Multi-runner guide vane type middle-opening multi-stage centrifugal pump

Abstract

The invention relates to a multi-runner guide vane type middle-opening multi-stage centrifugal pump. The multi-runner guide vane type middle-opening multi-stage centrifugal pump comprises a pump body, a water inlet, a water outlet, a water outlet opening valve, a pressure sensor, a pump cover, a main shaft, a rotating speed detection device, a first driving device, a multi-stage impeller, a multi-runner guide vane, a middle partition plate, a second driving device and a center control module. The stability of the centrifugal pump is improved by arranging the multi-stage impeller and the multi-runner guide vane which are of a symmetrical structure, the opening degree of the water outlet opening degree valve and the rotating speed of the main shaft are controlled and adjusted by arranging the center control module, the center control module can set a preset water pressure standard, the central control module intelligently adjusts the real-time water pressure of the water outlet according to the preset water pressure standard, so that the real-time water pressure of the water outlet meets the requirement of the working condition, the complex and changing working conditions can be dealt with, and real-time control and adjustment are achieved on the basis that normal operation of the centrifugal pump is guaranteed.

Description

technical field [0001] The invention relates to the technical field of centrifugal pumps, in particular to an intelligently adjusted multi-channel guide vane type split multistage centrifugal pump. Background technique [0002] Split multi-stage centrifugal pumps are widely used in water conservancy, steel, electric power, coal mining, oil field water injection and petrochemical industries. With the development of industry, the single unit capacity of split multi-stage pumps is increasing. The requirements for pumps are not only efficiency In addition to cavitation performance, its reliability requirements are getting higher and higher. However, there is no unified calculation formula related to design parameters for reliability. Therefore, design often becomes an abstract requirement and cannot be estimated in advance. Of course, the use of high-quality steel is one aspect of improving the reliability of the pump, but as a designer, reasonable structural design is undoubted...

AI Technical Summary

Problems solved by technology

[0004] For this reason, the present invention provides a multi-channel guide vane split split multi-stage centrifugal pump to overcome the problem in the prior art that it cannot be adjusted accurately when dealing with changes in complex working conditions.

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