A high-low voltage power distribution cabinet live cleaning, cooling and fire extinguishing device

Abstract

This utility model relates to the field of fire protection technology, specifically to a live-line cleaning, cooling, and fire extinguishing device for high and low voltage switchgear. The device includes a cabinet with a liquid storage tank at the top and a liquid dispensing system at the bottom. A breather valve is installed on the top of the liquid storage tank, which stores perfluorohexanone. The liquid dispensing system includes a high-pressure pump, a liquid dispensing pipeline, a pumping pipeline, and a winch. The liquid dispensing pipeline is connected at both ends to the liquid storage tank and the inlet of the high-pressure pump, respectively. One end of the pumping pipeline is connected to the outlet of the high-pressure pump, and the other end is connected to a hose wound around the winch. The cabinet also contains a cleaning gun and a cooling and fire extinguishing gun. This utility model enables live-line cleaning, cooling, and fire extinguishing of high and low voltage switchgear, achieving safer and more efficient maintenance of high and low voltage switchgear, improving power grid operation and maintenance, and reducing power outage losses and fires.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, specifically to a live cleaning, cooling and fire extinguishing device for high and low voltage distribution cabinets. Background Technology

[0002] High and low voltage distribution cabinets are power distribution equipment used in power supply systems for power distribution, control, metering, and cable connection. Generally, power supply bureaus and substations use high voltage distribution cabinets, and then the voltage is stepped down to the low voltage side by a transformer and led out to low voltage distribution cabinets. Low voltage distribution cabinets are equipment that assemble switches, circuit breakers, fuses, buttons, indicator lights, meters, wires and other protective devices into a single unit to meet the design functional requirements.

[0003] During operation, high and low voltage switchgear easily accumulates contaminants such as dust, oil, and salt, leading to decreased insulation performance, increased partial discharge, and even flashover accidents, seriously threatening power grid safety. Furthermore, the complex internal structure of high and low voltage switchgear, integrating electrical components such as circuit breakers, contactors, and relays, causes prolonged operation under energized conditions, resulting in increased internal temperatures and potential fire hazards. Current technologies also make it difficult to maintain high and low voltage switchgear, hindering cleaning and cooling. Summary of the Invention

[0004] This invention addresses the problems of existing technologies in maintaining high and low voltage switchgear, and inconvenience in cleaning and cooling it. It provides a live-line cleaning, cooling, and fire extinguishing device for high and low voltage switchgear. This device enables live-line cleaning, cooling, and fire extinguishing of high and low voltage switchgear, achieving safer and more efficient maintenance, improving power grid operation and maintenance, and reducing power outage losses and fires.

[0005] To achieve the above objectives, the technical solution of this utility model is: a live-line cleaning, cooling, and fire extinguishing device for high and low voltage switchgear, comprising a cabinet, a liquid storage tank at the top of the cabinet, and a liquid dispensing system at the bottom. A breather valve is installed on the top of the liquid storage tank, and the tank contains perfluorohexanone. The liquid dispensing system includes a high-pressure pump, a dispensing pipeline, a pumping pipeline, and a winch. The liquid storage tank serves to store perfluorohexanone, and the breather valve maintains the pressure balance inside the tank. The liquid dispensing system is used to output the perfluorohexanone from the tank, utilizing it for cleaning, cooling, and fire extinguishing of the high and low voltage switchgear.

[0006] The outlet pipeline is connected to the storage tank and the inlet of the high-pressure pump at both ends, respectively. One end of the pumping pipeline is connected to the outlet of the high-pressure pump, and the other end is connected to a rubber hose, which is wound around the winch. The high-pressure pump pumps the perfluorohexanone from the storage tank through the outlet pipeline and the pumping pipeline to the rubber hose.

[0007] The cabinet is also equipped with a cleaning gun and a cooling fire extinguishing gun. The cleaning gun is connected to a hose, through which perfluorohexanone can be sprayed to clean the high and low voltage distribution cabinets; the cooling fire extinguishing gun is connected to a hose, through which perfluorohexanone can be sprayed to cool down or extinguish fires in the high and low voltage distribution cabinets.

[0008] Furthermore, the top of the cabinet has a mounting hole for installing a breather valve; the bottom of the cabinet is equipped with multiple casters; and a front door panel is provided on the front side of the cabinet. The design of the mounting hole allows the breather valve to be installed on the top of the liquid storage tank, the casters facilitate movement of the device, and the front door panel facilitates the pulling out of the hose wound on the winch.

[0009] Furthermore, the liquid dispensing system also includes an overflow pipe, a motor, a solenoid valve, and a pressure sensor. The motor is connected to the high-pressure pump and provides power to it. The solenoid valve is located on the liquid dispensing pipe, and the pressure sensor is located at the outlet end of the high-pressure pump. The solenoid valve controls the opening and closing of the liquid dispensing pipe, and the pressure sensor detects the perfluorohexanone delivery pressure.

[0010] Furthermore, a pressure regulating overflow valve is provided at the connection between the pumping pipeline and the high-pressure pump. The two ends of the overflow pipeline are connected to the storage tank and the pressure regulating overflow valve, respectively. The pressure regulating overflow valve regulates the pressure of the liquid outlet system, and excess perfluorohexanone flow can flow back into the storage tank through the overflow pipeline.

[0011] Furthermore, a support plate is fixedly installed on the winch, and an opening is formed on the support plate for the hose to pass through. A limiting baffle is fixedly fitted onto the other end of the hose, and the limiting baffle is located on the outside of the support plate. The limiting baffle acts as a barrier for the hose, preventing the hose wound on the winch from becoming loose.

[0012] Furthermore, both the cleaning gun and the cooling fire extinguishing gun have quick-connect couplings at their inlet ends. The cleaning gun's outlet end is connected to a fan-shaped nozzle via a universal ball joint, and the cooling fire extinguishing gun's outlet end is connected to a circular nozzle. Connecting the cleaning gun to the fan-shaped nozzle expands the working area and improves cleaning efficiency; connecting the cooling fire extinguishing gun to the circular nozzle increases the spray distance.

[0013] Furthermore, the bottom of the storage tank is connected to a drain pipe, which is equipped with a manual valve; a liquid level sensor is installed inside the storage tank. The liquid level sensor can detect the level of perfluorohexanone inside the storage tank.

[0014] Furthermore, the cabinet is equipped with a controller with operation buttons, and an LCD screen is installed on the upper part of the cabinet.

[0015] The beneficial effects of this utility model through the above technical solution are as follows:

[0016] This utility model has a reasonable structure and good performance. It can perform live cleaning, cooling and fire extinguishing operations on high and low voltage distribution cabinets, achieving safer and more efficient maintenance of high and low voltage distribution cabinets, improving the level of power grid operation and maintenance, and reducing power outage losses and fires.

[0017] The present invention has a storage tank that stores perfluorohexanone, and a liquid discharge system for outputting the perfluorohexanone from the storage tank. The perfluorohexanone is used for cleaning, cooling and fire extinguishing of high and low voltage power distribution cabinets. The high-pressure pump pumps the perfluorohexanone from the storage tank into the rubber hose through the liquid discharge pipeline and the pumping pipeline, thereby achieving the effect of outputting the perfluorohexanone from the storage tank.

[0018] This invention connects a cleaning gun to a hose, allowing perfluorohexanone inside the storage tank to be sprayed out through the cleaning gun, thus cleaning high and low voltage switchgear. This cleans dust and other contaminants accumulated during the operation of the switchgear, preventing a decline in its insulation performance and an increase in partial discharge, thereby improving the level of power grid operation and maintenance. The cleaning gun is connected to a fan-shaped nozzle, which can expand the working area and improve cleaning efficiency.

[0019] This invention connects a cooling fire extinguishing gun to a hose. Perfluorohexanone inside the storage tank can be sprayed out through the cooling fire extinguishing gun to cool or extinguish high and low voltage power distribution cabinets. When sprayed into the cabinet, perfluorohexanone can cool the interior of the high and low voltage power distribution cabinets; when sprayed into the fire area, perfluorohexanone can extinguish the fire in the fire area. The cooling fire extinguishing gun is connected to a circular nozzle, which can increase the spray distance and ensure the personal safety of the operator. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a live cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of a live cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to this utility model. Figure 2 (Excluding the front door panels);

[0022] Figure 3 This is a schematic diagram of the structure of a live cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to this utility model. Figure 3 (Excluding the front door panels);

[0023] Figure 4 This is a schematic diagram of the structure of a live cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to this utility model. Figure 4 (Excluding cabinets);

[0024] Figure 5 This is a schematic diagram of the structure of a live cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to this utility model. Figure 5 (Excluding cabinets).

[0025] The attached diagram is labeled as follows: 1 is the cabinet, 2 is the front door panel, 3 is the LCD screen, 4 is the operation button, 5 is the caster wheel, 6 is the cleaning gun, 7 is the cooling fire extinguishing gun, 8 is the liquid storage tank, 9 is the breather valve, 10 is the motor, 11 is the high-pressure pump, 12 is the liquid outlet pipe, 13 is the solenoid valve, 14 is the pumping pipe, 15 is the overflow pipe, 16 is the pressure regulating overflow valve, 17 is the pressure sensor, 18 is the winch, 19 is the hose, 20 is the limit baffle, 21 is the sewage discharge pipe, and 22 is the manual valve. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0027] like Figures 1-5 As shown, a high and low voltage switchgear live cleaning, cooling and fire extinguishing device includes a cabinet 1. The upper part of the cabinet 1 is provided with a liquid storage tank 8 and the lower part is provided with a liquid discharge system. The top of the liquid storage tank 8 is provided with a breather valve 9. The liquid storage tank 8 stores perfluorohexanone. The liquid discharge system includes a high pressure pump 11, a liquid discharge pipeline 12, a pumping pipeline 14 and a winch 18.

[0028] In this embodiment, the breathing valve 9 adopts the Chinese utility model patent CN217153149U, which describes a breathing valve for a fluorinated ketone storage tank in a fluorinated ketone fire extinguishing system. The breathing valve 9 is used to maintain the balance of air pressure inside the storage tank 8, and perfluorohexanone can be added to the storage tank 8 through the breathing valve port.

[0029] The liquid discharge system is used to output the perfluorohexanone inside the storage tank 9. Perfluorohexanone is used to clean, cool and extinguish high and low voltage power distribution cabinets. Perfluorohexanone is used as a cleaning agent, cooling agent and fire extinguishing agent in this utility model.

[0030] Perfluorohexanone (PFH) is used for live cleaning of high and low voltage switchgear. PFH boasts a dielectric strength of up to 110 kV, far exceeding that of air and other common liquid media. PFH liquid contains no freely moving charged ions, preventing electrochemical reactions upon contact with electrical equipment and thus avoiding damage to precision electronic components. Its low surface tension allows it to penetrate even the smallest crevices, effectively removing dust, oil, and carbon deposits, making it suitable for maintaining precision electronic equipment. PFH has no corrosive effect on metals (such as copper, aluminum, and stainless steel) and plastics, and will not damage the insulation or connecting parts of electrical equipment. With a boiling point of only 49.2℃, PFH easily vaporizes at room temperature, rapidly evaporating after cleaning and leaving no conductive residue or water stains on the equipment surface, thus avoiding secondary pollution.

[0031] Perfluorohexanone can be used to cool high and low voltage switchgear. Perfluorohexanone has a boiling point of 49.2℃ and is a liquid at room temperature. However, when it comes into contact with a high-temperature surface or environment, it will quickly evaporate into a gas. This phase change process (liquid → gas) requires the absorption of a large amount of heat (latent heat of vaporization of about 88 kJ / kg), thereby rapidly reducing the surrounding temperature. This characteristic makes it very effective in local cooling scenarios.

[0032] Perfluorohexanone (PFH) is used for extinguishing fires in high and low voltage electrical distribution cabinets. It provides heat absorption and cooling: during vaporization, PPH absorbs a large amount of heat from the surrounding environment (high latent heat of vaporization), rapidly reducing the temperature of the fire source and inhibiting the combustion chain reaction. Chemical inhibition: the fluorine atoms in its molecular structure can interfere with free radical reactions during combustion, interrupting the combustion chain reaction. Asphyxiation effect: after vaporization, it dilutes the oxygen concentration. High environmental friendliness: ozone depletion potential (ODP) = 0, does not damage the ozone layer; short atmospheric survival time (approximately 5 days); degradation products are non-toxic. High safety: colorless, odorless, non-conductive, and non-corrosive to electronic equipment; extremely low toxicity (NOAEL = 10%), suitable for use in occupied areas; leaves no residue after extinguishing, requiring no cleanup.

[0033] The outlet pipe 12 is connected at both ends to the storage tank 8 and the inlet of the high-pressure pump 11, respectively. One end of the pumping pipe 14 is connected to the outlet of the high-pressure pump 11, and the other end is connected to a hose 19, which is wound around the winch 18. In this embodiment, the upper end of the outlet pipe 12 is connected to the bottom of the storage tank 8. Through the action of the high-pressure pump 11, the perfluorohexanone inside the storage tank 8 can be pumped to the hose 19 via the outlet pipe 12 and the pumping pipe 14. The perfluorohexanone is then output through the hose 19 for live cleaning, cooling, or fire extinguishing of the high and low voltage distribution cabinet. The winch 18 is a telescopic winch with a self-locking function, which is existing technology and will not be described in detail here. The hose 19 is a wireless hose, and a quick connector is connected to the end of the hose 19.

[0034] The cabinet 1 is also equipped with a cleaning gun 6 and a cooling fire extinguishing gun 7. In this embodiment, the cleaning gun 6 has a short barrel with a length of 40cm, which makes it easy to control the distance from the cleaning surface. The cleaning gun 6 has a PTFE insulating coating on the outside. The cooling fire extinguishing gun 7 has a long barrel with a length of 100cm. The handles and barrels of both the cleaning gun 6 and the cooling fire extinguishing gun 7 are made of plastic, which can prevent the electricity from the high and low voltage distribution cabinet from being conducted to the main unit and the human body, thus realizing safe live cleaning operation.

[0035] The cleaning gun 6 is connected to the hose 19, and perfluorohexanone can be sprayed out through the cleaning gun 6 to clean the high and low voltage distribution cabinets; the cooling fire extinguishing gun 7 is connected to the hose 19, and perfluorohexanone can be sprayed out through the cooling fire extinguishing gun 7 to cool down or extinguish the fire in the high and low voltage distribution cabinets.

[0036] The top of the cabinet 1 has a mounting hole for installing the breathing valve 9; the bottom of the cabinet 1 is provided with multiple casters 5, and the front side of the cabinet 1 has a front door panel 2. In this embodiment, the mounting hole provides an installation position for the breathing valve 9. There are four casters 5 at the bottom of the cabinet 1, which are respectively installed at the corners of the bottom of the cabinet 1. The casters 5 facilitate the movement of the device by the operator. The casters 5 can be omnidirectional wheels and have a braking function. The front door panel 2 is hinged to the cabinet 1. The front door panel 2 facilitates the opening of the cabinet 1 so that the hose 19 can be pulled out from the cabinet 1 and connected to the cleaning gun 6 or the cooling fire extinguishing gun 7.

[0037] The liquid discharge system also includes an overflow pipe 15, a motor 10, a solenoid valve 13, and a pressure sensor 17. The motor 10 is connected to the high-pressure pump 11 and provides power to the high-pressure pump 11. The motor 10 is a 220V AC motor. The solenoid valve 13 is located on the liquid discharge pipe 12, and the pressure sensor 17 is located at the outlet end of the high-pressure pump 11. In this embodiment, the solenoid valve 13 is used to control the opening and closing of the liquid discharge pipe 12, and the pressure sensor 17 detects the pressure of perfluorohexanone delivery.

[0038] A pressure regulating overflow valve 16 is provided at the connection between the pumping pipeline 14 and the high-pressure pump 11. The two ends of the overflow pipeline 15 are respectively connected to the storage tank 8 and the pressure regulating overflow valve 16. In this embodiment, the pressure regulating overflow valve 16 plays the role of regulating the pressure of the liquid outlet system, and excess perfluorohexanone flow can flow back into the storage tank 8 through the overflow pipeline 15.

[0039] A support plate is fixedly installed on the winch 18, and an opening is formed on the support plate for the hose 19 to pass through. A limiting baffle 20 is fixedly fitted onto the other end of the hose 19, and the limiting baffle 20 is located on the outside of the support plate. In this embodiment, the diameter of the limiting baffle 20 is larger than the width of the opening. The limiting baffle 20 acts as a barrier to the hose 19, effectively preventing the hose 19 wound on the winch 18 from becoming loose.

[0040] Both the cleaning gun 6 and the cooling fire extinguishing gun 7 have quick-connect couplings at their inlet ends. The cleaning gun 6 has a fan-shaped nozzle connected to its outlet end via a universal ball joint, and the cooling fire extinguishing gun 7 has a circular nozzle connected to its outlet end. In this embodiment, the cleaning gun 6 and the cooling fire extinguishing gun 7 can be quickly connected to the hose 19 via quick-connect couplings. The fan-shaped nozzle is a single-hole fan-shaped nozzle, which expands the working area and improves cleaning efficiency. The circular nozzle is a single-hole circular nozzle, which has a long spray distance, ensuring that personnel are kept away from the fire scene during firefighting and guaranteeing the personal safety of the operators.

[0041] The bottom of the storage tank 8 is also connected to a drain pipe 21, and a manual valve 22 is installed on the drain pipe 21; a liquid level sensor is installed inside the storage tank 8. In this embodiment, opening the manual valve 22 allows the storage tank 8 to be drained through the drain pipe 21; the liquid level sensor can detect the perfluorohexanone level in the storage tank 8.

[0042] The cabinet 1 is also equipped with a controller, which has operation buttons 4. The upper part of the cabinet 1 is equipped with an LCD screen 3. In this embodiment, the controller is electrically connected to the motor 10, the solenoid valve 13, the LCD screen 3, the pressure sensor 17, and the liquid level sensor. The operation buttons 4 can control the solenoid valve 13 to open and close the outlet pipe 12, and control the start and stop of the high-pressure pump 11. The LCD screen 3 can display the system pressure and the liquid level of the storage tank 8.

[0043] In addition, this utility model requires a 220V three-hole socket for power supply. This utility model comes with an 8-meter power cord, which is wound on a reel made of plastic.

[0044] The working principle of this utility model is as follows: When it is necessary to clean the high and low voltage distribution cabinet while it is energized, open the front door panel 2, connect the cleaning gun 6 and the hose 19 through a quick connector, and pull the hose 19 out of the cabinet 1. Adjust the direction of the fan-shaped nozzle and the gun barrel of the cleaning gun 6 through the universal ball joint, and control the distance between the fan-shaped nozzle and the cleaning surface of the high and low voltage distribution cabinet to be 10-15cm. Open the solenoid valve 13 and the high-pressure pump 11 through the operation button 4. The high-pressure pump 11 pumps the perfluorohexanone in the storage tank 8 through the outlet pipe 12 and the pumping pipe 14 to the hose 19, and then delivers it to the cleaning gun 6 through the hose 19. Because the fan-shaped nozzle connected to the cleaning gun 6 sprays the perfluorohexanone... The high and low voltage distribution cabinets are cleaned under live conditions. When cleaning the front surface of the cabinets, the fan-shaped nozzles are adjusted so that they are concentric with the gun handle of the cleaning gun 6, and the nozzles are positioned downwards in a straight line, swinging left and right for cleaning. When cleaning the left and right surfaces, the nozzles are adjusted so that they are at a 45° angle to the gun handle of the cleaning gun 6, and the nozzles are positioned horizontally in a straight line, swinging up and down for cleaning. When cleaning the top and bottom surfaces, the nozzles are adjusted so that they are at a 45° angle to the gun handle of the cleaning gun 6, and the nozzles are positioned downwards in a straight line, swinging left and right for cleaning.

[0045] When it is necessary to cool down the high and low voltage distribution cabinet, open the front door panel 2, connect the cooling fire extinguisher 7 to the hose 19 through a quick connector, and pull the hose 19 out of the cabinet 1. Then, open the solenoid valve 13 and the high pressure pump 11 through the operation button 4. The high pressure pump 11 pumps the perfluorohexanone in the storage tank 8 through the outlet pipe 12 and the pumping pipe 14 to the hose 19, and then through the hose 19 to the cooling fire extinguisher 7. The circular nozzle connected to the cooling fire extinguisher 7 sprays the perfluorohexanone evenly into the high and low voltage distribution cabinet. Then close the front door panel 2 to achieve the cooling of the high and low voltage distribution cabinet.

[0046] When it is necessary to extinguish a fire in areas such as high and low voltage distribution cabinets or distribution rooms, open the front door panel 2, connect the cooling fire extinguisher 7 to the hose 19 through a quick connector, and pull the hose 19 out of the cabinet 1. Then, open the solenoid valve 13 and the high-pressure pump 11 through the operation button 4. The high-pressure pump 11 pumps the perfluorohexanone in the storage tank 8 through the outlet pipe 12 and the pumping pipe 14 to the hose 19, and then delivers it to the cooling fire extinguisher 7 through the hose 19. The circular nozzle connected to the cooling fire extinguisher 7 sprays the perfluorohexanone onto the fire area to extinguish the fire.

[0047] The embodiments described above are merely preferred embodiments of the utility model and are not intended to limit the scope of the utility model. Therefore, all equivalent changes or modifications made to the technical solutions described in the scope of the utility model patent application should be included within the scope of the utility model patent application.

Claims

1. A live cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets, comprising a cabinet body (1), characterized in that, The cabinet (1) is equipped with a liquid storage tank (8) at the top and a liquid discharge system at the bottom. The liquid storage tank (8) is equipped with a breather valve (9) at the top and perfluorohexanone is stored inside the liquid storage tank (8). The liquid discharge system includes a high-pressure pump (11), a liquid discharge pipeline (12), a pumping pipeline (14), and a winch (18). The liquid outlet pipeline (12) is connected to the liquid storage tank (8) and the inlet of the high pressure pump (11) at both ends respectively. One end of the pumping pipeline (14) is connected to the outlet of the high pressure pump (11), and the other end is connected to a rubber hose (19). The rubber hose (19) is wound around the winch (18). The cabinet (1) is also equipped with a cleaning gun (6) and a cooling fire extinguishing gun (7).

2. The high and low voltage switchgear live cleaning, cooling, and fire extinguishing device according to claim 1, characterized in that, The top of the cabinet (1) is provided with a mounting hole for installing a breathing valve (9); the bottom of the cabinet (1) is provided with multiple casters (5); and the front side of the cabinet (1) is provided with a front door panel (2).

3. The high and low voltage switchgear live cleaning, cooling, and fire extinguishing device according to claim 1, characterized in that, The liquid discharge system also includes an overflow pipe (15), a motor (10), a solenoid valve (13), and a pressure sensor (17); the motor (10) is connected to the high-pressure pump (11) and is used to provide power to the high-pressure pump (11); the solenoid valve (13) is installed on the liquid discharge pipe (12); and the pressure sensor (17) is installed at the outlet end of the high-pressure pump (11).

4. A live-line cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to claim 3, characterized in that, A pressure regulating overflow valve (16) is provided at the connection between the pumping pipeline (14) and the high-pressure pump (11). The two ends of the overflow pipeline (15) are connected to the liquid storage tank (8) and the pressure regulating overflow valve (16) respectively.

5. A live-line cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to claim 1, characterized in that, A support plate is fixedly installed on the winch (18), and an opening is provided on the support plate for the hose (19) to pass through. A limiting baffle (20) is fixedly fitted on the other end of the hose (19), and the limiting baffle (20) is located on the outside of the support plate.

6. A live-line cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to claim 1, characterized in that, The inlet ends of the cleaning gun (6) and the cooling fire extinguishing gun (7) are both connected to quick connectors. The outlet end of the cleaning gun (6) is connected to a fan-shaped nozzle through a universal ball joint. The outlet end of the cooling fire extinguishing gun (7) is connected to a circular nozzle.

7. A live-line cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to claim 3, characterized in that, The bottom of the liquid storage tank (8) is also connected to a drain pipe (21), and a manual valve (22) is installed on the drain pipe (21); a liquid level sensor is installed inside the liquid storage tank (8).

8. A live-line cleaning, cooling, and fire extinguishing device for high and low voltage distribution cabinets according to claim 7, characterized in that, The cabinet (1) is also equipped with a controller, which has operation buttons (4), and the upper part of the cabinet (1) is equipped with an LCD screen (3).

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