Why does it switch to automatic mode when the water supply pressure is low?
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Our plant has 7 30MW boilers with a header system; the feedwater pressure is low. Why should the feedwater automation be disabled?
The feed water pressure is low, there is a lot of interference, and the automatic feed water control is unstable; therefore it has been switched to manual mode
When the water supply pressure is low, the opening degree of the control valve is already quite high, and it has moved outside the optimal automatic adjustment range. It is recommended to investigate the cause of the low water supply pressure; it is likely that there is a problem with the water pump itself
Automatic water supply control is carried out based on factors such as water level and steam flow; it doesn’t seem to take inlet water pressure into account for protection purposes, right? Is there something wrong with this programming?