第40卷第4期压力容器2023年4月doi:■■■■■■■■■■■■■■■■■■■■10．3969/j．issn．1001－4837．2023．04．008标准规范大型低温液化气储罐国家标准GB/T26978—2021修订解读扬帆(中海石油气电集团有限责任公司，北京100028)摘要:GB/T26978—2021《现场组装立式圆筒平底钢质低温液化气储罐的设计与建造》是国内一部低温液化气储罐设计建造的基础性国家标准。为便于国内低温储罐行业建设者更好地理解2021版标准，从修订背景和意义出发，对GB/T26978—2021的适用范围、设计依据、金属构件、混凝土构件、绝热构件以及试验干燥置换冷却等修改内容进行了全面解读，对比了新版标准与原版标准及其他相关规范的区别，给出了标准在修订中的主要变更内容，并对修改原因及差异性进行分析，以便更好地指导国内低温液化气储罐的设计建造工作，推动该标准的贯彻落实。关键词:GB/T26978—2021;低温液化气储罐;技术要求;修订解读中图分类号:TH49;TE821;T－652．1文献标志码:BInterpretationofrevisionofthenationalstandardGB/T26978—2021forlargecryogenicliquefiedgasstoragetanksYANGFan(CNOOCGas＆PowerGroupCo．，Ltd．，Beijing100028，China)Abstract:GB/T26978—2021DesignandManufactureofSiteBuilt，Vertical，Cylindrical，Flat-bottomedSteelTanksfortheStorageofCryogenicLiquefiedGasisthefundamentalnationalstandardforthedesignandconstructionofcryogenicliquefiedgasstoragetanksinChina．Inordertofacilitatedomesticcryogenicstoragetankindustrybuilderstobetterunderstandthe2021versionofthestandard，startingfromthebackgroundandsignificanceoftherevision，thescopeofapplication，designbasis，metalcomponents，concretecomponents，insulationcomponentsandexperimentaldryingreplacementcoolingofGB/T26978—2021werecomprehensivelyinterpreted．Thedifferencesbetweenthenewversionofthestandardandtheoriginalversionofthestandardandotherrelevantspecificationswerecompared，andthemainchangestothestandardintherevisionweregiven，andthereasonsanddifferencesforthemodificationswereanalyzedinordertobetterguidethedesignandconstructionofcryogenicliquefiedgasstoragetanksinChina，andpromotetheimplementationofthisstandard．Keywords:GB/T26978—2021;cryogenicliquefiedgastank;technicalrequirement...
