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Electronic nose system for detecting smell of building decoration materials and detection method

A material odor and electronic nose technology, applied in the field of electronic nose system and building decoration material odor detection, to achieve the effect of improving the degree of distinction, improving the convenience of operation, and reducing the dead volume

Inactive Publication Date: 2020-11-17
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0004] The present invention provides an electronic nose system and detection method for odor detection of building decoration materials for the problem of main odor pollutants emitted by building decoration materials

Method used

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  • Electronic nose system for detecting smell of building decoration materials and detection method
  • Electronic nose system for detecting smell of building decoration materials and detection method
  • Electronic nose system for detecting smell of building decoration materials and detection method

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Embodiment Construction

[0029] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0030] The invention provides an electronic nose system and a detection method for smell detection of building decoration materials.

[0031] Such as figure 1 As shown, the system includes an air purifier 1, a two-position three-way solenoid valve, a micro dynamic chamber 3, a six-way valve 5, a gas sensing chamber 6, an odor sensor 7, a digital converter 8, a microcomputer 9, and a micro vacuum pump 11 and the exhaust processor 12, the air purifier 1 is connected with the two-position three-way solenoid valve V12, and the two-position three-way solenoid valve V12 is divided into two circuits, A and B, and the B circuit is connected with the air inlet of the micro dynamic cabin 3, and the A The airway is connected to the No. 6 position of the six-way va...

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Abstract

The invention provides an electronic nose system for odor detection of building decoration materials and a detection method, and belongs to the technical field of odor detection. The system comprisesan air purifier, a two-position three-way electromagnetic valve, a micro dynamic cabin, a six-way valve, a gas sensitive detection chamber, a smell sensor, a digital converter, a microcomputer, a micro vacuum pump and a tail gas processor. The ambient air is sucked into the air purifier by the micro vacuum pump and becomes odorless clean air after being purified, and then the clean air is dividedinto two paths through a one-inlet two-outlet two-position three-way electromagnetic valve V1, the two paths are connected with an air inlet of the miniature dynamic cabin and the sixth position of the six-way valve respectively, and the circulation path of the clean air is controlled by switching the communication mode of the six-way valve and the two-position three-way electromagnetic valve. Orthe clean air is directly conveyed into the gas sensitive detection chamber and the six-way valve to be purged and cleaned. The system has the advantages of being high in automation degree, quick in response, low in cost, portable and easy to operate.

Description

technical field [0001] The invention relates to the technical field of odor detection, in particular to an electronic nose system and a detection method for odor detection of building decoration materials. Background technique [0002] The main source of indoor odor pollution is the odor pollutants emitted by various building decoration materials. In recent years, with the rise of interior decoration, the consumption of cost-effective building decoration materials such as coatings, adhesives, wood-based panels, and wallpapers has increased significantly. These building decoration materials will emit benzene series, organic acids, aldehydes, ketones, esters and other gas pollutants during use. Most of these substances have low olfactory thresholds and unique odor characteristics, which are responsible for indoor odor pollution. the main reason. [0003] The evaluation method of odor pollution mainly relies on sensory analysis, but the measurement results are highly subjecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0001G01N33/0009
Inventor 吴传东刘杰民曲琛刘柱
Owner UNIV OF SCI & TECH BEIJING
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