Thermal stress analysis and design optimization of across-parallel tees
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.
directly buried heating tee pipelineCAESAR IIstress analysis
NETL
NSTL
万方数据
维普
