压缩天然气高压储气井局部结构强度分析及疲劳寿命评估  

Local Structure Strength Analysis and Fatigue Life Assessment of High Pressure Gas Storage Wells of Compressed Natural Gas

作　　者：高光甫[1,2,3] 党战伟 刘冬[4] 生金峰 白建军[1,2,3] 王丹丹[1,2,3] 朱巧家 刘宏超[1,2,3] GAO Guang-fu;DANG Zhan-wei;LIU Dong;SHENG Jin-feng;BAI Jian-jun;WANG Dan-dan;ZHU Qiao-jia;LIU Hong-chao(Lanpec Technologies Limited,Lanzhou 730070,China;Shanghai Lanbin Petrochemical Equipment Co. Ltd.,Shanghai 201518,China;Shanghai Engineering Research Center of Petrochemical Heat Exchange Equipment,Shanghai 201518,China;Mechanical and Electrical Engineering Institute,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]甘肃蓝科石化高新装备股份有限公司,甘肃兰州730070 [2]上海蓝滨石化设备有限责任公司,上海201518 [3]上海石油化工换热设备工程技术研究中心,上海201518 [4]齐齐哈尔大学机电工程学院,黑龙江齐齐哈尔161006

出　　处：《石油化工设备》2019年第5期14-18,共5页Petro-Chemical Equipment

摘　　要：压缩天然气高压储气井的高压储气方式广泛应用于国内压缩天然气加气站中,其安全性是加气站安全运行的关键。以某加气站压缩天然气高压储气井为研究对象,针对进排气接头和密封堵头2个局部危险结构,应用ANSYS有限元软件建立不同的简化力学模型,对其进行强度分析和疲劳极限计算,得出了最危险部位的应力分布和疲劳极限,并按照JB 4732-1995(2005年确认)《钢制压力容器--分析设计标准》中的相关准则对其进行应力评定及疲劳校核,为压缩天然气高压地下储气井的设计提供了参考依据。The high-pressure gas storage method of compressed natural gas high-pressure gas storage wells is widely used in domestic compressed natural gas filling stations, and its safety is the key to the safe operation of gas filling stations. A compressed natural gas high-pressure gas storage well in a gas station was taken as the research object. The different simplified mechanical models for strength analysis and the fatigue limit calculation by using ANSYS finite element software were established for the two local dangerous structures of the inlet and outlet joints and the sealing plug. The stress distribution and fatigue limit of the most dangerous parts were obtained and the stress evaluation and fatigue check were carried out according to JB 4732-1995(2005 R)Steel Pressure Vessel--Design by Analysis. It provides a reference for the design of compressed natural gas high pressure underground gas storage wells.

关 键 词：储气井 ANSYS 疲劳评估 强度分析 

分 类 号：TQ052.7[化学工程] TM621[电气工程—电力系统及自动化]