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Do you know the reason why the operation efficiency of hot water submersible pump decreases

Release time:

2023-06-28 15:51

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Reasons for the decrease of operation efficiency of hot water submersible pump

It is inevitable that the operating efficiency of the submersible hot water pump will decline after a long time of use. What we can do is to find out the causes of this phenomenon and avoid the occurrence of these problems in the use process, so as to prolong the service time of the pump and improve the efficiency of the product as much as possible

1. Due to the erosion of water flow, the inner wall of the channel and the impeller surface become rough and uneven, and the friction coefficient of the channel in the pump increases. In addition, the flow velocity of water in the pump is very large, and the head loss increases. The hydraulic efficiency is reduced.

2. Due to adding medicine or water quality in front of the pump, serious scaling or corrosion occurred in the pump shell. The serious scaling in the pump shell can increase the thickness of the pump shell by about 2 ram, and the scale on the inner wall of the hot water submersible pump can reduce the pump volume, reduce the pumping capacity, and rough the flow channel, and increase the head loss. Both the passenger volume efficiency and the hydraulic efficiency are reduced.

3. Due to the defects, cavitation, abrasion, corrosion and chemical erosion of the diaphragm pump caused by processing technology, cavities or cracks are produced in the flow channel of the pump, and vortices are generated when the water flows, resulting in energy loss. The hydraulic efficiency is reduced.

4. Cavitation on impeller surface. When the pressure pkpk is less than or equal to PVA, the cavitation of the pump blade will occur under the action of electrochemical corrosion.

5. Volume loss and mechanical loss. Due to the long service time of the pump, the leakage caused by mechanical wear and the increase of resistance make the volumetric efficiency and mechanical efficiency decrease.

The hot water submersible pump should be observed regularly when it is running, so as to discover these faults as soon as possible and deal with them in time. Early treatment will not cause too much loss to the company.

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