有色金属材料与工程2025，Vol.46Issue(2)：93-99,7.DOI:10.13258/j.cnki.nmme.20240509001
煤气切断蝶阀的耐腐蚀性研究
Research on corrosion resistance of gas cut-off butterfly valve
摘要
Abstract
To improve the corrosion resistance of the gas cut-off butterfly valve,Ansys software was used to simulate and study cut-off butterfly valves with three different valve core structures.The pressure distribution on the surface and middle section of the butterfly valve during working was analyzed,as well as the impact speed on the valve plate surface.According to the analysis results,a reasonable valve core structure was determined,thereby the failure rate of butterfly valve was effectively reduced.By analyzing the corrosion mechanism of butterfly valve,surfacing welding test was conducted by using nickel alloy welding rods.The influence of dilution rate(P)on the Vickers hardness and corrosion resistance of the materials under different experimental conditions was systematically analyzed and compared.The service life of butterfly valve under different P was calculated,and reasonable surfacing welding process parameters were obtained.The research shows that the corrosion resistance of the butterfly valve is enhanced by using the optimized structure and the surfacing welding process of P=26%,with the service life of butterfly valve extended.关键词
切断蝶阀/稀释率/堆焊/使用寿命/耐腐蚀Key words
cut off butterfly valve/dilution rate/overlay welding/service life/corrosion resistance分类
机械制造引用本文复制引用
陈艳伟,李绍鹏,赵艳平,张进,陶小培..煤气切断蝶阀的耐腐蚀性研究[J].有色金属材料与工程,2025,46(2):93-99,7.基金项目
河南省科技攻关计划项目(222102320450) （222102320450）
