摘要
科学、合理地确定爆破片更换周期是爆破片设计、制造及使用单位的迫切需求。归纳了爆破 片提前失效模式、延迟失效模式及开度失效模式这3种失效模式,定义了爆破片使用寿命,即从爆 破片安装后的初始承压开始至爆破片出现提前失效不能再使用为止的时间周期。探讨了影响爆破 片使用寿命的疲劳、高温蠕变、常温静载及腐蚀等因素。提出从各影响因素对不同类型爆破片使用 寿命影响规律的量化,以及基于使用寿命确定更换周期安全裕量的方法这2方面进行后续研究,以 期为爆破片设计、制造、使用、寿命预测以及更换周期确定提供参考。
Scientifically and reasonably determining the replacement period of rupture discs is an urgent need for the designer,manufacturer and user of rupture discs.Three failure modes were concluded,including premature failure,delay failure and opening shape failure.The bursting disc working life was defined as the time span from the time of installation to the time when the premature failure of the bursting disc occurred.Four factors affecting the working life of bursting discs were discussed including fatigue,creep at high temperature,static load at room temperature and corrosion etc.A follow-up study on the quantification of the influence law of various influencing factors on the working life of different types of rupture discs and the method of determining the safety margin of the replacement period based on the working life were proposed.
作者
闫兴清
喻健良
李岳
温殿江
姜一昌
朱永江
韩冰
胡军
YAN Xing-qing;YU Jian-liang;LI Yue;WEN Dian-jiang;JIANG Yi-chang;ZHU Yong-jiang;HAN Bing;HU Jun(School of Chemical Machinery and Safety,DalianUniversity of Technology,Dalian 116024,China;Dalian University Safety Technology andControl Engineering Co.Ltd.,Dalian 116012,China;Dalian University SafetyEquipment Co.Ltd.,Dalian 116012,China;Dalian Boiler and Pressure Vessel Inspection Institute,Dalian 116013,China)
出处
《石油化工设备》
CAS
2019年第6期1-5,共5页
Petro-Chemical Equipment
基金
国家重点研发计划资助项目“典型特种设备安全防护系统基于功能安全的设计关键技术(2018YFC0808902)”
关键词
爆破片
失效模式
使用寿命
更换周期
bursting disc
failure mode
working life
replacing period