电站锅炉水冷壁管水动力和传热特性的试验研究方法

The Way to Study Hydrodynamic and Heat-transfer Characteristics of Water Wall Tubes in a Power Plant Boiler

介绍了电站锅炉水冷壁管水动力和传热特性研究的试验方法,阐述了其中采用的电加热试验管段和实炉辐射加热水冷壁管等方法,对各种试验方法的特点进行了比较和分析,并给出了1 000MW超超临界压力塔式直流锅炉螺旋管圈水冷壁管水动力和传热特性实炉试验研究和水动力试验台试验的结果.这些结果可作为水冷壁系统设计中的参考依据.

Ways to study the hydrodynamic and heat-transfer characteristics of water wall tubes in a power plant boiler are being discussed, using a segment of electric heating tube and real radiant water wall tubes, to which a comparison and analysis have been carried out. Experimental results are finally given, concerning the hydrodynamic and heat-transfer characteristics of the spiral water wall tubes in a 1 000 MW ultra supercritical-pressure tower-type once-through boiler, respectively tested in a real furnace and a hydrodynamic test rig. This may serve as a reference for design of water wall systems for similar power plant boilers.