Vehicle-mounted self-water-sprinkling fire extinguishment system used for coal mines

Abstract

The invention belongs to the field of coal mine underground work, and discloses a vehicle-mounted self-water-sprinkling fire extinguishment system used for coal mines. The vehicle-mounted self-water-sprinkling fire extinguishment system comprises a water storage tank, a gas storage tank and multiple spray nozzles arranged in an engine cabin. An air compressor on a vehicle anti-explosion diesel engine is connected with a gas inlet of the gas storage tank after passing a check valve. A gas outlet of the gas storage tank is connected to a gas inlet of a hand-operated fire valve and a gas inlet ofan automatic fire valve, wherein the hand-operated fire valve and the automatic fire valve are connected in parallel. A gas outlet of the hand-operated fire valve and a gas outlet of the automatic fire valve are connected with three loops. The first loop is connected to a fuel cut-off cylinder and a gas cut-off cylinder of an engine. The second loop is connected with a pressurization valve. The pressurization valve is connected with the water storage tank. The third loop is connected with a pneumatic control reversing valve. The pneumatic control reversing valve is arranged on a connection loop between the water storage tank and the spray nozzles. Water is used as the fire extinguishment medium of the system, and the build-in gas storage tank on an anti-explosion vehicle is used as a pressurization gas source; and meanwhile no electrical element is arranged, wide popularization in coal mine underground vehicles is facilitated, and important significance for improving the operation safety of the vehicles is achieved.

Description

technical field [0001] The invention belongs to the field of coal mine underground operations, and in particular relates to a vehicle-mounted self-sprinkler fire extinguishing system for coal mines. Background technique [0002] During the operation of vehicles driven by explosion-proof diesel engines in coal mines, the surface temperature of the engine is high. During normal maintenance, oil stains (including diesel oil, engine oil, hydraulic oil, etc.) will inevitably accumulate on the surface. A large amount of coal dust, if the engine occasionally runs out of water, the surface temperature will rise rapidly, and the body will even burn red, which will eventually ignite combustibles such as oil stains and dust, resulting in an open flame. Due to the large amount of ventilation in the underground tunnel and the narrow space, If the fire is not extinguished in time, the fire will expand rapidly and it is difficult to extinguish it. At the same time, the underground air also...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of the lack of an effective fire extinguishing system for vehicles driven by explosion-proof diesel engines in coal mines, the present invention further provides a vehicle-mounted self-sprinkler fire extinguishing system for coal mines

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