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Centrifugal pump

A centrifugal pump and vane technology, applied in the field of centrifugal pumps, can solve the problems of high manufacturing and maintenance costs, short service life of the impeller, etc., and achieve the effects of improving the service life, saving the overall cost, and diversifying the fixing methods.

Inactive Publication Date: 2014-01-22
柳州市双铠工业技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a centrifugal pump, which can solve the problems of short service life of the impeller and high cost of manufacture and maintenance in the prior art

Method used

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  • Centrifugal pump
  • Centrifugal pump
  • Centrifugal pump

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Embodiment 1: Enclosed impeller (including blade 1, front cover 3 and rear cover 2)

[0027] Such as Figure 1~Figure 3 The shown centrifugal pump includes an impeller, and the impeller is divided into three connecting blocks with the same shape. The first block is a connecting block composed of a blade part 1-1, a front cover part 3-1 and a rear cover part 2-1. The second block is a connection block composed of the blade part 1-2, the front cover part 3-2 and the rear cover part 2-2, and the third block is composed of the blade part 1-3, the front cover part 3-3 and the The connecting blocks formed by the back cover parts 2-3, the back cover parts 2-1, 2-2, 2-3 of each connecting block are spliced ​​into a circular plate body on the side where the blade part is connected to the drive shaft; The front cover parts 3-1, 3-2, and 3-3 of the connecting blocks are spliced ​​into a circular plate body located on the opposite side of the connecting drive shaft on the blade pa...

Embodiment 2

[0028] Embodiment 2: Enclosed impeller (including blade 1, front cover 3 and rear cover 2)

[0029] Such as Figure 1~Figure 3 In the centrifugal pump shown, the structure of the impeller is the same as in the first embodiment, and the surface of the blade 1 is inlaid with a wear-resistant material with a hardness greater than or equal to HRC50; the wear-resistant material is a hard alloy material.

Embodiment 3

[0030] Embodiment 3: front semi-open impeller (including blade 11, rear cover 12)

[0031] Such as Figure 4~Figure 5 The shown centrifugal pump includes an impeller, and the impeller is divided into three pieces with the same shape. The first piece is a connection block composed of the blade part 11-1 and the rear cover plate part 12-1, and the second piece is made of the blade part 11-2. and the connecting block composed of the rear cover part 12-2, the third piece is a connecting block composed of the blade part 11-3 and the rear cover part 12-3, the rear cover parts 12-1, 12- of each connecting block 2. 12-3 is spliced ​​into a circular plate on the side where the blade part is connected to the drive shaft, and the connecting blocks are connected by bolts 4 and nuts 15; the blade 11 is made of a wear-resistant material with a hardness greater than or equal to HRC50. The wear-resistant material is ceramic material.

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Abstract

The invention discloses a centrifugal pump, and relates to the technical field of radial flow pump manufacturing. The centrifugal pump comprises an impeller. The impeller is formed by combining at least two connecting parts which comprise blade parts and cover plate parts. Connecting blocks are connected through connecting pieces. The centrifugal pump can solve the problems that in the prior art, due to the fact that blades, front cover plates and rear cover plates of the impeller cannot be detached, the impeller is short in service life and high in manufacturing and maintenance cost.

Description

technical field [0001] The invention relates to the technical field of centrifugal pump manufacture, in particular to a centrifugal pump with a detachable impeller. Background technique [0002] At present, it is widely used in mining, metallurgy, electric power, chemical industry and other industries to produce centrifugal pumps for slag discharge, ore discharge, and sand excavation (usually called slurry pumps or slurry pumps). The impellers generally adopt two types of structures: semi-open and closed. The closed impeller is manufactured by integrally casting the blades of the impeller, the front cover and the rear cover; when the centrifugal pump transports the mixed fluid of solid and liquid, the blades of the impeller of the centrifugal pump will disappear after working for a period of time. It will be worn and affect the working performance of the centrifugal pump. In severe cases, the impeller will be damaged and the centrifugal pump will be shut down. Some harder m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/02
Inventor 韦成勋佘淑华
Owner 柳州市双铠工业技术有限公司
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