作　　者： ; ; ; ;

机构地区： 燕山大学环境与化学工程学院

出　　处： 《热能动力工程》 2010年第2期177-179,共3页

摘　　要： 研究了一种用于核电站的新型高效汽水分离装置。针对波形板汽水分离装置两相流动复杂的问题,在改变结构参数和工作状态情况下对汽水分离器进行冷态实验,采用玻璃纤维过滤法测量其分离效率。结果表明:带有收集钩的波形板汽水分离器的效率远高于无钩分离器;增加折边长度对效率影响不大;为提高分离效率,屈折角度应为54°,板间距为20mm;气流速度临界值为5m/s,当超过此速度时,水膜发生破裂,二次夹带明显增加,且脱水效率下降。根据实验数据分析得到的最佳结构参数,可用于指导该装置的设计。 Studied was a novel high-efficiency steam-water separation device destined for nuclear power stations. In the light of the complexity of the two-phase flow in a wave-shaped plate type steam-water separator, a cold-state experiment was performed under the condition of changing structural parameters and working states. The separation efficiency was measured by using a glass fiber filtration method. It has been found that the efficiency of a wave-shaped plate steam-water separator with water collection hooks is far higher than that of a separator without the hooks. To lengthen the pleated edge has little influence on efficiency. To enhance the separation efficiency, the inflexion angle should be set at 54 degrees, and the plate spacing, at 20 mm. The critical value of the gas flow velocity is 5 m/s. When the flow speed is in excess of the critical value, the water film will rupture, a secondary entrainment or carryover will increase significantly and the dewatering efficiency will drop. The optimum structural parameters obtained from an analysis of the test data can be used for guiding the design of the device under discussion.

关 键 词： 汽水分离器 分离效率 波形板 结构参数 临界风速

领　　域： [动力工程及工程热物理]