Thermal overhead pipeline system is widely applicable for petrochemical and city heat supply engineering.
热力架空管道系统在石油化工和城市供热工程中得到了广泛的应用。
As nonlinear factor of displacement is not taken into account in design of thermal overhead pipeline previously, actual stress condition of pipeline and support can't be reacted correctly.
原先热力架空管道的计算没有考虑到位移的非线性因素，不能正确地反映管道和支座的实际受力情况，现结合热力架空管道和支座的受力情况，给出了力学的计算模型。
For overhead pipeline, welding with basic-compound coated electrodes and pre-welding heating of the joint will reduce the joint thermal -stress.
采用碱性药皮焊条和焊前接头预热的施焊方法，焊接的空间管道接头热应力小。
For overhead pipeline, welding with basic-compound coated electrodes and pre-welding heating of the joint will reduce the joint thermal -stress.
采用碱性药皮焊条和焊前接头预热的施焊方法，焊接的空间管道接头热应力小。
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