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Dry gas sealing structure

A technology of dry gas sealing and sealing ring, which is applied in the field of pump sealing, which can solve the problems of pump quality, high maintenance costs, poor sealing structure of heat medium pumps, etc., and achieve the effect of simple structure, reduced economic loss and good sealing effect

Inactive Publication Date: 2012-02-22
大连金地机电工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sealing of the pump is the key to the quality. The original heat medium pump has poor sealing structure, serious oil leakage and high maintenance costs.

Method used

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  • Dry gas sealing structure
  • Dry gas sealing structure

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Embodiment Construction

[0009] Such as figure 1 As shown, the present invention includes a shaft sleeve 1, a stationary ring 4, and a rotating ring 3. The shaft sleeve 1 is sleeved on the shaft, and the rotating ring 3 is installed in the shaft sleeve 1. The shaft sleeve 1 and the rotating ring A sealing ring 2 is installed between the 3, a static ring 4 is installed on the rotating ring 3, a spring 5 is installed between the static ring 4 and the spring seat 6, the sealing surface of the rotating ring 3 is ground and polished, and A fluid dynamic pressure groove with a special function is processed on it. When the dry gas seal rotating ring 3 rotates, the sealing gas is sucked into the dynamic pressure groove, and flows from the outer diameter to the center radially towards the sealing weir respectively. Due to the section of the sealing weir Under the effect of flow, the gas entering the sealing surface is compressed, and the gas pressure rises. Under the action of this pressure, the sealing surfac...

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PUM

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Abstract

The invention discloses a dry gas sealing structure which comprises a shaft sleeve, a static ring and a rotating ring, wherein the shaft sleeve is sleeved on the shaft, the rotating ring is installed in the shaft sleeve, the static ring is installed on the rotating ring, and a spring is installed between the static ring and a spring seat. The dry gas sealing structure provided by the invention has the following characteristics: the structure is simple and reliable, the sealing effect is good, and the sealing structure does not need to be maintained when in use, thus economic losses can be reduced.

Description

technical field [0001] The invention relates to the sealing field of pumps, in particular to a dry gas sealing structure for heating medium pumps. Background technique [0002] The sealing of the pump is the key to the quality. The original heat medium pump has poor sealing structure, serious oil leakage and high maintenance costs. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide a dry gas sealing structure. [0004] The technical solution adopted by the present invention to achieve the above purpose is: a dry gas sealing structure, including a shaft sleeve, a static ring, and a rotating ring, the shaft sleeve is sleeved on the shaft, and the rotating ring is installed in the shaft sleeve , a static ring is installed on the rotating ring, and a spring is installed between the static ring and the spring seat. [0005] A sealing ring is installed between the shaft sleeve and the rotating ring. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00F16J15/34
Inventor 张桂春
Owner 大连金地机电工程有限公司