FIR-RETARDING METHOD AND DEVICE FOR AEROSOL FIRE EXTINGUISHER

摘要

The present invention relates to a fir-retarding method and device for an aerosol fire extinguisher. Because a fire-retarding baffle (41) and a drainage wall (42) are set, and a smoke through hole (44) is processed on a horn mouth (43), fire is retarded, and at the same time, it not only can be ensured that hot aerosol smoke flows smoothly and is not sprayed explosively due to excessively great pressure, but also can be ensured that smoke concentration and intensity of air pressure at a nozzle do not decrease, thereby ensuring extinguishment efficiency of the hot aerosol fire extinguisher. In the present invention, fire is enabled to form a vortex at a position close to the nozzle, which reduces spray kinetic energy, thereby ensuring that fire is sealed inside an inner cylinder of the aerosol fire extinguisher. The principle is simple, and no great change is brought to an original structure. The fire-retarding device of the present invention has simple processes, and only one simple heat-resistant shell is needed, and therefore, costs are low, and assembly is convenient, which are beneficial to industrial production.