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Impeller of centrifugal pump

A centrifugal pump impeller and blade technology, which is applied in the field of centrifugal pumps, can solve problems such as scrapped impellers, blockage of flow passages, and affecting the pass rate of impellers, and achieve reliable and more stable performance, smoothness and roughness.

Inactive Publication Date: 2013-02-13
无锡艾比德泵业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the size of the impeller is small, the flow channel in the impeller is very narrow, sometimes only about 5mm. When integral casting is used, the flow channel after casting is often blocked, which leads to the scrapping of the impeller, thus affecting the qualified rate of the impeller.

Method used

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  • Impeller of centrifugal pump
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  • Impeller of centrifugal pump

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Embodiment Construction

[0014] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 to Figure 5 Among them, it includes front cover plate 1, blade groove 2, positioning hole 3, rear cover plate 4, blade 5, positioning column 6 and so on.

[0016] Such as figure 1 As shown, the present invention is a centrifugal pump impeller, which includes a front cover 1 and a rear cover 4 which are respectively cast and formed. The front cover 1 and the rear cover 4 are positioned and assembled to form a whole by welding.

[0017] Such as figure 2 , Figure 4 As shown, a plurality of vane slots 2 are evenly distributed on the inner surface of the front cover 1 , and positioning holes 3 are arranged in the vane slots 2 , and the total number of positioning holes 3 is at least two. Preferably, at least one positioning hole 3 is provided in each vane slot 2 , and there are preferably three positioning holes 3 in each v...

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PUM

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Abstract

The invention relates to an impeller of a centrifugal pump. The impeller comprises a front cover plate and a rear cover plate; a plurality of blade grooves are uniformly distributed on the inner side surface of the front cover plate; positioning holes are formed in the blade grooves; a plurality of blades corresponding to the blade grooves are uniformly distributed on the inner side surface of the rear cover plate; positioning columns corresponding to the positioning holes are arranged on the blades; and the front cover plate and the rear cover plate are integrally welded after being positioned and assembled. According to the invention, the whole impeller is divided into the front cover plate and the rear cover plate which are independently poured and then spliced and welded as a whole, so that the smoothness and the roughness of a flow channel in the impeller can be effectively ensured, and the performances of the centrifugal pump can be more reliable and stable.

Description

technical field [0001] The invention relates to a centrifugal pump, in particular to a centrifugal pump impeller. Background technique [0002] In the prior art, the impellers of centrifugal pumps are all integrally cast. When the size of the impeller is small, the flow channel in the impeller is very narrow, sometimes only about 5mm. When integral casting is used, the flow channel after casting is often blocked, which leads to the scrapping of the impeller, thus affecting the qualified rate of the impeller. Contents of the invention [0003] The present invention aims at the above problems and provides a centrifugal pump impeller that will not be clogged. [0004] According to the technical solution of the present invention: a centrifugal pump impeller, including a front cover and a rear cover; a plurality of vane grooves are evenly distributed on the inner side of the front cover, and positioning holes are arranged in the vane grooves; A plurality of blades correspondi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/22
Inventor 杜志高
Owner 无锡艾比德泵业有限公司
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