Full bore high performance fluorine lined ball valve

Abstract

The invention discloses a full-bore high-performance fluorine-lined ball valve, comprising a valve body and a side shell abutting on the opening of the valve body, the valve body cavity is sleeved with a valve core, the side shell, the valve body and the valve core side wall A fluorine lining layer is attached and abutted on the top, the inner side of the fluorine lining layer is fixedly connected with a dovetail tenon, the side shell, the valve body and the notch on the side wall of the valve core are clamped with the dovetail tenon, and the valve core slides inside Two sleeves are connected, the bottom end of the turntable is fixedly connected with a main shaft, and the bottom end of the main shaft is fixedly connected with a transmission gear. In the present invention, the dovetail tenon plug-in anti-dropping structure is adopted to realize the mutual bonding and connection of the fluorine lining layer, the side shell, the valve body and the valve core, so as to reduce the possibility of loosening and falling off of the fluorine lining layer after the connection is realized. It adopts the sleeve abutting and pressing structure during sliding, which realizes the clamping and limiting through the two sleeves and the two sleeve grooves, so as to reduce the possibility of the fluorine lining layer being separated after long-term use.

Description

technical field [0001] The invention belongs to the technical field of ball valve equipment, in particular to a full-bore high-performance fluorine-lined ball valve. Background technique [0002] Fluorine-lined ball valve and rubber-lined ball valve, as a component used to realize on-off and flow control of pipeline system, have been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower, etc. In the known ball valve technology , Its sealing form mostly adopts sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the limitation of structural characteristics, it is not suitable for industries such as high temperature resistance, high pressure, corrosion resistance and wear resistance. [0003] Fluorine-lined ball valves are widely used in modern times. However, the existing fluorine-lined ball valves often have the following shortcomings when they are used. When the fluorine layer is bonded to the inner w...

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Problems solved by technology

[0002] Fluorine-lined ball valves and rubber-lined ball valves, as a component used to realize on-off and flow control of pipeline systems, have been widely used in many fields such as petroleum, chemical industry, metallurgy, and hydropower. Among the known ball valve technologies , the sealing form mostly adopts the sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc., due to the limitation of structural characteristics, it is not suitable for high temperature resistance, high pressure, corrosion resistance, wear resistance and other industries

[0003] Fluorine-lined ball valves are widely used in modern times. However, the existing fluorine-lined ball valves often have the following shortcomings when they are used. When the fluorine layer is bonded to the inner wall of the ball valve or the assembly structure is difficult to ensure a stable blue connection at each position, it is easy to cause the fluorine-lined layer to loosen and fall off under the long-term normal open state

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