流体机械2017，Vol.45Issue(1)：48-54,7.DOI:10.3969/j.issn.1005-0329.2017.01.009
一种新型偏心蝶阀的设计与分析
Design and Analysis of a New Eccentric Butterfly Valve
摘要
Abstract
A new structure of eccentric butterfly valve is proposed to lighten the phenomena of "Water Hammer" of three-eccentric pneumatic butterfly valve designed by some instrument company independently.A finite element analysis and simulation on the performance of internal flow field are conducted on three-eccentric butterfly valve and new eccentric butterfly valve.The structure principle of new structural butterfly valve is introduced.The pressure contours,velocity contours and streamline pattern of two kinds of butterfly valve are analyzed and the flow characteristics and flow resistance performance are achieved.The analysis results show that the new structural butterfly can reduce the "Water Hammer" phenomenon because of the increasing of flow resistance coefficient of the small opening and decreasing of flow variation at the instant of valve closure.关键词
三偏心蝶阀/新型偏心蝶阀/水锤/内部流场Key words
three-eccentric butterfly valve/new structural butterfly valve/water hammer/internal flow field分类
机械制造引用本文复制引用
杨岩,杨恒虎,杨长辉,李扬,徐国庆,刘海..一种新型偏心蝶阀的设计与分析[J].流体机械,2017,45(1):48-54,7.基金项目
重庆市应用开发计划项目(cstc2014yykfA70003) （cstc2014yykfA70003）
