Power-assisted pipeline valve

Abstract

The invention relates to a power-assisted pipeline valve which comprises a valve body and a pressure relief assembly, a first sliding groove is formed in the top of the valve body, a sliding sleeve is arranged in the valve body, the two sides of the sliding sleeve are connected with the inner wall of the valve body through first springs, a ball valve assembly is arranged in the sliding sleeve, a valve rod is connected to the ball valve assembly, the valve rod penetrates out of the sliding sleeve and is sleeved with a sliding shell, and the sliding shell is arranged in the first sliding groove. An electric power-assisted mechanism and a rack are arranged on the sliding shell, the electric power-assisted mechanism is connected with the valve rod, a first rotating shaft is arranged on the valve body in a penetrating mode, a fifth gear, a rotating disc and a third spring are sequentially arranged on the first rotating shaft from top to bottom, the fifth gear is meshed with the rack, the rotating disc is connected with the fifth gear through a centrifugal locking mechanism, the third spring is connected with the rotating disc and the valve body, and the pressure relief assembly is arranged on the valve body and connected with the rotating disc. The problems that in the prior art, the manual valve is strenuous to operate for people with small strength, the water hammer control effect is poor, and the service life of the manual valve is seriously affected are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to a power-assisted pipeline valve. Background technique [0002] A large number of liquid delivery pipelines need to be installed in nuclear power plants for production and operation, the most representative of which is water delivery pipelines, and multiple valves need to be installed on the pipelines to control the on-off of water flow transmission. However, most nuclear power plants use manual valves, mainly through manual operation of the valve to control the switch of the valve. However, the following problems exist in the current use process: 1. In order to ensure the sealing of the valve, the relevant connecting parts of the valve are all Tight fit, so when opening and closing the valve, if the strength is small, it often takes a lot of effort, and even needs to find auxiliary tools or helpers to realize the opening and closing of the valve, especially the performance of rela...

AI Technical Summary

Problems solved by technology

However, most nuclear power plants use manual valves, mainly through manual operation of the valve to control the switch of the valve. However, the following problems exist in the current use process: 1. In order to ensure the sealing of the valve, the relevant connecting parts of the valve are all Tight fit, so when opening and closing the valve, if the strength is small, it often takes a lot of effort, and even needs to find auxiliary tools or helpers to realize the opening and closing of the valve, especially the performance of relatively large valves is more obvious; 2 , When the valve is closed suddenly, it is easy to cause the water hammer effect, and the water hammer cannot be effectively alleviated, which seriously affects the service life of the valve, and may even directly cause damage to the valve and the pipeline

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