2016年11月3日星期四

Basic structure of centrifugal pump

The basic structure of the centrifugal pump is composed of eight parts, namely: impeller, pump, pump cover, retaining ring, pump shaft, bearings, seal ring, stuffing box, axial force balance device.
1, the impeller is the center of the centrifugal pump some of its high-speed output power.
2, the pump body, also known as pump shell, which is the main pump. To support the fixed effect, and with the device bearing bracket connected.
3, the effect of the shaft is connected by the coupling and the motor, the motor torque to the impeller, so it is the primary component of mechanical energy transfer
4, sealing ring, also known as leakage ring.
5, mainly by packing stuffing, not to pump the water flow to the outside to not let the outside air into the pump. Always keep the vacuum inside the pump! When the pump shaft and the filler conflict heat will depend on the water sealing tube to fill the water seal ring to fill the cooling!
6, the axial force balance device, in the centrifugal pump operation, because the liquid is in the low pressure into the impeller, and under high pressure out, so that the pressure on both sides of the impeller impingement, the direction of the thrust of the direction of axial thrust, will Causing the rotor to seize the axial movement, the occurrence of wear and oscillation, which should be set to axial thrust bearings, in order to balance the axial force.

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