JPS581611B2 - dehumidification element - Google Patents
dehumidification elementInfo
- Publication number
- JPS581611B2 JPS581611B2 JP52037785A JP3778577A JPS581611B2 JP S581611 B2 JPS581611 B2 JP S581611B2 JP 52037785 A JP52037785 A JP 52037785A JP 3778577 A JP3778577 A JP 3778577A JP S581611 B2 JPS581611 B2 JP S581611B2
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- activated carbon
- mixed
- pulp
- sheet
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1423—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1032—Desiccant wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1048—Geometric details
Description
【発明の詳細な説明】
従来、除湿用素子として、アスベスト繊維等からなるシ
ートからハニカム構造体を造り、これに塩化リチウムの
ごとき湿分を吸収する材料を充填させたものが知られて
いる。DETAILED DESCRIPTION OF THE INVENTION Conventionally, as a dehumidification element, a honeycomb structure made of a sheet made of asbestos fibers or the like and filled with a moisture absorbing material such as lithium chloride is known.
この場合アスベスト繊維のシートからなる上記構造体を
５００℃迄の高温で処理してから塩化リチウムなどの吸
湿性材料を有利に充填させる方法が提案されている。In this case, it has been proposed to treat the above-mentioned structures, which consist of sheets of asbestos fibers, at high temperatures of up to 500 DEG C. and then advantageously fill them with a hygroscopic material such as lithium chloride.
ところで、本発明者らは、吸着能に優れた活性炭素繊維
を主とする繊維からなる後述するがごとき混合シートは
、該水溶性吸湿性塩類の充填が、極めて簡便にかつ効率
良く行い得る担体となることを見い出し、本発明に至っ
たのである。By the way, the present inventors have discovered that a mixed sheet as described below, which is made of fibers mainly composed of activated carbon fibers with excellent adsorption ability, is a carrier that can be filled with water-soluble hygroscopic salts extremely easily and efficiently. They have discovered that this is the case, and have arrived at the present invention.
本発明はベンゼン平衡吸着量３００■／ｇ以上の活性炭
素繊維を含有するシート材料で蜂の巣型連続通気路を形
成した構造体に吸湿性塩類を担持せしめた除湿素子であ
る。The present invention is a dehumidifying element in which hygroscopic salts are supported on a structure in which a honeycomb-shaped continuous air passage is formed using a sheet material containing activated carbon fibers having an equilibrium adsorption amount of benzene of 300 .mu./g or more.
本発明において用いる活性炭素繊維は、ベンゼン平衡吸
着量３００ｍｇ／ｇ以上という特性を有するもので、下
記に例示する原料繊維を焼成・賦活したものである。The activated carbon fiber used in the present invention has a benzene equilibrium adsorption amount of 300 mg/g or more, and is obtained by firing and activating the raw material fibers listed below.
例えば木綿、麻、ラミー等の天−然セルローズ繊維、木
材、竹、リンター等から得ラレるパルプ繊維、ビスコー
スレーヨン、ポリノジツク、銅アンモニアレーヨン等の
再生セルローズ繊維、及びポリビニルアルコール系繊維
、アクリル系繊維、ポリアミド系繊維、フェノール樹脂
繊維、リグニン繊維、ピッチ繊維等の原料繊維に、必要
に応じて耐炎化剤を含有させた後に、適当な雰囲気中４
００℃以下の温度で熱処理を施し、さらに５００℃以上
の温度で炭化・賦活するとと忙よって製造する。For example, natural cellulose fibers such as cotton, linen, and ramie; pulp fibers obtained from wood, bamboo, and linters; recycled cellulose fibers such as viscose rayon, polynosik, and copper ammonia rayon; polyvinyl alcohol fibers; and acrylic fibers. After adding a flame retardant to raw material fibers such as fibers, polyamide fibers, phenol resin fibers, lignin fibers, pitch fibers, etc. as necessary, 4.
Heat treatment is performed at a temperature of 00°C or lower, followed by carbonization and activation at a temperature of 500°C or higher.
炭化・賦活処理は雰囲気中に水蒸気、二酸化炭素、アン
モニア等を１０〜７０容量％含有させた状態で５００℃
以上に加熱することによって行われる。Carbonization/activation treatment is carried out at 500°C in an atmosphere containing 10 to 70% by volume of water vapor, carbon dioxide, ammonia, etc.
This is done by heating to a higher temperature.
この場合に適当な賦活剤を含有させても良い。In this case, a suitable activator may be included.
本発明に用いる活性炭素繊維は、ベンゼン平衡吸着量３
００■／ｇ以上という特性を有することが必要であり、
これ以下のものでは、目的としている吸着性塩類の混合
シートへの充填促進の効果が充分でない。The activated carbon fiber used in the present invention has a benzene equilibrium adsorption amount of 3
It is necessary to have the property of 00■/g or more,
If it is less than this, the intended effect of promoting the filling of adsorbent salts into the mixed sheet will not be sufficient.
また該活性炭素繊維の全細孔容積が０．１ｃｍ２／ｇ以
上であり、かつ半径１００Ａ°以下の細孔が全細孔容積
に対して７０容量％以上であることが更に好ましい結果
を与える。Further, it is preferable that the activated carbon fiber has a total pore volume of 0.1 cm 2 /g or more, and that pores with a radius of 100 A° or less account for 70% by volume or more of the total pore volume.
本発明の活性炭素繊維を含有するシートにおいて、活性
炭素繊維以外に該活性炭素繊維とのからみ合いによって
混合シートに強度を持たし得る短繊維バルブが混合する
ことが出来る。In the sheet containing activated carbon fibers of the present invention, short fiber bulbs can be mixed in addition to the activated carbon fibers, which can provide strength to the mixed sheet by intertwining with the activated carbon fibers.
下記に例示する様な、ある温度領域での加熱によって部
分的に融解しうる熱可塑性高分子からなる短繊維パルプ
を含むことがより好ましい。It is more preferable to include short fiber pulp made of a thermoplastic polymer that can be partially melted by heating in a certain temperature range, as exemplified below.
このようなパルプとしては、例えばポリエチレン、ポリ
プロピレン、ポリアクリロニトリル系、ポリビニルアル
コール系などの短繊維パルプが挙げられる。Examples of such pulp include short fiber pulps such as polyethylene, polypropylene, polyacrylonitrile, and polyvinyl alcohol.
活性炭素繊維の混合割合は、３０〜９０重量％であるこ
とが好ましい。The mixing ratio of activated carbon fibers is preferably 30 to 90% by weight.
活性炭素繊維の含有率が２５重量％以下であると、得ら
れる混合シートの吸着性が小さくなりすぎ、目的とする
効率の良い吸湿性塩類の混合シートへの充填が困難とな
る。If the content of activated carbon fibers is less than 25% by weight, the adsorption of the resulting mixed sheet becomes too low, making it difficult to efficiently fill the mixed sheet with hygroscopic salts.
一方、９５重量％以上であると、得られる混合シートの
強度が低下する。On the other hand, if the content is 95% by weight or more, the strength of the resulting mixed sheet decreases.
なお該混合シートにはガラス繊維、木材パルプなどの非
熱可塑性の短繊維パルプを含むこともできる。Note that the mixed sheet may also contain non-thermoplastic short fiber pulp such as glass fiber and wood pulp.
混合シートを得るには、通常の抄紙方法が適用される。To obtain the mixed sheet, normal papermaking methods are applied.
すなわち湿式で抄紙する場合は、活性炭素繊維と混合用
繊維及び必要に応じて少量の他の増粘用の添加剤を加え
た紙料を通常の抄紙金鋼、例えば円網、長網で沖別した
後、ヤンキー型あるいは多筒式乾燥機のようなもので乾
燥すれがよい。In other words, when making paper using a wet method, paper stock containing activated carbon fibers, mixed fibers, and a small amount of other thickening additives as needed is processed using a conventional paper making steel, such as a circular screen or fourdrinier. After separating, dry it in a Yankee type or multi-barrel dryer.
上記したがごとき熱可塑性繊維が混合されている場合に
は、該熱可塑性繊維が部分的に融解する温度でローラー
等によリ加熱処理することによって、湿潤時の強度がさ
らに高い混合シートが得られる。When thermoplastic fibers such as those described above are mixed, a mixed sheet with even higher wet strength can be obtained by heat-treating with a roller or the like at a temperature that partially melts the thermoplastic fibers. It will be done.
一方乾燥式で抄紙する方法も適用し得る。On the other hand, a method of paper making using a dry method may also be applied.
この場合においても、熱可塑性繊維が混合されている場
合には、抄紙後上述した加熱による部分融解処理を行う
ことが好ましい。Even in this case, if thermoplastic fibers are mixed, it is preferable to perform the above-mentioned partial melting treatment by heating after papermaking.
この熱可塑性繊維の部分融解処理温度は、混合する該繊
維によってその好適な温度領域が異なるが、例えばポリ
アクリロニトリル系パルプでは１２０〜１６０℃、ポリ
プロピレンパルプでは１２０〜１６０℃、ポリエ％レン
パルプでは８０〜１２０℃、ポリビニルアルコール系パ
ルプでは７０〜１１０℃である。The preferable temperature range for the partial melting treatment of thermoplastic fibers varies depending on the fibers to be mixed, but for example, polyacrylonitrile pulp is 120-160°C, polypropylene pulp is 120-160°C, and polyethylene pulp is 80-160°C. 120°C, and 70 to 110°C for polyvinyl alcohol pulp.
本発明の蜂の巣型連続通気路を形成した構造体の代表的
なものは上記したシートから波形シートと平面シートか
らなる段ポールを製造し、これを複数枚重ね合せるか、
或いは円筒状に重ねて巻き上げたもの（第１図）である
。A typical structure of the present invention in which a honeycomb-shaped continuous air passage is formed is produced by manufacturing corrugated poles made of corrugated sheets and flat sheets from the above-mentioned sheets, and stacking a plurality of these sheets, or
Alternatively, it may be rolled up into a cylindrical shape (Fig. 1).
本発明に用いる蜂の巣型構造体はこの他例えば第２図に
示す様に波形状に代って円筒体２２を並べて接合したり
、或は第３図のように円筒または多角筒体を多数集束す
る様に構成したものがある。In addition, the honeycomb structure used in the present invention may be made by joining cylindrical bodies 22 in place of the wave shape as shown in FIG. 2, or by converging a large number of cylinders or polygonal cylindrical bodies as shown in FIG. There is something configured to do this.
また第４図に示す様に凹凸シートを互に組合せて構成し
ハニカム構造体とすることもできる。Further, as shown in FIG. 4, uneven sheets may be combined with each other to form a honeycomb structure.
必要に応じて上記構造体の両端を通常の方法で樹脂加工
し補強することが行われる。If necessary, both ends of the structure are treated with resin and reinforced using a conventional method.
次に吸着材料例えば塩化リチウム、臭化リチウム、塩化
カルシウムなどの水溶液中に上記蜂の巣型構造体を浸漬
する。Next, the honeycomb structure is immersed in an aqueous solution of an adsorption material such as lithium chloride, lithium bromide, calcium chloride, or the like.
あるいはこれらの水溶液を上記構造体中を通して流して
も良い。Alternatively, these aqueous solutions may be passed through the structure.
接触時間は、数分以下といった極めて短時間で目的とす
る吸湿性塩類の充填が完了し得る。Filling with the desired hygroscopic salts can be completed within a very short contact time of several minutes or less.
次に、例えば遠心脱水等で、蜂の巣型構造体を構成して
いる混合シートの表面に乗っている余剰の塩水溶液を除
去する。Next, excess salt aqueous solution on the surface of the mixed sheet constituting the honeycomb structure is removed by, for example, centrifugal dehydration.
これらの操作により該塩類の固体物の混合シート上への
沈着が全くない目的とする除湿用素子が得られる。By these operations, the desired dehumidifying element can be obtained in which no solid salts are deposited on the mixed sheet.
本発明のハニカム構造体へ塩化リチウムを充填する場合
、同一操作条件で有機質繊維１３％を含有してなる通常
のアスベスト紙に、そのまま塩化リチウムを充填する場
合にくらべて、前者は後者に対して、シートの重量当り
充填される塩化リチウム量は、３〜５倍に達することが
判明した。When filling the honeycomb structure of the present invention with lithium chloride, the former is more effective than the latter when compared to the case where normal asbestos paper containing 13% organic fiber is directly filled with lithium chloride under the same operating conditions. It was found that the amount of lithium chloride filled per weight of the sheet reached 3 to 5 times.
かくして該混合シートの重量当り１０〜７５重量％の水
溶性吸湿性塩類を充填した除湿用素子が得られる。In this way, a dehumidifying element filled with 10 to 75% by weight of water-soluble hygroscopic salts based on the weight of the mixed sheet is obtained.
本素子は、例えば再生式除湿装置用の素子として使うこ
とができる。This element can be used, for example, as an element for a regenerative dehumidifier.
この場合除湿されるべき空気のごとき流体と、本素子に
よって吸収された水分を除去して除湿能を再生するに役
立つ加熱された空気のごとき流体とのそれぞれに対する
入口及び出口を備えたケーンングを有し、交換体は回転
し得る周知のごとき装置に組込まれる。In this case, a caning is provided with an inlet and an outlet for a fluid, such as air, to be dehumidified and a fluid, such as heated air, which serves to remove moisture absorbed by the device and regenerate its dehumidifying capacity. However, the exchanger is incorporated into a known rotatable device.
この場合本発明の素子は、除湿帯域と再生帯域を移動す
る。In this case, the element of the invention moves between the dehumidification zone and the regeneration zone.
以下本発明に用いる用語について説明する。The terms used in the present invention will be explained below.
ベンゼン平衡吸着量 ＪＩＳＫ−１４１２に従って平衡吸着量を測定する。Benzene equilibrium adsorption amount The equilibrium adsorption amount is measured according to JISK-1412.
ＪＩＳではベンゼン吸着力（４）となっているが、表現
を変えてｍｇ／ｇで表示する。JIS specifies benzene adsorption power (4), but the expression is changed to express it in mg/g.
ただし、試料は０．１〜０．２ｇを用いる。However, 0.1 to 0.2 g of the sample is used.
実施例
セルローズ繊維を前駆体とする活性炭素繊維（ベンゼン
平衡吸着量：４５０■／ｇ）７０部、ポリアクリロニト
リル系パルプ３０部から成る紙料液よリ、通常用いられ
る抄紙機で抄紙目付５０ｇ／ｍ２の混抄紙を抄造し、次
に加熱ローラーにより１４０℃で、ポリアクリロニトリ
ル系パルプを部分融解させて、目的とする混合シートを
得た。EXAMPLE A paper stock liquid consisting of 70 parts of activated carbon fiber (benzene equilibrium adsorption amount: 450 ■/g) using cellulose fiber as a precursor and 30 parts of polyacrylonitrile pulp was made using a conventional paper machine with a paper weight of 50 g/g. A mixed paper of m2 was made, and then the polyacrylonitrile pulp was partially melted at 140° C. using a heating roller to obtain the desired mixed sheet.
これを通常の片段ボール製造装置により、第５図のごと
き（ａ＝３．３ｍｍ、ｂ＝１．４ｍｍ）の片段ボールに
した。This was made into a single corrugated board as shown in FIG. 5 (a=3.3 mm, b=1.4 mm) using a normal single corrugated board manufacturing apparatus.
次にこの片段ボールを、直径２０ｍｍの芯の上に円筒状
にまきあげ、直径２００ｍｍ，長さ２００ｍｍの形状に
した。Next, this single corrugated cardboard was rolled up into a cylindrical shape on a core having a diameter of 20 mm to form a shape having a diameter of 200 mm and a length of 200 mm.
この場合、片ボールの波頂部と、平板部と接する部分に
は、酢酸ビニル系の接着剤で接着・固定させた。In this case, the wave crest of the single ball and the portion in contact with the flat plate were adhered and fixed with a vinyl acetate adhesive.
次に、塩化リチウム４０％を含む水溶液中に、２分間浸
漬し、しかる後ひきあげ遠心力脱水して、混合シートの
表面に乗っている余剰の塩化リチウム水溶液をのぞいた
。Next, it was immersed for 2 minutes in an aqueous solution containing 40% lithium chloride, and then pulled up and dehydrated by centrifugal force to remove the excess lithium chloride aqueous solution on the surface of the mixed sheet.
かくして得た交換体を絶乾状態にして秤量し、塩化リチ
ウムが混合シートの重量に対して７２％充填されたこと
を確認した。The thus obtained exchanger was kept in an absolutely dry state and weighed, and it was confirmed that 72% of lithium chloride was filled with respect to the weight of the mixed sheet.
本素子を、絶体湿度が６ｇｒ／Ｋｇ空気の雰囲気中に放
置したところ、素子の重量当り８３％の吸湿率を示した
。When this device was left in an atmosphere with an absolute humidity of 6 gr/Kg air, it exhibited a moisture absorption rate of 83% based on the weight of the device.
第１図は段ボールを巻きあげた本発明使用する蜂の巣型
構造体を示す。
第２図は他の構造体の巻きあげを示す図である。
第３図および第４図はハニカム構造体への断面図である
。
第５図は実施例において使用した片段ボールを示す。FIG. 1 shows the honeycomb structure used in the present invention, which is made of rolled up cardboard. FIG. 2 is a diagram showing the winding up of another structure. 3 and 4 are cross-sectional views of the honeycomb structure. FIG. 5 shows a single corrugated board used in the example.
Claims (1)
繊維を含有するシート材料で蜂の巣型連続通気路を形成
した構造体に吸湿性塩類を担持せしめた除湿素子。1. A dehumidifying element in which hygroscopic salts are supported on a structure in which a honeycomb-shaped continuous air passage is formed using a sheet material containing activated carbon fibers with an equilibrium adsorption amount of benzene of 300 mm/g or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52037785A JPS581611B2 (en) | 1977-04-01 | 1977-04-01 | dehumidification element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52037785A JPS581611B2 (en) | 1977-04-01 | 1977-04-01 | dehumidification element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53123547A JPS53123547A (en) | 1978-10-28 |
| JPS581611B2 true JPS581611B2 (en) | 1983-01-12 |
Family
ID=12507132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52037785A Expired JPS581611B2 (en) | 1977-04-01 | 1977-04-01 | dehumidification element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581611B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55159827A (en) * | 1979-05-31 | 1980-12-12 | Daikin Ind Ltd | Dehumidifying apparatus |
| JPS5614622U (en) * | 1979-07-14 | 1981-02-07 | ||
| JPS5919727B2 (en) * | 1981-08-04 | 1984-05-08 | ダイキン工業株式会社 | Manufacturing method of activated carbon adsorption unit |
| JPS58219920A (en) * | 1982-06-16 | 1983-12-21 | Toho Rayon Co Ltd | Hygroscopic material |
| JPS5932921A (en) * | 1982-08-17 | 1984-02-22 | Toyobo Co Ltd | Activated carbon fiber used in dehumidification and preparation thereof |
| JPS58108130U (en) * | 1982-12-10 | 1983-07-23 | 株式会社エイチ・イ−・アイ | Exchanger for heat and/or moisture |
| US5776385A (en) * | 1994-04-15 | 1998-07-07 | Corning Incorporated | Method of making activated carbon composites from supported crosslinkable resins |
| WO1997022408A1 (en) * | 1995-12-20 | 1997-06-26 | Remi Cornwall | A versatile physical phase changing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098485A (en) * | 1973-12-29 | 1975-08-05 | ||
| JPS50112287A (en) * | 1974-02-14 | 1975-09-03 |
-
1977
- 1977-04-01 JP JP52037785A patent/JPS581611B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098485A (en) * | 1973-12-29 | 1975-08-05 | ||
| JPS50112287A (en) * | 1974-02-14 | 1975-09-03 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53123547A (en) | 1978-10-28 |
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