JP3554574B2

JP3554574B2 - Heating / bath combined device and heating operation method of the device

Info

Publication number: JP3554574B2
Application number: JP27301893A
Authority: JP
Inventors: 清福澤; 順裕土屋; 良彦田中; 武明川口
Original assignee: 株式会社ガスター
Priority date: 1993-10-05
Filing date: 1993-10-05
Publication date: 2004-08-18
Anticipated expiration: 2019-08-18
Also published as: JPH07103496A

Description

【０００１】
【産業上の利用分野】
本発明は、室内暖房と風呂の追い焚き機能とを備えた暖房風呂兼用装置およびその装置の暖房運転方法に関するものである。
【０００２】
【従来の技術】
図７および図９には従来の一般的な暖房風呂兼用装置の模式構成が示されている。図７に示す装置において、浴槽１に追い焚き循環ポンプ２を組み込んだ追い焚き循環管路３が接続されている。この追い焚き循環管路３には注湯管４の出口側が連通接続され、注湯管４の入口側は電磁弁等の注湯弁５を介して給湯器６の給湯管７に接続されており、給湯器６の給湯熱交換器８で作り出した湯を注湯弁５を開いて追い焚き循環管路３に導き、この追い焚き循環管路３から浴槽１内に湯張りが可能となっている。
【０００３】
前記追い焚き循環管路３には水−水熱交換器１０が設けられており、この水−水熱交換器１０の熱源タンク１１は暖房循環管路１２に組み込まれている。この暖房循環管路には、加熱手段として機能する加熱熱交換器１３と、暖房熱交換器１４と、リザーブタンク９と、暖房循環ポンプ１５が組み込まれている。前記加熱熱交換器１３の近傍にはバーナ１６が設けられ、このバーナ１６の燃焼火力でもって暖房循環管路１２を還流する熱媒体を加熱するようになっており、また、暖房熱交換器１４の近傍にはファン１７が設けられ、このファン１７の回転により暖房熱交換器１４の熱を室内に導いて室内暖房が行われるようになっている。
【０００４】
浴槽１に湯張りされた湯水の追い焚きを行うときには、追い焚き循環ポンプ２をポンプ駆動して追い焚き循環管路３を通して浴槽湯水を循環し、この循環湯水が水−水熱交換器１０の熱源タンク１１内を通るときに熱源タンク１１の熱媒体から熱を奪って湯水温度を高め、浴槽湯水の追い焚きが行われる。
【０００５】
一方、図９に示す装置は実開昭６０−４８０１３号公報に開示されているもので、追い焚き熱交換器１８側の管路と浴槽１側の管路と暖房熱交換器１４側の管路を三方弁９ａ，９ｂを介して接続している。この装置では、風呂の追い焚きを行うときには、追い焚き熱交換器１８側と浴槽１側の管路を接続し、追い焚き循環ポンプ２を駆動して、浴槽１の湯水を追い焚き熱交換器１８に循環供給することにより行われる。また、暖房運転に際しては、浴槽１内の湯の温度が高いうちは浴槽１側と暖房熱交換器１４側の管路を接続し、暖房循環ポンプ１５を駆動して浴槽１の湯を暖房熱交換器１４に通して循環させることにより行い、浴槽の湯が冷えたときには追い焚き熱交換器１８側と暖房熱交換器１４側の管路を接続し、追い焚き熱交換器１８で加熱した湯を暖房熱交換器１４に循環供給することにより行われる。
【０００６】
【発明が解決しようとする課題】
しかしながら、従来の図７に示す装置では、浴槽湯水の追い焚きを行うときには熱源タンク１１内の熱媒体の温度を高めなければならないため、暖房運転を共に行わなければならず、非常に不便であり、燃料コストの無駄があった。
【０００７】
このような不便を解消するために、図８に示すように、加熱熱交換器１３を追い焚き用の熱交換器として使用し、水−水熱交換器１０を暖房用の加熱源として使用することもできるが、そうすると、暖房を行うときには、必ず浴槽１内に湯を張っておかなければならないという不便が生じる。
【０００８】
また、図９に示す装置においては、風呂側の汚水が暖房側の管路に入り込み、浴槽内の髪の毛等が暖房循環ポンプ１５や暖房熱交換器１４に絡み付く等して暖房運転に支障を来すという問題が生じる。
【０００９】
本発明は上記課題を解決するためになされたものであり、その目的は、暖房運転と切り離して浴槽湯水の追い焚きを行うことができ、しかも、浴槽に湯を張っていなくとも暖房運転を行うことができるとともに、風呂側の汚水によって暖房側に支障を来すことがない暖房風呂兼用装置およびその装置の暖房運転方法を提供することにある。
【００１０】
【課題を解決するための手段】
本発明は上記目的を達成するために、次のように構成されている。すなわち、本発明の暖房風呂兼用装置は、追い焚き熱交換器を共通加熱源として風呂側の追い焚き循環管路と暖房側の暖房循環管路が設けられ、追い焚き熱交換器の入口側および出口側には追い焚き循環管路と暖房循環管路の流路切り換えを行う流路切り換え弁が設けられ、また、暖房循環管路に洗浄用作動弁が設けられ、この洗浄用作動弁と追い焚き熱交換器との間の管路には注湯管の出口側が接続され、注湯管の入口側は給湯器の給湯管に接続され、注湯管には注湯弁が介設されていることを特徴として構成されている。
【００１１】
また、本発明の第１の暖房風呂兼用装置の暖房運転方法は、追い焚き熱交換器を共通加熱源として風呂側の追い焚き循環管路と暖房側の暖房循環管路が設けられ、追い焚き熱交換器の入口側および出口側には追い焚き循環管路と暖房循環管路の流路切り換えを行う流路切り換え弁が設けられ、また、追い焚き循環管路に洗浄用作動弁が設けられ、この洗浄用作動弁と追い焚き熱交換器との間の管路には注湯管の出口側が接続され、注湯管の入口側は給湯器の給湯管に接続され、注湯管には注湯弁が介設されている暖房風呂兼用装置；の暖房運転方法において、風呂使用後に暖房運転を行う場合には、流路切り換え弁の追い焚き循環管路への切り換え動作を行い、洗浄用作動弁の逆止閉作動状態で、注湯弁を開いて給湯器からきれいな水を追い焚き熱交換器を通し追い焚き熱交換器を含む通水管路内の洗浄を行い、この管路洗浄の後に注湯弁の閉動作と流路切り換え弁の暖房循環管路への切り換え動作を行い、暖房循環管路の通水循環を可能にした状態で暖房動作を開始することを特徴として構成されている。
【００１２】
さらに、本発明の第２の暖房風呂兼用装置の暖房運転方法は、追い焚き熱交換器を共通加熱源として風呂側の追い焚き循環管路と暖房側の暖房循環管路が設けられ、追い焚き熱交換器の入口側および出口側には追い焚き循環管路と暖房循環管路の流路切り換えを行う流路切り換え弁が設けられ、また、暖房循環管路に洗浄用作動弁が設けられ、この洗浄用作動弁と追い焚き熱交換器との間の管路には注湯管の出口側が接続され、注湯管の入口側は給湯器の給湯管に接続され、注湯管には注湯弁が介設されている暖房風呂兼用装置；の暖房運転方法において、風呂使用後に暖房運転を行う場合には、流路切り換え弁の追い焚き循環管路への切り換え動作を行い、洗浄用作動弁の逆止閉作動状態で、注湯弁を開いて給湯器からきれいな水を追い焚き熱交換器を通し追い焚き熱交換器を含む通水管路内の洗浄を行い、この管路洗浄の後に注湯弁の閉動作と流路切り換え弁の暖房循環管路への切り換え動作を行い、暖房循環管路の通水循環を可能にした状態で暖房動作を開始することを特徴として構成されている。
【００１３】
【作用】
上記構成の本発明において、流路切り換え弁を追い焚き循環管路側に切り換えて追い焚き循環管路内の浴槽湯水を循環加熱することにより、浴槽湯水の追い焚きが行われる。
【００１４】
また、流路切り換え弁を暖房循環管路側に切り換え、暖房循環管路に熱媒体としての湯水を循環させ、追い焚き熱交換器でその循環湯水を加熱することにより、循環熱媒体が加熱され、その加熱媒体の熱が室内に送り込まれることで、室内暖房が行われる。
【００１５】
本発明では浴槽湯水の追い焚きを行った後、室内暖房を行うときには、流路切り換え弁を追い焚き循環管路側にした状態で、給湯器側からきれいな水（湯を含む）を追い焚き循環管路を通して、追い焚き熱交換器を含む通水管路内を洗浄し、その後で、流路切り換え弁を暖房循環管路側に切り換えて暖房運転を行うので、浴槽湯水の追い焚きにより追い焚き熱交換器に残っていた風呂側の汚水が暖房循環管路に入り込むことがなくなり、風呂側の汚水中の髪の毛等が暖房循環管路中の弁等に絡み付いて暖房運転に支障を来すということもなくなる。
【００１６】
【実施例】
以下、本発明の実施例を図面に基づいて説明する。なお、以下の実施例の説明において、従来例と同一の名称部分には同一符号を付し、その重複説明は省略する。
【００１７】
図１には本発明の第１の実施例を示す暖房風呂兼用装置の構成が示されている。同図において、浴槽１には追い焚き循環管路３が接続されており、この追い焚き循環管路３には追い焚き循環ポンプ２と追い焚き熱交換器１８とが組み込まれており、追い焚き熱交換器１８はバーナ１６により加熱されるようになっている。追い焚き循環管路３の戻り管２１には洗浄用作動弁として機能する電磁弁等の開閉弁２２が介設されており、追い焚き循環ポンプ２の吐出側から追い焚き熱交換器１８の入口側に至る管路には逆止弁２３が介設されている。この逆止弁２３と追い焚き循環ポンプ２間の管路には注湯管４の出口側が連通接続され、注湯管４の入口側は注湯弁５を介して給湯器６の給湯管７に接続され、給湯器側から追い焚き循環管路３を通して浴槽１に湯張りが可能となっている。
【００１８】
追い焚き循環管路３の往管２４の浴槽近傍側には三方弁２５が設けられており、この三方弁２５の弁切り換えにより、追い焚き熱交換器１８から供給されてくる湯水を浴槽側と排水管２６側に切り換え可能となっている。
【００１９】
本実施例において特徴的なことは、追い焚き循環管路３の追い焚き熱交換器１８を共通加熱源として暖房循環管路１２が形成されていることである。この暖房循環管路１２には暖房熱交換器１４とリザーブタンク９と暖房循環ポンプ１５が組み込まれており、暖房循環ポンプ１５の吐出側と追い焚き熱交換器１８の入口側に至る管路には電磁弁２７が介設されている。また、暖房熱交換器１４の近傍には該暖房熱交換器１４の熱を室内に送り込むファン１７が設けられている。
【００２０】
追い焚き熱交換器１８の入口側と出口側には追い焚き循環管路３と暖房循環管路１２の流路を切り換えるための流路切り換え弁２８，２９が三方弁を用いて設けられている。
【００２１】
これら、各弁５，２２，２５，２７，２８，２９と、循環ポンプ２，１５の各動作と、ファン１７の回転やバーナ１６の燃焼運転の動作は制御装置３０により制御されている。この制御装置３０にはシーケンスプログラムが予め与えられており、このプログラムに従い、追い焚き運転および暖房運転を行っており、この制御装置３０には追い焚き運転や暖房運転を指令するリモコン３１が接続されている。
【００２２】
この実施例の装置により浴槽湯水の追い焚きを行う場合には、開閉弁２２を開け、流路切り換え弁２８，２９を追い焚き循環管路側に切り換え、さらに、三方弁２５を浴槽側に切り換えた後、追い焚き循環ポンプ２を駆動し、浴槽湯水を追い焚き循環管路３を通して循環させる。その一方で、バーナ１６を燃焼し、追い焚き熱交換器１８を通る循環湯水を加熱することにより浴槽湯水は所望の設定温度に追い焚きされる。
【００２３】
風呂の使用後、浴槽湯水を排水し、室内暖房を行うときには、まず、三方弁２５を排水管２６側に切り換え、開閉弁２２と電磁弁２７を閉じ、流路切り換え弁２８，２９を追い焚き循環管路側にしたまま注湯弁５を開けて給湯器６側からきれいな水（湯を含む）を注湯管４を通して追い焚き循環管路３側に送り込む。そうすると、このきれいな水は逆止弁２３側から流路切り換え弁２８、追い焚き熱交換器１８、流路切り換え弁２９を順に通り、往管２４を介して三方弁２５から排水管２６を通って外に排水される。このように、給湯器６側からきれいな水を通水することにより、追い焚き熱交換器１８を含む追い焚き循環管路３内の通水管路がきれいに洗浄され、追い焚き時の汚水は排水管２６から排出される。
【００２４】
この管路洗浄を行った後、注湯弁５を閉じ、電磁弁２７を開け、流路切り換え弁２８，２９を暖房循環管路側に切り換えて、暖房循環ポンプ１５を回転駆動することにより、暖房循環管路１２内の湯水は暖房循環管路１２内を循環し、この循環湯水が追い焚き熱交換器１８を通るときに加熱されることで高温の湯となり、この湯が暖房熱交換器１４を通ることで、暖房熱交換器１４の保有熱量が高められる。この暖房熱交換器１４の保有熱量はファン１７の回転により暖気となって室内に導かれ、室内の暖房が行われる。
【００２５】
本実施例によれば、追い焚き熱交換器１８を追い焚きと暖房の共通の加熱源として兼用し、流路切り換え弁２８，２９により追い焚き循環管路３と暖房循環管路１２との流路切り換えが行われるので、暖房運転と追い焚き運転を別個独立に行うことができ、従来例の図７の装置の問題点、つまり、追い焚き運転を行うときには暖房運転を必ず行わなければならないという不便を解消することができる。
【００２６】
また、本実施例では、流路切り換え弁２８，２９により追い焚き循環管路３と暖房循環管路１２の切り換えを行うので、浴槽１に湯水が張られていると否とに拘わらず暖房運転を行うことができ、使用上非常に便利である。
【００２７】
さらに、本実施例では、風呂の使用後暖房運転を行うときには追い焚き熱交換器１８を含む追い焚き循環管路内を給湯器側からのきれいな水によって通水洗浄し、その後に暖房運転を行うので、追い焚き熱交換器１８を暖房用の加熱源として共通使用しても、風呂使用時の汚水が暖房循環管路内に入り込むことがない。したがって、暖房循環管路内が風呂汚水によって汚されるということがなく、非常に衛生的であり、また、風呂使用時の髪の毛等が暖房熱交換器１４内や暖房循環ポンプ１５内に絡みついて暖房運転上支障を来すということもない。
【００２８】
図２には本発明の第２の実施例が示されている。この第２の実施例が前記第１の実施例と異なる特徴的なことは、追い焚き熱交換器１８の入口側と流路切り換え弁２８との間に追い焚き循環のポンプと暖房循環のポンプを兼ねる共通の循環ポンプ３２を追い焚き熱交換器１８と一体にユニット化して設けたことである。このように、１台のポンプ３２で追い焚き循環と暖房循環を行うようにすることで、前記第１の実施例では２台必要であった循環ポンプ２，１５を１台のポンプで足りることとなるので、装置構成の簡易化と小型化が可能となり、装置の組立施工作業も容易化されることとなり、装置および施工の大幅なコスト低減を図ることが可能となる。
【００２９】
図３には本発明の第３の実施例が示されている。この実施例が前記第１、第２の各実施例と異なる特徴的なことは、暖房循環ポンプ１５と流路切り換え弁２８との間の暖房循環管路１２に開閉弁２２を介設し、この開閉弁２２と流路切り換え弁２８間に注湯管４の出側を接続したことと、前記第１、第２の実施例の浴槽１近傍に設けた三方弁２５を省略したことである。なお、図中、３３は電磁弁、３５は三方弁、３６はバイパス流路をそれぞれ示している。また、図中のＢＶは、通常は閉状態にあるが、ある一定圧力がかかると開となるブローバルブを示している。
【００３０】
この実施例も前記各実施例と同様に、暖房運転を開始するときには、それに先立って開閉弁２２を閉じて給湯器６側からの湯水を、注湯管４を介して追い焚き循環管路に通水することで、通水管路の洗浄が行われ、この洗浄後に暖房運転へ移行することとなる。
【００３１】
この実施例では、図１、図２に示すシステム中の前記三方弁２５を省略したので、装置の設置施工が容易になることと、従来から設置されている器具（例えば風呂釜）を新たに購入した器具と交換するような場合、新たな配線管路を増設する必要がないので、浴室への新たな配線工事ができないという制約があるような場合等に非常に有利となる（三方弁を浴室に設置すると、浴室と器具間の配線工事が必要になる）。
【００３２】
図４は複数部屋の切り換え暖房システムの一例を示したもので、各室ごとに、暖房熱交換器１４と該暖房熱交換器１４に通じる通路の開閉を行なう暖房切換弁３６とを配設し、これらの暖房切換弁３６を開閉することにより各室の暖房切り換えが行なわれる。全室の暖房切換弁３６が閉の場合、暖房循環ポンプ１５の振動が大きくなるが、これを避けるため、この実施例ではバイパス通路３７を設けてある。リザーブタンク９は暖房循環管路１２内の熱媒体（この実施例では水）の膨張による体積変化を緩和調節する働きをしている。
【００３３】
なお、本発明は上記各実施例に限定されることはなく、様々な実施の態様を採り得る。例えば、上記第１、第２の各実施例では暖房循環管路１２内に電磁弁２７を設けたが、この電磁弁２７は逆止弁でもかまわないし又は省略してもよい。また、逆止弁２３は電磁弁でもかまわないし又は省略してもよい。
【００３４】
また、各実施例では流路切り換え弁２８，２９を三方弁により構成したが、三方弁以外の構成としてもよく、例えば、追い焚き熱交換器１８の入口側と出口側のそれぞれの暖房側の管路と追い焚き側の管路に電磁弁等の開閉弁を設け、これを流路切り換え弁としてもよい。同様に、浴槽側と排水管２６側の流路を切り換える弁を三方弁２５以外の他の構成の弁としてもよいし、三方弁２５、排水管２６を設けず浴槽内に排水するようにしてもよい。また、三方弁２５、排水管２６や図３で示される逆止弁ＢＶによる排水部は、浴室内に設けてもよいし、器具内に設けても構わず、取り付け場所は限定されるものではない。
【００３５】
さらに、第１、第２の各実施例では追い焚き循環管路３の戻り管２１側に開閉弁２２を設け、戻り管２１側に注湯管４を接続したが、これとは異なり、例えば図５および図６で示すように往管２４側に開閉弁２２を設け、往管２４側に注湯管４を接続するようにしてもよい。
【００３６】
さらに、図５および図６で示される三方弁２５、排水管２６は、図３で示される逆止弁２３とＢＶにより構成しても構わない。同様に、図３で示される逆止弁２３とＢＶは三方弁２５、排水管２６で構成されていても構わない（戻り管２１に取り付けられる場合、逆止弁２３とＢＶは三方弁２５と排水管２６と同等となる）。
【００３７】
さらに、図３では、ポンプ２，１５を２台用いているが、図２に示す第２の実施例と同様にこれをポンプ１台としても構わない。また、図２の例では、このポンプは追い焚き熱交換器１８と流路切り換え弁２８間にあるが、追い焚き熱交換器１８と流路切り換え弁２９間にあっても構わない。
【００３８】
さらに、図３では、流路切り換え弁２８側の暖房循環路１２に開閉弁２２を介設したが、これを流路切り換え弁２９側に介設しても構わない。この場合、三方弁３５、電磁弁３３、バイパス路３６が省略される（図１０）。この場合も同様に、逆止弁２３とＢＶは三方弁２５、排水管２６で構成されても構わないし、また、ポンプ２台を１台としても構わない。
【００３９】
さらに、上記各実施例では洗浄用作動弁を開閉弁２２で構成したが、この洗浄用作動弁は通水作動状態でポンプ駆動による熱媒体（実施例では水）を弁開状態で通し、注湯管４からの通水による管路洗浄時の逆止閉作動状態で注湯管４からの水を追い焚き熱交換器１８側へ導き、逆方向への流れは弁閉状態で阻止する機能を有するものであればよく、逆止弁等の他の構成の弁であってもよい。
【００４０】
【発明の効果】
本発明は追い焚き熱交換器を共通の加熱源として追い焚き循環管路と暖房循環管路を形成し、この追い焚き循環管路と暖房循環管路を追い焚き熱交換器の入口側および出口側で流路切り換え弁により切り換えるように構成したので、追い焚き運転と暖房運転を別個独立に行うことができ、追い焚き運転を行うときには常に暖房運転も一緒に行わなければならないという従来の不都合を解消することができる。
【００４１】
また、風呂使用後に暖房運転を行うときには、給湯器側のきれいな水を追い焚き熱交換器を含む追い焚き循環管路に通水して管路洗浄を行った後に暖房運転を行うようにしたので、追い焚き熱交換器を追い焚き用と暖房用に共有しても、追い焚き時の風呂汚水が暖房運転時に暖房循環管路に入り込むことがなく好都合である。
【図面の簡単な説明】
【図１】本発明に係る暖房風呂兼用装置の第１の実施例を示すシステム構成図である。
【図２】本発明装置の第２の実施例を示すシステム構成図である。
【図３】本発明の第３の実施例を示すシステム構成図である
【図４】複数部屋暖房のシステム例の説明図である。
【図５】他の実施例のシステム構成図である。
【図６】さらに他の実施例のシステム構成図である。
【図７】従来の一般的な暖房風呂兼用装置のシステム図である。
【図８】図７のシステムの変形例を示す説明図である。
【図９】暖房風呂兼用装置の他の従来例を示すシステム図である。
【図１０】本発明のさらに他の実施例の説明図である。
【符号の説明】
３追い焚き循環管路
６給湯器
１２暖房循環管路
１５暖房循環ポンプ
１８追い焚き熱交換器
２２開閉弁
２８，２９流路切り換え弁[0001]
[Industrial applications]
The present invention relates to a heating / bath combined device having indoor heating and a bath reheating function, and a heating operation method of the device.
[0002]
[Prior art]
7 and 9 show a schematic configuration of a conventional general heating and bathing apparatus. In the apparatus shown in FIG. 7, a reheating cycle line 3 in which a reheating circulation pump 2 is incorporated is connected to a bathtub 1. An outlet side of the pouring pipe 4 is connected to the additional heating circulation line 3, and an inlet side of the pouring pipe 4 is connected to a hot water pipe 7 of a water heater 6 via a pouring valve 5 such as a solenoid valve. The hot water produced by the hot water supply heat exchanger 8 of the hot water supply 6 is opened to the pouring valve 5 and guided to the additional heating circulation line 3, and the hot water can be filled in the bathtub 1 from the additional heating circulation line 3. ing.
[0003]
A water-water heat exchanger 10 is provided in the reheating circuit 3, and a heat source tank 11 of the water-water heat exchanger 10 is incorporated in a heating circulation line 12. A heating heat exchanger 13 functioning as a heating means, a heating heat exchanger 14, a reserve tank 9, and a heating circulation pump 15 are incorporated in the heating circulation pipe. A burner 16 is provided in the vicinity of the heating heat exchanger 13 so as to heat the heat medium flowing back through the heating circulation line 12 by the combustion thermal power of the burner 16. A fan 17 is provided in the vicinity of, and the rotation of the fan 17 guides the heat of the heating heat exchanger 14 into the room to perform room heating.
[0004]
When reheating the hot water filled in the bathtub 1, the reheating circulation pump 2 is driven by pumping to circulate the bathwater through the reheating circulation line 3, and the circulated hot water is supplied to the water-water heat exchanger 10. When passing through the inside of the heat source tank 11, heat is taken from the heat medium in the heat source tank 11 to increase the temperature of the hot water, and the reheating of the bath water is performed.
[0005]
On the other hand, the apparatus shown in FIG. 9 is disclosed in Japanese Utility Model Laid-Open Publication No. 60-48013, and includes a pipe on the side of the reheating heat exchanger 18, a pipe on the side of the bathtub 1, and a pipe on the side of the heating heat exchanger 14. The paths are connected via three-way valves 9a, 9b. In this apparatus, when reheating a bath, the reheating heat exchanger 18 is connected to the pipeline on the side of the bathtub 1, and the reheating circulation pump 2 is driven to reheat the water in the bathtub 1. 18 by circulating the feed. During the heating operation, while the temperature of the hot water in the bathtub 1 is high, the bathtub 1 and the heating heat exchanger 14 are connected to each other, and the heating circulation pump 15 is driven to heat the hot water in the bathtub 1. It is performed by circulating through the heat exchanger 14, and when the hot water in the bathtub is cooled, the pipe line of the reheating heat exchanger 18 and the heating heat exchanger 14 is connected, and the hot water heated by the reheating heat exchanger 18 is connected. Is supplied to the heating heat exchanger 14 by circulation.
[0006]
[Problems to be solved by the invention]
However, in the conventional apparatus shown in FIG. 7, since the temperature of the heat medium in the heat source tank 11 must be increased when reheating the bath water, the heating operation must be performed together, which is very inconvenient. There was a waste of fuel costs.
[0007]
In order to eliminate such inconvenience, as shown in FIG. 8, the heating heat exchanger 13 is used as a heat exchanger for reheating, and the water-water heat exchanger 10 is used as a heating source for heating. However, when heating is performed, there is an inconvenience that hot water must be kept in the bathtub 1.
[0008]
Further, in the apparatus shown in FIG. 9, sewage on the bath side enters the duct on the heating side, and hair in the bathtub gets entangled with the heating circulating pump 15 and the heating heat exchanger 14, thereby hindering the heating operation. Problem arises.
[0009]
The present invention has been made in order to solve the above-described problems, and an object thereof is to perform reheating of a bathtub hot water separately from a heating operation, and to perform a heating operation without hot water in a bathtub. Another object of the present invention is to provide a combined heating / bath apparatus and a heating operation method for the apparatus, which can prevent the heating side from being disturbed by sewage on the bath side.
[0010]
[Means for Solving the Problems]
The present invention is configured as follows to achieve the above object. In other words, warm bunch bath compatible apparatus of the present invention, heater circulation conduit between the bath side of the reheating circulation pipe heating side is provided a reheating heat exchanger as a common heat source, the inlet side of the reheating heat exchanger On the outlet side, a flow path switching valve for switching the flow path between the reheating circulation line and the heating circulation line is provided, and a cleaning operation valve is provided on the heating circulation line. The outlet side of the pouring pipe is connected to the pipe line between the reheating heat exchanger, the inlet side of the pouring pipe is connected to the hot water pipe of the water heater, and the pouring valve is provided in the pouring pipe. It is characterized by having.
[0011]
Further, the first heating operation method of the combined heating / bath apparatus of the present invention is characterized in that a reheating steam line on the bath side and a heating circulation line on the heating side are provided using the reheating heat exchanger as a common heating source. On the inlet side and the outlet side of the heat exchanger, a flow path switching valve for switching the flow path between the reheating circulation pipe and the heating circulation pipe is provided, and an operation valve for cleaning is provided on the reheating circulation pipe. An outlet side of the pouring pipe is connected to a pipe line between the cleaning operation valve and the additional heat exchanger, and an inlet side of the pouring pipe is connected to a hot water pipe of the hot water supply apparatus. When the heating operation is performed after using the bath in the heating operation method of the heating / bath combined device in which the injection valve is interposed , the operation of switching the flow path switching valve to the reheating circuit is performed. Open the pouring valve and check for clean water from the water heater with the check valve closed. After cleaning the inside of the water pipe including the reheater, the closing operation of the pouring valve and the switching operation of the flow switching valve to the heating circulation pipe are performed. The heating operation is started in a state where the water circulation of the heating circulation pipe is enabled .
[0012]
Further, in the second heating operation method of the combined heating / bath apparatus of the present invention, the reheating steam exchanger is provided with a reheating steam circulation line on the bath side and a heating circulation line on the heating side using the reheating heat exchanger as a common heating source. On the inlet side and the outlet side of the heat exchanger, a flow path switching valve for switching the flow path of the reheating line and the heating circulation line is provided, and a cleaning operation valve is provided on the heating circulation line, An outlet side of a pouring pipe is connected to a pipe line between the cleaning operation valve and the reheating heat exchanger, an inlet side of the pouring pipe is connected to a hot water pipe of a water heater, and a pouring pipe is connected to the pouring pipe. When the heating operation is performed after using the bath in the heating operation method of the heating / bath combined device in which the hot water valve is interposed , the switching operation of the flow path switching valve to the reheating circuit is performed, and the cleaning operation is performed. When the valve is in the non-return operation, open the pouring valve to purify clean water from the water heater. Through the heat exchanger, the inside of the water pipe including the reheating heat exchanger is washed, and after this pipe washing, the closing operation of the pouring valve and the switching operation of the flow path switching valve to the heating circulation pipe are performed. The heating operation is started in a state where the water circulation of the heating circulation pipe is enabled.
[0013]
[Action]
In the present invention having the above-described structure, the reheating of the bathtub hot water is performed by switching the flow path switching valve to the reheating heating circulation pipe side to circulate and heat the bathtub hot water in the reheating heating circulation pipe.
[0014]
Further, the circulation heat medium is heated by switching the flow path switching valve to the heating circulation pipe side, circulating hot water as a heat medium in the heating circulation pipe, and heating the circulating hot water with a reheating heat exchanger, The indoor heating is performed by sending the heat of the heating medium into the room.
[0015]
In the present invention, when the indoor heating is performed after the reheating of the bathtub hot water, the clean water (including hot water) is recirculated from the water heater while the flow path switching valve is on the recirculation circulation pipe side. After washing the inside of the water flow conduit including the reheating heat exchanger through the channel, and then performing the heating operation by switching the flow path switching valve to the heating circulation pipeline side, the reheating heat exchanger by reheating the bathtub hot water The sewage on the bath side remaining in the sewage no longer enters the heating circulation pipe, and the hair in the sewage on the bath side does not become entangled with the valves in the heating circulation pipe and hinder the heating operation. .
[0016]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments, the same reference numerals are given to the same names as those in the conventional example, and the overlapping description will be omitted.
[0017]
FIG. 1 shows the configuration of a combined heating / bath apparatus according to a first embodiment of the present invention. In this figure, a reheating circuit 3 is connected to a bathtub 1, and a reheating circulation pump 2 and a reheating heat exchanger 18 are incorporated in the reheating circuit 3. The heat exchanger 18 is heated by the burner 16. An opening / closing valve 22 such as an electromagnetic valve functioning as a cleaning operation valve is interposed in the return pipe 21 of the reheating circulation line 3, and an inlet of the reheating heat exchanger 18 is provided from the discharge side of the reheating circulation pump 2. A check valve 23 is interposed in the pipe leading to the side. The outlet side of the pouring pipe 4 is connected in communication with the pipe between the check valve 23 and the reheating pump 2, and the inlet side of the pouring pipe 4 is connected via the pouring valve 5 to the hot water supply pipe 7 of the water heater 6. And the bathtub 1 can be filled with hot water from the water heater side through the additional heating circulation pipe 3.
[0018]
A three-way valve 25 is provided near the bathtub of the forward pipe 24 of the reheating circuit 3. By switching the three-way valve 25, the hot water supplied from the reheating heat exchanger 18 is connected to the bathtub side. It is possible to switch to the drain pipe 26 side.
[0019]
What is characteristic in this embodiment is that the heating circulation pipe 12 is formed by using the reheating heat exchanger 18 of the reheating circulation pipe 3 as a common heating source. A heating heat exchanger 14, a reserve tank 9, and a heating circulation pump 15 are incorporated in the heating circulation pipe 12, and a pipe extending from the discharge side of the heating circulation pump 15 to the inlet side of the reheating heat exchanger 18 is provided. Is provided with an electromagnetic valve 27. In the vicinity of the heating heat exchanger 14, a fan 17 for sending the heat of the heating heat exchanger 14 into the room is provided.
[0020]
On the inlet side and the outlet side of the reheating heat exchanger 18, flow switching valves 28 and 29 for switching the flow paths of the reheating circulation pipe 3 and the heating circulation pipe 12 are provided using three-way valves. .
[0021]
The operation of the valves 5, 22, 25, 27, 28, 29, the circulation pumps 2, 15 and the operation of the rotation of the fan 17 and the combustion operation of the burner 16 are controlled by the control device 30. The control device 30 is provided with a sequence program in advance, and performs a reheating operation and a heating operation according to the program. A remote controller 31 for instructing the reheating operation and the heating operation is connected to the control device 30. ing.
[0022]
In the case of performing reheating of the bathtub hot water by the apparatus of this embodiment, the on-off valve 22 was opened, the flow path switching valves 28 and 29 were switched to the reheating boiler circulation side, and the three-way valve 25 was switched to the bathtub side. Thereafter, the reheating circulation pump 2 is driven to circulate the bath water through the reheating circulation pipe 3. On the other hand, the bathtub hot water is reheated to a desired set temperature by burning the burner 16 and heating the circulating hot water passing through the reheating heat exchanger 18.
[0023]
When the bathtub is drained after using the bath and the room is heated, first, the three-way valve 25 is switched to the drain pipe 26 side, the on-off valve 22 and the electromagnetic valve 27 are closed, and the flow path switching valves 28 and 29 are reheated. The pouring valve 5 is opened while keeping the circulation pipe side, and clean water (including hot water) is supplied from the water heater 6 side through the pouring pipe 4 and sent to the circulation pipe 3 side. Then, this clean water passes from the check valve 23 side through the flow path switching valve 28, the reheating heat exchanger 18, and the flow path switching valve 29, and from the three-way valve 25 to the drain pipe 26 through the outgoing pipe 24. Drained outside. In this way, by passing clean water from the water heater 6 side, the water passage in the reheating circulation line 3 including the reheating heat exchanger 18 is cleanly cleaned, and the sewage at the time of reheating is drained. Discharged from 26.
[0024]
After performing the pipe washing, the pouring valve 5 is closed, the solenoid valve 27 is opened, the flow path switching valves 28 and 29 are switched to the heating circulation pipe side, and the heating circulation pump 15 is rotationally driven. The hot and cold water in the circulation pipeline 12 circulates in the heating circulation pipeline 12, and is heated when the circulating hot and cold water passes through the follow-up heat exchanger 18 to become high-temperature hot water. , The amount of heat held by the heating heat exchanger 14 is increased. The amount of heat held by the heating heat exchanger 14 is turned into warm air by the rotation of the fan 17 and guided into the room, thereby heating the room.
[0025]
According to this embodiment, the reheating heat exchanger 18 is also used as a common heating source for reheating and heating, and the flow between the reheating circulation line 3 and the heating circulation line 12 is controlled by the flow path switching valves 28 and 29. Since the road switching is performed, the heating operation and the reheating operation can be performed separately and independently, which is a problem of the conventional apparatus of FIG. 7, that is, the heating operation must be performed when the reheating operation is performed. Inconvenience can be eliminated.
[0026]
Further, in the present embodiment, the switching between the reheating circulation line 3 and the heating circulation line 12 is performed by the flow path switching valves 28 and 29, so that the heating operation is performed regardless of whether the bathtub 1 is filled with hot or cold water. Can be done and very convenient in use.
[0027]
Furthermore, in the present embodiment, when performing the heating operation after using the bath, the inside of the reheating steam circulation line including the reheating heat exchanger 18 is washed with clean water from the water heater side, and then the heating operation is performed. Therefore, even if the reheating heat exchanger 18 is commonly used as a heating source for heating, sewage during bath use does not enter the heating circulation pipe. Therefore, the inside of the heating circulation pipe is not polluted by the bath sewage, and it is very sanitary. Moreover, the hair and the like at the time of using the bath are entangled in the heating heat exchanger 14 and the heating circulation pump 15 to heat the heating. There is no trouble in driving.
[0028]
FIG. 2 shows a second embodiment of the present invention. The second embodiment is different from the first embodiment in that a pump for reheating circulation and a pump for heating circulation are provided between the inlet side of the reheating heat exchanger 18 and the flow path switching valve 28. That is, a common circulation pump 32 serving also as a unit is provided integrally with the reheater 18. In this way, by performing the reheating circulation and the heating circulation with one pump 32, the circulation pumps 2 and 15 that were required in the first embodiment can be reduced to one pump. Therefore, the simplification and downsizing of the device configuration can be achieved, the assembly and construction work of the device can be facilitated, and the cost of the device and the construction can be greatly reduced.
[0029]
FIG. 3 shows a third embodiment of the present invention. This embodiment is different from the first and second embodiments in that an on-off valve 22 is provided in the heating circulation line 12 between the heating circulation pump 15 and the flow path switching valve 28, The outlet side of the pouring pipe 4 is connected between the on-off valve 22 and the flow path switching valve 28, and the three-way valve 25 provided near the bathtub 1 in the first and second embodiments is omitted. . In the drawing, reference numeral 33 denotes an electromagnetic valve, 35 denotes a three-way valve, and 36 denotes a bypass flow path. BV in the figure indicates a blow valve that is normally closed but opens when a certain pressure is applied.
[0030]
In this embodiment, similarly to the above embodiments, when the heating operation is started, the on-off valve 22 is closed prior to the start of the heating operation, and the hot water from the water heater 6 is supplied to the reheating circuit via the pouring pipe 4. By passing water, the water pipe is washed, and after this washing, the operation shifts to the heating operation.
[0031]
In this embodiment, since the three-way valve 25 in the system shown in FIGS. 1 and 2 is omitted, the installation and construction of the apparatus is facilitated, and a conventionally installed appliance (for example, a bath kettle) is newly added. In the case of replacement with purchased equipment, it is not necessary to add a new wiring conduit, so it is very advantageous when there is a restriction that new wiring work to the bathroom cannot be performed (three-way valve is required). Installation in a bathroom requires wiring work between the bathroom and the appliances.)
[0032]
FIG. 4 shows an example of a switching heating system of a plurality of rooms, in which a heating heat exchanger 14 and a heating switching valve 36 for opening and closing a passage leading to the heating heat exchanger 14 are provided for each room. By opening and closing these heating switching valves 36, the heating of each room is switched. When the heating switching valves 36 of all the rooms are closed, the vibration of the heating circulation pump 15 increases, but in order to avoid this, a bypass passage 37 is provided in this embodiment. The reserve tank 9 has a function of relaxing and adjusting a volume change due to expansion of the heat medium (water in this embodiment) in the heating circulation pipe 12.
[0033]
Note that the present invention is not limited to the above embodiments, and various embodiments can be adopted. For example, in each of the first and second embodiments, the solenoid valve 27 is provided in the heating circulation line 12, but the solenoid valve 27 may be a check valve or may be omitted. Further, the check valve 23 may be an electromagnetic valve or may be omitted.
[0034]
Further, in each embodiment, the flow path switching valves 28 and 29 are configured by three-way valves, but may be configured other than the three-way valves. For example, each of the inlet side and the outlet side of the reheating heat exchanger 18 may be provided on the heating side. An on-off valve such as an electromagnetic valve may be provided in the pipe and the pipe on the reheating side, and this may be used as a flow path switching valve. Similarly, a valve for switching the flow path between the bathtub side and the drain pipe 26 side may be a valve having a configuration other than the three-way valve 25, or the three-way valve 25 and the drain pipe 26 are not provided to drain the water into the bathtub. Is also good. In addition, the drainage part by the three-way valve 25, the drain pipe 26, and the check valve BV shown in FIG. 3 may be provided in the bathroom or may be provided in the appliance, and the mounting place is not limited. Absent.
[0035]
Furthermore, in each of the first and second embodiments, the on-off valve 22 is provided on the return pipe 21 side of the additional heating circulation pipe 3 and the pouring pipe 4 is connected to the return pipe 21 side. As shown in FIGS. 5 and 6, the on-off valve 22 may be provided on the outgoing pipe 24 side, and the pouring pipe 4 may be connected to the outgoing pipe 24 side.
[0036]
Further, the three-way valve 25 and the drain pipe 26 shown in FIGS. 5 and 6 may be constituted by the check valve 23 and the BV shown in FIG. Similarly, the check valve 23 and the BV shown in FIG. 3 may be constituted by a three-way valve 25 and a drain pipe 26 (when attached to the return pipe 21, the check valve 23 and the BV are connected to the three-way valve 25. It is equivalent to the drain pipe 26).
[0037]
Further, in FIG. 3, two pumps 2 and 15 are used. However, as in the second embodiment shown in FIG. 2 , this may be used as one pump. Further, in the example of FIG. 2, this pump is provided between the reheating heat exchanger 18 and the flow path switching valve 28, but may be provided between the reheating heat exchanger 18 and the flow path switching valve 29 .
[0038]
Further, in FIG. 3, the on-off valve 22 is provided on the heating circulation path 12 on the side of the flow path switching valve 28, but this may be provided on the side of the flow path switching valve 29. In this case, the three-way valve 35, the solenoid valve 33, and the bypass 36 are omitted (FIG. 10). Similarly, in this case, the check valve 23 and the BV may be configured by the three-way valve 25 and the drain pipe 26, or two pumps may be used as one.
[0039]
Further, in each of the above embodiments, the cleaning operation valve is constituted by the opening / closing valve 22, but this cleaning operation valve allows the heat medium (water in the embodiment) driven by the pump to pass in the water-opening operation state and the valve to be opened. A function of purging water from the pouring pipe 4 to the heat exchanger 18 side in a check-closed operation state when washing the pipeline by flowing water from the hot water pipe 4 and blocking the flow in the reverse direction with the valve closed. The valve may have another configuration, such as a check valve.
[0040]
【The invention's effect】
The present invention forms a reheating steam line and a heating circulation line by using a reheating heat exchanger as a common heat source, and forms an inlet side and an outlet of the reheating heat exchanger by reheating the reheating line and the heating circulation line. Because the side is switched by the flow path switching valve, the reheating operation and the heating operation can be performed separately and independently, and the conventional disadvantage that the heating operation must always be performed together when performing the reheating operation is eliminated. Can be eliminated.
[0041]
In addition, when performing the heating operation after using the bath, clean water on the water heater side was reheated, and the water was passed through the reheating steam circulation line including the heat exchanger to clean the line. However, even if the reheating heat exchanger is shared for reheating and heating, the bath wastewater during reheating does not enter the heating circulation pipe during the heating operation, which is advantageous.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram showing a first embodiment of a combined heating and bathing apparatus according to the present invention.
FIG. 2 is a system configuration diagram showing a second embodiment of the device of the present invention.
FIG. 3 is a system configuration diagram showing a third embodiment of the present invention. FIG. 4 is an explanatory diagram of an example of a multiple room heating system.
FIG. 5 is a system configuration diagram of another embodiment.
FIG. 6 is a system configuration diagram of still another embodiment.
FIG. 7 is a system diagram of a conventional general heating and bathing apparatus.
FIG. 8 is an explanatory diagram showing a modification of the system in FIG. 7;
FIG. 9 is a system diagram showing another conventional example of a combined heating and bathing apparatus.
FIG. 10 is an explanatory view of still another embodiment of the present invention.
[Explanation of symbols]
3 Reheating circuit 6 Hot water heater 12 Heating circuit 15 Heating circulation pump 18 Reheating heat exchanger 22 Open / close valves 28, 29 Flow switching valve

Claims

With the reheating heat exchanger as a common heating source, a reheating steam circulation line on the bath side and a heating circulation line on the heating side are provided. A flow switching valve for switching the flow path of the circulation pipe is provided, and a cleaning operation valve is provided in the heating circulation pipe, and a pipe between the cleaning operation valve and the reheating heat exchanger is provided. Is a heating / bath combined device in which the outlet side of the pouring pipe is connected, the inlet side of the pouring pipe is connected to the hot water pipe of the water heater, and the pouring pipe is provided with a pouring valve.

With the reheating heat exchanger as a common heating source, a reheating steam circulation line on the bath side and a heating circulation line on the heating side are provided. A flow path switching valve for switching the flow path of the circulation pipe is provided, and a cleaning valve is provided in the reheating circulation pipe. A pipe between the cleaning valve and the reheating heat exchanger is provided. spout side of the hot water pipe is connected to, inlet side of the hot water pipe is connected to the hot water supply pipe of the water heater, the pouring tube pouring valve is heating bath sharing device that is interposed; method of heating operation In the case of performing the heating operation after using the bath, the switching operation of the flow path switching valve to the reheating circuit is performed, and the pouring valve is opened and the water heater is opened in the check closing operation state of the cleaning operation valve. Through the heat exchanger and clean the inside of the water pipe including the heat exchanger. After the line cleaning, the closing operation of the pouring valve and the switching operation of the flow path switching valve to the heating circulation line are performed, and the heating operation is started in a state where the water circulation of the heating circulation line is enabled. A heating operation method for a combined heating and bathing device .

With the reheating heat exchanger as a common heating source, a reheating steam circulation line on the bath side and a heating circulation line on the heating side are provided. A flow switching valve for switching the flow path of the circulation pipe is provided, and a cleaning operation valve is provided in the heating circulation pipe, and a pipe between the cleaning operation valve and the reheating heat exchanger is provided. in the heating operation method; the connection is the outlet side of the pouring tube, inlet side of the hot water pipe is connected to the hot water supply pipe of the water heater, note the hot pipe pouring valve Heating bath sharing device being interposed When the heating operation is performed after using the bath, the switching operation of the flow path switching valve to the additional heating circulation pipe is performed, and in the check closing operation state of the cleaning operation valve, the pouring valve is opened and the water heater is opened. Clean the inside of the water pipe including the reheated heat exchanger through the reheated heat exchanger. After this line washing, the heating operation is performed in a state where the closing operation of the pouring valve and the switching operation of the flow path switching valve to the heating circulation line are performed, and the water circulation of the heating circulation line is enabled. The method of heating operation of the combined bath device.