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High-lift helical-blade impeller

A technology with helical blades and high head, which is applied to parts of pumping devices for elastic fluids, non-variable pumps, machines/engines, etc. It can solve the problems of centrifugal movement of the conveying medium and poor pumping capacity, etc. Achieve the effect of significant boosting effect and increased cutting effect

Inactive Publication Date: 2015-08-12
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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Examples

Experimental program
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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. There is a groove 5 at the end of the mouth ring 2, the depth of the groove 5 is 2mm, the degree of the installation angle of each point on the blade 3 is wave-shaped distribution, the thickness of the blade 3 changes according to a linear rule, and the blade 3 The thickness of the vane 3 is distributed from small to large and then to small, and the blade 3 is thinne...

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Abstract

The invention relates to a high-lift helical-blade impeller which comprises a pump shaft sleeve, an impeller ring and a blade. The impeller ring is arranged at the end portion of the pump shaft sleeve, and the impeller ring is provided with the blade; the blade is in a helical shape; the spiral wrap angle of the blade is 200-220 degrees; the entrance installation angel of the blade is 10-12 degrees; the exit installation angel of the blade is 14-18 degrees; the impeller ring is of a cone shape; the cone angle of the impeller ring is 6-10 degrees; the width of the impeller ring is 40-52 mm; and the impeller ring is uniformly provided with a plurality of keyholes. The high-lift helical-blade impeller improves delivery capacity of a pump in transmitting a high gas content medium.

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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