A fire extinguishing system using sand positive pressure injection and its realization method

Abstract

The invention relates to a sand positive pressure jet fire extinguishing system and its realization method. The parameters of pressurization time, pressure and sand blasting time are set in the monitoring system, and commands are issued through PLC. For sand, when the high material level of the material level detection device is triggered, the PLC sends an instruction to close the feeding valve to complete one charging. When sandblasting, PLC sends an instruction to open the air compressor. When the compressed air pressure reaches the set value, the air supply valve group opens, and the compressed air enters the sand storage tank in three ways. When the pressurization time and pressure reach the set value After the value is reached, the PLC sends an instruction to open the discharge valve and start sandblasting. The sand pump is pressurized by compressed air to form a continuous sand flow, which forms continuous and uninterrupted impact coverage or absorption and burying of the fire source of special substances to achieve the purpose of fire extinguishing. Strong adaptability, no chemical reaction, no secondary disasters, low cost of sandblasting, and strong practical operability. It is suitable for the fire extinguishing of fire sources of different nature and different areas.

Description

technical field [0001] The present invention relates to a fire extinguishing system using sand positive pressure jetting and its implementation method. The continuous sand flow formed by sand positive pressure jetting is used to impact and cover or absorb and bury the fire source to realize fire extinguishing. Extinguishing applications for fire sources. Background technique [0002] As we all know, the current domestic fire extinguishing methods mainly include water sprinkler system, foam system, gas fire extinguishing system and so on. The water sprinkler system is only suitable for fires in ordinary fire places, and its adaptability is not strong. It is easy to cause danger to use the sprinkler system to extinguish the fire of some special substances. The foam system also contains water, which is also prone to danger when it encounters special substances and chemical reactions, and its adaptability is not strong, while gas fire extinguishing is easy to blow away the fire...

AI Technical Summary

Problems solved by technology

The water sprinkler system is only suitable for fires in ordinary fire places, and its adaptability is not strong. It is easy to cause danger to use the sprinkler system to extinguish the fire of some special substances.

The foam system also contains water, which is also prone to danger when encountering special substances, and the chemical reaction is not strong, and the gas fire extinguishing is easy to blow away the fire on the fire site, causing secondary disasters

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