Automatic powder spraying firefighting device used in mining area

Abstract

The invention discloses an automatic powder spraying firefighting device used in a mining area. The automatic powder spraying firefighting device comprises a pressure storage type ABC superfine dry powder fire extinguisher, a one-way valve, a mining intrinsic safety type pressure transformer, a mining intrinsic safety type electromagnetic valve, a manual valve, a mining area automatic powder spraying fire extinguisher controller, an audible and visual alarm, a mining smoke sensor, a mining intrinsic safety type flame sensor and a nozzle, wherein the pressure storage type ABC superfine dry powder fire extinguisher is connected with the nozzle through the one-way valve, the mining intrinsic safety type electromagnetic valve and the manual valve; the mining area automatic powder spraying fire extinguisher controller is connected with the mining intrinsic safety type pressure transformer, the mining intrinsic safety type electromagnetic valve, the audible and visual alarm, the mining smoke sensor and the mining intrinsic safety type flame sensor respectively. The automatic powder spraying firefighting device has the advantages that full-automatic unattended operation of fire extinguishment can be achieved, fire hazard can be accurately, reliably and rapidly judged in time, high firefighting efficiency can be achieved and firefighting dead angles can be avoided, and the initial purposes of safety, rapidness and high efficiency can be achieved.

Description

technical field [0001] The invention relates to the field of fire extinguishing devices, in particular to an automatic powder spraying fire extinguishing device for mining areas. Background technique [0002] Due to the existence of gas in coal mines, fires can easily be caused by open flames, poor operation of electromechanical equipment, mechanical friction, short circuits, etc. The combustion and explosion often cause casualties and property losses. Fire is one of the main mine disasters and poses a huge threat to coal mine safety production. Therefore, it is very necessary and urgent to do a good job in coal mine fire prevention and rapid treatment. [0003] There are two ways to extinguish the fire in the underground area: direct fire extinguishing and isolated fire extinguishing. Direct fire extinguishing uses methods such as fire extinguishing agent and digging out the fire source to extinguish the fire directly. And when the underground fire cannot be directly ext...

AI Technical Summary

Problems solved by technology

[0007] First, the manual fire extinguishing device cannot automatically monitor the sudden fire. Only after the fire is found manually, the fire extinguishing operation is performed, and the response to the fire is seriously delayed, which may easily cause the fire to spread and cause greater losses; Close-distance operation, but when the fire is large, it cannot be close to the fire source, resulting in a serious drop in fire extinguishing ability; the fire extinguishing ability of a single fire extinguishing device is limited, and often requires multiple people to operate multiple fire extinguishing devices at the same time to achieve significant results, increasing the manual workload and increasing risk of personal injury

[0008] Second, the suspended automatic powder spraying fire extinguishing device only judges the fire situation by simple temperature-sensitive glass, and the powder spraying reaction is lagging behind, so it cannot suppress the initial fire situation in time, and makes a misjudgment when there is no fire; There is a manual valve, but it cannot be used because of its high suspension; under the strength of the temperature-sensitive glass material, it is easy to cause non-thermal expansion and shattering, resulting in mis-spraying of powder; Press without installation space

The automatic sprinkler fire extinguishing system uses water with low fire extinguishing ability as the fire extinguishing agent, which makes the fire extinguishing efficiency of the system low, requires a large amount of water, and takes a relatively long time to extinguish the fire. At the same time, the sprayed water is easy to cause fatal damage to electrical equipment.

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