Ball valve with filter screen

Abstract

The invention discloses a ball valve with a filter screen, wherein a ball body is mounted in a left valve body and a right valve body; one end of a valve rod is inserted into a groove of the ball body; a locating block is mounted between the valve rod and the right valve body; the other end of the valve rod is provided with a spanner; a retainer ring for a shaft is mounted between the spanner and the end surface of the right valve body; sealing rings are mounted at places where the ball body is combined with the left valve body and the right valve body respectively; the filter screen which is the same with the ball body in structure and shape and is tangent to the ball body is arranged outside the ball body in a sleeving manner; the lower half part of the right valve body is provided with a circular hole; the circular hole is perpendicular to the midline of the spanner and further passes through the ball center line of the ball body; the circular hole runs through the lower half part of the right valve body. When the ball valve is fully opened, impurities are filtered, and the purity of delivered gas is improved. When the ball valve is closed, the impurities in the delivered gas are discharged from the circular hole in the lower half part of the right valve body along a through hole in the ball body under the action of gravity force. The ball valve with the filter screen is used for reducing the impurities in the delivered gas by a pipeline and discharging the impurities; a plurality of ball valves can be used in a sectional manner along the gas delivery pipeline; the effect of filtering the impurities in a multi-layer manner is realized by adopting different density of the filter screen.

Description

technical field [0001] The invention relates to a ball valve, in particular to a ball valve with a filter net. Background technique [0002] Ball valve refers to the valve in which the valve core (ball) of the opening and closing part is driven by the valve stem and rotates around the axis of the ball valve. It is mainly used to cut off or connect the medium in the pipeline, and it can also be used for the regulation and control of the fluid. Among them, there is a strong shear between the V-shaped ball core of the hard-sealed V-type ball valve and the metal valve seat of hard-facing carbide. Shear force, especially suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of the medium on the pipeline, but also close any channel and connect the other two channels. This type of ball valve should generally be installed horizontally in the pipeline. Ball val...

AI Technical Summary

Problems solved by technology

However, for pipeline gas transportation, due to the corrosion of the inner wall of the pipeline, the material of the pipe wall falls off, which makes the originally high-purity gas transported contain a large amount of impurities, which cannot guarantee the purity of the transported gas, and even affects normal industrial use in serious cases. and home use

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