A high-voltage power station gate valve

Abstract

The invention discloses a high-voltage power station gate valve. The gate valve comprises a valve body and a lubricating mechanism, wherein the valve body is provided with a left valve channel and a right valve channel which are connected with a pipeline, and the upper end of the middle between the left valve channel and the right valve channel is provided with a through hole cavity. The upper endof the valve body is provided with a filler mechanism which corresponds to a valve rod, wherein the filler mechanism comprises a filler cylinder, a sealing filler piece and a filler pressing cover, the inner hole of the filler pressing cover is provided with internal threads, and the internal threads correspond to external threads on the valve rod. The upper end face of the filler pressing coveris provided with a first blind hole and a second blind hole, wherein the first blind hole is formed downwards to be close to the lower end face of the filler pressing cover. According to the high-voltage power station gate valve, through structure improvement of the filler pressing cover, the first blind hole, the second blind hole, a first flat-placing hole, a vertical groove and a second flat-placing hole are formed in the filler pressing cover, and the lubricating mechanism is arranged so as to perform lubrication on the working section of the valve rod, which is convenient for the valve rod to be opened, in this way, the valve rod is easy to rotate when in use, and the normal use effect of the gate valve is maintained.

Description

technical field [0001] The invention relates to the technical field of valves, and more specifically, the invention relates to a high-voltage power station gate valve. Background technique [0002] Power station gate valves are also called special valves for power stations, which are mainly used in the pipelines of various systems in thermal power plants to cut off or connect pipeline media. Applicable media: water, steam and other non-corrosive media. Compared with other valve products, power station valves are characterized by high temperature and high pressure, unique self-sealing design, the higher the pressure, the more reliable the seal, due to the special performance and technical characteristics and working conditions The product has also formed characteristics that cannot be replaced by other products. [0003] The size of the gate valve is large, it needs a certain space to open, and the opening and closing time is long. When the gate valve is installed outdoors, ...

AI Technical Summary

Problems solved by technology

[0003] The size of the gate valve is large, it needs a certain space to open, and the opening and closing time is long. When the gate valve is installed outdoors, due to the outdoor weather such as sunlight, rain and wind, the threaded column of the valve stem is often damaged and rusted, thus As a result, it is difficult to rotate the gate valve during use, which in turn affects the normal use of the gate valve. However, if the gate valve is not rotated in time, there may be certain safety hazards and may cause certain economic losses.

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