Thin water mist fire extinguishing system

Abstract

The invention relates to a thin water mist fire extinguishing system comprising a filter, a water tank, a water supply pump, a water pump control valve, zone valves, water mist spray nozzles and an alarm device. One end of the filter is connected with a water source through a water source valve, and the other end of the filter is connected with the water tank through a pipeline. One end of the water supply pump is connected with the water tank through the pipeline, and the other end of the water supply pump is connected with the zone valves through the pipelines. The water pump control valve is connected with the water supply pump, the zone valves and the alarm device respectively through electric signals. The water mist spray nozzles are connected with the zone valves through the pipelines. Compared with the prior art, the sum of the volume of water particles with the diameters of less than 200 MMum in water mist jet flow sprayed by the thin water mist fire-extinguishing system is not less than 90% of the total volume, the size of water drops of the thin water mist is small, and the thin water mist has large specific surface area, high density and good smoke-removing effect.

Description

technical field [0001] The invention relates to a fire extinguishing system, in particular to a fine water mist fire extinguishing system. Background technique [0002] Water spray fire extinguishing systems in the prior art mainly include fixed and semi-fixed systems. The fixed water spray fire extinguishing system is composed of fire pump room, wet deluge valve, high-speed water mist nozzle and water pump adapter. Close the fire door partition of the fire compartment where the fire occurs, and open the electric contact deluge valve in the corresponding fire compartment at the same time, and the water mist nozzle sprays high-pressure water mist to achieve the purpose of cooling, cooling, suffocating and finally extinguishing the fire in the fire compartment. The fixed water spray system has the advantages of quick response and good fire extinguishing effect, but the system consists of a large number of water mist nozzles, deluge valves, fire pumps and other equipment, whic...

AI Technical Summary

Problems solved by technology

However, the space of the power tunnel is relatively small, and the cable bridges are arranged in layers, and the cables on each layer of the bridge are also densely laid. The cables arranged in multiple layers have a greater blocking effect on the spray. For example, the nozzles are still arranged on the top of the cables. Or the side, it certainly cannot meet the requirements of the specification that the water mist can be directly sprayed, covered, and can completely envelop the multi-layer cable

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