Vehicular compressed air foam fire-extinguishing system

Abstract

The invention relates to a vehicular compressed air foam fire-extinguishing system comprising a water supply device, a foam supply device, compressed air supply device, water-foam mixing liquor pipeline and foam jet device. The foam supply device comprises a electric plunger type foam pump, an automatic control module for water-foam mixing proportion, flow meter mounting on water-foam mixing liquor pipeline; the automatic control module for water-foam mixing proportion controls rotation speed of electric plunger type foam pump according to flow signal provided by the flow meter so as to control foam liquor flow; the foam jet device is used to eject water-foam-compressed air mixing liquid in water-foam mixing liquid pipeline. The invention has merits of accurate control for foam proportion, high automation degree, easy operation, improved fire-extinguishing efficiency; the invention can clean pipeline, cools power takeoff, water pump gear box lubricant and air compressor lubricant heatexchanger, pour water in tank and release residual water.

Description

technical field [0001] The invention relates to the field of fire protection, in particular to a compressed air foam fire extinguishing system for vehicles. Background technique [0002] Compressed air foam fire extinguishing system for vehicles is a new type of fire extinguishing technology. It can mix liquid water with foam liquid in a certain proportion, and then in the same compressed air in a certain proportion, in the pipeline or in the hose. Pre-mixed and sprayed through a foam spray device. [0003] At present, many air compressed foam fire extinguishing systems are composed of water pumps, foam proportional mixing devices, air compressors, gas-liquid mixers for guns, spoilers for guns, gas-liquid mixers for guns, spoilers for guns, and fire water cannons. , fire water gun and other components. The pressure water source provided by the water pump flows through the foam proportional mixing device and mixes with the foam liquid in the system according to the specifie...

AI Technical Summary

Problems solved by technology

This kind of positive pressure supply of foam liquid using compressed air as power avoids system pressure fluctuations caused by negative pressure supply, but the foam mixing ratio is still not easy to adjust quickly and accurately, and in the case of a small flow rate, the foam Scale deviation

[0004] Many of the current air compressed foam fire extinguishing systems still use manual control, and the degree of automation is not high, resulting in complex system operations. immeasurable loss

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