壅塞空化器设计及其处理污水的可行性研究  

The Choking Cavitator Design and Its Feasibility Study of Wastewater Treatment

作　　者：张凤华[1] 徐俊超[1] 刘海锋[1] 唐川林[1] 苏新[1] 李念[1] 

机构地区：[1]湖南工业大学机械工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2012年第4期30-36,共7页Journal of Hunan University of Technology

摘　　要：在分析直管中气液两相混合流的壅塞空化现象,射流泵发生极限工况时的壅塞空化现象,经过倒角的圆柱管在定常和非定常流动下的壅塞空化现象,在阶梯圆管中的稳态绝热闪蒸流中的壅塞空化现象的基础上,提出了一种新型的空化器——壅塞空化器;通过采集分析空化噪声和处理模拟污水(苯酚溶液)的实验,对壅塞空化器在污水处理应用中的可行性进行了初步研究。实验结果表明:壅塞空化器模拟处理污水的效果较好,其空化能量比振荡腔喷嘴高,从而为国内外研究空化发生器开辟了一条新途径。A new choking cavitator is proposed on the basis of analyzing the choking cavitation phenomena, which occurs in the straight pipe of gas-liquid two-phase flow, in jet pump under the operating limits, in a cylindrical pipe with a sharp edged-corner for the steady and unsteady flows as well as in a pipe involving an abrupt enlargement of steady-state adiabatic flashing flow. Through the analysis of cavitation noise signals collected and the experiments of treating the simulated wastewater （phenol solution）, the preliminary research of the feasibility of choking cavitator in the application of wastewater treatment is carried out. The results show that the effect of treating simulated wastewater with the choking cavitator is obvious, and the cavitation energy produced by the choking cavitator is higher than that by self-oscillated chamber nozzle. Thus provides a new way for cavitator study at home and abroad.

关 键 词：空化 壅塞 气液两相临界流 壅塞空化器 空化噪声 

分 类 号：TP602[自动化与计算机技术—控制理论与控制工程] X703[自动化与计算机技术—控制科学与工程]