土壤热导率对直埋蒸汽管道保温层厚度的影响

Influence of Soil Thermal Conductivity on Insulating Layer Thickness of Directly Buried Steam Pipeline

以内层保温材料为离心玻璃棉,外层保温材料为聚氨酯的直埋蒸汽管道为例,计算了不同土壤热导率时内、外保温层的厚度,分析了土壤热导率对保温层厚度的影响。给出了土壤热导率的选取计算方法。

Taking directly buried steam pipeline using centrifugal glass wool as inside insulating material and polyurethane as outside insulating material for example, the thicknesses of inside and outside insulating layers at different soil thermal conductivities are calculated, and the influence of soil thermal conductivity on the insulating layer thickness is analyzed. The calculation method for selection of soil thermal conductivity is given.