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JP3560413B2 - Power supply mechanism for hydrogen / oxygen generator - Google Patents
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JP3560413B2 - Power supply mechanism for hydrogen / oxygen generator - Google Patents

Power supply mechanism for hydrogen / oxygen generator Download PDF

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Publication number
JP3560413B2
JP3560413B2 JP10686596A JP10686596A JP3560413B2 JP 3560413 B2 JP3560413 B2 JP 3560413B2 JP 10686596 A JP10686596 A JP 10686596A JP 10686596 A JP10686596 A JP 10686596A JP 3560413 B2 JP3560413 B2 JP 3560413B2
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Japan
Prior art keywords
pure water
hydrogen
power supply
electrode plate
oxygen generator
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JP10686596A
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JPH09291387A (en
Inventor
宏子 小林
清司 平井
信一 安井
輝行 森岡
宙幸 原田
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Shinko Pantec Co Ltd
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Kobelco Eco Solutions Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

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  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、純水容器内に、水電解セルを収容した水素・酸素発生器を備えた水素・酸素発生装置の給電機構に関するものであり、詳細には、純水中の水電解セルへ電圧を供給するための給電手段と水電解セルの電極板との給電機構に関する。
【0002】
【従来の技術】
従来より、例えば、半導体製造工場など水素ガス、酸素ガスを消費する工場では、図4に示すような構造を有する水電解セル2を用いて純水を電気分解していた。この水電解セル2は、固体電解質26、例えば、カチオン交換膜(フッ素樹脂系スルフォン酸カチオン交換膜、例えば、デュポン社製「ナフィオン117」)の両面に白金属族金属等からなる多孔質の陽極22及び陰極23を接合した構造の固体電解質膜21を隔膜として用いることによって水電解セル内を陽極室と陰極室とに分離した構造を有しており、純水を陽極側に供給しながら図示しない電極板に高電圧を付加して純水を電気分解し、陽極側から酸素ガスを、陰極側から水素ガスをそれぞれ発生している。ここで、電解セルの陽極側では、2HO→O+4H+4eのような反応が起こり酸素ガスが発生し、陰極側では、4H+4e→2Hの反応が起こり水素ガスが発生しているのである。
【0003】
この基本的な機構を用いて、特に、水電解セルを純水容器に浸漬する構成を採用することによって、高純度でしかも高圧の水素ガス、酸素ガスを供給することの可能な水素・酸素発生装置を、本発明者等が既に特願平7−24737号「水素・酸素ガス発生装置」において示している。
【0004】
これは、図5に示すように、純水容器3に水電解セル2を浸漬した水素・酸素発生器1を備えるとともに、その酸素ガス気液分離室4及び水素ガス気液分離装置7の水面とガス圧力を制御できるようにして、酸素側と水素側のガス圧力の差圧を所定の小さい値にするように構成したものである。これにより、水電解セルの陽極室と陰極室とを分離している固体電解質膜などの隔膜に作用する差圧を小さくでき、隔膜の破損の防止、水電解セルのシール部からのガスの漏洩の防止が可能で、その結果発生ガス圧力を高くすることができるのである。
【0005】
【発明が解決しようとする課題】
ところで、水素・酸素発生器を備えた水素・酸素発生装置は、上述したように高電圧を供給すべき水電解セルが純水容器内部に収容され、水電解セルの周囲には、純水が満たされている。
【0006】
そのため、従来は、高電圧を供給するための給電手段であるケーブルは、図2に示すように、純水容器3外部に配設された固定金具本体41を通過して純水容器3内にまで侵入して、水電解セル2の電極板12に固着されていた。この固着部分を拡大したものが図3である。水電解セルの電極板12には、ケーブル13の被覆材を一部剥ぎ取って、はんだ付け、ボルト・ナット等の手段で導線を直接電極板に固着し、その後、導線部分をエポキシ樹脂等の有機系のシール剤で覆っていた。
【0007】
しかしながら、上記ケーブルは、銅、錫メッキした銅などによって形成される導線に被覆材が被覆されているのみであり、これら被覆材およびシール剤は常時純水容器内の純水中に浸清している。また、上記シール剤が完全に金属部分を覆っていない場合は、導線部分までもが純水に接することになる。
【0008】
そのため、高電圧を供給する際にケーブルで発熱した熱が、純水の温度を上昇させて水素・酸素発生装置の運転条件を悪化させたり、高電圧の供給によってケーブル端部が熱をもって被覆材を劣化させ、劣化した被覆材や、該被覆材の隙間から純水中に露出した導線部分が純水に不純物として溶出して、発生する酸素・水素ガスの高純度化を阻害する等の問題があった。
【0009】
また、純水中に溶出した上記不純物が固体電解質膜に付着して該膜を劣化させ、寿命を短くするという問題点等も生じていた。
【0010】
さらに、上記不純物が純水に導電性を付与して純水容器にまで漏電する恐れがあった。
【0011】
【課題を解決するための手段】
上記問題点を解決するために、本発明は、給電手段の電極板に対する接続方法を変更して、給電手段であるケーブル自体を純水容器内の純水と完全に離間させることとした。これにより、ケーブルからの不純物が純水中に溶出することが防げ、また、安全に高純度の水素・酸素を提供することができる。
【0012】
【発明の実施の形態】
本発明の水素・酸素発生装置の給電機構は、水電解セルを純水容器内に収容した水素・酸素発生器から構成される水素・酸素発生装置において、上記純水容器の外周部と水電解セルの電極板との電気的な接続機構を示したものである。
【0013】
すなわち、上記純水容器の外周部と、純水容器内に収容された水電解セルの電極板とを中空管によって電気的に絶縁状態で接続している。
【0014】
そして、該中空管内を電気的に絶縁状態となるように給電手段を貫通させ、該給電手段の一端は電極板に、もう一端は高電圧を供給することのできる電源と接続させている。
【0015】
更に、給電手段、および給電手段と電極板との接触箇所は、純水容器内の純水とは完全に離間するように、上記中空間とは対の位置になる電極板の反対面に一端が閉じた蓋部材を電気的に絶縁状態となるよう電極板に接続している。
【0016】
これにより、給電手段が純水容器内の純水に接触することがなくなり、また、給電手段と電極板との接続部分も完全に純水とは離間されるため、給電手段の不純物が水素および酸素の原料となる純水とは全く接触しない。
【0017】
従って、純水容器内の純水に給電手段による不純物が溶出する恐れがなくなり、同時に該溶出によって起こる上述した弊害も防ぐことが出来るものである。
【0018】
【実施例】
以下、図面に基づいて本発明の水素・酸素発生装置の給電機構について詳細に説明する。
【0019】
図1は、本給電機構の一例であり、基本的な概念を示すものである。ここで、外周に位置しているのは、純水容器3の一部分であり、純水容器3の内部には純水が満たされている。また、純水容器3の内部に収容されているのは円筒状の水電解セル2であり、図示しない支持台の上にボルトおよびナットで固定されている。また、水電解セル2の両端部には、一部分が突出した円盤状の電極板12が配設されている。
【0020】
そして、非導電材からなり、且つ、密閉性も備えた絶縁挟装材14を介して、純水容器3の内壁面と電極板12の突出部分とを接続しているのが中空管11である。中空管11は、その両端部にフランジ部を有しており、このフランジ部を非導電材の又は非導電材で絶縁被覆した導電材のボルトおよびナットで固定することによって純水容器3および電極板12とを接続している。
【0021】
このような中空管の内部を電気的に絶縁状態で挿通しているのが給電手段であるケーブル13である。ケーブル13は、電極板12とは電気的に接続状態になるように電極板12に接続されている。
【0022】
また、電極板12における中空管11と対になる位置には別の絶縁挟装部材14を介して蓋部材15を設けている。この蓋部材15は電極板12の裏側に突出したケーブル13との接続部分に接触しないようにフランジ部を有しており、このフランジ部を非導電材の又は非導電材で絶縁被覆した導電材のボルトおよびナットで固定することによって電極板12と接続されている。
【0023】
上記構成を有することによって、給電手段であるケーブル13およびケーブル13と電極板12との接続箇所は完全に純水容器3内の純水とは離間した状態で、電極板12に電圧を供給することができるものである。
【0024】
以下、各構成部材について詳細に説明する。
【0025】
まず、上記純水容器3は、耐圧性、純水に対する耐溶出性等を考慮して、ステンレス鋼(SUS)によって形成されている。また、水電解セル2に用いる電極板12は、耐食性等を考慮してチタン(Ti)で形成されている。ここで、純水容器3と電極板12とは導電材料であり、これらが電気的に接続されていると純水容器3までもが電極板12と同様に高電圧になって非常に危険なため、これらは、電気的に絶縁した状態で接続しなければならない。また、純水容器3の内圧が運転時に9.9Kg/cmにまで達すること、及び純水への耐溶出性を考慮すれば中空管は適度な強度を有し、溶出しにくいステンレス鋼(SUS)製の筒を用いる必要がある。
【0026】
これらを考慮すれば、上記中空管11は、絶縁性を有する絶縁挟装材14を介して、電極板12と接続する必要がある。一方、中空管11と純水容器3とは、同電位であっても何等問題がないので、図1では絶縁挟装材14を介して接続しているが、直接中空間11を純水容器3内壁に溶接することも可能である。
【0027】
また、中空管11の形状としては、水電解セル2の位置が、組立てによる誤差、純水容器3内の圧力の変化および温度変化等の作用により位置が若干移動する場合があるため、この移動に柔軟に対応することができるように蛇腹状であることが好ましい。蛇腹状の筒としては、例えばベローズを用いればよい。
【0028】
また、接続部分に挟装する上記絶縁挟装材14としては絶縁性、純水への耐溶出性、および強度等を考慮すれば、シリコン樹脂若しくはフッ素樹脂等を主成分とするガスケット又は繊維強化プラスチック(FRP)板等を用いることが好ましい。
【0029】
また、接続手段として用いる上記ボルトおよびナットも、絶縁性、純水への耐溶出性および強度等の理由から非導電性の上記絶縁挟装材と同様の素材で構成されていることが好ましい。また、これら非導電材で絶縁被覆した導電材のボルトおよびナットも用いることができる。ボルトおよびナットが絶縁性を有することで、絶縁挟装材14を介在させて電極板12と中空管11とを固定しても、これらが同電位となることを防げる。
【0030】
ケーブル13は、銅、アルミニウムまたは錫でメッキした銅からなる導線を高分子絶縁体等の被覆材で被覆された公知のものを用いればよい。そして、ケーブル13は電極板12とは、電気的に接続状態になるよう被覆材を剥いだ状態で電極板12に接続されている。ここでの接続方法としては、周知の圧着端子等に一旦導線を固着して、電極板12にボルト等で接続する方法等を用いればよい。
【0031】
なお、中空間11と純水容器3側との接続部分の純水容器側を、何らかの絶縁部材を用いて取り外し可能で且つ中央にケーブルが通過できる穴部を有する蓋で保護しておけば、不注意による漏電を防ぐことができる。
【0032】
また、上記蓋部材15は、ケーブル13と電極板12との接続箇所が、図示の如く電極板12を貫通している場合に有効である。
【0033】
上記各部材の接続方法については基本的な概念のみを示しているため、水素・酸素発生装置の運転時の純水容器3内外の圧力差、水素・酸素ガスの発生量、純水の漏れ等を考慮して、周知の密閉部材等を適宜箇所に設ければよい。
【0034】
なお、ここに記載した給電機構は一例であり、上記純水容器3と電極板12とを中空管11によって電気的に絶縁状態で接続し、該中空管11内にケーブルを挿通させ、更に、給電手段、および給電手段と電極板との接続箇所は、純水容器内の純水とは完全に離間させるという条件を満たしていれば、他の構成を有することも可能であり、適宜設計変更可能である。
【0035】
また、上記水電解セル2の固体電解質としては、例えば、カチオン交換膜(フッ素樹脂系スルフォン酸カチオン交換膜、例えば、デュポン社製「ナフィオン117」)等の固体高分子電解質膜を用いることができる。
【0036】
【発明の効果】
本発明の水素・酸素発生装置の給電機構は、完全に給電手段および供給手段と水電解セルの電極板との接続箇所を純水容器内の純水から離間することができる。
【0037】
そのため、給電手段として用いていたケーブルを構成する部材が水素および酸素の原料となる純水に不純物として溶出することがないため、純水の汚染、および隔膜の劣化を防止することができる。また、ケーブルの先端部も純水と接触することがなく、漏電等の危険性を防止することができる。
【0038】
従って、本発明の給電機構を用いれば、純水に不要な給電部材等が接触しないため、原料となる純水に不純物が溶出することを防ぐことができ、安全に高純度の水素および酸素を提供することができる。
【図面の簡単な説明】
【図1】本発明の水素・酸素発生装置の給電機構の実施例の概略断面図である。
【図2】従来の水素・酸素発生装置の給電機構の概略断面図である。
【図3】図2の部分拡大断面図である。
【図4】水電解セルの部分概略断面図である。
【図5】水素・酸素発生装置の部分概略図である。
【符号の説明】
1…水素・酸素発生装置
2…水電解セル
3…純水容器
4…酸素ガス気液分離室
7…水素ガス気液分離装置
11…中空管
12…電極板
13…ケーブル
14…絶縁挟装部材
15…蓋部材
21…固体電解質膜
22…陽極
23…陰極
24…陽極室
25…陰極室
26…固体電解質
41…固定金具本体
42…パッキン
44…パッキン押さえ
45…ユニオンナット
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a power supply mechanism of a hydrogen / oxygen generator including a hydrogen / oxygen generator accommodating a water electrolysis cell in a pure water container. The present invention relates to a power supply mechanism for supplying power to an electrode plate of a water electrolysis cell and a power supply unit for supplying water.
[0002]
[Prior art]
Conventionally, for example, in a factory that consumes hydrogen gas and oxygen gas, such as a semiconductor manufacturing factory, pure water is electrolyzed using a water electrolysis cell 2 having a structure as shown in FIG. The water electrolysis cell 2 includes a solid electrolyte 26, for example, a cation exchange membrane (fluororesin sulfonic acid cation exchange membrane, for example, “Nafion 117” manufactured by DuPont) on both sides of a porous anode made of a white metal group metal or the like. The inside of the water electrolysis cell is separated into an anode chamber and a cathode chamber by using the solid electrolyte membrane 21 having a structure in which the cathode 22 and the cathode 23 are joined as a diaphragm. Pure water is electrolyzed by applying a high voltage to the electrode plate not to generate oxygen gas from the anode side and hydrogen gas from the cathode side. Here, on the anode side of the electrolytic cell, a reaction such as 2H 2 O → O 2 + 4H + + 4e occurs and oxygen gas is generated, and on the cathode side, a reaction of 4H + + 4e → 2H 2 occurs and hydrogen gas is generated. It is happening.
[0003]
Hydrogen / oxygen generation that can supply high-purity and high-pressure hydrogen gas and oxygen gas by using this basic mechanism and immersing the water electrolysis cell in a pure water container. The present inventors have already shown the apparatus in Japanese Patent Application No. 7-24737 "Hydrogen / Oxygen Gas Generator".
[0004]
This comprises a hydrogen / oxygen generator 1 in which a water electrolysis cell 2 is immersed in a pure water container 3 as shown in FIG. 5, and a water surface of an oxygen gas / liquid separation chamber 4 and a hydrogen gas / liquid separation device 7. And the gas pressure can be controlled so that the pressure difference between the gas pressure on the oxygen side and the gas pressure on the hydrogen side is set to a predetermined small value. As a result, the differential pressure acting on the membrane such as the solid electrolyte membrane separating the anode chamber and the cathode chamber of the water electrolysis cell can be reduced, preventing the membrane from being damaged and leaking gas from the sealing portion of the water electrolysis cell. Can be prevented, and as a result, the generated gas pressure can be increased.
[0005]
[Problems to be solved by the invention]
By the way, in a hydrogen / oxygen generator equipped with a hydrogen / oxygen generator, a water electrolysis cell to be supplied with a high voltage is housed inside a pure water container as described above, and pure water is supplied around the water electrolysis cell. be satisfied.
[0006]
For this reason, conventionally, a cable serving as a power supply means for supplying a high voltage passes through a fixing metal body 41 provided outside the pure water container 3 and enters the inside of the pure water container 3 as shown in FIG. And was fixed to the electrode plate 12 of the water electrolysis cell 2. FIG. 3 is an enlarged view of the fixed portion. On the electrode plate 12 of the water electrolysis cell, a part of the covering material of the cable 13 is peeled off, and the conductor is directly fixed to the electrode plate by means such as soldering, bolts and nuts. It was covered with an organic sealant.
[0007]
However, in the above cable, only a conductor formed of copper, tin-plated copper, or the like is coated with a coating material, and the coating material and the sealant are constantly immersed in pure water in a pure water container. ing. Further, when the sealing agent does not completely cover the metal portion, even the conductive wire portion comes into contact with pure water.
[0008]
Therefore, the heat generated by the cable when supplying a high voltage raises the temperature of the pure water, deteriorating the operating conditions of the hydrogen / oxygen generator. Problems such as deterioration of the coating material, and the deteriorated coating material and the conductor exposed in pure water from the gap between the coating materials are eluted as impurities in the pure water, impeding the purification of the generated oxygen and hydrogen gas. was there.
[0009]
In addition, the impurities eluted in pure water adhere to the solid electrolyte membrane to deteriorate the membrane and shorten the life of the membrane.
[0010]
Further, there is a fear that the impurities impart conductivity to the pure water and leak to the pure water container.
[0011]
[Means for Solving the Problems]
In order to solve the above problem, the present invention changes the connection method of the power supply means to the electrode plate, and completely separates the cable itself as the power supply means from pure water in the pure water container. Thereby, elution of impurities from the cable into pure water can be prevented, and high-purity hydrogen / oxygen can be safely provided.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
The power supply mechanism of the hydrogen / oxygen generator according to the present invention is a hydrogen / oxygen generator comprising a hydrogen / oxygen generator containing a water electrolysis cell in a pure water container. 2 shows an electrical connection mechanism between a cell and an electrode plate.
[0013]
That is, the outer peripheral portion of the pure water container is electrically connected to the electrode plate of the water electrolysis cell housed in the pure water container by the hollow tube.
[0014]
The power supply means is penetrated so that the inside of the hollow tube is electrically insulated. One end of the power supply means is connected to the electrode plate, and the other end is connected to a power supply capable of supplying a high voltage.
[0015]
Further, the power supply means, and a contact point between the power supply means and the electrode plate are provided at one end on an opposite surface of the electrode plate which is opposite to the inner space so as to be completely separated from pure water in the pure water container. Is connected to the electrode plate so that the closed lid member is electrically insulated.
[0016]
As a result, the power supply means does not come into contact with the pure water in the pure water container, and the connection portion between the power supply means and the electrode plate is completely separated from the pure water. It does not come into contact with pure water, which is a raw material for oxygen.
[0017]
Therefore, there is no danger of impurities eluted by the power supply means into the pure water in the pure water container, and at the same time, the above-mentioned adverse effects caused by the elution can be prevented.
[0018]
【Example】
Hereinafter, a power supply mechanism of the hydrogen / oxygen generator of the present invention will be described in detail with reference to the drawings.
[0019]
FIG. 1 is an example of the present power supply mechanism and shows a basic concept. Here, what is located on the outer periphery is a part of the pure water container 3, and the inside of the pure water container 3 is filled with pure water. The cylindrical water electrolysis cell 2 accommodated in the pure water container 3 is fixed on a support (not shown) with bolts and nuts. At both ends of the water electrolysis cell 2, disk-shaped electrode plates 12 projecting partly are arranged.
[0020]
The hollow tube 11 connects the inner wall surface of the pure water container 3 and the protruding portion of the electrode plate 12 via an insulating sandwiching member 14 made of a non-conductive material and having a sealing property. It is. The hollow tube 11 has flange portions at both ends thereof, and the flange portions are fixed with bolts and nuts made of a non-conductive material or a conductive material insulated and coated with a non-conductive material to form the pure water container 3 and The electrode plate 12 is connected.
[0021]
A cable 13 serving as a power supply means penetrates the inside of such a hollow tube in an electrically insulated state. The cable 13 is connected to the electrode plate 12 so as to be electrically connected to the electrode plate 12.
[0022]
Further, a lid member 15 is provided at a position on the electrode plate 12 that is paired with the hollow tube 11 via another insulating sandwiching member 14. The lid member 15 has a flange portion so as not to come into contact with the connection portion with the cable 13 protruding to the back side of the electrode plate 12, and is made of a non-conductive material or a conductive material insulated with a non-conductive material. Are connected to the electrode plate 12 by fixing with bolts and nuts.
[0023]
By having the above configuration, the voltage is supplied to the electrode plate 12 in a state where the cable 13 serving as the power supply means and the connection point between the cable 13 and the electrode plate 12 are completely separated from the pure water in the pure water container 3. Is what you can do.
[0024]
Hereinafter, each component will be described in detail.
[0025]
First, the pure water container 3 is made of stainless steel (SUS) in consideration of pressure resistance, elution resistance to pure water, and the like. The electrode plate 12 used for the water electrolysis cell 2 is formed of titanium (Ti) in consideration of corrosion resistance and the like. Here, the pure water container 3 and the electrode plate 12 are conductive materials, and if they are electrically connected, even the pure water container 3 becomes a high voltage like the electrode plate 12 and is very dangerous. Therefore, they must be connected in an electrically insulated state. Also, considering that the internal pressure of the pure water container 3 reaches 9.9 Kg / cm 3 during operation, and considering the resistance to elution to pure water, the hollow tube has an appropriate strength and is hardly eluted with stainless steel. It is necessary to use a tube made of (SUS).
[0026]
In consideration of these, it is necessary to connect the hollow tube 11 to the electrode plate 12 via an insulating sandwiching material 14 having an insulating property. On the other hand, the hollow tube 11 and the pure water container 3 are connected via the insulating sandwiching member 14 in FIG. 1 since there is no problem even if they have the same potential. It is also possible to weld to the inner wall of the container 3.
[0027]
In addition, as for the shape of the hollow tube 11, the position of the water electrolysis cell 2 may slightly move due to an error due to assembly, a change in pressure in the pure water container 3, a change in temperature, or the like. It is preferably bellows-like so that it can flexibly respond to movement. For example, a bellows may be used as the bellows-shaped tube.
[0028]
In consideration of insulation, elution resistance to pure water, strength, etc., a gasket or fiber reinforced material containing silicon resin or fluororesin as a main component is used as the insulating material 14 to be sandwiched between the connection portions. It is preferable to use a plastic (FRP) plate or the like.
[0029]
Further, it is preferable that the bolts and nuts used as the connection means are also made of the same material as the non-conductive insulating sandwiching material for reasons of insulation, resistance to elution to pure water and strength. Also, bolts and nuts made of a conductive material that is insulated and coated with these non-conductive materials can be used. Since the bolt and the nut have insulating properties, even if the electrode plate 12 and the hollow tube 11 are fixed with the insulating sandwiching member 14 interposed therebetween, they can be prevented from having the same potential.
[0030]
The cable 13 may be a known cable in which a conductive wire made of copper, aluminum, or tin-plated copper is coated with a coating material such as a polymer insulator. The cable 13 is connected to the electrode plate 12 with the covering material stripped off so as to be electrically connected to the electrode plate 12. As a connection method here, a method may be used in which a conducting wire is once fixed to a well-known crimp terminal or the like and connected to the electrode plate 12 with a bolt or the like.
[0031]
In addition, if the pure water container side of the connecting portion between the inner space 11 and the pure water container 3 side is protected by a lid having a hole that can be detached and has a central hole through which a cable can pass by using some insulating member, Inadvertent earth leakage can be prevented.
[0032]
Further, the cover member 15 is effective when the connection point between the cable 13 and the electrode plate 12 penetrates the electrode plate 12 as shown in the figure.
[0033]
Since only the basic concept is shown for the connection method of each of the above members, the pressure difference between the inside and outside of the pure water container 3 during the operation of the hydrogen / oxygen generator, the amount of generated hydrogen / oxygen gas, the leakage of pure water, etc. In consideration of the above, a known sealing member or the like may be provided at an appropriate location.
[0034]
Note that the power supply mechanism described here is an example, and the pure water container 3 and the electrode plate 12 are electrically connected to each other by the hollow tube 11 in an electrically insulated state, and a cable is inserted into the hollow tube 11. Further, the power supply means, and the connection portion between the power supply means and the electrode plate may have another configuration as long as the condition that the pure water in the pure water container is completely separated is satisfied. The design can be changed.
[0035]
Further, as the solid electrolyte of the water electrolysis cell 2, for example, a solid polymer electrolyte membrane such as a cation exchange membrane (fluorine resin sulfonic acid cation exchange membrane, for example, “Nafion 117” manufactured by DuPont) can be used. .
[0036]
【The invention's effect】
The power supply mechanism of the hydrogen / oxygen generator according to the present invention can completely separate the power supply means and the connection point between the supply means and the electrode plate of the water electrolysis cell from pure water in the pure water container.
[0037]
Therefore, since the member constituting the cable used as the power supply means does not elute as an impurity in pure water that is a raw material of hydrogen and oxygen, contamination of the pure water and deterioration of the diaphragm can be prevented. In addition, the tip of the cable does not come into contact with the pure water, so that danger such as electric leakage can be prevented.
[0038]
Therefore, when the power supply mechanism of the present invention is used, unnecessary power supply members and the like do not come into contact with pure water, so that impurities can be prevented from being eluted into pure water as a raw material, and high-purity hydrogen and oxygen can be safely removed. Can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic sectional view of an embodiment of a power supply mechanism of a hydrogen / oxygen generator of the present invention.
FIG. 2 is a schematic sectional view of a power supply mechanism of a conventional hydrogen / oxygen generator.
FIG. 3 is a partially enlarged sectional view of FIG. 2;
FIG. 4 is a partial schematic cross-sectional view of a water electrolysis cell.
FIG. 5 is a partial schematic view of a hydrogen / oxygen generator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Hydrogen / oxygen generator 2 ... Water electrolysis cell 3 ... Pure water container 4 ... Oxygen gas gas-liquid separation chamber 7 ... Hydrogen gas gas-liquid separation device 11 ... Hollow tube 12 ... Electrode plate 13 ... Cable 14 ... Insulation sandwiching Member 15 Lid 21 Solid electrolyte membrane 22 Anode 23 Cathode 24 Anode chamber 25 Cathode chamber 26 Solid electrolyte 41 Fixing body 42 Packing 44 Packing holder 45 Union nut

Claims (1)

固体電解質膜を隔膜として用いて、陽極側と陰極側とに分離して、純水を陽極側に供給しながら正負の電極板に電圧を供給することで純水を電気分解して、陽極側から酸素ガスを、陰極側から水素ガスをそれぞれ発生するように構成された水電解セルを純水容器内に収容した水素・酸素発生器から構成される水素・酸素発生装置において、
上記純水容器の外周部と水電解セルの電極板とを中空管によって電気的に絶縁状態で接続し、
水電解セルへ電圧を供給するための給電手段を中空管とは電気的に絶縁状態で該中空管内を挿通させると同時に電極板と電気的に接続状態とさせ、かつ、
上記給電手段と上記電極板との接続部分を純水容器内の純水と離間させていることを特徴とする水素・酸素発生装置の給電機構。
Using a solid electrolyte membrane as a diaphragm, separate the anode side and the cathode side, and supply pure water to the anode side while supplying voltage to the positive and negative electrode plates to electrolyze the pure water, A hydrogen / oxygen generator comprising a hydrogen / oxygen generator containing a water electrolysis cell configured to generate hydrogen gas from the cathode side in a pure water container,
The outer periphery of the pure water container and the electrode plate of the water electrolysis cell are electrically connected by a hollow tube in an electrically insulated state,
A power supply means for supplying a voltage to the water electrolysis cell is made to be electrically connected to the electrode plate at the same time as the hollow tube is inserted in the hollow tube in an electrically insulated state, and
A power supply mechanism for a hydrogen / oxygen generator, wherein a connection portion between the power supply means and the electrode plate is separated from pure water in a pure water container.
JP10686596A 1996-04-26 1996-04-26 Power supply mechanism for hydrogen / oxygen generator Expired - Lifetime JP3560413B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10686596A JP3560413B2 (en) 1996-04-26 1996-04-26 Power supply mechanism for hydrogen / oxygen generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10686596A JP3560413B2 (en) 1996-04-26 1996-04-26 Power supply mechanism for hydrogen / oxygen generator

Publications (2)

Publication Number Publication Date
JPH09291387A JPH09291387A (en) 1997-11-11
JP3560413B2 true JP3560413B2 (en) 2004-09-02

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101992125B1 (en) * 2018-11-27 2019-06-24 배상민 Airtight apparatus for generating hydrogen gas

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4631525B2 (en) * 2005-04-27 2011-02-16 日立造船株式会社 Dimensional fluctuation absorber for container-type water electrolyzer
KR20090034652A (en) * 2007-10-04 2009-04-08 삼성전기주식회사 Hydrogen Generator and Fuel Cell Power Generation System Having Same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101992125B1 (en) * 2018-11-27 2019-06-24 배상민 Airtight apparatus for generating hydrogen gas

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