Automatic control ball valve with in-advance pressure relief function

Abstract

The invention relates to the technical field of valve production, in particular to an automatic control ball valve with an in-advance pressure relief function. The automatic control ball valve comprises a ball assembly, a valve assembly, a driving device and a control device. The ball assembly comprises an outer ball and an inner ball which are in rotating fit. The valve assembly comprises a middle valve and two connecting valve pipes. Valve seats are arranged at the ends, close to the middle valve, of the two connecting valve pipes correspondingly. The driving device comprises a rotating mechanism used for driving the ball assembly to rotate and a limiting mechanism used for limiting the ball assembly. The control device comprises a controller and a sensor assembly electrically connectedwith the controller. The automatic control ball valve has the beneficial effects that the problem of large friction force during in-advance pressure relief can be solved, opening and closing of the automatic control ball valve are achieved, operation of workers is omitted, and the opening and closing efficiency of the ball valve is improved.

Description

technical field [0001] The invention relates to the technical field of valve production, in particular to an automatic control ball valve with a pre-pressure relief function. Background technique [0002] The ball valve is a valve that rotates around the axis of the ball valve and can be used for fluid regulation and control. Since the seal of the hard-sealed ball valve is manually ground, it cannot be used until the valve core and the sealing ring are completely matched. The sealing performance is reliable. When the ball valve is in use, when the ball valve is closed, the pressure difference between the two sides of the ball valve is relatively large, and the resistance is relatively large when the ball valve is pulled to turn it from the closed state to the conductive state. It is difficult for employees to use the ball valve. larger. [0003] In order to solve the above problems, the patent No. CN201721376515.7 is disclosed, which includes a ball valve and a pre-pressure...

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Problems solved by technology

[0004] The above scheme can reduce the torque of the ball valve to a certain extent, which is convenient for the staff to work. Since the rotating rocker drives the second bevel gear to drive the first bevel gear to rotate and drive the adjustment member to rotate, there is no similar ball between the adjustment member and the valve seat. Although the sliding parts such as the ball valve reduce the pressure difference between the two ends of the ball valve, the friction between the adjustment part and the valve seat is relatively large, which still makes the ball valve difficult to open, and it is still operated manually, which takes up labor costs.

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