Centrifugal pumps work by utilizing the rotation of impellers to cause centrifugal motion in water. Before starting the water pump, it is necessary to fill the pump casing and suction pipe with water, and then start the motor to drive the impeller and water to rotate at high speed. The water undergoes centrifugal motion and is thrown towards the outer edge of the impeller, flowing into the pressure water pipeline of the water pump through the flow channel of the snail shaped pump casing.
The foundation of centrifugal pumpThis structure consists of six parts: impeller, pump body, pump shaft, bearings, sealing ring, and packing box.
1. The impeller iscentrifugal pumpThe core part of the impeller has high speed and high output, and the blades on the impeller play a major role. Before assembly, the impeller needs to undergo a static balance test. The inner and outer surfaces of the impeller are required to be smooth to reduce frictional losses caused by water flow.
2. The pump body, also known as the pump casing, is the main body of the water pump. Plays a supporting and fixing role, and is connected to the bracket for installing bearings.
3. The function of the pump shaft is to connect with the motor through a coupling, transmitting the torque of the motor to the impeller, so it is the main component for transmitting mechanical energy.
4. Sliding bearings use transparent oil as a lubricant, add oil up to the oil level line. Too much oil needs to seep out along the pump shaft, and too little bearing needs toOverheating and burning caused accidents! Inwater pumpThe maximum temperature of the bearing during operation is 85 degrees, and it usually operates at around 60 degreesRight.
5. Sealing ring, also known as leak reducing ring.
6. The stuffing box is mainly composed of packing, water seal ring, packing cylinder, packing gland, and water seal pipe. The main function of the stuffing box is to seal between the pump casing and the pump shaftMaintain a gap that prevents water flow from the pump to the outside and prevents air from entering the pump at all timeswater pumpinsideThe vacuum. When the friction between the pump shaft and the packing generates heat, it is necessary to inject water into the water seal ring through the water seal pipe to cool the packing and maintain the normal operation of the water pump. Therefore, special attention should be paid to the inspection of the packing box during the operation of the water pump, and the packing should be replaced after about 600 hours of operation.