离心泵增速时临界汽蚀余量的变化The Critical NPSH Chang with Rotating Speed Increased of Centrifugal Pump
李文广
Li Wenguang;
摘要(Abstract):
本文着重分析了汽蚀的比R效应,推导出新的离心泵增速时的临界汽蚀余量相似定律。在现有大量工业试验数据的基础上,给出了新的汽蚀比R效应函数。
This paper analyzed the scale effects on cavitation for centrifugal pumps and derived a formula to calculate the critical NPSH when the rotating speed has been increased. Based upon a lot of existing testing data in industry, a new function related to the scale effects on cavitation is presented.
关键词(KeyWords):
基金项目(Foundation):
作者(Authors):
李文广
Li Wenguang;
参考文献(References):
- [1] 张俊生,水泵技术,№ 2,1980.
- [2] 王安生等,水泵技术,№ 2,1980.
- [3] 战长松等,流体工程,№ 11,1989.
- [4] 何希杰,水泵技术,№ 3,1984.
- [5] 关醒凡,泵的理论与设计,机械工业出版社,1987.
- [6] Gopalakrishman, S., Proceedings of the and International Pump Symposium, 1985.
- [7] 常近时等,水轮机运行,水利电力出版社,1983.
- [8] 弗·亚·卡列林,离心泵与轴流泵中的汽蚀现象,机械工业出版社,1985.
- [9] 金哲学,力学与实践,№ 1,1985.
- [10] 肖明耀,误差理论与应用,计量出版社,1985.