摘要
火力发电是煤炭资源最高效的利用形式之一。然而,受环境条件和热力学基本规律的约束,燃煤火力发电的能源转换和利用效率仅能达到40%左右。直接空冷汽轮机的乏汽余热回收可有效降低电厂散热损失,提高电厂整体热效率。回收汽轮机乏汽余热后将极大提高电厂的供热能力。文章介绍300MW直接空冷汽轮机高背压供热的改造方案。
Thermal power generation is one of the most efficient forms of utilization of coal resources.However,subject to environmental conditions and the basic laws of thermodynamics,the energy conversion and utilization efficiency of coal-fired thermal power generation can only reach about 40%.The exhaust heat recovery of the direct air-cooled steam turbine can effectively reduce the heat dissipation loss of the power plant and improve the overall thermal efficiency of the power plant.After recovering the exhaust heat of the steam turbine,the heating capacity of the power plant will be greatly improved.
作者
孙宏亮
韩全文
常嘉明
Sun Hong-liang;Han Quan-wen;Chang Jia-ming
出处
《今日自动化》
2021年第5期36-37,共2页
Automation Today
关键词
直接空冷
余热回收
高背压
direct air cooling
waste heat recovery
high back pressure300 MW直接空冷汽轮机高背压供热改造浅析
