埋地聚乙烯燃气管道基于失效模式的全面检验关键技术及工程应用  

The Key Technology Research and Application of Comprehensive Inspection on Buried Polyethylene Gas Pipeline Based on Failure Form

作　　者：石秀山[1] 何仁洋[1] 曾维国[1] 任峰[1] 蔡广明[1] 

机构地区：[1]中国特种设备检测研究院,北京100029

出　　处：《中国特种设备安全》2014年第7期8-12,21,共6页China Special Equipment Safety

摘　　要：PE管道因有较高的性价比,广泛应用在能源、燃气等工程中,但因其焊接接头质量难以检测、位置探查难度大,使PE管道的安全状况难以控制,导致泄漏等事故。基于PE管材的失效模式,参照钢质管道的检验经验,中国特种设备检测研究院研究确定了PE管道基于失效模式的全面检验关键技术,并围绕关键技术开展了多项研究,取得了一系列科研成果,如:PE管焊接质量超声相控阵动态聚焦和B扫查成像检测、探地雷达、泄漏在线检测、老化及安全评价、风险评估方法等。这些系列成果,在新疆、青海、内蒙古、宁夏等城市PE燃气管网中得到了有效应用,检验出多项安全隐患,为城市燃气的安全提供了保障,为今后全面开展PE管线检验,提供了成功经验。Polyethylene pipeline is used in energy etc., because of high cost performance. But, the pipeline is placed underground with undetectable welded splices, which will lead to leakage. This paper puts forward key the key technology of comprehensive inspection based on failure form, experience of steel pipeline and code of Polyethylene pipeline; introduces some scientific research production of CESI in recent years, for example： phased array ultrasonic focusing technique as well as B-scan real image technology, geologic radar, leak finding technology, aging and safety evaluation technology. The key inspection technology was applied in buried Polyethylene pipeline of a city and found some potential safety hazards, which provides the guarantee for the safety of the city gas.

关 键 词：PE管道 全面检验 缺陷检测 位置探测 泄漏检测 寿命预测 安全评价 风险评估 工程应用 

分 类 号：X924[环境科学与工程—安全科学] TP807[自动化与计算机技术—检测技术与自动化装置]