LNG低温调节蝶阀设计与性能试验

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Abstract：AnovelLGultralowtemperatureregulatingbuteflyalvehasbenesigedfeaturinganomialpressureratigofAI Class150andanoperating temperature extendingdown to-196℃.This studyencompasses structural designoptimizationofsealing andcoectionmchanism，sellasaterialslctionandmanufacturingprocessimprovemetsforpivotalomponentseesign incorporatesadouble-ofsetstructuretostreamlinetheflowpathandreduceoperatingtorque.Aninovativemulti-layercomposite sealingsystem，tegatingetalsalingithflexblegapitesalingisdvelodtosuresalingeliabilityinygeicodiio. The primarypresure-bearingcomponentsaremanufacturedfromASTMA351Gr.CF8Mausteniticstainlessstel，withryogenic treatmentapliedtoenhancelow-temperature toughnessLow-temperatureenvironmentaltestsandperformancevalidationof the prototypedemonstratethattheuterflvalveexibitshghcontroleficiencyandreliablityiLNGoperatingconditions.Tesearch findings provide theoretical support and practical guidance forthe localization of critical LNG equipment.

Keywords：lowtemperatureadjustmentbuterflyalve;LG;peformancetesting;techncalcharacteristics;sealingpeforance

随着全球能源格局的变革和对环境可持续发展的日益重视，清洁能源市场需求呈现出持续增长的态势。（剩余8031字）