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Air detection device

A technology of air detection and detection department, which is applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of high cost of formaldehyde sensors and inaccurate monitoring, and achieve the effect of high detection accuracy and low detection cost.

Pending Publication Date: 2021-06-15
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This application aims at the problems of high cost and inaccurate monitoring of existing formaldehyde sensors, and proposes an air detection device, which has the technical effect of low cost and high detection accuracy

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Embodiment Construction

[0028] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "...

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Abstract

The invention relates to an air detection device. The air detection device comprises a sampling part for collecting a first gas, wherein the sampling part is provided with a channel for accommodating the first gas; a decomposing part which is arranged in the channel and is used for decomposing formaldehyde in the first gas penetrating through the decomposing part to obtain second gas; and a detection part which is used for detecting the carbon dioxide concentration of the first gas and the carbon dioxide concentration of the second gas so as to obtain the formaldehyde concentration in the first gas according to the difference between the carbon dioxide concentration of the first gas and the carbon dioxide concentration of the second gas. Compared with the prior art, the formaldehyde in the first gas is decomposed through the decomposition part to obtain the second gas, the formaldehyde concentration in the first gas is calculated according to the difference value of the carbon dioxide concentration of the first gas and the carbon dioxide concentration of the second gas, detection cost is low, and detection precision is high.

Description

technical field [0001] The present application relates to the technical field of air quality detection, in particular to an air detection device. Background technique [0002] Indoor air pollution has become an important area of ​​increasing concern, and convenient, fast and accurate formaldehyde detection technology has become the focus of home users. The current method of testing formaldehyde is mainly based on the electrochemical method of formaldehyde sensor. The detection principle is that the formaldehyde molecule electrochemically reacts with the internal electrolyte to generate electrons, and the electrons form a current, and the formaldehyde molecule content is judged by monitoring the magnitude of the current. This type of sensor has the problems of high cost and inaccurate detection. Contents of the invention [0003] Aiming at the problems of high cost and inaccurate monitoring of existing formaldehyde sensors, the present application proposes an air detection...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0031
Inventor 王堃胡镇韬毛建平王墅伍晨迪贾林虎
Owner GREE ELECTRIC APPLIANCES INC