苏通GIL综合管廊工程用复式拉杆伸缩节  

Universal Tied Expansion Jiont in Sutong GIL Utility Tunnel Project

作　　者：解玉才 李秋[2] 吴娟 张敬三 温建平 李洪伟 XIE Yu-cai;LI Qiu;WU Juan;ZHANG Jing-san;WEN Jian-ping;LI Hong-wei(SDEE Hitachi High-Voltage Switchgear Co.,LTD, Jinan 250300, China;Shenyang HuiBo Heat Energy Equipment CO., LTD., Shenyang 110168, China;Guoyi Testing Technology(Shenyang) Co., Ltd., Shenyang 110043, China)

机构地区：[1]山东电工电气日立高压开关有限公司,山东济南250300 [2]沈阳汇博热能设备有限公司,辽宁沈阳110168 [3]沈阳国仪检测技术有限公司,辽宁沈阳110043

出　　处：《管道技术与设备》2021年第3期42-45,共4页Pipeline Technique and Equipment

摘　　要：苏通GIL综合管廊工程中应用了力平衡伸缩节、铰链型伸缩节及复式拉杆伸缩节,用以补偿各个方向的热伸缩及沉降位移。作为输电设备的关键部件,伸缩节影响设备的安全、可靠运行。文中介绍了复式拉杆伸缩节的结构设计,法兰、拉杆、中间管的校核计算,制造关键点控制以及疲劳寿命试验,尤其对疲劳寿命试验中的分阶段试验做了较详细的说明。复式拉杆伸缩节在管廊中的应用,可为类似工程提供参考。Force balanced expansion joints,hinged expansion joints and universal tied expansion joints were used to compensate the thermal expansion and settlement displacement in all directions in the Sutong GIL utility tunnel project.As a key part of transmission equipment,expansion joint affected the safety and reliablity of the equipment.This paper introduced the structural design of the universal tied expansion joint,the checking calculation of the flanges,tie rods and middle pressure pipes,the control of the manufacturing key points and the fatigue life test.Especially the stage test in the fatigue life test was explained in detail.The application of universal tied expansion joint in the tunnel can be used as a reference for similar projects.

关 键 词：管廊 波纹管 伸缩节 疲劳寿命 

分 类 号：TH703[机械工程—仪器科学与技术]