圆孔式新型流量计特性研究  

Research on the Characteristics of Round Hole of the New Flowmeter

作　　者：乔乐 吴剑 李永业[1] 

机构地区：[1]太原理工大学水利科学与工程学院,山西太原030024

出　　处：《中国农村水利水电》2018年第1期161-164,共4页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(51109155;51179116);山西省自然科学基金项目(2015011067)

摘　　要：基于孔口出流的原理,研究设计了圆孔式新型流量计。通过试验研究的方法研究了圆孔式流量计的输水流量与输水开度,压力水头之间的关系。研究表明,该装置在输水开度一定时,输水流量随着压力水头的增大而增大,呈乘幂函数关系,开度对压力敏感系数的影响不大;压力水头一定时,输水开度随着输水流量的增大趋势而增大;同时拟合得到了该流量计输水流量、开度、压力水头之间的经验公式,经验公式的计算值与实测值有较好的一致性。研究为该新型流量计在现代工业中被推广使用具有重要价值。Based on the principle of orifice outflow,this paper designed round hole of the new flow meter. The relationship between the water opening degree,the pressure head and the flow of round hole of flow meter is obtained by experimental research. The results show that the water flow rate of the device increases with the increase in the pressure head when the water opening degree of the device is constant,which is multiplied by the power function. And the water opening degree has little effect on the pressure sensitivity coefficient. When the pressure head is constant,the opening of the water outlet increases with the distribution flow. And it obtains the empirical formula of the flow rate,water opening degree and pressure head of the flow meter,and there is a good consistency with the measured value. The research on this paper is of great value for the popularization and application of the new flow meter in modern industry.

关 键 词：流量计 测流 控流 

分 类 号：TV132[水利工程—水力学及河流动力学]