Plug valve with split type plug core structure

Abstract

The invention discloses a plug valve with a split type plug core structure. The plug valve comprises a valve body and a plug core arranged in the valve body, wherein the plug core comprises an upper plug core and a lower plug core; a rotary plate insertion groove is formed in the end surface in contact with a valve body channel of the upper plug core and is distributed by passing through the diameter of the end surface of the upper plug core; a rotary closing straight plate is arranged on the end surface in contact with the valve body channel of the lower plug core and is inserted into the rotary plate insertion groove. According to the plug valve with the split type plug core structure, the conventional integrated valve core is replaced by a split type structure; the rotary closing straight plate on the lower plug core is used for switching on and off the valve body; when the plug valve is out of work due to serious abrasion caused by long-term usage of the plug valve, the whole plugvalve does not need to be replaced; the plug valve can be used as a newly replaced plug valve by only replacing the rotary closing straight plate through an end cover at the bottom of the valve body;the service life of the plug valve is greatly prolonged; the usage performance of the plug valve is improved; and production and maintenance costs are reduced.

Description

technical field [0001] The invention relates to a valve, in particular to a plug valve with a split plug core structure. Background technique [0002] The plug valve is a closed or plunger-shaped rotary valve. By rotating 90 degrees, the channel port on the valve plug is connected or separated from the channel port on the valve body, and a valve that can be opened or closed is realized. The shape of the valve plug Can be cylindrical or conical. The plug valve is a kind of quick-switch straight-through valve, which uses the plug body with a through hole in the middle as the valve of the opening and closing parts, and the plug body rotates with the valve stem to realize the opening and closing action. [0003] The plug valve is mainly sealed by the direct contact between the finished metal plug body and the valve body cavity, which is very easy to wear. When the plug body cannot be effectively sealed with the traditional inner cavity after wear, the entire plug valve will fai...

AI Technical Summary

Problems solved by technology

[0003] The plug valve is mainly sealed by the direct contact between the finished metal plug body and the inner cavity of the valve body, which is very easy to wear. When the plug body is worn out and cannot be effectively sealed with the traditional inner cavity, the entire plug valve will fail and cannot be used.

Shorten the service life of the plug valve and increase the cost of production and maintenance

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