A single return ultra-low range ultraviolet analyzer and its analysis method

Abstract

The invention discloses a single return ultra-low measurement range ultraviolet analyzer and an analysis method thereof. The single return ultra-low measurement range ultraviolet analyzer comprises a housing, a temperature controller, a solid state relay, a spectrometer temperature control module, a low-measurement range gas chamber module and an oxygen sensor, wherein the outer side of the lower portion of the housing is provided with a flow meter, the bottom end inside the housing is provided with a HMI plate, the temperature controller is arranged inside the housing above the HMI plate, the solid state relay is arranged above the temperature controller, the spectrometer temperature control module is positioned at the right side of the temperature controller and the solid state relay, and the low-measurement range gas chamber module is arranged above the spectrometer temperature control module. According to the present invention, SO2, NO and the like are detected with the deep ultraviolet wave band so as to be one magnitude grade higher than the sensitivity of the visible light wave band; the one reflection is performed to increase the absorption optical path without the increasing of the length, such that the ultra-low measurement range measurement can be performed; the temperature controller and the spectrometer temperature control module are used, such that the problem of the low test accuracy due to the temperature drift can be avoided; and the single return ultra-low measurement range ultraviolet analyzer and the analysis method thereof are suitable for the measurement of the 0-100 ppm measurement range components.

Description

technical field [0001] The invention relates to an ultraviolet analyzer, in particular to a single-return ultra-low range ultraviolet analyzer and an analysis method thereof. 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. 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, my country has introduced environmental protection regulations in recent years, which stipulates clear indicators on flue gas emissions. , and imple...

AI Technical Summary

Problems solved by technology

Among them, the instrument using the principle of infrared absorption detection, due to the limitation of the monitoring principle, the detection limit of this method is low, the stability of the instrument is poor, and the interference ability, especially the ability to resist background gas interference is poor, which limits the infrared gas analyzer. In some special occasions; and there is no mature, reasonable structure of a single return ultra-low range UV analyzer appears

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