聚氨酯泡沫夹克管腐蚀原因及改进技术研究
Corrosion Reasons of Pipeline with Polyurethane Foaming Layer-Jacket and Study on Improving Technique
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- DOI:
- 作者:
- 郑其俊1, 陈小林2, 崔双民2, 张红磊1, 王伟1, 刘晓建1
ZHENG Qi-jun1, Chen Xiaoling2, Cui Shaungming2, Zhang Honglei1, Wang Wei1, Liu Xiaojian1
- 作者单位:
- 1. 中国石油集团工程技术研究院, 天津 300451;
2. 唐山冀东石油建设工程有限公司, 河北唐山 063200
CNPC Research Institute of Engineering Technology, Tianjin 300451, China
- 关键词:
- 集输管道;聚氨酯泡沫;夹克管;腐蚀原因;缓蚀剂;聚脲;补口
gathering and transportation pipelines polyurethane;pipeline with polyurethane;foaming layer-jacket corrosion reason;corrosion inhibitor polyurea field joint
- 摘要:
- 系统地分析了油田集输管道用聚氨酯泡沫夹克管（泡夹管）腐蚀的原因，并对聚氨酯泡沫的发泡剂、催化剂、缓蚀剂以及补口技术进行了改进。研制成的聚氨酯泡沫用缓蚀剂，在不改变原有生产工艺及发泡参数的基础上，将聚氨酯泡沫浸水析出液的pH值由酸性改变为弱碱性，从而达到抑制或延缓泡夹管腐蚀的目的；采用喷涂聚脲补口技术，有效地提高了现场补口的质量。技术经济性分析表明，改进后的泡夹管的生产成本与现用泡夹管的成本相当，甚至略有降低。
The corrosion reasons of oil gathering pipeline with polyurethane foaming layer-jackets were systematically analyzed. The improvements of foaming agent, catalyst and corrosion inhibitor used for polyurethane foaming as well as field joint technique were implemented. Based on the original production process, the developed corrosion inhibitor used for polyurethane foaming changes the pH of dialyzate, which is produced from submerging polyurethane foam to water, from acidity into faint alkalinity, so as to inhibit or retard corrosion of the pipeline. The adoption of spraying polyurea method for field joints improves effectively the quality of field joints.2007,2(2): 21-25 收稿日期：2006-9-28分类号：TE973.3基金项目：中国石油天然气集团公司重点科研项目(03B411101)作者简介：郑其俊（1944- ），男，江苏阜宁人，1967年毕业于南京化工学院，1987-1989年赴美国纽约州立大学研修，高级工程师，中国绝热隔音材料协会专家委员会委员，主要从事新型保温绝热材料及保温技术的研究。参考文献：
[1] 方禹声,朱吕民. 聚氨酯泡沫塑料[M].北京:化学工业出版社,1984. 281-282.
[2] 宋庆杰,侯亚平,王向阳,等.浅谈黄夹克塑料管道的腐蚀原因[J].腐蚀与防护,2001,(1):454 -455.
[3] 王居生,贺安明,刘振川.黄夹克泡沫塑料管道的腐蚀与修补[J].油田地面工程,1994,(2):36-39.
[4] 黄微波,王保柱. 喷涂聚脲弹性体技术的发展[J]. 中国涂料,2001,(5):31 -37.
[5] 王学国,马金凤. 热收缩带现场补口开裂分析[J].防腐保温技术,1999,(2):35 -36.