冷管鞋的安装和质量控制
The Installation and Quality Control of Cold Shoe
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- 引用格式:
-
马志杰,杨清,郭伟.冷管鞋的安装和质量控制[J].天然气与石油,2016,34(6):0.doi:
Ma Zhijie, Yang Qing, Guo Wei.The Installation and Quality Control of Cold Shoe[J].Natural Gas and Oil,2016,34(6):0.doi:
- DOI:
- 作者:
- 马志杰1 杨 清2 郭 伟3
Ma Zhijie, Yang Qing, Guo Wei
- 作者单位:
- 1.中国石油天然气第六建设公司, 2.重庆建峰工业集团有限公司,3.中国石油管道局工程有限公司天津分公司
1.PetroChina No.6 Gas Construction Company; 2.Chongqing Jianfeng Industrial Group Co., Ltd,2.China Petroleum Pipeline Bureau Engineering Co.,Ltd. Tianjin Company
- 关键词:
- 冷管鞋；聚氨酯；二次安装；质量控制
Cold shoe; Polyurethane; Secondary installation; Quality control
- 摘要:
- ICHTHYS模块属于陆地液化天然气项目,深冷介质管线总长7 500 m,管线保冷对LNG系统运行的安全性和经济性有着重要意义。为此,该模块多采用高密度聚氨脂泡沫成品冷管鞋来改善管线保冷工艺并提升保冷综合性能。冷管鞋是ICHTHYS模块管线保冷的关键支撑,结合ICHTHYS模块中的施工实践,从冷管鞋的吊装控制、预装检查控制和组装控制三方面进行阐释,主要涉及在技术管理和质量控制上的标准、要求、规范和应用。实践结果发现,与传统管线保冷工艺相比,冷管鞋不仅具备支撑导向作用,而且可以防止管线在深冷状态下运行时积冰,从而提高管线稳定性,减少冷量损失,保证LNG系统高效运行。
ICHTHYS module belonged to the onshore LNG project. The length of the cryogenic medium pipeline was 7500 m. Pipe cold insulation had most important significance to LNG system in safety and economy. High density polyurethane foam cold shoe product was used to improve pipeline cold process and promote comprehensive performance. Cold shoe was a key support of pipeline in ICHTHYS module.This paper illustrated the cold shoe in the aspects of hoisting, pre-loaded inspection and assembly control according to construction practice. It mainly involved technical management and quality control standards, requirements, specifications and application. The results showed that cold shoe support not only have a guiding role, but also prevent pipeline from icing in a state of cryogenic operation compared with the traditional cold insulation. It guaranteed effective running of LNG pipeline and promote stability and reduce cold loss.
