SUMMARY OF TRIAL RUN OF SEAL WATER PUMP OF HIGH-PRESSURE AMMONIA PUMP WITH DOMESTIC COMPONENTS
The reasons for the faults of the sealing water pump of the high-pressure ammonia pump of the urea plant during the test run,such as large pump vibration,easy vaporization after maintenance and inability to self-start in time,were analyzed.Through measures such as dynamic balance treatment of the impeller,removal of the exhaust head of the first-stage impeller and addition of exhaust short connections,addition of self-start interlock at the outlet of the sealing water pump,and grinding of the leaky check valve,the equipment problems were eliminated,ensuring the safe and stable operation of the plant equipment.
high-pressure ammonia pumpseal water pumpdynamic balanceexhaust valveinterlock