Air chamber structure for monitoring concentration of different smelly gas in air

Abstract

The invention provides an air chamber structure for monitoring the concentration of different smelly gas in the air. The air chamber structure comprises an air chamber cavity, two end caps and collecting circuit boards; multiple monitoring devices are arranged in the air chamber cavity, and used to simultaneously monitor the concentration of different smelly gas entering the cavity; the two end caps are connected with the two ends of the air chamber cavity respectively; each end cap is provided with first gas ports; the collecting circuit boards are fixed to the air chamber cavity and distributed along the circumferential direction of the air chamber cavity; and the monitoring devices are connected with the collecting circuit boards. Via the structure, the high integrated degree of the airchamber can be further reduced, flowing of gas to be detected can be reduced to make the gas even, adsorption and reaction between the smelly gas and detection air chamber are controlled, and the data monitoring accuracy is improved.

Description

technical field [0001] The disclosure relates to the field of environmental protection, in particular to an air chamber structure for monitoring the concentration of various malodorous gases in the air. Background technique [0002] Odor pollutants are a special kind of odorous substances, which are typical nuisance pollution and are also the focus of current complaints. They are also considered by many scholars as one of the seven major public hazards recognized in the world. With the development of my country's economy and the rapid expansion of cities, the impact of odor pollutants on residents' lives is gradually increasing. In recent years, it has become the first category of pollution complaints in large and medium-sized cities. [0003] At present, the detection of odorous pollutants has become an important part of urban environmental monitoring, and corresponding professional detection instruments have emerged as the times require. This type of instrument mainly det...

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Problems solved by technology

But at present, it is generally used to put the sensor in the airtight chamber and pass the gas to be detected for detection, but this kind of detection method can only monitor a single gas at the same time, and cannot detect multiple gases at the same time; and the traditional detection method cannot be used in The gas is filtered at the inlet and outlet of the gas chamber to homogenize the gas flow rate, which will cause fluctuations in the detected gas, resulting in a decrease in detection accuracy; the traditional gas chamber structure is made of aluminum or engineering plastics, which will adsorb the gas to be tested and reaction, resulting in a decrease in detection accuracy

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