High-lift spiral blade impeller

A technology of helical blade and high lift, applied in the components of pumping device for elastic fluid, non-variable-capacity pump, machine/engine, etc. Achieving the effect of significant boosting effect and increased cutting effect

Inactive Publication Date: 2015-09-23
江苏永一泵业科技集团有限公司
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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 high-lift helical blade impeller, which solves the problem of poor pump delivery capacity and centrifugal movement of the delivery medium near the impeller in the prior art;

Method used

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  • High-lift spiral blade impeller
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  • High-lift spiral blade impeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-lift helical blade impeller, including a pump shaft sleeve 1, a mouth ring 2 and blades 3, the mouth ring 2 is set on the end of the pump shaft sleeve 1, and the mouth ring 2 is provided with a blade 3, the blade 3 is Helical, the spiral wrap angle of the blade 3 is 200°, the inlet installation angle α of the blade 3 is 10°, the outlet installation angle β of the blade 3 is 14°, the mouth ring 2 is conical, and The cone angle γ of the mouth ring 2 is 6°, the width b of the mouth ring is 40mm, and a plurality of keyholes 4 are evenly opened on the mouth ring 2, the blades 3 are 3-5 pieces, and the mouth ring 2 There is a groove 5 at the end, the depth of the groove 5 is 1mm, the degree of installation angle of each point on the blade 3 is distributed in a wave pattern, the thickness of the blade 3 changes according to a linear rule, and the thickness of the blade is as small as From large to small, blade 3 is thinner at the outlet and inlet end faces;

Embodiment 2

[0025] A high-lift helical blade impeller, including a pump shaft sleeve 1, a mouth ring 2 and blades 3, the mouth ring 2 is set on the end of the pump shaft sleeve 1, and the mouth ring 2 is provided with a blade 3, the blade 3 is Helical, the spiral wrap angle of the blade 3 is 220°, the inlet installation angle α' of the blade 3 is 12°, the outlet installation angle β' of the blade 3 is 18°, the mouth ring 2 is conical, And the cone angle γ' of the mouth ring 2 is 10°, the width b' of the mouth ring 2 is 52mm, and a plurality of keyholes are uniformly opened on the mouth ring 2, and the blades 3 are 3-5 pieces. The mouth ring 2 ends have groove 5, and the depth of described groove 5 is 2mm, and the degree of the installation angle of each point on the described blade 3 is wave-shaped distribution, and described blade 3 thickness changes according to linear rule, and blade 3 The thickness of the vane 3 is distributed from small to large and then to small, and the blade 3 is ...

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PUM

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Abstract

The invention relates to a high-lift spiral blade impeller. The high-lift spiral blade impeller comprises a pump shaft sleeve, an impeller ring and blades, wherein the impeller ring coats the end part of the pump shaft sleeve, and is provided with the blades; the blades are spiral; spiral wrap angles of the blades are 200-220 degrees; inlet installation angles of the blades are 10-12 degrees; outlet installation angles of the blades are 14-18 degrees; the impeller ring is conical; a taper angle of the impeller ring is 6-10 degrees; the impeller ring is 40-52 mm wide; and multiple key holes are uniformly formed in the impeller ring. The high-lift spiral blade impeller improves the conveying capacity of a pump for conveying mediums with high air content.

Description

technical field [0001] The invention relates to the technical field of axial flow pumps, in particular to a high-lift helical blade impeller. Background technique [0002] At present, the impellers of axial flow pumps on the market are mostly made of stainless steel, and the impeller blades and the mouth ring are vertically arranged. During the working process, when the impeller rotates with the pump shaft, the conveying medium exists near the impeller. Centrifugal movement reduces the ability of the impeller to transport the medium, especially the medium with high gas content; in the development of high gas-oil ratio reservoirs, when the gas-liquid two-phase fluid medium flows through the impeller of the conventional vane pump, the density is relatively low. The large liquid phase is thrown out under the action of centrifugal force, and the gas phase with low density is gathered in the low-pressure area near the inlet of the impeller hub, forming a dead zone. As the working...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/18
Inventor 李增亮刘永付
Owner 江苏永一泵业科技集团有限公司
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