Basic structure of self priming centrifugal pump

The self suction centrifugal pump is composed of six parts, namely, impeller, pump body, pump shaft, bearing, seal ring, stuffing box.
1 impeller is the core part of the self suction centrifugal pump, it has a high output power, and the blade on the impeller plays a major role. 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 is also called 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 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.
Since the basic structure of the centrifugal pump self suction centrifugal pump.
4 bearing is a component that supports the pump shaft on the pump shaft, there are two kinds of rolling bearing and sliding bearing. Rolling bearings use butter as a lubricant oil to be appropriate for 2/3 3/4 size too much may have a fever, there are too few sound and heat! 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! Bearing in the pump during operation the maximum temperature of 85 degrees in the general run of about 60 degrees, if we should find the reasons (whether there are impurities, oil is black, is water) and timely treatment!
5 sealing ring, also known as anti leakage ring. The gap between the impeller and the pump shell will cause the pump within the high pressure zone of the water flow through the gap area of low pressure water, affecting the pump efficiency! The gap is too small will cause the impeller and the pump shell friction and wear. In order to increase the return to reduce the internal leakage resistance and service life of the delay of the impeller and pump casing, junction with sealing ring in the pump casing and impeller aid, sealing gap should be between 0.25 ~ 1.10mm.
6 stuffing mainly by the 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 maintain the vacuum 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 pumps. Therefore, the operation of the pump in the process of inspection of the stuffing box is to pay attention to the special attention.