钢铁行业在生产冶炼过程中需消耗大量的蒸汽和电力,目前国内大多数钢铁企业均建有自备热电厂,热电联产会带来成本的降低及污染物排放的减少,对提高企业的经济效益效果明显。钢铁行业热电联产发展很快,早期由于钢铁规模较小,企业自备热电厂很少,多数企业是由锅炉直接供热。近些年,随着钢铁企业生产规模的逐渐扩大, The steel industry consumes a large amount of steam and electricity during the production and smelting process. At present, most domestic steel companies have built their own cogeneration plants. The combined heat and power generation will bring about a reduction in costs and a reduction in pollutant emissions, which will greatly enhance the economic benefits of the enterprises The effect is obvious. The cogeneration industry in the iron and steel industry has developed rapidly. In the early days, due to the small size of the steel industry, few enterprises owned their own cogeneration plants. Most enterprises directly heat the boilers. In recent years, with the gradual expansion of the scale of production of iron and steel enterprises,