LYU Tai, ZHAI Bo. Numerical analysis and monitoring of radial seal in a rotary air preheater[J]. Thermal power generation, 2014, 43(11): 41-45.DOI:
回转式空气预热器径向密封数值分析及监测
摘要
为实时掌握回转式空气预热器(空预器)的径向漏风情况
运用CFD软件建立了空预器传热的三维模型。该模型研究了空预器蓄热体上的温度分布和热传递
通过分析空预器漏风对烟气温度和CO2比例的影响
监测径向密封气密性
并在某300 MW机组实际测试中验证了计算结果。
Abstract
To real-time monitor radial leakage situation of a rotary air preheater
a three-dimensional numerical model for heat transfer of the air preheater was established
by using the CFD software.Through this model
temperature distribution and heat transfer on the air preheater regenerator was investigated.On the basis of analyzing the effect of air preheater leakage on flue-gas temperature and CO2 content
the radial seal airtight was g monitored.Finally
the simulation results were validated by actual test on a 300 MW unit.