JP2001327836A - Transporting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide technique which is capable of maintaining the function to eliminate or kill the malodorous components and bacteria in a transporting apparatus, to remove the harmful gases, such as oil and NOx, which are components of dirt on the outside surface of the transporting apparatus and to convert global warming effect gases to gases of a low global warming effect coefficient over a long period of time with saved energy. SOLUTION: The transporting apparatus to be operated while cleanliness is maintained by the cleaning effect of photocatalysts has an internal structure coated with the photocatalysts and a light source for irradiating the internal structure with light. The apparatus is capable of cleaning the inside of a room by irradiating the internal structure with the light from the light source to activate the photocatalysts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention activates a photocatalyst by natural light or artificial light to generate radicals rich in oxidizing action, purifies air, sterilizes air, keeps an internal space clean, and adheres external dirt. And further reduce N2 in the atmosphere.
The present invention relates to transportation equipment for improving the environment of an external space such as Ox removal.

[0002]

2. Description of the Related Art Various environmental measures have been taken in conventional transportation equipment. For example, in the case of railway vehicles, passengers and crew are disinfected with chemicals, glass is cleaned by workers, air conditioners are installed, and air is circulated in the vehicles and outside air is taken in for the purpose of comfortable riding inside the vehicles. Purifies the air.

[0003] Japanese Patent Application Laid-Open No. 11-192942 proposes a sterilization technique for a railway vehicle, which combines an ultraviolet-transparent glass for receiving sunlight, a photocatalyst, a heat exchanger, and a fan for circulating air in the vehicle. There has been proposed a technique of sterilizing a railway vehicle air conditioner. JP-A-10-21
No. 6629 discloses that water-repellent particles such as silicone and a photocatalyst are applied to the outer surface of a railway vehicle, and a water-repellent action of the silicone creates a surface that is not easily contaminated with dust and the like, and adds a substance that prevents the photocatalyst from hydrophilizing the silicone. A technology to do this has been proposed.

Japanese Unexamined Patent Publication No. 10-287240 proposes prevention of snow accumulation and stepping stones on a vehicle body of a railway vehicle by using a portion having hydrophilicity and water repellency.
It is described that the contact angle with water is preferably 90 ° or more.
Furthermore, Japanese Patent Application Laid-Open No. 10-287239 proposes a method for preventing snow accumulation and stepping stones on the body of a railway vehicle by the action of hydrophilicity. The surface layer contains silica and the contact angle with water is 10 ° or less. Is described as desirable.

[0005] In an ambulance, the propagation of bacteria in the vehicle is suppressed and sterilized from the viewpoint of the risk of infectious disease of a sick person and the avoidance of secondary infection to a third person such as a crew member. Need to be maintained. Therefore, indoor cleaning with a solvent is performed periodically to maintain the environment. JP-A-9-227
In Japanese Patent Publication No. 162, a photocatalyst is applied to a windshield to secure a driver's view in rainy weather.
There has been proposed a technology of a vehicle glass for rainy visibility, in which a water droplet is prevented from adhering due to rainfall or splashes received in rainy weather and drying is promoted by a heater.

In Japanese Patent Application Laid-Open No. 10-46382, the purpose of preventing the adhesion of dirt on the vehicle body surface is as follows.
A technique in which both the photocatalytic oxide particles exhibiting hydrophilicity exposed so as to come into contact with the outside air and the water-repellent portion leaking out so that the water-repellent fluororesin comes into contact with the outside air is microscopically dispersed on the surface. Proposed. Also, Japanese Patent Application Laid-Open
Japanese Patent Application Laid-Open No. 195358/1992 discloses a method in which silicone and photocatalyst, which are water-repellent particles, are applied to the outer surface of a railway vehicle for the purpose of preventing soiling due to long-term water repellency, and a water-repellent action of the silicone creates a surface that is hard to become dirty such as dust. There has been proposed a technique for adding a substance that prevents the silicone from becoming hydrophilic.

Also, Japanese Patent Application Laid-Open No. 10-147730 discloses a photocatalyst particle on a vehicle body surface for the purpose of providing a vehicle having a vehicle body that maintains cleanliness against dirt and the like due to combustion products such as dust and exhaust gas. Techniques for forming a surface layer containing silicone and a water-repellent resin have been proposed. Japanese Patent Application Laid-Open No. Hei 9-301740 proposes a technique of applying amorphous titanium oxide to a transparent member by ion plating. In the embodiment, fine particles are removed by blowing off with an air blow. The means are arranged inside the engine compartment cover, and the rear part also states that the means is similarly integrated with the rear spoiler.
In the above embodiment, the feasibility of removing and sterilizing harmful gas inside the vehicle is not described.

[0008] As a vehicle ventilation device and air purifying device,
Japanese Patent Application Laid-Open Nos. 2000-060948 and 2000
Although the technology is introduced in -006803, a device requiring electricity such as a fan is provided, and no technology relating to sterilization has been proposed. Regarding ambulance vehicles, Japanese Patent Application Laid-Open No. 10-146360,
Japanese Patent Publication No. 216175 proposes a technique in which the height of a bed in an ambulance vehicle is not changed or the damper function of the actuator is not impaired even if the bed is tilted, and the height of the bed can be changed as necessary. .

In the flying body, an air conditioner is installed for the purpose of allowing a crew or the like to ride comfortably in the aircraft. In the international community, smoke separation in the cabin has progressed, and air pollution due to smoking has been avoided. However, there is a need for a technology for removing bacteria and the like present in the cabin from odors emitted from the human body, food and drink, and the like. JP-A-10-226765 discloses that water-repellent particles of silicone and a photocatalyst are applied to the outer surface of an aircraft to prevent the surface from being soiled with dust due to the water-repellent action of the silicone. A technique for adding a substance to be added has been proposed. JP-A-10-226766 discloses photocatalyst particles,
There is a description about prevention of contamination by silicone, a water-repellent resin, and amorphous silica, and a technique for preventing contamination by making the surface water-repellent and hydrophilic is proposed.

Some underwater vehicles have a deodorizing layer such as activated carbon or an adsorbent as an environmental purification technique. Smoke, cooking, toilets, human body (mainly sweat, etc.) generate a large amount of odor components in underwater vehicles, and the burden on the deodorizing layer is large. To maintain the function, the activated carbon used for the deodorizing layer is frequently changed. There is a need. JP-A-11-26
No. 7442 proposes a system for removing carbon dioxide generated by animal breathing or engine combustion with an alkaline absorbing solution and regenerating the absorbing solution.
Further, in the case of an underwater vehicle, the air environment in the underwater vehicle is improved by exchanging gas in the underwater vehicle during the ascent.

[0011]

However, there are the following problems with the above-mentioned conventional transport equipment purification technology. For example, according to the cleaning operation of a vehicle interior performed by a worker at present, an odor removing and sterilizing effect is great when a cleaning solvent is sprayed, but odor components remain in the vehicle. Further, there is a problem that the odor removing and sterilizing functions are temporary, and the disinfecting solvent is scattered in the air, leading to deterioration of the environment and not maintaining a stable environment inside the vehicle. Also,
There is also a problem that oil used for lubrication of a device constituting a vehicle evaporates and remains in the vehicle.

In the above-mentioned JP-A-11-192942,
Electricity is required to drive a fan that circulates indoor air forcibly. Further, in JP-A-10-216629 and JP-A-10-287240, once a dirt component such as oil adheres, there is no decomposition ability, and there is also a problem that the dirt adhesion further progresses unless the dirt component is removed. .

In JP-A-2000-060948 and JP-A-2000-006803, electricity for driving a fan for forcibly circulating indoor air is required.
When applied to aircraft, it is difficult to adopt this technology as it is due to its characteristics, and there is a problem from the viewpoint of energy saving. In JP-A-10-226765 and JP-A-10-226766 described above, the effect of preventing the attachment of dirt components is achieved by making the flying object surface hydrophobic or hydrophilic. Once adhered, there is no decomposition ability, and there is also a problem that the adherence of the stain further progresses unless the stain component is removed. In the current operation of underwater vehicles, removal of odorous gas, harmful gas, and bacteria is not carried out very much, and there is a problem that the running ability is reduced when dirt accumulates outside.

The present invention has been devised in view of the above points. By applying a photocatalyst to an inner member and an outer surface of a transportation device, the photocatalyst absorbs sunlight or artificial light to generate radicals rich in oxidizing action. And, inside the transportation equipment, kill odorous components and bacteria. Outside the transportation equipment, remove harmful gases such as oil and NOx, which are dirt components, and convert global warming gas into gas with low global warming potential. The purpose is to propose technologies that enable long-lasting functions to save energy for a long time.

[0015]

SUMMARY OF THE INVENTION In order to solve these problems, the present invention is directed to a transportation device which operates while maintaining cleanliness by the action of purifying a photocatalyst.
It is provided with an internal structure coated with a photocatalyst, and a light source for irradiating the internal structure with light, and irradiating the internal structure with light from the light source to activate the photocatalyst, thereby performing indoor purification. And Further, the transport equipment of the present invention,
A transport device that operates while maintaining cleanliness by the purification action of the photocatalyst, and has an external structure coated with a photocatalyst,
By irradiating the external structure with sunlight to activate the photocatalyst, the external space and the surface of the external structure can be purified.

Further, the transport equipment of the present invention is a transport equipment which operates while maintaining cleanliness by a purifying action of a photocatalyst, wherein the internal structure coated with a photocatalyst, the external structure coated with a photocatalyst, and the internal structure A light source for irradiating light to the interior structure, and irradiating light from the light source to the internal structure to activate the photocatalyst, thereby purifying the interior, and irradiating the external structure with sunlight to activate the photocatalyst. By doing
It is characterized in that the external space and the surface of the external structure can be purified.

Further, the transportation device of the present invention includes a window for introducing sunlight into the internal structure, and activates a photocatalyst applied to the internal structure by the sunlight introduced from the window, thereby purifying a room. Can be performed. Further, the transport equipment of the present invention includes an air circulator coated with a photocatalyst on an internal structure of the transport equipment, and a light source for irradiating the air circulator with light. To activate the photocatalyst to purify the air inside the transport equipment.

Further, the transport machine of the present invention includes a medium means such as an optical fiber between the external structure and the internal structure of the transport device, and transmits electromagnetic waves such as ultraviolet rays radiated to the external structure of the transport device inside the transport device. Leading to the structure, characterized in that it is used as a light source for irradiating light to the internal structure, further provided with a solar cell in the external structure of the transport equipment,
The power stored in the solar cell is supplied to the light source having the internal structure. Further, the transportation equipment of the present invention is provided with a medium means made of an optical fiber or the like, and guides electromagnetic waves such as ultraviolet rays radiated outside the transportation equipment into the transportation equipment.

The photocatalyst of the present invention is characterized in that the photocatalyst is applied to 5% or more, preferably 20% or more of the area of the internal structure. Also, the coating is applied to 5% or more, preferably 20% or more of the area of the external structure. Further, the light source according to the present invention is characterized in that the light source is any one of a fluorescent lamp, a BLB lamp, a germicidal lamp, a cold cathode fluorescent tube, a sunlight simulation fluorescent lamp, or a combination thereof.

Further, the photocatalyst of the present invention comprises amorphous titanium oxide, anatase titanium oxide, brookite titanium oxide, rutile titanium oxide, zinc oxide, zirconia, barium titanate, strontium titanate, tungsten oxide, and manganese oxide. , Ruthenium oxide, cadmium sulfide or the like, or a combination thereof.

The photocatalyst of the present invention comprises platinum, gold, silver,
Metals such as copper, sodium, magnesium, aluminum, potassium, calcium, vanadium, chromium, manganese, cobalt, nickel, zinc, selenium, zirconium, molybdenum, palladium, tin, hafnium, and tungsten; inorganic substances such as silica, alumina, and zeolite;
An organic or inorganic polymer such as a polymethacrylic acid resin, a fluororesin, or an aromatic organic polymer or a combination thereof is added.

The present invention is characterized in that the transportation equipment is a railcar. In such a configuration, the photocatalyst is a wall, a floor, a glass, a glass blind, a strap, a strap, a net rack, a seat, a lighting cover, a light source, an air inlet of an air conditioner, an air outlet of an air conditioner of the railcar. , A body painting part, a roof, a pantograph, a cart, or a combination thereof.

The present invention is characterized in that the transportation device is a special vehicle such as an ambulance vehicle, a blood donation vehicle, an X-ray photographing vehicle, a nursing vehicle, and a camper. In such a configuration, the photocatalyst is applied to a wall of the special vehicle, glass, a glass blind, a lighting cover, a light source, or a combination thereof.

The present invention is characterized in that the transportation device is a flying object. In such a configuration, the photocatalyst is one of or a wall of the flying object, a floor, a glass, a glass blind, a luggage door, a seat, a lighting cover, a light source, an air inlet of an air conditioner, and an air outlet of the air conditioner. It is characterized in that it is applied to a plurality of combined locations. The present invention is characterized in that the transportation device is an underwater vehicle. Such a configuration is characterized in that the photocatalyst is applied to a wall, a floor, a lighting cover, a light source, or a combination of a plurality thereof in the underwater vehicle.

[0025]

Since the present invention is constructed as described above, the photocatalyst applied to the internal or external structure of the transportation device absorbs sunlight or artificial light to generate radicals rich in oxidizing action, It can kill odors and bacteria inside the transportation equipment, that is, purify the inside of the transportation equipment. Outside the transportation equipment, oil and NOx, SOx, C
It can also remove harmful substances such as O _2, and when applied to a flying object, also uses an environment in which ultraviolet rays are extremely higher than the ground to reduce global warming gas into a gas with a low global warming potential. Can be converted to

[0026]

Embodiments of the present invention will be described. In the embodiment of the present invention, as one example, titanium oxide is applied to the surface of a member such as glass constituting the inside of a railway vehicle, absorbs ultraviolet rays of 400 nm or less contained in sunlight, and emits odorous gas and odor inside the vehicle. It is to remove gas and sterilize.

[0027] The internal structure of the railway car is a wall, a floor, glass,
Consists of glass blinds, straps, straps, net racks, seats, lighting covers, light sources, air inlets for air conditioners, air outlets for air conditioners, etc. Apply. In particular, in the case of using sunlight, it is effective to apply the composition to a portion where the intensity of ultraviolet rays from the outside is strong, such as glass, a glass blind, or near a window. In addition, photocatalytic oxidative decomposition function,
In order to perform the sterilization function and keep the inside of the vehicle clean,
It is effective that the portion to which the photocatalyst is applied is 5% or more of the area constituting the inside of the railway vehicle. If the area to which the photocatalyst is applied is smaller than 5%, the function of removing the odor gas and the harmful gas by the photocatalyst is lower than the function of generating the odor gas and the harmful gas, and the environment in the vehicle cannot be sufficiently maintained.

The exterior structure of the railway vehicle is composed of a painted body, a roof,
A photocatalyst is applied to a place made of glass, a pantograph, a cart, or the like, or any one of these or a combination thereof. As for the external structure, it is desirable to apply it to the entire surface, but it is particularly effective to apply it to a wall, a glass part, a painted part of a car body, a roof, etc., having a strong ultraviolet intensity. Also, in the curved part from the roof to the side part, the inclination angle is smaller than that of the side part, and the formation of water droplets is large, and if the trace of water droplet formation remains, the view from the inside is limited, so apply it to these parts. It is also effective to prevent contamination.

If a window is provided at a position where sunlight can be introduced into a place where the photocatalyst is applied, sunlight can be used as a light source used for illumination for activating the photocatalyst. , A fluorescent lamp, a BLB lamp, a germicidal lamp, a cold-cathode fluorescent tube, and an ultraviolet ray generated by a sunlight simulation fluorescent lamp are used in combination. In addition, sunlight irradiated to the external structure can be introduced by an optical fiber and used as a light source for irradiating the internal structure. The configuration in which sunlight is guided into the interior by an optical fiber includes a light collecting port, an optical fiber, emitted light, and a scattering panel. As a place to install the light guide,
Arranged at the top and side of the transport equipment, so that the optical fibers guided from the left, right, and top that are guided so that light is uniformly irradiated into the transport equipment regardless of the position of the sun are arranged uniformly It is characterized by.

Any of photocatalysts is possible, but amorphous titanium oxide, anatase titanium oxide, brookite titanium oxide, rutile titanium oxide, zinc oxide, zirconia, barium titanate, strontium titanate, tungsten oxide, Manganese oxide, ruthenium oxide and cadmium sulfide are preferred. In particular, amorphous titanium oxide, anatase titanium oxide, brookite titanium oxide, and rutile titanium oxide are desirable in terms of safety, durability with chemicals, transparency, and the like.

Platinum, gold, silver, copper, sodium,
Magnesium, aluminum potassium, calcium, vanadium, chromium, manganese, cobalt, nickel, zinc, selenium, zirconium, molybdenum, palladium,
Metals such as tin, hafnium and tungsten, silica,
It is also possible to add at least one of inorganic substances such as alumina and zeolite, and organic and inorganic polymers such as polymethacrylic resin, fluororesin, and aromatic organic polymer. By adding a metal, an increase in the number of radicals generated by photoexcitation and inactivation of radicals can be suppressed. By adding an inorganic substance or an organic polymer, it is possible to improve physical properties such as transparency, gloss and adhesion of the coated surface.

When the present invention is applied to transportation equipment other than railway vehicles, a photocatalyst is applied to a location effective for activation of the photocatalyst according to the structure of the transportation equipment and the conditions of the light source. For example,
When applying the present invention to a special vehicle such as an ambulance vehicle, a blood donation vehicle, an X-ray photography vehicle, a nursing vehicle, a camper, etc., as a part to which a photocatalyst is applied, a wall, a floor, glass, glass blinds, seats, a seat of the special vehicle, It can be applied to any one of a medical device, a bed, a lighting cover, a light source, an air inlet of an air conditioner, an air outlet of an air conditioner, a vehicle body painting portion, a roof, or a combination of two or more of them. In particular, a wall, a glass part, a glass blind, a painted body part, a roof, and the like having a strong ultraviolet intensity are desirable. Further, by applying a photocatalyst to the opening to the outside, it is effective to prevent the leakage of bacteria from inside the vehicle.

When the transportation equipment is a flying object, the parts to which the photocatalyst is applied are walls, floors, window members, blinds, luggage doors, seats, lighting covers, light sources, air inlets of air conditioners, air conditioners of the flying objects. Can be applied to any one of the air outlet portion and the body coating portion or a combination thereof. In particular, walls, windows, blinds,
An aircraft body surface, a wing and the like are desirable.

When the transportation device is an underwater vehicle, the parts to which the photocatalyst is applied include a machine room of the underwater vehicle, a living area, a toilet, a dining room wall, a floor, a seat, a lighting cover, a light source, an air inlet of an air conditioner, It can be applied to any one of the air outlet part of the air conditioner and the body painting part, or a combination thereof. In particular, a lighting cover, a light source glass part, and a body surface part having a strong ultraviolet intensity are desirable.

It is desirable to apply the photocatalyst to the entire outer surface of the underwater vehicle, but it is preferable to apply the photocatalyst to the local area of the bay from the top to the side depending on the structure of the underwater vehicle. In the curved portion, the inclination angle is smaller than that of the side surface, and water droplets are formed more frequently, and there is a high possibility that dirt components are deposited. During traveling on the sea, adhesion of marine life and dirt can be prevented at the boundary with the sea surface. It is also possible to arrange a solar cell on the surface of an underwater vehicle, accumulate electric power when traveling on the sea, cause the light source to emit light with the accumulated electric power, and use the light source as an excitation source for a photocatalyst.

Further, the present invention can be adapted to the operating conditions of transport equipment. That is, the transportation equipment described in this patent is a transportation equipment that is operated in the daytime, while the photocatalysis reaction is constantly progressing under sunlight, while the transportation equipment mainly for night operation such as a sleeper vehicle is used. In the case of nighttime operation, the above-mentioned functions such as harmful gas removal are weak, but harmful components are collected by adsorption and odors are removed, and electricity is used during daytime parking. Deodorization and sterilization functions are realized, and the photocatalytic function is restored.

[0037]

[Example 1] The inner surfaces of 40 sheets of glass constituting a railway vehicle (2.75 width x 2.22 height x 17.69 m length) were wiped dry with a rag to remove attached debris, and then ethanol was used. Finishing treatment was performed. Thereafter, an anatase-type titanium oxide coating material was applied to the inner surface of the glass (total area: 24.60 m ² ) by a spray method, and then dried by a drier. The amount of anatase-type titanium oxide applied to the glass surface was 20 g per 1 m ² , and was 0.05 μm in thickness measurement by a stylus-type film thickness meter. The transparency of the glass before and after application was hardly changed. The photocatalyst application area was 13.1% of the total area constituting the vehicle. The vehicle coated with the above photocatalyst is about 1000k / day
m for about four months. As a result of measuring the odor in the vehicle with the odor sensor, the average odor value of the applied vehicle was 350
On the other hand, it was 400 or more in the other connected vehicles, and the deodorizing effect was confirmed for a long time.

[0038]

[Example 2] The outer surface of 40 sheets of glass constituting a railway car (2.75 width x 2.22 height x 17.69 m length) was wiped dry with a rag to remove attached debris, and then with ethanol. Finishing treatment was performed. Thereafter, an anatase-type titanium oxide coating material was applied to the inner surface of the glass (total area: 24.60 m ² ) by a spray method, and then dried by a drier. Further, the photocatalyst application area with respect to the total outer area constituting the vehicle was 13.1%. The vehicle coated with the above-mentioned photocatalyst was operated for about 1000 km per day for about 4 months. When water was sprayed, a water film was formed over the entire surface of the window glass, and there was no adhesion of dirt components.

[0039]

Example 3 As described in Example 1, an anatase type titanium oxide was applied to the inside of the glass in one room (width 1 × height 1.81 × length 2m) of a vehicle used as a sleeper vehicle. The coated area of the photocatalyst was 6.5%. In the construction room, one cigarette was burned as sidestream smoke for 7 minutes to generate odor gas in the room. Thereafter, the seeds covering the outside of the window were removed in advance, and the room was irradiated with sunlight (ultraviolet intensity: 0.6 mw / cm ² ). 95c on the floor
m, the indoor odor was measured by the odor sensor at a position 30 cm from the center of the window. As shown in FIG. 1, the peak value of the odor value after the completion of combustion was 700 in the construction vehicle, and the person was irritated. 6 which is the smell value that smells
00 disappeared within 10 minutes.

[0040]

Comparative Example 1 The change in the odor value when tobacco was burned in the same size room of Example 2 was examined. Immediately after tobacco combustion, the odor value reached 900,
Even after one minute, the odor value did not fall below 600 where a pungent odor was felt.

[0041]

Example 4 As described in Example 1, an anatase type titanium oxide was applied to the inside of glass in one room (width 2 × height 1.81 × length 2m) of a vehicle used as a sleeper vehicle. The coated area of the photocatalyst was 4.3%. The same deodorizing effect as in Example 3 was confirmed.

[0042]

Embodiment 5 Quartz tube (length 550 mm, diameter 30 mm)
Was coated with 0.05 g of the photocatalyst described in Example 1. NO gas (concentration 3 ppm, air balance) 1
L / min, and a BLB lamp (0.98 mw / cm ² ) was irradiated from outside the tube as simulated sunlight. N by light irradiation
The O removal rate was 95%, and the NOx removal rate was 50% or more. FIG. 2 shows the result.

[0043]

Example 6 In the same manner as in Example 1, a test piece was prepared by coating the surface of a slide glass with anatase-type titanium oxide. The prepared slide glass was placed in a glass petri dish, heated at 70 ° C. for 1 hour, and allowed to cool. After that, Escherichia COLLIF was placed on the slide glass surface.
0.2ml of a bacterial solution obtained by culturing 012734 (5 × 105 c
ell / ml), the lid of the Petri dish was closed, and the UV intensity was 0.03 mw / cm ² (wavelength 365 nm) at 25 ° C.
Irradiated for a certain time underneath. After the bacterial solution on the slide glass was wiped off with sterile gauze, the gauze was put into sterile saline and stirred. In addition, in order to collect the bacterial solution remaining on the slide glass, it was washed and put in gauze, and the total amount of physiological saline was 10 ml. Bacterial solution was placed in a Petri dish containing SCDLP agar medium by a plate culture method.
and cultured for 24 hours at 30 ° C. in a dark place. SCL
Count the number of colonies generated on the agar medium on DP,
When the survival rate was calculated, the survival rate of Escherichia coli was 10% by irradiation with ultraviolet rays for 120 minutes. FIG. 3 shows the result.

[0044]

Comparative Example 2 The antibacterial test of Example 6 was carried out on a slide glass not coated with a photocatalyst. As a result, the survival rate of E. coli was 100%, and no antibacterial activity was confirmed.

[0045]

EXAMPLE 7 An inner surface of a 2 L quartz separable flask was coated with anatase type titanium oxide and heated at 110 ° C. for 30 minutes.
And dried. The amount of titanium oxide coated on the inner surface of the separable flask was 0.04 g. The application area was 0.062 m ² , and 90% of the separable flask was applied. The separable flask is irradiated with sunlight (ultraviolet light intensity 0.3 to 0.8 mw / cm ² ), and 500 pp
m of acetaldehyde was evaluated for decomposition characteristics. Due to the irradiation of sunlight, the acetaldehyde value in the flask decreased, and the entire amount disappeared in about 40 minutes. Further analysis of carbon dioxide in the flask revealed that the concentration of carbon dioxide in the flask increased simultaneously with the irradiation. FIG. 4 shows the result. Acetaldehyde was decomposed and removed by the photocatalyst of anatase type titanium oxide.

[0046]

As described above, the present invention has the following effects. (1) The internal and external structures of the transportation equipment are kept clean for a long period of time. (2) The air in the transportation equipment can be kept clean, and the safety and comfort of the occupants can be maintained. (3) It is possible to prevent adhesion of dirt on the inner and outer surfaces of glass, tempered glass, reinforced plastic, and the like, to secure transparency, and to secure visibility. (4) The photocatalyst applied to the outer surface of the transportation equipment is excited by sunlight to prevent the outer surface from being stained. (5) The photocatalyst applied to the outer surface of the transport equipment is excited by sunlight and is oxidized by NOx, ammonia, amine compounds, aldehydes, sulfides such as methyl merlecaptan, volatile halogen compounds such as dioshkin, and volatile carbon such as benzene. Decomposes harmful gases such as hydrogen.

[Brief description of the drawings]

FIG. 1 is a graph showing a change in odor value due to tobacco combustion showing Example 3 and Comparative Example 1 of the present invention.

FIG. 2 is a graph showing the results of a NOx removal test showing Example 5 of the present invention.

FIG. 3 is a graph showing the antibacterial effect of Example 6 and Comparative Example 2.

FIG. 4 is a graph showing acetaldehyde removal in Example 7 of the present invention.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B01J 21/06 B01D 53/36 ZABJ 35/02 B B61D 49/00 HZC 102B (72) Inventor Murakami Akihiro 1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Akashi Factory (72) Inventor Kenkichi Sakai 2-4-1 Hamamatsucho, Minato-ku, Tokyo Kawasaki Heavy Industries, Ltd. Tokyo headquarters F-term (reference) 4C080 AA07 BB02 BB05 CC02 CC03 CC05 CC07 CC08 HH05 JJ04 KK08 LL10 MM02 MM07 NN01 NN22 QQ20 4D048 AA06 AA22 AB01 AB03 AB05 BA01Y BA02Y BA03Y BA06Y BA07X BA07Y BA08Y BA10Y BA23Y BA15Y BA15Y BA15Y BA15Y BA15Y BA14Y BA15Y BA41Y BA42Y BB03 CC38 CC40 EA01 4G069 AA03 AA08 BA01A BA02A BA03A BA04A BA04B BA05A BA07A BA13A BA14A BA14B BA17 BA22A BA48A BB04A BB04B BB06A BB09A BC02A BC03A BC09A BC10A BC16A BC22A BC31A BC32A BC33A BC35A BC36A BC50A BC51A BC52A BC54A BC58A BC59A BC60A BC62A BC67A BC68A BC70A BC72A CA13A BC17A11

Claims (20)

[Claims] 1. A transportation device that operates while maintaining cleanliness by a purifying action of a photocatalyst, comprising: an internal structure coated with a photocatalyst; and a light source that irradiates light to the internal structure.
A transportation device characterized by irradiating light from the light source to the internal structure to activate a photocatalyst, thereby purifying a room. 2. A transportation device that operates while maintaining cleanliness by a purifying action of a photocatalyst, comprising an external structure coated with a photocatalyst, and irradiating the external structure with sunlight to activate the photocatalyst. Transport equipment characterized in that it can purify an external space and an external structure surface. 3. A transportation device which operates while maintaining cleanliness by a purifying action of a photocatalyst, comprising: an inner structure coated with a photocatalyst; an outer structure coated with a photocatalyst; and a light source for irradiating the inner structure with light. And irradiates light from the light source to the internal structure to activate a photocatalyst to purify the interior, and irradiates sunlight to the external structure to activate the photocatalyst, thereby providing an external space and an external A transportation device characterized in that the surface of the structure can be purified. 4. The method according to claim 1, wherein a window for introducing sunlight is provided in the internal structure, and the sunlight introduced from the window activates a photocatalyst applied to the internal structure to purify a room. The transportation equipment according to claim 1, wherein the transportation equipment comprises: 5. An air circulator coated with a photocatalyst and a light source for irradiating the air circulator with light, and irradiating light from the light source to the inside of the air circulator. The transportation device according to claim 1, wherein a photocatalyst is activated to purify air inside the transportation device. 6. A transportation device comprising a medium means comprising an optical fiber or the like between the external structure and the internal structure of the transportation device, and guiding electromagnetic waves such as ultraviolet rays irradiated to the external structure of the transportation device to the internal structure of the transportation device, The transportation equipment according to claim 1, wherein the transportation equipment is used as a light source for irradiating light to a vehicle. 7. The transportation device according to claim 1, wherein a solar cell is provided on an external structure of the transportation device, and power stored by the solar cell is supplied to a light source of the internal structure. 8. The photocatalyst has an area of 5% of the internal structure.
The transport equipment according to any one of claims 1 to 7, wherein the transport equipment is applied in an amount of at least 20%. 9. The photocatalyst has an area of 5% of the external structure.
The transport equipment according to any one of claims 2 to 8, wherein the coating is applied in an amount of at least 20%. 10. The light source according to claim 1, wherein the light source is any one of a fluorescent lamp, a BLB lamp, a germicidal lamp, a cold cathode fluorescent tube, and a simulated sunlight fluorescent lamp, or a combination thereof. Transport equipment. 11. The photocatalyst is amorphous titanium oxide, anatase titanium oxide, brookite titanium oxide, rutile titanium oxide, zinc oxide, zirconia, barium titanate, strontium titanate, tungsten oxide, manganese oxide, ruthenium oxide. The transportation equipment according to claim 1, wherein the transportation equipment is made of any one of semiconductors such as cadmium sulfide and a combination thereof. 12. The photocatalyst is platinum, gold, silver, copper, sodium, magnesium, aluminum, potassium, calcium, vanadium, chromium, manganese, cobalt,
Nickel, zinc, selenium, zirconium, molybdenum,
Metals such as palladium, tin, hafnium, and tungsten; inorganic substances such as silica, alumina, and zeolite; and organic or inorganic polymers such as polymethacrylic acid resins, fluororesins, and aromatic organic polymers, or a combination of these. The transportation equipment according to claim 1, wherein: 13. The transportation device according to claim 1, wherein the transportation device is a railway vehicle. 14. The photocatalyst may be a wall, a floor, a glass, a glass blind, a strap, a strap, a net shelf, a seat, a light cover, a light source, an air inlet of an air conditioner, an air outlet of an air conditioner of the railcar. Part, body outer wall, roof, pantograph,
14. The transportation equipment according to claim 13, wherein the transportation equipment is applied to any one of the carts or a place where a plurality of them are combined. 15. The transportation device may be an ambulance vehicle, a blood donation vehicle,
The transportation equipment according to claim 1, wherein the transportation equipment is a special vehicle such as an X-ray photography vehicle, a nursing care vehicle, and a camping car. 16. The transportation according to claim 15, wherein the photocatalyst is applied to a wall, a glass, a glass blind, a lighting cover, a light source, or a combination thereof of the special vehicle. machine. 17. The transportation device according to claim 1, wherein the transportation device is a flying object. 18. The photocatalyst may be any one of a wall, a floor, glass, a glass blind, a luggage door, a seat, a lighting cover, a light source, an air inlet of an air conditioner, and an air outlet of an air conditioner of the flying object. 18. The transportation equipment according to claim 17, wherein the transportation equipment is applied to a place where a plurality of combinations are provided. 19. The transportation device according to claim 1, wherein the transportation device is an underwater vehicle. 20. The transportation device according to claim 19, wherein the photocatalyst is applied to a wall, a floor, a lighting cover, a light source, or a combination thereof in a plurality of places of the underwater vehicle.