Assembly annular synchronous displacement sealing structure

Abstract

The invention discloses an assembly annular synchronous displacement sealing structure. The structure comprises a gland, a stuffing box, connecting rods, an aligning disk, crank arm anchors, fixed rings, a central shaft and a compensator, wherein the gland is arranged outside the stuffing box; one end of the stuffing box is connected with the compensator; the periphery of the entire assembly annular synchronous displacement sealing structure consists of three annular structures with the same diameter; the two ends of the structure are provided with the fixed rings and the aligning disk is arranged in the middle of the structure; circular holes with the same aperture are formed on all the fixed rings and the aligning disk and uniformly distributed along the annular structure; at least two connecting rods and crank arm anchors are uniformly distributed between the aligning disk and the fixed rings along the axial direction; the connecting rod is connected with the crank arm anchors at the two ends after passing through the circular holes on the aligning disk; the compensator is positioned in the fixed ring and the aligning disk; and the central shaft passes through the compensator. By using a circumferential eccentric self-adjustment method, the sealing wear and leakage caused by angular displacement and transverse displacement are greatly eliminated, so that the working efficiency is improved, the production cost is reduced and the benefit is obviously improved.

Description

technical field [0001] The invention relates to a mechanical dynamic sealing structure applied in multiple industries, in particular to a sealing structure of a container annular synchronous displacement. Background technique [0002] Sealing technology is widely used in industry, agriculture, national defense and people's daily life. Due to the different use occasions, affected by the operating medium, structure, temperature, pressure and installation quality, the seals show obvious differences in service life and sealing effect. Especially with the rapid development of modern machinery industry, chemical industry, petroleum industry, environmental protection industry and other industries, the proportionality and continuity requirements of modern large-scale industrial production process require long-term operation of equipment, and failure of any link may cause Interrupt the production process and cause losses. Therefore, higher and higher requirements are put forward to...

AI Technical Summary

Problems solved by technology

However, in the on-site maintenance of the shaft seal, it was found that the leakage of the mechanical seal did not appear entirely at the end faces of the dynamic and static rings of the mechanical seal. Many leakages occurred because the dynamic ring seal ring and the shaft sleeve of the mechanical seal produced Relative movement in the circular direction

Friction torque is generated between the end faces of the dynamic and static rings, which cannot meet the axial displacement of the large span of the mechanical central axis, resulting in mechanical fatigue and wear

The sealing structure of the moving parts at the inlet and outlet of some equipment often adopts a single packing seal form, and the sealing requirements are high, and the radial and axial displacement of the packing seal due to the thermal effect of the equipment forms eccentricity, which will easily lead to faster wear of the packing and medium leakage. Shorten the equipment operation cycle and lengthen the maintenance time

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