JPH08117546A - Dehumidifier - Google Patents
DehumidifierInfo
- Publication number
- JPH08117546A JPH08117546A JP6262234A JP26223494A JPH08117546A JP H08117546 A JPH08117546 A JP H08117546A JP 6262234 A JP6262234 A JP 6262234A JP 26223494 A JP26223494 A JP 26223494A JP H08117546 A JPH08117546 A JP H08117546A
- Authority
- JP
- Japan
- Prior art keywords
- lithium chloride
- calcium chloride
- moisture absorbing
- moisture
- chloride
- 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
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
- F24F3/1417—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 liquid hygroscopic desiccants
-
- 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
- F24F2003/144—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 dehumidification only
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
- Drying Of Gases (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、除湿媒体を用いて空
気中の水分を除去する除湿装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifying device for removing moisture in air using a dehumidifying medium.
【０００２】[0002]
【従来の技術】従来、除湿装置としては、塩化リチウム
(ＬiＣl)の水溶液を吸湿媒体として用いたものがある。
この除湿装置は、多孔質モジュール,ポンプ,タンクを配
管により接続して循環回路を構成しており、タンク内の
塩化リチウムの水溶液を加熱するヒータと多孔質モジュ
ールに空気を送風する送風機とを備えて、塩化リチウム
の水溶液に接触する空気中の水分が、塩化リチウムの水
溶液の濃度が高いほど、また温度が低いほど塩化リチウ
ムの水溶液によく吸収されるという原理を利用してい
る。2. Description of the Related Art Conventionally, lithium chloride has been used as a dehumidifier.
There is one using an aqueous solution of (LiCl) as a moisture absorbing medium.
This dehumidifying device has a circulation circuit configured by connecting a porous module, a pump, and a tank with piping, and includes a heater for heating an aqueous solution of lithium chloride in the tank and a blower for blowing air to the porous module. Then, the principle is used that the water content in the air which comes into contact with the aqueous solution of lithium chloride is absorbed better by the aqueous solution of lithium chloride as the concentration of the aqueous solution of lithium chloride is higher and the temperature is lower.
【０００３】すなわち、上記構成の除湿装置は、室内に
設けられた湿度センサにより湿度を検出して、検出した
湿度が所望の湿度以上の場合、ポンプを駆動して、塩化
リチウムの水溶液をタンク,ポンプを経て多孔質モジュ
ールへ供給する。そして、上記送風機により送風された
空気の水分を多孔質モジュール内の塩化リチウムの水溶
液に吸収する。次に、吸収された水分により塩化リチウ
ムの水溶液が低濃度になると、ポンプを停止して循環を
止め、タンク内の塩化リチウムの水溶液をヒータにより
加熱して、塩化リチウムの水溶液に含まれている水分を
外気に放出して、塩化リチウムの水溶液を濃縮する。こ
のようにして、上記除湿装置は、塩化リチウムの水溶液
の水分の吸収,放出を繰り返して除湿運転を行う。That is, the dehumidifying device having the above structure detects the humidity by the humidity sensor provided in the room, and when the detected humidity is higher than the desired humidity, the pump is driven to store the lithium chloride aqueous solution in the tank. Supply to porous module via pump. Then, the moisture of the air blown by the blower is absorbed by the aqueous solution of lithium chloride in the porous module. Next, when the aqueous solution of lithium chloride becomes low in concentration due to the absorbed water, the pump is stopped to stop the circulation, and the aqueous solution of lithium chloride in the tank is heated by the heater to be contained in the aqueous solution of lithium chloride. The water is released to the outside air to concentrate the lithium chloride aqueous solution. In this way, the dehumidifying device performs dehumidifying operation by repeatedly absorbing and releasing water in the aqueous solution of lithium chloride.
【０００４】[0004]
【発明が解決しようとする課題】ところで、一般に、上
記除湿装置の目標とする除湿能力として、塩化リチウム
の水溶液の濃縮工程を行なうことなく、約１０リットル
の水分を除湿することが要求されている。そのために
は、約４０リットルの塩化リチウムの水溶液が必要であ
り、その水溶液を収容するタンクが大きくなるため、装
置が大きくなるという欠点がある。By the way, in general, as a target dehumidifying capacity of the dehumidifying device, it is required to dehumidify about 10 liters of water without performing a step of concentrating an aqueous solution of lithium chloride. . For that purpose, about 40 liters of an aqueous solution of lithium chloride is required, and the tank for containing the aqueous solution becomes large, so that there is a drawback that the device becomes large.
【０００５】また、上記塩化リチウムの水溶液のコスト
が高いため、塩化リチウムの水溶液が多いと装置全体の
コストが著しく高くなるという問題がある。Further, since the cost of the aqueous solution of lithium chloride is high, there is a problem that the cost of the entire apparatus becomes significantly high when the amount of the aqueous solution of lithium chloride is large.
【０００６】また、除湿装置ではないが、吸収式冷凍機
では、その媒体として、臭化リチウム(ＬiＢr)と塩化カ
ルシウム(ＣaＣl)との混合水溶液を用いたものが知られ
ている。この混合水溶液は、臭化リチウムのみの水溶液
に比べて、臭化リチウムと塩化カルシウムとの混合比率
によっては、それらの溶解度が高くなり、吸収式冷凍機
の熱媒体としての性能が優れている。しかしながら、こ
の吸収式冷凍機の臭化リチウムと塩化カルシウムの混合
水溶液は、濃縮,希釈による高温,低温の温度サイクルに
おける冷媒としての性能のみが要求され、除湿装置のよ
うに水分を多く吸収することは要求されていない。しか
も、上記臭化リチウムと塩化カルシウムとの混合水溶液
を仮に吸湿媒体として用いてもその吸湿量は、臭化リチ
ウム単独に用いた水溶液に比べて変わらないかわずかに
増加するだけである。したがって、上記臭化リチウムと
塩化カルシウムの混合水溶液を除湿装置に用いても、除
湿能力の向上は望めない。Although not a dehumidifying device, it is known that an absorption refrigerator uses a mixed aqueous solution of lithium bromide (LiBr) and calcium chloride (CaCl) as its medium. Compared with an aqueous solution containing only lithium bromide, this mixed aqueous solution has higher solubility depending on the mixing ratio of lithium bromide and calcium chloride, and is excellent in performance as a heat medium of an absorption refrigerator. However, the mixed aqueous solution of lithium bromide and calcium chloride in this absorption refrigerator requires only performance as a refrigerant in high-temperature and low-temperature temperature cycles by concentration and dilution, and absorbs a large amount of water like a dehumidifier. Is not required. Moreover, even if the above mixed aqueous solution of lithium bromide and calcium chloride is used as the moisture absorbing medium, the amount of moisture absorption is the same or slightly increases as compared with the aqueous solution used for lithium bromide alone. Therefore, even if the mixed aqueous solution of lithium bromide and calcium chloride is used in a dehumidifying device, improvement in dehumidifying ability cannot be expected.
【０００７】そこで、この発明の目的は、吸湿媒体の量
を少なくでき、したがって、低コストでかつ小型化ので
きる除湿装置を提供することにある。Therefore, an object of the present invention is to provide a dehumidifying device which can reduce the amount of a hygroscopic medium, and therefore can be reduced in cost and downsized.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の除湿装置は、空気中の水分を吸湿媒体に
吸収して除湿する除湿装置において、上記吸湿媒体は少
なくとも塩化リチウムと塩化カルシウムを含むと共に、
上記吸湿媒体中の上記塩化リチウムと上記塩化カルシウ
ムとの重量比が略９５：５から略５０：５０であること
を特徴としている。In order to achieve the above object, the dehumidifying device according to claim 1 is a dehumidifying device which dehumidifies moisture in the air by absorbing the moisture in the air into the dehumidifying device. Including calcium
The weight ratio of the lithium chloride to the calcium chloride in the hygroscopic medium is about 95: 5 to about 50:50.
【０００９】また、請求項２の除湿装置は、空気中の水
分を吸湿媒体に吸収して除湿する除湿装置において、上
記吸湿媒体は少なくとも塩化リチウムと塩化カルシウム
を含むと共に、上記吸湿媒体中の上記塩化リチウムと上
記塩化カルシウムとの重量比が略８５：１５から略７
０：３０であることを特徴としている。Further, the dehumidifying device of claim 2 is a dehumidifying device which absorbs moisture in the air into a moisture absorbing medium to dehumidify, wherein the moisture absorbing medium contains at least lithium chloride and calcium chloride, and the moisture absorbing medium contains the moisture absorbing medium. The weight ratio of lithium chloride to the calcium chloride is about 85:15 to about 7
It is characterized by being 0:30.
【００１０】[0010]
【作用】上記請求項１の除湿装置によれば、少なくとも
塩化リチウムと塩化カルシウムを含む吸湿媒体に空気中
の水分を吸収して除湿する。このとき、上記塩化リチウ
ムと塩化カルシウムとの重量比が略９５：５よりも塩化
カルシウムの割合が少ないと、塩化リチウムのみの水溶
液と吸湿量がほとんど変わらないのに対して、塩化リチ
ウムと塩化カルシウムとの重量比が略９５：５よりも塩
化カルシウムの割合が多いと、塩化リチウムのみの水溶
液よりも吸湿量が増加する。一方、上記塩化リチウムと
塩化カルシウムとの重量比が略５０：５０よりも塩化カ
ルシウムの割合が少ないと、塩化リチウムのみの水溶液
よりも吸湿量が増加するのに対して、塩化リチウムと塩
化カルシウムとの重量比が略５０：５０よりも塩化カル
シウムの割合が多いと、塩化リチウムのみの水溶液より
も吸湿量が減少する。したがって、上記吸湿媒体中の塩
化リチウムと塩化カルシウムとの重量比が略９５：５か
ら略５０：５０の範囲では、塩化リチウムのみの水溶液
を吸湿媒体として用いた場合に比べて、吸湿量を増やす
ことができると共に、高価な塩化リチウムの一部を安価
な塩化カルシウムで代替してコストを低減できる。ま
た、吸湿量が増加した分、吸湿媒体の量を減らすことに
よって、吸湿媒体用のタンクを小さくできる。したがっ
て、低コストでかつ小型の除湿装置を実現できる。According to the dehumidifying apparatus of the first aspect, the moisture in the air is absorbed by the moisture absorbing medium containing at least lithium chloride and calcium chloride to dehumidify. At this time, when the weight ratio of lithium chloride to calcium chloride is less than about 95: 5, the moisture absorption amount is almost the same as that of the aqueous solution containing only lithium chloride, whereas the lithium chloride and calcium chloride are almost the same. If the weight ratio of calcium chloride is higher than about 95: 5, the amount of moisture absorption is higher than that of an aqueous solution containing only lithium chloride. On the other hand, when the weight ratio of lithium chloride to calcium chloride is less than about 50:50, the amount of moisture absorption increases as compared with an aqueous solution containing only lithium chloride. If the weight ratio of calcium chloride is higher than about 50:50, the amount of moisture absorption is lower than that of an aqueous solution containing only lithium chloride. Therefore, when the weight ratio of lithium chloride to calcium chloride in the hygroscopic medium is in the range of approximately 95: 5 to approximately 50:50, the amount of hygroscopicity is increased as compared with the case where an aqueous solution of only lithium chloride is used as the hygroscopic medium. At the same time, a part of expensive lithium chloride can be replaced with inexpensive calcium chloride to reduce the cost. In addition, the tank for the moisture absorbing medium can be made smaller by reducing the amount of the moisture absorbing medium as the moisture absorbing amount increases. Therefore, a low-cost and small-sized dehumidifier can be realized.
【００１１】また、上記請求項２の除湿装置によれば、
少なくとも塩化リチウムと塩化カルシウムを含む吸湿媒
体に空気中の水分を吸収して除湿する。このとき、上記
塩化リチウムと塩化カルシウムとの重量比が略８５：１
５よりも塩化カルシウムの割合が少ないと、塩化リチウ
ムのみの水溶液より吸湿量が少し増えるか、ほとんど変
わらないのに対して、塩化リチウムと塩化カルシウムと
の重量比が略８５：１５よりも塩化カルシウムの割合が
多いと、吸湿量が大幅に増加する一方、塩化リチウムと
塩化カルシウムとの重量比が略７０：３０よりも塩化カ
ルシウムの割合が少ないと、塩化リチウムのみの水溶液
よりも吸湿量が増えるのに対して、塩化リチウムと塩化
カルシウムとの重量比が略７０：３０よりも塩化カルシ
ウムの割合が多いと、塩化リチウムのみの水溶液に比べ
て吸湿量はあまり増えないか、または減少する。したが
って、上記吸湿媒体中の塩化リチウムと塩化カルシウム
との重量比が略８５：１５から略７０：３０であるの
で、塩化リチウムのみの水溶液を吸湿媒体として用いた
場合に比べて、吸湿量を大幅に増やすことができる。ま
た、高価な塩化リチウムの一部を安価な塩化カルシウム
で代替してコストを低減できる。また、吸湿媒体の量を
少なくしても、積分除湿量(吸湿媒体による給水可能量)
を同一にでき、吸湿媒体用のタンクを小さくできる。し
たがって、低コストでかつ小型の除湿装置を実現でき
る。According to the dehumidifying device of the second aspect,
A moisture absorbing medium containing at least lithium chloride and calcium chloride absorbs moisture in the air to dehumidify. At this time, the weight ratio of the lithium chloride and calcium chloride is about 85: 1.
When the ratio of calcium chloride is less than 5, the amount of moisture absorption is slightly higher than that of an aqueous solution containing only lithium chloride, or hardly changes, whereas the weight ratio of lithium chloride to calcium chloride is less than about 85:15. When the ratio of calcium chloride is large, the amount of moisture absorption is significantly increased. On the other hand, when the ratio of calcium chloride is less than the weight ratio of lithium chloride to calcium chloride of about 70:30, the amount of moisture absorption is larger than the aqueous solution containing only lithium chloride. On the other hand, when the weight ratio of lithium chloride to calcium chloride is greater than about 70:30, the moisture absorption amount does not increase or decreases as compared with the aqueous solution containing only lithium chloride. Therefore, since the weight ratio of lithium chloride to calcium chloride in the hygroscopic medium is approximately 85:15 to approximately 70:30, the amount of hygroscopicity is significantly larger than that when an aqueous solution of only lithium chloride is used as the hygroscopic medium. Can be increased to Further, the cost can be reduced by replacing a part of expensive lithium chloride with inexpensive calcium chloride. Even if the amount of the absorbent medium is reduced, the integrated dehumidification amount (the amount of water that can be supplied by the absorbent medium)
Can be made the same, and the tank for the hygroscopic medium can be made small. Therefore, a low-cost and small-sized dehumidifier can be realized.
【００１２】[0012]
【実施例】以下、この発明の除湿装置を一実施例により
詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A dehumidifying device of the present invention will be described in detail below with reference to an embodiment.
【００１３】図１はこの発明の一実施例の除湿装置の構
成図を示しており、１は容器１aとその容器１aを貫通す
る複数のチューブ１bとを有する多孔質モジュール、２
は上記多孔質モジュール１の一端に配管１１を介して一
端が接続されたポンプ、３は上記ポンプ２の他端に配管
１０を介して一端が接続されると共に、他端が配管１２
を介して多孔質モジュール１の他端に接続されたタンク
である。そして、上記タンク３内に塩化リチウム(ＬiＣ
l)と塩化カルシウム(ＣaＣl)との混合水溶液である吸湿
媒体６を貯えると共に、タンク３に吸湿媒体６を加熱す
るヒータ４を備えている。上記多孔質モジュール１は、
各チューブ１b内に空気を送り込む送風機５を備え、各
チューブ１b内を流れる空気の水分は、チューブ１bの水
蒸気を透過する微細孔を通って容器１a内の吸湿媒体６
に吸収される。上記多孔質モジュール１,ポンプ２,タン
ク３および配管１０,１１,１２により吸湿媒体６が循環
する循環回路を構成している。FIG. 1 is a block diagram of a dehumidifying device according to an embodiment of the present invention, in which 1 is a porous module having a container 1a and a plurality of tubes 1b penetrating the container 1a.
Is a pump whose one end is connected to one end of the porous module 1 via a pipe 11, 3 is one end connected to the other end of the pump 2 via a pipe 10, and the other end is a pipe 12
It is a tank connected to the other end of the porous module 1 through. Then, in the tank 3, lithium chloride (LiC
1) and a calcium chloride (CaCl) mixed aqueous solution, which is a mixed aqueous solution, and the tank 3 is provided with a heater 4 for heating the hygroscopic medium 6. The porous module 1 is
An air blower 5 for sending air into each tube 1b is provided, and the water content of the air flowing in each tube 1b passes through the fine pores through which the water vapor of the tube 1b permeates, and the moisture absorbing medium 6 in the container 1a.
Is absorbed by The porous module 1, the pump 2, the tank 3, and the pipes 10, 11 and 12 constitute a circulation circuit in which the moisture absorbing medium 6 circulates.
【００１４】上記構成の除湿装置は、室内に設けられた
湿度センサ７により湿度を検出して、検出された湿度が
所望の湿度以上の場合、図示しない制御部によってポン
プ２と送風機５を作動して、タンク３の吸湿媒体６を配
管１０,ポンプ２,配管１１,多孔質モジュール１および
配管１２を介して循環させる。そして、上記送風機５に
より送風された空気中の水分を多孔質モジュール１内の
吸湿媒体６により吸収する。その後、上記吸湿媒体６の
吸湿量が増えて、吸湿媒体６の濃度が低くなると、ポン
プ２と送風機５を停止して、ヒータ４を加熱する。この
ヒータ４の加熱によって、タンク３内の吸湿媒体６は所
定の高温まで加熱され、吸湿媒体６に含まれている水分
を、タンク３上に設けた排気ダクト３aを介して大気中
に放出して、吸湿媒体６を濃縮,再生する。そして、再
びポンプ２を作動させて、除湿運転を行う。The dehumidifier having the above structure detects the humidity by the humidity sensor 7 provided in the room, and when the detected humidity is higher than the desired humidity, the control unit (not shown) operates the pump 2 and the blower 5. Then, the moisture absorbing medium 6 in the tank 3 is circulated through the pipe 10, the pump 2, the pipe 11, the porous module 1 and the pipe 12. Then, the moisture in the air blown by the blower 5 is absorbed by the moisture absorbing medium 6 in the porous module 1. After that, when the moisture absorption amount of the moisture absorption medium 6 increases and the concentration of the moisture absorption medium 6 decreases, the pump 2 and the blower 5 are stopped, and the heater 4 is heated. By the heating of the heater 4, the moisture absorbing medium 6 in the tank 3 is heated to a predetermined high temperature, and the moisture contained in the moisture absorbing medium 6 is released into the atmosphere through the exhaust duct 3a provided on the tank 3. Then, the moisture absorbing medium 6 is concentrated and regenerated. Then, the pump 2 is operated again to perform the dehumidifying operation.
【００１５】上記除湿装置に使用する吸湿媒体６の塩化
リチウム(ＬiＣl)と塩化カルシウム(ＣaＣl)との最適な
重量比を調べるため、塩化リチウムと塩化カルシウムの
重量比に対する吸湿量の変化を実験により調べた。その
実験結果を図２に示している。なお、図２の横軸は混合
吸湿液の比率(塩化リチウムと塩化カルシウムとの重量
比)、縦軸は吸湿量(＝一定時間後の増加重量／初期重
量)である。In order to investigate the optimum weight ratio of lithium chloride (LiCl) and calcium chloride (CaCl) of the moisture absorbing medium 6 used in the above dehumidifying device, a change in the amount of moisture absorption with respect to the weight ratio of lithium chloride and calcium chloride was experimentally determined. Examined. The experimental results are shown in FIG. The horizontal axis of FIG. 2 represents the ratio of the mixed hygroscopic liquid (weight ratio of lithium chloride to calcium chloride), and the vertical axis represents the moisture absorption amount (= increased weight after a certain period of time / initial weight).
【００１６】上記実験では、塩化リチウムと塩化カルシ
ウムとの重量比が異なる水溶液(溶液濃度３０wt％で同
一重量とする)を同一形状の容器に夫々入れて、温度２
７℃,相対湿度６０％において、各水溶液の液面に一定
時間(１９時間)風を当てた後、各容器内の水溶液の吸湿
量を実測した。この実験の結果、塩化リチウムのみの水
溶液に比べて、塩化リチウムと塩化カルシウムが混合さ
れた吸湿液は、ある重量比によっては吸湿量が増加する
ことが判明した。すなわち、塩化リチウムのみの水溶液
の吸湿量が１５wt％であるのに対して、塩化リチウムと
塩化カルシウムとの重量比が９５：５から５０：５０ま
での範囲の混合吸湿液では、吸湿量が１５wt％より大き
な値となり、さらに塩化リチウムと塩化カルシウムとの
重量比が８５：１５から７０：３０までの範囲の混合吸
湿液では、吸湿量が約１．５〜２倍近い増加が見られ
た。In the above experiment, aqueous solutions having different weight ratios of lithium chloride and calcium chloride (the same weight at a solution concentration of 30 wt%) were put in containers of the same shape, and the temperature was adjusted to 2
At 7 ° C. and 60% relative humidity, air was blown on the liquid surface of each aqueous solution for a certain time (19 hours), and then the moisture absorption amount of the aqueous solution in each container was measured. As a result of this experiment, it has been found that the hygroscopic liquid in which lithium chloride and calcium chloride are mixed has an increased moisture absorption amount depending on a certain weight ratio, as compared with an aqueous solution containing only lithium chloride. That is, the moisture absorption amount of the aqueous solution containing only lithium chloride is 15 wt%, whereas the moisture absorption amount of the mixed hygroscopic liquid having a weight ratio of lithium chloride and calcium chloride in the range of 95: 5 to 50:50 is 15 wt%. %, And in the mixed hygroscopic liquid in which the weight ratio of lithium chloride and calcium chloride is in the range of 85:15 to 70:30, the amount of moisture absorption increased by about 1.5 to 2 times.
【００１７】したがって、上記除湿装置において、塩化
リチウムのみの水溶液を吸湿媒体として用いて、空気を
除湿する場合に比べて、塩化リチウムと塩化カルシウム
との重量比が９５：５から５０：５０にした混合吸湿液
を用いた場合、吸湿量を増やすことができる。また、高
価な塩化リチウムの一部を安価な塩化カルシウムで代替
してコストを低減することができる。さらに、上記塩化
リチウムと塩化カルシウムとの重量比を８５：１５から
７０：３０にすることによって、吸湿量を大幅に増やす
ことができる。したがって、吸湿媒体の量を少なくして
も、積分除湿量(吸湿液による給水可能量)を同じにで
き、吸湿媒体用のタンクを小さくできる。例えば、塩化
リチウムと塩化カルシウムとの重量比が８０：２０の混
合吸湿液を用いた場合、塩化リチウムのみの水溶液の吸
湿量と塩化リチウムと塩化カルシウムの混合吸湿液の吸
湿量の比は約１．９：１(≒２８wt％：１５wt％)とする
と、塩化リチウムのみの水溶液に比べて、タンクの容量
比を０．５３(≒１／１．９)にすることができる。Therefore, in the above dehumidifying device, the weight ratio of lithium chloride to calcium chloride is 95: 5 to 50:50, as compared with the case of dehumidifying air by using an aqueous solution of only lithium chloride as a hygroscopic medium. When a mixed hygroscopic liquid is used, the amount of hygroscopicity can be increased. Further, the cost can be reduced by replacing a part of expensive lithium chloride with inexpensive calcium chloride. Furthermore, by adjusting the weight ratio of lithium chloride and calcium chloride from 85:15 to 70:30, the amount of moisture absorption can be significantly increased. Therefore, even if the amount of the hygroscopic medium is reduced, the integrated dehumidifying amount (the amount of water that can be supplied by the hygroscopic liquid) can be made the same, and the tank for the hygroscopic medium can be made small. For example, when a mixed hygroscopic liquid having a weight ratio of lithium chloride and calcium chloride of 80:20 is used, the ratio of the hygroscopic amount of the aqueous solution of only lithium chloride to the hygroscopic amount of the mixed hygroscopic liquid of lithium chloride and calcium chloride is about 1 When set to 0.9: 1 (≉28 wt%: 15 wt%), the volume ratio of the tank can be set to 0.53 (≉1 / 1.9) as compared with an aqueous solution containing only lithium chloride.
【００１８】したがって、低コストでかつ小型の除湿装
置を実現することができる。Therefore, a low-cost and small-sized dehumidifying device can be realized.
【００１９】上記実施例では、吸湿媒体として塩化リチ
ウムと塩化カルシウムとの混合吸湿液を用いたが、吸湿
媒体はこれに限らず、少なくとも塩化リチウムと塩化カ
ルシウムを含む吸湿媒体であればよい。In the above embodiment, a mixed hygroscopic liquid of lithium chloride and calcium chloride was used as the hygroscopic medium, but the hygroscopic medium is not limited to this, and any hygroscopic medium containing at least lithium chloride and calcium chloride may be used.
【００２０】また、上記実施例では、多孔質モジュール
１,ポンプ２,タンク３および配管１０,１１,１２で構成
された除湿装置を用いたが、除湿装置の構成はこれに限
らないのは勿論である。Further, in the above embodiment, the dehumidifying device constituted by the porous module 1, the pump 2, the tank 3 and the pipes 10, 11, 12 was used, but the dehumidifying device is not limited to this in structure. Is.
【００２１】また、上記実施例では、塩化リチウムと塩
化カルシウムとの混合吸湿液の溶液濃度を３０wt％とし
たが、溶液濃度はこれに限らず、適宜な溶液濃度にして
よい。Further, in the above embodiment, the solution concentration of the mixed hygroscopic liquid of lithium chloride and calcium chloride was set to 30 wt%, but the solution concentration is not limited to this and may be an appropriate solution concentration.
【００２２】[0022]
【発明の効果】以上より明らかなように、請求項１の発
明の除湿装置は、空気中の水分を吸湿媒体に吸収して除
湿する除湿装置において、上記吸湿媒体は少なくとも塩
化リチウムと塩化カルシウムを含むと共に、上記吸湿媒
体中の塩化リチウムと塩化カルシウムとの重量比を略９
５：５から略５０：５０にしたものである。As is apparent from the above, the dehumidifying apparatus of the invention of claim 1 is a dehumidifying apparatus for dehumidifying moisture in the air by absorbing the moisture in the air into the dehumidifying medium, wherein the moisture absorbing medium contains at least lithium chloride and calcium chloride. In addition, the weight ratio of lithium chloride and calcium chloride in the moisture absorbing medium is approximately 9
It is from 5: 5 to approximately 50:50.
【００２３】したがって、請求項１の発明の除湿装置に
よれば、上記吸湿媒体の塩化リチウムと塩化カルシウム
の混合比を略９５：５から略５０：５０にすることによ
って、塩化リチウムのみの水溶液を吸湿媒体として用い
た場合に比べて、高価な塩化リチウムの一部を安価な塩
化カルシウムで代替でき、しかも塩化リチウムのみの水
溶液に比して吸湿量も増やすことができる。したがっ
て、低コストな除湿装置を実現することができる。Therefore, according to the dehumidifying apparatus of the first aspect of the present invention, by changing the mixing ratio of lithium chloride and calcium chloride of the hygroscopic medium from approximately 95: 5 to approximately 50:50, an aqueous solution containing only lithium chloride can be obtained. Compared with the case where it is used as a hygroscopic medium, a part of expensive lithium chloride can be replaced with inexpensive calcium chloride, and the amount of hygroscopicity can be increased as compared with an aqueous solution containing only lithium chloride. Therefore, a low cost dehumidifier can be realized.
【００２４】また、請求項２の発明の除湿装置は、空気
中の水分を吸湿媒体に吸収して除湿する除湿装置におい
て、上記吸湿媒体は少なくとも塩化リチウムと塩化カル
シウムを含むと共に、上記吸湿媒体の塩化リチウムと塩
化カルシウムとの重量比を略８５：１５から略７０：３
０にしたものである。Further, the dehumidifying device of the invention of claim 2 is a dehumidifying device which dehumidifies moisture in the air by absorbing the moisture in the air, wherein the moisture absorbing medium contains at least lithium chloride and calcium chloride, and The weight ratio of lithium chloride to calcium chloride is about 85:15 to about 70: 3.
It is set to 0.
【００２５】したがって、請求項２の発明の除湿装置に
よれば、上記吸湿媒体の塩化リチウムと塩化カルシウム
の混合比を略８５：１５から略７０：３０にすることに
よって、塩化リチウムのみの水溶液を吸湿媒体として用
いた場合に比べて、吸湿量を特に増やすことができると
共に、高価な塩化リチウムの一部を安価な塩化カルシウ
ムで代替してコストを低減することができる。また、上
記吸湿媒体の量を減らしても、従来と同一積分除湿量に
でき、吸湿媒体用のタンクを小さくできる。したがっ
て、低コストでかつ小型化のできる除湿装置を実現する
ことができる。Therefore, according to the dehumidifying apparatus of the invention of claim 2, by changing the mixing ratio of lithium chloride and calcium chloride of the hygroscopic medium from approximately 85:15 to approximately 70:30, an aqueous solution containing only lithium chloride is obtained. Compared with the case where it is used as a hygroscopic medium, the amount of hygroscopicity can be particularly increased, and a part of expensive lithium chloride can be replaced with inexpensive calcium chloride to reduce the cost. Further, even if the amount of the moisture absorbing medium is reduced, the same integrated dehumidifying amount as the conventional one can be obtained, and the tank for the moisture absorbing medium can be made small. Therefore, it is possible to realize a dehumidifying device that can be downsized at low cost.
【図１】 図１はこの発明の一実施例の除湿装置の構成
図である。FIG. 1 is a configuration diagram of a dehumidifying device according to an embodiment of the present invention.
【図２】 図２は上記除湿装置の吸湿媒体の塩化リチウ
ムと塩化カルシウムとの重量比に対する吸湿量を示す図
である。FIG. 2 is a diagram showing a moisture absorption amount with respect to a weight ratio of lithium chloride and calcium chloride of a moisture absorption medium of the dehumidifying device.
１…多孔質モジュール、２…ポンプ、３…タンク、４…
ヒータ、５…送風機、６…吸湿媒体、７…湿度センサ、
１０,１１,１２…配管。1 ... Porous module, 2 ... Pump, 3 ... Tank, 4 ...
Heater, 5 ... Blower, 6 ... Hygroscopic medium, 7 ... Humidity sensor,
10, 11, 12 ... Piping.
Claims (2)
除湿する除湿装置において、 上記吸湿媒体(６)は少なくとも塩化リチウム(ＬiＣl)と
塩化カルシウム(ＣaＣl)を含む共に、上記吸湿媒体(６)
中の上記塩化リチウム(ＬiＣl)と上記塩化カルシウム
(ＣaＣl)との重量比が略９５：５から略５０：５０であ
ることを特徴とする除湿装置。1. A dehumidifying device for dehumidifying moisture in the air by absorbing the moisture in a moisture absorbing medium (6), wherein the moisture absorbing medium (6) contains at least lithium chloride (LiCl) and calcium chloride (CaCl), Medium (6)
The above lithium chloride (LiCl) and the above calcium chloride
A dehumidifier characterized by having a weight ratio with (CaCl) of about 95: 5 to about 50:50.
除湿する除湿装置において、 上記吸湿媒体(６)は少なくとも塩化リチウム(ＬiＣl)と
塩化カルシウム(ＣaＣl)を含むと共に、上記吸湿媒体
(６)中の上記塩化リチウム(ＬiＣl)と上記塩化カルシウ
ム(ＣaＣl)との重量比が略８５：１５から略７０：３０
であることを特徴とする除湿装置。2. A dehumidifying device for dehumidifying moisture in the air by absorbing the moisture in the moisture absorbing medium (6), wherein the moisture absorbing medium (6) contains at least lithium chloride (LiCl) and calcium chloride (CaCl), Medium
The weight ratio of the lithium chloride (LiCl) to the calcium chloride (CaCl) in (6) is about 85:15 to about 70:30.
Dehumidifying device characterized by being.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6262234A JPH08117546A (en) | 1994-10-26 | 1994-10-26 | Dehumidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6262234A JPH08117546A (en) | 1994-10-26 | 1994-10-26 | Dehumidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08117546A true JPH08117546A (en) | 1996-05-14 |
Family
ID=17372947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6262234A Pending JPH08117546A (en) | 1994-10-26 | 1994-10-26 | Dehumidifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08117546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001070195A3 (en) * | 2000-03-21 | 2002-03-21 | Mars Inc | A method and apparatus for coating centers |
-
1994
- 1994-10-26 JP JP6262234A patent/JPH08117546A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001070195A3 (en) * | 2000-03-21 | 2002-03-21 | Mars Inc | A method and apparatus for coating centers |
| US6638550B2 (en) | 2000-03-21 | 2003-10-28 | Mars, Inc. | Method for coating solid confectionery centers |
| US7320808B2 (en) | 2000-03-21 | 2008-01-22 | Mars Incorporated | Method and apparatus for coating confectionery centers |
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