The pipe end arrester, also known as the pipe arrester or flame preventer, is a safety device installed in the pipe system (especially the end of the exhaust pipe) to prevent external flames from entering the equipment or pipes containing flammable and explosive gases, or to prevent the flame from spreading between the equipment and pipes.
The end flame arrester is a safety device which can quench the active center of the flame by reducing the diameter of the pipe or the flow gap, and prevent the flame from continuing to spread by using the wall effect and temperature effect.
Function: Prevent flammable and explosive gas burning or explosion in the pipeline, the flame spread to other areas, reduce the loss of fire accidents.
Classification by installation position: the pipe end arrester is mainly installed at the end of the exhaust pipe, which is distinguished from the pipe arrester (installed in the middle of the pipe).
According to the speed of preventing flame classification: the deflagration arrester can prevent the subsonic transmission of the explosion flame through; Explosion-proof flame arresters prevent the passage of supersonic flames.
The working principle of the tube end flame arrester is mainly based on the following aspects:
Wall effect: there are many small channels or gaps inside the flame arrester, when the flame passes through these channels, it will be divided into many small flame flow,fire arrestor due to the heat dissipation of the channel wall, the flame temperature is rapidly reduced, so as to achieve the purpose of fire resistance.
Temperature effect: the flame needs to maintain a certain temperature in the transmission process to continue burning, and the material inside the flame arrester can absorb the heat of the flame, so that the flame temperature is reduced to below the combustible point, thereby extinguishing the flame.
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