Intelligent ultraviolet gas analyzer

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

Inactive Publication Date: 2012-09-26
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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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like figure 1 As shown, the ultraviolet analyzer of the present invention is made up of ultraviolet light source 1, narrow-band interference filter 7, measuring gas chamber 9, reference side photodetector 10 and measuring side photodetector 11, at the outlet of ultraviolet light source 1 A rotatable light cutting wheel 4 is arranged on the side, and a gas filter 3 and a purple transparent glass 5 are respectively arranged at both ends of the light cutting wheel 4 . The gas filter 3 and the violet-transparent glass 5 can be placed at the exit of the ultraviolet light source 1 in turn by the rotation of the cutoff wheel 4 according to the light input requirements during actual measurement. The light cutting motor 2 provides power for the light cutting wheel 4 .

[0046] The ultraviolet light source 1 adopts a xenon flashing lamp.

[0047] A partially reflective mirror 8 for increasing reflected light is arranged in the measuring gas chamber 9 .

[0048] An adjusting le...

Embodiment 2

[0069] Other structures are the same as in Embodiment 1, except that: the ultraviolet light source 1 adopts a hollow cathode lamp, and the photodetector 10 on the reference side and the photodetector 11 on the measuring side both adopt 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, in particular, 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 emitted into the atmosphere. Background technique [0002] At present, due to the sustained and rapid economic development, the demand for electricity and coal energy continues to rise, causing my country's sulfur dioxide, hydrogen sulfide and nitrogen oxide emissions to continue to rise. These gases discharged into the atmosphere will have a negative impact on the natural ecological environment and people's survival. The environment has a direct and serious impact. [0003] Every year, our country pays hundreds of billions of dollars for the economic losses caused by these emissions. From the perspective of sustainable development strategy and improvement of people's livelihood and environment,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/33G02B7/00
Inventor 黄鑫胡体宝周权
Owner CHONGQING CHUANYI AUTOMATION
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