Regarding the interlock issues of the superheater
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The superheater in our plant is a negative-pressure furnace, and it is equipped with a differential pressure interlock for the atomized steam and fuel oil. Why does switching the burner cause an interlock to activate in the superheater when attempting to ignite it? Is it because when the fuel oil fills the burner, there is a sudden drop in negative pressure, and after the fuel oil fills the burner, the top of the burner causes the fuel oil to rebound, which in turn leads to a sudden increase in pressure inside the furnace? If that’s the case, the pressure change caused by a single burner would be too large, wouldn’t it? Don’t understand……
Is it because when the fuel oil fills the burner, there is a sudden drop in negative pressure, and after the fuel oil fills the burner, the top of the burner causes the fuel oil to rebound, which in turn leads to a sudden increase in pressure inside the furnace? If that’s the case, the pressure change caused by a single burner would be too large, wouldn’t it? Don’t understand……
This post was last edited by dongjiang1001 on 2011-8-13 15:27. Doesn’t a fuel furnace have a rotating drum? It’s probably not because the burner isn’t turned off.
This post was last edited by dongjiang1001 on 2011-8-13 at 15:27. Reply to 3# xyc114: I don’t understand; I also don’t think there is such a thing. However, an experienced technician explained it to me this way. But it’s certain that the pressure changes caused by the fuel oil filter are significant. The spinning drum you mentioned is probably related to some principle involved in this process.