Mechanical seal assembly

Abstract

The invention discloses a mechanical seal assembly. The mechanical seal assembly comprises a static ring assembly and a movable ring assembly; the static ring assembly comprises a static ring seat, a static ring, a corrugated pipe, a straining ring and a spring; the movable ring assembly comprises a shaft sleeve, a movable ring seat and a movable ring; a vibration reduction ring is arranged in the static ring seat and abuts against the position between the outer side wall of the corrugated pipe and the inner side wall of the static ring seat; the straining ring is arranged between the inner wall of the upper end of the corrugated pipe and the inner wall of the lower end of the static ring seat; the straining ring and the corrugated pipe are both provided with fixing grooves; and the spring is arranged in the fixing grooves. According to the mechanical seal assembly, the spring is arranged between the corrugated pipe and the straining ring, so that the situation that the spring generates radial displacement due to vibration of the static ring seat is avoided; and through the damping ring arranged between the corrugated pipe and the static ring seat, the vibration of the static ring seat is reduced, and the sealing performance and the sealing stability are improved.

Description

technical field [0001] The invention relates to the technical field of mechanical seals, in particular to a mechanical seal assembly. Background technique [0002] A mechanical seal is a shaft seal device for a rotating machine. Such as centrifugal pumps, centrifuges, reactors and compressors and other equipment. Since the transmission shaft runs through the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment, and the medium in the equipment leaks out through this gap. If the pressure inside the equipment is lower than atmospheric pressure, the air leaks into the equipment, so there must be a Shaft sealing device to prevent leakage. There are many types of shaft seals. Because mechanical seals have the advantages of less leakage and long life, mechanical seals are the most important shaft sealing method in these equipments in the world. The mechanical seal is also called the end face seal, which is defined in the relevan...

AI Technical Summary

Problems solved by technology

[0003] At present, the spring in the mechanical seal is directly in contact with the static ring seat, and the pump body will vibrate during the working process, which will be transmitted to the spring through the static ring seat, causing the radial displacement of the spring, resulting in a decrease in the sealing effect

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