JPS6315032A - Hot water supplier with additional burning apparatus - Google Patents

Abstract

PURPOSE:To lower the cost for an automatic hot water supplying function by supplying water from a hot water supplying heat exchanger to a tank provided at a part of a hot water circulation circuit and opening a tank opening and closing valve to actuate a pump. CONSTITUTION:At the time of an automatic hot water supply operation, a hot water supply control valve 24 is opened, whereby a water quantity sensor 29 for supplying hot water starts to count the water quantity and detects a fact that a predetermined quantity of water has been supplied, thus opening a tank opening and closing valve 31 and operating a pump 3. Further, simultaneously, a check valve 33 is closed and a bypass valve 32 is opened, whereby at the time of an automatic hot water supply operation, hot water flows along both outgoing and return pipes of a hot water circulation passage. Further, the quantity of automatically supplied hot water is counted by both the water quantity sensor 29 for supplying hot water and an additional burning water quantity sensor 36, and water quantity is adjusted by a supply hot water control valve 24 so that the water quantity counted by both sensor become equal. Further, the temperature of automatically supplied hot water is stably controlled by actuating a proportional control valve 13 based on a signal from a hot water supplying thermistor 18 and controlling the quantity of combustion of a hot water supply burner 14, thus automatically supplying hot water to a bathtub 4.

Description

【発明の詳細な説明】 ′　産業上の利用分野 本発明は浴槽へ自動給湯する追焚機能付給湯機に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a water heater with a reheating function that automatically supplies hot water to a bathtub.

従来の技術 近年、追ズ機能付給湯機は給湯機と浴槽とを接続し、ポ
ンプで温水を循環する追焚機を組合せた複合商品が開発
されておシ、さらに、浴槽へ自動給湯する機能を追加し
たものなど、風呂の自動化が進んでいる。Conventional technology In recent years, water heaters with reheating function have been developed as composite products that connect the water heater and bathtub and combine the reheating device that circulates hot water with a pump. The automation of baths is progressing.

従来の追焚機能付給湯機について説明する。A conventional water heater with reheating function will be explained.

第２図にその従来例の構成概略図を示す。FIG. 2 shows a schematic diagram of the configuration of the conventional example.

１は給湯用熱交換器で給水口１ａおよび給湯口１ｂに接
続されている。２は追突用熱交換器で温水戻口２ａおよ
び温水注口２ｂに接続されている。温水戻口２ａから追
突用熱交換器２に至る温水通路にポンプ３を設け、更に
、温水戻口２ａおよび温水注口２ｂに浴槽４を接続管５
で連結して温水循環通路を構成する。前記各々の熱交換
器１，２には排気筒６が接続され、排気ファンクによっ
て燃焼排気ガスを排気口８に・排出するように構成する
。また、燃焼用空気を給気口９から供給できるようにケ
ース１０の一部に形成しである。燃焼通路は、元電磁弁
１１から分岐して、給湯用電磁弁１２と比例制御弁１３
　を通して給湯用バーナ１４　に、そして追突用電磁弁
１５を通して追焚用バーナ１６に各々接続して構成され
ている。1 is a hot water supply heat exchanger connected to a water supply port 1a and a hot water supply port 1b. 2 is a rear-end heat exchanger connected to a hot water return port 2a and a hot water inlet 2b. A pump 3 is provided in the hot water passage leading from the hot water return port 2a to the rear-end heat exchanger 2, and a bathtub 4 is connected to the hot water return port 2a and the hot water inlet 2b by a connecting pipe 5.
are connected to form a hot water circulation passage. An exhaust pipe 6 is connected to each of the heat exchangers 1 and 2, and the combustion exhaust gas is discharged to an exhaust port 8 by an exhaust fan. Further, it is formed in a part of the case 10 so that combustion air can be supplied from the air supply port 9. The combustion passage branches from the original solenoid valve 11 to a hot water supply solenoid valve 12 and a proportional control valve 13.
It is connected to the hot water supply burner 14 through the reheating burner 14 and to the reheating burner 16 through the reheating solenoid valve 15.

給水側通路に給水を検知して信号を出す給水検知素子１
７を設けるとともに、給湯用熱交換器１の出口に給湯用
サーミスタ１８を設ける。Water supply detection element 1 that detects water supply in the water supply side passage and issues a signal
7 is provided, and a hot water supply thermistor 18 is also provided at the outlet of the hot water supply heat exchanger 1.

ポンプ３と追突用熱交換器２に至る温水通路に温水の循
環を検知する循環水検知素子１９をを設けるとともに、
追突用熱交換器２の入口に追焚用サーミスタ２０を設け
る。給湯せん２１を、例えば浴室や台所などへ給湯配管
２２を通して、給湯口１ｂへ接続するとともに、浴槽へ
自動給湯するだめの給湯制御弁２４とホンパー２５と水
位センサ２６を有する自動給湯ユニット２３を給湯配管
２２から分岐して設け、浴槽４へ接続する。A circulating water detection element 19 for detecting the circulation of hot water is provided in the hot water passage leading to the pump 3 and the rear-end heat exchanger 2, and
A thermistor 20 for reheating is provided at the inlet of the heat exchanger 2 for reheating. The hot water heater 21 is connected to the hot water supply inlet 1b through a hot water supply pipe 22 to, for example, a bathroom or kitchen, and an automatic hot water supply unit 23 having a hot water control valve 24, a homper 25, and a water level sensor 26 for automatically supplying hot water to the bathtub is connected to the hot water supply pipe 22 to the bathroom or kitchen, for example. It is provided branching off from the piping 22 and connected to the bathtub 4.

前記の各種センサの信号を受けてアクチェー・り（電磁
弁、ポンプなど）は制御回路２７とリモコン２８によっ
て動作するように構成されている。Actuators (electromagnetic valves, pumps, etc.) are configured to be operated by a control circuit 27 and a remote controller 28 in response to signals from the various sensors described above.

次に動作を説明すると、給湯せん２１を開くことにより
、給水検知素子１７が動作して、元電磁弁１１、給湯用
電磁弁１２、比例制御弁１３が開弁し、給湯用バーナ１
４に点火させ給湯用サーミスタ　１８の信号によシ、出
湯温度をリモコン２８の給湯湯温設定器（図示せず）で
設定された給湯温度になるように、制御回路２７で演算
処理された出力で比例制御弁１３を動作させ、給湯用バ
ーナ１４の燃焼量を制御して給湯湯温を安定に制御する
ように構成している。Next, the operation will be explained. When the hot water heater 21 is opened, the water supply detection element 17 is operated, the main solenoid valve 11, the hot water supply solenoid valve 12, and the proportional control valve 13 are opened, and the hot water supply burner 1 is opened.
The output is calculated and processed by the control circuit 27 so that the hot water supply temperature reaches the hot water temperature set by the hot water temperature setting device (not shown) of the remote control 28. The proportional control valve 13 is operated to control the combustion amount of the hot water supply burner 14 to stably control the temperature of hot water.

一方、リモコン２８に設けた追焚スイッチ（特に図示せ
ず）を操作することにより、ポンプ３が運転し浴槽４に
予め蓄えられた水あるいは湯が循環し、循環水検知素子
１９が動作し、元電磁弁１１１追焚用電磁弁１５が開弁
し、追焚用バーナ１６に点火させる。On the other hand, by operating a reheating switch (not particularly shown) provided on the remote control 28, the pump 3 is operated and the water or hot water stored in the bathtub 4 is circulated, and the circulating water detection element 19 is operated. The original solenoid valve 111 and the reheating solenoid valve 15 are opened, and the reheating burner 16 is ignited.

循環されている戻シ湯温を感知し、追突用熱交換器２の
入口に設けた追焚用サーミスタ２０の信号とリモコン２
８の浴槽湯温設定器（図示せず）で設定された風呂沸き
上げ温度になるように、制御回路２７を動作させ、追突
用電磁弁１５を動作させ、追焚用バーナ１６の燃焼量を
制御して、循環温水を安定に制御して浴槽湯温を制御す
るように構成している。The temperature of the circulating return water is sensed, and the signal from the reheating thermistor 20 installed at the entrance of the reheating heat exchanger 2 and the remote control 2 are detected.
The control circuit 27 is operated, the solenoid valve 15 for reheating is operated, and the combustion amount of the burner 16 for reheating is adjusted so that the bath boiling temperature is set by the bathtub water temperature setting device 8 (not shown). The system is configured to stably control the circulating hot water and control the bathtub water temperature.

また、リモコン２８に設けである自動給湯スイッチ（図
示せず）を操作すると、自動給湯ユニット２３め給湯制
御弁２４が開弁しリモコン２８の給湯湯温設定器（図示
せず）で設定された自動給湯温度になるように、制御回
路２７で演算処理された出力で比例制御弁１３を動作さ
せ、給湯用バーナ１４の燃焼量を制御して給湯湯温を安
定に制御することにより、浴槽４への自動給湯化と、浴
槽温度の自動温調を実現している。In addition, when an automatic hot water supply switch (not shown) provided on the remote control 28 is operated, the hot water supply control valve 24 of the automatic hot water supply unit 23 opens, and the hot water temperature set by the hot water temperature setting device (not shown) on the remote control 28 is opened. By operating the proportional control valve 13 with the output calculated by the control circuit 27 and controlling the combustion amount of the hot water supply burner 14 to stably control the hot water temperature, the bathtub 4 Automatic hot water supply to the bathtub and automatic temperature control of the bathtub temperature have been realized.

発明が解決しようとする問題点 しかしながら、前記のような構成では、自動給湯ユニッ
ト２３が、浴槽４のすぐ近傍に設置する必要がちシ、建
物の構成土２．浴室が部、雫の中央にある場合に取付が
不可能であるとともに、仮に壁側に設置できても、建物
外観上および美観上不具合であるなど、問題点を有して
いた。Problems to be Solved by the Invention However, in the above-described configuration, the automatic hot water supply unit 23 tends to need to be installed in the immediate vicinity of the bathtub 4, and the construction of the building is difficult. If the bathroom is located in the center of a building, it cannot be installed, and even if it could be installed on the wall, it would be problematic in terms of the appearance and aesthetics of the building.

本発明は前記問題点に鑑み、自動給湯機能をコスト安価
にし、しかも、設置フリーにして工事性、美観上で有効
なものを得んとするものである。In view of the above-mentioned problems, the present invention aims to provide an automatic hot water supply function that is inexpensive, easy to install, and effective in terms of ease of construction and aesthetics.

問題点を解決するための手段 本発明は、給湯用熱交換器、浴槽と接続しポンプで温水
循環する温水循環通路の追焚用熱交換器、元電磁弁に直
列接続した比例制御弁、前記各熱交換器にのぞませた給
湯用バーナと追焚用バーナの各々に、前記比例制御弁に
おいて、分岐して接続した給湯用電磁弁および追焚用電
磁弁、前記給湯用熱交換器の出口に設けた給湯用サーミ
スタと追焚用熱交換器の入口に設けた追突用サーミスタ
、前記給湯用サーミスタの下流の給湯通路から分岐し浴
槽への給湯量をカウントする給湯水量センサ、前記給湯
水量センサの下流に浴槽へ自動給湯するための給湯制御
弁、前記給湯制御弁から吐出する温水を蓄えるタンク、
前記タンクと温水循環通路を接続する自動給湯通路、前
記タンクと温水循環通路を開閉するタンク開閉弁、前記
ポンプの下流にポンプから吐出される水量をカウントす
る追突用水量センサ、前記温水循環通路と自動給湯通路
の接続部よシ上流側に設けた逆流防止弁、前記ポンプの
前後に位置した追突用水量センサの下流側と逆流防止弁
め上流側とを接続した温水循環バイパス通路、および前
記温水循環バイパス通路を開閉するバイパス弁からなり
、自動給湯時には前記給湯制御弁を開弁し、前記タンク
内に一定水量が給水されたことを前記給湯用水量センサ
で検出し、前記タンク開閉弁を開弁するとともにポンプ
を運転し又同時に逆流防止弁を閉弁し、バイパス弁を開
弁することにより、自動給湯運転時には温水循環通路の
往き戻り管の両方に流れるように構成し、又自動給湯量
は給湯用水量゛センサと追突用水量センサの両方でカウ
ントし、前記各水量センサのカウント量が同一になるよ
うに給湯制御弁で調整するよう構成した、ものである。Means for Solving the Problems The present invention provides a heat exchanger for hot water supply, a heat exchanger for reheating a hot water circulation passage connected to a bathtub and circulating hot water using a pump, a proportional control valve connected in series to the original solenoid valve, and a proportional control valve connected in series to the original solenoid valve. A solenoid valve for hot water supply and a solenoid valve for reheating are branched and connected in the proportional control valve to each of the hot water supply burner and the reheating burner facing each heat exchanger. A thermistor for hot water supply provided at the outlet, a thermistor for reheating provided at the entrance of the heat exchanger for reheating, a hot water supply amount sensor that branches from the hot water passage downstream of the hot water supply thermistor and counts the amount of hot water supplied to the bathtub, and the amount of hot water supplied to the bathtub. a hot water supply control valve for automatically supplying hot water to the bathtub downstream of the sensor; a tank for storing hot water discharged from the hot water supply control valve;
An automatic hot water supply passage connecting the tank and the hot water circulation passage, a tank opening/closing valve that opens and closes the tank and the hot water circulation passage, a rear-end water flow sensor that counts the amount of water discharged from the pump downstream of the pump, the hot water circulation passage; A backflow prevention valve provided upstream of the connection part of the automatic hot water supply passage, a hot water circulation bypass passage connecting the downstream side of the rear-end water flow sensor located before and after the pump and the upstream side of the backflow prevention valve, and the hot water Consisting of a bypass valve that opens and closes a circulation bypass passage, during automatic hot water supply, the hot water supply control valve is opened, and when the hot water supply water amount sensor detects that a certain amount of water has been supplied into the tank, the tank opening/closing valve is opened. By opening the valve and operating the pump, and at the same time closing the check valve and opening the bypass valve, water flows into both the return and return pipes of the hot water circulation path during automatic hot water supply operation, and the amount of automatic hot water supply is The system is configured such that both the hot water supply water amount sensor and the rear-end water amount sensor count, and the hot water supply control valve is used to adjust the counted amount of each of the water amount sensors to be the same.

作用 本発明は前記した構成によって、給湯運転時には、給湯
用サーミスタの信号によ量制御回路で演算処理された出
力で比例制御弁を動作させ給湯用バーナの燃焼量を制御
して給湯湯温を安定に制御することができるとともに追
焚運転時には追突用サーミスタの信号により制御回路で
演算処理された出力で比例制御弁を動作させ追焚用バー
ナの燃焼量を制御して浴槽湯温を安定に制御することが
できる。According to the above-described configuration, the present invention operates the proportional control valve with the output calculated by the quantity control circuit according to the signal of the hot water supply thermistor to control the combustion amount of the hot water supply burner during hot water supply operation to control the hot water temperature. Stable control is possible, and during reheating operation, the proportional control valve is operated by the output calculated by the control circuit using the signal from the reheating thermistor to control the combustion amount of the reheating burner, thereby stabilizing the bath water temperature. can be controlled.

また、同時運転時には制御回路で優先的に給湯用モード
で演算処理された出力で比例制御弁を動作させ給湯湯温
を安定に制御するとともに、追突側は追突用サーミスタ
の信号で追焚用電磁弁を開閉制御することにより、浴槽
湯温を安定に制御することができる。In addition, during simultaneous operation, the control circuit operates the proportional control valve with the output computed in hot water supply mode with priority to stably control the hot water temperature. By controlling the opening and closing of the valve, the bathtub water temperature can be stably controlled.

さらに、自動給湯運転時には給湯制御弁全開弁すること
により、給湯用熱交換器から温水循環回路の一部に設け
たタンクに注水し、一定水量が給水されたことを給湯用
水量センサで検出し、タンク開閉弁を開弁するとともに
ポンプを運転する。又、同時に逆流防止弁を閉弁し、バ
イパス弁を開弁することにより、自動給湯運転時には温
水循環通路の往き戻り管の両方に流れるように構成し、
又自動給湯量は給湯用水量センサと追突用水量センサの
両方でカウントし、各水量センナのカウント量が同一に
なるように給湯制御弁で調整する。Furthermore, during automatic hot water supply operation, by fully opening the hot water supply control valve, water is injected from the hot water heat exchanger into a tank installed in a part of the hot water circulation circuit, and the hot water supply water amount sensor detects that a certain amount of water has been supplied. , open the tank on-off valve and operate the pump. Also, by simultaneously closing the backflow prevention valve and opening the bypass valve, the hot water is configured to flow into both the outgoing and return pipes of the hot water circulation passage during automatic hot water supply operation.
The amount of automatic hot water supply is counted by both the hot water supply water amount sensor and the rear-end water amount sensor, and is adjusted by the hot water supply control valve so that the counted amount of each water amount sensor is the same.

また自動給湯湯温を給湯用サーミスタの信号により比例
制御弁を動作させ、給湯用バーナの燃焼量を制御して浴
槽湯温を所期の風呂沸き上げ温度に、追突運転せずに自
動給湯運転のみで完了することができる。In addition, a proportional control valve is operated based on the signal from the hot water supply thermistor, and the combustion amount of the hot water supply burner is controlled to bring the bath water temperature to the desired bath boiling temperature, allowing automatic hot water supply operation without rear-end operation. It can be completed only by

また、部品点数を少なくでき、自動給湯機能をコスト安
価にし、しかも、設置フリーにして工事性、美観上も有
効にして目的を達成することができる。In addition, the number of parts can be reduced, the cost of the automatic hot water supply function can be reduced, and the purpose can be achieved by making the system free of installation and improving workability and aesthetics.

゛　実施例 第１図は本発明の追突機能付給湯機の一実施例を示す構
成概略図を示す。゛ Embodiment FIG. 1 is a schematic diagram showing an embodiment of the water heater with rear impact function of the present invention.

図において、第２図と同一符号は同一部品、同一部分を
示す。In the figure, the same reference numerals as in FIG. 2 indicate the same parts and parts.

図において、２９は給湯用水量センサ、３０はタンク、
３１はタンク開閉弁、３２はバイパス弁、３３は逆流防
止弁、３４は温水循環バイパス通路３５は自動給湯通路
、３６は追焚用水量センサ、を示す。In the figure, 29 is a water supply sensor, 30 is a tank,
31 is a tank opening/closing valve, 32 is a bypass valve, 33 is a backflow prevention valve, 34 is a hot water circulation bypass passage 35 is an automatic hot water supply passage, and 36 is a reheating water amount sensor.

本発明の追突機能付給湯機の構成を説明する。The configuration of the water heater with rear-end collision function of the present invention will be explained.

本発明の追突機能付給湯機も従来例と同様１は給湯用熱
交換器で給水口１ａおよび給湯口１ｂに接続されており
、給水側通路に給水を検知して信号を出す給水検知素子
１７を有する。　２は追焚用熱交換器で温水戻口２ａお
よび温水注口２ｂに接続されている。Similar to the conventional example, the water heater with rear-end collision function of the present invention has a heat exchanger 1 for hot water supply, which is connected to a water supply port 1a and a hot water supply port 1b, and a water supply detection element 17 that detects water supply in the water supply side passage and outputs a signal. has. 2 is a reheating heat exchanger connected to a hot water return port 2a and a hot water inlet 2b.

温水戻口２ａから追焚用熱交換器２に至る温水通路に循
環を止める逆流防止弁３３とポンプ３・と温水の循環水
量を検出する追焚用水量センナ３・６と、自動給湯運転
時のみに動作する逆流防止弁３３と追焚用水量センサ３
６の下流と逆流防止弁３３の上流に温水循環バイパス通
路３４の接続口を設け、温水循環バイパス通路３４中に
は通路を開閉するバイパス弁３２を有する。A backflow prevention valve 33 that stops circulation in the hot water passage from the hot water return port 2a to the reheating heat exchanger 2, a pump 3, a reheating water amount sensor 3, 6 that detects the amount of circulating hot water, and during automatic hot water supply operation. The backflow prevention valve 33 and reheating water amount sensor 3 that operate only when
A connection port for a hot water circulation bypass passage 34 is provided downstream of the hot water circulation bypass passage 6 and upstream of the non-return valve 33, and a bypass valve 32 for opening and closing the passage is provided in the hot water circulation bypass passage 34.

さらに、自動給湯運転時に給湯用熱交換器１からの温水
を温水循環回路にとり入れるためにポンプ３と逆流防止
弁３３との間の温水循環通路から、自動給湯通路３５の
接続口を設は自動給湯通路３５の上端゛にタンク３０と
タンク開閉弁３１を設は自動給湯通路３５と温水循環通
路を構成する。Furthermore, in order to take hot water from the hot water heat exchanger 1 into the hot water circulation circuit during automatic hot water supply operation, a connection port for the automatic hot water supply passage 35 is automatically installed from the hot water circulation passage between the pump 3 and the backflow prevention valve 33. A tank 30 and a tank opening/closing valve 31 are provided at the upper end of the hot water supply passage 35 to constitute an automatic hot water supply passage 35 and a hot water circulation passage.

前記各々の熱交換器１．２には排気筒６が接続され、排
気ファン７によって燃焼排気ガスを排気口８に排出する
ように構成する。また、燃焼用空気を給気口９から供給
できるようにケース１０の一部に形成しである。燃料通
路は、元電磁弁１１と比例制御弁１３を直列接続し、こ
れよシ分岐して給湯用電磁弁１２を通して給湯用バーナ
１４と、追焚用電磁弁１５を通して追突用バーナ１６に
、比例制御弁１３が共量に接続される・ように分岐接続
する。給湯用熱交換器１の出口に設けた給湯用サーミス
タ１８の信号とリモコン２８の給湯湯温設定器（図示せ
ず）で設定された給湯温度になるように、制御回路２７
で演算処理された出力で比例制御弁１３を動作させ、給
湯用バーナ１４の燃焼量を制御して給湯湯温を安定に制
御するように構成している。An exhaust pipe 6 is connected to each of the heat exchangers 1.2, and the combustion exhaust gas is discharged to an exhaust port 8 by an exhaust fan 7. Further, it is formed in a part of the case 10 so that combustion air can be supplied from the air supply port 9. The fuel passage connects the main solenoid valve 11 and the proportional control valve 13 in series, and branches from this to the hot water supply burner 14 through the hot water supply solenoid valve 12, and the proportional control valve 16 through the reheating solenoid valve 15. Branch connections are made so that the control valves 13 are connected to the same amount. The control circuit 27 controls the hot water supply temperature so that the hot water supply temperature is set by the signal of the hot water supply thermistor 18 provided at the outlet of the hot water supply heat exchanger 1 and the hot water supply temperature setting device (not shown) of the remote control 28.
The proportional control valve 13 is operated using the output calculated in , and the combustion amount of the hot water supply burner 14 is controlled to stably control the temperature of hot water.

一方、追焚用熱交換器２の入口に設けた追突用サーミス
タ２０の信号とリモコン２８の浴槽湯温設定器（図示せ
ず）で設定された風呂沸き上げ温度になるように、制御
回路２７で演算処理された出力で比例制御弁１３を動作
させ、前記追突用バーナ１６の燃焼量を制御して、循環
温水を安定に制御して浴槽湯温を制御するように構成し
ている。On the other hand, the control circuit 27 controls the bath boiling temperature so that the bath boiling temperature is set by the signal from the thermistor 20 for reheating provided at the entrance of the heat exchanger 2 for reheating and the bath water temperature setting device (not shown) of the remote control 28. The proportional control valve 13 is operated with the output calculated in , and the combustion amount of the rear-end burner 16 is controlled, thereby stably controlling the circulating hot water and controlling the bathtub water temperature.

なお、浴槽湯温の立上シを早くするため、比例制御弁１
３で制御される追突用バーナ１６の燃焼量を浴槽湯温設
定器で設定された風呂沸き上げ温度まで、比例制御せず
に最大能力で制御して・沸き上が９温度に到達した時に
追焚用電磁弁１５を閉弁するように制御回路２７を構成
している。In addition, in order to quickly raise the temperature of the bath water, the proportional control valve 1
The combustion amount of the rear-end burner 16 controlled in 3 is controlled at the maximum capacity without proportional control until it reaches the bath boiling temperature set by the bathtub water temperature setting device.When the boiling temperature reaches 9. A control circuit 27 is configured to close the firing solenoid valve 15.

給湯用電磁弁１２と追焚用電磁弁１５は各々の湯温制御
をする時に開弁、閉弁するように構成しである。The hot water supply solenoid valve 12 and the reheating solenoid valve 15 are configured to open and close when controlling the respective hot water temperatures.

また、同時運転時には制御回路２７で優先的に給湯用モ
ードで演算処理された出力で比例制御弁１３を動作させ
給湯湯温を安定に制御するとともに、追焚側は追突用サ
ーミスタ２ｏの信号で追焚用電磁弁１５を開閉制御する
ことにより、浴槽湯温を安定に制御するように構成しで
ある。In addition, during simultaneous operation, the control circuit 27 operates the proportional control valve 13 with the output calculated in hot water supply mode with priority to stably control the hot water temperature, and the reheating side is controlled by the signal from the rear collision thermistor 2o. By controlling the opening and closing of the reheating solenoid valve 15, the bathtub water temperature is stably controlled.

さらに、自動給湯運転時には給湯制御弁２４を開くこと
によシ、給湯制御弁２４よシ上流にある給湯用水量セン
サ２９が水量のカウントを開始し、一定水量が給水され
たことを検出し、タンク開閉弁３１を開弁するとともに
ポンプ３を運転する。Furthermore, during automatic hot water supply operation, by opening the hot water supply control valve 24, the hot water supply water amount sensor 29 located upstream of the hot water supply control valve 24 starts counting the amount of water, and detects that a certain amount of water has been supplied. The tank opening/closing valve 31 is opened and the pump 3 is operated.

又同時に逆流防止弁３３を閉弁し、バイパス弁３２を開
弁することにより、自動給湯運転時には温水循環通路の
往き戻り管の両方に流れるように構成し、又自動給湯量
は給湯用水量センサ２９、と追焚用水量センサ３６の両
方でカウントし、前゛記名水量センサのカウント量が同
一になるように給湯制御弁２４で調整する。又自動給湯
温度は給湯用サーミスタ１８の信号により、比例制御弁
１３を動作させ給湯用バーナ１４の燃焼量を制御して給
湯湯温を安定に制御して、浴槽４へ自動給湯するように
構成しである。At the same time, the backflow prevention valve 33 is closed and the bypass valve 32 is opened, so that hot water flows into both the return and return pipes of the hot water circulation passage during automatic hot water supply operation, and the automatic hot water supply amount is determined by the hot water supply water amount sensor. 29 and the reheating water amount sensor 36, and the hot water supply control valve 24 is adjusted so that the counted amount of the water amount sensor 29 and the reheating water amount sensor 36 are the same. Furthermore, the automatic hot water supply temperature is configured such that the proportional control valve 13 is operated in response to a signal from the hot water supply thermistor 18 to control the combustion amount of the hot water supply burner 14 to stably control the hot water temperature and automatically supply hot water to the bathtub 4. It is.

前記実施例の動作を説明すると、給湯口１ｂに接続され
た給湯配管２２を通して、例えば浴室や台所などの給湯
せん２１を開けると、給水検知素子１７で給水を検知し
て給湯運転シーケンスが動作するように構成されており
排気ファン７が回転する。元電磁弁１１、給湯用電磁弁
１２、比例制御弁１３を開弁させ、燃料に着火保持させ
る。To explain the operation of the above embodiment, when a hot water heater 21 in a bathroom or kitchen, for example, is opened through a hot water supply pipe 22 connected to a hot water supply port 1b, water supply is detected by the water supply detection element 17, and a hot water supply operation sequence is activated. The exhaust fan 7 rotates. The main solenoid valve 11, the hot water supply solenoid valve 12, and the proportional control valve 13 are opened to keep the fuel ignited.

（着火保持手段は特に図示せず）そして、給湯用バーナ
１４が燃焼することにより給湯用熱交換器１が熱せられ
、給湯口１ｂを通して給湯せん２１から出湯される。(The ignition holding means is not particularly shown) Then, the hot water supply heat exchanger 1 is heated by combustion of the hot water supply burner 14, and hot water is discharged from the hot water heater 21 through the hot water supply port 1b.

その出湯温度を給湯用サーミスタ１８で検知してリモコ
ン２８の給湯湯温設定器（図示せず）で設定された給湯
温度になるように、制御回路２７で演算処理された出力
で比例制御弁］３を動作させ、給湯用バーナ１４の燃焼
量を制御して給湯湯温を安定に制御する。The output temperature of the hot water is detected by the hot water supply thermistor 18, and the proportional control valve uses the output calculated by the control circuit 27 so that the hot water temperature is set by the hot water temperature setting device (not shown) of the remote control 28.] 3 is operated to control the combustion amount of the hot water supply burner 14 to stably control the temperature of hot water.

一方、リモコン２８に設けた追焚運転スイッチ（特に図
示せず）を操作することによりポンプ。On the other hand, the pump is activated by operating a reheating operation switch (not particularly shown) provided on the remote control 28.

３と排気ファン７が回転する。3 and exhaust fan 7 rotate.

浴槽４に予め蓄えられた湯や水がポンプ３で循環される
と、追焚用水量センサ３６が検知して追焚運転シーケン
スが動作するように構成されており、元電磁弁１１．追
焚用電磁弁唖、比例制御弁１３を開弁させ、燃料に着火
保持させる（着火保持手段は特に図示せず。） そして、追焚用バーナ１５が燃焼することにより追焚用
熱交換器２が熱せられ温水注口２ｂから接続管５を通し
て浴槽４内を循環して、温水戻口２ａに温水が循環され
る。浴槽４内の湯温と等しい循環温水を追焚用サーミス
タ２０の信号とリモコン２８の浴槽湯温設定器（図示せ
ず）で設定された風呂沸き上げ温度になるように、制御
回路２７で演算処理された出力で比例制御弁１３を動作
させ追焚用バーナ１６の燃焼量を制御して、循環温水を
安定に制御して浴槽湯温を制御する。When hot water or water previously stored in the bathtub 4 is circulated by the pump 3, the reheating water amount sensor 36 detects this and the reheating operation sequence is activated, and the main solenoid valve 11. The reheating solenoid valve 13 and the proportional control valve 13 are opened to keep the fuel ignited (the ignition retaining means is not particularly shown).The reheating burner 15 then burns, causing the reheating heat exchanger to open. 2 is heated and circulated in the bathtub 4 from the hot water spout 2b through the connecting pipe 5, and the hot water is circulated to the hot water return port 2a. The control circuit 27 calculates the circulating hot water equal to the water temperature in the bathtub 4 so that it reaches the bath boiling temperature set by the signal from the reheating thermistor 20 and the bathtub water temperature setting device (not shown) of the remote control 28. The proportional control valve 13 is operated using the processed output to control the combustion amount of the reheating burner 16, thereby stably controlling the circulating hot water and controlling the bathtub water temperature.

なお、浴槽湯温の立上りを早くするため、比例制御弁１
３で制御される追焚用バーナ１６の・燃焼上量を浴槽湯
温設定器で設定された風呂沸き上げ温度まで、比例制御
せずに最大能力で制御して沸き上がり温度に到達した時
に追焚用電磁弁１５を閉弁する。In addition, in order to make the bath water temperature rise quickly, the proportional control valve 1
The additional combustion amount of the reheating burner 16 controlled in step 3 is controlled at the maximum capacity without proportional control until the bath boiling temperature is set by the bathtub water temperature setting device, and the additional combustion is performed when the boiling temperature is reached. The combustion solenoid valve 15 is closed.

またリモコン２８に設けた自動給湯運転スイ。There is also an automatic hot water supply operation switch provided on the remote control 28.

チを操作すると、給湯制御弁２４を開弁し、給湯用熱交
換器１から追焚用熱交換器２へ、自動給湯通路３５を通
して温水性ロ２ｂ、温水戻口２ａの両方から浴槽４へ自
動給湯される。When H is operated, the hot water supply control valve 24 is opened, and the water is passed from the hot water supply heat exchanger 1 to the reheating heat exchanger 2, through the automatic hot water supply passage 35, and from both the hot water outlet 2b and the hot water return port 2a to the bathtub 4. Hot water is supplied automatically.

給湯検知素子１７で、その給水を検知して自動給湯運転
シーケンスが動作するように構成されており排気ファン
７が回転する。給湯制御弁２４を開弁じてから給湯用水
量センサ２９がカウントを開始し、タンク３０に一定水
量給水されたことを給湯水量センサが検出してタンク開
閉弁を開、く。同時にポンプ３を運転し、逆流防止弁３
３を閉止する。又自動給湯運転時の浴槽４への自動給湯
を短くするために、温水循環バイパス通路３４を設はバ
イパス弁３２を開弁することにより、温水性ロ２ｂ、温
水戻口２ａの両方から浴槽４−へ自動給湯される。The hot water supply detection element 17 is configured to detect the water supply and operate an automatic hot water supply operation sequence, and the exhaust fan 7 rotates. After the hot water supply control valve 24 is opened, the hot water supply water amount sensor 29 starts counting, and when the hot water supply water amount sensor detects that a certain amount of water has been supplied to the tank 30, the tank opening/closing valve is opened. At the same time, pump 3 is operated and check valve 3 is operated.
Close 3. In addition, in order to shorten the automatic hot water supply to the bathtub 4 during automatic hot water supply operation, a hot water circulation bypass passage 34 is provided, and by opening the bypass valve 32, the bathtub 4 can be supplied from both the hot water outlet 2b and the hot water return port 2a. - Water is automatically supplied to.

元電磁弁１１、給湯用電磁弁１２、比例制御弁１３を開
弁させ、燃料に着火保持させる。（着火保持手段は特に
図示せず）そして、給湯用バーナ１４が燃焼することに
より給湯用熱交換器１が熱せられ、温水性ロ２ｂ、温水
戻は２ａの両方から浴槽４へ自動給湯される。その給湯
温度を給湯用サーミスタ１８で検知してリモコン２８の
浴槽湯温設定器（図示せず）で設定された給湯温度にな
るように、制御回路２７で演算処理された出力で比例制
御弁１３を動作させ給湯用バーナ１４の燃焼量を制御し
て給湯湯温を安定に制御して、浴槽４へ自動給湯する。The main solenoid valve 11, the hot water supply solenoid valve 12, and the proportional control valve 13 are opened to keep the fuel ignited. (The ignition holding means is not particularly shown.) The hot water supply heat exchanger 1 is heated by the combustion of the hot water supply burner 14, and hot water is automatically supplied to the bathtub 4 from both the hot water bath 2b and hot water return 2a. . The proportional control valve 13 uses an output calculated by the control circuit 27 to detect the hot water supply temperature with the hot water supply thermistor 18 and set the hot water supply temperature with the bathtub hot water temperature setting device (not shown) of the remote control 28. is operated to control the combustion amount of the hot water supply burner 14 to stably control the temperature of hot water and automatically supply hot water to the bathtub 4.

こうすることによって、所期の風呂沸き上げ温度に追焚
運転をせずに自動給湯運転のみで完了することができる
。By doing this, it is possible to complete the automatic hot water supply operation only without reheating the bath to the desired temperature.

浴槽４への給湯量は、給湯用水量センサ２９と風呂用水
量センサ３６の両方でカウントし、ポンプ３の運転をタ
ンク３０に一定量給水されたことを給湯用水量センサ２
９で検知してから開始する。The amount of hot water supplied to the bathtub 4 is counted by both the hot water supply water amount sensor 29 and the bath water amount sensor 36.
Start after detection at 9.

又、ポンプ３の吐出能力に合わせて、給湯制御弁２４を
調整し、タンク３０内の水位を一定に保ち、ポンプ３に
常に水が給水されるように構成しである。又ポンプ３の
吐出水量は追焚用水量センサ３６で検出しタンク３０へ
の給湯制御弁２４からの給水は給湯用水量センサ２９で
検出し、追焚用水量センサ３６と給湯用水量センサ２９
のカウント量を制御回路２７で演算計算して、自動的に
給湯制御弁２４を調整する。Further, the hot water supply control valve 24 is adjusted according to the discharge capacity of the pump 3 to keep the water level in the tank 30 constant so that water is always supplied to the pump 3. Further, the amount of water discharged from the pump 3 is detected by the reheating water amount sensor 36, and the water supplied from the hot water supply control valve 24 to the tank 30 is detected by the hot water supply water amount sensor 29.
The control circuit 27 calculates the count amount and automatically adjusts the hot water supply control valve 24.

発明の効果 本発明は、前記構成に基いて次のような効果を生ずる。Effect of the invention The present invention produces the following effects based on the above configuration.

。 １、給湯・追焚とも、一つの比例制御弁で燃焼量を比例
制御して湯温制御をするので湯温の安定化が図れる。. 1. Both hot water supply and reheating use a single proportional control valve to proportionally control the amount of combustion and control the hot water temperature, making it possible to stabilize the hot water temperature.

゛２．自動給湯機能を本体に内蔵したので、コスト安価
にして、しかも、設置フリーにして工事性を向上させる
ことができるとともに、建物の美観上も損ねないもので
ある。゛2. Since the automatic hot water supply function is built into the main body, the cost can be reduced, installation is free, and construction workability is improved, and the appearance of the building is not impaired.

３浴槽への自動給湯は温水循環用の接続管を使用するの
で、自動給湯用の給湯配管を必要とせず、工事費も安価
にできる。3. Since the automatic hot water supply to the bathtubs uses a connecting pipe for hot water circulation, there is no need for hot water piping for automatic hot water supply, and construction costs can be reduced.

４、浴槽の蓋をしたまま自動給湯が出来るので、湯ざめ
もなく、省エネルギー化が図れ、経済的である。4. Since hot water can be supplied automatically while the bathtub lid is closed, there is no leakage of hot water, which saves energy and is economical.

５、所期の風呂沸き上げ温度に追突運転をせずに、自動
給湯運転のみで完了することができ、従来のように自動
給湯後に追突運転を必要としないので、風呂沸き上が９
時間も短かくなり、経済的に快適なお風呂の生活ができ
る。5. It is possible to reach the desired bath boiling temperature only by automatic hot water supply operation, without having to drive to reach the desired bath boiling temperature. Unlike conventional methods, there is no need to drive after automatic hot water supply, so the bath boils up to 9.
It takes less time and allows you to enjoy a more economical and comfortable bathing experience.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の追焚機能付給湯機の一実施例を示す構
成概略図、第２図は従来例の構成概略図、を示す。 １：給湯用熱交換器、２：追焚用熱交換器、３：ポンプ
、４：浴槽、１１：元電磁弁、１２：給湯用電磁弁、１
３：比例制御弁、１４：給湯用バーナ、１５：追焚用電
磁弁、１６：追焚用バーナ、１７：給水検知素子、１８
：給湯用サーミスタ、１９：循環水検知素子、２０：追
焚用サーミスタ、２４：給湯制御弁、２９：給湯用水量
センサ、３０：タンク、３１：タンク開閉弁、３２：ノ
（イノシス弁、３３：逆流防止弁、３４：温水循環）＜
イパス通路、３５：自動給湯通路、３６：追焚“用水量
センサ。FIG. 1 is a schematic diagram showing an embodiment of the water heater with reheating function of the present invention, and FIG. 2 is a schematic diagram showing the construction of a conventional example. 1: Heat exchanger for hot water supply, 2: Heat exchanger for reheating, 3: Pump, 4: Bathtub, 11: Original solenoid valve, 12: Solenoid valve for hot water supply, 1
3: Proportional control valve, 14: Burner for hot water supply, 15: Solenoid valve for reheating, 16: Burner for reheating, 17: Water supply detection element, 18
: Hot water supply thermistor, 19: Circulating water detection element, 20: Reheating thermistor, 24: Hot water supply control valve, 29: Hot water supply water flow sensor, 30: Tank, 31: Tank opening/closing valve, 32: No (inosis valve, 33 : Backflow prevention valve, 34: Hot water circulation) <
Ipass passage, 35: Automatic hot water supply passage, 36: Reheating water amount sensor.

Claims (1)

【特許請求の範囲】[Claims] 給湯用熱交換器、浴槽と接続しポンプで温水循環する温
水循環通路の進焚用熱交換器、元電磁弁に直列接続した
比例制御弁、前記各熱交換器にのぞませた給湯用バーナ
と追焚用バーナの各々に、前記比例制御弁において、分
岐して接続した給湯用電磁弁および追焚用電磁弁、前記
給湯用熱交換器の出口に設けた給湯用サーミスタと追焚
用熱交換器の入口に設けた追焚用サーミスタ、前記給湯
用サーミスタの下流の給湯通路から分岐し浴槽への給湯
量をカウントする給湯水量センサ、前記給湯量センサの
下流に浴槽へ自動給湯するための給湯制御弁、前記給湯
制御弁から吐出する温水を蓄えるタンク、前記タンクと
温水循環通路を接続する自動給湯通路、前記タンクと温
水循環通路を開閉するタンク開閉弁、前記ポンプの下流
にポンプから吐出される水量をカウントする追焚用水量
センサ、前記温水循環通路と自動給湯通路の接続部より
上流側に設けた逆流防止弁、前記ポンプの前後に位置し
た追焚用水量センサの下流側と逆流防止弁の上流側とを
接続した温水循環バイパス通路、および前記温水循環バ
イパス通路を開閉するバイパス弁からなり、自動給湯時
には前記給湯制御弁を開弁し、前記タンク内に一定水量
が給水されたことを前記給湯用水量センサで検出し、前
記タンク開閉弁を開弁するとともにポンプを運転し、又
同時に逆流防止弁を閉弁し、バイパス弁を開弁すること
により、自動給湯運転時には温水循環通路の往き戻り管
の両方に流れるように構成し、又自動給湯量は給湯用水
量センサと追焚用水量センサの両方でカウントし、前記
各水量センサのカウント量が同一になるように給湯制御
弁で調整するよう構成して成る追焚機能付給湯機。A heat exchanger for hot water supply, a heat exchanger for heating the hot water circulation path that is connected to the bathtub and circulates hot water using a pump, a proportional control valve connected in series to the original solenoid valve, and a burner for hot water supply that looks into each of the heat exchangers. and a reheating burner, a solenoid valve for hot water supply and a solenoid valve for reheating that are branched and connected in the proportional control valve, a thermistor for hot water supply provided at the outlet of the heat exchanger for hot water supply, and a heat for reheating. A reheating thermistor provided at the entrance of the exchanger, a hot water flow sensor that branches from the hot water passage downstream of the hot water supply thermistor and counts the amount of hot water supplied to the bathtub, and a hot water supply flow sensor downstream of the hot water supply flow rate sensor for automatically supplying hot water to the bathtub. a hot water supply control valve, a tank that stores hot water discharged from the hot water supply control valve, an automatic hot water supply passage that connects the tank and the hot water circulation passage, a tank opening/closing valve that opens and closes the tank and the hot water circulation passage, and discharge from the pump downstream of the pump. A reheating water amount sensor that counts the amount of water being heated, a backflow prevention valve installed upstream from the connection between the hot water circulation passage and the automatic hot water supply passage, and a backflow downstream and backflow of the reheating water amount sensor located before and after the pump. It consists of a hot water circulation bypass passage connected to the upstream side of the prevention valve, and a bypass valve that opens and closes the hot water circulation bypass passage, and during automatic hot water supply, the hot water supply control valve is opened and a fixed amount of water is supplied into the tank. The hot water supply water amount sensor detects this, opens the tank on-off valve and operates the pump, and simultaneously closes the backflow prevention valve and opens the bypass valve, thereby preventing hot water circulation during automatic hot water supply operation. It is configured so that hot water flows into both the going and returning pipes of the passage, and the automatic hot water supply amount is counted by both the hot water supply water amount sensor and the reheating water amount sensor, and the hot water supply is controlled so that the counted amount of each water amount sensor is the same. A water heater with additional heating function configured to be adjusted using a valve.