A ball valve that can be opened with low torque
A low-torque, ball valve technology, applied in valve details, valve devices, valve operation/release devices, etc., can solve problems such as difficulty in opening ball valves and high friction, reducing long-term erosion, prolonging service life, shaft Toward the mobile flexible effect
Active Publication Date: 2019-11-08
北京众博达石油科技有限公司
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- Description
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Problems solved by technology
[0006] The purpose of the present invention is to provide a ball valve that can be opened with low torque to solve the technical problem that the ball valve is difficult to open due to the high friction between the valve seat and the ball of the existing high-pressure ball valve shut-off device
Method used
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Embodiment Construction
[0036] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0037] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" etc. is Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood To limit the present invention. In addition, the terms "firs...
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The invention relates to the field of valves, in particular to a ball valve capable of being opened at the low torque. The ball valve capable of being opened at the low torque comprises a valve body provided with an inner cavity, a ball body arranged in the inner cavity and a driving device used for driving the ball body to rotate. A fluid inlet and / or a fluid outlet of the inner cavity are / is provided with main valve seats, the main valve seats are slidably connected with the valve body in a sealed mode, and the main valve seats are kept to be in sealed contact with the ball body. According to the ball valve capable of being opened at the low torque, the valve can be opened and closed only through the small torque, compared with an existing ball valve, the ball valve can save more time and labor in the opening process, and the valve can be opened only through the extremely low torque; and meanwhile, through the short opening time, the production efficiency is improved, long-time erosion of the position where the ball body penetrates through a circulation channel is reduced in the opening process, the product airtightness is improved, and the service life is prolonged.
Description
technical field [0001] The invention relates to the field of valves, in particular to a ball valve that can be opened with low torque. Background technique [0002] High-pressure ball valve emergency cut-off device is widely used in petroleum, natural gas and other industries. Because of its small size, light weight, and small flow resistance, it is often used as the preferred equipment by the user. At present, the high-pressure ball valve cut-off devices used in the wellhead of natural gas wells have large opening torque and long opening time, which seriously affect the use effect of output and increase the maintenance cost of users; therefore, it is necessary to improve the above defects and improve the stability of the product Safety and reliability have become urgent problems to be solved. According to the needs of the production status of gas wells in gas fields, research on remote-controlled electric emergency shut-off ball valves has been carried out in this field. ...
Claims
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IPC IPC(8): F16K5/06F16K5/20F16K31/524F16K31/54F16K5/08
CPCF16K5/06F16K5/0647F16K5/08F16K5/201F16K31/52458F16K31/54
Inventor 张帆王娟孙钢峰康昌革马斌
Owner 北京众博达石油科技有限公司