JP2564943B2 - Chlorine generating electrode of drinking water sterilizer - Google Patents
Chlorine generating electrode of drinking water sterilizerInfo
- Publication number
- JP2564943B2 JP2564943B2 JP1250306A JP25030689A JP2564943B2 JP 2564943 B2 JP2564943 B2 JP 2564943B2 JP 1250306 A JP1250306 A JP 1250306A JP 25030689 A JP25030689 A JP 25030689A JP 2564943 B2 JP2564943 B2 JP 2564943B2
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- Prior art keywords
- water
- chlorine
- water level
- electrode
- specified
- 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.)
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、例えばカップ式飲料自動販売機の飲料水供
給系に組み込んだ飲料水殺菌装置の塩素発生電極に関す
る。TECHNICAL FIELD The present invention relates to a chlorine generation electrode of a drinking water sterilizer incorporated in a drinking water supply system of a cup type beverage vending machine, for example.
頭記したカップ式飲料自動販売機では、水道から給水
された水道水を機内の水リザーバに貯留し、ここから各
種飲料の希釈用水，製氷機の製氷用水として供給するよ
うにしている。In the cup-type drink vending machine described above, tap water supplied from the tap water is stored in a water reservoir in the machine and supplied from there as water for diluting various beverages and water for ice making in an ice making machine.
一方、自動販売機では、食品衛生法上から機内の水リ
ザーバに貯留されている飲料水は滅菌されていることが
義務付けられている。On the other hand, in the vending machine, it is required by the Food Sanitation Law that the drinking water stored in the water reservoir in the machine is sterilized.
ところで、上水道の給水場から需要末端に配水される
水道水には一般に0.1ppm程度の塩素が含まれているが、
上記の自動販売機では一般に水道からの給水を活性炭フ
ィルタを経由して水リザーバに導入するようにしている
ことから、水道水中に含まれている塩素の多くは活性炭
フィルタを透過する過程で還元，除去されてしまう。さ
らに、水道水が水リザーバに長い時間貯留されていると
水中の塩素が自己分解することもあり、水リザーバの貯
留水は残留塩素濃度が低下してこのまま放置すると殺菌
能力が低下するようになる。By the way, tap water distributed from the water supply point to the demand terminal generally contains about 0.1 ppm of chlorine.
In the vending machine described above, water supplied from the tap water is generally introduced into the water reservoir through the activated carbon filter, so that most of the chlorine contained in the tap water is reduced and reduced in the process of passing through the activated carbon filter. Will be removed. Furthermore, if tap water is stored in a water reservoir for a long time, the chlorine in the water may self-decompose, and the residual water concentration in the water reservoir will decrease, and if left as it is, the sterilization ability will decrease. .
このために、自動販売機では水リザーバに貯留されて
いる飲料水を機内で改めて殺菌することが行われてお
り、かつこの殺菌手段として薬品添加法，オゾン殺菌法
の他に、最近では水道水の電気分解による塩素殺菌法が
一部で実用化されている。For this reason, vending machines have been used to sterilize drinking water stored in a water reservoir inside the machine again. In addition to the chemical addition method and the ozone sterilization method, recently tap water has been used as a sterilization method. The chlorine sterilization method by electrolysis has been put to practical use in some parts.
この塩素殺菌法は、水道水に含まれている塩素イオン
（塩素イオン自身には殺菌能力はない）を有効利用し、
水道水を電気分解することにより塩素イオンを陽極酸化
して塩素を発生させ、この塩素を水中に溶存させて飲料
水を殺菌しようとするものであり、具体的には水リザー
バの水中に直流電圧を印加する一対の電極板からなる塩
素発生電極を設置しておき、この電極に通電して水を電
気分解する。これにより、次式で表すように水道水に含
まれている塩素イオンが陽極酸化されて電子を失って塩
素に変換され、飲料水が再び塩素を含んで殺菌力を有す
るようになる。This chlorine sterilization method makes effective use of chlorine ions contained in tap water (chlorine ions themselves have no sterilizing ability),
By electrolyzing tap water, chlorine ions are anodized to generate chlorine, which is dissolved in water to sterilize drinking water.Specifically, DC voltage is applied to the water in the water reservoir. A chlorine generation electrode composed of a pair of electrode plates for applying a water is installed in advance, and the electrodes are energized to electrolyze water. As a result, the chlorine ions contained in the tap water are anodized to lose electrons and are converted into chlorine as represented by the following equation, and the drinking water contains chlorine again and has a sterilizing power.
2Cl-−2e→Cl2 Cl2＋H2O→HClO＋HCl 次に前記した塩素殺菌法を採用したカップ式飲料自動
販売機の飲料水供給系の構成を第８図に示す。図におい
て、１は水道、２は活性炭フィルタ、３は水リザーバ、
４は水リザーバ３に内蔵のフロートスイッチ付き入口
弁、５は製氷機、６は送水ポンプ7,水冷却コイル8,冷水
弁９を含む希釈水供給ライン、10はベンドステージ11に
搬出されたカップであり、これらで構成された飲料水供
給系に対し、水リザーバ３には水中に浸漬して塩素発生
電極12が設置されている。なお、13は電極12に電圧を印
加する直流電源、14は通電制御部である。2Cl − −2e → Cl 2 Cl 2 + H 2 O → HClO + HCl Next, FIG. 8 shows the configuration of the drinking water supply system of the cup type beverage vending machine adopting the chlorine sterilization method described above. In the figure, 1 is water, 2 is an activated carbon filter, 3 is a water reservoir,
4 is an inlet valve with a built-in float switch in the water reservoir 3, 5 is an ice making machine, 6 is a water supply pump 7, a water cooling coil 8, a dilution water supply line including a cold water valve 9, and 10 is a cup delivered to a bend stage 11. In contrast to the drinking water supply system configured by these, the chlorine reservoir electrode 12 is installed in the water reservoir 3 by being immersed in water. In addition, 13 is a DC power source for applying a voltage to the electrode 12, and 14 is an energization control unit.
また、前記した塩素発生電極12は、第９図，第10図に
示すように、数mm程度に選定した所定間隔のギャップを
隔てて向かい合わせに並ぶ短冊形の２枚の電極板12aを
ホルダ12bに保持した構造であり、ホルダ12bの上面には
各電極板12aの端子12cが突出して電源側に接続されてい
る。そして、かかる塩素発生電極12は、ホルダ12bが水
面上に位置し、電極板12aが水中に浸漬するように上方
より水リザーバ３の内部挿入して設置されている。Further, as shown in FIGS. 9 and 10, the chlorine generating electrode 12 has two strip-shaped electrode plates 12a, which are arranged face to face with each other with a gap of a predetermined distance selected to be about several mm between them. The structure is held by 12b, and the terminals 12c of each electrode plate 12a project from the upper surface of the holder 12b and are connected to the power source side. The chlorine generating electrode 12 is installed by inserting it into the water reservoir 3 from above so that the holder 12b is located on the water surface and the electrode plate 12a is immersed in water.
かかる構成で、水リザーバ３には水道１から入口弁４
を通じて給水された水がフロートスイッチで設定した規
定水位に貯留され、ここから製氷機5,および希釈水供給
ライン６に配水されることは周知の通りである。一方、
水リザーバ３の貯留水に対して適宜な時間周期，ないし
飲料の販売動作に合わせるなどして、塩素発生信号を通
電制御部14に与えて塩素発生電極12を通電することによ
り、先述のように水中に塩素が生成して飲料水が殺菌さ
れる。With such a configuration, the water reservoir 3 is connected to the water valve 1 through the inlet valve 4
It is well known that the water supplied through the reservoir is stored at the specified water level set by the float switch and is distributed from there to the ice making machine 5 and the dilution water supply line 6. on the other hand,
By supplying a chlorine generation signal to the energization control unit 14 and energizing the chlorine generation electrode 12 in accordance with an appropriate time period for the water stored in the water reservoir 3 or a drink selling operation, as described above. Chlorine is generated in water to sterilize drinking water.
ところで、前記のように短冊形の一対の電極板を単純
に向かい合わせて水リザーバ内に配備した塩素発生電極
の構造では、自動販売機の販売動作との関連で次記のよ
うな不具合が発生する。By the way, with the structure of the chlorine generation electrode in which a pair of strip-shaped electrode plates are simply placed facing each other inside the water reservoir as described above, the following problems occur in relation to the vending machine's sales operation. To do.
まず、水リザーバ３は、第８図で述べたようにフロー
トスイッチ付き入口弁４の開閉制御により水道からの供
給された水を槽内で規定水位に保つようにしている。な
お、入口弁４のフロートスイッチは低水位スイッチ4a,
高水位スイッチ4bを組合せからなる。すなわち、飲料販
売に伴う飲料水の導出により水リザーバ３の水位が低下
して入口弁４に付属したフロートスイッチの低水位スイ
ッチ4aが動作すると、そのスイッチ動作信号を受けて入
口弁４が開放し、水道１より水リザーバ３に水道水が補
給される。また、水道水の補給により水リザーバ３の水
位が回復してフロートスイッチの高水位スイッチ4bが動
作すると、そのスイッチ動作信号により入口弁４が閉じ
る。これにより水リザーバ３の水位はフロートスイッチ
で設定された水位に保たれる。なお、フロートスイッチ
で設定した水リザーバ３の水位を規定水位としてH1で表
す。First, as described with reference to FIG. 8, the water reservoir 3 keeps the water supplied from the tap water at the specified water level by controlling the opening / closing of the inlet valve 4 with the float switch. The float switch of the inlet valve 4 is a low water level switch 4a,
A combination of high water level switch 4b. That is, when the water level of the water reservoir 3 is lowered by the derivation of drinking water accompanying the sale of beverages and the low water level switch 4a of the float switch attached to the inlet valve 4 operates, the inlet valve 4 is opened in response to the switch operation signal. The tap water is supplied from the tap 1 to the water reservoir 3. Further, when the water level in the water reservoir 3 is restored by the supply of tap water and the high water level switch 4b of the float switch operates, the switch operation signal closes the inlet valve 4. As a result, the water level of the water reservoir 3 is maintained at the water level set by the float switch. The water level of the water reservoir 3 set by the float switch is represented by H1 as the specified water level.
一方、第８図における製氷機５は、その貯氷室5a内に
生じた氷の融水を融水管5bを通じて水リザーバ３に戻す
ようにした方式が一般に採用されており、販売待機中
（入口弁４が閉じて水リザーバ３の水位は規定水位H1に
保持されている）に製氷機５からの融水が還流すると、
製氷機側の水位とバランスするように水リザーバ３の水
位が押し上げられ、このために水リザーバの水位は第９
図に示すように規定水位H1を超えて水位H2に上昇するよ
うになる。On the other hand, the ice maker 5 in FIG. 8 generally adopts a system in which the melted water of the ice generated in the ice storage chamber 5a is returned to the water reservoir 3 through the melted water pipe 5b, and the system is waiting for sale (inlet valve 4 is closed and the water level of the water reservoir 3 is kept at the regulated water level H1)
The water level of the water reservoir 3 is pushed up so as to be balanced with the water level of the ice maker side, so that the water level of the water reservoir is the ninth level.
As shown in the figure, the water level exceeds the specified water level H1 and rises to the water level H2.
しかも、水リザーバ３の水位が変動すると、これに伴
い塩素発生電極12が水中に没する浸漬領域，つまり塩素
発生に直接関与する電極板12aの接液面積が変化する。
したがって、この状態で塩素発生信号が与えられて電極
12に通電すると、同じ通電条件（印加電圧，通電時間な
ど）の下では、規定水位H1の状態で通電した場合と比べ
て塩素発生量に差が生じる。すなわち、塩素の発生は水
中に浸漬している電極部分の表面で行われるために、電
極板の接液面積が変わるとそれに対応して塩素発生量が
変動する。この場合に、電極の接液面積をS,電極板の間
隔をl,水道水の導電度をEC,電極の印加電圧をV,通電電
流をＩとすると、塩素発生量Ｑとの間には次式の関係が
成立する。Moreover, when the water level in the water reservoir 3 changes, the immersion area in which the chlorine generating electrode 12 is submerged in water, that is, the liquid contact area of the electrode plate 12a directly involved in chlorine generation changes.
Therefore, in this state, the chlorine generation signal is given and the electrode
When 12 is energized, under the same energization conditions (applied voltage, energization time, etc.), there is a difference in the chlorine generation amount compared to when energized at the specified water level H1. That is, since chlorine is generated on the surface of the electrode portion immersed in water, when the liquid contact area of the electrode plate changes, the chlorine generation amount changes correspondingly. In this case, assuming that the wetted area of the electrode is S, the distance between the electrode plates is l, the conductivity of tap water is EC, the applied voltage of the electrode is V, and the energizing current is I, the chlorine generation amount Q The following relationship holds.
Ｑ＝（S/l）・EC・k1＝（I/V）・k2 但し、k1,k2:定数 また、上記の式をグラフで表すと第11図のようにな
る。Q = (S / l) · EC · k 1 = (I / V) · k 2 where, k 1, k 2: constant also becomes as FIG. 11 to represent the above equation graphically.
一方、飲料水は水中の塩素濃度が低いと殺菌効果が低
下するが、逆に塩素濃度が過剰になると塩素臭が強すぎ
て販売飲料の風味を損なう他、着色清涼飲料の変色，飲
料供給系管路を構成している材料の劣化などの問題が生
じる。On the other hand, drinking water has a low bactericidal effect when the chlorine concentration in the water is low, but on the contrary, when the chlorine concentration is excessive, the chlorine odor is too strong and the flavor of the sold beverage is impaired. Problems such as deterioration of the material forming the pipeline occur.
かかる点、第９図に示したように塩素発生電極12とし
て短冊形の電極板（幅寸法Ｄ）を採用した従来の電極構
造では、水位の変動に伴って電極板の接液面積が大きく
変化する。つまり、先記した製氷機からの融水還流など
により水リザーバの水位が規定水位H1からH2に上昇した
場合には、電極板の接液面積がＤ×（H2−H1）の割合で
増加する。このために塩素発生量が水リザーバの貯水量
に対して過剰となり、水中の塩素濃度が高まって塩素臭
により飲料水の風味が損なわるなどの問題が生じる。こ
のことは実機テストからも確認されている。In this respect, in the conventional electrode structure in which the strip-shaped electrode plate (width dimension D) is adopted as the chlorine generation electrode 12 as shown in FIG. 9, the wetted area of the electrode plate greatly changes with the fluctuation of the water level. To do. That is, when the water level in the water reservoir rises from the regulated water level H1 to H2 due to the melt water reflux from the ice maker described above, the liquid contact area of the electrode plate increases at a rate of D × (H2-H1). . For this reason, the amount of chlorine generated becomes excessive with respect to the amount of water stored in the water reservoir, and the chlorine concentration in the water increases, causing a problem such as the smell of chlorine impairing the flavor of drinking water. This has been confirmed by the actual machine test.
本発明は上記の点にかんがみてなされたものであり、
電極板の形状を改良することにより、水リザーバの水位
変動，特に製氷機からの融水還流が原因で水位が水リザ
ーバの規定水位を超えて上昇した場合でも、貯水水量に
対して塩素が過剰に発生しないようにした飲料水殺菌装
置の塩素発生電極を提供することを目的とする。The present invention has been made in view of the above points,
By improving the shape of the electrode plate, even if the water level rises above the specified water level in the water reservoir due to fluctuations in the water reservoir's water level, especially melted water reflux from the ice maker, there is excess chlorine in the stored water volume. It is an object of the present invention to provide a chlorine generation electrode for a drinking water sterilizer which is prevented from being generated.
上記課題を解決するために、本発明の塩素発生電極
は、水リザーバ内に貯留される水道水の規定水位を境
に、該規定水位より上方に延在する電極板部分の幅寸法
を、規定水位以の電極板部分の幅寸法に比べて狭小幅に
設定して構成するものとする。In order to solve the above problems, the chlorine generation electrode of the present invention defines a width dimension of an electrode plate portion extending above the specified water level with a specified water level of tap water stored in a water reservoir as a boundary. The width of the electrode plate above the water level is set narrower than that of the electrode plate.
また、前記の課題は、水リザーバ内の規定水位を境
に、該規定水位より上方に延在する電極板部分の表面を
電気絶縁材で被覆した構成とすることでも解決できる。Further, the above-mentioned problem can be solved also by adopting a structure in which the surface of the electrode plate portion extending above the specified water level is covered with an electric insulating material with the specified water level in the water reservoir as a boundary.
さらに、別な解決手段として、水リザーバ内の規定水
位を境に、該規定水位の上方域にて対向する電極板の間
に絶縁隔壁を設けた構成とすることもできる。Further, as another means for solving the problem, an insulating partition wall may be provided between the electrode plates facing each other in the upper region of the specified water level with the specified water level in the water reservoir as a boundary.
（１）前記のように、水リザーバ内の規定水位を境に、
該規定水位より上方に位置する電極板部分の幅寸法を、
規定水位以下の電極板部分に比べて狭小幅に設定する
と、水リザーバ内の水位が規定水位から上昇した場合で
も、電極板の狭小幅な部分が余分に浸漬するだけで塩素
発生に直接関与する電極板の接液面積の水位上昇に伴う
増加分は僅かである。したがって、水リザーバの水位上
昇にともなう塩素発生量が過剰となって飲料の風味を損
なうことがなくなる。(1) As described above, with the specified water level in the water reservoir as a boundary,
The width dimension of the electrode plate portion located above the specified water level is
If the width is set narrower than that of the electrode plate below the specified water level, even if the water level in the water reservoir rises from the specified water level, the narrow part of the electrode plate will be directly immersed and will be directly involved in chlorine generation. The increase in the liquid contact area of the electrode plate with the rise of the water level is slight. Therefore, the amount of chlorine generated due to the rise in the water level in the water reservoir does not become excessive and the flavor of the beverage is not impaired.
（２）また、水リザーバ内の規定水位を境に、該規定水
位より上方に延在する電極板部分の表面を電気絶縁材で
被覆した構成とすることにより、水リザーバ内の水位が
規定水位を超えて上昇した場合でも、規定水位で水面上
に露呈していた絶縁被覆部分が水中に没入するだけで、
塩素発生に直接関与する実効的な電極の接液面積は変わ
らず、過剰な塩素発生を抑えることができる。(2) Further, when the surface of the electrode plate portion extending above the specified water level is covered with an electric insulating material at the specified water level in the water reservoir as a boundary, the water level in the water reservoir is set to the specified water level. Even if it rises above the limit, the insulation coating part that was exposed on the water surface at the specified water level will only be immersed in the water,
The effective liquid contact area of the electrode, which is directly involved in chlorine generation, does not change, and excessive chlorine generation can be suppressed.
（３）さらに、水リザーバ内の規定水位を境に、該規定
水位の上方域にて対向する電極板の間に絶縁隔壁を設け
た構成では、水リザーバ内の水位が規定水位を超えて上
昇した場合でも、その水位上昇分に対応して絶縁隔壁が
水中に没することになる。したがってこの隔壁が対向電
極板の間で水中を流れる電流に対し通電障害物として働
き、前記と同様に塩素発生量の過剰な増加を抑える。(3) Further, in the case where the water level in the water reservoir rises above the specified water level in the configuration in which the insulating partition wall is provided between the electrode plates facing each other above the specified water level in the water reservoir above the specified water level. However, the insulating partition will be submerged in water corresponding to the increase in the water level. Therefore, the partition walls act as a current-carrying obstacle for the current flowing in the water between the counter electrode plates, and suppress an excessive increase in the amount of chlorine generation as in the above.
第１図ないし第７図は本発明の実施例を示すものであ
り、第９図，第10図に対応する同一部材には同じ符号が
付してある。FIGS. 1 to 7 show an embodiment of the present invention, and the same members corresponding to FIGS. 9 and 10 are designated by the same reference numerals.
まず、第１図，第２図に示す実施例では、対向する一
対の電極板12aの形状について、先記した水リザーバの
規定水位H1を境に、該規定水位H1より上側に延在する電
極板部分の幅寸法ｄを規定水位H1より下側に位置する電
極板部分の幅寸法Ｄと比べて狭小幅とし、その幅寸法ｄ
は電極の通電に必要な電流容量を確保できる程度の小幅
に設定されている。なお、前記した電極板12aの狭小幅
域は、水リザーバで想定される水位上昇変動幅域に対応
して形成されていればよい。First, in the embodiment shown in FIGS. 1 and 2, regarding the shape of the pair of electrode plates 12a facing each other, the electrodes extending above the specified water level H1 with the specified water level H1 of the water reservoir as a boundary. The width dimension d of the plate portion is made narrower than the width dimension D of the electrode plate portion located below the prescribed water level H1, and the width dimension d
Is set to a small width so that the current capacity necessary for energizing the electrodes can be secured. The narrow width area of the electrode plate 12a may be formed so as to correspond to the water level rise fluctuation width area assumed in the water reservoir.
かかる構成により、水リザーバ内の水位が規定水位H1
を超えてH2に上昇した場合でも、規定水位H1の状態と比
べて幅寸法の狭い部分が余分に水中に没するだけであ
り、塩素発生に直接関与する電極板12aの接液面積増加
分は僅少となる。したがって電極の印加電圧，通電時間
を一定とすれば、電極への通電による塩素発生量は、規
定水位H1と上昇水位H2とでは殆ど変わらずにほぼ一定量
となる。これにより水リザーバの貯留水量に対し塩素濃
度が過剰になって販売飲料の風味を損なうことがなくな
る。With this configuration, the water level in the water reservoir is regulated
Even if it rises above H2 to H2, only the part with a narrow width dimension is submerged in water compared to the state of the specified water level H1, and the increase in the wetted area of the electrode plate 12a directly involved in chlorine generation is It will be scarce. Therefore, if the applied voltage to the electrode and the energization time are constant, the amount of chlorine generated by energizing the electrode is almost constant between the regulated water level H1 and the rising water level H2. This prevents the chlorine concentration from becoming excessive with respect to the amount of water stored in the water reservoir and impairing the flavor of the beverage sold.
第３図は前記実施例の応用実施例であり、電極板12a
の狭小幅部（幅寸法ｄ）が電極板12aの側端部に形成さ
れており、かつ対向し合う一対の電極板の間で左右に互
い違いに配置されている。つまり狭小幅部同士が電極板
12aの間に設定したギャップの対角線上で向き合ってい
て相互間隔が実質的に電極のギャップ寸法よりも大とな
る。したがって、水位が上昇した際に水中を流れる電
流，したがって塩素発生量の増加を抑えるのに有効に作
用する。FIG. 3 is an application example of the above embodiment, in which the electrode plate 12a
Has a narrow width portion (width dimension d) formed at the side end portion of the electrode plate 12a, and is arranged left and right in a staggered manner between a pair of electrode plates facing each other. That is, the narrow width parts are electrode plates
The electrodes are opposed to each other on the diagonal line of the gap set between 12a, and the mutual spacing is substantially larger than the gap size of the electrodes. Therefore, when the water level rises, it effectively acts to suppress an increase in the current flowing through the water, and thus the amount of chlorine generated.
第４図，第５図は前記各実施例と別な手段の実施例を
示すものであり、水リザーバの規定水位H1を境として、
該規定水位H1より上側に延在する電極板部分の表面に例
えば樹脂コーティングを施すなどして電気絶縁材15で被
覆したものである。FIG. 4 and FIG. 5 show an embodiment of means different from each of the above-mentioned embodiments, with the specified water level H1 of the water reservoir as a boundary.
The surface of the electrode plate portion extending above the specified water level H1 is covered with an electric insulating material 15 by, for example, applying a resin coating.
かかる構成により、水位が規定水位H1を超えてH2に上
昇しても、絶縁被覆された部分が水中に没するだけで、
塩素発生に関与する電極板の接液面積は不変であり、し
たがって塩素発生量は水位の上昇変動で増加することな
く一定量に収まる。With this configuration, even if the water level rises above the regulated water level H1 to H2, only the part covered with insulation is submerged in water,
The liquid contact area of the electrode plate, which is involved in chlorine generation, does not change, and therefore the chlorine generation amount does not increase due to the fluctuation of the water level and stays within a fixed amount.
第６図，第７図はさらに異なる手段の実施例を示すも
のであり、水リザーバの規定水位H1を境として、該規定
水位H1より上方域にて、対向する一対の電極板12aの間
に絶縁隔壁16を設けたものである。この隔壁16の幅寸法
D1は少なくとも電極板12aの幅寸法Ｄよりも大に選定し
て対向する電極板12aの水中通電路を遮断するように配
備されている。なお、この隔壁16は電極ホルダ12cと一
体成形することもできる。FIG. 6 and FIG. 7 show an embodiment of a different means, which is located between the pair of electrode plates 12a facing each other in a region above the specified water level H1 of the water reservoir and above the specified water level H1. An insulating partition 16 is provided. The width of this partition 16
D1 is selected so as to be at least larger than the width dimension D of the electrode plate 12a, and is arranged so as to cut off the underwater current path of the opposing electrode plate 12a. The partition wall 16 may be integrally formed with the electrode holder 12c.
かかる構成により、水位が規定水位H1を超えてH2に上
昇した状態では、絶縁隔壁16の下端部が水中に没入する
ことになり、この水中没入部分が電極板12aの間で水中
を流れる電流に対して障害物として働く。これにより、
規定水位H1と上昇水位H2との間で水中に没した電極板の
面域は、殆ど塩素発生に直接関与せず、これにより水位
上昇に伴う塩素発生量の増加を僅少に抑えることができ
る。With such a configuration, in a state where the water level rises above the regulated water level H1 to H2, the lower end of the insulating partition 16 will be immersed in water, and this underwater immersion portion causes a current flowing in water between the electrode plates 12a. On the other hand, it works as an obstacle. This allows
The surface area of the electrode plate submerged in the water between the specified water level H1 and the rising water level H2 hardly directly participates in the chlorine generation, and thus the increase in the chlorine generation amount due to the water level rise can be suppressed to a slight extent.
〔発明の効果〕 本発明による塩素発生電極は、以上説明したように構
成されているので、次記の効果を奏する。[Advantages of the Invention] Since the chlorine generation electrode according to the present invention is configured as described above, it has the following effects.
（１）水リザーバの水位があらかじめ入口弁に付属のフ
ロートスイッチで設定した規定水位を超えて上昇した際
でも、塩素発生に直接関与する電極板の接液面積，した
がって電極通電による塩素発生量の増加を僅少に抑え
て、飲料水の塩素濃度が過剰になるのを防止できる。(1) Even when the water level in the water reservoir rises above the specified water level set in advance by the float switch attached to the inlet valve, the wetted area of the electrode plate, which is directly involved in chlorine generation, and hence the chlorine generation amount due to electrode energization The increase can be suppressed to a slight extent to prevent the chlorine concentration in drinking water from becoming excessive.
（２）したがって、カッ式飲料自動販売機に適用し、そ
の飲料水供給系の水リザーバに塩素発生電極を組み込ん
で水リザーバに貯留した飲料水を殺菌する場合には、製
氷機からの融水還流などで水リザーバの水位が規定水位
を超えて上昇することがあっても、塩素の過剰発生を抑
えて飲料の風味が損なわれるのを防止できる。(2) Therefore, when it is applied to a cup type beverage vending machine and a chlorine generating electrode is incorporated in the water reservoir of the drinking water supply system to sterilize the drinking water stored in the water reservoir, the molten water from the ice maker is used. Even if the water level in the water reservoir rises above the specified water level due to reflux or the like, it is possible to prevent excessive generation of chlorine and prevent the flavor of the beverage from being impaired.
第１図，第２図は本発明の一実施例の塩素発生電極の構
成を示す正面図，および側面図、第３図は前記実施例の
応用実施例を示す正面図、第４図，第５図は前記実施例
と異なる手段による実施例の構成を示す正面図，および
側面図、第６図，第７図はさらに異なる手段による実施
例の構成を示す正面図，および側面図、第８図は飲料水
殺菌装置を装備したカップ式飲料自動販売機の飲料水供
給系統図、第９図，第10図は従来における塩素発生電極
の構成を示す正面図，および側面図、第11図は塩素発生
量と塩素発生電極の電流／電圧との関係を表す図であ
る。図において 1:水道、3:水リザーバ、12:塩素発生電極、12a:電極
板、13:直流電源、15:絶縁材被覆、16:絶縁隔壁、D:規
定水位より下部の電極板幅寸法、d:規定水位より上部の
電極板幅寸法。1 and 2 are a front view and a side view showing the structure of a chlorine generating electrode according to an embodiment of the present invention, and FIG. 3 is a front view showing an applied embodiment of the above embodiment, FIGS. FIG. 5 is a front view and a side view showing the structure of an embodiment by means different from the above embodiment, and FIGS. 6 and 7 are front views and side views showing the structure of an embodiment by means different from the above embodiment. Figure is a drinking water supply system diagram of a cup type beverage vending machine equipped with a drinking water sterilizer, Figures 9 and 10 are front and side views showing the structure of a conventional chlorine generation electrode, and Figure 11 is It is a figure showing the relationship between the chlorine generation amount and the current / voltage of a chlorine generation electrode. In the figure, 1: water supply, 3: water reservoir, 12: chlorine generation electrode, 12a: electrode plate, 13: DC power supply, 15: insulating material coating, 16: insulating partition, D: electrode plate width below the specified water level, d: Width of electrode plate above the specified water level.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０２Ｆ 1/50 ５５０ Ｃ０２Ｆ 1/50 ５５０Ｄ ５５０Ｌ ５６０ ５６０Ｆ 1/76 1/76 Ａ Ｃ２５Ｂ 1/26 Ｃ２５Ｂ 1/26 Ａ Ｇ０７Ｆ 13/00 Ｇ０７Ｆ 13/00 Ｂ (72)発明者 永田 和重 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内 (72)発明者 篠原 泰三 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical location C02F 1/50 550 C02F 1/50 550D 550L 560 560F 1/76 1/76 A C25B 1/26 C25B 1/26 A G07F 13/00 G07F 13/00 B (72) Inventor Kazushige Nagata 1-1 Tanabe Nitta, Kawasaki-ku, Kawasaki City, Kanagawa Prefecture Fuji Electric Co., Ltd. (72) Inventor Taizo Shinohara, Kawasaki City, Kanagawa Prefecture 1-1 Tanabe Nitta, Kawasaki-ku, Fuji Electric Co., Ltd.
Claims (3)
リザーバに対し、その内部に電源に接続した一対の塩素
発生電極板を上方より挿入して対向配備し、該電極板へ
の通電による電気分解作用で水道水に含まれている塩素
イオンを塩素に変換して飲料水を殺菌する飲料水殺菌装
置の塩素発生電極であって、水リザーバ内に貯留される
水道水の規定水位を境に、該規定水位より上方に延在す
る電極板部分の幅寸法を、規定水位以下の電極板部分の
幅寸法に比べて狭小幅に設定したことを特徴とする飲料
水殺菌装置の塩素発生電極。1. A pair of chlorine-generating electrode plates connected to a power source are inserted from above into a water reservoir for storing tap water in preparation for a drinking water supply system, and the two are arranged to face each other. It is a chlorine generation electrode of a drinking water sterilizer that converts chlorine ions contained in tap water into chlorine by electrolysis by energization and sterilizes drinking water.The specified water level of tap water stored in a water reservoir. With the boundary as a boundary, the width dimension of the electrode plate portion extending above the specified water level is set to be narrower than the width dimension of the electrode plate portion below the specified water level. Generation electrode.
リザーバに対し、その内部に電源に接続した一対の塩素
発生電極板を上方より挿入して対向配備し、該電極板へ
の通電による電気分解作用で水道水に含まれている塩素
イオンを塩素に変換して飲料水を殺菌する飲料水殺菌装
置の塩素発生電極であって、水リザーバ内に貯留される
水道水の規定水位を境に、該規定水位より上方に延在す
る電極板部分の表面を電気絶縁材で被覆したことを特徴
とする飲料水殺菌装置の塩素発生電極。2. A pair of chlorine generating electrode plates connected to a power source are inserted from above into a water reservoir for storing tap water in preparation for a drinking water supply system so as to face each other. It is a chlorine generation electrode of a drinking water sterilizer that converts chlorine ions contained in tap water into chlorine by electrolysis by energization and sterilizes drinking water.The specified water level of tap water stored in a water reservoir. The chlorine generating electrode of the drinking water sterilizer, wherein the surface of the electrode plate portion extending above the prescribed water level is covered with an electric insulating material.
リザーバに対し、その内部に電源に接続した一対の塩素
発生電極板を上方より挿入して対向配備し、該電極板へ
の通電による電気分解作用で水道水に含まれている塩素
イオンを塩素に変換して飲料水を殺菌する飲料水殺菌装
置の塩素発生電極であって、水リザーバ内に貯留される
水道水の規定水位を境に、該規定水位の上方域で対向し
合う電極板部分の間に絶縁隔壁を介装したことを特徴と
する飲料水殺菌装置の塩素発生電極。3. A pair of chlorine-generating electrode plates connected to a power source are inserted from above into a water reservoir which stores tap water in preparation for a drinking water supply system, and the two are disposed so as to face each other. It is a chlorine generation electrode of a drinking water sterilizer that converts chlorine ions contained in tap water into chlorine by electrolysis by energization and sterilizes drinking water.The specified water level of tap water stored in a water reservoir. A chlorine generating electrode for a drinking water sterilizer, wherein an insulating partition is provided between electrode plate portions facing each other above the specified water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1250306A JP2564943B2 (en) | 1989-02-09 | 1989-09-26 | Chlorine generating electrode of drinking water sterilizer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1-30151 | 1989-02-09 | ||
| JP3015189 | 1989-02-09 | ||
| JP1250306A JP2564943B2 (en) | 1989-02-09 | 1989-09-26 | Chlorine generating electrode of drinking water sterilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03195A JPH03195A (en) | 1991-01-07 |
| JP2564943B2 true JP2564943B2 (en) | 1996-12-18 |
Family
ID=26368442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1250306A Expired - Lifetime JP2564943B2 (en) | 1989-02-09 | 1989-09-26 | Chlorine generating electrode of drinking water sterilizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2564943B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW330265B (en) * | 1994-11-22 | 1998-04-21 | Hitachi Ltd | Semiconductor apparatus |
| JP2001340861A (en) * | 2000-03-31 | 2001-12-11 | Toto Ltd | Electrolytic electrode |
| JP4764580B2 (en) * | 2001-09-27 | 2011-09-07 | 株式会社光明製作所 | Temporary water pipe |
| JP4899371B2 (en) * | 2005-08-02 | 2012-03-21 | パナソニック株式会社 | Drinking water sterilizer |
| US8967207B2 (en) | 2008-01-31 | 2015-03-03 | Polyplastics Co., Ltd. | Multi-layer cylindrical molded article |
| WO2011096503A1 (en) * | 2010-02-08 | 2011-08-11 | Ishii Yoshihisa | Electrode structure for device for yielding aqueous solution of hypochlorous acid or the like |
| CN111795530B (en) * | 2019-04-08 | 2023-09-22 | 青岛海尔电冰箱有限公司 | Water jug and sterilization method thereof, ice maker and ice making refrigerator with water jug |
-
1989
- 1989-09-26 JP JP1250306A patent/JP2564943B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03195A (en) | 1991-01-07 |
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