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영어

Gas explosions in cutting nozzle happen frequently. For the case of gas explosion, LPG container valve is opened, but torch valve is closed. Slow gas leakage during night is the reason of gas explosion. Backfire measurements and gas valve durability experiments are performed by KS B 4601. Internal defects in the torch result in explosions. Depending on the kinds of gases, gas leakages of torch is measured by a gas detection camera. The most dangerous explosion is occurred by leaking the mixture of LPG and oxygen. For the gas torch and the oxygen cutting system, equipments for the prevention of backfire and durability test and related regulatory laws must be reinforced, to prevent the gas explosion accidents.