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Self-compensating soft sealing structure of plug valve

A self-compensating, plug valve technology, used in plugs, valve devices, mechanical equipment and other directions including cut-off devices, can solve problems such as narrow application range and poor sealing, and achieve improved sealing reliability, good sealing, and high promotion value. Effect

Pending Publication Date: 2021-04-30
中国船舶集团有限公司第七零七研究所九江分部
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, in order to solve the technical problems of poor sealing performance and narrow application range of the cylindrical plug valve sealing structure in the prior art, the present invention provides a simple structure, reasonable design, convenient installation, good sealing performance and reliable sealing. Strong plug valve self-compensating soft sealing structure

Method used

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  • Self-compensating soft sealing structure of plug valve
  • Self-compensating soft sealing structure of plug valve
  • Self-compensating soft sealing structure of plug valve

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or positional relationship. Elements must hav...

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Abstract

The invention discloses a self-compensating soft sealing structure of a plug valve. The self-compensating soft sealing structure comprises a plug body, a fixing baffle ring, a floating valve seat and a pressing sealing ring. The plug body is of a cylinder structure, and a liquid through hole is formed in the middle of the plug body in the axial direction of the plug body; a rounded rectangular through hole communicating with the liquid through hole is formed in the circumferential side wall of the plug body; the fixing baffle ring is fixed to one side of the plug body, and a gap is formed between the fixing baffle ring and the rounded rectangular through hole; the floating valve seat is of an annular structure, and is clamped and fixed between the fixing baffle ring and the rounded rectangular through hole, and the end face of one side of the floating valve seat is fit with the circumferential side wall of the plug body in size, and is pressed and attached to the outer side wall of the plug body; and the pressing sealing ring is clamped and fixed between the fixing baffle ring and the floating valve seat. The soft sealing structure is simple, reasonable in design, convenient in installation, good in sealing performance and high in sealing reliability, and the application range of the cylindrical plug valve is effectively widened; and the soft sealing structure has good market application prospects and high popularization value.

Description

technical field [0001] The invention relates to the technical field of valve structures, in particular to a self-compensating soft sealing structure of a plug valve. Background technique [0002] Cylindrical cock valve is a kind of cock valve, its cock has a cylindrical structure, and a rectangular channel is opened in the middle of the cylindrical side wall of the cylindrical cock valve. Since the cylindrical cock is not easy to seal, the fluid medium in the rectangular channel is easy to flow out after the seal is worn. Leakage occurs in the gaps after wear and tear, which makes the existing sealing structure usually only applicable to occasions with low pressure or low sealing requirements, which greatly limits the scope of application of the cylindrical plug valve. [0003] Therefore, it is an urgent problem to be solved by those skilled in the art to provide a self-compensating soft sealing structure of a plug valve with simple structure, reasonable design, convenient i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/18F16K5/04
CPCF16K5/181F16K5/0464F16K5/0471
Inventor 鲁凯义伍来智李勇
Owner 中国船舶集团有限公司第七零七研究所九江分部
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