From the view of life cycle and economics the optimum insulation thickness of hot air pipes in industrial furnaces is discussed.
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。
In steam pipes, coupled heat pipelines, small heating equipment, heating equipment, air temperatures do not ask for the use of equipment, it should be the choice of hot static type steam traps. 3.
在蒸汽管道，伴热管线、小型加热设备，采暖设备，温度要求不高的用汽设备，应该选用热静力型疏水阀。3。在高温高压过热蒸汽管线和设备上，应该选用过热蒸汽专用疏水阀。
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