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Water ring type sealing mixed-flow pump

A water-ring type, mixed-flow pump technology, applied in non-variable-capacity pumps, pumps, components of pumping devices for elastic fluids, etc. , poor plane sealing effect, etc., to achieve the effect of easy processing, increase water absorption height, and increase suction lift

Active Publication Date: 2016-10-05
曹杰华 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention: the plane sealing effect between the impeller and the pump cover is not good, which affects the working efficiency and water absorption height of the pump, and is also prone to mechanical wear, which leads to a decrease in the performance and water absorption performance of the pump

Method used

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  • Water ring type sealing mixed-flow pump
  • Water ring type sealing mixed-flow pump
  • Water ring type sealing mixed-flow pump

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, a water ring sealed mixed flow pump includes a pump body 1 , an impeller 2 , a pump cover 3 , a back cover 4 , a bearing body 5 , and a pump shaft 6 . The pump body 1 is a shell structure with a hollow interior. The pump cover 3 and the rear cover 4 are respectively installed on the pump body 1 for sealing the pump body 1 . Wherein, the inside of the pump cover 3 is hollow, forming a water inlet 32 ​​. The pump cover 3 is used to connect the water inlet pipe and the pump body 1. The bearing body 5 is installed on the back cover 4 . The pump shaft 6 enters the inside of the pump body 1 after passing through the bearing body 5 and the rear cover 4 . A bearing 51 is provided between the pump shaft 6 and the bearing body 5 , that is, the pump shaft 6 is installed on the bearing body 5 through the bearing 51 in the bearing bo...

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Abstract

The invention discloses a water ring type sealing mixed-flow pump which comprises a pump body, an impeller, a pump cover, a rear cover, a bearing body and a pump shaft, wherein the pump cover and the rear cover are mounted on the pump body, and are used to seal the pump body; the bearing body is mounted on the rear cover; the pump shaft penetrates through the bearing body; the rear cover penetrates into the pump body; the impeller is mounted at the end part of the pump shaft and is positioned in the pump body; the impeller is in a wheel hub structure consisting of a wheel shaft, vanes and a wheel flange; a sealing end face is formed between the wheel flange and the pump cover; a plurality of tooth bulges are formed on the sealing end face between the wheel flange and the pump cover, and are arranged along the wheel flange in a circumferentially spaced manner; and tooth grooves fit with the tooth bulges are formed in the sealing end face between the pump cover and the wheel flange. When the water ring type sealing mixed-flow pump works, the rotating tooth bulges drive water in the tooth grooves to rotate at a high speed to form a water wall, thereby realizing the effect of sealing.

Description

technical field [0001] The invention relates to a mixed flow pump, in particular to a sealing structure between an impeller and a pump cover in the mixed flow pump. Background technique [0002] A mixed flow pump is a pump between a centrifugal pump and an axial flow pump. In the prior art, a flat seal is usually used between the impeller and the pump cover of the mixed flow pump. There must be a certain clearance between the rotating impeller and the fixed pump cover. Due to errors in the manufacturing process, there are varying degrees of axial play and radial runout, and paper pads are usually used to adjust the gap. The size of the gap directly affects the efficiency of the pump, affecting the sealing effect and the water absorption height of the pump. If the gap is too large, the sealing effect between the impeller and the pump cover will be poor, and the water absorption height of the pump will also decrease accordingly. In addition, the gap will continue to increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D29/18F04D29/16
CPCF04D29/167
Inventor 曹杰华曹浏
Owner 曹杰华
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