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Auto-boost mechanical seal for slurry pumps

A technology for mechanical seals and slurry pumps, applied to pump components, mechanical equipment, machines/engines, etc., can solve problems such as poor sealing performance, wear of seal end faces, and reduced service life, so as to prolong service life and protect The effect of being worn

Inactive Publication Date: 2013-12-25
WUHU ZHONGTIAN SEALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Slurry pumps have a wide range of applications, and existing slurry pumps generally have defects such as poor sealing performance
At the same time, there is an unbalanced pressure between the moving ring and the static ring, which causes the end face of the seal to be worn and reduces its service life

Method used

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  • Auto-boost mechanical seal for slurry pumps

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Embodiment Construction

[0014] In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

[0015] As a preferred embodiment of the present invention, please refer to figure 1 , A slurry pump automatic pressurizing mechanical seal, comprising a shaft sleeve 1 and a flange 13 placed on the shaft sleeve 1, the shaft sleeve 1 is sleeved with a sealing component, the sealing component includes The front static ring 4 and the front moving ring 5 are placed on one side of the flange 13 and matched. The other side of the front moving ring 5 is provided with a spring seat 16, and the spring seat 16 is provided with a spring 8. A push ring 7 is provided on both sides of the spring 8, and one side of the push ring 7 placed on the other side of the spring 8 is provided with a matching rear moving ring 10 and a rear static ring 9. The end of the rear static ring 9 The part is fixed by the end cap 11.

[0016] A d...

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PUM

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Abstract

The invention relates to the technical field of seals, in particular to an auto-boost mechanical seal for slurry pumps. The auto-boost mechanical seal comprises a shaft sleeve and a flange with which the shaft sleeve is sleeved. The shaft sleeve is sleeved with a seal component. The seal component comprises a front fixed ring and a front moving ring; the front fixed ring and the front moving ring fitting each other are disposed on one side of the flange; a spring holder is disposed on the other side of the front moving ring; a spring is disposed inside the spring holder; push rings are disposed on two sides of the spring; a rear moving ring and a rear fixed ring fitting each other are disposed on one side of the push ring disposed on the other side of the spring. A transmission sleeve is mechanically sealed from two end faces, so that the sealed end is boosted by circulating water inside a sealed cavity, and bearing pressure of the seal can be more than four times as high as the normal seal; high pressure is introduced to the bottom of a deformed groove, a boss can tightly hold a seal ring inside the groove through automatic boosting of an auxiliary impeller, unbalanced moving ring and fixed ring pressure of the seal can be balanced ingeniously, the ends of the seal can be effectively protected from abrasion, and the service life of the seal is prolonged.

Description

[0001] Technical field [0002] The invention relates to the technical field of seals, in particular to an automatic pressurizing mechanical seal of a slurry pump. Background technique [0003] Slurry pumps have a wide range of applications, and existing slurry pumps generally have defects such as poor sealing performance. At the same time, there is an unbalanced pressure between the moving ring and the static ring, which causes the end face of the seal to be worn and reduces its service life. Summary of the invention [0004] In view of the technical problems existing in the prior art, the purpose of the present invention is to provide an automatic pressurization mechanical seal for a slurry pump. The seal is designed with a double-end mechanical seal transmission sleeve according to the pump rotation principle, so that the sealing cavity The circulating water pressurizes one end of the seal, so that the pressure of the seal can reach more than 4 times of the normal seal, and int...

Claims

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Application Information

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IPC IPC(8): F04D29/08
Inventor 赵长红
Owner WUHU ZHONGTIAN SEALS
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