Special all-welded ball valve for heat

Abstract

The invention discloses a special all-welded ball valve for heat. The special all-welded ball valve comprises a main pipe body, a first asphalt coating layer, guide rails, a mounting plate and mounting blocks. A first pipe body is installed at the intermediate position of one side of the main pipe body, and the first pipe body is matched with the first asphalt coating layer to form an anti-corrosion structure. A second pipe body is installed at the intermediate position of the side, away from the first pipe body, of the main pipe body, and the second pipe body is matched with a third asphalt coating layer to form an anti-corrosion structure. A first twisting pipe valve is installed at the intermediate position of one end of the main pipe body, and a second baffle matched with the second pipe body is mounted on the other side in the first twisting pipe valve. A fourth asphalt coating layer is evenly disposed on the inner side wall of a second tightening bolt, and the second tightening bolt is matched with the fourth asphalt coating layer to form an anti-corrosion structure, so that the special all-welded ball valve strengthens the anti-corrosion property of the pipe bodies through the asphalt coating layers, and the service life of the special all-welded ball valve is prolonged.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a full-welded ball valve for thermal power. Background technique [0002] Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids, among which the hard-sealed V-shaped ball valve has a strong shear force between its V-shaped ball core and the metal valve seat of surfacing welding carbide, and is especially suitable for fibers and tiny solid particles. etc. medium. The multi-way ball valve can not only flexibly control the confluence, diversion and flow direction switching of media on the pipeline. [0003] The existing fully welded ball valve for thermal power does not have the function of anti-corrosion. When in use, it is easy to rust, and the cost is high. It is inconvenient to disassemble and clean the inside of the pipe body during use. The service...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a fully welded ball valve for thermal power, to solve the problem that the existing fully welded ball valve for thermal power proposed in the above background technology does not have the function of anti-corrosion. When it is used, it is easy to rust and the cost is high. It is inconvenient to disassemble and clean the inside of the pipe body, the service life is short and the flexibility is poor

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