CN2529646Y

CN2529646Y - Photocatalysis air purifier

Info

Publication number: CN2529646Y
Application number: CN 01268178
Authority: CN
Inventors: 窦伟; 庄大明; 方晓东; 张弓
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-10-26
Filing date: 2001-10-26
Publication date: 2003-01-08
Anticipated expiration: 2011-10-26

Abstract

The utility model discloses a photocatalysis air purifier, which consists of a machine body, a switch control device, an air circulation device, an air filtering device and a photocatalysis device. The air channel in the air purifier is provided with the photocatalysis device which is formed by a photocatalysis membrane attached on a carrier and an ultraviolet light source. Wherein, the photocatalysis membrane is Titania membrane prepared on the carrier through the method of magnetron sputtering, and the carrier is glass, metal, ceramics or silk net. When the air passes through the photocatalysis device, the harmful substances in the air such as formaldehyde and benzene are degraded by photocatalysis, and innocuous substances are generated; moreover, the bacteria in the air is also eliminated by the ultraviolet light, thereby purifying the air. The photocatalysis air purifier provided by the utility model is applicable to the inside of household as well as the inside of large space.

Description

Photocatalysis air purifying device

Technical field:

This utility model relates to and a kind ofly utilizes light-catalyzed reaction that airborne harmful gas is carried out purified treatment, and has the air purifier of sterilization functions.

Technical background:

There is the time more than 70% to spend in people's daily life indoor.Modern people's living standard improves constantly, and the home decoration condition is improved day by day, but that the thing followed is indoor air pollution is more and more serious.By the volatile organic matter that construction material, ornament materials, furniture, electrical equipment etc. discharge, wherein most of harmful.Also have antibacterial, the right thing of inorganic dirt also can pollute in this outer air to air, unfavorable to health.In hospital, anesthetic gases and toxicity sterilization chemical compound can be accumulated in the air contaminated air such as oxirane.In less space, as automobile, steamer, aircraft etc., because of ornament materials and result of combustion of tobacco have also been brought pollution to air.What bring thus is that people's P increases the appearance of the ill symptoms that the people of similar " legionnaires disease ", " air conditioning disease " etc. are new.

Carrying out such as processing such as filtration, absorption, electrostatic precipitations to contaminated air has been known method.These methods are not removed harmful substance, just they are sent to another place from a place.Because the said method operation principle is limit, the material that is used for Filtration Adsorption will often be changed, otherwise can influence the clean-up effect to air, even can produce secondary pollution in addition.

Utilize photocatalysis that air is carried out the developing direction that purified treatment is current air pollution treatment technology.Patent 91232342.6 provides a kind of photocatalysis air purifying device, and the photocatalysis bed is to be made by glass cloth, and is rolled into tubular, and is photocatalyst coated on glass cloth, and a photocatalysis apparatus is set in the air purifier.The adhesion existing problems of this kind method photocatalyst and glass cloth, photocatalyst peels off easily.Ultraviolet source is located on the tubular axis, and ultraviolet light only impinges upon on the tube inner surface.

Patent 99236007.2 discloses a kind of photocatalysis air purifying device, its photocatalysis bed is that photocatalyst is made graininess, is attached to gel method and makes on the carrier, also exists adhesion to be difficult for the problem that guarantees, influences the irradiation under ultraviolet ray effect simultaneously.And when the photocatalysis bed be by photocatalyst constitute dynamic fluidized bed the time, the radiation response of ultraviolet light is affected equally.

Patent 96194224.X discloses a kind of photocatalysis air purifying device, uses titania powder as photocatalyst, and the support member of photocatalyst is fiber or metal gauze, also exists adhesion to be difficult for the problem that guarantees.The used ultraviolet source of this air purifier is arranged at a side of photocatalyst simultaneously, makes light efficiency be affected.

The purpose of this utility model is to provide a kind of reliable optically catalytic TiO 2 film, increases the illumination efficiency of ultraviolet light simultaneously as far as possible, makes the effect of air cleaning to reach the satisfied light-catalyzed reaction that utilizes.

Summary of the invention:

This utility model is made up of body, switch controlling device, air circulation device, air filter and photocatalysis apparatus.Contaminated air through gas filtration and light-catalyzed reaction and ultraviolet light sterilization, finally obtains clean air by air purifier.

The purpose of this utility model realizes by following measure.Utilize magnetically controlled sputter method to obtain the optically catalytic TiO 2 reactive film on carrier, carrier is the silk screen that glass, metal, pottery and these materials are made, or the glass of plated film, the metal of plated film, the pottery of plated film, the macromolecular material of plated film.In the photocatalytic reaction device of tubbiness, ultraviolet source is located at axial location, and preparation has the carrier of photocatalysis film can make tubbiness and tabular, sees accompanying drawing 2; Tubbiness and curve are tabular, see accompanying drawing 3; Tubbiness and broken line are tabular, see accompanying drawing 4; Tubbiness and helical form are seen accompanying drawing 5, thereby increase the irradiated area of ultraviolet light.In order to adapt to the requirement of the spatial air cleaning of different area, one group of photocatalytic reaction device can be set in the air purifier, see accompanying drawing 1, many group photocatalytic reaction devices also can be set.When the photocatalytic reaction device of group more than being provided with, in air purifier transversely arranged layout, see accompanying drawing 6, or vertical arranged, see Fig. 7, or the broken line arranged, see accompanying drawing 8, or cross arrangement is arranged, see accompanying drawing 9, or the curved arrangement layout, or annular array is arranged.

Description of drawings:

Fig. 1 is a photocatalysis air purifying device operation principle sketch map

Fig. 2 is flat photocatalysis apparatus sketch map for thin-film carrier

Fig. 3 is the tabular photocatalysis apparatus sketch map of curve for thin-film carrier

Fig. 4 is the tabular photocatalysis apparatus sketch map of broken line for thin-film carrier

Fig. 5 is spiral helicine photocatalysis apparatus sketch map for thin-film carrier

Fig. 6 is the transversely arranged sketch maps of a plurality of photocatalysis apparatus

Fig. 7 vertically arranges sketch map for a plurality of photocatalysis apparatus

Fig. 8 is that a plurality of photocatalysis apparatus broken lines are arranged sketch map

Fig. 9 is a plurality of photocatalysis apparatus cross arrangement sketch maps

The specific embodiment:

Structural principle of the present utility model will be described in conjunction with the accompanying drawings, wherein Figure 1 shows that: contaminated air enters air purifier under the effect of ventilation fan 4, and through air filter 5, airborne deleterious particle thing is filtered earlier; Pass through photocatalytic reaction device 3,2 then, wherein 3 is titanium dioxide optical catalyst thin film, the 2nd, and the purification that is degraded of ultraviolet source, airborne harmful gas such as formaldehyde, benzene etc., antibacterial is knocked out by ultraviolet light; Pass through air filter 1 again, air is further purified, finally obtain pure air.Photocatalysis film is attached to making on the flat carrier 6 among Fig. 2; Photocatalysis film is attached to making on the tabular carrier of curved surface 7 among Fig. 3; Photocatalysis film is attached to making on the tabular carrier of broken line 8 among Fig. 4; Photocatalysis film is attached to making on the spiral helicine carrier on 9 among Fig. 5.

Embodiment one:

As shown in Figure 1, one group of photocatalytic reaction device is set in the air purifier, photocatalytic reaction device is that tubbiness and platy structure are equipped with ultraviolet source, and photocatalysis film is the titanium deoxid film that obtains with magnetically controlled sputter method.Air enters air purifier by air inlet, and through filtering, airborne deleterious particle thing and harmful gas have been removed in light-catalyzed reaction, again through ultraviolet light sterilization, obtains the pure air that process purifies from outlet.Implementation column two:

A kind of as shown in Figure 9 air purifier that many group photocatalytic reaction devices are housed, the air cleaning that can be used for large space is administered.Air enters air purifier by air inlet, and through filtering, airborne deleterious particle thing and harmful gas have been removed in light-catalyzed reaction, pass through ultraviolet light sterilization again, obtain the pure air that process purifies from outlet.

Claims

1. photocatalysis air purifying device, form by body, switch controlling device, air circulation device, air filter and photocatalysis apparatus, it is characterized in that: be provided with photocatalytic reaction device in the passage that air flows through in air purifier, photocatalytic reaction device is made up of the light-catalyzed reaction thin film and the ultraviolet source that are attached on the carrier, said light-catalyzed reaction thin film is to use titanium dioxide as photocatalyst, and uses magnetically controlled sputter method to generate titanium deoxid film on carrier.

2. according to the described photocatalysis air purifying device of claim 1, it is characterized in that: the light-catalyzed reaction agent is attached to and forms thin film on the carrier, and carrier is the silk screen that glass, metal, pottery and these materials are made.

3. according to the described photocatalysis air purifying device of claim 1, it is characterized in that: the light-catalyzed reaction agent is attached to and forms thin film on the carrier, and carrier is the glass of plated film, the metal of plated film, the pottery of plated film or the macromolecular material of plated film.

4. according to claim 1,2,3 described photocatalysis air purifying devices, it is characterized in that: the accompanying carrier of light-catalyzed reaction thin film in the photocatalytic reaction device is made tabular, tubbiness, broken line is tabular, curve is tabular or helical form.

5. according to the described photocatalysis air purifying device of claim 1, it is characterized in that: photocatalytic reaction device is provided with one or several in photocatalysis air purifying device.

6. according to claim 1,5 described photocatalysis air purifying devices, it is characterized in that: photocatalytic reaction device is by transversely arranged, vertical arrangement, circular arrangement, annular array, broken line arrangement, curved arrangement or cross arrangement in photocatalysis air purifying device.