摘要
在用工业压力管道由于在设计、制造、安装、修理、改造等环节存在"先天不足",管道经一段时间使用后,会出现时效劣化。通过定期检验及时发现并消除安全隐患是保障压力管道安全运行的重要手段。由于管道的特殊性,对从事管道定期检验的人员综合素质要求较高。目前从事压力管道定期检验的检验人员还或多或少沿用压力容器检验的思维惯式,依据现行规范对未焊透等超标缺陷的安全评定过于保守,检测过程中存在检测不足与过度现象还比较严重。
Because the inherent shortages exist in design, fabrication, installation, repair and reform, onsite industrial pressure pip- ing will deteriorate after operating for some times. Periodical inspection is important measure to make pressure piping performance in safety. In view of special characteristics of pressure piping, the persons inspecting piping are required to have high specialty quality. Currently, most of these persons still have the thought for inspection for pressure vessel, which is over conservative in determination of flaws existed in weld on the basis of ＂Pressure Pipe Safety Technology Supervision Regulation for Industrial Pressure Pipe＂. In inspection, the phenomena of excessive or inadequate assessment for flaws still exist in many cases.
出处
《化工设备与管道》
CAS
2011年第1期51-53,共3页
Process Equipment & Piping
关键词
压力管道
定期检验
安全评定
pressure piping
periodical inspection
safety assessment
