The high-pressure ash water pump is also known as the deaeration water pump
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For the high-pressure ash water pump, which is also the deaeration water pump, should all the return valves be opened first when starting the pump, and then the pump is started; after it starts, the outlet valve is opened while the return valves are closed.
Do not turn on the reflux valve when starting the pump to prevent current overload; open the reflux control valve after the pump has started to adjust its pressure, observe its operation, and then open the outlet valve once everything is working properly.
No! At startup, all outlet manual valves are closed, and the backflow control valve is opened to about 5%; once the backflow control valve is in place, it is fully opened. When the pump is started, the on-site staff reports the pump’s outlet pressure to the control room, which then adjusts the opening degree of the control valve based on this pressure. If this pump water needs to be discharged, first slowly open the pump’s outlet valve, while monitoring the pressure at the pump’s outlet as well as the current. Adjust the feedback control valve based on these values, so that the outlet pressure and current of the slurry pump remain constant and any fluctuations in these parameters are reduced. Simply open the manual outlet valve while closing the feedback control valve