Solution to SIS interlock problems, burner cooling water interlock problems
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This post was last edited by 18663069001 on 2018-7-27 19:58: Solving SIS interlock issues and burner cooling water interlock problems! ! ! The signals available are (1) burner cooling water outlet temperature HH, (2) burner cooling water inlet flow rate LL, (3) burner cooling water outlet flow rate HH, and (4) burner cooling water inlet pressure HH; 2 out of these 4 signals are selected for interlocking purposes.
What about your question? If there’s anything you don’t understand, explain it clearly
This interlock is a bit strange; generally speaking, it should be a shutdown protection interlock for the burner cooling water. When the temperatures and flow rates ahead reach the specified conditions, the system should shut down, and the inlet and outlet valves for the burner cooling water should be closed as part of this interlock. The other feature is a manual/automatic switch; the interlock mentioned above only works in automatic mode. When switched to manual mode, the inlet and outlet valves are controlled manually. However, there is a condition for operating in manual mode: the liquid level in the cooling water tank must not be too low. What puzzles me is that when the flow rate is low or the temperature is high, shouldn’t water be added? Why then are the cooling water inlet and outlet valves closed? . Won’t this risk damaging the burner?
I haven’t figured it out yet; once I do, I’ll send a complete analysis
It’s clearly a nozzle from a vaporization furnace; you should pay close attention to the operational procedures. The purpose of this interlock mechanism is to protect the burner – once the set value for this interlock is reached, the burner loses its supply of water and gas, thereby stopping its operation, and this prevents damage to the burner’s coils and leaks. It’s not enough to just look at the logic diagrams; one also needs to understand the underlying processes