Product Brief Description
FHQ anti-flashback device is a safety device installed on the pipeline of the suction side and exhaust end of the gas extraction pump. It is suitable for gas output piping systems, and is generally installed close to the pump room and users. In the event of an accidental explosion accident in the gas extraction system, it plays a role in protecting the safety of the surface and underground pumping system, equipment and users, and is a necessary safety equipment for the gas extraction system.
The FHQ anti-flashback device has a fusiform structure, and 6 or 3 layers of brass mesh are installed in the middle, and the specifications and installation spacing of the brass mesh have strict requirements. It uses the heat dissipation effect of copper wire mesh and the wall effect to make the propagation speed of the flame in the pipeline decrease with the decrease of the pipe diameter, so as to isolate or hinder the further propagation of the flame.
Article 5.5.5 of the Code for Coal Mine Gas Extraction (AQ1027-2006) stipulates that the pipeline near the station building shall be equipped with a water drain and explosion-proof, anti-tempering and anti-backwater devices, and a …… of venting pipes and pressure, flow and concentration measurement devices; Article 5.5.9 stipulates that the suction side pipeline system of the dry gas extraction pump must be equipped with safety devices against backfire, gas return and explosion.
