关键词: 阻火器, 呼吸阀, 储罐, 　安全防范

Abstract: Fire and explosion are unavoidable. The focus of safety precautions in the tank area is to prevent fire and explosion from spreading to the entire tank farm. Flame arresters and breather valves are essential protective devices for the safety in production and environmental protection. The intrinsic safety of flame arresters and breather valves is an important link in achieving safety in production. Flame arresters can prevent flame spread and breather valves can prevent destruction of tanks from overpressure and vacuum. The latest international standard ISO 16852 requires that flame arr esters shall be tested against flame spread and flow measurement and a type approval by a third party shall be issued accordingly. The use of a 10% overpressure breather valve can effectively control the waste-gas emissions from the storage tanks. Safety standards for flame arresters and breather valves must be raised to meet the rigorous requirements for environmental protection.

Key words: flame arrester, breather valve, storage tank, safety precautions