Valve jamming prevention assembly for fault maintenance of steam turbine valve

Abstract

The invention relates to the technical field of steam turbine valves, and discloses a valve jamming prevention assembly for fault maintenance of a steam turbine valve. The valve jamming prevention assembly comprises a jamming prevention plate, wherein a valve port is formed in the center of the inner side of the jamming prevention plate; a pneumatic wheel is fixedly connected to the outer side of the valve port; and a connecting block is movably connected to the outer side of the pneumatic wheel. According to the valve jamming prevention assembly for fault maintenance of the steam turbine valve, an elastic column is electrified to move through electric energy converted from kinetic energy of gas, the elastic column drives a movable folding rod to move, the movable folding rod drives a transverse toothed plate to transversely reciprocate at the top of a bevel gear, a negative pressure pushing bin drives descaling liquid in an inner liquid bin to be sucked into the negative pressure pushing bin, an inclined piston pushes the descaling liquid to be discharged into an atomization rod, the atomized descaling liquid is in contact with dirt in the valve through flowing of the gas, and then the dirt in the valve is eliminated, so that the jamming phenomenon of the valve is eliminated.

Description

technical field [0001] The invention relates to the technical field of steam turbine valves, in particular to a valve jam-preventing assembly for steam turbine valve fault maintenance. Background technique [0002] In the process of the development of power equipment in today's society, more and more power equipment appears in people's life and work. Therefore, in order to meet the increasing demand for power equipment, steam turbines emerged as the times require. Steam turbines are the main components of modern thermal power plants. Equipment, also used in metallurgical industry, chemical industry, ship power plant. [0003] Whether the steam turbine valve can work normally is related to the normal operation of the whole unit. Once the valve fails, it needs to be dealt with immediately to avoid the danger of shutdown. The reason for the failure of the steam turbine valve may be that the valve can be opened normally and controlled stably below a certain valve position, but ...

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a steam turbine valve fault maintenance avoiding valve jamming assembly, which has the advantages of less jamming operation and reduced main steam valve opening, and solves the problems of excessive jamming operation and main steam valve opening. The problem of increased

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