JP2001336821A - Hot water feeding and circulating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a circulation pipe in a hot water feeding and circulating device to be cleaned without requiring any feeding of hot water in a bath tub and without feeding any detergent into the bath tub. SOLUTION: A flow passage is changed over by a switching valve 26 arranged in a bath tub connecting means 24 to form a non-communicated state with respect to a bath tub 18. An air discharging valve 17n is provided to discharge air in a circulation pipe 25 and a circulation pipe 17h and enable a circulation cleaning of it to be carried out. In addition, circulation of high temperature hot water is enabled and at the same time upon completion of cleaning operation, an automatic draining of water is carried out by a draining means 20, Thus, even under a state that hot water is not present in the bath tub 18, an inside part of a circulating pipe 217h can be automatically cleaned.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、加熱手段や強制循
環手段を用いて、浴槽水を循環加熱する給湯循環装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply circulating apparatus for circulating and heating bath water using a heating means or a forced circulation means.

【０００２】[0002]

【従来の技術】従来この種の浴槽水を循環させながら加
熱する給湯循環装置では、浴槽を介さずに、且つ循環配
管すべてを用いて循環させるものはなかった。2. Description of the Related Art Conventionally, there has been no such hot water supply circulating apparatus that heats a bathtub while circulating the water without circulating the bathtub and using all the circulation pipes.

【０００３】一方、風呂水を浄化する風呂水浄化装置に
おいて、図７に示すように、浴槽水をポンプで循環させ
ながらフィルターで濾過する浴槽水システムにフィルタ
ーの逆洗回路を備え、さらにフィルター手前に給湯器よ
りの高温水を供給する高温水供給回路を備え、給湯器か
らの６３℃以上の高温水でフィルターを洗浄するものが
ある（例えば、特開平９−１１７３８２号公報）。On the other hand, in a bath water purifying apparatus for purifying bath water, as shown in FIG. 7, a bathtub water system for filtering a bathtub with a filter while circulating the bathtub water is provided with a backwashing circuit for the filter. Is equipped with a high-temperature water supply circuit for supplying high-temperature water from a water heater, and the filter is washed with high-temperature water of 63 ° C. or higher from the water heater (for example, Japanese Patent Application Laid-Open No. 9-117382).

【０００４】同図において、１は給水管２から供給され
た水を加熱し、ガラスビーズを充填した濾過手段３及び
ヘアーキャッチャー４を逆流洗浄する給湯器である。ま
た、５は浴槽、６は浴槽水をヘアキャッチャー４及び濾
過手段３で濾過しながら循環するポンプためのポンプで
ある。さらに７は循環回路８に設けられた浴槽水の保温
を行う加熱器である。９、１０、１１、１２、１３、１
４、１５はそれぞれ水の流れを切り替える切替三方弁及
び開閉弁である。[0004] In the figure, reference numeral 1 denotes a water heater for heating water supplied from a water supply pipe 2 and back-washing a filter means 3 and a hair catcher 4 filled with glass beads. Reference numeral 5 denotes a bathtub, and reference numeral 6 denotes a pump for circulating the bathtub water while filtering it with the hair catcher 4 and the filtering means 3. Further, reference numeral 7 denotes a heater provided in the circulation circuit 8 for keeping the temperature of the bath water. 9, 10, 11, 12, 13, 1
Reference numerals 4 and 15 denote a three-way switching valve and a switching valve for switching the flow of water, respectively.

【０００５】この構成において、切替三方弁１０、１
１、１２、１３、１４を切り替えて循環回路８が連通す
る様にし、ポンプ６を運転すると浴槽水が、ヘアキャッ
チャー４及び濾過手段３で濾過されると共に、加熱器７
で加熱され浴槽５に戻される。In this configuration, the switching three-way valves 10, 1
When the pump 6 is operated, the bathtub water is filtered by the hair catcher 4 and the filtering means 3 and the heater 7 is turned on.
And is returned to the bathtub 5.

【０００６】また、切替三方弁１０、１１、１２、１
３、１４を切り替えて給湯器１から濾過手段３及びヘア
キャッチャー４へ通水可能にし、開閉弁１５を開にする
と、給湯器１から６３℃以上の高温水が濾過手段３及び
ヘアキャッチャー４に通水され濾過手段３及びヘアキャ
ッチャー４を洗浄し、外部に汚れを排出するものがあ
る。Further, switching three-way valves 10, 11, 12, 1
By switching 3 and 14, water can be passed from the water heater 1 to the filtering means 3 and the hair catcher 4, and when the open / close valve 15 is opened, high-temperature water of 63 ° C. or more from the water heater 1 flows to the filtering means 3 and the hair catcher 4. There are some which pass water to wash the filtering means 3 and the hair catcher 4 and discharge dirt to the outside.

【０００７】[0007]

【発明が解決しようとする課題】しかしながら、上記従
来の給湯循環装置及び風呂水浄化装置では、循環配管を
洗浄するためには浴槽内に湯水を張り、浴槽に洗浄剤を
投入した後、所定時間の追い焚き運転、循環運転を行う
必要があった。施工時の循環配管の水密性を確認するた
めに、専用の治具・工具を用いる必要があった。However, in the above-mentioned conventional hot water supply circulating apparatus and bath water purifying apparatus, in order to clean the circulation pipe, hot water is filled in a bathtub, and after a cleaning agent is poured into the bathtub, it takes a predetermined time. It was necessary to perform reheating operation and circulation operation. In order to check the watertightness of the circulation piping during construction, it was necessary to use special jigs and tools.

【０００８】このため、洗浄に長時間を要したり、循環
配管内の水温を上昇させるために浴槽内全体の水を沸き
上げる必要があり、多くのエネルギーを要していた。さ
らに、浴槽の材質によっては洗浄剤により浴槽をいため
るという課題があった。For this reason, it takes a long time for cleaning, and it is necessary to boil the water in the entire bathtub in order to raise the temperature of the water in the circulation pipe, which requires much energy. Further, depending on the material of the bathtub, there is a problem that the bathtub is damaged by the cleaning agent.

【０００９】[0009]

【課題を解決するための手段】本発明は上記課題を解決
するため、浴槽水を循環する循環路及び循環ポンプを有
する循環手段と、循環手段を介して浴槽水を加熱保温或
いは浴槽への注湯を行う給湯加熱手段と、循環路内の気
体を排出する空気排出手段と、浴槽と循環路を水密に接
続する浴槽連結手段とからなり、浴槽連結手段がその内
部に循環路の流路を切替える切替手段を有し、切替手段
により浴槽を介して循環路を形成する、或いは浴槽を介
さずに循環路を形成するようにしたものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a circulating means having a circulating path and a circulating pump for circulating bath water, and heats or heats the bath water through the circulating means. Hot water supply heating means for supplying hot water, air discharging means for discharging gas in the circulation path, and bathtub connection means for connecting the bathtub and the circulation path in a watertight manner, and the bathtub connection means has a flow path of the circulation path therein. It has a switching means for switching, and forms a circulation path through a bathtub by the switching means, or forms a circulation path without passing through the bathtub.

【００１０】上記発明によれば、循環配管内を洗浄する
際に、浴槽側とを非連通にした状態、且つ空気排出手段
で循環配管を大気開放した状態で、給湯加熱手段を用い
て循環路内へ給湯すると、循環路内の空気が湯水によっ
て外部に押し出させる様になる。According to the above invention, when cleaning the inside of the circulation pipe, the circulation path is heated by the hot water supply heating means in a state in which the communication with the bathtub is not performed and the circulation pipe is opened to the atmosphere by the air discharging means. When hot water is supplied inside, the air in the circulation path is pushed out to the outside by hot water.

【００１１】空気が完全に押し出されたら循環路の大気
開放を止め、閉ループの循環路を形成させ、給湯加熱手
段で循環路内の水温を高温にしながら循環ポンプを動作
させ、湯水を循環させることで、循環路内すべてを高温
にして循環洗浄できる。よって、洗浄剤を用いずに洗浄
できるうえ、循環配管が細菌の温床になることを防止で
きる。When the air is completely pushed out, the circulation path is stopped from opening to the atmosphere, a closed loop circulation path is formed, and the circulation pump is operated while the water temperature in the circulation path is raised by the hot water supply heating means, thereby circulating the hot water. Thus, the entire inside of the circulation path can be heated to a high temperature for circulating cleaning. Therefore, cleaning can be performed without using a cleaning agent, and the circulation pipe can be prevented from becoming a hotbed of bacteria.

【００１２】また、循環配管を洗浄する際に浴槽に洗浄
剤を投入したとしても、長時間投入状態を維持する必要
が無く、すぐに排水することができるため、浴槽をいた
めることがない。Further, even if the cleaning agent is introduced into the bathtub when cleaning the circulation pipe, it is not necessary to maintain the supply state for a long time and the water can be immediately drained, so that the bathtub is not damaged.

【００１３】[0013]

【発明の実施の形態】本発明の請求項１に係る給湯循環
装置は、浴槽水を循環する循環路及び循環ポンプを有す
る循環手段と、循環手段を介して浴槽水を加熱保温或い
は浴槽への注湯を行う給湯加熱手段と、循環路内の気体
を排出する空気排出手段と、浴槽と循環路を水密に接続
する浴槽連結手段とからなり、浴槽連結手段がその内部
に循環路の流路を切替える切替手段を有し、切替手段に
より浴槽を介して循環路を形成する、或いは浴槽を介さ
ずに循環路を形成するようにしたものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A hot-water supply circulating apparatus according to a first aspect of the present invention comprises a circulating means having a circulating path and a circulating pump for circulating bath water, and heating and keeping the bath water in the bath tub through the circulating means. It comprises hot water supply heating means for pouring water, air discharging means for discharging gas in the circulation path, and bathtub connection means for connecting the bathtub and the circulation path in a watertight manner. And a switching circuit that forms a circulation path via a bathtub or forms a circulation path without passing through the bathtub.

【００１４】上記発明によれば、循環配管内を洗浄する
際に、浴槽側とを非連通にした状態、且つ空気排出手段
で循環配管を大気開放した状態で、給湯加熱手段を用い
て循環路内へ給湯すると、循環路内の空気が湯水によっ
て外部に押し出させる様になる。空気が完全に押し出さ
れたら循環路の大気開放を止め、閉ループの循環路を形
成させ、給湯加熱手段で循環路内の水温を高温にしなが
ら循環ポンプを動作させ、湯水を循環させることで、高
温水の有する熱エネルギーにより循環路内の細菌を死滅
させることとなる。また、高温水の有する溶解力により
循環路内に付着した脂肪酸などが溶解し、すべてを洗浄
することができる。よって、洗浄剤を用いずに洗浄でき
るうえ、循環配管が細菌の温床になることが防止でき
る。また、循環配管を洗浄する際に浴槽に洗浄剤を投入
したとしても、長時間投入状態を維持する必要が無く、
すぐに排水することができるため、浴槽の劣化を防止で
きる。According to the above invention, when cleaning the inside of the circulation pipe, the circulation path is heated using the hot water supply heating means in a state where the communication with the bathtub is not performed and the circulation pipe is opened to the atmosphere by the air discharging means. When hot water is supplied inside, the air in the circulation path is pushed out to the outside by hot water. When the air is completely extruded, the circulation path is stopped from opening to the atmosphere, a closed-loop circulation path is formed, the circulation pump is operated while the water temperature in the circulation path is raised by the hot water supply heating means, and the hot water is circulated, thereby increasing the temperature. The heat energy of the water kills the bacteria in the circuit. In addition, fatty acids and the like adhering to the circulation path are dissolved by the dissolving power of high-temperature water, and all of them can be washed. Therefore, cleaning can be performed without using a cleaning agent, and the circulation pipe can be prevented from becoming a hotbed of bacteria. Also, even if the cleaning agent is charged into the bathtub when cleaning the circulation pipe, there is no need to maintain the charging state for a long time,
Since the water can be drained immediately, deterioration of the bathtub can be prevented.

【００１５】また、本発明の請求項２に係る給湯循環装
置は、注湯流量を検知する流量検知手段を備え、注湯時
の流量が所定値以下であれば、浴槽への注湯動作を停止
する制御手段を備えたものである。Further, the hot water supply circulation device according to a second aspect of the present invention is provided with a flow rate detecting means for detecting a flow rate of the pouring water, and when the flow rate at the time of pouring is equal to or less than a predetermined value, the pouring operation to the bathtub is performed. It is provided with control means for stopping.

【００１６】そして、流量検知手段により循環時の流量
を検知し、所定値以下、例えば浴槽循環手段の切替弁部
により循環路が浴槽側に連通されない状態になっていた
場合には、浴槽側に注湯されずに、循環路及び浴槽連結
装置の弁体部等に水圧による応力負荷がかかるが、すぐ
に停止される。よって、循環配管系の信頼性に悪影響を
及ぼすことを防止できる。The flow rate at the time of circulation is detected by the flow rate detecting means. When the circulation path is not communicated with the bathtub side by a predetermined value or less, for example, by the switching valve of the bathtub circulating means, the flow rate is changed to the bathtub side. Without pouring, a stress load due to water pressure is applied to the circulation path and the valve body of the bathtub connection device, but the operation is immediately stopped. Therefore, it is possible to prevent the reliability of the circulation piping system from being adversely affected.

【００１７】また、本発明の請求項３に係る給湯循環装
置は、循環流量を検知する流量検知手段を備え、循環時
の流量が所定値以下になれば、循環路の洗浄時期を知ら
せる報知手段を備えたものである。Further, the hot water supply circulating apparatus according to a third aspect of the present invention includes a flow rate detecting means for detecting a circulating flow rate, and a notifying means for notifying a cleaning timing of the circulating path when the circulating flow rate becomes a predetermined value or less. It is provided with.

【００１８】そして、長期の使用により循環路内にＣａ
成分を含有するスケールや、皮脂等により形成される金
属石鹸が湯垢などが付着し、流路を狭め循環流量が減少
する。このようになると、流量検知手段により循環時の
流量を検知し、所定値以下になれば、洗浄時期報知手段
により洗浄時期が報知される。よって、使用者は洗浄時
期を認知させると共に、循環路内の洗浄を啓蒙できる。[0018] Then, over a long period of use, Ca
The scale containing the components and the metallic soap formed by sebum and the like adhere to the scale, narrow the flow path and reduce the circulation flow rate. In this case, the flow rate during circulation is detected by the flow rate detecting means, and when the flow rate becomes equal to or less than the predetermined value, the cleaning time notifying means notifies the cleaning time. Therefore, the user can recognize the cleaning time and can enlighten the user in cleaning the circulation path.

【００１９】また、本発明の請求項４に係る給湯循環装
置は、循環路内に付着する汚れの汚れ検出手段を備え、
その検出値により循環路の洗浄時期を知らせる報知手段
を備えたものである。Further, the hot water supply circulating apparatus according to a fourth aspect of the present invention includes dirt detection means for dirt attached to the circulation path.
It is provided with a notifying means for notifying the cleaning time of the circulation path based on the detected value.

【００２０】そして、通常の使用により循環路内に皮脂
や浴室に持込まれる細菌等によりバイオフィルムが形成
される。特に長期間、循環路内を洗浄しない場合は、追
焚き循環時に循環路内のバイオフィルムが剥離し、浴槽
内に流出することもある。しかし、汚れ検出手段により
循環路内壁に付着するバイオフィルムなどの汚れを検出
すれば、洗浄時期報知手段により洗浄時期が報知され
る。よって、使用者は洗浄時期を認知させると共に、洗
浄が啓蒙される。つまり、細菌汚染による人体への影響
を抑制できる。[0020] Then, a biofilm is formed by sebum or bacteria brought into the bathroom in the circulation path by ordinary use. In particular, when the circulation path is not cleaned for a long period of time, the biofilm in the circulation path may be peeled off during the additional heating circulation, and may flow out into the bathtub. However, if the dirt detecting means detects dirt such as a biofilm adhering to the inner wall of the circulation path, the cleaning timing notifying means notifies the cleaning timing. Therefore, the user is made aware of the cleaning time and the cleaning is enlightened. That is, the influence on the human body due to bacterial contamination can be suppressed.

【００２１】また、本発明の請求項５に係る給湯循環
は、循環路或いは浴槽連結装置に接続され、循環路内に
洗浄剤を注入する洗剤添加手段を備えたものである。Further, the hot water supply circulation according to a fifth aspect of the present invention is provided with a detergent adding means connected to a circulation path or a bathtub connecting device and for injecting a cleaning agent into the circulation path.

【００２２】そして、使用者が浴槽連結手段の切替弁を
切り換え、浴槽側と循環路側を非連通とし、循環路内の
洗浄指示を行うことで、洗浄剤注入手段が洗浄剤を自動
的に循環路内に注入することで、循環路内が洗剤により
洗浄される。よって、浴槽内に洗浄剤を投入することな
く循環路内が洗浄でき、洗剤成分による浴槽が傷められ
難い。また、浴槽水を循環させる必要がないため洗浄剤
の使用量を減少させることができると共に、洗浄時間の
短縮化を図れる。Then, the user switches the switching valve of the bathtub connecting means so that the bathtub side and the circulation path side are not communicated with each other, and issues a cleaning instruction in the circulation path, whereby the cleaning agent injection means automatically circulates the cleaning agent. By injecting into the passage, the inside of the circulation passage is washed with the detergent. Therefore, the inside of the circulation path can be cleaned without putting the cleaning agent into the bathtub, and the bathtub is not easily damaged by the detergent components. Further, since there is no need to circulate bath water, the amount of the cleaning agent used can be reduced, and the cleaning time can be shortened.

【００２３】また、本発明の請求項６に係る給湯循環
は、循環路内の湯水を外部に排出する排水手段を備えた
ものである。Further, the hot water supply circulation according to claim 6 of the present invention is provided with a drainage means for discharging hot water from the circulation path to the outside.

【００２４】そして、注湯手段で注湯しながら排水手段
を外部に開放することで循環路内の洗浄に使用した高温
或いは洗浄剤を含んだ湯水を押し出し、外部に排水でき
る。よって、循環路内の洗浄に利用した洗浄排水を確実
に排水し、綺麗な水で循環路内をパージすることができ
る。By opening the drainage means to the outside while pouring with the pouring means, hot water or a hot water containing a cleaning agent used for cleaning the inside of the circulation path can be pushed out and drained to the outside. Therefore, it is possible to reliably drain the cleaning wastewater used for cleaning the inside of the circulation path, and to purge the inside of the circulation path with clean water.

【００２５】また、本発明の請求項７に係る給湯循環
は、循環路内の圧力を検知する圧力検知手段を備え、所
定圧以上になれば、排水手段を外部開放することで、循
環路内の圧力を低下させる昇圧防止制御手段を備えたも
のである。Further, the hot water supply circulation according to a seventh aspect of the present invention is provided with a pressure detection means for detecting a pressure in the circulation path, and when the pressure becomes equal to or higher than a predetermined pressure, the drainage means is opened to the outside. And pressure increase prevention control means for reducing the pressure of the pressure.

【００２６】そして、循環路内が所定値以上に昇圧した
際は、圧力検知手段により排水手段が開放され、循環路
内の圧力が低下する。例えば浴槽循環手段の切替弁部に
より循環路が浴槽側に連通されない状態で、注湯動作が
行われると循環路内の内圧が上昇した状態になり、循環
路及び浴槽連結装置の弁体部等に水圧による応力負荷が
かかるが、注湯手段を停止するとともに、すぐに排水手
段を開成することで循環路内がほぼ大気圧まで減圧され
る。よって、循環配管系の信頼性に悪影響を及ぼすこと
を防止できる。When the pressure in the circulation path rises above a predetermined value, the drainage means is opened by the pressure detection means, and the pressure in the circulation path decreases. For example, when the pouring operation is performed in a state where the circulation path is not communicated with the bathtub side by the switching valve section of the bathtub circulation means, the internal pressure in the circulation path increases, and the valve section of the circulation path and the bathtub connection device, etc. Although the stress load due to the water pressure is applied to the water, the inside of the circulation path is reduced to almost the atmospheric pressure by stopping the pouring means and immediately opening the draining means. Therefore, it is possible to prevent the reliability of the circulation piping system from being adversely affected.

【００２７】また、本発明の請求項８に係る給湯循環
は、機器のリモコン部に循環路内の水温を表示する表示
部を備えると共に、循環路内の水温が設定水温になるま
で、警報表示を行う様にしたものである。Further, the hot water supply circulation according to claim 8 of the present invention is provided with a display unit for displaying the water temperature in the circulation path on the remote control unit of the apparatus, and an alarm display until the water temperature in the circulation path reaches the set water temperature. Is performed.

【００２８】そして、表示部に水温が表示されることに
より、使用者が循環配管内の水温を知ることができる。
また、循環路内の水温が、設定水温以下になるまで警報
表示を行うことで、循環配管内を高温水で洗浄中或いは
洗浄後に切替弁を移動或いは回転させて流路を切替える
ことを防止できる。よって、高温水による火傷などを未
然に防ぐことができる。By displaying the water temperature on the display, the user can know the water temperature in the circulation pipe.
Further, by displaying an alarm until the water temperature in the circulation path becomes equal to or lower than the set water temperature, it is possible to prevent switching of the flow path by moving or rotating the switching valve during or after cleaning the circulation pipe with high-temperature water. . Therefore, burns and the like due to high-temperature water can be prevented.

【００２９】[0029]

【実施例】以下、本発明の実施例について図面を用いて
説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００３０】（実施例１）図１、図２はそれぞれ実施例
１における浴水循環装置の浴槽を非連通とした際の循環
状態を示す水回路構成図、浴槽連結装置の断面図であ
る。図３、図４はそれぞれ同装置の浴槽を連通とした際
の循環状態を示す水回路構成図、浴槽連結装置の断面図
である。図５、図６はそれぞれ切替弁、弁押さえの断面
図及び正面図である。(Embodiment 1) FIGS. 1 and 2 are a water circuit configuration diagram and a cross-sectional view of a bathtub connecting device, respectively, showing a circulating state when the bathtub of the bathwater circulating device in Embodiment 1 is not connected. FIGS. 3 and 4 are a water circuit configuration diagram and a cross-sectional view of the bathtub connection device, respectively, showing a circulating state when the bathtub of the same device is connected. 5 and 6 are a cross-sectional view and a front view of the switching valve and the valve press, respectively.

【００３１】図１、図３において、１７は給湯加熱手段
であり、浴槽１８への注湯・追焚き等を行うバーナー１
７ａ、熱交換器１７ｂ、注湯流量を制御する流量制御弁
１７ｃ、注湯温度を検知するサーミスター１７ｄ、注湯
の開閉を制御する電磁弁１７ｅ、給湯管１７ｆに設けら
れた逆止弁１７ｇ及び注湯時の流量を検知する注湯流量
センサー１７ｏ、循環管１７ｈに設けられた循環ポンプ
１７ｉ、電動三方弁１７ｊ、循環管１７ｈ内の水温を検
知するサーミスタ１７ｋ、浴槽水位を検知する水位検知
センサー１７ｌ、循環時の流量を検知する循環流量セン
サー１７ｍ、循環管１７ｈ内の空気を排出する空気排出
手段である空気排出弁１７ｎがそれぞれ設けられてい
る。In FIGS. 1 and 3, reference numeral 17 denotes a hot water supply heating means, which is a burner 1 for pouring a hot water into a bathtub 18 and reheating the bath.
7a, a heat exchanger 17b, a flow control valve 17c for controlling a pouring flow rate, a thermistor 17d for detecting a pouring temperature, a solenoid valve 17e for controlling the opening and closing of pouring, and a check valve 17g provided in a hot water supply pipe 17f. And a pouring flow sensor 17o for detecting a flow rate during pouring, a circulating pump 17i provided in a circulating pipe 17h, an electric three-way valve 17j, a thermistor 17k for detecting a water temperature in the circulating pipe 17h, and a water level detection for detecting a bathtub water level. A sensor 171, a circulation flow sensor 17 m for detecting a flow rate during circulation, and an air discharge valve 17 n as an air discharge means for discharging air in the circulation pipe 17 h are provided.

【００３２】１９は洗浄剤供給手段であり、循環管１７
ｈに設けられ熱交換器１７ｂをバイパスするように設け
られた洗浄剤注入用バイパス管１９ａと、バイパス管１
９ａ及び熱交換器１７ｂのどちらか一方に流路を切替え
る電動三方弁１９ｂと、バイパス管に設けられたエジェ
クタ１９ｃと、エジェクタ負圧部に接続された洗浄剤供
給管１９ｄと、洗浄剤供給管１９ｄに接続され、内部に
液体洗浄剤１９ｅが充填された洗浄剤タンク１９ｆとで
構成されている。Numeral 19 denotes cleaning agent supply means, which is a circulation pipe 17.
h, a bypass pipe 19a for cleaning agent injection provided to bypass the heat exchanger 17b, and a bypass pipe 1
An electric three-way valve 19b for switching a flow path to one of the heat exchanger 9a and the heat exchanger 17b; an ejector 19c provided in a bypass pipe; a detergent supply pipe 19d connected to an ejector negative pressure portion; 19d and a cleaning tank 19f filled with a liquid cleaning agent 19e.

【００３３】また２０は排水手段であり、循環管１７ｈ
の最上部に接続された排水管２０ａと、電動二方弁２０
ｂとで構成されている。２１は循環管１７ｈ内面に付着
する汚れを検知する汚れ検知手段であり、光を照射部２
１ａと受光部２１ｂとを備えている。２２は給湯加熱手
段１７、洗浄剤供給手段１９、排水手段２０のあらゆる
制御を司る制御手段である。Reference numeral 20 denotes a drainage means, which is a circulation pipe 17h.
Drain pipe 20a connected to the top of the
b. Reference numeral 21 denotes a dirt detecting means for detecting dirt adhering to the inner surface of the circulating pipe 17h.
1a and a light receiving section 21b. Reference numeral 22 denotes a control unit that controls all controls of the hot water supply heating unit 17, the cleaning agent supply unit 19, and the drainage unit 20.

【００３４】また、２３は遠隔操作を可能にする浴室内
リモコンであり、リモコンに設けられた循環配管内の水
温を表示する水温表示部２３ａ、循環管内の水温が所定
温度以上になれば点灯表示する警報ランプ２３ｂ、洗浄
時期を知らせる洗浄表示ランプ２３ｃ、自動洗浄ＳＷ２
３ｄを備えている。Reference numeral 23 denotes a remote controller in the bathroom which enables remote control, a water temperature display portion 23a for displaying the water temperature in the circulation pipe provided on the remote controller, and a lighting display when the water temperature in the circulation pipe exceeds a predetermined temperature. Warning lamp 23b, cleaning display lamp 23c for notifying cleaning time, automatic cleaning SW2
3d.

【００３５】また、図２、図４において、２４は浴槽連
結手段であり、ボディ２４ｊと、ボディ２４ｊに内蔵さ
れた、循環配管２５の往路管２５ａが接続される往路用
と機能する第１の通水路２４ａと、循環配管２５の復路
管２５ｂが接続され復路用として機能する第２の通水路
２４ｂが接続されている。また、ボディ２４ｊの内部に
は、切替弁２６を取り付けるための弁取付部２４ｃが形
成されている。In FIG. 2 and FIG. 4, reference numeral 24 denotes a bathtub connecting means, which is a first functioning as a body for connecting the body 24j and the outward path 25a of the circulation pipe 25 built in the body 24j. The water passage 24a is connected to the return line 25b of the circulation pipe 25, and the second water passage 24b that functions as a return line is connected. Further, a valve mounting portion 24c for mounting the switching valve 26 is formed inside the body 24j.

【００３６】そして、弁取付部２４ｃには切替弁２６が
回転可能に挿入されており、弁取付部２４ｃと切替弁２
６間には切替弁用Ｏリング２４ｄが配設されている。The switching valve 26 is rotatably inserted into the valve mounting portion 24c.
A switching valve O-ring 24d is arranged between the six.

【００３７】この切替弁２６は、図５、図６にも示すよ
うに、第１の通水路２６ａ及び第２の通水路２６ｂを備
えているとともに、外部の所定の位置に流路切替用の弁
体部２６ｃを配設することにより形成されており、ま
た、その先端側には、ドライバなどの工具を用いずに回
転させることにより切替弁２６を所定の角度だけ回転さ
せるためのレバー状の操作部２６ｄが形成されている。As shown in FIGS. 5 and 6, the switching valve 26 has a first water passage 26a and a second water passage 26b, and is provided at a predetermined external position for switching the flow passage. It is formed by arranging the valve body portion 26c, and has a lever-like end on its tip side for rotating the switching valve 26 by a predetermined angle by rotating without using a tool such as a driver. An operation unit 26d is formed.

【００３８】また、ボディ２４ｊは、浴槽外パッキン２
４ｅ、浴槽内パッキン２４ｆを介して接続具２４ｇで浴
槽１８の内外から締め付けることで取り付けている。切
替弁２６と接続具２４ｇとの間には、切替弁用Ｏリング
２４ｈが配設されている。The body 24j is provided with the packing 2 outside the bathtub.
4e, it is attached by tightening the inside and outside of the bathtub 18 with the connecting tool 24g via the packing 24f in the bathtub. A switching valve O-ring 24h is provided between the switching valve 26 and the connector 24g.

【００３９】そして、切替弁２６は、接続具２４ｇの外
側に取り付けられた弁押え２７により、抜け落ちないよ
うに、かつ回転可能にボディ２４ｊ内に保持されてお
り、切替弁２６の操作部２６ｄの外周部にはＥ型止め輪
２４ｉが取り付けられている。The switching valve 26 is rotatably held in the body 24j by a valve retainer 27 attached to the outside of the connector 24g so as not to fall off and to be rotatable. An E-shaped retaining ring 24i is attached to the outer peripheral portion.

【００４０】また、弁押え２７は止めねじ２７ａにより
接続具２４ｇに固定されている。そして、弁押え２７と
接続具２４ｇの間には下向きに吐出口２７ｂが形成さ
れ、また、弁押え２７の中央部のやや右よりには吸引口
２７ｃが形成されている。さらに弁押え２７の切替弁側
には第１の通水路２６ａ及び第２の通水路２６ｂを連通
させるための連通路２７ｄが設けられている。The valve retainer 27 is fixed to the connecting member 24g by a set screw 27a. A discharge port 27b is formed downward between the valve presser 27 and the connecting tool 24g, and a suction port 27c is formed at the center of the valve presser 27 slightly to the right. Further, a communication passage 27d for communicating the first water passage 26a and the second water passage 26b is provided on the switching valve side of the valve retainer 27.

【００４１】なお、切替弁２６は、湯水が短絡して流れ
ることを防止するように配設された切替弁用Ｏリング２
０ｄ、切替弁用Ｏリング２０ｈ、４つの弁押さえパッキ
ン２７ｅにより保持されている。The switching valve 26 is provided with a switching valve O-ring 2 provided to prevent hot water from flowing due to a short circuit.
0d, a switching valve O-ring 20h, and four valve holding packings 27e.

【００４２】図２は第１の通水路２６ａ及び第２の通水
路２６ｂを連通させ、浴槽１８側とは非連通を示した状
態であるが、操作レバー２６ｄを１８０度回転させるこ
とにより、図４に示す様に循環配管２５が浴槽１８内側
で連通し、通常の注湯・追焚き循環などの水回路構成が
可能となる。FIG. 2 shows a state in which the first water passage 26a and the second water passage 26b are communicated with each other, and the communication with the bathtub 18 is not performed. As shown in FIG. 4, a circulation pipe 25 communicates with the inside of the bathtub 18, and a water circuit configuration such as a normal pouring / reheating cycle can be realized.

【００４３】さらに、２８は弁押え２６を覆うように弁
押さえ２６に取りつけられた金網フィルタである。Reference numeral 28 denotes a wire mesh filter attached to the valve retainer 26 so as to cover the valve retainer 26.

【００４４】次に、図３、図４を用いて、浴槽１８への
湯張り・追焚きを行う際の動作・作用を説明する。通常
は、図３に示す第１の通水路２４ａ及び第２の通水路２
４ｂを直接連通させずに、浴槽１８側で連通させた状態
になっており、給湯加熱手段１７により浴槽１８内に注
湯を行う場合には、図３の破線矢印２９に示す様に、給
湯管１７ｆから出湯された湯が、吸引管２５ｂ及び往き
管２５ａを介し、吐出口２７ｂ、吸引口２７ｃの両方か
らから浴槽１８内に注湯される。Next, an operation and an operation when the hot water is added to the bathtub 18 and the additional heating is performed will be described with reference to FIGS. Normally, the first water passage 24a and the second water passage 2 shown in FIG.
When the hot water is supplied into the bath 18 by the hot water supply heating means 17, the hot water is supplied as shown by a broken line arrow 29 in FIG. Hot water discharged from the pipe 17f is poured into the bathtub 18 from both the discharge port 27b and the suction port 27c via the suction pipe 25b and the going pipe 25a.

【００４５】また、浴槽水を追焚き（保温）を行う場合
は、図３の実線矢印３０に示す様に、循環ポンプ１７ｉ
により吸引された浴槽水が、吸引管２５ｂから往き管２
５ａに流れるようになるとともに、バーナー１７ａを燃
焼し、熱交換器１７ｂで受熱（熱交換）しながら循環管
１７ｉ内の湯水を加温し、浴槽１８に供給する。When the bathtub water is to be reheated (heat retention), as shown by the solid line arrow 30 in FIG.
Tub water sucked by the suction pipe 25b goes from the suction pipe 25b to the pipe 2
5a, the burner 17a is burned, and the hot and cold water in the circulation pipe 17i is heated while receiving heat (heat exchange) by the heat exchanger 17b and supplied to the bathtub 18.

【００４６】しかしながら、給湯加熱手段１７を継続し
て使用すると、循環配管２５及び循環管１７ｈ、浴槽連
結手段２４のそれぞれの内壁には入浴により持ち込まれ
る脂肪酸や微生物、石鹸成分が付着する。特に汚れは水
の流れの影響で浴槽連結手段２４の吸引口２７ｃから吸
引管２５ｂ部分に多く付着する。このようになれば、汚
れ検知手段２１の照射部２１ａから送られる光の照度に
対し、受光部２１ｂで受ける光量が低下する。受光部２
１ｂでの受光量が減少すれば、循環配管２５及び循環管
１７ｈ等に汚れが付着したと判断し、洗浄時期を知らせ
る洗浄表示ランプが点灯し、使用者に洗浄時期を知らせ
る。However, when the hot water supply / heating means 17 is continuously used, fatty acids, microorganisms, and soap components brought in by bathing adhere to the inner walls of the circulation pipe 25, the circulation pipe 17h, and the bathtub connecting means 24. In particular, a large amount of dirt adheres to the suction pipe 25b from the suction port 27c of the bathtub connecting means 24 under the influence of the flow of water. In this case, the amount of light received by the light receiving unit 21b is lower than the illuminance of the light transmitted from the irradiation unit 21a of the dirt detection unit 21. Light receiving unit 2
If the amount of light received at 1b decreases, it is determined that dirt has adhered to the circulation pipe 25, the circulation pipe 17h, and the like, and a cleaning indicator lamp for notifying the cleaning time is turned on to notify the user of the cleaning time.

【００４７】このようになれば、使用者は金網フィルタ
ー２８を外し、操作部２６ｄを手で回転させることによ
り、弁体部２６ｃが回転し、図２に示す様な第１の通水
路２６ａと第２の通水路２６ｂが連通路２７ｄを介して
連通される（この際、浴槽１８内とは非連通状態とな
る）。その後、自動洗浄ＳＷ２３ｄを押すことにより、
循環配管２５及び循環管１７ｈ内部が自動的に洗浄され
る。In this case, the user removes the wire mesh filter 28 and rotates the operation part 26d by hand, whereby the valve body part 26c is rotated, and the first water passage 26a as shown in FIG. The second water passage 26b is communicated through the communication passage 27d (at this time, the inside of the bathtub 18 is not communicated). Then, by pressing the automatic cleaning SW 23d,
The insides of the circulation pipe 25 and the circulation pipe 17h are automatically cleaned.

【００４８】次に図１、図２を用いて、循環配管２５及
び循環管１７ｉの洗浄動作・作用について説明する。使
用者が自動洗浄ＳＷを押すと、水位センサー１７ｋによ
り浴水水位を判定する。Next, the cleaning operation and operation of the circulation pipe 25 and the circulation pipe 17i will be described with reference to FIGS. When the user presses the automatic cleaning SW, the water level sensor 17k determines the bath water level.

【００４９】操作部２６ｄを動作させる前に浴槽内に循
環可能な浴水水位があったと判断した場合は、排水手段
２０の電動二方弁２０ｂを極短時間だけ一時的に開放し
循環管１７ｈ内の湯水を排水管２０ａより少量排水し、
浴槽内に循環可能な浴水水位がないと判断した場合は、
給湯加熱手段１７で循環管１７ｈ内に給水し、給水圧を
利用して循環管１７ｉ及び循環配管２５内の空気を空気
排出弁１７ｎから排出させた後、電動二方弁２０ｂを極
短時間だけ一時的に開放し循環管１７ｈ内の湯水を排水
管２０ａより少量排水する。If it is determined that there is a circulating bath water level in the bath tub before operating the operation section 26d, the electric two-way valve 20b of the drainage means 20 is temporarily opened for a very short time to open the circulation pipe 17h. Drain a small amount of hot water from the drain pipe 20a,
If you determine that there is no circulating bath water level in the bathtub,
Water is supplied into the circulation pipe 17h by the hot water supply heating means 17, and the air in the circulation pipe 17i and the circulation pipe 25 is discharged from the air discharge valve 17n using the water supply pressure. It is temporarily opened, and a small amount of hot water in the circulation pipe 17h is drained from the drain pipe 20a.

【００５０】その後、電動三方弁１９ｂを切り換え、洗
浄剤注入用バイパス管１９ａ側に流れるようにする。そ
の後、循環ポンプ１７ｉが運転されると、循環管１７ｈ
内の空気が空気抜き弁１７ｎから抜けると共に、先ほど
排水手段により排水した湯水の量だけ液体洗浄剤１９ｅ
がエジェクタ１９ｃ部から洗浄剤タンク１９ｆ、洗浄剤
供給管１９ｄ、バイパス管１９ａに供給され、循環管１
７ｈ及び循環配管２５内に流れ込む。短時間だけ循環ポ
ンプ１７ｉを動作させ空気排出及び洗浄剤注入が終了す
れば、電動三方弁１９ｂを切り替え、熱交換器１７ｂ側
に流れるようにする。その後循環ポンプ１７ｉを循環さ
せながら、バーナー１７ａを燃焼させ、循環管１７ｈ内
を流れる湯水の水温を６０℃以上の高温にする。循環時
の湯水の流れを実線矢印３１に示す。この状態を５〜３
０分程度行うことで、循環配管２５及び循環管１７ｉ内
に付着したバイオフィルムなどの汚れが洗浄剤の有する
溶解力及び高温水の有する熱エネルギーにより剥離溶解
されるとともに、高温水により微生物が死滅させられ
る。その後、循環動作が停止すれば、排水手段２０の電
動二方弁２０ｂを開成し、給湯加熱手段１７で注湯する
ことにより、汚れを含んだ湯水が外部に排水されるとと
もに、きれいな水が循環配管２５及び循環管１７ｈ内を
満たすようになる。Thereafter, the electric three-way valve 19b is switched so as to flow to the cleaning agent injecting bypass pipe 19a side. Thereafter, when the circulation pump 17i is operated, the circulation pipe 17h
The inside of the air is released from the air vent valve 17n, and the amount of the hot water drained by the drainage means is equal to the amount of the liquid cleaning agent 19e.
Is supplied from the ejector 19c to the cleaning agent tank 19f, the cleaning agent supply pipe 19d, and the bypass pipe 19a.
7 h and flows into the circulation pipe 25. When the circulation pump 17i is operated for a short time to complete the air discharge and the cleaning agent injection, the electric three-way valve 19b is switched so as to flow to the heat exchanger 17b. Thereafter, the burner 17a is burned while circulating the circulation pump 17i, and the temperature of the hot water flowing in the circulation pipe 17h is raised to 60 ° C. or higher. The flow of hot and cold water during circulation is indicated by a solid arrow 31. This state is 5-3
By performing for about 0 minutes, dirt such as biofilms attached to the circulation pipe 25 and the circulation pipe 17i is separated and dissolved by the dissolving power of the detergent and the heat energy of the high-temperature water, and the microorganisms are killed by the high-temperature water. Let me do. Thereafter, when the circulation operation is stopped, the electric two-way valve 20b of the drainage means 20 is opened, and hot water containing the dirt is drained to the outside by pouring the hot water with the hot water supply heating means 17, and clean water is circulated. The inside of the pipe 25 and the circulation pipe 17h is filled.

【００５１】また、給湯加熱手段１７を継続して使用す
ると、水道水に含まれる熱交換器１７ｂ近辺の循環管１
７ｈ内にはカルシウム、マグネシウム、シリカなどを含
むスケールが付着し、追焚き時の流量が低下する。この
ようになれば、循環流量検知手段１７ｍにより流量が減
少したことを検知し、洗浄時期を知らせる洗浄表示ラン
プが点灯し、使用者に洗浄時期を知らせる。このように
なれば、上記洗浄動作を行うことで、上記したように洗
剤の有する溶解力でスケール成分が溶解除去される。When the hot water supply / heating means 17 is continuously used, the circulation pipe 1 near the heat exchanger 17b contained in the tap water is used.
Within 7 h, a scale containing calcium, magnesium, silica, etc. adheres, and the flow rate at the time of reheating is reduced. In this case, the circulating flow rate detecting means 17m detects that the flow rate has decreased, and a cleaning indicator lamp for indicating the cleaning time is turned on to notify the user of the cleaning time. In this case, by performing the above-described cleaning operation, the scale component is dissolved and removed by the dissolving power of the detergent as described above.

【００５２】また、給湯加熱手段１７及び、循環配管２
５施工時に、循環配管２５の水漏れ確認を行う必要があ
るが、循環配管設置後に、弁体部２６ｃを回転させるこ
とにより、第１の通水路２６ａ及び第２の通水路２６ｂ
が連通路２７ｄを介して連通する様にした後、給湯加熱
手段１７を介して水圧を掛けることで、循環配管２５の
水密性確認が実施できる。The hot water supply heating means 17 and the circulation pipe 2
5 It is necessary to check the water leakage of the circulation pipe 25 at the time of construction, but after the circulation pipe is installed, by rotating the valve body 26c, the first water passage 26a and the second water passage 26b
Is made to communicate through the communication passage 27d, and then water pressure is applied through the hot water supply heating means 17, whereby the water tightness of the circulation pipe 25 can be confirmed.

【００５３】以上、実施例１においては以下の効果が得
られる。As described above, the first embodiment has the following advantages.

【００５４】（１）空気排出弁を循環管１７ｈの最上部
に位置させたことにより、確実に空気を排出することが
できる。(1) Since the air discharge valve is located at the top of the circulation pipe 17h, the air can be reliably discharged.

【００５５】（２）洗浄剤の供給を、排水管２０ａから
の排水量により規制することにより、洗浄剤注入量を規
制できる。(2) By controlling the supply of the cleaning agent by the amount of drainage from the drain pipe 20a, the amount of the cleaning agent to be injected can be controlled.

【００５６】（３）操作部２６ｄを設けたことにより特
殊な冶具・工具を用いることなく循環配管２５接続時の
水密確認が行え、施工時の作業性が向上する。(3) By providing the operation unit 26d, it is possible to check the watertightness when the circulation pipe 25 is connected without using a special jig or tool, and the workability during construction is improved.

【００５７】なお、この本発明は、上記実施例に限定さ
れるものではなく、空気排出手段、排水手段、洗浄剤供
給手段等の具体的構成については本発明の範囲において
種々の応用、変形を加えることができる。また、この実
施例においては浴槽水の濾過手段を有さないが、濾過手
段などを有することも可能である。It should be noted that the present invention is not limited to the above-described embodiment, and various applications and modifications of the specific structure of the air discharging means, the draining means, the cleaning agent supplying means and the like are within the scope of the present invention. Can be added. Although this embodiment does not have a bathtub water filtering means, it may have a filtering means and the like.

【００５８】[0058]

【発明の効果】以上説明したように本発明の請求項１に
係る給湯循環装置は、循環配管内を洗浄する際に、浴槽
側と非連通にした状態で、給湯加熱手段で循環路内の水
温を高温にしながら循環ポンプを動作させることで、循
環路内すべてを洗浄・殺菌することができる。よって、
循環配管が細菌の温床になることを防止できる。また、
循環配管を洗浄する際に浴槽に洗浄剤を投入した場合で
も、長時間投入状態を維持する必要が無く、すぐに排水
することができるため、浴槽の劣化を防止できる。As described above, the hot water supply circulating apparatus according to the first aspect of the present invention, when cleaning the inside of the circulating pipe, keeps the hot water supply heating means in the circulation path in a state of not communicating with the bathtub side. By operating the circulation pump while keeping the water temperature high, the entire inside of the circulation path can be washed and sterilized. Therefore,
It is possible to prevent the circulation piping from becoming a hotbed of bacteria. Also,
Even when the cleaning agent is introduced into the bathtub when cleaning the circulation pipe, it is not necessary to maintain the supply state for a long time, and the drainage can be immediately drained, so that deterioration of the bathtub can be prevented.

【００５９】また、本発明の請求項２に係る給湯循環装
置は、浴槽循環手段の切替弁部により循環路が浴槽側に
連通されない状態になっていた場合には、循環路及び浴
槽連結装置の弁体部等に水圧による応力負荷がかかる
が、すぐに停止されることで、循環配管系の信頼性に悪
影響を及ぼすことを防止できる。Further, in the hot water supply circulation device according to the second aspect of the present invention, when the circulation path is not communicated with the bathtub side by the switching valve section of the bathtub circulation means, the circulation path and the bathtub connection device are connected. Although a stress load due to water pressure is applied to the valve body and the like, it is possible to prevent the valve from being immediately stopped to adversely affect the reliability of the circulation piping system.

【００６０】また、本発明の請求項３に係る給湯循環装
置は、汚れが循環路内に付着し、流量が減少した際は、
洗浄時期報知手段により洗浄時期が報知される。よっ
て、使用者は洗浄時期を認知させると共に、循環路内の
洗浄を啓蒙できる。さらに追焚き循環性能が低下する前
に洗浄することが可能となる。In the hot water supply circulating apparatus according to the third aspect of the present invention, when dirt adheres to the circulation path and the flow rate decreases,
The cleaning timing is reported by the cleaning timing reporting means. Therefore, the user can recognize the cleaning time and can enlighten the user in cleaning the circulation path. Further, it becomes possible to perform cleaning before the additional firing circulation performance is reduced.

【００６１】また、本発明の請求項４に係る給湯循環装
置は、循環路内に皮脂や細菌等によるバイオフィルムが
形成されると、洗浄を促すように使用者に報知すること
ができる。よって、使用者が洗浄時期を認知できると共
に、細菌汚染による人体への悪影響を抑制できる。Further, the hot water supply circulating apparatus according to the fourth aspect of the present invention can notify a user to encourage cleaning when a biofilm of sebum or bacteria is formed in the circulation path. Therefore, the user can recognize the cleaning time and can suppress the adverse effect on the human body due to bacterial contamination.

【００６２】また、本発明の請求項５に係る給湯循環装
置は、使用者が浴槽連結手段の切替弁を切り換え、循環
路内の洗浄指示を行うことで、循環路内の洗浄を自動的
に行うことができる。よって、浴槽内に洗浄剤を投入す
ることなく循環路内が洗浄でき、洗剤成分による浴槽が
傷められ難い。また、浴槽水を循環させる必要がないた
め洗浄剤の使用量を減少させることができる。さらに、
洗浄時間の短縮化を図ることができる。In the hot water supply circulating apparatus according to the fifth aspect of the present invention, when the user switches the switching valve of the bathtub connecting means and issues a cleaning instruction in the circulation path, the cleaning in the circulation path is automatically performed. It can be carried out. Therefore, the inside of the circulation path can be cleaned without putting the cleaning agent into the bathtub, and the bathtub is not easily damaged by the detergent components. In addition, since there is no need to circulate bath water, the amount of cleaning agent used can be reduced. further,
The cleaning time can be reduced.

【００６３】また、本発明の請求項６に係る給湯循環装
置は、排水手段を外部に開放しながら、注湯すること
で、循環路内の洗浄に使用した高温或いは洗浄剤を含ん
だ湯水が、外部に排水される。よって、循環路内をきれ
いに保つことができる。また、循環路内の洗浄を自動的
に行いながらと、浴槽を洗浄することも可能となる。In the hot water supply circulating apparatus according to the sixth aspect of the present invention, the hot water used for cleaning the inside of the circulation path or the hot water containing the cleaning agent is poured by pouring the water while opening the drainage means to the outside. Drained to the outside. Therefore, the inside of the circulation path can be kept clean. Further, it is possible to wash the bathtub while automatically performing the washing in the circulation path.

【００６４】また、本発明の請求項７に係る給湯循環装
置は、循環路内が所定圧以上になれば、排水手段が外部
開放されるため、循環路及び浴槽連結装置の弁体部等に
水圧による応力負荷がかかるが、直ぐに注湯手段を停止
し、排水手段を開成することで循環路内がほぼ大気圧ま
で減圧できる。よって、循環配管系の信頼性を確保でき
る。In the hot water supply circulating apparatus according to claim 7 of the present invention, when the pressure in the circulation path becomes equal to or higher than a predetermined pressure, the drainage means is opened to the outside. Although a stress load due to water pressure is applied, the inside of the circulation path can be reduced to almost atmospheric pressure by immediately stopping the pouring means and opening the drainage means. Therefore, the reliability of the circulation piping system can be secured.

【００６５】また、本発明の請求項８に係る給湯循環装
置は、使用者が循環路内の水温を知ることができると共
に、設定水温以下になるまで警報表示を行うため、高温
水で洗浄中或いは洗浄後に切替弁で流路の切替えを行う
ことが防げ、火傷などを未然に防ぐことができる。In the hot water supply circulating apparatus according to the eighth aspect of the present invention, since the user can know the water temperature in the circulation path and display an alarm until the water temperature falls below the set water temperature, the hot water circulating apparatus is used. Alternatively, it is possible to prevent the flow path from being switched by the switching valve after the cleaning, and it is possible to prevent a burn or the like from occurring.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施例１における給湯循環装置の洗浄
状態を示す模式構成図FIG. 1 is a schematic configuration diagram showing a cleaning state of a hot water supply circulation device according to a first embodiment of the present invention.

【図２】同装置における浴槽と非連通状態にある場合の
浴槽連結装置の断面図FIG. 2 is a cross-sectional view of the bathtub connection device when the device is not in communication with the bathtub.

【図３】同装置の湯張り・追焚き状態を示す模式構成図FIG. 3 is a schematic configuration diagram showing a hot water filling and reheating state of the apparatus.

【図４】同装置における浴槽と連通状態にある場合の浴
槽連結装置の断面図FIG. 4 is a cross-sectional view of the bathtub connecting device when the device is in communication with the bathtub.

【図５】切替弁の断面図及び正面図FIG. 5 is a sectional view and a front view of a switching valve.

【図６】弁押さえの断面図及び正面図FIG. 6 is a sectional view and a front view of a valve retainer.

【図７】従来の給湯手段を備えた浄化循環装置の模式構
成図FIG. 7 is a schematic configuration diagram of a purification and circulation device having a conventional hot water supply means.

【符号の説明】[Explanation of symbols]

１７ 給湯加熱手段 １７ｆ 給湯管 １７ｈ 循環管 １７ｉ 循環ポンプ １７ｋ サーミスタ １７ｌ 水位検知センサー １７ｍ 循環流量センサー １７ｎ 空気排出弁 １７ｏ 注湯流量センサー １８ 浴槽 １９ 洗浄剤供給手段 ２０ 排水手段 ２１ 汚れ検知手段 ２２ 制御手段 ２３ 浴室内リモコン ２３ａ 水温表示部 ２３ｂ 警報ランプ ２３ｃ 洗浄表示ランプ ２４ 浴槽連結手段 ２５ 循環配管 ２５ａ 往路管 ２５ｂ 復路管 ２６ 切替弁 ２７ 弁押え ２７ｂ 吐出口 ２７ｃ 吸引口 ２７ｄ 連通路 ２７ｅ 弁押さえパッキン Reference Signs List 17 Hot water supply heating means 17f Hot water supply pipe 17h Circulation pipe 17i Circulation pump 17k Thermistor 17l Water level detection sensor 17m Circulation flow rate sensor 17n Air discharge valve 17o Pouring flow rate sensor 18 Bath tub 19 Cleaning agent supply means 20 Drainage means 21 Soil detection means 22 Control means 23 Bathroom remote controller 23a Water temperature indicator 23b Alarm lamp 23c Wash indicator lamp 24 Bath tub connecting means 25 Circulation pipe 25a Outgoing pipe 25b Return pipe 26 Switching valve 27 Valve retainer 27b Discharge port 27c Suction port 27d Communication path 27e Valve holding packing

フロントページの続き (72)発明者 宮田 肇 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 3L024 CC02 CC06 CC17 DD04 DD17 DD19 DD21 DD27 DD35 DD45 DD50 EE02 FF12 GG05 GG06 GG12 GG22 GG23 GG38 GG50 HH12 HH22 HH24 HH26 HH31 HH32 HH38 HH44 HH47 Continued on the front page (72) Inventor Hajime Miyata 1006 Kazuma Kadoma, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. (Reference) 3L024 CC02 CC06 CC17 DD04 DD17 DD19 DD21 DD27 DD35 DD45 DD50 EE02 FF12 GG05 GG06 GG12 GG22 GG23 GG38 GG50 HH12 HH22 HH24 HH26 HH31 HH32 HH38 HH44 HH47

Claims (8)

【特許請求の範囲】[Claims] 【請求項１】浴槽水を循環する循環路及び循環ポンプを
有する循環手段と、前記循環手段を介して浴槽水を加熱
保温或いは浴槽への注湯を行う給湯加熱手段と、前記循
環路内の気体を排出する空気排出手段と、前記浴槽と前
記循環路を水密に接続する浴槽連結手段とからなり、前
記浴槽連結手段は、その内部に前記循環路の流路を切替
える切替手段を有し、前記切替手段により浴槽を介して
循環路を形成する、或いは前記浴槽を介さずに循環路を
形成するようにした給湯循環装置。1. A circulating means having a circulating path and a circulating pump for circulating bath water, a hot water supply heating means for heating and keeping the bath water or pouring water into the bath through the circulating means, Air discharging means for discharging gas, and bathtub connecting means for connecting the bathtub and the circulation path in a watertight manner, wherein the bathtub connection means has switching means for switching the flow path of the circulation path inside thereof, A hot-water supply circulating device in which a circulation path is formed via a bathtub by the switching means, or a circulation path is formed without passing through the bathtub. 【請求項２】注湯流量を検知する流量検知手段を備え、
注湯時の流量が所定値以下であれば、浴槽への注湯動作
を停止する制御手段を備えた請求項１記載の給湯循環装
置。And a flow rate detecting means for detecting a flow rate of the molten metal.
2. The hot water supply circulation device according to claim 1, further comprising control means for stopping the operation of pouring water into the bathtub when the flow rate during pouring is equal to or less than a predetermined value. 【請求項３】循環流量を検知する流量検知手段を備え、
循環時の流量が所定値以下になれば、循環路の洗浄時期
を知らせる報知手段を備えた請求項１または請求項２記
載の給湯循環装置。3. A flow rate detecting means for detecting a circulating flow rate,
3. The hot-water supply circulating apparatus according to claim 1, further comprising an informing means for notifying a cleaning time of the circulating path when a flow rate during the circulation becomes equal to or less than a predetermined value. 【請求項４】循環路内に付着する汚れの汚れ検出手段を
備え、検出値により、循環路の洗浄時期を知らせる報知
手段を備えた請求項１または２記載の給湯循環装置。4. The hot-water supply circulating apparatus according to claim 1, further comprising: means for detecting dirt adhering to the circulation path, and notification means for notifying the cleaning time of the circulation path based on the detected value. 【請求項５】循環路或いは浴槽連結装置に接続され、前
記循環路内に洗浄剤を注入する洗剤添加手段を備えた請
求項１〜４のいずれか１項記載の給湯循環装置。5. The hot-water supply circulating apparatus according to claim 1, further comprising a detergent adding means connected to the circulation path or the bathtub connecting device and injecting the cleaning agent into the circulation path. 【請求項６】循環路内の湯水を外部に排出する排水手段
を備えた請求項１〜５のいずれか１項記載の給湯循環装
置。6. The hot water supply circulation device according to claim 1, further comprising a drainage means for discharging hot water from the circulation path to the outside. 【請求項７】循環路内の圧力を検知する圧力検知手段を
備え、所定圧以上になれば、排水手段を外部開放するこ
とで、前記循環路内の圧力を低下させる昇圧防止制御手
段を備えた請求項６記載の給湯循環装置。7. A pressure detecting means for detecting a pressure in the circulation path, and a pressure increase prevention control means for lowering the pressure in the circulation path by opening a drainage means when the pressure exceeds a predetermined pressure. The hot water circulation device according to claim 6, wherein 【請求項８】機器のリモコン部に循環路内の水温を表示
する表示部を備えると共に、前記循環路内の水温が設定
水温になるまで、警報表示を行う請求項１〜７のいずれ
か１項記載の給湯循環装置。8. The apparatus according to claim 1, further comprising a display unit for displaying a water temperature in the circulation path on a remote controller of the apparatus, and displaying an alarm until the water temperature in the circulation path reaches a set water temperature. The hot water supply circulation device according to the item.