Mechanical sealing device

Abstract

The invention belongs to the technical field of mechanical sealing, and discloses a mechanical sealing device. The device comprises an upper moving ring, an upper static ring, a lower moving ring, a lower static ring and a ring seat, the upper moving ring is matched with the upper static ring, and the upper moving ring rotates relative to the upper static ring to form first end face sealing; the lower moving ring is matched with the lower static ring, and the lower moving ring rotates relative to the lower static ring to form second end face sealing; a flow channel is arranged in the ring seat, the flow channel is communicated with the first end face seal and the second end face seal and used for conveying lubricating media, a clamping sleeve is arranged in the ring seat, and a cooling flow channel is arranged in the clamping sleeve and used for circularly conveying cooling liquid. By means of the mechanical sealing device, the sealing effect of the mechanical sealing device is improved, and the mechanical sealing device is especially suitable for sealing of a high-cleanliness sterile fermentation tank environment; meanwhile, the lubricating effect and the cooling effect of the rotating part in the sealing device are further improved; in addition, the sealing function and the lubricating function are unified, and the whole device is more compact in structure.

Description

technical field [0001] The invention relates to the technical field of mechanical seals, in particular to a mechanical seal device. Background technique [0002] Fermentation tanks are mainly used for the fermentation of microorganisms in industry. Fermentation tanks need a sterile and pollution-free environment under the conditions of empty consumption and actual consumption. During the stirring operation inside the fermentor, a sealing device needs to be provided in order to prevent the internal environment of the tank from being polluted. [0003] The existing sealing device generally adopts a single-end mechanical seal, and the sealing effect is general, especially the fermentation environment of microorganisms in the fermenter requires high cleanliness and sterility, and the single-end mechanical seal is not enough to meet the above requirements. At the same time, in the existing fermentation tank equipment, it is difficult to unify sealing and lubrication, so that the...

AI Technical Summary

Problems solved by technology

[0003] Existing sealing devices generally adopt single-end mechanical seals, and the sealing effect is average, especially the fermentation environment of microorganisms inside the fermenter requires high cleanliness and sterility, and single-end mechanical seals are not enough to meet the above requirements

At the same time, in the existing fermenter equipment, the sealing and lubrication are difficult to unify, so that the sealing device needs an independent lubrication system, resulting in a complicated structure of the whole device

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