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.