WO2006131049A1

WO2006131049A1 - A photocatalyst processor that can eliminate organic volatile in a movable vehicle

Info

Publication number: WO2006131049A1
Application number: PCT/CN2006/001009
Authority: WO
Inventors: Delin Zhang; Panting Hsueh
Original assignee: 72G Group Limited
Priority date: 2005-06-09
Filing date: 2006-05-17
Publication date: 2006-12-14
Also published as: CN1876417A; WO2006131049A8

Abstract

A photocatalyst processor, which can eliminate organic volatile in a movable vehicle, is embedded in the vehicle. The processor includes several anatase-type nanometer titanium dioxide mental web frame filters. The filters are positioned side by side, between which a space is provided. The processor has at least an UV light in the space or on the side of the filter. Additionally, the photocatalyst processor is embedded in the air intake/outtake tube of the vehicle. The processor may also include at least an air fan.

Description

Photocatalyst processor for eliminating organic volatiles in movable vehicles

Field of the Invention This invention relates to gas treatment in confined or semi-enclosed spaces, and more particularly to a photocatalyst processor that eliminates organic volatiles in a mobile vehicle having a confined or semi-closed space. The processor is embedded in a mobile vehicle that processes organic volatiles within the mobile utility and various polluting gases such as nitrogen oxides, hydrocarbons, and ozone around the moving vehicle. Background technique

It is well known that prolonged exposure to polluted air reduces the immunity of the human respiratory system and increases the incidence of laryngitis, bronchitis, and cardiopulmonary diseases, while non-metallic materials such as engineering plastics, adhesives, and rubber in automotive interior parts. Paint leather, paint, etc. will release a large number of chemical pollutants, such as furfural, benzene, xylene, ammonia, total volatile organic compounds (TV0C), and other pollutants from human respiratory metabolism and bacteria and other harmful substances.

In-car equipment can also produce several kinds of harmful substances, such as insulation materials, heat, electrical appliances, gasoline, etc. When the car is driving, the pollutants emitted by the front vehicles such as nitric oxide, nitrogen dioxide and other acid gases will follow the car air conditioner. The intake duct is introduced into the cabin and breathed into the upper respiratory tract and lungs by the human body. People sitting in the car breathe the exhaust gas from the front car engine and the unburned fuel gas, plus other volatile organic compounds (V0C) in the car, which can cause damage to the respiratory system, liver, kidney and hematopoietic organs, immunity. Functional changes, and even the risk of inducing cancer.

In 1999, the US ARB and SCAQMD organizations spent $440,000. The two-year study concluded that: the concentration of air pollution and toxic substances in the car is 10% higher than normal air. Times. In 2002, the Office of Environmental Transport and Air Quality Assessment and Standards of the United States also described the research structure of pollution in automobiles in the long-form report on "Control of Air Pollution from Automobiles and Their Fuels".

However, at present, all car manufacturers in the world do not have any processor that effectively processes the long-term emission of organic volatiles in automotive interior parts, and there is no processor that can handle the inhalation from the air outside the car when opening the window or turning on the car air conditioner. Nitrogen oxides, hydrocarbons and ozone emitted from various automobile exhausts. Summary of the invention

It is an object of the present invention to provide a photocatalyst processor that eliminates organic volatiles in a mobile vehicle, and the photocatalyst processor can effectively remove various organic substances that are harmful to human body when inhaled in the movable vehicle and The inorganic compound gas can also eliminate volatile substances continuously emitted from objects in the movable vehicle, and deodorize and sterilize.

In order to achieve the above object, the present invention adopts the following technical solutions:

A photocatalyst processor for eliminating organic volatiles in a movable vehicle, the processor being embedded in a movable vehicle and comprising: an anatase nano titanium dioxide metal mesh skeleton structure filler body; and illuminating the anatase type At least one ultraviolet lamp of the nano titanium dioxide metal mesh skeleton structure filler body.

Specifically, the anatase-type nano-titanium dioxide metal mesh skeleton structure filler body is arranged side by side with a space between the filler bodies, and the ultraviolet lamp tube is placed in the space between the filler bodies.

Specifically, the processor is embedded in an intake/outlet duct of the movable vehicle. Specifically, the anatase nano titanium dioxide metal mesh skeleton structure filler body is a block or a sheet. Specifically, the anatase nano titanium dioxide metal mesh skeleton structure filler body is an irregular/regular polygonal columnar body having a vertical or parallel sectional shape.

Specifically, the ultraviolet lamp tube is any one of a medium pressure ultraviolet lamp, a high pressure mercury lamp, a black light lamp, and an ultraviolet germicidal lamp.

Specifically, the ultraviolet lamp has a wavelength of between 250 nm and 380 nm.

Specifically, at least one air guiding fan is further provided, and the air guiding fan is disposed side by side with the filler body. In another aspect, a photocatalyst processor for eliminating organic volatiles in a vehicle, the processor being embedded in a movable vehicle and comprising: an anatase nanometer titanium dioxide metal mesh skeleton structure filler body, the filler bodies are arranged side by side And leaving a space between the filler bodies; and at least one ultraviolet lamp tube, the ultraviolet lamp tube is placed in the space between the filler bodies.

In the above technical solution of the present invention, the processor is embedded in a movable vehicle, such as a car, a subway, an aircraft, a ship, a submarine, or other confined or semi-enclosed space capable of carrying humans, and includes anatase The nanometer titanium dioxide metal mesh skeleton structure filler body and at least one ultraviolet lamp tube irradiating the anatase type nano titanium dioxide metal mesh skeleton structure filler body. The processor can fully handle volatile organic compounds and other harmful gases present in mobile vehicles, in particular, can effectively remove nitric oxide.

(NO), nitrogen dioxide (N0 ₂ ), or other oxides (eg, N0 _X , N _x 0 ). In addition, it captures the bacteria that kill the air.

Further, the anatase-type nano-titanium dioxide metal mesh skeleton structure filler body may be arranged side by side with a space between the filler bodies, and an ultraviolet lamp tube is disposed in the space. Further, in order to enhance the gas flow to improve the efficiency of handling harmful gases, a gas guiding fan may be provided. The use of a gas-conducting fan accelerates gas circulation and accelerates the elimination of volatile organic compounds that pose a life-threatening hazard to humans.

In addition, if the processor is placed in the inlet/outlet circulation duct in the movable vehicle, it can block the ultraviolet leakage and protect the safety of the processor without increasing the sum. Take up any extra space in the car. In this case, by using the air flow in the intake/outlet circulation duct in the movable vehicle, the same effect as in the case where the air guide fan is provided can be obtained without separately providing the air guide fan. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a photocatalyst processor for eliminating organic volatiles in a movable vehicle of the present invention.

2 and 3 are schematic views respectively showing an embodiment in which the photocatalyst processor of the present invention is applied to an automobile. detailed description

In order to further explain the above objects, aspects, and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

In order to facilitate a better understanding of the present invention, the following relates to the correlation of anatase titanium dioxide as follows:

The photocatalytic properties of titanium dioxide were discovered by Professor Fujiwara of Japan in 1972 and have been widely studied and applied to date. The basic principle of photocatalysis is: When semiconductor oxide (such as titanium dioxide) nanoparticles are irradiated by photons larger than the band gap energy, electrons transition from the valence band to the conduction band, resulting in electron-hole pairs, and electrons are reductive. The hole is oxidizing, and the hole reacts with 0H-(hydrogen ion) on the surface of the oxide semiconductor nanoparticle to form a highly oxidizing 0H radical (hydrogen radical), and an active 0H radical (hydrogen and oxygen) Root radicals can oxidize many refractory organics to inorganic substances such as 0) ₂ and 0. Therefore, nano-titanium dioxide can be widely used for photocatalytic degradation of fuel wastewater, pesticide wastewater, surfactants, nitrogenous organic compounds, chlorides, freons, industrial pickling wastewater and oily wastewater, and decomposes them into C0 ₂ , H ₂₀ and other small molecule minerals; It can react to volatile organic compounds (V0C) in the air, such as formaldehyde, benzene, diphenylbenzene, ammonia, nitrogen monoxide, nitrogen dioxide, nitrogen tetrachloride, trichloroethylene, tetrachloroethylene, chloroform, 1,2 - Dichlorobenzene, 1, 3-dichlorobenzene, ethylbenzene, toluene, acetaldehyde, acetic acid for degradation. In addition, it can also decompose allergens in the air and reduce allergic diseases such as hay fever and asthma. The principle based on the invention is that the use of anatase-type nano-titanium dioxide to produce ultraviolet light will produce a strong redox effect. Oxidation and decomposition of organic matter around anatase-type nano-titanium dioxide or destruction of inorganic gas molecular bond chains to achieve air quality and sterilization in a clean automobile. The guiding idea is to be able to install into a mobile vehicle using a photocatalyst processor that eliminates organic volatiles, nitrogen oxides, hydrocarbons and ozone, thus eliminating the elimination of inhalation or removal from the mobile vehicle. VOCs that are fatal to humans and actively eliminate the nitrogen oxides that are one of the six greenhouse gases in the Kyoto Protocol, and eliminate strong carcinogenic hydrocarbons and other inorganic substances.

Figure 1 shows a photocatalyst processor 1 designed as a modular structure comprising a plurality of anatase-type nano-titanium dioxide metal mesh skeleton structure filler bodies 2 embedded in a movable vehicle, at least one ultraviolet lamp Tube 3, a plurality of anatase-type nano-titanium dioxide metal mesh skeleton structure filler bodies 2 are arranged side by side, and there is a space between the filler bodies 2; the ultraviolet lamp tube 3 is placed in the space between the filler bodies 2 or placed in the filler The side of the body 2.

The anatase type nano titanium dioxide metal mesh skeleton structure filler body 2 is a block body or a sheet body and at least one is provided.

The anatase-type nano-titanium dioxide metal mesh skeleton structure filler body 2 is an irregular or regular polygonal columnar body having a vertical or parallel sectional shape, and can be irradiated by the ultraviolet lamp tube 3.

In the above embodiments, the number of the ultraviolet lamps 3 can be set as needed, and Set one or more lamps, etc.

The ultraviolet lamp tube 3 is any one of a medium-pressure ultraviolet lamp, a high-pressure mercury lamp, a black light lamp, and an ultraviolet germicidal lamp, and the ultraviolet light emitted from the ultraviolet lamp tube 3 has a wavelength of 250 nm to 380 nm.

In the photocatalyst processor 1 of Fig. 1, the air guiding fan 4 can be further provided. By using the air guiding fan 4, the air flow is further promoted, and the speed at which the anatase type nano titanium dioxide metal mesh skeleton structure body 2 absorbs various exhaust gases can be accelerated.

However, in the mobile vehicle, we can also use the negative pressure generated by the movable vehicle during the movement to promote the air flow to accelerate the exhaust gas absorption. In this case, the above-described air guiding fan 4 can be omitted.

Although, in FIG. 1, a case where the photocatalyst processor 1 is constituted by three anatase-type nano-titanium metal mesh-like skeleton structure filler bodies 2 and a plurality of ultraviolet lamps 3 sandwiched therebetween is shown, however, even if only one is used The anatase type nano titanium dioxide metal mesh skeleton structure filler body 2 and one ultraviolet lamp tube 3 (not shown) which irradiates the anatase type nano titanium dioxide metal mesh skeleton structure filler body 2 can also be configured as described above. A photocatalyst processor 1 that absorbs exhaust gas. Of course, in the case where the anatase type nano titanium dioxide metal mesh skeleton structure filler body 2 is only one, the exhaust gas absorption efficiency is certainly lower than when the anatase type nano titanium dioxide metal mesh skeleton structure filler body 2 is plural. The exhaust gas absorption efficiency.

In Figs. 2 and 3, an embodiment in which the photocatalyst processor of the present invention for eliminating organic volatiles in a movable vehicle is applied to an automobile is shown.

Specifically, in the actual application of the processor of the present invention, it is assumed that three processors 12, 14, 17 (for ease of explanation, the three processors are renumbered as 12, 14, 17) are respectively installed in the automobile. Inlet/outlet end of a pipe (such as a car air conditioning duct). The automobile air conditioning system includes, for example, an air outlet 11, an inner circulation air inlet 18 to which a filter device is installed, and an An outer circulation air inlet 15 to which a filtering device is installed, and an air conditioning processing system 13 including a heating unit, a cooling unit, and a blowing unit. In Fig. 2, the air direction is the automobile air conditioning circulation mode, the intake control valve 16 closes the inner circulation pipeline, the gas outside the vehicle is sucked into the air conditioning system, and then enters the automobile, and then the vehicle is excluded through the vent hole 19, at this time The photocatalyst processors 12 and 14 will decompose and filter a large amount of volatile organic compounds, nitrogen oxides, carbon hydroxides, and various other harmful inorganic substances existing in the vehicle when the automobile air conditioner is inhaled. In Fig. 3, the air direction is the internal circulation mode of the automobile air conditioner, and the intake control valve 16 (switched to the outer circulation pipe at this time) closes the outer circulation pipe, and the gas in the car is sucked into the air conditioning system and then re-entered into the car. The two photocatalyst processors 12 and 17 will quickly eliminate the organic volatiles that continue to emanate from the automotive interior components.

Furthermore, automotive air conditioning systems have generally been designed with air circulation power units, which are equivalent to air guiding fan functions. At this time, the air guiding fans can also be omitted.

Here, it should be noted that, in this embodiment, each photocatalyst processor is disposed in the intake/outlet circulation duct of the automobile in order to utilize the air flow in the inlet/outlet circulation duct to achieve more rapid and more efficient elimination. The effect of the exhaust gas. Of course, it is also possible to place the light sensor in any position in the closed or semi-enclosed space of the car, and only

>^;

The pressure causes the air inside the car to flow to eliminate the exhaust gas in the air.

When the processor of the present invention is specifically installed, the slot design can be directly used, and the photocatalyst processor can be conveniently installed in the vehicle inlet/outlet circulation duct.

It should be noted that the anatase titanium dioxide metal mesh skeleton structure filler body 10 is composed of two parts, one part is a twelve-sided three-dimensional metal mesh structure sponge filler, and the other part is a frame structure supporting the filler, twelve-dimensional three-dimensional The metal mesh skeleton structure sponge filler is filled in the filler frame structure. The frame structure is to fix and support the sponge filler of the twelve-dimensional three-dimensional metal mesh structure, and the twelve-dimensional three-dimensional metal mesh structure sponge filling The surface of the material is loaded with anatase (A type) titanium dioxide nano-material, and a stable and firm structure is formed, which is durable and not easy to fall off.

Anatase nano titanium dioxide metal mesh skeleton structure filler used Metalfoam

Product s Inc. MP-Ti-nano5's twelve-sided three-dimensional metal sponge material, the cavity has a cavity permeability of not less than 99.97 %, the weight is not more than 10% by volume; anatase nano titanium dioxide The material is 1 ~ 10 nm, and the specific surface area will not be less than

330m ² /g.

Ultraviolet lamps are generally supplied by inverter power supply DC6VD ~ 12V or AC10 (Tl20V, AV220 - 240V, AC380 ~ 440V, etc.) to obtain high-frequency power, according to the length of the lamp, the power of the lamp and the intensity of the ultraviolet radiation, the tube The voltage can be from 100V to 1500V, or higher, and the frequency is generally above 20O1Z. After the air with V0C contaminants passes through the nano-titanium metal mesh-like skeleton structure filler, V0C will be effectively and quickly photocatalyzed by UV-irradiated nano-titanium dioxide. Decomposition, the purified air that has been eliminated by V0C will be removed from the outlet end to achieve the powerful filtering effect of V0C in the air inside the car. However, the effect of anatase-type nano-titanium dioxide in removing various harmful substances will not be weakened or disappeared; As long as there is continuous ultraviolet irradiation, the anatase-type nano-titanium dioxide continuously generates a positive-valence photon cavity, oxidizes the organic substance, and cuts off the valence chain structure of the harmful inorganic substance.

It can be seen from the above description that the processor of the present invention can fully utilize the inlet/outlet circulation pipe or the like structure of the automobile and is disposed therein to treat volatile organic compounds, nitrogen oxides and carbon hydroxides existing in the automobile. Ozone, harmful bacteria, etc., the volatile organic compounds are efficiently and rapidly decomposed by the photocatalytic action of nano-titanium dioxide irradiated by the ultraviolet lamp in the processor, and the harmful inorganic gas is destroyed by the molecular valence chain into harmless gas molecules, photocatalyst The deodorizing effect is 150 times that of the activated carbon HEPA filter. Anatase-type nano-titanium dioxide does not weaken or disappear when removing various harmful substances; as long as there is continuous ultraviolet irradiation, anatase-type nano-titanium dioxide will continuously produce positive-valence photon holes. Further, the organic substance is oxidized and the valence chain structure of the harmful inorganic substance is cut. The super-oxidizing ability (hydroxyl radical) of anatase-type titanium dioxide photocatalyst destroys the cell membrane of the cell to cause bacterial loss to cause bacterial death; the protein of the virus is coagulated, the activity of the virus is suppressed, and the floating bacteria in the air are captured and captured. The air-conditioning fan is set to accelerate the elimination of volatile organic compounds that are fatal to humans. And all of this is subtly placed in the car air conditioner

/ Exhaust circulation pipe or similar frame structure, and block UV leakage, which not only protects the safety of the photocatalyst processor, but also does not increase or occupy any extra space of the car.

In the above, the embodiment in which the present invention is applied to an automobile has been described in detail, and those skilled in the art can apply the present invention to other sealed or semi-closed ones without the need of creative labor according to the above embodiments. In mobile vehicles, for example, almost all mass transit vehicles (such as subways, buses, airplanes, boats, etc.), and some non-mass vehicles (such as submarines, aircraft, etc.), and can be the same in various applications. The above effects are obtained.

Therefore, it is to be understood by those skilled in the art that the present invention is not intended to limit the invention. Variations and modifications of the above-described embodiments are intended to fall within the scope of the appended claims.

Claims

Rights request

1. A photocatalyst processor for eliminating organic volatiles in a mobile vehicle, characterized in that:

The processor is embedded in the mobile vehicle and includes:

At least one anatase type nano titanium dioxide metal mesh skeleton structure filler body; and at least one ultraviolet lamp tube for irradiating the anatase type nano titanium dioxide metal mesh skeleton structure filler body.

2. The photocatalyst processor for eliminating organic volatiles in a mobile vehicle according to claim 1, wherein:

The anatase-type nano-titanium dioxide metal mesh skeleton structure filler body is arranged side by side and left between the filler bodies;

The ultraviolet lamp is placed in the space between the filler bodies.

3. The photocatalyst processor for eliminating organic volatiles in a mobile vehicle according to claim 1, wherein:

The processor is embedded in an in/out gas circulation conduit of the movable vehicle.

4. The photocatalyst processor for eliminating organic volatiles in a mobile vehicle according to claim 1, wherein:

The anatase-type nano-titanium dioxide metal network structure filler body is a block or a sheet.

5. The photocatalyst processor for eliminating organic volatiles in a mobile vehicle according to claim 1, wherein:

The anatase-type nano-titanium dioxide metal mesh skeleton structure filler body is an irregular/regular polygonal columnar body having a vertical or parallel sectional shape.

6. The photocatalyst processor for eliminating organic volatiles in a mobile vehicle according to claim 1, wherein:

The ultraviolet lamp is any one of a medium pressure ultraviolet lamp, a high pressure mercury lamp, a black light lamp, and an ultraviolet germicidal lamp.

7. The photocatalyst processor for eliminating organic volatiles in a mobile vehicle according to claim 6, wherein:

The ultraviolet lamp has a wavelength of between 250 nm and 380 nm.

8. The light touch of eliminating organic volatiles in a movable vehicle according to claim 2 Media processor, which is characterized by:

At least one air guide fan.

9. A photocatalyst processor for eliminating organic volatiles in a vehicle, characterized in that: the processor is embedded in the automobile and includes

10. The photocatalyst processor for eliminating organic volatiles in a vehicle according to claim 1, wherein:

The ultraviolet lamp is placed in the space between the filler bodies.