连续玻璃纤维增强PE复合管新型接头的设计  

Design of New Joint for Continuous GF Reinforced PE Composite Pipe

作　　者：徐含 张战欢 刘杰[1] 秦升学[1] 王庆昭[3] Xu Han;Zhang Zhanhuan;Liu Jie;Qin Shengxue;Wang Qingzhao(College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Qingdao Haiju New Material Technology Co.,Ltd.,Qingdao 266590,China;College of Chemical and Biological Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学机械电子工程学院,山东青岛266590 [2]青岛海聚新材料科技有限公司,山东青岛266590 [3]山东科技大学化学与生物工程工程学院,山东青岛266590

出　　处：《工程塑料应用》2023年第3期76-81,共6页Engineering Plastics Application

基　　金：山东省自然科学基金项目(ZR2021MEA234)。

摘　　要：以连续玻璃纤维(GF)增强聚乙烯(PE)复合管为研究对象,设计了一种适用于复合管道的新型非金属管道接头,该接头采用对焊和热熔缠绕的方式对管道进行连接,通过理论公式计算了管道接头处的接头厚度和GF带缠绕长度。建立了内压载荷下管道接头的有限元模型,对接头处的受力和流体流动情况进行模拟分析。模拟结果表明,GF带与管端接触的截面受力最大,最大应力出现在增强层。管道接头处的最大应力为环向应力,除最外层外,管道接头处各层受力由内向外呈现递减趋势。接头等通径的设计能够有效避免接头处物料粘结和应力集中的发生。对新型管道接头进行静液压实验,验证了管道接头的安全性与可靠性。A new type of non-metallic pipe joint suitable for composite pipes was designed,taking the continuous glass fiber(GF)reinforced polyethylene(PE)composite pipe as the research object.The joint was connected by butt welding and hot-melt winding.The joint thickness and winding length of GF tape at the pipe joint were calculated by theoretical formula method.The finite element model of the pipe joint under internal pressure load was established,and the stress and fluid flow at the joint were simulated and analyzed.The simulation results show that the section where the GF tape contacts the pipe end bears the maximum stress,and the maximum stress occurred in the reinforcement layer.The maximum stress at the pipe joint is hoop stress.Except for the outermost layer,the stress on each layer at the pipe joint decreased from inside to outside.The design of equal diameter joint can effectively avoid the occurrence of material adhesion and stress concentration at the joint.The hydrostatic test of the new pipe joint verified the safety and reliability of the pipe joint.

关 键 词：连续玻璃纤维增强聚乙烯复合管 非金属管道接头 有限元模拟 应力分布 

分 类 号：TQ055.8[化学工程]