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Light intensity signal measuring system in multi-phase optical catalytic reactor and method of use thereof

A technology for a photocatalytic reactor and a measuring system, which is applied in the field of measuring systems for light intensity fluctuation signals inside a heterogeneous photocatalytic reactor, can solve the problems of complex structure of the light intensity meter, cumbersome measuring methods, narrow measuring range, etc. Simple, easy to operate, small size effect

Inactive Publication Date: 2007-09-19
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The task of the present invention is to provide a light intensity signal measurement system in a multiphase photocatalytic reactor and its application method, to adapt to the measurement of light intensity signals under various multiphase medium working conditions, and to solve the problem of multiphase photocatalytic reactor The problem of internal light intensity signal measurement, as well as the complex structure of existing light intensity meters, narrow measurement range, cumbersome measurement methods, and poor adaptability

Method used

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  • Light intensity signal measuring system in multi-phase optical catalytic reactor and method of use thereof
  • Light intensity signal measuring system in multi-phase optical catalytic reactor and method of use thereof
  • Light intensity signal measuring system in multi-phase optical catalytic reactor and method of use thereof

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Embodiment 1

[0017] The light intensity sensor 1 of the present invention is a needle-shaped sensor made of a metal sleeve 6 with a diameter of 0.2-0.5mm and a metal sleeve 6 with a diameter of 1-2mm and a length of 200-500mm. There are scales marked, and the metal sleeve 6 is filled with sealant 9, so that the positions of the two bundles of optical fibers and the metal protective cover are relatively fixed. The end face of the light intensity sensor 1 is sealed with quartz glass 7 to make a miniature light intensity sensor 1. The other end of the light intensity sensor 1 is sealed with heat-shrinkable plastic 10 to protect the optical fibers from breaking. The two bundles of optical fibers are respectively covered with protective hoses 8 with a length of 1 to 2 m, and are respectively connected to the optical fiber sensors of the light intensity meter host 2 through joints. on interface 11.

[0018] The host 2 of the light intensity meter of the present invention includes an optical fibe...

Embodiment 2

[0020] The application method of the light intensity signal measurement system in the heterogeneous photocatalytic reactor of the present invention is used in the measurement of the light intensity distribution and fluctuation signal in the multiphase photocatalytic reactor.

[0021] In the present invention, the tail joints of the light intensity sensor 1 are respectively connected to the optical fiber sensor interface 11 of the light intensity meter host 2 to connect and fix; the communication interface 17 of the light intensity meter host 2 is connected and fixed with the communication interface of the computer with the signal output cable 3, and the light is turned on. Strengthen the power supply of the instrument host 2, preheat for 20 to 30 minutes, and run the data analysis software. First insert the light intensity sensor 1 into the measuring hole of the heterogeneous photocatalytic reactor to adjust the sensitivity, first press the zero adjustment key on the light inte...

Embodiment 3

[0023] The application method of the light intensity signal measurement system in the heterogeneous photocatalytic reactor of the present invention is used in the absolute light intensity measurement in the heterogeneous photocatalytic reactor.

[0024] In the present invention, when the absolute light intensity signal needs to be measured, the light intensity signal measurement system is first calibrated, that is, the light intensity sensor 1 of the light intensity signal measurement system and the sensor of the ordinary light intensity measuring instrument are respectively facing the light source for measurement in the atmospheric environment Use parallel light to measure the light intensity at the same position, and obtain the average value of the two groups of measured light intensities by changing the brightness or distance of the light source and establish the corresponding relationship between the two groups of data. Then according to the method of Embodiment 2, the ligh...

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Abstract

The present invention discloses a measuring system of the light intensity signals in a multiphase catalysis reactor. The measuring system of the light intensity signals consists of a light intensity sensor communicated with the host of a light intensity instrument through the optical fiber. A light filter plate, a photoelectric detector, an amplifier, an A / D converter, a micro-processing system, etc. The light intensity sensor consists of two beams of single filaments of optical fiber which is provided with metal pipes with scales outside and quartz glass for sealing the opening on the end surface. In the method, the light intensity sensor is inserted into the measuring hole of the multiphase catalysis reactor and light signals are collected and are then transformed into electricity signals, and then the signals are amplified and A / D transformed to obtain digital light signals. The measuring system in the present invention having a simple structure, a convenient operation and the light intensity sensor having a small volume and a high sensitivity are especially suitable for the measuring of the light intensity signals and the fluctuation thereof in the situations of vapour-liquid, vapour-solid, liquid-solid, vapour-liquid-solid, etc.

Description

technical field [0001] The invention relates to a light intensity signal measurement system and an application method thereof, in particular to a measurement system for a light intensity fluctuation signal inside a heterogeneous photocatalytic reactor and an application method thereof. The invention is suitable for measuring light intensity signals under various working conditions such as gas-liquid, gas-solid, liquid-solid and gas-liquid-solid. technical background [0002] The heterogeneous photocatalytic reaction system has the characteristics of high macro-mixing degree, large reaction specific surface area, small mass transfer resistance and effective use of light energy. New technology fields such as pollutants have attracted much attention from researchers at home and abroad, and are the key to the practical application of photocatalytic technology. [0003] Light intensity distribution and random fluctuations in photoreactors are inherent phenomena in heterogeneous ...

Claims

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Application Information

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IPC IPC(8): G01J1/44
Inventor 郝晓刚韩念琛张忠林李洪辉樊彩梅刘世斌孙彦平
Owner TAIYUAN UNIV OF TECH
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