Deaeration water pump

1. If the deaeration water pump stops operating, it will cause the liquid level in the scrubber tower to continue dropping; failure to address this promptly can lead to the cooling water pump running out of fluid. 2. The auxiliary quench water pump should be installed at the outlet of the scrubber tower and the quench water pump; if the quench water pump is not stopped, the process gas is washed with shift condensate, and it is recommended to feed this water into the scrubber tower to control its liquid level. Increase the amount of high-temperature shift condensate appropriately depending on the amount of shift condensate. 3. The deaerator should have its make-up water volume reduced appropriately, along with the amount of steam supplied ； 4. Fix the faults of the deaeration water pump promptly and put it into operation, making appropriate adjustments to the process ； 5. As for the deaeration water pump and the auxiliary cooling water pump, there is little need for communication between them; manual operation is sufficient. However, when the amount of water used for cooling drops to a certain level, the emergency make-up water valve should be opened to supply water directly to the cooling loop ； At the same time, the make-up water valve on the upper tower of the scrubber should be reduced to a certain opening degree, while the make-up water valve on the lower tower should be fully closed, in order to prevent the deaeration water pump from experiencing overcurrent.

During normal operation, if the deaerated water supply is interrupted (the standby pump cannot start automatically), the interlock should be disabled to manually start the standby pump; if that does not work, an emergency shutdown must be initiated.