JP3810187B2 - Circulating pump characteristic data storage method for bath apparatus and bath apparatus using circulating pump characteristic data stored using the method - Google Patents

Circulating pump characteristic data storage method for bath apparatus and bath apparatus using circulating pump characteristic data stored using the method Download PDF

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JP3810187B2
JP3810187B2 JP21603597A JP21603597A JP3810187B2 JP 3810187 B2 JP3810187 B2 JP 3810187B2 JP 21603597 A JP21603597 A JP 21603597A JP 21603597 A JP21603597 A JP 21603597A JP 3810187 B2 JP3810187 B2 JP 3810187B2
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circulation
hot water
flow rate
circulation pump
pump
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JPH1144455A (en
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良彦 田中
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株式会社ガスター
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Description

【0001】
【発明の属する技術分野】
本発明は、浴槽湯水を追い焚き循環通路を通して循環させるための循環ポンプを備えた風呂装置の循環ポンプ特性データ記憶方法およびその方法を用いて記憶した循環ポンプ特性データを利用する風呂装置に関するものである。
【0002】
【従来の技術】
図4には循環ポンプを備えた風呂装置の一例が示されている。この図4に示す風呂装置は、追い焚き等の風呂機能に加えて、給湯や、浴槽の湯張り等の給湯機能を備えた風呂装置であり、追い焚き熱交換器2と、給湯熱交換器10とを器具ケース3内に有し、上記追い焚き熱交換器2と給湯熱交換器10は一体化され、これら一体化した追い焚き熱交換器2と給湯熱交換器10を共通に燃焼加熱するバーナが設けられている一缶二水路タイプのものである。
【0003】
上記追い焚き熱交換器2の一端側には往管11の一端側が接続され、該往管11の他端側は外部配管6を介して浴槽7に連通されている。また、追い焚き熱交換器2の他端側には通路12の一端側が接続され、この通路12の他端側は循環ポンプ14の吐出口側に接続され、循環ポンプ14の吸込口側には戻り管15の一端側が接続され、戻り管15の他端側は外部配管8を介して浴槽7に連通されている。上記往管11と追い焚き熱交換器2と通路12と循環ポンプ14と戻り管15により追い焚き循環通路16が構成されている。
【0004】
上記給湯熱交換器10の一端側には給水通路17の一端側が接続され、給水通路17の他端側は外部配管を介して水供給源に導かれている。さらに、給湯熱交換器10の他端側には給湯通路18の一端側が接続され、給湯通路18の他端側は外部配管を介して台所やシャワー等の給湯場所に導かれている。
【0005】
また、上記給湯通路18と前記往管11を連通する注湯通路20が設けられており、この注湯通路20には通路の開閉を行う注湯制御弁22が介設されていると共に、浴槽7の水位を水圧により検出する水位センサ24が設けられている。上記給湯熱交換器10から注湯通路20との接続部に至るまでの給湯通路18の部分と注湯通路20と追い焚き通路16により湯張り通路が構成されており、この湯張り通路を介して給湯熱交換器10は浴槽7に連通されている。
【0006】
なお、図中に示す25は追い焚き通路16の湯水温を浴槽7の湯水温として検出する風呂温度センサであり、26は給湯熱交換器10により作り出された湯温を検出する出湯サーミスタであり、27は給水通路17の通水流量を検知する水量センサである。
【0007】
この風呂装置には器具運転を制御する制御装置28が設けられており、この制御装置28にはリモコン30が接続され、このリモコン30には、風呂の温度を設定する風呂温度設定手段や、浴槽水位を設定する風呂水位設定手段や、給湯温度を設定する給湯温度設定手段等が設けられている。上記制御装置28には器具運転動作を制御するためのシーケンスプログラムが予め与えられており、制御装置28は水位センサ24等の様々なセンサのセンサ出力の情報や、リモコン30の情報を取り込み、それら取り込んだ情報に基づき上記シーケンスプログラムに従って給湯や湯張りや追い焚き等の器具運転制御を次のように行う。
【0008】
例えば、台所やシャワー等の給湯栓(図示せず)が開けられて、水量センサ27が給水通路17の通水を検知すると、バーナーの燃焼を開始させ、予め定められた給湯設定温度の湯を給湯することができるように燃焼能力を制御し、バーナーの燃焼火炎の熱により給湯熱交換器10の通水を加熱して湯を作り出し、この湯を給湯通路18を通して出湯場所に給湯する。そして、上記給湯栓が閉められ、水量センサ27が給水通路17の通水停止を検知すると、バーナーの燃焼を停止して給湯運転を終了し、次の給湯に備える。
【0009】
また、湯張り運転を行うときには、注湯制御弁22を開弁し、上記の如く、給湯熱交換器10で作り出した湯を給湯通路18と注湯通路20と追い焚き通路16を順に介して浴槽7に注湯し、水位センサ24により検出出力される浴槽水位が予め定められた設定の浴槽水位に達したと判断したときに注湯制御弁22を閉弁すると共にバーナ燃焼を停止して湯張り運転を終了する。
【0010】
さらに、追い焚き運転を行うときには、循環ポンプ14を駆動して浴槽7の湯水を戻り管15と循環ポンプ14と通路12と追い焚き熱交換器2と往管11とを順に通して浴槽7に戻す浴槽水の循環を行うと共に、バーナーを燃焼させ、このバーナーの燃焼火炎の熱により追い焚き熱交換器2の循環湯水を加熱することによって浴槽湯水の追い焚きが行われる。そして、風呂温度センサ25により検出された風呂温度が予め定めた設定の風呂温度に達したと判断したときにバーナー燃焼を停止すると共に循環ポンプを停止して上記追い焚き運転を終了することにより、設定の風呂温度に湯を沸かすことができる。
【0011】
【発明が解決しようとする課題】
ところで、上記のような一缶二水路タイプの風呂装置においては、例えば、追い焚き熱交換器2側と給湯熱交換器10側の吸熱比率に基づいて、給湯と風呂の追い焚きの同時燃焼時の燃焼制御が行われ、そのためには、追い焚き循環通路16を通る湯水の循環流量の測定および制御が不可欠となる。そこで、例えば、特開平1−314845号公報には、追い焚き循環通路16にボール式水量センサを設けて追い焚き循環通路16を通る湯水の循環流量を測定し、前記吸熱比率を演算し、給湯側の出湯温度の安定化のために、追い焚き循環通路16の湯水循環流量を制御する方法が提案されている。
【0012】
しかしながら、追い焚き循環通路16を通る浴槽湯水には髪の毛やゴミ等が多く含まれているために、ボール式水量センサなどのセンサに髪の毛やゴミ等が絡み付き、測定される浴槽湯水の循環流量が不正確な値になりがちであった。そのため、この不正確なデータに基づいて追い焚き循環通路16の湯水循環流量を制御すると、給湯側の出湯温度が不正確となり、出湯温度安定化制御がうまく行かずに、例えば、シャワーを浴びている人に熱湯がかかる等の危険や不具合が生じてしまうことが分かった。
【0013】
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、循環ポンプ個々ごとに異なる湯水循環効率により不正確になりがちな追い焚き循環通路の湯水循環流量制御を正確に行えるようにする風呂装置の循環ポンプ特性データ記憶方法およびその方法を用いて記憶した循環ポンプ特性データを利用する風呂装置を提供することにある。
【0014】
【課題を解決するための手段】
上記目的を達成するために、本発明は次のような構成をもって課題を解決するための手段としている。すなわち、本発明の風呂装置の循環ポンプ特性データ記憶方法は、浴槽湯水を追い焚き循環通路を通して循環させるための循環ポンプを備えた風呂装置内に、循環ポンプ駆動による浴槽湯水の循環流量制御に必要なデータを記憶するポンプデータメモリ部と循環ポンプに通電している電流を検出する電流検出手段とを設け、該風呂装置の外部に該風呂装置の前記追い焚き循環通路を循環する湯水の流量を検出する基準循環流量検出手段を設け、前記循環ポンプの駆動入力を可変させながら循環ポンプを駆動させて浴槽湯水を追い焚き循環通路を通して循環させたときの前記電流検出手段の検出電流に基づき求められる循環ポンプの消費電力と前記基準循環流量検出手段の検出流量との関係データを求めて該データを循環ポンプ特性データとして前記ポンプデータメモリ部に記憶させる構成をもって課題を解決するための手段としている。
【0015】
また、本発明の風呂装置は、浴槽湯水を追い焚き循環通路を通して循環させるための循環ポンプを備えた風呂装置であって、循環ポンプ駆動による浴槽湯水の循環流量制御に必要なデータを記憶するポンプデータメモリ部と循環ポンプに通電している電流を検出する電流検出手段とを有し、該電流検出手段により検出された検出電流に基づき求められる循環ポンプの消費電力と請求項1記載の循環ポンプ特性データ記憶方法を用いて記憶した循環ポンプ特性データとに基づいて追い焚き循環通路を通る循環湯水の流量を検出する循環流量検出部を有し、循環ポンプ特性データから得られる電力情報に基づき追い焚き循環通路を通る浴槽湯水の循環流量制御を行う制御部を有する構成をもって課題を解決するための手段としている。
【0016】
上記構成の本発明において、循環ポンプの駆動入力を可変させながら循環ポンプを駆動させて、浴槽湯水を追い焚き循環通路を通して循環させると、循環ポンプの通電電流は変化し、また、追い焚き循環通路の湯水循環流量も変化する。そして、このときの風呂装置内の電流検出手段の検出電流に基づき循環ポンプの消費電力が求められ、一方、風呂装置の外部に設けられた基準循環流量検出手段によって追い焚き循環通路を通る湯水循環流量が検出され、この検出流量と前記循環ポンプの消費電力との関係データが求められ、このデータが循環ポンプ特性データとして風呂装置内のポンプデータメモリ部に記憶させられる。
【0017】
このように、循環ポンプの特性が、循環ポンプの消費電力と風呂装置の外部に設けられる正確な流量検出可能な基準循環流量検出手段の検出流量との関係データにより記憶させられるために、個々の風呂装置の循環ポンプ毎の消費電力に対応した追い焚き循環通路の湯水循環流量を正確に得ることが可能となり、この循環ポンプ特性データに基づき、追い焚き循環通路を通る浴槽湯水の循環流量制御を行うことにより、浴槽湯水の循環流量制御を正確に行うことが可能となり、上記課題が解決される。
【0018】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。なお、本実施形態例の説明において、従来例と同一名称部分には同一符号を付し、その重複説明は省略する。図1には、本発明に係る風呂装置の循環ポンプ特性データ記憶方法を用いて風呂装置に特性データを記憶させる装置および風呂装置の制御構成の一例が示されており、図2にはそのシステム構成が示されている。なお、図2において、風呂装置には、循環ポンプ14に通電している電流を検出する電流検出手段としての電流計39が設けられており、これ以外の構成は、図4に示した風呂装置のシステム構成と同様であるのでその重複説明は省略する。
【0019】
図1,2に示されるように、風呂装置の外部には、風呂装置の追い焚き循環通路16を循環する湯水の流量を検出する基準循環流量検出手段としての、正確な流量検出可能な基準循環流量センサ13が設けられており、基準循環流量センサ13はデータ書き込み装置40に接続されている。データ書き込み装置40は、関係データ作製部41とデータ書き込み部43を有しており、風呂装置内の電流計39と電圧供給手段31と制御装置28に接続されている。風呂装置内の制御装置28は、追い焚き燃焼制御部34、給湯燃焼制御部35、データメモリ部36、循環流量検出部38を有して構成されている。
【0020】
データメモリ部36は、電気信号によって書き込みと消去が可能なEEPROM等の不揮発性のメモリによって構成されており、追い焚き燃焼制御部34によって行われる追い焚き燃焼制御に必要な様々なデータが格納されている。また、本実施形態例では、データメモリ部36は、この追い焚き燃焼制御に必要なデータの1つとしての、循環ポンプ駆動による浴槽湯水の循環流量制御に必要なデータを記憶するポンプデータメモリ部として機能するものである。
【0021】
関係データ作製部41は、風呂装置の追い焚き燃焼制御部34に循環ポンプ14の駆動指令を出力し、この指令によって循環ポンプ14の駆動入力を可変させながら循環ポンプ14を駆動させて、浴槽湯水を追い焚き循環通路16を通して循環させる。そして、このときの電流計39の検出電流Ip と電圧供給手段31により循環ポンプ14に供給される供給電圧Vp とに基づき、循環ポンプ14の消費電力Wp を、Wp =Vp ×Ip の式により求め、一方、基準循環流量センサ13によって検出される追い焚き循環通路16の湯水循環流量を取り込み、循環ポンプ14の消費電力と基準循環流量センサ13の検出流量との関係データを求める。この関係データは、例えば図3に示すようなグラフデータや、表データ、演算データ等のデータ形式で求められ、作製される。
【0022】
データ書き込み部43は、前記関係データ作製部41で作製した循環ポンプ14の消費電力と基準循環流量センサ13の検出流量との関係データを、循環ポンプ特性データとしてデータメモリ部36にデータを書き込み記憶させるものである。
【0023】
本実施形態例では、以上のように、風呂装置内にポンプデータメモリ部と循環ポンプ14の通電電流検出用の電流計39を設け、風呂装置の外部に基準循環流量センサ13を設け、循環ポンプ14の駆動入力を可変させながら循環ポンプ14を駆動させて浴槽湯水を追い焚き循環通路16を通して循環させたときの、電流計39の検出電流に基づき求められる循環ポンプ14の消費電力と基準循環流量センサ13の検出流量との関係データを関係データ作製部41で作製し、データ書き込み部43によりデータメモリ部36に記憶させることを特徴としている。そして、風呂装置は、この記憶した循環ポンプ特性データを利用して風呂の追い焚き制御などを行うことを特徴としている。
【0024】
この循環ポンプ特性データを利用した追い焚き燃焼制御を行うに際し、本実施形態例では、風呂装置の制御装置28に循環流量検出部38を設けている。循環流量検出部38は、データメモリ部36に記憶した循環ポンプ特性データと、電流計39により検出された検出電流とに基づいて追い焚き循環通路16を通る循環湯水の流量を検出するものである。
【0025】
循環流量検出部38は、電流計39により検出された循環ポンプ14の通電電流Ip と、電圧供給手段31により循環ポンプ14に供給された供給電圧Vp とを時々刻々と取り込み、それら供給電圧Vp と通電電流Ip とを取り込む度に、その取り込んだ供給電圧Vp と通電電流Ip とに基づき、循環ポンプ14の消費電力Wp を検出する。つまり、上記供給電圧Vp に通電電流Ip を乗算して得られる値(Vp ×Ip )を循環ポンプ14の消費電力Wp として検出する。そして、その循環ポンプ14の消費電力Wp と上記データメモリ部36の循環ポンプ特性データとに基づき、追い焚き循環通路16の湯水循環流量を検出する。
【0026】
具体的には、循環ポンプ特性データが図3に示すようなグラフデータや、表データである場合には、循環ポンプ14の消費電力Wp を循環ポンプ特性データに照らし合わせ、例えば、循環ポンプ14の消費電力が図3に示すWa であるときには、その消費電力Wa に対応する循環湯水流量はQa であるというように、追い焚き循環通路16の循環湯水流量を検出する。循環ポンプ特性データが、循環ポンプ14の消費電力Wp をパラメータとして追い焚き循環通路16の循環湯水流量を求めるための演算式データである場合には、循環ポンプ14の消費電力Wp を上記循環ポンプ特性データ(演算式)に代入して、追い焚き循環通路16の循環湯水流量を演算算出する。なお、循環ポンプ14の消費電力ゼロが検出されているときには、循環湯水流量ゼロを検出する。
【0027】
以下に、追い焚き循環通路16の湯水循環流量を利用した燃焼制御動作の一例を示す。
【0028】
給湯燃焼制御部35は、給湯や湯張り等の給湯機能の運転動作制御を行うものであり、給湯燃焼制御部35には、上記給湯や湯張りのシーケンスプログラムが予め定められており、給湯燃焼制御部35は、リモコン30の情報や、水量センサ27等のセンサ出力を取り込み、それら取り込んだ情報と、上記シーケンスプログラムに基づき、前述したように、給湯や湯張りの運転を制御する。
【0029】
上記追い焚き燃焼制御部34は、リモコン30の情報や、給湯燃焼制御部35の動作情報を取り込み、追い焚き指令信号を発せられたことを検知すると、電圧供給手段31により循環ポンプ14に予め定められた設定の電圧(例えば、100V)を供給し、循環ポンプ14の駆動を開始させる。
【0030】
また、追い焚き燃焼制御部34は、上記循環流量検出部38の流量検出情報を時々刻々と取り込み、循環流量検出部38により、予め定められた追い焚き作動流量(例えば、2.5リットル/min )未満の流量が検出されたときには、追い焚き循環通路16は通水オフ状態であると判断し、循環流量検出部38によって上記追い焚き作動流量以上の流量が検出されたときには追い焚き循環通路16は通水オン状態であると判断する。
【0031】
データメモリ部36には、追い焚き循環通路16の循環湯水流量と、浴槽湯水温度とに基づき、追い焚き時のバーナの要求燃焼能力を決定するための追い焚き燃焼能力決定データが予め定めてグラフデータや表データや演算式データ等のデータ形式で格納されている。
【0032】
追い焚き燃焼制御部34は、上記の如く、追い焚き循環通路16の通水オンを検知した後に、追い焚きのバーナ燃焼制御を開始し、上記循環流量検出部38により検出された追い焚き循環通路16の循環湯水流量と、風呂温度センサ25により検出された浴槽7の湯水温度と、上記データメモリ部36の追い焚き燃焼能力決定データとに基づいて求めた追い焚き要求燃焼能力となるように、バーナ燃焼を制御する。
【0033】
ところで、給湯と追い焚きが共に行われている同時燃焼中に、予め定められた給湯設定温度の湯を給湯するために必要な給湯要求燃焼能力と、上記の如く求められる追い焚き要求燃焼能力とを合計した燃焼能力が予め定まる風呂装置の最大燃焼能力を越えてしまう場合には、給湯優先の燃焼制御が行われる。つまり、一缶二水路タイプの風呂装置では、給湯要求燃焼能力と追い焚き要求燃焼能力との合計燃焼能力が最大燃焼能力を越えた場合には、最大燃焼能力から給湯要求燃焼能力を差し引いた残りの燃焼能力で追い焚き燃焼制御が行われる。
【0034】
追い焚き燃焼制御部34は、給湯燃焼制御部35の動作情報を取り込み、該情報に基づき、給湯と追い焚きが共に行われる同時燃焼であることを検知し、上記給湯燃焼制御部35から得られる給湯要求燃焼能力と、追い焚き要求燃焼能力との合計の燃焼能力が、予め定まる風呂装置の最大燃焼能力を越えていると判断したときには、風呂装置の最大燃焼能力から給湯要求燃焼能力を差し引いて追い焚きに利用可能な追い焚き要求燃焼能力を求め、該追い焚き要求燃焼能力と、風呂温度センサ25により検出される浴槽7の湯水温度と、以下に示す循環流量データとに基づき、同時燃焼中の追い焚き循環通路16の循環湯水流量を検出する。
【0035】
上記循環流量データとは、追い焚き要求燃焼能力がA、浴槽温度が18℃であるときには追い焚き循環通路16の循環湯水流量は6リットル/min というように、追い焚き要求燃焼能力と、浴槽温度との組合せによって、追い焚き循環通路16の循環湯水流量を求めるためのデータであり、予め定められてデータメモリ部36に格納されている。
【0036】
追い焚き燃焼制御部34は、上記求めた循環湯水流量となるように、前記循環ポンプ特性データを参照し、例えば、追い焚き循環通路16の湯水循環流量をQb にしたいときには、まず、追い焚き循環通路16の湯水循環流量Qb に対応する循環ポンプ14の消費電力情報を循環ポンプ特性データから求める。例えば図3においては、循環流量Qb に対応する循環ポンプ消費電力はWb となる。そして、この電力情報に基づき、そのときの循環ポンプ14の消費電力がWa であったとすると、追い焚き燃焼制御部34は循環ポンプ14の消費電力をWa からWb に可変する。すなわち、追い焚き燃焼制御部34は、電圧供給手段31による循環ポンプ14への供給電圧を可変しながら、電流計39の検出電流を取り込み、この供給電圧Vp と通電電流Ip との乗算によって得られる循環ポンプ14の消費電力がWb となるように循環ポンプ14への供給電圧を加えて、それにより追い焚き循環通路通る浴槽湯水の循環流量をQa からQb に制御する。
【0037】
そして、追い焚き燃焼制御部34は、風呂温度センサ25により検出される浴槽7の湯水温度が予め定められた風呂設定温度に達したと判断したときに、追い焚き燃焼制御を終了する。
【0038】
本実施形態例によれば、循環ポンプ14の駆動入力を可変させながら循環ポンプ14を駆動させて浴槽湯水を追い焚き循環通路16を通して循環させ、このときの電流計39の検出電流に基づいて循環ポンプ14の消費電力を求め、一方、追い焚き循環通路の循環流量は風呂装置の外部に設けた極めて正確な循環流量センサ13によって検出し、この検出流量と循環ポンプ14の消費電力との関係データを求めてこのデータを循環ポンプ特性データとしてデータメモリ部36に記憶させるために、この記憶したデータと、電流計39の検出電流に基づき求められる循環ポンプ14の消費電力とに基づいて追い焚き循環通路16の湯水循環流量を求めれば、追い焚き循環通路16の湯水循環流量を簡単に、かつ、極めて正確に得ることができる。
【0039】
したがって、追い焚き循環通路16に、通水流量を検出するための流量検出センサ等を設けることなく追い焚き循環通路16の循環湯水流量を得ることができ、流量検出センサのゴミ詰まりや髪詰まりに起因して追い焚き循環通路16の湯水循環流量を精度良く検出することができないという問題を解消することができる。そして、各風呂装置毎の循環ポンプ14に対応した循環ポンプ特性データを利用して、追い焚き循環通路16を通る浴槽湯水の循環流量制御を行うことにより、正確に循環流量制御を行うことが可能となり、追い焚き燃焼制御と共に、給湯側の出湯温度安定化制御も正確に行うことができる。
【0040】
なお、本発明は上記実施形態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、上記実施形態例では、循環ポンプ特性データを作製するときに、関係データ作製部41は、循環ポンプ14への供給電圧を電圧供給手段31から検出し、この検出した供給電圧と電流計39により検出された循環ポンプ14の通電電流とに基づき、循環ポンプ14の消費電力を求めたが、循環ポンプ14への供給電圧を可変せずに常に予め定めた設定の供給電圧を供給する場合には、循環ポンプ14への供給電圧が予め定まるので、その設定の供給電圧を関係データ作製部41に予め与えておき、関係データ作製部41は与えられた設定の供給電圧と電流計39の検出電流とに基づき循環ポンプ14の消費電力を求め、この循環ポンプ14の消費電力と基準循環流量センサ13の検出電流との関係データを求めて循環ポンプ特性データを作製してもよい。
【0041】
また、上記各実施形態例では、循環流量検出部38は循環ポンプ14への供給電圧を電圧供給手段31から検出し、この検出した供給電圧と、電流計39により検出された循環ポンプ14の通電電流とに基づき、循環ポンプ14の消費電力を求めていたが、循環ポンプ14への供給電圧を可変せずに常に予め定めた設定の供給電圧を供給する場合には、循環ポンプ14への供給電圧が予め定まるので、上記設定の供給電圧を循環流量検出部38に予め与えておき、循環流量検出部38は、電圧供給手段31から循環ポンプ14への供給電圧を検出することなく、上記与えられた設定の供給電圧と、電流計39の検出電流とに基づき、循環ポンプ14の消費電力を求めるようにしてもよい。
【0042】
さらに、上記実施形態例では、図2に示す一缶二水路タイプの風呂装置を例にして説明したが、本発明の風呂装置は、図2に示す風呂装置に限定されるものではなく、浴槽湯水を追い焚き循環通路を通して循環させるための循環ポンプを備えていれば、図4に示した装置以外の風呂装置に適用することができる。例えば、追い焚き熱交換器2を燃焼加熱するバーナーと、給湯熱交換器10を燃焼加熱するバーナーとがそれぞれ別個に設けられている風呂装置や、追い焚きのみを行う追い焚き単機能の風呂装置にも、この発明は適用することができる。
【0043】
さらに、上記実施形態例では、データ書き込み装置40を設け、データ書き込み装置40の関係データ作製部41が追い焚き燃焼制御部34に循環ポンプ14の駆動指令を加え、循環ポンプ14の駆動入力を可変させながら循環ポンプ14を駆動させて循環ポンプ特性データを作製するようにしたが、例えば風呂装置のリモコン30の操作などによって循環ポンプ14の駆動入力を可変させながら循環ポンプ14を駆動させ、このときの電流計39の検出電流に基づき求められる循環ポンプ14の消費電力と基準循環流量センサ13の検出流量との関係データを求めて循環ポンプ特性データを作製してもよい。
【0044】
さらに、上記実施形態例では、データ書き込み装置40に関係データ作製部41とデータ書き込み部43を設け、関係データ作製部41で作製した循環ポンプ特性データをデータ書き込み部43によって風呂装置のデータメモリ部36に書き込むようにしたが、例えば関係データ作製部41で作製した循環ポンプ特性データを、風呂装置のリモコン30の操作等によってデータメモリ部36に書き込むようにしてもよい。
【0045】
さらに、上記実施形態例では、データ書き込み装置40の関係データ作製部41によって循環ポンプ特性データを作製したが、例えば、循環ポンプ14の駆動入力を可変させながら循環ポンプ14を駆動させて浴槽湯水を追い焚き循環通路16を通して循環させたときの、電流計39の検出電流と基準循環流量センサ13の検出流量の一方又は両方を人手によって取り込み、電流計の検出電流に基づき求められる循環ポンプ14の消費電力と基準循環流量センサ13の検出流量との関係データを人手によって作製し、作製した循環ポンプ特性データをデータメモリ部36に記憶させるようにしてもよい。
【0046】
さらに、上記実施形態例では、風呂装置の循環ポンプ14に通電している電流を検出する電流検出手段として電流計39を設けたが、電流計39に代えて、例えば、循環ポンプ14に印加する電圧(位相制御の場合には位相角)と循環ポンプ14のコイル温度を測定する温度計情報から循環ポンプ14の通電電流値を推測して検出する電流検出手段を設けてもよい。
【0047】
このように、本発明の風呂装置の循環ポンプ特性データ記憶方法は、循環ポンプ14の駆動入力を可変させながら循環ポンプ14を駆動させて浴槽湯水を追い焚き循環通路16を通して循環させたときの、電流検出手段の検出電流に基づき求められる循環ポンプ14の消費電力と基準循環流量センサ13の検出流量との関係データを求め、このデータを循環ポンプ特性データとしてデータメモリ部36等のポンプデータメモリ部に記憶させるようにすればよく、循環ポンプ特性データの作製およびデータの書き込みに用いられる装置は特に限定されるものではなく適宜設定されるものである。ただし、上記実施形態例のように、関係データ作製部41とデータ書き込み部43を有するデータ書き込装置40を風呂装置に接続して循環ポンプ特性データの作製およびデータの書き込みを自動的に行うようにすることで、データの作製および書き込みを短時間で、容易に、かつ、正確に行うことができる。
【0048】
【発明の効果】
本発明によれば、風呂装置の循環ポンプの駆動入力を可変させながら循環ポンプを駆動させて浴槽湯水を追い焚き循環通路を通して循環させ、このときの循環ポンプの通電電流を電流検出手段によって検出し、この検出電流に基づいて循環ポンプの消費電力を求め、それと同時に、風呂装置の外部に設けた基準循環流量検出手段によって追い焚き循環通路の湯水循環流量を検出し、この検出循環流量と前記循環ポンプの消費電力との関係データを求めて循環ポンプ特性データとするために、風呂装置毎の循環ポンプの消費電力に対応した追い焚き循環通路の湯水循環流量を正確に循環ポンプ特性データとして得ることができる。
【0049】
そして、この正確な循環ポンプ特性データを風呂装置内のポンプデータメモリ部に記憶させることにより、風呂装置は、例えばこの循環ポンプ特性データと前記電流検出手段により検出された検出電流とに基づいて、追い焚き循環通路を通る循環湯水の流量を正確に検出することが可能となり、循環ポンプ特性データから得られる電力情報に基づいて追い焚き循環通路を通る浴槽湯水の循環流量制御を正確に行うことができる。
【0050】
そのため、本発明を、追い焚き循環通路を通る湯水を加熱する追い焚き熱交換器と、給水通路から通される水を加熱する給湯熱交換器とが共通のバーナによって加熱される一缶二水路タイプの風呂装置に適用することにより、追い焚きと給湯の同時燃焼時に追い焚き循環通路を通る湯水の循環流量を正確に制御して給湯側の出湯温度の安定化を図ることもできる。
【図面の簡単な説明】
【図1】本発明に係る風呂装置の循環ポンプ特性データ記憶方法を適用させるデータ書き込み装置および風呂装置の一実施形態例の要部制御構成を示すブロック図である。
【図2】上記実施形態例のシステム構成図である。
【図3】循環ポンプ特性データの一例を示すグラフである。
【図4】一缶二水路タイプの風呂装置のモデル例を示すシステム構成図である。
【符号の説明】
13 基準循環流量センサ
14 循環ポンプ
16 追い焚き循環通路
34 追い焚き燃焼制御部
36 データメモリ部
38 循環流量検出部
39 電流計
40 データ書き込み装置
41 関係データ作製部
43 データ書き込み部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a circulation pump characteristic data storage method of a bath apparatus provided with a circulation pump for circulating hot water from a bathtub through a circulation passage, and a bath apparatus using the circulation pump characteristic data stored by using the method. is there.
[0002]
[Prior art]
FIG. 4 shows an example of a bath apparatus provided with a circulation pump. The bath apparatus shown in FIG. 4 is a bath apparatus having a hot water supply function such as a hot water supply or a hot water bath in a bathtub in addition to a bath function such as a hot spring, and a reheating heat exchanger 2 and a hot water supply heat exchanger. 10 in the appliance case 3, the reheating heat exchanger 2 and the hot water supply heat exchanger 10 are integrated, and the integrated reheating heat exchanger 2 and the hot water supply heat exchanger 10 are commonly heated by combustion. It is of the one can two water channel type provided with a burner.
[0003]
One end side of the forward pipe 11 is connected to one end side of the reheating heat exchanger 2, and the other end side of the forward pipe 11 is communicated with the bathtub 7 via the external pipe 6. Further, one end side of the passage 12 is connected to the other end side of the reheating heat exchanger 2, the other end side of the passage 12 is connected to the discharge port side of the circulation pump 14, and the suction port side of the circulation pump 14 is connected to the suction port side. One end side of the return pipe 15 is connected, and the other end side of the return pipe 15 communicates with the bathtub 7 via the external pipe 8. A recirculation circulation passage 16 is constituted by the outgoing pipe 11, the reheating heat exchanger 2, the passage 12, the circulation pump 14, and the return pipe 15.
[0004]
One end side of the hot water supply heat exchanger 10 is connected to one end side of the water supply passage 17, and the other end side of the water supply passage 17 is led to a water supply source via an external pipe. Furthermore, one end side of the hot water supply passage 18 is connected to the other end side of the hot water supply heat exchanger 10, and the other end side of the hot water supply passage 18 is led to a hot water supply place such as a kitchen or a shower through an external pipe.
[0005]
Further, a pouring passage 20 that communicates the hot water supply passage 18 and the outgoing pipe 11 is provided. The pouring passage 20 is provided with a pouring control valve 22 that opens and closes the passage, and a bathtub. A water level sensor 24 for detecting the water level 7 by water pressure is provided. A hot water filling passage is constituted by a portion of the hot water supply passage 18 from the hot water supply heat exchanger 10 to the connecting portion with the pouring passage 20, the pouring passage 20, and the reheating passage 16, and the hot water filling passage is formed through this hot water filling passage. The hot water supply heat exchanger 10 is communicated with the bathtub 7.
[0006]
In the figure, 25 is a bath temperature sensor for detecting the hot water temperature of the reheating passage 16 as the hot water temperature of the bathtub 7, and 26 is a hot water thermistor for detecting the hot water temperature produced by the hot water supply heat exchanger 10. , 27 is a water amount sensor for detecting the water flow rate of the water supply passage 17.
[0007]
The bath device is provided with a control device 28 for controlling the operation of the appliance, and a remote controller 30 is connected to the control device 28. The remote controller 30 includes a bath temperature setting means for setting the bath temperature, a bathtub Bath water level setting means for setting the water level, hot water supply temperature setting means for setting the hot water supply temperature, and the like are provided. The control device 28 is preliminarily provided with a sequence program for controlling the operation of the appliance, and the control device 28 takes in information on sensor outputs of various sensors such as the water level sensor 24 and information on the remote controller 30 and transfers them. Based on the fetched information, appliance operation control such as hot water supply, hot water filling and chasing is performed according to the sequence program as follows.
[0008]
For example, when a hot water tap (not shown) such as a kitchen or a shower is opened and the water amount sensor 27 detects water flow through the water supply passage 17, combustion of the burner is started, and hot water having a predetermined hot water supply set temperature is supplied. Combustion capacity is controlled so that hot water can be supplied, and hot water is produced by heating the water passing through the hot water supply heat exchanger 10 by the heat of the combustion flame of the burner, and this hot water is supplied to a hot water outlet through the hot water supply passage 18. And when the said hot-water tap is closed and the water quantity sensor 27 detects the water supply stop of the water supply channel | path 17, the combustion of a burner is stopped, a hot water supply operation is complete | finished, and it prepares for the next hot water supply.
[0009]
Further, when performing the hot water filling operation, the pouring control valve 22 is opened, and the hot water produced by the hot water supply heat exchanger 10 is sequentially passed through the hot water supply passage 18, the pouring passage 20 and the reheating passage 16 as described above. When it is determined that the bath water level detected and outputted by the water level sensor 24 has reached the preset bath water level, the hot water control valve 22 is closed and the burner combustion is stopped. The hot water filling operation is terminated.
[0010]
Further, when the reheating operation is performed, the circulating pump 14 is driven, and the hot water in the bathtub 7 is passed through the return pipe 15, the circulating pump 14, the passage 12, the reheating heat exchanger 2, and the outgoing pipe 11 in order to the bathtub 7. The return bath water is circulated, the burner is burned, and the hot water in the heat exchanger 2 is heated by the heat of the combustion flame of the burner, whereby the hot water in the bathtub is reheated. Then, when it is determined that the bath temperature detected by the bath temperature sensor 25 has reached a preset bath temperature, the burner combustion is stopped and the circulation pump is stopped to end the reheating operation, Hot water can be boiled to the set bath temperature.
[0011]
[Problems to be solved by the invention]
By the way, in the one-can two-water channel type bath apparatus as described above, for example, at the time of simultaneous combustion of hot water supply and bath reheating based on the heat absorption ratio between the reheating heat exchanger 2 side and the hot water supply heat exchanger 10 side. Therefore, measurement and control of the circulating flow rate of hot water passing through the recirculation circulation passage 16 are indispensable. Therefore, for example, in JP-A-1-314845, a ball-type water amount sensor is provided in the recirculation circulation passage 16, the circulation flow rate of hot water passing through the recirculation circulation passage 16, the heat absorption ratio is calculated, In order to stabilize the side hot water temperature, a method of controlling the hot water circulation flow rate in the recirculation circulation passage 16 has been proposed.
[0012]
However, since the bathtub hot water passing through the recirculation circulation passage 16 contains a large amount of hair, dust, etc., hair, dust, etc. get tangled in the sensor such as a ball-type water amount sensor, and the circulating flow rate of the bathtub hot water measured is It tends to be an inaccurate value. For this reason, if the hot water circulation flow rate in the recirculation passage 16 is controlled based on this inaccurate data, the hot water temperature on the hot water supply side becomes inaccurate, and the hot water temperature stabilization control does not work well. It has been found that there are dangers and malfunctions such as hot water being applied to people.
[0013]
The present invention has been made to solve the above-mentioned problems, and its purpose is to enable accurate control of the hot water circulation flow rate in the recirculation circulation path, which tends to be inaccurate due to different hot water circulation efficiency for each circulation pump. It is an object of the present invention to provide a circulating pump characteristic data storage method for a bath apparatus and a bath apparatus that uses the circulating pump characteristic data stored by using the method.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following configuration as means for solving the problems. That is, the method for storing the circulation pump characteristic data of the bath apparatus of the present invention is necessary for the circulation flow control of the bathtub hot water by driving the circulation pump in the bath apparatus provided with the circulation pump for recirculating the bath hot water and circulating it through the circulation passage. A pump data memory unit for storing various data and a current detection means for detecting a current flowing in the circulation pump, and the flow rate of hot water circulating through the recirculation circulation passage of the bath device is set outside the bath device. A reference circulating flow rate detecting means for detecting is provided, which is obtained based on a detected current of the current detecting means when the circulating pump is driven while circulating the driving input of the circulating pump and the hot water is recirculated through the circulating passage. The relational data between the power consumption of the circulation pump and the detected flow rate of the reference circulation flow rate detecting means is obtained, and this data is used as the circulation pump characteristic data. And a means for solving the problems with the configuration to be stored in the pump data memory unit.
[0015]
The bath apparatus of the present invention is a bath apparatus provided with a circulation pump for recirculating bathtub hot water and circulating it through a circulation passage, and stores data necessary for controlling the circulation flow rate of bathtub hot water by driving the circulation pump. 2. The circulation pump according to claim 1, further comprising: a data memory unit; and current detection means for detecting current flowing in the circulation pump, wherein the circulation pump power consumption is obtained based on the detected current detected by the current detection means. A circulation flow rate detection unit that detects the flow rate of circulating hot water passing through the recirculation circulation path based on the circulation pump characteristic data stored using the characteristic data storage method, and additionally detects the flow rate based on the power information obtained from the circulation pump characteristic data. A configuration having a control unit for controlling the circulation flow rate of bathtub hot water passing through the soaking circulation passage is used as means for solving the problem.
[0016]
In the present invention having the above-described configuration, when the circulating pump is driven while the driving input of the circulating pump is varied to circulate the bath water through the recirculation circulation path, the energization current of the circulation pump changes, and the recirculation circulation path The hot and cold water circulation flow also changes. Then, the power consumption of the circulation pump is obtained based on the current detected by the current detection means in the bath device at this time, while the hot water circulation through the recirculation circulation passage by the reference circulation flow rate detection means provided outside the bath device. The flow rate is detected, relational data between the detected flow rate and the power consumption of the circulation pump is obtained, and this data is stored as circulation pump characteristic data in the pump data memory unit in the bath apparatus.
[0017]
In this way, since the characteristics of the circulation pump are stored by the relational data between the power consumption of the circulation pump and the detected flow rate of the reference circulation flow rate detecting means that can accurately detect the flow rate provided outside the bath apparatus, It becomes possible to accurately obtain the hot water circulation flow rate of the recirculation circulation passage corresponding to the power consumption of each circulation pump of the bath device, and based on this circulation pump characteristic data, the circulation flow control of the bathtub hot water passing through the recirculation circulation passage is controlled. By doing so, it becomes possible to accurately control the circulation flow rate of bathtub hot water, and the above-mentioned problems are solved.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the present embodiment, the same reference numerals are assigned to the same name portions as in the conventional example, and the duplicate description thereof is omitted. FIG. 1 shows an example of an apparatus for storing characteristic data in a bath apparatus using the circulating pump characteristic data storage method of the bath apparatus according to the present invention, and a control configuration of the bath apparatus. FIG. The configuration is shown. In FIG. 2, the bath apparatus is provided with an ammeter 39 as current detection means for detecting the current flowing through the circulation pump 14, and the other configuration is the same as that of the bath apparatus shown in FIG. Since this is the same as the system configuration of FIG.
[0019]
As shown in FIGS. 1 and 2, a reference circulation capable of detecting an accurate flow rate is provided outside the bath device as a reference circulation flow rate detecting means for detecting the flow rate of hot water circulating in the recirculation circulation passage 16 of the bath device. A flow sensor 13 is provided, and the reference circulation flow sensor 13 is connected to the data writing device 40. The data writing device 40 includes a related data preparation unit 41 and a data writing unit 43, and is connected to an ammeter 39, voltage supply means 31, and control device 28 in the bath device. The control device 28 in the bath apparatus includes a reheating combustion control unit 34, a hot water supply combustion control unit 35, a data memory unit 36, and a circulating flow rate detection unit 38.
[0020]
The data memory unit 36 is configured by a nonvolatile memory such as an EEPROM that can be written and erased by an electrical signal, and stores various data necessary for the reheating combustion control performed by the reheating combustion control unit 34. ing. Further, in the present embodiment, the data memory unit 36 stores the data necessary for controlling the circulating flow rate of the hot and cold water of the bathtub by circulating pump drive as one of the data necessary for the reheating combustion control. It functions as.
[0021]
The relational data preparation unit 41 outputs a drive command for the circulation pump 14 to the reheating combustion control unit 34 of the bath apparatus, and drives the circulation pump 14 while changing the drive input of the circulation pump 14 according to this command. Is circulated through the circulation passage 16. Then, based on the detected current Ip of the ammeter 39 at this time and the supply voltage Vp supplied to the circulation pump 14 by the voltage supply means 31, the power consumption Wp of the circulation pump 14 is obtained by the equation Wp = Vp × Ip. On the other hand, the hot water circulation flow rate in the recirculation circulation passage 16 detected by the reference circulation flow sensor 13 is taken in, and the relationship data between the power consumption of the circulation pump 14 and the detection flow rate of the reference circulation flow sensor 13 is obtained. This relational data is obtained and produced in a data format such as graph data, table data, calculation data, etc. as shown in FIG. 3, for example.
[0022]
The data writing unit 43 writes and stores the relationship data between the power consumption of the circulation pump 14 and the detected flow rate of the reference circulation flow sensor 13 produced by the relationship data creation unit 41 in the data memory unit 36 as circulation pump characteristic data. It is something to be made.
[0023]
In the present embodiment, as described above, the pump data memory unit and the ammeter 39 for detecting the energization current of the circulation pump 14 are provided in the bath device, the reference circulation flow sensor 13 is provided outside the bath device, and the circulation pump When the circulating pump 14 is driven while the drive input of 14 is varied and the bathtub hot water is recirculated and circulated through the circulation passage 16, the power consumption of the circulation pump 14 and the reference circulation flow rate obtained based on the current detected by the ammeter 39. Data related to the detected flow rate of the sensor 13 is generated by the related data generating unit 41 and stored in the data memory unit 36 by the data writing unit 43. The bath apparatus is characterized by performing bath renewal control using the stored circulation pump characteristic data.
[0024]
In performing the reheating combustion control using the circulation pump characteristic data, in this embodiment, a circulation flow rate detection unit 38 is provided in the control device 28 of the bath apparatus. The circulation flow rate detection unit 38 detects the flow rate of circulating hot water passing through the recirculation circulation passage 16 based on the circulation pump characteristic data stored in the data memory unit 36 and the detected current detected by the ammeter 39. .
[0025]
The circulation flow rate detection unit 38 takes in the energizing current Ip of the circulation pump 14 detected by the ammeter 39 and the supply voltage Vp supplied to the circulation pump 14 by the voltage supply means 31 from time to time. Each time the energization current Ip is captured, the power consumption Wp of the circulation pump 14 is detected based on the captured supply voltage Vp and the energization current Ip. That is, a value (Vp × Ip) obtained by multiplying the supply voltage Vp by the energization current Ip is detected as the power consumption Wp of the circulation pump 14. Then, based on the power consumption Wp of the circulation pump 14 and the circulation pump characteristic data of the data memory unit 36, the hot water circulation flow rate of the recirculation circulation passage 16 is detected.
[0026]
Specifically, when the circulation pump characteristic data is graph data as shown in FIG. 3 or table data, the power consumption Wp of the circulation pump 14 is checked against the circulation pump characteristic data. When the power consumption is Wa shown in FIG. 3, the circulating hot water flow rate in the recirculation circulation passage 16 is detected such that the circulating hot water flow rate corresponding to the power consumption Wa is Qa. When the circulation pump characteristic data is calculation data for obtaining the circulating hot water flow rate of the recirculation circulation passage 16 using the power consumption Wp of the circulation pump 14 as a parameter, the power consumption Wp of the circulation pump 14 is calculated as the circulation pump characteristic. By substituting into the data (calculation formula), the circulating hot water flow rate in the recirculation circulation passage 16 is calculated. When zero power consumption of the circulation pump 14 is detected, zero circulating hot water flow rate is detected.
[0027]
Hereinafter, an example of the combustion control operation using the hot water circulation flow rate in the recirculation circulation passage 16 will be shown.
[0028]
The hot water supply combustion control unit 35 performs operation control of hot water supply functions such as hot water supply and hot water filling, and the hot water supply and combustion control unit 35 has a predetermined sequence program for hot water supply and hot water filling. The control unit 35 takes in the information of the remote controller 30 and the sensor output of the water amount sensor 27 and the like, and controls the operation of hot water supply and hot water filling as described above based on the taken-in information and the sequence program.
[0029]
When the reheating combustion control unit 34 takes in the information of the remote controller 30 and the operation information of the hot water supply combustion control unit 35 and detects that a reheating command signal is issued, the recirculation pump 14 is predetermined by the voltage supply means 31. The set voltage (for example, 100 V) is supplied, and the driving of the circulation pump 14 is started.
[0030]
Further, the reheating combustion control unit 34 takes in the flow rate detection information of the circulating flow rate detection unit 38 from time to time, and the recirculation flow rate detection unit 38 sets a predetermined reheating operation flow rate (for example, 2.5 liters / min). When the flow rate less than) is detected, it is determined that the recirculation circulation passage 16 is in a water-off state. Is determined to be in the water-on state.
[0031]
In the data memory unit 36, the reheating combustion capacity determination data for determining the required combustion capacity of the burner at the time of reheating is determined in advance based on the circulating hot water flow rate in the recirculation circulation passage 16 and the bath water temperature. It is stored in data formats such as data, table data, and arithmetic expression data.
[0032]
As described above, the reheating combustion control unit 34 starts reheating burner combustion control after detecting the on-flow of the recirculation circulation passage 16, and detects the recirculation circulation passage detected by the circulation flow rate detection unit 38. The recirculation hot water flow rate of 16, the hot water temperature of the bathtub 7 detected by the bath temperature sensor 25, and the reheating required combustion capacity determined based on the reheating combustion capacity determination data of the data memory unit 36, Control burner combustion.
[0033]
By the way, during the simultaneous combustion in which both hot water supply and reheating are performed, the required hot water supply required combustion capacity for supplying hot water at a predetermined hot water supply set temperature, and the renewal required combustion capacity required as described above, When the total combustion capacity exceeds the predetermined maximum combustion capacity of the bath apparatus, hot water priority combustion control is performed. In other words, if the total combustion capacity of the hot water supply required combustion capacity and the reheating required combustion capacity exceeds the maximum combustion capacity, the remainder of the maximum combustion capacity minus the hot water supply required combustion capacity in the single can / two water channel type bath apparatus. Combustion combustion control is performed with the combustion capacity of.
[0034]
The reheating combustion control unit 34 takes in the operation information of the hot water supply combustion control unit 35, detects based on the information that simultaneous combustion in which both hot water supply and reheating are performed, and is obtained from the hot water supply combustion control unit 35. When it is determined that the total combustion capacity of the hot water supply required combustion capacity and the reheating required combustion capacity exceeds the predetermined maximum combustion capacity of the bath apparatus, subtract the hot water supply required combustion capacity from the maximum combustion capacity of the bath apparatus. The reclaim required combustion capacity that can be used for reheating is obtained, and based on the reclaim required combustion capacity, the hot / cold water temperature of the bathtub 7 detected by the bath temperature sensor 25, and the circulating flow rate data shown below, The circulating hot water flow rate in the recirculation circulation passage 16 is detected.
[0035]
The above circulation flow rate data means that when the reheating required combustion capacity is A and the bath temperature is 18 ° C., the recirculating hot water flow rate in the recirculation circulation passage 16 is 6 liters / min. Is a data for obtaining the circulating hot water flow rate of the recirculation circulation passage 16 by a combination thereof, and is predetermined and stored in the data memory unit 36.
[0036]
The reheating combustion control unit 34 refers to the circulation pump characteristic data so as to obtain the above-described circulating hot water flow rate. For example, when it is desired to set the hot water circulation flow rate in the recirculation circulation passage 16 to Qb, first, the renewal circulation control The power consumption information of the circulation pump 14 corresponding to the hot water circulation flow rate Qb of the passage 16 is obtained from the circulation pump characteristic data. For example, in FIG. 3, the circulation pump power consumption corresponding to the circulation flow rate Qb is Wb. Based on this power information, if the power consumption of the circulation pump 14 at that time is Wa, the reheating combustion controller 34 changes the power consumption of the circulation pump 14 from Wa to Wb. That is, the combustion combustion control unit 34 obtains the detection current of the ammeter 39 while varying the supply voltage to the circulation pump 14 by the voltage supply means 31, and obtains this by multiplying the supply voltage Vp and the energization current Ip. The supply voltage to the circulation pump 14 is applied so that the power consumption of the circulation pump 14 becomes Wb, thereby controlling the circulation flow rate of the bath water flowing through the recirculation circulation passage from Qa to Qb.
[0037]
When the reheating combustion control unit 34 determines that the hot water temperature of the bathtub 7 detected by the bath temperature sensor 25 has reached a predetermined bath setting temperature, the reheating combustion control is terminated.
[0038]
According to the present embodiment, the circulating pump 14 is driven while the driving input of the circulating pump 14 is varied to recirculate bathtub hot water through the circulating passage 16 and circulate based on the detected current of the ammeter 39 at this time. The power consumption of the pump 14 is obtained. On the other hand, the circulation flow rate in the recirculation circulation passage is detected by a very accurate circulation flow sensor 13 provided outside the bath device, and the relational data between the detected flow rate and the power consumption of the circulation pump 14 is obtained. Therefore, this data is stored in the data memory unit 36 as circulation pump characteristic data, so that the recirculation circulation is based on the stored data and the power consumption of the circulation pump 14 obtained based on the detected current of the ammeter 39. If the hot water circulation flow rate in the passage 16 is obtained, the hot water circulation flow rate in the recirculation circulation passage 16 can be obtained easily and extremely accurately.
[0039]
Accordingly, it is possible to obtain the circulating hot water flow rate in the recirculation circulation passage 16 without providing the flow recirculation passage 16 with a flow rate detection sensor or the like for detecting the flow rate of water flow. As a result, the problem that the hot water circulation flow rate in the recirculation circulation passage 16 cannot be detected with high accuracy can be solved. And by using the circulation pump characteristic data corresponding to the circulation pump 14 for each bath device, the circulation flow rate control can be accurately performed by performing the circulation flow rate control of the bathtub hot water passing through the recirculation circulation passage 16. Accordingly, the hot water temperature stabilization control on the hot water supply side can be accurately performed together with the combustion combustion control.
[0040]
In addition, this invention is not limited to the said embodiment example, Various aspects can be taken. For example, in the above embodiment, when the circulation pump characteristic data is created, the relational data creation unit 41 detects the supply voltage to the circulation pump 14 from the voltage supply means 31, and the detected supply voltage and the ammeter 39 are detected. The power consumption of the circulation pump 14 is obtained based on the energization current of the circulation pump 14 detected by the above, but when the supply voltage set in advance is always supplied without changing the supply voltage to the circulation pump 14. Since the supply voltage to the circulation pump 14 is determined in advance, the set supply voltage is given in advance to the related data preparation unit 41, and the relation data preparation unit 41 detects the supplied supply voltage and ammeter 39. The power consumption of the circulation pump 14 is obtained based on the current, and the relationship data between the power consumption of the circulation pump 14 and the detected current of the reference circulation flow sensor 13 is obtained to obtain the circulation pump characteristic data. The may be made.
[0041]
In each embodiment described above, the circulation flow rate detector 38 detects the supply voltage to the circulation pump 14 from the voltage supply means 31, and the detected supply voltage and the energization of the circulation pump 14 detected by the ammeter 39. The power consumption of the circulation pump 14 is obtained based on the current, but when the supply voltage of the predetermined setting is always supplied without changing the supply voltage to the circulation pump 14, the supply to the circulation pump 14 is performed. Since the voltage is determined in advance, the supply voltage set as described above is given in advance to the circulation flow rate detection unit 38, and the circulation flow rate detection unit 38 does not detect the supply voltage from the voltage supply means 31 to the circulation pump 14, and gives the above supply voltage. The power consumption of the circulation pump 14 may be obtained based on the set supply voltage and the detected current of the ammeter 39.
[0042]
Furthermore, in the above-described embodiment, the one-can two-water channel type bath apparatus illustrated in FIG. 2 has been described as an example. However, the bath apparatus of the present invention is not limited to the bath apparatus illustrated in FIG. If a circulation pump for circulating hot water through the circulation passage is provided, it can be applied to a bath apparatus other than the apparatus shown in FIG. For example, a bath apparatus in which a burner that burns and heats the reheating heat exchanger 2 and a burner that burns and heats the hot water supply heat exchanger 10 are separately provided, or a reheating single-function bath apparatus that performs only reheating. In addition, the present invention can be applied.
[0043]
Further, in the above-described embodiment, the data writing device 40 is provided, and the related data generating unit 41 of the data writing device 40 applies the drive command for the circulation pump 14 to the reheating combustion control unit 34, thereby changing the drive input of the circulation pump 14. The circulation pump characteristic data is generated by driving the circulation pump 14 while the circulation pump 14 is driven. For example, the circulation pump 14 is driven while changing the drive input of the circulation pump 14 by operating the remote controller 30 of the bath device. The relationship between the power consumption of the circulation pump 14 obtained based on the detected current of the current meter 39 and the detected flow rate of the reference circulation flow sensor 13 may be obtained to produce the circulation pump characteristic data.
[0044]
Furthermore, in the above-described embodiment, the data writing device 40 is provided with the related data creating unit 41 and the data writing unit 43, and the circulation pump characteristic data created by the related data creating unit 41 is transferred to the data memory unit of the bath apparatus by the data writing unit 43. However, for example, the circulation pump characteristic data created by the relational data creation unit 41 may be written to the data memory unit 36 by operating the remote controller 30 of the bath apparatus.
[0045]
Furthermore, in the above embodiment example, the circulation pump characteristic data is created by the relation data creation unit 41 of the data writing device 40. For example, the circulation pump 14 is driven while the drive input of the circulation pump 14 is varied, and bath water is supplied. When circulating through the recirculation circulation passage 16, one or both of the detected current of the ammeter 39 and the detected flow rate of the reference circulating flow rate sensor 13 are manually taken in, and the consumption of the circulation pump 14 determined based on the detected current of the ammeter Data related to the electric power and the detected flow rate of the reference circulation flow sensor 13 may be manually created, and the produced circulation pump characteristic data may be stored in the data memory unit 36.
[0046]
Furthermore, in the above embodiment, the ammeter 39 is provided as a current detecting means for detecting the current flowing in the circulation pump 14 of the bath apparatus. However, instead of the ammeter 39, for example, the ammeter 39 is applied to the circulation pump 14. Current detecting means for estimating and detecting the energization current value of the circulation pump 14 from the voltage (phase angle in the case of phase control) and thermometer information for measuring the coil temperature of the circulation pump 14 may be provided.
[0047]
As described above, the circulation pump characteristic data storage method of the bath apparatus according to the present invention drives the circulation pump 14 while varying the drive input of the circulation pump 14 and recirculates the bathtub hot water through the circulation passage 16. The relation data between the power consumption of the circulation pump 14 obtained based on the detection current of the current detection means and the detection flow rate of the reference circulation flow sensor 13 is obtained, and this data is used as the circulation pump characteristic data and the pump data memory section such as the data memory section 36. The device used for producing the circulation pump characteristic data and writing the data is not particularly limited and is appropriately set. However, as in the above-described embodiment, the data writing device 40 having the relational data generating unit 41 and the data writing unit 43 is connected to the bath device so as to automatically generate the circulation pump characteristic data and write the data. By doing so, data can be created and written easily and accurately in a short time.
[0048]
【The invention's effect】
According to the present invention, the circulation pump is driven while varying the drive input of the circulation pump of the bath apparatus to recirculate the bathtub hot water and circulate through the circulation passage, and the energization current of the circulation pump at this time is detected by the current detection means. Then, the power consumption of the circulation pump is obtained based on the detected current, and at the same time, the hot water circulation flow rate in the recirculation circulation passage is detected by the reference circulation flow rate detection means provided outside the bath device, and the detected circulation flow rate and the circulation flow are detected. In order to obtain the relationship between the pump power consumption and the circulation pump characteristic data, the hot water circulation flow rate in the recirculation circulation passage corresponding to the power consumption of the circulation pump for each bath device can be accurately obtained as the circulation pump characteristic data. Can do.
[0049]
And by storing this accurate circulation pump characteristic data in the pump data memory unit in the bath apparatus, the bath apparatus is based on, for example, the circulation pump characteristic data and the detected current detected by the current detection means. It is possible to accurately detect the flow rate of circulating hot water passing through the recirculation circulation passage, and accurately control the circulation flow rate of bathtub hot water passing through the recirculation circulation passage based on the power information obtained from the circulation pump characteristic data. it can.
[0050]
Therefore, according to the present invention, a reheating heat exchanger that heats hot water passing through the recirculation circulation passage and a hot water supply heat exchanger that heats water passed from the water supply passage are heated by a common burner. By applying to a type of bath apparatus, it is possible to accurately control the circulation flow rate of hot water passing through the recirculation circulation passage at the time of simultaneous combustion of reheating and hot water supply, thereby stabilizing the hot water temperature on the hot water supply side.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a main part control configuration of an embodiment of a data writing device and a bath device to which a circulating pump characteristic data storage method for a bath device according to the present invention is applied.
FIG. 2 is a system configuration diagram of the embodiment.
FIG. 3 is a graph showing an example of circulation pump characteristic data.
FIG. 4 is a system configuration diagram illustrating a model example of a single can / two water channel type bath apparatus.
[Explanation of symbols]
13 Reference circulation flow sensor
14 Circulation pump
16 Recurring circulation passage
34 Reheating combustion control unit
36 Data memory section
38 Circulating flow rate detector
39 Ammeter
40 Data writing device
41 Relational data production department
43 Data writing section

Claims (2)

浴槽湯水を追い焚き循環通路を通して循環させるための循環ポンプを備えた風呂装置内に、循環ポンプ駆動による浴槽湯水の循環流量制御に必要なデータを記憶するポンプデータメモリ部と循環ポンプに通電している電流を検出する電流検出手段とを設け、該風呂装置の外部に該風呂装置の前記追い焚き循環通路を循環する湯水の流量を検出する基準循環流量検出手段を設け、前記循環ポンプの駆動入力を可変させながら循環ポンプを駆動させて浴槽湯水を追い焚き循環通路を通して循環させたときの前記電流検出手段の検出電流に基づき求められる循環ポンプの消費電力と前記基準循環流量検出手段の検出流量との関係データを求めて該データを循環ポンプ特性データとして前記ポンプデータメモリ部に記憶させることを特徴とする風呂装置の循環ポンプ特性データ記憶方法。Energize the pump data memory unit and the circulation pump for storing the data necessary for the circulation flow control of the bathtub hot water by driving the circulation pump in the bath device equipped with a circulation pump for recirculating the bathtub hot water through the circulation passage. Current detecting means for detecting the current flowing, and provided with reference circulation flow rate detecting means for detecting the flow rate of hot water circulating in the recirculation circulation passage of the bath apparatus outside the bath apparatus, and driving input of the circulation pump When the circulating pump is driven while the temperature is varied and the bathtub hot water is recirculated through the circulating passage, the power consumption of the circulating pump obtained based on the detected current of the current detecting means and the detected flow rate of the reference circulating flow rate detecting means And storing the data as circulating pump characteristic data in the pump data memory unit. Circulation pump characteristic data storage method. 浴槽湯水を追い焚き循環通路を通して循環させるための循環ポンプを備えた風呂装置であって、循環ポンプ駆動による浴槽湯水の循環流量制御に必要なデータを記憶するポンプデータメモリ部と循環ポンプに通電している電流を検出する電流検出手段とを有し、該電流検出手段により検出された検出電流に基づき求められる循環ポンプの消費電力と請求項1記載の循環ポンプ特性データ記憶方法を用いて記憶した循環ポンプ特性データとに基づいて追い焚き循環通路を通る循環湯水の流量を検出する循環流量検出部を有し、循環ポンプ特性データから得られる電力情報に基づき追い焚き循環通路を通る浴槽湯水の循環流量制御を行う制御部を有することを特徴とする風呂装置。This is a bath device equipped with a circulation pump for recirculating bathtub hot water and circulating it through the circulation passage, and energizes the pump data memory unit and the circulation pump for storing data necessary for the circulation flow control of the bathtub hot water by the circulation pump drive. Current detecting means for detecting a current that is detected and stored using the circulating pump characteristic data storage method according to claim 1 and the power consumption of the circulating pump determined based on the detected current detected by the current detecting means A circulation flow rate detection unit that detects the flow rate of circulating hot water passing through the recirculation circulation path based on the circulation pump characteristic data, and the circulation of bathtub hot water passing through the recirculation circulation path based on the power information obtained from the circulation pump characteristic data A bath apparatus characterized by having a control unit for performing flow rate control.
JP21603597A 1997-07-25 1997-07-25 Circulating pump characteristic data storage method for bath apparatus and bath apparatus using circulating pump characteristic data stored using the method Expired - Fee Related JP3810187B2 (en)

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