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

A centrifugal pump and multi-channel technology, applied in the field of centrifugal pumps, can solve problems such as inaccurate adjustment of changes, achieve the effect of guaranteeing supply capacity, improving real-time water pressure, and meeting supply demand

Active Publication Date: 2021-10-01
CHANGSHA CANON GENERAL PUMPS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

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Embodiment Construction

[0049] In order to make the objects and advantages of the present invention clearer, the present invention will be further described below in conjunction with the examples; it should be understood that the specific examples described here are only for explaining the present invention, and are not intended to limit the present invention.

[0050] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention.

[0051] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "left", "right", "inner", "outer" and other indicated directions or positional relationships are based on the terms shown in the accompanying drawings. The direction or positional relationship shown is ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D1/06F04D15/00F04D29/44
CPCF04D1/06F04D15/0022F04D15/0066F04D29/448F05D2270/301F05D2270/304Y02P20/10
Inventor 罗优陈博群杨宇峰周仁福龚贤辉张幸彭胜前
Owner CHANGSHA CANON GENERAL PUMPS
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