we provide advice of submersible pump installation,submersible pump working,submersible pump troubleshooting,submersible pump stopped and other pump technology articles.
High pressure boiler feed water pump is medium flow, high lift, high power centrifugal pump, in order to improve the efficiency of the pump, should choose a multi-stage centrifugal pump, and choose a high speed. Impeller series, each impeller head is reduced, the specific speed increase, can improve the pump efficiency; but the series increased, bearing spacing increased, rotor stiffness decreased, should pay attention to prevent interstage ring wear or killed by danger, the pump should be promptly maintenance requirements. For example, the British Electricity Authority (CEGB) is proposed to complete the boiler feed pump in the 8h core replacement. In order to achieve this purpose, a single shell horizontal split multi-stage pump, or double shell cylinder type multi-stage pump, the pump body with a horizontal split than the use of more convenient maintenance section.