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A water ring sealed mixed flow pump

A technology of water ring and mixed flow pumps, which is applied in the direction of non-variable pumps, pumps, and parts of pumping devices for elastic fluids, and can solve the problems affecting pump working efficiency and water absorption height, pump performance and water absorption performance. , poor flat sealing effect and other problems, to achieve the effect of easy processing, increase water absorption height, and increase suction lift

Active Publication Date: 2019-03-15
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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  • A water ring sealed mixed flow pump
  • A water ring sealed mixed flow pump
  • A water ring sealed 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 sealed mixed flow pump, which comprises a pump body, an impeller, a pump cover, a back cover, a bearing body and a pump shaft. The pump cover and the rear cover are respectively installed on the pump body for sealing the pump body. The bearing body is installed on the back cover. The pump shaft passes through the bearing body. The back cover penetrates the inside of the pump body. The impeller is mounted on the end of the pump shaft and is located in the pump body. The impeller is a hub structure consisting of a shaft, blades and rims. A sealing end face is formed between the rim and the pump cover. Tooth protrusions are arranged on the sealing end surface between the wheel rim and the pump cover. There are multiple tooth protrusions, which are arranged alternately along the circumference of the wheel rim. The sealing end surface between the pump cover and the wheel rim is provided with tooth grooves matching with the tooth protrusions. When the invention works, the water in the tooth groove is driven to rotate at a high speed by the rotating tooth protrusion to form a water wall to realize 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 Patents(China)
IPC IPC(8): F04D13/06F04D29/18F04D29/16
CPCF04D29/167
Inventor 曹杰华曹浏
Owner 曹杰华
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