High pressure anti-cavitation cut off ball valve with noise reduction function

Abstract

The invention discloses a high pressure anti-cavitation cut off ball valve with a noise reduction function and belongs to pipeline control valves. According to the high pressure anti-cavitation cut off ball valve with the noise reduction function, the technical problems to be solved are that the ball valve cannot reduce pressure, reduce flow velocity, control noise and regulating performance is poor. An adoptive technical proposal is that the structure comprises a main valve body, a vice valve body, a valve seat, a valve rod and a ball body. The high pressure anti-cavitation cut off ball valvewith the noise reduction function has the characteristics that the vice valve body is installed on the main valve body, the valve seat is installed on a valve body which is consist of the main valvebody and the vice valve body, the ball body is installed in the valve seat and the valve rod is fixedly connected with a ball body; a low pressure fluid outlet is formed in the main valve body, a highpressure fluid inlet is formed in the vice valve body, a through hole I is formed in the ball body, the high pressure fluid inlet, the through hole I and the low pressure fluid outlet are connected in sequence; the through hole I of the ball body is internally provided with a plurality of laminations which are evenly arrayed in a laminating state and a through hole II is installed between each layer of the laminations; grooves are formed in the side walls of the laminations and the grooves and the through hole II are connected in a rectangular shape or in a sawtooth shape.

Description

technical field [0001] The invention relates to a pipeline control valve, in particular to a high-pressure anti-cavitation cut-off ball valve capable of reducing noise. Background technique [0002] Ball valves are widely used in coal chemical, petrochemical, iron and steel, metallurgy, air separation and other industries due to their characteristics of small flow resistance, fast switching, good sealing performance, long service life, and convenient air control and electric control. [0003] However, the ball valve has the characteristics of large flow capacity and rapid switching, which may easily cause problems of high noise and strong vibration during the opening and closing process of the ball valve, especially under the working condition of high pressure difference. During the opening and closing process of the ball valve, the pressure difference on both sides of the valve is very large, and the fluid velocity is very high. When the fluid passes through the flow channe...

AI Technical Summary

Problems solved by technology

[0005] The technical task of the present invention is to provide a high-pressure anti-cavitation cut-off ball valve capable of reducing noise, so as to solve the problems that the ball valve cannot reduce pressure, reduce flow rate, control noise and poor adjustment performance

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