TWI270384B - A photo-catalyst air-cleaning device - Google Patents

Abstract

A photo-catalyst air-cleaning device, which comprises a case containing an intake and a vent, wherein the intake and the vent contain revolvable wind-conduct vanes, and a panel is set erectly on the case; a light-conduct unit, which is set inside the case and covered by photo-catalyst-containing optical fiber or other light-conduct material; a light-previous unit, which is a light-pervious quartz sheet, acrylic sheet or lens, is fixed up the light-conduct unit; and an ultraviolet light source device, which is an ultraviolet diode, ultraviolet cold-cathode tube, ultraviolet xenon lamp, ultraviolet high-medium-or low-pressure mercury lamp or ultraviolet bulb, is fixed up the light-pervious unit. By using this photo-catalyst air-cleaning device, the harmful gas or microbes in air can be oxidized and degraded by photo-catalyst. The air can be cleared rapidly. The energy use and clean effect of the air-cleaning device can be increased significantly.

Description

1270384, _ case number 93102988_年月日日__ V. Description of the invention (1) Technical Field of the Invention The present invention relates to an air cleaning device, and more particularly to a coated substrate through an optical fiber or other light guiding material. In order to improve the utilization of ultraviolet light and increase the contact area between the photocatalyst and the air, a photocatalyst air cleaning device capable of effectively decomposing harmful microorganisms and organic volatile gases in the air can be obtained. [Prior Art] In recent years, due to the rapid concentration of urban population, the urban population has become generally dense, and the relative activity space has been compressed. In addition, most of the decoration properties and various furniture are chemical agents (such as formaldehyde and phenols). The surface and anti-corrosion treatment may cause the indoor environment to be filled with germs or volatile organic chemicals, which may cause harm to the health of the body. In the face of this air pollution hazard, the quality of indoor air cleanliness has received increasing attention, so various treatment methods for air cleanliness have begun to be applied. In the related devices for indoor air treatment, in the prior art, ozone and negative ion oxidation devices are used to oxidize and decompose microorganisms or harmful volatile organic substances in the air to reduce floating bacteria in the air or chemical substances dispersed in the atmosphere. . However, such an ozone decontamination device is an oxidative destructive device, and a by-product is left after the treatment of harmful substances in the air. Therefore, recently, a photocatalyst is used for the indoor air purification related device, and the modified photocatalytic oxidation device can take air. By-products from the treatment of hazardous substances are minimized and safer. Photocatalyst devices are only required to have strong oxidizing hydrogen and oxygen freeness in the atmosphere.

Page 5 1270384 ——:~——_93102988 _年月日日 ____ V. Description of the invention (2) The base oxidatively decomposes by the contact reaction of the substance with the photocatalyst. However, due to the problem of poor utilization of ultraviolet light and poor reaction effect, existing photocatalyst devices must achieve air purification effects with larger device equipment or more complicated designs, which not only causes an increase in air purification costs, but also a lack of wasted energy. SUMMARY OF THE INVENTION In view of the above drawbacks of the prior art, an object of the present invention is to provide a tooth heavy photocatalyst air cleaning device capable of oxidative decomposition of harmful gases or microbial X-ray photocatalysts in the air, thereby achieving rapid clean air and effectively improving Energy utilization and purification efficiency of air purification devices. The technical solution of the present invention is to provide a housing, the housing includes an air inlet and an air outlet, and at least one light guiding member is covered with a photocatalyst and disposed in the housing. At least one light transmissive member, the light transmissive member is fixed above the light guide member; and an ultraviolet light source device is fixed above the light transmissive member. In the photocatalyst air cleaning device of the present invention, the housing is provided with a rotatable wind guide vane at the air inlet or the air outlet. In the photocatalyst air cleaning device of the present invention, the housing is provided with a light collecting plate which is erected and positioned above the housing. In the photocatalyst air cleaning device of the present invention, the light guiding member is an optical fiber or other light guiding material coated with a photocatalyst. In the photocatalyst air purifying apparatus of the present invention, the surface of the light guiding member is coated with a photocatalyst prepared by a photocatalyst (Degussa P25-Ti02) or a solution-gel method (Sob Gel).

Page 6 1270384 Case No. 93102988 V. Description of the invention In this light quartz thin film can be an excellent description of the ultraviolet light xenon lamp in the local or the outlet and the current energy source, the photocatalyst invented by 0 (3) The photocatalyst light-emitting diode tube invented by the plate and the acrylic light, and the ultraviolet light energy of the invention of the photocatalyst of the photocatalyst are provided with a fan having a technology compared with the point. In the following, in conjunction with the modified ±_η air cleaning device of the present invention, the light transmissive member is a plate or lens. ... In the air cleaning device, the UV light source device UV-UD), the ultraviolet light cold cathode tube, the ultraviolet medium low pressure mercury lamp or the ultraviolet light bulb. In the air cleaning device, the ultraviolet light source device has a wavelength of 3 6 5 n m or 2 5 4 n m. In the air cleaning device, the air inlet device of the housing. The invention has the advantages of low air purification cost and saving the drawings. The first embodiment of the photocatalyst air cleaning device of the present invention is further illustrated by the technical solutions and specific effects of the preferred embodiments of the present invention. The example includes a casing 10, a light guiding member 16, a light transmitting member 14 and an ultraviolet light source device 13; the casing 1 includes an air inlet 1 〇a and an air outlet 1 〇B open on both sides to The casing 10 is provided with a rotatable wind guide vane 17 at the air inlet 1 0 A and the air outlet 1 0B for controlling the direction of the airflow into and out of the path. The side wall of the housing 10 can be further provided with a fixing bracket 18 for convenient use in different occasions. The housing 1 is further provided with a light collecting plate 1 2 'the light collecting plate 12 and is erected from the stand IQ It is fixed above the housing 10 . The light guide 16 is a plurality of optical fibers coated with photocatalyst or

Page 7 1270384 cattle case number 93〗 0 shape 5, invention description (4) other light-guide material, which is fixed in the housing 10 in an upright staggered arrangement 'forms the light guides 16 to each other In a state of close parallel staggered arrangement, and the light guide member 16 protrudes from the housing 1 〇, and the light guide member 丨 6 is a photocatalyst (0 to 1^38? 25-1^02) or a solution _ The nano-photocatalyst prepared by the gel method (§1_(^1) method is coated to form a thin layer of photocatalyst coated on the wall surface of the light guiding member 。6. The transparent member 14 is a transparent quartz a thin plate or an acrylic sheet which is screwed on the casing 而 above the light guiding member i 6 to prevent the light guiding member 16 from coming out and simultaneously transmitting ultraviolet light energy. The light transmissive member 14 is in contact with the rounded surface of the top end of the light guiding member 16 for low light loss during the transmission. The ultraviolet light source device 丨3 is disposed on the light collecting plate and is located at the light transmitting member 丨4. Above, the ultraviolet light source device 丨3 can be purple, hair 1 diode (uv-LED), ultraviolet cold cathode tube, ultraviolet ray tube, two ultraviolet high, medium and low pressure mercury lamps Or an ultraviolet light bulb, which emits external light and introduces light energy from the end surface of the light guiding member ,6, and the upper portion f of the light transmitting member 由4 is directly irradiated with ultraviolet energy having a wavelength of 365 nm or 254 nm and transmitted through the ultraviolet light. The ultraviolet light energy reflected by the light reflection 12 can enhance the light guiding amount of the light guiding member 与6 and the absorption amount of the ultraviolet light by the light medium. The light collecting plate 12 is further provided with an electrical connection device. The ultraviolet light power supply device 1 of the present invention uses the light guiding property of the light guiding member 16 (optical fiber or 2 ^ optical material) to convey the external light emitted by the ultraviolet light source device 13 And dispersing, and then illuminating the ultraviolet light transmitted therein by the difference in refractive index of the light guide member and the medium of the medium, thereby accommodating the photocatalytic oxidation reaction. Therefore, the photocatalyst*/moon clothing of the present invention is placed Fixed to air flow, fan front or air conditioning

Ϊ270384

Correction __ ^Z7 日^^,: 'The flow is perpendicular to the direction of the arrangement of the light guides 16. The strong oxidation reactivity of the xenon radicals excited by the photocatalyst, The harmful pathogens and microorganisms that are exposed to the photocatalyst on the surface of the light guide member 丨6 are killed, and the organic volatile substances are oxidized and decomposed into harmless molecules and carbon dioxide to achieve rapid clean air and effectively improve the air. Energy use and purification efficiency of the clean unit. Of course, the photocatalyst air purifying device of the present invention can also add a fan device (not shown) to the air inlet 10 A or the air outlet 10 B of the casing, and can more flexibly increase the range of use thereof. As shown in FIG. 4, a second embodiment of the photocatalyst air cleaning device of the present invention, wherein the mechanism for performing photocatalytic oxidation reaction comprises an ultraviolet light emitting diode (UV-LED) 21, a lens 22, and a coated The optical fiber (or other light-conducting material) of the photocatalyst 2 3, the ultraviolet light emitted by the ultraviolet light-emitting diode 21 is transmitted through the lens 22 into the optical fiber 23, and the hydrogen excited by the catalyst is excited. The strong oxidation reaction of oxygen radicals 'produces a purifying effect on the passing air. Of course, when the ultraviolet light emitted by the ultraviolet light-emitting diode 21 can directly and efficiently enter the optical fiber 23, the lens 2 2 can be omitted. It will be understood that various equivalent changes may be made in accordance with the technical solutions and technical concept of the present invention, and all such equivalent changes should fall within the scope of the claims of the present invention. .

1270384 ^ '_Case No. 93102988_年月日日_Amendment five, invention description (6) [schema] 10 shell; 10A air inlet; 10B air outlet; 1 1 ultraviolet power supply; 1 2 light collector; 1 3 ultraviolet light source device; 1 4 light transmitting member; 15 screw; 16 light guide; 17 air guide blade; 18 fixed bracket; 1 9 bracket; 2 1 ultraviolet light emitting diode; 2 2 lens; .

Page 10 1270384 Doc. No. 93102988 REDUCTION STATEMENT BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a first embodiment of the present invention; FIG. 2 is a front elevational view of the first embodiment of the present invention; A side view of a combination of the first embodiment of the invention; Fig. 4 is a schematic view showing the structure of the second embodiment of the invention.

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Claims (1)

1270384 ._^ 93102988---~^月修1 -- VI. Patent Application 1 · 'Photocatalyst air cleaning device, characterized in that it comprises a casing including an air inlet and an air outlet, at least one a light guiding member, the light guiding member is covered with a photocatalyst and disposed in the casing; at least one light transmitting member is fixed on the light guiding member; an ultraviolet light source device, wherein the ultraviolet light source device is The ultraviolet light generated by the ultraviolet light source device is transmitted to the inside of the at least one light guide through the light transmitting member to excite the photocatalytic reaction of the coating. The photocatalyst air cleaning device according to claim 1, wherein the housing is provided with a rotatable wind guide vane at the air inlet or the air outlet. The photocatalyst air cleaning device according to claim 1, wherein the housing is provided with a light collecting plate which is erected and positioned above the housing. The photocatalyst air cleaning device according to claim 1, wherein the light guide member is an optical fiber or other light guiding material coated with a photocatalyst. 5. The photocatalyst air purifying device according to claim 1, wherein the surface of the light guiding member is photocatalyst (Degussa P25-Ti02) or Lok-gel method (S 〇1 - G e 1 ) The nano-scale photocatalyst prepared by the method is coated. The photocatalyst air cleaning device according to claim 1, wherein the light transmissive member and the tip end surface of the light guide member are in contact with each other. The photocatalyst air cleaning device of claim 1 is characterized in that the photocatalyst air cleaning device further comprises a method for using the photocatalyst air cleaning device according to claim 1. Reflecting the ultraviolet light energy of the ultraviolet light source device and relatively located on the light collecting plate above the light transmitting member. 8. The photocatalyst air cleaning device according to claim 1, wherein the ultraviolet light source device is an ultraviolet light emitting diode (UV-LED), an ultraviolet light cold cathode tube, an ultraviolet xenon lamp, Ultraviolet light high medium and low pressure mercury lamp or ultraviolet light bulb. 9. The photocatalyst air cleaning device according to claim 1, wherein the ultraviolet light source emits ultraviolet light having a wavelength of 3 6 5 n m or 2 5 4 n m. The photocatalyst air cleaning device according to claim 1, wherein the photocatalyst air cleaning device further comprises an ultraviolet light power supply electrically connected to the purple light source device. Page 13