JPH08303200A - Air purification device in tunnel - Google Patents
Air purification device in tunnelInfo
- Publication number
- JPH08303200A JPH08303200A JP11070995A JP11070995A JPH08303200A JP H08303200 A JPH08303200 A JP H08303200A JP 11070995 A JP11070995 A JP 11070995A JP 11070995 A JP11070995 A JP 11070995A JP H08303200 A JPH08303200 A JP H08303200A
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- air
- removing means
- casing
- intake
- 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
- 238000004887 air purification Methods 0.000 title claims abstract description 11
- 239000000809 air pollutant Substances 0.000 claims abstract description 16
- 231100001243 air pollutant Toxicity 0.000 claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 239000012717 electrostatic precipitator Substances 0.000 claims description 17
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 15
- 230000005684 electric field Effects 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 29
- 239000007789 gas Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 9
- 239000000428 dust Substances 0.000 description 8
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 4
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 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
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
(57)【要約】
【目的】 簡単な構成でトンネル内の空気を浄化するト
ンネル内空気浄化装置を提供する。
【構成】 内燃機関を有する車両が通過するトンネル内
の空気を浄化するトンネル内空気浄化装置において、ト
ンネル１の天井に長手方向に沿って取り付けられた筒状
の筐体１１と、この筐体１１内に設けられ筐体１１の長
手方向に送風するファン１２と、筐体１１の吸気側又は
吸排気側に設けられ大気汚染物質を除去する除去手段１
３、１７とを備えたことを特徴としている。
(57) [Abstract] [Purpose] To provide an in-tunnel air purification device that purifies air in a tunnel with a simple configuration. In a tunnel air purifying apparatus for purifying air in a tunnel through which a vehicle having an internal combustion engine passes, a cylindrical casing 11 is attached to a ceiling of the tunnel 1 along a longitudinal direction, and the casing 11 A fan 12 that is provided inside and that blows air in the longitudinal direction of the housing 11, and a removal unit 1 that is provided on the intake side or the exhaust side of the housing 11 and that removes air pollutants
It is characterized by having 3, 17 and.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内燃機関を有する車両
が通過するトンネル内の空気を浄化するトンネル内空気
浄化装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for purifying air in a tunnel for purifying air in a tunnel through which a vehicle having an internal combustion engine passes.
【０００２】[0002]
【従来の技術】内燃機関を有する車両、例えば乗用車が
移動する際には排気管から排気ガスが排出される。排気
ガスには粒子状大気汚染物質としての粉塵や、ガス状大
気汚染物質としての一酸化炭素ＣＯ、二酸化炭素Ｃ
Ｏ2 、硫黄酸化物ＳＯX 、窒素酸化物ＮＯX 等が含まれ
ている。１台の乗用車から排気される排気ガスは低濃度
であり微々たるものであるが、多数の乗用車から排気さ
れるとその絶対量は非常に大きなものとなってしまう。Exhaust gas is exhausted from an exhaust pipe when a vehicle having an internal combustion engine, such as a passenger car, moves. The exhaust gas contains dust as particulate air pollutants, carbon monoxide CO, carbon dioxide C as gaseous air pollutants.
It contains O 2 , sulfur oxide SO X , nitrogen oxide NO X and the like. Exhaust gas exhausted from one passenger car has a low concentration and is insignificant, but when exhausted from a large number of passenger cars, its absolute amount becomes very large.
【０００３】乗用車がトンネル内を通過する場合トンネ
ルの長さが短い場合にはあまり問題はないが、その長さ
が長い場合にはトンネル内が排気ガスで充満してついに
は酸欠状態となり危険である。When a passenger car passes through a tunnel, there is no problem when the length of the tunnel is short, but when the length of the tunnel is long, the inside of the tunnel is filled with exhaust gas and finally becomes deficient in oxygen. Is.
【０００４】このため、図７に示すようにトンネル１内
には乗用車２からの排気ガスを強制的にトンネル外に排
出すると共にトンネル１内に新鮮な空気を導入するため
のトンネルファン３を設けることが法律で義務付けられ
ている。しかし、年々交通量が増加しているためトンネ
ルファン３だけでは不十分になりつつある。そのためト
ンネル１から地上へ通じる縦穴（煙突）４を設けること
が検討されている。尚、図７はトンネル内空気浄化装置
の従来例である。For this reason, as shown in FIG. 7, a tunnel fan 3 is provided in the tunnel 1 for forcibly discharging the exhaust gas from the passenger car 2 to the outside of the tunnel and introducing fresh air into the tunnel 1. Is required by law. However, since the traffic volume is increasing year by year, the tunnel fan 3 alone is becoming insufficient. Therefore, it is considered to provide a vertical hole (chimney) 4 that leads from the tunnel 1 to the ground. FIG. 7 shows a conventional example of a device for purifying air in a tunnel.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、トンネ
ル１に煙突４を設けるためには新たに土木工事を行わな
ければならず工事が大規模となるだけでなく作業上の危
険が伴い、その上トンネル１が河川や池等の下にある場
合には建設が困難である。However, in order to install the chimney 4 in the tunnel 1, civil engineering work must be newly performed, which is not only a large-scale work but also involves a danger of work. Construction is difficult when 1 is below a river or pond.
【０００６】そこで、本発明の目的は、上記課題を解決
し、簡単な構成でトンネル内の空気を浄化するトンネル
内空気浄化装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a tunnel air purifying device for purifying the air in the tunnel with a simple structure.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に本発明は、内燃機関を有する車両が通過するトンネル
内の空気を浄化するトンネル内空気浄化装置において、
トンネルの天井に長手方向に沿って取り付けられた筒状
の筐体と、この筐体内に設けられ筐体の長手方向に送風
するファンと、筐体の吸気側又は吸排気側に設けられ大
気汚染物質を除去する除去手段とを備えたものである。In order to achieve the above object, the present invention provides a tunnel air purifying apparatus for purifying air in a tunnel through which a vehicle having an internal combustion engine passes,
A cylindrical casing attached to the ceiling of the tunnel along the longitudinal direction, a fan provided in the casing for blowing air in the longitudinal direction of the casing, and an air pollution provided on the intake side or the intake side of the casing. And a removing means for removing the substance.
【０００８】上記構成に加え本発明は、筐体の吸排気側
に設けられた除去手段のうち吸気側の除去手段が電界ト
ラップ又は静電集塵器のいずれかであり、排気側の除去
手段がオゾン発生器であってもよい。In addition to the above structure, the present invention is directed to the removal means provided on the intake and exhaust sides of the housing, wherein the removal means on the intake side is either an electric field trap or an electrostatic precipitator, and the removal means on the exhaust side. May be an ozone generator.
【０００９】上記構成に加え本発明は、筐体の吸排気側
に設けられた除去手段のうち吸気側の除去手段が電界ト
ラップ又は静電集塵器のいずれかであり、排気側の除去
手段がプラズマリアクタであってもよい。In addition to the above structure, the present invention is directed to the removal means provided on the intake and exhaust sides of the housing, wherein the removal means on the intake side is either an electric field trap or an electrostatic precipitator, and the removal means on the exhaust side. May be a plasma reactor.
【００１０】上記構成に加え本発明は、筐体の吸排気側
に設けられた除去手段のうち吸気側の除去手段が電界ト
ラップ又は静電集塵器のいずれかであり、排気側の除去
手段が触媒であってもよい。In addition to the above structure, the present invention is directed to the removal means provided on the intake and exhaust sides of the housing, wherein the removal means on the intake side is either an electric field trap or an electrostatic precipitator, and the removal means on the exhaust side. May be a catalyst.
【００１１】上記構成に加え本発明は、筐体の吸気側又
は吸排気側に設けられた除去手段が電界トラップであっ
てもよい。In addition to the above structure, in the present invention, the removing means provided on the intake side or the intake side of the housing may be an electric field trap.
【００１２】[0012]
【作用】上記構成によれば、ファンが回転することによ
り筐体内にトンネル内の排気ガスが吸入され、排気ガス
中の大気汚染物質が除去手段で除去され、浄化された空
気がトンネル内に供給される。According to the above construction, the exhaust gas in the tunnel is sucked into the housing by the rotation of the fan, the air pollutants in the exhaust gas are removed by the removing means, and the purified air is supplied into the tunnel. To be done.
【００１３】筐体の吸気側に設けられた除去手段で排気
ガス中の粒子状大気汚染物質が除去されると共に水分が
除去される。粒子状大気汚染物質が除去された排気ガス
中のガス状大気汚染物質は排気側の除去手段で除去さ
れ、浄化された空気がトンネル内に供給される。The removing means provided on the intake side of the housing removes particulate air pollutants in the exhaust gas and also removes water. The gaseous air pollutants in the exhaust gas from which the particulate air pollutants have been removed are removed by the exhaust side removal means, and purified air is supplied into the tunnel.
【００１４】筐体の吸気側又は吸排気側除去手段が電界
トラップの場合には排気ガス中の粒子状の汚染物質とガ
ス状汚染物質との両方が同時に除去される。When the intake side or intake / exhaust side removing means of the casing is an electric field trap, both particulate contaminants and gaseous contaminants in the exhaust gas are removed at the same time.
【００１５】[0015]
【実施例】以下、本発明の一実施例を添付図面に基づい
て詳述する。An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
【００１６】図１は本発明のトンネル内空気浄化装置の
一実施例をトンネル内に設置した状態を示す図であり、
図２は本発明のトンネル内空気浄化装置の一実施例の概
念図である。FIG. 1 is a view showing a state in which an embodiment of an air purifying device in a tunnel of the present invention is installed in a tunnel.
FIG. 2 is a conceptual diagram of an embodiment of the air purification device in a tunnel of the present invention.
【００１７】図２に示すように、トンネル１の天井には
トンネルの長手方向に沿ってトンネル内空気浄化装置
（以下「浄化装置」という。）１０が取り付けられてい
る。浄化装置１０はトンネル１内の排気ガスを吸収して
浄化した後矢印ａ方向に浄化した空気を排出する。送風
方向が乗用車の進行方向（矢印ｂ）と逆方向になってい
るのは、乗用車２から排出される排気ガスの噴出方向と
一致させることにより、トンネル１内の大気汚染物質の
除去効率を向上させるためである。尚、高速道路のよう
に乗用車が高速で通過する場合にはトンネルの入口から
出口に向かって風化発生するのでこの場合は送風方向を
逆にしてもよい。又、気象条件に応じて送風方向を適宜
設定してもよい。As shown in FIG. 2, an in-tunnel air purification device (hereinafter referred to as “purification device”) 10 is attached to the ceiling of the tunnel 1 along the longitudinal direction of the tunnel. The purifier 10 absorbs the exhaust gas in the tunnel 1 and purifies it, and then discharges the purified air in the direction of arrow a. The blowing direction is opposite to the traveling direction of the passenger car (arrow b) because the exhaust gas exhausted from the passenger car 2 is made to coincide with the jet direction of the exhaust gas to improve the efficiency of removing air pollutants in the tunnel 1. This is to allow it. When a passenger car passes at a high speed like an expressway, weathering occurs from the entrance to the exit of the tunnel. In this case, the blowing direction may be reversed. Moreover, you may set the ventilation direction suitably according to a weather condition.
【００１８】図１において、浄化装置１０は、トンネル
１の天井に長手方向に沿って取り付けられる筒状の筐体
１１を有している。この筐体１１内には筐体１１の長手
方向に送風するファン１２が設けられている。In FIG. 1, the purifying device 10 has a cylindrical casing 11 attached to the ceiling of the tunnel 1 along the longitudinal direction. A fan 12 that blows air in the longitudinal direction of the housing 11 is provided inside the housing 11.
【００１９】筐体１１の吸気側には粒子状大気汚染物質
としての粉塵を除去する除去手段としての静電集塵器１
３が設けられている。この静電集塵器１３は、空気流路
内に配置されると共に接地された筒状のアース電極１４
と、アース電極１４の中心に配置され直流高電圧ＤＣＨ
Ｖが印加される直線状の高電圧電極１５とで構成されて
いる。尚、高電圧電極１５には集塵効率を高めるため星
型の導体１６が設けられていてもよい。静電集塵器１３
の数は図では７つであるが限定されるものではない。ま
た、静電集塵器１３はアース電極１４及び高電圧電極１
５の極性は正負いずれであってもよい。On the intake side of the housing 11, an electrostatic precipitator 1 as a removing means for removing dust as a particulate air pollutant.
3 is provided. The electrostatic precipitator 13 is a cylindrical ground electrode 14 that is arranged in the air flow path and grounded.
And a DC high voltage DCH placed at the center of the earth electrode 14.
It is composed of a linear high voltage electrode 15 to which V is applied. The high voltage electrode 15 may be provided with a star-shaped conductor 16 in order to enhance the dust collection efficiency. Electrostatic precipitator 13
In the figure, the number is 7 but is not limited. In addition, the electrostatic precipitator 13 includes the ground electrode 14 and the high voltage electrode 1.
The polarity of 5 may be either positive or negative.
【００２０】浄化装置１０の排気側にはガス状大気汚染
物質としての硫黄酸化物ＳＯX や窒素酸化物ＮＯX を除
去する除去手段としてのオゾン発生器１７が設けられて
いる。オゾン発生器１７は、空気流路内に配置された筒
状の誘電体１８と、誘電体１８の外周に密着して設けら
れ接地されたアース電極１９と、誘電体１８の内壁に長
手方向に設けられ交流高電圧ＡＣＨＶが印加される複数
の高電圧電極２０とで構成されている。尚、オゾン発生
器１７の数は図では７つであるが限定されるものではな
い。On the exhaust side of the purifying device 10, an ozone generator 17 is provided as a removing means for removing sulfur oxide SO x and nitrogen oxide NO x as gaseous atmospheric pollutants. The ozone generator 17 includes a cylindrical dielectric 18 arranged in the air flow path, a ground electrode 19 that is closely attached to the outer circumference of the dielectric 18 and is grounded, and a longitudinal direction on the inner wall of the dielectric 18. It is composed of a plurality of high voltage electrodes 20 which are provided and to which the AC high voltage ACHV is applied. The number of ozone generators 17 is seven in the figure, but is not limited.
【００２１】次に実施例の作用を述べる。Next, the operation of the embodiment will be described.
【００２２】浄化装置１０のファン１２が回転すること
により筐体１１内にトンネル１内の排気ガスが吸入され
る。吸入された排気ガスは、静電集塵器１３により粉塵
が除去されると共に水分が除去される。粉塵と水分が除
去された排気ガスはファン１２を通過した後オゾン発生
器１７により硫黄酸化物ＳＯX や窒素酸化物ＮＯX が分
解されることにより浄化される。浄化装置１０から浄化
された空気がトンネル１内に供給される。このオゾン発
生器により発生するオゾンは、筐体１１外に出た場合、
オゾン濃度は０．５ｐｐｍ以下にしなければならないの
で、０．５ｐｐｍ以上で筐体１１外に出される恐れがあ
る場合はオゾンキラー（図示せず）を設ける必要があ
る。The exhaust gas in the tunnel 1 is drawn into the housing 11 by rotating the fan 12 of the purifying device 10. The sucked exhaust gas is removed of dust and water by the electrostatic precipitator 13. Exhaust gas dust and moisture are removed is purified by sulfur oxide SO X, nitrogen oxide NO X by the ozone generator 17 after passing through the fan 12 is degraded. The purified air is supplied from the purification device 10 into the tunnel 1. When the ozone generated by this ozone generator goes out of the housing 11,
Since the ozone concentration has to be 0.5 ppm or less, an ozone killer (not shown) needs to be provided when there is a possibility that the ozone concentration is 0.5 ppm or more and the ozone is discharged to the outside of the housing 11.
【００２３】この浄化装置１０は、従来用いられている
トンネルファン３の吸排気側に除去手段を設けた構造を
有しているので、静電集塵器１３とオゾン発生器１７と
をそれぞれユニット化して取り付けるようにすることに
より、煙突工事を行う必要がなくなる。Since this purifying device 10 has a structure in which the removing means is provided on the intake and exhaust sides of the conventionally used tunnel fan 3, the electrostatic precipitator 13 and the ozone generator 17 are each a unit. It becomes unnecessary to do the chimney construction by making it and attaching it.
【００２４】上述した実施例では排気側の除去手段とし
てオゾン発生器を用いたがこの代わりにプラズマリアク
タを用いてもよい。In the above-described embodiment, the ozone generator is used as the exhaust side removing means, but a plasma reactor may be used instead.
【００２５】プラズマリアクタは、上述した静電集塵器
と同様な構造を有しているが電源に直流高電圧パルス電
源を用いてコロナ放電を発生させ、得られたコロナ放電
により硫黄酸化物ＳＯX や窒素酸化物ＮＯX を減少させ
る点で異なっている。The plasma reactor has a structure similar to that of the electrostatic precipitator described above, but a corona discharge is generated by using a DC high voltage pulse power source as a power source, and the sulfur oxide SO is generated by the obtained corona discharge. The difference is that X and nitrogen oxide NO X are reduced.
【００２６】図３はプラズマリアクタに用いられる直流
高電圧パルス電源の一例である。交流ＡＣをトランス２
１で昇圧した後ダイオード２２で直流に整流し、抵抗器
２３及びコンデンサ２４からなる平滑回路で平滑し、モ
ータ２５で回転する火花ギャップ２６とコイル２７とを
用いて短パルスを発生するようになっている。コイル２
７の出力側にはカップリングコンデンサ２８を介して可
変直流電源２９が接続されており、出力端子３０、３１
間に短パルスと直流とが加算された電圧が発生するよう
になっている。尚、抵抗器３２はパルス電圧発生用、抵
抗器３３は保護用の抵抗器である。FIG. 3 shows an example of a DC high voltage pulse power source used in a plasma reactor. AC AC transformer 2
After being boosted by 1, it is rectified into a direct current by a diode 22, smoothed by a smoothing circuit composed of a resistor 23 and a capacitor 24, and a short pulse is generated by using a spark gap 26 and a coil 27 rotated by a motor 25. ing. Coil 2
A variable DC power supply 29 is connected to the output side of 7 through a coupling capacitor 28, and output terminals 30, 31
In the meantime, a voltage generated by adding a short pulse and a direct current is generated. The resistor 32 is a pulse voltage generator, and the resistor 33 is a protective resistor.
【００２７】プラズマリアクタを用いて一酸化窒素ＮＯ
を酸化させると一般に図５に示すように特性が得られ
る。Nitric oxide NO using plasma reactor
When oxidized, the characteristics are generally obtained as shown in FIG.
【００２８】図５はプラズマリアクタによる窒素酸化物
ＮＯX の濃度とコロナ放電極性依存性とを示す図であ
る。同図において横軸はパルス電圧、横軸は窒素酸化物
濃度をそれぞれ示す。白丸「○」及び黒丸「●」は正コ
ロナ、白四角「□」及び黒四角「■」は負コロナをそれ
ぞれ示す。プラズマリアクタによるＮＯX の除去率は７
０〜７５％である。FIG. 5 is a diagram showing the concentration of nitrogen oxide NO x and the corona discharge polarity dependence by the plasma reactor. In the figure, the horizontal axis represents the pulse voltage and the horizontal axis represents the nitrogen oxide concentration. A white circle "○" and a black circle "●" indicate a positive corona, and a white square "□" and a black square "■" indicate a negative corona, respectively. The removal rate of NO x by the plasma reactor is 7
0 to 75%.
【００２９】排気側の除去手段としては触媒を用いても
よく、脱硝触媒としては酸化銅系固体吸収剤、ゼオライ
ト系吸収剤が挙げられる。A catalyst may be used as the removing means on the exhaust side, and examples of the denitration catalyst include a copper oxide type solid absorbent and a zeolite type absorbent.
【００３０】図４は本発明のトンネル内空気浄化装置の
他の実施例の概念図である。FIG. 4 is a conceptual diagram of another embodiment of the air purifying device in the tunnel of the present invention.
【００３１】図２に示した浄化装置との相違点は排気側
の除去手段として触媒を用いた点である。同図において
酸化銅系固体吸収剤を多孔質樹脂で固めハニカム状の貫
通孔３４を形成した触媒３５が排気側に設けられてい
る。The difference from the purifying apparatus shown in FIG. 2 is that a catalyst is used as the exhaust side removing means. In the figure, a catalyst 35 having a honeycomb-shaped through hole 34 formed by solidifying a copper oxide solid absorbent with a porous resin is provided on the exhaust side.
【００３２】このような浄化装置においても静電集塵器
１３で粉塵と水分が除去され、触媒３５で窒素酸化物Ｎ
ＯX が除去されてトンネル内の空気が浄化される。Even in such a purifying apparatus, the dust and water are removed by the electrostatic precipitator 13, and the nitrogen oxide N is removed by the catalyst 35.
O X is removed and the air in the tunnel is purified.
【００３３】図２に示した実施例では吸気側に静電集塵
器を用いたが、静電集塵器の代わりに電界トラップを用
いてもよい。Although the electrostatic precipitator is used on the intake side in the embodiment shown in FIG. 2, an electric field trap may be used instead of the electrostatic precipitator.
【００３４】図６はトンネル内空気浄化装置の他の実施
例の概念図である。FIG. 6 is a conceptual diagram of another embodiment of the air purifying device in the tunnel.
【００３５】同図に示すように電界トラップ３６は、構
造的には図２に示した静電集塵器１３と類似している
が、空気流路内に配置されると共に接地された筒状のア
ース電極３７と、アース電極３７の中心に配置され直流
高電圧ＤＣＨＶが印加されるポリ塩化ビニル被覆電線３
８とで構成されている。電界トラップ３６は一つで粉塵
と窒素酸化物ＮＯX とを同時に除去できる。このため電
界トラップをユニット化し、これを従来のトンネルファ
ンの吸気側だけに取り付ければよく、構成がさらに簡単
になり効率的に排気ガスを浄化することができる。As shown in the figure, the electric field trap 36 is structurally similar to the electrostatic precipitator 13 shown in FIG. 2, but is arranged in the air flow path and grounded. Ground electrode 37 and a polyvinyl chloride-coated electric wire 3 which is arranged at the center of the ground electrode 37 and to which a high DC voltage DCHV is applied
8 and. Field trap 36 can be simultaneously removed and dust and nitrogen oxide NO X in one. Therefore, the electric field trap may be unitized and attached only to the intake side of the conventional tunnel fan, and the configuration is further simplified and the exhaust gas can be efficiently purified.
【００３６】以上において、ファンが回転することによ
り筐体内にトンネル内の排気ガスが吸入され、粒子状大
気汚染物質除去手段で排気ガス中の粒子状大気汚染物質
が除去されると共に水分が除去される。粒子状大気汚染
物質が除去された排気ガス中のガス状大気汚染物質がガ
ス状大気汚染物質除去手段で除去されることにより清浄
な空気が筐体からトンネル内に供給される。In the above, the exhaust gas in the tunnel is sucked into the housing by the rotation of the fan, and the particulate air pollutant removing means removes the particulate air pollutant in the exhaust gas and removes the water content. It The gaseous air pollutant in the exhaust gas from which the particulate air pollutant has been removed is removed by the gaseous air pollutant removing means, so that clean air is supplied from the casing into the tunnel.
【００３７】尚、上述した実施例では車両として乗用車
の場合で説明したが、これに限定されるものではなく、
トラックやダンプカー等の大型車、ディーゼルカー等の
鉄道車両であってもよい。In the above-mentioned embodiment, the case where the vehicle is a passenger car has been described, but the invention is not limited to this.
It may be a large vehicle such as a truck or a dump truck, or a railway vehicle such as a diesel car.
【００３８】[0038]
【発明の効果】以上要するに本発明によれば、次のよう
な優れた効果を発揮する。In summary, according to the present invention, the following excellent effects are exhibited.
【００３９】トンネル内空気浄化装置のファンが回転す
ることにより筐体内にトンネル内の排気ガスが吸入さ
れ、排気ガス中の大気汚染物質が除去手段で除去され、
浄化された空気がトンネル内に供給されるので、簡単な
構成でトンネル内の空気が浄化される。By rotating the fan of the air purifying device in the tunnel, the exhaust gas in the tunnel is sucked into the housing, and the air pollutants in the exhaust gas are removed by the removing means.
Since the purified air is supplied into the tunnel, the air in the tunnel is purified with a simple configuration.
【図１】本発明のトンネル内空気浄化装置をトンネル内
に設置した状態を示す図である。FIG. 1 is a diagram showing a state in which a tunnel air purification device of the present invention is installed in a tunnel.
【図２】本発明のトンネル内空気浄化装置の一実施例の
概念図である。FIG. 2 is a conceptual diagram of an embodiment of an air purification device in a tunnel of the present invention.
【図３】プラズマリアクタに用いられる直流高電圧パル
ス電源の一例である。FIG. 3 is an example of a DC high voltage pulse power supply used in a plasma reactor.
【図４】本発明のトンネル内空気浄化装置の他の実施例
の概念図である。FIG. 4 is a conceptual diagram of another embodiment of the air purification device in a tunnel of the present invention.
【図５】プラズマリアクタによる窒素酸化物ＮＯX の濃
度とコロナ放電極性依存性とを示す図である。FIG. 5 is a diagram showing the concentration of nitrogen oxide NO x and the corona discharge polarity dependence by a plasma reactor.
【図６】トンネル内空気浄化装置の他の実施例の概念図
である。FIG. 6 is a conceptual diagram of another embodiment of the air purification device in a tunnel.
【図７】トンネル内空気浄化装置の従来例である。FIG. 7 is a conventional example of a device for purifying air in a tunnel.
１１ 筐体 １２ ファン １３ 除去手段（静電集塵器） １７ 除去手段（オゾン発生器） 11 Housing 12 Fan 13 Removal Means (Electrostatic Dust Collector) 17 Removal Means (Ozone Generator)
Claims (5)
ル内の空気を浄化するトンネル内空気浄化装置におい
て、上記トンネルの天井に長手方向に沿って取り付けら
れた筒状の筐体と、この筐体内に設けられ筐体の長手方
向に送風するファンと、上記筐体の吸気側又は吸排気側
に設けられ大気汚染物質を除去する除去手段とを備えた
ことを特徴とするトンネル内空気浄化装置。1. An in-tunnel air purifying apparatus for purifying air in a tunnel through which a vehicle having an internal combustion engine passes, and a cylindrical casing attached to a ceiling of the tunnel along a longitudinal direction, and the inside of the casing. An air purifying apparatus in a tunnel, comprising: a fan installed in the housing for blowing air in the longitudinal direction of the housing; and a removal unit provided on the intake side or the intake side of the housing for removing air pollutants.
段のうち吸気側の除去手段が電界トラップ又は静電集塵
器のいずれかであり、排気側の除去手段がオゾン発生器
である請求項１記載のトンネル内空気浄化装置。2. The removing means on the intake side of the removing means provided on the intake and exhaust sides of the casing is either an electric field trap or an electrostatic precipitator, and the removing means on the exhaust side is an ozone generator. The air purification device in a tunnel according to claim 1.
段のうち吸気側の除去手段が電界トラップ又は静電集塵
器のいずれかであり、排気側の除去手段がプラズマリア
クタである請求項１記載のトンネル内空気浄化装置。3. The removing means on the intake side of the removing means provided on the intake and exhaust sides of the casing is either an electric field trap or an electrostatic precipitator, and the removing means on the exhaust side is a plasma reactor. The air purification device in a tunnel according to claim 1.
段のうち吸気側の除去手段が電界トラップ又は静電集塵
器のいずれかであり、排気側の除去手段が触媒である請
求項１記載のトンネル内空気浄化装置。4. The removing means on the intake side of the removing means provided on the intake and exhaust sides of the casing is either an electric field trap or an electrostatic precipitator, and the removing means on the exhaust side is a catalyst. Item 1. The tunnel air purification device according to item 1.
れた除去手段が電界トラップである請求項１記載のトン
ネル内空気浄化装置。5. The air purifying apparatus in a tunnel according to claim 1, wherein the removing means provided on the intake side or the intake side of the casing is an electric field trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11070995A JPH08303200A (en) | 1995-05-09 | 1995-05-09 | Air purification device in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11070995A JPH08303200A (en) | 1995-05-09 | 1995-05-09 | Air purification device in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08303200A true JPH08303200A (en) | 1996-11-19 |
Family
ID=14542479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11070995A Pending JPH08303200A (en) | 1995-05-09 | 1995-05-09 | Air purification device in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08303200A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101480215B1 (en) * | 2013-02-07 | 2015-01-07 | 아주대학교산학협력단 | Air cleaner apparatus for construction like tunnel |
| US8992843B2 (en) | 2013-01-07 | 2015-03-31 | Umm Al-Qura University | Catalytic converter for confined areas |
-
1995
- 1995-05-09 JP JP11070995A patent/JPH08303200A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8992843B2 (en) | 2013-01-07 | 2015-03-31 | Umm Al-Qura University | Catalytic converter for confined areas |
| KR101480215B1 (en) * | 2013-02-07 | 2015-01-07 | 아주대학교산학협력단 | Air cleaner apparatus for construction like tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7198762B1 (en) | Device for treating an internal combustion engine exhaust gases | |
| JPH06509266A (en) | Exhaust treatment systems and methods | |
| Yamamoto et al. | Performance evaluation of nonthermal plasma reactors for NO oxidation in diesel engine exhaust gas treatment | |
| CN101530828A (en) | Method for purifying air pollutants of roads and tunnels | |
| HUT77994A (en) | Method and mobile apparatus for the purification of polluted air | |
| US7559976B2 (en) | Multi-stage collector for multi-pollutant control | |
| CN101219338B (en) | Automobile tail gas purifier of low-temperature plasma body | |
| KR20010040293A (en) | Filter for separating nitrogen oxides and particles from a gas flow | |
| JPH08303200A (en) | Air purification device in tunnel | |
| JP2004204739A (en) | Exhaust gas purification system and exhaust gas purification method | |
| US6908596B2 (en) | Exhaust gas processing system | |
| CN220047629U (en) | Purifying device for removing harmful substances in highway tunnel | |
| JPH09276647A (en) | NO oxidation device and highway tunnel exhaust gas denitration system | |
| JPH05332128A (en) | Exhaust emission control device | |
| JPS63268911A (en) | Exhaust purifier for engine | |
| JP2007000733A (en) | Gas processing method and processing apparatus | |
| US20050199408A1 (en) | Arcing electron stream apparatus and method | |
| CN215692834U (en) | Gaseous pollutant purifying equipment for high-altitude highway tunnel | |
| KR0166413B1 (en) | Process for exhaust gas purification using a plasma cyclone and system for performing the process | |
| JPH07229418A (en) | Exhaust gas purification device | |
| KR100345582B1 (en) | Apparatus for activating the intake air magnetically | |
| KR100339102B1 (en) | Apparatus for purifying waste-gas for diesel engine | |
| JP3253380B2 (en) | Exhaust gas purification device for internal combustion engine | |
| CN114570200A (en) | High-energy electron beam smoke whitening and dedusting integrated treatment process | |
| JP2005066462A (en) | Suspended particles collecting device and suspended particles collecting sound insulation wall |