Disinfection device for air in public places and surfaces of human-contactable objects

Abstract

The invention provides a disinfection device for air in public places and surfaces of human-contactable objects. The disinfection device comprises a human body sensor, a first machine body, a second machine body and a third machine body, wherein the human body sensor is used for detecting whether people are in the public places or not and transmitting a signal to a controller; a total air inlet and a total air supply port are formed in the two sides of the first machine body; an air inlet and an air supply port are formed in the top of the first machine body; a motor, an air purification module and an air isolation belt are arranged inside the first machine body; the first machine body is used for sucking external air for filtering, removing peculiar smell and then sending back the air after disinfection; the second machine body is located at the top of the first machine body; an air inlet and an air supply port are formed in the bottom of the second machine body; an air disinfection module and a controller are arranged inside the second machine body; the second machine body is used for controlling starting and stopping of all the machine bodies and continuously disinfecting air sucked by the first machine body when someone exists; and the third machine body is composed of a pulse strong light sterilization module and used for rapidly disinfecting the air and the surface of the object when no person exists.

Description

technical field [0001] The invention relates to the technical field of disinfection, in particular to a disinfection device for the air in public places and the surfaces of objects that can be touched by people. Background technique [0002] The aerosols produced by human breathing in public places [aerosol: a dispersion system formed by liquid particles stably suspended in a gas medium], and the surfaces of objects that people can touch in public places [buttons, handrails, walls, etc.] As the main mutual inductance medium, if the respiratory aerosols and human-touchable surfaces in public places carry viruses, it is very easy to cause mass infection. Therefore, it is particularly important to ensure the disinfection efficiency and quality of the air in public places and the surfaces of human-touchable objects. [0003] Existing disinfection technology mainly relies on direct irradiation of ultraviolet lamps and artificial spraying of chemical disinfectants. Wherein, ultrav...

AI Technical Summary

Problems solved by technology

[0003] Existing disinfection technology mainly relies on direct irradiation of ultraviolet lamps and artificial spraying of chemical disinfectants. Wherein, ultraviolet lamps, as existing disinfection devices, have the following defects. Symptoms such as dandruff, if you are exposed to ultraviolet disinfection lamps for a long time, it may cause general discomfort, and serious skin cancer and skin tumors will occur. Secondary pollution, according to the International Ambient Air Quality Standards (National Ambient Air Quality Standards, NAAQS), the limit concentration of ozone that a person can accept within one hour is 260 μg / m3, and activities in an ozone environment of 320 μg / m3 for 1 hour will cause coughing , Difficulty in breathing and decreased lung function. At the same time, excessive ozone will produce an obvious odor similar to rotten eggs. Third: the disinfection technology of direct irradiation of ultraviolet lamps. Due to the limitation of the radiation distance of the ultraviolet lamp itself, the disinfection range is small, resulting in disinfection air. Quantity is limited; artificial spraying of chemical disinfectant, as an existing disinfection technology, has the following defects, the first: with the increase of public space, the labor cost of artificial spraying of chemical disinfectant is also increasing, the second: The timeliness of chemical disinfectant is poor, and it cannot continuously and effectively disinfect public places. Chemical disinfectant is atomized and sprayed when in use. Liquid atomization increases the volatilization area, further accelerating the volatilization of disinfectant until it completely loses disinfection. Ability, and manual spraying of disinfectant cannot be done in time, resulting in untimely sanitation corners. Third: chemical disinfectant is corrosive. If the artificial ratio exceeds the standard, it is easy to burn the human respiratory mucosa. Fourth: chemical disinfectant The disinfection efficiency is low, and it still takes 30-60 minutes under the condition of meeting the concentration ratio requirements. Fifth: the amount of disinfected air in the chemical disinfectant is small, mainly relying on the passive disinfection of natural volatilization, and cannot actively disinfect a large amount of air

[0004] In summary, the existing disinfection technology in public places has technical defects such as easy to produce secondary pollution, cause a certain degree of damage to the human body, small amount of disinfected air, poor disinfection timeliness, low disinfection efficiency, and untimely disinfection

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