应用研究0引言压力容器是石油化工行业领域的重要特种设备，其失效会导致泄漏或爆炸事故，可能给工业生产和人民生活带来严重影响。随着我国化工装置不断的大型化，其操作要求不断提高，生产工艺也更为复杂。摘要变压吸附器是制氢装置中重要的分离设备，且长期处于疲劳和临氢环境中。针对变压吸附器的一些典型失效案例，分析总结变压吸附器在使用过程中常见的失效原因和类型，结合法律法规以及最新发布的团体标准T/CMES-PVP001—2022《超设计使用年限压力容器评估与检验导则》对变压吸附器超设计寿命使用可行性和检验方法进行讨论。建议在资料审查阶段重点审查选材和焊接部分，查看运行记录，确定使用过程中是否存在超压、超量运行情况；对于局部不连续的部位，应采用精度较高的无损检测手段；对有返修焊缝的部位重点检查，查看其返修原因，制定有针对性的检验方案。关键词超设计寿命使用容器变压吸附器疲劳全面检验中图分类号TQ116.2DOI：10.16759/j.cnki.issn.1007-7251.2023.04.006AnalysisofEvaluationandInspectionMethodsforVariablePressureAdsorbersbeyondDesignLifeZHANGPugenAbstract:Pressureswingadsorberwasanimportantseparationequipmentinhydrogenproductionunit,whichhadbeenexposedtofatigueandhydrogenforalongtime.Inviewofsometypicalfailurecasesofpressureswingadsorbers,thecommonfailurecausesandtypesofpressureswingadsorbersintheprocessofusewereanalyzedandsummarized.Incombinationwithlawsandregulationsandthelatestpublishedgroupstandard"GuidelinesfortheEvaluationandInspectionofPressureVesselswithExceedingtheDesignServiceLife"T/CMES-PVP001—2022,thefeasibilityandinspectionmethodsfortheuseofpressureswingadsorberswithexceedingthedesignservicelifewerediscussed.Itwasrecommendedtofocusonthematerialselectionandweldingpartsinthedatareviewstage,checktheoperationrecords,anddeterminewhetherthereisoverpressureandexcessiveoperationintheuseprocess.Forlocallydiscontinuousparts,nondestructivetestingwithhighaccuracyshallbeadopted.Focusontheinspectionofthepartswithrepairwelds,therepairreasonsshouldbecheckedandatargetedinspectionplanshouldbedeveloped.Keywords:Over-designservicelifevessel;Variablepressureadsorber;Fatigue;Comprehensiveinspection张蒲根*（上海市特种...
