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Measuring device and method for two-phase flow system internal particle motion trajectory

A technology of movement trajectory and measuring device, which is applied to the measurement device of particle movement trajectory in the two-phase flow system. In the field of two-phase flow technology, it can solve the problems of single or multiple particle tracking measurement and limitation, and achieve the measurement results. Accurate and reliable, improve accuracy, and realize the effect of full-field measurement

Active Publication Date: 2014-04-30
SOUTHEAST UNIV
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Problems solved by technology

This method effectively realizes the optical measurement of two-phase flow parameters in small-diameter pipelines without causing interference to the fluid; however, this method is limited to small-diameter pipes and cannot track and measure single or multiple particles

Method used

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  • Measuring device and method for two-phase flow system internal particle motion trajectory
  • Measuring device and method for two-phase flow system internal particle motion trajectory

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Such as figure 1 Shown is a measurement device for particle motion trajectory in a two-phase flow system, including a laser emission system composed of an argon ion laser 1, a first cylindrical lens 2, a second cylindrical lens 3 and a reactor 4, and a first optical Receiver 5, the second optical receiver 7, the third optical receiver 9, the first photomultiplier tube 6, the second photomultiplier tube 8, the third photomultiplier tube 10, the filter 11 and the computer 12 form the photoelectric conversion detection system.

[0032] The argon ion laser 1, the first cylindrical lens 2, the second cylindrical lens 3 and the reactor 4 are successively arranged at intervals on the same straight line 1; three optical receivers take the reactor 4 as the center of circle and surround the circumference of the reactor 4 The sides are evenly arranged, and each optical r...

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Abstract

The invention discloses a measuring device and method for a two-phase flow system internal particle motion trajectory. The measuring device comprises a laser emission system and a photovoltaic conversion detection system, wherein the laser emission system is composed of an argon ion laser, a first cylindrical lens, a second cylindrical lens and a reactor, and the photovoltaic conversion detection system is composed of three optical receivers, three photomultiplier tubes, a filter and a computer. The three optical receivers are evenly arranged around the peripheral side of the reactor by using the reactor as a circle center. According to the measuring method, non-immersive measurement is included, the measuring device does not need to be placed into the reactor, the influence of the measuring device on two-phase flow inside the reactor is avoided, measuring accuracy is improved, and the measuring result is precise and reliable; the argon ion laser is used as a light source and replaces an X-ray source, the cost of an X-ray detector is omitted, and the measuring device is economical, practical, safe and reliable.

Description

technical field [0001] The invention relates to a measuring device and a measuring method for particle movement tracks in a two-phase flow system, belonging to the two-phase flow technology. Background technique [0002] Gas-solid / liquid-solid two-phase flow has been widely used in energy, chemical, metallurgy, power and other industries. Measuring the trajectory of particles in two-phase flow is of great significance for mastering the state of particle movement in two-phase flow and studying gas-solid / liquid-solid two-phase reactions. The earliest methods at home and abroad to measure the trajectory of particles in gas-solid / liquid-solid two-phase flow mainly include reflective optical fiber method and radiation projection imaging technology. The reflective optical fiber method is to bury the probe of the reflective optical fiber sensor in the fluidized bed to be measured, and the light emitted by the light source is reflected and received by the photodetector, so as to ob...

Claims

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Application Information

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IPC IPC(8): G01M10/00
Inventor 钟文琪周冠文陈曦邵应娟张勇金保昇
Owner SOUTHEAST UNIV
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