404 is used to extract moisture from the cabinet 1 through the exhaust duct 402, and the moisture passes through the condenser 405 and the dust filter 406 in sequence and then returns to the cabinet 1 from the fresh air duct 403.

[0034] Reference Figure 2 and Figure 3 In the present embodiment, the dust filter 406 is a polypropylene filter. The polypropylene filter has good high temperature resistance and corrosion resistance and can be well adapted to the use environment of a high voltage distribution cabinet.

[0035] The fan 404 is controlled to extract the moisture in the cabinet 1 through the exhaust channel. The extracted air passes through the condenser 405, and the moisture in the air condenses into water droplets under the action of the condenser 405. The dry air passes through the dust filter 406 to filter out the dust in the air, and then enters the cabinet 1 through the fresh air duct 403 to form a cycle. The air in the cabinet 1 is dehumidified and filtered at the same time, preventing the dust in the air from adhering to the electronic devices.

[0036] Reference Figure 2 A connecting sleeve 18 is sleeved on the exhaust duct 402, and a sliding assembly is provided in the cabinet 1. The sliding assembly is used to slide the connecting sleeve 18 along the exhaust duct 402, thereby adjusting the exhaust range of the exhaust duct 402. Repeated adjustment of the sliding assembly can make the exhaust duct exhaust the cabinet 1 more thoroughly.

[0037] Reference Figure 2 The sliding assembly includes a linear slide rail 14 fixedly arranged on a side wall of the cabinet 1, a slider 15 cooperating with the linear slide rail 14 is slidably arranged in the linear slide rail 14, a horizontally arranged connecting rod 16 is fixedly arranged on one end of the slider 15, and a fixing ring 17 is fixedly arranged on the other end of the connecting rod 16. The fixing ring 17 is fixedly sleeved on the connecting sleeve 18 to enable the connecting sleeve 18 to slide along the exhaust duct 402.

[0038] Reference Figure 1 and Figure 2 A sealing plug 7 is inserted into the wire inlet hole 6, and the cable is embedded in the sealing plug 7. The sealing plug 7 can effectively reduce the amount of moisture entering the cabinet 1 from the wire inlet hole 6, thereby preventing a large amount of moisture from entering the cabinet 1 from the wire inlet hole 6.

[0039] In this embodiment, the sealing plug 7 is made of silicone rubber material, which has good high temperature resistance, deformation resistance and crack resistance. It can be well applied to the working environment of the distribution cabinet and improve the sealing performance of the cable entry hole 6.

[0040] Reference Figure 1 and Figure 2 One end of the ventilation fan 9 is located inside the cabinet 1, and the other end of the ventilation fan 9 is located outside the cabinet 1. In conjunction with the first humidity sensor 5 and the second humidity sensor 8, the humidity inside and outside the cabinet 1 is monitored in real time. When the humidity outside the cabinet 1 is lower than the humidity inside the cabinet 1, the ventilation fan 9 is turned on to exchange the gas inside and outside the cabinet 1; when the humidity outside the cabinet 1 is higher than the humidity inside the cabinet 1, the dehumidification circulation component 4 is used to dehumidify the cabinet 1.

[0041] The implementation principle of a power distribution cabinet with a dehumidification function in the embodiment of the present application is as follows: the humidity inside the cabinet 1 and the humidity outside the cabinet 1 are monitored by a first humidity sensor 5 and a second humidity sensor 8. When the humidity outside the cabinet 1 is lower than the humidity inside the cabinet 1, the ventilation fan 9 is turned on to exchange the air inside and outside the cabinet 1, thereby reducing the humidity inside the cabinet 1.

[0042] When the humidity outside the cabinet 1 is greater than the humidity inside the cabinet 1, the cabinet 1 is dehumidified through the dehumidification circulation component 4, and the fan 404 is controlled to extract the moisture inside the cabinet 1 through the exhaust channel. The extracted air passes through the condenser 405, and the moisture inside the air condenses into water droplets under the action of the condenser 405. The dry air passes through the dust filter 406 to filter out the dust in the air, and then enters the cabinet 1 through the fresh air duct 403 to form a cycle;

[0043] At the same time, the control slider 15 moves along the linear slide rail 14, driving the connecting sleeve 18 to slide along the exhaust duct 402, thereby increasing the range of exhaust in the cabinet 1 and making the dehumidification effect more thorough.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A power distribution cabinet with a dehumidification function, comprising a cabinet body (1), characterized in that: The cabinet body (1) is provided with an air exhaust port (2) and a fresh air port (3) at the top thereof. The air exhaust port (2) and the fresh air port (3) are connected to each other via a dehumidification circulation component (4). The dehumidification circulation component (4) is used to absorb moisture from the air exhaust port (2) to dehumidify the moisture and discharge the dehumidified air from the fresh air port (3) into the cabinet body (1).

2. A distribution cabinet with dehumidification function according to claim 1, characterized in that: The dehumidification cycle component (4) comprises a box body (401), an exhaust duct (402) connected between the box body (401) and the exhaust port (2), and a fresh air duct (403) connected between the box body (401) and the fresh air port (3). A fan (404), a condenser (405), and a dust filter (406) are sequentially arranged in the box body (401) from one side of the exhaust duct (402) to the other side of the fresh air duct (403). The fan (404) is used to extract moisture from the cabinet (1) via the exhaust duct (402) and to allow the moisture to pass through the condenser (405) and the dust filter (406) in sequence before returning to the cabinet (1) from the fresh air duct (403).

3. A distribution cabinet with dehumidification function according to claim 2, characterized in that: The dust filter (406) is a polypropylene filter.

4. The power distribution cabinet with dehumidification function according to claim 2, characterized in that: A first humidity sensor (5) is arranged in the cabinet (1).

5. The power distribution cabinet with dehumidification function according to claim 4, characterized in that: The cabinet (1) is provided with a wire entry hole (6) at the bottom, a sealing plug (7) is inserted into the wire entry hole (6), and the cable is embedded in the sealing plug (7).

6. The power distribution cabinet with dehumidification function according to claim 5, characterized in that: The sealing plug (7) is made of silicone rubber.

7. The power distribution cabinet with dehumidification function according to claim 5, characterized in that: A second humidity sensor (8) is arranged outside the cabinet (1), and a ventilation fan (9) is arranged on one side of the cabinet (1), one end of the ventilation fan (9) is located inside the cabinet (1), and the other end of the ventilation fan (9) is located outside the cabinet (1).

8. The power distribution cabinet with dehumidification function according to claim 7, characterized in that: A partition (10) is provided in the cabinet (1), and a wire hole (11) is provided in the partition (10). The partition (10) divides the interior of the cabinet (1) into an electronic component installation area (12) located at the top and a transition area (13) located at the bottom. The ventilation fan (9) is located in the transition area (13).

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