Explosion-proof control box

Abstract

An explosion-proof control box comprises a control box body, a positive pressure system and a monitoring system, wherein multiple vent holes are distributed in the control box body; each vent hole is provided with a one-way valve; the positive pressure system comprises a gas pump and a gas storage tank storing an inert gas; the gas pump is connected with the gas storage tank for charging the gas to the control box body; the positive pressure system is arranged in the control box body; the monitoring system comprises a temperature detector, a pressure intensity detector and a controller; the temperature detector and the pressure intensity detector are connected with the controller; the controller is connected with the gas pump; the temperature detector is arranged outside the control box body; and the pressure intensity detector is arranged inside the control box body. By adopting positive pressure explosion protection, the high pressure gas fills the control box body, outer air can be prevented from entering the control box body, and in addition, the high pressure gas can be emitted out of the control box body, a gas protection layer is formed around the control box body, and the explosion-proof purpose is achieved. With such structural design, high safety during the use process can be ensured.

Description

technical field [0001] The present invention relates to the technical field of electrical control equipment, and more specifically relates to an explosion-proof control box. Background technique [0002] The control box is a box used to install electrical control components, and is used to prevent the internal control components from being damaged by external impact. Existing control boxes generally only have protection functions, and generally, circuit breakers, contactors, magnetic starting devices, buttons, and indicator lights are arranged inside the control box. When the control box is used in the environment of mining area and dust working conditions (such as chemical plant), explosive gas enters the inside of the control box through the gap, which is very easy to cause an explosion. [0003] In order to avoid the occurrence of the above situation, in actual use, the control box is set away from the dangerous area, and then the mechanical device is remotely controlled...

AI Technical Summary

Problems solved by technology

When the control box is used in the environment of mining areas and dusty working conditions (such as chemical plants), explosive gas enters the inside of the control box through the gap, which is very easy to cause an explosion

[0003] In order to avoid the occurrence of the above situation, in actual use, the control box is set away from the dangerous area, and then the mechanical device is remotely controlled through wiring. In this way, the operation of the equipment cannot be observed at any time. Once the equipment operates abnormally, it cannot Cut off the power in time

In addition, remote control also increases the upfront cost of equipment

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