Extinguishing system for performing blind-spot-free dry powder spraying on large storage tank

Abstract

The invention provides an extinguishing system for performing blind-spot-free dry powder spraying on a large storage tank. The extinguishing system comprises a driving medium, an extinguishment control system, driving medium conveying pipes, extinguishing agent conveying pipes, an extinguishing agent storage tank, a dry powder extinguishing agent, a drive medium control valve and special extinguishing nozzles mounted around the whole storage tank wall at equal intervals, wherein the control system of the extinguishing system comprises a temperature sensing controller connected with temperature sensing devices through pipes; when the temperature sensing devices detect a fire disaster, a detected signal is accurately transmitted to the temperature sensing controller instantly, the drive medium control valve is opened, the drive medium pipes release the drive medium to the extinguishing agent storage tank, the dry powder extinguishing agent is released instantly, the special extinguishing nozzles connected with the extinguishing agent conveying pipes at equal intervals spray the dry powder extinguishing agent to fire ground rapidly, rapid complete covering without blind spots is formed, and the fire is put out rapidly. The system is simple to operate and low in maintenance cost and can automatically start up to rapidly put out the fire disaster of the large storage tank without blind spots, the release rate of the extinguishing agent is not limited, the extinguishing speed is high, the efficiency is high, afterburning is effectively prevented, and the fire disaster of the storage tank can be put out rapidly, effectively and completely when the fire disaster happens.

Description

technical field [0001] The invention belongs to the technical field of fire-fighting and fire-extinguishing systems, and relates to a dry powder fire-extinguishing system for large storage tanks without blind spots. Background technique [0002] Failure to extinguish large-scale chemical oil storage tank fires in the first place will bring huge property losses and environmental pollution to the society. The longer the fire burns, the more serious the property losses and environmental pollution will be. Therefore, it is very necessary and effective to install a fire-extinguishing system for large-scale chemical oil storage tanks, which can prevent fire from re-igniting and has an all-round non-blind-spot automatic fire-extinguishing system. [0003] The traditional large storage tank fire extinguishing systems mainly include foam fire extinguishing systems, gas fire extinguishing systems, water system fire extinguishing systems, dry powder fire extinguishing systems, and mobi...

AI Technical Summary

Problems solved by technology

Whether it is a fire extinguishing system or a fire truck spraying agents, each "nozzle" is used as a point-based injection, and the release rate of the agent is severely limited, resulting in the rate at which the agent is sprayed to the fire burning surface of the entire storage tank is much lower than that of the storage tank. The burning speed of the fire in the tank, for large storage tanks, especially chemical oil storage tanks, once a fire occurs, if the fire extinguishing agent breaks out in the storage tank, it cannot completely cover the entire storage tank at the first time, and the burning liquid surface is isolated from oxygen to extinguish the fire. It will cause the fire source to be unable to suffocate instantly, causing a gap between oxygen and the fire source to produce a chain reaction, further leading to more violent combustion of large storage tank fires, and delaying the best effective time to extinguish the storage tank fire

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