摘要
以三个不同流量系数的模型级为研究对象,对其无叶扩压器进口部分进行了详细分析。首先分析了大流量系数模型级内部流动存在的问题,并进行了相应的改进设计与计算,通过比较改进前后的计算结果与内部流动情况,发现采用旋转扩压器形式对于流动改善效果显著。在大流量系数模型级取得的经验基础上相续取得了中等与小流量系数模型级的改进方案,结果显示旋转扩压器形式的改进方案同样效果显著,进一步说明该方法适用于不同流量系数的模型级。
In this paper,set the three model stages with different flow coefficient as the research subject,the inlet of vaneless diffuser is analyzed in detail.First,this paper has analyzed the problems existing in the internal flow of the model stage with large flow coefficient,and the corresponding improving design and calculation is carried out.Through comparing the calculation results and internal flow before and after improvement,it is found that the application of rotating diffuser can improve the flow effect significantly.Based on the experiences obtained from the model stage with large flow coefficient,the improvement scheme for the model stages with medium and small flow coefficient is got.The result shows that the improvement scheme with rotating diffuser has obtained the same significant effect.It is further stated that this method is suitable for the model stage with different flow coefficient.
出处
《风机技术》
2012年第6期16-21,共6页
Chinese Journal of Turbomachinery
关键词
流量系数
模型级
旋转扩压器
flow coefficient
model stage
rotating diffuser
