Ventilation type anti-explosion window

Abstract

The invention relates to a ventilation type anti-explosion window applied to front and back doors of a switch cabinet. The ventilation type anti-explosion window comprises a door body, an opening triangular opening hole suspension frame, a dustproof protective net, a protective plate and an upward S-shaped bracket; when the protective plate is closed, a whole ventilating port can be covered; and in a free state, the lower end is limited on the inner wall of the upward S-shaped bracket, so that the protective plate can be limited between the ventilating port and the inner wall of the upward S-shaped bracket to swing freely. The ventilation type anti-explosion window has the beneficial effects as follows: in a normal sate, the protective plate is suspended on the opening triangular opening hole suspension frame under the self gravity, and a ventilating window is in an open state to realize ventilation and heat dissipation; when an accident occurs, the protective plate is pushed to the ventilating window under the effect of a high-temperature and high-pressure gas generated by explosion to seal the ventilating window; the apparatus adopts a line contact type hinge form, so that a swinging shaft part does not suffer from friction force and damping; and therefore, sensitive response can be made and actions can be performed rapidly in accidents.

Description

technical field [0001] The invention relates to a ventilated explosion-proof window, which is applied to the front and rear doors of a high-voltage switch cabinet. Background technique [0002] In the design of the cabinet door of the current high-voltage power distribution cabinet, in order to meet the protection level and strength requirements, the original cabinet door design adopts measures such as adding rubber sealing strips on the door, and the purpose of better airtightness in the structural form. Although this structural form improves the protection level, it greatly restricts the ventilation and heat dissipation performance in the cabinet, which also brings many problems. Condensation is easy to occur in the cabinet when the ambient temperature drops; what’s more, when the temperature changes too much, the condensation is too concentrated and it is easy to form water droplets. threaten. For this reason, some manufacturers have designed ventilation windows on the ...

AI Technical Summary

Problems solved by technology

Although this structural form improves the protection level, it greatly restricts the ventilation and heat dissipation performance in the cabinet, which also brings many problems. Condensation is easy to occur in the cabinet when the ambient temperature drops; what’s more, when the temperature changes too much, the condensation is too concentrated and it is easy to form water droplets. threaten

For this reason, some manufacturers have designed ventilation windows on the cabinet door of the power distribution cabinet, which has a better ventilation and heat dissipation effect, and at the same time reduces the generation of condensation, but this has created new problems, that is, when the switch cabinet When a short-circuit accident occurs in the cabinet, the high-temperature and high-pressure gas generated by the explosion will be sprayed out of the cabinet through the ventilation window, posing a great threat to the personal safety of operation and maintenance personnel.

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