JP2018204862A - Bath water heater - Google Patents

Bath water heater Download PDF

Info

Publication number
JP2018204862A
JP2018204862A JP2017110333A JP2017110333A JP2018204862A JP 2018204862 A JP2018204862 A JP 2018204862A JP 2017110333 A JP2017110333 A JP 2017110333A JP 2017110333 A JP2017110333 A JP 2017110333A JP 2018204862 A JP2018204862 A JP 2018204862A
Authority
JP
Japan
Prior art keywords
bath
hot water
water supply
side burner
heat exchanger
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.)
Pending
Application number
JP2017110333A
Other languages
Japanese (ja)
Inventor
悟 中川
Satoru Nakagawa
悟 中川
中西　渉
Wataru Nakanishi
渉 中西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paloma Co Ltd
Original Assignee
Paloma Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Paloma Co Ltd filed Critical Paloma Co Ltd
Priority to JP2017110333A priority Critical patent/JP2018204862A/en
Publication of JP2018204862A publication Critical patent/JP2018204862A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Control For Baths (AREA)

Abstract

To ensure carrying out bath reheating while being capable of setting the amount of ignition water of the reheating firing of the bath low.SOLUTION: When pushing the reheating switch, the controller detects a hot water temperature in a bath circulation path at S1; and sets the capacity of the bath side burner according to the detected hot water temperature at S2. The setting of this capability may be a stepwise setting in which the low capacity (gas input small) is set if the hot water temperature is higher than a predetermined threshold and the high capacity (gas input large) if the hot water temperature is lower than the threshold. Then, the circulation pump is operated to circulate bathtub hot water at S3; when confirming the water switch-ON at S4; and the controller ignites the bath side burner with the capability set at S2 to start the reheating at S5. When confirming that the hot water temperature detected by the bath thermistor has reached the set temperature at S6, the bath side burner is stopped firing while the circulation pump is stopped to finish the reheating at S7.SELECTED DRAWING: Figure 2

Description

本発明は、給湯加熱部と風呂加熱部とを備えた風呂給湯器に関する。   The present invention relates to a bath water heater provided with a hot water heater and a bath heater.

従来、浴槽の湯水を加熱する機能を備えた風呂給湯器が広く実用に供されている。この風呂給湯器は、例えば特許文献１に開示されるように、給湯側熱交換器及び当該熱交換器を加熱する給湯側バーナを備えた給湯側燃焼室と、給湯側熱交換器を通過した湯を出湯する出湯管とを含んでなる給湯回路（給湯加熱部）と、風呂側熱交換器及び当該熱交換器を加熱する風呂側バーナを備えた風呂側燃焼室と、風呂側熱交換器と浴槽との間に接続される戻り配管及び往き配管とで、給湯回路と接続される循環経路を形成してなる風呂回路（風呂加熱部）と、を併設したものが知られている。風呂回路では、給湯回路から循環経路を介して浴槽に湯張りする他、ポンプによって浴槽の湯水を風呂側熱交換器との間で循環させながら風呂側バーナを燃焼させることで、浴槽の湯水を沸かし上げたり、追い焚きによって保温したりすることができるようになっている。   Conventionally, bath water heaters having a function of heating hot water in a bathtub have been widely used in practice. For example, as disclosed in Patent Document 1, this bath water heater has passed through a hot water supply side heat exchanger and a hot water supply side combustion chamber provided with a hot water supply side burner for heating the heat exchanger, and a hot water supply side heat exchanger. A hot water supply circuit (hot water supply heating unit) including a hot water discharge pipe for discharging hot water, a bath side combustion chamber having a bath side heat exchanger and a bath side burner for heating the heat exchanger, and a bath side heat exchanger A bath circuit (bath heating section) is known that is provided with a return pipe and a forward pipe connected between the tub and the bathtub and forming a circulation path connected to the hot water supply circuit. In the bath circuit, the hot water from the hot water supply circuit is filled in the bathtub through the circulation path, and the hot water in the bathtub is burned by burning the bath side burner while circulating the hot water in the bathtub with the heat exchanger in the bath. It can be heated up or kept warm by chasing.

特開２０１３−１７０７９４号公報JP 2013-170794 A

上記従来の風呂給湯器において、追い焚きは風呂側バーナの能力を固定して行っているため、循環経路を循環する浴槽の湯水の温度が高い場合でも、風呂側バーナが空焚きしないように、固定能力に合わせて点火水量を設定せざるを得なかった。
しかし、風呂給湯器の設置現場で、循環経路の配管が、指定した径よりも小径のものが使用されたり、浴槽と配管とを接続するバスアダプタに詰まりが生じたりして、風呂側バーナの点火水量が確保できない場合があり、結果、追い焚きができなかったり配管の交換を余儀なくされたりしてしまう。 In the above-described conventional bath water heater, the reheating is performed with the capacity of the bath-side burner fixed, so even if the temperature of the hot water in the bathtub circulating through the circulation path is high, the bath-side burner will not burn. I had to set the amount of ignition water according to the fixed capacity.
However, at the place where the bath water heater is installed, the piping of the circulation path is smaller than the specified diameter, or the bus adapter connecting the bathtub and piping is clogged, and the bath side burner In some cases, the amount of igniting water cannot be secured, and as a result, it is impossible to catch up or the piping must be replaced.

そこで、本発明は、風呂の追い焚きの点火水量を低く設定でき、確実に追い焚きを実行することができる風呂給湯器を提供することを目的としたものである。   Accordingly, an object of the present invention is to provide a bath water heater in which the amount of ignition water for reheating a bath can be set low and the reheating can be performed reliably.

上記目的を達成するために、請求項１に記載の発明は、給湯側バーナと、その給湯側バーナの燃焼排気によって内部を通過する水を加熱する給湯側熱交換器とを備えてなる給湯加熱部と、風呂側バーナと、風呂側バーナの燃焼排気によって内部を通過する湯水を加熱する風呂側熱交換器とを備え、風呂側熱交換器と浴槽との間に、給湯加熱部と接続される風呂循環経路を形成する風呂加熱部と、風呂循環経路の湯水の温度を検出する温度検出手段と、給湯側バーナ及び風呂側バーナの燃焼を制御すると共に、浴槽内の湯水の追い焚きを実行するコントローラと、を含んでなる風呂給湯器であって、
コントローラは、追い焚きの実行時には、温度検出手段による検出温度に応じて、風呂側バーナの燃焼能力を変更することを特徴とする。
請求項２に記載の発明は、請求項１の構成において、燃焼能力は、検出温度が高い場合には低く、検出温度が低い場合には高くなるように変更することを特徴とする。 In order to achieve the above object, the invention described in claim 1 is a hot water supply heating comprising a hot water supply side burner and a hot water supply side heat exchanger for heating water passing through the combustion exhaust of the hot water supply side burner. And a bath-side burner, and a bath-side heat exchanger that heats hot water passing through the combustion exhaust of the bath-side burner, and is connected to the hot-water heating unit between the bath-side heat exchanger and the bathtub. The bath heating section that forms the bath circulation path, the temperature detection means that detects the temperature of the hot water in the bath circulation path, the combustion of the hot water supply side burner and the bath side burner, and the replenishment of hot water in the bathtub A bath water heater comprising:
The controller is characterized by changing the combustion capacity of the bath-side burner according to the temperature detected by the temperature detecting means when the reheating is executed.
The invention according to claim 2 is characterized in that, in the configuration of claim 1, the combustion capacity is changed so as to be low when the detected temperature is high and high when the detected temperature is low.

請求項１に記載の発明によれば、温度検出手段による検出温度に応じて、風呂側バーナの燃焼能力を変更することで、風呂の追い焚きの点火水量を低く設定できる。よって、風呂循環経路の配管が、指定した径よりも小径のものが使用されたり、浴槽と配管とを接続するバスアダプタに詰まりが生じたりしても、確実に追い焚きを実行することができる。
請求項２に記載の発明によれば、請求項１の効果に加えて、燃焼能力は、検出温度が高い場合には低く、検出温度が低い場合には高くなるように変更するので、検出温度に応じて燃焼能力を段階的又は比例的に設定することができる。 According to the first aspect of the present invention, by changing the combustion capacity of the bath-side burner according to the temperature detected by the temperature detecting means, the amount of ignition water for reheating the bath can be set low. Therefore, even if the pipe of the bath circulation path has a smaller diameter than the specified diameter, or the bus adapter connecting the bathtub and the pipe is clogged, the reheating can be surely performed. .
According to the second aspect of the invention, in addition to the effect of the first aspect, the combustion capacity is changed to be low when the detection temperature is high and high when the detection temperature is low. The combustion capacity can be set stepwise or proportionally.

風呂給湯器の概略回路図である。It is a schematic circuit diagram of a bath water heater. 自動追い焚き運転のフローチャートである。It is a flowchart of an automatic chasing operation.

以下、本発明の実施の形態を図面に基づいて説明する。
図１は、風呂給湯器の概略回路図で、風呂給湯器１は、給湯側燃焼室４内に給湯側バーナ５，５・・と給湯側熱交換器としての一次熱交換器６及び二次熱交換器７とをそれぞれ備えて水道水を加熱し出湯させる給湯加熱部２と、風呂側燃焼室２０内に風呂側バーナ２１及び風呂側熱交換器２２を備えて風呂の追い炊き等に利用される風呂加熱部３とからなる。
まず給湯加熱部２において、二次熱交換器７の入口には、給湯水量センサ９を備えて上水道から水道水を供給する給水管８が接続され、二次熱交換器７の出口と一次熱交換器６の入口との間には、二次熱交換器７で加熱された湯を一次熱交換器６へ供給する連結管１０が接続されて、一次熱交換器６の出口に、給湯サーミスタ１２を備えて一次熱交換器で加熱された湯を出湯する出湯管１１が接続されている。１３は給湯栓である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic circuit diagram of a bath water heater. A bath water heater 1 includes a hot water supply side burners 5, 5... And a primary heat exchanger 6 and a secondary as a hot water supply side heat exchanger in a hot water supply side combustion chamber 4. A hot water supply heating unit 2 that heats and discharges tap water by providing a heat exchanger 7 and a bath side burner 21 and a bath side heat exchanger 22 in the bath side combustion chamber 20 are used for reheating the bath. The bath heating unit 3 is made up of.
First, in the hot water supply heating unit 2, a water supply pipe 8 that is provided with a hot water supply amount sensor 9 and supplies tap water from the water supply is connected to the inlet of the secondary heat exchanger 7, and the outlet of the secondary heat exchanger 7 and the primary heat are supplied. A connecting pipe 10 for supplying hot water heated by the secondary heat exchanger 7 to the primary heat exchanger 6 is connected between the inlet of the exchanger 6 and a hot water supply thermistor is connected to the outlet of the primary heat exchanger 6. 12 is connected to a hot water discharge pipe 11 for discharging hot water heated by the primary heat exchanger. 13 is a hot-water tap.

また、給湯側燃焼室４内において、一次熱交換器６は給湯側バーナ５の燃焼排気経路の上流側に、二次熱交換器７は燃焼排気経路の下流側にそれぞれ配設されて、伝熱管内の通水を燃焼排気と熱交換させるようになっている。給湯側バーナ５へのガスの供給を行うガス管１４には、上流側からガス元電磁弁１５、給湯ガス比例制御弁１６、各給湯バーナ５への分岐管ごとの給湯切替電磁弁１７，１７・・がそれぞれ設けられている。給湯側燃焼室４の下方には、燃焼用空気を各給湯側バーナ５及び風呂側バーナ２１へ供給するファン１８が設けられている。１９は点火用のイグナイタである。   In the hot water supply side combustion chamber 4, the primary heat exchanger 6 is disposed upstream of the combustion exhaust path of the hot water supply side burner 5, and the secondary heat exchanger 7 is disposed downstream of the combustion exhaust path, respectively. The water passing through the heat pipe is exchanged with the combustion exhaust. The gas pipe 14 that supplies gas to the hot water supply side burner 5 includes a gas source solenoid valve 15, a hot water supply gas proportional control valve 16 from the upstream side, and hot water supply switching solenoid valves 17 and 17 for each branch pipe to each hot water supply burner 5.・ ・ Are provided. Below the hot water supply side combustion chamber 4, a fan 18 that supplies combustion air to each hot water supply side burner 5 and the bath side burner 21 is provided. Reference numeral 19 denotes an ignition igniter.

一方、風呂加熱部３において、風呂側熱交換器２２と浴槽２３との間には、循環ポンプ２５及び、温度検出手段としての風呂サーミスタ２６を備えた戻り配管２４と、往き配管２７とが接続されている。但し、戻り配管２４は、器具外部で外部戻り配管２４ａを介して浴槽２３に接続され、往き配管２７は、器具外部で外部往き配管２７ａを介して浴槽２３に接続されている。
戻り配管２４には、出湯管１１から分岐されて給湯用電磁弁２９及び落とし込み水量センサ３０を備えた落とし込み管２８が接続され、落とし込み管２８に設けた給湯用電磁弁２９を開弁させることで、給湯加熱部２で加熱された湯を浴槽２３へ供給可能となっている。この風呂側熱交換器２２、戻り配管２４、外部戻り配管２４ａ、往き配管２７、外部往き配管２７ａとで、浴槽２３の湯水を循環させる風呂循環経路を形成している。戻り配管２４には、風呂循環経路の一定以上の水量でＯＮ動作する流水スイッチ３１が設けられている。 On the other hand, in the bath heating unit 3, a return pipe 24 provided with a circulation pump 25 and a bath thermistor 26 as temperature detecting means and an outgoing pipe 27 are connected between the bath-side heat exchanger 22 and the bathtub 23. Has been. However, the return pipe 24 is connected to the bathtub 23 via the external return pipe 24a outside the instrument, and the forward pipe 27 is connected to the bathtub 23 via the external forward pipe 27a outside the instrument.
The return pipe 24 is connected to a hot water supply electromagnetic valve 29 branched from the hot water discharge pipe 11 and a drop water pipe 28 having a drop water amount sensor 30, and the hot water supply electromagnetic valve 29 provided in the drop pipe 28 is opened. The hot water heated by the hot water supply heating unit 2 can be supplied to the bathtub 23. The bath-side heat exchanger 22, the return pipe 24, the external return pipe 24a, the forward pipe 27, and the external forward pipe 27a form a bath circulation path for circulating hot water in the bathtub 23. The return pipe 24 is provided with a running water switch 31 that is turned on when the amount of water in the bath circulation path exceeds a certain level.

また、風呂側バーナ２１に接続されるガス管１４からの分岐管には、切替電磁弁３２が設けられている。３３，３４は、落とし込み管２８において給湯用電磁弁２９の下流側に設けられた逆止弁で、戻り配管２４において、落とし込み管２８との接続部よりも上流側には、戻り配管２４を開閉可能な弁体を駆動させる制御モータ３５が設けられている。３６はコントローラ、３７は給湯リモコン、３８は風呂リモコンである。   A switching solenoid valve 32 is provided in the branch pipe from the gas pipe 14 connected to the bath-side burner 21. Reference numerals 33 and 34 are check valves provided downstream of the hot water solenoid valve 29 in the drop pipe 28. The return pipe 24 is opened and closed on the return pipe 24 upstream of the connection with the drop pipe 28. A control motor 35 is provided to drive the possible valve body. 36 is a controller, 37 is a hot water remote controller, and 38 is a bath remote controller.

以上の如く構成された風呂給湯器１においては、まず通常の給湯は以下の如くなされる。
出湯管１１に設けられた給湯栓１３が開栓されて器具内に通水され、その通水を給湯水量センサ９で検知すると、コントローラ３６は、ファン１８を所定時間回転させて、給湯側燃焼室４及び風呂側燃焼室２０内に貯留している燃焼排気を排出させる（プリパージ）。その後、ガス管１４のガス元電磁弁１５、各給湯切替電磁弁１７を開弁させ、給湯ガス比例制御弁１６を所定開度で開弁させて、各給湯側バーナ５へガスを供給すると共に、イグナイタ１９を作動させて給湯側バーナ５，５・・に点火する。 In the bath water heater 1 configured as described above, normal hot water supply is first performed as follows.
When the hot water tap 13 provided in the hot water discharge pipe 11 is opened and water is passed through the appliance, and the water flow is detected by the hot water supply amount sensor 9, the controller 36 rotates the fan 18 for a predetermined time to perform hot water side combustion. The combustion exhaust gas stored in the chamber 4 and the bath-side combustion chamber 20 is discharged (pre-purge). Thereafter, the gas source solenoid valve 15 and each hot water supply switching solenoid valve 17 of the gas pipe 14 are opened, the hot water supply gas proportional control valve 16 is opened at a predetermined opening, and gas is supplied to each hot water supply side burner 5. Then, the igniter 19 is operated to ignite the hot water supply side burners 5, 5.

すると、給湯側バーナ５の燃焼排気は、まず一次熱交換器６を通過して伝熱管の通水と熱交換した後、二次熱交換器７を通過して伝熱管の通水と熱交換して外部へ排出される。これにより、一次熱交換器６で顕熱が、二次熱交換器７で潜熱がそれぞれ回収されて加熱された湯が給湯栓１３から出湯される。   Then, the combustion exhaust of the hot water supply side burner 5 first passes through the primary heat exchanger 6 and exchanges heat with the water passing through the heat transfer tubes, and then passes through the secondary heat exchanger 7 and exchanges heat with the water passing through the heat transfer tubes. And discharged to the outside. As a result, sensible heat is recovered in the primary heat exchanger 6 and latent heat is recovered in the secondary heat exchanger 7, and heated hot water is discharged from the hot water tap 13.

コントローラ３６は、出湯管１１の給湯サーミスタ１２によって出湯温度を監視し、出湯温度が給湯リモコン３７又は風呂リモコン３８によって指示された設定温度となるように、給湯切替電磁弁１７の開閉制御と、給湯ガス比例制御弁１６の開度調整とを行うと共に、ファン１８の回転数制御によって空気量を連続的に変化させる。給湯栓１３を閉じると、給湯水量センサ９の信号停止を確認したコントローラ３６は、ガス元電磁弁１５及び給湯切替電磁弁１７を閉じて給湯バーナ５を消火させ、所定時間ファン１８を回転させてポストパージを行う。   The controller 36 monitors the hot water temperature with the hot water supply thermistor 12 of the hot water pipe 11 and controls the opening and closing of the hot water switching solenoid valve 17 so that the hot water temperature becomes the set temperature indicated by the hot water remote controller 37 or the bath remote controller 38. While adjusting the opening degree of the gas proportional control valve 16, the air amount is continuously changed by controlling the rotational speed of the fan 18. When the hot water tap 13 is closed, the controller 36 that has confirmed that the hot water quantity sensor 9 has stopped signaling closes the gas source solenoid valve 15 and the hot water supply switching solenoid valve 17 to extinguish the hot water burner 5 and rotate the fan 18 for a predetermined time. Perform post-purge.

そして、浴槽２３への湯張りは、給湯リモコン３７又は風呂リモコン３８に設けられた湯張りスイッチを押すと、コントローラ３６は、落とし込み管２８の給湯用電磁弁２９を開弁して給湯加熱部２に通水させる。給湯水量センサ９で検知される水量が点火水量に達したことを確認したら、コントローラ３６は、給湯側バーナ５を燃焼させ、出湯管１１からの湯を、落とし込み管２８及び戻り配管２４を介して浴槽２３に供給する。このとき制御モータ３５によって戻り配管２４の流路は開弁している。
落とし込み管２８に設けた落とし込み水量センサ３０で検出した水量が設定水量に達したことが確認されると、コントローラ３６は、給湯用電磁弁２９を閉じて通水を停止し、給湯側バーナ５を消火させて湯張りを終了する。 When the hot water filling to the bathtub 23 is performed, when a hot water filling switch provided on the hot water remote control 37 or the bath remote control 38 is pressed, the controller 36 opens the hot water electromagnetic valve 29 of the dropping pipe 28 to open the hot water heating unit 2. Let water through. When it is confirmed that the amount of water detected by the hot water supply water amount sensor 9 has reached the amount of ignition water, the controller 36 burns the hot water supply side burner 5 and supplies hot water from the hot water discharge pipe 11 via the dropping pipe 28 and the return pipe 24. Supply to bathtub 23. At this time, the flow path of the return pipe 24 is opened by the control motor 35.
When it is confirmed that the amount of water detected by the dropped water amount sensor 30 provided in the dropping pipe 28 has reached the set amount of water, the controller 36 closes the hot water supply electromagnetic valve 29 to stop water flow, and the hot water supply side burner 5 is turned off. Extinguish the fire and finish filling.

一方、コントローラ３６は、風呂リモコン３８に設けられた追い焚きスイッチを押すと、循環ポンプ２５を作動させて浴槽２３の湯を循環させ、風呂側バーナ２１を点火させて、設定温度まで自動的に追い焚きを行う。この自動追い焚き運転を図２のフローチャートに基づいて説明する。
追い焚きスイッチを押すと、コントローラ３６は、Ｓ１で、風呂サーミスタ２６により、風呂循環経路の湯温を検出する。Ｓ２で、検出した湯温に応じて風呂側バーナ２１の能力を設定する。この能力の設定は、湯温が所定の閾値より高ければ低能力（ガスインプット小）、当該閾値より低ければ高能力（ガスインプット大）とする段階的な設定や、予め設定した関数等により、湯温が高くなるに従って能力を徐々に低くする比例的な設定等が考えられる。これにより、追い焚き開始時の湯温が高いと風呂側バーナ２１の能力が低くなるため、点火水量（流水スイッチ３１がＯＮする水量）は従来よりも低く設定される。 On the other hand, when the controller 36 presses the reheating switch provided in the bath remote controller 38, the circulation pump 25 is operated to circulate hot water in the bathtub 23, the bath-side burner 21 is ignited, and automatically reaches the set temperature. Do a chasing. This automatic chasing operation will be described based on the flowchart of FIG.
When the reheating switch is pressed, the controller 36 detects the hot water temperature in the bath circulation path by the bath thermistor 26 in S1. In S2, the capability of the bath-side burner 21 is set according to the detected hot water temperature. This capacity setting is based on a step-by-step setting such as low capacity (small gas input) if the hot water temperature is higher than a predetermined threshold, high capacity (large gas input) if the temperature is lower than the threshold, A proportional setting that gradually lowers the capacity as the hot water temperature increases can be considered. Thereby, when the hot water temperature at the start of reheating is high, the ability of the bath-side burner 21 is lowered, so that the amount of ignition water (the amount of water that turns on the flowing water switch 31) is set lower than before.

次に、Ｓ３で、循環ポンプ２５を作動させて浴槽２３の湯を循環させ、Ｓ４で流水スイッチ３１のＯＮを確認すると、コントローラ３６は、Ｓ５で、Ｓ２で設定した能力で風呂側バーナ２１を点火させて追い焚きを開始する。
Ｓ６で、風呂サーミスタ２６で検出される湯温が設定温度に到達したことが確認されると、Ｓ７で、風呂側バーナ２１を消火させると共に、循環ポンプ２５を停止させて追い焚きを終了する。 Next, in S3, the circulating pump 25 is operated to circulate the hot water in the bathtub 23, and in S4, when the ON of the running water switch 31 is confirmed, the controller 36 turns the bath-side burner 21 with the ability set in S2 in S5. Ignite and start chasing.
When it is confirmed in S6 that the hot water temperature detected by the bath thermistor 26 has reached the set temperature, in S7, the bath-side burner 21 is extinguished and the circulation pump 25 is stopped to finish the reheating.

このように、上記形態の風呂給湯器１によれば、コントローラ３６は、追い焚きの実行時には、風呂サーミスタ２６による検出温度に応じて、風呂側バーナ２１の燃焼能力を変更することで、風呂の追い焚きの点火水量を低く設定できる。よって、風呂循環経路の外部戻り配管２４ａや外部往き配管２７ａが、指定した径よりも小径で使用されたり、浴槽２３と外部戻り配管２４ａ及び外部往き配管２７ａとを接続するバスアダプタに詰まりが生じたりしても、確実に追い焚きを実行することができる。
特にここでは、風呂側バーナ２１の燃焼能力は、風呂サーミスタ２６の検出温度が高い場合には低く、検出温度が低い場合には高くなるように変更するので、検出温度に応じて燃焼能力を段階的又は比例的に設定することができる。 Thus, according to the bath water heater 1 of the said form, the controller 36 changes the combustion capability of the bath side burner 21 according to the temperature detected by the bath thermistor 26 at the time of reheating, so that the bath It is possible to set the amount of sparkling water to be low. Therefore, the external return pipe 24a and the external forward pipe 27a of the bath circulation path are used with a diameter smaller than the specified diameter, or the bus adapter connecting the bathtub 23 to the external return pipe 24a and the external forward pipe 27a is clogged. Even if it is, it is possible to carry out the revocation reliably.
Particularly, here, the combustion capacity of the bath-side burner 21 is changed so as to be low when the detection temperature of the bath thermistor 26 is high and high when the detection temperature is low. Or proportionally.

なお、上記形態では、風呂循環経路の湯温に応じた風呂側バーナの燃焼能力の設定を二段階で行う場合を例示しているが、二段階に限らず、閾値を複数設定して三段階以上で能力を設定しても差し支えない。また、風呂側バーナの燃焼能力も、ガスインプットの変更に限らず、給湯側バーナのように複数段ある場合は段数の変更によって燃焼能力を変更することもできる。
その他、上記形態では、給湯加熱部に給湯側熱交換器として一次熱交換器と二次熱交換器とを備えているが、二次熱交換器がなく、一次熱交換器のみ備える給湯加熱部であっても差し支えない。風呂加熱部においても、風呂側熱交換器として一次熱交換器と二次熱交換器とを備えるものであってもよい。 In the above embodiment, the setting of the combustion capacity of the bath-side burner according to the hot water temperature of the bath circulation path is illustrated in two stages. However, the present invention is not limited to two stages, and a plurality of threshold values are set to three stages. The ability can be set as described above. Further, the combustion capacity of the bath-side burner is not limited to the change of gas input, and when there are a plurality of stages such as a hot water supply-side burner, the combustion capacity can be changed by changing the number of stages.
In addition, in the said form, although the hot water supply heating part is equipped with the primary heat exchanger and the secondary heat exchanger as a hot water supply side heat exchanger, there is no secondary heat exchanger and the hot water supply heating part provided only with a primary heat exchanger It doesn't matter. The bath heating unit may also include a primary heat exchanger and a secondary heat exchanger as the bath-side heat exchanger.

１・・風呂給湯器、２・・給湯加熱部、３・・風呂加熱部、４・・給湯側燃焼室、５・・給湯側バーナ、６・・一次熱交換器、７・・二次熱交換器、８・・給水管、１１・・出湯管、２０・・風呂側燃焼室、２１・・風呂側バーナ、２２・・風呂側熱交換器、２３・・浴槽、２４・・戻り配管、２４ａ・・外部戻り配管、２５・・循環ポンプ、２６・・風呂サーミスタ、２７・・往き配管、２７ａ・・外部往き配管、３１・・流水スイッチ、３６・・コントローラ、３７・・給湯リモコン、３８・・風呂リモコン。   1 .... Bath water heater, 2 .... Hot water heater, 3 .... Bath heater, 4 .... Hot water combustion chamber, 5 .... Hot water heater, 6 .... Primary heat exchanger, 7 .... Secondary heat Exchanger, 8 ·· Water supply pipe, 11 ·· Tap pipe, 20 ·· Bath side combustion chamber, 21 ·· Bath side burner, 22 ·· Bath side heat exchanger, 23 ·· Bath, 24 ·· Return pipe, 24a ... external return pipe, 25 ... circulation pump, 26 ... bath thermistor, 27 ... outward piping, 27a ... outward piping, 31 ... flow water switch, 36 ... controller, 37 ... hot water remote control, 38・ ・ Bathroom remote control.

Claims (2)

給湯側バーナと、その給湯側バーナの燃焼排気によって内部を通過する水を加熱する給湯側熱交換器とを備えてなる給湯加熱部と、
風呂側バーナと、前記風呂側バーナの燃焼排気によって内部を通過する湯水を加熱する風呂側熱交換器とを備え、前記風呂側熱交換器と浴槽との間に、前記給湯加熱部と接続される風呂循環経路を形成する風呂加熱部と、
前記風呂循環経路の湯水の温度を検出する温度検出手段と、
前記給湯側バーナ及び前記風呂側バーナの燃焼を制御すると共に、前記浴槽内の湯水の追い焚きを実行するコントローラと、を含んでなる風呂給湯器であって、
前記コントローラは、前記追い焚きの実行時には、前記温度検出手段による検出温度に応じて、前記風呂側バーナの燃焼能力を変更することを特徴とする風呂給湯器。 A hot water supply heating unit comprising a hot water supply side burner and a hot water supply side heat exchanger for heating water passing through the combustion exhaust of the hot water supply side burner;
A bath-side burner, and a bath-side heat exchanger that heats hot water passing through the inside by combustion exhaust of the bath-side burner, and is connected to the hot-water supply heating unit between the bath-side heat exchanger and the bathtub. A bath heating unit that forms a bath circulation path;
Temperature detecting means for detecting the temperature of hot water in the bath circulation path;
A controller for controlling the combustion of the hot water supply side burner and the bath side burner, and for replenishing hot water in the bathtub, and a bath water heater comprising:
The controller is configured to change the combustion capacity of the bath-side burner according to the temperature detected by the temperature detection means when the reheating is performed. 前記燃焼能力は、前記検出温度が高い場合には低く、前記検出温度が低い場合には高くなるように変更することを特徴とする請求項１に記載の風呂給湯器。   The bath water heater according to claim 1, wherein the combustion capacity is changed so as to be low when the detected temperature is high and high when the detected temperature is low.
JP2017110333A 2017-06-02 2017-06-02 Bath water heater Pending JP2018204862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017110333A JP2018204862A (en) 2017-06-02 2017-06-02 Bath water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017110333A JP2018204862A (en) 2017-06-02 2017-06-02 Bath water heater

Publications (1)

Publication Number Publication Date
JP2018204862A true JP2018204862A (en) 2018-12-27

Family

ID=64956850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017110333A Pending JP2018204862A (en) 2017-06-02 2017-06-02 Bath water heater

Country Status (1)

Country Link
JP (1) JP2018204862A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0233003Y2 (en) * 1984-01-30 1990-09-06
JPH08128721A (en) * 1994-10-28 1996-05-21 Noritz Corp Automatic bath apparatus
JPH09217960A (en) * 1996-02-09 1997-08-19 Gastar Corp Composite hot-water supply device
JP2002048391A (en) * 2000-08-04 2002-02-15 Paloma Ind Ltd Bath system
JP2003194404A (en) * 2001-12-26 2003-07-09 Rinnai Corp Flow type water heater
JP2004361044A (en) * 2003-06-06 2004-12-24 Takagi Ind Co Ltd Hot-water supply/reheating device
JP2006284026A (en) * 2005-03-31 2006-10-19 Rinnai Corp Bath reheating device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0233003Y2 (en) * 1984-01-30 1990-09-06
JPH08128721A (en) * 1994-10-28 1996-05-21 Noritz Corp Automatic bath apparatus
JPH09217960A (en) * 1996-02-09 1997-08-19 Gastar Corp Composite hot-water supply device
JP2002048391A (en) * 2000-08-04 2002-02-15 Paloma Ind Ltd Bath system
JP2003194404A (en) * 2001-12-26 2003-07-09 Rinnai Corp Flow type water heater
JP2004361044A (en) * 2003-06-06 2004-12-24 Takagi Ind Co Ltd Hot-water supply/reheating device
JP2006284026A (en) * 2005-03-31 2006-10-19 Rinnai Corp Bath reheating device

Similar Documents

Publication Publication Date Title
EP3150937A1 (en) Gas water heating appliance with pre-heating function
US10619889B2 (en) Water heater
JP2007263403A (en) Circulation type hot water supply device
JP2021101148A (en) Bath hot water supply unit
JP5454914B2 (en) Water heater
JP5137311B2 (en) Water heater
JP2018204862A (en) Bath water heater
JP2019095160A (en) Water heater
JP6667365B2 (en) Water heater
JP3876877B2 (en) Gas hot water heater
JP5143810B2 (en) Bath device with automatic water heater
JP2019015426A (en) Water heater
JP7426083B2 (en) hot water system
JP2018123984A (en) Water heater
JP7126671B2 (en) Water heater
JP2023160430A (en) Hot water supply and space heating heat source machine
US10436477B2 (en) Water heater
JP2019066126A (en) Bath water heater
JP5970529B2 (en) Water heater
JP5914280B2 (en) Water heater
JP2015222137A (en) Heating heat source apparatus
JP4231454B2 (en) Combined combustion device
JP2024090834A (en) Water heater
JP2022142540A (en) Water heater
JP2019045085A (en) Water heater

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20200520

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20210127

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210202

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210323

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210518

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210712

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20210831