大口径活塞泵吸入容积效率实时测量方法研究  

Study on methods of real-time measuring suction volumetric efficiency of large-calibered piston pumps

作　　者：郭光明[1,2,3] 张小兰 董玉禄[1] 王亚男[2,3] 吴淼[1] 

机构地区：[1]中国矿业大学(北京)机电与信息工程学院,北京100083 [2]航天一院十五所 [3]北京长征天民高科技有限公司 [4]北京西姆迪维尔传动技术有限公司

出　　处：《矿山机械》2011年第5期53-57,共5页Mining & Processing Equipment

基　　金：科技部科技型企业技术创新基金(02C26211100499);教育部高等学校博士点基金(20020290011)

摘　　要：为实时测量大口径活塞泵的吸入容积效率,提出采用基于泵送压力测量的方法。首先,建立了吸入容积效率数学模型,搭建压力信号测试系统,分析研究活塞泵在一个工作循环中的压力信号变化,分别研究得出基于泵出口管道压力、主油缸压力及称重测量泵吸入容积效率的计算公式。最后,通过煤泥试验,证明基于泵出口管道压力测量泵吸入容积效率的方法是可行的,测量值误差小。In order to real-time measure the suction volumetric efficiency of the large-calibered piston pump,a kind of method is proposed based on pumping pressure measuring.Firstly,the mathematical model of suction volumetric efficiency is build.Secondly,the pressure signal measuring system is set up.The variation of pressure signals of piston pump during a working cycle is analyzed,and the formula of calculating pump suction volumetric efficiency is obtained based on the pump outlet pressure,master cylinder pressure and weight measurement.Finally,the slurry tests show that the method is feasible and has tiny deviation.

关 键 词：高浓度粘稠物料 大口径活塞泵 吸入容积效率 泵送压力 

分 类 号：TH38[机械工程—机械制造及自动化]