High-pressure hydraulic ball valve easy to open

Abstract

The invention relates to the field of control valves, in particular to a high-pressure hydraulic ball valve easy to open. The high-pressure hydraulic ball valve easy to open comprises a ball valve anda pressure pre-relieving mechanism; the ball valve comprises a valve body, and a ball body arranged in the valve body; the valve body comprises a first valve pipe for accommodating the pressure pre-relieving mechanism, a second valve pipe for accommodating the ball body, and a third valve pipe; two ends of the second valve pipe communicate with the first valve pipe and the third valve pipe; axesof the first valve pipe, the second valve pipe and the third valve pipe are overlapped; the pressure pre-relieving mechanism comprises a valve base, and a transmission mechanism matched with the valvebase; the valve base is annular; the valve base is provided with multiple first through holes distributed in the peripheral direction of the valve base by equal angle differences; and the transmission mechanism comprises an adjusting piece for adjusting connection and disconnection of all the through holes, and a driving module for driving the adjusting piece to rotate along the axis of the valvebase. When the ball valve is needed to convert from a closing state to a conducting state, the pressure pre-relieving mechanism reduces the pressure in the ball valve beforehand, and the torque needed by opening is reduced, so that workers are convenient to open the ball valve.

Description

technical field [0001] The invention relates to the field of control valves, in particular to an easy-to-open high-pressure hydraulic ball valve. Background technique [0002] The ball valve is a valve whose opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can be used for fluid adjustment and control. Among them, the V-shaped ball core of the hard-sealed V-shaped ball valve and the hard-facing hard alloy metal There is a strong shear force between the valve seats, especially suitable for media containing fibers, tiny solid particles, etc., and the multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of media on the pipeline, but also Either channel can be closed and the other two channels can be connected. [0003] When the ball valve is in use, when the ball valve is closed, the pressure inside the ball valve is relatively high. It is difficult for the ball va...

AI Technical Summary

Problems solved by technology

[0003] When the ball valve is in use, when the ball valve is closed, the pressure inside the ball valve is relatively high. It is difficult for the ball valve to turn from the closed state to the conductive state, and the required torque is large, which increases the difficulty of the staff using the ball valve.

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