Ball valve with under-pressure detection

Abstract

The invention discloses a ball valve with under-pressure detection. The ball valve comprises a valve body and external connecting pipes, wherein fixing plates are welded to the inner surfaces of the upper side and the lower side of the middle part of the inner part of the valve body in an embedding manner; a valve ball is mounted between the fixing plates; baffle plates are symmetrically mounted on two sides of the valve ball; a transmission shaft is correspondingly welded to the upper end and the lower end of the valve ball; a pressure detecting device is mounted at the lower end of the transmission shaft; a fixed ring is welded to the middle part of the upper end of the valve body; a handle is mounted at the upper end of the fixed ring; a limiting block is mounted on the left side of a connecting ring of the handle; a spacer corresponding to the fixed ring is mounted at the upper end of the left side of the handle; a nut is mounted at the upper end of the spacer; each threaded surface is mounted in the corresponding external connecting pipe; each sealing ring is mounted on the inner side section of the corresponding external connecting pipe; and each protective device is fixedlymounted on a connecting surface on the other side of the corresponding sealing ring. The ball valve with the under-pressure detection disclosed by the invention is stable in structure, good in sealingperformance, and stable in pressure detection; and during damaging of the ball valve with under-pressure detection, disassembling and maintaining are convenient.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to a ball valve with pressure detection. Background technique [0002] The ball valve is a valve that uses a ball with a circular channel as the opening and closing part. The ball rotates with the valve stem to realize the opening and closing action of the valve. It is widely used in petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, Municipal, steel and other industries occupy a pivotal position in the national economy. Ball valves are mainly used to open and close pipelines and equipment media. They are suitable for frequent operations. They are quick to open and close, light in weight, small in fluid resistance, relatively small in size, and light in weight. Good sealing performance, not limited by the installation direction, the flow direction of the medium can be arbitrary, no vibration, low noise, the...

AI Technical Summary

Problems solved by technology

[0003] When there are impurities in the ball valve pipeline, it is easy to block and the valve cannot be opened, but the current pressure detection device is not stable enough, and the detection process is prone to position deviation, resulting in inaccurate detection results, and it is not easy to disassemble and repair when the ball valve is damaged. Solve this problem and design a ball valve with pressure detection

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