Design method of high-speed pump and impeller blades and guide vane blades based on x-type staggered

A technology of guide vanes and impeller vanes, which is applied to the components, pumps, and pump elements of pumping devices for elastic fluids, can solve the problems of high-speed centrifugal pumps such as high noise, reduce hydraulic losses, reduce dynamic and static interference, The effect of pulsation performance improvement

Active Publication Date: 2019-08-16
CHINA AGRI UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a design method based on an X-shaped staggered high-speed pump and impeller blades and guide vane blades to improve the pulsation performance of the high-speed centrifugal pump to solve the problem of excessive noise of the high-speed centrifugal pump

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  • Design method of high-speed pump and impeller blades and guide vane blades based on x-type staggered
  • Design method of high-speed pump and impeller blades and guide vane blades based on x-type staggered
  • Design method of high-speed pump and impeller blades and guide vane blades based on x-type staggered

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[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Embodiments of the present invention provide an X-type staggered high-speed pump, such as figure 1 As shown, the high-speed pump includes: an impeller structure 1 and a guide vane structure 2 . The impeller structure 1 is inscribed in the guide vane structure 2 . The impeller structure 1 includes: a cover plate 11 and a plurality of ...

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Abstract

The invention relates to the field of low-noise impeller and guide vane hydraulic design, and discloses a high-speed pump based on X-type staggering and an impeller blade and guide vane blade design method. The high-speed pump comprises an impeller structure and a guide vane structure. The impeller structure comprises a cover plate and a plurality of impeller blades. The multiple impeller blades are evenly arranged in the circumferential direction of the cover plate. The outlet edge inclination angle theta of the impeller blades is the included angle between the outlet edges of the impeller blades and the cover plate. The guide vane structure comprises a guide vane fixing structure and a plurality of guide vane blades. The multiple guide vane blades are evenly arranged on the guide vane fixing structure in the circumferential direction of the guide vane fixing structure, and the inlet edge inclination angle alpha of the guide vane blades is the included angle between the inlet edges ofthe guide vane blades and the cover plate. Theta is larger than or equal to 36 degrees and smaller than or equal to 56 degrees, alpha is larger than or equal to 36 degrees and smaller than or equal to 56 degrees, the impeller blades are opposite to the guide vane blades, accordingly, the inlet edges of the guide vane blades at the corresponding positions and the outlet edges of the impeller blades are staggered in an X shape, and accordingly the problem about noise caused by flow induced vibration during high-speed centrifugal pump running is solved.

Description

technical field [0001] The invention relates to the field of hydraulic design of low-noise impellers and guide vanes, in particular to an X-shaped staggered high-speed pump and a design method for impeller blades and guide vane blades. Background technique [0002] High-speed centrifugal pumps are high-lift liquid pressurization equipment, and are widely used in petrochemical, aerospace and other fields. In the face of modern high-tech technical requirements, for traditional rotary machinery, in addition to meeting basic performance requirements, noise and other conditions are also required. Noise is the noise generated by rotary machinery and its systems caused by the combined effect of structural vibration of rotary machinery (flow-induced noise) and fluid flow (flow-induced noise). It has an important impact on the stability, safe operation and concealment of the system. [0003] Therefore, improving the noise performance of high-speed centrifugal pumps through hydrauli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/44F04D29/66
CPCF04D29/445F04D29/669
Inventor 肖若富魏志聪杨魏姚志峰
Owner CHINA AGRI UNIV
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