JP3417184B2 - Combustion equipment - Google Patents
Combustion equipmentInfo
- Publication number
- JP3417184B2 JP3417184B2 JP01853996A JP1853996A JP3417184B2 JP 3417184 B2 JP3417184 B2 JP 3417184B2 JP 01853996 A JP01853996 A JP 01853996A JP 1853996 A JP1853996 A JP 1853996A JP 3417184 B2 JP3417184 B2 JP 3417184B2
- Authority
- JP
- Japan
- Prior art keywords
- heating
- hot water
- bath
- circulation
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 43
- 238000010438 heat treatment Methods 0.000 claims description 603
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 472
- 238000003303 reheating Methods 0.000 claims description 93
- 239000008236 heating water Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 8
- 239000002737 fuel gas Substances 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 230000000153 supplemental effect Effects 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 238000003287 bathing Methods 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 102220638341 Spartin_F24D_mutation Human genes 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Control For Baths (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本願発明は、給湯機能、暖房
機能、および風呂追い焚き機能を有する給湯装置などの
燃焼装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion device such as a hot water supply device having a hot water supply function, a heating function, and a bath reheating function.
【0002】[0002]
【従来の技術】給湯機能、暖房機能、および風呂追い焚
き機能を有する給湯装置として、風呂追い焚き時には、
暖房用循環流路と風呂追い焚き用循環流路との間で熱交
換を行うことにより風呂追い焚き用循環流路の湯水を温
度上昇させ、浴槽への給湯あるいは給水時には、風呂給
湯用通水流路と風呂追い焚き用循環流路とを介して給湯
あるいは給水を行うタイプのものがあった。2. Description of the Related Art As a hot water supply device having a hot water supply function, a heating function, and a bath reheating function, at the time of reheating the bath,
By exchanging heat between the circulation channel for heating and the circulation channel for reheating the bath, the temperature of the hot water in the circulation channel for reheating the bath is raised, and when the hot water is supplied to the bathtub or when water is supplied, the water flow for bath hot water supply There has been a type in which hot water is supplied or water is supplied through a channel and a circulation channel for reheating the bath.
【0003】このようなタイプの給湯装置においては、
風呂給湯用通水流路と風呂追い焚き用循環流路とを介し
て給湯あるいは給水を行うに際して、風呂追い焚き用循
環流路の暖房用循環流路との熱交換部分をも通水路とし
て用いていた。すなわち、風呂給湯用通水流路と風呂追
い焚き用循環流路との合流点と浴槽との間には、風呂追
い焚き用循環流路により2本の通水路が形成され、その
うち一方は暖房用循環流路との熱交換部分を通り、他方
は熱交換部分を通らないのであるが、風呂追い焚き用循
環流路の断面積は風呂給湯用通水流路の断面積と比較し
て小さいので、双方の通水路を同時に使用することによ
り、給湯あるいは給水を迅速に行うように工夫されてい
た。In the hot water supply device of this type,
When hot water is supplied or supplied through the hot water supply passage for bath hot water and the circulation passage for bath reheating, the heat exchange part of the circulation passage for heating the bath with the circulation passage for heating is also used as a water passage. It was That is, between the junction of the bath hot water supply flow passage and the bath reheating circulation flow passage and the bathtub, two water passages are formed by the bath reheating circulation flow passage, one of which is for heating. Although it passes through the heat exchange part with the circulation flow path and the other does not pass through the heat exchange part, since the cross-sectional area of the bath reheating circulation flow path is smaller than the cross-sectional area of the bath hot water supply flow path, It was devised to supply hot water or water quickly by using both water passages at the same time.
【0004】[0004]
【発明が解決しようとする課題】しかし、上記従来の給
湯装置では、暖房運転中に浴槽への給湯あるいは給水を
行う場合、風呂給湯用通水流路から風呂追い焚き用循環
流路に流入した湯水が、風呂追い焚き用循環流路の暖房
用循環流路との熱交換部分を通る間に温度上昇し、浴槽
に供給される湯水の温度が所望温度よりも高くなってし
まうという課題があった。However, in the above-described conventional hot water supply apparatus, when hot water or hot water is supplied to the bathtub during the heating operation, the hot and cold water flowing from the bath hot water supply flow passage to the bath reheating circulation flow passage. However, there is a problem that the temperature rises while passing through the heat exchange portion of the bath reheating circulation passage with the heating circulation passage, and the temperature of the hot water supplied to the bath becomes higher than the desired temperature. .
【0005】すなわち、浴槽に湯水を供給する場合とし
ては、たとえば空の浴槽に温水を供給するいわゆる風呂
自動給湯の場合と、たとえば入浴中に浴槽の湯量を増加
させるいわゆる足し湯の場合と、たとえば浴槽の湯が熱
すぎるときに水を供給するいわゆる給水の場合とがある
が、風呂自動給湯および足し湯の場合、風呂給湯用通水
流路を通って供給される温水は、既に設定温度となるよ
うに加温されているので、それがさらに風呂追い焚き用
循環流路の熱交換部分で加温されると、設定温度よりも
高温の温水が供給される結果となり、不都合であった。
また、給水の場合も、浴槽の湯温を低下させるために給
水を行うのであるから、温水が供給されたのでは、浴槽
の湯温を低下させることができないか、あるいはできた
としても不必要に多量の温水を必要とし、浴槽の湯が溢
れたりして、いずれにしても不都合であった。That is, the case of supplying hot and cold water to the bathtub includes, for example, so-called automatic bath hot water supply in which hot water is supplied to an empty bathtub, and so-called footbath for increasing the amount of hot water in the bathtub, for example. There is a case of so-called water supply that supplies water when the hot water in the bathtub is too hot. However, in the case of automatic bath hot water supply and supplemental hot water, the hot water supplied through the bath hot water flow passage is already at the set temperature. Since it is heated in this way, if it is further heated in the heat exchange part of the bath reheating circulation channel, hot water having a temperature higher than the set temperature will be supplied, which is inconvenient.
Also, in the case of water supply, water is supplied in order to lower the hot water temperature in the bathtub. Therefore, if hot water is supplied, the hot water temperature in the bathtub cannot be lowered, or even if it is possible, it is unnecessary. It required a large amount of hot water, and the hot water in the bathtub overflowed, which was inconvenient in any case.
【0006】本願発明は上記の点に鑑みて提案されたも
のであって、温水循環流路と熱交換を行う風呂追い焚き
用循環流路を介しての浴槽への給湯あるいは給水の温度
を上昇させることのない燃焼装置を提供することを、そ
の目的としている。The invention of the present application has been proposed in view of the above point, and increases the temperature of hot water supplied to a bathtub or the temperature of water supply through a bath-fired circulation channel that exchanges heat with a hot-water circulation channel. It is an object of the present invention to provide a combustion device that does not burn.
【0007】[0007]
【課題を解決するための手段】上記の課題を解決するた
め、本願発明では、次の技術的手段を講じている。In order to solve the above problems, the present invention takes the following technical means.
【0008】すなわち、本願の請求項1に記載した発明
は、温水を循環させる温水循環流路と、浴槽の湯水を取
り出して浴槽に戻す風呂追い焚き用循環流路と、温水循
環流路と風呂追い焚き用循環流路との間で熱交換を行う
ことにより風呂の追い焚きを行う熱交換器とを有し、風
呂追い焚き用循環流路を介して浴槽への給湯あるいは給
水を行う燃焼装置であって、温水循環流路を温水が循環
しているときに浴槽への給湯あるいは給水を行うに際し
て、温水循環流路の温水の循環を停止させる温水循環流
路通水停止手段を設けたことを特徴としている。That is, the invention described in claim 1 of the present application is a hot water circulation flow path for circulating hot water, a bath reheating circulation flow path for taking out hot water from the bath and returning it to the bath, a hot water circulation flow path and a bath. A combustion device that has a heat exchanger that reheats the bath by exchanging heat with the reheating recirculation channel, and that supplies hot water or water to the bathtub via the bath reheating circulation channel In addition, when hot water is circulated in the hot water circulation flow passage, when hot water is supplied to or supplied to the bathtub, a hot water circulation flow passage water stop means is provided for stopping the circulation of the hot water in the hot water circulation flow passage. Is characterized by.
【0009】この燃焼装置によれば、たとえば、温水循
環流路を暖房に使用している場合、暖房運転中に浴槽へ
の給湯あるいは給水を行うに際して、温水循環流路通水
停止手段により、温水循環流路の通水を停止させるの
で、温水循環流路との間の熱交換による風呂追い焚き用
循環流路の湯水の温度上昇がなく、適温の湯水が浴槽に
供給される。もちろん、温水循環流路は暖房用に限ら
ず、他のいかなる用途であってもよい。According to this combustion apparatus, for example, when the hot water circulation passage is used for heating, when hot water is supplied to the bathtub or water is supplied during the heating operation, the hot water circulation passage water supply stopping means is used to heat the hot water. Since the water flow in the circulation channel is stopped, there is no rise in the temperature of the hot water in the bath reheating circulation channel due to heat exchange with the hot water circulation channel, and hot water at an appropriate temperature is supplied to the bathtub. Of course, the hot water circulation channel is not limited to heating, but may be any other application.
【0010】温水循環流路通水停止手段の具体例として
は、たとえば温水循環流路に設置された熱動弁などを閉
弁させるようにしてもよいし、あるいは、温水循環流路
に設置された循環ポンプを停止させるようにしてもよ
い。As a specific example of the hot water circulation passage water stop means, for example, a thermal valve installed in the hot water circulation passage may be closed, or installed in the hot water circulation passage. The circulating pump may be stopped.
【0011】また、本願の請求項2に記載した発明は、
給湯機能、暖房機能、および風呂追い焚き機能を有し、
風呂追い焚き時には、暖房用循環流路と風呂追い焚き用
循環流路との間で熱交換を行うことにより風呂追い焚き
用循環流路の湯水を温度上昇させ、浴槽への給湯あるい
は給水時には、風呂給湯用通水流路と風呂追い焚き用循
環流路とを介して給湯あるいは給水を行う燃焼装置であ
って、暖房用循環流路の湯水を加熱する暖房用加熱装置
と、暖房用循環流路の湯水を循環させる暖房用循環ポン
プと、暖房用循環流路の風呂追い焚き用循環流路との熱
交換部分をバイパスする暖房用バイパス流路と、暖房用
循環流路の暖房用バイパス流路によりバイパスされてい
る部分を開閉する暖房用熱動弁と、暖房運転中に浴槽へ
の給湯あるいは給水を行うに際して、先ず暖房用加熱装
置と暖房用循環ポンプとを停止させると共に暖房用熱動
弁の閉弁動作を開始させ、暖房用熱動弁の閉弁動作が完
了した頃に、暖房用加熱装置と暖房用循環ポンプとを作
動させることにより暖房用バイパス流路を介して暖房用
湯水を循環させる暖房制御手段とを設けたことを特徴と
している。The invention described in claim 2 of the present application is
It has a hot water supply function, a heating function, and a bath reheating function,
During bath reheating, the temperature of the hot water in the bath reheating circulation channel is raised by exchanging heat between the heating circulation channel and the bath reheating circulation channel, and when hot or cold water is supplied to the bathtub, A combustion device for supplying hot water or water through a hot water supply passage for bath hot water and a circulation passage for bath reheating, which is a heating device for heating hot water in the circulation passage for heating, and a circulation passage for heating. Heating circulation channel that circulates the hot water and the heating circulation channel that bypasses the heat exchange part of the heating circulation channel with the bath reheating circulation channel, and the heating circulation channel. A heating valve for opening and closing a part bypassed by a heating valve, and when hot water or water is supplied to a bathtub during heating operation, first, the heating device for heating and the circulation pump for heating are stopped and the heating valve for heating is set. Open the valve closing operation of Then, when the closing operation of the heating thermal valve is completed, the heating control device that circulates the hot water for heating through the heating bypass passage by operating the heating device for heating and the circulation pump for heating. It is characterized by the provision of.
【0012】この燃焼装置によれば、暖房運転中に浴槽
への給湯あるいは給水を行うに際して、暖房制御手段に
より、先ず暖房用加熱装置と暖房用循環ポンプとを停止
させると共に暖房用熱動弁の閉弁動作を開始させる。す
なわち、暖房用熱動弁は、内蔵されているヒータに通電
することによってその熱により開弁する熱動弁により構
成されているので、閉弁にたとえば5分間程度の時間を
要することから、暖房用熱動弁の閉弁動作が完了する頃
までの間、暖房用加熱装置と暖房用循環ポンプとを停止
させることにより、暖房用循環流路との間の熱交換によ
る風呂追い焚き用循環流路の湯水の温度上昇を避けるの
である。このように開閉動作の遅い熱動弁を用いる理由
は、通常の電磁開閉弁と比較して、耐久性に優れ、異物
の噛み込みに強く、しかも徐々に開閉するので水流に悪
影響を与えないという利点があるためである。そして、
暖房用熱動弁の閉弁動作が完了した頃に、暖房制御手段
により、暖房用加熱装置と暖房用循環ポンプとを作動さ
せることにより暖房用バイパス流路を介して暖房用湯水
を循環させるので、浴槽への湯水の供給中にも暖房運転
を行うことができ、しかも暖房用循環流路との間の熱交
換による風呂追い焚き用循環流路の湯水の温度上昇がな
く、適温の湯水が浴槽に供給される。もちろん、暖房用
熱動弁の閉弁動作が完全に完了した後に、暖房制御手段
により、暖房用加熱装置と暖房用循環ポンプとを作動さ
せるのが、暖房用循環流路との間の熱交換を避けるとい
う観点からは好ましいのであるが、このようにすると、
暖房運転の中断時間が長くなるので、暖房用熱動弁の閉
弁動作が完全に完了する前に、暖房制御手段により、暖
房用加熱装置と暖房用循環ポンプとを作動させてもよ
い。このようにしても、浴槽への給湯あるいは給水の温
度に実質的に影響を及ぼさなければよいのであって、暖
房用熱動弁の閉弁動作が完全に完了するタイミングと暖
房制御手段により暖房用加熱装置と暖房用循環ポンプと
を作動させるタイミングとの厳密な関係は、各種設計条
件に応じて適宜決定すればよい。According to this combustion apparatus, when hot water or hot water is supplied to the bathtub during the heating operation, the heating control means first stops the heating device for heating and the circulation pump for heating, and at the same time, operates the heat valve for heating. Start the valve closing operation. That is, since the heating thermal valve is constituted by a thermal valve that is opened by the heat when the built-in heater is energized, it takes about 5 minutes to close the heating valve. By the time the valve closing operation of the heating valve is completed, the heating device for heating and the circulation pump for heating are stopped so that the circulation flow for bath reheating by heat exchange with the circulation channel for heating is stopped. It avoids the temperature rise of hot and cold water in the road. The reason for using a thermal valve that opens and closes slowly in this way is that it has superior durability, is more resistant to the trapping of foreign matter, and gradually opens and closes compared to a normal electromagnetic opening and closing valve, so it does not adversely affect the water flow. This is because there are advantages. And
When the closing operation of the heating thermal valve is completed, the heating control means operates the heating heating device and the heating circulation pump to circulate the heating hot water through the heating bypass passage. The heating operation can be performed even while the hot water is being supplied to the bathtub, and there is no rise in the temperature of the hot water in the bath reheating circulation flow path due to heat exchange with the heating circulation flow path. Supplied to the bathtub. Of course, the heating control means operates the heating device for heating and the circulation pump for heating after the valve closing operation of the heating valve for heating is completely completed. It is preferable from the viewpoint of avoiding
Since the interruption time of the heating operation becomes long, the heating control device may operate the heating device for heating and the circulation pump for heating before the valve closing operation of the heating valve for heating is completely completed. Even in this case, the temperature of the hot water supplied to the bathtub or the temperature of the supplied water should not be substantially affected. The timing for completely closing the valve for the heating thermal valve and the heating control means should be used for heating. The strict relationship between the timing of operating the heating device and the heating circulation pump may be appropriately determined according to various design conditions.
【0013】暖房用加熱装置としては、たとえばガスバ
ーナや石油バーナなどを用いることができる。また、暖
房制御手段は、たとえば燃焼装置全体を制御するマイク
ロコンピュータなどにより実現できる。また、暖房用熱
動弁の閉弁動作が完了したことの検出は、たとえば暖房
用熱動弁の閉弁動作の開始と同時にタイマーを起動さ
せ、そのタイマーがタイムアップしたときに暖房用熱動
弁の閉弁動作が完了したものとみなすようにすればよ
い。暖房用熱動弁の閉弁動作に要する時間は、雰囲気温
度などにより多少の変動はあるにしても、その最長時間
は予め実験などにより知ることができるので、タイマー
の計時時間をそれに応じて設定すればよいのである。こ
の暖房用熱動弁は、暖房用循環流路の暖房用バイパス流
路によりバイパスされている部分、すなわち、暖房用循
環流路に対する暖房用バイパス流路の2つの合流点の間
の位置で、暖房用循環流路に設置される。As the heating device for heating, for example, a gas burner or a petroleum burner can be used. Further, the heating control means can be realized by, for example, a microcomputer that controls the entire combustion device. Further, detection of completion of the valve closing operation of the heating thermal valve is performed, for example, by starting a timer at the same time when the valve closing operation of the heating thermal valve is started, and when the timer expires, the heating thermal valve is activated. It may be considered that the valve closing operation has been completed. The time required for the valve closing operation of the heating valve for heating may change a little depending on the ambient temperature, etc., but the maximum time can be known in advance by experiments, etc., so the time measured by the timer should be set accordingly. All you have to do is do it. This heating thermal valve is a portion of the heating circulation passage bypassed by the heating bypass passage, that is, a position between two confluence points of the heating bypass passage with respect to the heating circulation passage, It is installed in the circulation channel for heating.
【0014】また、本願の請求項3に記載した発明は、
給湯機能、低温暖房機能、高温暖房機能、および風呂追
い焚き機能を有し、風呂追い焚き時には、低温暖房用循
環流路と風呂追い焚き用循環流路との間で熱交換を行う
ことにより風呂追い焚き用循環流路の湯水を温度上昇さ
せ、浴槽への給湯あるいは給水時には、風呂給湯用通水
流路と風呂追い焚き用循環流路とを介して給湯あるいは
給水を行う燃焼装置であって、低温暖房用循環流路と高
温暖房用循環流路との共通部分に介装されて暖房用の湯
水を貯留する暖房用温水タンクと、低温暖房運転時およ
び高温暖房運転時ならびに風呂追い焚き時に、暖房用温
水タンクから流出して低温暖房用循環流路と高温暖房用
循環流路との共通部分を流れる湯水を加熱する暖房用加
熱装置と、低温暖房用循環流路と高温暖房用循環流路と
の共通部分に介装されて、暖房運転時および風呂追い焚
き時に低温暖房用循環流路の湯水を循環させ、かつ高温
暖房運転時に高温暖房用循環流路の湯水を循環させる暖
房用循環ポンプと、低温暖房用循環流路と風呂追い焚き
用循環流路との間で熱交換を行う風呂追い焚き用熱交換
装置と、低温暖房用循環流路の風呂追い焚き用熱交換装
置部分をバイパスする低温暖房用バイパス流路と、低温
暖房用循環流路の低温暖房用バイパス流路によりバイパ
スされている部分を開閉する暖房用熱動弁と、追い焚き
時に風呂追い焚き用循環流路の湯水を循環させる風呂追
い焚き用循環ポンプと、低温暖房運転中に浴槽への給湯
あるいは給水を行うに際して、先ず暖房用加熱装置と暖
房用循環ポンプとを停止させると共に暖房用熱動弁の閉
弁動作を開始させ、暖房用熱動弁の閉弁動作が完了した
頃に、暖房用加熱装置と暖房用循環ポンプとを作動させ
ることにより低温暖房用バイパス流路を介して低温暖房
用湯水を循環させる暖房制御手段とを設けたことを特徴
としている。The invention described in claim 3 of the present application is
It has a hot water supply function, a low temperature heating function, a high temperature heating function, and a bath reheating function.When the bath is reheated, heat is exchanged between the low temperature heating circulation channel and the bath reheating channel. A combustion device that raises the temperature of hot water in the reheating circulation passage, and when hot water or water is supplied to the bathtub, hot water or water is supplied through the bath hot water passage and the bath reheating circulation passage. A heating hot water tank that stores hot water for heating, which is interposed in a common portion of the low-temperature heating circulation passage and the high-temperature heating circulation passage, and during low-temperature heating operation, high-temperature heating operation, and bath reheating, A heating device for heating hot water flowing out from the hot water tank for heating and flowing through the common portion of the low temperature heating circulation channel and the high temperature heating circulation channel, the low temperature heating circulation channel and the high temperature heating circulation channel Interposed in the common part with The circulation pump for heating, which circulates the hot and cold water in the circulation channel for low-temperature heating during the heating operation and the reheating of the bath, and the circulation flow for the low-temperature heating during the high-temperature heating operation. Heat exchange device for bath reheating that exchanges heat between the channel and the circulation flow passage for bath reheating, and a bypass flow passage for low temperature heating that bypasses the heat exchange device for bath reheating for the low temperature heating circulation flow passage And a thermal valve for heating that opens and closes the part of the low-temperature heating circulation passage that is bypassed by the low-temperature heating bypass passage, and a bath reheating that circulates the hot water in the bath reheating circulation passage during reheating. When hot water or hot water is supplied to the circulating pump and the bathtub during the low temperature heating operation, first, the heating device for heating and the circulating pump for heating are stopped and the valve closing operation of the heating valve for heating is started, and the heating heat for heating is started. Valve operated When the valve operation is completed, heating control means for circulating the hot water for low temperature heating via the bypass channel for low temperature heating by operating the heating device for heating and the circulation pump for heating is provided. There is.
【0015】この燃焼装置によれば、低温暖房運転中に
浴槽への給湯あるいは給水を行うに際して、暖房制御手
段により、先ず暖房用加熱装置と暖房用循環ポンプとを
停止させると共に暖房用熱動弁の閉弁動作を開始させ
る。すなわち、暖房用熱動弁は、内蔵されているヒータ
に通電することによりその熱によって開弁する熱動弁に
より構成されているので、閉弁にたとえば5分間程度の
時間を要することから、暖房用熱動弁の閉弁動作が完了
するまでの間、暖房用加熱装置と暖房用循環ポンプとを
停止させることにより、風呂追い焚き用熱交換装置にお
ける熱交換による風呂追い焚き用循環流路の湯水の温度
上昇を避けるのである。そして、暖房用熱動弁の閉弁動
作が完了した頃に、暖房制御手段により、暖房用加熱装
置と暖房用循環ポンプとを作動させることにより低温暖
房用バイパス流路を介して低温暖房用湯水を循環させる
ので、浴槽への湯水の供給中にも低温暖房運転を行うこ
とができ、しかも風呂追い焚き用熱交換装置における熱
交換による風呂追い焚き用循環流路の湯水の温度上昇が
なく、適温の湯水が浴槽に供給される。なお、高温暖房
用循環流路は、風呂追い焚き用熱交換装置を通らないの
で、高温暖房運転中は上記のような制御は不要である。
ただし、低温暖房運転と高温暖房運転とを同時に行う場
合には、上記のような制御が必要になる。According to this combustion device, when hot water or hot water is supplied to the bathtub during the low-temperature heating operation, the heating control means first stops the heating device for heating and the circulation pump for heating, and the thermal valve for heating. To close the valve. That is, since the heating thermal valve is constituted by a thermal valve that is opened by the heat when the built-in heater is energized, it takes about 5 minutes to close the heating valve. The heating heating device and the heating circulation pump are stopped until the valve closing operation of the heating valve is completed, so that the bath heating circulation flow path of the bath heating heat exchange device can be changed. Avoid rising the temperature of hot and cold water. Then, when the closing operation of the heating thermal valve is completed, the heating control means actuates the heating heating device and the heating circulation pump to pass the low-temperature heating hot and cold water through the low-temperature heating bypass passage. Since it circulates, it is possible to perform low-temperature heating operation even while supplying hot water to the bathtub, and there is no rise in temperature of hot water in the bath reheating circulation channel due to heat exchange in the bath reheating heat exchange device, Hot water of appropriate temperature is supplied to the bathtub. Since the circulation channel for high temperature heating does not pass through the heat exchanger for reheating the bath, the above control is not required during the high temperature heating operation.
However, when the low temperature heating operation and the high temperature heating operation are performed at the same time, the above control is required.
【0016】[0016]
【発明の実施の形態】以下、本願発明の好ましい実施形
態を、図面を参照しつつ具体的に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be specifically described below with reference to the drawings.
【0017】図1は、本願発明に係る燃焼装置の一例と
してのガス燃焼式給湯装置の全体構成図であって、この
ガス燃焼式給湯装置は、給湯、暖房、および風呂追い焚
きの各機能を有している。このガス燃焼式給湯装置は、
給湯用燃焼器1と、暖房用燃焼器2とを備えており、給
湯用燃焼器1の給湯用燃焼室3を形成する給湯用缶体4
の内部には、給湯用バーナ5と、給湯用熱交換器6とが
設置されている。給湯用バーナ5は、給湯用熱交換器6
の下方に位置しており、給湯用ガス管7を介して都市ガ
スやプロパンガスなどの燃料ガスが供給される。給湯用
ガス管7には、給湯用バーナ5への燃料ガスの供給量を
可変させる給湯用比例弁8が設置されている。給湯用熱
交換器6には、給湯用入水管9と給湯用出湯管10とが
接続されており、給湯用入水管9を介して給湯用熱交換
器6に供給された水道水などの水は、給湯用熱交換器6
を通過する間に給湯用燃焼室3の火炎により加熱され、
給湯用出湯管10を介して台所や浴槽11などの所定の
給湯箇所に給湯される。給湯用入水管9には、給湯用熱
交換器6への入水量を検出する水量センサなどからなる
給湯用入水量検出器12と、給湯用熱交換器6への入水
温度を検出する温度サーミスタなどからなる給湯用入水
温度検出器13とが設置されており、給湯用出湯管10
には、給湯用熱交換器6からの出湯温度を検出する温度
サーミスタなどからなる給湯用出湯温度検出器14が設
置されている。FIG. 1 is an overall configuration diagram of a gas combustion type hot water supply apparatus as an example of the combustion apparatus according to the present invention. The gas combustion type hot water supply apparatus has hot water supply, heating, and bath reheating functions. Have This gas combustion type hot water supply device
A hot water supply can body 4 that includes a hot water supply combustor 1 and a heating combustor 2 and forms a hot water supply combustion chamber 3 of the hot water supply combustor 1.
A hot water supply burner 5 and a hot water supply heat exchanger 6 are installed in the interior of the. The hot water supply burner 5 is a hot water supply heat exchanger 6
The fuel gas such as city gas or propane gas is supplied through the hot water supply gas pipe 7 to the fuel gas. The hot water supply gas pipe 7 is provided with a hot water supply proportional valve 8 for varying the amount of fuel gas supplied to the hot water supply burner 5. A hot water supply water inlet pipe 9 and a hot water supply tap pipe 10 are connected to the hot water supply heat exchanger 6, and water such as tap water supplied to the hot water supply heat exchanger 6 through the hot water supply water inlet pipe 9. Is a heat exchanger 6 for hot water supply
Is heated by the flame of the hot water supply combustion chamber 3 while passing through
Hot water is supplied to a predetermined hot water supply location such as a kitchen or a bathtub 11 via a hot water supply tap 10. The hot-water supply pipe 9 includes a hot-water supply water amount detector 12 including a water amount sensor for detecting the amount of water input to the hot-water supply heat exchanger 6, and a temperature thermistor for detecting the temperature of water input to the hot-water supply heat exchanger 6. The hot water supply temperature detector 13 for hot water supply is installed, and the hot water supply pipe 10 is provided.
A hot-water supply hot water outlet temperature detector 14 including a temperature thermistor for detecting the hot-water hot water supply temperature from the hot-water supply heat exchanger 6 is installed therein.
【0018】給湯用缶体4の下端部には、給湯用燃焼室
3に燃焼用空気を送風するためのシロッコファンなどか
らなる給湯用送風ファン15が設置されており、この給
湯用送風ファン15は給湯用ファンモータ16により回
転駆動される。At the lower end of the hot water supply can 4, a hot water supply fan 15 such as a sirocco fan for sending combustion air to the hot water supply combustion chamber 3 is installed. Is rotated by a hot water supply fan motor 16.
【0019】暖房用燃焼器2の暖房用燃焼室21を形成
する暖房用缶体22の内部には、暖房用バーナ23と、
暖房用熱交換器24とが設置されている。暖房用バーナ
23は、暖房用熱交換器24の下方に位置しており、暖
房用ガス管25を介して都市ガスやプロパンガスなどの
燃料ガスが供給される。この暖房用バーナ23は、給湯
用バーナ5と比べて燃焼能力が小さい。暖房用ガス管2
5には、暖房用バーナ23への燃料ガスの供給量を可変
させる暖房用比例弁26が設置されている。暖房用熱交
換器24は、暖房用循環流路27に介装されており、こ
の暖房用循環流路27には、さらに暖房用温水タンク2
8が介装されている。この暖房用循環流路27は、暖房
用温水タンク28から暖房用熱交換器24に至る暖房用
入水管29と、暖房用熱交換器24から暖房用温水タン
ク28に至る暖房用出湯管30とにより構成されてお
り、暖房用入水管29には、暖房用温水タンク28内の
湯水を暖房用循環流路27などを介して循環させる暖房
用循環ポンプ31が設置されており、暖房用出湯管30
には、風呂追い焚き用熱交換器32が設置されている。
暖房用入水管29には、暖房用循環ポンプ31と暖房用
熱交換器24との間の位置に低温用暖房配管33の一端
が接続されており、暖房用出湯管30には、暖房用熱交
換器24と風呂追い焚き用熱交換器32との間の位置に
高温用暖房配管34の一端が接続されていると共に、風
呂追い焚き用熱交換器32と暖房用温水タンク28との
間の位置に暖房戻り管35の一端が接続されている。低
温用暖房配管33は、図外のパネルヒータやファンヒー
タなどの暖房装置本体を介して他端が暖房戻り管35に
接続されており、高温用暖房配管34は、図外の床下放
熱パイプなどの暖房装置本体を介して他端が暖房戻り管
35に接続されている。Inside the heating can body 22 forming the heating combustion chamber 21 of the heating combustor 2, a heating burner 23 and a heating burner 23 are provided.
A heat exchanger 24 for heating is installed. The heating burner 23 is located below the heating heat exchanger 24, and is supplied with fuel gas such as city gas or propane gas via the heating gas pipe 25. The heating burner 23 has a smaller combustion capacity than the hot water supply burner 5. Gas pipe for heating 2
5, a heating proportional valve 26 that changes the amount of fuel gas supplied to the heating burner 23 is installed. The heating heat exchanger 24 is interposed in the heating circulation flow passage 27, and the heating circulation flow passage 27 further includes the heating hot water tank 2.
8 is interposed. The heating circulation channel 27 includes a heating water inlet pipe 29 extending from the heating hot water tank 28 to the heating heat exchanger 24, and a heating hot water outlet pipe 30 extending from the heating heat exchanger 24 to the heating hot water tank 28. The heating water inlet pipe 29 is provided with a heating circulation pump 31 that circulates the hot water in the heating hot water tank 28 through the heating circulation flow path 27 and the like. Thirty
A heat exchanger 32 for reheating the bath is installed in the room.
One end of the low-temperature heating pipe 33 is connected to the heating water inlet pipe 29 at a position between the heating circulation pump 31 and the heating heat exchanger 24, and the heating hot water outlet pipe 30 is connected to the heating hot water pipe 30. One end of the high temperature heating pipe 34 is connected to a position between the exchanger 24 and the bath reheating heat exchanger 32, and the high temperature heating pipe 34 is connected between the bath reheating heat exchanger 32 and the heating hot water tank 28. One end of the heating return pipe 35 is connected to the position. The other end of the low-temperature heating pipe 33 is connected to the heating return pipe 35 via a heating device body such as a panel heater or a fan heater (not shown), and the high-temperature heating pipe 34 includes an underfloor heat radiation pipe (not shown). The other end is connected to the heating return pipe 35 via the heating device main body.
【0020】暖房用入水管29には、暖房用熱交換器2
4への入水量を検出する水量センサなどからなる暖房用
入水量検出器36が設置されている。暖房用出湯管30
には、暖房用熱交換器24と高温用暖房配管34の接続
点との間の位置に、暖房用熱交換器24からの出湯温度
を検出する温度サーミスタなどからなる暖房用出湯温度
検出器37が設置されており、風呂追い焚き用熱交換器
32と暖房戻り管35の接続点との間の位置に、暖房用
循環流路27を開閉する暖房用熱動弁38が設置されて
おり、暖房戻り管35の接続点と暖房用温水タンク28
との間の位置に、暖房用熱交換器20への入水温度を検
出する温度サーミスタなどからなる暖房用入水温度検出
器39が設置されている。The heating heat exchanger 2 is connected to the heating water inlet pipe 29.
A water input detector 36 for heating, which is composed of a water amount sensor for detecting the amount of water input to the unit 4, is installed. Hot water outlet pipe 30
At the position between the heating heat exchanger 24 and the connection point of the high temperature heating pipe 34, a heating hot water outlet temperature detector 37 including a temperature thermistor for detecting the hot water outlet temperature from the heating heat exchanger 24 is provided. Is installed, and a heating thermal valve 38 for opening and closing the heating circulation flow path 27 is installed at a position between the bath reheating heat exchanger 32 and the connection point of the heating return pipe 35. Connection point of heating return pipe 35 and hot water tank 28 for heating
A water inlet temperature detector 39 for heating including a temperature thermistor for detecting the water inlet temperature to the heat exchanger 20 for heating is installed at a position between and.
【0021】風呂追い焚き用熱交換器32は、風呂追い
焚き用循環流路41に介装されており、この風呂追い焚
き用循環流路41は、浴槽11から風呂追い焚き用熱交
換器32に至る風呂戻り管42と、風呂追い焚き用熱交
換器32から浴槽11に至る風呂往き管43とにより構
成されている。風呂戻り管42には、浴槽11の湯水を
風呂追い焚き用循環流路41を介して循環させる風呂用
循環ポンプ44が設置されており、風呂用循環ポンプ4
4と風呂追い焚き用熱交換器32との間の位置に、風呂
給湯用通水流路45を構成する風呂給湯管46の一端が
接続されている。この風呂給湯管46の他端は、給湯用
出湯管10に接続されている。The bath reheating heat exchanger 32 is interposed in a bath reheating circulation passage 41, and the bath reheating circulation passage 41 extends from the bathtub 11 to the bath reheating heat exchanger 32. And a bath return pipe 43 extending from the bath reheating heat exchanger 32 to the bathtub 11. The bath return pipe 42 is provided with a bath circulation pump 44 that circulates the hot and cold water of the bathtub 11 through the bath reheating circulation channel 41.
One end of a bath hot water supply pipe 46 that forms the bath hot water supply passage 45 is connected to a position between the bath heating water heat exchanger 32 and the bath heating heat exchanger 32. The other end of the bath hot water supply pipe 46 is connected to the hot water supply tap pipe 10.
【0022】暖房用缶体22の下端部には、暖房用燃焼
室21に燃焼用空気を送風するためのシロッコファンな
どからなる暖房用送風ファン51が設置されており、こ
の暖房用送風ファン51は暖房用ファンモータ52によ
り回転駆動される。また、暖房用ガス管25には暖房用
バーナ23へのガスの供給流路を開閉する電磁開閉弁5
3が設置されている。また、風呂給湯管46には、風呂
給湯用通水流路45を開閉する電磁開閉弁54が設置さ
れている。また、高温用暖房配管34には、暖房用バイ
パス管55の一端が接続されており、暖房用バイパス管
55の他端は、暖房用出湯管30の暖房用熱動弁38と
暖房用温水タンク28との間の位置に接続されている。
すなわち、高温用暖房配管34と暖房用バイパス管55
とにより、暖房用出湯管30の風呂追い焚き用熱交換器
32部分をバイパスする暖房用バイパス流路56が構成
されている。At the lower end of the heating can body 22, there is installed a heating air blower fan 51 such as a sirocco fan for sending combustion air to the heating combustion chamber 21, and the heating air blower fan 51 is provided. Is rotatably driven by the heating fan motor 52. The heating gas pipe 25 has an electromagnetic opening / closing valve 5 for opening / closing a gas supply passage to the heating burner 23.
3 are installed. Further, the bath hot water supply pipe 46 is provided with an electromagnetic opening / closing valve 54 for opening / closing the bath hot water supply passage 45. Further, one end of a heating bypass pipe 55 is connected to the high temperature heating pipe 34, and the other end of the heating bypass pipe 55 is connected to the heating thermal valve 38 of the heating hot water discharge pipe 30 and the heating hot water tank. It is connected to the position between 28.
That is, the high temperature heating pipe 34 and the heating bypass pipe 55.
Thus, a heating bypass flow path 56 that bypasses the bath reheating heat exchanger 32 portion of the heating hot water outlet pipe 30 is configured.
【0023】図2は、上記ガス燃焼式給湯装置の概略制
御系統図であって、上記ガス燃焼式給湯装置は、制御装
置61により全体を制御される。この制御装置61は、
マイクロコンピュータなどを備えており、たとえば浴室
などに設置されたリモートコントローラ62や各種検出
器などからの信号に基づいて、暖房用熱動弁38、電磁
開閉弁53、暖房用循環ポンプ31などの各種制御機器
を駆動する。FIG. 2 is a schematic control system diagram of the gas combustion type hot water supply apparatus. The gas combustion type hot water supply apparatus is entirely controlled by a control unit 61. This control device 61 is
A microcomputer or the like is provided, and based on signals from, for example, a remote controller 62 or various detectors installed in a bathroom or the like, various types of heating thermal valve 38, electromagnetic on-off valve 53, heating circulation pump 31, etc. Drives control equipment.
【0024】次に動作を説明する。使用者によりたとえ
ばリモートコントローラ62に対して風呂追い焚きの指
令操作がなされると、リモートコントローラ62が、風
呂追い焚き指令信号を制御装置61に出力する。これに
より制御装置61が、暖房用バーナ23を燃焼させると
共に、暖房用熱動弁38を開弁させ、暖房用循環ポンプ
31および風呂用循環ポンプ44を駆動する。これによ
り、暖房用温水タンク28の湯水が、暖房用循環流路2
7を循環し、また、浴槽11の湯水が、風呂追い焚き用
循環流路41を循環する。すなわち、暖房用循環ポンプ
31により暖房用温水タンク28から暖房用入水管29
を介して暖房用熱交換器24に供給された湯水は、暖房
用熱交換器24を通過する間に暖房用燃焼室21の火炎
により加熱され、暖房用出湯管30を介して暖房用温水
タンク28に戻る。一方、風呂用循環ポンプ44により
浴槽11から風呂戻り管42を介して風呂追い焚き用熱
交換器32に供給された湯水は、風呂追い焚き用熱交換
器32を通過する間に暖房用出湯管30内のたとえば摂
氏80度程度の温水により加温され、風呂往き管43を
介して浴槽11に戻る。この結果、浴槽11の湯水の温
度が次第に上昇する。Next, the operation will be described. When the user performs, for example, a bath reheating command operation on the remote controller 62, the remote controller 62 outputs a bath reheating command signal to the control device 61. As a result, the control device 61 burns the heating burner 23, opens the heating thermal valve 38, and drives the heating circulation pump 31 and the bath circulation pump 44. As a result, the hot and cold water in the heating hot water tank 28 is heated by the heating circulation passage 2
7, and the hot and cold water in the bathtub 11 circulates in the bath-fired circulation flow channel 41. That is, the heating circulation pump 31 is used to heat the heating hot water tank 28 to the heating water pipe 29.
The hot water supplied to the heating heat exchanger 24 via the is heated by the flame of the heating combustion chamber 21 while passing through the heating heat exchanger 24, and is heated via the heating hot water tank 30 to the heating hot water tank. Return to 28. On the other hand, the hot water supplied from the bath circulation pump 44 to the bath reheating heat exchanger 32 from the bathtub 11 through the bath return pipe 42 is heated by the bath circulation pipe 44 while passing through the bath reheating heat exchanger 32. It is heated by hot water of about 80 degrees Celsius in 30 and returns to the bathtub 11 through the bath outflow pipe 43. As a result, the temperature of the hot water in the bathtub 11 gradually rises.
【0025】使用者によりリモートコントローラ62あ
るいは制御装置61に対して高温暖房の指令操作がなさ
れると、制御装置61が、暖房用バーナ23を燃焼させ
ると共に、高温用暖房配管34に設置された図外のバル
ブを開弁させ、暖房用循環ポンプ31を駆動する。これ
により、暖房用温水タンク28の湯水が、暖房用入水管
29と暖房用出湯管30の一部と高温用暖房配管34と
暖房戻り管35と暖房用出湯管30の一部とからなる高
温暖房用循環流路を通って循環する。このとき、暖房用
熱動弁38は閉弁しているので、暖房用温水タンク28
の湯水が暖房用出湯管30の風呂追い焚き用熱交換器3
2部分を流れることはない。すなわち、暖房用循環ポン
プ31により暖房用温水タンク28から暖房用入水管2
9を介して暖房用熱交換器24に供給された湯水は、暖
房用熱交換器24を通過する間に暖房用燃焼室21の火
炎により加熱され、暖房用出湯管30の一部と高温用暖
房配管34と上記床下放熱パイプなどの暖房装置本体と
暖房戻り管35と暖房用出湯管30の一部とを介して暖
房用温水タンク28に戻る。このとき、上記床下放熱パ
イプなどの暖房装置本体を通過する間に放熱し、床下暖
房などを行う。結局、摂氏80度程度の温水が上記床下
放熱パイプを通過することにより、床下暖房が行われる
ことになる。もちろん、高温用暖房配管34に設置され
た上記バルブの他、暖房装置本体側にもバルブが設置さ
れており、これらのバルブの開閉により室温調整が正確
になされる。When the user operates the remote controller 62 or the control device 61 to instruct the high temperature heating, the control device 61 burns the heating burner 23 and installs it in the high temperature heating pipe 34. The outer valve is opened to drive the heating circulation pump 31. As a result, the hot water in the heating hot water tank 28 is heated to a high temperature by the heating inlet pipe 29, a part of the heating outlet pipe 30, the high-temperature heating pipe 34, the heating return pipe 35, and a part of the heating outlet pipe 30. It circulates through the heating circulation channel. At this time, since the heating thermal valve 38 is closed, the heating hot water tank 28 is
The hot water is the heat exchanger 3 for heating the bath of the hot water outlet pipe 30
It does not flow in two parts. That is, the circulation pump 31 for heating heats the hot water tank 28 for heating from the water inlet pipe 2 for heating.
The hot water supplied to the heating heat exchanger 24 via 9 is heated by the flame of the heating combustion chamber 21 while passing through the heating heat exchanger 24, and a part of the heating tap pipe 30 and high temperature water It returns to the heating hot water tank 28 through the heating pipe 34, the heating device main body such as the above-mentioned underfloor radiation pipe, the heating return pipe 35, and a part of the heating hot water discharge pipe 30. At this time, heat is dissipated while passing through the heating device main body such as the underfloor radiating pipe to perform underfloor heating. Eventually, hot water of about 80 degrees Celsius passes through the underfloor radiating pipe to perform underfloor heating. Of course, in addition to the above valves installed in the high temperature heating pipe 34, valves are also installed on the heating device main body side, and the room temperature can be adjusted accurately by opening and closing these valves.
【0026】使用者によりリモートコントローラ62あ
るいは制御装置61に対して低温暖房の指令操作がなさ
れると、制御装置61が、暖房用バーナ23を燃焼させ
ると共に、暖房用熱動弁38と低温用暖房配管33に設
置された図外のバルブとを開弁させ、暖房用循環ポンプ
31を駆動する。これにより、暖房用温水タンク28の
湯水が、暖房用循環流路27を循環すると同時に、暖房
用入水管29の一部と低温用暖房配管33と暖房戻り管
35と暖房用出湯管30の一部とからなる循環流路を通
って循環する。このとき、高温用暖房配管34に設置さ
れた上記バルブは閉弁しているので、暖房用温水タンク
28の湯水が高温用暖房配管34を流れることはない。
すなわち、暖房用循環ポンプ31により暖房用温水タン
ク28から暖房用入水管29に流入した湯水は、一部が
低温用暖房配管33に流入し、残部が暖房用熱交換器2
4に供給されて、暖房用熱交換器24を通過する間に暖
房用燃焼室21の火炎により加熱され、暖房用出湯管3
0を介して暖房用温水タンク28に戻る。一方、低温用
暖房配管33に流入した湯水は、上記パネルヒータやフ
ァンヒータなどの暖房装置本体と暖房戻り管35と暖房
用出湯管30の一部とを通って暖房用温水タンク28に
戻る。このとき、上記パネルヒータやファンヒータなど
の暖房装置本体を通過する間に放熱し、暖房を行う。結
局、暖房用温水タンク28の湯水が暖房用循環流路27
を循環する間に暖房用バーナ23により加熱され、その
温水が暖房装置本体を通って循環することにより、摂氏
60度程度の温水により暖房が行われることになる。も
ちろん、低温用暖房配管33に設置された上記バルブの
他、暖房装置本体側にもバルブが設置されており、これ
らのバルブの開閉により室温調整が正確になされる。When the user operates the remote controller 62 or the control device 61 to instruct the low temperature heating, the control device 61 causes the heating burner 23 to burn, and the heating thermal valve 38 and the low temperature heating. A valve (not shown) installed in the pipe 33 is opened to drive the heating circulation pump 31. As a result, the hot water in the heating hot water tank 28 circulates in the heating circulation flow path 27, and at the same time, a part of the heating water inlet pipe 29, the low temperature heating pipe 33, the heating return pipe 35, and the heating hot water outlet pipe 30. And circulates through a circulation flow path consisting of At this time, since the valve installed in the high temperature heating pipe 34 is closed, hot water in the heating hot water tank 28 does not flow through the high temperature heating pipe 34.
That is, the hot water circulating from the heating warm water tank 28 into the heating water inlet pipe 29 by the heating circulation pump 31 partially flows into the low temperature heating pipe 33, and the rest is the heating heat exchanger 2.
4 and is heated by the flame of the heating combustion chamber 21 while passing through the heating heat exchanger 24.
Return to the hot water tank 28 for heating via 0. On the other hand, the hot water flowing into the low temperature heating pipe 33 returns to the heating hot water tank 28 through the main body of the heating device such as the panel heater or the fan heater, the heating return pipe 35 and a part of the heating hot water discharge pipe 30. At this time, heat is dissipated and heat is provided while passing through the main body of the heating device such as the panel heater or the fan heater. After all, the hot water in the heating hot water tank 28 is heated by the heating circulation passage 27.
While being circulated, the heating burner 23 heats the hot water, and the hot water circulates through the heating device main body, so that heating is performed with hot water of about 60 degrees Celsius. Of course, in addition to the valves installed in the low-temperature heating pipe 33, valves are also installed on the heating device main body side, and the room temperature can be adjusted accurately by opening and closing these valves.
【0027】上記の説明のように、低温暖房運転におい
ては、暖房用温水タンク28の湯水が風呂追い焚き用熱
交換器32を通過する。したがって、低温暖房運転中に
浴槽11に湯水を供給する場合、たとえば空の浴槽11
に温水を供給するいわゆる風呂自動給湯の場合や、たと
えば入浴中に浴槽11の湯量を増加させるいわゆる足し
湯の場合や、たとえば浴槽11の湯が熱すぎるときに水
を供給するいわゆる給水の場合などには、風呂追い焚き
用熱交換器32における熱交換により浴槽11に供給さ
れる湯水が加温され、所望の温度よりも上昇してしまう
という問題が生じる。これを解決するのが本願発明の主
題であり、この動作について、以下に詳細に述べる。As described above, in the low temperature heating operation, the hot and cold water in the heating hot water tank 28 passes through the bath reheating heat exchanger 32. Therefore, when hot water is supplied to the bathtub 11 during the low temperature heating operation, for example, when the bathtub 11 is empty.
In the case of so-called automatic bath hot water supplying hot water to the bath, in the case of so-called supplemental water increasing the amount of hot water in the bathtub 11 during bathing, in the case of so-called water supply supplying water when the hot water in the bathtub 11 is too hot, etc. However, there is a problem that the hot water supplied to the bathtub 11 is heated by the heat exchange in the bath reheating heat exchanger 32 and rises above the desired temperature. It is the subject of the present invention to solve this, and this operation will be described in detail below.
【0028】先ず、低温暖房運転中における風呂自動給
湯の動作について、図3に示すフローチャートを参照し
ながら説明する。空の浴槽11に湯を入れたいような場
合、低温暖房運転中に使用者によりリモートコントロー
ラ62に対して風呂自動給湯の指令操作がなされると、
給湯用バーナ5により加熱された水道水などの温水が、
給湯用出湯管10、風呂給湯管46、風呂戻り管42お
よび風呂往き管43を通って浴槽11に供給される。こ
のとき、風呂給湯管46から風呂戻り管42に流入した
温水は、一部が風呂戻り管42を通って直接浴槽11に
給湯され、残部が風呂戻り管42の風呂追い焚き用熱交
換器32部分と風呂往き管43とを通って浴槽11に給
湯される。そして、制御装置61が、暖房用熱動弁38
への通電を遮断し(S1)、図外のタイマーを起動する
(S2)。このタイマーは、制御装置61のCPUのク
ロックパルスに基づいて得られる所定周期のパルスをカ
ウントするカウンタなどによりハードウェアで実現して
もよいし、あるいは所定のプログラムを実行することに
よりソフトウェアで実現してもよい。そして、制御装置
61が、暖房用バーナ23の燃焼を停止させ(S3)、
暖房用循環ポンプ31の運転を停止させる(S4)。First, the operation of the automatic bath hot water supply during the low temperature heating operation will be described with reference to the flow chart shown in FIG. When it is desired to add hot water to the empty bathtub 11, when the user performs a command operation of automatic bath hot water supply to the remote controller 62 during the low temperature heating operation,
Hot water such as tap water heated by the hot water supply burner 5
It is supplied to the bathtub 11 through the hot water supply tap pipe 10, the bath hot water supply pipe 46, the bath return pipe 42, and the bath outgoing pipe 43. At this time, a part of the hot water flowing from the bath hot water supply pipe 46 into the bath return pipe 42 is directly supplied to the bathtub 11 through the bath return pipe 42, and the rest is the bath reheating heat exchanger 32 of the bath return pipe 42. Hot water is supplied to the bathtub 11 through the portion and the bath outflow pipe 43. Then, the control device 61 controls the heating thermal valve 38.
The power supply to is cut off (S1), and a timer (not shown) is started (S2). This timer may be realized by hardware such as a counter that counts pulses of a predetermined cycle obtained based on a clock pulse of the CPU of the control device 61, or realized by software by executing a predetermined program. May be. Then, the control device 61 stops the combustion of the heating burner 23 (S3),
The operation of the circulation pump 31 for heating is stopped (S4).
【0029】ところで、暖房用熱動弁38の閉弁には上
述のように5分間程度の時間がかかるので、この状態で
は暖房用熱動弁38は閉弁しておらず、暖房用温水タン
ク28の温水は暖房用循環流路27を循環することが可
能である。しかし、暖房用循環ポンプ31の運転を停止
させているので、暖房用出湯管30内には温水が滞留し
た状態であり、暖房用バーナ23の燃焼も停止させてい
るので、暖房用出湯管30内の温水が温度上昇すること
はなく、浴槽11への給湯の一部が風呂追い焚き用熱交
換器32を通過することによる給湯温度の上昇はない。
より詳細に述べれば、暖房用出湯管30内に滞留した温
水により短時間の間多少の熱交換が行われるけれども、
その熱量は僅かであり、浴槽11内の温水の温度を実質
的に上昇させるものではない。By the way, since it takes about 5 minutes to close the heating thermal valve 38 as described above, the heating thermal valve 38 is not closed in this state, and the heating hot water tank The hot water 28 can circulate in the heating circulation flow path 27. However, since the circulation pump 31 for heating is stopped, hot water remains in the hot water outlet pipe 30 and the combustion of the heating burner 23 is also stopped. The temperature of the hot water therein does not rise, and there is no rise in the hot water supply temperature due to a portion of the hot water supplied to the bathtub 11 passing through the bath reheating heat exchanger 32.
More specifically, although some heat exchange is performed for a short time by the warm water that has accumulated in the heating hot water outlet pipe 30,
The amount of heat is small and does not substantially raise the temperature of the hot water in the bath 11.
【0030】そして、制御装置61が、タイマーがタイ
ムアップしたか否かを判断する(S5)。このタイマー
は、暖房用熱動弁38の閉弁に要する時間に応じて、た
とえば5分間よりも若干長い時間を計時するように設定
されており、このタイマーがタイムアップした状態で
は、暖房用熱動弁38は完全に閉弁している。タイマー
がタイムアップしていれば(S5:YES)、制御装置
61が、暖房用バーナ23を燃焼させ(S6)、暖房用
循環ポンプ31を起動させる(S7)。これにより、暖
房用温水タンク28の湯水は、暖房用循環流路27を循
環しようとする。ところが、暖房用熱動弁38が閉弁し
ているので、暖房用循環流路27を循環することができ
ず、暖房用熱交換器24を通った温水は暖房用バイパス
流路56を介して循環する。具体的には、暖房用熱交換
器24を通った温水は、暖房用出湯管30から高温用暖
房配管34に流入し、さらに暖房用バイパス管55を通
って暖房用出湯管30に流入して、暖房用温水タンク2
8に戻る。したがって、暖房用バーナ23を燃焼させ、
かつ暖房用循環ポンプ31を運転しても、風呂追い焚き
用熱交換器32における熱交換により浴槽11への給湯
温度が上昇するということはない。もちろん、暖房用温
水タンク28から暖房用入水管29の一部と低温用暖房
配管33と暖房装置本体と暖房戻り管35と暖房用出湯
管30の一部とを通って暖房用温水タンク28に戻る循
環流路にも通水されており、低温暖房運転が継続され
る。結局、タイマーが計時動作中の5分間程度の期間の
み、低温暖房運転が中断されることになる。Then, the controller 61 determines whether or not the timer has timed out (S5). This timer is set to measure a time slightly longer than, for example, 5 minutes according to the time required for closing the heating thermal valve 38, and when the timer is up, the heating heat The valve 38 is completely closed. If the timer is up (S5: YES), the controller 61 burns the heating burner 23 (S6) and activates the heating circulation pump 31 (S7). As a result, the hot water in the heating hot water tank 28 tries to circulate in the heating circulation passage 27. However, since the heating thermal valve 38 is closed, the heating circulation passage 27 cannot be circulated, and the hot water that has passed through the heating heat exchanger 24 passes through the heating bypass passage 56. Circulate. Specifically, the hot water that has passed through the heating heat exchanger 24 flows from the heating hot water discharge pipe 30 into the high temperature heating pipe 34, and further flows into the heating hot water discharge pipe 30 through the heating bypass pipe 55. , Heating hot water tank 2
Return to 8. Therefore, the heating burner 23 is burned,
Moreover, even if the heating circulation pump 31 is operated, the hot water supply temperature to the bathtub 11 does not rise due to the heat exchange in the bath reheating heat exchanger 32. Of course, from the hot water tank 28 for heating to the hot water tank 28 for heating through a part of the water inlet pipe 29 for heating, the low temperature heating pipe 33, the main body of the heating device, the heating return pipe 35, and a part of the hot water outlet pipe 30. Water is also supplied to the return circulation channel, and low-temperature heating operation is continued. After all, the low temperature heating operation is interrupted only for a period of about 5 minutes while the timer is counting.
【0031】そして、制御装置61が、浴槽11への風
呂自動給湯が完了したか否かを判断し(S8)、完了し
ていれば(S8:YES)、制御装置61が、暖房用熱
動弁38に通電し(S9)、このルーチンを終了する。
これにより、2分間程度の時間で暖房用熱動弁38が開
弁するので、暖房用温水タンク28の温水が暖房用循環
流路27を循環し、通常の低温暖房運転状態に戻る。Then, the control device 61 judges whether or not the bath automatic hot water supply to the bathtub 11 is completed (S8), and if it is completed (S8: YES), the control device 61 determines that the heating heat flow. The valve 38 is energized (S9), and this routine ends.
As a result, the heating thermal valve 38 opens in about 2 minutes, so that the hot water in the heating hot water tank 28 circulates in the heating circulation passage 27 and returns to the normal low-temperature heating operation state.
【0032】S8において、浴槽11への風呂自動給湯
が完了していなければ(S8:NO)、S8に戻って浴
槽11への風呂自動給湯が完了するのを待つ。すなわ
ち、浴槽11への風呂自動給湯が完了するまでは、暖房
用熱動弁38を開弁させない。If the bath automatic hot water supply to the bathtub 11 is not completed in S8 (S8: NO), the process returns to S8 and waits until the bath automatic hot water supply to the bathtub 11 is completed. That is, the thermal valve 38 for heating is not opened until automatic bath hot water supply to the bathtub 11 is completed.
【0033】S5において、タイマーがタイムアップし
ていなければ(S5:NO)、制御装置61が、浴槽1
1への風呂自動給湯が完了したか否かを判断し(S1
0)、完了していなければ(S10:NO)、S5に戻
ってタイマーがタイムアップするのを待つ。浴槽11へ
の風呂自動給湯が完了していれば(S10:YES)、
S6に進む。すなわち、浴槽11への風呂自動給湯が完
了していれば、タイマーのタイムアップを待つまでもな
く、通常の低温暖房運転状態に戻ればよいので、S6に
進んで通常の低温暖房運転状態に戻る処理を進める。In S5, if the timer has not timed out (S5: NO), the controller 61 causes the bathtub 1
It is judged whether the automatic bath hot water supply to the bath 1 is completed (S1
0) If not completed (S10: NO), return to S5 and wait for the timer to time up. If the automatic bath hot water supply to the bathtub 11 is completed (S10: YES),
Proceed to S6. That is, if the automatic bath hot water supply to the bathtub 11 is completed, it is sufficient to return to the normal low-temperature heating operation state without waiting for the timer to time up. Therefore, the process proceeds to S6 to return to the normal low-temperature heating operation state. Proceed with processing.
【0034】次に、低温暖房運転中における足し湯の動
作について、図4に示すフローチャートを参照しながら
説明する。入浴中に浴槽11の湯量を増加させたいよう
な場合、低温暖房運転中に使用者によりリモートコント
ローラ62に対して足し湯の指令操作がなされると、給
湯用バーナ5により加熱された水道水などの温水が、給
湯用出湯管10、風呂給湯管46、風呂戻り管42およ
び風呂往き管43を通って浴槽11に供給される。この
とき、風呂給湯管46から風呂戻り管42に流入した温
水は、一部が風呂戻り管42を通って直接浴槽11に給
湯され、残部が風呂戻り管42の風呂追い焚き用熱交換
器32部分と風呂往き管43とを通って浴槽11に給湯
される。そして、制御装置61が、暖房用熱動弁38へ
の通電を遮断し(S21)、図外のタイマーを起動する
(S22)。このタイマーは、制御装置61のCPUの
クロックパルスに基づいて得られる所定周期のパルスを
カウントするカウンタなどによりハードウェアで実現し
てもよいし、あるいは所定のプログラムを実行すること
によりソフトウェアで実現してもよい。そして、制御装
置61が、暖房用バーナ23の燃焼を停止させ(S2
3)、暖房用循環ポンプ31の運転を停止させる(S2
4)。Next, the operation of the hot water during the low temperature heating operation will be described with reference to the flow chart shown in FIG. When it is desired to increase the amount of hot water in the bathtub 11 while taking a bath, when the user operates the remote controller 62 to instruct addition of hot water during low temperature heating operation, tap water heated by the hot water supply burner 5 Hot water is supplied to the bathtub 11 through the hot water supply tap pipe 10, the bath hot water supply pipe 46, the bath return pipe 42, and the bath outgoing pipe 43. At this time, a part of the hot water flowing from the bath hot water supply pipe 46 into the bath return pipe 42 is directly supplied to the bathtub 11 through the bath return pipe 42, and the rest is the bath reheating heat exchanger 32 of the bath return pipe 42. Hot water is supplied to the bathtub 11 through the portion and the bath outflow pipe 43. Then, the control device 61 shuts off energization to the heating thermal valve 38 (S21) and activates a timer (not shown) (S22). This timer may be realized by hardware such as a counter that counts pulses of a predetermined cycle obtained based on a clock pulse of the CPU of the control device 61, or realized by software by executing a predetermined program. May be. Then, the control device 61 stops the combustion of the heating burner 23 (S2
3), stop the operation of the circulation pump 31 for heating (S2)
4).
【0035】ところで、暖房用熱動弁38の閉弁には上
述のように5分間程度の時間がかかるので、この状態で
は暖房用熱動弁38は閉弁しておらず、暖房用温水タン
ク28の温水は暖房用循環流路27を循環することが可
能である。しかし、暖房用循環ポンプ31の運転を停止
させているので、暖房用出湯管30内には温水が滞留し
た状態であり、暖房用バーナ23の燃焼も停止させてい
るので、暖房用出湯管30内の温水が温度上昇すること
はない。したがって、浴槽11への給湯の一部が風呂追
い焚き用熱交換器32を通過することによる給湯温度の
上昇はない。より詳細に述べれば、暖房用出湯管30内
に滞留した温水により短時間の間多少の熱交換が行われ
るけれども、その熱量は僅かであり、浴槽11内の温水
の温度を実質的に上昇させるものではない。By the way, since it takes about 5 minutes to close the heating thermal valve 38 as described above, the heating thermal valve 38 is not closed in this state, and the heating hot water tank The hot water 28 can circulate in the heating circulation flow path 27. However, since the circulation pump 31 for heating is stopped, hot water remains in the hot water outlet pipe 30 and the combustion of the heating burner 23 is also stopped. The temperature of the hot water inside does not rise. Therefore, there is no rise in the hot water supply temperature due to a part of the hot water supplied to the bathtub 11 passing through the bath reheating heat exchanger 32. More specifically, although some heat exchange is performed for a short time by the hot water that has accumulated in the heating hot water outlet pipe 30, the amount of heat is small and the temperature of the hot water in the bathtub 11 is substantially increased. Not a thing.
【0036】そして、制御装置61が、タイマーがタイ
ムアップしたか否かを判断する(S25)。このタイマ
ーは、暖房用熱動弁38の閉弁に要する時間に応じて、
たとえば5分間よりも若干長い時間を計時するように設
定されており、このタイマーがタイムアップした状態で
は、暖房用熱動弁38は完全に閉弁している。タイマー
がタイムアップしていれば(S25:YES)、制御装
置61が、暖房用バーナ23を燃焼させ(S26)、暖
房用循環ポンプ31を起動させる(S27)。これによ
り、暖房用温水タンク28の湯水は、暖房用循環流路2
7を循環しようとする。ところが、暖房用熱動弁38が
閉弁しているので、暖房用循環流路27を循環すること
ができず、暖房用熱交換器24を通った温水は暖房用バ
イパス流路56を介して循環する。具体的には、暖房用
熱交換器24を通った温水は、暖房用出湯管30から高
温用暖房配管34に流入し、さらに暖房用バイパス管5
5を通って暖房用出湯管30に流入して、暖房用温水タ
ンク28に戻る。したがって、暖房用バーナ23を燃焼
させ、かつ暖房用循環ポンプ31を運転しても、風呂追
い焚き用熱交換器32における熱交換により浴槽11へ
の給湯温度が上昇するということはない。もちろん、暖
房用温水タンク28から暖房用入水管29の一部と低温
用暖房配管33と暖房装置本体と暖房戻り管35と暖房
用出湯管30の一部とを通って暖房用温水タンク28に
戻る循環流路にも通水されており、低温暖房運転が継続
される。結局、タイマーが計時動作中の5分間程度の期
間のみ、低温暖房運転が中断されることになる。Then, the controller 61 determines whether or not the timer has timed out (S25). This timer is based on the time required to close the thermal valve 38 for heating.
For example, the time is set to be slightly longer than 5 minutes, and the heating thermal valve 38 is completely closed when this timer is up. If the timer is up (S25: YES), the control device 61 burns the heating burner 23 (S26) and activates the heating circulation pump 31 (S27). As a result, the hot water in the heating hot water tank 28 is heated by the heating circulation passage 2
Try to cycle 7. However, since the heating thermal valve 38 is closed, the heating circulation passage 27 cannot be circulated, and the hot water that has passed through the heating heat exchanger 24 passes through the heating bypass passage 56. Circulate. Specifically, the hot water that has passed through the heating heat exchanger 24 flows from the heating hot water outlet pipe 30 into the high temperature heating pipe 34, and is further heated by the heating bypass pipe 5.
It flows through 5 into the hot water outlet pipe 30, and returns to the hot water tank 28 for heating. Therefore, even if the heating burner 23 is burned and the heating circulation pump 31 is operated, the hot water supply temperature to the bathtub 11 does not rise due to the heat exchange in the bath heating heat exchanger 32. Of course, from the hot water tank 28 for heating to the hot water tank 28 for heating through a part of the water inlet pipe 29 for heating, the low temperature heating pipe 33, the main body of the heating device, the heating return pipe 35, and a part of the hot water outlet pipe 30. Water is also supplied to the return circulation channel, and low-temperature heating operation is continued. After all, the low temperature heating operation is interrupted only for a period of about 5 minutes while the timer is counting.
【0037】そして、制御装置61が、浴槽11への足
し湯が終了したか否かを判断し(S28)、終了してい
れば(S28:YES)、制御装置61が、暖房用熱動
弁38に通電し(S29)、このルーチンを終了する。
これにより、2分間程度の時間で暖房用熱動弁38が開
弁するので、暖房用温水タンク28の温水が暖房用循環
流路27を循環し、通常の低温暖房運転状態に戻る。Then, the control device 61 judges whether or not the addition of hot water to the bathtub 11 is completed (S28), and if it is completed (S28: YES), the control device 61 causes the heating valve for heating. 38 is energized (S29), and this routine ends.
As a result, the heating thermal valve 38 opens in about 2 minutes, so that the hot water in the heating hot water tank 28 circulates in the heating circulation passage 27 and returns to the normal low-temperature heating operation state.
【0038】S28において、浴槽11への足し湯が終
了していなければ(S28:NO)、S28に戻って浴
槽11への足し湯が終了するのを待つ。すなわち、浴槽
11への足し湯が終了するまでは、暖房用熱動弁38を
開弁させない。In S28, if the addition of water to the bathtub 11 is not completed (S28: NO), the process returns to S28 and waits until the addition of water to the bathtub 11 is completed. That is, the heating thermal valve 38 is not opened until the addition of hot water to the bathtub 11 is completed.
【0039】S25において、タイマーがタイムアップ
していなければ(S25:NO)、制御装置61が、浴
槽11への足し湯が終了したか否かを判断し(S3
0)、終了していなければ(S30:NO)、S25に
戻ってタイマーがタイムアップするのを待つ。浴槽11
への足し湯が終了していれば(S30:YES)、S2
6に進む。すなわち、浴槽11への足し湯が終了してい
れば、タイマーのタイムアップを待つまでもなく、通常
の低温暖房運転状態に戻ればよいので、S26に進んで
通常の低温暖房運転状態に戻る処理を進める。In S25, if the timer has not timed out (S25: NO), the controller 61 determines whether or not the addition of water to the bathtub 11 is completed (S3).
0) If not completed (S30: NO), return to S25 and wait for the timer to time up. Bathtub 11
If the addition bath to is completed (S30: YES), S2
Go to 6. That is, if the addition of hot water to the bathtub 11 is completed, it is sufficient to return to the normal low-temperature heating operation state without waiting for the timer to time up. Therefore, the process proceeds to S26 to return to the normal low-temperature heating operation state. Proceed.
【0040】次に、低温暖房運転中における給水の動作
について、図5に示すフローチャートを参照しながら説
明する。入浴中に浴槽11の湯温を下げたいような場
合、低温暖房運転中に使用者によりリモートコントロー
ラ62に対して給水の指令操作がなされると、水道水な
どの水が、風呂給湯管46、風呂戻り管42および風呂
往き管43を通って浴槽11に供給される。このとき、
風呂給湯管46から風呂戻り管42に流入した水は、一
部が風呂戻り管42を通って直接浴槽11に給水され、
残部が風呂戻り管42の風呂追い焚き用熱交換器32部
分と風呂往き管43とを通って浴槽11に給水される。
そして、制御装置61が、暖房用熱動弁38への通電を
遮断し(S41)、図外のタイマーを起動する(S4
2)。このタイマーは、制御装置61のCPUのクロッ
クパルスに基づいて得られる所定周期のパルスをカウン
トするカウンタなどによりハードウェアで実現してもよ
いし、あるいは所定のプログラムを実行することにより
ソフトウェアで実現してもよい。そして、制御装置61
が、暖房用バーナ23の燃焼を停止させ(S43)、暖
房用循環ポンプ31の運転を停止させる(S44)。Next, the water supply operation during the low temperature heating operation will be described with reference to the flow chart shown in FIG. When it is desired to lower the hot water temperature of the bathtub 11 while taking a bath, when the user issues a water supply command operation to the remote controller 62 during the low temperature heating operation, water such as tap water is supplied to the bath hot water supply pipe 46 and the bath. It is supplied to the bathtub 11 through the return pipe 42 and the bathing pipe 43. At this time,
Part of the water flowing from the bath hot water supply pipe 46 into the bath return pipe 42 is directly supplied to the bathtub 11 through the bath return pipe 42,
The remaining portion is supplied to the bathtub 11 through the bath reheating heat exchanger 32 portion of the bath return pipe 42 and the bath outflow pipe 43.
Then, the control device 61 cuts off energization to the heating thermal valve 38 (S41), and activates a timer (not shown) (S4).
2). This timer may be realized by hardware such as a counter that counts pulses of a predetermined cycle obtained based on a clock pulse of the CPU of the control device 61, or realized by software by executing a predetermined program. May be. Then, the control device 61
Stops the combustion of the heating burner 23 (S43) and stops the operation of the heating circulation pump 31 (S44).
【0041】ところで、暖房用熱動弁38の閉弁には上
述のように5分間程度の時間がかかるので、この状態で
は暖房用熱動弁38は閉弁しておらず、暖房用温水タン
ク28の温水は暖房用循環流路27を循環することが可
能である。しかし、暖房用循環ポンプ31の運転を停止
させているので、暖房用出湯管30内には温水が滞留し
た状態であり、暖房用バーナ23の燃焼も停止させてい
るので、暖房用出湯管30内の水が温度上昇することは
ない。したがって、浴槽11への給水の一部が風呂追い
焚き用熱交換器32を通過することによる給水温度の上
昇はない。より詳細に述べれば、暖房用出湯管30内に
滞留した温水により短時間の間多少の熱交換が行われる
けれども、その熱量は僅かであり、浴槽11内の温水の
温度低下を実質的に妨げるものではない。なお、給水の
場合、風呂往き管43を通る水の温度と暖房用出湯管3
0に滞留している温水の温度との差は、風呂自動給湯や
足し湯の場合と比較して大きいので、風呂追い焚き用熱
交換器32による熱交換の熱量も多少は大きくなるが、
それでもその絶対量は僅かであり、給水による浴槽11
内の温水の温度低下を実質的に妨げるようなことにはな
らない。By the way, since it takes about 5 minutes to close the heating thermal valve 38 as described above, the heating thermal valve 38 is not closed in this state, and the heating hot water tank The hot water 28 can circulate in the heating circulation flow path 27. However, since the circulation pump 31 for heating is stopped, hot water remains in the hot water outlet pipe 30 and the combustion of the heating burner 23 is also stopped. The temperature of the water inside does not rise. Therefore, there is no rise in the water supply temperature due to a portion of the water supply to the bathtub 11 passing through the bath reheating heat exchanger 32. More specifically, although some heat is exchanged for a short time by the hot water that has accumulated in the heating hot water outlet pipe 30, the amount of heat is small and substantially prevents the temperature of the hot water in the bathtub 11 from decreasing. Not a thing. In the case of water supply, the temperature of the water passing through the bath outflow pipe 43 and the hot water outlet pipe 3
The difference from the temperature of the hot water staying at 0 is larger than that in the case of automatic bath hot water supply or supplemental hot water, so the amount of heat exchanged by the heat exchanger 32 for bath reheating is somewhat large,
Still, the absolute amount is small, and bathtub 11
It does not substantially prevent the temperature drop of the hot water inside.
【0042】そして、制御装置61が、タイマーがタイ
ムアップしたか否かを判断する(S45)。このタイマ
ーは、暖房用熱動弁38の閉弁に要する時間に応じて、
たとえば5分間よりも若干長い時間を計時するように設
定されており、このタイマーがタイムアップした状態で
は、暖房用熱動弁38は完全に閉弁している。タイマー
がタイムアップしていれば(S45:YES)、制御装
置61が、暖房用バーナ23を燃焼させ(S46)、暖
房用循環ポンプ31を起動させる(S47)。これによ
り、暖房用温水タンク28の湯水は、暖房用循環流路2
7を循環しようとする。ところが、暖房用熱動弁38が
閉弁しているので、暖房用循環流路27を循環すること
ができず、暖房用熱交換器24を通った温水は暖房用バ
イパス流路56を介して循環する。具体的には、暖房用
熱交換器24を通った温水は、暖房用出湯管30から高
温用暖房配管34に流入し、さらに暖房用バイパス管5
5を通って暖房用出湯管30に流入して、暖房用温水タ
ンク28に戻る。したがって、暖房用バーナ23を燃焼
させ、かつ暖房用循環ポンプ31を運転しても、風呂追
い焚き用熱交換器32における熱交換により浴槽11へ
の給水温度が上昇するということはない。もちろん、暖
房用温水タンク28から暖房用入水管29の一部と低温
用暖房配管33と暖房装置本体と暖房戻り管35と暖房
用出湯管30の一部とを通って暖房用温水タンク28に
戻る循環流路にも通水されており、低温暖房運転が継続
される。結局、タイマーが計時動作中の5分間程度の期
間のみ、低温暖房運転が中断されることになる。Then, the controller 61 determines whether or not the timer has timed out (S45). This timer is based on the time required to close the thermal valve 38 for heating.
For example, the time is set to be slightly longer than 5 minutes, and the heating thermal valve 38 is completely closed when this timer is up. If the timer is up (S45: YES), the controller 61 burns the heating burner 23 (S46) and activates the heating circulation pump 31 (S47). As a result, the hot water in the heating hot water tank 28 is heated by the heating circulation passage 2
Try to cycle 7. However, since the heating thermal valve 38 is closed, the heating circulation passage 27 cannot be circulated, and the hot water that has passed through the heating heat exchanger 24 passes through the heating bypass passage 56. Circulate. Specifically, the hot water that has passed through the heating heat exchanger 24 flows from the heating hot water outlet pipe 30 into the high temperature heating pipe 34, and is further heated by the heating bypass pipe 5.
It flows through 5 into the hot water outlet pipe 30, and returns to the hot water tank 28 for heating. Therefore, even if the heating burner 23 is burnt and the heating circulation pump 31 is operated, the temperature of the water supplied to the bathtub 11 does not rise due to the heat exchange in the bath reheating heat exchanger 32. Of course, from the hot water tank 28 for heating to the hot water tank 28 for heating through a part of the water inlet pipe 29 for heating, the low temperature heating pipe 33, the main body of the heating device, the heating return pipe 35, and a part of the hot water outlet pipe 30. Water is also supplied to the return circulation channel, and low-temperature heating operation is continued. After all, the low temperature heating operation is interrupted only for a period of about 5 minutes while the timer is counting.
【0043】そして、制御装置61が、浴槽11への給
水が終了したか否かを判断し(S48)、終了していれ
ば(S48:YES)、制御装置61が、暖房用熱動弁
38に通電し(S49)、このルーチンを終了する。こ
れにより、2分間程度の時間で暖房用熱動弁38が開弁
するので、暖房用温水タンク28の温水が暖房用循環流
路27を循環し、通常の低温暖房運転状態に戻る。Then, the control device 61 judges whether or not the water supply to the bathtub 11 is completed (S48), and if it is completed (S48: YES), the control device 61 causes the heating thermal valve 38 to operate. Is energized (S49), and this routine ends. As a result, the heating thermal valve 38 opens in about 2 minutes, so that the hot water in the heating hot water tank 28 circulates in the heating circulation passage 27 and returns to the normal low-temperature heating operation state.
【0044】S48において、浴槽11への給水が終了
していなければ(S48:NO)、S48に戻って浴槽
11への給水が終了するのを待つ。すなわち、浴槽11
への給水が終了するまでは、暖房用熱動弁38を開弁さ
せない。In S48, if the water supply to the bathtub 11 is not completed (S48: NO), the process returns to S48 and waits until the water supply to the bathtub 11 is completed. That is, the bathtub 11
The heating thermal valve 38 is not opened until the water supply to the air is completed.
【0045】S45において、タイマーがタイムアップ
していなければ(S45:NO)、制御装置61が、浴
槽11への給水が終了したか否かを判断し(S50)、
終了していなければ(S50:NO)、S45に戻って
タイマーがタイムアップするのを待つ。浴槽11への給
水が終了していれば(S50:YES)、S46に進
む。すなわち、浴槽11への給水が終了していれば、タ
イマーのタイムアップを待つまでもなく、通常の低温暖
房運転状態に戻ればよいので、S46に進んで通常の低
温暖房運転状態に戻る処理を進める。In S45, if the timer has not timed out (S45: NO), the controller 61 determines whether or not the water supply to the bathtub 11 is completed (S50),
If it has not ended (S50: NO), the process returns to S45 and waits for the timer to time out. If the water supply to the bathtub 11 is completed (S50: YES), the process proceeds to S46. That is, if the water supply to the bathtub 11 is completed, it is sufficient to return to the normal low-temperature heating operation state without waiting for the time-out of the timer, so the process proceeds to S46 to return to the normal low-temperature heating operation state. Proceed.
【0046】このように、低温暖房運転中における浴槽
11への給湯あるいは給水時には、暖房用熱動弁38が
閉弁するまで、暖房用バーナ23および暖房用循環ポン
プ31の運転を停止させるので、風呂追い焚き用熱交換
器32における熱交換により浴槽11への給湯あるいは
注水温度が上昇するのを良好に防止できる。As described above, during hot water supply or water supply to the bathtub 11 during the low temperature heating operation, the operation of the heating burner 23 and the heating circulation pump 31 is stopped until the heating thermal valve 38 is closed. It is possible to favorably prevent the temperature of hot water supply or water injection to the bathtub 11 from rising due to heat exchange in the bath reheating heat exchanger 32.
【0047】また、暖房用熱動弁38が閉弁した後は、
浴槽11への給湯あるいは給水が終了するまで、暖房用
温水タンク28の温水を暖房用バイパス流路56を介し
て循環させるので、浴槽11への給湯あるいは給水温度
を上昇させることなく、低温暖房運転を継続できる。After the heating thermal valve 38 is closed,
The hot water in the heating hot water tank 28 is circulated through the heating bypass flow path 56 until the hot water supply or the water supply to the bathtub 11 is completed, so that the low temperature heating operation is performed without increasing the hot water supply or the water supply temperature to the bathtub 11. Can continue.
【0048】なお、上記実施形態では、高温暖房運転と
低温暖房運転との2種類の暖房運転を行う例について説
明したが、暖房運転の種類は、1種類であっても3種類
以上であってもよい。すなわち本願発明は、暖房運転の
種類に拘らず、少なくとも1つの暖房運転時に暖房用の
湯水が風呂追い焚き用熱交換器32を通る場合につい
て、全て適用可能である。さらには、暖房運転に限ら
ず、他の目的で使用する温水循環流路と風呂追い焚き用
循環流路との間で熱交換を行う場合も適用可能である。In the above embodiment, an example in which two types of heating operation, high temperature heating operation and low temperature heating operation, are performed has been described, but the number of types of heating operation may be one or more, but three or more. Good. That is, the invention of the present application is applicable to all cases in which hot water for heating passes through the bath reheating heat exchanger 32 during at least one heating operation, regardless of the type of heating operation. Further, the present invention is not limited to the heating operation, and can be applied to the case where heat exchange is performed between the hot water circulation flow path used for other purposes and the bath reheating circulation flow path.
【0049】また、上記実施形態では、タイマーの設定
時間を暖房用熱動弁38が完全に閉弁する時間に設定し
たが、タイマーの設定時間を暖房用熱動弁38が完全に
閉弁する時間よりも若干短く設定してもよい。このよう
にすれば、低温暖房運転の中断時間を短縮できる。要す
るに、風呂追い焚き用熱交換器32による熱交換の影響
を実質的に避けることが可能なようにタイマーの設定時
間を決定すればよいのである。Further, in the above embodiment, the timer setting time is set to the time when the heating thermal valve 38 is completely closed. However, the timer setting time is completely closed by the heating thermal valve 38. It may be set slightly shorter than the time. By doing so, the interruption time of the low temperature heating operation can be shortened. In short, the set time of the timer may be determined so that the effect of heat exchange by the bath reheating heat exchanger 32 can be substantially avoided.
【0050】また、上記実施形態では、暖房用熱動弁3
8の閉弁により暖房用循環流路27における湯水の循環
を停止させたが、暖房用熱動弁38を設けずに、単に暖
房用循環ポンプ31を停止させることにより暖房用循環
流路27における湯水の循環を停止させてもよい。但
し、熱交換を防止するなどの機能は、暖房用熱動弁38
を設けた場合よりも低下する。またこの場合には、風呂
側と暖房側との同時運転もできなくなる。In the above embodiment, the heating valve 3 for heating is used.
Although the circulation of the hot water in the heating circulation passage 27 is stopped by closing the valve 8 in FIG. 8, the heating circulation pump 31 is simply stopped without providing the heating thermal valve 38, and the heating circulation passage 27 in the heating circulation passage 27 is stopped. The circulation of hot water may be stopped. However, functions such as heat exchange prevention are performed by the heating valve 38 for heating.
Is lower than the case where is provided. Further, in this case, it is not possible to simultaneously operate the bath side and the heating side.
【0051】[0051]
【発明の効果】以上説明したように請求項1の発明によ
れば、温水循環流路を温水が循環しているときに浴槽へ
の給湯あるいは給水を行うに際して、温水循環流路の温
水の循環を停止させる温水循環流路通水停止手段を設け
たので、たとえば温水循環流路を暖房用温水の循環流路
として用いた場合、暖房運転中に浴槽への給湯あるいは
給水を行うに際して、温水循環流路通水停止手段によ
り、温水循環流路の通水を停止させることから、温水循
環流路との間の熱交換による風呂追い焚き用循環流路の
湯水の温度上昇がなく、適温の湯水が浴槽に供給され
る。As described above, according to the first aspect of the present invention, when hot water is circulated in the hot water circulation passage, hot water is circulated in the hot water circulation passage when hot water is supplied to or supplied to the bathtub. Since the hot water circulation passage for stopping the hot water circulation passage is provided, for example, when the hot water circulation passage is used as the circulation passage for the hot water for heating, the hot water circulation is performed when hot water is supplied to or supplied to the bathtub during the heating operation. Since the passage of water through the hot water circulation passage is stopped by the passage water passage stop means, there is no rise in the temperature of the hot water in the bath reheating circulation passage due to heat exchange with the hot water circulation passage, Is supplied to the bathtub.
【0052】また、請求項2の発明によれば、暖房運転
中に浴槽への給湯あるいは給水を行うに際して、先ず暖
房用加熱装置と暖房用循環ポンプとを停止させると共に
暖房用熱動弁の閉弁動作を開始させ、暖房用熱動弁の閉
弁動作が完了した頃に、暖房用加熱装置と暖房用循環ポ
ンプとを作動させることにより暖房用バイパス流路を介
して暖房用湯水を循環させる暖房制御手段とを設けたの
で、暖房用熱動弁の閉弁動作が完了した頃に、暖房制御
手段により、暖房用加熱装置と暖房用循環ポンプとを作
動させることにより暖房用バイパス流路を介して暖房用
湯水を循環させることから、浴槽への湯水の供給中にも
暖房運転を行うことができ、しかも暖房用循環流路との
間の熱交換による風呂追い焚き用循環流路の湯水の温度
上昇がなく、適温の湯水が浴槽に供給される。According to the second aspect of the present invention, when hot water or hot water is supplied to the bathtub during the heating operation, the heating device for heating and the circulation pump for heating are stopped and the thermal valve for heating is closed. When the valve operation is started and the closing valve of the heating thermal valve is completed, the heating device for heating and the circulation pump for heating are operated to circulate the hot water for heating through the bypass passage for heating. Since the heating control means is provided, the heating control means operates the heating device for heating and the circulation pump for heating to close the bypass path for heating when the closing operation of the thermal valve for heating is completed. Since the hot water for heating is circulated through the heating bath, the heating operation can be performed even while the hot water is being supplied to the bathtub, and the hot water in the bath-heating circulation flow path by heat exchange with the circulation flow path for heating. No temperature rise, suitable temperature Hot water is supplied to the bathtub.
【0053】また、請求項3の発明によれば、低温暖房
運転中に浴槽への給湯あるいは給水を行うに際して、先
ず暖房用加熱装置と暖房用循環ポンプとを停止させると
共に暖房用熱動弁の閉弁動作を開始させ、暖房用熱動弁
の閉弁動作が完了した頃に、暖房用加熱装置と暖房用循
環ポンプとを作動させることにより低温暖房用バイパス
流路を介して低温暖房用湯水を循環させる暖房制御手段
とを設けたので、暖房用熱動弁の閉弁動作が完了した頃
に、暖房制御手段により、暖房用加熱装置と暖房用循環
ポンプとを作動させることにより低温暖房用バイパス流
路を介して低温暖房用湯水を循環させることから、浴槽
への湯水の供給中にも低温暖房運転を行うことができ、
しかも風呂追い焚き用熱交換装置における熱交換による
風呂追い焚き用循環流路の湯水の温度上昇がなく、適温
の湯水が浴槽に供給される。もちろん、高温暖房用循環
流路は、風呂追い焚き用熱交換装置を通らないので、高
温暖房運転中における浴槽への給湯あるいは給水は、高
温暖房運転により何ら影響を受けない。According to the third aspect of the invention, when hot water or hot water is supplied to the bathtub during the low temperature heating operation, first, the heating device for heating and the circulation pump for heating are stopped and the thermal valve for heating is operated. When the valve closing operation is started and the valve closing operation of the heating thermal valve is completed, the heating device for heating and the circulation pump for heating are operated to allow hot water for low-temperature heating via the low-temperature heating bypass passage. Since the heating control means for circulating the heating is provided, the heating control means operates the heating device for heating and the circulation pump for heating at the time when the closing operation of the thermal valve for heating is completed, thereby performing low temperature heating. By circulating hot water for low-temperature heating through the bypass flow path, low-temperature heating operation can be performed while hot water is being supplied to the bathtub.
Moreover, there is no rise in the temperature of the hot water in the bath reheating circulation channel due to heat exchange in the bath reheating heat exchange device, and hot water having an appropriate temperature is supplied to the bathtub. Of course, since the high-temperature heating circulation passage does not pass through the bath-exchanging heat exchange device, hot water supply or water supply to the bathtub during the high-temperature heating operation is not affected by the high-temperature heating operation.
【図1】本願発明に係る燃焼装置の一例としてのガス燃
焼式給湯装置の全体構成図である。FIG. 1 is an overall configuration diagram of a gas combustion hot water supply apparatus as an example of a combustion apparatus according to the present invention.
【図2】図1に示すガス燃焼式給湯装置の概略制御系統
図である。FIG. 2 is a schematic control system diagram of the gas combustion hot water supply device shown in FIG.
【図3】図1に示すガス燃焼式給湯装置の低温暖房運転
中における風呂自動給湯動作を説明するフローチャート
である。FIG. 3 is a flowchart illustrating an automatic bath hot water supply operation during the low temperature heating operation of the gas combustion hot water supply device shown in FIG.
【図4】図1に示すガス燃焼式給湯装置の低温暖房運転
中における足し湯動作を説明するフローチャートであ
る。FIG. 4 is a flowchart for explaining an operation of adding hot water during the low temperature heating operation of the gas combustion type hot water supply apparatus shown in FIG.
【図5】図1に示すガス燃焼式給湯装置の低温暖房運転
中における給水動作を説明するフローチャートである。5 is a flowchart illustrating a water supply operation during a low temperature heating operation of the gas combustion hot water supply device shown in FIG.
11 浴槽 23 暖房用バーナ 27 暖房用循環流路 31 暖房用循環ポンプ 34 高温用暖房配管 38 暖房用熱動弁 41 風呂追い焚き用循環流路 44 風呂用循環ポンプ 45 風呂給湯用通水流路 56 暖房用バイパス流路 61 制御装置 11 bathtub 23 Heating burner 27 Circulation flow path for heating 31 Circulating pump for heating 34 High temperature heating piping 38 Thermal valve for heating 41 Circulation channel for bath reheating 44 Bath circulation pump 45 Bath hot water flow passage 56 Bypass flow path for heating 61 Control device
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平7−77336(JP,A) 特開 平6−123433(JP,A) 実開 平1−153415(JP,U) 実開 昭63−137215(JP,U) 実開 平2−128008(JP,U) (58)調査した分野(Int.Cl.7,DB名) F24D 3/08 F24H 1/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-77336 (JP, A) JP-A-6-123433 (JP, A) Actually open 1-153415 (JP, U) Actually open 63- 137215 (JP, U) Actual Kaihei 2-128008 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) F24D 3/08 F24H 1/00
Claims (3)
の湯水を取り出して浴槽に戻す風呂追い焚き用循環流路
と、前記温水循環流路と前記風呂追い焚き用循環流路と
の間で熱交換を行うことにより風呂の追い焚きを行う熱
交換器とを有し、前記風呂追い焚き用循環流路を介して
前記浴槽への給湯あるいは給水を行う燃焼装置であっ
て、 前記温水循環流路を温水が循環しているときに前記浴槽
への給湯あるいは給水を行うに際して、前記温水循環流
路の温水の循環を停止させる温水循環流路通水停止手段
を設けたことを特徴とする、燃焼装置。1. A hot water circulation flow path for circulating hot water, a bath heating circulation flow path for taking hot water from the bath and returning it to the bath, and between the hot water circulation flow path and the bath heating circulation flow path. A heat exchanger for reheating the bath by exchanging heat with a bath, and a combustor for supplying hot water or water to the bathtub through the bath reheating circulation channel, wherein the hot water circulation When hot water is supplied or water is supplied to the bathtub while hot water is circulating in the flow passage, a hot water circulation flow passage stop means for stopping circulation of the hot water in the hot water circulation passage is provided. , Combustion equipment.
き機能を有し、風呂追い焚き時には、暖房用循環流路と
風呂追い焚き用循環流路との間で熱交換を行うことによ
り風呂追い焚き用循環流路の湯水を温度上昇させ、浴槽
への給湯あるいは給水時には、風呂給湯用通水流路と前
記風呂追い焚き用循環流路とを介して給湯あるいは給水
を行う燃焼装置であって、 前記暖房用循環流路の湯水を加熱する暖房用加熱装置
と、 前記暖房用循環流路の湯水を循環させる暖房用循環ポン
プと、 前記暖房用循環流路の前記風呂追い焚き用循環流路との
熱交換部分をバイパスする暖房用バイパス流路と、 前記暖房用循環流路の前記暖房用バイパス流路によりバ
イパスされている部分を開閉する暖房用熱動弁と、 暖房運転中に前記浴槽への給湯あるいは給水を行うに際
して、先ず前記暖房用加熱装置と前記暖房用循環ポンプ
とを停止させると共に前記暖房用熱動弁の閉弁動作を開
始させ、前記暖房用熱動弁の閉弁動作が完了した頃に、
前記暖房用加熱装置と前記暖房用循環ポンプとを作動さ
せることにより前記暖房用バイパス流路を介して暖房用
湯水を循環させる暖房制御手段とを設けたことを特徴と
する、燃焼装置。2. A hot-water supply function, a heating function, and a bath reheating function, and at the time of reheating the bath, heat exchanging is performed between the circulation channel for heating and the circulation channel for reheating the bath. A combustion device that raises the temperature of hot water in a circulation channel for heating, or when supplying or supplying water to a bathtub, for supplying hot water or water through the bath hot water passage and the bath reheating circulation channel, A heating heating device that heats the hot water of the heating circulation passage, a heating circulation pump that circulates the hot water of the heating circulation passage, and a bath reheating circulation passage of the heating circulation passage. A heating bypass flow path that bypasses the heat exchange part of the, a heating thermal valve that opens and closes a part of the heating circulation flow path that is bypassed by the heating bypass flow path, and to the bathtub during the heating operation. Hot water supply or water supply Performed upon, firstly the so heating heating device and said heating circulation pump to start the closing operation of the heating Netsudoben with stops, the time in which the valve closing operation of the heating Netsudoben is completed,
A combustion apparatus, comprising: heating control means for circulating hot water for heating through the bypass passage for heating by operating the heating device for heating and the circulation pump for heating.
能、および風呂追い焚き機能を有し、風呂追い焚き時に
は、低温暖房用循環流路と風呂追い焚き用循環流路との
間で熱交換を行うことにより風呂追い焚き用循環流路の
湯水を温度上昇させ、浴槽への給湯あるいは給水時に
は、風呂給湯用通水流路と前記風呂追い焚き用循環流路
とを介して給湯あるいは給水を行う燃焼装置であって、 前記低温暖房用循環流路と高温暖房用循環流路との共通
部分に介装されて暖房用の湯水を貯留する暖房用温水タ
ンクと、 低温暖房運転時および高温暖房運転時ならびに風呂追い
焚き時に、前記暖房用温水タンクから流出して前記低温
暖房用循環流路と前記高温暖房用循環流路との共通部分
を流れる湯水を加熱する暖房用加熱装置と、 前記低温暖房用循環流路と前記高温暖房用循環流路との
共通部分に介装されて、暖房運転時および風呂追い焚き
時に前記低温暖房用循環流路の湯水を循環させ、かつ高
温暖房運転時に前記高温暖房用循環流路の湯水を循環さ
せる暖房用循環ポンプと、 前記低温暖房用循環流路と前記風呂追い焚き用循環流路
との間で熱交換を行う風呂追い焚き用熱交換装置と、 前記低温暖房用循環流路の前記風呂追い焚き用熱交換装
置部分をバイパスする低温暖房用バイパス流路と、 前記低温暖房用循環流路の前記低温暖房用バイパス流路
によりバイパスされている部分を開閉する暖房用熱動弁
と、 追い焚き時に前記風呂追い焚き用循環流路の湯水を循環
させる風呂追い焚き用循環ポンプと、 低温暖房運転中に前記浴槽への給湯あるいは給水を行う
に際して、先ず前記暖房用加熱装置と前記暖房用循環ポ
ンプとを停止させると共に前記暖房用熱動弁の閉弁動作
を開始させ、前記暖房用熱動弁の閉弁動作が完了した頃
に、前記暖房用加熱装置と前記暖房用循環ポンプとを作
動させることにより前記低温暖房用バイパス流路を介し
て低温暖房用湯水を循環させる暖房制御手段とを設けた
ことを特徴とする、燃焼装置。3. A hot water supply function, a low temperature heating function, a high temperature heating function, and a bath reheating function, and at the time of reheating the bath, heat is exchanged between the low temperature heating circulation channel and the bath reheating channel. To raise the temperature of the hot water in the bath reheating circulation channel, and when hot water or water is supplied to the bathtub, hot water or water is supplied through the bath hot water recirculation channel and the bath reheating circulation channel. A combustion device, a heating hot water tank for storing hot water for heating, which is interposed in a common portion of the low-temperature heating circulation passage and the high-temperature heating circulation passage, and a low-temperature heating operation and a high-temperature heating operation A heating device for heating hot water flowing out of the heating hot water tank and flowing in a common portion of the low-temperature heating circulation passage and the high-temperature heating circulation passage at the time of heating and reheating the bath; Circulation channel And the circulation channel for high-temperature heating are provided in common to circulate the hot and cold water in the circulation channel for low-temperature heating during heating operation and bath reheating, and the circulation flow for high-temperature heating during high-temperature heating operation. A circulation pump for heating that circulates hot and cold water in the passage, a heat exchange device for bath reheating for exchanging heat between the circulation passage for low temperature heating and the circulation passage for bath heating, and the circulation for low temperature heating A low-temperature heating bypass passage that bypasses the bath-exchanging heat exchange device portion of the passage, and a heating heat that opens and closes a portion of the low-temperature heating circulation passage that is bypassed by the low-temperature heating bypass passage. A valve, a bath reheating circulation pump that circulates the hot water in the bath reheating circulation channel when reheating, and a hot water heating or heating water supply to the bathtub during low temperature heating operation. And the circulation pump for heating are stopped and the valve closing operation of the thermal valve for heating is started, and when the valve closing operation of the thermal valve for heating is completed, the heating device for heating and the heating And a heating control means for circulating hot water for low-temperature heating through the bypass channel for low-temperature heating by operating a circulation pump for heating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP01853996A JP3417184B2 (en) | 1996-02-05 | 1996-02-05 | Combustion equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP01853996A JP3417184B2 (en) | 1996-02-05 | 1996-02-05 | Combustion equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09210379A JPH09210379A (en) | 1997-08-12 |
JP3417184B2 true JP3417184B2 (en) | 2003-06-16 |
Family
ID=11974440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP01853996A Expired - Fee Related JP3417184B2 (en) | 1996-02-05 | 1996-02-05 | Combustion equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3417184B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4084359B2 (en) * | 2005-01-25 | 2008-04-30 | リンナイ株式会社 | Liquid heat exchanger |
-
1996
- 1996-02-05 JP JP01853996A patent/JP3417184B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH09210379A (en) | 1997-08-12 |
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