JP2006275371A - Hot water supply device - Google Patents

Hot water supply device Download PDF

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JP2006275371A
JP2006275371A JP2005093873A JP2005093873A JP2006275371A JP 2006275371 A JP2006275371 A JP 2006275371A JP 2005093873 A JP2005093873 A JP 2005093873A JP 2005093873 A JP2005093873 A JP 2005093873A JP 2006275371 A JP2006275371 A JP 2006275371A
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water
bathtub
bath
heat
hot water
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JP4673651B2 (en
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Yoshio Yamaguchi
口 義 夫 山
Shinichi Kato
藤 伸 一 加
Akiyoshi Sasano
野 章 嘉 笹
Takayuki Kawasato
里 隆 行 川
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Janome Corp
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Janome Sewing Machine Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water supply device capable of keeping cleanness of a pipe conduit and keeping efficiency in heat exchange. <P>SOLUTION: Bath water in a bath tub 52 is entered into a pipe conduit 10 of a heat exchanger 1 or a pipe conduit 12 of a heat exchanger 11 from a circulation passage 2' through a pump 30 and a switch valve 31 from an outflow portion 4 to be heated or cooled by heat exchange, and then returned to the bath tub 52 from the circulation passage 2 through a cleaning device 3 for reheating or cooling. As the bath water is sterilized or filtered by an UV lamp 33, a filtering tank 34 and an electrolytic sterilizing device 35 in the cleaning device 3, the attachment of impurities to the inside of the pipe conduit 10 of the heat exchanger 1, and the inside of the circulation passages 2, 2' can be prevented. Thus the heat exchanging effect of the heat exchanger 1 or the heat exchanger 11 can be kept. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、冷水を加熱して熱水を作り出し、貯水タンクに蓄え、該熱水を供給する熱水供給装置に関する。   The present invention relates to a hot water supply device that heats cold water to produce hot water, stores the hot water in a water storage tank, and supplies the hot water.

上記のような熱水供給装置として、深夜電力を利用したものが普及しているが、近年燃料電池システム、コージェネシステム、加熱装置式のもの等を熱源とするものが、提案され、或いは市販されている。これらのシステムにおいては、貯水しておいた熱水に冷水を加えて適当な温度とした上で家庭内において必要個所に給湯している。
また浴室の浴槽の湯を貯水タンクに導いて熱交換して加熱する、所謂追い焚き機能を備えたものが知られている。該熱交換は、貯水タンク内に管路を設け、この管路に浴水を導くことにより行われている。
As the above hot water supply devices, those using midnight power are widespread, but in recent years, those using a fuel cell system, a cogeneration system, a heating device type, etc. as a heat source have been proposed or marketed. ing. In these systems, hot water stored in water is added with cold water to an appropriate temperature, and hot water is supplied to necessary places in the home.
In addition, there is known a so-called reheating function in which hot water in a bathtub in a bathroom is led to a water storage tank and heat is exchanged. The heat exchange is performed by providing a pipe line in the water storage tank and introducing bath water into the pipe line.

特開平7−328340号公報JP 7-328340 A 特開2002−22389号公報JP 2002-22389 A

しかし、上記した従来の構成の場合、浴水を貯水タンクまで導く管路や貯水タンク内の熱交換用の管路に、浴水に含まれる種々の汚れやカルシウム或いは人体から出た油脂分等の不純物が付着する問題があった。特に熱交換器内部には、通常熱交換用の管路が形成されており、この管路に不純物が付着すると、熱伝導を妨げ、熱交換効率を著しく低下させる問題があった。熱交換器の内部は洗浄が難しく、不純物の付着による熱交換効率の低下は大きな問題であった。また、熱交換器内部で細菌が増殖し、その結果臭いや汚れが浴水中に流出する問題もあった。
また、追い焚きは可能であっても、浴水の温度を低下させるには、冷水を追加するか、放熱を待つしかなく、熱水供給装置システム全体の熱エネルギ循環において、熱損失となる問題があった。
本発明は上記従来技術の問題を解決することを目的とする。
However, in the case of the above-described conventional configuration, various dirt and calcium contained in the bath water or oil and fat content from the human body, etc. in the pipe for guiding the bath water to the water storage tank and the heat exchange pipe in the water storage tank, etc. There is a problem that the impurities adhere. In particular, a pipe for exchanging heat is usually formed inside the heat exchanger. If impurities adhere to the pipe, there is a problem that heat conduction is hindered and heat exchange efficiency is remarkably lowered. The inside of the heat exchanger is difficult to clean, and a decrease in heat exchange efficiency due to the adhesion of impurities has been a major problem. In addition, there is a problem that bacteria grow inside the heat exchanger, and as a result, odors and dirt flow into the bath water.
In addition, even if reheating is possible, the only way to lower the temperature of the bath water is to add cold water or wait for heat dissipation, which causes a heat loss in the thermal energy circulation of the entire hot water supply system. was there.
The object of the present invention is to solve the problems of the prior art.

上記目的を達成するために、本発明の熱水供給装置は、冷水を加熱して熱水を生成するための熱水供給手段と、該熱水を貯める貯水手段と、浴水を蓄える浴槽と、該浴槽に連結し、前記貯水手段に貯められた熱水と浴水との間で熱交換を行うための第1熱交換手段と、前記浴槽と該第1熱交換手段との間に浴水を循環させる第1循環管路と、該浴槽に連結し、冷水と浴水との間で熱交換を行うための第2熱交換手段と、前記浴槽と該第2熱交換手段との間に浴水を循環させる第2循環管路と、前記浴槽に前記第1循環管路又は第2循環管路を選択的に連結する切換装置と、前記第1及び/又は第2の循環管路を循環する浴水を浄化及び/又は殺菌するための清浄化装置と、を備えたことを特徴とする。
上記構成によれば、第1熱交換手段により追い焚きが可能であると共に、第2熱交換手段により浴水の冷却が可能である。しかも、冷却による熱は冷水側を昇温するため、この昇温された冷水を有効利用することにより、熱エネルギの損失を抑制できる。また、清浄化装置により熱交換器や循環管路に循環する水に含まれる不純物が浄化されるため、熱交換器内部や管路に不純物が付着することが少なくなり、良好な熱伝導が維持できる。また洗浄及び殺菌を行うため、細菌の増殖が抑制され、浴水への臭いや汚れの排出がなくなる。
また、前記第2熱交換手段において加熱された冷水の熱を回収する熱回収装置を更に設けることも可能であるし、該第2熱交換手段を前記熱水供給手段における加熱前の冷水と浴水との間で熱交換を行うように構成することも可能である。これらの構成により、冷却による熱を有効に回収できる。
更に請求項4の発明においては、前記浴槽が、該浴水を出水する出水口と浴水を入水する入水口とを有し、前記第1熱交換手段が、該出水口と入水口に連結し、前記浴槽の出水口側と入水口側とを所望の時に短絡可能な短絡装置と、該短絡装置により浴槽の出水口側と入水口側とを短絡し、前記熱交換手段により浴水を加熱しつつ該熱交換手段と前記循環管路に浴水を循環させて、該熱交換手段と循環管路を洗浄及び殺菌する洗浄装置と、を備えるように構成しているため、浴槽の手前で管路を短絡して、熱交換手段により浴水を加熱しつつ熱交換手段と循環管路に循環させて、洗浄及び殺菌を行うため、熱交換器内部や管路に付着した不純物を洗浄でき、良好な熱伝導が維持できる。
なお、前記第1熱交換手段又は第2熱交換手段との循環を絶って熱水又は冷水との熱交換を行わず、前記浴槽と清浄化装置との間だけで浴水の循環を行う清浄化モード、を備えるようにすることも可能である。
更に所望の浴水の温度を設定する温度設定手段と、該設定された温度と浴水の温度を比較して、該比較結果に応じて、前記切換装置を制御して、浴槽に前記第1循環管路又は第2循環管路を連結させる制御装置を備えることも可能である。
In order to achieve the above object, a hot water supply device of the present invention comprises a hot water supply means for heating cold water to generate hot water, a water storage means for storing the hot water, and a bathtub for storing bath water. A first heat exchanging means connected to the bathtub and exchanging heat between the hot water stored in the water storage means and the bath water, and a bath between the bathtub and the first heat exchanging means. A first circulation line for circulating water, a second heat exchange means connected to the bathtub and for exchanging heat between the cold water and the bath water, and between the bathtub and the second heat exchange means A second circulation line for circulating bath water, a switching device for selectively connecting the first circulation line or the second circulation line to the bathtub, and the first and / or second circulation lines. And a cleaning device for purifying and / or sterilizing bath water circulating in the water.
According to the above configuration, the first heat exchanging means can catch up, and the second heat exchanging means can cool the bath water. In addition, since heat due to cooling raises the temperature of the cold water, the loss of heat energy can be suppressed by effectively using the raised cold water. In addition, since the cleaning device purifies impurities contained in the water circulating in the heat exchanger and the circulation line, the impurities are less likely to adhere inside the heat exchanger and the line, and good heat conduction is maintained. it can. Moreover, since washing and sterilization are performed, the growth of bacteria is suppressed, and the discharge of odor and dirt into the bath water is eliminated.
Further, it is possible to further provide a heat recovery device for recovering the heat of the cold water heated in the second heat exchange means, and the second heat exchange means is used as a cold water and a bath before heating in the hot water supply means. It is also possible to configure heat exchange with water. With these configurations, heat due to cooling can be effectively recovered.
Furthermore, in the invention of claim 4, the bathtub has a water outlet for discharging the bath water and a water inlet for receiving the bath water, and the first heat exchanging means is connected to the water outlet and the water inlet. A short-circuit device that can short-circuit the water outlet side and the water inlet side of the bathtub at a desired time, and the short-circuit device short-circuits the water outlet side and the water inlet side of the bathtub. Since the heat exchange means and the circulation line are heated and the bath water is circulated, the heat exchange means and the washing device for washing and sterilizing the circulation line are provided. In order to perform cleaning and sterilization by short-circuiting the pipe line and circulating it through the heat exchange means and the circulation pipe while heating the bath water by the heat exchange means, the impurities adhering to the inside of the heat exchanger and the pipe line are washed. And good heat conduction can be maintained.
It should be noted that the cleaning with the circulation of the bath water only between the bathtub and the cleaning device without performing the heat exchange with the hot water or the cold water without interrupting the circulation with the first heat exchange means or the second heat exchange means. It is also possible to provide a conversion mode.
Further, a temperature setting means for setting a desired bath water temperature, the set temperature and the bath water temperature are compared, and the switching device is controlled according to the comparison result, so that the first in the bathtub. It is also possible to provide a control device for connecting the circulation line or the second circulation line.

本発明の熱水供給装置によれば、浴水の加熱と冷却を熱損失を抑制しつつ行うことが可能であり、また管路の清浄度を維持でき、熱交換の効率性を維持できる効果がある。   According to the hot water supply device of the present invention, heating and cooling of bath water can be performed while suppressing heat loss, and the cleanliness of the pipeline can be maintained, and the efficiency of heat exchange can be maintained. There is.

以下本発明の実施の形態を図面に基づいて説明する。
図1において、熱水供給手段としての加熱装置50により生成された熱水は貯湯タンク51に蓄えられるようになっている。
冷水タンク13には給水管63から減圧弁62を経由して導入された冷水が蓄えられ、通常冷水タンク13側に接続している切替弁17を経由してポンプ60により加熱装置50におくられ、ここで熱水となって、貯湯タンク51頂部から貯湯タンク51の上部に導入され、ここに蓄えられるようになっている。切替弁17は貯湯タンク51の熱水温度が所定値以下になった時に、貯湯タンク51側に切り替わり、貯湯タンク51内の熱水の再加熱を行うようになっている。
Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, hot water generated by a heating device 50 as hot water supply means is stored in a hot water storage tank 51.
Cold water introduced from the water supply pipe 63 via the pressure reducing valve 62 is stored in the cold water tank 13 and is put in the heating device 50 by the pump 60 via the switching valve 17 connected to the normal cold water tank 13 side. Here, the hot water is introduced from the top of the hot water storage tank 51 to the upper part of the hot water storage tank 51 and stored therein. The switching valve 17 switches to the hot water storage tank 51 side when the hot water temperature in the hot water storage tank 51 becomes a predetermined value or less, and reheats the hot water in the hot water storage tank 51.

貯湯タンク51の熱水は混合弁61において給水管63からの冷水と混合され、所定温度まで冷却された上で、給湯管64により所定の箇所に給湯されるように構成されている。   The hot water in the hot water storage tank 51 is mixed with cold water from the water supply pipe 63 in the mixing valve 61, cooled to a predetermined temperature, and then supplied to a predetermined location by the hot water supply pipe 64.

貯湯タンク51の内部には第1の熱交換器1が設けられている。熱交換器1は、何重にも折り曲げられた管路10から構成され、貯湯タンク51の内部を蛇行しつつ、管路10内部の水の温度を昇温するように構成されている。   A first heat exchanger 1 is provided in the hot water storage tank 51. The heat exchanger 1 includes a pipe line 10 that is bent several times, and is configured to raise the temperature of water inside the pipe line 10 while meandering the inside of the hot water storage tank 51.

熱交換器1は循環路2,2’により浴槽52の入水口53と出水口54に接続し、浴槽52からの浴水を導入し、昇温して再び浴槽52に戻すようになっている。   The heat exchanger 1 is connected to the water inlet 53 and the water outlet 54 of the bathtub 52 through the circulation paths 2 and 2 ′, introduces bath water from the bathtub 52, rises in temperature, and returns to the bathtub 52 again. .

循環路2、2’の熱交換器1の近傍には熱交換切替弁15が設けられており、分岐循環路16、16’を経由して、選択的に第2の熱交換器11に接続している。熱交換器11は冷水タンク13内部に設けられた管路12を有しており、浴水を管路12に通すことにより冷水タンク13の冷水と熱交換を行い、浴水の冷却をするように構成されている。   A heat exchange switching valve 15 is provided in the vicinity of the heat exchanger 1 in the circulation paths 2 and 2 ′, and selectively connected to the second heat exchanger 11 via the branch circulation paths 16 and 16 ′. is doing. The heat exchanger 11 has a pipe line 12 provided in the cold water tank 13. The bath water is passed through the pipe line 12 to exchange heat with the cold water in the cold water tank 13 to cool the bath water. It is configured.

循環路2、2’の途中に清浄化装置3が設けられ、ここを循環する水を清浄化するように構成されている。清浄化装置3はポンプ30を備え、水を切替弁31を経由して循環路2’から管路10に送り、循環路2を通って清浄化装置3を経由した上で浴槽52に戻すようになっている。   A cleaning device 3 is provided in the middle of the circulation paths 2, 2 ′, and is configured to clean water circulating therethrough. The cleaning device 3 includes a pump 30, and sends water from the circulation path 2 ′ to the pipe line 10 through the switching valve 31, and returns to the bathtub 52 through the circulation path 2 and the cleaning device 3. It has become.

循環路2の途中にはUVランプ33、ろ過タンク34、電解殺菌装置35が設けられており、浴水はUVランプ33で殺菌され、ろ過タンク34でろ過され、電解殺菌装置35により再び殺菌されて入水口53から浴槽52内に戻るように構成されている。
ろ過タンク34の出側には排水管37が設けられ、排水弁36を操作することにより浴水を系外に排出できるようになっている。
A UV lamp 33, a filtration tank 34, and an electrolytic sterilization device 35 are provided in the middle of the circulation path 2. The bath water is sterilized by the UV lamp 33, filtered by the filtration tank 34, and sterilized again by the electrolytic sterilization device 35. The water inlet 53 is configured to return into the bathtub 52.
A drain pipe 37 is provided on the outlet side of the filtration tank 34, and bath water can be discharged out of the system by operating the drain valve 36.

循環路2と循環路2’の浴槽52側、即ち入水口53と出水口54の近傍には短絡装置4が設けられており、循環路2と循環路2’を短絡して、浴水を浴槽52に戻さずに循環させることが出来るようになっている。   A short-circuit device 4 is provided on the side of the tub 52 of the circulation path 2 and the circulation path 2 ′, that is, in the vicinity of the water inlet 53 and the water outlet 54. The short circuit between the circulation path 2 and the circulation path 2 ′ It can be made to circulate without returning to the bathtub 52.

短絡装置4には短絡弁40が設けられており、短絡/非短絡を選択できるようになっている。即ち、短絡弁40を切り替えて、短絡管路41を導通させ、循環路2と循環路2’を短絡させると、ポンプ30、切替弁31、を通って循環路2’から管路10に入り、ここで高温に熱せられて循環路2から逆止弁32、UVランプ33、ろ過タンク34、排水弁36を通過して短絡弁40、短絡管路41に戻る回路が形成される。この回路により、浴水は熱交換器1の管路10により高温に熱せられた状態で循環路2、循環路2’及び熱交換器1の管路10内を循環し、その内部を洗浄する。洗浄後は、排水弁36を排水管37側に切り替えて、排水するようになっている。   The short-circuit device 4 is provided with a short-circuit valve 40 so that short-circuit / non-short-circuit can be selected. That is, when the short-circuit valve 40 is switched, the short-circuit line 41 is conducted, and the circulation path 2 and the circulation path 2 ′ are short-circuited, the pump 30 and the switching valve 31 are passed through the circulation path 2 ′ to the pipeline 10. Here, a circuit is formed which is heated to a high temperature and passes from the circulation path 2 through the check valve 32, the UV lamp 33, the filtration tank 34 and the drain valve 36 and returns to the short-circuit valve 40 and the short-circuit line 41. By this circuit, the bath water circulates in the circulation path 2, the circulation path 2 ′ and the pipeline 10 of the heat exchanger 1 while being heated to a high temperature by the pipeline 10 of the heat exchanger 1, and cleans the inside. . After washing, the drain valve 36 is switched to the drain pipe 37 side for drainage.

上記した、管路内部の洗浄は制御装置5により行われる。即ち制御装置5は、図1の装置全体の制御を行っており、特に切替弁31、排水弁36、短絡弁40の開閉、ポンプ30とポンプ60の駆動制御を行うように構成されている。洗浄の際には、短絡弁40を短絡装置4側に開として短絡管路41を導通させ、ポンプ30を所定時間駆動して、高温の浴水を循環させ、所定時間後に排水弁36を切り替えて排水管37から洗浄を行った循環水を系外に排出して洗浄を完了するようになっている。
なお、連絡管路38はUVランプ33と切替弁31を短絡する管路であり、浴水の浄化モードのときに使用するものである。
The above-described cleaning of the inside of the pipe line is performed by the control device 5. That is, the control device 5 controls the entire device shown in FIG. 1, and is particularly configured to open / close the switching valve 31, the drain valve 36, the short-circuit valve 40, and drive control of the pump 30 and the pump 60. At the time of cleaning, the short-circuit valve 40 is opened to the short-circuit device 4 side, the short-circuit line 41 is conducted, the pump 30 is driven for a predetermined time, high-temperature bath water is circulated, and the drain valve 36 is switched after a predetermined time. Then, the circulated water cleaned from the drain pipe 37 is discharged out of the system to complete the cleaning.
The connecting pipe 38 is a pipe that short-circuits the UV lamp 33 and the switching valve 31 and is used in the bath water purification mode.

制御装置5には湯温設定装置6が設けられており、湯温センサ7により検出された浴水の温度を湯温設定装置6で設定された温度に維持するように構成されている。即ち、切替弁31と熱交換切替弁15を温度により制御して、浴水を加温(追い焚き)、冷却、殺菌浄化、の3つのモードで選択的に運転するようになっている。   The controller 5 is provided with a hot water temperature setting device 6, and is configured to maintain the temperature of the bath water detected by the hot water temperature sensor 7 at the temperature set by the hot water temperature setting device 6. In other words, the switching valve 31 and the heat exchange switching valve 15 are controlled by temperature, and the bath water is selectively operated in three modes: heating (chasing), cooling, and sterilization purification.

加温の場合は、切替弁31を循環路2’側に切り替え、また熱交換切替弁15を熱交換器1側に切り替える。浴水は、出水口54からポンプ30、切替弁31、循環路2’、熱交換切替弁15、管路10、熱交換切替弁15、循環路2、逆止弁32、UVランプ33、ろ過タンク34、排水弁36、短絡弁40、入水口53というルートで循環し、熱交換器1の管路10による加温を行う。   In the case of heating, the switching valve 31 is switched to the circulation path 2 'side, and the heat exchange switching valve 15 is switched to the heat exchanger 1 side. The bath water is supplied from the outlet 54 through the pump 30, the switching valve 31, the circulation path 2 ', the heat exchange switching valve 15, the pipe 10, the heat exchange switching valve 15, the circulation path 2, the check valve 32, the UV lamp 33, and the filtration. It circulates in the route of the tank 34, the drain valve 36, the short circuit valve 40, and the water inlet 53, and heats by the pipe line 10 of the heat exchanger 1.

冷却の場合は、熱交換切替弁15を分岐循環路16、16’側に切り替え、浴水を、出水口54からポンプ30、切替弁31、循環路2’、熱交換切替弁15、分岐循環路16’、管路12、分岐循環路16、循環路2、逆止弁32、UVランプ33、ろ過タンク34、排水弁36、短絡弁40、入水口53というルートで循環させ、熱交換器11の管路12による浴水の冷却を行う。   In the case of cooling, the heat exchange switching valve 15 is switched to the branch circulation path 16, 16 'side, and the bath water is supplied from the outlet 54 to the pump 30, the switching valve 31, the circulation path 2', the heat exchange switching valve 15, the branch circulation. The heat exchanger is made to circulate through the route of the path 16 ', the pipe 12, the branch circuit 16, the circuit 2, the check valve 32, the UV lamp 33, the filtration tank 34, the drain valve 36, the short-circuit valve 40, and the water inlet 53. Cooling of the bath water is performed by 11 pipe lines 12.

循環の場合は、切替弁31をUVランプ33側に切り替え、浴水を、出水口54からポンプ30、切替弁31、連結管路38、UVランプ33,ろ過タンク34、排水弁36、短絡弁40、入水口53のルートで循環させ、UVランプ33、ろ過タンク34、電解殺菌装置35による浴水の浄化、殺菌を行うようになっている。   In the case of circulation, the switching valve 31 is switched to the UV lamp 33 side, and the bath water is supplied from the outlet 54 to the pump 30, the switching valve 31, the connecting pipe 38, the UV lamp 33, the filtration tank 34, the drain valve 36, and the short-circuit valve. 40, it is made to circulate through the route of the water inlet 53, and purification and sterilization of the bath water by the UV lamp 33, the filtration tank 34, and the electrolytic sterilizer 35 are performed.

図2は他の実施形態を示すもので、ここでは冷水タンク13を設けずに、貯湯タンク51の下部の冷水により浴水の冷却を行うようになっている。
即ち、貯湯タンク51の下部に熱交換器11の管路12を設け、貯湯タンク51下部の冷水と熱交換をして、浴水の冷却を行うようになっている。
FIG. 2 shows another embodiment. Here, the cold water tank 13 is not provided, and bath water is cooled by cold water at the lower part of the hot water storage tank 51.
That is, the pipe 12 of the heat exchanger 11 is provided in the lower part of the hot water storage tank 51, and heat is exchanged with the cold water in the lower part of the hot water storage tank 51 to cool the bath water.

次に図3のフローチャートに基づいて、動作を説明する。
給湯モードか否かチェックし(ステップS1)、給湯モードの場合には給湯サブルーチンに飛ぶ(ステップS10)。湯温の設定と記憶を行い(ステップS2,3)、終了か否かチェックし(ステップS4)、熱殺菌が指示されたら(ステップS5)、熱殺菌を実行する(ステップS20)。
熱殺菌でない場合には、湯温センサ7からの浴槽52の浴水の温度を検出し(ステップS6)、記憶した設定温度と比較する(ステップS7)。設定温度内の場合には、殺菌浄化モードの運転を行う(ステップS30)。設定温度よりも低い場合には(ステップS8)、昇温モードの運転を行い(ステップS40)、設定温度よりも高い場合には、冷却モードの運転を行う(ステップS50)。
Next, the operation will be described based on the flowchart of FIG.
It is checked whether or not it is in the hot water supply mode (step S1). The hot water temperature is set and stored (steps S2 and S3), and it is checked whether or not it is finished (step S4).
If it is not thermal sterilization, the temperature of the bath water in the bathtub 52 from the hot water temperature sensor 7 is detected (step S6) and compared with the stored set temperature (step S7). If the temperature is within the set temperature, the sterilization purification mode is operated (step S30). When the temperature is lower than the set temperature (step S8), the operation in the temperature raising mode is performed (step S40). When the temperature is higher than the set temperature, the operation in the cooling mode is performed (step S50).

図4によりステップ20の熱殺菌のサブルーチンを説明する。
熱交換切替弁15を熱交換器1側に切り替えておき(ステップS21)、排水弁36を短絡弁40側に設定しておく(ステップS22)。また制御装置5は、短絡弁40を短絡管路41側に切り替えて、循環路2、2’を浴槽52の手前で短絡し、即ち入水口53と出水口54を短絡し、循環路2’、管路10、循環路2の閉ループを形成する(ステップS23)。この状態で、ポンプ30を駆動し、切替弁31、循環路2’、管路10、循環路2、逆止弁32、UVランプ33、ろ過タンク34、排水弁36、短絡弁40、短絡管路41という回路で水を循環させる。この間、該循環水は管路10で高温に熱せられるから、管路10、循環路2、循環路2’の管路内部を高温で洗浄することになる。
加えて、UVランプ33で殺菌され、ろ過タンク34でろ過され、更に電解殺菌装置35による殺菌も行われるため、洗浄効果は更に大きくなる。
所定時間洗浄したら(ステップS24)、制御装置5は排水弁36を排水管37側に開いて(ステップS25)、洗浄に供した循環水を排水管37から系外に排出する。所定時間経過後(ステップS26)、排水弁36を短絡弁40側に戻す(ステップS27)。
以上により、熱交換器1の管路10、循環路2、循環路2’の内部の洗浄が効果的に実行できる。
The heat sterilization subroutine of step 20 will be described with reference to FIG.
The heat exchange switching valve 15 is switched to the heat exchanger 1 side (step S21), and the drain valve 36 is set to the short-circuit valve 40 side (step S22). Further, the control device 5 switches the short-circuit valve 40 to the short-circuit line 41 side and short-circuits the circulation paths 2 and 2 ′ in front of the bathtub 52, that is, short-circuits the water inlet 53 and the water outlet 54, and the circulation path 2 ′. Then, a closed loop of the pipe line 10 and the circulation path 2 is formed (step S23). In this state, the pump 30 is driven, the switching valve 31, the circulation path 2 ′, the pipeline 10, the circulation path 2, the check valve 32, the UV lamp 33, the filtration tank 34, the drain valve 36, the short-circuit valve 40, and the short-circuit pipe. Water is circulated in a circuit called path 41. During this time, since the circulating water is heated to a high temperature in the pipe 10, the insides of the pipe 10, the circulation path 2, and the circulation path 2 'are washed at a high temperature.
In addition, it is sterilized by the UV lamp 33, filtered by the filtration tank 34, and further sterilized by the electrolytic sterilizer 35, so that the cleaning effect is further increased.
After washing for a predetermined time (step S24), the control device 5 opens the drain valve 36 toward the drain pipe 37 (step S25), and discharges the circulating water used for washing out of the system from the drain pipe 37. After a predetermined time has elapsed (step S26), the drain valve 36 is returned to the short-circuit valve 40 side (step S27).
By the above, the inside of the pipe line 10, the circulation path 2, and the circulation path 2 ′ of the heat exchanger 1 can be effectively executed.

なお、排水前に熱交換切替弁15を管路12側に切り替えて、高温の循環水を管路12に循環させることにより、冷水タンク13の冷水と熱交換を行い、高温循環水の熱回収を行うことも可能である。   Before draining, the heat exchange switching valve 15 is switched to the pipe 12 side, and the high-temperature circulating water is circulated through the pipe 12 to exchange heat with the cold water in the cold water tank 13, thereby recovering the heat of the high-temperature circulating water. It is also possible to perform.

次に図5により殺菌浄化モードの動作を説明する。
切替弁31を連結管路38側に設定し、(ステップS31)、排水弁36を短絡弁40側に設定し(ステップS32)、短絡弁40を入水口53側に設定する(ステップS33)。この状態でポンプ30を駆動すれば、浴水は出水口54からポンプ30、切替弁31、連絡管路38、UVランプ33、ろ過タンク34、排水弁36、短絡弁40、入水口53という循環を行い、浴水をUVランプ33、ろ過タンク34及び電解殺菌装置35において殺菌、ろ過しつつ、循環させることができる。湯温センサ7の検出温度が設定温度外になったら(ステップS34)、ステップS4に戻る。また、このルーチンを終了する場合も(ステップS35)、ステップS4に戻る。
Next, the operation in the sterilization purification mode will be described with reference to FIG.
The switching valve 31 is set on the connection pipe line 38 side (step S31), the drain valve 36 is set on the short circuit valve 40 side (step S32), and the short circuit valve 40 is set on the water inlet 53 side (step S33). If the pump 30 is driven in this state, the bath water circulates from the water outlet 54 to the pump 30, the switching valve 31, the connecting pipe 38, the UV lamp 33, the filtration tank 34, the drain valve 36, the short-circuit valve 40, and the water inlet 53. The bath water can be circulated while being sterilized and filtered in the UV lamp 33, the filtration tank 34, and the electrolytic sterilizer 35. When the detected temperature of the hot water temperature sensor 7 is outside the set temperature (step S34), the process returns to step S4. Moreover, also when this routine is complete | finished (step S35), it returns to step S4.

次にステップS40の昇温モード(追い焚き)の動作を図6により説明する。
切替弁31を循環路2’側に設定し(ステップS41)、熱交換切替弁15を熱交換器1側に設定する(ステップS42)。そして、短絡弁40を入水口53側に切り替える(ステップS43)。
浴槽52の浴水は出水口54からポンプ30を経由し、切替弁31を通過して循環路2’から熱交換器1の管路10に入り、ここで熱交換され加温されて循環路2から清浄化装置3を通って、浴槽52に戻され、昇温、追い焚きが行われる。
清浄化装置3においては、浴水はUVランプ33、ろ過タンク34、電解殺菌装置35により殺菌及びろ過されるため、熱交換器1の管路10内部及び循環路2、2’の内部に不純物が付着することが抑制される。そのため熱交換器1の熱交換効果を維持できる効果がある。
湯温センサ7による浴水温度が設定範囲外になったら(ステップS44)、ステップS4に戻る。
Next, the operation in the temperature raising mode (chase) in step S40 will be described with reference to FIG.
The switching valve 31 is set on the circulation path 2 ′ side (step S41), and the heat exchange switching valve 15 is set on the heat exchanger 1 side (step S42). And the short circuit valve 40 is switched to the water inlet 53 side (step S43).
The bath water in the bathtub 52 passes through the pump 30 from the outlet 54, passes through the switching valve 31 and enters the pipe line 10 of the heat exchanger 1 from the circulation path 2 ′, where it is heat-exchanged and heated to be the circulation path. 2 is passed through the cleaning device 3 and returned to the bathtub 52, where the temperature is raised and retreated.
In the cleaning device 3, the bath water is sterilized and filtered by the UV lamp 33, the filtration tank 34, and the electrolytic sterilization device 35, so that impurities are present in the pipe 10 of the heat exchanger 1 and in the circulation paths 2 and 2 ′. Is prevented from adhering. Therefore, there is an effect that the heat exchange effect of the heat exchanger 1 can be maintained.
When the bath water temperature by the hot water temperature sensor 7 is outside the set range (step S44), the process returns to step S4.

次にステップS50の冷却モードの動作を図7により説明する。
切替弁31を循環路2’側に設定し(ステップS51)、熱交換切替弁15を熱交換器11側に設定する(ステップS52)。そして、短絡弁40を入水口53側に切り替える(ステップS53)。浴槽52の浴水は出水口54からポンプ30を経由し、切替弁31を通過して循環路2’から熱交換器11の管路12に入り、ここで熱交換され冷却されて循環路2から清浄化装置3を通って、浴槽52に戻され、浴水の冷却が行われる。
清浄化装置3においては、浴水はUVランプ33、ろ過タンク34、電解殺菌装置35により殺菌及びろ過されるため、熱交換器11の管路12内部及び循環路2、2’の内部に不純物が付着することが抑制される。そのため熱交換器11の熱交換効果を維持できる効果がある。
湯温センサ7による浴水温度が設定範囲外になったら(ステップS54)、ステップS4に戻る。
以上の冷却モードにおいては、浴水に水を足すことなく冷却を行うことができる。しかも、冷水タンク13の冷水はヒートポンプ50に送られて加熱され、熱水として利用されるから、浴水からの吸熱分は熱水として再利用でき、熱回収が行われ、エネルギ効率の向上を図ることができる。
Next, the operation in the cooling mode in step S50 will be described with reference to FIG.
The switching valve 31 is set on the circulation path 2 ′ side (step S51), and the heat exchange switching valve 15 is set on the heat exchanger 11 side (step S52). And the short circuit valve 40 is switched to the water inlet 53 side (step S53). The bath water in the bathtub 52 passes through the pump 30 from the outlet 54, passes through the switching valve 31, enters the pipe 12 of the heat exchanger 11 from the circulation path 2 ', is heat-exchanged and cooled here, and is cooled. Is passed through the cleaning device 3 and returned to the bathtub 52 to cool the bath water.
In the cleaning device 3, the bath water is sterilized and filtered by the UV lamp 33, the filtration tank 34, and the electrolytic sterilization device 35. Therefore, impurities are present in the pipe 12 of the heat exchanger 11 and in the circulation paths 2 and 2 ′. Is prevented from adhering. Therefore, there is an effect that the heat exchange effect of the heat exchanger 11 can be maintained.
When the bath water temperature by the hot water temperature sensor 7 is outside the set range (step S54), the process returns to step S4.
In the above cooling mode, cooling can be performed without adding water to the bath water. Moreover, since the cold water in the cold water tank 13 is sent to the heat pump 50 to be heated and used as hot water, the endothermic component from the bath water can be reused as hot water, heat recovery is performed, and energy efficiency is improved. Can be planned.

なお、図2の実施形態においても、動作は上記と同一であるから、説明を省略する。   In the embodiment of FIG. 2 as well, the operation is the same as described above, and thus the description thereof is omitted.

本発明の一実施形態を示す説明図。Explanatory drawing which shows one Embodiment of this invention. 本発明の他の実施形態を示す説明図。Explanatory drawing which shows other embodiment of this invention. 本発明の一実施形態の動作を説明するフローチャート図。The flowchart figure explaining operation | movement of one Embodiment of this invention. 本発明の一実施形態の動作を説明するフローチャート図。The flowchart figure explaining operation | movement of one Embodiment of this invention. 本発明の一実施形態の動作を説明するフローチャート図。The flowchart figure explaining operation | movement of one Embodiment of this invention. 本発明の一実施形態の動作を説明するフローチャート図。The flowchart figure explaining operation | movement of one Embodiment of this invention. 本発明の一実施形態の動作を説明するフローチャート図。The flowchart figure explaining operation | movement of one Embodiment of this invention.

符号の説明Explanation of symbols

1:熱交換器、2、2’:循環路、3:清浄化装置、4:短絡装置、5:制御装置、6:湯温設定装置、7:湯温センサ、10:管路、11:熱交換器、12:管路、13:冷水タンク、15:熱交換切替弁、16:分岐循環路、17:切替弁、30:ポンプ、31:切替弁、32:逆止弁、33:UVランプ、34:ろ過タンク、35:電解殺菌装置、36:排水弁、37:排水管、38:連絡管路、40:短絡弁、41:短絡管路、50:加熱装置、51:貯湯タンク、52:浴槽、53:入水口、54:出水口、60:ポンプ、61:混合弁、62:減圧弁、63:給水管、64:給湯管。
1: heat exchanger, 2, 2 ′: circuit, 3: cleaning device, 4: short circuit device, 5: control device, 6: hot water temperature setting device, 7: hot water temperature sensor, 10: pipe, 11: Heat exchanger, 12: pipeline, 13: cold water tank, 15: heat exchange switching valve, 16: branch circuit, 17: switching valve, 30: pump, 31: switching valve, 32: check valve, 33: UV Lamp: 34: Filtration tank, 35: Electrolytic sterilizer, 36: Drain valve, 37: Drain pipe, 38: Connection pipe, 40: Short-circuit valve, 41: Short-circuit pipe, 50: Heating device, 51: Hot water storage tank, 52: bathtub, 53: water inlet, 54: water outlet, 60: pump, 61: mixing valve, 62: pressure reducing valve, 63: water supply pipe, 64: hot water supply pipe.

Claims (6)

冷水を加熱して熱水を生成するための熱水供給手段と、
該熱水を貯める貯水手段と、
浴水を蓄える浴槽と、
該浴槽に連結し、前記貯水手段に貯められた熱水と浴水との間で熱交換を行うための第1熱交換手段と、
前記浴槽と該第1熱交換手段との間に浴水を循環させる第1循環管路と、
該浴槽に連結し、冷水と浴水との間で熱交換を行うための第2熱交換手段と、
前記浴槽と該第2熱交換手段との間に浴水を循環させる第2循環管路と、
前記浴槽に前記第1循環管路又は第2循環管路を選択的に連結する切換装置と、
前記第1及び/又は第2の循環管路を循環する浴水を浄化及び/又は殺菌するための清浄化装置と、
を備えたことを特徴とする熱水供給装置。
Hot water supply means for generating cold water by heating cold water;
Water storage means for storing the hot water;
A bathtub for storing bath water,
A first heat exchanging means connected to the bathtub for exchanging heat between the hot water stored in the water storage means and the bath water;
A first circulation line for circulating bath water between the bathtub and the first heat exchange means;
A second heat exchange means connected to the bathtub for exchanging heat between cold water and bath water;
A second circulation line for circulating bath water between the bathtub and the second heat exchange means;
A switching device for selectively connecting the first circulation line or the second circulation line to the bathtub;
A cleaning device for purifying and / or sterilizing the bath water circulating through the first and / or second circulation lines;
A hot water supply device comprising:
前記第2熱交換手段において加熱された冷水の熱を回収する熱回収装置を更に設けた、
請求項1に記載の熱水供給装置。
A heat recovery device for recovering heat of the cold water heated in the second heat exchange means;
The hot water supply device according to claim 1.
冷水を加熱して熱水を生成するための熱水供給手段と、
該熱水を貯める貯水手段と、
浴水を蓄える浴槽と、
該浴槽に連結し、前記貯水手段に貯められた熱水と浴水との間で熱交換を行うための第1熱交換手段と、
前記浴槽と該第1熱交換手段との間に浴水を循環させる第1循環管路と、
該浴槽に連結し、前記熱水供給手段における加熱前の冷水と浴水との間で熱交換を行うための第2熱交換手段と、
前記浴槽と該第2熱交換手段との間に浴水を循環させる第2循環管路と、
前記浴槽に前記第1循環管路又は第2循環管路を選択的に連結する切換装置と、
前記第1及び/又は第2の循環管路を循環する浴水を浄化及び/又は殺菌するための清浄化装置と、
を備えたことを特徴とする熱水供給装置。
Hot water supply means for generating cold water by heating cold water;
Water storage means for storing the hot water;
A bathtub for storing bath water,
A first heat exchanging means connected to the bathtub for exchanging heat between the hot water stored in the water storage means and the bath water;
A first circulation line for circulating bath water between the bathtub and the first heat exchange means;
A second heat exchanging means connected to the bath for exchanging heat between the cold water and the bath water before heating in the hot water supply means;
A second circulation line for circulating bath water between the bathtub and the second heat exchange means;
A switching device for selectively connecting the first circulation line or the second circulation line to the bathtub;
A cleaning device for purifying and / or sterilizing the bath water circulating through the first and / or second circulation lines;
A hot water supply device comprising:
前記浴槽が、該浴水を出水する出水口と浴水を入水する入水口とを有し、
前記第1熱交換手段が、該出水口と入水口に連結し、
前記浴槽の出水口側と入水口側とを所望の時に短絡可能な短絡装置と、
該短絡装置により浴槽の出水口側と入水口側とを短絡し、前記熱交換手段により浴水を加熱しつつ該熱交換手段と前記循環管路に浴水を循環させて、該熱交換手段と循環管路を洗浄及び殺菌する洗浄装置と、
を備えた請求項1又は2又は3の熱水供給装置。
The bathtub has a water outlet for discharging the bath water and a water inlet for receiving the bath water;
The first heat exchanging means is connected to the water outlet and the water inlet;
A short-circuit device capable of short-circuiting the water outlet side and the water inlet side of the bathtub at a desired time;
Short-circuiting the water outlet side and the water inlet side of the bathtub by the short-circuit device, and circulating the bath water through the heat exchange means and the circulation line while heating the bath water by the heat exchange means, the heat exchange means And a cleaning device for cleaning and sterilizing the circulation line,
The hot water supply device according to claim 1, 2 or 3.
前記第1熱交換手段又は第2熱交換手段との循環を絶って熱水又は冷水との熱交換を行わず、前記浴槽と清浄化装置との間だけで浴水の循環を行う清浄化モード、
を備えた請求項1又は2又は3又は4の熱水供給装置。
A cleaning mode in which the circulation of the bath water is performed only between the bathtub and the cleaning device without the heat exchange with the hot water or the cold water without the circulation with the first heat exchange means or the second heat exchange means. ,
The hot water supply device according to claim 1, 2, 3 or 4.
冷水を加熱して熱水を生成するための熱水供給手段と、
該熱水を貯める貯水手段と、
浴水を蓄える浴槽と、
該浴槽に連結し、前記貯水手段に貯められた熱水と浴水との間で熱交換を行うための第1熱交換手段と、
前記浴槽と該第1熱交換手段との間に浴水を循環させる第1循環管路と、
該浴槽に連結し、冷水と浴水との間で熱交換を行うための第2熱交換手段と、
前記浴槽と該第2熱交換手段との間に浴水を循環させる第2循環管路と、
前記浴槽に前記第1循環管路又は第2循環管路を選択的に連結する切換装置と、
前記第1及び/又は第2の循環管路を循環する浴水を浄化及び/又は殺菌するための清浄化装置と、
所望の浴水の温度を設定する温度設定手段と、
該設定された温度と浴水の温度を比較して、該比較結果に応じて、前記切換装置を制御して、浴槽に前記第1循環管路又は第2循環管路を連結させる、制御装置と、
を備えたことを特徴とする熱水供給装置。
Hot water supply means for generating cold water by heating cold water;
Water storage means for storing the hot water;
A bathtub for storing bath water,
A first heat exchanging means connected to the bathtub for exchanging heat between the hot water stored in the water storage means and the bath water;
A first circulation line for circulating bath water between the bathtub and the first heat exchange means;
A second heat exchange means connected to the bathtub for exchanging heat between cold water and bath water;
A second circulation line for circulating bath water between the bathtub and the second heat exchange means;
A switching device for selectively connecting the first circulation line or the second circulation line to the bathtub;
A cleaning device for purifying and / or sterilizing the bath water circulating through the first and / or second circulation lines;
Temperature setting means for setting a desired bath water temperature;
A control device that compares the set temperature with the bath water temperature, controls the switching device according to the comparison result, and connects the first circulation pipe or the second circulation pipe to the bathtub. When,
A hot water supply device comprising:
JP2005093873A 2005-03-29 2005-03-29 Hot water supply device Expired - Fee Related JP4673651B2 (en)

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JP2012002460A (en) * 2010-06-18 2012-01-05 Gastar Corp Bath device
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