中俄东线站场用直径1422 mm×1219 mm三通设计  

Design of D 1422 mm×1219 mm tee in China-Russia Eastern Gas Pipeline station

作　　者：尤泽广 王成[1] 傅伟庆[1] 孙学军[1] YOU Zeguang;WANG Cheng;FU Weiqing;SUN Xuejun(China Petroleum Pipeline Engineering Corporation)

机构地区：[1]中国石油天然气管道工程有限公司

出　　处：《油气储运》2020年第3期347-353,共7页Oil & Gas Storage and Transportation

基　　金：中国石油天然气集团公司“十三·五”重点攻关科技项目子课题“中俄东线站场低温环境(-45℃)用D 1422 mm×1219 mm X80三通研制”,2016B-3004-0501。

摘　　要：针对中俄东线站场低温环境用直径1422 mm×1219 mm三通设计难题,通过国内外管件标准对标、类似工程调研等手段,从设计温度的确定、材料选择、结构尺寸设计、夏比冲击韧性的制定等方面进行全面研究,确定中俄东线站场管件最低设计温度为-45℃,三通材料选用X80;采用SY/T 0609—2016《优质钢制对焊管件规范》中的极限分析设计方法确定三通原始厚度为57 mm,三通支管端部到主管中心线长度为1090 mm;夏比冲击试验温度确定为-45℃,三通焊缝及热影响区夏比冲击功均值不小于50 J,管体夏比冲击功均值不小于60 J。技术指标的确定为中俄东线站场低温环境用三通制造技术条件的制定提供了依据,新产品的设计制造能力达到了世界先进水平。To address the design difficulty of 1422 mm×1219 mm tee used at stations along China–Russia Eastern Gas Pipeline under low temperature condition,the domestic and foreign pipe fitting standards were compared,and similar projects were investigated.A comprehensive study was carried out from the determination of design temperature,selection of materials,design of structural dimensions,establishment of Charpy impact toughness,etc.,revealing that the minimum design temperature of fittings in the China–Russia Eastern Gas Pipeline is-45℃,and the material of tee is X80.The limit analysis design method in Specification for high-test wrought butt-welding fittings(SY/T 0609-2016),is used to determine that the original thickness of the tee is 57 mm,and the length from the end of the tee branch pipe to the center line of main pipe is 1090 mm.The Charpy impact test temperature is determined to be-45℃.The mean Charpy impact energy of tee weld and heat affected zone is not less than 50 J,and that of pipe body is not less than 60 J.The determination of technical indexes would serve as a basis for the formulation of technical conditions for the manufacture of tees at stations along China–Russia Eastern Gas Pipeline under low temperature condition.The design and manufacture of the new product has reached advanced level in the world.

关 键 词：中俄东线 低温 X80 管件 夏比冲击功 

分 类 号：TE973[石油与天然气工程—石油机械设备]