无叶腔宽度对旋流泵性能影响的试验研究
Experimental Study on Influence of Bladeless Cavity Width on Performance of Vortex Pumps
王辉 1王丹 2张岩璐2
作者信息
- 1. 西安交通大学能源与动力工程学院,陕西 西安 710049;西安泵阀总厂有限公司,陕西 西安 710025
- 2. 西安泵阀总厂有限公司,陕西 西安 710025
- 折叠
摘要
本文以R30式单斜叶片、R30-F30和R15-F60两种分段双向斜叶片型式的叶轮为研究对象,通过改变过渡段的长度来改变无叶腔宽度,对旋流泵的性能进行了试验研究,对比分析了旋流泵无叶腔宽度对其性能的影响.结果表明:对于旋流泵的扬程而言,扬程在最佳效率点流量之前较为平坦,在最佳效率点流量之后会迅速下降;对于三种不同型式的叶轮,在额定流量下,旋流泵均有一个最佳的无叶腔宽度,在该无叶腔宽度下旋流泵的扬程最高,且随着无叶腔宽度的增加,旋流泵的效率均呈现先减小后增加的趋势.
Abstract
This paper takes the impellers of the R30 single-oblique blade and the two types of segmented bidirectional oblique blades,namely R30-F30 and R15-F60,as the research objects.By changing the length of the transition section to alter the width of the bladeless cavity,an experimental study on the perfor-mance of the vortex pump is carried out,and a comparative analysis is made on the influence of the width of the bladeless cavity of the vortex pump on its performance.The results show that as for the head of the vortex pump,the head is relatively flat before the flow rate at the best efficiency point and will drop rapidly after the flow rate at the best efficiency point.For the impellers of the three different types,under the rated flow rate,the vortex pump has an optimal width of the bladeless cavity.Under this width of the bladeless cavi-ty,the head of the vortex pump is the highest.Moreover,with the increase in the width of the bladeless cavity,the efficiency of the vortex pump first de-creases and then increases.
关键词
旋流泵/无叶腔宽度/水力性能/试验研究Key words
vortex pump/width of bladeless cavity/hydraulic perfor-mance/experimental research引用本文复制引用
出版年
2024
NETL
NSTL
万方数据