密相二氧化碳输送用HFW焊管全尺寸爆破试验研究  

Research on Full⁃scale Burst Test of Dense Phase CO_(2)Transportation HFW Pipe

作　　者：李鹤 王俊[1,2] 池强 霍春勇 李胜男 LI He;WANG Jun;CHI Qiang;HUO Chunyong;LI Shengnan(CNPC Engineering Materials Research Institute Co.,Ltd.,Xi'an 710077,China;State Key Laboratory of Service Behavior and Structural Safety of Petroleum Pipe and Equipment Materials,Xi'an 710077,China)

机构地区：[1]中国石油集团工程材料研究院有限公司,西安710077 [2]石油管材及装备材料服役行为与结构安全国家重点实验室,西安710077

出　　处：《焊管》2024年第10期74-79,共6页Welded Pipe and Tube

基　　金：中石油股份公司课题“超临界二氧化碳长距离管输关键技术研究”(项目编号2021ZZ01-02);陕西省秦创原密相/超临界CO_(2)管道断裂控制研究“科学家+工程师”队伍(项目编号2022KXJ-085)。

摘　　要：为确定小直径(<406 mm)HFW焊管止裂韧性,开展了X65钢级Φ323.9 mm×7.2/7.6 mm规格HFW焊管密相CO_(2)管道全尺寸爆破试验。试验结果表明,在裂纹高速扩展的情况下,所有试验钢管表现为典型的韧性剪切断裂特征;在94.47%CO_(2)+4.11%N_(2)+1.42%Ar气体组分及13.6 MPa压力、24℃条件下,由爆破试验确定的Φ323.9 mm×7.2 mm钢管的止裂韧性最高为147 J,采用ISO21913标准计算时的修正系数C_(cf)为1.073,采用BTC方法计算时的修正系数为2.01。To determine the crack resistance toughness of small⁃diameter(<406 mm)HFW welded pipes,full⁃size blasting tests were conducted on X65Φ323.9 mm×7.2/7.6 mm HFW welded pipe dense phase CO_(2)pipelines.The experimental results indicate that under high⁃speed crack propagation,all tested steel pipes exhibit typical ductile shear fracture.Under the conditions of the gas composition of 94.47%CO_(2)+4.11%N_(2)+1.42%Ar,the pressure of 13.6 MPa,and the temperature of 24℃,the highest crack arrest toughness of theΦ323.9 mm×7.2 mm steel pipe determined by the blasting test is 147 J.The correction factor C_(cf) calculated using the ISO 21913 standard is 1.073,and the correction factor calculated using the BTC method is 2.01.

关 键 词：CO_(2)管道输送 HFW焊管 全尺寸爆破试验 止裂韧性 

分 类 号：TG113.25[金属学及工艺—物理冶金] TE832[金属学及工艺—金属学]