An ultra-low temperature top-entry ball valve

Abstract

The invention provides an ultralow temperature top mounted ball valve. The ultralow temperature top mounted ball valve comprises a valve body, a valve cover arranged at the top end of the valve body,and a rotary mechanism arranged at the top end of the valve cover, wherein the valve body is internally and rotationally provided with a first valve core and a second valve core, the first valve coreand the second valve core are both connected with the rotary mechanism through a connection mechanism, and the top end of the first valve core and the top end of the second valve core are provided with a first inserting connection groove and a second inserting connection grove correspondingly; the connection mechanism comprises two inserting connection blocks and two rotary rods, and the two inserting connection blocks are arranged in the first inserting connection groove and the second inserting connection groove correspondingly; the two rotary rods are fixedly connected with the two inserting connection blocks correspondingly; the rotary mechanism comprises a base, the top end of the base is provided with a motor and two rotary frames, and the two rotary frames are fixedly connected withthe two rotary rods correspondingly; and the motor is connected with a rotary disc, and the rotary disc is used for driving the rotary rods to rotate through the rotary frames. According to the ultralow temperature top mounted ball valve, by controlling the first valve core and the second valve core to rotate at the same time, the double ball valve closing effect is achieved, and the sealing performance of the ball valve can be improved.

Description

technical field [0001] The invention relates to the technical field of ball valves, in particular to an ultra-low temperature top-mounted ball valve. Background technique [0002] The top-mounted ball valve is a valve that controls the flow rate. At present, ball valves are used in various conveying pipelines. On important pipelines, such as ball valves installed in ultra-low temperature pipeline systems, the passage of the controlled fluid needs to be more strictly controlled. Or not, if the controlled fluid still passes after the ball valve is closed, it will waste resources at least, and cause serious accidents at worst. Therefore, the present invention proposes an ultra-low temperature top-mounted ball valve. Rotate at the same time to achieve the effect of double closing ball valves to solve the above problems. Contents of the invention [0003] The invention provides an ultra-low temperature top-mounted ball valve, which is used to simultaneously rotate and close th...

AI Technical Summary

Problems solved by technology

[0002] The top-mounted ball valve is a valve that controls the flow rate. At present, ball valves are used in various conveying pipelines. On important pipelines, such as ball valves installed in ultra-low temperature pipeline systems, the passage of the controlled fluid needs to be more strictly controlled. Or not, if the controlled fluid still passes after the ball valve is closed, it will waste resources at least, and cause serious accidents at worst. Therefore, the present invention proposes an ultra-low temperature top-mounted ball valve. Simultaneous rotation to achieve the effect of double closing ball valves to solve the above problems

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