公开(公告)号：US10739174B2

公开(公告)日：2020-08-11

申请号：US16734174

申请日：2020-01-03

申请人： Yanqin Li

发明人： Yanqin Li ,  Shuaijie Sun

IPC分类号： G01F1/66

摘要： A method is provided to measure a distribution of axial velocities and a flowrate in a pipe or a vessel. The method comprises selecting a single cross-section at a stable-flow segment in a pipe or a vessel, installing a plurality of acoustic wave sensors along a peripheral wall of the pipe or the vessel to form a plurality of effective sound wave paths; measuring sound wave travelling time on each sound wave path; substituting the measured sound wave travelling time into the model formula based on a sound path refraction principle for reconstruction calculation to obtain a distribution of axial velocity in the measured cross-section of the pipe or the vessel, u(x,y); and integrating the distribution of the axial velocity u(x,y) along the cross-section to obtain a flow rate. A system is also provided to measure an axial velocity distribution and a flow rate in a pipe or a vessel.

公开(公告)号：US20210223076A1

公开(公告)日：2021-07-22

申请号：US16603166

申请日：2018-09-29

申请人： Yanqin LI

发明人： Yanqin LI ,  Shuaijie SUN

IPC分类号： G01F1/66 ,  G01P5/24 ,  G01F7/00

摘要： A method is provided to measure a distribution of axial velocities and a flowrate in a pipe or a vessel. The method comprises selecting a single cross-section at a stable-flow segment in a pipe or a vessel, installing a plurality of acoustic wave sensors along a peripheral wall of the pipe or the vessel to form a plurality of effective sound wave paths; measuring sound wave travelling time on each sound wave path; substituting the measured sound wave travelling time data into the model formulas based on a sound path refraction principle for reconstruction calculation to obtain a distribution of axial velocity in the measured cross-section of the pipe or the vessel, u(x,y); and integrating the distribution of the axial velocity u(x,y) along the cross-section to obtain a flow rate. A system is also provided to measure an axial velocity distribution and a flow rate in a pipe.

公开(公告)号：US11454642B2

公开(公告)日：2022-09-27

申请号：US16603166

申请日：2018-09-29

申请人： Yanqin Li

发明人： Yanqin Li ,  Shuaijie Sun

IPC分类号： G01P5/24 ,  G01F1/66 ,  G01F7/00 ,  G01H5/00

摘要： A method is provided to measure a distribution of axial velocities and a flowrate in a pipe or a vessel. The method comprises selecting a single cross-section at a stable-flow segment in a pipe or a vessel, installing a plurality of acoustic wave sensors along a peripheral wall of the pipe or the vessel to form a plurality of effective sound wave paths; measuring sound wave travelling time on each sound wave path; substituting the measured sound wave travelling time data into the model formulas based on a sound path refraction principle for reconstruction calculation to obtain a distribution of axial velocity in the measured cross-section of the pipe or the vessel, u(x,y); and integrating the distribution of the axial velocity u(x,y) along the cross-section to obtain a flow rate. A system is also provided to measure an axial velocity distribution and a flow rate in a pipe.

公开(公告)号：US20200141776A1

公开(公告)日：2020-05-07

申请号：US16734174

申请日：2020-01-03

申请人： Yanqin LI

发明人： Yanqin LI ,  Shuaijie SUN

IPC分类号： G01F1/66

摘要： A method is provided to measure a distribution of axial velocities and a flowrate in a pipe or a vessel. The method comprises selecting a single cross-section at a stable-flow segment in a pipe or a vessel, installing a plurality of acoustic wave sensors along a peripheral wall of the pipe or the vessel to form a plurality of effective sound wave paths; measuring sound wave travelling time on each sound wave path; substituting the measured sound wave travelling time into the model formula based on a sound path refraction principle for reconstruction calculation to obtain a distribution of axial velocity in the measured cross-section of the pipe or the vessel, u(x,y); and integrating the distribution of the axial velocity u(x,y) along the cross-section to obtain a flow rate. A system is also provided to measure an axial velocity distribution and a flow rate in a pipe or a vessel.