Air sealing device

A technology of air sealing and sealing seat ring, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of lubrication and oil mist river environmental pollution, etc., achieve safe use, good sealing effect, and reduce oil throwing effect

Active Publication Date: 2014-03-26
李荣耀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Leaked lubrication and oil mist have also caused seri

Method used

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Embodiment Construction

[0021] In order to better understand the shape, structure and characteristics of the present invention, preferred embodiments will be listed below and described in detail with reference to the accompanying drawings.

[0022] An air-tight device of the present invention includes an air delivery device 8 and an oil absorption mist treatment device 9, the air delivery device 8 includes an air delivery pipe 8-2 and an air delivery device motor 8-1 connected to the air delivery pipe 8-2. The sealing seat 2 has an upper chamber 2-1 and a lower chamber 2-2. One end of the air supply pipe 8-2 is connected to one side of the upper chamber 2-1 of the sealing seat ring 2 for supplying air to the upper chamber 2-1 of the sealing seat ring 2, and the other end communicates with the outside atmosphere. A gravity one-way valve 6 is installed in the air supply pipe 8-2. When the air supply device 8 stops working, the gravity one-way valve 6 closes the air supply pipe 8-2; Said gravity one-wa...

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Abstract

The invention relates to an air sealing device used for being in seal fit with a rotating shaft. The air sealing device comprises a sealing end cover, a seal holder ring, air supply devices and absorbed oil mist treatment devices, wherein the seal holder ring, the air supply devices and the absorbed oil mist treatment devices are fixed on the sealing end cover. The seal holder ring is provided with an upper chamber and a lower chamber, each air supply device comprises an air supply pipe and an air supply device motor connected with the air supply pipe, one end of each air supply pipe is connected to one side of the upper chamber of the seal holder ring, and the other end of the same is communicated with the outside atmosphere. Each absorbed oil mist treatment device comprises an air outlet pipe, an absorbed oil mist treatment device motor connected with the air outlet device and an oil mist filter arranged in the air outlet pipe, one end of each air outlet pipe is connected to one side of the lower chamber of the seal holder ring, and the other end of the air outlet pipe is communicated with the outside atmosphere. The problems of oil throwing, oil leakage, oil mist escaping and the like can be effectively solved, and the air sealing device is safe to use and has good sealing effect.

Description

technical field [0001] The present invention relates to a hermetic sealing device. Background technique [0002] At present, there are more and more large-scale rotating machines in operation, such as steam turbine generator sets, hydro-generator sets, etc. Large-scale rotating machinery equipment is designed with a bearing box, and a large amount of lubricating oil needs to be placed in the bearing box to lubricate and dissipate the bearing bush. The dynamic and static joints need to be sealed, and currently comb structures, contact seals and labyrinth seals are used. [0003] The comb-tooth seal structure must maintain a certain gap between the comb teeth and the shaft during design. If the gap is too large, a large amount of lubricating oil will leak out. If the gap is small, the comb teeth will easily rub against the shaft to generate heat, which will affect the safety of the unit. run. [0004] Contact seal structure, the friction between the seal teeth and the shaft ...

Claims

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Application Information

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IPC IPC(8): F16J15/16
Inventor 李荣耀
Owner 李荣耀
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