跨越平行三通热应力分析及设计优化
Thermal stress analysis and design optimization of across-parallel tees
王杰 1单既国 1肖培飞 2施志钢1
作者信息
- 1. 青岛理工大学 环境与市政工程学院,青岛 266525
- 2. 菏泽投资发展集团有限公司,菏泽 274000
- 折叠
摘要
为了保证集中供热埋地三通管道的运行安全,提出跨越平行三通的设计方案,提高了供热三通管道吸收热应力的能力,并且能够连续稳定运行.利用CAESAR II应力分析软件,模拟了跨越平行三通在运行工况时的工作状态,通过分析管道内压、壁厚、温升、弯头弯曲半径以及短臂L2 的长度对三通应力的影响,提出了对三通结构参数的优化.结果表明,跨越平行三通具有补偿量大、管道强度高、不占用地下空间、工程造价低等特点.
Abstract
In order to ensure the safe operation of the buried tee pipeline of central heating,this paper proposes a design scheme of across-parallel tees,which improves the ability of the heating tee to absorb thermal expansion stress and makes the heating tee operate continuous-ly and stably.In this paper,CAESAR II stress analysis software is used to simulate the working state of the across-parallel tees under heating conditions,and the influence of pipe internal pressure,wall thickness,temperature rise,elbow bending radius and length of short arm L2 on tee stress is analyzed,and the structural parameters of tee are optimized.The results show that the across-parallel tees have the characteristics of large compensation amount,high pipeline strength,no occupation of underground space and low project cost.
关键词
直埋供热三通/CAESAR/Ⅱ软件/应力分析Key words
directly buried heating tee pipeline/CAESAR II/stress analysis引用本文复制引用
基金项目
国家自然科学基金资助项目(52078257)
出版年
2024
NETL
NSTL
维普
万方数据