Abstract: As the gas produced in the retorting process of oil shale refining can be used as raw materials for gas burning devices such as the gas electric generator and gas boilers, there are certain risks of fire and explosion in the application process, which is prone to production safety accidents. The gas fire safety device can be widely used in the gas-medium combustion system, installed in the pipeline section before entering the combustion system. The installation of this device can play the role of gas fire resistance, gas leakage prevention, gas cut-off during overhaul and so forth.

Key words: gas fire resistance, fire protection design, fire protection device