The basic structure of drainage centrifugal pump is composed of 6 parts

Time:2023.05.25Browse:

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1. The impeller is the core part of the centrifugal pump. Its speed is high, and the blades on the impeller play a main role. The impeller should pass a quiet balance experiment before assembly. The inner and outer surface on the impeller is smooth to reduce the friction loss of water flow.


2. The pump body is also called the pump shell, which is the main body of the pump. It plays a supporting role and connects to the bracket of the bearing.

3. The role of the pump shaft is to connect to the connection with the motor and the motor to pass the rotation of the motor to the impeller, so it is the main component to convey the mechanical energy.


4. Bearing is a component that supports the pump axis on the pump shaft. There are two types: rolling bearings and sliding bearings. Rolling bearing is used as a lubricant as a lubricant. It is appropriately that the volume of 2/3 to 3/4 is too much. Sliding bearing uses transparent oil as a lubricant, refueling to the oil level.


Too much oil should be exuded along the pump axis and drifted cheap. The temperature of the bearing in the process of the pump is up to 60 degrees at 85 degrees. If it is high, find the cause (whether there is impurities, whether the oil is black, and whether it is water) and deal with it in time!


5. The sealing ring is also called a leak reduction ring. The gap between the impeller imports and the pump shell causes the water in the high pressure area in the pump to flow to the low -pressure area through the gap, affecting the amount of water out of the pump, and the efficiency is reduced! If the gap is too small, the friction of the impeller and the pump shell will cause wear.


In order to increase the rebound resistance and reduce the internal leakage, delay the life of the impeller and the pump shell, a sealing ring is installed at the inner edge of the pump case and the combination of the impeller foreign aid, and the gap between the seal is suitable for 0.25 and 1.10mm.


6. The filler letter consists of fillers, water sealing, fillers, fillers, and water sealing pipes. The role of the filling letter is mainly to close the gap between the pump shell and the pump axis, so that the water flow inside the pump does not flow outside and the outside air does not allow the outside air to enter the pump.


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