|
|
Experimental study on a new self-priming equipment of centrifugal pumps |
YANG Feng-ge1, LIU Hou-lin1, TAN Ming-gao1, YANG Feng-lei2 |
1.Technical and Research Center of Fluid Machinery Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.School of Information Engineering, University of Finance and Economy, Zhengzhou, Henan 450002, China |
|
|
Abstract In order to realize the self-priming for normal centrifugal pumps,a new self-priming equipment with simple structure was designed,which can be maintained conveniently and combined to centrifugal pump as a whole.The design of this equipment was based on the technique of self-priming tanks.A jetting-recycle system was added to the self-priming tank.When the pump starts,the equipment begins to work,which increases the speed of mixing gas and liquid in the pump inlet,as well as the separating speed in the pump outlet.So the self-priming time decreases significantly.The experimental results indicate that the new equipment can decrease the self-priming time evidently,the minimum self-priming time is just 11 s,and the performance curve is steady and smooth.The external characteristic of centrifugal pump is not influenced,the pump efficiency is decreased by 1.83% at design point.So the equipment can meet engineering needs.
|
Received: 08 August 2013
|
|
|
|
[1] 梁文彦,梁险峰,周为.气液分离自吸器[P].CN 200410020800.6,2005-12-28[2] 刘建瑞,周贵平,施卫东.新型高效自吸喷灌泵的设计与试验[J].排灌机械,2006,24(4):1-4[3] 刘建瑞,施卫东,叶忠明.离心泵射流自吸装置的研究[J].农业工程学报,2006,22(1):89-92[4] Ramacciotti Romeo.Self priming centrifugal pump[P].US PCT/IT0200419,2003-01-03[5] 吴玉祥.增设自吸装置代替水下底阀[J].设备管理与维修,1999(10):30[6] 田庆来,刘永新.自吸罐的设计[J].化工设计通讯,2002,28(4):56-58[7] 叶忠明.射流式自吸离心泵的设计理论、数值模拟及实验研究[D].江苏大学,2005[8] 颜和平.自吸泵气水分离室对自吸性能影响的试验[J].流体机械,1996,24(11):39-40[9] 吕智君,兰才有,王福军.自吸泵研究现状及发展趋势[J].排灌机械,2005,23(3):1-5[10] 关醒凡.现代泵技术手册[M].北京:宇航出版社,1995 |
|
|
|