JPH05237338A - Operating and controlling method of device for removing harmful gas - Google Patents
Operating and controlling method of device for removing harmful gasInfo
- Publication number
- JPH05237338A JPH05237338A JP4078369A JP7836992A JPH05237338A JP H05237338 A JPH05237338 A JP H05237338A JP 4078369 A JP4078369 A JP 4078369A JP 7836992 A JP7836992 A JP 7836992A JP H05237338 A JPH05237338 A JP H05237338A
- Authority
- JP
- Japan
- Prior art keywords
- harmful gas
- light
- mixture
- air
- gas
- 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
- 238000000034 method Methods 0.000 title claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 230000001678 irradiating effect Effects 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 57
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 239000002341 toxic gas Substances 0.000 claims 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 27
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 235000010724 Wisteria floribunda Nutrition 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- 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
- 239000012080 ambient air Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- -1 nitrate ions Chemical class 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
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 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
- 239000003054 catalyst Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 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
- 230000003247 decreasing effect Effects 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は空気中の低濃度の有害
ガス（ＮＯX やＳＯX など）を除去する装置に関し、特
にその運転制御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing low-concentration harmful gas (NO x , SO x, etc.) in air, and more particularly to an operation control method thereof.
【０００２】[0002]
【従来の技術】上記有害ガスの除去手段に関しては、自
動車や発電所などの排ガスを処理するための種々の酸化
あるいは還元触媒が開発されている。しかし、これらは
数１００ｐｐｍという高濃度の有害ガスを対象として数
１００〜１０００℃という高温度でその性能を発揮する
ものであり、使用コストが高く、また環境大気中の数ｐ
ｐｍ以下という低濃度の有害ガスの除去には考慮が払わ
れていない。そこで、本発明者らは先に、電気集じん機
と組み合わせて自動車道トンネル内の汚染空気から有害
ガスを除去する装置を開発し、これについて本出願人に
より特許出願した（特開平３−２３３１００号公報参
照）。2. Description of the Related Art With respect to the above-mentioned harmful gas removing means, various oxidation or reduction catalysts for treating exhaust gas from automobiles and power plants have been developed. However, these exhibit their performance at a high temperature of several 100 to 1000 ° C. targeting a harmful gas with a high concentration of several 100 ppm, are high in cost of use, and are several p in the ambient atmosphere.
No consideration has been given to the removal of harmful gases at low concentrations below pm. Therefore, the present inventors previously developed a device for removing harmful gas from contaminated air in a tunnel of a motorway in combination with an electric dust collector, and filed a patent application for this by the applicant (Japanese Patent Laid-Open No. 3-233100). (See the official gazette).
【０００３】[0003]
【発明が解決しようとする課題】上記出願に係る有害ガ
スの除去装置は、活性炭とＴｉＯ2 （二酸化チタン）と
の混合物ないしはこれにＦｅ2 Ｏ3 （三二酸化鉄）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４
００ｎｍ以下の光を照射するブラックライトなどの光源
からなるものであるが、この有害ガス除去装置で環境大
気中の低濃度の有害ガスを除去するためには送風機によ
り汚染空気を装置内に導入し、光を照射した上記混合物
を通過させる必要がある。The harmful gas removing apparatus according to the above application is a mixture of activated carbon and TiO 2 (titanium dioxide) or an iron-based metal oxide such as Fe 2 O 3 (iron sesquioxide). And a mixture with a wavelength of 4
It consists of a light source such as a black light that irradiates light of 00 nm or less, but in order to remove low concentration harmful gas in the ambient air with this harmful gas removal device, polluted air is introduced into the device by a blower. , It is necessary to pass the above mixture irradiated with light.
【０００４】このような有害ガス除去装置を例えば断面
積５６ｍ2 のトンネル内に設置し、入口有害ガスの９５
％を除去する場合の消費電力を試算すると、光源として
は６０Ｗ／本のブラックライトが約１３０００本必要で
合計７８０ＫＷ、また送風機は２０〜５０ＫＷとなり、
全体としてかなり大きな電力となる。特に、光照射のた
めの消費電力が大きい。そこで、この発明は、上記有害
ガス除去装置の運転を効率化して消費電力の節減を図る
ようにした運転制御方法を提供することを目的とするも
のである。Such a harmful gas removing device is installed in, for example, a tunnel having a cross-sectional area of 56 m 2 , and 95
When calculating the power consumption when removing%, a total of 780 KW is required for the light source, approximately 13000 black lights of 60 W / line, and a blower of 20 to 50 KW.
As a whole, the electric power will be quite large. Especially, the power consumption for light irradiation is large. Therefore, it is an object of the present invention to provide an operation control method in which the operation of the harmful gas removing device is made efficient to reduce power consumption.
【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、活性炭とＴｉＯ2 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 Ｏ3 をを加えた混合物、及びこれに波
長が４００ｎｍ以下の光を照射する光源からなり、前記
混合物を通過する空気から有害ガスを除去する有害ガス
除去装置において、有害ガス除去装置の空気の入口及び
出口に有害ガスの濃度を成分別に測定するガスセンサを
設置し、これらのガスセンサの測定結果に基づいて光源
の光量及び前記有害ガス除去装置に空気を導入する送風
機の風量を変化させるものとする。In order to achieve the above object, the present invention provides a mixture of activated carbon and TiO 2 or an oxide of an iron-based metal such as iron, cobalt or nickel, such as Fe 2 O 3. In a harmful gas removing device for removing harmful gas from the air passing through the mixture, the inlet and outlet of air of the harmful gas removing device. A gas sensor for measuring the concentration of harmful gas for each component is installed, and the light quantity of the light source and the air quantity of the blower for introducing air into the harmful gas removing device are changed based on the measurement results of these gas sensors.
【０００６】[0006]
【作用】ＮＯX （窒素酸化物）やＳＯX （硫黄酸化物）
が、活性炭とＴｉＯ2 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で除去される
のは、ＴｉＯ2 が光照射により活性化して表面に生じる
活性な酸素種によりＮＯ（一酸化窒素）やＮＯ2 （二酸
化窒素）、ＳＯ2 （亜硫酸ガス）などを酸化してこれら
をイオン化し、生じた硝酸イオン（ＮＯ3 - ）や硫酸イ
オン（ＳＯ4 2- ）などの酸化生成物を活性炭が保持する
ためである。その際、Ｆｅ2 Ｏ3 などの鉄系金属酸化物
は更に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ＮＯやＳＯ2 の除去効果を一層高め
る。また、ＣＯ（一酸化炭素）は酸化されてＣＯ2 （炭
酸ガス）となる。[Function] NO x (nitrogen oxide) and SO x (sulfur oxide)
However, a mixture of activated carbon and TiO 2 or Fe 2
O 3 being removed in an iron-based metal oxide mixture was added, such as, NO by an active oxygen species generated on the surface TiO 2 is activated by light irradiation (nitrogen monoxide) and NO 2 (nitrogen dioxide) , SO 2 (sulfurous acid gas) and the like are oxidized to ionize them, and the activated carbon retains the generated oxidation products such as nitrate ions (NO 3 − ) and sulfate ions (SO 4 2− ). At that time, iron-based metal oxides such as Fe 2 O 3 further combine with the above ions to form a salt, and the oxidation product is chemically trapped to further enhance the effect of removing NO and SO 2 . Further, CO (carbon monoxide) is oxidized to CO 2 (carbon dioxide gas).
【０００７】ここで、ＮＯやＳＯ2 は活性炭単独では捕
捉できず、上に述べたように活性炭にＴｉＯ2 を混合
し、これに光を照射することにより捕捉可能になるもの
であるが、ＮＯ2 は更に活性炭に物理的に吸着されるこ
とによっても直接除去される。すなわち、ＮＯやＳＯ2
は光照射されたＴｉＯ2 の存在下でなければ除去されな
いのに対し、ＮＯ2 は活性炭単独でも除去され得るもの
である。Here, NO and SO 2 cannot be captured by activated carbon alone, but as described above, it can be captured by mixing activated carbon with TiO 2 and irradiating it with light. 2 is also directly removed by being physically adsorbed on activated carbon. That is, NO and SO 2
Is removed only in the presence of light-irradiated TiO 2 , whereas NO 2 can be removed by activated carbon alone.
【０００８】一方、汚染空気からの有害ガス除去率は、
ＴｉＯ2 に照射される光量が多いほど高く、また汚染空
気の風量が少ないほど高くなる。そこで、有害ガス除去
装置の空気の入口及び出口で空気中の有害ガスの濃度を
成分別に測定し、その測定結果に基づいて光量や送風量
を変化させれることにより、有害ガス除去装置の運転を
効率化して消費電力を低減し、かつ有害ガスの除去率を
高めるものとする。例えば、入口空気中の有害ガスの成
分比率としてＮＯ2 が多くＮＯやＳＯ2 が少ないとき
は、光源の一部ないしは全部の通電を停止して電力を節
減し、ＮＯ2 は活性炭に直接吸着させるようにする。On the other hand, the removal rate of harmful gas from polluted air is
The higher the amount of light applied to TiO 2 , the higher the level, and the lower the amount of contaminated air, the higher the level. Therefore, the concentration of harmful gas in the air is measured for each component at the air inlet and outlet of the harmful gas removing device, and the amount of light and the amount of air blow can be changed based on the measurement result to operate the harmful gas removing device. The efficiency shall be reduced to reduce power consumption and the removal rate of harmful gas shall be increased. For example, when NO 2 is large and NO and SO 2 are small as a component ratio of the harmful gas in the inlet air, power supply to some or all of the light source is stopped to save electric power, and NO 2 is directly adsorbed on the activated carbon. To do so.
【０００９】[0009]
【実施例】図１はこの発明の実施例を示す有害ガス除去
装置の基本ユニットの縦断面図、図２はその横断面図で
ある。図において、基本ユニット１は縦横１ｍのダクト
２が区画壁３（図２）により縦横２００ｍｍの有害ガス
除去室４に仕切られた構造になっており、区画壁３の表
面にはＴｉＯ2 、活性炭及びＦｅ2 Ｏ3 の混合物の層５
が形成されている。この混合物層５は区画壁３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ＴｉＯ2 粉、活性炭粉及びＦｅ2 Ｏ3 粉の混合粉をま
ぶすようにして付着させたものである。1 is a longitudinal sectional view of a basic unit of a harmful gas removing apparatus showing an embodiment of the present invention, and FIG. 2 is a transverse sectional view thereof. In the figure, the basic unit 1 has a structure in which a vertical and horizontal 1 m duct 2 is partitioned by a partition wall 3 (FIG. 2) into a vertical and horizontal 200 mm harmful gas removal chamber 4, and the surface of the partition wall 3 is TiO 2 and activated carbon. Layer 5 of a mixture of Fe and O 2 O 3
Are formed. This mixture layer 5 was formed by applying an adhesive agent on the surface of the partition wall 3 and sprinkling it with a mixed powder of TiO 2 powder, activated carbon powder and Fe 2 O 3 powder pulverized to a submicron order. It is a thing.
【００１０】そして、各室４内には筒状の光源６が１本
ずつ設置されている。光源６は上記混合物層５中のＴｉ
Ｏ2 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
例えば６０Ｗ／本の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６は電源７から給電さ
れるが、この光源６は制御部８からの指令により個別に
オン、オフ制御されるようになっている。A cylindrical light source 6 is installed in each chamber 4. The light source 6 is Ti in the mixture layer 5 described above.
It is for activating O 2 and has a wavelength of, for example, 300 to
For example, a black light lamp or a halogen lamp, which emits near-ultraviolet rays or vacuum ultraviolet rays of 400 nm, for example, 60 W / line, is used. The light source 6 is supplied with power from a power source 7, and the light source 6 is individually controlled to be turned on and off in response to a command from the control unit 8.
【００１１】９はダクト２内に有害ガスを含む汚染空気
を導入する送風機で電源１０から給電されるが、制御部
８からの指令により回転数が制御されるようになってい
る。１１及び１２は有害ガス除去室４の前後に設置され
たガスセンサで、吸気口１１ａ及び１２ａからそれぞれ
吸い込んだ汚染空気中の有害ガスの濃度をＮＯ、Ｎ
Ｏ2 、ＳＯ2 及びＣＯの成分別に測定し、その結果を制
御部８に出力できるものである。制御部８はガスセンサ
１１，１２からのデータに基づいて光源６及び送風機９
を上に述べたように制御する。A blower 9 introduces polluted air containing harmful gas into the duct 2 and is supplied with electric power from a power source 10. The number of revolutions is controlled by a command from a control unit 8. Reference numerals 11 and 12 denote gas sensors installed in front of and behind the harmful gas removing chamber 4, which indicate the concentration of harmful gas in the contaminated air sucked from the intake ports 11a and 12a, respectively.
It is possible to measure each of O 2 , SO 2 and CO components and output the result to the control unit 8. The control unit 8 controls the light source 6 and the blower 9 based on the data from the gas sensors 11 and 12.
Control as described above.
【００１２】上記基本ユニット１は処理風量に応じて上
下左右に複数基積み重ねられ、また有害ガスの目標除去
率に応じて前後に複数段接続される。そして、送風機１
０の運転により矢印で示すように図の左端から各基本ユ
ニット１に導入された汚染空気は、有害ガス除去室４で
混合物層５により有害ガスが捕捉され、浄化空気となっ
て右端から排出される。A plurality of the basic units 1 are stacked vertically and horizontally depending on the amount of air to be treated, and a plurality of stages are connected front and back according to the target removal rate of harmful gas. And blower 1
The polluted air introduced into each basic unit 1 from the left end of the figure by the operation of 0 is captured by the mixture layer 5 in the harmful gas removing chamber 4 as purified air and discharged from the right end as purified air. It
【００１３】有害ガス除去室４では、光源６の光により
混合物層５中の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する。生
じた硝酸イオンや硫酸イオンは活性炭に保持される。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。In the harmful gas removing chamber 4, TiO 2 in the mixture layer 5 is activated by the light of the light source 6, and NO x and SO x are oxidized and ionized by oxygen species generated on the surface. The generated nitrate ions and sulfate ions are retained on 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 .
【００１４】ここで、ＮＯ2 は光照射がなくても活性炭
に吸着されるので、入口センサ１１からのデータにより
ＮＯやＳＯ2 の入口濃度が低いことが判明した場合に
は、制御部８は光源６の通電本数を減らすか通電を全く
遮断する。これにより、光照射のための電力が節減され
る。また、ＮＯやＳＯ2 の入口濃度が高い場合は光源６
の通電本数を増やして光量を増加させる。そして、汚染
空気の処理結果を出口センサ１２でチェックし、排気中
のガス濃度に応じて光量を増減させる。Here, since NO 2 is adsorbed on the activated carbon without light irradiation, when it is found from the data from the inlet sensor 11 that the inlet concentration of NO or SO 2 is low, the control unit 8 Either reduce the number of energized light sources 6 or cut off the energization at all. As a result, the power for light irradiation is saved. If the inlet concentration of NO or SO 2 is high, the light source 6
The number of energized wires is increased to increase the amount of light. Then, the processing result of the contaminated air is checked by the outlet sensor 12, and the light amount is increased or decreased according to the gas concentration in the exhaust gas.
【００１５】有害ガスの除去率は送風機９の風量、つま
りダクト２内の風速に左右され、風速が大きければ除去
率は低くなり、風速が小さければ除去率は高くなる。そ
の場合、所要のＮＯやＳＯ2 の除去率を得るのに光量を
増加させる方法と、光量を抑え同時に風速も小さくする
方法とがあり、後者の方が電力消費上は当然有利である
が、処理風量が減ると環境大気の浄化が不十分となるの
で有害ガスの入口濃度との関係で光量と風量とのバラン
スを適切に決定するものとする。The removal rate of harmful gas depends on the air volume of the blower 9, that is, the wind speed in the duct 2. The higher the wind speed, the lower the removal rate, and the lower the wind speed, the higher the removal rate. In that case, there are a method of increasing the light quantity to obtain a required removal rate of NO and SO 2 and a method of suppressing the light quantity and simultaneously reducing the wind speed. The latter is naturally advantageous in terms of power consumption, If the amount of treated air decreases, the purification of the ambient air becomes insufficient, so the balance between the amount of light and the amount of air should be appropriately determined in relation to the concentration of harmful gas at the inlet.
【００１６】いずれにしても、ガスセンサ１１及び１２
により有害ガス除去室４の入口及び出口における有害ガ
スの濃度を成分別に測定し、その結果により光源６の通
電本数（光量）及び送風機９の回転数（風量）を制御す
ることにより、電力消費及び有害ガス除去率の両面で最
適効率の運転を実現することができる。In any case, the gas sensors 11 and 12
By measuring the concentration of the harmful gas at the inlet and the outlet of the harmful gas removing chamber 4 by each component, and controlling the number of energized light sources 6 (light quantity) and the rotation speed of the blower 9 (air quantity) by the results, power consumption and Optimal efficiency operation can be realized in terms of both harmful gas removal rates.
【００１７】[0017]
【発明の効果】この発明は光照射の下で活性炭とＴｉＯ
2 との混合物ないしはこれに鉄系金属酸化物を加えた混
合物により、汚染空気中からＮＯX やＳＯX を高率で捕
捉できる一方、ＮＯ2 は活性炭単独によっても吸着可能
であることに着目したものであって、有害ガス除去装置
の空気の入口及び出口に有害ガスの濃度を成分別に測定
するガスセンサを設置し、これらのガスセンサの測定結
果に基づいて光量及び風量を変化させるように制御する
ことにより、光照射に伴う電力消費を最小限に節減し、
かつ高い有害ガス除去率を達成することができる。Industrial Applicability This invention applies activated carbon and TiO under light irradiation.
Focusing on the fact that NO x and SO x can be captured from polluted air at a high rate by a mixture with 2 or a mixture containing iron-based metal oxides, NO 2 can also be adsorbed by activated carbon alone. A gas sensor that measures the concentration of harmful gas by component is installed at the air inlet and outlet of the harmful gas removing device, and control is performed to change the light amount and air flow based on the measurement results of these gas sensors. Reduces power consumption due to light irradiation to a minimum,
And a high harmful gas removal rate can be achieved.
【図１】この発明の実施例を示す有害ガス除去装置の基
本ユニットの縦断面図である。FIG. 1 is a vertical sectional view of a basic unit of a harmful gas removing apparatus showing an embodiment of the present invention.
【図２】図１の横断面図である。2 is a cross-sectional view of FIG.
１ 基本ユニット ２ ダクト ３ 区画壁 ４ 有害ガス除去室 ５ 混合物層 ６ 光源 ７ 電源 ８ 制御部 ９ 送風機 １０ 電源 １１ ガスセンサ １２ ガスセンサ 1 Basic Unit 2 Duct 3 Partition Wall 4 Hazardous Gas Removal Room 5 Mixture Layer 6 Light Source 7 Power Supply 8 Control Section 9 Blower 10 Power Supply 11 Gas Sensor 12 Gas Sensor
───────────────────────────────────────────────────── 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 Ｂ０１Ｄ 53/36 １０１ Ａ 9042−4Ｄ １０２ Ｃ 9042−4Ｄ Ｆ 9042−4Ｄ Ｂ０１Ｊ 21/18 Ａ 8017−4Ｇ 23/74 ３０１ Ａ 8017−4Ｇ 35/02 Ｊ 7821−4Ｇ (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 the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical indication location B01D 53/36 101 A 9042-4D 102 C 9042-4D F 9042-4D B01J 21/18 A 8017- 4G 23/74 301 A 8017-4G 35/02 J 7821-4G (72) Inventor Hideo Ouchi 16-3 Onogawa, Tsukuba City, Ibaraki Prefectural Institute of Natural Science and Technology (72) Inventor Hiroshi Takeuchi Ibaraki 16-3 Onogawa, Tsukuba City Institute of Advanced Industrial Science and Technology (72) Inventor Shuzo Fana Ibaraki Prefecture 16-3 Onogawa, Onokawa Institute of Industrial Science and Technology (72) Inventor Akihiko Ooi Ibaraki Prefecture 16-3 Onogawa, Tsukuba City, Institute of Industrial Science, National Institute of Advanced Industrial Science and Technology (72) Inventor Masahiro Miyamoto 1 Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa No. 1 Fuji Electric Co., Ltd. (72) Inventor Kazuteru Shingai 1-1 Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Fuji Electric Co., Ltd. (72) No. 1 Risa Sasamoto, Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa No. 1 in Fuji Electric Co., Ltd. (72) Inventor Yukihiro Noguchi 1-1, Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Fuji Electric Co., Ltd.
Claims (1)
に鉄系金属酸化物を加えた混合物、及びこれに波長が４
００ｎｍ以下の光を照射する光源からなり、前記混合物
を通過する空気から有害ガスを除去する有害ガス除去装
置において、 有害ガス除去装置の空気の入口及び出口に有害ガスの濃
度を成分別に測定するガスセンサを設置し、これらのガ
スセンサの測定結果に基づいて光源の光量及び前記有害
ガス除去装置に空気を導入する送風機の風量を変化させ
ることを特徴とする有害ガス除去装置の運転制御方法。1. A mixture of activated carbon and TiO 2 , or a mixture of iron-based metal oxides added thereto, and a mixture having a wavelength of 4 nm.
A noxious gas removing device for removing noxious gas from the air passing through the mixture, which comprises a light source for irradiating light of 00 nm or less, and a gas sensor for measuring the concentration of noxious gas at each of the inlet and outlet of the noxious gas removing device. Is installed, and the light quantity of the light source and the air quantity of the blower that introduces air into the harmful gas removing apparatus are changed based on the measurement results of these gas sensors, and the operation control method of the harmful gas removing apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4078369A JPH05237338A (en) | 1992-02-28 | 1992-02-28 | Operating and controlling method of device for removing harmful gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4078369A JPH05237338A (en) | 1992-02-28 | 1992-02-28 | Operating and controlling method of device for removing harmful gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05237338A true JPH05237338A (en) | 1993-09-17 |
Family
ID=13660099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4078369A Pending JPH05237338A (en) | 1992-02-28 | 1992-02-28 | Operating and controlling method of device for removing harmful gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05237338A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000262606A (en) * | 1999-03-19 | 2000-09-26 | Takamasa Iwasaru | Air purifying device |
| JP2009112482A (en) * | 2007-11-06 | 2009-05-28 | Meidensha Corp | Photocatalyst type air cleaner |
| JP2019017855A (en) * | 2017-07-20 | 2019-02-07 | 大阪ライティング株式会社 | Deodorization device |
-
1992
- 1992-02-28 JP JP4078369A patent/JPH05237338A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000262606A (en) * | 1999-03-19 | 2000-09-26 | Takamasa Iwasaru | Air purifying device |
| JP2009112482A (en) * | 2007-11-06 | 2009-05-28 | Meidensha Corp | Photocatalyst type air cleaner |
| JP2019017855A (en) * | 2017-07-20 | 2019-02-07 | 大阪ライティング株式会社 | Deodorization device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5676913A (en) | Mobile apparatus for the purification of polluted air, and process therefor | |
| EP2711643A1 (en) | High-efficiency air purification device and method | |
| JP2013099546A (en) | Air purification apparatus | |
| JP2006255529A (en) | Photocatalyst filter, photocatalyst filter unit, clean room, air purifier, manufacturing apparatus and air purifying method | |
| HUT77994A (en) | Method and mobile apparatus for the purification of polluted air | |
| JPH03233100A (en) | Ventilating device for motorway tunnel | |
| JP4457603B2 (en) | Gas purification device | |
| JP4751264B2 (en) | Ventilation gas purification device and purification method thereof | |
| JPH05237338A (en) | Operating and controlling method of device for removing harmful gas | |
| JP3000056B2 (en) | Air purifier | |
| US20200368384A1 (en) | An air treatment system, and a method of using said air treatment system | |
| JPH08238441A (en) | Air cleaning device | |
| JPH08253025A (en) | Air cleaning and deodorizing device for automobile | |
| KR20010097924A (en) | Air cleaner by using catalyst | |
| JP2000279492A (en) | Gas cracking structure and gas cracking device and air conditioner using the same | |
| JPH0564721A (en) | Method and apparatus for treating air containing nitrogen oxide in low concentration | |
| EP0764044A1 (en) | Apparatus for the purification of polluted air and related purification process | |
| JP2010029865A (en) | Gas purifying apparatus | |
| JP2005525854A (en) | Air cleaning method and equipment | |
| KR100628936B1 (en) | Device and method for treating hybrid hazardous gas | |
| JP2002126451A (en) | Device for removing nitrogen oxides in air | |
| JP2003251147A (en) | Atmosphere cleaning treatment device by diffusion scrubber method | |
| JP4201465B2 (en) | Nitrogen oxide processing equipment | |
| JP2002126449A (en) | Air cleaning method and device | |
| JP2002166131A (en) | Apparatus for treating nitrogen oxides |