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JP3672614B2 - Bath water circulation device having an electrolysis sterilizer - Google Patents
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JP3672614B2 - Bath water circulation device having an electrolysis sterilizer - Google Patents

Bath water circulation device having an electrolysis sterilizer Download PDF

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Publication number
JP3672614B2
JP3672614B2 JP10898495A JP10898495A JP3672614B2 JP 3672614 B2 JP3672614 B2 JP 3672614B2 JP 10898495 A JP10898495 A JP 10898495A JP 10898495 A JP10898495 A JP 10898495A JP 3672614 B2 JP3672614 B2 JP 3672614B2
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sterilization
bath water
electrolytic
time
flow path
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JPH08281270A (en
Inventor
義夫 山口
章嘉 笹野
滋 尾崎
孝司 銀山
清司 天野
幹 宮本
未奈 山岸
伸一 深田
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Janome Corp
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Janome Sewing Machine Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/42Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4612Controlling or monitoring
    • C02F2201/4615Time
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4618Supplying or removing reactants or electrolyte
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection

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  • Water Treatment By Electricity Or Magnetism (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、浴水装置に係り、特に浴水の清浄化装置における浴水の殺菌装置に関するものである。
【0002】
【従来の技術】
浴槽内の浴水を浄化、殺菌し循環ポンプで循環させ、再び清浄化された浴水を浴槽内へ送る装置が開発されている。
これら装置による浄化、殺菌は、活性炭、麦飯石等によるろ過槽で処理した後、紫外線ランプの内蔵された殺菌槽へ浴水を通過させて殺菌させる紫外線殺菌や高圧放電型のオゾン発生装置を用いてオゾンを発生させ、そのオゾンを浴水へ混入させて殺菌するオゾン殺菌を行っていた。
【0003】
従来の浴水装置は、上記の様に単に浴水の汚れを取り除くだけではなく、殺菌や加熱保温も同時に行い、24時間快適に入浴できる浴水装置を提供している。
【0004】
【発明が解決しようとする課題】
しかしながら、オゾン殺菌装置を用いて殺菌を行う場合、オゾンは水に難溶性のために高濃度のオゾンを用いなければならず、浴水中に未反応で残ったオゾンが浴槽から発散することもあり、このため高価な排オゾン処理装置を取付けなければならない等の問題があった。
【0005】
また、紫外線ランプを用いる殺菌装置では、浴水を殺菌浄化するための時間が長くかかり常に殺菌しなければならないだけでなく、紫外線ランプに水垢等が付着し、その性能を低下させるため、常にランプの清掃を行わなければならなかった。また、これらの装置では、人体から発生する汗や脂等の除去が行えないために、汗や脂等が浴水に持ち込まれると、これらが原因で浴水に異臭が発生し、極めて不快であった。
【0006】
本発明は、前記したような従来技術の欠点を改良し、入浴者に快適な環境の入浴を行うための装置を提供することにある。
【0007】
【課題を解決するための手段】
本発明は、浴槽の浴水を循環ポンプで汲み上げて循環路を通して循環させて清浄処理、保温処理して浴槽へ戻す浴水循環装置において、前記循環路の通常流路に接続されて流れ方向を変更させる電磁弁により流路変更される殺菌流路を設け、該殺菌流路には取り込んだ浴水に塩分を一定量添加供給する塩分添加部と、殺菌流路に設けられた電解殺菌装置に浴水を通水させるための殺菌流路部の流量を調節可能にするための流量制御手段とを備えた、殺菌のための塩素を発生させる電解殺菌装置とを備え、該電解殺菌装置で取り込んだ浴水に塩分添加部により塩分を添加した浴水を電気分解して殺菌のための塩素を所定量発生させるために前記電解殺菌装置の動作を通電制御する通電制御手段と、任意の時間に操作することで、殺菌を開始する電解殺菌開始指令信号を出力する始動指令手段と、該始動指令手段に応答して前記電解殺菌装置に通電させ、塩素を一定時間発生させるためのタイマー手段と、該タイマー手段の計測後殺菌を終了して、流れ方向を変更させる電磁弁により通常流路に変えて通常の浴水循環運転を継続するようにしたことを特徴とする電解殺菌装置を有する浴水循環装置とすることにより、課題を解決した。
さらに本発明は、浴槽の浴水を循環ポンプで汲み上げて循環路を通して循環させて清浄処理、保温処理して浴槽へ戻す浴水循環装置において、前記循環路の通常流路に接続されて流れ方向を変更させる電磁弁により流路変更される殺菌流路を設け、該殺菌流路には取り込んだ浴水に塩分を一定量添加供給する塩分添加部と、殺菌流路に設けられた電解殺菌装置に浴水を通水させるための殺菌流路部の流量を調節可能にするための流量制御手段とを備えた、殺菌のための塩素を発生させる電解殺菌装置とを備え、該電解殺菌装置で取り込んだ浴水に塩分添加部により塩分を添加した浴水を電気分解して殺菌のための塩素を所定量発生させるために前記電解殺菌装置の動作を通電制御する通電制御手段と、所定の時間帯に電解殺菌を行うように設定された開始時刻に殺菌を開始する電解殺菌開始指令信号を出力すると共に、殺菌終了後、流れ方向を変更させる電磁弁により通常流路に変えて通常の浴水循環運転を継続する制御手段を備えたことを特徴とする電解殺菌装置を有する浴水循環装置とすることにより、課題を解決した。
さらに本発明は、前記始動指令手段は、電解殺菌装置の殺菌を任意の時刻に開始するためのクロック手段であって、該クロック手段を任意の時刻に設定するための時刻設定手段と、設定された時刻を記憶するための設定時刻記憶手段とを更に備えたことを特徴とする電解殺菌装置を有する浴水循環装置とすることにより、課題を解決した。
【0008】
【実施例】
本発明における請求項1の基本構成の説明を図1に基づいて説明する。
本発明の外観および内部機構は、図1に示す如くである。
【0009】
浴槽1と浴槽内の浴水を吸い込むとともに髪等を除去するためのプレフィルター2と浴水を清浄化するための浄化フィルター部3と、浴水を循環させるための循環ポンプ4と、浴水を加熱する加熱ヒーター7と、浴水を殺菌する電解殺菌装置12と、流量調節用電磁弁10または流れ方向変更のための電磁弁27と、前記電解殺菌装置へ通水するための殺菌流路30と浄化殺菌された浴水を再び浴槽へ戻すための吐出口であるジェットノズル23により構成されている。
【0010】
浴水循環装置本体Aには、装置前面に液晶等によりなる表示装置14と種々の機能を選択、確定、変更等行うための操作キーやスイッチが設けられている。
この操作スイッチは、装置本体Aの電源スイッチ15、タイマー設定スイッチ16、内蔵された時計装置25の時刻のリセットスイッチ26や電解殺菌開始指令キー18等である。
【0011】
これら操作スイッチを操作し、温度や時間等の設定を行う。また、液晶パネルの表示装置14には、現在の時間、浴水の温度や異常発生時の警告等が表示される。
【0012】
電解殺菌における電解殺菌装置12の内部は、外面に2枚の陽極ケースを陽極板に挟んで接合して形成される陽極室の外側を、陰極板を保持した2枚の陰極ケースで接合した陰極室で覆い、2重の密室電極室構造の電解槽として形成される。この電解殺菌装置12に通電を行うと、陽極板および陰極板に電流が流れ、浴水が電気分解され、塩素イオンが発生し、浴水の殺菌、脱臭が効率的に行われる

【0013】
本発明の請求項1の実施例の本体装置Aの基本的な説明を図4のフローチャート図に基づき説明する。
【0014】
本体装置Aは、S1でまず浴水循環装置本体Aの電源スイッチ15により電源を投入すると、運転が開始される。S2で、電源が投入されたことにより循環ポンプ制御部5より循環ポンプ4の駆動が指示され、これにより浴水装置の浴水が循環される。
【0015】
S3では、ゴミや汚れ等により浄化フィルター3や浴水循環のための配管が目詰まりしていないかを確認するための流量センサー6が設置され、その流量を検出する。流量センサー6で検出された流量が適正であるかをT1で確認し、正常である場合は、YESへ、流量が不足する場合は、NOでS7へ行く。
【0016】
S7では、異常が発生したことを確認して、S8の浴水循環装置に設置された液晶パネルで構成された表示装置14に表示したり、警告ブザー等で流量に異常が発生したことを使用者に警告する。
【0017】
適正な流量であった場合には、S4へ行き、加熱ヒーター7による加熱を行う。S5では、その浴水温度を配管に設けられた温度センサー9によって検知し、温度設定キーにより設定された温度より低い場合は、加熱制御用リレースイッチ8より信号を送り、加熱ヒーター7のスイッチを入れ加熱する。
浴水の温度が高い場合は、加熱ヒーター7のスイッチをOFFし、温度調節を行う。
【0018】
また、浴水の温度が設定範囲を越えた場合には、加熱ヒーター7の異常加熱等のためS7で異常が発生したことを確認し、流量の異常発生の場合と同様にS8で警告する。
T3で、浴水の電解殺菌を行う場合には、S6の電解殺菌ルーチンへ移行し、殺菌を行わない場合には、T4へ移行する。
【0019】
電解殺菌ルーチンは、図5に示すフローで行われる。
S6で電解殺菌のルーチンに移行する。S9では、使用者が任意の時間に殺菌を行う場合に、電解殺菌開始指令スイッチ18をON操作する。
【0020】
S10では、電解殺菌装置12の始動スイッチの入力信号に応答し、流量を調節するための電磁弁10が開放して、殺菌流路30に通過し、S11で電解殺菌装置12に通水される。
【0021】
または、流れ方向を変更させるための三方弁よりなる電磁弁27により電解殺菌装置12への通水が行われる。
流れ方向の制御は、殺菌流路と通常の循環のための通常流路のそれぞれに電時弁を設け制御することも可能である。
【0022】
S11の通水開始とともに、S12では塩分添加部21の電磁弁よりなる塩分添加調節弁22が開放される。
S13では、入力信号を受けた調節弁22が開放されると食塩や食塩水を収納した塩分添加部21より電解殺菌装置12に塩分を一定量添加供給する。
【0023】
次にS14で、添加する食塩の量を調節するために前記調節弁22を閉鎖する。電解開始指令スイッチ18の入力操作により、S15で、電解殺菌装置12に通電制御用リレースイッチ13より通電のための信号が送られ、通電が開始される。
【0024】
通電が開始されると、電解殺菌装置12の内部に設けられた電解槽の各電極板により浴水が電気分解され、塩素が発生し、その塩素が浴水と混合され浴槽へ供給され、殺菌が開始される。
【0025】
電解殺菌の開始にあたってS16では、電極板に通電する電流を電流センサー19や漏電センサー等により検出し、T6で漏電事故を防止するために、所定の電流値より多く流れた場合には、S21で異常発生を確認し、S22で表示装置14により警告を行う。
【0026】
T6で電流値が適正範囲で正常の場合には、S17へ行き、電解殺菌が開始される。T7で、電解殺菌開始指令スイッチ18をOFFすると、S18で電解殺菌装置12へ電気分解のための通電信号を停止する。
【0027】
S19は、その通電信号停止に応答して電解殺菌装置12への通電と前記通水のための電磁弁10が閉鎖し、通水を停止する。
S20では、通水および通電停止により電解殺菌処理は終了する。
【0028】
電解殺菌処理が終了すると、プログラムは図4のフローへ戻る。
浴水循環装置は、電解殺菌終了後も通常流路31により循環、瀘過等の運転が行われ、T4で装置の運転停止が選択されるまで、連続的に運転される。
【0029】
次に請求項2の実施例について基づいて説明する。本装置の基本的な動作は、図4に示すフローであり、内容については既に説明してあるので省略する。
本発明を図6の電解殺菌フローチャート図により、その動作を説明する。
T3で、浴水の電解殺菌を行う場合には、電解殺菌ルーチンへ移行し、殺菌を行わない場合には、そのままT4へ移行する。
【0030】
S23では、使用者が任意の時間に殺菌を行う場合に、電解殺菌始動スイッチ18をON操作する。
S24では、電解殺菌装置12の始動スイッチの入力信号に応答し、流れ方向を変更させる電磁弁10が開放され、S25で前記電解殺菌装置12へ通水が行われる。
【0031】
S25の通水開始とともに、S26塩分添加部21の電磁弁よりなる塩分添加調節弁22が開放される。
入力信号を受けた調節弁22が開放されると、S27で食塩や食塩水を収納した塩分添加部21より電解殺菌装置12に塩分を一定量添加供給する。
【0032】
次にS28で、添加する食塩の量を調節するために前記調節弁22を閉鎖する。S29は、前記電解殺菌始動スイッチ18の操作に伴い装置に内蔵されたタイマーが作動し、S30で作動時間の計測が行われる。
タイマー装置20が作動すると、S31で、電解殺菌装置12に通電制御用リレースイッチ13より通電のための信号が送られ、通電が開始される。
【0033】
通電が開始されると、電解殺菌装置12の内部に設けられた電解槽の各電極板により浴水が電気分解され、塩素が発生し、その塩素が浴水と混合され浴槽へ供給され、殺菌が行われる。
【0034】
S32では、電極板に通電する電流を電流センサー19や漏電センサーにより検出し、漏電事故を防止するために、所定の電流値より多く流れた場合には、S38で異常発生を確認し、通電を停止する。S39で異常発生に対する警告を行う。
【0035】
T9で電流値が適正範囲で正常の場合に、S33で電解殺菌が開始される。
次にT10へ行き、タイマー20により電解殺菌に必要な、あらかじめ設定された時間を計測し、その時間が経過したかを検出する。
【0036】
設定時間になった場合には、S34で電解殺菌のための通電を停止し、設定時間に満たない場合には、再びS30へ行き時間の計測とともに電解殺菌は継続される。
S34でタイマーの設定時間が経過すると、前記電解殺菌装置12へ通電停止の信号が送られる。
【0037】
S35では、その停止信号に応答して電解殺菌装置12への通電と前記通水のための電磁弁10が閉鎖され、S36で通水は停止する。
S37で電解殺菌処理を終了する。
【0038】
電解殺菌処理が終了すると、プログラムは図4のフローへ戻る。
浴水循環装置は、電解殺菌終了後も通常流路31により循環、瀘過等の運転が行われ、T4で装置の運転停止が選択されるまで、連続的に運転される。
【0039】
次に請求項3の実施例について基づいて説明する。本装置の基本的な動作は、図4に示すフローであり、内容については既に説明してあるので省略する。
本発明を図7のフローチャート図により、その動作を説明する。
【0040】
S40で浴水循環装置の電源15が投入されると本体装置Aは駆動する。電源投入と同時に装置にS41で内蔵された時計装置25に電源が投入され時計機能が開始される。S42で時計25は、投入時の状況に対応する時間等の情報を表示装置14に表示する。
【0041】
使用者は、その表示を確認し、T12で時刻が誤っている場合には、S63でクロックリセットキー26により正しい時刻にリセットし、時計25を正常な状態にする。
【0042】
次にT13で、使用者は、自分の所望する殺菌の開始時刻を設定する。開始時刻が既に設定されている場合には、そのまま次の工程に進み、新規に設定する場合には開始時刻設定キー17による入力によりS43で設定を行う。
時刻はS44で浴水循環装置の表示装置14に表示され、使用者はその表示を確認しながら設定する。
【0043】
T14では、開始時刻を確定するかを確認し、確定の場合には、YESを、再度設定する場合にはNOを選択する。
確定されるとS45で殺菌開始時刻は、電解殺菌時刻記憶メモリー部(RAM)24に記憶される。
【0044】
S46では、S81でリセットされた時計の時刻を計測する。ここにいう計測とは、通常の目覚まし時計と同じように本装置に内蔵された時計が駆動するものである。S47で、浴水循環装置の循環ポンプ、加熱ヒーター等の運転が開始される。
【0045】
T15では、電解殺菌装置12の電解開始時刻になったかを確認する。これは、S46における内蔵された時計による時間の計測がS43で設定された設定時刻と同じになったことを意味し、同じになった場合には、電解殺菌開始指令信号を制御部へ送る。
【0046】
S48では、電解殺菌の開始指令にともない、電解殺菌装置12に通水するため電磁弁10が開放される。
電磁弁10が開放されると、S49で浴水は殺菌流路30を通って電解殺菌装置15に流れ込み、通水される。
【0047】
S49の通水開始とともに、S50で塩分添加部21の電磁弁よりなる塩分添加調節弁22が開放される。
入力信号を受けた調節弁22が開放されると、S51で食塩や食塩水を収納した塩分添加部21より電解殺菌装置12に塩分を一定量添加供給する。
【0048】
次にS52で、添加する食塩の量を調節するために前記調節弁22を閉鎖する。S53は、電解殺菌開始時刻にともない殺菌開始指令信号が送られ、装置本体Aに内蔵された殺菌時間測定用のタイマー20が作動し、S54で作動時間の計測が行われる。
【0049】
S55では、電解殺菌装置12に通電が行われ、殺菌が開始する。T16では電解殺菌装置12に通電する電流値の測定を行い、適正な電流であるかを判断する。電流値が正常である場合には、そのままT17へ行き、タイマー20に設定されている時間が経過したか判断する。
【0050】
T17での計測値と設定されている所定の時間とが同じになった場合に、S56へ行き、電解殺菌装置12への通電が停止される。
S57では、その停止信号に応答して電解殺菌装置12への通電と前記通水のための電磁弁10が閉鎖され、S36で通水は停止する。
【0051】
電解殺菌装置への通電および通水が停止した段階で、S59で電解殺菌は終了する。
浴水循環装置の運転を継続する場合には、プログラムは、46へ戻り、次の電解殺菌開始時刻が来るまで、浴水循環および加熱のための運転がなされる。
【0052】
T4で浴水循環装置の運転を終了するため本体Aの電源が切られると、本装置はすべて停止する。
ただし、内蔵されている時計装置については、内部に小型の蓄電池等を設け、正確な時刻を測定することは可能である。
【0053】
【発明の効果】
以上説明したように請求項1では、本発明を用いた装置を使用することにより、脱臭効果が高く、従来では、浴水より異臭が発生した場合には、浴水を交換しなければならない等の作業が不要となり経済的も効果が発揮される。また、塩素による電解殺菌は、紫外線殺菌やオゾン殺菌に比べ、殺菌処理時間が短くてもその効果は高く、効率が良いため急速な殺菌が要求される場合や人が入浴しない時間に限定した殺菌が行える。そのため本発明は、これら電解殺菌による作業効果をより効率的に行うため、食塩や食塩水など塩類を電解殺菌装置に添加供給し、塩素発生効率を高めるとともに、電解殺菌時間に対応して通水し、有効に行えるものとした。また、電解殺菌の開始時間を任意に操作、設定することができるため、異臭が発生したり、浴水を誤って汚した場合等における急速殺菌が行えるとともに、殺菌時間に対応して食塩が添加されることにより効率のよい殺菌ができる。また、電解殺菌開始指令スイッチに、タイマーを組み合わせることにより操作性を向上させた。また、請求項2の発明では、予め定めた時間に殺菌できると共に、電解殺菌時間から次の電解殺菌時間まで通常の浴水循環運転を継続するようにして有効利用ができる。また、請求項3では、予定の電解殺菌時間を任意に設定できるようにして、利用者に合わせて、人が入浴しない時間に限定した殺菌が行えるようにして利用し易くしたものである。
【図面の簡単な説明】
【図1】本発明の一実施例を示す機構概要図
【図2】本発明の一実施例の示す制御ブロック図
【図3】本発明の一実施例を示す機能ブロック図
【図4】本発明の一実施例を示す浴水循環の基本フローチャート図
【図5】本発明の一実施例を示す電解殺菌のフローチャート図
【図6】本発明の請求項2の一実施例を示す電解殺菌フローチャート図
【図7】本発明の請求項3の一実施例を示すフローチャート図
【符号の説明】
A:浴水循環装置、B:制御部(CPU)、1:浴槽、2:プレフィルター、3:浄化フィルター、4:循環ポンプ、5:循環ポンプ制御手段、6:流量センサー、7:加熱ヒーター、8:加熱ヒーター制御手段、9:温度センサー、10:電磁弁、11:流量調節制御手段、12:電解殺菌装置、13:通電制御手段、14:液晶表示装置、15:浴水循環装置電源スイッチ、16:タイマー設定キー、17:開始時刻設定キー、18:電解殺菌開始指令スイッチ、19:電流センサー、20:タイマー、21:塩分添加部、22:塩分添加調節弁、23:ジェットノズル、24:殺菌開始時刻記憶部、25:クロック(内蔵時計)、26::クロックリセットキー、27:三方弁、、28:流れ方向制御手段、29:オゾン殺菌装置、30:殺菌流路、31:通常流路
[0001]
[Industrial application fields]
The present invention relates to a bath water apparatus, and more particularly to a bath water sterilizer in a bath water cleaning apparatus.
[0002]
[Prior art]
A device has been developed in which bath water in a bathtub is purified, sterilized and circulated by a circulation pump, and the purified bath water is sent again into the bathtub.
Purification and sterilization using these devices is performed using an ultraviolet sterilizer or high-pressure discharge type ozone generator that sterilizes by passing the bath water through a sterilization tank with a built-in ultraviolet lamp after processing in a filtration tank made of activated carbon, barley stone, etc. Ozone was sterilized by generating ozone and mixing the ozone into bath water to sterilize.
[0003]
The conventional bath water apparatus not only removes stains of the bath water as described above, but also provides a bath water apparatus that can perform bathing comfortably for 24 hours by simultaneously performing sterilization and heat insulation.
[0004]
[Problems to be solved by the invention]
However, when performing sterilization using an ozone sterilizer, ozone is insoluble in water, so high-concentration ozone must be used, and unreacted ozone remaining in the bath water may diverge from the bath. Therefore, there has been a problem that an expensive exhaust ozone treatment device has to be installed.
[0005]
In addition, in a sterilizer using an ultraviolet lamp, not only does it take a long time to sterilize and purify bath water, but it always has to be sterilized. Had to be cleaned. In addition, since these devices cannot remove sweat, fat, etc. generated from the human body, when sweat, fat, etc. are brought into the bath water, they cause a strange odor in the bath water, which is extremely uncomfortable. there were.
[0006]
An object of the present invention is to provide an apparatus for bathing in a comfortable environment for bathers by improving the drawbacks of the prior art as described above.
[0007]
[Means for Solving the Problems]
The present invention relates to a bath water circulator that pumps bath water in a bathtub and circulates it through a circulation path, cleans it, keeps it warm, and returns it to the bathtub. A sterilization flow path that is changed by an electromagnetic valve is provided, and a salt content addition unit that supplies a certain amount of salt to the bath water taken in the sterilization flow path, and an electrolytic sterilization device provided in the sterilization flow path. An electrolytic sterilization device for generating chlorine for sterilization, and a flow rate control means for adjusting the flow rate of the sterilization flow path for allowing water to flow through, and taking in the electrolytic sterilization device Energizing control means for energizing and controlling the operation of the electrolytic sterilizer to electrolyze the bath water in which salt is added to the bath water by the salt addition unit to generate a predetermined amount of chlorine for sterilization, and operation at any time To start sterilization A start command means for outputting a desterilization start command signal, a timer means for energizing the electrolytic sterilizer in response to the start command means, and generating chlorine for a certain period of time, and a sterilization after measurement by the timer means is terminated. Then, the problem was solved by providing a bath water circulation device having an electrolytic sterilization device characterized in that the normal flow of water circulation was continued by changing to a normal flow path with an electromagnetic valve that changes the flow direction. .
Furthermore, the present invention provides a bath water circulation device that pumps bath water in a bathtub with a circulation pump, circulates it through the circulation path, cleans it, retains the heat, and returns it to the bathtub. A sterilization flow path that is changed by an electromagnetic valve to be changed is provided, a salt content addition unit that supplies a certain amount of salt to the bath water taken in the sterilization flow path, and an electrolytic sterilization device provided in the sterilization flow path An electrolytic sterilization device for generating chlorine for sterilization, comprising a flow rate control means for enabling adjustment of the flow rate of the sterilization flow path for allowing the bath water to flow, and taking in by the electrolytic sterilization device Energization control means for energizing and controlling the operation of the electrolytic sterilization apparatus to electrolyze the bath water in which salt is added to the bath water by the salt addition unit to generate a predetermined amount of chlorine for sterilization, and a predetermined time zone Set to perform electrolytic sterilization. An electrolysis sterilization start command signal for starting sterilization at the start time is output, and after the sterilization is completed, a control means is provided for continuing normal bath water circulation operation by changing to a normal flow path using an electromagnetic valve that changes the flow direction. The problem was solved by using a bath water circulation device having an electrolytic sterilization device characterized in that.
Further, in the present invention, the start command means is a clock means for starting sterilization of the electrolytic sterilizer at an arbitrary time, and is set with a time setting means for setting the clock means at an arbitrary time. The problem has been solved by providing a bath water circulation device having an electrolytic sterilization device, further comprising a set time storage means for storing the stored time.
[0008]
【Example】
The basic structure of the first aspect of the present invention will be described with reference to FIG.
The appearance and internal mechanism of the present invention are as shown in FIG.
[0009]
The bathtub 1 and the pre-filter 2 for sucking in the bath water and removing hair and the like, the purification filter section 3 for cleaning the bath water, the circulation pump 4 for circulating the bath water, and the bath water Heater 7 for heating water, electrolytic sterilization device 12 for sterilizing bath water, electromagnetic valve 10 for flow rate adjustment or electromagnetic valve 27 for changing the flow direction, and sterilization flow path for passing water to the electrolytic sterilization device 30 and the jet nozzle 23 which is a discharge port for returning the purified and sterilized bath water to the bathtub again.
[0010]
The bath water circulation device main body A is provided with a display device 14 made of liquid crystal or the like on the front surface of the device and operation keys and switches for selecting, confirming, changing, etc. various functions.
The operation switches are the power switch 15 of the apparatus main body A, the timer setting switch 16, the time reset switch 26 of the built-in clock device 25, the electrolytic sterilization start command key 18, and the like.
[0011]
These operation switches are operated to set the temperature and time. The display device 14 of the liquid crystal panel displays the current time, the temperature of the bath water, a warning when an abnormality occurs, and the like.
[0012]
The inside of the electrolytic sterilization apparatus 12 in the electrolytic sterilization is a cathode in which the outside of the anode chamber formed by joining two anode cases sandwiched between the anode plates on the outer surface is joined by the two cathode cases holding the cathode plates. It is covered with a chamber and formed as an electrolytic cell having a double closed chamber electrode chamber structure. When the electrolysis sterilizer 12 is energized, current flows through the anode plate and the cathode plate, the bath water is electrolyzed, chlorine ions are generated, and the bath water is sterilized and deodorized efficiently.
[0013]
A basic description of the main unit A according to the first embodiment of the present invention will be given based on the flowchart of FIG.
[0014]
When the main unit A is first turned on by the power switch 15 of the bath water circulation unit main unit A in S1, the operation is started. In S2, when the power is turned on, the circulation pump control unit 5 instructs to drive the circulation pump 4, and the bath water of the bath water device is circulated.
[0015]
In S3, a flow rate sensor 6 is installed to check whether the purification filter 3 and the piping for circulating the bath water are clogged with dust or dirt, and detects the flow rate. Whether the flow rate detected by the flow rate sensor 6 is appropriate is confirmed at T1, and if normal, the process proceeds to YES, and if the flow rate is insufficient, the process proceeds to S7 with NO.
[0016]
In S7, the user confirms that an abnormality has occurred and displays it on the display device 14 composed of a liquid crystal panel installed in the bath water circulation device in S8, or indicates that the abnormality has occurred in the flow rate by a warning buzzer or the like. To warn.
[0017]
If the flow rate is appropriate, the process goes to S4 and heating by the heater 7 is performed. In S5, the temperature of the bath water is detected by the temperature sensor 9 provided in the pipe. When the temperature is lower than the temperature set by the temperature setting key, a signal is sent from the heating control relay switch 8 and the switch of the heater 7 is turned on. Put in and heat.
When the temperature of the bath water is high, the heater 7 is turned off to adjust the temperature.
[0018]
When the temperature of the bath water exceeds the set range, it is confirmed that an abnormality has occurred in S7 due to abnormal heating of the heater 7, etc., and a warning is issued in S8 as in the case of an abnormal flow rate.
If electrolytic sterilization of the bath water is performed at T3, the process proceeds to the electrolytic sterilization routine of S6, and if sterilization is not performed, the process proceeds to T4.
[0019]
The electrolytic sterilization routine is performed according to the flow shown in FIG.
In S6, the routine proceeds to an electrolytic sterilization routine. In S9, when the user performs sterilization at an arbitrary time, the electrolytic sterilization start command switch 18 is turned on.
[0020]
In S10, in response to the input signal of the start switch of the electrolytic sterilizer 12, the electromagnetic valve 10 for adjusting the flow rate is opened, passes through the sterilization flow path 30, and is passed through the electrolytic sterilizer 12 in S11. .
[0021]
Alternatively, water is passed through the electrolytic sterilizer 12 by the electromagnetic valve 27 formed of a three-way valve for changing the flow direction.
It is also possible to control the flow direction by providing an hour valve in each of the sterilization flow path and the normal flow path for normal circulation.
[0022]
Along with the start of water flow in S11, in S12, the salt addition control valve 22 including the electromagnetic valve of the salt addition unit 21 is opened.
In S13, when the control valve 22 that receives the input signal is opened, a certain amount of salt is added and supplied to the electrolytic sterilizer 12 from the salt adding unit 21 that stores salt and saline.
[0023]
Next, in S14, the control valve 22 is closed in order to adjust the amount of salt to be added. By an input operation of the electrolysis start command switch 18, a signal for energization is sent from the energization control relay switch 13 to the electrolysis sterilizer 12 in S15, and energization is started.
[0024]
When energization is started, the bath water is electrolyzed by each electrode plate of the electrolytic cell provided inside the electrolytic sterilizer 12, chlorine is generated, the chlorine is mixed with the bath water, supplied to the bathtub, and sterilized. Is started.
[0025]
At the start of electrolytic sterilization, at S16, the current flowing through the electrode plate is detected by the current sensor 19, a leakage sensor, etc., and in order to prevent a leakage accident at T6, if more than a predetermined current value flows, at S21, The occurrence of abnormality is confirmed, and a warning is given by the display device 14 in S22.
[0026]
If the current value is normal within the appropriate range at T6, the process goes to S17 to start electrolytic sterilization. When the electrolytic sterilization start command switch 18 is turned off at T7, the energization signal for electrolysis to the electrolytic sterilizer 12 is stopped at S18.
[0027]
In S19, in response to the stop of the energization signal, the energization to the electrolytic sterilizer 12 and the electromagnetic valve 10 for water flow are closed, and water flow is stopped.
In S20, the electrolytic sterilization process is terminated by passing water and stopping energization.
[0028]
When the electrolytic sterilization process ends, the program returns to the flow of FIG.
The bath water circulator is continuously operated even after the electrolytic sterilization is finished, until the operation such as circulation and filtration is performed by the normal flow path 31 and the operation stop of the apparatus is selected at T4.
[0029]
Next, an embodiment of claim 2 will be described. The basic operation of this apparatus is the flow shown in FIG. 4, and since the contents have already been described, a description thereof will be omitted.
The operation of the present invention will be described with reference to the electrolytic sterilization flowchart of FIG.
If electrolytic sterilization of bath water is performed at T3, the routine proceeds to an electrolytic sterilization routine. If sterilization is not performed, the routine proceeds to T4.
[0030]
In S23, when the user performs sterilization at an arbitrary time, the electrolytic sterilization start switch 18 is turned on.
In S24, the electromagnetic valve 10 for changing the flow direction is opened in response to the input signal of the start switch of the electrolytic sterilizer 12, and in S25, water is passed to the electrolytic sterilizer 12.
[0031]
Along with the start of water flow in S25, the salt addition control valve 22 composed of the electromagnetic valve of the S26 salt addition unit 21 is opened.
When the control valve 22 that has received the input signal is opened, a predetermined amount of salt is added to the electrolytic sterilizer 12 from the salt content adding unit 21 storing salt and saline in S27.
[0032]
In step S28, the control valve 22 is closed to adjust the amount of salt to be added. In S29, a timer built in the apparatus is activated in accordance with the operation of the electrolytic sterilization start switch 18, and the operation time is measured in S30.
When the timer device 20 is activated, a signal for energization is sent from the energization control relay switch 13 to the electrolytic sterilization device 12 in S31, and energization is started.
[0033]
When energization is started, the bath water is electrolyzed by each electrode plate of the electrolytic cell provided inside the electrolytic sterilizer 12, chlorine is generated, the chlorine is mixed with the bath water, supplied to the bathtub, and sterilized. Is done.
[0034]
In S32, the current flowing through the electrode plate is detected by the current sensor 19 or the leakage sensor, and in order to prevent a leakage accident, if the current flows more than a predetermined current value, the occurrence of abnormality is confirmed in S38 and the current is turned on. Stop. In S39, a warning is given for occurrence of an abnormality.
[0035]
When the current value is normal within the appropriate range at T9, electrolytic sterilization is started at S33.
Next, it goes to T10, the preset time required for electrolytic sterilization is measured by the timer 20, and it is detected whether the time has passed.
[0036]
When the set time is reached, the energization for electrolytic sterilization is stopped in S34, and when the set time is not reached, the process goes to S30 again and the electrolytic sterilization is continued with the measurement of time.
When the set time of the timer elapses in S34, a signal to stop energization is sent to the electrolytic sterilizer 12.
[0037]
In S35, in response to the stop signal, the solenoid valve 10 for energizing the electrolytic sterilizer 12 and the water flow is closed, and the water flow is stopped in S36.
In S37, the electrolytic sterilization process is terminated.
[0038]
When the electrolytic sterilization process ends, the program returns to the flow of FIG.
The bath water circulator is continuously operated even after the electrolytic sterilization is finished, until the operation such as circulation and filtration is performed by the normal flow path 31 and the operation stop of the apparatus is selected at T4.
[0039]
Next, an embodiment of claim 3 will be described. The basic operation of this apparatus is the flow shown in FIG. 4, and since the contents have already been described, a description thereof will be omitted.
The operation of the present invention will be described with reference to the flowchart of FIG.
[0040]
When the power source 15 of the bath water circulation device is turned on in S40, the main unit A is driven. At the same time when the power is turned on, the clock device 25 built in the device is turned on to start the clock function. In S <b> 42, the clock 25 displays information such as the time corresponding to the situation at the time of insertion on the display device 14.
[0041]
The user confirms the display, and if the time is incorrect at T12, the clock is reset to the correct time by the clock reset key 26 at S63, and the clock 25 is set in a normal state.
[0042]
Next, at T13, the user sets his / her desired sterilization start time. If the start time has already been set, the process proceeds to the next step as it is, and if a new setting is to be made, the setting is made in S43 by input from the start time setting key 17.
The time is displayed on the display device 14 of the bath water circulation device in S44, and the user sets it while confirming the display.
[0043]
At T14, it is confirmed whether or not the start time is to be confirmed. If it is confirmed, YES is selected, and if it is set again, NO is selected.
When confirmed, the sterilization start time is stored in the electrolytic sterilization time storage memory (RAM) 24 in S45.
[0044]
In S46, the time of the clock reset in S81 is measured. The measurement here means that a clock built in the apparatus is driven in the same way as a normal alarm clock. In S47, the operation of the circulating pump, the heater, etc. of the bath water circulator is started.
[0045]
In T15, it is confirmed whether the electrolysis start time of the electrolytic sterilizer 12 has come. This means that the time measurement by the built-in clock in S46 is the same as the set time set in S43, and if it is the same, an electrolytic sterilization start command signal is sent to the control unit.
[0046]
In S48, the electromagnetic valve 10 is opened to allow water to flow through the electrolytic sterilization device 12 in accordance with the start command for electrolytic sterilization.
When the electromagnetic valve 10 is opened, the bath water flows through the sterilization flow path 30 into the electrolytic sterilization device 15 and is passed through in S49.
[0047]
Along with the start of water flow in S49, the salt addition control valve 22 including the electromagnetic valve of the salt addition unit 21 is opened in S50.
When the control valve 22 that has received the input signal is opened, a certain amount of salt is added and supplied to the electrolytic sterilizer 12 from the salt adding unit 21 storing salt and saline in S51.
[0048]
In step S52, the control valve 22 is closed to adjust the amount of salt to be added. In S53, a sterilization start command signal is sent at the time of electrolytic sterilization start, the sterilization time measurement timer 20 built in the apparatus main body A is operated, and the operation time is measured in S54.
[0049]
In S55, the electrolysis sterilizer 12 is energized and sterilization starts. In T16, a current value for energizing the electrolytic sterilizer 12 is measured to determine whether the current is appropriate. If the current value is normal, the process goes to T17 as it is to determine whether the time set in the timer 20 has elapsed.
[0050]
When the measured value at T17 is equal to the set predetermined time, the process goes to S56, and the energization to the electrolytic sterilizer 12 is stopped.
In S57, in response to the stop signal, the energization of the electrolytic sterilizer 12 and the electromagnetic valve 10 for water flow are closed, and water flow is stopped in S36.
[0051]
At the stage where energization and water flow to the electrolytic sterilizer are stopped, the electrolytic sterilization is terminated in S59.
If the operation of the bath water circulation device is to be continued, the program returns to 46 and the operation for bath water circulation and heating is performed until the next electrolytic sterilization start time comes.
[0052]
When the power source of the main body A is turned off to end the operation of the bath water circulation device at T4, all the devices are stopped.
However, the built-in clock device can be provided with a small storage battery or the like to measure the accurate time.
[0053]
【The invention's effect】
As described above, in claim 1, by using the apparatus using the present invention, the deodorizing effect is high. Conventionally, when a strange odor is generated from the bath water, the bath water must be replaced, etc. This work is no longer necessary and is economically effective. Electrolytic sterilization with chlorine is effective even when the sterilization time is short compared to ultraviolet sterilization or ozone sterilization, and is efficient so that sterilization is limited to cases where rapid sterilization is required or when people do not bathe. Can be done. Therefore, in order to perform the work effect by the electrolytic sterilization more efficiently, the present invention adds and supplies salts such as salt and saline to the electrolytic sterilizer to increase the efficiency of chlorine generation and to pass water corresponding to the electrolytic sterilization time. And it was supposed to be effective. In addition, since the start time of electrolytic sterilization can be manipulated and set arbitrarily, rapid sterilization can be performed when a bad odor occurs or the bath water is mistakenly soiled, and salt is added according to the sterilization time. This makes it possible to sterilize efficiently. In addition, the operability is improved by combining a timer with the electrolysis sterilization start command switch. Further, in the invention of claim 2, it can be sterilized at a predetermined time, and can be effectively used by continuing normal bath water circulation operation from the electrolytic sterilization time to the next electrolytic sterilization time. Further, according to the third aspect, the scheduled electrolytic sterilization time can be arbitrarily set, and the sterilization limited to the time when the person does not take a bath can be performed according to the user so that the user can easily use it.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a mechanism showing an embodiment of the present invention. FIG. 2 is a control block diagram showing an embodiment of the invention. FIG. 3 is a functional block diagram showing an embodiment of the invention. Fig. 5 is a basic flow chart of bath water circulation showing an embodiment of the invention. Fig. 5 is a flow chart of electrolytic sterilization showing an embodiment of the invention. Fig. 6 is an electrolytic sterilization flowchart showing an embodiment of claim 2 of the invention. FIG. 7 is a flowchart showing one embodiment of claim 3 of the present invention.
A: bath water circulation device, B: control unit (CPU), 1: bathtub, 2: pre-filter, 3: purification filter, 4: circulation pump, 5: circulation pump control means, 6: flow sensor, 7: heater, 8: Heating heater control means, 9: Temperature sensor, 10: Solenoid valve, 11: Flow rate adjustment control means, 12: Electrolytic sterilization device, 13: Energization control means, 14: Liquid crystal display device, 15: Bath water circulation device power switch, 16: Timer setting key, 17: Start time setting key, 18: Electrolytic sterilization start command switch, 19: Current sensor, 20: Timer, 21: Salt addition unit, 22: Salt addition control valve, 23: Jet nozzle, 24: Sterilization start time storage unit, 25: clock (built-in clock), 26 :: clock reset key, 27: three-way valve, 28: flow direction control means, 29: ozone sterilizer, 3 : Sterilization passage, 31: Normal flow path

Claims (3)

浴槽の浴水を循環ポンプで汲み上げて循環路を通して循環させて清浄処理、保温処理して浴槽へ戻す浴水循環装置において、前記循環路の通常流路に接続されて流れ方向を変更させる電磁弁により流路変更される殺菌流路を設け、該殺菌流路には取り込んだ浴水に塩分を一定量添加供給する塩分添加部と、殺菌流路に設けられた電解殺菌装置に浴水を通水させるための殺菌流路部の流量を調節可能にするための流量制御手段とを備えた、殺菌のための塩素を発生させる電解殺菌装置とを備え、該電解殺菌装置で取り込んだ浴水に塩分添加部により塩分を添加した浴水を電気分解して殺菌のための塩素を所定量発生させるために前記電解殺菌装置の動作を通電制御する通電制御手段と、任意の時間に操作することで、殺菌を開始する電解殺菌開始指令信号を出力する始動指令手段と、該始動指令手段に応答して前記電解殺菌装置に通電させ、塩素を一定時間発生させるためのタイマー手段と、該タイマー手段の計測後殺菌を終了して、流れ方向を変更させる電磁弁により通常流路に変えて通常の浴水循環運転を継続するようにしたことを特徴とする電解殺菌装置を有する浴水循環装置。In the bath water circulator that pumps the bath water in the bathtub and circulates it through the circulation path, cleans it, keeps it warm, and returns it to the bathtub, an electromagnetic valve connected to the normal flow path of the circulation path to change the flow direction A sterilization channel to be changed is provided, and a salt content addition unit for supplying a certain amount of salt to the bath water taken in the sterilization channel, and the bath water to the electrolytic sterilization device provided in the sterilization channel An electrolysis sterilization device for generating chlorine for sterilization, and a flow rate control means for making the flow rate of the sterilization flow path section for adjusting the flow rate of the sterilization flow path portion, By operating at an arbitrary time with an energization control means for energizing and controlling the operation of the electrolytic sterilization apparatus to electrolyze the bath water added with salt by the addition unit and generate a predetermined amount of chlorine for sterilization, Electrolytic sterilization to start sterilization Start command means for outputting a command signal, energizing the electrolytic sterilization apparatus in response to the start command means, timer means for generating chlorine for a certain period of time, and sterilization after measurement of the timer means, A bath water circulation apparatus having an electrolytic sterilization apparatus characterized in that a normal bath water circulation operation is continued by changing to a normal flow path by an electromagnetic valve for changing the flow direction. 浴槽の浴水を循環ポンプで汲み上げて循環路を通して循環させて清浄処理、保温処理して浴槽へ戻す浴水循環装置において、前記循環路の通常流路に接続されて流れ方向を変更させる電磁弁により流路変更される殺菌流路を設け、該殺菌流路には取り込んだ浴水に塩分を一定量添加供給する塩分添加部と、殺菌流路に設けられた電解殺菌装置に浴水を通水させるための殺菌流路部の流量を調節可能にするための流量制御手段とを備えた、殺菌のための塩素を発生させる電解殺菌装置とを備え、該電解殺菌装置で取り込んだ浴水に塩分添加部により塩分を添加した浴水を電気分解して殺菌のための塩素を所定量発生させるために前記電解殺菌装置の動作を通電制御する通電制御手段と、所定の時間帯に電解殺菌を行うように設定された開始時刻に殺菌を開始する電解殺菌開始指令信号を出力すると共に、殺菌終了後、流れ方向を変更させる電磁弁により通常流路に変えて通常の浴水循環運転を継続する制御手段を備えたことを特徴とする電解殺菌装置を有する浴水循環装置。In the bath water circulator that pumps the bath water in the bathtub and circulates it through the circulation path, cleans it, keeps it warm, and returns it to the bathtub, an electromagnetic valve connected to the normal flow path of the circulation path to change the flow direction A sterilization channel to be changed is provided, and a salt content addition unit for supplying a certain amount of salt to the bath water taken in the sterilization channel, and the bath water to the electrolytic sterilization device provided in the sterilization channel An electrolysis sterilization device for generating chlorine for sterilization, and a flow rate control means for making the flow rate of the sterilization flow path section for adjusting the flow rate of the sterilization flow path portion, In order to electrolyze the bath water to which salt has been added by the addition unit and to generate a predetermined amount of chlorine for sterilization, an energization control means for energizing and controlling the operation of the electrolysis sterilization apparatus, and electrolysis sterilization in a predetermined time zone Start time set to An electrolysis sterilization start command signal for starting sterilization is output, and after completion of sterilization, a control means is provided for changing the flow direction to a normal flow path and continuing normal bath water circulation operation by an electromagnetic valve. A bath water circulation device having an electrolytic sterilization device. 請求項2において、前記始動指令手段は、電解殺菌装置の殺菌を任意の時刻に開始するためのクロック手段であって、該クロック手段を任意の時刻に設定するための時刻設定手段と、設定された時刻を記憶するための設定時刻記憶手段とを更に備えたことを特徴とする電解殺菌装置を有する浴水循環装置。3. The start command means according to claim 2, wherein the start command means is clock means for starting sterilization of the electrolytic sterilizer at an arbitrary time, and is set with time setting means for setting the clock means at an arbitrary time. A bath water circulation apparatus having an electrolytic sterilization apparatus, further comprising set time storage means for storing the time.
JP10898495A 1995-04-10 1995-04-10 Bath water circulation device having an electrolysis sterilizer Expired - Fee Related JP3672614B2 (en)

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KR100475263B1 (en) * 1997-02-14 2005-07-07 서순기 Circulating water sterilizer
US6627073B2 (en) 1999-12-16 2003-09-30 Sanyo Electric Co, Ltd. Water treatment device
JP4716617B2 (en) * 2001-07-31 2011-07-06 三洋電機株式会社 Water treatment equipment
JP2005121272A (en) * 2003-10-15 2005-05-12 Sanden Corp Drinking water supplying device
JP2005237403A (en) * 2004-02-24 2005-09-08 Matsushita Electric Works Ltd Sliminess prevention device for bathroom
CN109626679A (en) * 2019-02-27 2019-04-16 陆鑫 A kind of processing method of industrial wastewater treatment device and its industrial wastewater

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