摘要
超超临界压力(USC)直流炉膜式水冷壁向火侧危险点壁温的在线监测一直都较难实现。本文基于有限元分析的理论提出一种针对900 MW超超临界压力电站锅炉水冷壁在线温度场数值模拟水冷壁截面二维温度场方法,数值模拟结果经理论分析和试验验证,求解精度高,可信度好,为间接测量USC直流炉水冷壁向火侧危险点温度提供了新的监测方法。
It has all along been rather difficult to realize an on-line monitoring of the hazardous-point wall temperatures of a flame-facing membrane wall in an ultrasupercritical-pressure once-through boiler.Based on a finite-element analysis theory,the authors have come up with a method for the numerical simulation of water-wall cross-section two-dimensional temperature field for the on-line temperature field of a 900 MW ultra-supercritical-pressure utility boiler water wall.Through a theoretical analysis and an experimental verification it has been found that the numerical simulation features a solution of high precision and good confidence level,providing a new monitoring method for the indirect measurement of hazardous-point temperatures in the flame-facing water wall of an ultra-supercritical-pressure once-through boiler.
出处
《热能动力工程》
EI
CAS
CSCD
北大核心
2006年第3期303-306,310,共5页
Journal of Engineering for Thermal Energy and Power
