Integrated DOAS (differential optical absorption spectroscopy) gas analyzer for monitoring multicomponent poisonous and harmful gases of gardens

Abstract

The invention discloses an integrated DOAS (differential optical absorption spectroscopy) gas analyzer for monitoring multicomponent poisonous and harmful gases of gardens. The integrated DOAS gas analyzer comprises a gas detection part and a gas analyzing part, the gas detection part comprises a telescope, a calibration control box, an optical corner reflector, a diaphragm and a self-correcting lens; a mercury lamp and a mercury lamp lifting motor are arranged in the calibration control box; the calibration control box is located ahead of the telescope, and the diaphragm, the self-correcting lens and the optical corner reflector are sequentially arranged in the rear of the telescope; the gas analyzing part comprises a case, a main control panel, a heat preservation box, a mercury lamp power supply board connected with the main control panel, an upper computer, a spectrograph, a temperature sensor, a heating piece and a status indicator lamp, and the spectrograph, the temperature sensor and the heating piece are arranged in the heat preservation box; the air detection part and the air analyzing part are connected through an optical fiber. The integrated DOSA gas analyzer is highly integrated, simple in operation and stable and reliable, and poisonous and harmful gases in the gardens can be monitored accurately and effectively.

Description

technical field [0001] The invention relates to an integrated park poisonous and harmful multi-component DOAS gas analyzer, which is applied to the field of ambient air quality monitoring in parks. Background technique [0002] With the increasingly serious environmental pollution, people are paying more and more attention to the source control of the source of environmental pollution. In recent years, there have been many pollution leaks or unorganized emissions of toxic and harmful gases exceeding the standard in parks (including chemical parks, etc.), which have brought great hidden dangers to the daily life and personal safety of surrounding residents. In order to maintain the environmental safety of the industrial park and protect the health of surrounding residents, it is necessary to establish an advanced air quality monitoring and early warning system, and develop instruments and equipment suitable for monitoring large-scale toxic and harmful gas leakage in the park....

AI Technical Summary

Problems solved by technology

[0004] At present, domestic commercialized open DOAS analyzers are mainly used in the monitoring of conventional polluting gases (SO2, NO2, O3). The components of the instrument are relatively large and occupy a large volume, and the spectrometer requires multiple steps of debugging, and the operation is relatively cumbersome. , not suitable for the existing on-line monitoring of toxic and harmful gases in the park

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