节能2025，Vol.44Issue(9)：83-87,5.DOI:10.3969/j.issn.1004-7948.2025.09.018
超临界锅炉膜式水冷壁传热特性数值模拟分析
Numerical simulation analysis of heat transfer characteristics of membrane water-cooled wall in supercritical boiler
王静远 1黄鉴 1宁新宇 2李松山 3吴勇3
作者信息
- 1. 中电华创(苏州)电力技术研究有限公司,江苏 苏州 215123
- 2. 中电华创(苏州)电力技术研究有限公司,江苏 苏州 215123||东南大学 大型发电装备安全运行与智能测控国家工程研究中心,江苏 南京 210096
- 3. 中电大别山(湖北)电力发展有限公司,湖北 黄冈 435300
- 折叠
摘要
Abstract
A numerical simulation study is conducted on the heat transfer characteristics of the membrane water-cooled wall of a certain supercritical boiler.A numerical model of the membrane water-cooled wall section is established to explore the influence laws of different test conditions and different flame temperatures on the key wall temperature on the backfire side of the water-cooled wall.The results show that the temperature at the center of the fin on the backfire side can reflect the wall temperature of the water-cooled tube on the backfire side to a certain extent,while the center temperature of the tube wall on the backfire side can basically represent the temperature of the working medium inside the tube.When the flame temperature on the fire-facing side of the water-cooled wall rises from 950℃to 1 450℃,the weld position at the center temperature of the fin on the backfire side is more sensitive to the change of the flame temperature on the fire-facing side.By inferring the temperature distribution of the fire-facing side wall through the backfire side wall temperature distribution,the combustion conditions in the furnace can be grasped,providing a reference for the safe,stable and efficient operation of the unit under different load conditions and energy-saving diagnosis of the boiler.关键词
膜式水冷壁/传热特性/背火侧/壁温分布/数值模拟Key words
membrane water-cooled wall/heat transfer characteristics/backfire side/wall temperature distribution/numerical simulation分类
能源与动力引用本文复制引用
王静远,黄鉴,宁新宇,李松山,吴勇..超临界锅炉膜式水冷壁传热特性数值模拟分析[J].节能,2025,44(9):83-87,5.
