An ultra-high-speed and high-efficiency complex curved surface centrifugal impeller

A centrifugal impeller, complex curved surface technology, used in non-variable volume pumps, pump components, components of pumping devices for elastic fluids, etc. Ensure the high efficiency and high-speed stability of the centrifugal impeller, and achieve the effect of improving the impeller flow and pressure ratio, improving efficiency and increasing work efficiency

Active Publication Date: 2021-06-15
湖南泛航智能装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for ultra-high-speed centrifugal blowers, the linear velocity at the largest diameter of the centrifugal impeller exceeds the speed of sound, and the existing design scheme cannot ensure the high efficiency and high-speed stability of the centrifugal impeller.
[0004] However, the existing centrifugal impeller meter scheme, on the one hand, increasing the speed cannot effectively increase the outlet flow and outlet pressure, and the impeller efficiency tends to decrease; The performance requirements are getting higher and higher, and the existing solutions cannot meet the design requirements of ultra-high speed

Method used

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  • An ultra-high-speed and high-efficiency complex curved surface centrifugal impeller
  • An ultra-high-speed and high-efficiency complex curved surface centrifugal impeller
  • An ultra-high-speed and high-efficiency complex curved surface centrifugal impeller

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Embodiment Construction

[0028] 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. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0029] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention discloses an ultra-high-speed and high-efficiency complex curved surface centrifugal impeller, which includes a disc and blades, the blade wrap angle is controlled at 45°-62°, the blade outlet forward angle is controlled at 25°-32°, and the blade inlet installation angle is 32°. °~40°, the blade outlet installation angle is controlled at 28°~60°, without changing the overall size of the impeller, the flow rate of the centrifugal impeller is greatly increased, the pressure at the impeller outlet is reduced, the flow loss is small, and the working efficiency is higher. The dynamic characteristics are better.

Description

technical field [0001] The invention relates to the field of fan impellers, and more specifically relates to an ultra-high-speed, high-efficiency, complex-curved-surface centrifugal impeller. Background technique [0002] Centrifugal impeller refers to the wind wheel that enters the air axially and exits radially, and uses centrifugal force (depending on the speed and outer diameter) to do work to increase the pressure of the air. [0003] The performance of the centrifugal impeller directly determines the performance of the fan equipment. With the development of the turbine rotating machinery towards high speed, high efficiency and high reliability, the design requirements for the centrifugal impeller are getting higher and higher. At present, the design of the centrifugal impeller is mainly based on the three-dimensional flow design theory, and the computational fluid dynamics analysis of the flow channel has important engineering significance for the design of the medium ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/66
CPCF04D29/281F04D29/30F04D29/663F04D29/666F04D29/667
Inventor 郑学斌张勇
Owner 湖南泛航智能装备有限公司
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