Detailed explanation of the maintenance method of horizontal multi-stage pump

Category: Water pump knowledge

2024-05-22

Multistage centrifugal pump is a common industrial pump, widely used in chemical, petroleum, electric power, metallurgy and other industries. It is characterized by large flow, high head, high efficiency and long service life. However, due to the poor working environment of the multi-stage centrifugal pump, various faults and problems may occur after long-term use, which need to be overhauled and maintained.

1. horizontal multi-stage pump common maintenance methods

1. Pump body leakage maintenance method: replace the sealing ring or gasket, can reduce the gap between the pump body and the axis, to achieve the sealing effect.

2. Bearing overheating maintenance method: for poor lubrication, to strengthen lubrication, timely supplement of lubricating oil, the need to replace the bearing has been damaged.

3. Repair method of pump shaft deviation: You need to reinstall the bearing or replace the worn bearing, and you also need to pay attention to the size of the bearing hole that matches the bearing.

4. Pump vibration maintenance method: remove the debris in the inlet pipe, ensure the inlet water flow is sufficient, or readjust the inlet pipe position.

Common Faults and Causes of 2. Horizontal Multistage Pump

1. Pump body leakage: The main reason is that the sealing ring is not tight due to aging or wear.

2. Bearing overheating: The main reason is that the bearing is not lubricated in time or the friction is too large due to poor lubrication.

3. Pump shaft deviation: The main reason is that the bearing clearance is too large due to incorrect bearing installation or bearing damage.

4. Pump vibration: The main reason is that the inlet pipe is blocked or the inlet water flow is too small, resulting in pressure fluctuations in the pump body.

3. maintenance measures

1. Regularly add lubricating oil to ensure the normal lubrication of the bearing.

2. Pay attention to remove the debris and sediment in the pump body to prevent it from being brought into the pump body and damaging the pump wheel.

3. Regularly check the pump body sealing ring and sealing gasket, if found aging or wear should be replaced in time.

4. Regularly clean and maintain the pump body and lubricate the bearing regularly.

Maintenance of 4. Multistage Centrifugal Pump

First of all, the maintenance of multistage centrifugal pump needs to do the following preparatory work. First of all, it is necessary to cut off the inlet and outlet pipes and power supply of the pump to avoid safety accidents caused by misoperation. Secondly, the internal medium of the pump needs to be emptied for overhaul and maintenance. Finally, it is necessary to prepare the required tools and spare parts, such as wrenches, screwdrivers, seals, etc., in order to replace and repair the pump components.

Secondly, the maintenance steps of multi-stage centrifugal pump mainly include the following aspects. First of all, it is necessary to remove the inlet and outlet flanges and pump covers of the pump, and remove the internal parts of the pump one by one. Secondly, it is necessary to clean and inspect the internal parts of the pump, including the impeller, bearings, seals, etc. If parts are found to be damaged or worn, they need to be replaced or repaired in time. Finally, it is necessary to reassemble the internal parts of the pump, and carry out trial operation and adjustment to ensure the normal operation and service life of the pump.

In addition to the regular maintenance steps, multi-stage centrifugal pumps may also have some common faults and problems, which need to be dealt with accordingly. For example, the bearings of the pump may be worn or loose, causing excessive vibration and noise of the pump. At this time, the bearings need to be replaced or repaired. As another example, the seal of the pump may be aged or worn, resulting in leakage or air leakage of the pump. At this time, the seal needs to be replaced or repaired. In short, for different faults and problems, different treatment methods need to be adopted to ensure the normal operation and service life of the pump.

Repairing a horizontal multi-stage pump requires professional knowledge and technology. If you have no experience and technology and cannot repair it, please contact professional maintenance personnel to avoid greater losses and safety hazards.

Multi-stage centrifugal pump is a kind of pump widely used in industrial field, which is characterized by large flow, high head, high efficiency and long service life. After long-term use, various faults and problems may occur, requiring overhaul and maintenance. In the maintenance of multi-stage centrifugal pump, it is necessary to make preparations, follow the maintenance steps, and deal with common faults and problems in time to ensure the normal operation and service life of the pump.

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