Two-piece type self-cleaning ball valve adopting floating seal

Abstract

The invention discloses a two-piece type self-cleaning ball valve adopting floating seal, and belongs to the field of ball valves. Self-cleaning of the floating ball valve can be achieved, as a ball body is mounted in a ball body seat, impurities can be prevented from being massively accumulated between the ball body and the inner wall of a valve seat, and the ball body is protected against corrosion of the impurities; and as cleaning scraper blades are arranged on the two sides of the ball body, when the ball body rotates, the impurities settling on the outer surface of the ball body can be scraped off through the cleaning scraper blades, a deformation plate is further arranged on the inner wall of the ball body seat, an arch face is formed on the inner wall of the ball body seat, thus, the probability that the impurities scale on the inner wall of the ball body seat can be greatly reduced, the impurities settling on the deformation plate can be vibrated off through the vibration effect of deformation restoration of the deformation plate, the impurities are taken away by media, thus, self-cleaning of the ball body is achieved, long-time stable work of the ball valve is guaranteed,in addition, cleaning balls similar to lotus leaf surface structures are further arranged in a passageway of the ball body to prevent the impurities from being left, and the self-cleaning effect of the ball valve is further improved.

Description

technical field [0001] The invention relates to the field of ball valves, in particular to a floating and sealed two-piece self-cleaning ball valve. Background technique [0002] Internal thread two-piece ball valve and gate valve belong to the same type of valve, the difference is that its closing part is a sphere, and the sphere rotates around the centerline of the valve body to achieve opening and closing. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. The ball of the ball valve is floating. Under the action of the medium pressure, the ball can produce a certain displacement and press tightly on the sealing surface of the outlet end to ensure the outlet end seal. [0003] Although the floating ball valve is simple and easy to use, impurities are easy to remain inside, especially when the ball valve is closed, some small particles of impurities will be entrained in some fluid media, which will precipitate ...

AI Technical Summary

Problems solved by technology

[0003] Although the floating ball valve is simple and easy to use, impurities are easy to remain inside, especially when the ball valve is closed, some small particles of impurities will be entrained in some fluid media, which will precipitate and settle down when the ball valve is closed. After a long time, a large amount of impurities will be in the Scale on the ball, and then corrode the ball, directly affect the normal use of the ball valve, and impurities are easy to stay in the flow channel of the ball. The current cleaning method needs to disconnect the pipeline for disassembly and cleaning, which consumes manpower, Time and other costs are large

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