摘要
介绍了南山天然气公司埋地钢管完整性评价的实践情况,并对评价过程中发现的问题进行了深入的探讨。从理论及实践上阐述了DCVG(直流电压梯度)技术检测金属管道防腐层的原理及应用方法,针对该方法应用于城市燃气管道中各种不同材质防腐层的检测,根据实践经验提出了不同的检测方案,为DCVG检测技术在城市燃气管道防腐层检测提供了工程经验。
The practice of the integration assessment of steel gas pipeline operated by Nanshan Gas Company Ltd. is introduced. Problems raised during the assessment process are discussed. The principle and detection method of the DCVG （ Direct Current Voltage Gradient ） technique on the metallic town gas pipeline anticon＇osive coating survey is introduced. Different detection schemes are applied according to their coating materials. The practice provided a powerful exploration on the application of DCVG technique on town gas pipeline integration assessment.
出处
《城市燃气》
2011年第5期4-8,共5页
Urban Gas
关键词
直流电压梯度钢管防腐层完整性评价
Direct Current Voltage Gradient Anticorrosive coating Integration assessment
