Online analyzer for air quality multi-component gas particles

Abstract

The invention discloses an online analyzer for air quality multi-component gas particles. The online analyzer comprises an online analyzer body and a sampling pipe arranged at the gas input end of theonline analyzer body, the top of the sampling pipe is fixedly communicated with a gas inlet pipe; according to the online analyzer for air quality multi-component gas particles, a filtering reactiondevice is arranged at the input end of the sampling pipe; according to the filtering reaction device, on one hand, the content of carbon dioxide contained in air is detected before reaction; meanwhile, the copper oxide and the carbon monoxide are fully reacted under the heating condition; generating carbon dioxide and copper, finally, the carbon dioxide is detected again through the interior of the online analyzer body, so that the content of the carbon monoxide is obtained, and meanwhile, the problems that the detection precision is influenced and certain potential safety hazards exist due tothe fact that the carbon monoxide contained in the gas entering the online analyzer body consumes oxygen at a high temperature are effectively prevented.

Description

technical field [0001] The invention relates to the technical field of online analysis of air quality, in particular to an online analyzer for air quality multi-component gas particulate matter. Background technique [0002] With the increasingly serious air pollution and the increase of family cars, online analyzers are often used to detect multi-component gas particles in the air. [0003] The working principle of the existing air quality multi-component gas particulate matter online analyzer is: under the action of the air pump, the sample gas to be tested enters the cavity of the device through the sampling head and then enters the device through the sampling tube inserted into the wall of the sample tube. The dust filter flows to the sample gas output port. During the sampling process, the temperature of the sample gas is always in a high state. The working conditions of the filter have been improved. In order to ensure that no condensation occurs during this process, ...

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Problems solved by technology

[0004] However, because the sampling head only plays the role of sampling the multi-component gas in the air, when sampling, the existing air contains a large amount of automobile exhaust, thus causing the air to contain more Carbon monoxide, and because the temperature of the gas flow entering the analyzer will increase with the temperature set inside the analyzer, that is, when the gas to be tested contains carbon monoxide and is operated at a high temperature, the substance to be tested will react with oxygen , consume part of the oxygen, reduce the oxygen concentration, and cause measurement errors. The carbon monoxide and oxygen contained at the same time may even explode under high temperature conditions, and there are certain safety hazards. For this reason, we propose an air quality multi-component gas particle online analyzer.

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