环境氢脆下压力变送器的选型及应用  

Type Selection and Application of Pressure Transmitter under Environmental Hydrogen Embrittlement

作　　者：刘坤超 

机构地区：[1]中国五环工程有限公司,武汉430223

出　　处：《石油化工自动化》2016年第5期25-27,共3页Automation in Petro-chemical Industry

摘　　要：根据引起氢脆的原因,阐述了氢脆的现象,指出了压力变送器的氢脆类型。重点分析了氢气渗透压力变送器膜片的过程及三种引发压力变送器膜片环境氢脆的机理,并针对引发压力变送器膜片环境氢脆的不同情况,讨论了压力变送器在设计选型中应采取的措施。结合具体项目,介绍了环境氢脆下压力变送器的选型应用实例。According to different causes of hydrogen embrittlement, hydrogen embrittlement types of pressure transmitter are expounded. Process of hydrogen permeation of pressure transmitter diaphragm and three kinds of mechanism under triggered pressure transmitter diaphragm environmental hydrogen embrittlement are emphatically investigated. In the view of different situations of causes for pressure transmitter diaphragm environmental hydrogen embrittlement, countermeasures to be taken in design and selection of pressure transmitter are discussed. Combined with specific project, selection and application cases of pressure transmitter under environmental hydrogen embrittlement are introduced.

关 键 词：环境氢脆 压力变送器 氢渗透 镀金膜片 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]