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Exploring the Use of Advanced Pipe Condition Assessment Technologies in Achieving the Infrastructure Management Needs

机译：探索满足基础设施管理需求的先进管道状态评估技术的使用

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摘要

Most cast iron, ductile iron and steel pipelines globally are at or nearing their design life. Leaks and breaks are daily occurrences and often lead to property damage, injuries and sometimes in loss of life. Statistics show that the world average leakage rate of treated, potable water is over 30%. Yes, one-third of all the water we filter, chlorinate, fluoridate and pump never reaches the customers. Why - mainly due to leakage at joints and through corroded areas.The primary responsibility of asset managers is to reduce the risk of failure of their aging pipeline infrastructure. An important consideration is to know the pipeline integrity by proactively performing preventive maintenance activities (direct condition assessment - DCA) using advanced electromagnetic in-line inspections (ILI) technologies.The strengths and capabilities of DCA activities using advanced high resolution ILI tools (also known as "smart pigs") are:1.Determine the remaining wall thickness of a pipeline from start to end.2.Inspection of the complete circumference of pipelines ranging in size from 3 in. to 30 in., including cast iron/ductile iron/steel pipelines.3.Detection of defects like: corrosion, pitting, erosion, cracks and graphitization.4.Measuring through cement mortar, polyethylene, scale and nodules up to 1 in. thick, without significantly affecting the quality of the data.5.The technique is equally sensitive to O.D. or I.D. wall loss.This paper discusses the basic principles of the technology, its deliverables and describes several case studies where it has been successfully used to do DCA of raw water, potable water and waste water pipelines.
机译：全球大多数铸铁，球墨铸铁和钢质管道已达到或接近其设计寿命。渗漏和破裂是每天发生的事故，经常导致财产损失，伤害甚至有时导致人员伤亡。统计数据显示，世界上经过处理的饮用水的平均泄漏率超过30％。是的，我们过滤，氯化，氟化和泵送的所有水中有三分之一从未到达客户手中。为什么-主要是由于接头和腐蚀区域的泄漏。资产经理的主要职责是减少老化的管道基础设施发生故障的风险。一个重要的考虑因素是通过使用先进的电磁在线检查（ILI）技术主动执行预防性维护活动（直接状态评估-DCA）来了解管道的完整性。使用高级高分辨率ILI工具（也称为DCA）的DCA活动的优势和能力作为“智能生猪”）是：1。从头到尾确定管道的剩余壁厚。2。检查尺寸从3 in。到30 in。的管道的整个周长，包括铸铁/球墨铸铁3）缺陷的检测：腐蚀，点蚀，腐蚀，裂缝和石墨化。4。通过水泥砂浆，聚乙烯，不超过1英寸厚的结垢和结核进行测量，而不会显着影响数据质量。5该技术对OD同样敏感或身份证本文讨论了该技术的基本原理，可交付成果，并描述了一些成功用于原水，饮用水和废水管道DCA的案例研究。

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