管道内壁阴极保护技术
Research on Pipeline Internal Wall Cathode Protection Technology
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- DOI:
- 作者:
- 张陶清, 孙魁
Zhang Taoqing
- 作者单位:
- 江汉石油管理局勘察设计研究院
Qianjiang, Hubei
- 关键词:
- 管道;内防腐;阴极保护;阳极;安装
pipeline;internal wall anticorrosion;cathode protection;anode;installation
- 摘要:
- 阴极保护技术已广泛应用于管道的外防腐,而在管道的内防腐中还存在只适用于大口径管道、保护距离短、阳极与管道内壁绝缘难、安装复杂等问题。为此,江汉油田设计院开展了管道内壁阴极保护技术研究工作。试验证明,管道内壁采用强制电流和牺牲阳极阴极保护完全可行,用在柔性阳极或带状锌合金、铝合金牺牲阳极上外套打孔塑料管或塑料网的安装方式成功地解决了管道内壁阴极保护存在的上述问题,具有适用范围广、施工工艺简单、经济方便等优点。文章着重介绍了塑料套管或塑料网阳极安装方式及其模拟试验、现场试验的条件和结果。
It has been proved that the pipeline internal wall can be protected with impressed current sacrificial anode after testing. The installation method is that the wire anode or ribbon zinc alloy, aluminum alloy sacrificial anode are nested into plastic pipeline with many holes or plastic net pipe. This method has many advantages such as wide application limit, simple construction process, economic convenient etc. The paper emphatically introduces the installation method of the anode plastic pipeline with many holes or plastic net pipe, simulation test, test condition result.2003,1(1): 28-30,3 收稿日期：2002-8-8作者简介：张陶清,高级工程师.1988年毕业于武汉化工学院选矿专业,多年从事化工和油气集输工艺的设计及现场施工工作.通讯地址:湖北省潜江市向阳,邮编:433123,电话:0728-6576384参考文献：
[1]胡士信.阴极保护工程手册[M].北京:化学工业出版社,1999:161-170