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Intelligent ultraviolet gas analyzer

A gas analyzer, smart technology, applied in the field of precision instruments

Inactive Publication Date: 2009-09-09
CHONGQING CHUANYI AUTOMATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the various application problems of the flue gas online analyzer, the present invention proposes an intelligent ultraviolet gas analyzer, which detects the gas concentration under the condition that the original incident light intensity can be obtained, and uses a double division circuit for data processing , to directly obtain a voltage or current signal that has a fixed corresponding relationship with the measured gas concentration

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0045] Such as figure 1 As shown, the ultraviolet analyzer of the present invention is composed of an ultraviolet light source 1, a narrow-band interference filter 7, a measuring gas cell 9, a reference side photodetector 10, and a measurement side photodetector 11. A rotatable light-cutting wheel 4 is provided on the side, and a gas filter 3 and a purple glass 5 are respectively provided at both ends of the light-cutting wheel 4. The gas filter 3 and the purple transparent glass 5 can be placed at the outlet of the ultraviolet light source 1 in turn through the rotation of the light cutting wheel 4 according to the need for light intake during actual measurement. The cutting motor 2 provides power for the cutting wheel 4.

[0046] The ultraviolet light source 1 uses a xenon flash lamp.

[0047] A partially reflecting lens 8 for increasing the reflected light is provided in the measuring gas chamber 9.

[0048] An adjustment lens 6 for adjusting the ultraviolet light to parallel l...

Embodiment 2

[0069] The other structure is the same as that of Embodiment 1, the difference is that the ultraviolet light source 1 uses a hollow cathode lamp, and the reference side photodetector 10 and the measurement side photodetector 11 both use photomultiplier tubes.

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Abstract

The invention discloses an intelligent ultraviolet gas analyzer. The intelligent ultraviolet gas analyzer consists of an ultraviolet light source, a narrow-band interference filter, a measurement gas chamber, a photoelectric detector at a reference side and a photoelectric detector at a measurement side. A side edge of an outlet of the ultraviolet light source is provided with a rotatable light sectioning wheel, and two ends of the light sectioning wheel are respectively provided with a gas light filter which can be alternately placed at the outlet of the ultraviolet light source by rotation of the light sectioning wheel and uviol. The intelligent ultraviolet gas analyzer can accurately measure contents of SO2, NOx and H2S which are main flue gas in real time, achieves lower measurement range of 0-100PPm, higher sensitivity and better stability, and has service life of 8-10 years.

Description

Technical field [0001] The invention relates to the field of precision instruments. Specifically, the invention is an intelligent ultraviolet gas analyzer. The intelligent ultraviolet gas analyzer is used to measure the content of sulfur dioxide, hydrogen sulfide and nitrogen oxides discharged into the atmosphere. Background technique [0002] At present, due to the continuous and rapid economic development, the demand for electricity and coal energy continues to rise, which makes my country's sulfur dioxide, hydrogen sulfide and nitrogen oxide emissions continue to rise. These gases emitted into the atmosphere will affect the natural ecological environment and the survival of the people. The environment has a direct and serious impact. [0003] Every year, my country has to pay hundreds of billions of dollars in economic losses caused by these emissions. From the perspective of sustainable development strategies and the improvement of people’s livelihood, my country has issued e...

Claims

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Application Information

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IPC IPC(8): G01N21/33G02B7/00
Inventor 黄鑫胡体宝周权
Owner CHONGQING CHUANYI AUTOMATION
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