JPH0568832A - Filter for cleaning air - Google Patents
Filter for cleaning airInfo
- Publication number
- JPH0568832A JPH0568832A JP3259732A JP25973291A JPH0568832A JP H0568832 A JPH0568832 A JP H0568832A JP 3259732 A JP3259732 A JP 3259732A JP 25973291 A JP25973291 A JP 25973291A JP H0568832 A JPH0568832 A JP H0568832A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- adsorbent
- contg
- paper
- air
- 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
Links
Landscapes
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はビルや工場，家庭用等の
空調器等に用いられる、空気浄化用フィルタに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifying filter used in air conditioners for buildings, factories, homes and the like.
【０００２】[0002]
【従来の技術】空気中に含まれる臭気性物質や有害物質
等の除去を目的として、活性炭を用いた各種フィルタが
提案されている。そのようなフィルタの一つとしてアル
カリ吸着剤或いは酸吸着剤を含有させた活性炭含有フィ
ルタがある。これらのフィルタは物理的に活性炭に吸着
されにくい硫化水素、アルデヒド、メルカプタン等の酸
性物質或いはアンモニア、アミン等のアルカリ性物質の
吸着に優れた効果を有している。しかし酸性かアルカリ
性かいずれかの物質しか吸着できないため、いずれの物
質も吸着させようとすると２種類のフィルタを積層する
必要があり、ルームエアコン等のスペースの限られた場
所に設置することは困難であった。またフィルタを積層
することは圧損を増大させる原因となり、ブロワの負荷
が高くなるという問題がある。2. Description of the Related Art Various filters using activated carbon have been proposed for the purpose of removing odorous substances and harmful substances contained in the air. As one of such filters, there is an activated carbon-containing filter containing an alkali adsorbent or an acid adsorbent. These filters have an excellent effect of adsorbing acidic substances such as hydrogen sulfide, aldehydes, mercaptans, etc., or alkaline substances such as ammonia, amines etc. which are hard to be adsorbed physically on activated carbon. However, since it can only adsorb either acidic or alkaline substances, it is necessary to stack two types of filters when attempting to adsorb any substance, and it is difficult to install it in a place with limited space such as a room air conditioner. Met. Further, stacking the filters causes an increase in pressure loss, which causes a problem that the load of the blower becomes high.
【０００３】[0003]
【発明が解決しようとする課題】本発明は上記のような
事情に鑑みてなされたものであり、酸性物質及びアルカ
リ性物質のいずれをも効率よく吸着できる小容積の活性
炭含有フィルタを提供しようとするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a small-volume activated carbon-containing filter capable of efficiently adsorbing both an acidic substance and an alkaline substance. It is a thing.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決すること
のできた本発明の空気浄化用フィルタは活性炭を含有す
るハニカム状の空気浄化用フィルタであって、ハニカム
を構成するフルート部及びライナー部のいずれか一方が
アルカリ吸着剤を含有し、他方が酸吸着剤を含有するこ
とに要旨がある。The air purifying filter of the present invention which has been able to solve the above-mentioned problems is a honeycomb-shaped air purifying filter containing activated carbon, and comprises a flute portion and a liner portion constituting a honeycomb. It is essential that one of them contains an alkali adsorbent and the other contains an acid adsorbent.
【０００５】[0005]
【作用】本発明者等は空気浄化用フィルタとして先にハ
ニカム状のフィルタを提案した（特公昭59-51423) 。該
フィルタは吸着容量の容積効率が高く、しかも圧力損失
が低いという優れた特徴を有している。そこで本発明者
等が前記問題点を解決することを目的として種々検討し
た結果、ハニカム状フィルタに酸吸着剤及びアルカリ吸
着剤を区分含有させることにより問題を解決できること
を見出した。この場合特に大切なことは酸吸着剤および
アルカリ吸着剤を混合するのではなく、ハニカムを構成
するフルート部及びライナー部に夫々分けて含有させる
ことである。両者を混合した状態で含有させた場合には
両者が化学的に反応して夫々の化学的性質が変化してし
まうため、充分な効果を得ることができない。The present inventors previously proposed a honeycomb filter as an air purifying filter (Japanese Patent Publication No. 59-51423). The filter has the excellent characteristics of high volumetric efficiency of adsorption capacity and low pressure loss. Therefore, as a result of various investigations by the present inventors for the purpose of solving the above problems, they found that the problem can be solved by separately containing an acid adsorbent and an alkali adsorbent in the honeycomb filter. In this case, what is particularly important is not to mix the acid adsorbent and the alkali adsorbent, but to separately contain them in the flute part and the liner part that constitute the honeycomb. When both are contained in a mixed state, they chemically react with each other to change their chemical properties, so that a sufficient effect cannot be obtained.
【０００６】以下更に詳しく説明する。本発明に用いら
れるハニカム状活性炭含有フィルタは活性炭素繊維及び
／又は粒状活性炭を含有する活性炭含有紙より構成され
る。活性炭含有紙は活性炭素繊維単独で構成することも
できるが、保形性を高めるために他に天然或いは合成の
パルプ材料更にはＰＶＡ繊維等の抄紙用バインダー等を
加えられていてもよい。尚この時は活性炭を少なくとも
１０重量％以上含有していることが望まれる。また活性
炭含有紙は気体中の被吸着物質が速やかにシート内部ま
で浸透拡散する程度に薄く、且つ充分な多孔性を有して
いる必要がある。そのための好ましい嵩密度は 0.1〜0.
4g/cm3、より好ましくは0.15〜0.30g/cm3 であり、好ま
しい厚みは0.05〜0.80mm、より好ましくは 0.1〜0.6mm
である。A more detailed description will be given below. The honeycomb-shaped activated carbon-containing filter used in the present invention is composed of activated carbon-containing paper containing activated carbon fibers and / or granular activated carbon. The activated carbon-containing paper may be composed of activated carbon fibers alone, but in order to enhance the shape retention property, a natural or synthetic pulp material, or a papermaking binder such as PVA fiber may be added. At this time, it is desirable that the active carbon content be at least 10% by weight. The activated carbon-containing paper must be thin enough and have sufficient porosity so that the substance to be adsorbed in the gas can quickly permeate and diffuse into the inside of the sheet. The preferred bulk density for that is 0.1-0.
4g / cm 3, more preferably from 0.15~0.30g / cm 3, preferred thickness 0.05～0.80Mm, more preferably 0.1~0.6mm
Is.
【０００７】活性炭含有紙には酸吸着物質或いはアルカ
リ吸着物質を含有させる。酸吸着物質は特に限定される
ものではなく、酸性物質を吸着することができ且つ揮発
性が小さく、ある程度安定性の高いものであればよく、
例えばモノエタノールアミン、ジエタノールアミン、ポ
リアルキレンポリアミン等の有機アミン類あるいはリン
酸グアニジンやスルファミン酸グアニジンの如きグアニ
ジン類等を用いることができる。アルカリ吸着物質も特
に限定されるものではなく、アルカリを吸着することが
でき且つ揮発性が小さく、ある程度安定性の高いもので
あればよく、例えばリンゴ酸やクエン酸、酒石酸等の有
機モノ及びポリカルボン酸等を挙げることができる。こ
れらの吸着剤は活性炭含有紙を作るときに添加してもよ
いし、抄紙後に添着乾燥させてもよい。添着量はフィル
タ材重量に対し１〜５０重量％が好ましい。The activated carbon-containing paper contains an acid adsorbing substance or an alkali adsorbing substance. The acid adsorbing substance is not particularly limited as long as it can adsorb an acidic substance, has low volatility, and is highly stable to some extent,
For example, organic amines such as monoethanolamine, diethanolamine and polyalkylene polyamine, or guanidines such as guanidine phosphate and guanidine sulfamate can be used. The alkali adsorbing substance is not particularly limited as long as it can adsorb an alkali, has low volatility, and is highly stable to some extent. For example, malic acid, citric acid, tartaric acid, and other organic substances and poly Examples thereof include carboxylic acid. These adsorbents may be added at the time of making the activated carbon-containing paper, or may be attached and dried after paper making. The amount of impregnation is preferably 1 to 50% by weight based on the weight of the filter material.
【０００８】上記活性炭含有紙をハニカム状に成形する
に当たっては、フルート部とライナー部のいずれか一方
にアルカリ吸着剤を含有する活性炭含有紙を用い、他方
に酸吸着剤を含有する活性炭含有紙を用いる。このよう
な構成とすることによって、フルート部とライナー部に
囲まれた管状路を被処理空気が渦を巻きながら通る時
に、アルカリ吸着剤及び酸吸着剤のいずれにも接するこ
ととなり、アルカリ性物質及び酸性物質のいずれもが吸
着される。尚フルート部の方が管状路に占める面積割合
が大きいので、処理する空気に含まれる物質の性質によ
って、アルカリ吸着剤或いは酸吸着剤のいずれを含有す
る活性炭含有紙をフルート部に用いるかを決定すること
が好ましい。In forming the above-mentioned activated carbon-containing paper into a honeycomb shape, an activated carbon-containing paper containing an alkaline adsorbent is used in either one of the flute portion and the liner portion, and the other activated carbon-containing paper containing an acid adsorbent is used. To use. With such a configuration, when the air to be treated passes through the tubular passage surrounded by the flute portion and the liner portion while swirling, it comes into contact with both the alkali adsorbent and the acid adsorbent, and the alkaline substance and Any of the acidic substances are adsorbed. Since the flute portion occupies a larger area in the tubular passage, it is decided whether to use activated carbon-containing paper containing an alkaline adsorbent or an acid adsorbent for the flute portion depending on the nature of the substance contained in the air to be treated. Preferably.
【０００９】また成形に際しては通常の段ボール製造機
を用いることができる。即ち波形に賦形した波形シート
（フルート部となる）の片面或いは両面に平らなシート
（ライナー部となる）を接合して段ボールを形成し、更
に得られた段ボールを水平或いはロール状に積層するこ
とによってハニカム状に成形する。図１に片面に平らな
シートを積層した片段ボールの断面図を、図２に片段ボ
ールを積層したハニカム状空気浄化フィルタの斜視図を
示す。尚段ボールを成形する際は波形の頂点に接着剤を
付けて固定するのが一般的であるが、次工程で積層する
ことによってある程度固定されるので、接着剤を用いな
くてもよい。A normal corrugated board manufacturing machine can be used for molding. That is, a corrugated sheet (which serves as the flute portion) formed into a corrugated shape is joined to one or both sides of a flat sheet (which serves as the liner portion) to form a corrugated board, and the obtained corrugated board is laminated in a horizontal or roll shape. By doing so, it is formed into a honeycomb shape. FIG. 1 shows a cross-sectional view of a single-faced corrugated cardboard having flat sheets laminated on one side, and FIG. 2 shows a perspective view of a honeycomb-shaped air purification filter in which single-faced cardboard layers are laminated. When corrugated cardboard is molded, it is common to attach an adhesive to the apex of the corrugation and fix it, but since it is fixed to some extent by laminating in the next step, it is not necessary to use an adhesive.
【００１０】上記波形シートの波ピッチ及び波高によっ
て、積層体とした際に形成される管状路の太さが決ま
る。細くなるほど流体を流した時の圧損が大きくなる
が、流体中の被吸着物質の管壁への移動速度が大きくな
り、処理に必要な積層体の長さを短くすることができ
る。従って適度な太さが必要であり、好ましい波ピッチ
は３０cmあたり３０〜１５０であり、好ましい波高は
0.6〜3.0 mm、より好ましくは0.8〜2.5 mmである。また
波高を炭素繊維含有紙の厚みで割った値が３以上である
ことが好ましい。The wave pitch and wave height of the corrugated sheet determine the thickness of the tubular passage formed in the laminated body. The thinner the pressure becomes, the greater the pressure loss when flowing the fluid becomes, but the moving speed of the substance to be adsorbed in the fluid to the pipe wall becomes high, and the length of the laminate required for the treatment can be shortened. Therefore, it is necessary to have an appropriate thickness, and the preferable wave pitch is 30 to 150 per 30 cm, and the preferable wave height is
It is 0.6 to 3.0 mm, more preferably 0.8 to 2.5 mm. The value obtained by dividing the wave height by the thickness of the carbon fiber-containing paper is preferably 3 or more.
【００１１】以下実施例によって本発明を更に詳述する
が、下記実施例は本発明を制限するものではなく、前・
後記の趣旨を逸脱しない範囲で変更実施することは全て
本発明の技術範囲に包含される。The present invention will be described in more detail with reference to the following examples, but the following examples do not limit the present invention.
All modifications and implementations are included in the technical scope of the present invention without departing from the spirit of the description below.
【００１２】[0012]
【実施例】種々の空気浄化用フィルタを作成し、その特
性を調べた。 実施例１ 粉末活性炭含有紙（活性炭含有量６０％、かさ密度0.3g
/cm3)に抄紙後リン酸ジグアニジン３０重量％を添着乾
燥させたものをフルート部とし、リンゴ酸１０重量％を
添着乾燥させたものをライナー部として、波ピッチ約
3.1mm、 波高約２mmの片段ボールを成形した。 尚この片
段ボールのフルートとライナーの長さの比は1.5:１であ
った。得られた片段ボールを３２段積層して高さ６５mm
のハニカム状空気清浄用フィルタを作成した。空気浄化
用フィルタの層長は１２mmであった。[Examples] Various air purifying filters were prepared and their characteristics were investigated. Example 1 Paper containing powdered activated carbon (activated carbon content 60%, bulk density 0.3 g
/ cm 3 ), after papermaking, 30% by weight of diguanidine phosphate was dried as a flute part, and 10% by weight of malic acid as a liner part as a line pitch.
A piece of corrugated cardboard with a height of 3.1 mm and a wave height of about 2 mm was formed. The length ratio between the flute and the liner of this single-faced corrugated board was 1.5: 1. The height of the resulting corrugated cardboard is 32 mm and the height is 65 mm.
The honeycomb-shaped air cleaning filter of No. 1 was produced. The layer length of the air purification filter was 12 mm.
【００１３】比較例１ 活性炭含有紙（かさ密度0.3g/cm3) にリン酸ジグアニジ
ン３０重量％を添着乾燥させたものを、フルート部及び
ライナー部に用いた以外は実施例１と同様にして空気浄
化用フィルタを作成した。Comparative Example 1 The same procedure as in Example 1 was carried out except that activated carbon-containing paper (bulk density: 0.3 g / cm 3 ) was impregnated with 30% by weight of diguanidine phosphate and dried, and used for the flute portion and the liner portion. An air purification filter was created.
【００１４】比較例２ 活性炭含有紙（かさ密度0.3g/cm3) にリンゴ酸１０重量
％を添着乾燥させたものを、フルート部及びライナー部
に用いた以外は実施例１と同様にして空気浄化用フィル
タを作成した。Comparative Example 2 Air was carried out in the same manner as in Example 1 except that activated carbon-containing paper (bulk density: 0.3 g / cm 3 ) was impregnated with 10% by weight of malic acid and dried, and used for the flute portion and the liner portion. A purification filter was created.
【００１５】比較例３ 何も添着乾燥させていない活性炭含有紙（かさ密度0.3g
/cm3)を、フルート部及びライナー部に用いた以外は実
施例１と同様にして空気浄化用フィルタを作成した。Comparative Example 3 Paper containing activated carbon and impregnated and dried (bulk density: 0.3 g)
/ cm 3 ) was used in the same manner as in Example 1 except that the flute portion and the liner portion were used.
【００１６】以上の様にして得られた空気清浄用フィル
タを直径６５mmの円筒状ガラス管内に設置して、該ガラ
ス管にアンモニアガス５ppm とメチルメルカプタンガス
５ppm を含有する空気（温度２５℃、相対湿度５０％）
を空塔線速度２５cm/sで流した。その時の空気浄化用フ
ィルタ入口側及び出口側のガス濃度をガス感知管で測定
した（図３参照）。結果を表１に示す。The air-purifying filter obtained as described above is placed in a cylindrical glass tube having a diameter of 65 mm, and the glass tube contains air containing 5 ppm of ammonia gas and 5 ppm of methyl mercaptan gas (temperature 25 ° C., relative temperature). Humidity 50%)
At a linear velocity of 25 cm / s. At that time, the gas concentrations on the inlet side and the outlet side of the air purifying filter were measured with a gas sensing tube (see FIG. 3). The results are shown in Table 1.
【００１７】[0017]
【表１】 [Table 1]
【００１８】表に示される様に実施例１の空気清浄用フ
ィルタは酸吸着剤及びアルカリ吸着剤を含有しており、
アンモニアに対してもメチルメルカプタンに対しても優
れた吸着能を示したが、比較例１〜３の空気清浄用フィ
ルタは酸吸着材及びアルカリ吸着剤のいずれか又は両方
を含有しておらず、アンモニア及びメチルメルカプタン
の両方共を吸着できるものはなかった。As shown in the table, the air cleaning filter of Example 1 contains an acid adsorbent and an alkali adsorbent,
Although having excellent adsorption ability to both ammonia and methyl mercaptan, the air cleaning filters of Comparative Examples 1 to 3 do not contain either or both of the acid adsorbent and the alkali adsorbent, None could adsorb both ammonia and methyl mercaptan.
【００１９】[0019]
【発明の効果】本発明は以上のように構成されており、
酸性物質及びアルカリ性物質のいずれをも効率よく吸着
できる、容積の小さい空気浄化用フィルタを提供するこ
とができる様になった。The present invention is configured as described above,
It has become possible to provide an air purification filter having a small volume, which can efficiently adsorb both acidic substances and alkaline substances.
【図１】片段ボールの断面図。FIG. 1 is a sectional view of a single-faced cardboard.
【図２】片段ボールを積層したハニカム状空気浄化フィ
ルタの斜視図。FIG. 2 is a perspective view of a honeycomb air purification filter in which single-faced cardboards are laminated.
【図３】実施例におけるフィルタの吸着能の測定装置を
示す図。FIG. 3 is a diagram showing a device for measuring the adsorption ability of a filter in the example.
１ フルート部 ２ ライナー部 ３ 空気浄化フィルタ ４ 悪臭ガス混合空気 ５ 入口側濃度測定口 ６ 出口側濃度測定口 ７ ガラス管 1 flute part 2 liner part 3 air purification filter 4 malodorous gas mixed air 5 inlet side concentration measuring port 6 outlet side concentration measuring port 7 glass tube
Claims (1)
用フィルタであって、ハニカムを構成するフルート部及
びライナー部のいずれか一方がアルカリ吸着剤を含有
し、他方が酸吸着剤を含有することを特徴とする空気浄
化用フィルタ。1. A honeycomb-shaped air purification filter containing activated carbon, wherein one of a flute portion and a liner portion constituting the honeycomb contains an alkali adsorbent and the other contains an acid adsorbent. Air purification filter characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03259732A JP3074844B2 (en) | 1991-09-10 | 1991-09-10 | Air purification filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03259732A JP3074844B2 (en) | 1991-09-10 | 1991-09-10 | Air purification filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0568832A true JPH0568832A (en) | 1993-03-23 |
| JP3074844B2 JP3074844B2 (en) | 2000-08-07 |
Family
ID=17338179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03259732A Expired - Fee Related JP3074844B2 (en) | 1991-09-10 | 1991-09-10 | Air purification filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3074844B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0867217A2 (en) * | 1997-03-26 | 1998-09-30 | Nichias Corporation | Organic solvent gas adsorption element |
| US6273938B1 (en) | 1999-08-13 | 2001-08-14 | 3M Innovative Properties Company | Channel flow filter |
| JPWO2005037334A1 (en) * | 2003-10-20 | 2006-12-28 | 住江織物株式会社 | Deodorant filter |
-
1991
- 1991-09-10 JP JP03259732A patent/JP3074844B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0867217A2 (en) * | 1997-03-26 | 1998-09-30 | Nichias Corporation | Organic solvent gas adsorption element |
| EP0867217A3 (en) * | 1997-03-26 | 1999-01-20 | Nichias Corporation | Organic solvent gas adsorption element |
| US6273938B1 (en) | 1999-08-13 | 2001-08-14 | 3M Innovative Properties Company | Channel flow filter |
| JPWO2005037334A1 (en) * | 2003-10-20 | 2006-12-28 | 住江織物株式会社 | Deodorant filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3074844B2 (en) | 2000-08-07 |
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