JPH1147528A - Filter apparatus - Google Patents
Filter apparatusInfo
- Publication number
- JPH1147528A JPH1147528A JP9217032A JP21703297A JPH1147528A JP H1147528 A JPH1147528 A JP H1147528A JP 9217032 A JP9217032 A JP 9217032A JP 21703297 A JP21703297 A JP 21703297A JP H1147528 A JPH1147528 A JP H1147528A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- air
- cylindrical
- air duct
- filter device
- 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
Landscapes
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はフィルタ装置、特
に、圧力損失の大きいフィルタ装置を大風量処理に使用
することができるようにしたフィルタ装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter device, and more particularly, to a filter device capable of using a filter device having a large pressure loss for large air volume processing.
【０００２】[0002]
【従来の技術】従来、空調用の粒子除去フィルタ装置と
しては種々のものが知られている。2. Description of the Related Art Various types of particle removal filter devices for air conditioning have been known.
【０００３】[0003]
【発明が解決しようとする課題】然しながら、上記フィ
ルタ装置においては、制御すべき粒子の大きさを小さく
すれば小さくするほど、フィルタ装置の抵抗係数は大き
くなり、高風速の空気の処理は困難で、従って小さな粒
子まで制御された清浄な空気を単位時間あたり大量に供
給することは難しかった。However, in the above filter device, the smaller the size of the particles to be controlled, the larger the resistance coefficient of the filter device becomes, and it is difficult to process high-speed air. Therefore, it was difficult to supply a large amount of controlled clean air per unit time even to small particles.
【０００４】本発明は少ない占有空間でより大量の空気
を処理できるようにすることを目的とするものである。An object of the present invention is to enable a larger amount of air to be processed in a smaller occupied space.
【０００５】[0005]
【課題を解決するための手段】本発明のフィルタ装置
は、風道内に配置した筒状のフィルタより成り、このフ
ィルタはその一端開口が閉じられ、他端開口と上記風道
間に上記筒状のフィルタの側面外周を介して空気通路が
形成されることを特徴とする。A filter device according to the present invention comprises a cylindrical filter disposed in an air passage, one end of which is closed, and the cylindrical filter disposed between the other end and the air passage. An air passage is formed through the outer periphery of the side surface of the filter.
【０００６】上記フィルタは、光触媒フィルタであり、
その中心部に同軸状に延びる紫外線ランプが配置されて
いることを特徴とする。[0006] The filter is a photocatalytic filter,
An ultraviolet lamp extending coaxially is arranged at the center thereof.
【０００７】また、本発明のクリーンルーム用有害ガス
対策空調装置は、クリーンルームの空気取入口に設けた
ＵＬＰＡフィルタと、このＵＬＰＡフィルタとクリーン
ルーム外部間に介挿した光触媒フィルタ装置とより成
り、上記光触媒フィルタは風道内に配置した筒状の光触
媒フィルタより成り、上記光触媒フィルタは、その一端
が閉じられ、他端開口と上記風道間に上記筒状の光触媒
フィルタの側面外周を介して空気通路が形成されること
を特徴とする。Further, the air conditioner for harmful gas control for a clean room according to the present invention comprises an ULPA filter provided at an air inlet of the clean room, and a photocatalytic filter device interposed between the ULPA filter and the outside of the clean room. Consists of a cylindrical photocatalyst filter disposed in the air passage, the photocatalyst filter having one end closed, and an air passage formed between the other end opening and the air passage through the outer periphery of the side surface of the cylindrical photocatalyst filter. It is characterized by being performed.
【０００８】上記フィルタ装置は、光触媒フィルタの上
流側に活性炭吸着剤が配置されていることを特徴とす
る。[0008] The filter device is characterized in that an activated carbon adsorbent is disposed upstream of the photocatalytic filter.
【０００９】[0009]
【発明の実施の形態】以下、図面によって本発明の実施
例を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】本発明においては図１及び図２に示すよう
に、筒状のフィルタ１を風道２内に同心状に空隙３を介
して配置し、その下流端開口を盲板４で塞ぎ、上流端開
口と上記風道の内周面間を塞ぎ板５によって塞ぎ、風道
２から上記フィルタ１内に入る空気を強制的に、フィル
タ１の側面を介して全量下流側の風道２内に流れるよう
にする。In the present invention, as shown in FIG. 1 and FIG. 2, a cylindrical filter 1 is disposed concentrically in a wind path 2 via a gap 3, and the downstream end opening is closed by a blind plate 4. The gap between the upstream end opening and the inner peripheral surface of the wind path is closed by a blocking plate 5, and the air entering the filter 1 from the wind path 2 is forcibly forced through the side surface of the filter 1 into the downstream side of the wind path 2. So that it flows to
【００１１】本発明のフィルタ装置は、上記のような構
成であるから、フィルタ通過時の面風速を抑え、抵抗係
数の大きいフィルタでも大風量処理に使用することがで
きるようになる。Since the filter device of the present invention is configured as described above, the surface wind speed when passing through the filter is suppressed, and a filter having a large resistance coefficient can be used for large air volume processing.
【００１２】また、空気の流れ方向の筒状フィルタの長
さを変えることによって、フィルタの面積を調節でき、
抵抗の大きなフィルタでもフィルタ通過時の面風速を遅
くできるので処理風量を落とさずに圧損を抑えることが
できる。Further, by changing the length of the cylindrical filter in the direction of air flow, the area of the filter can be adjusted.
Even with a filter having a large resistance, the surface wind speed when passing through the filter can be reduced, so that the pressure loss can be suppressed without reducing the processing air volume.
【００１３】なお、本発明においては図２〜図６に示す
ようにフィルタ１の断面形状を丸や四角等とし、風道２
との相対位置を種々変更しても良い。In the present invention, as shown in FIG. 2 to FIG.
May be variously changed.
【００１４】また、図７に示すようにフィルタ１の下流
端開口の代わりに上流端開口を塞ぎ板４によって塞ぐよ
うにしても良い。As shown in FIG. 7, the upstream end opening of the filter 1 may be closed by the closing plate 4 instead of the downstream end opening.
【００１５】更に図８及び図９に示すように筒状フィル
タ１の内径に合致せしめた風導入用風道６または風導出
用の風道７を用いても良い。Further, as shown in FIGS. 8 and 9, a wind path 6 for introducing air or a wind path 7 for deriving air may be used which is matched with the inner diameter of the cylindrical filter 1.
【００１６】本発明の他の実施例においては、図１０〜
図１２に示すように、フィルタ１の代わりに光を照射す
ると強力な酸化力を発揮し、炭化水素などを最終的には
ＣＯ2 とＨ2 Ｏにまで酸化するＴｉＯ2 等の光触媒を用
いた光触媒ハニカムフィルタ８を用い、その中心部に軸
方向に延びる紫外線ランプ９をソケット１０を介して配
置し、対角支持杆１１と網板１２によって支持せしめ
る。In another embodiment of the present invention, FIGS.
As shown in FIG. 12, instead of the filter 1, a photocatalyst such as TiO 2 which exerts a strong oxidizing power when irradiated with light and finally oxidizes hydrocarbons and the like to CO 2 and H 2 O is used. Using a photocatalytic honeycomb filter 8, an ultraviolet lamp 9 extending in the axial direction is disposed at the center of the filter via a socket 10, and is supported by a diagonal support rod 11 and a net plate 12.
【００１７】なお、光触媒は、ガス状汚染物質を酸化分
解するには時間がかかるため、光触媒ハニカムフィルタ
８の上流側に活性炭より成る吸着材を配置するのが好ま
しい。Since it takes time for the photocatalyst to oxidize and decompose gaseous pollutants, it is preferable to dispose an adsorbent made of activated carbon upstream of the photocatalyst honeycomb filter 8.
【００１８】この場合、光触媒ハニカムフィルタ８によ
るガス状汚染物質の除去にもっとも効力を発揮するのは
吸着材による吸着過程であり、光触媒は吸着材上に捕捉
された分子を除々に攻撃し、ガス状汚染物質を完全酸化
分解する。In this case, the most effective way to remove gaseous pollutants by the photocatalyst honeycomb filter 8 is the adsorption process by the adsorbent, and the photocatalyst gradually attacks the molecules trapped on the adsorbent, and the Completely oxidatively decomposes pollutants.
【００１９】このため、空調機能を止めた後、同時に光
触媒への紫外線照射をやめると、活性炭上に吸着された
有害ガス成分が酸化分解されずに残り、次に運転を再開
した際に吸着材の吸着サイトが前運転時に吸着された化
学種によって占領され、運転を重ねれば重ねるほど活性
炭の吸着能は見かけ上減少していく。For this reason, if the irradiation of the ultraviolet rays to the photocatalyst is stopped at the same time after the air conditioning function is stopped, the harmful gas components adsorbed on the activated carbon remain without being oxidized and decomposed. Are occupied by the species adsorbed during the previous operation, and the more the operation is repeated, the more the adsorption capacity of the activated carbon apparently decreases.
【００２０】従って、フィルタユニットへの通気を止め
てからも、活性炭上の有害ガス成分濃度が落ち着くまで
は紫外線ランプ９の電源は切らないで通気終了後も所定
時間点灯させておくのが好ましい。Therefore, it is preferable that the ultraviolet lamp 9 is not turned off until the concentration of the harmful gas component on the activated carbon is settled even after the ventilation to the filter unit is stopped, and the ultraviolet lamp 9 is kept lit for a predetermined time after the completion of the ventilation.
【００２１】また、被処理空気中に硫黄化合物や、窒素
化合物が存在すれば酸化課程において最終的に硫酸や硝
酸などの低揮発性無機酸性物質を生じ、触媒表面の活性
サイトにとどまるため、この光触媒フィルタもメンテナ
ンスフリーではない。In addition, if a sulfur compound or a nitrogen compound is present in the air to be treated, a low-volatile inorganic acid substance such as sulfuric acid or nitric acid is finally produced in the oxidation process and remains at an active site on the catalyst surface. Photocatalytic filters are not maintenance-free.
【００２２】なお、光触媒を使用する場合、ルチル型Ｔ
ｉＯ2 で＜４００ｎｍ、アナターゼ型ＴｉＯ2 で＜３８
０ｎｍの光が表面に照射される必要がある。When a photocatalyst is used, rutile T
<400 nm for iO 2 and <38 for anatase TiO 2
The surface needs to be illuminated with 0 nm light.
【００２３】図１３〜図１５は本発明のフィルタ１をク
リーンルームの有害物質の除去に応用した例を示し、１
３はクリーンルーム、１４はＵＬＰＡフィルタ、１５は
ファンである。FIGS. 13 to 15 show an example in which the filter 1 of the present invention is applied to the removal of harmful substances in a clean room.
3 is a clean room, 14 is an ULPA filter, and 15 is a fan.
【００２４】なお、図１３に示すものは図１に示す型の
フィルタ１を用いた場合、図１４に示すものは図９に示
す型のフィルタ１を用いた場合、図１５に示すものは図
７に示す型のフィルタ１を用いた場合である。The filter shown in FIG. 13 uses the filter 1 of the type shown in FIG. 1, the filter shown in FIG. 14 uses the filter 1 of the type shown in FIG. 9, and the filter shown in FIG. In this case, a filter 1 of the type shown in FIG. 7 is used.
【００２５】この場合上記フィルタ１に代えて図１０〜
図１２に示す光触媒ハニカムフィルタ８を用いても良
い。In this case, the filter 1 is replaced with the filter shown in FIGS.
The photocatalyst honeycomb filter 8 shown in FIG. 12 may be used.
【００２６】[0026]
【発明の効果】上記のように本発明のフィルタ装置によ
れば、少ない占有空間でより大量の空気を効果的に処理
できるようになる大きな利益がある。As described above, according to the filter device of the present invention, there is a great advantage that a large amount of air can be effectively processed in a small occupied space.
【図１】本発明のフィルタ装置の説明用縦断正面図であ
る。FIG. 1 is an explanatory vertical sectional front view of a filter device of the present invention.
【図２】本発明のフィルタ装置の説明用縦断側面図であ
る。FIG. 2 is an explanatory vertical sectional side view of the filter device of the present invention.
【図３】本発明のフィルタ装置の説明用縦断側面図であ
る。FIG. 3 is an explanatory vertical sectional side view of the filter device of the present invention.
【図４】本発明のフィルタ装置の説明用縦断側面図であ
る。FIG. 4 is an explanatory vertical sectional side view of the filter device of the present invention.
【図５】本発明のフィルタ装置の説明用縦断側面図であ
る。FIG. 5 is an explanatory vertical sectional side view of the filter device of the present invention.
【図６】本発明のフィルタ装置の説明用縦断側面図であ
る。FIG. 6 is an explanatory vertical sectional side view of the filter device of the present invention.
【図７】本発明のフィルタ装置の他の実施例説明用縦断
正面図である。FIG. 7 is a vertical sectional front view for explaining another embodiment of the filter device of the present invention.
【図８】本発明のフィルタ装置の他の実施例説明用縦断
正面図である。FIG. 8 is a longitudinal sectional front view for explaining another embodiment of the filter device of the present invention.
【図９】本発明のフィルタ装置の他の実施例説明用縦断
正面図である。FIG. 9 is a longitudinal sectional front view for explaining another embodiment of the filter device of the present invention.
【図１０】本発明のフィルタ装置の更に他の実施例説明
用縦断正面図である。FIG. 10 is a longitudinal sectional front view for explaining still another embodiment of the filter device of the present invention.
【図１１】図１０のＡ−Ａ′線断面図である。FIG. 11 is a sectional view taken along line AA ′ of FIG. 10;
【図１２】図１０のＢ−Ｂ′線断面図である。FIG. 12 is a sectional view taken along line BB ′ of FIG. 10;
【図１３】本発明のフィルタ装置を用いたクリーンルー
ム用有害ガス対策空調装置の説明図である。FIG. 13 is an explanatory view of a harmful gas control air conditioner for a clean room using the filter device of the present invention.
【図１４】本発明のフィルタ装置を用いたクリーンルー
ム用有害ガス対策空調装置の他の実施例の説明図であ
る。FIG. 14 is an explanatory view of another embodiment of a harmful gas control air conditioner for a clean room using the filter device of the present invention.
【図１５】本発明のフィルタ装置を用いたクリーンルー
ム用有害ガス対策空調装置の更に他の実施例の説明図で
ある。FIG. 15 is an explanatory view of still another embodiment of a harmful gas control air conditioner for a clean room using the filter device of the present invention.
１ フィルタ ２ 風道 ３ 空隙 ４ 盲板 ５ 塞ぎ板 ６ 風導入用の風道 ７ 風導出用の風道 ８ 光触媒ハニカムフィルタ ９ 紫外線ランプ １０ ソケット １１ 対角支持杆 １２ 網板 １３ クリーンルーム １４ ＵＬＰＡフィルタ １５ ファン DESCRIPTION OF SYMBOLS 1 Filter 2 Wind path 3 Air gap 4 Blind plate 5 Closing plate 6 Wind path for wind introduction 7 Wind path for wind derivation 8 Photocatalyst honeycomb filter 9 Ultraviolet lamp 10 Socket 11 Diagonal support rod 12 Net board 13 Clean room 14 ULPA filter 15 fan
Claims (5)
り、このフィルタはその一端開口が閉じられ、他端開口
と上記風道間に上記筒状のフィルタの側面外周を介して
空気通路が形成されることを特徴とするフィルタ装置。An air passage is provided between the other end of the filter and the air passage through an outer periphery of a side surface of the cylindrical filter. A filter device characterized by being formed.
その中心部に同軸状に延びる紫外線ランプが配置されて
いることを特徴とする請求項１記載のフィルタ装置。2. The filter according to claim 1, wherein the filter is a photocatalytic filter.
2. The filter device according to claim 1, wherein an ultraviolet lamp extending coaxially is disposed at a center of the filter.
ＬＰＡフィルタと、このＵＬＰＡフィルタとクリーンル
ーム外部間に介挿した光触媒フィルタ装置とより成り、
上記光触媒フィルタは風道内に配置した筒状の光触媒フ
ィルタより成り、上記光触媒フィルタは、その一端が閉
じられ、他端開口と上記風道間に上記筒状の光触媒フィ
ルタの側面外周を介して空気通路が形成されることを特
徴とするクリーンルーム用有害ガス対策空調装置。3. A U provided at an air intake of a clean room.
An LPA filter, and a photocatalytic filter device inserted between the ULPA filter and the outside of the clean room.
The photocatalyst filter comprises a cylindrical photocatalyst filter arranged in an air passage, and the photocatalyst filter has one end closed and air between the other end opening and the air passage through a side outer periphery of the cylindrical photocatalyst filter. A harmful gas control air conditioner for a clean room, wherein a passage is formed.
ンプが配置されていることを特徴とする請求項２または
３記載のフィルタ装置。4. The filter device according to claim 2, wherein an ultraviolet lamp is disposed in the cylindrical photocatalytic filter.
着剤が配置されていることを特徴とする請求項２、３ま
たは４記載のフィルタ装置。5. The filter device according to claim 2, wherein an activated carbon adsorbent is arranged upstream of the photocatalytic filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9217032A JPH1147528A (en) | 1997-07-29 | 1997-07-29 | Filter apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9217032A JPH1147528A (en) | 1997-07-29 | 1997-07-29 | Filter apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1147528A true JPH1147528A (en) | 1999-02-23 |
Family
ID=16697777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9217032A Pending JPH1147528A (en) | 1997-07-29 | 1997-07-29 | Filter apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1147528A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006288938A (en) * | 2005-04-14 | 2006-10-26 | Samsung Electronics Co Ltd | Chemical filter, and fan filter unit having the same |
| JP2007089754A (en) * | 2005-09-28 | 2007-04-12 | Toshiba Corp | Air cleaner |
| CN1327163C (en) * | 2004-10-28 | 2007-07-18 | 上海交通大学 | Photo catalysis reaction chamber fir air purification |
-
1997
- 1997-07-29 JP JP9217032A patent/JPH1147528A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327163C (en) * | 2004-10-28 | 2007-07-18 | 上海交通大学 | Photo catalysis reaction chamber fir air purification |
| JP2006288938A (en) * | 2005-04-14 | 2006-10-26 | Samsung Electronics Co Ltd | Chemical filter, and fan filter unit having the same |
| JP2007089754A (en) * | 2005-09-28 | 2007-04-12 | Toshiba Corp | Air cleaner |
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