JPH08229556A - Electrolytic bath - Google Patents
Electrolytic bathInfo
- Publication number
- JPH08229556A JPH08229556A JP3733695A JP3733695A JPH08229556A JP H08229556 A JPH08229556 A JP H08229556A JP 3733695 A JP3733695 A JP 3733695A JP 3733695 A JP3733695 A JP 3733695A JP H08229556 A JPH08229556 A JP H08229556A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- electrode chamber
- positive electrode
- water
- diaphragm
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000012528 membrane Substances 0.000 claims description 24
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 15
- 239000000460 chlorine Substances 0.000 abstract description 15
- 229910052801 chlorine Inorganic materials 0.000 abstract description 15
- 238000005868 electrolysis reaction Methods 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- NUIURNJTPRWVAP-UHFFFAOYSA-N 3,3'-Dimethylbenzidine Chemical compound C1=C(N)C(C)=CC(C=2C=C(C)C(N)=CC=2)=C1 NUIURNJTPRWVAP-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 206010012735 Diarrhoea Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 208000019902 chronic diarrheal disease Diseases 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 201000006549 dyspepsia Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004211 gastric acid Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電解槽に関するもので、
さらに詳しく言えば、アルカリイオン整水器などに適し
た、膜を用いた電解槽に関するものである。The present invention relates to an electrolytic cell,
More specifically, the present invention relates to an electrolytic cell using a membrane, which is suitable for an alkali ion water conditioner and the like.
【０００２】[0002]
【従来の技術】水の電気分解などに用いられる電解槽
は、主として工業用に用いられていたが、近年は農薬や
産業廃液による飲料水の汚染といった社会問題がクロー
ズアップされてきたことや、消費者の健康への関心が高
まってきたことにより、家庭用にアルカリイオン整水器
が普及するようになり、これに搭載されることによって
電解槽が家庭用に普及してきている。2. Description of the Related Art Electrolyzers used for electrolysis of water have been mainly used for industrial purposes. In recent years, however, social problems such as pollution of drinking water by agricultural chemicals and industrial waste liquid have been highlighted, and As consumer interest in health has increased, alkaline ionized water devices have come into widespread use in households, and by mounting the alkaline ionized water conditioners in them, electrolytic cells have become popular in households.
【０００３】このようなアルカリイオン整水器が普及し
たのは、アルカリイオン水を飲用することによって消化
不良、慢性下痢、胃酸過多などの症状を緩和することが
できるという効果があると言われているためで、今後も
一層普及するものと予測されている。The popularization of such alkaline ionized water purifiers is said to be effective in alleviating symptoms such as indigestion, chronic diarrhea, and excessive gastric acid by drinking alkaline ionized water. Therefore, it is predicted that it will become more popular in the future.
【０００４】上記したアルカリイオン整水器には、正極
板を収容した正極室と、負極板を収容した負極室と、前
記正極室と負極室とを分離するように配置された隔膜と
が備えられ、電解槽に前記正極板と負極板とが前記隔膜
を介して対向するように配置されてなり、前記隔膜によ
り、原水中に含有される塩化物イオンが電気分解によっ
て酸化され、ＨＣｌＯ・ＣｌＯ- といった残留塩素が正
極室から負極室に移行してアルカリイオン水にカルキ臭
が付かないようにしている。The above alkaline ion water conditioner is provided with a positive electrode chamber containing a positive electrode plate, a negative electrode chamber containing a negative electrode plate, and a diaphragm arranged to separate the positive electrode chamber and the negative electrode chamber. The positive electrode plate and the negative electrode plate are disposed in the electrolytic cell so as to face each other with the diaphragm interposed therebetween, and the chloride ion contained in the raw water is electrolyzed by the diaphragm to generate HClO.ClO. - such residual chlorine are chlorine smell alkaline ionized water migrate from the positive electrode chamber to the negative electrode chamber is prevented adhere.
【０００５】上記した隔膜には残留塩素の移行が阻止で
きるように非多孔性膜が用いられている。A non-porous membrane is used for the above-mentioned diaphragm so as to prevent transfer of residual chlorine.
【０００６】[0006]
【発明が解決しようとする課題】上記した従来の電解
槽、特にアルカリイオン整水器などに用いられる電解槽
では、隔膜としてイオン交換膜のような非多孔性膜を用
いた場合でも、膜中に保持されている水に残留塩素が溶
解したり、膜中に保持されている水を媒体として残留塩
素が拡散することがあり、負極室に得られるアルカリイ
オン水中に残留塩素が移行するのを確実に阻止すること
ができないという問題があった。SUMMARY OF THE INVENTION In the above-mentioned conventional electrolytic cell, particularly in the electrolytic cell used for alkaline ionized water conditioner, even when a non-porous membrane such as an ion exchange membrane is used as a diaphragm, Residual chlorine may dissolve in the water retained in the membrane, or residual chlorine may diffuse using the water retained in the film as a medium, and the residual chlorine may migrate to the alkaline ionized water obtained in the negative electrode chamber. There was a problem in that it could not be stopped reliably.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するた
め、本発明は、正極板を収容した正極室と、負極板を収
容した負極室と、前記正極室と負極室とを分離するよう
に配置された隔膜とを有し、前記正極板と負極板とが前
記隔膜を介して容器内に配置された電解槽であって、前
記負極室から隔膜を介して正極室に向かう水流を常時存
在させるようにしたことを特徴とするものである。In order to solve the above problems, the present invention provides a positive electrode chamber containing a positive electrode plate, a negative electrode chamber containing a negative electrode plate, and a positive electrode chamber and a negative electrode chamber separated from each other. An electrolytic cell having a diaphragm disposed therein, wherein the positive electrode plate and the negative electrode plate are disposed in a container through the diaphragm, and there is always a water flow from the negative electrode chamber to the positive electrode chamber through the diaphragm. It is characterized by having been made to do.
【０００８】また、本発明は、前記電解槽において、隔
膜として多孔性膜を用い、正極室と負極室との間の差圧
を与えることによって負極室から隔膜を介して正極室に
向かう水流を生じさせるようにしたことを特徴とするも
のである。Further, in the present invention, in the electrolytic cell, a porous membrane is used as a diaphragm, and by applying a pressure difference between the positive electrode chamber and the negative electrode chamber, a water flow from the negative electrode chamber to the positive electrode chamber through the diaphragm is generated. It is characterized by being caused to occur.
【０００９】また、本発明は、前記電解槽において、多
孔性膜は実質的に水によって膨潤しないものであること
を特徴とするものである。The present invention is also characterized in that, in the above-mentioned electrolytic cell, the porous membrane is not substantially swollen by water.
【００１０】[0010]
【作用】本発明によれば、負極室から隔膜を介して正極
室に向かう水流を、隔膜として多孔性膜を用い、正極室
と負極室との間に差圧を与えることによって常時存在さ
せるようにすると、水流が膜の孔を通って負極室から正
極室に移行することになり、それによって残留塩素が正
極室から負極室に移行するのを阻止することができ、し
かも前記多孔性膜として実質的に水によって膨潤しない
多孔性膜を用いることによって膜の孔以外の部分には水
が保持されなくなり、それを媒体として正極室から負極
室に残留塩素が拡散するのを阻止することができる。According to the present invention, the water flow from the negative electrode chamber to the positive electrode chamber through the diaphragm is always made to exist by using a porous membrane as the diaphragm and applying a differential pressure between the positive electrode chamber and the negative electrode chamber. If so, the water flow will move from the negative electrode chamber to the positive electrode chamber through the pores of the membrane, thereby preventing residual chlorine from migrating from the positive electrode chamber to the negative electrode chamber, and yet as the porous membrane. By using a porous membrane that does not substantially swell with water, water is not retained in the portions other than the pores of the membrane, and it is possible to prevent residual chlorine from diffusing from the positive electrode chamber to the negative electrode chamber using it as a medium. .
【００１１】[0011]
【実施例】以下、本発明を実施例に基づいて説明する。EXAMPLES The present invention will be described below based on examples.
【００１２】本発明の特徴は、隔膜として多孔性膜を用
い、正極室と負極室との間に差圧を与えることによって
負極室から隔膜を介して正極室に向かう水流を常時存在
させるようにし、それによって正極室から負極室へ残留
塩素が移行しないようにしたものである。A feature of the present invention is that a porous membrane is used as a diaphragm, and a differential pressure is applied between the positive electrode chamber and the negative electrode chamber so that a water flow from the negative electrode chamber to the positive electrode chamber through the diaphragm is always present. Therefore, residual chlorine is prevented from migrating from the positive electrode chamber to the negative electrode chamber.
【００１３】すなわち、多孔性膜を介して拡散する水の
量は含まず、電気分解によって失われる水の量は無視
し、正極室に流入する水量をＡ（リットル／分）、正極
室から流出する水量をＢ（リットル／分）、負極室に流
入する水量をＣ（リットル／分）、負極室から流出する
水量をＤ（リットル／分）とすると、通常はＡ＋Ｃ＝Ｂ
＋Ｄの関係が成立するが、Ａ＜ＢかつＣ＞Ｄになるよう
にすることによって負極室の内圧を正極室の内圧より大
にすることができ、それによって隔膜を介してＣ−Ｄの
水量の水が負極室から正極室へ流れることになる。That is, the amount of water diffused through the porous membrane is not included, the amount of water lost by electrolysis is ignored, and the amount of water flowing into the positive electrode chamber is A (liter / minute) and the amount of water flowing out from the positive electrode chamber is out. Assuming that the amount of water to be supplied is B (liter / minute), the amount of water flowing into the negative electrode chamber is C (liter / minute), and the amount of water flowing out from the negative electrode chamber is D (liter / minute), A + C = B
Although the relationship of + D is established, the internal pressure of the negative electrode chamber can be made higher than the internal pressure of the positive electrode chamber by setting A <B and C> D, whereby the water amount of C-D through the diaphragm. This water will flow from the negative electrode chamber to the positive electrode chamber.
【００１４】なお、前記正極室に流入する水量Ａ（リッ
トル／分）、正極室から流出する水量Ｂ（リットル／
分）、負極室に流入する水量Ｃ（リットル／分）、負極
室から流出する水量Ｄ（リットル／分）の絶対量につい
ては、使用する電解槽の容量、正極板や負極板の面積、
得ようとするアルカリイオン水のｐＨ値や水量に基づい
て決定すればよい。The amount of water A flowing into the positive electrode chamber (liter / minute) and the amount of water flowing out of the positive electrode chamber B (liter / minute)
Min), the amount of water C (liter / min) flowing into the negative electrode chamber, and the amount of water D (liter / min) flowing out of the negative electrode chamber, the absolute amount of the electrolytic cell used, the area of the positive electrode plate or the negative electrode plate,
It may be determined based on the pH value and the amount of the alkaline ionized water to be obtained.
【００１５】次に、正極板および負極板として１０ｃｍ
×２０ｃｍのチタン板に白金をコーティングしたもの
を、隔膜として孔径が０．５μｍの合成樹脂からなる多
孔膜を用い、容器としてＡＢＳ樹脂製のものを準備し、
前記正極板と負極板とを隔膜から０．５ｃｍ離れた所に
位置するように容器内に収容して電解槽を製作し、残留
塩素が負極室から検出されるかどうかを調査するために
原水として蒸留水１リットルに塩化ナトリウムを２９．
２２ｇ溶解したものを準備し、正極室に流入する水量Ａ
（リットル／分）、正極室から流出する水量Ｂ（リット
ル／分）、負極室に流入する水量Ｃ（リットル／分）、
負極室から流出する水量Ｄ（リットル／分）を種々変化
させて０．１Ａの電流で電気分解し、１５分後に負極室
から流出するアルカリイオン水について、ｏ−トリジン
法による比色試験によって残留塩素の濃度を測定し、結
果を表１に示す。Next, 10 cm as a positive electrode plate and a negative electrode plate
A 20 cm titanium plate coated with platinum was used as a diaphragm, a porous film made of a synthetic resin having a pore diameter of 0.5 μm was used, and a container made of ABS resin was prepared.
The positive electrode plate and the negative electrode plate were housed in a container so as to be located 0.5 cm away from the diaphragm to prepare an electrolytic cell, and raw water was used to investigate whether residual chlorine was detected in the negative electrode chamber. As sodium chloride in 1 liter of distilled water as 29.
Prepare 22g of melted water, the amount of water flowing into the positive electrode chamber A
(Liter / min), water amount B (liter / min) flowing out from the positive electrode chamber, water amount C (liter / min) flowing into the negative electrode chamber,
The amount of water D (liter / minute) flowing out from the negative electrode chamber was variously changed and electrolyzed at a current of 0.1 A, and the alkaline ionized water flowing out from the negative electrode chamber after 15 minutes remained by a colorimetric test by the o-tolidine method. The chlorine concentration was measured and the results are shown in Table 1.
【００１６】[0016]
【表１】 [Table 1]
【００１７】表１から、正極室に流入する水量Ａ（リッ
トル／分）、正極室から流出する水量Ｂ（リットル／
分）、負極室に流入する水量Ｃ（リットル／分）、負極
室から流出する水量Ｄ（リットル／分）の間にＡ＜Ｂか
つＣ＞Ｄなる関係が成立するものからは残留塩素が検出
されなかったことがわかる。From Table 1, the amount A of water flowing into the positive electrode chamber (liter / min) and the amount B of water flowing out of the positive electrode chamber (liter / min)
Min), the amount of water flowing into the negative electrode chamber C (liter / min), and the amount of water flowing out of the negative electrode chamber D (liter / min) satisfy the relationship of A <B and C> D. You can see that it was not done.
【００１８】なお、上記した多孔性膜に代えて実質的に
水によって膨潤しない多孔性膜、たとえばポリオレフィ
ン系樹脂やビニル系樹脂などの疎水性合成樹脂からなる
膜、ガラスやセラミックなどの無機質を材質とした膜ま
たは材質自身は水によって膨潤するが膜表面に物理的あ
るいは化学的処理を施すことによって被覆層を形成した
膜のような、膜の材質内部に水が浸透しない膜を用いれ
ば、多孔性膜の孔以外の部分に水が保持されなくなり、
この水を媒体として正極室から負極室に水が拡散し、そ
れによって残留塩素が負極室に拡散するのを防止できる
ので、上記した効果を一層高めることができる。In place of the above-mentioned porous film, a porous film that does not substantially swell with water, for example, a film made of a hydrophobic synthetic resin such as a polyolefin resin or a vinyl resin, or an inorganic material such as glass or ceramic is used. The membrane or material itself swells with water, but if a membrane that does not allow water to penetrate into the material of the membrane, such as a membrane with a coating layer formed by physically or chemically treating the membrane surface, Water is no longer retained in areas other than the pores of the flexible membrane,
Since water can be prevented from diffusing from the positive electrode chamber to the negative electrode chamber by using this water as a medium, and thereby residual chlorine can be prevented from diffusing to the negative electrode chamber, the above-described effect can be further enhanced.
【００１９】なお、上記した実質的に水によって膨潤さ
れない多孔膜を使用するに際し、膜と水とのなじみを良
くして電気分解時の抵抗の上昇を防止するために膜が水
に接触する部分に限り親水化処理を施すことは有効であ
る。When using the above-mentioned porous membrane which is not substantially swollen by water, the portion where the membrane comes into contact with water in order to improve the compatibility between the membrane and water and prevent an increase in resistance during electrolysis. It is effective to apply hydrophilic treatment only to the above.
【００２０】[0020]
【発明の効果】上記したとおりであるから、本発明は、
水の電気分解によって負極室に得られるアルカリイオン
水中に残留塩素が移行しなくなるので、アルカリイオン
整水器用の電解槽として使用することができる。As described above, the present invention provides
Since residual chlorine does not transfer to the alkaline ionized water obtained in the negative electrode chamber by the electrolysis of water, it can be used as an electrolytic cell for an alkaline ionized water conditioner.
Claims (3)
容した負極室と、前記正極室と負極室とを分離するよう
に配置された隔膜とを有し、前記正極板と負極板とが前
記隔膜を介して容器内に配置された電解槽であって、前
記負極室から隔膜を介して正極室に向かう水流を常時存
在させるようにしたことを特徴とする電解槽。1. A positive electrode plate containing a positive electrode plate, a negative electrode chamber containing a negative electrode plate, and a diaphragm arranged to separate the positive electrode chamber and the negative electrode chamber, the positive electrode plate and the negative electrode plate. Is an electrolyzer arranged in the container via the diaphragm, and a water flow from the negative electrode chamber to the positive electrode chamber via the diaphragm is always present.
して多孔性膜を用い、正極室と負極室との間の差圧によ
って負極室から隔膜を介して正極室に向かう水流を生じ
させるようにしたことを特徴とする電解槽。2. The electrolytic cell according to claim 1, wherein a porous membrane is used as the diaphragm so that a water flow from the negative electrode chamber to the positive electrode chamber via the diaphragm is generated by a pressure difference between the positive electrode chamber and the negative electrode chamber. The electrolytic cell characterized by
膜は実質的に水によって膨潤しないものであることを特
徴とする電解槽。3. The electrolytic cell according to claim 2, wherein the porous membrane does not substantially swell with water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3733695A JPH08229556A (en) | 1995-02-24 | 1995-02-24 | Electrolytic bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3733695A JPH08229556A (en) | 1995-02-24 | 1995-02-24 | Electrolytic bath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08229556A true JPH08229556A (en) | 1996-09-10 |
Family
ID=12494782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3733695A Pending JPH08229556A (en) | 1995-02-24 | 1995-02-24 | Electrolytic bath |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08229556A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006502855A (en) * | 2002-10-16 | 2006-01-26 | アクアテック インターナショナル コーポレイション | Method for producing ion exchange medium |
-
1995
- 1995-02-24 JP JP3733695A patent/JPH08229556A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006502855A (en) * | 2002-10-16 | 2006-01-26 | アクアテック インターナショナル コーポレイション | Method for producing ion exchange medium |
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