長途管線出入土段腐蝕檢測技術之整合應用

Integrated NDT Techniques for Onshore Transmission Pipeline SAI Corrosion Inspection

工業管線在石化、煉油、鋼鐵與發電產業扮演著相當重要的角色，除於場區內負責輸送製程物料及產物的管線系統外，廠與廠間物料輸送管線亦扮了演重要角色。若管線安全性管理不當，引起洩漏或爆炸都將造成巨大的人力物力損失，更嚴重者將引起難以挽回的工安事故。在台灣，自2014年高雄地下管線的洩漏事故對公眾安全造成莫大的影響，長途地下管線檢查和安全管理相關議題在過去幾年來為大家所關心的焦點。隨著電腦計算能力提升，非破壞性檢測技術近幾年來也有突破性的發展，本文乃整合多項非破壞檢測技術應用於長途地下管線腐蝕的檢測，包括管內檢測（IP檢測）、導波檢測、定量電磁超音波檢測與脈衝渦電流檢測等，針對長途管線在工場內與掛橋管線的明管段以及長途管線埋地段未開挖與開挖後的腐蝕檢測，導入上述四項檢測方法於長途管線的不同管段部位，同時提出管線腐蝕檢測加監測作為管線長照2.0之實際作為，為管線安全的管理提供一項解決方案。

Industrial pipelines paly a very important role in the petrochemical, refining, steel and power generation industries. Most of these pipelines are buried and their integrity is highly important. Defects like corrosions and cracks destruct the integrity of pipeline and can cause highly dangerous damage results. In Taiwan, the explosion of buried pipelines in Kaohsiung in 2014 has had a major impact on public safety. The issues related to pipelines inspection and safety management have been the focus of attention in the past few years. This paper integrates multiple non-destructive testing technologies for long-distance pipelines corrosion inspection, including in-line inspection (IP inspection), guided wave testing, quantitative electromagnetic ultrasonic testing, and pulsed eddy current testing, etc. For the different parts of the long-distance pipelines, the 4 testing methods are applied to different pipe section. Meanwhile, pipeline corrosion monitoring is proposed as the long term care 2.0 of pipelines, which provides a solution for pipeline safety management.