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柔性复合材料改造城市燃气管道性能研究

STUDY ON PROPERTIES OF CIVIL GAS PIPELINE THROUGH MODIFICATION WITH FLEXIBLE COMPOSITES

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【Author】 LU Shan, QIU Jian-hui, XU Fang-yuan (College of Material Science and Technology, Nanjing University of Aeronauticsand Astronautics,Nanjing 210016, China)Abstct:In the project of natural gas transportation from the western to eastern regions, it is an economic and practical method for natural gas transportion to modify existing civil gas pipelines with flexible composite joints. The paper describes a sort of high performance polyurethane-polyethylene glycol terephthalate(PET) fiber fabric-aluminium foil composite liner to be used as airtight joint structure of the gas pipeline. It introduces the gas pipeline modification technology developped by Chevalier-PRS(Asia)Holdings Ltd. of Hongkong and test on the air-tightness, air pressure resistance, bending and peel strength,accelerated aging of the gas pipeline airtight joint structure. The results show that the structure has excellent property and reliability and can be suitable for the natural gas transportation.

【机构】南京航空航天大学材料科学与技术学院；南京航空航天大学材料科学与技术学院南京210016；南京210016；南京210016；

【摘要】在西气东输中采用柔性复合材料改造城市原有煤气管道接头来输送天然气是一种经济、实用的方法。本文介绍了一种高性能的聚氨酯-涤纶布-铝箔复合材料内衬的煤气管道接头密封连接结构,还介绍了“诺迪霸工艺”,并按有关试验标准,对管道接头密封结构进行了气密性、耐气压、抗弯曲、抗剥离强度及人工加速老化等试验。试验结果证明,这种结构形式和施工工艺性能优良、安全可靠,能够满足天然气输送。更多还原

【Abstract】 In the project of natural gas transportation from the western to eastern regions, it is an econom ic and practical method for natural gas transportion to mod ify existing civil gas pipelines with flexible composite joints. The paper describes a sort of high performance polyurethane-polyethylene glycol terephthalate (PET) fiber fabric-alu- m inium foil composite liner to be used as airtight joint structure of the gas pipeline. It introduces the gas pipeline mod ification technology developped by Chevalier-PRS (Asia) Hold ings Ltd. ofHongkong and test on the air-tight- ness, air pressure resistance, bend ing and peel strength, accelerated aging of the gas pipeline airtight joint struc- ture. The results show that the structure has excellent property and reliability and can be suitable for the natural gas transportation.更多还原

【关键词】复合材料；天然气；管道改造；密封；
【Key words】 composites； natural gas； pipeline modification； airtight；

【基金】香港其士普鲁斯(亚洲)集团有限公司资助

【文献出处】玻璃钢/复合材料 ,Fiber Reinforced Plastics/Composite , 编辑部邮箱 ,2005年05期

【分类号】TU996;
【被引频次】3
【下载频次】125

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