EN RU
Home  >>  News

Reasons For The Decline In Efficiency Of Multistage Centrifugal Pumps

Released on Aug. 30, 2018

Why is the efficiency of the horizontal multistage centrifugal pump drop Horizontal Multistage Water Pump Supplier?  will explain it to you.

1. Adding drugs or water quality before the pump, causing serious fouling or corrosion inside the pump casing. The serious fouling in the pump casing can increase the wall thickness of the pump casing by about 2 ram, and the scale of the inner wall of the horizontal multistage centrifugal pump forms scale, which reduces the volume of the pump body, reduces the pumping volume, and the flow path is rough, and the head loss increases. Both efficiency and hydraulic efficiency are reduced.

2. The scouring of the water flow, the inner wall of the horizontal multistage centrifugal pump and the impeller surface become rough and uneven, the friction coefficient of the inner flow passage of the horizontal multistage centrifugal pump increases, and the flow rate of the water in the pump is very high. Large, the head loss increases, and the hydraulic efficiency decreases.

3. Cavitation on the surface of the impeller. Since the negative pressure is generated when the blade is running on the water surface, when the pressure Pk is generated, after the steam pocket and the honeycomb surface are generated, the pump blade is cavitation under the action of electrochemical corrosion.

4. The casting defects, cavitation, abrasion, corrosion and chemical etching caused by the processing process of the horizontal Multi-stage Centrifugal Pump cause voids or cracks in the pump flow channel, and vortex is generated when the water flows, resulting in energy loss and reduced hydraulic efficiency.

5. Volume loss and mechanical loss. Due to the long pump life, mechanical wear causes leakage and increased resistance, resulting in reduced volumetric efficiency and mechanical efficiency.

Reasons For The Decline In Efficiency Of Multistage Centrifugal Pumps

Boye Dinghe Road Urban Sector,Baoding,Hebei 071300, China
+86 312 8306 113
hbtdby@aliyun.com
+86 312 8327 015
Follow Us

Copyright © Hebei Tongda Pump Co., Ltd. All Rights Reserved Sitemap