一种发生火灾自动关闭的热敏切断阀详细介绍

热敏切断阀、热敏切断球阀、火灾切断阀、熔断阀是用于当环境温度达到设定值时自动切断易燃气体或液体或任何其他潜在危险介质的管道系统。一旦火灾发生，这些阀门将自动终止易燃气体或液体或任何其他潜在危险介质的供应，终止或者降低火灾事故所造成的危害。在发生火灾时，熔断阀的熔断器在达到预设值的时候自动分离，进而驱动阀门***的执行器，阀门由常开变成常闭或由常闭变成常开。熔断阀拥有不同的温度设置值，可根据项目实际情况，自由选择，通常，熔断阀的设定温度宜大于环境温度30℃。在易燃储罐进出口系统中，是一个非常理想的选择。另外熔断阀在使用过程中只需在线更换熔断器即可重复使用，从而降低了使用成本。

At present, manual, electric and pneumatic valves are still widely used to control the root valves and pipes of flammable tanks. However, the manual, electric and pneumatic control of these valves, once the tank area in the process of fire or ambient temperature over the medium ignition accident, due to the particularity of the flammable dangerous goods environment: due to the damage of the power supply system and the gas supply system at the beginning of the accident, the current commonly used electric or pneumatic valves can not be quickly closed, the operator can not close near the manual valve to implement the closure, flammable dangerous goods continuous leakage, flammable storage tank root valves and pipes can not be closed in time, resulting in further expansion of the accident disaster.This valve has a complex structure and is completely ineffective in the case of electrical or pneumatic early damage.In the face of painful lessons, a new type of fire-proof and over-temperature can be quickly and urgently shut down, and do not rely on power or pneumatic power sources.