Ball valve with proximity switch

Abstract

A ball valve with a proximity switch belongs to the technical field of ball valves, comprising a valve body, a valve core, a valve stem and a handle. The ball valve is characterized in that: the valve body is provided with a proximity switch; one of the structures is that the proximity switch is arranged at the position of the ball valve and the position is directly faced by the end of the handle when the ball valve is opened or closed; the other structure is that the proximity switch relation is an inductance type metal proximity switch of thread cylinder shape. The valve body is provided with the proximity switch, so the invention facilitates the ball valve operated by pulling the handle manually to realize electrical interlocking with relevant equipments via the proximity switch whether in open state or closed state, and prevents material handling pipe from industrial accidents, and the ball valve has convenient operation and reliable running; in addition, compared with the electric valve, the ball valve has simple structure and low construction cost.

Description

technical field [0001] The invention belongs to the technical field of ball valves, in particular to a ball valve equipped with a proximity switch. Background technique [0002] In the production process of the chemical and food industries, the pipelines for conveying materials often need to be cleaned, especially in the food industry with intermittent production every day, the pipelines must be cleaned almost every day at the end of production. Sewage or waste water generated by cleaning pipes is discharged through sewage pipes. The sewage pipe is connected to the pipeline for conveying materials through a three-way joint, a ball valve. During the production process, the above-mentioned ball valve is closed, and the pipeline for conveying materials and the sewage pipe are not connected to each other; when the production stops, the pipeline for conveying materials has no material to convey, and when the pipeline for conveying materials is cleaned, the above-mentioned ball v...

AI Technical Summary

Problems solved by technology

Because the ball valve is operated by manually pulling the handle of the ball valve, there is no electric control function, and the electrical interlock between the upper and lower processes cannot be realized. Therefore, once the opened ball valve is forgotten to close, and the production program starts, the material is transported from the pipeline that transports the material. If it is continuously transported, the materials will be continuously discharged from the sewage pipes. Such a production accident will not only waste a lot of raw materials, but also the raw materials discharged from the sewage pipes will cause serious pollution to the environment.

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