Integrated shaft end sealing device

A shaft end sealing and integrated technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of fast wear of internal sealing components, high operation and maintenance costs, achieve reliable sealing, no pollution in maintenance, and overcome limitations sexual effect

Active Publication Date: 2014-07-23
TIANHUA INST OF CHEM MACHINERY & AUTOMATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Its technical limitation is that this type of sealing structure belongs to the field of mechanical seals. For liquid-solid mixed-phase media, the internal sealing components wear out quickly, resulting in higher operation and maintenance costs in the later stage.

Method used

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Embodiment Construction

[0030] Below, the technical scheme of the present invention will be further described in conjunction with the accompanying drawings:

[0031] An integrated shaft end sealing device, mainly composed of a first-stage floating ring seal and a second-stage stuffing chamber with a sealing medium distribution ring;

[0032] The primary floating ring seal is composed of 4 sets of combined floating ring seals, the first 4 sets and the last 4 sets are symmetrically installed back to back, respectively placed on both sides of the L-shaped spacer ring 13; and through the floating ring gland 19 and the floating ring cavity The body 7 is assembled into one body and becomes a packaged structure. Then, it is installed on the shaft sleeve 11 that has been treated with surface hardening and smoothness, and becomes an integrated rotary shaft combined sealing device. Each floating ring seal is composed of carbon ring 14, L-shaped spacer ring 13, limit ring 10, stop pin 12, and axial spring 5; O...

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Abstract

The invention relates to an integrated shaft end sealing device which is mainly composed of a primary floating ring sealing structure and a secondary filler sealing cabinet. The secondary filler sealing cabinet is provided with a sealing medium distributing ring. The primary floating ring sealing structure is composed of a plurality of groups of floating ring seals, wherein the several former groups of float ring seals and the several later groups of float ring seals are symmetrically arranged back to back and are respectively arranged on the two sides of an L-shaped partition ring. The secondary filler sealing cabinet provided with the sealing medium distributing ring is composed of a hard partition ring, fillers, the sealing medium distributing ring, a filler pressing cover and a filler box. The integrated shaft end sealing device is mainly used for sealing shaft ends of middle-low-pressure rotating shaft type equipment. The integrated shaft end sealing device can achieve an integrated combined sealing structure, can achieve the purpose of zero leakage of dangerous media in the rotating shaft type equipment and has the advantages of being long in service life, reliable in sealing, simple to maintain, convenient to overhaul, free of pollution and the like.

Description

technical field [0001] The invention relates to an integrated combined sealing structure for shaft ends of rotating shaft equipment, which is mainly used in the shaft end sealing of low-pressure rotating shaft equipment in the petrochemical industry where the medium in the equipment shell is gas-liquid or liquid-solid mixed phase. [0002] Background technique [0003] In the existing petrochemical industry, the medium in the equipment shell is gas-liquid or liquid-solid mixed phase. The shaft end seal of low-pressure rotary shaft equipment mainly uses sealing structures such as floating ring seals and mechanical seals; existing sealing structures similar to this combination seal as follows: [0004] ⑴Combined floating ring sealing device (patent No. 00132605.8) and a floating ring sealing device (patent No. No. 00132605.8) mainly improves the adaptability of the floating ring sealing device to the oil pressure difference, expands the safe operation range, and effectively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16F16J15/40
Inventor 赵旭何德强王瑞刘世平郭辉张睿张万尧
Owner TIANHUA INST OF CHEM MACHINERY & AUTOMATION
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