The basic principle and maintenance of vertical multistage centrifugal pump. When the vertical multistage centrifugal pump motor promotes the high speed operation of the suction centrifugal impeller on the shaft, the liquid covered in the suction centrifugal impeller is thrown around the centrifugal impeller from the management of the suction centrifugal impeller along the over current channel between the blades under the cohesive force. Because of the action of the blade, the liquid is affected by the blade, The pressure and speed are also increased, and the centrifugal impeller is pulled to the next stage after passing the channel of the guide shell. In this way, the pressure and machinery of the liquid can be further improved by crossing all the suction centrifugal impeller and guide shell several times. Control the leakage, power loss, load and over temperature of the pump to ensure the reliability of the vertical centrifugal pump. The double guide automatic coupling redo system makes the installation and maintenance of the pump convenient and quick, and people can not enter and exit the sewage pit. Cable float switch can be changed according to the necessary water level line. The pump of automatic control system stops and starts without the care of staff. Ensure that the motor is running but loaded within the range of using pump power. Vertical centrifugal pump is a circulating chemical (acetylene gas and liquid, and can also be a chemical substance for suspended fine particles and acetylene gas or liquid) from the rotating shaft root (inlet) of the blade. The chemical substances rely on high speed rotating blades to obtain cohesion, which leads to a high pressure and discharged from the pressure relief port (import and export) chemical material conveying equipment and equipment. Vertical centrifugal pump is to combine more than two pumps with the same effect. The liquid safety channel structure is shown in the connection between the first-class chemical material pressure relief port and the second stage inlet, and the secondary chemical pressure relief port is connected with the third level inlet. The connected mechanism causes the vertical centrifugal pump.

Product characteristics of vertical multistage centrifugal pump:

1. The digital model and production process of hydropower station are adopted to further improve the characteristics and service life of vertical centrifugal pump.

2. Because the sealing property of centrifugal pump is made of carbide cutter numerical control blade and mechanical seal of fluororubber, the efficiency of pump operation and the temperature of chemical materials can be increased.

3. The over current of vertical centrifugal pump is made by arc welding of stainless steel plate metal mould, which can promote the pump to be used for mild corrosion chemicals.

4. The whole structure is compact, the body is small, the net weight is relatively light, the noise is low, the environmental protection and energy saving effect is obvious, and the maintenance is convenient and quick.

5. The water inlet and outlet of vertical multistage centrifugal pump are in the same line as the pump base, and can be used in the pipeline immediately.

6. With standard motor, customers can easily and quickly equip the motor according to the requirements.

7. The vertical multistage centrifugal pump can be effectively maintained for dry rotation, phase break and load according to the intelligent system protection equipment provided by customers.