Is it necessary to install a flame arrester on the fuel pipeline before it enters the furnace?
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This post was last edited by flute6 on 2010-9-16 00:24. Is it necessary to install flame arresters on the fuel pipelines before they enter the furnace? Do flame arresters get clogged easily?
A flame arrester is necessary; regular cleaning will prevent it from getting clogged
Since we mainly act as agents for imported flame arrestors, in a situation like yours it’s best to use a flame arrester. However, the gas may contain small solid particles; since our flame arrestors are quite small, around 1 inch in size, they can easily get clogged. It’s best to install a filter in front of them. If the diameter of the pipeline is large, then the flame arrestor can be cleaned regularly.
Personal opinion: Fire arrestors must definitely be added, because if backflow occurs at the burner, the damage caused will be even greater!
If it’s gas, I don’t think it’s necessary; a higher-level interlock system can be used. The pressure of gas is much higher than that in the furnace, so backflow basically won’t occur. Of course, a differential pressure interlock can be installed; when the differential pressure is low, the gas valve can be closed. Generally, gas valves are equipped with double-check valves. Of course, for safety reasons, the pressure difference value for interlocking can be set at a higher level
Our situation is the same as what was mentioned upstairs: there is a low pressure interlock
It is likely not necessary to install a flame arrester; generally, a on/off valve controlled by a solenoid valve is used to prevent the gas pressure from becoming too high or too low.
The typical layout of the fuel gas pipeline before entering the furnace consists of a KV valve (controlled from the control room), a flow control valve (interlocked with the furnace temperature), and a flame arrester