摘要
对石膏旋流器在不同溢流管插入深度、溢流管壁厚和溢流与底流管径比k等参数条件下进行了研究,并分析了分股比的变化规律.结果表明:溢流管壁厚和溢流管插入深度均存在一个最优值,使得石膏旋流器分股比最大;入口压力对分股比的影响随着k值的增大而减小,并且k值越小,变化趋势越明显;在保持旋流器柱段内径、锥角、入口管内径以及溢流管壁厚不变,当k值一致时,分离效率随着入口压力的升高而提高,提高的趋势较平缓.
Experimental tests were conducted to study the law of split ratio of a gypsum cyclone varying with its overflow pipe＇s insertion depth, wall thickness, and the size ratio of its overflow pipe to bottom flow pipe （k）. Results show that both the wall thickness and insertion depth of overflow pipe have an opti- mum value, in which case the split ratio is maximized. The influence of inlet pressure on split ratio reduces with rising ratio k; the smaller the k value is, the obvious the influence will be. The separation efficiency increases slightly with the rise of inlet pressure at the premise that the inner diameter of cyclone column and inlet pipe, the cone angle, the wall thickness of overflow pipe and the k ratio are all fixed.
出处
《动力工程学报》
CAS
CSCD
北大核心
2011年第9期678-681,688,共5页
Journal of Chinese Society of Power Engineering
基金
北京市教育委员会共建专项基金资助项目(XC90017)
关键词
石膏旋流器
结构参数
分股比
入口压力
分离效率
gypsum cyclone
structural parameter
split ratio
inlet pressure
separation efficiency
