High Temperature Resistant Centrifugal Pump Installer
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Cause diagnosis of insufficient flow of acid-resistant centrifugal pump

2023/07/04

The acid-resistant centrifugal pump is a device that uses the centrifugal force formed by the high-speed impeller to transport liquids. It has a simple structure, uniform flow, can be processed with corrosion-resistant materials, and is easy to adjust and control. The output pressure head is not high, but it has a large flow rate. The maintenance cost is low, accounting for about 80% of the chemical pump. In the process of acid-proof centrifugal pump operation, it is inevitable to produce a variety of problems. Insufficient flow is a common problem, so the root cause of insufficient flow of centrifugal pump and the way to deal with it:

1. The suction valve or impeller is blocked. The disposal method is to detect whether there is a foreign body in the suction valve and impeller and clean it up in time.

2. The inhalation height is too high. The way to deal with it is to reduce the suction height.

3. There are too many elbows and too much resistance. The way of disposal is to remove unnecessary elbows and reduce fluid flow resistance.



4. Air leakage from pump body or suction pipe. The method of treatment is to tighten the bolts of the pump body or suction pipe flange, asbestos gasket or sealing ring can be added between the pump body and the suction flange, and the bolt can be tightened until there is no air leakage.

5. The wear of the sealing ring is too large. The solution is to replace the sealing ring.

6. impeller corrosion and wear. The impeller should be replaced. The impellers corroded by the medium and the impellers in operation, especially those made of cast iron, may have defects such as pores or slag inclusion, which are uneven and locally worn, which are easy to destroy the balance of the rotor. so that acid-resistant centrifugal pump vibration or insufficient water supply, so it is necessary to replace the impeller.




   

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