JPH06323A - Method for producing moisture exchange element - Google Patents
Method for producing moisture exchange elementInfo
- Publication number
- JPH06323A JPH06323A JP4129045A JP12904592A JPH06323A JP H06323 A JPH06323 A JP H06323A JP 4129045 A JP4129045 A JP 4129045A JP 12904592 A JP12904592 A JP 12904592A JP H06323 A JPH06323 A JP H06323A
- Authority
- JP
- Japan
- Prior art keywords
- impregnating
- strip
- weight
- acid
- moisture exchange
- 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
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
- F24F2203/1036—Details
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は湿気交換素子の製造法に
関する。詳しくは、表面に固体吸着剤が沈着しているハ
ニカム型湿気交換素子の製造法に関する。FIELD OF THE INVENTION The present invention relates to a method of manufacturing a moisture exchange element. More specifically, it relates to a method for manufacturing a honeycomb type moisture exchange element in which a solid adsorbent is deposited on the surface.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】固体
乾燥剤による空気または湿気ガス混合物の除湿法とし
て、従来から静態乾燥法と動態乾燥法がよく知られてい
る。そのうち、静態乾燥法は、湿気を硫酸カルシウム、
水酸化カリウム、塩化カリウムなどの吸湿乾燥剤と接触
させることにより除湿する方法である。この静態乾燥法
は固体乾燥剤を吸湿後その場で再生できないので、長時
間行なうばあい、満足できる吸湿能を確保できない。し
たがって、湿気の大量循環による除湿には適しない。他
方、動態乾燥法は吸湿と吸着剤の再生とを同時にそれぞ
れ行なう連続方法であり、普通、たとえば、シリカゲ
ル、モレキュラーシーブ、アルミナなどを使用し、二塔
式固定床除湿機または回転式ハニカム輪除湿機で行な
う。二塔式固定床除湿機には主に、それぞれ吸着剤粒子
を充填している二つの塔と、湿気を第１塔から第２塔へ
送ると共に再生熱空気を第２塔から第１塔へ送る弁とが
ある。この型の除湿機には、固定粒子床の大きな圧力傾
斜による顕著なエネルギー消耗と、除湿された空気の湿
度変動などの欠点がある。一方、回転式ハニカム輪除湿
機には長方向通路を有する円筒状マトリックスよりなる
低速回転輪と、マトリックスの表面に沈着する吸着剤と
があり、湿気と再生熱空気をそれぞれ同時に回転輪の二
つの異なる部分に導入し、連続除湿工程中に吸着剤を定
期的に脱吸着させる。この回転式ハニカム輪除湿機には
つぎのような利点がある。すなわち、輪を通しての圧力
傾斜が低く、単位容積毎の吸収面積が増加し、吸収／脱
吸着が速く有効である。その結果として、エネルギー消
耗が低く、除湿効能が増大し、二塔式固定床除湿機に比
べ操作も容易である。2. Description of the Related Art As a method of dehumidifying an air or a moisture gas mixture with a solid desiccant, a static drying method and a dynamic drying method have been well known. Among them, the static drying method removes moisture from calcium sulfate,
It is a method of dehumidifying by bringing it into contact with a hygroscopic desiccant such as potassium hydroxide or potassium chloride. Since this static drying method cannot regenerate the solid desiccant in situ after absorbing moisture, it cannot secure a satisfactory moisture absorbing ability when it is carried out for a long time. Therefore, it is not suitable for dehumidification by mass circulation of moisture. On the other hand, the dynamic drying method is a continuous method in which moisture absorption and regeneration of the adsorbent are carried out simultaneously, and usually, for example, silica gel, molecular sieve, alumina, etc. are used, and a two-column fixed bed dehumidifier or a rotary honeycomb wheel dehumidifier is used. Machine. The two tower type fixed bed dehumidifier is mainly composed of two towers, which are respectively filled with adsorbent particles, and moisture is sent from the first tower to the second tower, and regenerated hot air is sent from the second tower to the first tower. There is a valve to send. This type of dehumidifier has the drawbacks of significant energy consumption due to the large pressure gradient of the fixed particle bed and humidity fluctuations of the dehumidified air. On the other hand, the rotary honeycomb wheel dehumidifier has a low-speed rotating wheel composed of a cylindrical matrix having a longitudinal passage, and an adsorbent that deposits on the surface of the matrix. Introduced into different parts to periodically desorb the adsorbent during the continuous dehumidification process. This rotary honeycomb wheel dehumidifier has the following advantages. That is, the pressure gradient through the wheel is low, the absorption area per unit volume is increased, and absorption / desorption is fast and effective. As a result, the energy consumption is low, the dehumidification efficiency is increased, and the operation is easier than that of the double tower fixed bed dehumidifier.
【０００３】上記回転式除湿機に使われる好ましい湿気
交換素子（湿気交換ハニカム輪）として、熱容量が小さ
く、かつ重量が軽く、すぐれた機械特性と高い吸湿能力
を有するものが望まれている。As a preferable moisture exchange element (moisture exchange honeycomb wheel) used in the above rotary dehumidifier, one having a small heat capacity, a light weight, excellent mechanical characteristics and a high moisture absorption capacity is desired.
【０００４】従来、湿気交換素子の製造法としてはつぎ
のような方法が知られている。Conventionally, the following method has been known as a method for manufacturing a moisture exchange element.
【０００５】特開昭５５−１４２５２２号公報に公開さ
れた湿気交換素子の製造法は、塩化カルシウム水溶液な
どの吸湿剤溶液に紙などの平面状通気性シートを含浸さ
せ、乾燥したのち、波形シートに糊付け積層後、所定寸
法に裁断し、補強剤を含浸し交互に積層し、ブロック状
湿気交換素子を形成する方法で、波形シートは吸湿剤溶
液に含浸させないので、強度を損なうことがない。The method of manufacturing a moisture exchange element disclosed in Japanese Patent Laid-Open No. 55-142522 is such that a flat air-permeable sheet such as paper is impregnated with a solution of a hygroscopic agent such as an aqueous solution of calcium chloride, and the corrugated sheet is dried. In this method, the corrugated sheet is not impregnated with the hygroscopic agent solution, and the strength is not impaired by a method of forming a block-shaped moisture exchange element by cutting the material into a predetermined size, cutting it to a predetermined size, impregnating it with a reinforcing agent and alternately laminating it.
【０００６】特開昭６０−１７５５２１号公報に公開さ
れた小透孔を有する除湿交換素子の製造法は、有機繊維
と無機繊維よりなる紙を多数の小透孔を有する素子の形
状に成形し、えられた成形体を酸素の不充分な供給下に
加熱して成形体中の有機成分を炭化し、該炭化工程前ま
たは後に成形体に無機質補強剤を含浸し、最後に吸湿剤
を含浸する方法である。A method of manufacturing a dehumidifying / exchange element having small through holes disclosed in Japanese Patent Laid-Open No. 175521/1985 is a method in which a paper made of organic fibers and inorganic fibers is molded into a shape of an element having a large number of small holes. , The obtained molded body is heated under insufficient supply of oxygen to carbonize the organic components in the molded body, the molded body is impregnated with an inorganic reinforcing agent before or after the carbonization step, and finally with a hygroscopic agent. Is the way to do it.
【０００７】しかしながら、これらの方法はいずれも操
作が繁雑で、特開昭５５−１４２５２２号公報に記載さ
れた方法は含浸液が塩化カルシウム、塩化リチウムであ
るため、吸湿後、水和物となり再生が容易でなく、ま
た、特開昭６０−１７５５２１号公報に記載された方法
は、繊維成形体中の有機成分を酸素が不充分な条件下で
加熱して炭化させることが特徴であり、含浸液について
は何らの改良も加えられていない。However, all of these methods are complicated in operation. In the method described in JP-A-55-142522, since the impregnating liquid is calcium chloride or lithium chloride, it becomes a hydrate after moisture absorption and is regenerated. Is not easy, and the method described in JP-A-60-175521 is characterized in that the organic component in the fiber molding is heated and carbonized under the condition of insufficient oxygen. No improvement has been added to the liquid.
【０００８】特開昭６３−１７５６１９号公報に公開さ
れた湿気交換素子の製造法は、セラミックス繊維などの
無機繊維とパルプよりなる紙を水ガラスに含浸し、紙を
半乾燥したのち、一対のローラにてコルゲート加工して
波形紙をえ、これを酸に浸漬してシリカヒドロゲルを生
成せしめ、水洗乾燥する。この波形紙の山に糊を付け、
直ちにシリカヒドロゲル付着平面紙に沿ってローラで巻
き上げ、湿気交換ハニカム輪を形成する方法である。In the method of manufacturing a moisture exchange element disclosed in Japanese Patent Laid-Open No. 63-175619, water glass is impregnated with paper made of inorganic fibers such as ceramic fibers and pulp, and the paper is semi-dried, and then a pair of Corrugated paper is corrugated with a roller to obtain corrugated paper, which is dipped in acid to form silica hydrogel, washed with water and dried. Put glue on this pile of corrugated paper,
It is a method of immediately rolling up with a roller along a silica hydrogel-coated flat paper to form a moisture exchange honeycomb ring.
【０００９】前記特開昭６３−１７５６１９号公報の方
法にはその操作の繁雑さに加えて若干の問題がある。そ
れは主に水ガラスの使用によるものである。たとえば、
水ガラスはナトリウムイオンの含有量が高いため、ゲル
化速度が不当に速すぎる。結果的に、水ガラス浴の含浸
寿命が短く、水ガラス浴を一定期間使用すると含浸紙の
性質が変わる。このようにゲル化速度が速すぎるため、
形成されたシリカヒドロゲル吸湿剤の平均孔径は約20オ
ングストロームとなる。このような平均孔径の吸湿剤は
満足な吸湿能力がえられず、頻繁に脱吸着を行なうべき
で、高湿気の吸湿には適しない。またゲル化速度が速す
ぎるため、含浸紙を波形に成形するに適するまで半乾燥
することも困難である。他方、水ガラスのｐＨは約11.5
であるから、酸接触ゲル化反応に多量の酸を必要とす
る。なお、酸接触ゲル化反応にて副産物として生成した
ナトリウム塩は紙に沈着し、吸湿紙の重量を増加させる
ばかりか、吸湿剤の孔を塞ぐので、洗浄工程が不可欠で
ある。それでもなお洗浄後には紙にナトリウム塩が残
る。残留したナトリウム塩は吸着／脱吸着操作にて次々
と移動し、除湿機の寿命に悪影響を及ぼす。このほか、
紙に形成したシリカヒドロゲルは洗浄工程の際ナトリウ
ム塩と共に洗い落とされる。とくに水洗は時間と労働力
がかかり、大量の水と煩雑な廃水処理を必要とする。The method disclosed in JP-A-63-175619 has some problems in addition to the complicated operation. It is mainly due to the use of water glass. For example,
Due to the high content of sodium ions in water glass, the gelation rate is unduly fast. As a result, the impregnation life of the water glass bath is short and the properties of the impregnated paper change when the water glass bath is used for a certain period of time. Since the gelation speed is too fast,
The average pore size of the silica hydrogel moisture absorbent formed is about 20 Å. A hygroscopic agent having such an average pore size does not have a satisfactory hygroscopic ability, must be frequently desorbed, and is not suitable for high moisture absorption. Further, since the gelation speed is too high, it is difficult to semi-dry the impregnated paper until it is suitable for forming into a corrugated shape. On the other hand, the pH of water glass is about 11.5.
Therefore, a large amount of acid is required for the acid-catalyzed gelation reaction. The sodium salt produced as a by-product in the acid-catalyzed gelation reaction deposits on the paper and not only increases the weight of the absorbent paper, but also closes the pores of the absorbent, so a washing step is indispensable. Nevertheless, the sodium salt remains on the paper after washing. The remaining sodium salts move one after another during the adsorption / desorption operation, which adversely affects the life of the dehumidifier. other than this,
The silica hydrogel formed on the paper is washed off with the sodium salt during the washing process. In particular, washing with water takes time and labor, and requires a large amount of water and complicated wastewater treatment.
【００１０】本発明は、上記欠点がなく、かつ従来の技
術より工程数が少なく、操作が容易であり、基材に多量
の吸湿剤を沈着させ、この吸湿剤の吸湿能力を増強した
湿気交換素子の製造法を提供することを目的とする。The present invention does not have the above-mentioned drawbacks, has a smaller number of steps than the prior art, is easy to operate, deposits a large amount of a hygroscopic agent on a substrate, and enhances the hygroscopic capacity of the hygroscopic agent. An object is to provide a method for manufacturing a device.
【００１１】[0011]
【課題を解決するための手段】上記本発明の目的を達成
するため、本発明者らは、有機または無機の繊維からな
る基材を、コロイドシリカ、酸および金属カチオンを含
有する含浸水溶液に含浸し、乾燥、ゲル化する湿気交換
素子の製造法を見出した。In order to achieve the above object of the present invention, the present inventors impregnated a base material composed of organic or inorganic fibers into an impregnation aqueous solution containing colloidal silica, an acid and a metal cation. Then, a method for producing a moisture exchange element which is dried and gelled has been found.
【００１２】すなわち、本発明は、有機または無機の繊
維からなる基材を、５〜20重量％のコロイドシリカ、0.
25〜2.5 重量％の水溶性金属塩および含浸液のｐＨを５
〜９に調節するのに充分な量の酸よりなる含浸水溶液に
含浸したのち、基材に沈着している含浸液を加熱下乾燥
しゲル化させることを特徴とする湿気交換素子の製造法
に関する。That is, according to the present invention, a base material made of organic or inorganic fibers is added to 5 to 20% by weight of colloidal silica.
The pH of the water-soluble metal salt of 25 to 2.5% by weight and the impregnating solution should be 5
A method for producing a moisture exchange element, which comprises impregnating an impregnating aqueous solution containing an acid in an amount sufficient to adjust to 9 to 9 and then drying and gelling the impregnating solution deposited on the substrate under heating. .
【００１３】なお、この素子はハニカム構造であること
が好ましい。The device preferably has a honeycomb structure.
【００１４】[0014]
【実施例】本製造法に使われる繊維基材は密度が0.5g/c
m 以下の多孔性材料であり、好ましくは、セラミック繊
維、カーボン繊維、ガラス繊維、重合体繊維などで、織
布または不織布のいずれでもよい。基材は厚さ0.10〜0.
60mmの平面条か、この平面条より作成された波高0.4 〜
2.0mm 、波長0.4 〜4.0mm の波形条か、またはこの平面
条と波形条とを一つ毎に積層してなるハニカムブロック
体または輪でもよい。なお、ここでいう「条」とは、長
いテープ状（ストリップ（strip ））を意味する。[Example] The fiber substrate used in this production method has a density of 0.5 g / c.
A porous material having a size of m or less, preferably a ceramic fiber, a carbon fiber, a glass fiber, a polymer fiber or the like, which may be a woven cloth or a non-woven cloth. The base material has a thickness of 0.10-0.
60mm flat strip or wave height 0.4 made from this flat strip ~
It may be a corrugated strip with a wavelength of 2.0 mm and a wavelength of 0.4 to 4.0 mm, or a honeycomb block body or ring formed by laminating the flat strip and the corrugated strip one by one. The term "strip" as used herein means a long tape shape (strip).
【００１５】波形条およびハニカムブロック体または輪
は、公知のいかなる適する方法で作成することができ
る。好ましくは、平面条を一対の特定ローラまたはギヤ
ーローラ／歯状板を通して、直ぐ波面にコロイドシリカ
接着水溶液を塗り、80〜120 ℃にて40〜90分加熱乾燥し
て波形を固定し、波形条を形成する。この波形条と平面
条の積層は、まず平面条を接着液に含浸したのち、波形
条の上に置き、積層条を80〜120 ℃にて40〜90分加熱す
ることにより行なわれる。接着液中のコロイドシリカの
濃度は５〜25重量％、好ましくは８〜15重量％である。
この濃度が高すぎると、コロイドシリカが平面条と波形
条中の孔を塞ぎ、これらの条で形成した湿気交換素子に
おいて基材に対する吸湿剤の比が低下する。また、この
濃度が低すぎると、波形条およびハニカムブロック体ま
たは輪の機械強度が不十分となる。好ましい具体例にお
ける湿気交換ハニカム輪の製造法は、含浸液を接着液と
して波形条を作成し、平面条を含浸液に含浸し、この含
浸条に沿って波形条を巻き上げ、250 ℃にて３時間加熱
する。この方法では１種類のコロイドシリカ溶液しか使
わないので、湿気交換素子は全体の構造が均一で、波形
条と平面条との間の付着が強い。The corrugations and honeycomb blocks or rings can be made by any suitable known method. Preferably, the flat strip is passed through a pair of specific rollers or a gear roller / toothed plate, and immediately the corrugated silica adhesive aqueous solution is applied to the wave surface, and dried by heating at 80 to 120 ° C for 40 to 90 minutes to fix the corrugated strip. Form. The lamination of the corrugated strip and the flat strip is performed by first impregnating the flat strip with an adhesive solution, placing it on the corrugated strip, and heating the laminated strip at 80 to 120 ° C. for 40 to 90 minutes. The concentration of colloidal silica in the adhesive liquid is 5 to 25% by weight, preferably 8 to 15% by weight.
If this concentration is too high, the colloidal silica will block the pores in the flat and corrugated strips, reducing the ratio of hygroscopic agent to substrate in the moisture exchange element formed by these strips. If this concentration is too low, the mechanical strength of the corrugated strip and the honeycomb block body or ring will be insufficient. In a preferred embodiment, the method for manufacturing a moisture exchange honeycomb wheel is as follows. A corrugated strip is prepared by using an impregnating liquid as an adhesive liquid, a flat strip is impregnated with the impregnating liquid, the corrugated strip is wound up along the impregnating strip, and the corrugated strip is wound at 250 ° C. for 3 hours. Heat for hours. Since only one kind of colloidal silica solution is used in this method, the entire structure of the moisture exchange element is uniform and the adhesion between the corrugated strip and the flat strip is strong.
【００１６】本発明の方法に用いる金属塩は、水溶液に
溶解し、含浸基材に悪影響を及ぼさないものであれば、
いずれも含浸液の金属カチオンを提供するものとして用
いられる。好ましくは、無機塩、たとえばハーライド、
硝酸塩、水酸化物、硫酸塩などがあげられる。用いられ
る金属カチオンは、Ｌｉ、Ｃａ、Ａｌ、Ｍｇ、Ｎｉ、Ｆ
ｅ、Ｚｎ、Ｃｕなどのカチオンがあげられ、なかでもＬ
ｉ、Ｃａが好ましい。The metal salt used in the method of the present invention may be any one as long as it dissolves in an aqueous solution and does not adversely affect the impregnated substrate.
Both are used to provide the metal cations of the impregnating liquid. Preferably, an inorganic salt such as halide,
Examples thereof include nitrates, hydroxides and sulfates. The metal cations used are Li, Ca, Al, Mg, Ni, F
Examples include cations such as e, Zn, and Cu. Among them, L
i and Ca are preferable.
【００１７】また、本発明に用いる酸はたとえば硫酸、
硝酸、塩酸などの無機酸が好ましい。The acid used in the present invention is, for example, sulfuric acid,
Inorganic acids such as nitric acid and hydrochloric acid are preferred.
【００１８】本発明の方法において、含浸した基材に沈
着した含浸溶液の乾燥、ゲル化は含浸基材を100 〜400
℃にて40分から８時間加熱することにより実施される。In the method of the present invention, the impregnating solution deposited on the impregnated substrate is dried and gelled by applying 100-400 to the impregnated substrate.
It is carried out by heating at 40 ° C. for 40 minutes to 8 hours.
【００１９】本製造法ではコロイドシリカの含浸水溶液
を用いるが、これは水ガラスに比べナトリウムイオンの
含有量が顕著に低く、シリカのゲル化反応時にほとんど
ナトリウムイオンが生成しないので、水洗工程が不要で
ある。また、酸を加える前のｐＨは約9.0 であるので、
水ガラスに比べ、中和に要する酸の量は顕著に低い。か
つ、含浸溶液は適量の金属カチオンを含んでいるので、
室温で相当長時間安定なゾル−ゲル状態を維持すること
ができるうえ、当然、乾燥、ゲル化の加熱にて、金属カ
チオンは触媒としてゲル化反応が含浸溶液に発生するの
を促進する。また、本発明による湿気交換素子は水ガラ
スを用いる方法と比べ、基材に対する吸湿剤の比が高
く、しかもそこに沈着した吸湿剤の平均孔径は約60〜70
オングストロームである。したがって、本発明による湿
気交換素子は吸湿／脱着能力がすぐれたものである。好
ましい実施例においては、相対湿度80％で１グラムの吸
湿剤が水分を0.7 〜0.8 グラム吸収した。In this production method, an aqueous solution impregnated with colloidal silica is used, but the content of sodium ions is remarkably lower than that of water glass, and since sodium ions are hardly generated during the gelation reaction of silica, a water washing step is unnecessary. Is. Also, since the pH before adding acid is about 9.0,
The amount of acid required for neutralization is significantly lower than that of water glass. And since the impregnation solution contains an appropriate amount of metal cations,
In addition to being able to maintain a stable sol-gel state for a considerably long time at room temperature, naturally, upon heating for drying and gelation, metal cations act as catalysts to promote the gelation reaction to occur in the impregnating solution. Further, the moisture exchange element according to the present invention has a higher ratio of the hygroscopic agent to the substrate than the method using water glass, and the average pore diameter of the hygroscopic agent deposited therein is about 60 to 70.
Angstrom. Therefore, the moisture exchange element according to the present invention has excellent moisture absorption / desorption ability. In the preferred embodiment, 1 gram of the absorbent at 80% relative humidity absorbed 0.7 to 0.8 grams of water.
【００２０】つぎに実施例をあげて本発明をさらに詳細
に説明するが、本発明はもとよりかかる実施例のみに限
定されるものではない。なお、別に規定しない限り、全
ての部と％はそれぞれ重量部、重量％であり、平均孔径
はＢＥＴ窒素吸着法により、マイクロメリティック デ
ィジソルブ（Micromeritic Digisorb ）2600計器（マイ
クロメリティックス（Micromeritics ）社（米国）製）
にて測定した。また、除湿試験は20℃、79.5％相対湿度
にて行ない、湿気交換素子の特性と吸湿度は下記の定義
で表した： 吸湿剤沈着比(ADR)%＝｛（湿気交換素子の重量）−（繊
維基剤の重量）｝／（繊維基剤の重量) ×100 素子の吸湿度(MAE)%＝｛（素子吸湿後の重量）−（素子
吸湿前の重量）｝／（素子吸湿前の重量）×100 吸湿剤の吸湿度(MAA)%＝｛（素子吸湿後の重量）−（素
子吸湿前の重量）｝／｛（素子の重量）−（繊維基剤の
重量）｝×100 実施例１：ハニカム輪の製造 12.5kgの40％コロイドシリカ（ルドックス（Ludox ）SM
（デュポン（Dupont）社（米国）製）水溶液に37.5kgの
水を攪拌しながら加え、接着液（溶液Ａ）を作成した。
幅30cm、厚さ0.5mm のセラミック紙条（カオーウール株
式会社（Kaowool Inc.）製）425.1 ｇを歯状板上に置
き、歯状ローラで成形し、その波面上に溶液Ａを塗り、
100 ℃で１時間加熱し、波長0.6mm 、波高0.4mm の波形
条を454.9ｇえた。同じセラミック紙を溶液Ａに含浸
し、直ぐ波形条とともに巻き上げ、100 ℃で１時間加熱
した。えられたハニカム輪は重さ920.7 ｇで、直径が40
cmであった。Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to such examples as a matter of course. Unless otherwise specified, all parts and% are parts by weight and% by weight, respectively, and the average pore size is determined by the BET nitrogen adsorption method according to the Micromeritic Digisorb 2600 instrument (Micromeritics). (Made in USA)
It was measured at. Further, the dehumidification test was conducted at 20 ° C. and 79.5% relative humidity, and the characteristics and moisture absorption of the moisture exchange element were defined as follows: Moisturizer deposition ratio (ADR)% = {(weight of moisture exchange element) − (Weight of fiber base)} / (Weight of fiber base) x 100 Element moisture absorption (MAE)% = {(Weight after absorbing element)-(Weight before absorbing element)} / (Before absorbing element) Weight) x 100 Moisture absorption (MAA)% = {(weight after absorbing element)-(weight before absorbing element)} / {(weight of element)-(weight of fiber base)} x 100 Example 1: Manufacture of honeycomb rings 12.5 kg of 40% colloidal silica (Ludox SM)
An adhesive solution (solution A) was prepared by adding 37.5 kg of water to an aqueous solution (manufactured by Dupont (USA)) with stirring.
425.1 g of ceramic paper strip (made by Kaowool Inc.) having a width of 30 cm and a thickness of 0.5 mm is placed on the tooth plate and formed by the tooth roller, and the solution A is applied on the wave front thereof,
After heating at 100 ° C for 1 hour, 454.9 g of a corrugated strip having a wavelength of 0.6 mm and a wave height of 0.4 mm was obtained. The same ceramic paper was impregnated with solution A, immediately rolled up with corrugated strips and heated at 100 ° C. for 1 hour. The resulting honeycomb wheel weighs 920.7 g and has a diameter of 40.
It was cm.
【００２１】実施例２：含浸液の製造と吸湿剤の沈着 1.0kg のＬｉＣｌを1.0 Ｌの水に加え、15分攪拌してえ
た溶液を実施例１の溶液Ａに注ぎ、ｐＨが7.0 になるま
で 0.1Ｎ硫酸を加え、さらに15分攪拌した。この中性溶
液に実施例１のハニカム輪を１時間浸してから、取り出
して室温で乾燥させ、オーブンで250 ℃にて３時間加熱
した。えられたハニカム輪は重さ1316.9ｇで、その特性
と吸湿度は表１に示した。Example 2: Preparation of impregnation liquid and deposition of hygroscopic agent 1.0 kg of LiCl was added to 1.0 L of water, and the solution obtained by stirring for 15 minutes was poured into the solution A of Example 1 to obtain pH 7.0. 0.1N sulfuric acid was added to and stirred for 15 minutes. The honeycomb wheel of Example 1 was immersed in this neutral solution for 1 hour, then taken out, dried at room temperature, and heated in an oven at 250 ° C. for 3 hours. The honeycomb wheel thus obtained had a weight of 1316.9 g, and its characteristics and moisture absorption are shown in Table 1.
【００２２】実施例３ 本例はハニカム基材の製造にて、接着液を含浸液に替
え、直接湿気交換素子として使用しうる湿気交換ハニカ
ム輪をえるものである。Example 3 In this example, in the manufacture of a honeycomb substrate, an adhesive liquid is replaced with an impregnating liquid to obtain a moisture exchange honeycomb wheel which can be directly used as a moisture exchange element.
【００２３】418.5 ｇのセラミックと実施例２の含浸液
を使用する以外は、実施例１と同じく波形条447.8 ｇを
製造した。含浸液は平面条と波形条の接着にも用い、ハ
ニカム輪（1146.3ｇ、直径40cm）をえた。その特性と吸
湿度は表１に示した。A corrugated strip 447.8 g was prepared as in Example 1, except that 418.5 g of the ceramic and the impregnating liquid of Example 2 were used. The impregnating liquid was also used for bonding the flat strip and the corrugated strip to obtain a honeycomb ring (1146.3 g, diameter 40 cm). The characteristics and moisture absorption are shown in Table 1.
【００２４】実施例４ 0.5kg のＬｉＣｌを使用する以外は、実施例２と同じく
湿気交換輪を製造した。その特性と吸湿度は表１に示し
た。Example 4 A moisture exchange wheel was prepared as in Example 2 except that 0.5 kg of LiCl was used. The characteristics and moisture absorption are shown in Table 1.
【００２５】実施例５ 2.0kg のＬｉＣｌを使用する以外は、実施例２と同じく
湿気交換輪を製造した。その特性と吸湿度は表１に示し
た。Example 5 A moisture exchange wheel was prepared as in Example 2 except that 2.0 kg of LiCl was used. The characteristics and moisture absorption are shown in Table 1.
【００２６】比較例１ ＬｉＣｌを使用しない以外は、実施例２と同じく湿気交
換輪を製造した。その特性と吸湿度は表１に示した。Comparative Example 1 A moisture exchange wheel was manufactured in the same manner as in Example 2 except that LiCl was not used. The characteristics and moisture absorption are shown in Table 1.
【００２７】比較例２ 48Ｌの水に３ｋｇの水ガラスを加え、充分攪拌したの
ち、1.0kg のＬｉＣｌを1.0 Ｌの水に溶かした溶液を加
え、15分攪拌した。えられた水ガラス溶液に実施例１に
より製造したハニカム輪931.2 ｇを１時間浸して、攪拌
しながら 0.1Ｎ硫酸をｐＨが7.0 になるまで加えた。溶
液がゲル化する前に輪を取り出し、室温で乾燥してか
ら、250 ℃のオーブンに３時間置いた。乾燥した輪は重
量が1286.3ｇで、その特性と吸湿度は表１に示した。本
比較例の含浸液のゲル化速度は速く、ゲル化したのちは
使用できなかった。Comparative Example 2 3 kg of water glass was added to 48 L of water, and after sufficiently stirring, a solution of 1.0 kg of LiCl in 1.0 L of water was added and stirred for 15 minutes. 931.2 g of the honeycomb ring prepared in Example 1 was immersed in the obtained water glass solution for 1 hour, and 0.1N sulfuric acid was added with stirring until the pH reached 7.0. The wheels were removed before the solution gelled, dried at room temperature and then placed in an oven at 250 ° C for 3 hours. The dried wheel weighed 1286.3 g and its properties and moisture absorption are shown in Table 1. The gelling rate of the impregnating liquid of this comparative example was high, and it could not be used after gelling.
【００２８】比較例３ 含浸液にＬｉＣｌを使用しない以外は、比較例２と同じ
く湿気交換輪を製造した。その特性と吸湿度は表１に示
した。本比較例の含浸液は30分内にゲル化して使用でき
なかった。Comparative Example 3 A moisture exchange wheel was manufactured in the same manner as in Comparative Example 2 except that LiCl was not used as the impregnating liquid. The characteristics and moisture absorption are shown in Table 1. The impregnating liquid of this comparative example gelled within 30 minutes and could not be used.
【００２９】実施例６ 含浸液を、基材を含浸する前、室温で５日置いた以外
は、実施例２と同じく操作した。その結果は表２に示し
た。Example 6 The same operation as in Example 2 was carried out except that the impregnating liquid was left at room temperature for 5 days before impregnating the substrate. The results are shown in Table 2.
【００３０】実施例７ 含浸液を、基材を含浸する前、室温で３日置いた以外
は、実施例５と同じく操作した。その結果は表２に示し
た。Example 7 The same operation as in Example 5 was carried out except that the impregnating liquid was left at room temperature for 3 days before impregnating the substrate. The results are shown in Table 2.
【００３１】比較例４ 含浸液を、基材を含浸する前、室温で５日置いた以外
は、比較例１と同じく操作した。その結果は表２に示し
た。Comparative Example 4 The same operation as in Comparative Example 1 was carried out except that the impregnating liquid was left at room temperature for 5 days before impregnating the substrate. The results are shown in Table 2.
【００３２】比較例５ 含浸液を、基材を含浸する前、室温で３日置いた以外
は、比較例２と同じく操作した。その結果は表２に示し
た。Comparative Example 5 The same operation as in Comparative Example 2 was carried out except that the impregnating liquid was left at room temperature for 3 days before impregnating the substrate. The results are shown in Table 2.
【００３３】比較例６ 含浸液を、基材を含浸する前、室温で１時間置いた以外
は、比較例３と同じく操作した。その結果は表２に示し
た。Comparative Example 6 The same operation as in Comparative Example 3 was carried out except that the impregnating liquid was left at room temperature for 1 hour before impregnating the substrate. The results are shown in Table 2.
【００３４】[0034]
【表１】 [Table 1]
【００３５】[0035]
【表２】 [Table 2]
【００３６】表１および表２に示した結果より、本方法
は水ガラス法に比べ、吸湿度と安定性が優れていること
がわかる。From the results shown in Tables 1 and 2, it can be seen that this method is superior in moisture absorption and stability to the water glass method.
【００３７】実施例８〜１５ 含浸液に異なる組成物を使用した以外は、実施例２と同
じく操作した。その結果は表３に示した。実施例８の含
浸液は40％コロイドシリカ水溶液を12.5kgの替わりに25
kg使用し、実施例９〜１３はＬｉＣｌの替わりにそれぞ
れＬｉＯＨ、ＬｉＮＯ3 、ＣａＣｌ2 、Ａｌ2 （Ｓ
Ｏ4 ）3 、ＣｕＳＯ4 を使用し、実施例１４と１５はｐ
Ｈ6.0 と8.3 の含浸液をそれぞれ使用した。Examples 8 to 15 The procedure was the same as in Example 2 except that different compositions were used for the impregnating liquids. The results are shown in Table 3. The impregnating solution of Example 8 was a 25% aqueous solution of 40% colloidal silica instead of 12.5 kg.
kg is used, and in Examples 9 to 13, instead of LiCl, LiOH, LiNO 3 , CaCl 2 , Al 2 (S
O 4 ) 3 and CuSO 4 are used, and Examples 14 and 15 are p
H6.0 and 8.3 impregnating solutions were used respectively.
【００３８】[0038]
【表３】 [Table 3]
【００３９】[0039]
【発明の効果】本発明の方法によれば少ない工程で容易
に、多量の吸湿剤を含有し適切な孔径を有する吸湿能の
高い湿気交換素子をえることができる。According to the method of the present invention, it is possible to easily obtain a moisture exchange element having a high hygroscopic capacity, containing a large amount of a hygroscopic agent and having an appropriate pore size, in a small number of steps.
フロントページの続き (72)発明者 チェンウネ ファン 台湾、シンチュ、カン フ ロード、セク ション２、321 (72)発明者 シャオチュン チュ 台湾、シンチュ、カン フ ロード、セク ション２、321 (72)発明者 ハンチン チャン 台湾、シンチュ、カン フ ロード、セク ション２、321 (72)発明者 チンシュアーン ファン 台湾、シンチュ、カン フ ロード、セク ション２、321 (72)発明者 チャンチン チェン 台湾、シンチュ、カン フ ロード、セク ション２、321 (72)発明者 ポユイ チェン 台湾、シンチュ、カン フ ロード、セク ション２、321Front Page Continuation (72) Inventor Chen Eun Hwan Taiwan, Xinchu, Kang Road, Section 2, 321 (72) Inventor Xiao Chun Chu Taiwan, Xin Chu, Kang Road, Section 2, 321 (72) Inventor Hunting Chang Taiwan, Xinchu, Kang Road, Section 2, 321 (72) Inventor Qing Xuan Fan Taiwan, Xin Chu, Kang Road, Section 2, 321 (72) Inventor Chang Qin Cheng Taiwan, Xin Chu, Kang Road, Section 2, 321 (72) Inventor Poyu Chen Taiwan, Xinchu, Kampf Road, Section 2, 321
Claims (7)
５〜20重量％のコロイドシリカ、0.25〜2.5 重量％の水
溶性金属塩および含浸液のｐＨを５〜９に調節するのに
充分な量の酸よりなる含浸水溶液に含浸したのち、基材
に沈着している含浸液を加熱下乾燥しゲル化させること
を特徴とする湿気交換素子の製造法。1. A substrate comprising organic or inorganic fibers,
After impregnating with an impregnating aqueous solution comprising 5 to 20% by weight of colloidal silica, 0.25 to 2.5% by weight of a water-soluble metal salt and a sufficient amount of acid to adjust the pH of the impregnating solution to 5 to 9, A method for producing a moisture exchange element, characterized in that the deposited impregnating liquid is dried under heating to be gelled.
および硫酸塩からなる群より選ばれたものである請求項
１記載の製造法。2. The method according to claim 1, wherein the metal salt is selected from the group consisting of halides, nitrates, hydroxides and sulfates.
Ｆｅ、ＣｕおよびＺｎからなる群より選ばれたものであ
る請求項２記載の製造法。3. The metal is Li, Ca, Al, Mg, Ni,
The method according to claim 2, wherein the method is selected from the group consisting of Fe, Cu and Zn.
法。4. The method according to claim 1, wherein the acid is an inorganic acid.
８時間行なう請求項１記載の製造法。5. Drying and gelling at 100-400 ° C. for 40 minutes-
The method according to claim 1, which is carried out for 8 hours.
0mm の波形条と厚さ0.10〜0.60mmの平面条を積層してな
るハニカム構造である請求項１記載の製造法。6. The base material has a wave height of 0.4 to 2.0 mm and a wavelength of 0.4 to 4.
2. The manufacturing method according to claim 1, wherein the honeycomb structure has a corrugated strip of 0 mm and a flat strip having a thickness of 0.10 to 0.60 mm.
形面に５〜20重量％のコロイドシリカ、0.25〜2.5 重量
％の水溶性金属塩および含浸液のｐＨを５〜９に調節す
るのに充分な量の酸よりなる含浸水溶液を塗布し、この
塗布条を加熱により波形に固定し、別に平面状繊維条を
上記含浸液に含浸し、直ちにこの含浸平面状繊維条を波
形条と一緒にハニカム輪に巻き上げ、このハニカム輪を
加熱し、そこに含まれている含浸液を乾燥しゲル化させ
ることを特徴とする湿気交換ハニカム輪の製造法。7. A flat fiber strip is pressed into a corrugated surface, and the corrugated surface is adjusted to a pH of 5 to 9 with 5 to 20% by weight of colloidal silica, 0.25 to 2.5% by weight of a water-soluble metal salt and an impregnating solution. An aqueous solution of impregnation consisting of a sufficient amount of acid is applied to this, the coating strip is fixed to the corrugation by heating, another flat fiber strip is impregnated with the above impregnating solution, and immediately this impregnated flat fiber strip is formed into a corrugated strip. A method for producing a moisture exchange honeycomb wheel, which comprises winding the honeycomb wheel together, heating the honeycomb wheel, and drying the impregnating liquid contained therein to cause gelation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4129045A JPH0773654B2 (en) | 1992-05-08 | 1992-05-21 | Method of manufacturing moisture exchange element |
| DE4217451A DE4217451C2 (en) | 1992-05-08 | 1992-05-26 | Method of making a moisture exchange element |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/880,532 US5254195A (en) | 1992-05-08 | 1992-05-08 | Process for manufacturing moisture exchange element |
| JP4129045A JPH0773654B2 (en) | 1992-05-08 | 1992-05-21 | Method of manufacturing moisture exchange element |
| DE4217451A DE4217451C2 (en) | 1992-05-08 | 1992-05-26 | Method of making a moisture exchange element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06323A true JPH06323A (en) | 1994-01-11 |
| JPH0773654B2 JPH0773654B2 (en) | 1995-08-09 |
Family
ID=27203788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4129045A Expired - Lifetime JPH0773654B2 (en) | 1992-05-08 | 1992-05-21 | Method of manufacturing moisture exchange element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0773654B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000126541A (en) * | 1999-11-30 | 2000-05-09 | Seibu Giken Co Ltd | Moisture exchange adsorption body |
| JP2011212674A (en) * | 2010-03-19 | 2011-10-27 | Osaka Gas Co Ltd | Water-absorbing material composition and water-absorbing sheet |
| JP2013193043A (en) * | 2012-03-21 | 2013-09-30 | Osaka Gas Co Ltd | Water-absorbing material composition and water-absorbing sheet |
-
1992
- 1992-05-21 JP JP4129045A patent/JPH0773654B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000126541A (en) * | 1999-11-30 | 2000-05-09 | Seibu Giken Co Ltd | Moisture exchange adsorption body |
| JP2011212674A (en) * | 2010-03-19 | 2011-10-27 | Osaka Gas Co Ltd | Water-absorbing material composition and water-absorbing sheet |
| JP2013193043A (en) * | 2012-03-21 | 2013-09-30 | Osaka Gas Co Ltd | Water-absorbing material composition and water-absorbing sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0773654B2 (en) | 1995-08-09 |
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