往复式泵失速水击特性的试验研究  

Experimental Analysis on Characteristics of Water Hammer in Reciprocating Pump Loss of Normal Speed

作　　者：奚斌[1,2] 刘扬[1] 韩洪升[1] 周济人[2] 钟开伟 

机构地区：[1]东北石油大学提高油气采收率教育部重点实验室,黑龙江大庆163318 [2]扬州大学水利科学与工程学院,江苏扬州225009 [3]金湖县水务局,江苏金湖211600

出　　处：《灌溉排水学报》2013年第3期74-78,共5页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(50706041);"十二五"国家科技支撑项目(2012BAD08B03-2)

摘　　要：为了研究往复式泵失速产生水击的特性,通过试验装置采集并分析了阀门速开速关和阀门速关工况下试验管道上11个断面自水击发生至其衰减结束整个过程中的压力变化。结果表明,阀门速开速关工况下,水击压力相对较小,衰减时间短,水击锤击数较高,高水击锤击数断面比率较大,其沿程衰减速度慢;阀门速关工况下,水击压力相对较大,衰减时间长,水击锤击数沿程衰减速度快,水击锤击数较少。关注阀门速关水击的同时,也要重视往复式泵失速引起的高水击锤击数水击现象。In order to study the characteristics of water hammer on reciprocating pump loss of its normal speed, the pressures of eleven cross-sections were acquired and their changes were analyzed under two kinds of operating conditions. The rusults indicated that： when the valves were quickly opened and closed, water hammer pressure, the rate and time of decay were lower, and the water hammer hammering number on each cross-section was relatively large; when the valves were closed quickly, water hammer pressure was higher, the rate of decay was faster on water hammer hammering number, decay time was long and water hammer hammering number was smaller. High frequency hammer fatigue and potential damage caused by large water hammer hammering number should be also concerned except that paying attention to the damage on pipes caused by high water hammer pressure.

关 键 词：往复式泵 失速 水击 水击锤击数 速开速关 衰减 

分 类 号：TH38[机械工程—机械制造及自动化]