Dry-type mechanical sealing device of ultra-high-speed homogenizer

Abstract

The invention provides a dry-type mechanical sealing device of an ultra-high-speed homogenizer. The dry-type mechanical sealing device of the ultra-high-speed homogenizer comprises a movable ring assembly, an elastic compensation assembly and an auxiliary sealing assembly; the elastic compensation assembly comprises a static ring, a spring, a spring seat and an air cushion assembly; the spring seat is provided with a first annular inner embedding groove, and the tail end of the static ring is embedded into the first annular inner embedding groove; a second annular inner embedding groove is formed in the tail end of the static ring, and the spring is embedded into the second annular inner embedding groove and is fixedly connected with the spring seat; the air cushion assembly comprises a plurality of flow guide grooves, a radial hole plate and an adapter ring which are annularly distributed in the static ring; and an air source flows to the front end face of the static ring through theradial hole plate and the flow guide groove through the adapter. The air flow is generated through the air cushion assembly, and an annular air cushion is generated on the sealing surface to enable sealing friction pairs to be separated, so that the leakage of nano powder is blocked, no contact abrasion exists between the movable ring and the static ring, and the service life is long.

Description

technical field [0001] The invention relates to a dry mechanical seal device of an ultra-high-speed homogenizer. Background technique [0002] A mechanical seal is a shaft seal for rotating machinery, commonly used in equipment such as centrifugal pumps, centrifuges, reactors, and compressors. The mechanical seal device is composed of a pair or several pairs of sealing surfaces that are perpendicular to the rotating shaft for relative sliding. Under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal, it is formed to prevent fluid leakage. s installation. [0003] The high-pressure homogenizer uses the strong shearing force and grinding force generated by the high-pressure fluid to produce shearing and grinding effects on the material to achieve the purpose of homogenization. The medium in the ultra-high-speed homogenizer is nano-scale powder. When the medium is rotated at high speed...

AI Technical Summary

Problems solved by technology

The medium in the ultra-high-speed homogenizer is nano-scale powder. When the medium is rotated at high speed, once the medium enters the sealing surface and the sealing surface is rubbed, it is easy to catch fire. Therefore, the traditional mechanical seal device is difficult to apply in the high-speed homogenizer.

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