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Design of Butterfly Valve Disk to Minimize Interference at Opening and Closing  

Choi Young (인제대학교 기계자동차공학부 수송기계부품기술혁신센터(TIC))
Boo Kwangsuk (인제대학교 기계자동차공학부 수송기계부품기술혁신센터)
Yeo Hong-Tae (동의대학교 기계공학과)
Hur Kwando (동의대학교 기계공학과)
Kim Hokwan (경남중소기업청)
Publication Information
Journal of the Korean Society for Precision Engineering / v.21, no.12, 2004 , pp. 140-145 More about this Journal
Abstract
In this study, the design and analysis of a butterfly valve disk was performed to minimize the rubbing between the disk and the seat at opening and closing. The butterfly valve has double eccentric structure and the contact surface between the disk and the seat is a conical surface. At the instant of opening and closing the valve by the rotation of disk, the positions of zero contact point are changed. Also, if the cone surface is cut in the perpendicular direction to the rotation axis of the valve, the contour of cutting section is hyperbolic. Therefore minimum distance between the origin of the eccentric axis and the hyperbolic curve goes to the position of zero contact point. In order to consider the interferences between the disk and the seat, the thermal-structure coupled field analysis was performed by ANSYS.
Keywords
Conical surface; Zero contact point; Thermal-structure coupled field analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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