Heating furnace interlock issues
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Dear teachers, do you have any interlock data regarding the main burner and the pilot light cut-off valves of the heating furnace? There is also a question regarding whether a normally burning lamp can be extinguished I checked a fire safety standard, and it recommended using a constant light
The specific values should be indicated and explained in the drawings provided by the design unit. Since it’s called an ever-burning lamp, what would be a good name if you turned it off?
Because I found that for the perpetual flame, the value is 0.03 for the main burner interlock and 0.01 – is this value normal?
The pilot light serves a protective purpose: if the main burner goes out but fuel gas continues to flow in, the pilot light can burn up that fuel gas, preventing it from accumulating on top of the furnace and causing an explosion. It does not matter if the two pressure interlock values differ; the main purpose is to prevent tempering. I don’t know much either; you can refer to this and then verify it with others.
Everything should be understood based on principles; once the principles are understood, the problem ceases to be a problem. Remember to doubt the establishment of certain facilities until you have mastered the principles. There is no \"constant flame\"; once a valve leaks, combustible gases accumulate to a certain concentration, which can cause injury, and in the presence of an open flame, an explosion can occur. For reference.
This is normal; it’s not necessarily the case that one pressure has to be higher or that the main burner’s pressure must exceed that of the pilot light. This is determined by the design, and generally it cannot be changed
Main burner: 0.03; pilot light: 0.02. The pilot light staying lit allows production to be resumed quickly in the event of a shutdown of the main burner
The constant light should remain burning; this interlock value is normal.
Main burner: 0.05, Constant flame burner: 0.15
The main burner operates at 0.1 MPa, while the pilot light operates at 0.02 MPa. The pilot light must not go out when the main burner is running – it’s a matter of safety!