多屏绝热辐射直埋蒸汽管道保温层由多层屏蔽反射层与常规保温材料制成。
The insulating layer of multi-screen insulated radiant directly buried steam pipeline is composed of multi-screens reflecting layer and conventional insulating material.
为了对直埋管道保温层及其土壤邻域的温度场进行较精确的分析，采用保形映射、分离变量和边界离散法对地下直埋管道的温度场进行分析，得到了级数形式的解。
The temperature field around a straight buried pipe was analyzed using conformal mapping, separation of variables and boundary discretization. A series solution was obtained for the temperature field.
本文探讨和介绍了蒸汽直埋敷设管道的保温及保温层厚度计算方法。
The heat preservation and calculation method for thickness layer of directly-buried steam pipes are discussed and introduced.
从寿命经济学观点出发，讨论了工业炉热风管道最佳保温层厚度的问题。
From the view of life cycle and economics the optimum insulation thickness of hot air pipes in industrial furnaces is discussed.
介绍了在不拆除现有保温层的情况下，管体腐蚀检测系统在稠油热采注汽管道中的应用。
The application of tube body corrosion detection system in the steam injection pipelines for hot extraction of thick oil is introduced when the existing insulation layer is not dismantled.
原油长输管道浅埋及低洼段的热能损失较大，采用聚氨酯硬质泡沫保温层效果良好（其保温效率达86.3％）。
Shallow buried and lowland laid pipelines, on account of their greater energy loss, are better to be insulated with hard polyurethane (Its insulation efficiency goes up to 86.3%).
本文介绍了在不拆除现有保温层的情况下，TEM检测系统在油田高温高压管道中的应用。
The application of TEM inspection system is introduced for high temperature and high pressure pipeline of oil field without destroying coating.
该薄型地暖板主要由耐热聚乙烯管道镶嵌在聚苯乙烯泡沫塑料保温层里构成，总厚度仅为12毫米。
This thin floor-heating panel was mainly composed of heat-resistant polyethylene tube, which was embedded in insulation layer of polystyrene foam, and the total thickness was only 12mm.
保温层摩擦力在管道受热膨胀时，能很好的抵消热膨胀力，可以有效地限制管道沿轴向伸长，提高了供热直埋管道的安全性。
Insulation friction in the pipe thermal expansion, well counteract thermal expansion forces can effectively restrict the pipeline along the axial elongation, improved safety Buried heating pipe.
除此以外蒸汽锅炉还容易出现蒸汽、给水管道损坏现象：管道轻微泄漏时，发出响声，保温层潮湿或漏汽、滴水。
Besides the steam boiler are prone to steam, water supply pipeline damage phenomenon: slight leakage, noise, thermal insulation layer damp or steam leakage and dripping water.
分析了保温管道的保温层及其邻域土壤的温度场和热流规律，计算了保温管道的热损失。
Analyses the temperature field and heat flow around the pipes. Calculates the heat loss of insulation pipes.
利用本发明铺设的管道即使局部破损时，仍可以有效防止渗水到保温层，确保管道的保温效 果。
The pipeline paved by the invention, even if the local part is damaged, water can be effectively prevented to seep into the insulating course in order to ensure the heat insulation effect.
利用本发明铺设的管道即使局部破损时，仍可以有效防止渗水到保温层，确保管道的保温效 果。
The pipeline paved by the invention, even if the local part is damaged, water can be effectively prevented to seep into the insulating course in order to ensure the heat insulation effect.
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