超超临界锅炉水冷壁传热特性和温度偏差

The Heat Transfer Characteristic and Temperature Deviation of Super Critical Boiler Water Wall

叙述了变压运行超超临界锅炉水冷壁的运行特点,传热恶化、温度偏差与水动力稳定性的国内外研究结果,提出了对垂直内螺纹管水冷壁质量流速的选取和水动力不稳定性校核的看法。

This paper describes the operation features of water wall for sliding pressure operation USC boilers. This paper illustrate the deteriorism in heat transfer, temperature deviation and hydrodynamic unstability of vertical water wall for USC boilers based on the research work in and out of China. The mass flux seleeition and the cheek for hydrodymamie unstability have also been provided herein.