煤或焦炭等固体燃料气化所得热值较低的气体燃料。组成中可燃组分有氢、一氧化碳，并含有氮、二氧化碳等不可燃组分。热值约在3800～11200kJ/m3之间，易燃、易爆、有毒性。低热值煤气按来源不同有发生炉煤气、水煤气、半水煤气和高炉煤气四种。水煤气、半水煤气用于进一步化学加工；而发生炉煤气、高炉煤气则作为工业炉燃料气。
研究了不同空气预热温度对低热值煤气燃烧过程的影响。
The effects of air preheating temperature on the burning characteristics of low calorific value gas was studied.
适合钢铁厂低热值煤气燃气轮机有单筒燃烧器和多筒燃烧器二种类型。
The gas turbine using a low caloric value gas, which is suitable for iron and steel plants, has both single and multi tube type burner.
针对我国高热值燃料缺乏的现状，阐述了用低热值煤气获得高热风温度的途径。
The methods to raise blast temperature using low heat value gas are introduced for lacking good fuel in China.
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