工业锅炉运行热效率偏低分析

• 作 者: 刘汉威
• 机 构: 鞍钢能源处,
• 出 处: 冶金动力
• 发表日期: 1988年03期
• 关键词: 锅炉运行 工业锅炉 空气过剩系数 热力设备 排烟热损失 耗煤量 炉排 风室 不完全燃烧 锅炉热平衡

一、前言工业锅炉是工业用汽、用水、供热的主要热力设备。分布广、耗煤量大。目前我国工业锅炉运行热效率平均只有55%,不但低于发达国家(η=70～80%),也低于我国工业锅炉的设计效率。从鞍钢的工业锅炉来看,测试过的平均热效率仅有55%左右。热效率偏低的原因有设备本身问题,也有操作技术问题,集中空气过剩系数α值和灰渣含碳量普遍偏高是工业锅炉运行热效率偏低的主要原因之一。

First, the preface Industrial boilers are industrial steam, water, heating the main thermal equipment. Widely distributed, large amount of coal consumption. At present, the average thermal efficiency of industrial boiler operation in China is only 55%, not only lower than that of developed countries (η = 70-80%), but also lower than the design efficiency of industrial boilers in China. From Angang’s industrial boilers, the average thermal efficiency tested was only about 55%. The reason for the low thermal efficiency is the equipment itself, as well as operating technical problems. The concentrated air excess coefficient α and the generally high carbon content of ash are one of the main reasons for the low thermal efficiency of industrial boilers.