Anti-scouring ball valve
An anti-scouring and ball valve technology, which is applied in the direction of valve details, valve devices, valve operation/release devices, etc., can solve problems such as valve leakage, large scouring impact on the surface of the valve seat, and easy damage to the valve seat, so as to prevent impact and use The effect of long life and simple structure
Inactive Publication Date: 2021-01-01
符鹏
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Problems solved by technology
In the process of opening and closing the ball of the existing ball valve, the valve seat in the ball valve is easily impacted by the flowing medium in the ball valve, which will cause part of the valve seat to break away from the surface of the ball, and the medium in the inlet channel of the ball valve will pass through the gap between the valve seat and the surface of the ball. The gap flows to the outlet channel of the ball valve, especially the high-pressure and high-speed medium will have a large impact on the surface of the valve seat, and it is easier to damage the valve seat, resulting in valve leakage and affecting the service life
Method used
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[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] It should be noted that when a component is said to be "mounted on" another component, it may be directly on the other component or there may be an intervening component. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. When a component is said to be "fixed" to another component, it may be directly fixed to the other component or there may ...
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The invention relates to an anti-scouring ball valve. The ball valve comprises a valve body, an inlet pipe, an outlet pipe, a first valve seat, a second valve seat, a valve ball, a sealing base, a plug valve core, a cover plate, a connecting ball and a rotary rod. The anti-scouring ball valve has the advantages that the ball valve is provided with the valve ball and the plug valve core, and when the valve ball is turned from a closing position to an opening position, the valve ball can be controlled to rotate to the opening position firstly, and then the plug valve core is controlled to be opened, so that media are prevented from starting to flow in the rotating process of the valve ball, and the media are prevented from impacting the edge sealing positions of the valve seats; and when thevalve ball is turned to the closing position from the opening position, the plug valve core can be closed firstly, and then the valve ball is controlled to rotate to the closing position, so that themedia can be prevented from starting to flow in the rotating process of the valve ball, and the media are prevented from impacting the edge sealing positions of the valve seats. The ball valve is simple in structure and long in service life.
Description
technical field [0001] The invention relates to the technical field of pipeline valves, in particular to an anti-scouring ball valve. Background technique [0002] Ball valves are widely used in petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, municipal, steel and other industries, and occupy a pivotal position in the national economy. In the process of opening and closing the ball of the existing ball valve, the valve seat in the ball valve is easily impacted by the flowing medium in the ball valve, which will cause part of the valve seat to break away from the surface of the ball, and the medium in the inlet channel of the ball valve will pass through the gap between the valve seat and the surface of the ball. The gap flows to the outlet channel of the ball valve, especially the high-pressure and high-speed medium will have a large impact on the surface of the valve seat, and it is easier to da...
Claims
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IPC IPC(8): F16K5/06F16K5/08F16K31/60F16K47/02
CPCF16K5/06F16K5/08F16K31/60F16K47/02
Inventor 符鹏吴春保魏新
Owner 符鹏