Supply Wujin heat pump plant boiler heat pump centrifugal heat pump air-cooled heat pumps

Use and maintenance of the main points of a conducting oil pump, conducting oil pump Caution: (1) After installation, manually rotate the coupling to check for grazing phenomenon. (2) prevent debris into the pump, pump inlet filter set, filter area of ??more than 3 to 4 times the cross-sectional area of ??the pipe. (3) non-air operation. (4) high lift pump should be installed in the discharge line check valve to prevent the sudden shutdown of the water hammer damage. (5) pump procedure: before driving to open the inlet valve, the liquid to be delivered will be filled with the pump; close the outlet valve; Jog electric hoisting machine, check HTF pump rotation is correct; the pump starts, the outlet valve should be opened slowly , until the pump reaches the normal operating state, and then to the desired degree of opening of the outlet valve. Commissioning 5 ~ 10min, without exception, can be put into operation. Parking program: Close the outlet valve; cut off the power; close the inlet, long-term shutdown without cleaning the pump flow path and power off. Second, the maintenance elements and methods: (1) shaft break. Materials WRY conducting oil pump shaft is used in 99% of the cast iron type, shaft broken main reason is because the pump air operation, the bearing and the shaft is broken, dry grinding. Can see the open pump Check the main bearings are worn to prevent a serious way broken pump is to avoid empty running of the pump. (2) bearing damage. Material WRY conducting oil pump bearings used in high density carbon, in case the pump without water or impurities in the pump, it will cause damage to the bearings. Coaxial cylindrical coupling between the inner and outer magnetic rotor can not be guaranteed if requested, will directly affect the bearing life.