High-low voltage switch cabinet with explosion-proof function

Abstract

The invention discloses a high-low voltage switch cabinet with an explosion-proof function. Cooling liquid is injected by opening a water inlet valve, and a driving pump and a cooler are started, so that the situation that a conventional heat dissipation mode is too simple is avoided, and the cooling effect is improved; a drying box is pulled out for replacement, so that the situation that a drying agent is inconvenient to replace and is often inconvenient to use is avoided, and the convenience is improved; by starting a dust collector, dust in a switch cabinet body is blown into an exhaust pipe through a dust hood to be discharged, so that poor contact of a power system caused by adsorption of a large amount of dust in the cabinet body to the device is avoided, and the cleanliness is improved; and if explosion occurs inside, impact force collides with a buffer plate, the buffer plate extrudes a buffer spring to absorb energy for protection, and a pressure relief groove plays a role in exhausting, so that the situation that the cabinet body is decomposed and splashed to the periphery due to the fact that no buffer pressure relief function exists when explosion occurs inside and the impact force is outward is avoided, and the protection effect is improved.

Description

technical field [0001] The invention relates to the technical field of high and low voltage switch cabinets, in particular to a high and low voltage switch cabinet with an explosion-proof function. Background technique [0002] As the name implies, the high and low voltage switchgear is a device for connecting high-voltage or low-voltage cables. Generally, power supply bureaus and substations use high-voltage cabinets, which are then stepped down by transformers to low-voltage cabinets, and then to the power distribution boxes. It is nothing more than an electrical device that assembles some protective devices such as switch circuit breakers into one. [0003] As disclosed in the invention patent 201520892336.3, "A ventilation and explosion-proof high and low voltage switchgear", the fireproof and explosion-proof high and low voltage switchgear emphasizes its fireproof and explosionproof performance, which improves the sealing performance, resulting in poor heat dissipation ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a high and low voltage switchgear with explosion-proof function to solve the problem of poor heat dissipation due to the emphasis on the fireproof and explosion-proof performance of the fireproof and explosion-proof high and low voltage switchgear proposed in the above background technology to improve the sealing performance. , the heat generated by the electrical components inside the box cannot be dissipated in time, which seriously affects the normal operation of the electrical components inside the high and low voltage switchgear, thereby shortening the service life of the electrical components inside the high and low voltage switchgear. At the same time, the existing technology In the conventional switchgear, fans are generally installed for heat dissipation, but the conventional heat dissipation method is too simple, and impurities can easily enter the interior of the switchgear through the fan to block the electrical equipment, affecting the heat dissipation effect of the electrical equipment, and the use effect is not ideal. A large amount of dust is adsorbed on the device, resulting in poor contact of the power system, which may cause the switchgear to fail to operate and cause a short circuit to cause an explosion. At the same time, if it is used for a long time, if it is in a humid environment, moisture such as dew will be generated inside, and these moisture will adhere to the cabinet. Every corner of the body, if not dealt with in time, water droplets will cause a short circuit and damage the internal circuit, and it is not easy to replace the desiccant. Pressure relief function, so as to cause the cabinet to disintegrate and splash to the surrounding problems

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