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当前位置: 首页 > 文章 > 层流炉二维PIV自动控制系统 农业机械学报 2012,43 (3) 94-98
Position: Home > Articles > Design and Experiment of the Two-dimensional PIV Automatic Control System for Laminar Entrained Flow Reactor Transactions of the Chinese Society for Agricultural Machinery 2012,43 (3) 94-98

层流炉二维PIV自动控制系统

作  者：
杨延强;易维明;李志合;柏雪源;李永军
单  位：
山东理工大学农业工程与食品科学学院;沈阳农业大学工程学院
关键词：
生物质半焦;层流炉;粒子图像测速;自动控制系统
摘  要：
在层流炉冷态粒子图像测速(PIV)系统中,相机与测量管的相对位置是保证试验数据精确的重要条件。为使试验过程中整个PIV系统操作起来更加方便、准确、快捷,设计了二维PIV自动控制系统,并在层流炉冷态模拟装置上对该系统的可靠性进行了试验验证。与没有使用二维PIV自动控制系统之前的试验结果相比:各测量段颗粒的轴向中心速度相互之间的衔接实现了平滑过渡,消除了跳跃性变化;收集距离为350 mm,主气流流量为1.5 m3/h时,层流炉内颗粒停留时间的相对误差为9.218%。说明该二维PIV自动控制系统能够满足层流炉冷态试验需要,实现了均匀、连续拍摄,减少了人为误差,提高了试验数据的准确性。
译  名：
Design and Experiment of the Two-dimensional PIV Automatic Control System for Laminar Entrained Flow Reactor
作  者：
Yang Yanqiang1 Yi Weiming2 Li Zhihe2 Bai Xueyuan2 Li Yongjun2(1.School of Engineering,Shenyang Agricultural University,Shenyang 110161,China 2.School of Agricultural and Food Engineering,Shandong University of Technology,Zibo 255049,China)
关键词：
Biomass char,Laminar entrained flow reactor,Particle image velocimetry(PIV),Automatic control system
摘  要：
In the cold PIV(particle image velocimetry) system of the laminar entrained flow reactor,the relative position between the camera and the measuring tube was an important condition to ensure accurate test data.To make the PIV operation more convenient,accurate,and fast in the test,two-dimensional PIV automatic control system was designed.And the reliability of the system was tested in the cold simulation equipment of laminar flow furnace,compared with no using two-dimensional PIV automatic control system,the results showed that in different sections of the measuring tube,the particle speed of the axial center achieves a smooth transition,and eliminates the jump change;when collection distance is 350mm and main air flow rate is 1.5 m3/h,the relative error of particle residence time is 9.218%;and the operation saves time and effort in the test process.These suggested that the two-dimensional PIV automatic control system could satisfy the cold test of the laminar entrained flow reactor needs,achieve uniform and continuous test,reduce human error and improve the accuracy of test data.

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