Explosion-proof positive pressure power distribution cabinet

Abstract

The invention discloses an explosion-proof positive pressure power distribution cabinet. The explosion-proof positive pressure power distribution cabinet comprises: a housing, an air inlet and an airoutlet which are formed in the housing, an air inlet pipe assembly disposed at the air inlet, and an explosion-proof deflation assembly disposed at the air outlet; the air inlet pipe assembly comprises: an air inlet pipe, a first suction fan disposed at an inlet of the air inlet pipe, and an electromagnetic valve disposed on the air inlet pipe; the explosion-proof deflation assembly includes a ventilating box which is fixed on the air outlet and having a first through hole, a ventilating cover which is corresponding to the first through hole and has a second through hole, a second suction fandisposed on the ventilating cover, a sealing assembly for sealing the first through hole, and an electronic telescopic rod for controlling the opening and closing of the first through hole and connected to the sealing assembly. The invention can seal the power distribution cabinet, can prevent external moisture, flammable and explosive gas, and dust from entering the power distribution cabinet, can monitor the pressure and the temperature of the power distribution cabinet in real time, and can automatically realize explosion-proof decompression and heat dissipation; the safety is improved, theautomatic level is improved, and the manpower burden is reduced.

Description

technical field [0001] The invention relates to the field of power distribution cabinets, in particular to an explosion-proof positive pressure power distribution cabinet. Background technique [0002] Most of the power distribution cabinets used in the market are non-sealed, so the non-sealed power distribution cabinets and chassis cannot prevent the entry and accumulation of humid air, flammable and explosive gases, wind and sand dust, and cause electrical components to be corroded, mildewed and damaged. Oxidation is prone to dangers such as electrical failure and explosion, which seriously shortens the service life of the equipment and becomes a major problem in the use of electrical equipment. In order to prevent the entry of humid air, flammable and explosive gases, and wind and sand dust, sealed power distribution cabinets have also appeared in the market, but the heat dissipation effect is poor. For high-heating instruments, the heat cannot be dissipated, and it is al...

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Problems solved by technology

[0002] Most of the power distribution cabinets used in the market are non-sealed, so the non-sealed power distribution cabinets and chassis cannot prevent the entry and accumulation of humid air, flammable and explosive gases, wind and sand dust, and cause electrical components to be corroded, mildewed and damaged. Oxidation is prone to dangers such as electrical failure and explosion, which seriously shortens the service life of the equipment and becomes a major problem in the use of electrical equipment

In order to prevent the entry of humid air, flammable and explosive gases, and wind and sand dust in the market, sealed power distribution cabinets have also appeared, but the heat dissipation effect is poor. For high-heating instruments, the heat cannot be dissipated, and it is also easy to explode.

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