西北地区某输油站原油储罐内涂层脱落原因分析
Reason Analysis of Internal Coating Peeling Failure Appeared in One Crude Oil Storage Tank at Gathering Station in Northwest China
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- DOI:
- 作者:
- 韩文礼1,3, 赵常英2, 张贻刚1,3
HAN Wen-li1,3, ZHAO Chang-ying2, ZHANG Yi-gang1,3
- 作者单位:
- 1. 中国石油集团工程技术研究院, 天津 300451;
2. 石油管工程重点实验室涂层材料与保温结构研究室, 河北 任丘 062550;
3. 中国石油工程设计有限公司华北分公司, 天津 300451
CNPC Research Institute of Engineering Technology, Tianjin 300451, China
- 关键词:
- 原油储罐;涂层;脱落;附着力
crude oil storage tank;coating;peeling;adhesion
- 摘要:
- 西北地区某输油站内一座5万m3浮顶原油储罐，在投产几个月后就出现了罐底内表面和浮舱下表面涂层严重脱落，文章介绍了该罐的防腐施工过程、分析了影响涂层附着力的因素，找出了涂层脱落的原因，主要是罐底板第一道漆受污染、罐底板和浮舱下表面变形、下表面涂层厚度不足以及大风对涂层的撕裂作用。
A case of coating peeling failure in one 50 000m3 crude oil storage tank at a gathering station in Northwest China was studied in this paper. In this case, the coatings on the internal surface of the tank bottom and on the undersurface of the tank floating-cabin peeled severely after a few months being put into operation. The influencing factors of coating adhesion such as coating construction process, environment, operating conditions were analyzed. The causes of coating peeling failure in this case were also found, which mainly were contamination of the first layer of lacquer on the bottom, deformations of the bottom plates and the floating-cabin undersurface, insufficient coating thickness on the floating-cabin undersurface, and peeling action of strong wind on coating.2013,1(1): 59-61 收稿日期：2012-5-25DOI：10.3969/j.issn.1001-2206.2013.01.018作者简介：韩文礼（1961-），男，河北蠡县人，高级工程师，1982 年毕业于北京钢铁学院，从事金属腐蚀与防护研究工作。