Principle of vertical multistage centrifugal pump:
When the centrifugal impeller on the motor pushes the shaft to run at high speed, the liquid filled in the centrifugal impeller is dumped around the centrifugal impeller from the centrifugal impeller management center along the passage between the leaves under the centripetal force. Because the liquid is subject to the effect of the leaves, the working pressure and speed are increased in addition. Through the passage of the guide shell, it is led to the next stage centrifugal impeller, On this basis, the working pressure kinetic energy of liquid can be further improved by passing through all centrifugal impeller and guide shell for many times. After each centrifugal impeller is accumulated gradually, a certain pump head is obtained.
The vertical multistage centrifugal pump adopts superior hydroelectric power entity model and good manufacturing and processing technology, which further improves the characteristics and service life of the pump.
1. The column type adopts superior hydro power entity model and good manufacturing and processing technology to further improve the characteristics and service life of the pump.
2. Because the raw material of the pump seal is cemented carbide cutter and fluorine glue machine seal, the stability of pump operation and the temperature of the transport material can be improved.
3. The over current part of vertical multistage centrifugal pump is welded by welding stainless steel sheet stamping die, which makes the pump suitable for slight corrosion.
4. The overall structure is compact, small in size, light in weight, low in noise, remarkable in environmental protection and energy saving, and convenient for maintenance.
5. The inlet and outlet of vertical multistage centrifugal pump are located on the same horizontal line of pump seat, which can be used in the pipeline immediately.
6. Select the standard motor, the customer can easily configure the motor according to the must.
7. According to the customer must be equipped with intelligent protection device, the pump dry rotation, phase break, load and other reasonable maintenance.
The vibration causes of vertical multistage centrifugal pump are as follows:
1. Vibration caused by poor centrifugal pump scheme: the rigidity of centrifugal pump scheme is not complete, the hydraulic power generation scheme of centrifugal impeller is not fully considered, the static balance of centrifugal impeller is not strictly required, the overall planning of bearing with seat is not safe, and the basic plate can not be strong and reliable, etc. are the reasons for the pump vibration.
2. Vibration caused by the low quality of production of vertical multistage centrifugal pump: the deviation of parallelism of all rotating components in the production and manufacture of centrifugal pump, the uneven production quality of centrifugal impeller and pump shaft make the centrifugal pump vibrate.
3. Vibration caused by confusion of centrifugal pump equipment: for example, when TSWA multi-stage centrifugal pump equipment, the basic plate is not leveled and aligned, the pump shaft and motor shaft do not reach the parallelism, the pipeline configuration is not scientific, the pipeline produces ground stress deformation, and the basic anchor bolts are not firm, etc. which lead to the vibration of the pump.
4. The vibration caused by the improper operation of vertical multistage centrifugal pump is adopted. The centrifugal pump with excessive high speed rotation is selected, the actual operation is not good, the small total flow is working, the sealing of the pump is not good, and the pump operation status inquiry is not tight, etc. all will lead to the vibration of the centrifugal pump.
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