聚乙烯热收缩带补口应用现状及施工工艺
Application Status and Construction Technology for Heat Shrinkable Tape Field Joint Coating System Based on Polyethylene
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- 引用格式:
-
李军龙,徐,星.聚乙烯热收缩带补口应用现状及施工工艺[J].天然气与石油,2016,34(6):0.doi:
Application Status and Construction Technology for Heat Shrinkable Tape Field Joint Coating System Based on Polyethylene.Application Status and Construction Technology for Heat Shrinkable Tape Field Joint Coating System Based on Polyethylene [J].Natural Gas and Oil,2016,34(6):0.doi:
- DOI:
- 作者:
- 李军龙 徐 星
Application Status and Construction Technology for Heat Shrinkable Tape Field Joint Coating System Based on Polyethylene
- 作者单位:
- 陕西宇阳石油科技工程有限公司
Shaanxi Yuyang Petroleum Technology Engineering Co., Ltd,
- 关键词:
- 热收缩带；热熔胶；中频加热；干膜安装；湿膜安装
Heat shrinkable tape; Hot melt adhesive; Medium frequency heating; Dry film installation; Wet film installation
- 摘要:
- 为提高在役管道3 LPE防腐层的补口质量,减少由于热收缩带补口失效导致的管体腐蚀现象产生,保证管道防腐层的完整性,有必要了解热收缩带补口结构及补口材料的组成和性能,识别影响热收缩带补口质量的主要因素。通过对国内外管口加热方式、热收缩带安装方式的比较,明确了干膜型热收缩带和中频加热设备相结合的补口施工工艺有着湿膜安装和手工火焰加热工艺所不具备的优势,可以有效预防和控制补口失效，减缓管体腐蚀。最后,对热收缩带补口施工流程和质量检验的要求做了简单介绍。
In order to improve the quality of in-service pipeline applied 3-layer Polyethylene coating, reduce corrosion of the pipe due to the heat shrinkable tape failure, ensure the integrity of the pipeline coating, it is necessary to understand the structure of heat shrinkable tape belt patch and repairing materials composition and performance and identify the major hazard of heat shrink able joint construction. Compared with the abroad heat-shrink belt patch technology from the manner of the heating and the heat-shrink belt installation, it is clear that construction process and the dry heat shrinkable band frequency heating equipment combining construction technology has greater advantage compared with the wet film installation and manual flame heating processes, which can effectively prevent and control the failure of joint coating, slow down the pipe corrosion. Finally, the heat shrinkable tape belt patch for construction process and quality inspection were introduced briefly.
