Adsorption-degradation filter element and air purifier using same

Abstract

The invention belongs to the technical field of air purification, in particular to an adsorption-degradation filter element and an air purifier using the same. The filter element comprises a mixture of active carbon and titanium dioxide or a composite layer structure of active carbon and titanium dioxide; the filter element takes the active carbon as a carrier to form a circulation process consisting of carrier adsorption, surface diffusion, photocatalytic degradation, in-situ regenerative adsorption capability and re-adsorption of pollutants; and synergistic effect of adsorption and photocatalytic degradation is generated and the purification effect is far more than the total purification effect of a filtering unit and a photocatalyst in the prior art, thus achieving an effect that one plus one is greater than two. Compared with the conventional air purifier, the air purifier using the adsorption-degradation filter element has the advantages of reasonable design, simple structure, device miniaturization, small floor area, composite air purification, high purification efficiency and the like, and can be widely applied to places such as houses, vehicles, and the like.

Description

technical field [0001] The invention belongs to the technical field of air purification, and in particular relates to an adsorption degradation filter element and an air purification device using the filter element. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for living environment and office environment, and air purifiers, as a device that can remove dust and bacteria in the air, are widely used in homes, offices and other occasions. [0003] The purification principles of existing air purifiers are generally divided into two types. One is to use filtering units such as filter screens and activated carbon layers to filter the air. This method can only filter and absorb dust and harmful gases in the air, but does not It does not have the function of decomposing harmful gases and sterilizing, and the filter unit needs to be cleaned and replaced frequently; the other is the use of photocatalyst technology, ...

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Problems solved by technology

[0003] The purification principles of existing air purifiers are generally divided into two types. One is to use filtering units such as filter screens and activated carbon layers to filter the air. This method can only filter and absorb dust and harmful gases in the air, but does not It does not have the function of decomposing harmful gases and sterilizing, and the filter unit needs to be cleaned and replaced frequently; the other is the use of photocatalyst technology, which uses the chemical reaction between the ultraviolet lamp and the photocatalyst layer to realize the detoxification of formaldehyde, benzene, toluene, xylene, ammonia, etc. , TVOC and other pollutants, and decompose and harmless treatment the toxins released by bacteria or fungi, so as to achieve the purpose of purifying air, anti-pollution and deodorization, but the purification equipment using this method generally uses forced air circulation by fans , when the fan speed is fast, the air flow is also fast, and the contact distance between harmful gases and bacteria and the photocatalyst layer is long and the time is short, resulting in low degradation efficiency and sterilization efficiency. When the fan speed is slow, due to the small amount of filtered air , the harmful gases and bacteria passing through are also reduced, and the ideal purification effect is also not achieved. There are also some high-efficiency purification equipment in the market, but these equipment are large-scale, complicated, and energy-intensive equipment, which is not suitable for home or car

[0004] The air purification equipment in the prior art cannot meet people's increasing demand for indoor or in-vehicle air quality due to the single purification method, single function, and low efficiency.

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