JPH05237381A - Ventilation apparatus for motor highway tunnel - Google Patents
Ventilation apparatus for motor highway tunnelInfo
- Publication number
- JPH05237381A JPH05237381A JP7836892A JP7836892A JPH05237381A JP H05237381 A JPH05237381 A JP H05237381A JP 7836892 A JP7836892 A JP 7836892A JP 7836892 A JP7836892 A JP 7836892A JP H05237381 A JPH05237381 A JP H05237381A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- harmful gas
- tunnel
- electrode plate
- electrostatic precipitator
- 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.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004071 soot Substances 0.000 claims abstract description 7
- 239000012717 electrostatic precipitator Substances 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 19
- 229910010413 TiO 2 Inorganic materials 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229910017464 nitrogen compound Inorganic materials 0.000 description 3
- 150000002830 nitrogen compounds Chemical class 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- -1 nickel Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Electrostatic Separation (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、自動車道トンネル内
の空気を清浄化する自動車道トンネル用換気設備に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation facility for a roadway tunnel for cleaning air in a roadway tunnel.
【０００２】[0002]
【従来の技術】自動車道トンネル内の空気は、自動車か
ら排出される煤煙、自動車の走行に伴って生じるタイヤ
や道路アスファルトの磨耗粉塵などによって汚染されて
いる。そこで、このような自動車道トンネルの車道空間
に通じる通風路（迂回ずい道や天井通路など）内に電気
集じん機を設置し、トンネルから抽出した汚染空気を電
気集じん機を通過させて清浄化し、再びトンネル内に送
気することによりトンネル内の見通しの改善を図った換
気設備が開発されている（特開昭６３−２４８４６０号
公報参照）。2. Description of the Related Art The air in a tunnel of a motorway is polluted by soot emitted from the motor vehicle, abrasion dust of tires and road asphalt generated as the vehicle travels, and the like. Therefore, an electric dust collector is installed in the ventilation passage (a bypass passage, ceiling passage, etc.) that leads to the roadway space of such a highway tunnel, and the contaminated air extracted from the tunnel is passed through the electric dust collector to clean it. Ventilation equipment has been developed in which the visibility of the inside of the tunnel is improved by turning the air into the tunnel again and then supplying the air (see Japanese Patent Laid-Open No. 63-248460).
【０００３】一方、電気集じん機は空気中のサブミクロ
ンオーダの浮遊微粒子（煤じん）を捕集する機能を有す
るものであるが、自動車からの排気物には煤じんの他、
ＮＯx 、ＳＯx 、ＣＯなど対人かつ対電気設備的に有害
なガスが含まれている。したがって、上述した電気集じ
ん機のみの換気設備では、トンネル内空気中の煤じんは
除去されるが上記有害ガスはそのままになっている。On the other hand, the electric dust collector has a function of collecting airborne particles (soot dust) of submicron order in the air.
It contains harmful gases such as NO x , SO x and CO that are harmful to humans and electrical equipment. Therefore, in the above-described ventilation equipment using only the electric dust collector, the soot dust in the air in the tunnel is removed, but the harmful gas remains.
【０００４】[0004]
【発明が解決しようとする課題】そこで、発明者等は電
気集じん機の後段に有害ガス除去装置を付設し、電気集
じん機により煤じんが除去された汚染空気から更に上記
有害ガスを除去する自動車道トンネル用換気設備を開発
し、これについて先に特許出願した（特開平３−２３３
１００号公報参照）。Therefore, the present inventors have installed a harmful gas removing device in the subsequent stage of the electrostatic precipitator to further remove the harmful gas from the contaminated air from which dust has been removed by the electrostatic precipitator. Developed a ventilation system for a highway tunnel, and applied for a patent for it (Japanese Patent Laid-Open No. 3-233).
(See Japanese Patent Laid-Open No. 100).
【０００５】ここで、上記有害ガス除去装置は二酸化チ
タン（ＴｉＯ2 ）が光照射の下で表面に活性な酸素種を
生成し、ＮＯX やＳＯX などの酸化を促進するとの知見
に基づいて新規に開発されたものであり、ＴｉＯ2 と活
性炭との混合物ないしはこれにＦｅ2 Ｏ3 などの鉄系金
属酸化物を加えた混合物、及びこれに波長が４００ｎｍ
以下の光を照射する光源から構成されている。この発明
は、有害ガス除去機能を備えた上記出願に係る換気設備
に更に工夫を加えたもので、構成をよりコンパクトにし
て設置スペースと設備費の節減を図った自動車道トンネ
ル用換気設備を提供することを目的とするものである。Here, the harmful gas removing device is based on the finding that titanium dioxide (TiO 2 ) produces active oxygen species on the surface under light irradiation and promotes the oxidation of NO x and SO x. This is a newly developed mixture of TiO 2 and activated carbon, or a mixture of an iron-based metal oxide such as Fe 2 O 3 and a wavelength of 400 nm.
It is composed of a light source that emits the following light. The present invention is a ventilation device for a motorway tunnel with a more compact structure, which saves installation space and equipment costs, by further devising the ventilation device according to the above application that has a harmful gas removal function. The purpose is to do.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、この発明は、有害ガス除去装置を構成する二酸化チ
タンと活性炭との混合物ないしはこれに鉄、コバルト、
ニッケルなどの鉄系金属の酸化物、例えばＦｅ2 Ｏ
3 （三二酸化鉄）を加えた混合物を電気集じん機の極板
に塗布するものとする。上記混合物を帯電部の極板に塗
布した場合には、極板間に配置される放電線を複数本と
するとよい。In order to achieve the above object, the present invention provides a mixture of titanium dioxide and activated carbon, which constitutes a harmful gas removing device, or iron, cobalt,
Oxides of iron-based metals such as nickel, eg Fe 2 O
The mixture containing 3 (iron sesquioxide) shall be applied to the electrode plate of the electrostatic precipitator. When the above mixture is applied to the electrode plates of the charging section, it is preferable that a plurality of discharge lines are arranged between the electrode plates.
【０００６】[0006]
【作用】上記出願に係る設備では有害ガス除去装置を電
気集じん機と別構成し、これを電気集じん機の後段に配
置しているが、この発明は有害ガス除去装置を電気集じ
ん機と一体化するものである。すなわち、この発明の設
備においては、電気集じん機の帯電部ないしは集じん部
の極板に有害ガスを保持させる混合物を塗布するものと
する。これにより、換気設備の前後方向の寸法が縮小さ
れて設置スペースが小さくて済み、また部品が共用され
るため設備費が安価になる。In the equipment according to the above application, the harmful gas removing device is configured separately from the electrostatic precipitator and is arranged in the latter stage of the electrostatic precipitator. Is integrated with. That is, in the equipment of the present invention, the mixture for holding harmful gas is applied to the electrode plate of the charging part or the dust collecting part of the electrostatic precipitator. As a result, the size of the ventilation equipment in the front-rear direction can be reduced, the installation space can be reduced, and since the parts are shared, the equipment cost can be reduced.
【０００７】上記混合物は帯電部及び集じん部のいずれ
の極板に塗布してもよく、また両方に塗布することもで
きるが、帯電部はコロナ放電により３３０〜３５０ｎｍ
の波長を主体とする光を発するので、帯電部の接地極板
に塗布すれば光源とするランプを省略できるか、本数を
削減できるので有利である。その際、高圧側の放電線を
複数本として光量を増やせば一層有効である。The above mixture may be applied to either the electrode plate of the charging part or the dust collecting part, or it may be applied to both of them, but the charging part is 330 to 350 nm by corona discharge.
Since the light mainly having the wavelength is emitted, it is advantageous that the lamp serving as the light source can be omitted or the number can be reduced by applying it to the grounding electrode plate of the charging portion. At that time, it is more effective if the number of discharge lines on the high-voltage side is plural and the amount of light is increased.
【０００８】上記混合物を塗布した極板にカーボンが付
着するのは機能的に問題ないが、他の灰分やタール分が
付着して混合物中の活性炭の表面孔が塞がれると、ＮＯ
2 の吸着能力が低下する。したがって、集じん部の極板
に塗布する場合には接地極板（集じん極）よりも高圧極
板の方がよい。また、その場合には光源が別途必要であ
る。It is functionally acceptable for carbon to adhere to the electrode plate coated with the above mixture, but if other ash and tar components adhere to block the surface pores of the activated carbon in the mixture, NO is generated.
Adsorption capacity of 2 decreases. Therefore, when applying to the electrode plate of the dust collecting portion, the high-voltage electrode plate is better than the ground electrode plate (dust collecting electrode). In that case, a light source is additionally required.
【０００９】上記出願明細書にも記載したように、極板
に付着した混合物中のＴｉＯ2 は光照射により活性化
し、表面に生じた酸化種によりＮＯX やＳＯX を酸化し
てこれらをイオン化する。生じた硝酸イオン（Ｎ
Ｏ3 - ) や硫酸イオン（ＳＯ4 2- ）などの酸化生成物は
活性炭に保持される。また、Ｆｅ2 Ｏ3 などの鉄系金属
酸化物は上記イオンと結合して塩を生成し、酸化生成物
を化学的に捕捉してＮＯX やＳＯ2 の除去効果を一層高
める。ＣＯは酸化されてＣＯ2 となるが、これをそのま
ま排出すると問題となる環境下では別途除去手段を設け
るものとする。極板上の混合物に保持された酸化生成物
や窒素化合物などは水洗いにより容易に除去され、この
混合物は乾燥後に再び使用可能である。As described in the above application specification, TiO 2 in the mixture attached to the electrode plate is activated by light irradiation, and NO x and SO x are oxidized by the oxidizing species generated on the surface to ionize them. To do. Generated nitrate ion (N
Oxide products such as O 3 − ) and sulfate ions (SO 4 2− ) are retained on the activated carbon. Further, an iron-based metal oxide such as Fe 2 O 3 combines with the above ions to form a salt, and chemically captures the oxidation product to further enhance the effect of removing NO X and SO 2 . CO is oxidized to CO 2 , but if it is discharged as it is, an additional removing means will be provided in an environment in which it becomes a problem. Oxidation products and nitrogen compounds retained in the mixture on the plate are easily removed by washing with water, and the mixture can be reused after drying.
【００１０】[0010]
【実施例】以下、図に基づいてこの発明の実施例を説明
する。図１はこの発明の実施例の換気設備を備えた自動
車道トンネルの概略斜視図で、部分的に破断して内部を
示してある。図において、１は自動車道トンネル、２は
自動車道トンネル１を迂回するずい道で、ずい道２は自
動車道トンネル１の側壁にあけられた吸気口３及び排気
口４を介して車道空間１ａに通じている。ずい道２の中
央部には電気集じん機５が設置されている。電気集じん
機５は帯電部５ａと集じん部５ｂとからなり、これらは
所定の処理風量を持つユニットが複数基組み合わされて
全体としてトンネル内空気の処理に見合う容量を持つよ
うになっている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view of a motorway tunnel provided with a ventilation system according to an embodiment of the present invention, showing a partially cutaway interior. In the figure, 1 is a highway tunnel, 2 is a shunt road that bypasses the highway tunnel 1, and the shunt road 2 is connected to a roadway space 1a through an intake port 3 and an exhaust port 4 formed in a side wall of the highway tunnel 1. I understand. An electrostatic precipitator 5 is installed in the central portion of the road 2. The electrostatic precipitator 5 comprises a charging unit 5a and a dust collecting unit 5b, and a plurality of units each having a predetermined amount of treated air are combined with each other so that the electrostatic precipitator 5 as a whole has a capacity suitable for treating the air in the tunnel. ..
【００１１】ずい道２は電気集じん５の前後で隔壁６及
び７によりそれぞれ上下に仕切られており、通風路とな
る上部空間８及び９にはそれぞれ送風機１０及び１１が
設置され、また下部空間１２及び１３は電気室及び補機
室となっている。送風機１０により、吸気口３から矢印
で示すようにずい道２内に吸引された車道空間１ａの汚
染空気は、電気集じん機５で煤じん及びＮＯx 、Ｓ
Ｏx 、ＣＯなどのガスが除去され、送風機１１により排
気口４から車道空間１ａに戻される。The sluice 2 is divided into upper and lower parts by partition walls 6 and 7 in front of and behind the electrostatic precipitator 5, respectively. Blowers 10 and 11 are installed in upper spaces 8 and 9 serving as ventilation passages, respectively, and a lower space. 12 and 13 are an electric room and an auxiliary machine room. The polluted air in the roadway space 1a sucked from the intake port 3 into the drainage passage 2 by the blower 10 as shown by an arrow in the electric dust collector 5 collects soot and NO x , S.
Gases such as Ox and CO are removed and returned to the roadway space 1a from the exhaust port 4 by the blower 11.
【００１２】図２は図１のII−II線に沿う拡大断面図、
図３は図２における帯電部５ａ及び集じん部５ｂの斜視
図、図４は図２の平面図である。図３及び図４に示すよ
うに、帯電部５ａは互いに平行配置された多数の平板状
の接地極板１４とそれらの間にそれぞれ前後２本ずつ配
置された放電線１５とからなり、また集じん部５ｂは互
いに平行配置された多数の平板状の接地極板（集じん極
板）１６と高圧極板１７とからなっている。放電線１５
には高電圧発生装置１８から例えば直流１１ＫＶが印加
され、高圧極板１７には例えば直流５.5ＫＶが印加され
る。ここで、帯電部５ａの接地極板１４の両面には、Ｔ
ｉＯ2 、活性炭及びＦｅ2Ｏ3 の混合物の層が形成され
ている。この混合物層は接地極板１５の表面に接着剤を
塗布し、そ上にサブミクロンオーダに粉砕されたＴｉＯ
2粉、活性炭粉及びＦｅ2Ｏ3 粉の混合粉をまぶすように
して付着させたものである。FIG. 2 is an enlarged sectional view taken along line II-II of FIG.
3 is a perspective view of the charging section 5a and the dust collecting section 5b in FIG. 2, and FIG. 4 is a plan view of FIG. As shown in FIGS. 3 and 4, the charging unit 5a is composed of a large number of flat plate-like ground electrode plates 14 arranged in parallel with each other, and two discharge lines 15 arranged in front of and behind the ground electrode plate 14, respectively. The dust portion 5b is composed of a large number of flat plate-shaped grounding electrode plates (dust collecting electrode plates) 16 and a high-voltage electrode plate 17 which are arranged in parallel with each other. Discharge line 15
For example, a direct current of 11 KV is applied to the high voltage generator 18 and a high voltage of 5.5 KV is applied to the high voltage electrode plate 17. Here, on both surfaces of the ground electrode plate 14 of the charging portion 5a, T
A layer of a mixture of iO 2 , activated carbon and Fe 2 O 3 is formed. This mixture layer is obtained by applying an adhesive to the surface of the ground electrode plate 15 and then TiO2 ground to the submicron order.
It is a mixture of two powders, activated carbon powder and Fe 2 O 3 powder, which are sprinkled and adhered.
【００１３】そして、図２に示すように、接地極板１４
の表面に光を照射する管状の光源１９が帯電部５ａの上
下にそれぞれ複数本配列されている。この光源１９は上
記混合物層中のＴｉＯ2 を活性化するためのもので、例
えば波長が３００〜４００ｎｍである近紫外線あるいは
真空紫外線を発するブラックライトランプやハロゲンラ
ンプなどが使用されている。光源１９の始動時には始動
用パルス発生器２０を介して数ＫＶの高電圧が印加され
るが、この電力は電気集じん機５に設備された高電圧発
生装置１８から供給されるので特別の高圧電源は必要な
い。Then, as shown in FIG.
A plurality of tubular light sources 19 that irradiate light on the surface of are arranged above and below the charging unit 5a. The light source 19 is for activating TiO 2 in the mixture layer, and for example, a black light lamp or a halogen lamp that emits near ultraviolet rays or vacuum ultraviolet rays having a wavelength of 300 to 400 nm is used. When the light source 19 is started, a high voltage of several KV is applied through the starting pulse generator 20, but this electric power is supplied from the high voltage generator 18 installed in the electrostatic precipitator 5, so a special high voltage is applied. No power supply required.
【００１４】このような構成において、電気集じん機５
の吸気側ダンパ２１を通して矢印の向きに導かれた汚染
空気は、帯電部５ａを通過する間に煤じん粒子に電荷が
与えられ、同時に有害ガスが接地極板１４上に捕捉され
る。次いで、有害ガスが除去された汚染空気は集じん部
５ｂを通過する際に帯電した煤じん粒子が集じん極板１
６に捕集される。有害ガス及び煤じんが除去された清浄
空気は電気集じん機５の排気側ダンパ２２を通してずい
道２内に排出される。In such a structure, the electrostatic precipitator 5
The polluted air guided in the direction of the arrow through the intake side damper 21 is charged to the dust particles while passing through the charging portion 5a, and at the same time, harmful gas is trapped on the ground electrode plate 14. Then, the polluted air from which the harmful gas has been removed passes through the dust collecting portion 5b, and the dust particles charged with the charged dust particles 1
Captured by 6. The clean air from which harmful gas and dust are removed is discharged into the drainage passage 2 through the exhaust side damper 22 of the electrostatic precipitator 5.
【００１５】帯電部５ａで有害ガスが除去されるのは、
光源１９及びコロナ放電の光によりＴｉＯ2 が活性化し
て、表面に生じる酸素種によりＮＯX やＳＯX を酸化し
てイオン化し、生じた硝酸イオンや硫酸イオンが活性炭
に保持されるためである。同時に、Ｆｅ2 Ｏ3 は上記酸
化生成物とイオン結合して窒素化合物などの塩を生成す
る。また、ＣＯは酸化されてＣＯ2 の形で排出される。The harmful gas is removed by the charging section 5a.
This is because TiO 2 is activated by the light source 19 and light from corona discharge, and NO x and SO x are oxidized and ionized by oxygen species generated on the surface, and the generated nitrate ions and sulfate ions are retained in the activated carbon. At the same time, Fe 2 O 3 ionically bonds with the above-mentioned oxidation product to form a salt such as a nitrogen compound. Further, CO is oxidized and discharged in the form of CO 2 .
【００１６】上に述べたように、コロナ放電の光もＴｉ
Ｏ2 を活性化するのに役立つが、それはコロナ放電の光
はほとんどが近紫外線であるためである。ちなみに、図
５は空気中の針−平板電極におけるコロナ放電スペクト
ルを示すものであるが、これからも分かるように波長は
３４０ｎｍ付近に集中している。したがって、図示実施
例のように有害ガス除去部を帯電部５ａに設ければ光源
１９の本数を減らすことができ、また放電線１５の本数
を増やせば光源２０を省くことも可能となる。As described above, the light of corona discharge is also Ti.
It helps to activate O 2 because most of the light in a corona discharge is near UV. By the way, FIG. 5 shows a corona discharge spectrum of a needle-plate electrode in air, and as can be seen from this, the wavelength is concentrated around 340 nm. Therefore, if the harmful gas removing unit is provided in the charging unit 5a as in the illustrated embodiment, the number of the light sources 19 can be reduced, and if the number of the discharge lines 15 is increased, the light source 20 can be omitted.
【００１７】帯電部５ａに付着した酸化生成物や窒素化
合物は、集じん部５ｂに堆積した煤じんと共に、ノズル
２３（図２）から吹き付けられる高圧水で適時に洗い流
される。２４は洗浄用の清水を貯留した水タンク、２５
は洗浄水をノズル２３に圧送するポンプである。生じた
汚水は排水タンク２６に回収され、図示しない水処理装
置により処理される。なお、図示実施例では混合物を帯
電部５ａの接地極板１４に塗布した例を示したが、集じ
ん部５ｂの高圧極板１８に塗布することも可能である。Oxidation products and nitrogen compounds adhering to the charging section 5a are washed away with the high pressure water sprayed from the nozzle 23 (FIG. 2) in a timely manner together with the dust collected in the dust collecting section 5b. 24 is a water tank storing fresh water for cleaning, 25
Is a pump for pumping the washing water to the nozzle 23. The generated wastewater is collected in the drainage tank 26 and treated by a water treatment device (not shown). In the illustrated embodiment, the mixture is applied to the ground electrode plate 14 of the charging section 5a, but it may be applied to the high voltage electrode plate 18 of the dust collecting section 5b.
【００１８】[0018]
【発明の効果】この発明によれば、有害ガスを捕捉させ
る混合物を電気集じん機の極板に塗布することにより、
有害ガス除去装置を電気集じん機と一体化することがで
き、煤じんと有害ガスの両方を除去できる自動車道トン
ネル用換気設備をきわめてコンパクトかつ安価に構成す
ることができる。特に、有害ガス除去部を電気集じん機
の帯電部に設ければ、コロナ放電の光をＴｉＯ2 の活性
化に有効に活用できる。According to the present invention, by applying a mixture for trapping harmful gas to the electrode plate of the electrostatic precipitator,
Since the harmful gas removing device can be integrated with the electric dust collector, the ventilation equipment for the tunnel of the motorway, which can remove both soot dust and harmful gas, can be constructed extremely compactly and inexpensively. In particular, if the harmful gas removing section is provided in the charging section of the electrostatic precipitator, the light of corona discharge can be effectively utilized for activating TiO 2 .
【図１】この発明の実施例の換気設備を備えた自動車道
トンネルの概略斜視図である。FIG. 1 is a schematic perspective view of a motorway tunnel provided with a ventilation facility according to an embodiment of the present invention.
【図２】図１のII−II線に沿う拡大断面図である。FIG. 2 is an enlarged sectional view taken along the line II-II in FIG.
【図３】図２における帯電部及び集じん部の斜視図であ
る。FIG. 3 is a perspective view of a charging unit and a dust collecting unit in FIG.
【図４】図３の平面図である。FIG. 4 is a plan view of FIG.
【図５】空気中のコロナ放電のスペクトル図である。FIG. 5 is a spectrum diagram of corona discharge in air.
１ 自動車道トンネル ２ ずい道 ５ 電気集じん機 ５ａ 帯電部 ５ｂ 集じん部 １４ 帯電部接地極板 １５ 放電線 １６ 集じん部接地極板 １７ 集じん部高圧極板 １８ 高電圧発生装置 １９ 光源 1 Highway Tunnel 2 Duct 5 Electrostatic Precipitator 5a Charging part 5b Dust collecting part 14 Charging part grounding electrode plate 15 Discharge line 16 Dust collecting part grounding electrode plate 17 Dust collecting part High voltage electrode plate 18 High voltage generator 19 Light source
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｊ 23/74 ３０１ Ａ 8017−4Ｇ 35/02 Ｊ 7821−4Ｇ Ｂ０３Ｃ 3/02 Ｄ 8925−4Ｄ 3/60 8925−4Ｄ (72)発明者 大内 日出夫 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 竹内 浩士 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 怱 那 周 三 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 大井 明彦 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 宮本 昌広 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内 (72)発明者 新貝 和照 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内 (72)発明者 笹本 利治 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内 (72)発明者 野口 幸洋 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 5 Identification number Internal reference number FI Technical display location B01J 23/74 301 A 8017-4G 35/02 J 7821-4G B03C 3/02 D 8925-4D 3 / 60 8925-4D (72) Hideo Ouchi Inoue 16-3 Onogawa, Tsukuba-shi, Ibaraki Institute of Industrial Science and Technology, National Institute of Resources and Environmental Technology (72) Inventor Hiroshi Takeuchi 16-3 Onogawa, Tsukuba, Ibaraki Institute of Industrial Resources Inside the Technical Research Institute (72) Inventor Shuzo Shuna 16-3 Onogawa, Tsukuba-shi, Ibaraki Institute of Industrial Science and Technology (72) Inventor Akihiko Oi 16-3 Onogawa, Tsukuba-shi, Ibaraki Industrial Technology Institute Inside the Technical Research Institute (72) Inventor Masahiro Miyamoto 1-1 Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Fuji Electric Co., Ltd. (72) Inventor Kazu Shingai Teru No. 1 Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Fuji Electric Co., Ltd. (72) Inventor Toshiharu Sasamoto No. 1 Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Fuji Electric Co., Ltd. (72) Inventor Noguchi Yukihiro 1-1, Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Fuji Electric Co., Ltd.
Claims (2)
除去する電気集じん機に、二酸化チタンと活性炭との混
合物ないしはこれに鉄系金属酸化物を加えた混合物、及
びこれに波長が４００ｎｍ以下の光を照射する光源から
なる有害ガス除去装置を付設した自動車道トンネル用換
気設備において、前記混合物を前記電気集じん機の極板
に塗布したことを特徴とする自動車道トンネル用換気設
備。1. A mixture of titanium dioxide and activated carbon or a mixture of iron-based metal oxide and an electric dust collector for removing soot and dust from polluted air in an automobile tunnel, and a wavelength of 400 nm or less. In a ventilation equipment for a tunnel of a motorway, which is provided with a harmful gas removing device consisting of a light source for irradiating the light, said mixture is applied to the electrode plate of the electrostatic precipitator.
おいて、前記極板間に配置される放電線を複数本とした
ことを特徴とする請求項１記載の自動車道トンネル用換
気設備。2. The ventilation facility for a motorway tunnel according to claim 1, wherein, when the mixture is applied to the electrode plate of the charging section, a plurality of discharge lines are arranged between the electrode plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7836892A JPH05237381A (en) | 1992-02-28 | 1992-02-28 | Ventilation apparatus for motor highway tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7836892A JPH05237381A (en) | 1992-02-28 | 1992-02-28 | Ventilation apparatus for motor highway tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05237381A true JPH05237381A (en) | 1993-09-17 |
Family
ID=13660072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7836892A Pending JPH05237381A (en) | 1992-02-28 | 1992-02-28 | Ventilation apparatus for motor highway tunnel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05237381A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07108138A (en) * | 1993-10-12 | 1995-04-25 | Agency Of Ind Science & Technol | Device for removing harmful gas |
| JP2005270802A (en) * | 2004-03-24 | 2005-10-06 | Ohbayashi Corp | Air clarification system, and structure having air clarification system |
| JP2006167645A (en) * | 2004-12-17 | 2006-06-29 | Daikin Ind Ltd | Carbon monoxide decomposition catalyst, carbon monoxide decomposition filter using the same, air cleaning apparatus using carbon monoxide decomposition filter, air conditioner and production method of carbon monoxide decomposition catalyst |
| KR100697305B1 (en) * | 2005-08-16 | 2007-03-23 | 주식회사 리트코 | Air purification system for the polluted air in a main tunnel |
| JP2009039639A (en) * | 2007-08-08 | 2009-02-26 | Panasonic Corp | Electric dust collection system |
| CN107442182A (en) * | 2017-08-16 | 2017-12-08 | 天津市职业大学 | A kind of photoelectrocatalysis gray haze removes coating and preparation method thereof |
-
1992
- 1992-02-28 JP JP7836892A patent/JPH05237381A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07108138A (en) * | 1993-10-12 | 1995-04-25 | Agency Of Ind Science & Technol | Device for removing harmful gas |
| JP2005270802A (en) * | 2004-03-24 | 2005-10-06 | Ohbayashi Corp | Air clarification system, and structure having air clarification system |
| JP2006167645A (en) * | 2004-12-17 | 2006-06-29 | Daikin Ind Ltd | Carbon monoxide decomposition catalyst, carbon monoxide decomposition filter using the same, air cleaning apparatus using carbon monoxide decomposition filter, air conditioner and production method of carbon monoxide decomposition catalyst |
| KR100697305B1 (en) * | 2005-08-16 | 2007-03-23 | 주식회사 리트코 | Air purification system for the polluted air in a main tunnel |
| JP2009039639A (en) * | 2007-08-08 | 2009-02-26 | Panasonic Corp | Electric dust collection system |
| CN107442182A (en) * | 2017-08-16 | 2017-12-08 | 天津市职业大学 | A kind of photoelectrocatalysis gray haze removes coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2564421B2 (en) | Ventilation equipment for road tunnels | |
| KR100317798B1 (en) | Automatic air cleaner | |
| US20030010211A1 (en) | Air purifier | |
| JP4687595B2 (en) | Electric dust collector | |
| KR102018464B1 (en) | Device for reducing pollutant including fine dust generated on road | |
| CN107694755A (en) | Electrostatic precipitation module and conditioner | |
| JPH05237381A (en) | Ventilation apparatus for motor highway tunnel | |
| CN110882843A (en) | Dust cleaning equipment | |
| KR100323113B1 (en) | The air purifier for car | |
| JPH04197418A (en) | Gas purifying apparatus | |
| CN206996842U (en) | Electrostatic precipitation module and conditioner | |
| JP2001046906A (en) | Air cleaning device | |
| CN108434927A (en) | A kind of air cleaning facility | |
| JP3822403B2 (en) | Electric dust collector | |
| CN209776105U (en) | vehicle air purifier convenient to carry | |
| JPH10238799A (en) | Air-conditioner | |
| JP2005066462A (en) | Suspended particles collecting device and suspended particles collecting sound insulation wall | |
| JPH05237335A (en) | Device for removing harmful gas | |
| KR102211713B1 (en) | Complex type electric dust collecting apparatus | |
| CN214403658U (en) | Vehicle-mounted tunnel dust removal device and subway train | |
| KR100503759B1 (en) | Electric precipitator | |
| KR20220121945A (en) | External dust collecting apparatus for vehicle | |
| JP2001129430A (en) | Air cleaning device | |
| KR102430045B1 (en) | Rail moving device including an electric dust collecting module | |
| JP2003299987A (en) | Collection apparatus for suspended particulate matter |