Formaldehyde concentration detection and purification device

Abstract

The invention discloses a formaldehyde concentration detection and purification device which comprises a bearing device, and a purification device is arranged in the bearing device. Through cooperation of an air guide device, a cutoff device, a transmission device and a detection device, the formaldehyde concentration detection and purification device can detect the formaldehyde concentration in a mode of detecting indoor air once at set intervals, the contact time of the detection device and the air is shortened, and the service life of the detection device is prolonged favourably; through cooperation of the detection device, the transmission device and the air guide device, the formaldehyde concentration detection and purification device can automatically start the purification function when the formaldehyde concentration is high and automatically stop the purification function when the formaldehyde concentration is low so as to adapt to the process that formaldehyde is slowly released, and thus the proportion of effective energy consumption is further increased, energy consumption is reduced, the use cost is reduced, and the practicability of the formaldehyde concentration detection and purification device is improved.

Description

technical field [0001] The invention relates to the field of formaldehyde purification equipment, in particular to a formaldehyde concentration detection and purification device. Background technique [0002] Formaldehyde is an organic chemical substance, also known as formaldehyde. It is a colorless, irritating gas with toxicity. Acute poisoning is manifested as irritation to the skin and mucous membranes. Inhalation of high concentrations of formaldehyde can cause respiratory irritation symptoms, sneezing, Cough accompanied by a burning sensation in the nose and throat. In addition, it can also induce bronchial asthma, pneumonia, and pulmonary edema. One-time large intake of formaldehyde through the digestive tract can cause symptoms of digestive tract and systemic toxicity, and corrosion of the mouth, throat and digestive tract. Sexual burns, abdominal pain, convulsions, death, etc. Skin contact with formaldehyde can cause allergic dermatitis, pigmentation, skin necrosis ...

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Problems solved by technology

[0002] Formaldehyde is an organic chemical substance, also known as formaldehyde. It is a colorless, irritating gas with toxicity. Acute poisoning is manifested as irritation to the skin and mucous membranes. Inhalation of high concentrations of formaldehyde can cause respiratory irritation symptoms, sneezing, Cough accompanied by a burning sensation in the nose and throat. In addition, it can also induce bronchial asthma, pneumonia, and pulmonary edema. One-time large intake of formaldehyde through the digestive tract can cause symptoms of digestive tract and systemic toxicity, and corrosion of the mouth, throat and digestive tract. Sexual burns, abdominal pain, convulsions, death, etc. Skin contact with formaldehyde can cause allergic dermatitis, pigmentation, skin necrosis and other lesions, oral ingestion of 10-20ml formaldehyde solution can be fatal; long-term exposure to formaldehyde atmosphere can cause chronic poisoning and It can reduce the respiratory function of the body, the information integration function of the nervous system, and affect the immune response of the body. It also has toxic effects on the cardiovascular system, endocrine system, digestive system, reproductive system, and kidney. Systemic symptoms include headache, fatigue, loss of appetite, Palpitations, insomnia, weight loss and autonomic disorders, etc., formaldehyde is widely used in chemical, textile, building materials and other fields, but its related products will slowly release formaldehyde gas during actual use, such as plywood, fine wood board, fiberboard And particle board, wall covering, wallpaper, paint, paint pipe, furniture, chemical fiber carpet and foam plastic, etc., the formaldehyde gas released will seriously pollute the indoor environment and cause harm to the human body, so the newly renovated house needs to be used before moving in. Formaldehyde concentration detection and purification device to purify indoor formaldehyde

[0003] Existing methods for formaldehyde concentration detection and purification devices to detect formaldehyde concentration mainly include spectrophotometry, electrochemical methods, chromatography, and sensor methods, and the formaldehyde sensors used in the sensor method mainly include electrochemical sensors, optical sensors, and photobiochemical sensors. The structure of the electrochemical sensor is relatively simple, the cost is relatively low, the performance of high-quality products is stable, and the measurement range and resolution can basically meet the requirements of indoor environmental detection. However, the electrochemical sensor is always exposed to the air, due to the electrolyte and the measured formaldehyde gas It is consumed due to irreversible chemical reactions, so its working life is generally relatively short, and the indoor air is continuously driven through the gap between the activated carbons through the long-term work of the blower, and the activated carbons continue to purify the air, which consumes a lot of energy and is effective The proportion of energy consumption is small and the cost of use is high, so it is urgent to design a formaldehyde concentration detection and purification device

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