JPH09271635A - Apparatus for cleaning air in tunnel and tunnel interior panel used therein - Google Patents
Apparatus for cleaning air in tunnel and tunnel interior panel used thereinInfo
- Publication number
- JPH09271635A JPH09271635A JP8081089A JP8108996A JPH09271635A JP H09271635 A JPH09271635 A JP H09271635A JP 8081089 A JP8081089 A JP 8081089A JP 8108996 A JP8108996 A JP 8108996A JP H09271635 A JPH09271635 A JP H09271635A
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- titanium dioxide
- interior plate
- tunnel interior
- outer layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 118
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 58
- 230000001678 irradiating effect Effects 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 6
- 239000000356 contaminant Substances 0.000 claims description 18
- 239000003463 adsorbent Substances 0.000 claims description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 21
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 20
- 239000003344 environmental pollutant Substances 0.000 abstract description 14
- 231100000719 pollutant Toxicity 0.000 abstract description 14
- 230000000007 visual effect Effects 0.000 abstract description 11
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 10
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 10
- 230000001590 oxidative effect Effects 0.000 abstract description 10
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000843 powder Substances 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 abstract description 6
- 230000003213 activating effect Effects 0.000 abstract description 4
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 229910052815 sulfur oxide Inorganic materials 0.000 description 8
- 230000004913 activation Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 239000011737 fluorine Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000004887 air purification Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 enamel Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Catalysts (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、トンネル内の空気
を効果的に浄化させることのできるトンネル内大気浄化
装置およびその装置に用いられるトンネル内装板に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel air purifying device capable of effectively purifying air in a tunnel and a tunnel interior plate used in the device.
【０００２】[0002]
【従来の技術】従来、トンネル内には、装飾性の向上と
反射等による照明効果の向上等、トンネル内の視環境の
改善を図るためにトンネル内装板が取付けられ、また車
両の排気ガスやタイヤの磨耗粉等により発生した窒素酸
化物や硫黄酸化物等からなる汚染物質により汚染された
トンネル内の空気は、強制的に外部に排出されるように
なされている。2. Description of the Related Art Conventionally, a tunnel interior plate has been installed in a tunnel in order to improve the visual environment in the tunnel, such as improvement of decorativeness and improvement of lighting effect due to reflection, etc. The air in the tunnel, which is contaminated with pollutants such as nitrogen oxides and sulfur oxides generated by tire abrasion powder and the like, is forcibly discharged to the outside.
【０００３】[0003]
【発明が解決しようとする課題】しかしながらトンネル
内の汚染された空気を、強制的に排出させても完全には
外部に排出されないため、依然としてトンネル内の空気
汚染の問題が残り、また排出される空気を浄化させずに
そのまま外部に排出させると、それによってトンネル近
辺の空気を汚染するといった問題があった。また空気中
に浮遊した前記排気ガスやタイヤの磨耗粉等の汚染物質
がトンネル内装板に付着して、トンネル内の美観や視環
境を悪化させるため、定期的に清掃車等でトンネル内装
板を清掃する必要があり、これらのメンテナンスが面倒
であった。However, even if the polluted air in the tunnel is forcibly discharged, it is not completely discharged to the outside, so that the problem of air pollution in the tunnel still remains and is also discharged. If the air is discharged to the outside without being purified, there is a problem that it pollutes the air near the tunnel. In addition, since pollutants such as the exhaust gas and tire abrasion powder floating in the air adhere to the tunnel interior plate and deteriorate the aesthetics and visual environment inside the tunnel, regularly clean the tunnel interior plate with a cleaning vehicle. They had to be cleaned, and maintenance of them was troublesome.
【０００４】そこで本発明は上記の如き問題を解決し、
トンネル内の汚染物質を除去し、視環境の維持を図ると
共に空気浄化を図るようになされたトンネル内空気浄化
装置およびその装置に用いられるトンネル内装板を提供
せんとするものである。Therefore, the present invention solves the above problems,
(EN) An air purifying device in a tunnel, which is designed to remove pollutants in a tunnel, maintain a visual environment, and purify air, and a tunnel interior plate used in the device.
【０００５】[0005]
【課題を解決するための手段】本発明者は、いかにして
トンネル内の汚染物質を除去し、空気を浄化するかを鋭
意研究した結果、二酸化チタンは紫外光を照射すること
により活性化され、その活性化により強い酸化力を発現
するものであること、視環境の改善を図るトンネル内装
板の表面にこの二酸化チタンを含む外層を形成し、該表
面に紫外光を照射して、二酸化チタンを活性化させるよ
うにすれば、その活性化による強い酸化力により汚染物
質の原因である窒素酸化物や硫黄酸化物が硝酸や硫酸等
に酸化されて効果的に除去されること等を知得し、本発
明を完成するに至った。Means for Solving the Problems The present inventor has conducted earnest research on how to remove pollutants in a tunnel and purify air. As a result, titanium dioxide is activated by irradiation with ultraviolet light. The titanium dioxide containing the titanium dioxide is formed by forming an outer layer containing the titanium dioxide on the surface of the tunnel interior plate for improving the visual environment by activating the titanium dioxide. It is known that if activated, the nitrogen oxides and sulfur oxides that cause pollutants are effectively oxidized and removed by nitric acid, sulfuric acid, etc. due to the strong oxidizing power of the activation. Then, the present invention has been completed.
【０００６】すなわち本発明に係るトンネル内空気浄化
装置は、表面に二酸化チタンを含む外層が形成されたト
ンネル内装板と、前記二酸化チタンを活性化させて空気
中の汚染物質を捕捉させるために、トンネル内装板の表
面に紫外光を照射する光源装置と、トンネル内装板の表
面に捕捉された汚染物質を洗い流すための洗浄装置と
が、トンネルの側壁に取付けられてなることを特徴とす
るものである。That is, the device for purifying air in a tunnel according to the present invention comprises: a tunnel interior plate having an outer layer containing titanium dioxide formed on a surface thereof; and a device for activating the titanium dioxide to trap contaminants in the air. A light source device for irradiating the surface of the tunnel interior plate with ultraviolet light, and a cleaning device for washing away the contaminants trapped on the surface of the tunnel interior plate are attached to the side wall of the tunnel. is there.
【０００７】また本発明に係るトンネル内装板は、トン
ネルの側壁に取付けられるトンネル内装板であって、表
面に二酸化チタンを含む外層が形成され、該表面に紫外
光を照射することにより、二酸化チタンが活性化される
ようになされたことを特徴とするものである。The tunnel interior plate according to the present invention is a tunnel interior plate attached to a side wall of a tunnel, wherein an outer layer containing titanium dioxide is formed on the surface, and the titanium dioxide is irradiated by irradiating the surface with ultraviolet light. Is characterized by being activated.
【０００８】本発明によるトンネル内空気浄化装置によ
れば、トンネル内装板によりトンネル内の視環境の向上
が図れる。また光源装置により照射された紫外光によ
り、トンネル内装板の表面に形成された二酸化チタンを
含む外層の二酸化チタンが活性化されることにより、車
両の排気ガスやタイヤの磨耗粉等により発生した窒素酸
化物や硫黄酸化物等の汚染物質が外層表面に吸着されれ
ば、また空気中を拡散したこれら汚染物質が外層表面に
触れれば、汚染物質は二酸化チタンの活性化による強い
酸化力と水分の存在によって硝酸や硫酸等に酸化されて
トンネル内装板の表面に捕捉され、トンネル内の空気浄
化が効果的に図れる。しかもこの捕捉された汚染物質は
トンネル内装板の表面に蓄積することなく洗浄装置によ
り洗い流され、外層の二酸化チタンの活性化が阻害され
ることがなく、繰り返し汚染物質を捕捉除去することが
でき、また視環境の悪化が防止される。According to the in-tunnel air purifying apparatus of the present invention, the tunnel interior plate can improve the visual environment in the tunnel. In addition, the ultraviolet light emitted from the light source device activates the titanium dioxide in the outer layer containing titanium dioxide formed on the surface of the tunnel interior plate, so that nitrogen generated by vehicle exhaust gas or tire abrasion powder is generated. If contaminants such as oxides and sulfur oxides are adsorbed on the outer layer surface, or if these contaminants that have diffused in the air come into contact with the outer layer surface, the contaminants will have strong oxidizing power and moisture due to the activation of titanium dioxide. Due to the presence of carbon dioxide, it is oxidized to nitric acid, sulfuric acid, etc. and trapped on the surface of the tunnel interior plate, so that the air in the tunnel can be effectively purified. Moreover, the trapped contaminants are washed away by the cleaning device without accumulating on the surface of the tunnel interior plate, the activation of titanium dioxide in the outer layer is not hindered, and the contaminants can be captured and removed repeatedly, Further, deterioration of the visual environment is prevented.
【０００９】また本発明によるトンネル内装板によれ
ば、表面に二酸化チタンを含む外層が形成され、該表面
に紫外光を照射することにより、二酸化チタンが活性化
されるようになされているので、このトンネル内装板を
トンネルの側壁に取付けることにより、トンネル内の視
環境の改善を図ることが出来ると共に、表面に紫外光を
照射して二酸化チタンを活性化させておくことにより、
車両の排気ガスやタイヤの磨耗粉等により発生した窒素
酸化物や硫黄酸化物等からなる汚染物質を、硝酸や硫酸
等に酸化させて効果的に除去することができる。Further, according to the tunnel interior plate of the present invention, the outer layer containing titanium dioxide is formed on the surface, and the titanium dioxide is activated by irradiating the surface with ultraviolet light. By installing this tunnel interior plate on the side wall of the tunnel, it is possible to improve the visual environment inside the tunnel, and by irradiating the surface with ultraviolet light to activate titanium dioxide,
It is possible to effectively remove pollutants such as nitrogen oxides and sulfur oxides generated by vehicle exhaust gas, tire abrasion powder, etc. by oxidizing nitric acid, sulfuric acid, and the like.
【００１０】本発明のトンネル内装板としては、石綿ス
レートやセメント、ほうろう等の無機質板からなるも
の、ポリエチレンやポリプロピレン、塩化ビニル樹脂、
ＡＢＳ樹脂等の合成樹脂板からなるもの、亜鉛メッキ鋼
やステンレス鋼、アルミニウム合金等の金属板からなる
もの、また前記金属板の表面にほうろうやシリコーン化
合物の如き無機質層、またはふっ素樹脂等の有機物質層
が形成されているもの等、特に限定されることなく用い
られる。The tunnel interior plate of the present invention is made of an inorganic plate such as asbestos slate, cement, enamel, polyethylene, polypropylene, vinyl chloride resin,
Those made of synthetic resin plates such as ABS resin, those made of metal plates such as galvanized steel, stainless steel, aluminum alloy, etc., inorganic layers such as enamels and silicone compounds on the surface of the metal plates, or organic such as fluorine resins It is used without any particular limitation, such as a material layer formed thereon.
【００１１】前記トンネル内装板の表面に形成された二
酸化チタンを含む外層は、二酸化チタンのみから形成さ
れていてもよく、二酸化チタンに加えて他の材料が含ま
れていてもよく、またふっ素系合成樹脂等のバインダー
中に分散されていてもよい。他の材料を含む場合は、二
酸化チタンと共に吸着剤が含まれているのが好ましい。
このようになされていると吸着剤に窒素酸化物や硫黄酸
化物等からなる汚染物質が外層に吸着されると共に、そ
の吸着された汚染物質は除去が可能な状態まで、すなわ
ち二酸化チタンにより硝酸や硫酸等に酸化されるまで脱
着されることが防止される。吸着剤としては、活性炭、
ゼオライト、カーボン等が一般に使用される。The outer layer containing titanium dioxide formed on the surface of the tunnel interior plate may be formed only of titanium dioxide, may contain other material in addition to titanium dioxide, and may be a fluorine-based material. It may be dispersed in a binder such as a synthetic resin. If other materials are included, it is preferred that the adsorbent be included with the titanium dioxide.
In this way, contaminants such as nitrogen oxides and sulfur oxides are adsorbed on the outer layer by the adsorbent, and the adsorbed contaminants are removed to a state where they can be removed, that is, titanium dioxide and nitric acid are removed by titanium dioxide. Desorption is prevented until it is oxidized to sulfuric acid or the like. As the adsorbent, activated carbon,
Zeolite, carbon, etc. are generally used.
【００１２】前記二酸化チタンはルチル型でもよいが、
活性の高さからアナターゼ型のものが好ましく、この二
酸化チタンに波長領域が３００〜４００ｎｍの紫外光を
照射することによって二酸化チタンは活性化され、その
活性化により強い酸化力が発現されるのであり、従って
この活性化による強い酸化力により、二酸化チタンの表
面に付着したり接した窒素酸化物や硫黄酸化物等からな
る汚染物質を水分の存在により硝酸や硫酸等に酸化して
捕捉することができる。この二酸化チタンに効率よく前
記の如き汚染物質を捕捉させるためには、二酸化チタン
ができるだけ汚染物質に触れるように、接触面積をでき
るだけ大きくすることが好ましく、従って表面積の大き
い状態、すなわち二酸化チタンが粒子径０．００５〜
０．００７μｍ程度の超微粒子状や膜厚０．１〜０．８
μｍ程度の薄膜状となされているのが好ましい。The titanium dioxide may be of rutile type,
From the viewpoint of high activity, anatase type is preferable, and titanium dioxide is activated by irradiating the titanium dioxide with ultraviolet light having a wavelength range of 300 to 400 nm, and strong oxidative power is expressed by the activation. Therefore, due to the strong oxidizing power of this activation, it is possible to oxidize and capture pollutants such as nitrogen oxides and sulfur oxides that are attached to or in contact with the surface of titanium dioxide, due to the presence of water, to nitric acid or sulfuric acid. it can. In order for the titanium dioxide to efficiently capture the pollutant as described above, it is preferable to make the contact area as large as possible so that the titanium dioxide comes into contact with the pollutant as much as possible. Diameter 0.005
Ultra fine particles of about 0.007 μm and film thickness 0.1 to 0.8
It is preferable that the thin film has a thickness of about μm.
【００１３】二酸化チタンを含む外層をトンネル内装板
の表面に形成するには、二酸化チタンまたは二酸化チタ
ンと吸着剤等の他の材料とからなる混合物、または二酸
化チタン等をフッ素系合成樹脂等のバインダー中に分散
させた混合物等を適宜方法で付着させればよく、この方
法としては、二酸化チタンや二酸化チタンの混合物等の
粉末を溶融させて吹き付ける溶射法、化学反応を介して
析出させるＣＶＤ（化学的製膜法）、スプレーにて吹き
付けるスプレー法、スパッタ蒸発させて沈着させるスパ
ッタ蒸着法、真空蒸着、塗装等が適用されるが、特に限
定されるものではなく、少なくとも外層に含まれた二酸
化チタンが表面に露出され、その露出された二酸化チタ
ンに紫外光が照射されると活性化されるようになされて
いればよい。また二酸化チタン等をフッ素系合成樹脂等
のバインダー中に分散させた混合物から外層を形成する
には、バインダーとしては、フッ素系やポリエステル系
等の合成樹脂、セラミック系塗料の如き無機塗料のよう
に二酸化チタンの活性による強い酸化力に侵されない
か、または侵されにくいバインダーを使用するのが好ま
しく、さらにトンネル内装板が金属板から形成される場
合は、活性化された二酸化チタンにより発生した硝酸や
硫酸等に腐食されないように、その表面に耐酸性を有す
る保護層を形成し、その上に二酸化チタンを含む外層を
形成するのが好ましい。この保護層としては、耐酸性に
極めて強いポリエステル系やフッ素系、アクリル系、ウ
レタン系等の有機系塗料、並びにセラミック系塗料、有
機と無機のハイブリッド型塗料等を塗布することによっ
て、一般に形成されるが、前記材質等からなるフイルム
体を貼着することにより形成されていてもよい。この場
合、金属板としては前記理由から耐酸性に優れたステン
レスを使用するのが好ましい。To form the outer layer containing titanium dioxide on the surface of the tunnel interior plate, titanium dioxide or a mixture of titanium dioxide and another material such as an adsorbent, or titanium dioxide is used as a binder such as a fluorine-based synthetic resin. It suffices to attach a mixture or the like dispersed therein by an appropriate method. Examples of the method include a thermal spraying method in which powder of titanium dioxide or a mixture of titanium dioxide is melted and sprayed, and a CVD (chemical Film forming method), a spray method of spraying, a sputter deposition method of depositing by sputter evaporation, a vacuum deposition method, a coating method, etc. are applied, but are not particularly limited, and titanium dioxide contained in at least the outer layer Is exposed on the surface and is activated when the exposed titanium dioxide is irradiated with ultraviolet light. Further, in order to form the outer layer from a mixture in which titanium dioxide or the like is dispersed in a binder such as a fluorine-based synthetic resin, the binder may be a synthetic resin such as a fluorine-based or polyester-based resin, or an inorganic coating such as a ceramic-based coating. It is preferable to use a binder that is not or is not easily attacked by the strong oxidative power due to the activity of titanium dioxide, and when the tunnel interior plate is formed from a metal plate, nitric acid generated by activated titanium dioxide or It is preferable to form a protective layer having acid resistance on the surface so as not to be corroded by sulfuric acid and the like, and to form an outer layer containing titanium dioxide thereon. This protective layer is generally formed by applying polyester-based, fluorine-based, acrylic-based, urethane-based, or other organic paints having extremely strong acid resistance, as well as ceramic-based paints and organic-inorganic hybrid-type paints. However, it may be formed by adhering a film body made of the above material or the like. In this case, it is preferable to use stainless steel having excellent acid resistance as the metal plate for the above reason.
【００１４】トンネル内装板の表面に紫外光を照射する
光源装置としては、太陽光を光フアイバーやチューブ状
発光体等でトンネル内に導光したものであってもよい
し、水銀灯やブラックライト等の人工光源であってもよ
い。すなわち二酸化チタンを活性化させて強い酸化力を
発揮させる光は、上記した如くその波長領域が３００〜
４００ｎｍの紫外光であるが、この紫外光は太陽光に多
く含まれ、また水銀灯やブラックライト等の光にも含ま
れているためである。The light source device for irradiating the surface of the tunnel interior plate with ultraviolet light may be one in which sunlight is guided into the tunnel by an optical fiber or a tube-shaped light emitting body, or a mercury lamp or a black light. It may be an artificial light source. That is, the light that activates titanium dioxide and exerts a strong oxidizing power has a wavelength range of 300 to 300 as described above.
This is because it is ultraviolet light of 400 nm, but this ultraviolet light is contained in a large amount in sunlight and also in light from mercury lamps, black lights, and the like.
【００１５】洗浄装置は、トンネル内装板の表面に捕捉
された汚染物質を洗い流すものであれば特に限定される
ものではなく、例えばトンネル内装板の表面に上部から
洗浄水を流すための給水装置と、洗浄後の廃液を受け、
外部や地中に排出するための排水装置とからなるもので
よい。なお廃液をそのまま外部や地中に排出せずに、廃
液を浄化するための濾過装置等を排水装置に設けておく
のが好ましい。The cleaning device is not particularly limited as long as it cleans the contaminants trapped on the surface of the tunnel interior plate, and for example, a water supply device for flowing the cleaning water from above onto the surface of the tunnel interior plate. , Receiving the waste liquid after cleaning,
It may consist of a drainage device for discharging it to the outside or underground. It is preferable that the drainage device is provided with a filtering device or the like for purifying the waste liquid without directly discharging the waste liquid to the outside or underground.
【００１６】[0016]
【発明の実施の形態】次に、本発明の実施の形態につい
て図面を参照し、具体的に説明する。すなわち図１は本
発明に係るトンネル内空気浄化装置の実施の一形態を示
す斜視図，図２は設置状態を示す断面図であり、１は、
取付孔１１を介してトンネルＴの両側壁に沿って取付け
られたトンネル内装板であって、本形態では図３〜４の
如く、ステンレス鋼からなる金属板１２に、前処理１３
として脱脂処理をおこなって汚れや油分を除いたり、脱
脂処理と共にその表面をサンドブラスト等により粗面化
したり、化成処理によるリン酸塩等のリン酸塩被膜を形
成したり、さらに公知のプライマー層等が形成され、そ
してこの前処理１３の上に上記した有機と無機のハイブ
リッド型塗料等により保護層を兼ねる下塗り層１４が形
成されているものである。そしてかような構成のトンネ
ル内装板１の表面にはさらに二酸化チタンを含む外層１
５が形成されている。Next, an embodiment of the present invention will be specifically described with reference to the drawings. That is, FIG. 1 is a perspective view showing an embodiment of an air purification device in a tunnel according to the present invention, FIG. 2 is a sectional view showing an installed state, and 1 is
A tunnel interior plate that is attached along both side walls of the tunnel T through the attachment holes 11, and in this embodiment, as shown in FIGS.
As a degreasing treatment to remove dirt and oil, roughen the surface with degreasing treatment by sandblasting, form a phosphate coating such as phosphate by chemical conversion treatment, and further publicly known primer layer, etc. And the undercoat layer 14 also functioning as a protective layer is formed on the pretreatment 13 by the above-mentioned organic / inorganic hybrid paint or the like. The surface of the tunnel interior plate 1 having such a structure further includes an outer layer 1 containing titanium dioxide.
5 are formed.
【００１７】２は前記外層１５の二酸化チタンを活性化
させるために、トンネル内装板１の表面に紫外光を照射
するための光源装置である。光源装置２は、トンネルＴ
の両側壁に取付けられたトンネル内装板１の上部にそれ
ぞれ取付けられ、相対向するトンネル内装板１をそれぞ
れ照射するようになされている。すなわち一方の側壁に
取付けられた光源装置２は、相対向する他方の側壁に取
付けられたトンネル内装板１をそれぞれ照射するように
なされている。前記光源装置２としてはブラックライト
が用いられている。Reference numeral 2 denotes a light source device for irradiating the surface of the tunnel interior plate 1 with ultraviolet light in order to activate the titanium dioxide of the outer layer 15. The light source device 2 is a tunnel T
Are respectively attached to the upper portions of the tunnel interior plates 1 attached to both side walls of the above, and the tunnel interior plates 1 facing each other are irradiated. That is, the light source device 2 attached to one side wall irradiates the tunnel interior plate 1 attached to the other side wall facing each other. A black light is used as the light source device 2.
【００１８】３はトンネル内装板１の表面に捕捉された
汚染物質を洗い流すための洗浄装置であり、トンネル内
装板１の表面に上部から洗浄水を流すための給水装置３
１と、洗浄後の廃液を受け、外部や地中に排出するため
の排水装置３２とから構成されている。前記給水装置３
１は、導水パイプに適宜間隔をおいて通水孔３３を設
け、その通水孔３３から洗浄水がトンネル内装板１の表
面の上部から下部に沿ってに所定時間毎に落水するよう
になされている。なお前記通水孔３３から洗浄水を圧力
をかけて噴射させるようにしてもよい。前記洗浄水は水
でもよいし、硝酸や硫酸等を中和するアルカリ系のもの
でもよい。また排水装置３２は、トンネル内装板１の下
部に沿って設置される樋状のものであり、この排水装置
３２は濾過装置（図示せず）を経て、外部の下水装置
（図示せず）に連通されている。Reference numeral 3 is a cleaning device for washing away contaminants trapped on the surface of the tunnel interior plate 1, and a water supply device 3 for flowing cleaning water from above onto the surface of the tunnel interior plate 1.
1 and a drainage device 32 for receiving the waste liquid after cleaning and discharging it to the outside or underground. The water supply device 3
1 is provided with water passage holes 33 at appropriate intervals in the water guide pipe, and the wash water is dropped from the water passage holes 33 along the upper surface to the lower surface of the tunnel interior plate 1 at predetermined intervals. ing. The cleaning water may be jetted by applying pressure from the water passage hole 33. The washing water may be water, or may be an alkaline type that neutralizes nitric acid, sulfuric acid and the like. The drainage device 32 is a gutter-shaped device installed along the lower portion of the tunnel interior plate 1, and the drainage device 32 is passed through a filtering device (not shown) to an external sewer device (not shown). It is in communication.
【００１９】[0019]
【発明の効果】本発明によるトンネル内空気浄化装置に
よれば、トンネル内装板によりトンネル内の視環境の向
上が図れる。また光源装置により照射された紫外光によ
り、トンネル内装板の表面に形成された二酸化チタンを
含む外層の二酸化チタンが活性化されることにより、車
両の排気ガスやタイヤの磨耗粉等により発生した窒素酸
化物や硫黄酸化物等の汚染物質が外層表面に吸着されれ
ば、また空気中を拡散したこれら汚染物質が外層表面に
触れれば、汚染物質は二酸化チタンの活性化による強い
酸化力と水分の存在によって硝酸や硫酸等に酸化されて
トンネル内装板の表面に捕捉され、トンネル内の空気浄
化が効果的に図れる。しかもこの捕捉された汚染物質は
トンネル内装板の表面に蓄積することなく洗浄装置によ
り洗い流され、外層の二酸化チタンの活性化が阻害され
ることがなく、繰り返し汚染物質を捕捉除去することが
でき、また視環境の悪化が防止される。According to the device for purifying air in a tunnel of the present invention, the visual environment in the tunnel can be improved by the tunnel interior plate. In addition, the ultraviolet light emitted from the light source device activates the titanium dioxide in the outer layer containing titanium dioxide formed on the surface of the tunnel interior plate, so that nitrogen generated by vehicle exhaust gas or tire abrasion powder is generated. If contaminants such as oxides and sulfur oxides are adsorbed on the outer layer surface, or if these contaminants that have diffused in the air come into contact with the outer layer surface, the contaminants will have strong oxidizing power and moisture due to the activation of titanium dioxide. Due to the presence of carbon dioxide, it is oxidized to nitric acid, sulfuric acid, etc. and trapped on the surface of the tunnel interior plate, so that the air in the tunnel can be effectively purified. Moreover, the trapped contaminants are washed away by the cleaning device without accumulating on the surface of the tunnel interior plate, the activation of titanium dioxide in the outer layer is not hindered, and the contaminants can be captured and removed repeatedly, Further, deterioration of the visual environment is prevented.
【００２０】また本発明によるトンネル内装板によれ
ば、表面に二酸化チタンを含む外層が形成され、該表面
に紫外光を照射することにより、二酸化チタンが活性化
されるようになされているので、このトンネル内装板を
トンネルの側壁に取付けることにより、トンネル内の視
環境の改善を図ることが出来ると共に、表面に紫外光を
照射して二酸化チタンを活性化させておくことにより、
車両の排気ガスやタイヤの磨耗粉等により発生した窒素
酸化物や硫黄酸化物等からなる汚染物質を、硝酸や硫酸
等に酸化させて効果的に除去することができる。Further, according to the tunnel interior plate of the present invention, the outer layer containing titanium dioxide is formed on the surface, and the titanium dioxide is activated by irradiating the surface with ultraviolet light. By installing this tunnel interior plate on the side wall of the tunnel, it is possible to improve the visual environment inside the tunnel, and by irradiating the surface with ultraviolet light to activate titanium dioxide,
It is possible to effectively remove pollutants such as nitrogen oxides and sulfur oxides generated by vehicle exhaust gas, tire abrasion powder, etc. by oxidizing nitric acid, sulfuric acid, and the like.
【図１】本発明トンネル内空気浄化装置の実施の一形態
を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of an air purification device in a tunnel of the present invention.
【図２】本発明トンネル内空気浄化装置の設置状態を示
す断面図である。FIG. 2 is a cross-sectional view showing an installed state of the air purification device in a tunnel of the present invention.
【図３】本発明トンネル内装板の実施の一形態を示す斜
視図である。FIG. 3 is a perspective view showing an embodiment of a tunnel interior plate of the present invention.
【図４】図３の形態の断面図である。FIG. 4 is a sectional view of the embodiment of FIG.
１ トンネル内装板 １１ 取付孔 １２ 金属板 １３ 前処理 １４ 下塗り層 １５ 外層 ２ 光源装置 ３ 洗浄装置 ３１ 給水装置 ３２ 排水装置 ３３ 通水孔 1 Tunnel Interior Plate 11 Mounting Hole 12 Metal Plate 13 Pretreatment 14 Undercoat Layer 15 Outer Layer 2 Light Source Device 3 Cleaning Device 31 Water Supply Device 32 Drainage Device 33 Water Passage Hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 根岸 信彰 茨城県つくば市小野川16番３ 工業技術院 資源環境技術総合研究所内 (72)発明者 太田 和亘 滋賀県蒲生郡安土町桑実寺38−58 (72)発明者 土井 尊弘 滋賀県蒲生郡竜王町鏡2041 (72)発明者 田近 悟 滋賀県野洲郡野洲町行畑242−１ ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuaki Negishi 16-3 Onogawa, Tsukuba-shi, Ibaraki Institute of Industrial Science and Technology, Research Institute for Natural Resources and Environment (72) Inventor, Kazunori Ota 38-58, Kuwakuji, Azuchi-cho, Gamo-gun, Shiga Prefecture ( 72) Inventor, Takahiro Doi, Mirror, Ryuo-cho, Gamo-gun, Shiga Prefecture 2041 (72) Inventor, Satoru Tajika 242-1 Yukuhata, Yasu-cho, Yasu-gun, Shiga
Claims (3)
れたトンネル内装板と、前記二酸化チタンを活性化させ
て空気中の汚染物質を捕捉させるために、トンネル内装
板の表面に紫外光を照射する光源装置と、トンネル内装
板の表面に捕捉された汚染物質を洗い流すための洗浄装
置とが、トンネルの側壁に取付けられてなることを特徴
とするトンネル内空気浄化装置。1. A tunnel interior plate having an outer layer containing titanium dioxide formed on the surface thereof, and ultraviolet light is irradiated onto the surface of the tunnel interior plate to activate the titanium dioxide and trap contaminants in the air. An air purifying device in a tunnel, characterized in that a light source device for controlling the inside of the tunnel and a cleaning device for washing away contaminants trapped on the surface of the tunnel interior plate are attached to the side wall of the tunnel.
内装板であって、表面に二酸化チタンを含む外層が形成
され、該表面に紫外光を照射することにより、二酸化チ
タンが活性化されるようになされたことを特徴とするト
ンネル内装板。2. A tunnel interior plate attached to a side wall of a tunnel, wherein an outer layer containing titanium dioxide is formed on a surface thereof, and the titanium dioxide is activated by irradiating the surface with ultraviolet light. A tunnel interior plate characterized by that.
ンと共に吸着剤が含まれていることを特徴とする請求項
２記載のトンネル内装板。3. The tunnel interior plate according to claim 2, wherein the outer layer containing titanium dioxide contains an adsorbent together with titanium dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08108996A JP3680085B2 (en) | 1996-04-03 | 1996-04-03 | Tunnel air purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08108996A JP3680085B2 (en) | 1996-04-03 | 1996-04-03 | Tunnel air purification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09271635A true JPH09271635A (en) | 1997-10-21 |
| JP3680085B2 JP3680085B2 (en) | 2005-08-10 |
Family
ID=13736673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08108996A Expired - Lifetime JP3680085B2 (en) | 1996-04-03 | 1996-04-03 | Tunnel air purification device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3680085B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2543928A (en) * | 2015-09-16 | 2017-05-03 | Am Tech Ltd | Enclosed space including a photocatalytic coating and a lighting system |
| KR20200028244A (en) * | 2018-09-06 | 2020-03-16 | 한국생산기술연구원 | 2D Measurement of Concentration and Temperature of Fine Particle Precursor and Active Control Thereof |
-
1996
- 1996-04-03 JP JP08108996A patent/JP3680085B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2543928A (en) * | 2015-09-16 | 2017-05-03 | Am Tech Ltd | Enclosed space including a photocatalytic coating and a lighting system |
| KR20200028244A (en) * | 2018-09-06 | 2020-03-16 | 한국생산기술연구원 | 2D Measurement of Concentration and Temperature of Fine Particle Precursor and Active Control Thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3680085B2 (en) | 2005-08-10 |
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