新闻中心

Basic structure of the centrifugal pump

Time: 2010-08-02 09:50:28

   Basic structure of the centrifugal pump is composed of six parts are the impeller, shaft, bearings, seal rings, stuffing box.
   
1 centrifugal impeller is a core component of its speed higher than the force, the impeller blade has played a major role in the assembly before the impeller by static test. Impeller on the inside and outside surfaces required to be smooth to reduce flow friction loss.
   
2, pump, also known as the pump casing, which is the main water pump. Play a role in supporting fixed, and with the installation of the bearing bracket connected.
   
3, pump shaft and motor function is connected by coupling, the motor torque transmission impeller, it is the transfer of mechanical energy of the main components.
   
4, the bearing is set on the support shaft in the shaft component, there are two kinds of rolling bearings and plain bearings. Rolling to use butter as lubricant oil to be appropriate is 2 / 3 3 / 4 size too much may have a fever, there are too few sound and heat! Transparent sliding bearings using oil as lubricant, fuel to the oil level line. Too much oil to pump leakage and drift along the base, little overheated bearings also burned the accident! Bearing in the pump during operation the maximum temperature of 85 degrees in the general run of 60 degrees, if we should find out the reasons high (whether impurities, oil is black, is water) and timely manner!
   
5, sealing ring, also known as leakage reduction ring. Impeller and pump casing of imports over the gap between high-pressure areas cause the pump's water flow through the gap area of low pressure affecting the pump out water, reducing efficiency! Gap is too small will cause the impeller and pump casing friction and wear. In order to increase the return to reduce the internal leakage resistance and delay of the impeller and pump casing life of the pump impeller shell edge and foreign aid junction with sealing ring, sealing the gap remained at 0.25 ~ 1.10mm hydrometer.
   
6, stuffing mainly by the packing, seal ring, filler tube, packing gland, seal tubes. The main function of stuffing is to be closed between the pump casing and shaft gap, not to pump the water does not flow out to not let outside air into the pump. Always maintain the vacuum inside the pump! When the pump and fill the water seal friction depends on the heat pipe to live on the water to seal circle to fill the cooling! To maintain the normal operation of pumps. So check the pump to run during the tour of inspection of the stuffing is the special attention! About running 600 hours on the packing should be replaced.

Water Pump
Home |About Us |Products |News |Inquiry Now |Contact Us |Download
版权 © Nningbo Sunelec Co., Ltd. 保留所有权利