Principle of vertical multistage centrifugal pump:

When the centrifugal impeller on the motor drives the shaft to run at high speed, the liquid filled in the centrifugal impeller under the effect of centripetal force is thrown from the centrifugal impeller management center along the flow channel between the leaves to the circumference of the centrifugal impeller. Because the liquid is subjected to the effect of the leaves, the working pressure and speed are also increased, and it is led to the centrifugal impeller of the second stage through the flow channel of the guide housing. In this way, the basic principle is repeatedly passed through all the centrifugal impeller and guide housing, and the working pressure kinetic energy of the liquid is further improved. After each centrifugal impeller is gradually added up, the pump head is obtained.

The vertical multistage centrifugal pump adopts superior hydraulic power solid model and good manufacturing process to further improve the characteristics and service life of the pump.

1, column type selection of superior hydraulic power solid model and good manufacturing and processing technology, to further improve the characteristics of the pump and service life.

2, because the pump seal is made of cemented carbide cutting tools and fluorine rubber seals, it can improve the stability of pump operation and the temperature of transported materials.

3. Part of the overcurrent of the vertical multistage centrifugal pump is welded by electric welding of the stainless steel sheet stamping die, which makes the pump suitable for slightly corrosive substances.

4, the overall compact structure, small size, light weight, low noise, environmental protection and energy saving effect, convenient maintenance.

5, the vertical multistage centrifugal pump inlet pipe and outlet are located in the pump seat at the same horizontal line, can be immediately used in the pipeline.

6, the selection of standard motor, customers can easily configure the motor according to needs.

7. Intelligent protection devices can be configured according to customer needs to carry out reasonable maintenance of pump dry rotation, phase break and load.

The causes of the vibration of the vertical multistage centrifugal pump are as follows:

1. Vibration caused by the poor centrifugal pump scheme: the stiffness of the centrifugal pump scheme is not enough, the centrifugal impeller hydropower scheme is not fully considered, the static balance of the centrifugal impeller is not strictly required, the overall planning of the bearing with the seat is not secure, and the basic plate is not strong and reliable.

2. Vibration caused by the production and manufacturing quality of vertical multistage centrifugal pump is not too high: the parallelism deviation of all rotating components in the production and manufacturing of centrifugal pump, the production and manufacturing quality of centrifugal impeller and pump shaft are not smooth and other reasons make the centrifugal pump shake.

3. Vibration caused by doubts about centrifugal pump machinery and equipment: for example, when the basic plate of TSWA multistage centrifugal pump machinery and equipment is not levelled and straightening on the ground, the pump shaft and the motor shaft have not reached the need for parallelism, the pipeline configuration is unscientific, the pipeline produces ground stress deformation, and the basic anchor bolts cannot be firmly caused by pump vibration.

4, the vibration caused by the application of vertical multistage centrifugal pump is not good in the work of the use of too high speed rotating centrifugal pump, the actual operation is not good, the sealing of the pump is not good, the operation of the pump is not tight and other conditions will lead to the vibration of the centrifugal pump.