Device and method for purifying indoor air

Abstract

The invention belongs to the technical field of indoor air purification, and particularly relates to a purifying device required by air purification in relatively-enclosed spaces such as family rooms, offices, movie theaters, public bath rooms and the like, and a purifying method thereof. The purifying method comprises that: air is introduced into a photochemical reaction device under the action of an induced-draft device, and is subjected to photochemical reaction and sterilization in the photochemical reaction device by utilizing ultraviolet rays; the air subjected to the photochemical reaction enters an inner layer of an absorption tube; absorption liquid is introduced to an outer layer of the absorption tube, and absorbs products generated in the photochemical reaction and residual pollutants in the air; the air absorbed by the absorption liquid and the absorption liquid enter an air-liquid separating device; the air is absorbed further in the air-liquid separating device by the absorption liquid; and the clean air is separated from the absorption liquid in the air-liquid separating device and is conveyed into a room or is discharged to atmosphere from an exhaust tube, and the absorption liquid flows back to a liquid storage tank.

Description

Technical field: [0001] The invention belongs to the technical field of indoor air purification, and in particular relates to a purification device and a purification method required for air purification in relatively closed spaces such as family rooms, offices, theaters, and public bathrooms. Background technique: [0002] With the development of social economy and the continuous improvement of people's living standards, more and more people need to renovate and decorate the facilities of the house when they move to new homes and renovate old ones, and purchase all kinds of new furniture. Convenient for daily life. However, in this way, various pollutants are inevitably introduced into the living room. Therefore, eliminating indoor environmental pollution is a subject directly related to people's health and quality of life. [0003] Common indoor environmental pollutants are as follows: [0004] Formaldehyde is the most common indoor air pollutant, mainly from the boar...

AI Technical Summary

Problems solved by technology

[0008]In the known prior art, the advantage of ultraviolet technology is that it has a good sterilization effect, but the disadvantage is that it can only be directly irradiated for sterilization. If the human body accidentally comes into contact with ultraviolet rays , it will cause damage, and this direct exposure will not cause substantial changes in the hazards of indoor chemical pollutants

Ozone disinfection technology uses ozone to disinfect the air, but the residual ozone in the air after disinfection will cause damage to the human respiratory system

Ordinary hole mesh filter titanium dioxide photocatalyst technology has the characteristics of simple process, but the disadvantages are: when the filter layer is thin, the contact with pollutants will be insufficient, the photon energy efficiency will decrease, and the pollutant removal effect is not ideal; when the filter layer is too thick, the air will The resistance increases, and the power loss of the equipment increases

The air filtration and purification method uses activated carbon and synthetic fiber filter cloth as filter materials to purify the air. These materials have low adsorption capacity and high air resistance, and the long-term use effect will decrease. If they are not replaced in time, secondary pollutants will be generated.

The latest plasma purification technology visible in the literature uses a plasma generator to induce high-activity free radicals in the air to purify the air. Its advantage is that the reaction rate is fast, and the disadvantage is that the equipment structure is complex, and the high-activity free radicals themselves are harmful to the human body. If the pollutants induced by free radicals are not fully degraded, secondary pollutants are likely to be produced

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