JP4183785B2

JP4183785B2 - Pipeline sterilization purification device in bath water circulation device

Info

Publication number: JP4183785B2
Application number: JP29420297A
Authority: JP
Inventors: 伸一深田; 義夫山口
Original assignee: Janome Sewing Machine Co Ltd
Current assignee: Janome Sewing Machine Co Ltd
Priority date: 1997-10-27
Filing date: 1997-10-27
Publication date: 2008-11-19
Anticipated expiration: 2017-10-27
Also published as: JPH11128099A

Description

【０００１】
【産業上の利用分野】
本発明は、熱水にて循環管路を熱水洗浄し、その殺菌浄化後の排出時に循環管路内で殺菌浄化した熱水を循環管路の吸込み箇所及び流出箇所より排水し且つその箇所を熱水洗浄して全体の管路を熱水清浄できるようにした浴水循環装置における管路殺菌浄化装置に関する。
【０００２】
【従来の技術】
従来の浴水循環装置は、長期間の使用により装置本体と配管に微生物膜が付着することがあり、安全衛生問題のため、ある一定期間毎に装置を殺菌、洗浄する必要があった。またその方法は、浴槽外の配管ではなく、浴槽内の湯に直接殺菌剤を投入して浴水循環装置を循環させて、殺菌洗浄するものであった。
【０００３】
【発明が解決しようとする課題】
このように、浴槽の湯に殺菌剤を投入するために、多量の薬品を使わなければならず、不経済であったり、薬品使用後に浴槽を洗浄しなければならなかった。このようなことから、当該出願人は、循環管路内のみを熱水にて殺菌・洗浄する装置を開発した。該装置では、循環管路の要部を熱水循環させ、この熱水は浴槽外に排出する構成であった。即ち、熱水を外部に流出して浴槽箇所での入浴者に熱水が当たらないようにして安全性を図っている。
これは、熱水が循環管路の要部にて循環されて排出されるものであるが、更に全体的な循環管路に対しても熱水洗浄できる構成が要望されている。即ち、循環管路全体に対しての熱水殺菌洗浄を定期的に行うことが要望されていた。
【０００４】
【課題を解決するための手段】
そこで、発明者は、前記課題を解決すべく、鋭意，研究を重ねた結果、本発明を、浴水を低温から高温に加熱可能としたヒータと、浴水を循環させるための循環ポンプと、該循環ポンプにて浴水が浴槽から前記循環ポンプ、前記ヒータを介して再び浴槽に戻るようにした循環管路と、該循環管路の前記浴槽からの吸込み側の管路に一端を連結し、他端を前記循環管路の前記浴槽への流出側の管路に連結する連結管路と、前記循環管路の前記浴槽への流出側の管路に連結する連結管路の結合箇所から前記循環管路中の前記循環ポンプの吐出側管路に一端を連結し、他端を前記循環管路の吸込み側の管路に連結する前記連結管路の結合箇所から吸込み側の管路に連結する副連結管路とからなり、管路殺菌洗浄時には、前記連結管路及び副連結管路を介して循環管路内の浴水を前記ヒータにて高温にしつつ循環可能とし、管路殺菌洗浄後の排水時には、前記循環管路内で殺菌浄化した熱水を前記流出側の管路、前記連結管路、前記副連結管路を介して前記吸込み側の管路から排水し、さらに前記吸込み側の管路、前記循環管路を介して前記流出側の管路から排水するようにしてなることを特徴とする浴水循環装置における管路殺菌浄化装置としたことにより、熱水にて循環管路を熱水殺菌洗浄し、その殺菌浄化後の排出時に循環管路内で殺菌浄化した熱水を循環管路の吸込み箇所及び流出箇所より排水し且つその箇所を熱水殺菌洗浄し、これにより全体の管路を熱水殺菌清浄できるようにし、前記の課題を解決したものである。
【０００５】
【実施の形態】
まず、本発明の第１の実施の形態について図面に基づいて説明すると、図５及び図８に示すように、浴水循環装置は、主に、浴水を低温から高温に加熱するセラミックヒータ等のヒータ１と、微細なごみ及び汚れなる不純物を浴水から濾過するフィルタ２と、浴水を殺菌する紫外線殺菌装置３と、浴水を循環させるための循環ポンプＰと、該循環ポンプＰにて浴水が浴槽１０から浴槽１０に戻るように循環する循環管路５等とから構成されている。
【０００６】
そのフィルタ２は、種類としては、精密フィルタ又は普通フィルタであり、活性石，活性炭を充填したものとして吸着剤濾材フィルタ材として使用したり、或いは、織布又は不織布からなりフィルタ素材から構成するものもある。何れにしても、不純物で微細なるごみ及び汚れを除去するものである。
【０００７】
連結管路６は、前記循環管路５の吸込み側寄りの適宜な箇所と、前記循環管路５の流出側寄りの適宜な箇所とを連結すると前記循環管路５の流出側管路５ｂの適宜な箇所とを連結するように構成され、前記循環ポンプＰ，ヒータ１，フィルタ２，紫外線殺菌装置３を配置された循環管路５と連結管路６とで閉ループが構成される。また、循環ポンプＰの次に、ヒータ１，フィルタ２，紫外線殺菌装置３の順序に限定されず、適宜のものが設けられる。また、前記循環管路５において、前記連結管路６の両端との結合箇所よりも、吸込み側を汲水側管路５ａと、流出側を流出側管路５ｂとそれぞれ称する。前記汲水側管路５ａ及び流出側管路５ｂ上には、前記循環ポンプＰ，ヒータ１，フィルタ２，紫外線殺菌装置３は設けられないように構成されている。前記汲水側管路５ａの吸込み口には、プレフィルタ８が、前記流出側管路５ｂの流出口には、ジェット噴流が出るように噴出部９が設けられている。また、前記連結管路６は、なるべくプレフィルタ８，噴出部９寄りに設けられることが好ましい。
【０００８】
副連結管路７は、前記循環管路５の流出側での連結管路６の結合箇所よりも中心側寄りの適宜な位置と，前記循環管路５の吸込み側での連結管路６の結合箇所よりも吸込み側寄りの適宜な位置との間に設けられている。三方弁Ｖは、前記連結管路６の流出側寄りの基部に設けられている。即ち、循環管路５と連結管路６との結合箇所に設けられている。また、第１開閉弁Ｖ１は、前記循環管路５の吸込み側で，連結管路６の結合箇所と副連結管路７の結合箇所との間の適宜な位置に設けられている。さらに、第２開閉弁Ｖ２は、前記副連結管路７の適宜の位置に設けられている。具体的には、第２開閉弁Ｖ２は、副連結管路７において循環管路５の流出側寄りに設けられている。また、前記副連結管路７は、熱水が停滞する虞があるため，なるべく短くすることが好適である。
【０００９】
熱水管路洗浄するときには、三方弁Ｖのポート▲４▼からポート▲２▼に流通するように切換えられ、且つ第１開閉弁Ｖ１及び第２開閉弁Ｖ２はそれぞれ開放に切換えらる。これによって、図６に示すように、循環管路５において、浴水がヒータ１にて高温にされつつ前記循環ポンプＰ，ヒータ１，フィルタ２，紫外線殺菌装置３を配置された循環管路５と連結管路６とでの閉ループと、この閉ループに並列に設けた副連結管路７と汲水側管路５ａと前記閉ループの一部とで第２閉ループを構成して、この内部の浴水が循環ポンプＰの動作にて循環する。そして所定の温度の熱水とした後、所定の時間内熱水管路洗浄を行う。その後の熱水排出モードにおいては、三方弁Ｖのポート▲３▼からポート▲２▼に流通するように切換えられ、且つ第１開閉弁Ｖ１が閉鎖され、第２開閉弁Ｖ２は開放状態を保持する。これによって、図７に示すように、流出側管路５ｂと連結管路６とが逆方向循環となって汲水側管路５ａから熱水が浴槽１０内に流出してその汲水側管路５ａ内及びプレフィルタ８箇所を熱水にて殺菌洗浄を行なう。これは所定時間で終了し、今度は、通常循環と同様となるように弁制御される。即ち、図８に示すように、三方弁Ｖはポート▲４▼からポート▲３▼に流通するように切換えられ、且つ第１開閉弁Ｖ１は開放され、第２開閉弁Ｖ２は閉鎖される。これによって、未だに閉ループ内に残っている熱水が流出側管路５ｂ及び噴出部９箇所を殺菌洗浄をしつつ浴槽１０内に戻る。このような熱水循環にて、循環管路５の全ての箇所を殺菌洗浄できる。即ち、全水系殺菌洗浄ができる。
【００１０】
本発明では、弁制御を含めて全て自動操作にて行なわれる。この構成は、図１に示すように、ブロック図にて構成されている。即ち、中央演算処理装置２１（ＣＰＵ）が設けられ、熱水管路殺菌洗浄の開始・終了等を制御する熱水殺菌洗浄指令手段２２と、前記三方弁Ｖ，第１開閉弁Ｖ１及び第２開閉弁Ｖ２の切換を制御する弁制御手段２３と、第１温度センサー２５及び第２温度センサー２６を切換制御する温度センサー切換手段２４と、ランプ制御手段２７と、ヒータ制御手段２８とが設けられている。前記熱水殺菌洗浄指令手段２２には、循環管路内を熱水洗浄するために洗浄開始時間を設定する時間設定部と、設定された洗浄開始時間と洗浄時間を記憶する時間記憶部と、洗浄開始時間と洗浄時間を適宜変更する時間変更部とを有している。前記中央演算処理装置２１，熱水殺菌洗浄指令手段２２，弁制御手段２３，温度センサー切換手段２４，ランプ制御手段２７，ヒータ制御手段２８等を総称して制御部Ａと称する。
【００１１】
前記第１温度センサー２５は浴槽湯として所望の湯温（例えば，４２℃等）を検知するものであり，第２温度センサー２６は、熱水管路洗浄時において、６５℃乃至７０℃以上か否かを検知するものである。この２つの温度センサーを通常運転モード，熱水殺菌洗浄モードにおいて前記温度センサー切換手段２４にて切換えるものである。また、ランプ制御手段２７にてＵＶランプ３ａのＯＮ，ＯＦＦが制御される。さらに、ヒータ制御手段２８にてヒータ１のＯＮ，ＯＦＦが制御されている。
【００１２】
図２及び図３は、本発明は、循環管路内の湯温制御及び三方弁Ｖ，第１開閉弁Ｖ１，第２開閉弁Ｖ２等の弁の切換指令の制御のフローチャートであり、図２のフローチャートの▲１▼の状態から、所定の設定時間後に、全水系熱水殺菌洗浄モードとなり（Ｓ１１参照）、温度センサー切換手段２４にて切換えられ（Ｓ１２参照）、第２温度センサー（熱水タイプ）２６がＯＮとなる（Ｓ１３参照）。このときには、ヒータ１はＯＮ状態を保持している。そして紫外線殺菌装置３のＵＶランプ３ａが消灯する（Ｓ１４参照）。そして、弁制御手段２３にて三方弁Ｖはポート▲４▼からポート▲２▼に流通して、管路内循環に変更するように切換えられ（Ｓ１５参照）、且つ第２開閉弁Ｖ２が開放され（Ｓ１６参照）、第１開閉弁Ｖ１はそのままの開放状態を保持する。そして、前述の熱水殺菌洗浄モードを行ったときから、熱水殺菌洗浄指令手段２２が動作して、熱水管路殺菌洗浄開始するまでの温度上昇を勘案した所定時間を基に浴水温度を計測し（Ｓ１７参照）、そして、循環管路５内の温度が第２温度センサー２６を介して所定温度（例えば７０℃）か否かを自動的に検知し（Ｓ１８参照）、所定温度を超えない場合には、ヒータ１のＯＮ状態を保持する。
【００１３】
また、管路内の浴水が所定温度（例えば７０℃）となった場合には、ヒータ１がＯＦＦとなる（Ｓ１９参照）。この状態において、循環ポンプＰのポンプ圧にて閉ループ管内の浴水が循環して熱水管路殺菌洗浄作業が開始となり、この状態は図２に示す通りである。このとき、汲水側管路５ａのプレフィルタ８寄りには弁は存在しないが、三方弁Ｖの連結管路６箇所及び副連結管路７箇所の水頭が浴槽１０箇所よりも上部にあるためと熱水管路内の湯が外部に流出しないことから、汲水側管路５ａ又はプレフィルタ８からの浴水の流入はない。そして、前記熱水管路殺菌洗浄作業開始のときから、熱水殺菌洗浄指令手段２２が動作して、熱水管路洗浄する所定時間（７０℃で約５分）を計測し（Ｓ２０参照）、この所定時間経過したか否かを判断し（Ｓ２１参照）、所定時間が経過しない場合には前記Ｓ１８の手前に戻り、その所定時間が経過した場合には、熱水管路殺菌洗浄作業は終了し、今度は、吸排ユニット熱水殺菌モードとなる（Ｓ２２参照）。
【００１４】
まず、汲水部熱水殺菌モードとなる（Ｓ２３参照）。そして、弁制御手段２３にて三方弁Ｖはポート▲３▼からポート▲２▼に流通して汲水部方向に変更するように切換えられ（Ｓ２４参照）、且つ第１開閉弁Ｖ１は閉鎖される（Ｓ２５参照）。このとき第２開閉弁Ｖ２は開放状態を保持する。これによって流出側管路５ｂと連結管路６とが逆方向循環となって汲水側管路５ａから熱水が浴槽１０内に流出してその汲水側管路５ａ内及びプレフィルタ８箇所を熱水にて殺菌洗浄を行なう。この汲水部熱水殺菌については、熱水殺菌洗浄指令手段２２にて汲水部熱水殺菌する所定時間を計測し（Ｓ２６参照）、この所定時間経過したか否かを判断する（Ｓ２７参照）。
【００１５】
この後に▲２▼に移行し、図３のフローチャートの▲２▼から始まる。そして前記所定時間が経過しない場合には前記Ｓ２６の手前に戻り、その所定時間が経過した場合には、今度は、排出部熱水殺菌モードとなる（Ｓ２８参照）。そして、弁制御手段２３にて三方弁Ｖはポート▲４▼からポート▲３▼に流通して排出部側に変更するように切換えられ（Ｓ２９参照）、且つ第１開閉弁Ｖ１は開放され（Ｓ３０参照）、第２開閉弁Ｖ２は閉鎖される（Ｓ３１参照）。これによって循環管路５は順方向循環となってプレフィルタ８側から浴水を吸って流出側管路５ｂ側から噴出部９から熱水が浴槽１０内に流出してその流出側管路５ｂ内及び噴出部９箇所を熱水にて排出部熱水殺菌洗浄を行なう。この排出部熱水殺菌洗浄については、熱水殺菌洗浄指令手段２２にて排出部熱水殺菌の所定時間を計測し（Ｓ３２参照）、この所定時間経過したか否かを判断し（Ｓ３３参照）、所定時間が経過しない場合には前記Ｓ３２の手前に戻り、その所定時間が経過した場合には、その排出部熱水殺菌モードは終了し、次に、この全水系熱水殺菌洗浄を終了するか否かを判断し（Ｓ３４参照）、終了するとすると、今度は、温度センサー切換手段２４にて温度センサーが切換えられ（Ｓ３５参照）、第１温度センサー（通常タイプ）２５がＯＮとなる（Ｓ３６参照）。そして、ヒータ１がＯＮとなり（Ｓ３７参照）。ＵＶランプ３ａが点灯して（Ｓ３８参照）、この状態から通常運転状態のフローチャートの▲４▼に戻る。このように、前述の排水部熱水殺菌洗浄モードは、実は通常循環運転モードと同じ関係であり、一定時間経過後には弁制御を行わずに、通常運転モードへの移行ができるものである。また、Ｓ３４において、前記の全水系熱水殺菌洗浄を終了しないとすると、図３の▲３▼を介して図２の▲３▼からＳ１１の手前に戻るものである。
【００１６】
なお、浴水循環装置を通常運転状態のフローチャートは、図４に示すように、浴水循環装置を駆動するか否かを判断し（Ｓ１参照）、浴水循環装置を駆動する場合には、浴水循環装置の電源をＯＮとし（Ｓ２参照）、循環ポンプＰを駆動させ（Ｓ３参照）、ヒータ１をＯＮとし（Ｓ４参照）、さらに紫外線殺菌装置３のＵＶランプ３ａを点灯させて（Ｓ５参照）、第１温度センサー（通常タイプ）２５がＯＮとなり、浴水循環装置を駆動させる。そのとき、熱水管路洗浄をするか否かを判断し（Ｓ７参照）、熱水管路殺菌洗浄させるとすると、図４のフローチャートの▲１▼に進み、そして自動のサブルーチンのフローチャート▲１▼〜▲２▼（図２参照）及びフローチャート▲２▼〜▲４▼（図３参照）となって、再び、図４のフローチャートの▲４▼に戻る。熱水管路殺菌洗浄をしないと判断すると、そのまま駆動させ、浴水循環装置を停止させるか否かを判断し（Ｓ７参照）、停止する場合には終了し、停止しない場合には、浴水循環装置の電源をＯＮするＳ２の手前に戻る。また、Ｓ１において、浴水循環装置を駆動しない場合には終了する。
【００１７】
また、図９（Ａ），（Ｂ）に示すように、基本的な構成であり、循環管路５を太線で、且つ連結管路６及び副連結管路７については比較的細線にて描いた略示関係図であり、図９の（Ａ）は通常運転モードであり、図９の（Ｂ）は熱水管路殺菌洗浄モードを示したものである。他の符号等は第１の実施の形態（図５乃至図８）と同一であり、その説明を省略する。
【００１８】
また、図１０に示すように、前記三方弁Ｖに変えて、連結管路６の流出側寄りの基部箇所の近接位置の循環管路５に２箇所及び連結管路６に１箇所にそれぞれ開閉弁が設けられている。その三方弁Ｖを設けた箇所の前後位置に、開閉弁Ｖ₁，開閉弁Ｖ₂，開閉弁Ｖ₃がそれぞれ設けられている。図１０（Ａ）では、図５又は図８と同一の作用をなすものであり、開閉弁Ｖ₁及び開閉弁Ｖ₂を開放し、且つ開閉弁Ｖ₃を閉鎖したものであり、図５の通常循環と同様に、又は図８と同様に熱水による流出側管路５ｂ及び噴出部９箇所を殺菌洗浄する場合である。また、図１０（Ｂ）では、図６と同一の作用をなすものであり、即ち、開閉弁Ｖ₁及び開閉弁Ｖ₃を開放し、且つ開閉弁Ｖ₂を閉鎖したものであり、閉ループ熱水循環する場合である。さらに、図１０（Ｃ）では、図７と同一の作用をなすものであり、即ち、開閉弁Ｖ₁を閉鎖し、開閉弁Ｖ₂及び開閉弁Ｖ₃を開放したものであり、逆ループ熱水循環させて、汲水側管路５ａ内及びプレフィルタ８箇所を熱水にて殺菌洗浄を行なうものである。以上の３つの開閉弁Ｖ₁，Ｖ₂，Ｖ₃を適宜開放，閉鎖することで、前記三方弁Ｖと同様な作用をなすため、ブロック図及びフローチャートでは省略する。
【００１９】
【発明の効果】
まず、請求項１の発明では、第１に全体の循環管路５を総て熱水殺菌で行なうために、レジオネラ菌のみならず、クリプトスポリジウム菌等に対しても死滅させることができ、極めて安全且つ衛生的である。特に、熱水管路殺菌洗浄した浴水にて循環管路５の吸込み箇所及び流出箇所までも殺菌洗浄できるものである。また、第２に作業者が殺菌剤及びその排水に接触する可能性がないために安全に洗浄作業を行うことができる。第３に毎日殺菌洗浄すれば、循環管路５の「ぬる」の発生が防止できるのみならず、殺菌洗浄した浴水を浴槽１０内に戻しても浴槽１０内の清潔性は充分に確保できる等の効果を奏する。
【００２０】
また、請求項２の発明では、連結管路６，副連結管路７，三方弁Ｖ，第１開閉弁Ｖ１及び第２開閉弁Ｖ２を設けたことで、熱水管路殺菌洗浄した浴水にて循環管路５の吸込み箇所及び流出箇所までも殺菌洗浄が確実にできる利点がある。請求項３の発明では、三方弁Ｖを３つの開閉弁にて制御することで、請求項２と同様な作用をなし、同様に熱水管路殺菌洗浄した浴水にて循環管路５の吸込み箇所及び流出箇所までも殺菌洗浄ができるものである。
【００２１】
請求項４の発明では、一日又は複数日間に所定時間（例えば、深夜午前３時等）において、各弁を制御し、且つ熱水，浴水の温度を制御して、循環管路５の吸込み箇所及び流出箇所までも自動的に殺菌洗浄できる。このように一定期間毎に熱による洗浄、殺菌を行うことにより、浴水循環装置の管路に付着し、雑菌等のすみかとなる「ヌル」を殆ど着かないようにできるし、毎日等において熱水殺菌洗浄を行うため、浴水に殺菌済の殺菌洗浄後の熱水を流入しても浴水は汚れない利点がある。この点、バッチ処理で行うと「ヌル」の固まり等が流出する恐れがあり、浴水が汚れるという問題点を確実に解消したものである。
【図面の簡単な説明】
【図１】弁制御及び温度制御を自動的に行う本発明のブロック図
【図２】本発明の前半のフローチャート
【図３】本発明の後半のフローチャート
【図４】通常運転のフローチャート
【図５】本発明の実施の形態の通常運転の略示図
【図６】本発明の実施の形態の熱水管路殺菌洗浄循環の略示図
【図７】本発明の実施の形態の汲水部熱水殺菌モードの略示図
【図８】本発明の実施の形態の排水部熱水殺菌モードの略示図
【図９】（Ａ）は本発明の別の実施の形態の通常運転の略示図
（Ｂ）は本発明の別の実施の形態の熱水管路殺菌洗浄循環の略示図
【図１０】（Ａ）は本発明の別の実施の形態の通常運転の略示図
（Ｂ）は本発明の別の実施の形態の熱水管路殺菌洗浄循環の要部略示図
（Ｃ）は本発明の別の実施の形態の汲水部熱水殺菌モードの要部略示図
【符号の説明】
１…ヒータ
２…フィルタ
５…循環管路
６…連結管路
７…副連結管路
１０…浴槽
２２…熱水殺菌洗浄指令手段
２３…弁制御手段
Ｐ…循環ポンプ
Ｖ…三方弁
Ｖ１…第１開閉弁
Ｖ２…第２開閉弁
Ｖ₁，Ｖ₂，Ｖ₃…開閉弁[0001]
[Industrial application fields]
The present invention cleans the circulation pipeline with hot water, drains the hot water sterilized and purified in the circulation pipeline at the time of discharge after sterilization and purification from the suction location and the outflow location of the circulation pipeline and the location. The present invention relates to a pipe line sterilization and purification apparatus in a bath water circulation apparatus in which hot water cleaning is performed to clean the entire pipe line with hot water.
[0002]
[Prior art]
In the conventional bath water circulation apparatus, a microbial film may adhere to the apparatus main body and the piping due to long-term use, and it is necessary to sterilize and clean the apparatus every certain period due to safety and health problems. Moreover, the method was to sterilize and wash the sterilizing agent by directly putting the sterilizing agent into the hot water in the bathtub instead of piping outside the bathtub.
[0003]
[Problems to be solved by the invention]
Thus, in order to put the bactericide into the hot water of the bathtub, a large amount of chemicals must be used, which is uneconomical and the bathtub must be washed after using the chemicals. For this reason, the applicant has developed a device that sterilizes and cleans only the inside of the circulation pipe with hot water. In this apparatus, the main part of the circulation pipe was circulated with hot water, and this hot water was discharged outside the bathtub. That is, safety is ensured by flowing hot water to the outside so that the hot water does not hit the bather at the bathtub.
In this method, hot water is circulated and discharged in the main part of the circulation pipe, but there is a demand for a configuration that can also clean the entire circulation pipe with hot water. That is, it has been desired to periodically perform hot water sterilization cleaning on the entire circulation pipe.
[0004]
[Means for Solving the Problems]
Therefore, the inventor has intensively studied to solve the above problems, and as a result, the present invention has a heater capable of heating the bath water from a low temperature to a high temperature, a circulation pump for circulating the bath water, One end of the circulation pump is connected to a circulation pipe that returns the bath water from the bathtub to the bathtub through the circulation pump and the heater, and a pipe on the suction side of the circulation pipe from the bathtub. A connecting pipe connecting the other end to a pipe on the outflow side to the bathtub of the circulation pipe and a connecting pipe connecting a pipe on the outflow side to the bathtub of the circulation pipe One end is connected to a discharge side pipe of the circulation pump in the circulation pipe, and the other end is connected to a suction side pipe of the circulation pipe to a suction side pipe from a coupling point of the connection pipe It consists of sub-connecting pipes to be connected, and at the time of pipe sterilization cleaning, the connecting pipe and the sub-connecting pipe The bath water in the circulation pipe can be circulated while being heated at a high temperature by the heater, and when draining after the pipe sterilization washing, the hot water sterilized and purified in the circulation pipe is discharged from the pipe on the outflow side, Water is drained from the suction-side pipe line via the connection pipe and the sub-connection pipe, and is further drained from the outflow-side pipe line via the suction-side pipe and the circulation pipe. Hot water sterilized and purified in the circulation line when discharged after the sterilization and purification by sterilizing and cleaning the circulation pipeline with hot water. Is drained from the suction location and the outflow location of the circulation pipe, and the location is cleaned with hot water sterilization so that the entire pipeline can be cleaned with hot water sterilization, thereby solving the above-mentioned problems.
[0005]
Embodiment
First, the first embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 5 and 8, the bath water circulation device mainly includes a ceramic heater or the like for heating bath water from a low temperature to a high temperature. A heater 1, a filter 2 for filtering fine dust and impurities from the bath water, an ultraviolet sterilizer 3 for sterilizing the bath water, a circulation pump P for circulating the bath water, and a bath by the circulation pump P It is comprised from the circulation pipe line 5 etc. which circulate so that water may return from the bathtub 10 to the bathtub 10.
[0006]
The filter 2 is, as a type, a precision filter or a normal filter, and is used as an adsorbent filter material filter material filled with activated stone or activated carbon, or is made of a woven or non-woven fabric and made of a filter material. There is also. In any case, dust and dirt that are fine due to impurities are removed.
[0007]
The connecting line 6 connects the appropriate part near the suction side of the circulation line 5 and the appropriate part near the outflow side of the circulation line 5, so that the outflow side line 5 b of the circulation line 5 is connected. A closed loop is formed by the circulation line 5 and the connection line 6 in which the circulation pump P, the heater 1, the filter 2, and the ultraviolet sterilizer 3 are arranged. The circulation pump P is not limited to the order of the heater 1, the filter 2, and the ultraviolet sterilizer 3, and an appropriate one is provided. Further, in the circulation pipe 5, the suction side is referred to as the scooping-side pipe 5 a and the outflow side is referred to as the outflow-side pipe 5 b from the connecting portion with the both ends of the connecting pipe 6. The circulation pump P, the heater 1, the filter 2, and the ultraviolet sterilizer 3 are not provided on the pumping water side pipe line 5a and the outflow side pipe line 5b. A pre-filter 8 is provided at the suction port of the water drawing side pipe 5a, and a jetting part 9 is provided at the outlet of the outflow side pipe 5b so that a jet jet flows. Further, it is preferable that the connecting pipe 6 is provided as close to the prefilter 8 and the ejection portion 9 as possible.
[0008]
The sub-connecting line 7 has an appropriate position closer to the center side than the connecting part of the connecting line 6 on the outflow side of the circulation line 5, and the connecting line 6 on the suction side of the circulation line 5. It is provided between an appropriate position closer to the suction side than the coupling portion. The three-way valve V is provided at the base portion on the outflow side of the connecting pipe 6. In other words, it is provided at a joint location between the circulation pipe 5 and the connection pipe 6. The first on-off valve V <b> 1 is provided at an appropriate position on the suction side of the circulation line 5 and between the connecting part of the connecting pipe 6 and the connecting part of the sub-connecting pipe 7. Further, the second on-off valve V <b> 2 is provided at an appropriate position of the sub-connecting pipeline 7. Specifically, the second on-off valve V <b> 2 is provided near the outflow side of the circulation line 5 in the sub-connecting line 7. Moreover, since there exists a possibility that a hot water may stagnate, it is suitable for the said sub-connection pipeline 7 to make it as short as possible.
[0009]
When the hot water pipe cleaning is performed, the three-way valve V is switched so as to flow from the port (4) to the port (2), and the first on-off valve V1 and the second on-off valve V2 are each switched to open. As a result, as shown in FIG. 6, in the circulation line 5, the circulation line 5 in which the circulation pump P, the heater 1, the filter 2, and the ultraviolet sterilizer 3 are disposed while the bath water is heated to a high temperature by the heater 1. And the connecting pipe 6, the sub-connecting pipe 7 provided in parallel with the closed loop 7, the pumping-side pipe 5 a, and a part of the closed loop constitute a second closed loop. Water is circulated by the operation of the circulation pump P. And after setting it as the hot water of predetermined | prescribed temperature, hot water pipe line washing | cleaning is performed for predetermined | prescribed time. In the subsequent hot water discharge mode, the flow is switched from the port (3) of the three-way valve V to the port (2), the first on-off valve V1 is closed, and the second on-off valve V2 is kept open. To do. As a result, as shown in FIG. 7, the outflow side pipe 5b and the connecting pipe 6 are circulated in the reverse direction so that hot water flows out from the pumping side pipe 5a into the bathtub 10 and the pumping side pipe. The inside of the channel 5a and the eight prefilter locations are sterilized and washed with hot water. This is completed in a predetermined time, and this time, valve control is performed so as to be similar to the normal circulation. That is, as shown in FIG. 8, the three-way valve V is switched so as to flow from the port (4) to the port (3), the first on-off valve V1 is opened, and the second on-off valve V2 is closed. As a result, the hot water still remaining in the closed loop returns to the bathtub 10 while sterilizing and washing the outflow side pipe line 5b and the nine ejection portions. With such hot water circulation, all the portions of the circulation line 5 can be sterilized and washed. That is, all water system sterilization washing can be performed.
[0010]
In the present invention, all operations including valve control are performed automatically. This configuration is configured in a block diagram as shown in FIG. That is, a central processing unit 21 (CPU) is provided, and hot water sterilization washing command means 22 for controlling the start / end of hot water pipe sterilization washing, the three-way valve V, the first on-off valve V1, and the second on-off opening / closing. Valve control means 23 for controlling switching of the valve V2, temperature sensor switching means 24 for switching control of the first temperature sensor 25 and the second temperature sensor 26, lamp control means 27, and heater control means 28 are provided. Yes. The hot water sterilization cleaning command means 22 includes a time setting unit for setting a cleaning start time for hot water cleaning in the circulation line, a time storage unit for storing the set cleaning start time and the cleaning time, A time changing unit for changing the cleaning start time and the cleaning time as appropriate; The central processing unit 21, the hot water sterilization washing command means 22, the valve control means 23, the temperature sensor switching means 24, the lamp control means 27, the heater control means 28, etc. are collectively referred to as a control unit A.
[0011]
The first temperature sensor 25 detects a desired hot water temperature (for example, 42 ° C., etc.) as bath water, and the second temperature sensor 26 is 65 ° C. to 70 ° C. or higher during hot water line cleaning. Is to detect. These two temperature sensors are switched by the temperature sensor switching means 24 in the normal operation mode and the hot water sterilization cleaning mode. The lamp control means 27 controls the ON / OFF of the UV lamp 3a. Further, the heater control means 28 controls the ON / OFF of the heater 1.
[0012]
2 and 3 are flowcharts of the hot water temperature control in the circulation pipe and control of switching commands of the three-way valve V, the first on-off valve V1, the second on-off valve V2, and the like. From the state of (1) in the flowchart, after a predetermined set time, it becomes the all-water-based hot water sterilization washing mode (see S11), switched by the temperature sensor switching means 24 (see S12), and the second temperature sensor (hot water). Type) 26 is turned ON (see S13). At this time, the heater 1 is kept on. Then, the UV lamp 3a of the ultraviolet sterilizer 3 is turned off (see S14). Then, the three-way valve V is switched from the port (4) to the port (2) by the valve control means 23 so as to change to the circulation in the pipeline (see S15), and the second on-off valve V2 is opened. Then (see S16), the first on-off valve V1 keeps its open state. Then, the bath water temperature is set based on a predetermined time considering the temperature rise from the time when the hot water sterilization cleaning mode is performed until the hot water sterilization cleaning command means 22 operates and starts the hot water pipe sterilization cleaning. Measure (see S17), and automatically detect whether or not the temperature in the circulation line 5 is a predetermined temperature (for example, 70 ° C.) via the second temperature sensor 26 (see S18) and exceed the predetermined temperature If not, the ON state of the heater 1 is maintained.
[0013]
Further, when the bath water in the pipe reaches a predetermined temperature (for example, 70 ° C.), the heater 1 is turned off (see S19). In this state, the bath water in the closed loop pipe is circulated by the pump pressure of the circulation pump P, and the hot water line sterilization cleaning operation is started. This state is as shown in FIG. At this time, although there is no valve near the pre-filter 8 of the pumping-side pipe line 5a, the heads of the six connecting pipe lines and the seven sub-connecting pipe lines of the three-way valve V are above the ten bathtub parts. Since hot water in the hot water pipe does not flow out to the outside, there is no inflow of bath water from the pumping water side pipe 5a or the prefilter 8. And from the time of the said hot water pipe line sterilization washing | cleaning operation start, the hot water sterilization washing | cleaning instruction | command means 22 operate | moves and measures the predetermined time (about 5 minutes at 70 degreeC) which carries out hot water pipe line washing | cleaning (refer S20). It is determined whether or not a predetermined time has elapsed (see S21). If the predetermined time has not elapsed, the process returns to the previous step of S18. If the predetermined time has elapsed, the hot water conduit sterilization cleaning operation is terminated, This time, the suction / exhaust unit hot water sterilization mode is set (see S22).
[0014]
First, the hot water sterilization mode is set (see S23). Then, the three-way valve V is switched from the port (3) to the port (2) by the valve control means 23 so as to change in the direction of the pumping section (see S24), and the first on-off valve V1 is closed. (See S25). At this time, the second on-off valve V2 is kept open. As a result, the outflow side pipe 5b and the connection pipe 6 are circulated in the reverse direction, and hot water flows out from the pumping side pipe 5a into the bathtub 10, and the inside of the pumping side pipe 5a and the eight prefilters. Sterilize and clean with hot water. For this hot water sterilization, the hot water sterilization washing command means 22 measures a predetermined time for the hot water sterilization (see S26) and determines whether or not this predetermined time has passed (see S27). ).
[0015]
After this, the process shifts to (2) and starts from (2) in the flowchart of FIG. If the predetermined time does not elapse, the process returns to the position before S26, and if the predetermined time elapses, the discharge portion hot water sterilization mode is set (see S28). Then, the three-way valve V is switched by the valve control means 23 from the port (4) to the port (3) and changed to the discharge side (see S29), and the first on-off valve V1 is opened ( The second opening / closing valve V2 is closed (see S31). As a result, the circulation line 5 becomes a forward circulation and sucks the bath water from the prefilter 8 side, and hot water flows out from the ejection part 9 into the bathtub 10 from the outflow side line 5b side, and the outflow side line 5b. The discharge part is subjected to hot water sterilization and washing with hot water at the inside and the nine jet parts. About this discharge part hot water sterilization washing, the hot water sterilization washing command means 22 measures the predetermined time of discharge part hot water sterilization (refer to S32), and judges whether this predetermined time has passed (refer to S33). When the predetermined time has not elapsed, the process returns to the step before S32, and when the predetermined time has elapsed, the discharge portion hot water sterilization mode is ended, and then the all-water system hot water sterilization cleaning is ended. When the process is completed, the temperature sensor is switched by the temperature sensor switching means 24 (see S35), and the first temperature sensor (normal type) 25 is turned on (S36). reference). Then, the heater 1 is turned on (see S37). The UV lamp 3a is turned on (see S38), and the state returns to (4) in the flowchart of the normal operation state from this state. Thus, the above-described drainage section hot water sterilization cleaning mode is actually the same relationship as the normal circulation operation mode, and can shift to the normal operation mode without performing valve control after a certain period of time. Also, in S34, if the above-mentioned all-water hot water sterilization cleaning is not completed, the process returns from (3) of FIG. 2 to the front of S11 via (3) of FIG.
[0016]
In the flowchart of the normal operation state of the bath water circulator, as shown in FIG. 4, it is determined whether or not the bath water circulator is driven (see S1). Is turned on (see S2), the circulation pump P is driven (see S3), the heater 1 is turned on (see S4), and the UV lamp 3a of the ultraviolet sterilizer 3 is turned on (see S5). 1 Temperature sensor (normal type) 25 is turned ON, and the bath water circulation device is driven. At that time, it is determined whether or not hot water pipe cleaning is performed (see S7), and if hot water pipe sterilization cleaning is performed, the process proceeds to (1) in the flowchart of FIG. Returning to (2) (see FIG. 2) and flowcharts (2) to (4) (see FIG. 3), the process returns to (4) in the flowchart of FIG. If it is determined that the hot water pipe sterilization cleaning is not performed, it is driven as it is, and it is determined whether or not to stop the bath water circulation device (see S7). Return to just before S2 when the power is turned on. If the bath water circulation device is not driven in S1, the process ends.
[0017]
Further, as shown in FIGS. 9A and 9B, the basic configuration is such that the circulation pipeline 5 is drawn with a thick line, and the connection pipeline 6 and the sub-connection pipeline 7 are drawn with relatively thin lines. FIG. 9A shows a normal operation mode, and FIG. 9B shows a hot water line sterilization washing mode. Other reference numerals and the like are the same as those in the first embodiment (FIGS. 5 to 8), and description thereof is omitted.
[0018]
In addition, as shown in FIG. 10, instead of the three-way valve V, the circuit is opened and closed in two places in the circulation line 5 near the base part near the outflow side of the connection pipe 6 and in one place in the connection pipe 6. A valve is provided. At the front and rear positions where the three-way valve V is provided, an on-off valve V ₁ , an on-off valve V ₂ , and an on-off valve V ₃ are provided. In FIG. 10A, the same action as in FIG. 5 or FIG. 8 is performed, the on-off valve V ₁ and the on-off valve V ₂ are opened, and the on-off valve V ₃ is closed. It is a case where the outflow side pipe line 5b and the nine jetting parts by hot water are sterilized and washed in the same manner as in normal circulation or in the same manner as in FIG. In FIG. 10B, the same action as in FIG. 6 is performed, that is, the on-off valve V ₁ and the on-off valve V ₃ are opened and the on-off valve V ₂ is closed, and the closed loop heat is generated. This is a case of water circulation. Further, in FIG. 10C, the same action as in FIG. 7 is performed, that is, the on-off valve V ₁ is closed and the on-off valve V ₂ and the on-off valve V ₃ are opened. The water is circulated to sterilize and clean the inside of the pumped water side pipe 5a and the eight prefilters with hot water. Since the above three on-off valves V ₁ , V ₂ , V ₃ are opened and closed as appropriate to achieve the same operation as the three-way valve V, they are omitted in the block diagram and flowchart.
[0019]
【The invention's effect】
First, in the first aspect of the invention, since the entire circulation line 5 is first performed by hot water sterilization, not only Legionella but also Cryptosporidium can be killed. Safe and hygienic. In particular, it is possible to sterilize and clean up the suction points and outflow points of the circulation line 5 with bath water that has been sterilized and washed with hot water lines. Second, since there is no possibility that the worker will come into contact with the bactericide and its drainage, the cleaning operation can be performed safely. Thirdly, if sterilization washing is performed every day, not only the occurrence of “slipping” of the circulation line 5 can be prevented, but also the cleanliness in the bathtub 10 can be sufficiently secured even if the sterilized and washed bath water is returned to the bathtub 10. There are effects such as.
[0020]
Further, in the invention of claim 2, the connecting pipe 6, the sub-connecting pipe 7, the three-way valve V, the first on-off valve V1, and the second on-off valve V2 are provided, so that the hot water pipe is sterilized and washed. Thus, there is an advantage that sterilization and cleaning can be reliably performed even at the suction point and the outflow point of the circulation pipe 5. In the invention of claim 3, by controlling the three-way valve V with three on-off valves, the same action as in claim 2 is achieved, and the suction of the circulation line 5 with bath water that has been similarly sterilized and washed with hot water pipes It is possible to sterilize and clean up places and outflow places.
[0021]
In the invention of claim 4, each valve is controlled and the temperature of hot water and bath water is controlled at a predetermined time (for example, 3:00 am at midnight) in one day or a plurality of days, and It can also automatically sterilize and clean up the suction and outflow points. By performing washing and sterilization by heat at regular intervals in this way, it can be attached to the pipeline of the bath water circulation device, and can hardly be attached to “null” that becomes a habit of germs, etc. Since sterilization cleaning is performed, there is an advantage that the bath water does not become dirty even if sterilized hot water after sterilization is flowed into the bath water. In this regard, when the batch processing is performed, a mass of “null” or the like may flow out, and the problem that the bath water is contaminated is surely solved.
[Brief description of the drawings]
1 is a block diagram of the present invention that automatically performs valve control and temperature control. FIG. 2 is a flowchart of the first half of the present invention. FIG. 3 is a flowchart of the second half of the present invention. Schematic diagram of normal operation of the embodiment of the present invention FIG. 6 Schematic diagram of hot water line sterilization washing circulation of the embodiment of the present invention FIG. 7 Fume water heat of the embodiment of the present invention Schematic diagram of water sterilization mode [FIG. 8] Schematic diagram of drainage section hot water sterilization mode of the embodiment of the present invention [FIG. 9] (A) is a schematic diagram of normal operation of another embodiment of the present invention FIG. 10 (B) is a schematic diagram of hot water line sterilization washing circulation according to another embodiment of the present invention. FIG. 10 (A) is a schematic diagram of normal operation according to another embodiment of the present invention (B). Is a schematic diagram (C) of the main part of the hot water line sterilization cleaning circulation of another embodiment of the present invention is a drawing of the hot water sterilization mode of the water pumping section of another embodiment of the present invention. Part shown 示図 DESCRIPTION OF SYMBOLS
DESCRIPTION OF SYMBOLS 1 ... Heater 2 ... Filter 5 ... Circulation line 6 ... Connection line 7 ... Sub-connection line 10 ... Bathtub 22 ... Hot-water sterilization washing command means 23 ... Valve control means P ... Circulation pump V ... Three-way valve V1 ... 1st close valve V2 ... second on-off valve _{_{_{V 1, V 2, V 3}}} ... off valve

Claims

A heater capable of heating the bath water from a low temperature to a high temperature, a circulation pump for circulating the bath water, and the bath so that the bath water returns from the bathtub to the bathtub again via the circulation pump and the heater. And a connecting pipe that connects one end to the pipe on the suction side from the bathtub of the circulation pipe and connects the other end to a pipe on the outflow side to the bathtub of the circulation pipe. One end is connected to the discharge side pipe of the circulation pump in the circulation line from the connecting part of the connection line connected to the pipe on the outflow side to the bathtub of the circulation line, and the other end is circulated. A sub-connecting pipe connected to the suction-side pipe from a connecting portion of the connecting pipe connected to the pipe on the suction side of the pipe, and at the time of pipe sterilization cleaning, the connection pipe and the sub-connecting pipe recyclable and then while in a high temperature bath water circulating pipe line at the heater through a conduit sterilization During drainage Kiyoshigo, drained sterile clarified hot water in the circulation conduit pipe of the outlet side, the connection pipe from the secondary connection pipe the suction side of the conduit via further the The apparatus for sterilizing and purifying a pipe in a bath water circulating apparatus is characterized by draining from the pipe on the suction side and the pipe on the outflow side through the circulation pipe .

A heater capable of heating the bath water from a low temperature to a high temperature, a circulation pump for circulating the bath water, and the bath so that the bath water returns from the bathtub to the bathtub again via the circulation pump and the heater. A circulating pipe, a three-way valve disposed in the pipe on the outflow side of the circulation pipe to the bathtub, one end connected to the three-way valve, and the other end of the circulation pipe on the suction side from the bathtub From the connecting point of the connecting line connected to the pipe line and the connecting line connected to the outlet side pipe line of the circulation line to the discharge side line of the circulation pump in the circulation line A sub-connecting line connected to a pipe line closer to the suction side from a coupling point of the connecting pipe line, one end connected and the other end connected to a suction-side pipe line of the circulation pipe, and the suction of the circulation pipe between the coupling portion of the the coupling portion of the connection pipe which is connected to the conduit of the collateral coupling conduit A first on-off valve provided in the road, the consists of a second on-off valve provided on the secondary connection pipe, when the pipe sterilizing and washing, the circulation conduit via the connection pipe and the sub-coupling conduit and the bath water can be circulated while in a high temperature by the heater, when waste water after the conduit sterilizing and washing, the closing the first on-off valve sterile clarified hot water in the circulation conduit with switching the three-way valve 2. Open the on-off valve and drain the bath water pumped up through the outflow side pipe from the suction side pipe through the connecting pipe and the sub connecting pipe, and further switch the three-way valve. At the same time, the first on-off valve is opened, the second on-off valve is closed, and hot water is drained from the outflow side pipe through the circulation pipe by the bath water pumped up through the suction side pipe. A pipeline sterilization and purification device in a bath water circulation device, characterized in that it is configured as described above.

A heater capable of heating the bath water from a low temperature to a high temperature, a circulation pump for circulating the bath water, and the bath water returned from the bathtub to the bathtub via the circulation pump and the heater . a circulation pipe, a connecting pipe which is connected at one end to the suction side of the conduit from the bath of the circulation pipe, connecting the other end to the conduit on the outflow side to the tub of the circulation pipe, One end is connected to the discharge side pipe of the circulation pump in the circulation pipe from the connecting portion of the connection pipe connected to the pipe on the outflow side to the bathtub of the circulation pipe, and the other end is connected to the circulation pipe. A sub-connecting pipe connected to a pipe closer to the suction side from a connecting portion of the connecting pipe connected to a pipe on the suction side of the path, and the connection pipe connected to a pipe on the outflow side of the circulation pipe On-off valve V provided in the pipe line between the joint part of the secondary connection pipe connected to the outlet side pipe line and the joint part of the outflow side ₁ ; an on-off valve V ₂ provided on a bathtub-side pipe from a connecting portion of the connecting pipe connected to an outflow side pipe of the circulation pipe; an on-off valve V ₃ provided on the connecting pipe ; a first on-off valve provided in the line between the coupling point of the circulation pipe coupling portion of the suction side said connection pipe which is connected to the conduit between the secondary connection pipe of the secondary connection pipe In the sterilization cleaning of the pipeline, the bath water in the circulation pipeline can be circulated while being heated by the heater through the connection pipeline and the sub-connection pipeline. during wastewater after washing, via line of the outflow side to release the rest of the on-off valve with sterile clarified hot water in the circulation duct to close the on-off valve V ₁ and the first on-off valve The pumped-up bath water drains from the suction-side pipe line through the connection pipe and the sub-connection pipe, and further the on-off valve V ₃ And the second on-off valve is closed and the remaining on-off valve is opened, and hot water is drained from the outflow side pipe through the circulation pipe by the bath water pumped up through the suction side pipe. A conduit sterilization and purification device in a bath water circulation device, characterized in that

4. The hot water sterilization washing command means for starting / controlling the sterilization washing time, the valve control means for controlling the pipe washing, drainage, and the like, and the temperature of the hot water and bath water are controlled. The hot water sterilization cleaning command means includes a time setting unit for setting a cleaning start time, and a time storage unit for storing the set cleaning start time and the cleaning time. Pipe sterilization purification device in the bath water circulation device.