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Shaft seal mechanism

A shaft seal and shaft sleeve technology, which is applied in the field of shaft seal mechanism, can solve the problems of water ingress in the shaft seal, and achieve the effect of avoiding scaling and simple structure

Pending Publication Date: 2020-06-09
DALIAN CONSERVATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems in the prior art, the present invention aims to disclose a shaft seal mechanism to solve the problem of water entering the shaft seal and a series of problems and hazards caused by the water entering the shaft seal

Method used

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Examples

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Effect test

Embodiment 1

[0030] A shaft seal mechanism for a multi-blade baffle, located in the lower half of the multi-blade baffle device body 1, such as figure 2 As shown, it includes a valve plate 2, a shaft 4, a shaft sleeve 3 with a flange at one end, and a sealing packing 7; the sealing packing 7 is filled in the annular gap between the shaft 4 and the shaft sleeve 3, and the two ends are respectively Compressed by the flange gland 5 and the limit ring 8, the limit ring 8 is fixed in the flangeless end of the shaft sleeve 3; its outer ring is attached to the inner wall of the shaft sleeve, and its inner ring and the Shaft clearance fit.

[0031] The device body 1 is provided with a through hole corresponding to the position of the shaft sleeve 3, and one end of the shaft sleeve 3 without a flange passes through the through hole to protrude out of the inner wall of the device body 1; the valve plate 2 is correspondingly opened A notch corresponding to the outer dimension of the part of the sha...

Embodiment 2

[0036] A shaft seal mechanism for a uniaxial baffle, located in the lower half of the uniaxial baffle device body 1, such as image 3 As shown, it includes a valve plate 2, a shaft 4, a shaft sleeve 3 with a flange at one end, and a sealing packing 7; the sealing packing 7 is filled in the annular gap between the shaft 4 and the shaft sleeve 3, and the two ends are respectively Compressed by the flange gland 5 and the limit ring 8, the limit ring 8 is fixed in the flangeless end of the shaft sleeve 3; the size of the limit ring 8 and the shaft 4 and the shaft sleeve 3 And cooperate with embodiment 1.

[0037] The device body 1 is provided with a through hole corresponding to the position of the shaft sleeve 3, and the flange-free end of the shaft sleeve 3 passes through the through hole to protrude from the inner wall of the uniaxial baffle plate 1; on the valve plate 2 Correspondingly, a notch corresponding to the outer dimension of the part of the shaft sleeve 3 protruding ...

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Abstract

The invention relates to a shaft seal mechanism which is positioned on an equipment body and comprises a valve plate, a shaft sleeve with a flange at one end and sealing filler, wherein the sealing filler is filled in an annular gap between the shaft and the shaft sleeve, and two ends of the sealing filler are correspondingly pressed; a through hole is arranged on the equipment body correspondingto the shaft sleeve, and one end of the shaft sleeve without the flange penetrates through the through hole and extends out of the inner wall of the equipment body; and a notch with the same overall dimension as the part of the shaft sleeve extending out of the inner wall of the equipment body is arranged on the valve plate at the corresponding position. The shaft seal mechanism can be widely applied to shaft seal parts of mechanical equipment or valves and other occasions, and effectively prevents the problems of scaling, shaft locking after caking and the like caused by water entering the shaft seal parts, thereby ensuring safe production and saving maintenance cost and production cost.

Description

technical field [0001] The invention relates to a shaft seal, in particular to a shaft seal mechanism capable of preventing water from entering the shaft seal. Background technique [0002] The shaft seal part of the gas phase medium pipe or flue is often at or near the junction of the cold and hot walls. Due to the existence of cold and hot walls, dew condensation will often occur on the shaft seal, and the water formed by condensation will flow into the shaft seal; sometimes, the external water, including rainwater, will also pass through the poorly sealed pipe or flue. part enters and then flows into the shaft seal part. When the medium is a sulfur-containing gas, its penetration is extremely strong, and it often seeps into the shaft seal, and then reacts with the water entering the shaft seal to form a very hard block For example, after the reaction of water and sulfur-containing flue gas, scale and agglomerate will lock the shaft, making it very difficult to rotate the...

Claims

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Application Information

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IPC IPC(8): F16K1/226F16K41/02B08B5/02
CPCB08B5/02F16K1/2268
Inventor 王嘉贤任海杰张丽莹
Owner DALIAN CONSERVATION SCI & TECH CO LTD