化工学报2019，Vol.70Issue(z1)：54-60,7.DOI:10.11949/j.issn.0438⁃1157.20180991
纯水静态闪蒸中液膜高度演变的实验研究
Experimental study on evolution of waterfilm height during static flash of pure water
摘要
Abstract
Experimental study on evolution of waterfilm height during static flash of pure water was carried out with superheat varying between 7.0 K and 32.5 K, orifice diameter at 5, 10, 20 mm, and flash speed between 0.004 s-1 and 0.073 s-1. Results indicated that the maximum expansion rate of waterfilm increased with rising superheat or orifice diameter. At given orifice diameter, the flash speed decreased with rising superheat, however, the maximum expansion rate of waterfilm increased with it. At given superheat, both flash speed and the maximum expansion rate increased with increasing orifice diameter. At last, an experimental correlation was set up between maximum expansion rate and superheat, flash speed. The calculated results matched well with experimental data. These results provided a technical support for the miniaturization, compactness and finely control of industrial flash system.关键词
静态闪蒸/过热度/节流孔板直径/闪蒸速率/最大膨胀率Key words
static flash/ superheat/ orifice diameter/ flash speed/ maximum expansion rate分类
能源科技引用本文复制引用
王辉辉,张丹,杨庆忠,牛照程..纯水静态闪蒸中液膜高度演变的实验研究[J].化工学报,2019,70(z1):54-60,7.基金项目
国家重点研发计划项目(2018YFB0604303) （2018YFB0604303）
