SMELL SUBSTANCE INJECTION DEVICE IN GAS FIRE-FIGHTING APPARATUS

摘要

PURPOSE: To issue a warning to a person ready to enter a fire-fighting area by the smell emitted from the smell substance mixed with gas for fire-fighting. ;CONSTITUTION: In the smell substance injection device connected to a fire- fighting gas supply pipe 1, the cylinder port sealing plate 7 and outlet sealing port 8 of a chemical soln. tank 3 storing a smell substance and-a high pressure gas cylinder 4 are opened by pushing up a piston 5 by pressure gas and the smell substance in the tank 3 is injected in the fire-fighting gas supply pipe 1 by the pressure gas in the cylinder 4 and the smell substance is mixed with fire-fighting gas to be emitted to a fire area.;COPYRIGHT: (C)1994,JPO&Japio