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随着高炉煤气能量利用的改善,煤气的发热值降低,在高炉要求高风温的条件下,低热值煤气已不能满足热风炉燃烧温度要求,必须加入高热值煤气,但焦炉煤气不可能大量供给热风炉燃烧使用,故预热助燃空气和煤气是提高燃烧温度的有效措施之一。一、热管工作原理重力式热管由管壳和工质两部分组成,在管壳外加有翅片,以增加换热面积,提高热交换效率。
With the improvement of the blast furnace gas energy utilization, the calorific value of the gas decreases. Under the condition that the blast furnace requires high wind temperature, the low calorific value gas can not meet the requirements of the hot blast stove combustion temperature, and the high calorific value gas must be added, but it is impossible for the coke oven gas to be large Supply hot stove combustion, so preheating combustion air and gas is to improve the combustion temperature is one of the effective measures. First, the working principle of heat pipe Gravity heat pipe from the shell and the working fluid of two parts, plus a tube shell fin to increase the heat transfer area, improve heat exchange efficiency.