The working principle of centrifugal pump and structure

a centrifugal pump, 离心泵) On centrifugal force generated by the impeller rotates to transport liquid pump. Foreign names: Chinese name: Centrifugal pump Centrifugal pump Chinese pinyin: li xin beng related industries: machinery manufacturing material: cast iron. Stainless steel plastic FRP. Alloy centrifugal pump: the working principle of the centrifugal pump is the use of a centrifugal impeller rotation and make the water has come to work. before the start, it is necessary to make the pump casing and suction tube filled with water, and then start the motor, make and water pump shaft to drive the impeller for high speed rotation, water centrifugal motion, be left to the impeller outer edge and the volute pump shell of the water flow into the pump pressure. Centrifugal pump model parameters and structure: the basic construction of centrifugal pump is composed of six parts, respectively, impeller, pump body, pump shaft, bearing, seal ring, stuffing box.

1, is the core part of a centrifugal pump impeller, strength higher than that of its speed, on the impeller blades and play a major role, the impeller through static balancing experiments before assembly. Impeller on the inside and outside for smooth surface to reduce friction loss of water. 2, the pump body also calls the pump shell, it is the body of the pump. Support fixed effect, and connected to install bearing bracket. 3, the role of pump shaft is connected by coupling and motor, the torque of the motor to the impeller, so it is a major part of the mechanical energy transfer. 4, sliding bearing is using a transparent oil as lubricant, fuel oil level to the line. Too much oil to the pump shaft seepage, too little bearing overheating and burn out cause an accident! Bearing in the process of pump working in 85 degrees, the highest temperature is generally run around 60 degrees Fahrenheit. 5, sealing ring, also known as minus leakage ring. 6, stuffing box is mainly composed of filler, seal ring, filler tube, packing gland, water tubes. The role of the stuffing box is mainly in order to close the gap between water pump casing and pump shaft, don't let the water pump in the flow outside to not let outside air into the pump. Always keeping the vacuum inside the pump! When the pump shaft and be about to rely on water seal packing friction heat to hold water to the water seal circle packing cooling! Keep the pump running. So in the process of pump run Tours of inspection to check the stuffing box is paying special attention to! Running about 600 hours will be carried out on the packing replacement. Product analysis basic structure about the basic structure of the centrifugal pump is composed of eight parts, respectively is: impeller, pump body, pump cover, hydrosphere, pump shaft, bearing, seal ring, stuffing box, the axial force balance device. 1, is the core part of a centrifugal pump impeller, its output power high speed. 2, the pump body also calls the pump shell, it is the body of the pump. Support fixed effect, and connected to install bearing bracket. 3, the role of pump shaft is connected by coupling and motor, the torque of the motor to the impeller, so it is a major part of the mechanical energy transfer 4, sealing ring, also known as minus leakage ring. 5, stuffing box is mainly composed of packing, don't let the flow within the pump outside also not let outside air into the pump. Always keeping the vacuum inside the pump! When the pump shaft and be about to rely on water seal packing friction heat pipe water injection to the water seal circle packing cooling! 6, the axial force balance device, in the process of centrifugal pump operation, because the liquid is in low pressure into the impeller, and under the high pressure flow, the impeller pressure on both sides, the pointing in the direction the entrance of the axial thrust, will cause the rotor axial channeling, wear and vibration of the axial thrust bearing, and therefore should be set in order to balance the axial force.

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