JP4024948B2

JP4024948B2 - Bath remaining hot water use system

Info

Publication number: JP4024948B2
Application number: JP28338298A
Authority: JP
Inventors: 真佐野
Original assignee: 株式会社ハーマンプロ
Priority date: 1998-09-18
Filing date: 1998-09-18
Publication date: 2007-12-19
Anticipated expiration: 2018-09-18
Also published as: JP2000096656A

Description

【０００１】
【発明の属する技術分野】
本発明は、浴槽残り湯を有効に利用するシステムに関し、詳しくは、浴槽残り湯を水洗トイレの水洗及び洗濯に有効に利用することが可能な浴槽残り湯利用システムに関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
従来、浴槽残り湯を有効に利用するために、浴槽の湯を洗濯に利用するようにしたシステムが提案されており、このシステムによれば、浴槽残り湯を有効に利用することが可能になる。
【０００３】
しかし、浴槽残り湯を洗濯に使用するようにした場合、通常、すすぎ水としては、水道水が使用されるため、浴槽残り湯の用途は、主として洗濯時の使用に限られることになり、１日に３０リットル程度しか利用されず、浴槽残り湯の利用効率が十分ではないという問題点がある。
【０００４】
本発明は、上記問題点を解決するものであり、浴槽残り湯を従来のシステムよりさらに効率よく利用することが可能な浴槽残り湯利用システムを提供することを目的とする。
【０００５】
【課題を解決するための手段】
上記目的を達成するため、本発明（請求項１）の浴槽残り湯利用システムは、
給湯器と、
給湯器から供給される湯の通路となる給湯器側給湯路と、
給湯器側給湯路から分岐した、風呂に給湯するための風呂給湯路、及び、水洗トイレと洗濯機に給水するためのトイレ・洗濯機給湯路と、
浴槽の湯を給湯器に循環するための給湯器循環路と、
給湯器側給湯路、風呂給湯路、及び給湯器循環路を含んでなる循環路に湯を循環させる循環ポンプと、
トイレ・洗濯機給湯路に配設され、水洗トイレ及び洗濯機に供給されるべき浴槽残り湯が貯められる貯水タンクと、
トイレ・洗濯機給湯路の、貯水タンクより下流側に配設され、貯水タンクから水洗トイレ及び洗濯機への給水を行う給水ポンプと、
給湯器側給湯路、風呂給湯路及びトイレ・洗濯機給湯路の連通状態を、
(ａ)給湯器側給湯路と風呂給湯路が連通した状態、
(ｂ)給湯器側給湯路とトイレ・洗濯機給湯路が連通した状態
のいずれかの状態になるように切り替える切替手段と
を備え、
風呂給湯を行う場合には、切替手段により給湯器側給湯路と風呂給湯路を連通させ、前記循環ポンプを作動させて給湯器から風呂への給湯を行い、
貯水タンクに浴槽残り湯を貯める場合には、切替手段により給湯器側給湯路とトイレ・洗濯機給湯路とを連通させ、前記循環ポンプを作動させて、浴槽残り湯を貯水タンクに流入させ、
水洗トイレ及び洗濯機に給水する場合には、切替手段により給湯器側給湯路とトイレ・洗濯機給湯路を連通させ、トイレ・洗濯機給湯路の貯水タンクより下流側に配設された前記給水ポンプを作動させて、貯水タンクから水洗トイレ及び洗濯機に給水するように構成されており、かつ、
前記貯水タンクからトイレタンクに給水することにより水洗トイレへの給水が行われるとともに、トイレタンクにはボールタップを経て水道水をトイレタンクに供給するための水道水供給路が配設されており、
貯水タンクからトイレタンクに給水しておいた水を流すことにより、トイレ使用後の便器の水洗が行われるとともに、
トイレタンクの水が使用された後、前記水道水供給路からボールタップを経て水道水がトイレタンクに供給されることにより、水道水による手洗いと便器のリンスが行われるように構成されていること
を特徴としている。
【０００６】
本発明の浴槽残り湯利用システムは、トイレ・洗濯機給湯路に、トイレ及び洗濯機に供給されるべき浴槽残り湯を貯めるための貯水タンクを配設するとともに、給湯器側給湯路、風呂給湯路及びトイレ・洗濯機給湯路の連通状態を切り替える切替手段を設け、この切替手段により給湯路（給水路）の切り換えを行って、貯水タンクに貯められた浴槽残り湯を、トイレ及び洗濯機に分配、供給するようにしているので、浴槽残り湯を効率よくトイレ及び洗濯機の両方に使用して、浴槽残り湯の有効利用を図ることが可能になる。
【０００７】
また、トイレタンクから水を流すことにより、トイレ使用後の便器の水洗を行った後に、水道水供給路からボールタップを経て水道水がトイレタンクに供給されるようにしているので、水道水による手洗いと便器の水道水によるリンスを行うことが可能になり、清潔性を損なうことなく、浴槽残り湯の有効利用を図ることが可能になる。
なお、給水ポンプを作動させて、貯水タンクからトイレ及び洗濯機に給水する場合において、トイレへの給水路と洗濯機への給水路を切り替える方法としては、公知の種々の切替方法を適用することが可能である。
【０００８】
また、請求項２の浴槽残り湯利用システムは、前記切替手段として、三方弁を給湯器側給湯路から風呂給湯路及びトイレ・洗濯機給湯路が分岐する位置に配設して用いていることを特徴としている。
【０００９】
給湯器側給湯路、風呂給湯路及びトイレ・洗濯機給湯路の連通状態を切り替える手段としては、種々の手段を用いることができるが、三方弁を切替手段として用い、給湯器側給湯路から風呂給湯路及びトイレ・洗濯機給湯路が分岐する位置に三方弁を配設することにより、部品数の増大を招いたりすることなく、確実に給湯器側給湯路、風呂給湯路及びトイレ・洗濯機給湯路の連通状態を切り替えることが可能になり、本発明をより実効あらしめることができる。
【００１０】
また、請求項３の浴槽残り湯利用システムは、
貯水タンクに、所定の高水位・Ｈ点及び低水位・Ｌ点を検出する水位センサが配設されているとともに、水道水を供給するための水道水供給路が配設されており、
貯水タンクに浴槽残り湯を供給する際に、給湯器側給湯路とトイレ・洗濯機給湯路とが連通するように切替手段を切り替え、前記循環ポンプを作動させることにより、給湯器循環路、給湯器側給湯路、トイレ・洗濯機給湯路を経て、浴槽残り湯が貯水タンクに供給され、
水位センサにより貯水タンクの水位がＨ点に達していることが検出された場合には、循環ポンプが停止されて貯水タンクへの浴槽残り湯の供給が終了し、
浴槽残り湯をすべて貯水タンクに供給しても貯水タンクの水位がＬ点に達しない場合には、水位がＬ点に達するまで貯水タンクに水道水供給路から水道水が供給されるように構成されていること
を特徴としている。
【００１１】
貯水タンクに水位センサを配設するとともに、水道水を供給するための水道水供給路を配設し、貯水タンクの水位がＨ点に達すると貯水タンクへの浴槽残り湯の供給を終了し、浴槽残り湯を貯水タンクに供給しても貯水タンクの水位がＬ点に達しないときには、水位がＬ点に達するまで貯水タンクに水道水を供給するようにした場合、浴槽残り湯を効率よく利用することが可能になるとともに、浴槽に残った湯が少なくて、それを貯水タンクに貯めただけではトイレ洗浄や洗濯に必要な水をまかないきれない場合にも、トイレ洗浄や洗濯に支障をきたすことがなくなり、信頼性を向上させることが可能になる。
【００１２】
また、請求項４の浴槽残り湯利用システムは、
トイレタンクに、所定の高水位・Ｈ点及び低水位・Ｌ点を検出する水位センサが配設されており、
トイレ使用後にトイレタンクから水を流して便器の水洗を行った時点で、トイレタンクの水位がＨ点より低くＬ点より高い位置にあって水位センサのＨ点がＯＦＦ、Ｌ点がＯＮとなった場合には、トイレを小便に使用したと判定し、水位がＬ点より低くなって水位センサのＨ点及びＬ点がいずれもＯＦＦとなった場合には、トイレを大便に使用したと判定し、
トイレタンクの水が使用された後に、給水ポンプを作動させて貯水タンクから浴槽残り湯をトイレタンクに供給するタイミングを、前記大・小便の判定結果に応じて所定の時間だけ遅らせるとともに、遅らせた所定の時間である遅延時間が経過する間、水道水供給路からボールタップを経て水道水をトイレタンクに供給して、水道水による手洗い及び便器のリンスを行い、
前記遅延時間の経過後に、前記給水ポンプを作動させて貯水タンクからトイレタンクに浴槽残り湯を供給するように構成されていること
を特徴としている。
【００１３】
トイレタンクに、トイレタンクの水位を検出する水位センサを配設し、トイレ使用後にトイレタンクから水を流して便器の水洗を行った時点でのトイレタンクの水位から、大・小便の判定を行い、給水ポンプを作動させて貯水タンクから浴槽残り湯をトイレタンクに供給するタイミングを、その判定結果に応じて所定の時間だけ遅らせるとともに、その間に水道水供給路からボールタップを経て水道水をトイレタンクに供給することにより、使用状態に応じて、水道水による手洗い及び便器のリンスを行うことが可能になり、本発明をさらに実効あらしめることができる。
【００１４】
また、請求項５の浴槽残り湯利用システムは、貯水タンクに給水する場合において、所定回数に１回の割合で、浴槽残り湯を貯水タンクに供給せずに水道水を貯水タンクに供給し、貯水タンク、トイレタンク及び便器が水道水により洗浄されるように構成されていることを特徴としている。
【００１５】
貯水タンクに浴槽残り湯を供給する場合に、所定回数に１回の割合で、浴槽残り湯を貯水タンクに供給せず、水道水を貯水タンクに供給することにより、貯水タンク、トイレタンク及び便器を、所定のピッチで塩素を含む殺菌性のある水道水で洗浄することが可能になり、貯水タンク、トイレタンクなどを清潔に保つことが可能になる。
【００１６】
【発明の実施の形態】
以下、本発明の実施形態を示してその特徴とするところをさらに詳しく説明する。
【００１７】
図１は、本発明の一実施形態にかかる浴槽残り湯利用システムの構成を示す図である。この浴槽残り湯利用システムは、風呂給湯用の給湯器１と、給湯器１から供給される湯の通路となる給湯器側給湯路２と、給湯器側給湯路２から分岐した、風呂（浴槽）１０に給湯するための風呂給湯路３及び水洗トイレ２０及び洗濯機３０に給湯（給水）するためのトイレ・洗濯機給湯路４と、浴槽１０の湯を給湯器１に循環するための給湯器循環路５と、給湯器側給湯路２、風呂給湯路３、及び給湯器循環路５からなる循環路に湯を循環させるために、給湯器１内の給湯器循環路５に配設された循環ポンプ６及び水流スイッチ７と、トイレ・洗濯機給湯路４の途中に配設され、水洗トイレ２０及び洗濯機３０に供給されるべき浴槽残り湯が貯められる貯水タンク４０と、トイレ・洗濯機給湯路４の、貯水タンク４０より下流側に配設され、水洗トイレ２０及び洗濯機３０への給水を行う給水ポンプ８及び水流スイッチ９と、給湯器側給湯路２が風呂給湯路３とトイレ・洗濯機給湯路４に分岐する位置に配設され、給湯器側給湯路２、風呂給湯路３及びトイレ・洗濯機給湯路４の連通状態を、給湯器側給湯路２と風呂給湯路３が連通した状態、給湯器側給湯路２とトイレ・洗濯機給湯路４が連通した状態のいずれかの状態になるように切り替える三方弁（切替手段）１９とを備えている。
なお、この実施形態では、上記循環ポンプ６により、給湯器側給湯路２、風呂給湯路３、及び給湯器循環路５からなる循環路に湯を循環させることができるように構成されており、循環される湯を給湯器１で加熱して、浴槽１０に供給することにより、追焚を行ったり、浴槽１０内の湯を所定の温度に維持したりすることができる。
【００１８】
また、この実施形態では、風呂アダプタ１０ａを浴槽１０の側面に配設しているが、風呂アダプタ１０ａを浴槽１０の底部に配設することにより、浴槽１０の残り湯をさらに効率よく利用できるように構成することも可能である。
【００１９】
また、貯水タンク４０には、所定の高水位（Ｈ点）及び低水位（Ｌ点）を検出する水位センサ１１が配設されているとともに、水道水を供給するための水道水供給路１２が配設されている。また、貯水タンク４０には、オーバーフロー配管１３が取り付けられており、オーバーフロー配管１３は、便器１８に洗浄用の水を供給するためのトイレタンク１４に接続されている。
【００２０】
さらに、トイレ・洗濯機給湯路４は、トイレタンク１４に接続されたトイレ給水路４ａと、洗濯機３０に接続された洗濯機給水路４ｂに分岐している。なお、トイレ給水路４ａは、途中でオーバーフロー配管１３と合流してトイレタンク１４に接続されている。また、貯水タンク４０に水道水を供給するための水道水供給路１２からはトイレタンク１４に水道水を供給するためのトイレ用水道水供給路１５が分岐しており、このトイレ用水道水供給路１５は、トイレタンク１４のボールタップ１６に接続されている。
【００２１】
また、トイレタンク１４には、所定の高水位（Ｈ点）及び低水位（Ｌ点）を検出する水位センサ１７が配設されている。
【００２２】
そして、貯水タンク４０に水道水を供給するための水道水供給路１２には、第１電磁弁２１が配設されており、洗濯機給水路４ｂには、第２電磁弁２２が配設されている。また、水道水供給路１２から分岐した分岐部分（分岐水道水供給路１２ａ）は、水道水を洗濯機３０に供給することができるように洗濯機給水路
４ｂに接続されている。なお、洗濯機給水路４ｂの先端側の部分は水道水が洗濯機３０に供給される場合の水道水供給路として機能する。また、分岐水道水供給路１２ａには、第３電磁弁２３が配設され、トイレ給水路４ａには、第４電磁弁２４が配設されている。
【００２３】
また、この実施形態の浴槽残り湯利用システムは、貯水タンクユニット５０をコントロールするためのリモートコントローラ６０を備えており、このリモートコントローラ６０は、貯水タンク４０に水が残っていることを示す残水表示ランプ６１、貯水タンク４０に水を貯める際に操作される貯水タンク採水スイッチ６２、洗濯機３０に給水する際に操作される洗濯用注水スイッチ６３，洗濯機３０に給水する時間を設定するための洗濯タイマー設定手段６４などを備えている。
【００２４】
さらに、分岐水道水供給路１２ａ及び洗濯機給水路４ｂには、逆流を防止するための逆流防止弁２５，２６が配設されている。
【００２５】
さらに、この実施形態の浴槽残り湯利用システムにおいては、貯水タンク４０に浴槽残り湯を供給する際に、給湯器側給湯路２とトイレ・洗濯機給湯路４とが連通するように三方弁１９を切り替え、循環ポンプ６を作動させることにより、給湯器循環路５、給湯器側給湯路２、トイレ・洗濯機給湯路４を経て、浴槽残り湯が貯水タンク４０に供給されるように構成されているとともに、貯水タンク４０に配設された水位センサ１１により貯水タンク４０の水位がＨ点に達していることが検出された場合には、循環ポンプ６が停止されて貯水タンク４０への浴槽残り湯の供給が終了し、浴槽残り湯をすべて貯水タンク４０に供給しても貯水タンク４０の水位がＬ点に達しない場合には、貯水タンク４０の水位がＬ点に達するまで水道水供給路１２から貯水タンク４０に水道水が供給されるように構成されている。
【００２６】
また、この実施形態の浴槽残り湯利用システムにおいては、貯水タンク４０からトイレタンク１４に給水することによりトイレへの給水が行われるとともに、水道水供給路１２及びトイレ用水道水供給路１５から、水道水がボールタップ１６を経てトイレタンク１４に供給される。
【００２７】
そして、貯水タンク４０からトイレタンク１４に給水しておいた水（浴槽残り湯）を流すことにより、トイレ使用後の便器１８の水洗が行われるとともに、トイレタンク１４の水が使用された後、トイレ用水道水供給路１５からボールタップ１６を経て水道水がトイレタンク１４に供給されることにより、水道水による手洗いと便器１８のリンスが行われる。
【００２８】
さらに、貯水タンク４０からトイレタンク１４に給水を行う場合に、水位がＨ点に達するまで給水を行うとともに、トイレ使用後にトイレタンク１４から水を流して便器１８の水洗を行った時点で、トイレタンク１４の水位がＨ点より低くＬ点より高い位置にある場合には、トイレを小便に使用したと判定し、水位がＬ点より低くなった場合には、トイレを大便に使用したと判定し、その判定結果に応じて所定の時間だけ、給水ポンプ８を作動させて貯水タンク４０から浴槽残り湯をトイレタンク１４に供給するタイミングを遅らせるとともに、この所定の時間に、トイレ用水道水供給路１５からボールタップ１６を経て水道水をトイレタンク１４に供給することにより、水道水による手洗い及び便器１８のリンスが行われる。
【００２９】
さらに、貯水タンク４０から洗濯機３０に給水する際に、貯水タンク４０の水位がＬ点にまで低下した時点で、水道水供給路１２、分岐水道水供給路１２ａ、洗濯機給水路４ｂを経て洗濯機３０に水道水が供給されるとともに、すすぎ工程では、貯水タンク４０からの給水は行われずに、水道水供給路１２、分岐水道水供給路１２ａ、洗濯機給水路４ｂを経て水道水が供給されるように構成されている。
【００３０】
また、この実施形態の浴槽残り湯利用システムにおいては、便器１８の水洗を行う場合に、所定回数に１回の割合で、貯水タンク４０からトイレタンク１４に水道水が供給され、トイレタンク１４内部及び便器１８が水道水で洗浄されるように構成されている。すなわち、所定回数に一回の割合で、貯水タンク４０に浴槽残り湯が供給されずに水道水が供給され、その水道水が貯水タンク４０から供給されることにより、トイレタンク１４、便器１８が水道水によりすすがれることになる。
【００３１】
次に、上記のように構成されたこの実施形態の浴槽残り湯利用システムの動作について説明する。
【００３２】
［貯水タンクへの浴槽残り湯の供給］
( １ )リモートコントローラ６０の貯水タンク採水スイッチ６２をＯＮにすることにより、循環ポンプ６が作動するとともに、三方弁１９が作動して、給湯器側給湯路２とトイレ・洗濯機給湯路４が連通状態となり、浴槽１０から残り湯が貯水タンク４０に供給される。
( ２ )そして、貯水タンク４０の水位がＨ点に達すると循環ポンプ６の運転が停止される。
( ３ )浴槽残り湯が少なく、貯水タンク４０の水位がＨ点に達しない場合、水位がＬ点を超えている場合には、水流スイッチ７がＯＦＦとなり、浴槽１０内に残り湯がなくなったと判断して、循環ポンプ６の運転が停止される。
( ４ )また、浴槽残り湯が少なくて、貯水タンクの水位がＬ点に達しない場合には、貯水タンク４０の水位が低すぎる（水不足である）と判断し、水道水供給路１２の給水電磁弁（第１電磁弁）２１が開となって、水位がＬ点に達するまで、水道水が供給される。なお、Ｌ点までしか水道水を供給しないのは、次回の風呂使用後の浴槽残り湯の利用率を向上させるためである。
( ５ )また、所定回数に一回の割合で、浴槽残り湯を供給することなく、水道水が貯水タンク４０に供給される。
これにより、貯水タンク、トイレタンク及び便器を、塩素を含む殺菌性のある水道水で洗浄することが可能になり、貯水タンク、トイレタンク、便器の清潔度を向上させることが可能になる。
なお、貯水タンクに水道水を供給するピッチは、貯水タンクの汚れ具合などを調べて、適宜決定することが望ましい。
【００３３】
［洗濯機への給水（給湯）］
( １ )洗濯機に給水する場合、使用量が洗濯の条件により異なるので、使用者がリモートコントローラ６０の洗濯タイマー設定手段６４により、使用量（浴槽残り湯の供給時間）を決定する。
( ２ )洗濯タイマー設定手段６４により設定された時間（設定時間）だけ第２電磁弁２２が開となり、給水ポンプ８が作動し、貯水タンク４０より洗濯機３０に給水（給湯）される。
( ３ )洗濯タイマー設定手段６４による設定時間が経過すると、第２電磁弁２２が閉となり、第３電磁弁２３が開となって、水道水を洗濯機３０に供給することができる状態となる（すなわち、洗いの工程だけに浴槽残り湯が利用され、その後の段階では水道水が使用されることになる）。
( ４ )そして、洗濯工程がすすぎの段階にはいると、洗濯機３０には水道水供給路１２、分岐水道水供給路１２ａ、洗濯機給水路４ｂを経て水道水が供給され、洗濯物が水道水によりすすがれる。
【００３４】
［トイレへの給水］
( １ )トイレ使用後に、トイレタンク１４のトイレ洗浄ノブ（図示せず）が操作され開になると、トイレタンク１４から便器１８に給水され、便器１８の洗浄が行われる。
( ２ )そして、トイレタンク１４の水位がＨ点より低くＬ点より高い位置にある場合（すなわち、水位センサ１７のＨ点がＯＦＦ、Ｌ点がＯＮとなった場合）には、トイレを小便に使用したと判定し、水位がＬ点より低くなった場合（水位センサ１７のＨ点及びＬ点がいずれもＯＦＦとなった場合）には、トイレを大便に使用したと判定する。
( ３ )そして、トイレ使用後に、給水ポンプ８を作動させて浴槽残り湯をトイレタンク１４に供給するタイミングを、上述の大・小便の判定結果に応じて、所定の時間だけ遅延させるとともに、この所定の時間が経過する間に、トイレ用水道水供給路１５からボールタップ１６を経て水道水をトイレタンク１４に供給し、水道水による手洗い及び便器１８のリンスを行うことができるようにする。
( ４ )そして、上記所定の時間（遅延時間）が経過した後、給水ポンプ８を作動させて浴槽残り湯をトイレタンク１４に供給し、次回のトイレの使用に備える。
( ５ )また、所定回数に一回の割合で、貯水タンク４０に浴槽残り湯が供給されずに水道水が供給され、その水道水が貯水タンク４０から供給されることにより、トイレタンク１４、便器１８が水道水によりすすがれることになる。
上述のように、この実施形態の浴槽残り湯利用システムにおいては、浴槽残り湯を貯水タンク４０に貯めた後、貯水タンク４０からトイレタンク１４及び洗濯機３０に分配、供給するようにしているので、効率よく浴槽残り湯を利用することが可能になるとともに、システム全体の構成をシンプルにすることが可能になり、経済的に、浴槽残り湯を効率よく使用することが可能なシステムを実現することができる。
【００３５】
なお、上記実施形態では、給湯器側給湯路、風呂給湯路及びトイレ・洗濯機給湯路の連通状態を切り替えるための切替手段として三方弁を用いた場合について説明したが、三方弁を用いる代わりに、給湯器側給湯路、風呂給湯路及びトイレ・洗濯機給湯路のそれぞれに開閉弁を設け、その開閉により給水路の切り換えを行うように構成することも可能である。
【００３６】
本発明は、その他の点においても、上記実施形態に限定されるものではなく、給湯器の具体的な構成、各給湯路の具体的な接続態様などに関し、発明の要旨の範囲内において、種々の応用、変形を加えることが可能である。
【００３７】
【発明の効果】
上述したように、本発明（請求項１）の浴槽残り湯利用システムは、浴槽残り湯を貯水タンクに貯めた後、切替手段により給湯路（給水路）の切り換えを行い、浴槽残り湯を貯水タンクからトイレ及び洗濯機に分配、供給するようにしているので、浴槽残り湯を効率よく利用することが可能になる。また、特に複雑な構成を必要とせず、設備コストの増大を抑えることが可能で、経済的見地からも十分な実用性を備えた浴槽残り湯利用システムを実現することができる。
【００３８】
また、トイレタンクから水を流すことにより、トイレ使用後の便器の水洗を行った後に、水道水供給路からボールタップを経て水道水がトイレタンクに供給されるようにした場合、水道水による手洗いと便器の水道水によるリンスを行うことが可能になり、清潔性を損なうことなく、浴槽残り湯の有効利用を図ることができる。
【００３９】
また、給湯器側給湯路、風呂給湯路及びトイレ・洗濯機給湯路の連通状態を切り替える手段としては、種々の手段を用いることができるが、請求項２のように、三方弁を切替手段として用い、給湯器側給湯路から風呂給湯路及びトイレ・洗濯機給湯路が分岐する位置に三方弁を配設することにより、部品数の増大を招いたりすることなく、確実に給湯器側給湯路、風呂給湯路及びトイレ・洗濯機給湯路の連通状態を切り替えることが可能になり、本発明をより実効あらしめることができる。
【００４０】
また、請求項３の浴槽残り湯利用システムのように、貯水タンクに水位センサを配設するとともに、水道水を供給するための水道水供給路を配設し、貯水タンクの水位がＨ点に達すると貯水タンクへの浴槽残り湯の供給を終了し、浴槽残り湯を貯水タンクに供給しても貯水タンクの水位がＬ点に達しないときには、水位がＬ点に達するまで貯水タンクに水道水を供給するようにした場合、浴槽残り湯を効率よく利用することが可能になるとともに、浴槽に残った湯が少なくて、それを貯水タンクに貯めただけではトイレ洗浄や洗濯に必要な水をまかないきれない場合にも、トイレ洗浄や洗濯に支障をきたすことがなくなり、信頼性を向上させることができる。
【００４１】
また、請求項４の浴槽残り湯利用システムのように、トイレタンクに、トイレタンクの水位を検出する水位センサを配設し、トイレ使用後にトイレタンクから水を流して便器の水洗を行った時点でのトイレタンクの水位から、大・小便の判定を行い、給水ポンプを作動させて貯水タンクから浴槽残り湯をトイレタンクに供給するタイミングを、その判定結果に応じて所定の時間だけ遅らせるとともに、その間に水道水供給路からボールタップを経て水道水をトイレタンクに供給することにより、使用状態に応じて、水道水による手洗い及び便器のリンスを行うことが可能になり、本発明をさらに実効あらしめることができる。
【００４２】
また、請求項５の浴槽残り湯利用システムのように、貯水タンクに浴槽残り湯を供給する場合に、所定回数に１回の割合で、浴槽残り湯を貯水タンクに供給せず、水道水を貯水タンクに供給することにより、貯水タンク、トイレタンク及び便器を、所定のピッチで塩素を含む殺菌性のある水道水で洗浄することが可能になり、貯水タンクやトイレタンクなどを清潔に保つことができる。
【図面の簡単な説明】
【図１】本発明の一実施形態にかかる浴槽残り湯利用システムの構成を示す図である。
【符号の説明】
１給湯器
２給湯器側給湯路
３風呂給湯路
４トイレ・洗濯機給湯路
４ａトイレ給水路
４ｂ洗濯機給水路
５給湯器循環路
６循環ポンプ
７水流スイッチ
８給水ポンプ
９水流スイッチ
１０風呂（浴槽）
１０ａ風呂アダプタ
１１水位センサ
１２水道水供給路
１２ａ分岐水道水供給路
１３オーバーフロー配管
１４トイレタンク
１５トイレ用水道水供給路
１６ボールタップ
１７水位センサ
１８便器
１９三方弁
２０水洗トイレ
２１第１電磁弁
２２第２電磁弁
２３第３電磁弁
２４第４電磁弁
２５，２６逆流防止弁
３０洗濯機
４０貯水タンク
５０貯水タンクユニット
６０リモートコントローラ
６１残水表示ランプ
６２貯水タンク採水スイッチ
６３洗濯用注水スイッチ
６４洗濯タイマー設定手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a system that effectively uses remaining hot water from a bathtub, and more particularly, to a system that uses residual hot water from a bathtub that can effectively use the remaining hot water from a bathtub for washing and washing a flush toilet.
[0002]
[Prior art and problems to be solved by the invention]
Conventionally, a system has been proposed in which the hot water in the bathtub is used for washing in order to effectively use the remaining hot water in the bathtub. According to this system, the remaining hot water in the bathtub can be effectively used. .
[0003]
However, when the remaining bath water is used for washing, tap water is usually used as the rinsing water, so the use of the remaining bath water is mainly limited to use during washing. Only about 30 liters is used a day, and there is a problem that the utilization efficiency of the remaining bath water is not sufficient.
[0004]
This invention solves the said problem, and it aims at providing the bathtub remaining hot water utilization system which can utilize the bathtub remaining hot water more efficiently than the conventional system.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the remaining bath water utilization system of the present invention (Claim 1)
A water heater,
A hot water supply side hot water supply passage serving as a passage for hot water supplied from the water heater,
Branched from the water heater hot-water supply passage, a bath hot-water supply path for hot water to a bath, and a toilet washing machine water heater path order to feed water to flush toilets and washing machine,
A water heater circuit for circulating hot water from the bathtub to the water heater,
A circulation pump for circulating hot water in a circulation path including a hot water supply side hot water supply path, a bath hot water supply path, and a hot water supply circuit;
A water storage tank that is disposed in the toilet / washing machine hot water supply path and stores hot water remaining in the bathtub to be supplied to the flush toilet and washing machine;
A water supply pump disposed downstream of the water storage tank in the toilet / washing machine hot water supply path and supplying water from the water storage tank to the flush toilet and the washing machine,
The communication status of the water heater side hot water path, bath hot water path and toilet / washer hot water path
(a) A state where the water heater side hot water supply channel and the bath water supply channel communicate with each other;
(b) switching means for switching so that the hot water supply side hot water supply path and the toilet / washing machine hot water supply path communicate with each other; and
When performing bath hot water supply, the hot water supply side hot water passage and the bath hot water supply passage are communicated by the switching means, the circulating pump is operated to perform hot water supply from the water heater to the bath,
When the remaining hot water in the bathtub is stored in the water storage tank, the hot water supply side hot water path and the toilet / washing machine hot water path are connected by the switching means, the circulation pump is operated, and the remaining hot water in the bathtub flows into the water storage tank.
If you feedwater flush toilet and washing machine, it communicates the water heater hot-water supply passage and toilets, washing machines hot water path by the switching means, disposed downstream from the water storage tank of toilets, washing machines hot water path the It is configured to operate the water supply pump to supply water from the water storage tank to the flush toilet and washing machine , and
Water is supplied to the flush toilet by supplying water to the toilet tank from the water storage tank, and the toilet tank is provided with a tap water supply path for supplying tap water to the toilet tank via a ball tap,
By flushing the water that has been supplied from the water storage tank to the toilet tank, the toilet bowl is washed after use.
After the toilet tank water is used, tap water is supplied from the tap water supply path to the toilet tank via a ball tap, so that hand washing with the tap water and urinal rinsing are performed. It is a feature.
[0006]
The bath remaining hot water utilization system of the present invention is provided with a water storage tank for storing the remaining bath water to be supplied to the toilet and the washing machine in the toilet / washing machine hot water supply path, as well as a hot water supply side hot water supply path and a bath hot water supply. Switching means for switching the communication state of the road and toilet / washing machine hot water supply path is provided, the hot water supply path (water supply path) is switched by this switching means, and the remaining hot water in the bathtub stored in the water storage tank is transferred to the toilet and washing machine. Since distribution and supply are performed, it is possible to efficiently use the remaining bath water by efficiently using the remaining bath water in both the toilet and the washing machine.
[0007]
In addition, after flushing toilets after using the toilet tank by flushing water from the toilet tank, tap water is supplied to the toilet tank via a ball tap from the tap water supply channel. It is possible to rinse the toilet with tap water, and to effectively use the hot water remaining in the bathtub without impairing cleanliness.
In addition, when operating a water supply pump and supplying water to a toilet and a washing machine from a water storage tank, as a method of switching a water supply channel to a toilet and a water supply channel to a washing machine, various known switching methods are applied. Is possible.
[0008]
In the bathtub remaining hot water utilization system according to claim 2, as the switching means, a three-way valve is disposed and used at a position where the bath hot water supply path and the toilet / washing machine hot water supply path branch from the hot water supply side hot water supply path. It is characterized by.
[0009]
Various means can be used as the means for switching the communication state of the water heater side hot water path, the bath hot water path, and the toilet / washer hot water path, but the three-way valve is used as the switching means, and the bath is opened from the water heater side hot water path. By arranging a three-way valve at the position where the hot water supply path and toilet / washing machine hot water supply branch branch, the hot water supply side hot water supply path, bath hot water supply path and toilet / washing machine are ensured without increasing the number of parts. It becomes possible to switch the communication state of the hot water supply path, and the present invention can be more effectively presented.
[0010]
The bathtub remaining hot water utilization system according to claim 3 is:
A water storage tank, with water level sensor for detecting a predetermined high water level · H Ten及 beauty low water · L point are arranged, tap water supply passage is disposed for supplying tap water,
When supplying the hot water remaining in the bathtub to the water storage tank, the switching means is switched so that the hot water supply side hot water passage and the toilet / washer hot water supply passage communicate with each other, and the circulation pump is activated to The hot water remaining in the bathtub is supplied to the water storage tank through the hot water supply channel on the side of the vessel, the toilet / washing machine hot water supply channel,
When the water level sensor detects that the water level of the water storage tank has reached the H point, the circulation pump is stopped and the supply of the remaining bath water to the water storage tank is terminated.
If the water level of the water storage tank does not reach point L even after all the remaining hot water is supplied to the water storage tank, tap water is supplied from the tap water supply channel to the water storage tank until the water level reaches point L. It is characterized by being.
[0011]
A water level sensor is installed in the water storage tank, and a tap water supply passage for supplying tap water is provided. When the water level of the water storage tank reaches the H point, the supply of the remaining hot water in the bathtub to the water storage tank is terminated. If the water level of the water storage tank does not reach point L even when the remaining water in the bathtub is supplied to the water storage tank, tap water is efficiently used if tap water is supplied to the water storage tank until the water level reaches point L. If the hot water remaining in the bathtub is low and the water needed for washing and washing the toilet cannot be covered by simply storing it in the water storage tank, it will hinder the washing and washing of the toilet. It becomes possible to improve reliability.
[0012]
The bathtub remaining hot water utilization system according to claim 4 is:
The toilet tank water level sensor for detecting a predetermined high water level · H Ten及 beauty low water · L point is disposed,
When subjected to water washing toilet by flowing water from the toilet tank after the toilet use, the water level H point of the water level sensor What higher position near lower than L point than H point of the toilet tank is OFF, L point and ON the became case, it determines that it has used the toilet urine, in cases where the point H and point L are both turned OFF in the water level sensor I water level Do lower than L point, the toilet stool Determined that it was used,
After the toilet tank water has been used, the timing to supply the remaining hot water from the water storage tank to the toilet tank by delaying the water pump is delayed by a predetermined time according to the result of the determination of large and small stools. While the delay time, which is the predetermined time , has passed, tap water is supplied to the toilet tank via a ball tap from the tap water supply channel, and hand washing and urinal rinsing with tap water are performed.
After the lapse of the delay time, the remaining water in the bathtub is supplied from the water storage tank to the toilet tank by operating the water supply pump.
[0013]
The toilet tank is equipped with a water level sensor that detects the water level of the toilet tank. After using the toilet, water is flushed from the toilet tank and the toilet tank is flushed to determine whether the toilet tank is large or small. The timing to supply the remaining hot water from the storage tank to the toilet tank by operating the water pump is delayed by a predetermined time according to the determination result, and the tap water is passed through the ball tap from the tap water supply channel in the meantime. According to the usage condition, it becomes possible to perform hand-washing with tap water and rinsing of the toilet bowl, and the present invention can be further effectively realized.
[0014]
Further, in the case of supplying water to the water storage tank, the bath remaining hot water utilization system according to claim 5 supplies tap water to the water storage tank at a rate of once every predetermined number of times without supplying the water remaining in the bathtub to the water storage tank. The water storage tank, the toilet tank, and the toilet bowl are configured to be washed with tap water.
[0015]
When supplying the remaining hot water in the bathtub to the water storage tank, the remaining water in the bathtub is not supplied to the water storage tank, but the tap water is supplied to the water storage tank at a predetermined rate. Can be washed with sterilized tap water containing chlorine at a predetermined pitch, and the water storage tank, toilet tank, etc. can be kept clean.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be shown and the features thereof will be described in more detail.
[0017]
FIG. 1 is a diagram showing a configuration of a remaining bath water utilization system according to an embodiment of the present invention. This bath remaining hot water use system is composed of a hot water heater 1 for bath hot water supply, a hot water supply side hot water supply path 2 serving as a passage for hot water supplied from the hot water heater 1, and a bath (tub) branched from the hot water supply side hot water supply path 2 ) Bath hot water supply path 3 for supplying hot water to 10 and toilet / washing machine hot water supply path 4 for supplying hot water (water supply) to flush toilet 20 and washing machine 30, and hot water supply for circulating hot water from bathtub 10 to water heater 1 In order to circulate hot water in a circulation path composed of a heater circulation path 5, a hot water supply side hot water supply path 2, a bath hot water supply path 3, and a hot water supply circuit circulation path 5, the hot water supply circuit 1 is provided in the water heater circulation path 5 The circulation pump 6 and the water flow switch 7, the water storage tank 40 which is disposed in the middle of the toilet / washing machine hot water supply path 4 and stores the hot water remaining in the bathtub to be supplied to the flush toilet 20 and the washing machine 30, and the toilet / washing Located downstream of the water storage tank 40 in the machine hot water supply path 4 A water supply pump 8 and a water flow switch 9 for supplying water to the flush toilet 20 and the washing machine 30, and a hot water supply side hot water supply path 2 are arranged at positions where the bath hot water supply path 3 and the toilet / washing machine hot water supply path 4 are branched. The hot water supply side 2, the bath hot water supply path 3, and the toilet / washing machine hot water supply path 4 are connected, the hot water supply side hot water supply path 2 and the bath hot water supply path 3 are connected, the hot water supply side hot water supply path 2 and the toilet / washing machine A three-way valve (switching means) 19 that switches so that the hot water supply path 4 is in any one of the connected states is provided.
In this embodiment, the circulation pump 6 is configured so that hot water can be circulated through a circulation path including the hot water supply side hot water supply path 2, the bath hot water supply path 3, and the hot water supply circuit 5; By heating the circulated hot water with the hot water heater 1 and supplying the hot water to the bathtub 10, it is possible to carry out remedy or maintain the hot water in the bathtub 10 at a predetermined temperature.
[0018]
Moreover, in this embodiment, although the bath adapter 10a is arrange | positioned in the side surface of the bathtub 10, the remaining hot water of the bathtub 10 can be used still more efficiently by arrange | positioning the bath adapter 10a in the bottom part of the bathtub 10. It is also possible to configure.
[0019]
The water storage tank 40 is provided with a water level sensor 11 for detecting a predetermined high water level (H point) and low water level (L point), and a tap water supply path 12 for supplying tap water. It is arranged. An overflow pipe 13 is attached to the water storage tank 40, and the overflow pipe 13 is connected to a toilet tank 14 for supplying cleaning water to the toilet bowl 18.
[0020]
Furthermore, the toilet / washing machine hot water supply path 4 is branched into a toilet water supply path 4 a connected to the toilet tank 14 and a washing machine water supply path 4 b connected to the washing machine 30. The toilet water supply channel 4 a joins the overflow pipe 13 and is connected to the toilet tank 14 on the way. Further, a tap water supply path 15 for supplying tap water to the toilet tank 14 branches from a tap water supply path 12 for supplying tap water to the water storage tank 40. The path 15 is connected to the ball tap 16 of the toilet tank 14.
[0021]
The toilet tank 14 is provided with a water level sensor 17 for detecting a predetermined high water level (H point) and a low water level (L point).
[0022]
And the 1st solenoid valve 21 is arrange | positioned in the tap water supply path 12 for supplying a tap water to the water storage tank 40, and the 2nd solenoid valve 22 is arrange | positioned in the washing machine water supply path 4b. ing. Further, a branch portion (branched tap water supply path 12 a) branched from the tap water supply path 12 is connected to the washing machine water supply path 4 b so that tap water can be supplied to the washing machine 30. The portion on the front end side of the washing machine water supply channel 4 b functions as a tap water supply channel when tap water is supplied to the washing machine 30. Moreover, the 3rd solenoid valve 23 is arrange | positioned at the branch tap water supply path 12a, and the 4th solenoid valve 24 is arrange | positioned at the toilet water supply path 4a.
[0023]
Moreover, the bathtub remaining hot water utilization system of this embodiment is equipped with the remote controller 60 for controlling the water storage tank unit 50, and this remote controller 60 shows that the water remains in the water storage tank 40. The indicator lamp 61, the water tank sampling switch 62 operated when storing water in the water storage tank 40, the washing water injection switch 63 operated when supplying water to the washing machine 30, and the time for supplying water to the washing machine 30 are set. For example, a washing timer setting means 64 is provided.
[0024]
Furthermore, backflow prevention valves 25 and 26 for preventing backflow are disposed in the branch tap water supply path 12a and the washing machine water supply path 4b.
[0025]
Furthermore, in the bathtub remaining hot water utilization system of this embodiment, when supplying the bathtub remaining hot water to the water storage tank 40, the three-way valve 19 is arranged so that the hot water supply side hot water supply path 2 and the toilet / washing machine hot water supply path 4 communicate with each other. The hot water remaining in the bathtub is supplied to the water storage tank 40 through the hot water supply circuit 5, the hot water supply side hot water supply path 2, and the toilet / washing machine hot water supply path 4. If the water level sensor 11 disposed in the water storage tank 40 detects that the water level of the water storage tank 40 has reached the H point, the circulation pump 6 is stopped and the bath to the water storage tank 40 is stopped. If the supply of the remaining hot water is finished and the water level of the water storage tank 40 does not reach the L point even if all the hot water remaining in the bathtub is supplied to the water storage tank 40, the tap water is supplied until the water level of the water storage tank 40 reaches the L point. Road 1 Tap water is arranged to be supplied to the water storage tank 40 from.
[0026]
In the bathtub remaining hot water utilization system of this embodiment, water is supplied to the toilet by supplying water from the water storage tank 40 to the toilet tank 14, and from the tap water supply path 12 and the toilet tap water supply path 15, Tap water is supplied to the toilet tank 14 via the ball tap 16.
[0027]
And after flushing the water (tub remaining hot water) supplied to the toilet tank 14 from the water storage tank 40, the toilet 18 after use of the toilet is washed with water, and the water in the toilet tank 14 is used. When tap water is supplied from the toilet tap water supply passage 15 to the toilet tank 14 via the ball tap 16, hand washing with tap water and rinsing of the toilet bowl 18 are performed.
[0028]
Further, when water is supplied from the water storage tank 40 to the toilet tank 14, the water is supplied until the water level reaches the point H, and the toilet 18 is flushed by flowing water from the toilet tank 14 after using the toilet. When the water level of the tank 14 is lower than the H point and higher than the L point, it is determined that the toilet is used for urine, and when the water level is lower than the L point, it is determined that the toilet is used for stool. Then, according to the determination result, the water supply pump 8 is operated for a predetermined time to delay the timing of supplying the remaining hot water from the water storage tank 40 to the toilet tank 14, and at the predetermined time, the tap water is supplied to the toilet. By supplying tap water from the path 15 to the toilet tank 14 via the ball tap 16, hand washing with tap water and rinsing of the toilet bowl 18 are performed.
[0029]
Further, when water is supplied from the water storage tank 40 to the washing machine 30, when the water level of the water storage tank 40 is lowered to the point L, the water supply path 12, the branch tap water supply path 12a, and the washing machine water supply path 4b are passed. Tap water is supplied to the washing machine 30, and in the rinsing process, tap water is not supplied from the water storage tank 40, but supplied through the tap water supply path 12, the branch tap water supply path 12a, and the washing machine supply path 4b. It is configured to be supplied.
[0030]
Moreover, in the bathtub remaining hot water utilization system of this embodiment, when flushing the toilet 18, the tap water is supplied from the water storage tank 40 to the toilet tank 14 at a rate of once every predetermined number of times. And the toilet bowl 18 is comprised so that it may wash | clean with tap water. That is, tap water is supplied to the water storage tank 40 without supplying the hot water remaining in the bathtub at a rate of once every predetermined number of times, and the tap water is supplied from the water storage tank 40, so that the toilet tank 14 and the toilet bowl 18 are It will be rinsed with tap water.
[0031]
Next, operation | movement of the bathtub remaining hot water utilization system of this embodiment comprised as mentioned above is demonstrated.
[0032]
[Supply of hot water remaining in bathtub to water storage tank]
( 1 ) By turning ON the water tank sampling switch 62 of the remote controller 60, the circulation pump 6 is activated and the three-way valve 19 is activated, so that the hot water supply side hot water supply path 2 and the toilet / washing machine hot water supply path 4 are operated. Becomes a communication state, and the remaining hot water is supplied from the bathtub 10 to the water storage tank 40.
( 2 ) When the water level of the water storage tank 40 reaches the H point, the operation of the circulation pump 6 is stopped.
( 3 ) When there is little remaining hot water in the bathtub and the water level of the water storage tank 40 does not reach the H point, or when the water level exceeds the L point, the water flow switch 7 is turned off and there is no remaining hot water in the bathtub 10. As a result, the operation of the circulation pump 6 is stopped.
( 4 ) In addition, when there is little hot water remaining in the bathtub and the water level of the water storage tank does not reach point L, it is determined that the water level of the water storage tank 40 is too low (water shortage), and the water supply of the tap water supply channel 12 Tap water is supplied until the solenoid valve (first solenoid valve) 21 is opened and the water level reaches point L. The reason that the tap water is supplied only up to the point L is to improve the utilization rate of the hot water remaining in the bathtub after the next use of the bath.
( 5 ) Further , the tap water is supplied to the water storage tank 40 at a rate of once every predetermined number of times without supplying the hot water remaining in the bathtub.
Thereby, it becomes possible to wash | clean a water storage tank, a toilet tank, and a toilet bowl with the bactericidal tap water containing chlorine, and it becomes possible to improve the cleanliness of a water storage tank, a toilet tank, and a toilet bowl.
Note that the pitch for supplying tap water to the water storage tank is preferably determined as appropriate by examining the degree of contamination of the water storage tank.
[0033]
[Water supply to washing machine (hot water)]
( 1 ) When water is supplied to the washing machine, the amount of use varies depending on the condition of washing. Therefore, the user determines the amount of use (supply time of the remaining hot water in the bathtub) by the washing timer setting means 64 of the remote controller 60.
( 2 ) The second electromagnetic valve 22 is opened for the time set by the washing timer setting means 64 (set time), the water supply pump 8 is operated, and water is supplied (hot water) from the water storage tank 40 to the washing machine 30.
( 3 ) When the set time by the washing timer setting means 64 elapses, the second electromagnetic valve 22 is closed and the third electromagnetic valve 23 is opened, so that tap water can be supplied to the washing machine 30. (That is, the remaining bath water is used only for the washing process, and tap water is used in the subsequent stage).
( 4 ) When the washing process enters the rinsing stage, tap water is supplied to the washing machine 30 via the tap water supply path 12, the branch tap water supply path 12a, and the washing machine water supply path 4b. Rinse with tap water.
[0034]
[Water supply to the toilet]
( 1 ) When a toilet cleaning knob (not shown) of the toilet tank 14 is operated and opened after using the toilet, water is supplied from the toilet tank 14 to the toilet bowl 18 and the toilet bowl 18 is cleaned.
( 2 ) When the water level of the toilet tank 14 is lower than the H point and higher than the L point (that is, when the H level of the water level sensor 17 is OFF and the L point is ON), the toilet is urinated. When the water level is lower than the L point (when both the H point and the L point of the water level sensor 17 are OFF), it is determined that the toilet has been used for stool.
( 3 ) Then, after using the toilet, the timing of supplying the remaining hot water to the toilet tank 14 by operating the water supply pump 8 is delayed for a predetermined time according to the determination result of the above-mentioned large and small stools. During a predetermined time, tap water is supplied to the toilet tank 14 from the toilet tap water supply path 15 via the ball tap 16 so that hand washing with the tap water and rinsing of the toilet bowl 18 can be performed.
( 4 ) Then, after the predetermined time (delay time) has elapsed, the water supply pump 8 is operated to supply the remaining bath water to the toilet tank 14 to prepare for the next use of the toilet.
( 5 ) In addition, the tap water is supplied to the water storage tank 40 without supplying the hot water remaining in the bathtub at a rate of once every predetermined number of times, and the tap water is supplied from the water storage tank 40, so that the toilet tank 14, The toilet bowl 18 is rinsed with tap water.
As described above, in the bath remaining hot water utilization system of this embodiment, after the bath remaining hot water is stored in the water storage tank 40, it is distributed and supplied from the water storage tank 40 to the toilet tank 14 and the washing machine 30. This makes it possible to efficiently use the remaining hot water from the bathtub, and to simplify the overall system configuration, thereby realizing a system that can efficiently use the remaining hot water from the bathtub. be able to.
[0035]
In the above embodiment, the case where the three-way valve is used as a switching means for switching the communication state of the water heater side hot water supply path, the bath hot water supply path, and the toilet / washing machine hot water supply path has been described, but instead of using the three-way valve. It is also possible to provide an open / close valve in each of the hot water supply side hot water supply path, the bath hot water supply path and the toilet / washing machine hot water supply path, and to switch the water supply path by opening and closing the open / close valve.
[0036]
In other respects, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the invention, with respect to a specific configuration of the water heater, a specific connection mode of each hot water passage, and the like. It is possible to add applications and modifications.
[0037]
【The invention's effect】
As described above, the remaining bath water utilization system of the present invention (Claim 1) stores the remaining bath water in the water storage tank, then switches the hot water supply path (water supply channel) by the switching means, and stores the remaining bath water. Since it distributes and supplies from a tank to a toilet and a washing machine, it becomes possible to utilize a bathtub remaining hot water efficiently. In addition, it is possible to realize a bath remaining hot water utilization system that does not require a particularly complicated configuration, can suppress an increase in equipment cost, and has sufficient practicality from an economical point of view.
[0038]
In addition, if water is flushed from the toilet tank and the toilet is flushed after using the toilet, then tap water is supplied to the toilet tank via a ball tap from the tap water supply channel. It becomes possible to perform rinsing with tap water in the toilet, and effective use of the hot water remaining in the bathtub can be achieved without impairing cleanliness.
[0039]
In addition, as a means for switching the communication state of the hot water supply side hot water supply path, the bath hot water supply path, and the toilet / washing machine hot water supply path, various means can be used. As in claim 2, a three-way valve is used as the switching means. By using a three-way valve at the position where the hot water supply channel on the hot water supply side and the bath hot water supply channel and the toilet / washing machine hot water supply channel are used, the hot water supply side hot water supply channel is surely secured without causing an increase in the number of parts. It is possible to switch the communication state of the bath hot water supply path and the toilet / washing machine hot water supply path, and the present invention can be more effectively realized.
[0040]
Further, as in the remaining bath water utilization system according to claim 3, a water level sensor is provided in the water storage tank, a tap water supply passage for supplying tap water is provided, and the water level of the water storage tank is set at the H point. If the water level of the water storage tank does not reach the L point even if the water remaining in the bathtub is supplied to the water storage tank and the water level of the water storage tank does not reach the L point, the tap water is supplied to the water storage tank until the water level reaches the L point. This makes it possible to efficiently use the hot water remaining in the bathtub, and there is little hot water left in the bathtub, and if it is stored in a water storage tank, the water required for toilet cleaning and washing can be obtained. Even if it can not be covered, there will be no hindrance to toilet washing and washing, and reliability can be improved.
[0041]
Moreover, when the water level sensor which detects the water level of a toilet tank is arrange | positioned in a toilet tank like the bathtub remaining hot water utilization system of Claim 4 , water is flushed from a toilet tank after using a toilet, and the toilet bowl was flushed From the toilet tank level in Japan, it is determined whether urine or urine, the timing to supply the remaining hot water from the water storage tank to the toilet tank by operating the water supply pump is delayed by a predetermined time according to the determination result, In the meantime, by supplying tap water from the tap water supply path to the toilet tank via a ball tap, it becomes possible to perform hand-washing with tap water and rinsing of the toilet bowl according to the state of use, which further enhances the present invention. be able to.
[0042]
Further, when the remaining hot water in the bathtub is supplied to the water storage tank as in the system for using the remaining hot water in the bathtub according to claim 5, the remaining water in the bathtub is not supplied to the water storage tank at a rate of once every predetermined number of times. By supplying water to the water storage tank, it becomes possible to wash the water storage tank, toilet tank and toilet bowl with sterilized tap water containing chlorine at a predetermined pitch, and keep the water storage tank and toilet tank clean. Can do.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a remaining bath water utilization system according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water heater 2 Water heater side water supply path 3 Bath hot water supply path 4 Toilet and washing machine hot water supply path 4a Toilet water supply path 4b Washing machine water supply path 5 Water heater circulation path 6 Circulation pump 7 Water flow switch 8 Water supply pump 9 Water flow switch 10 Bath (tub) )
DESCRIPTION OF SYMBOLS 10a Bath adapter 11 Water level sensor 12 Tap water supply path 12a Branch tap water supply path 13 Overflow piping 14 Toilet tank 15 Toilet tap water supply path 16 Ball tap 17 Water level sensor 18 Toilet bowl 19 Three-way valve 20 Flush toilet 21 1st solenoid valve 22 1st 2 Solenoid Valve 23 3rd Solenoid Valve 24 4th Solenoid Valve 25, 26 Backflow Prevention Valve 30 Washing Machine 40 Reservoir Tank 50 Reservoir Tank Unit 60 Remote Controller 61 Remaining Water Display Lamp 62 Reservoir Tank Watering Switch 63 Washing Injection Switch 64 Washing Timer setting means

Claims

A water heater,
A hot water supply side hot water supply passage serving as a passage for hot water supplied from the water heater,
Branched from the water heater hot-water supply passage, a bath hot-water supply path for hot water to a bath, and a toilet washing machine water heater path order to feed water to flush toilets and washing machine,
A water heater circuit for circulating hot water from the bathtub to the water heater,
A circulation pump for circulating hot water in a circulation path including a hot water supply side hot water supply path, a bath hot water supply path, and a hot water supply circuit;
A water storage tank that is disposed in the toilet / washing machine hot water supply path and stores hot water remaining in the bathtub to be supplied to the flush toilet and washing machine;
A water supply pump disposed downstream of the water storage tank in the toilet / washing machine hot water supply path and supplying water from the water storage tank to the flush toilet and the washing machine,
The communication status of the water heater side hot water path, bath hot water path and toilet / washer hot water path
(a) A state where the water heater side hot water supply channel and the bath water supply channel communicate with each other;
(b) switching means for switching so that the hot water supply side hot water supply path and the toilet / washing machine hot water supply path communicate with each other; and
When performing bath hot water supply, the hot water supply side hot water passage and the bath hot water supply passage are communicated by the switching means, the circulating pump is operated to perform hot water supply from the water heater to the bath,
When the remaining hot water in the bathtub is stored in the water storage tank, the hot water supply side hot water path and the toilet / washing machine hot water path are connected by the switching means, the circulation pump is operated, and the remaining hot water in the bathtub flows into the water storage tank.
If you feedwater flush toilet and washing machine, it communicates the water heater hot-water supply passage and toilets, washing machines hot water path by the switching means, disposed downstream from the water storage tank of toilets, washing machines hot water path the It is configured to operate the water supply pump to supply water from the water storage tank to the flush toilet and washing machine , and
Water is supplied to the flush toilet by supplying water to the toilet tank from the water storage tank, and the toilet tank is provided with a tap water supply path for supplying tap water to the toilet tank via a ball tap,
By flushing the water that has been supplied from the water storage tank to the toilet tank, the toilet bowl is washed after use.
After the toilet tank water is used, tap water is supplied to the toilet tank via a ball tap from the tap water supply path, so that hand washing with tap water and toilet rinsing are performed. A bath tub remaining hot water system.

The use of remaining hot water in a bathtub according to claim 1, wherein a three-way valve is disposed and used as the switching means at a position where the bath hot water supply path and the toilet / washing machine hot water supply path branch from the hot water supply side hot water supply path. system.

A water storage tank, with water level sensor for detecting a predetermined high water level · H Ten及 beauty low water · L point are arranged, tap water supply passage is disposed for supplying tap water,
When supplying the hot water remaining in the bathtub to the water storage tank, the switching means is switched so that the hot water supply side hot water passage and the toilet / washer hot water supply passage communicate with each other, and the circulation pump is activated to The hot water remaining in the bathtub is supplied to the water storage tank through the hot water supply channel on the side of the vessel, the toilet / washing machine hot water supply channel,
When the water level sensor detects that the water level of the water storage tank has reached the H point, the circulation pump is stopped and the supply of the remaining bath water to the water storage tank is terminated.
If the water level of the water storage tank does not reach point L even after all the remaining hot water is supplied to the water storage tank, tap water is supplied from the tap water supply channel to the water storage tank until the water level reaches point L. The bathtub remaining hot water utilization system according to claim 1 or 2, wherein

The toilet tank water level sensor for detecting a predetermined high water level · H Ten及 beauty low water · L point is disposed,
When subjected to water washing toilet by flowing water from the toilet tank after the toilet use, the water level H point of the water level sensor What higher position near lower than L point than H point of the toilet tank is OFF, L point and ON the became case, it determines that it has used the toilet urine, in cases where the point H and point L are both turned OFF in the water level sensor I water level Do lower than L point, the toilet stool Determined that it was used,
After the toilet tank water has been used, the timing to supply the remaining hot water from the water storage tank to the toilet tank by delaying the water pump is delayed by a predetermined time according to the result of the determination of large and small stools. while during the time delay is a predetermined time has elapsed, the tap water is supplied to the toilet tank through the ball tap from the tap water supply passage, perform rinsing hand washing and toilet with tap water,
The bathtub remaining according to any one of claims 1 to 3 , wherein after the delay time elapses, the remaining water is supplied to the toilet tank from the water storage tank by operating the water supply pump. Hot water use system.

When water is supplied to the water storage tank, tap water is supplied to the water storage tank without supplying the hot water remaining in the bathtub to the water storage tank at a predetermined rate, and the water storage tank, toilet tank and toilet are washed with tap water. It is comprised so that it may be comprised. The bathtub remaining hot water utilization system in any one of Claims 1-4 characterized by the above-mentioned.