Full-closed type double-ball type interlocking separation valve

Abstract

The invention provides a full-closed type double-ball type interlocking separation valve which is valve equipment capable of effectively separating toxic, harmful, combustible, explosive and radioactive gas. The full-closed type double-ball type interlocking separation valve is suitable for industries of metallurgy, electric power, chemical industry, municipal administration, environmental friendliness, fuel gas and the like. In order to overcome the problems of a floating and hanging straight-line transversely-inserted type horizontal movable opening / closing switching mechanism with a valve body which has a framework box type structure and a valve plate which has a flat plate bearing structure of the existing separation valve technology that the weight is great, the volume is large, the occupied pipeline space position is large, a process pipeline is not easy to optimize, the bearing pressure is low, the rigidity of a main body is small, the strength is low, the gravity center of the valve deviates, the stress is not uniform, the walking is not stable, the clamping is easy to generate, the route is long, the opening and the closing are slow and the limitation flexibility has defects and disadvantages. The double-ball type interlocking separation valve is composed of a double-ball valve plate overturning mechanism, an interlocking pressure-balancing mechanism, a spherical valve body, a replacing device, a dirt discharging device, a cooling system, a spherical valve plate clamping mechanism, a blowing device and a diffusing device. The full-closed type double-ball type interlocking separation valve has the advantages of high performance, high parameters, multiple functions, low cost, reliable operability and the like.

Description

technical field [0001] The invention relates to a valve device for controlling the gas medium in pipelines, especially for the control and partition of poisonous, harmful, flammable, explosive and radioactive gases. Suitable for metallurgy, electric power, chemical industry, municipal, environmental protection, gas and other industries. Background technique [0002] At present, the technology of controlling and isolating pipeline gas at home and abroad, especially the valve equipment for controlling and isolating toxic, harmful, flammable, explosive and radioactive gas media, is still in the 1980s. Although some patented technologies have been partially improved over the years, there is no substantial change in the internal and external structural design. There are poor performance, low parameters, poor operability, poor safety, polluting the environment, difficult maintenance, non-standard manufacturing, poor workmanship, difficult to guarantee product quality, high engine...

AI Technical Summary

Problems solved by technology

The structure of this technology is large in size, heavy in weight, large in cross-sectional area, occupies a large space in the pipeline, has low bearing pressure, small rigidity of the main body, low strength, offset center of gravity of the valve plate, uneven driving force, unstable walking, and easy occurrence of jamming. Resistance, long stroke, slow opening and closing, limit is easy to fail, and is limited by the installation position of the pipeline, it is not easy to optimize the design of the process pipeline

Due to the above-mentioned defects, the application of closed control block valve technology is restricted, and it is difficult to adapt to the needs of modern industrial development.

Open block valve technology, see patent application number, floating valve plate open blind plate valve (200620071452.X), a vertical glasses valve (200820215512.X), electric push rod flap valve (201020221082.X), When the switch is closed or the sealing pair leaks, the gas medium in the pipeline leaks directly to the outside, which is easy to cause accidents, poor safety, and pollutes the environment. Over the years, accidents have continued to occur

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