干膜法防腐补口工艺在兰郑长成品油管道工程中的应用

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作者单位:: 中国石油天然气管道局第一工程分公司,河北廊坊 065000
CPP First Engineering Company,Langfang 065000, China

关键词:: 长输管道;防腐补口;技术应用;干膜法
long-distance transmission pipeline;anticorrosion field joint;technical application;dry film approach

摘要:: 在长输管道的热收缩套(带)防腐补口施工中,湿膜法容易出现底漆涂敷不均匀、局部厚度不够、电火花检漏不合格等问题,而干膜法则避免了这些问题。文章从四个方面介绍了干膜法在兰郑长成品油管道工程中成功应用的经验:干膜法防腐补口施工工艺流程、工艺要求、施工中常见缺陷及原因、提高干膜法防腐补口质量的措施。
For anticorrosion field joint construction using heat shrinking strips, some problems such as nonuniform primer coating, inadequate local coating thickness and failed passing electric spark leak detection often exist in wet film approach. But Dry film approach can avoid such problems. The successful experience using dry film approach to Lan-Zheng-Chang Product Pipeline Project is described in aspects of field joint process flow, process requirements, common defects and their causes and measures of improving anticorrosion field joint quality.

2009,1(1): 36-28 收稿日期：2008-3-13

分类号：TE988.2

作者简介：梁建国（1974-）, 男, 河北文安人, 助理工程师,毕业于辽宁大学, 一直从事长输管道工程的技术管理工作。