冷却塔专用新型双级贯流式水轮机的转轮直径优化  

Runner Diameter Optimization of Dedicated Double-stage Cross Flow Hydraulic Turbine for Cooling Tower

作　　者：黄敏[1] 屈波[1] 皮雪松 许卓[1] 

机构地区：[1]河海大学能源与电气学院,江苏南京210098 [2]贵州乌江水电开发有限责任公司乌江渡水电厂,贵州遵义563000

出　　处：《机械制造与自动化》2013年第2期152-153,174,共3页Machine Building & Automation

摘　　要：基于连续方程、动量方程和湍流方程的k-ε模型,对冷却塔专用的贯流式水轮机进行了多转轮直径尺寸下二维定常数值模拟,获得了流场的速度、压力分布变化规律,并且对5种尺寸下的数值模拟结果进行比较分析,从而确定了一个效率优先目标下的最终转轮直径方案。According to two-dimensional steady value simulation of multi-wheel diameter size of tubular turbine for cooling tower and based on the continuity equation, momentum equation and turbulence k-ε equations, the speed of the flow field and pressure distribu- tion variation can be gat. The final priority efficient runner diameter program is determined by comparison among the results of the five sizes.

关 键 词：双级贯流式水轮机 冷却塔 转轮直径优化 

分 类 号：TK730.2[交通运输工程—轮机工程]