摘要
为研究高温高压且工作介质为蒸汽的情况下超临界火电站迷宫式调节阀的迷宫式流道结构,用CFD方法计算了迷宫式流道流场,通过常温常压试验数据验证了流动计算方法的正确性,并利用单向流固耦合方法计算了盘片应力场,分析了倒角、流道深度、进出口宽度、盘片厚度对流道流场、盘片应力的影响。结果表明,倒角、进口宽度、流道深度等参数对流量影响较大,而出口宽度对其影响较小;进口宽度、盘片厚度等参数对盘片应力分布影响较大,而倒角对其影响较小。
To investigate the labyrinth channel structure of labyrinth regulating valve~ for supercritical thermal power plant under conditions of high-temperature high-pressure with steam medium, the fluid field was calculated by using CFD method, which had been verified by experimental data. The disc stress field was calculated by using one-dimensional fluid solid coupling method. And then it analyzes the impact of chamfer, channel depth, inlet ~ outlet width and disc thickness on the channel flow field and disc stress field. The results show that the chamfer, inlet width and channel depth have greater im- pact on flow than that of outlet width; inlet width and disc thickness have greater impact on stress than that of the chamfer.
出处
《水电能源科学》
北大核心
2013年第9期189-192,共4页
Water Resources and Power
基金
上海市科学技术委员会科技人才计划基金资助项目(12XD1420100)
关键词
迷宫式调节阀
迷宫式流道结构
流场
应力
超临界火电
ulabyrinth regulating valve
labyrinth channel structure
flow fieid
stress
supercritical thermal power
