JP2002186823A - Humidity control unit - Google Patents
Humidity control unitInfo
- Publication number
- JP2002186823A JP2002186823A JP2000385840A JP2000385840A JP2002186823A JP 2002186823 A JP2002186823 A JP 2002186823A JP 2000385840 A JP2000385840 A JP 2000385840A JP 2000385840 A JP2000385840 A JP 2000385840A JP 2002186823 A JP2002186823 A JP 2002186823A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- reference electrode
- hydrogen
- anode
- potential
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 11
- 238000003487 electrochemical reaction Methods 0.000 claims abstract description 7
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 claims abstract description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 34
- 239000001257 hydrogen Substances 0.000 claims description 33
- 229910052739 hydrogen Inorganic materials 0.000 claims description 33
- 230000001276 controlling effect Effects 0.000 claims description 8
- 239000005518 polymer electrolyte Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 150000002927 oxygen compounds Chemical class 0.000 abstract description 6
- 239000003792 electrolyte Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000007784 solid electrolyte Substances 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 239000000758 substrate Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920000557 Nafion® Polymers 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- -1 hydrogen ions Chemical class 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 102100033041 Carbonic anhydrase 13 Human genes 0.000 description 1
- 101000867860 Homo sapiens Carbonic anhydrase 13 Proteins 0.000 description 1
- 101000649946 Homo sapiens Vacuolar protein sorting-associated protein 29 Proteins 0.000 description 1
- 102100028290 Vacuolar protein sorting-associated protein 29 Human genes 0.000 description 1
- 238000010349 cathodic reaction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Drying Of Gases (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、イオン導電性の固
体電解質を用いた湿度制御装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidity control device using an ionic conductive solid electrolyte.
【０００２】[0002]
【従来の技術】図３は、例えば特開平６−６３３４３号
公報に記載された湿度制御装置を説明するための図であ
る。図３において、１１は電源・制御部、１２は湿度制
御素子であり、１２１の電極１、１２２の固体電解質、
１２３の電極２より構成されている。１２１の電極１
は、ステンレス繊維で構成された基材に白金黒を含む触
媒をペ−ストして構成されている。１２２の固体電解質
は、水素イオン導電性の固体高分子膜（例えばデュポン
社製、商品名ナフィオン）である。１２３の電極２は、
電極１と同じくステンレス繊維で構成された基材に白金
黒を含む触媒をペ−ストして構成されている。なお、１
３はスイッチ２、１４はリ−ド線、１５は除湿側空間、
１６は加湿側空間である。2. Description of the Related Art FIG. 3 is a diagram for explaining a humidity control device described in, for example, Japanese Patent Application Laid-Open No. 6-63343. In FIG. 3, 11 is a power supply / control unit, 12 is a humidity control element, and 121 is a solid electrolyte of electrodes 1 and 122;
It is composed of 123 electrodes 2. 121 electrodes 1
Is made by pasting a catalyst containing platinum black on a substrate made of stainless steel fiber. The solid electrolyte 122 is a hydrogen ion conductive solid polymer membrane (for example, trade name Nafion, manufactured by DuPont). The electrode 2 of 123
As in the case of the electrode 1, a catalyst containing platinum black is pasted on a substrate made of stainless steel fiber. In addition, 1
3 is a switch 2, 14 is a lead wire, 15 is a dehumidifying space,
16 is a humidification side space.
【０００３】１２１の電極１が陽極、１２３の電極２が
陰極になるように両電極間に直流電圧が印加されると、
電極１では Ｈ2Ｏ→２Ｈ+＋（１／２）Ｏ2＋２ｅ- の水の分解反応が起こり、電極２では ２Ｈ+＋（１／２）Ｏ2＋２ｅ-→Ｈ2Ｏ の水の生成反応が起こる。電極１で生成した水素イオン
は固体電解質１２２中を電極１側から電極２側へ向かっ
て移行する。このようにして水（水分；湿気）を除湿側
空間１５から加湿側空間１６へ移動させる。When a DC voltage is applied between both electrodes such that the electrode 1 of 121 becomes an anode and the electrode 2 of 123 becomes a cathode,
At the electrode 1, a water decomposition reaction of H 2 O → 2H + + (１ ／) O 2 + 2e − occurs, and at the electrode 2, water of 2H + + (１ ／) O 2 + 2e − → H 2 O is generated. A reaction occurs. The hydrogen ions generated at the electrode 1 move in the solid electrolyte 122 from the electrode 1 side to the electrode 2 side. In this manner, water (moisture; humidity) is moved from the dehumidifying side space 15 to the humidifying side space 16.
【０００４】[0004]
【発明が解決しようとする課題】従来の湿度制御装置は
以上のように構成されているため、両電極間に印加する
電圧は電源・制御部で調整できるが、個々の電極電位を
制御することができなかった。このため、陽極の電位が
高くなってオゾンを発生する電位より高くなると、電極
１では酸素発生反応の他にオゾン発生反応が加わる。こ
の結果、電極１が酸化劣化し易くなり、湿度制御素子の
寿命が短くなるという問題があった。Since the conventional humidity control apparatus is configured as described above, the voltage applied between the two electrodes can be adjusted by the power supply / control unit. Could not. Therefore, when the potential of the anode becomes higher than the potential for generating ozone, an ozone generating reaction is added to the electrode 1 in addition to the oxygen generating reaction. As a result, there is a problem that the electrode 1 is easily oxidized and deteriorated, and the life of the humidity control element is shortened.
【０００５】したがって本発明は、陽極の電位がオゾン
や活性な酸素または酸素化合物を生成しない領域に留め
るように電極１の電位を制御する機構を備えた湿度制御
装置を提供することを目的とする。また、電極１の代わ
りに電極２の電極電位も制御し、陰極反応を制御する機
構も備えた湿度制御装置を提供することを目的とする。Accordingly, an object of the present invention is to provide a humidity control device having a mechanism for controlling the potential of the electrode 1 so that the potential of the anode remains in a region where ozone, active oxygen or an oxygen compound is not generated. . It is another object of the present invention to provide a humidity control device that also has a mechanism for controlling the electrode potential of the electrode 2 instead of the electrode 1 and controlling the cathode reaction.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明は、電極
１（陽極）及び電極２（陰極）により挟持された水素イ
オン導電性の固体高分子電解質膜と両電極間に直流電圧
を所定の値に印加する電源・制御部とを備え、電気化学
反応により、陽極で水を電気分解し、陰極で水を生成す
る湿度制御器において、電極１の電極電位を制御するた
めの参照電極１および参照電極２を、それぞれ、固体高
分子電解質上の電極１側および電極２側に設けたことを
特徴とする湿度制御装置である。請求項２の発明は、参
照電極１は水素電極であり、該参照電極１に接触する水
素は、参照電極１表面を含む密閉した低圧水素空間に保
持されることを特徴とする請求項１に記載の湿度制御装
置である。請求項３の発明は、参照電極１に接触する水
素が、電気化学反応により参照電極２で水を電気分解
し、参照電極１で水素を生成させることにより供給され
ることを特徴とする請求項２に記載の湿度制御装置であ
る。請求項４の発明は、低圧水素空間における水素ガス
圧が一定（１ａｔｍ）の値になるように、圧力調整弁が
密閉した低圧水素空間に設けられていることを特徴とす
る請求項２または３に記載の湿度制御装置である。According to the first aspect of the present invention, a direct current voltage is applied between a hydrogen ion conductive solid polymer electrolyte membrane sandwiched between an electrode 1 (anode) and an electrode 2 (cathode) and both electrodes. And a power supply / control unit for applying a value to the reference value, and a reference electrode 1 for controlling the electrode potential of the electrode 1 in a humidity controller that electrolyzes water at an anode and generates water at a cathode by an electrochemical reaction. And a reference electrode 2 provided on the electrode 1 side and the electrode 2 side on the solid polymer electrolyte, respectively. The invention according to claim 2 is characterized in that the reference electrode 1 is a hydrogen electrode, and hydrogen that is in contact with the reference electrode 1 is held in a closed low-pressure hydrogen space including the surface of the reference electrode 1. It is a humidity control apparatus of description. The invention according to claim 3 is characterized in that hydrogen coming into contact with the reference electrode 1 is supplied by electrolyzing water at the reference electrode 2 by an electrochemical reaction and generating hydrogen at the reference electrode 1. 2. The humidity control device according to 2. The invention according to claim 4 is characterized in that the pressure regulating valve is provided in a closed low-pressure hydrogen space so that the hydrogen gas pressure in the low-pressure hydrogen space is constant (1 atm). 2. The humidity control device according to item 1.
【０００７】[0007]
【発明の実施の形態】実施の形態１．図１は、本発明の
湿度制御装置の一実施形態を説明するための図である。
図１において、１は電源・制御部であり、電極１（２．
１）の電位を制御しながら電極１（２．１）と電極２
（２．３）の間に直流電圧を印加する装置である。２は
湿度制御素子である。（２．１）は電極１であり、白金
メッキＴｉで構成された基材に白金黒を含む触媒を塗布
したものである。（２．２）は固体高分子電解質であ
り、例えばデュポン社製、商品名ナフィオン１１７を使
用することができる。（２．３）は電極２であり、カー
ボンペーパーで構成された基材に白金黒を含む触媒を分
散させたものである。（２．１．ｃ）は、参照電極１で
あり、固体高分子電解質（２．２）上の電極１と同じ側
の近傍に接触しないように配置されたものであり、電極
１と同様に白金メッキＴｉで構成された基材に白金黒を
含む触媒を塗布したものであり、該基材にリード線を経
由して電源・制御部１に接続している。（２．３．ａ）
は参照電極２であり、カーボンペーパーで構成された基
材に白金黒を含む触媒を分散させたものである。参照電
極１（２．１．ｃ）の表面に接する空間はアクリル製の
樹脂で密閉した定圧水素空間（２．１．ｂ）が形成さ
れ、定圧水素空間（２．１．ｂ）と除湿側空間５を隔て
る隔壁の一部に微小な圧力調整弁（２．１．ａ）が設け
られている。（１．１）は定圧水素空間（２．１．ｂ）
に水素を供給するための電源であり、参照電極１（２．
１．ｃ）と参照電極２（２．１．ａ）の両電極間に接続
されている。（３．１）、（３．２）、（３．３）はそ
れぞれ、スイッチ１、スイッチ２、スイッチ３である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a diagram for explaining an embodiment of the humidity control device of the present invention.
In FIG. 1, reference numeral 1 denotes a power supply / control unit, and electrodes 1 (2.
Electrode 1 (2.1) and electrode 2 while controlling the potential of 1)
This is a device for applying a DC voltage during (2.3). 2 is a humidity control element. (2.1) is an electrode 1, which is obtained by applying a catalyst containing platinum black to a substrate made of platinum-plated Ti. (2.2) is a solid polymer electrolyte. For example, Nafion 117 manufactured by DuPont can be used. (2.3) is an electrode 2 in which a catalyst containing platinum black is dispersed in a base material made of carbon paper. (2.1.c) is a reference electrode 1, which is arranged so as not to be in contact with the vicinity of the same side as the electrode 1 on the solid polymer electrolyte (2.2). It is formed by applying a catalyst containing platinum black to a substrate made of platinum-plated Ti, and is connected to the power supply / control unit 1 via a lead wire. (2.3.a)
Denotes a reference electrode 2 in which a catalyst containing platinum black is dispersed in a base material made of carbon paper. In the space in contact with the surface of the reference electrode 1 (2.1.c), a constant-pressure hydrogen space (2.1.b) sealed with an acrylic resin is formed, and the constant-pressure hydrogen space (2.1.b) and the dehumidifying side are formed. A minute pressure regulating valve (2.1.a) is provided in a part of the partition separating the space 5. (1.1) is a constant pressure hydrogen space (2.1.b)
Is a power source for supplying hydrogen to the reference electrode 1 (2.
1. c) and the reference electrode 2 (2.1.a). (3.1), (3.2), and (3.3) are switch 1, switch 2, and switch 3, respectively.
【０００８】次に動作について記す。スイッチ１（３．
１）は開、スイッチ２（３．２）は開、スイッチ３
（３．３）は閉の状態で電源１（１．１）から参照電極
１と参照電極２の間に参照電極１が陰極になるように電
圧が印加される。Next, the operation will be described. Switch 1 (3.
1) is open, switch 2 (3.2) is open, switch 3
In (3.3), in the closed state, a voltage is applied between the reference electrode 1 and the reference electrode 2 from the power supply 1 (1.1) so that the reference electrode 1 becomes a cathode.
【０００９】参照電極２（２．３．ａ）では Ｈ2Ｏ→２Ｈ+＋（１／２）Ｏ2＋２ｅ- の反応が起こり、参照電極１（２．１．ｃ）では ２Ｈ+＋２ｅ-→Ｈ2 の反応が起こり、水素は定圧水素空間（２．１．ｂ）内
に蓄積していき、やがて１気圧以上の圧になろうとする
と圧力調整弁（２．１．ａ）が作動し内部は１気圧に保
たれる。その後スイッチ３（３．３）は開となる。耐圧
水素空間の圧が１気圧以下に低下した場合、適宜、スイ
ッチ３が閉となり圧を水素生成を行い１気圧に保つ。At the reference electrode 2 (2.3.a), a reaction of H 2 O → 2H + + (1/2) O 2 + 2e − occurs, and at the reference electrode 1 (2.1.c), 2H + + 2e −. → The reaction of H 2 occurs, hydrogen accumulates in the constant-pressure hydrogen space (2.1.b), and when the pressure becomes more than 1 atm, the pressure regulating valve (2.1.a) operates. The inside is kept at 1 atm. Thereafter, the switch 3 (3.3) is opened. When the pressure in the pressure-resistant hydrogen space drops to 1 atm or less, the switch 3 is appropriately closed to generate hydrogen and maintain the pressure at 1 atm.
【００１０】次に、スイッチ１、スイッチ２が閉となり
電極１（２．１）では Ｈ2Ｏ→２Ｈ+＋（１／２）Ｏ2＋２ｅ- の水の分解反応が起こり、電極２（２．３）では ２Ｈ+＋（１／２）Ｏ2＋２ｅ-→Ｈ2Ｏ の水の生成反応が起こる。電極１で生成した水素イオン
は固体電解質（２．２）中を電極１側から電極２側へ向
かって移行する。このようにして水（水分；湿気）を除
湿側空間５から加湿側空間６へ移動させる。Next, the switch 1 and the switch 2 are closed, and a decomposition reaction of water of H 2 O → 2H + + (１ ／) O 2 + 2e − occurs at the electrode 1 (2.1), and the electrode 2 (2) In 3), a reaction of producing water of 2H + + (1/2) O 2 + 2e − → H 2 O occurs. Hydrogen ions generated at the electrode 1 move from the electrode 1 side to the electrode 2 side in the solid electrolyte (2.2). In this manner, water (moisture; humidity) is moved from the dehumidifying side space 5 to the humidifying side space 6.
【００１１】図２は、本発明の湿度制御装置と従来の湿
度制御装置における陽極電位と陰極電位の状態を説明す
るための図である。図２において、通電電流の大きさを
横軸に、縦軸に電極電位を記している。参照電極のない
従来の装置の場合は、陽極電位は陽分極曲線１０に示す
ように電流即ち、電流密度が増大すると陽極電位は上昇
しやがてオゾン発生電位（点線で図示）以上になるとオ
ゾンの生成が開始し湿度制御素子の寿命低下の一因とな
る。ところが本発明の場合は参照電極が作動するので、
陽極電位を測定することができ、この測定結果を基にし
て、陽極電位がオゾン発生電位以上になったときに電源
・制御部１を作動させ、電極１（２．１）と電極２
（２．３）の間に印加されている電圧を低下させ、定電
流電源に切り替えることができる。このようにして陽極
でオゾンの発生を伴うおそれの無い湿度制御を行うこと
ができた。電極２（２．３）の陰極反応の制御も印加電
圧から陽極電位及び固体電解質（２．２）に流れる電流
と膜抵抗の積（オーム損）を差し引く演算処理を行うこ
とにより、陰極電位を検出しながら陰極反応の制御（例
えば水素発生の抑制）を行うことができる。FIG. 2 is a diagram for explaining the states of the anode potential and the cathode potential in the humidity control device of the present invention and the conventional humidity control device. In FIG. 2, the magnitude of the flowing current is shown on the horizontal axis, and the electrode potential is shown on the vertical axis. In the case of the conventional device without a reference electrode, the anodic potential increases as the current, that is, the current density increases, as shown by the anodic polarization curve 10. Starts, which causes a reduction in the life of the humidity control element. However, in the case of the present invention, since the reference electrode operates,
The anode potential can be measured. Based on the measurement result, when the anode potential becomes equal to or higher than the ozone generation potential, the power supply / control unit 1 is operated, and the electrodes 1 (2.1) and 2
The voltage applied during (2.3) can be reduced to switch to a constant current power supply. In this way, it was possible to control the humidity without causing ozone at the anode. The control of the cathode reaction of the electrode 2 (2.3) is also performed by subtracting the anode potential and the product of the current flowing through the solid electrolyte (2.2) and the membrane resistance (ohm loss) from the applied voltage, thereby reducing the cathode potential. Control of the cathode reaction (for example, suppression of hydrogen generation) can be performed while detecting.
【００１２】[0012]
【発明の効果】請求項１の発明は、電極１（陽極）及び
電極２（陰極）により挟持された水素イオン導電性の固
体高分子電解質膜と両電極間に直流電圧を所定の値に印
加する電源・制御部とを備え、電気化学反応により、陽
極で水を電気分解し、陰極で水を生成する湿度制御器に
おいて、電極１の電極電位を制御するための参照電極１
および参照電極２を、それぞれ、固体高分子電解質上の
電極１側および電極２側に設けたことを特徴とする湿度
制御装置であるので、陽極の電位がオゾンや活性な酸素
または酸素化合物を生成しない領域に留めるように電極
１の電位を制御することができ、装置の長寿命化を達成
することができる。また、電極２の電極電位も制御し、
陰極反応を制御する機構も備えることができる。According to the first aspect of the present invention, a DC voltage is applied to a predetermined value between a hydrogen ion conductive solid polymer electrolyte membrane sandwiched between an electrode 1 (anode) and an electrode 2 (cathode) and both electrodes. A reference electrode 1 for controlling an electrode potential of the electrode 1 in a humidity controller that includes a power supply / control unit that performs electrolysis of water at an anode and generates water at a cathode by an electrochemical reaction.
And the reference electrode 2 is provided on the electrode 1 side and the electrode 2 side on the solid polymer electrolyte, respectively, so that the potential of the anode generates ozone, active oxygen or an oxygen compound. The potential of the electrode 1 can be controlled so as to stay in a region where the device is not used, and the life of the device can be extended. Also, the electrode potential of the electrode 2 is controlled,
A mechanism for controlling the cathodic reaction can also be provided.
【００１３】請求項２の発明は、参照電極１は水素電極
であり、該参照電極１に接触する水素は、参照電極１表
面を含む密閉した低圧水素空間に保持されることを特徴
とする請求項１に記載の湿度制御装置であるので、陽極
の電位がオゾンや活性な酸素または酸素化合物を生成し
ない領域に留めるように電極１の電位を一層良好に制御
することができる。According to a second aspect of the present invention, the reference electrode 1 is a hydrogen electrode, and hydrogen in contact with the reference electrode 1 is held in a closed low-pressure hydrogen space including the surface of the reference electrode 1. Since the humidity controller according to item 1, the potential of the electrode 1 can be controlled more favorably so that the potential of the anode remains in a region where ozone, active oxygen or an oxygen compound is not generated.
【００１４】請求項３の発明は、参照電極１に接触する
水素が、電気化学反応により参照電極２で水を電気分解
し、参照電極１で水素を生成させることにより供給され
ることを特徴とする請求項２に記載の湿度制御装置であ
るので、陽極の電位がオゾンや活性な酸素または酸素化
合物を生成しない領域に留めるように電極１の電位を一
層良好に制御することができる。According to a third aspect of the present invention, the hydrogen in contact with the reference electrode 1 is supplied by electrolyzing water at the reference electrode 2 by an electrochemical reaction and generating hydrogen at the reference electrode 1. Therefore, the potential of the electrode 1 can be more favorably controlled so that the potential of the anode remains in a region where ozone, active oxygen or an oxygen compound is not generated.
【００１５】請求項４の発明は、低圧水素空間における
水素ガス圧が一定（１ａｔｍ）の値になるように、圧力
調整弁が密閉した低圧水素空間に設けられていることを
特徴とする請求項２または３に記載の湿度制御装置であ
るので、陽極の電位がオゾンや活性な酸素または酸素化
合物を生成しない領域に留めるように電極１の電位を一
層良好に制御することができる。According to a fourth aspect of the present invention, the pressure regulating valve is provided in a closed low-pressure hydrogen space such that the hydrogen gas pressure in the low-pressure hydrogen space is constant (1 atm). Since the humidity control device is described in 2 or 3, the potential of the electrode 1 can be more favorably controlled so that the potential of the anode remains in a region where ozone, active oxygen, or an oxygen compound is not generated.
【図１】 本発明の湿度制御装置の一実施形態を説明す
るための図である。FIG. 1 is a diagram for describing an embodiment of a humidity control device of the present invention.
【図２】 本発明の湿度制御装置と従来の湿度制御装置
における陽極電位と陰極電位の状態を説明するための図
である。FIG. 2 is a diagram for explaining states of an anode potential and a cathode potential in the humidity control device of the present invention and a conventional humidity control device.
【図３】 特開平６−６３３４３号公報に記載された湿
度制御装置を説明するための図である。FIG. 3 is a diagram for explaining a humidity control device described in Japanese Patent Application Laid-Open No. 6-63343.
１ 電源・制御部、２ 湿度制御素子、２．１ 電極
１、２．２ 固体電解質、２．３ 電極２、 ２．１．
ａ 圧力調整弁、２．１．ｂ 定圧水素空間、２．１．
ｃ 参照電極１、２．３．ａ 参照電極２、５ 除湿側
空間、６ 加湿側空間。1. Power supply / control unit, 2 humidity control element, 2.1 electrode 1, 2.2 solid electrolyte, 2.3 electrode 2, 2.1.
a pressure regulating valve, 2.1. b constant pressure hydrogen space, 2.1.
c Reference electrode 1, 2.3. a Reference electrodes 2, 5 Dehumidification side space, 6 Humidification side space.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D052 EA06 GA01 GA04 GB03 GB04 4K021 AA01 AB25 BA02 CA05 CA06 CA13 CA15 DB18 DB21 DB31 DB43 DB53 DC15 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D052 EA06 GA01 GA04 GB03 GB04 4K021 AA01 AB25 BA02 CA05 CA06 CA13 CA15 DB18 DB21 DB31 DB43 DB53 DC15
Claims (4)
り挟持された水素イオン導電性の固体高分子電解質膜と
両電極間に直流電圧を所定の値に印加する電源・制御部
とを備え、電気化学反応により、陽極で水を電気分解
し、陰極で水を生成する湿度制御器において、電極１の
電極電位を制御するための参照電極１および参照電極２
を、それぞれ、固体高分子電解質上の電極１側および電
極２側に設けたことを特徴とする湿度制御装置。1. A hydrogen ion conductive solid polymer electrolyte membrane sandwiched between an electrode 1 (anode) and an electrode 2 (cathode), and a power supply / control unit for applying a DC voltage to both electrodes at a predetermined value. A reference electrode 1 and a reference electrode 2 for controlling an electrode potential of the electrode 1 in a humidity controller that electrolyzes water at an anode and generates water at a cathode by an electrochemical reaction.
Are provided on the electrode 1 side and the electrode 2 side on the solid polymer electrolyte, respectively.
極１に接触する水素は、参照電極１表面を含む密閉した
低圧水素空間に保持されることを特徴とする請求項１に
記載の湿度制御装置。2. The reference electrode according to claim 1, wherein the reference electrode is a hydrogen electrode, and hydrogen contacting the reference electrode is held in a closed low-pressure hydrogen space including the surface of the reference electrode. Humidity control device.
反応により参照電極２で水を電気分解し、参照電極１で
水素を生成させることにより供給されることを特徴とす
る請求項２に記載の湿度制御装置。3. The method according to claim 2, wherein the hydrogen contacting the reference electrode 1 is supplied by electrolyzing water at the reference electrode 2 by an electrochemical reaction and generating hydrogen at the reference electrode 1. The humidity control device as described.
（１ａｔｍ）の値になるように、圧力調整弁が密閉した
低圧水素空間に設けられていることを特徴とする請求項
２または３に記載の湿度制御装置。4. The pressure regulating valve is provided in a closed low-pressure hydrogen space so that the hydrogen gas pressure in the low-pressure hydrogen space has a constant (1 atm) value. Humidity controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000385840A JP3868739B2 (en) | 2000-12-19 | 2000-12-19 | Humidity control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000385840A JP3868739B2 (en) | 2000-12-19 | 2000-12-19 | Humidity control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002186823A true JP2002186823A (en) | 2002-07-02 |
| JP3868739B2 JP3868739B2 (en) | 2007-01-17 |
Family
ID=18853042
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000385840A Expired - Lifetime JP3868739B2 (en) | 2000-12-19 | 2000-12-19 | Humidity control device |
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| Country | Link |
|---|---|
| JP (1) | JP3868739B2 (en) |
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2000
- 2000-12-19 JP JP2000385840A patent/JP3868739B2/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| JP3868739B2 (en) | 2007-01-17 |
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