Air purifier and decorative picture with formaldehyde removing function

Abstract

The invention discloses an air purifier with a formaldehyde removing function. The air purifier comprises a shell. The invention further discloses a decorative picture with the formaldehyde removing function. The decorative picture comprises a picture frame, a back plate and a picture plate, wherein the picture frame, the back plate and the picture plate form a shell of the decorative picture; anair inlet and an air outlet are formed in the shells of the air purifier and the decorative picture respectively; multiple layers of catalyst membranes are tightly arranged inside the shells at intervals; air passages are formed in gaps between the catalyst membranes; a preparation method of the catalyst membranes comprises the following steps: (1), coating a base film with UV-curable coating containing catalyst particles, and preheating coating by using infrared light, wherein the preheating temperature is 50-130 DEG C and the preheating time is 5s to 5min; (2), after preheating, curing by using UV light. The air purifier is small in volume and high in formaldehyde removing efficiency.

Description

technical field [0001] The invention relates to the field of air purification, in particular to an air purifier and a decorative painting with the function of removing formaldehyde. Background technique [0002] Decoration materials usually contain formaldehyde, toluene, TVOC and other pollutants that are harmful to human health, and the formaldehyde content in the newly renovated house will exceed the standard. At present, the technology of removing formaldehyde is mainly divided into two categories, one is physical removal of formaldehyde, and the other is chemical removal of formaldehyde. For example: [0003] (1) Open windows for ventilation: Ventilation is the most effective way to remove formaldehyde in a newly renovated house, and the air with high concentration of formaldehyde is continuously exchanged to the outside by opening windows. [0004] (2) Green plant adsorption: After several months of ventilation, the concentration of indoor formaldehyde will be greatly...

AI Technical Summary

Problems solved by technology

[0004] (2) Green plant adsorption: After several months of ventilation, the concentration of indoor formaldehyde will be greatly reduced, and the pollutants will enter a slow release process. The release cycle of formaldehyde is as long as 15 years. Some people will raise some plants indoors, such as Chlorophytum Plants such as green radish, agave, sansevieria, and ivy have certain adsorption capacity for formaldehyde, but the adsorption area is very limited and the adsorption efficiency is extremely low.

[0005] (3) Activated carbon adsorption: Activated carbon has the effect of adsorbing harmful substances such as formaldehyde, but it only adsorbs and does not decompose, and the adsorption capacity is limited, and it is easy to be saturated, so it needs to be replaced frequently, otherwise the saturated activated carbon will become a new source of pollution. Distribute harmful substances, causing secondary pollution

The porous structure of diatom mud allows it to absorb formaldehyde and various organic volatiles, but similar to activated carbon, diatom mud can only absorb organic volatiles, but cannot decompose them

[0007] (5) Formaldehyde scavenger: formaldehyde scavenger can only temporarily seal the pollution source, prevent formaldehyde volatilization in a short time, after the sealing layer is destroyed, the pollutants are released again, so formaldehyde scavenger cannot completely remove formaldehyde pollution

Most of the filters are activated carbon filters, which can only passively absorb formaldehyde, and need to be replaced regularly, which is costly;

[0010] The second is: the air purifier is equipped with a catalytic catalyst net or a catalytic catalyst plate. The existing catalytic catalyst net or catalytic catalyst plate has a large wind resistance, poor light transmittance, and insufficient light, which makes the efficiency of catalytic degradation of formaldehyde not high. On the other hand, the existing catalytic catalyst net or catalytic catalyst plate is obtained by directly and simply spraying or brushing the catalyst liquid on the base net or plate, and the catalytic catalyst layer on it is unevenly distributed and easy to fall off

[0012] In the prior art, the liquid containing photocatalyst is sprayed or brushed on the surface of furniture or indoor objects by spray gun or manual brushing to form a layer of nano-mesh protective layer, but the thickness of the protective layer is often uneven, and the sprayed photocatalyst liquid After drying, it is sticky, easy to get dusty, and has certain corrosiveness to furniture metal fittings

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