基于多普勒法管道流量的测量方法研究
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摘要
针对中国流量测量技术上准确度、资源利用率低的问题,提出了一种基于多普勒法管道流体流量的测量方法。经研究,采用平凹声透镜对超声波的发送及接收进行汇聚,缩小多普勒信息窗的体积,实现多普勒法对管道内流体流速分区域测量。通过对流量测量系统仿真及所测得的数据,验证了此方法的可行性;此外,设计的基于多普勒法流量测量实验系统结果表明应用此方法测量流体的精度高于1.8%,对提高流量测量精度具有重要意义。
In China,there are some problems that low accuracy of technology and low utilization rate of resource in flow measurement,a measurement method of pipe flow based on Doppler is proposed. The information of ultrasonic transmitting is converged and received by Plano concave lens in order to reduce the volume of Doppler information window. The subarea measurement method of Pipe fluid velocity can be realized based on Doppler. The feasibility of proposed method have be verified through the simulation of flow measurement system and the date from simulation system.In addition, an experimental system of flow measurement based on Doppler method is designed, experimental result shows that the precision of this system in flow measurement can exceed 1.8% and has vast importance to the improve the accuracy of the flow measurement.
In China,there are some problems that low accuracy of technology and low utilization rate of resource in flow measurement,a measurement method of pipe flow based on Doppler is proposed. The information of ultrasonic transmitting is converged and received by Plano concave lens in order to reduce the volume of Doppler information window. The subarea measurement method of Pipe fluid velocity can be realized based on Doppler. The feasibility of proposed method have be verified through the simulation of flow measurement system and the date from simulation system.In addition, an experimental system of flow measurement based on Doppler method is designed, experimental result shows that the precision of this system in flow measurement can exceed 1.8% and has vast importance to the improve the accuracy of the flow measurement.
引文
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[2]姜建平,谢双喜,陈学政,等.海上油田井下油水分离系统的优化设计[J].长春理工大学学报:自然科学版,2010,33(4)122-125.
[3]薛克娟.基于超声多普勒效应热计量技术研究[D].长春:长春理工大学,2016.
[4]张琢,陈中,钟丽.超声波在医学上的运用[J].计量学报,2005,26(3):221-224.
[5]王中宇,张海滨,刘智敏.流量测量技术在石油开采上的运用[J].计量学报,2006,27(3):201-205.
[6]王玉田,崔立超,葛文谦,等.流量计的发展[J].计量学报,2006,27(3):224-227.
[7]张洪涛,段发阶,丁克勤,等.开普勒技术的运用与研究[J].计量学报,2007,28(4):311-313.
[8]白福忠,包晓艳,李义军.数字图像处理[J].计量学报,2007,28(4):314-316.
[9]龙华伟,翟超,胡冬青,等.DSP芯片的应用[J].计量学报,2008,29(1):60-64.
[10]Liu JW,Liao W Q,Gui H,et al.Exploration of the construction of online courses in engineering training education[C].Proceeding of the 9th international conference on modern industrial training,New York,2009.
[11]刘彬,蒋金水,赵武,等.基于DSP的嵌入式研究[J].计量学报,2007,28(3):272-275.
[12]G Z Xiao,A Adnet,Z Zhang.Monitoring Changes in the Refractive index of Gases by Means of a Fiber Optic Fabry-Perot Interferometer Sensor[J].Sensors and Actuators,2005,5(1):168-173.
[13]宋明顺,陈意华,陶靖轩,等.数字信号处理系统及应用[J].计量学报,2005,26(1):90-92.
[14]陈强华,闫聚群,柳忠尧,等.工程信号处理技术[J].计量学报,2004,25(3):203-206.
[15]D.C Wilcox,Turbulence modeling for CFD[J].DCW Industries,1994,3(5):132-138.