二氧化硅气凝胶毡复合聚异氰脲酸酯新型保冷结构在LNG管线系统的应用研究  

Application of New Cold Insulation Structure with Silica Aerogel Blanket Composite Polyisocyanurate in LNG Pipeline System

作　　者：刘艳平 吴然 向兵 LIU Yan ping;WU Ran;XIANG Bing(Jiangsu Sunpower Piping Technology Co.Ltd,Nanjing 211112,Jiangsu,China)

机构地区：[1]江苏中圣管道工程技术有限公司,江苏南京211112

出　　处：《化学工程与装备》2020年第3期49-52,64,共5页Chemical Engineering & Equipment

摘　　要：本文介绍了应用于LNG管线系统的一种新型复合保冷结构,二氧化硅气凝胶毡(SA)复合聚异氰脲酸酯(PIR),对比了PIR、泡沫玻璃(FG)、SA保冷材料的性能,计算对比了不同管径的传统保冷结构PIR+FG和新型保冷结构PIR+SA的绝热厚度,研究了新型保冷结构的耐火性能,对比总结传统保冷结构与新型保冷结构的综合性能。结果表明,该新型保冷结构具有优异的保温性能和防火性能、能大大减少保冷厚度、节约管廊空间、施工方便、综合造价低,在LNG行业有很好的推广应用价值。This paper introduced a new type of composite insulating structure that applied in LNG pipeline system which is silica aerogel blanket(SA)composite polyisocyanurate(PIR).The properties of PIR,foam glass(FG)and SA were compared,calculated and compared the adiabatic thickness of PIR+FG and PIR+SA with different pipe diameters.This paper studies the fire resistance of the new type of structure,compares and summarizes the comprehensive performance of the traditional and the new type of structure.The results show that the new type of cold insulation structure has excellent insulation performance and fire resistance,can greatly reduce the thickness of cold insulation,save the space of pipe gallery,convenient construction,lower comprehensive cost,and has a good value of promotion and application in the LNG industry.

关 键 词：二氧化硅气凝胶毡 聚异氰尿酸酯 泡沫玻璃 导热系数 防火性 

分 类 号：TE973[石油与天然气工程—石油机械设备]