A system and method for detecting formaldehyde content in air
A formaldehyde content and formaldehyde technology, which is applied in the field of systems for detecting formaldehyde content in the air, can solve the problems such as the inability to fully realize quantitative detection and the inability to eliminate the influence of moisture, and achieve the effects of convenient operation, low cost and guaranteed accuracy.
Active Publication Date: 2022-02-01
BEIJING SDL TECH
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Problems solved by technology
This technology is to qualitatively decompose formaldehyde into CO 2 and H 2 O, quantitative detection cannot be fully realized, and the influence of moisture cannot be eliminated
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[0039] The specific implementation manners of the present invention will be described in more detail below in conjunction with the accompanying drawings and examples, so as to better understand the solution of the present invention and its advantages in various aspects. However, the specific embodiments and examples described below are for the purpose of illustration only, rather than limiting the present invention.
[0040] Such as figure 1 Shown is a system for detecting formaldehyde content in air according to an embodiment of the present invention, including a temperature-controlled water removal device 3 and a formaldehyde detection device 5 . In other embodiments of the present invention, an air intake device 1 is also included. In different embodiments, an air extraction device 2 is also included. In other embodiments, a formaldehyde enrichment device 4 is further included. In a preferred embodiment of the present invention, a solenoid valve 601 , a solenoid valve 60...
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The invention relates to a system and method for detecting formaldehyde content in air. The system includes a temperature control dewatering device and a formaldehyde detection device. The temperature control dewatering device is provided with a water-absorbing material and a temperature controller, and has an air inlet and a dry gas outlet. The formaldehyde detection device has a dry gas inlet, and the dry gas inlet and the control The drying gas outlet of the temperature-controlled water removal device is connected; the method includes: sending the air containing formaldehyde into the temperature-controlled water-removal device, and starting the temperature controller, the temperature of the temperature-controlled water-removal device increases, and the air containing formaldehyde passes through After the water-absorbing material absorbs water and heats up, dry gas is obtained, and the dry gas is sent to the formaldehyde detection device to detect the formaldehyde content in the air. The invention can realize rapid and direct detection of formaldehyde content in the air, effectively remove the influence of moisture in the air, realize rapid and effective assessment of formaldehyde pollution in the air, and is convenient and accurate in operation and low in cost.
Description
technical field [0001] The invention relates to a system and method for directly, rapidly and accurately detecting the formaldehyde content in the air. Background technique [0002] Formaldehyde is a protoplasmic poison and one of the main pollutants in the air. It has been identified as a potential dangerous carcinogen and an important environmental pollutant by the World Health Organization (WHO) and the U.S. Environmental Protection Agency (EPA). In recent years, there have been many reports about formaldehyde. Formaldehyde has carcinogenic and cancer-promoting hazards, especially for the elderly, children, and pregnant women with low immunity. Surveys show that long-term excessive inhalation of formaldehyde can cause various serious diseases such as nasopharyngeal cancer and throat cancer. The harm of formaldehyde to human body is mainly manifested through aspects such as allotriosmia, stimulation, allergy, abnormal pulmonary function, abnormal liver function, and immu...
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IPC IPC(8): G01N1/34G01N1/44G01N27/62
CPCG01N1/34G01N27/62
Inventor 敖小强卞玉倩
Owner BEIJING SDL TECH