JP4031139B2 - Bath water circulation device - Google Patents

Bath water circulation device Download PDF

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Publication number
JP4031139B2
JP4031139B2 JP06698199A JP6698199A JP4031139B2 JP 4031139 B2 JP4031139 B2 JP 4031139B2 JP 06698199 A JP06698199 A JP 06698199A JP 6698199 A JP6698199 A JP 6698199A JP 4031139 B2 JP4031139 B2 JP 4031139B2
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Prior art keywords
bath water
circulation
pipe
valve
bathtub
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JP2000266403A (en
JP2000266403A5 (en
Inventor
康雄 小川
長大 小玉
靖彦 小宮
浩一 浅井
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Janome Sewing Machine Co Ltd
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Janome Sewing Machine Co Ltd
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  • Control For Baths (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、いわゆる24時間風呂のような浴水循環装置において、熱水にて循環管路を洗浄する熱水洗浄前のエアー抜き動作時や、該熱水洗浄後の熱水排水時に、循環ポンプの吸込み口(プレフィルター等)の目詰まりが生じても、安全且つ確実に、熱水に浴水を混合して排水できる浴水循環装置における管路浄化装置に関する。この明細書では、熱水とは、摂氏60度乃至70℃程度の湯温とする。
【0002】
【従来の技術】
従来の、いわゆる24時間風呂と言われる浴水循環装置の多くは、浴水をろ過するためのろ過タンク以外に、プレフィルターと呼ばれる、人の毛髪や湯垢等の比較的大きなゴミを回収するためのスポンジ状のろ過手段を、循環ポンプの吸込み側に設けている。
【0003】
そのプレフィルターは、浴槽中に浮遊している毛髪等のゴミが循環ポンプ内に侵入して、該循環ポンプが停止,故障するという事態の発生を防止する働きがあり、日常簡便に浴水循環装置をメンテナンスできるろ過手段としても、手洗浄が可能である。
【0004】
このようなプレフィルターを使用した浴水循環装置は、該浴水循環装置本体内で循環管路を形成して、浴水をヒータで昇温させた熱水の循環により前記管路内の洗浄を行なうタイプの管路浄化装置を使用していることが多い。特に出願人は、特願平09−128938号にて、管路洗浄時には循環管路内の浴水をヒータにて高温にしつつ連結管路を介して循環管路を介して循環可能とし、排水時には、浴槽内の浴水と前記循環管路内で浄化した浴水とを混合させて浴槽の外側に排出可能とすることで、高温の熱水と非高温の浴水とを混合して排水し、熱水の排水を安全に行なうことのできる浴水循環装置における管路浄化装置を開示している。
【0005】
しかし、そのプレフィルターの毎日の手洗浄を数日でも怠ったり、大量の毛髪,湯垢等のゴミを捕集してしまうと、前記プレフィルターが目詰まりを起こして、浴水の循環流量が低下するという現象が起きる。
【0006】
かかる場合に熱水洗浄を強行すると、浴水の循環流量不足が原因で、前記浴水循環装置の循環管路内に滞留している湯温60℃前後の熱水を十分に排水できないことがある。また、熱水洗浄前のエアー抜きが不充分で上述のキャビテーション現象を起こし、浴水循環装置の循環ポンプが停止することもある。
【0007】
ここで、キャビテーション現象について説明する。「キャビテーション現象」とは、エアーの混入した湯がポンプ部内に入りこむことによって、ウォーターハンマー現象を誘発し、これにより前記循環ポンプが停止又は破損,故障する現象を言う。その「ウォーターハンマー現象」とは、一般的にポンプの浴水配管系統において、ポンプの電源が遮断等された場合に、そのポンプが停止するときに過大な騒音や振動を生じる現象をいい、水撃現象ともいう。
【0008】
これは、管内の流体の逆流を防止するための逆止弁や,配管の曲がり又は勾配等に起因する流体の過渡現象が、その管内に圧力変化を引き起こすことが原因である。一旦生じたその圧力変化は、衝撃圧の定在波となってその管内で往復し、運動エネルギーを消費して消滅するまで、激しい騒音や振動を繰り返すもので、この現象によって、配管自体や周辺機器が破損することもある。
【0009】
【発明が解決しようとする課題】
したがって、熱水にて循環管路を洗浄する熱水洗浄前のエアー抜き動作時や、該熱水洗浄後の熱水排水時に、前記プレフィルターの目詰まり等が生じても、安全且つ確実に熱水を排水できる、全く新規な、浴水循環装置における管路浄化装置の登場が待望されていた。
【0010】
【課題を解決するための手段】
そこで発明者は、前記課題を解決すべく、鋭意,研究を重ねた結果、本発明を、浴槽から浴水を汲み上げる循環ポンプと、微細なゴミ及び汚れ等の不純物を浴水からろ過するためのろ過タンクと、前記浴水を低温から高温に加熱するヒータと、前記浴水を殺菌する殺菌装置により浄化し再び前記浴槽に戻す循環管路とからなる浴水循環装置において、前記循環管路の流出側の管路に設けられた洗浄バルブと、該洗浄バルブに一端を連結し他端を前記循環管路の吸込み側の適宜な箇所と連結する連結管路と、前記循環ポンプの流出側循環管路の適宜の箇所に設けた排水バルブと、該排水バルブに一端を浴槽外に浴水を排水するため連結した排水管路とからなり、前記循環管路の流出側の管路に設けた前記洗浄バルブに前記浴槽に浴水を戻すための管路の一端を連結し他端に浴水を前記浴槽に排出する噴出部を設け、循環管路内に加熱された高温の浴水を循環させる熱洗浄後の熱水排水時には、前記洗浄バルブを駆動して前記連結管路を介して前記噴出部から浴槽内の浴水を吸い込み熱洗浄した浴水と混合し前記排水バルブを介し前記排水管路より排水することを特徴とする浴水循環装置としたことにより、熱洗浄後の熱水排水時に、前記吸込み側に目詰まりなどが生じても、安全且つ確実に熱水を排水でき、上記課題を解決したものである。
【0011】
【実施の形態】
以下、本発明の第1の実施の形態について図面に基づいて説明する。本発明の浴水循環装置における管路浄化装置は、図4に示すように、主に、微細なゴミ及び汚れ等の不純物を浴水からろ過するためのろ過タンクTと、浴水を低温から高温に加熱するヒータHと、浴水を殺菌する殺菌装置Sと、浴水を循環させるための循環ポンプPと、該循環ポンプPにて浴水を浴槽10から該浴槽10に循環させる循環管路14と、該循環管路14の吸込み側寄りの適宜な箇所と流出御寄りの適宜な箇所とを連結する連結管路bと、前記循環ポンプPの流出側の適宜の箇所に設けた排水バルブV1 と、前記循環ポンプPの吸込側で、前記連結管路nの接合部に設けた洗浄バルブV2 と、該洗浄バルブV2 から浴槽に排水する噴出部11とから構成される。
【0012】
前記ろ過タンクTは、精密フィルタ又は普通フィルタであり、活性石,活性炭を充填したものとして吸着剤濾材フィルタとして使用したり、或いは、織布又は不織布からなるフィルタ素材から構成するもの等が適用できるが、これらに限定されない。前記ヒータHは、浴水を低温から高温に加熱するものであり、ニクロム線,電熱線,熱電球その他のいかなる昇温手段が適用できる。
【0013】
前記殺菌装置Sは、浴水を殺菌又は滅菌するためのものであり、紫外線ランプその他のいかなる殺菌又は滅菌手段が適用できる。また、前記循環ポンプPは、浴水を循環管路14又は連結管路bを経由した閉ループ内で循環させるためのポンプであり、吸込側には管路m,kが、流出側には管路jが接続される。
【0014】
前記連結管路bは、循環管路14の吸込み側寄りの適宜な箇所と流出側寄りの適宜な箇所とを連結するように構成され、前記循環ポンプPと,ヒータHと,ろ過タンクTと,殺菌装置Sと,排水バルブV1 と,洗浄バルブV2 とを配置した循環管路14の一部と、連結管路bとで、閉ループが構成される(図4参照)。
【0015】
前記排水バルブV1 及び前記洗浄バルブV2 は、例えば三方弁が使用される。具体的には、排水バルブV1 は管路dと管路eとの途中に、洗浄バルブV2 は管路aと連結管路bとの途中に、それぞれ設ける。前記排水バルブV1 の吐出側(位置B)には、排水管路rの一端が連結され、該排水管路rの他端は、浴槽10外に流出するように構成されている。また、前記連結管路bの一端は前記管路cとの接合部と接続されており、その接続箇所には更に管路kが接続され,逆止弁13,管路mとを介して、浴槽の浴水を吸込むための吸込部12が設けられる。該吸込部12は、人の毛髪や湯垢等の比較的大なるゴミを捕集する、図示しないプレフィルタを内包する。
【0016】
管路浄化(熱洗浄)する際は、前記排水バルブV1 が位置ACにあって閉鎖され、排水管路rが遮断される。また、前記洗浄バルブV2 は位置BCにあって閉鎖され、管路aと連結管路bとが連通状態となる。これによって、循環管路14の一部と連結管路bとで前記循環ポンプP、ヒータH,ろ過タンクT,殺菌装置Sを配置した閉ループが構成され、この内部の浴水が循環ポンプPの動作にて循環する。
【0017】
ここで、浴水循環装置の熱洗浄は、前記ヒータHによって昇温された浴水,即ち熱水を各管路に循環させて洗浄するものであるが、本明細書における「熱水」とは、概ね60℃以上に昇温した浴水をいう。また、排水バルブV1 と洗浄バルブV2 とは、手動にて駆動制御されてもよいし、コンピュータ制御によってプログラムの実行処理に基づいて駆動制御される構成としても良い。
【0018】
図6は、熱洗浄後の混合排水時の構成を示す。排水バルブV1 は位置ABCにあって開放され、循環ポンプPから管路dを介して流入した浴水は、一部が管路eへ流出し、残りが排水管路rによって浴槽10外に排水される。かかる混合排水は、連結管路bから流入する浴水(熱水)と、吸込部12から吸い込まれた浴水とが混合され、循環ポンプPに吸い込まれて、排出バルブV1 に排出される。
【0019】
そして、該排出バルブV1 では、流入した浴水(熱水)の一部は排水管路rによって浴槽外へ排水され、残りは管路gに流出する。このようにすることで、図8のように閉ループで熱洗浄された後の熱水を、それよりもずっと温度の低い浴槽の浴水と混合させて浴槽外に排水することで、熱水の温度を十分低下させて排水させることができるので、人体へ火傷を追わせる事故等の発生を未然に防止することができる。
【0020】
その混合のための浴水吸込みは、浴槽内の吸込部12から前記循環ポンプPの吸引によって行なわれるが、その吸込部12内には図示しないプレフィルターが設けられ、人の毛髪や湯垢等が各管路内に侵入して循環ポンプP等が停止したり、管路が詰まったりするのを防止している。
【0021】
ところが、前記プレフィルターは上述の通り毎日のメンテナンスが必要であり、このメンテナンスを怠ると前記プレフィルター近傍にまで毛髪等が溜まり、図4に示すように、管路n,kを通して浴水を熱水と混合させることができない。その結果、浴水の循環量が低下するので、この状態で熱洗浄を行なうと浴水循環装置本体内の熱水が循環量不足で排水できなかったり、エアー抜きが不充分なため熱洗浄が途中で停止する等の不都合が生じることがある。
【0022】
そこで、前記洗浄バルブV2 を位置ABCとなるように駆動させる。すると、前記循環ポンプPは、依然、浴水の吸込みを続けている状態であるが、前記プレフィルターが目詰まりして管路m等から浴水の吸込みができなくても、連結管路bを介して前記噴出部11から浴槽の浴水を吸込みが可能となる。
【0023】
具体的には、前記洗浄バルブV2 は位置ABCにあるので、管路aから前記洗浄バルブV2 に流入した熱水の一部は、循環ポンプPの吸引力によって、まず連結管路bに流出する。そして、残りの熱水は、本来、管路jへ流出して噴出部11から浴槽10内に排水されるが、ここでは前記プレフィルタの目詰まりによって循環ポンプPの吸引力はほぼ全て洗浄バルブV2 に及ぶことになる。したがって、前記洗浄バルブV2 が位置ABCにあったとしても、循環ポンプPの吸引力によって、管路aから流入する全ての熱水は連結管路bに流出することとなる。
【0024】
通常の浄化時は、図7のような構成となる。即ち、洗浄バルブV2 は位置ACにあって、ろ過タンクTから流出されたろ過後の浴水が管路a,jを通って噴出部11から浴槽に排出される。また、吸込部12から吸い込まれた浴水は、管路m,逆止弁13,管路kを介して循環ポンプPに吸い込まれ、管路d,e,fを通って循環管路14を循環する。本明細書で、循環管路14とは、管路a,j,m,k,c,d,e,fで形成され、浴水が循環する管路の総称をいう。
【0025】
本明細書において、例えば「位置ABC」とは、排水バルブV1 及び洗浄バルブV2 の三方弁が、適当な管路とA,B及びCの3点で3方向に接続され、一の流入側から流入した浴水(熱水)が、他の2つの流出側のそれぞれ又はいずれかに流出するような位置をいう。同様に、例えば「位置AC」とは、排水バルブV1 及び洗浄バルブV2 の三方弁が、適当な管路とA及びCの2点で2方向に接続され、一の流入側から流入した浴水(熱水)が、他の流出側に流出するような位置をいう。
【0026】
また、本発明の浴水循環装置における管路浄化装置の第2の実施形態として、図5に示すような浴水循環装置における管路浄化装置も存在する。即ち、前記吸込部12の循環ポンプP側、好ましくは該吸込部12と前記逆止弁13との間(管路m)の適宜の位置に、図5(B)に示すような管路を開閉可能な開閉バルブV3 を設ける。
【0027】
その開閉バルブV3 を開いたとき〔図5(B)の状態〕には、循環ポンプPの吸引力によって浴槽内の浴水が吸込部12を介して吸い込まれ、開閉バルブV3 が閉じているときは、吸込部12からの浴水の吸上げは不可能になり、循環ポンプPの吸引力の全ては連結管路bを介して前記洗浄バルブV2 に向けられる。
【0028】
その結果、前記洗浄バルブV2 をABC位置に駆動することで、浴槽内の浴水が前記噴出部から吸い上げられることになる。前記吸込部12のプレフィルタが目詰まり等した場合も、前記開閉バルブV2 を閉じることで、吸込部12を完全に切り離すことができ、循環ポンプPの吸引力の全てを洗浄バルブV2 に向けることが可能となる。
【0029】
また、本発明の浴水循環装置における管路浄化装置の第3の実施形態として、図1及び図2に示すような浴水循環装置における管路浄化装置も存在する。即ち、図1は、本実施形態に係るブロック図であり、主に、本発明の浴水循環装置における管路浄化装置が実行する管路浄化プログラム等が記録又は記録されるROM(Read Only Memory),RAM(Random Access Memory)等の記憶手段21と、所定の時間を計測してタイミング信号(トリガ信号)を発生するタイマー手段22と、前記ヒータH,前記循環ポンプP,洗浄バルブV2 及び排水バルブV1 の駆動を制御する制御手段23と、前記循環管路14のいずれかの途中箇所に適宜に設けられ,通常の混合排水時に、浴水(又は熱水)の流量や排水温度を検知する検知手段24と、これらの各要素を管路浄化プログラムに基づいて適宜に制御するMPU20(中央処理装置:Micro Processor Unit)とからなる。
【0030】
前記記憶手段21は、管路浄化プログラムを記録したROM等の第1記憶手段21bと,RAM等の第2記憶手段21cと、前記洗浄バルブV1 及び前記排水バルブV2 の駆動回数を計測して記憶するバルブ駆動回数記憶手段21aとを含めることがあり、第1記憶手段21bは、ROM(Read Only Memory),PROM(Programmable ROM),EPROM(Erasable Programmable ROM) ,EEPROM(Electrically Erasable Programmable ROM),FROM(Flash ROM) ,コンパクトフラッシュカード(登録商標),スマートカード(登録商標),スマートメディア(登録商標)等のいかなるメモリ(記録媒体)でも適用可能とする。また、前記第2記憶手段21cは、RAM(Random Access Memory),DRAM(Dynamic RAM) ,SRAM(Static RAM),SDRAM等の書込み及び読出し自由ないかなるメモリ(記録媒体)でも適用可能とする。
【0031】
前記排水バルブ制御手段23dは、MPU20の指令信号に基づき、前記排水バルブV1 を制御する。この排水バルブV1 を回転制御することにより、流水経路を1方向又は2方向に制御する。本明細書では、バルブが回転制御されて流水経路が1方向又は2方向に切換わることを、特に「駆動」ということがある。
【0032】
前記バルブ駆動回数記憶手段21aは、前記排水バルブV1 及び前記洗浄バルブV2 の駆動回数を計測して記憶するRAM等のメモリであり、回転センサー,光学センサー,カウンタ回路その他のいかなる手段によってバルブの駆動回数を検出し、記憶する。駆動回数については、前記排水バルブV1 の流水経路が1方向から2方向に切換わって再度1方向に切り戻されたことを「1回」とカウントする。具体的には、前記MPU20が、前記バルブ駆動回数記憶手段21aの適宜の記憶領域に設けたカウンタ値を1ずつ増加させる。
【0033】
前記洗浄バルブ制御手段23cは、MPU20の指令信号に基づき、洗浄バルブV2 の駆動を制御する。この排水バルブV1 の駆動を制御することにより、浴水循環装置内にて循環管路14を形成したり、浴槽10に湯の一部を放出したりする。
【0034】
前記循環ポンプ制御手段23bは、MPU20の指令信号に基づき、前記循環ポンプPを制御する。即ち、循環ポンプ制御手段18が、この循環ポンプPの運転開始,停止,運転速度等を制御することにより、前記排水バルブV1 及び洗浄バルブ制御手段23cの駆動と相俟って、吸込部12(プレフィルター等)の目詰まりが生じても、安全且つ確実に、熱水に浴水を混合して排水する。
【0035】
前記ヒータ制御手段23aは、MPU20の指令信号に基づき、前駆ヒータHを制御する。そして、ヒータ制御手段23aは、このヒータHの発熱量(又は電流、電圧,電力等)を監視,制御して、温度にして60℃から70℃程度の熱水に昇温させ、一定時間その温度を維持したり、又は昇温を停止して湯の温度を下げたりする。
【0036】
前記タイマー手段22は、前記排水バルブV1 又は前記洗浄バルブ制御手段23cを待機させるべき時間の設定,該待機の監視及び制御を実行するものであり、具体的には、フリップフロップ回路,タイマー回路等のハードウェアや、何も処理を実行しないコマンド(「WAIT文等」)をBASICでいうところの「FOR 〜NEXT文」に相当するループ制御で所定回数実行し、何も実行しない(ヌルの)時間を適宜設けて待機状態を作ったり、所定時間毎にタイミング信号を送出して他の処理の実行を促がすソフトウェアの実行処理,機械接点その他のいかなる手段でも適用できる。
【0037】
前記検知手段24は、前記循環管路14のいずれかの途中箇所に適宜に設けられ,通常の混合排水時に、浴水(又は熱水)の流量や排水温度を検知する。具体的には、浴水(又は熱水)の流量を検知する流量センサ24aと,浴水(又は熱水)の排水温度を検知する排水温度センサ24bとを有する。これらはいずれも回転センサ,光学センサ,その他のいかなるセンサでも適用できる。
【0038】
次に、図2は、本実施形態のフローチャートである。まず、本発明の浴水循環装置における管路浄化装置は、前記吸込部12のみから浴水の吸込みを行なう、通常の混合排水処理を実行する(S100)。ここで、「混合排水処理」とは、熱洗浄で70℃まで昇温された浴水循環装置内の浴水(熱水)を、それよりもかなり温度の低い浴槽10内の浴水(一般に40℃前後)と混合し、安全に浴水循環装置本体外に排水管路rから排水する処理をいう。
【0039】
そして、再び閉ループを形成して、好ましくは約20秒程度循環するよう、タイマー手段22の設定に基づいて制御される(S101)。前記排水温度センサ24bの検知によって、本体内の浴水温度が50℃に下がっていなかったら(S102)、S100及びS101を所定回数(例えば20回)に達するまで繰り返し実行する(S103)。
【0040】
そして、その所定回数に到達したら、吸込み側が閉塞していると判断して、洗浄バルブ制御手段23cは、前記洗浄バルブV2 を位置ABCに駆動制御し(S104)、噴出部12から浴槽10内の浴水吸込みを開始する(S105)。
【0041】
また、S102で本体内の浴水温度が50℃以下に下がっていれば、前記タイマー手段22の監視制御の下、前記排水バルブV1 及び前記洗浄バルブV2 の駆動を制御して、数十秒程度の連続混合排水を行い(S106)、本体内の浴水温度を浴槽10内の浴水の温度と概ね等しくした後(S107)、通常浄化運転に戻る(S108)。このような制御を行なうことで、吸込部12が閉塞してしまった場合でも、安全に熱水を本体外に排水することができる。
【0042】
また、本発明の浴水循環装置における管路浄化装置の第4の実施形態として、図1及び図3に示すような浴水循環装置における管路浄化装置も存在する。図3は本実施形態のフローチャートである。まず、本発明の浴水循環装置における管路浄化装置は、通常の混合排水処理を実行する(S200)。
【0043】
そして、前記排水温度センサ24bの検知する温度が高い場合(例えば50℃以上)、混合がうまくいっていない、つまり浴槽10からよ浴水を吸い込めない状態だと判断し(S201)、洗浄バルブ制御手段23cが、前記洗浄バルブV2 を位置ABCに駆動制御し(S203)、噴出部12から浴槽10内の浴水吸込みを開始する(S204)。
【0044】
また、S201で排水温度が十分低いと検知された場合は、前記流量センサ24aが浴水の流量を検知することで、吸込部12が詰まっているかを判断する(S202)。浴水の流量が減っている(又は設定した量よりも少ない)場合は、S203以降の処理を実行する。
【0045】
また、流量が十分あると判断される場合は、前記タイマー手段22の監視制御の下、前記排水バルブV1 及び前記洗浄バルブV2 の駆動を制御して、数十秒程度の連続混合排水を行い(SS205)、本体内の浴水温度を浴槽10内の浴水の温度と概ね等しくした後(S206)、通常浄化運転に戻る(S207)。このような制御を行ないことで、吸込部12が閉塞してしまった場合でも、安全に熱水を本体外に排水することができる。
【0046】
上述した本発明の浴水循環装置における管路浄化装置は、管路浄化プログラムとして実現することができ、該プログラムは記録媒体に記録されて提供されることがある。本明細書で「記録媒体」とは、図9のように、フロッピーディスク30a、RAM(Random Access Disk)又はROM(Read Only Memory)等のチップ型記録媒体30b、CD−ROM(Compact Disk-ROM),MO(Magneto Optical)ディスク,DVD(Digital Video Disk)−ROMディスク,DVD−RAMディスク等のディスク型記録媒体30c,スマートカード(登録商標),スマートメディア(登録商標),PROM(Programmable ROM ),EPROM(Erasable Programmable ROM ),EEPROM(Electrically Erasable Programmable ROM),フラッシュROM等のカード型記録ディスク30d,ハードディスク30e,その他のいかなるコンピュータ読取り可能な記録媒体をいう。「コンピュータ」とは、いわゆるパーソナルコンピュータ(PC),汎用機、専用機の他、チップ型記録媒体30bを差し込むソケットを有したROM書き換え装置や、前記フロッピーディスク30a,ディスク型記録媒体30c等を読み出し又は書き込み可能なリーダ又はライタを含む概念とする。
【0047】
【発明の効果】
まず、請求項1の発明では、プレフィルター等が目詰まりしたとしても、熱水を浴水と確実に混合させて、温度を低下させたうえで安全に排水することができるという極めて優れた効果を有する。すなわち、浴水排水時には、前記噴出部11から浴槽10内の浴水を吸い込んで前記循環管路14内の熱水と混合させて浴槽10の外側に排出するように前記洗浄バルブV2を駆動することにより、洗浄バルブV2において、管路aから流入した熱水(又は浴水)は、循環ポンプPの吸引力が十分なので、管路jへは流出せずに全て連結管路bへ流出させることができる。
【0048】
更に、前記循環ポンプPの吸引力は管路jへも到達するので、浴槽10内の浴水を前記管路jを介して吸い上げることもできる。その結果、前記噴出部11にて十分な量の浴槽10内の浴水を吸い上げることができ、循環管路14を通る熱水(又は浴水)と混合させることができるので、プレフィルター等が目詰まりしたときでも、熱水を浴水と確実に混合させて、温度を低下させたうえで安全に排水することができるという極めて優れた効果を有する。
【0049】
また、請求項2の発明では、請求項1記載において、前記吸込部12の循環ポンプP側の適宜の箇所に管路の開閉可能な開閉バルブV3 を設けた浴水循環装置における管路浄化装置としたことにより、以下のような優れた効果を生じる。
【0050】
即ち、前記吸込部12の循環ポンプP側の適宜の箇所に管路の開閉可能な開閉バルブV3 を設けたことによって、前記プレフィルタが目詰まりしたしないに関わらず、管路m又はkを確実に開閉制御することができる。したがって、該開閉バルブV3 を閉じれば管路m又はkが確実に閉じるので、プレフィルタが目詰まり等して中途半端な量の浴水しか吸い上げできない状態のときには、前記開閉バルブV3 を閉じることで前記噴出部11のみから浴槽10内の浴水を吸い込むことができる。
【0051】
その結果、前記噴出部11のみをもって十分な量の浴槽10内の浴水を吸い上げることができ、循環管路14を通る熱水と混合させることができるので、プレフィルター等が目詰まりしたときでも、請求項1の発明による優れた効果に加え、熱水と浴水とをより確実に混合させて、温度を低下させたうえでより安全に排水することができるという極めて優れた効果を有する。
【0052】
請求項3の発明では、プレフィルター等が目詰まりしたときでも、熱水と浴水とを混合させて温度を低下させたうえで安全に排水するよう、確実に制御できるという極めて優れた効果を有する。即ち、前記洗浄バルブ駆動手段23cは、浴水排水時において前記噴出部11と前記吸込部12とから浴槽10内の浴水を吸い込むよう前記洗浄バルブV2 の駆動を制御するとしたことにより、洗浄バルブV2 において、管路aから流入した熱水(又は浴水)は、循環ポンプPの吸引力が十分なので、管路jへは流出せずに全て連結管路bへ確実に流出させることができる。
【0053】
更に、前記循環ポンプPの吸引力は管路jへも到達するので、浴槽10内の浴水を該管路jを介して確実に吸い上げることもできる。その結果、前記噴出部11から十分な量の浴槽10内の浴水を確実に吸い上げることができ、循環管路14を通る熱水と確実に混合させることができるので、プレフィルター等が目詰まりしたときでも、熱水と浴水とを混合させて、温度を低下させたうえで安全且つ確実に排水することができるという極めて優れた効果を有する。
【図面の簡単な説明】
【図1】本発明の浴水循環装置における管路浄化装置の第3実施形態に係るブロック図
【図2】本発明の浴水循環装置における管路浄化装置の第3実施形態に係るフローチャート
【図3】本発明の浴水循環装置における管路浄化装置の第4実施形態に係るフローチャート
【図4】本発明の第1実施形態において、噴出部から浴水を吸込んで排水管路から排水するときの略示図
【図5】(A)は、本発明の第2実施形態において、開閉バルブが閉じていて噴出部のみから浴水を吸込むときの略示図
(B)は、(A)における開閉バルブの拡大断面図
【図6】通常の熱洗浄後の混合排水を示す略示図
【図7】通常の浄化時を示す略示図
【図8】熱洗浄時における閉ループを示す略示図
【図9】本発明の浴水循環装置における管路浄化装置が実行する管路浄化プログラムの記録したコンピュータ読取り可能な記録媒体の一例を示す概念図
【符号の説明】
10…浴槽
11…噴出部
12…吸込部
14…循環管路
1 …排水バルブ
2 …洗浄バルブ
3 …開閉バルブ
b…連結管路
P…循環ポンプ
[0001]
[Industrial application fields]
The present invention relates to a circulation pump in a bath water circulation apparatus such as a so-called 24-hour bath, during an air venting operation before hot water washing for washing a circulation pipe with hot water, or during hot water drainage after the hot water washing. The present invention relates to a pipe purification device in a bath water circulation device that can safely and reliably mix bath water with hot water even if clogging of a suction port (such as a prefilter) occurs. In this specification, hot water is a hot water temperature of about 60 to 70 degrees Celsius.
[0002]
[Prior art]
Many of the conventional bath water circulation devices called so-called 24-hour baths are used to collect relatively large garbage, such as human hair and scales, called pre-filters, in addition to a filtration tank for filtering bath water. Sponge-like filtering means is provided on the suction side of the circulation pump.
[0003]
The pre-filter has a function to prevent the occurrence of a situation in which dust such as hair floating in the bathtub enters the circulation pump and the circulation pump stops and breaks down. As a filtering means that can maintain the filter, hand washing is possible.
[0004]
The bath water circulator using such a prefilter forms a circulation pipeline in the bath water circulator main body, and cleans the pipeline by circulating hot water in which the bath water is heated by a heater. Often uses a type of pipe purifier. In particular, in Japanese Patent Application No. 09-12938, the applicant made it possible to circulate through the circulation line through the connection line while making the bath water in the circulation line high at the heater at the time of washing the line. Sometimes, hot water and non-hot bath water are mixed and drained by mixing the bath water in the bathtub and the bath water purified in the circulation pipe and allowing it to be discharged outside the bathtub. In addition, a pipe line purification device in a bath water circulation device that can safely discharge hot water is disclosed.
[0005]
However, if the pre-filter is washed every day for a few days or if a large amount of hair, dirt, etc. is collected, the pre-filter will become clogged and the circulating water flow rate will decrease. A phenomenon occurs.
[0006]
If hot water washing is forcibly performed in such a case, hot water around 60 ° C. hot water staying in the circulation pipe of the bath water circulation device may not be sufficiently drained due to insufficient circulation of the bath water. . Moreover, the air venting before hot water washing | cleaning is inadequate, raise | generates the above-mentioned cavitation phenomenon, and the circulating pump of a bath water circulation apparatus may stop.
[0007]
Here, the cavitation phenomenon will be described. The “cavitation phenomenon” refers to a phenomenon in which hot water mixed with air enters the pump portion to induce a water hammer phenomenon, whereby the circulating pump stops, breaks, or breaks down. The “water hammer phenomenon” generally refers to a phenomenon that causes excessive noise or vibration when the pump stops when the pump power is cut off in the bath water piping system of the pump. It is also called a hit phenomenon.
[0008]
This is because a check valve for preventing the back flow of the fluid in the pipe or a fluid transient caused by bending or gradient of the pipe causes a pressure change in the pipe. Once the pressure change has occurred, it becomes a standing wave of shock pressure, reciprocates in the pipe, and repeats intense noise and vibration until it consumes kinetic energy and disappears. Equipment can be damaged.
[0009]
[Problems to be solved by the invention]
Therefore, even if clogging of the pre-filter occurs during the air venting operation before hot water washing to wash the circulation pipe with hot water or during hot water drainage after the hot water washing, it is safe and reliable. There was a long-awaited appearance of a completely new water purification system for bath water circulation systems that can drain hot water.
[0010]
[Means for Solving the Problems]
Therefore, as a result of earnestly researching the present inventors to solve the above-mentioned problems, the present invention is designed to circulate pumps for bath water from a bathtub and to filter impurities such as fine dust and dirt from bath water. In a bath water circulator comprising a filtration tank, a heater for heating the bath water from a low temperature to a high temperature, and a circulation pipe that is purified by a sterilizer that sterilizes the bath water and returns to the bathtub again, the outflow of the circulation pipe A cleaning valve provided in the pipe on the side, a connecting pipe connecting one end to the cleaning valve and connecting the other end to an appropriate portion on the suction side of the circulation pipe, and an outflow side circulation pipe of the circulation pump A drainage valve provided at an appropriate location of the path, and a drainage pipe connected to the drainage valve for draining the bath water to the outside of the bathtub, and provided in the pipe on the outflow side of the circulation pipe To return bath water to the bathtub to the wash valve At the time of hot water drainage after hot cleaning, which is connected to one end of a pipe line and provided with a jet part for discharging bath water to the bathtub at the other end, the hot bath water heated in the circulation pipe is circulated. Bath water circulating apparatus, wherein the bath water in the bathtub is sucked from the jetting part through the connecting pipe line and mixed with the heat-washed bath water and drained from the drain pipe through the drain valve As a result, even when clogging or the like occurs on the suction side during hot water drainage after hot cleaning, the hot water can be drained safely and reliably, thus solving the above problems.
[0011]
Embodiment
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 4, the pipe purification apparatus in the bath water circulation apparatus of the present invention mainly includes a filtration tank T for filtering impurities such as fine dust and dirt from the bath water, and the bath water from a low temperature to a high temperature. A heater H that heats the water, a sterilizer S that sterilizes the bath water, a circulation pump P for circulating the bath water, and a circulation line that circulates the bath water from the bathtub 10 to the bathtub 10 by the circulation pump P 14, a connecting pipe line b connecting an appropriate part near the suction side of the circulation pipe 14 and an appropriate part near the outflow side, and a drain valve provided at an appropriate place on the outflow side of the circulation pump P V 1 And a cleaning valve V provided at the joint of the connection pipe n on the suction side of the circulation pump P 2 And the washing valve V 2 It is comprised from the ejection part 11 which drains to a bathtub.
[0012]
The filtration tank T is a precision filter or an ordinary filter, and can be used as an adsorbent filter medium filter filled with activated stone or activated carbon, or can be constructed of a filter material made of woven or non-woven fabric. However, it is not limited to these. The heater H heats the bath water from a low temperature to a high temperature, and any heating means such as a nichrome wire, a heating wire, a heat bulb or the like can be applied.
[0013]
The sterilizer S is for sterilizing or sterilizing bath water, and any sterilization or sterilization means such as an ultraviolet lamp can be applied. The circulation pump P is a pump for circulating the bath water in a closed loop via the circulation line 14 or the connecting line b, and the lines m and k are provided on the suction side and the pipes are provided on the outflow side. Path j is connected.
[0014]
The connection pipe b is configured to connect an appropriate place near the suction side and an appropriate place near the outflow side of the circulation pipe 14, and the circulation pump P, the heater H, the filtration tank T, and the like. , Sterilizer S and drain valve V 1 And cleaning valve V 2 And a part of the circulation line 14 in which the two are arranged and the connection line b constitute a closed loop (see FIG. 4).
[0015]
The drain valve V 1 And the washing valve V 2 For example, a three-way valve is used. Specifically, drain valve V 1 Is in the middle of the pipe line d and the pipe line e. 2 Are provided in the middle of the pipe line a and the connecting pipe line b. The drain valve V 1 One end of the drainage pipe r is connected to the discharge side (position B), and the other end of the drainage pipe r is configured to flow out of the bathtub 10. In addition, one end of the connecting pipe b is connected to a joint portion with the pipe c, and a pipe k is further connected to the connecting portion, via the check valve 13 and the pipe m, A suction part 12 for sucking bath water in the bathtub is provided. The suction part 12 includes a prefilter (not shown) that collects relatively large dust such as human hair and scale.
[0016]
When purifying the pipe (heat washing), the drain valve V 1 Is closed at position AC and the drain line r is blocked. The cleaning valve V 2 Is closed at the position BC, and the conduit a and the connecting conduit b are in communication. Thereby, a closed loop in which the circulation pump P, the heater H, the filtration tank T, and the sterilizer S are arranged is constituted by a part of the circulation line 14 and the connection line b. Cycles with movement.
[0017]
Here, the hot cleaning of the bath water circulation device is performed by circulating the bath water heated by the heater H, that is, hot water through each pipe line. It means the bath water heated to approximately 60 ° C. or higher. Also, drain valve V 1 And cleaning valve V 2 The drive control may be performed manually, or a drive control may be performed based on a program execution process by computer control.
[0018]
FIG. 6 shows a configuration at the time of mixed drainage after heat washing. Drain valve V 1 Is opened at position ABC, and a part of the bath water flowing in from the circulation pump P through the pipe line d flows out to the pipe line e, and the rest is drained out of the bathtub 10 by the drain pipe line r. The mixed waste water is mixed with the bath water (hot water) flowing in from the connection pipe b and the bath water sucked in from the suction portion 12 and sucked into the circulation pump P, and the discharge valve V 1 To be discharged.
[0019]
And the discharge valve V 1 Then, a part of the flowing bath water (hot water) is drained out of the bathtub by the drain pipe r, and the rest flows out to the pipe g. By doing so, the hot water after being hot-washed in a closed loop as shown in FIG. 8 is mixed with the bath water of the bath whose temperature is much lower than that and discharged outside the bath. Since the temperature can be sufficiently lowered and drained, it is possible to prevent the occurrence of an accident or the like that causes a burn to the human body.
[0020]
Bath water suction for the mixing is performed by suction of the circulation pump P from the suction portion 12 in the bathtub, and a pre-filter (not shown) is provided in the suction portion 12 so that human hair, scale, etc. It prevents the circulation pump P and the like from entering each pipeline and stopping the pipeline or clogging the pipeline.
[0021]
However, the prefilter requires daily maintenance as described above, and if this maintenance is neglected, the hair and the like accumulates in the vicinity of the prefilter, and the bath water is heated through the pipes n and k as shown in FIG. Cannot be mixed with water. As a result, the circulation rate of the bath water decreases, so if hot cleaning is performed in this state, the hot water in the bath water circulation device main body cannot be drained due to insufficient circulation amount, or the air cleaning is not enough and the thermal cleaning is in progress. Inconveniences such as stopping at may occur.
[0022]
Therefore, the cleaning valve V 2 Is driven to position ABC. Then, the circulation pump P is still in the state of continuing the suction of the bath water, but even if the prefilter is clogged and the bath water cannot be sucked in from the conduit m or the like, the connection conduit b The bath water in the bathtub can be sucked in from the jetting part 11 through.
[0023]
Specifically, the cleaning valve V 2 Is at position ABC, so that the washing valve V is connected from the pipe a. 2 Part of the hot water that has flowed into the pipe first flows out into the connecting line b by the suction force of the circulation pump P. The remaining hot water originally flows out into the pipe j and is drained from the ejection part 11 into the bathtub 10, but here, the suction force of the circulation pump P is almost all due to clogging of the prefilter. V 2 It will extend to. Therefore, the washing valve V 2 Even if it exists in position ABC, with the attraction | suction force of the circulation pump P, all the hot water which flows in from the pipe line a will flow out into the connection pipe line b.
[0024]
During normal purification, the configuration is as shown in FIG. That is, the cleaning valve V 2 Is at the position AC, and the filtered bath water flowing out from the filtration tank T is discharged from the ejection part 11 to the bathtub through the pipes a and j. Further, the bath water sucked from the suction portion 12 is sucked into the circulation pump P through the pipe m, the check valve 13 and the pipe k, and passes through the pipes d, e, and f through the circulation pipe 14. Circulate. In this specification, the circulation pipeline 14 is a general term for pipelines formed by pipelines a, j, m, k, c, d, e, and f through which bath water circulates.
[0025]
In this specification, for example, “position ABC” means the drain valve V 1 And cleaning valve V 2 The three-way valve is connected to an appropriate pipe line in three directions at three points A, B and C, and bath water (hot water) flowing in from one inflow side is connected to each of the other two outflow sides or any one of them. A position that leaks out. Similarly, for example, “position AC” means the drain valve V 1 And cleaning valve V 2 The three-way valve is connected in two directions at two points A and C, and the bath water (hot water) flowing in from one inflow side flows out to the other outflow side. .
[0026]
Further, as a second embodiment of the pipe purification device in the bath water circulation apparatus of the present invention, there is also a pipe purification apparatus in the bath water circulation apparatus as shown in FIG. That is, a pipe line as shown in FIG. 5B is provided at an appropriate position between the suction part 12 and the circulation pump P, preferably between the suction part 12 and the check valve 13 (pipe line m). Openable / closable valve V Three Is provided.
[0027]
The open / close valve V Three Is opened [state of FIG. 5 (B)], the bath water in the bathtub is sucked in through the suction part 12 by the suction force of the circulation pump P, and the open / close valve V Three Is closed, the suction of the bath water from the suction portion 12 becomes impossible, and all of the suction force of the circulation pump P is connected to the washing valve V via the connecting line b. 2 Directed to.
[0028]
As a result, the cleaning valve V 2 By driving to the ABC position, the bath water in the bathtub is sucked up from the ejection part. Even when the pre-filter of the suction portion 12 is clogged, the open / close valve V 2 The suction part 12 can be completely separated by closing the suction valve, and all the suction power of the circulation pump P can be removed from the cleaning valve V. 2 It becomes possible to turn to.
[0029]
Further, as a third embodiment of the pipe purification device in the bath water circulation apparatus of the present invention, there is also a pipe purification apparatus in the bath water circulation apparatus as shown in FIGS. That is, FIG. 1 is a block diagram according to the present embodiment, and mainly a ROM (Read Only Memory) in which a pipeline purification program executed by the pipeline purification apparatus in the bath water circulation apparatus of the present invention is recorded or recorded. Storage means 21 such as RAM (Random Access Memory), timer means 22 for measuring a predetermined time and generating a timing signal (trigger signal), the heater H, the circulation pump P, and the cleaning valve V 2 And drain valve V 1 A control means 23 for controlling the driving of the water and a detection means which is appropriately provided at any midpoint of the circulation pipe 14 and detects the flow rate of the bath water (or hot water) and the temperature of the waste water during normal mixed drainage. 24 and an MPU 20 (central processing unit: Micro Processor Unit) that appropriately controls each of these elements based on a pipeline purification program.
[0030]
The storage means 21 includes a first storage means 21b such as a ROM in which a pipeline purification program is recorded, a second storage means 21c such as a RAM, and the cleaning valve V. 1 And the drain valve V 2 The first drive means 21b includes a ROM (Read Only Memory), a PROM (Programmable ROM), an EPROM (Erasable Programmable ROM), and an EEPROM. Any memory (recording medium) such as (Electrically Erasable Programmable ROM), FROM (Flash ROM), Compact Flash Card (registered trademark), Smart Card (registered trademark), or SmartMedia (registered trademark) can be applied. The second storage means 21c can be applied to any memory (recording medium) that can be freely written and read, such as RAM (Random Access Memory), DRAM (Dynamic RAM), SRAM (Static RAM), and SDRAM.
[0031]
The drain valve control means 23d is configured to control the drain valve V based on a command signal from the MPU 20. 1 To control. This drain valve V 1 By controlling the rotation, the flowing water path is controlled in one direction or two directions. In this specification, when the valve is rotationally controlled and the flowing water path is switched in one direction or two directions, it may be particularly referred to as “drive”.
[0032]
The valve drive number storage means 21a is provided with the drain valve V 1 And the washing valve V 2 Is a memory such as a RAM that measures and stores the number of times of driving, and detects and stores the number of times the valve is driven by any means such as a rotation sensor, an optical sensor, a counter circuit, or the like. For the number of times of driving, the drain valve V 1 It is counted as “one time” when the flowing water path is switched from one direction to two directions and switched back to one direction again. Specifically, the MPU 20 increases the counter value provided in an appropriate storage area of the valve drive number storage means 21a by one.
[0033]
The cleaning valve control means 23c is based on a command signal from the MPU 20, and the cleaning valve V 2 Control the drive. This drain valve V 1 By controlling the driving of, the circulation line 14 is formed in the bath water circulation device, or a part of the hot water is discharged into the bathtub 10.
[0034]
The circulation pump control means 23b controls the circulation pump P based on a command signal from the MPU 20. That is, the circulation pump control means 18 controls the start, stop, operation speed, etc. of the circulation pump P, so that the drain valve V 1 In combination with the driving of the cleaning valve control means 23c, even if the suction part 12 (prefilter or the like) is clogged, the hot water is mixed with the hot water and drained safely.
[0035]
The heater control unit 23a controls the precursor heater H based on a command signal from the MPU 20. Then, the heater control means 23a monitors and controls the heat generation amount (or current, voltage, power, etc.) of the heater H, raises the temperature to hot water of about 60 ° C. to 70 ° C. The temperature is maintained, or the temperature rise is stopped and the temperature of the hot water is lowered.
[0036]
The timer means 22 has the drain valve V 1 Alternatively, it sets the time for which the washing valve control means 23c should be on standby, and performs monitoring and control of the standby, specifically, hardware such as a flip-flop circuit and a timer circuit, and any processing. A command that is not executed (“WAIT statement, etc.”) is executed a predetermined number of times by loop control corresponding to “FOR to NEXT statement” in BASIC, and a standby state is created by appropriately setting a time when nothing is executed (null). It is possible to apply software execution processing, mechanical contact, or any other means for sending out a timing signal every predetermined time to prompt execution of other processing.
[0037]
The detection means 24 is appropriately provided at any midpoint of the circulation pipe 14 and detects the flow rate and drainage temperature of bath water (or hot water) during normal mixed drainage. Specifically, it has a flow rate sensor 24a for detecting the flow rate of the bath water (or hot water) and a drainage temperature sensor 24b for detecting the drainage temperature of the bath water (or hot water). All of these can be applied to rotation sensors, optical sensors, and any other sensors.
[0038]
Next, FIG. 2 is a flowchart of this embodiment. First, the pipe purification device in the bath water circulation apparatus of the present invention executes a normal mixed waste water treatment in which bath water is sucked only from the suction section 12 (S100). Here, “mixed wastewater treatment” refers to the bath water (hot water) in the bath water circulation apparatus heated to 70 ° C. by heat washing, and the bath water (generally 40 Is a process of safely draining from the drain pipe r to the outside of the bath water circulation device main body.
[0039]
Then, control is performed based on the setting of the timer means 22 so as to form a closed loop again and preferably circulate for about 20 seconds (S101). If the bath water temperature in the main body is not lowered to 50 ° C. by the detection of the waste water temperature sensor 24b (S102), S100 and S101 are repeatedly executed until a predetermined number of times (for example, 20 times) is reached (S103).
[0040]
Then, when the predetermined number of times is reached, it is determined that the suction side is closed, and the cleaning valve control means 23c determines that the cleaning valve V 2 Is controlled to the position ABC (S104), and suction of the bath water in the bathtub 10 is started from the ejection part 12 (S105).
[0041]
If the bath water temperature in the main body is lowered to 50 ° C. or less in S102, the drain valve V is monitored under the control of the timer means 22. 1 And the washing valve V 2 Is controlled to perform continuous mixed drainage for about several tens of seconds (S106), the bath water temperature in the main body is made substantially equal to the bath water temperature in the bathtub 10 (S107), and then the normal purification operation is returned to. (S108). By performing such control, hot water can be safely drained outside the main body even when the suction portion 12 is blocked.
[0042]
Further, as a fourth embodiment of the pipe purification device in the bath water circulation apparatus of the present invention, there is also a pipe purification apparatus in the bath water circulation apparatus as shown in FIGS. FIG. 3 is a flowchart of this embodiment. First, the pipe purification device in the bath water circulation device of the present invention performs a normal mixed waste water treatment (S200).
[0043]
If the temperature detected by the waste water temperature sensor 24b is high (for example, 50 ° C. or higher), it is determined that the mixing is not successful, that is, the bath water cannot be sucked from the bathtub 10 (S201). The means 23c is provided with the washing valve V 2 Is controlled to the position ABC (S203), and suction of the bath water in the bathtub 10 is started from the ejection part 12 (S204).
[0044]
If it is detected in S201 that the drainage temperature is sufficiently low, the flow rate sensor 24a detects the flow rate of the bath water to determine whether the suction unit 12 is clogged (S202). When the flow rate of the bath water is decreasing (or less than the set amount), the processing after S203 is executed.
[0045]
When it is determined that the flow rate is sufficient, the drain valve V is monitored under the control of the timer means 22. 1 And the washing valve V 2 Is controlled to perform continuous mixed drainage for about several tens of seconds (SS205), the bath water temperature in the main body is substantially equal to the bath water temperature in the bathtub 10 (S206), and then the normal purification operation is returned to. (S207). By performing such control, even when the suction part 12 is blocked, hot water can be safely drained outside the main body.
[0046]
The above-described pipe purification apparatus in the bath water circulation apparatus of the present invention can be realized as a pipe purification program, and the program may be recorded on a recording medium and provided. In this specification, “recording medium” means a floppy disk 30a, a chip type recording medium 30b such as a RAM (Random Access Disk) or a ROM (Read Only Memory), a CD-ROM (Compact Disk-ROM) as shown in FIG. ), MO (Magneto Optical) disk, DVD (Digital Video Disk) -ROM disk, DVD-RAM disk and other disk-type recording medium 30c, Smart Card (registered trademark), Smart Media (registered trademark), PROM (Programmable ROM) , An EEPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a card-type recording disk 30d such as a flash ROM, a hard disk 30e, or any other computer-readable recording medium. “Computer” reads out a so-called personal computer (PC), general-purpose machine, dedicated machine, ROM rewrite device having a socket into which the chip-type recording medium 30b is inserted, the floppy disk 30a, the disk-type recording medium 30c, etc. Alternatively, the concept includes a writable reader or writer.
[0047]
【The invention's effect】
First, in the invention of claim 1, even if the prefilter or the like is clogged, the hot water can be reliably mixed with the bath water, and the temperature can be lowered and drained safely. Have That is, at the time of draining the bath water, the washing valve V2 is driven so that the bath water in the bathtub 10 is sucked from the ejection portion 11 and mixed with the hot water in the circulation pipe 14 and discharged to the outside of the bathtub 10. As a result, in the cleaning valve V2, the hot water (or bath water) that has flowed from the pipe a has a sufficient suction force of the circulation pump P, and therefore does not flow to the pipe j but to the connecting pipe b. be able to.
[0048]
Furthermore, since the suction force of the circulation pump P reaches the pipe line j, the bath water in the bathtub 10 can be sucked up through the pipe line j. As a result, a sufficient amount of the bath water in the bathtub 10 can be sucked up by the jetting part 11 and can be mixed with hot water (or bath water) passing through the circulation line 14, so that a prefilter or the like can be used. Even when clogged, the hot water is reliably mixed with the bath water so that the temperature can be lowered and drained safely.
[0049]
According to a second aspect of the present invention, in the first aspect of the present invention, the opening / closing valve V capable of opening and closing a pipe line at an appropriate location on the circulation pump P side of the suction portion 12. Three By using the pipe purification device in the bath water circulation device provided with the above, the following excellent effects are produced.
[0050]
That is, an opening / closing valve V that can open and close a pipe line at an appropriate location on the circulation pump P side of the suction portion 12. Three Thus, the pipe m or k can be reliably controlled to open and close regardless of whether the prefilter is clogged. Therefore, the on-off valve V Three Since the pipe m or k is securely closed when the valve is closed, when the pre-filter is clogged or the like and only a halfway amount of bath water can be sucked up, the opening / closing valve V Three The bath water in the bathtub 10 can be sucked in only from the ejection part 11 by closing.
[0051]
As a result, a sufficient amount of the bath water in the bathtub 10 can be sucked up only by the jetting part 11 and can be mixed with hot water passing through the circulation line 14, so that even when the prefilter or the like is clogged. In addition to the excellent effect of the invention of claim 1, it has an extremely excellent effect that hot water and bath water can be mixed more reliably and the temperature can be lowered and drained more safely.
[0052]
In the invention of claim 3, even when the prefilter or the like is clogged, the extremely excellent effect of being able to reliably control the drainage safely after mixing the hot water and the bath water to lower the temperature. Have. That is, the cleaning valve driving means 23c is configured to suck the bath water in the bathtub 10 from the jetting part 11 and the suction part 12 when draining the bath water. 2 By controlling the drive of the cleaning valve V 2 The hot water (or bath water) flowing in from the pipe line a can be surely discharged to the connecting pipe line b without flowing out to the pipe line j because the suction force of the circulation pump P is sufficient.
[0053]
Further, since the suction force of the circulation pump P reaches the pipe line j, the bath water in the bathtub 10 can be surely sucked up through the pipe line j. As a result, a sufficient amount of the bath water in the bathtub 10 can be sucked up from the ejection part 11 and can be reliably mixed with hot water passing through the circulation line 14, so that the prefilter and the like are clogged. Even when the hot water and the bath water are mixed, the temperature can be lowered and the water can be drained safely and reliably.
[Brief description of the drawings]
FIG. 1 is a block diagram according to a third embodiment of a pipe purification device in a bath water circulation apparatus of the present invention.
FIG. 2 is a flowchart according to a third embodiment of the pipe purification device in the bath water circulation apparatus of the present invention.
FIG. 3 is a flowchart according to a fourth embodiment of the pipe purification device in the bath water circulation apparatus of the present invention.
FIG. 4 is a schematic view when the bath water is sucked from the ejection part and drained from the drain pipe in the first embodiment of the present invention.
FIG. 5 (A) is a schematic diagram when the on-off valve is closed and bath water is sucked from only the ejection part in the second embodiment of the present invention.
(B) is an enlarged sectional view of the on-off valve in (A).
FIG. 6 is a schematic diagram showing mixed waste water after normal heat washing.
FIG. 7 is a schematic diagram showing normal purification.
FIG. 8 is a schematic diagram showing a closed loop during thermal cleaning.
FIG. 9 is a conceptual diagram showing an example of a computer-readable recording medium recorded with a pipeline purification program executed by the pipeline purification apparatus in the bath water circulation apparatus of the present invention.
[Explanation of symbols]
10 ... bathtub
11 ... Squirting part
12 ... Suction part
14 ... circulation pipeline
V 1 ... Drain valve
V 2 ... Cleaning valve
V Three ... Opening / closing valve
b ... Connection pipeline
P ... Circulation pump

Claims (3)

浴槽から浴水を汲み上げる循環ポンプと、微細なゴミ及び汚れ等の不純物を浴水からろ過するためのろ過タンクと、前記浴水を低温から高温に加熱するヒータと、前記浴水を殺菌する殺菌装置により浄化し再び前記浴槽に戻す循環管路とからなる浴水循環装置において、
前記循環管路の流出側の管路に設けられた洗浄バルブと、該洗浄バルブに一端を連結し他端を前記循環管路の吸込み側の適宜な箇所と連結する連結管路と、前記循環ポンプの流出側循環管路の適宜の箇所に設けた排水バルブと、該排水バルブに一端を浴槽外に浴水を排水するため連結した排水管路とからなり、前記循環管路の流出側の管路に設けた前記洗浄バルブに前記浴槽に浴水を戻すための管路の一端を連結し他端に浴水を前記浴槽に排出する噴出部を設け、循環管路内に加熱された高温の浴水を循環させる熱洗浄後の熱水排水時には、前記洗浄バルブを駆動して前記連結管路を介して前記噴出部から浴槽内の浴水を吸い込み熱洗浄した浴水と混合し前記排水バルブを介し前記排水管路より排水することを特徴とする浴水循環装置。
A circulation pump that pumps bath water from the bath, a filtration tank for filtering impurities such as fine dust and dirt from the bath water, a heater that heats the bath water from low temperature to high temperature, and sterilization that sterilizes the bath water In the bath water circulation device consisting of a circulation line that is purified by the device and returned to the bathtub again,
A cleaning valve provided in a conduit on the outflow side of the circulation conduit, a connecting conduit connecting one end to the cleaning valve and connecting the other end to an appropriate portion on the suction side of the circulation conduit, and the circulation A drain valve provided at an appropriate location on the outflow side circulation pipe of the pump, and a drain pipe connected to the drain valve for draining bath water at one end to the outside of the bathtub, on the outflow side of the circulation pipe One end of a pipe line for returning bath water to the bathtub is connected to the cleaning valve provided in the pipe line, and a jet part for discharging the bath water to the bathtub is provided at the other end, and a high temperature heated in the circulation pipe line when the bath water hot water waste water after hot washing to circulate, said connection pipe is mixed with the bath water was washed write-heat suck bath water in the bathtub from the ejection part through by driving the flush valve A bath water circulator that drains from the drain pipe through the drain valve .
請求項1記載において、前記吸込部の循環ポンプ側の適宜の箇所に管路の開閉可能な開閉バルブを設けたことを特徴とする浴水循環装置。  2. The bath water circulation apparatus according to claim 1, wherein an opening / closing valve capable of opening and closing a pipe line is provided at an appropriate location on the circulation pump side of the suction portion. 浴槽から浴水を汲み上げる循環ポンプと、微細なゴミ及び汚れ等の不純物を浴水からろ過するためのろ過タンクと、前記浴水を低温から高温に加熱するヒータと、前記浴水を殺菌する殺菌装置により浄化し、再び前記浴槽に戻す循環管路とからなる浴水循環装置において、
前記循環管路の流出側の管路に設けられた洗浄バルブと、該洗浄バルブに一端を連結し他端を前記循環管路の吸込み側の適宜な箇所と連結する連結管路と、前記洗浄バルブの駆動を制御する洗浄バルブ制御手段と、前記循環ポンプの流出側循環管路の適宜の箇所に設けた排水バルブと、前記排水バルブの駆動を制御する排水バルブ制御手段と、該排水バルブに一端を浴槽外に浴水を排水するため連結した排水管路とからなり、前記循環管路の流出側の管路に設けた前記洗浄バルブに前記浴槽に浴水を戻すための管路の一端を連結し他端に浴水を浴槽に排出する噴出部を設け、循環管路内に加熱された高温の浴水を循環させる熱洗浄後の熱水排水時には、前記洗浄バルブ駆動手段により前記洗浄バルブを駆動して前記連結管路を介して前記噴出部から浴槽内の浴水を吸い込むみ熱洗浄した浴水と混合し前記排水バルブを介し前記排水管路より排水するようにしたことを特徴とする浴水循環装置。
A circulation pump that pumps bath water from the bath, a filtration tank for filtering impurities such as fine dust and dirt from the bath water, a heater that heats the bath water from low temperature to high temperature, and sterilization that sterilizes the bath water In the bath water circulation device consisting of a circulation line that is purified by the device and returned to the bathtub again,
A cleaning valve provided in a conduit on the outflow side of the circulation conduit, a connecting conduit connecting one end to the cleaning valve and connecting the other end to an appropriate portion on the suction side of the circulation conduit, and the cleaning A cleaning valve control means for controlling the drive of the valve, a drain valve provided at an appropriate location on the outflow side circulation line of the circulation pump, a drain valve control means for controlling the drive of the drain valve, and the drain valve One end of a pipe line for returning the bath water to the bathtub to the washing valve provided on the outflow side pipe line of the circulation pipe, and having a drain pipe connected to drain the bath water to the outside of the bathtub. Is connected to the other end, and a jet part for discharging the bath water to the bathtub is provided at the other end, and when the hot water is drained after the hot cleaning to circulate the hot bath water heated in the circulation pipe , the jet through the connection pipe by driving the valve Bath water circulation system, characterized in that as draining from the drain line via the drain valve mixed with saw heat washed bath water sucking bath water in the bathtub from.
JP06698199A 1999-03-12 1999-03-12 Bath water circulation device Expired - Fee Related JP4031139B2 (en)

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