LNG接收站可在线维修蝶阀的选型

Selection of Butterfly Valve for Online Maintenance in LNG Terminal

液化天然气有着清洁、高效、储存效率高等特点而受到广泛关注,国内LNG逐年增加,大口径阀门国产化需求大,对超低温阀门的选型至关重要。通过分析侧顶装低温蝶阀和正顶装低温蝶阀结构特性,分别对不同结构的蝶阀,从安装清管、测试、在线维修或更换、密封性能、维修条件及成本进行分析,为客户选型提供参考依据。

Liquefied natural gas(LNG)is widely concerned because of its cleanness,highly efficiency and highly storage efficiency.LNG in China is increasing year by year.Large diameter valves are in great demand for localization,and the selection of ultra-low temperature valves is important.This paper analyzes the structural characteristics of the side-entry cryogenic butterfly valve and top-entry cryogenic butterfly valve.Respectively for different structure of butterfly valve,we analyze from the installation,testing,online maintenance or replacement,sealing performance,maintenance conditions and costs.Provide the reference for customer selection.