JPH0857032A - Sterilizing/deodorizing/purifying method for air and device thereof - Google Patents

Sterilizing/deodorizing/purifying method for air and device thereof

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Publication number
JPH0857032A
JPH0857032A JP6222738A JP22273894A JPH0857032A JP H0857032 A JPH0857032 A JP H0857032A JP 6222738 A JP6222738 A JP 6222738A JP 22273894 A JP22273894 A JP 22273894A JP H0857032 A JPH0857032 A JP H0857032A
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JP
Japan
Prior art keywords
oxygen
wavelength
air
ground state
type semiconductor
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
Application number
JP6222738A
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Japanese (ja)
Other versions
JP3493062B2 (en
Inventor
Tadashi Mochiki
正 持麾
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Individual
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Individual
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Priority to JP22273894A priority Critical patent/JP3493062B2/en
Publication of JPH0857032A publication Critical patent/JPH0857032A/en
Application granted granted Critical
Publication of JP3493062B2 publication Critical patent/JP3493062B2/en
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Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE: To instantaneously sterilize, deodorize, and purify air. CONSTITUTION: Near ultraviolet rays with the wavelength of 180-360nm are radiated to an n-type semiconductor metal oxide in the ground state oxygen atmosphere, the active oxygen species is generated by the surface excitation of the n-type semiconductor metal oxide, the ground state oxygen is excited by optical pumping, the single state oxygen is generated, the visible light with the wavelength of 600-650nm and near infrared rays with the wavelength of 1200-1300nm are radiated in sequence, and air is sterilized, deodorized, and purified by the transition energy from the single state oxygen of the active oxygen species to the ground state oxygen due to the induced emission of electromagnetic waves.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、環境保全のための空気
の浄化や殺菌、或いは病院内における院内感染の防止、
シックビルシンドロームの予防、空調内での殺菌を行う
ため、吸入した空気の殺菌・脱臭・浄化方法およびその
装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to air purification and sterilization for environmental protection, or prevention of nosocomial infections in hospitals.
The present invention relates to a method for sterilizing, deodorizing, and purifying inhaled air and a device for preventing sick building syndrome and sterilizing in an air conditioner.

【0002】[0002]

【従来の技術】従来の空気の殺菌を行う方法としては、
波長185nmの紫外線を照射して発生させたオゾンを
空気中に拡散させる方法と、波長254nmの殺菌灯に
より紫外線を照射して殺菌を行う方法の何れか、或いは
これらを併用した方法が用いられてきた。
2. Description of the Related Art As a conventional method for sterilizing air,
Either the method of irradiating the ozone generated by irradiating the ultraviolet ray of 185 nm wavelength to the air or the method of irradiating the ultraviolet ray by the sterilizing lamp of the wavelength 254 nm to sterilize, or the method using both of them has been used. It was

【0003】[0003]

【発明が解決しようとする課題】しかし、波長185n
mの紫外線によってオゾンを発生させる方法は、オゾン
が充分に分解されないうちに、残留オゾンとして大気中
に放出するのを余儀なくされ、人体に大きな影響を及ぼ
すばかりでなく、取扱も困難な問題点があった。
However, the wavelength is 185n.
In the method of generating ozone by ultraviolet rays of m, the ozone is forced to be released into the atmosphere as residual ozone before the ozone is sufficiently decomposed, which not only has a great influence on the human body but is also difficult to handle. there were.

【0004】又、殺菌灯による紫外線の照射の場合に
は、波長254nmの紫外線が主体であり、この光が当
たらない所の殺菌は望めず、活性酸素の生成がないため
励起された一重項酸素はそのまま拡散して、殺菌が瞬間
的に、且つ強力に行われる効果を期待することはできな
い問題点があった。
In the case of irradiating ultraviolet rays from a germicidal lamp, ultraviolet rays having a wavelength of 254 nm are mainly used, and it is not possible to expect sterilization in a place where this light is not irradiated, and there is no generation of active oxygen, so excited singlet oxygen. However, there is a problem in that it is not possible to expect the effect of sterilization being instantaneously and powerfully diffused as it is.

【0005】本発明は従来の空気の殺菌における前述の
問題点を解決せんとするもので、その目的とするところ
は、空気の酸素を紫外線照射下にあるN型半導体金属酸
化物に接触させ、表面に生成する活性酸素種を波長の長
い可視光線と近赤外線を照射することによって基底状態
酸素に遷移させ、その遷移エネルギーで瞬発的な殺菌と
脱臭と浄化が行える空気の殺菌・脱臭・浄化方法および
その装置を提供することにある。
The present invention is intended to solve the above-mentioned problems in the conventional sterilization of air, and its purpose is to bring oxygen of air into contact with an N-type semiconductor metal oxide under UV irradiation, A method of sterilizing, deodorizing and purifying air that allows active oxygen species generated on the surface to transit to ground state oxygen by irradiating long-wavelength visible light and near-infrared light, and instantaneous energy sterilization, deodorization and purification with the transition energy And to provide the device.

【0006】[0006]

【課題を解決する手段】本発明に係わる空気の殺菌・脱
臭・浄化方法は前記した目的を達成せんとするもので、
基底状態酸素雰囲気中にあるN型半導体金属酸化物に波
長180〜360nmの近紫外線、若しくは近紫外線レ
ーザ光を照射して、該N型半導体金属酸化物の表面励起
によって生ずる活性酸素種と光ポンピングにより基底状
態酸素を励起させ、一重項酸素を生成した後、波長60
0〜650nmの可視光線、若しくは可視光線レーザお
よび波長1200〜1300nmの近赤外線、若しくは
近赤外レーザ線を各々単独、同時、或いは順次照射し
て、一重項酸素を電磁波の誘導放出で基底状態酸素に遷
移させ、その遷移エネルギーを利用して殺菌・脱臭・浄
化を行うことを特徴とする。
The air sterilizing, deodorizing and purifying method according to the present invention is intended to achieve the above-mentioned object.
The N-type semiconductor metal oxide in the ground state oxygen atmosphere is irradiated with near-ultraviolet or near-ultraviolet laser light having a wavelength of 180 to 360 nm, and active oxygen species generated by surface excitation of the N-type semiconductor metal oxide and optical pumping. The ground state oxygen is excited by to generate singlet oxygen by
A single-state oxygen is stimulated to emit a single-state oxygen by stimulated emission of electromagnetic waves to irradiate a visible light of 0 to 650 nm, a visible light laser, and a near-infrared ray of a wavelength of 1200 to 1300 nm or a near-infrared laser ray, respectively, simultaneously or sequentially, and then ground state oxygen. It is characterized by performing the sterilization, deodorization and purification using the transition energy.

【0007】又、本発明に係わる空気の殺菌・脱臭・浄
化装置は、通過する空気流に接するダクトおよびケーシ
ング内面、若しくはフィンにN型半導体金属酸化物を塗
布し、このN型半導体金属酸化物に接触しながら移行す
る基底状態酸素に波長180〜360nmの近紫外線、
若しくは近紫外線レーザ光を照射し、該N型半導体金属
酸化物の表面励起によって生成する活性酸素種と光ポン
ピングにより一重項酸素を生成する紫外線照射手段を設
け、この空気流における前記紫外線照射手段の後方に波
長600〜650nmの可視光線、波長1200〜13
00nmの近赤外線、若しくはレーザ光を各々単独、同
時或いは順次に照射し、一重項酸素を電磁波の放出で基
底酸素への遷移を行う光線照射手段を具備させたことを
特徴とする。
Further, the air sterilization / deodorization / purification device according to the present invention applies the N-type semiconductor metal oxide to the inner surface of the duct and the casing which are in contact with the passing air flow, or the fins, and the N-type semiconductor metal oxide is applied. Near-ultraviolet rays with a wavelength of 180 to 360 nm to the ground state oxygen that moves while contacting with
Alternatively, a near-ultraviolet laser beam is irradiated to provide ultraviolet irradiation means for generating singlet oxygen by active pumping and active oxygen species generated by surface excitation of the N-type semiconductor metal oxide. Visible light of wavelength 600 to 650 nm behind, wavelengths of 1200 to 13
A near-infrared ray having a wavelength of 00 nm or a laser beam is individually, simultaneously or sequentially irradiated, and a light beam irradiation means for transitioning singlet oxygen to ground oxygen by emitting an electromagnetic wave is provided.

【0008】[0008]

【作用】本発明の空気の殺菌・脱臭・浄化方法およびそ
の装置においては、通過する空気流中の酸素は、波長1
80〜360nmの紫外線を照射されると基底状態酸素
原子を生成する。 O2 +hν(180〜200nm)→2O(3p) hν :紫外線 O(3p):基底状態酸素原子 そして、この基底状態酸素原子に空気中の酸素分子が反
応してオゾンを生成する。 O(3p)+O2 →O33 :オゾン
In the air sterilizing / deodorizing / purifying method and apparatus of the present invention, the oxygen in the passing air stream has a wavelength of 1
When it is irradiated with ultraviolet rays of 80 to 360 nm, ground state oxygen atoms are generated. O 2 + hν (180 to 200 nm) → 2O (3p) hν: ultraviolet ray O (3p): ground state oxygen atom Then, oxygen molecules in the air react with the ground state oxygen atom to generate ozone. O (3p) + O 2 → O 3 O 3 : Ozone

【0009】このO3 に波長250〜300nmの紫外
線を照射すると、O3 は分解して一重項の酸素原子と一
重項の酸素分子とが生成される。 O3 +hν(250nm〜300nm)→ 1D+ 1Δg1 D :一重項酸素原子1 Δg :一重項酸素分子
When this O 3 is irradiated with ultraviolet rays having a wavelength of 250 to 300 nm, O 3 is decomposed to generate singlet oxygen atoms and singlet oxygen molecules. O 3 + hν (250 nm to 300 nm) → 1 D + 1 Δg 1 D: Singlet oxygen atom 1 Δg: Singlet oxygen molecule

【0010】一方、N型半導体金属酸化物に波長180
〜360nmの紫外線を照射すると金属表面に電子を放
出し、その電子は基底状態酸素に電子授与され、酸素は
励起されて活性酸素アニオンに遷移する。 hν(180〜360nm)+M→e- M ;N型半導体金属酸化物 e- :電子 O2 +2e- →O- +O-- :活性酸素アニオン
On the other hand, the N type semiconductor metal oxide has a wavelength of 180
When it is irradiated with ultraviolet rays of ˜360 nm, electrons are emitted to the metal surface, the electrons are donated to the ground state oxygen, and the oxygen is excited to transit to the active oxygen anion. hν (180 to 360 nm) + M → e M; N-type semiconductor metal oxide e : electron O 2 + 2e → O + O O : active oxygen anion

【0011】励起された一重項酸素分子は、次に波長6
00〜650nmの可視光線が照射されると基底状態酸
素分子に遷移する。 2 1Δg+hν(600〜650nm)→2 3Σg 2 3Σg :基底状態酸素分子 又、一重項酸素原子と活性酸素アニオンは波長1200
〜1300nmの近赤外線を照射されることにより基底
状態酸素原子に遷移する。1 D+hν(1200〜1300nm)→ 3Σg O- +hν(1200〜1300nm)→ 3Σg3 Σg :基底状態酸素原子 一重項酸素は22.5Kcal/molの高いエネルギ
ーの励起状態にあるので強力な殺菌作用を呈し、通過す
る空気流に対しての殺菌・脱臭・浄化が速やかに行われ
るものである。
The excited singlet oxygen molecule then has a wavelength of 6
When it is irradiated with visible light of 00 to 650 nm, it transits to a ground state oxygen molecule. 2 1 Δg + hν (600 to 650 nm) → 2 3 Σg 2 3 Σg: ground state oxygen molecule The singlet oxygen atom and the active oxygen anion have a wavelength of 1200.
When it is irradiated with a near infrared ray of ˜1300 nm, it transits to a ground state oxygen atom. 1 D + hν (1200 to 1300 nm) → 3 Σg O + hν (1200 to 1300 nm) → 3 Σg 3 Σg: Ground state oxygen atom Since singlet oxygen is in an excited state of high energy of 22.5 Kcal / mol, it has a strong bactericidal action. The sterilization, deodorization, and purification of the air flow passing through are rapidly performed.

【0012】[0012]

【実施例】次に、本発明の空気の殺菌・脱臭・浄化装置
の一例と共に、空気の殺菌、脱臭・浄化方法を図面に基
づいて、以下に説明する。この空気の殺菌・脱臭・浄化
装置の実施例においては、底ケース1と該底ケース1上
に載置される底板2間にオゾンおよび殺菌ランプ用のト
ランスおよび安定器類3を収容し、底ケース1上には正
面にコントロールボックス4を取り付けた上ケース5が
固定されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an example of the air sterilization / deodorization / purification device of the present invention and an air sterilization / deodorization / purification method will be described below with reference to the drawings. In this embodiment of the air sterilization / deodorization / purification device, a transformer and a ballast 3 for ozone and a germicidal lamp are housed between a bottom case 1 and a bottom plate 2 mounted on the bottom case 1, An upper case 5 having a control box 4 attached to the front is fixed on the case 1.

【0013】この上ケース5の上面にはモーターによっ
て駆動される軸流ファン6が2台空気を排出する方向に
取り付けられ、正面のコントロールボックス4の下側に
は、空気を取り入れるルーバー7が設けられている。
Two axial fans 6 driven by a motor are mounted on the upper surface of the upper case 5 so as to discharge air, and a louver 7 for taking in air is provided below the control box 4 on the front side. Has been.

【0014】このルーバー7と軸流ファン6との間に
は、ルーバー7から吸入された空気流を3回上下方向に
湾曲させる蛇行ダクト8と、該蛇行ダクト8の終端から
上方にガイドする上向きダクト9と、該上向きダクト9
の終端から軸流ファン6にガイドする送出ダクト10が
設けられている。
Between the louver 7 and the axial fan 6, a meandering duct 8 for vertically bending the airflow sucked from the louver 3 three times, and an upward direction for guiding upward from the end of the meandering duct 8. Duct 9 and the upward duct 9
A delivery duct 10 that guides the axial fan 6 from the end of is provided.

【0015】前記蛇行ダクト8は上側が山形に湾曲して
いて、隣接する山形との間は垂壁となっている上面部8
a、8b、8c、および下側が上面部8a、8b、8c
の後方に偏って起立壁が上方に突出している下面部8
x、8y、8zで構成され、この蛇行ダクト8の内面と
上向きダクト9の内面にはN型半導体金属酸化物である
酸化チタニウム11が塗布されている。
The upper surface 8 of the meandering duct 8 is curved in a mountain shape on the upper side and is a vertical wall between adjacent mountain shapes.
a, 8b, 8c and the lower side is the upper surface portions 8a, 8b, 8c
Lower surface part 8 in which the standing wall is biased upward and is biased toward the rear of the
x, 8y, and 8z. The inner surface of the meandering duct 8 and the inner surface of the upward duct 9 are coated with titanium oxide 11, which is an N-type semiconductor metal oxide.

【0016】そして、下面部8xの起立壁の前側には波
長180〜200nmの紫外線を照射する紫外線オゾン
ランプ12(UVランプ185nm)が3灯、又下面部
8yの起立壁の前側には波長250〜300nmの紫外
線を照射する紫外線殺菌ランプ13(UVランプ254
nm)が4灯、更には下面部8zの起立壁の前側には波
長600〜650nmの可視光線を照射する高圧ナトリ
ウムランプ14が2灯、空気流と直交する方向に並べて
設置されている。
Three ultraviolet ozone lamps 12 (UV lamps 185 nm) for irradiating ultraviolet rays having a wavelength of 180 to 200 nm are provided on the front side of the standing wall of the lower surface 8x, and a wavelength of 250 is provided on the front side of the standing wall of the lower surface 8y. Ultraviolet germicidal lamp 13 (UV lamp 254 that irradiates ultraviolet rays of up to 300 nm)
4), and two high-pressure sodium lamps 14 for irradiating visible light having a wavelength of 600 to 650 nm are arranged side by side in the direction orthogonal to the air flow on the front side of the standing wall of the lower surface portion 8z.

【0017】又、前記上向きダクト9の下側には、左右
の中心位置に波長600〜650nmの可視光線を照射
するハロゲンランプ15が1灯、又奥側には波長120
0〜1300nmの近赤外線を照射する赤外線ランプ1
6(赤外線ランプ1380nm)が2灯、空気流と直交
する方向に並べて設置されている。
On the lower side of the upward duct 9, there is one halogen lamp 15 for irradiating visible light with a wavelength of 600 to 650 nm at the center position on the left and right, and with a wavelength of 120 on the back side.
Infrared lamp 1 that emits near infrared rays of 0 to 1300 nm
Two 6 (infrared lamps 1380 nm) are arranged side by side in a direction orthogonal to the air flow.

【0018】この実施例の空気の殺菌・脱臭・浄化装置
は、軸流ファン6を回転させると、空気がルーバー7か
ら蛇行ダクト8内に吸入された後、上向きダクト9を介
して送出ダクト10から、例えば建築物内に配管された
送気ダクトに向けて空気が送り込まれるものである。
In the air sterilizing / deodorizing / purifying apparatus of this embodiment, when the axial fan 6 is rotated, air is sucked from the louver 7 into the meandering duct 8 and then the delivery duct 10 is passed through the upward duct 9. From, for example, air is sent toward an air supply duct arranged in a building.

【0019】このルーバー7から吸入された空気流は、
先ず蛇行ダクト8の下面部8xに突き当たって上方にガ
イドされるが、蛇行ダクト8の内面にはN型半導体金属
酸化物である酸化チタニウム11が塗布されているの
で、蛇行ダクト8の下面部8xの起立壁の前側に設けた
紫外線オゾンランプ12、および下面部8yの起立壁の
前側に設けた紫外線殺菌ランプ13から波長180〜3
60nmの紫外線を照射されると、酸化チタニウムの表
面から電子を放出する。
The air flow sucked from the louver 7 is
First, the lower surface 8x of the meandering duct 8 is hit and guided upward, but since the inner surface of the meandering duct 8 is coated with titanium oxide 11 which is an N-type semiconductor metal oxide, the lower surface 8x of the meandering duct 8 is coated. 180 to 3 from the ultraviolet ozone lamp 12 provided on the front side of the standing wall of
When irradiated with 60 nm ultraviolet rays, electrons are emitted from the surface of titanium oxide.

【0020】又、この紫外線オゾンランプ12からの紫
外線はルーバー7から吸入された空気流をも照射するの
で、この空気流中の酸素は、前述のようにして基底状態
酸素原子を生成させるが、この基底状態酸素原子に空気
流中の酸素分子が反応してオゾンを生成する。それと同
時に前記の酸化チタニウム11の表面に放出されていた
電子は、空気流が蛇行ダクト8を通過する間において基
底状態酸素に電子授与され、酸素は励起して活性酸素ア
ニオンへと遷移する。
Further, since the ultraviolet rays from the ultraviolet ozone lamp 12 also irradiate the air stream sucked from the louver 7, the oxygen in the air stream produces the ground state oxygen atoms as described above. Oxygen molecules in the air flow react with the ground state oxygen atoms to generate ozone. At the same time, the electrons emitted to the surface of the titanium oxide 11 are electron-donated to the ground state oxygen while the air flow passes through the meandering duct 8, and the oxygen is excited to transit to the active oxygen anion.

【0021】この生成されたオゾンを含有する空気流は
下面部8xの起立壁で上方にガイドされた後に上面部8
aに突き当たって折り返され、下面部8yの起立壁の前
側に流入するが、この下面部8yの起立壁の前側には紫
外線殺菌ランプ13が設けられているので、波長250
〜300nmの紫外線が照射される。
The generated ozone-containing air flow is guided upward by the upstanding wall of the lower surface portion 8x, and then the upper surface portion 8x.
It abuts against a and is folded back, and flows into the front side of the standing wall of the lower surface portion 8y. However, since the ultraviolet sterilization lamp 13 is provided on the front side of the standing wall of the lower surface portion 8y, the wavelength of 250
Ultraviolet rays of ~ 300 nm are irradiated.

【0022】すると、前記のオゾンは分解して一重項酸
素原子と一重項酸素分子が生成されるが、この一重項酸
素原子と一重項酸素分子の生成は酸化チタニウム11の
表面励起と光ポンピングによって相乗的に高められる。
その後にこの一重項酸素原子と一重項酸素分子を含有す
る空気流は下面部8yの起立壁にガイドされて上方に向
かい、上面部8bに突き当たって折り返され、下面部8
zの起立壁の前側に至り、高圧ナトリウムランプ14か
ら波長600〜650nmの可視光線を照射される。
Then, the ozone is decomposed to generate singlet oxygen atoms and singlet oxygen molecules, which are generated by surface excitation of titanium oxide 11 and optical pumping. Synergistically enhanced.
After that, the air flow containing the singlet oxygen atoms and the singlet oxygen molecules is guided by the standing wall of the lower surface portion 8y toward the upper side, is collided against the upper surface portion 8b, and is folded back.
It reaches the front side of the standing wall of z and is irradiated with visible light having a wavelength of 600 to 650 nm from the high-pressure sodium lamp 14.

【0023】この可視光線の照射によって一重項酸素分
子は基底状態酸素分子に遷移し、この基底状態酸素分子
と一重項酸素原子と活性酸素アニオンとを含有する空気
流は下面部8zの起立壁にガイドされて上面部8cで折
り返され、上向きダクト9内に流入する。
Upon irradiation with this visible light, the singlet oxygen molecules are transformed into ground state oxygen molecules, and the air flow containing the ground state oxygen molecules, singlet oxygen atoms and active oxygen anions is directed to the standing wall of the lower surface 8z. It is guided and folded back at the upper surface portion 8c and flows into the upward duct 9.

【0024】この上向きダクト9内にはハロゲンランプ
15と赤外線ランプ16が設けられているので、ハロゲ
ンランプ15から600〜650nmの可視光線を照射
された後に、波長1200〜1300nmの近赤外線が
照射される。ハロゲンランプ15での600〜650n
mの可視光線の照射で高圧ナトリウムランプ14を照射
されたのと同様な作用を呈する。
Since the halogen lamp 15 and the infrared lamp 16 are provided in the upward duct 9, after the visible light of 600 to 650 nm is irradiated from the halogen lamp 15, the near infrared of wavelength 1200 to 1300 nm is irradiated. It 600-650n with halogen lamp 15
The same effect as irradiation of the high-pressure sodium lamp 14 is exhibited by irradiation with visible light of m.

【0025】その後に赤外線ランプ16で照射される波
長1200〜1300nmの近赤外線でも、同様に一重
項酸素原子と活性酸素アニオンは基底状態酸素原子へと
遷移するが、前記の一重項酸素は22.5Kcal/m
olの高いエネルギーの励起状態にあるため、基底状態
酸素への遷移で高い遷移エネルギーが殺菌・脱臭・浄化
を速やかに、且つ強力に行うので、この実施例の空気の
殺菌・脱臭・浄化装置を通過する空気に対して強力な殺
菌作用を呈することができるものである。
In the near-infrared ray having a wavelength of 1200 to 1300 nm, which is subsequently irradiated by the infrared lamp 16, the singlet oxygen atom and the active oxygen anion similarly transit to the ground state oxygen atom, but the singlet oxygen is 22. 5 Kcal / m
Since it is in the excited state of high energy of ol, the transition energy to the ground state oxygen has a high transition energy for sterilizing / deodorizing / purifying quickly and strongly, so the air sterilizing / deodorizing / purifying device of this example is used. It is capable of exhibiting a strong bactericidal action on the passing air.

【0026】この実施例の空気の殺菌・脱臭・浄化装置
のテストのために、ルーバー7の前に細菌懸濁駅噴霧ダ
クトと空気浮遊細菌採取用ダクトを、軸流ファン6から
の出口に空気浮遊細菌採取用ダクトを取り付け、空気流
入側から噴霧器で試験菌(Staphyloccus
aureus :106 /ml)を噴霧した。この試験
を(菌量/115l空気)で3回繰り返して実施した結
果を表1に示す。
In order to test the air sterilization / deodorization / purification apparatus of this embodiment, a bacteria suspension station spray duct and an air floating bacteria collection duct were installed in front of the louver 7 at the outlet from the axial fan 6. Attach a duct for collecting floating bacteria, and use a sprayer from the air inflow side to test bacteria (Staphyloccus
aureus: 10 6 / ml) was sprayed. Table 1 shows the results obtained by repeating this test three times (bacteria amount / 115 l air).

【0027】[0027]

【表1】 この表からも明らかなように、除去率が99.99%ま
で殺菌効果を高めることができた。
[Table 1] As is clear from this table, the bactericidal effect could be increased up to the removal rate of 99.99%.

【0028】この実施例においては軸流ファンを設け
て、空気の吸入と送出を行っているが、これを実施する
設備に送風装置が設けられている場合には、その必要が
ないものである。
In this embodiment, an axial fan is provided to suck and deliver air, but this is not necessary if the equipment for carrying out this is provided with a blower. .

【0029】[0029]

【発明の効果】本発明は前記したように、ダクト内やケ
ーシング内に流入する空気は、その内面に塗布された酸
化チタニウム等のN型半導体金属酸化物に接触しながら
近紫外線、若しくは近紫外線レーザを照射されるので、
N型半導体金属酸化物の表面励起によって生じる活性酸
素種と光ポンピングにより基底状態酸素が励起され、一
重項酸素の生成が相乗的に高められる。
As described above, according to the present invention, the air flowing into the duct or the casing is exposed to near-ultraviolet rays or near-ultraviolet rays while being in contact with the N-type semiconductor metal oxide such as titanium oxide coated on the inner surface thereof. Because it is irradiated with laser,
The active oxygen species generated by the surface excitation of the N-type semiconductor metal oxide and the ground state oxygen are excited by optical pumping, and the generation of singlet oxygen is synergistically enhanced.

【0030】次にこの一重項酸素に対して可視光線、若
しくは可視光線レーザおよび近赤外線、若しくは近赤外
線レーザの照射によって一重項酸素の電磁波を誘導放出
させ、基底状態酸素への遷移の際の強力な遷移エネルギ
ーによって瞬発的に殺菌・脱臭・浄化が行なわれ、空気
中の残留オゾンが放出されて人体に影響を与えるような
ことがない。
Next, the singlet oxygen is irradiated with visible light or visible light laser and near-infrared or near-infrared laser to induce electromagnetic emission of singlet oxygen, and the singlet oxygen is strongly emitted upon transition to ground state oxygen. With such transition energy, sterilization, deodorization and purification are performed instantaneously, and residual ozone in the air is not released and does not affect the human body.

【0031】従って、汚染空気の処理過程において大容
量の空気を瞬時に殺菌・脱臭することが可能であり、オ
ゾンの分解過程において生成された活性酸素種である一
重項酸素を基底状態酸素に遷移させるので、酸素を蘇ら
せながらの浄化が可能である。
Therefore, it is possible to instantaneously sterilize and deodorize a large amount of air in the process of treating polluted air, and the singlet oxygen, which is an active oxygen species generated in the process of decomposing ozone, is transferred to ground state oxygen. Therefore, it is possible to purify while reviving oxygen.

【0032】そのために、現在問題視されている院内感
染(MRSA)の予防や、ビル内、交通機関の居住空間
の無菌・脱臭化が達成され、更には食品加工や厨房、医
療機関の無菌空間が要求される場所への空気供給装置と
して効果を発揮するものである。
Therefore, prevention of nosocomial infections (MRSA), which is currently a problem, and sterilization and deodorization of living spaces in buildings and transportation facilities are achieved, and further, food processing, kitchens, and sterile spaces in medical institutions. Is effective as an air supply device to a place where is required.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例の縦断側面図である。FIG. 1 is a vertical sectional side view of an embodiment of the present invention.

【図2】同上の横断平面図である。FIG. 2 is a transverse plan view of the above.

【符号の説明】[Explanation of symbols]

6 軸流ファン 8 蛇行ダクト 9 上向きダクト 11 酸化チタニウム 12 紫外線オゾンランプ 13 紫外線殺菌ランプ 14 高圧ナトリウムランプ 15 ハロゲンランプ 16 赤外線ランプ 6 Axial fan 8 Serpentine duct 9 Upward duct 11 Titanium oxide 12 UV ozone lamp 13 UV germicidal lamp 14 High pressure sodium lamp 15 Halogen lamp 16 Infrared lamp

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 基底状態酸素雰囲気中にあるN型半導体
金属酸化物に波長180〜360nmの近紫外線、若し
くは近紫外線レーザ光を照射して、該N型半導体金属酸
化物の表面励起によって生ずる活性酸素種と光ポンピン
グにより基底状態酸素を励起させ、一重項酸素を生成し
た後、波長600〜650nmの可視光線、若しくは可
視光線レーザおよび波長1200〜1300nmの近赤
外線、若しくは近赤外レーザ線を各々単独、同時、或い
は順次照射して、一重項酸素を電磁波の誘導放出で基底
状態酸素に遷移させ、その遷移エネルギーを利用して殺
菌・脱臭・浄化を行うことを特徴とする空気の殺菌・脱
臭・浄化方法およびその装置
1. An activity generated by irradiating an N-type semiconductor metal oxide in a ground state oxygen atmosphere with near-ultraviolet light having a wavelength of 180 to 360 nm or near-ultraviolet laser light to cause surface excitation of the N-type semiconductor metal oxide. Ground state oxygen is excited by oxygen species and optical pumping to generate singlet oxygen, and then visible light having a wavelength of 600 to 650 nm, or a visible light laser and a near infrared ray having a wavelength of 1200 to 1300 nm, or a near infrared laser line, respectively. Single, simultaneous, or sequential irradiation to transfer singlet oxygen to ground state oxygen by stimulated emission of electromagnetic waves, and sterilize, deodorize, and purify air using the transition energy, which is characterized by sterilizing and deodorizing air.・ Purification method and its equipment
【請求項2】 通過する空気流に接するダクトおよびケ
ーシング内面、若しくはフィンにN型半導体金属酸化物
を塗布し、このN型半導体金属酸化物に接触しながら移
行する基底状態酸素に波長180〜360nmの近紫外
線、若しくは近紫外線レーザ光を照射し、該N型半導体
金属酸化物の表面励起によって生成する活性酸素種と光
ポンピングにより一重項酸素を生成する紫外線照射手段
を設け、この空気流における前記紫外線照射手段の後方
に波長600〜650nmの可視光線、波長1200〜
1300nmの近赤外線、若しくはレーザ光を各々単
独、同時或いは順次に照射し、一重項酸素を電磁波の放
出で基底酸素への遷移を行う光線照射手段を具備させた
ことを特徴とする空気の殺菌・脱臭・浄化装置
2. An N-type semiconductor metal oxide is applied to an inner surface of a duct and a casing, or fins, which come into contact with an air flow passing therethrough, and a ground state oxygen which moves while being in contact with the N-type semiconductor metal oxide has a wavelength of 180 to 360 nm. Of near-ultraviolet light or near-ultraviolet laser light, and ultraviolet irradiation means for generating singlet oxygen by optical pumping and active oxygen species generated by surface excitation of the N-type semiconductor metal oxide are provided, and Behind the ultraviolet irradiation means, visible light having a wavelength of 600 to 650 nm and wavelength of 1200 to
Sterilization of air, characterized by comprising a light irradiation means for irradiating near-infrared rays of 1300 nm or laser light, respectively, simultaneously or sequentially, and for making transition of singlet oxygen to base oxygen by emission of electromagnetic waves. Deodorization / purification device
JP22273894A 1994-08-25 1994-08-25 Air sterilization / deodorization / purification method and device Expired - Fee Related JP3493062B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22273894A JP3493062B2 (en) 1994-08-25 1994-08-25 Air sterilization / deodorization / purification method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22273894A JP3493062B2 (en) 1994-08-25 1994-08-25 Air sterilization / deodorization / purification method and device

Publications (2)

Publication Number Publication Date
JPH0857032A true JPH0857032A (en) 1996-03-05
JP3493062B2 JP3493062B2 (en) 2004-02-03

Family

ID=16787133

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Application Number Title Priority Date Filing Date
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Country Link
JP (1) JP3493062B2 (en)

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Also Published As

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