1. Impeller is the core part of the centrifugal pump, it has high speed and high output force, the impeller on the blade and play a major role in the assembly before the impeller through the static balance test. The inner and outer surfaces of the impeller are required to be smooth, so as to reduce the friction loss of the flow.
2. Pump body, also known as pump shell, which is the main body of the pump. To play a supporting role, and with the installation of the bearing bracket.
3. The role of the pump shaft is connected with the motor through the coupling, the motor will be transferred to the impeller, so it is the main component of the transfer of mechanical energy.
4. Bearing is set on the pump shaft to support the pump shaft components, there are two kinds of rolling bearings and sliding bearings. Rolling bearings using butter as a lubricant to the appropriate general 2/3 ~ 3/4 of the volume will be too much heat, too little sound and fever! Sliding bearing is used for transparent lubricant oil, fuel to the oil level line. Too much oil to be leaking along the shaft and low drift, too little overheated bearings burned to the accident! In the process of running the pumps the temperature of the bearing is highest in 85 DEG C runs on about 60 degrees, if high to find out the reasons (whether there are impurities, oil is black, is water) and timely treatment.
5. Sealing ring, also known as the reduction of leakage ring. The gap between the impeller and the pump shell over the general assembly caused by pump high-pressure water flow through the gap area of low pressure affecting the pump out the water, reducing efficiency. Clearance is too small will cause the impeller and pump shell friction wear. In order to increase the flow resistance reducing internal leakage and delay the service life of the impeller and the pump shell and the impeller in the pump shell edge and foreign aid junction with sealing ring, sealing the gap remains between 0.25 ~ 1.10mm is appropriate.
6. Mainly by the stuffing box packing, seal ring, tube filler, filler cap, seal tubes. Stuffing function is mainly to close the gap between the pump shell and pump shaft, so that the pump does not flow inside the pump to the outside and do not let the outside air into the pump. Always keep the vacuum inside the pump! When the pump shaft and the packing heat generated by the friction depends on the water living water to fill the cooling water sealed circle! To maintain the normal operation of the pump. So in the operation of the pump inspection process on the stuffing box inspection is to pay special attention to! After running about 600 hours to replace the filler.
