Mechanical sealing device of floating ring

Abstract

The invention discloses a mechanical sealing device of a floating ring. The mechanical sealing device comprises a movable ring, a movable ring seat, a static ring, a static ring seat, a compensating element and a mounting base, wherein an end face seal is formed on the contact end surface of the static ring and the movable ring; the static ring or the movable ring is composed of a plurality of ring blocks, two adjacent ring blocks are arranged in a way that one ring block is located on the periphery of the other ring block, elastic cushions are installed between all of the ring blocks and thestatic ring seat or the movable ring seat, and a plurality of end face seals are formed on the inner end surfaces of all of the ring blocks and the end surface of the static ring or the movable ring.According to the mechanical sealing device, the movable ring or the static ring is designed into a non-integral shape and is formed in a way that the plurality of ring blocks are combined, so that a plurality of sealing end surfaces which are independent with each other are formed, when a sealing medium flows from one end surface to the other end surface, a certain decompression effect is achieved, a labyrinth seal is simulated, importantly, the phenomenon that the whole sealing system fails due to severe wear of the end surfaces when the integral static ring and the movable ring are adopted can be avoided by adopting the structure, and the service life of the sealing device is prolonged.

Description

technical field [0001] The invention relates to the technical field of mechanical seals, in particular to a mechanical seal device, which is mainly used in rotating machines, such as various pumps, compressors and reactors. Background technique [0002] Mechanical seal (mechanical seal) refers to at least one pair of end faces perpendicular to the axis of rotation, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and the cooperation of the auxiliary seal to keep fit and relatively slide to prevent fluid leakage. device. [0003] Mechanical seals are widely used in petroleum, chemical, mechanical and aerospace fields. Mainly used in rotating machinery, the function of the seal is to prevent the leakage of the sealed medium, and at the same time prevent external pollutants and impurities from entering the equipment cavity, thereby polluting the medium in the equipment cavity. [0004] Currently commonly used mechanic...

AI Technical Summary

Problems solved by technology

[0006] However, there are still many problems in mechanical seals at present, such as wear, scratches or cracks on the sealing surface of the sealing ring, which can easily lead to the overall failure of the sealing ring, which is a common problem in mechanical seals at present.

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