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JPH0814654A - Apparatus for reheating operation for buthtab water - Google Patents

Apparatus for reheating operation for buthtab water

Info

Publication number
JPH0814654A
JPH0814654A JP6168741A JP16874194A JPH0814654A JP H0814654 A JPH0814654 A JP H0814654A JP 6168741 A JP6168741 A JP 6168741A JP 16874194 A JP16874194 A JP 16874194A JP H0814654 A JPH0814654 A JP H0814654A
Authority
JP
Japan
Prior art keywords
bath
temperature
heating
heat exchange
circulating water
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.)
Granted
Application number
JP6168741A
Other languages
Japanese (ja)
Other versions
JP3550733B2 (en
Inventor
Akihiro Yanada
晃宏 梁田
Hisato Kataoka
寿人 片岡
Nobuhiko Touei
亘彦 東影
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.)
Noritz Corp
Original Assignee
Noritz Corp
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 Noritz Corp filed Critical Noritz Corp
Priority to JP16874194A priority Critical patent/JP3550733B2/en
Publication of JPH0814654A publication Critical patent/JPH0814654A/en
Application granted granted Critical
Publication of JP3550733B2 publication Critical patent/JP3550733B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Control For Baths (AREA)

Abstract

PURPOSE:To control heating of circulating water and combustion and keep bath water temperature at a bath water set temperature by detecting temperature of the circulating water heated through a boiler. CONSTITUTION:A bath water temperature sensor 34 is disposed downstream of a boiler 20. The control carried out by a controller 50 when reheating operation is turned on consists of first driving only a circulating pump 32, detecting temperature T1 of unheated circulating water by the sensor 34, then starting heating by means of the boiler 20, then detecting temperature T2 of heated circulating water at early heating stage by means of the sensor 34 and calculating temperature rise (T2-T1) brought about by heating through the boiler 20 by using the temperatures T1 and T2. A value obtained by adding the temperature rise (T2-T1) to a bath set temperature TS is set as a heating stop target temperature TM, and heating of the boiler 20 is stopped when the sensor 34 has detected a temperature equal with the target temperature TM.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は風呂追い焚き運転装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath reheating operation device.

【0002】[0002]

【従来の技術】図3は従来の風呂追い焚き運転装置の例
を示す構成図である。図示しない浴槽の浴槽水を風呂戻
り管11を通して風呂追い焚き用熱交換缶体20に導いて加
熱し、更に風呂往き管12を通して浴槽に循環させるよう
になされている。前記風呂戻り管11と風呂往き管12とで
風呂追い焚き循環路を構成する。前記風呂戻り管11には
風呂水位センサ31、循環ポンプ32、水流スイッチ33が設
けられる他、浴槽温度を検出する風呂温度センサ34が設
けられている。また前記風呂追い焚き循環路の風呂戻り
管11には図示しない給湯器からの温水給湯路40が落とし
込み弁41を介して接続され、必要に応じて温水を浴槽内
に落とし込み給湯することができるようになされてい
る。風呂の追い焚き運転は、追い焚き運転スイッチがオ
ンされることで、循環ポンプ32が駆動され、これによっ
て水流スイッチ33がオンすると風呂追い焚き用熱交換缶
体20のバーナ21の燃焼が開始され、循環水の加熱が開始
される。そして運転中において前記風呂戻り管11側に設
けた風呂温度センサ34が風呂設定温度以上を検出する
と、バーナ21の燃焼を停止し、風呂追い焚き用熱交換缶
体20による加熱を終了するようになされていた。
2. Description of the Related Art FIG. 3 is a block diagram showing an example of a conventional bath reheating operation device. The bath water of a bath (not shown) is introduced into the bath reheating heat exchange can body 20 through the bath return pipe 11 to be heated, and is further circulated through the bath return pipe 12 to the bath. The bath return pipe 11 and the bath outflow pipe 12 constitute a bath reheating circulation path. The bath return pipe 11 is provided with a bath water level sensor 31, a circulation pump 32, a water flow switch 33, and a bath temperature sensor 34 for detecting the bath temperature. Further, a hot water supply passage 40 from a water heater (not shown) is connected to the bath return pipe 11 of the bath reheating circulation passage through a drop valve 41 so that hot water can be dropped into the bathtub to supply hot water as needed. Has been done. In the bath reheating operation, the circulation pump 32 is driven by turning on the reheating operation switch, and when the water flow switch 33 is turned on, the burner 21 of the bath reheating heat exchange can body 20 is started to burn. The heating of the circulating water is started. Then, when the bath temperature sensor 34 provided on the bath return pipe 11 side during operation detects a bath set temperature or higher, the combustion of the burner 21 is stopped, and the heating by the bath reheating heat exchange can body 20 is terminated. It was done.

【0003】[0003]

【発明が解決しようとする課題】ところが上記のよう
に、風呂温度センサ34を風呂戻り管11に配した場合は、
浴槽から循環してくる浴槽水の温度を検出しやすい反
面、風呂追い焚き用熱交換缶体20を通って加熱された循
環水の温度を検出できないので、例えば人が入浴してい
る場合に風呂追い焚きを通常時よりも緩やかに行うこと
ができるようにするマイルド追い焚きの機能を導入しよ
うとした場合、風呂追い焚き用熱交換缶体20によって加
熱される温水の加熱程度を細かく制御することができな
い問題があった。また前記風呂追い焚き用熱交換缶体20
に生じる水滴対策を行う場合に、風呂追い焚き用熱交換
缶体20のバーナ21による燃焼程度を調節するのに、風呂
追い焚き用熱交換缶体20を通って加熱される循環水の加
熱程度が判らないと燃焼程度の細かい調節もできないと
いう問題があった。一方、風呂温度センサ34を風呂往き
管12の方に配置すると、追い焚き運転中には風呂追い焚
き用熱交換缶体20に入る前の循環水の温度を測ることが
できないので、浴槽から風呂戻り管11に流れてくる浴槽
水の温度、即ち風呂温度を検出することができないとい
う問題があった。
However, when the bath temperature sensor 34 is arranged in the bath return pipe 11 as described above,
Although it is easy to detect the temperature of the bath water circulating from the bath, it is not possible to detect the temperature of the circulating water heated through the heat-exchange can 20 for bath reheating, so for example, when a person is bathing When trying to introduce a mild reheating function that allows reheating to be performed more slowly than usual, it is necessary to finely control the heating degree of the hot water heated by the heat exchange can body 20 for bath reheating. There was a problem that I could not. Further, the heat exchange can body 20 for reheating the bath
In order to control the water droplets that occur in the water, the degree of heating of the circulating water heated through the bath-exchanging heat exchange can 20 is adjusted to adjust the degree of combustion of the bath-exchanging heat-exchange can 20 by the burner 21. There was a problem in that it was not possible to make fine adjustments to the degree of combustion unless On the other hand, when the bath temperature sensor 34 is arranged toward the bath outflow pipe 12, the temperature of the circulating water before entering the bath reheating heat exchange can 20 cannot be measured during the reheating operation, so the bath temperature can be changed from the bathtub. There is a problem that the temperature of bath water flowing into the return pipe 11, that is, the bath temperature cannot be detected.

【0004】そこで、本発明は上記従来装置の欠点を解
消し、風呂温度センサ34を風呂追い焚き用熱交換缶体20
の下流である風呂往き管12に配置して、風呂追い焚き用
熱交換缶体20を通って加熱された循環水の温度を検出す
ることができるようにし、これによって循環水の加熱の
程度、即ち燃焼の程度の調節を可能にすることができる
ようにすると共に、風呂往き管12に配置した風呂温度セ
ンサ34を用いても風呂温度を風呂設定温度になるように
追い焚きを行うことができる風呂追い焚き運転装置の提
供を目的とする。
Therefore, the present invention solves the above-mentioned drawbacks of the conventional device and replaces the bath temperature sensor 34 with the heat exchange can body 20 for bath reheating.
The temperature of the circulating water heated through the bath reheating heat exchange can body 20 can be detected by arranging it in the bath outflow pipe 12 which is the downstream side of the bath. That is, the degree of combustion can be adjusted, and the bath temperature sensor 34 disposed in the bath outflow pipe 12 can be used to reheat the bath temperature to the bath set temperature. The purpose is to provide a bath reheating operation device.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するた
め、本発明の風呂追い焚き運転装置は、浴槽水を風呂戻
り管を通して風呂追い焚き用熱交換缶体に導いて加熱
し、更に風呂往き管を通して浴槽に循環させるようにし
た風呂追い焚き運転装置であって、前記風呂追い焚き用
熱交換缶体よりも下流側にある風呂往き管に風呂温度セ
ンサを配置することで、風呂追い焚き用熱交換缶体で加
熱された温水温度を検出することができるようにすると
共に、風呂追い焚き運転がオンされた場合のコントロー
ラの制御構成として、先ず循環ポンプだけを駆動して未
加熱状態の循環水温度T1 を前記風呂温度センサで検出
した後、前記風呂追い焚き用熱交換缶体による加熱を開
始すると共に加熱開始初期の既加熱状態の循環水温度T
2 を前記風呂温度センサで検出し、この既加熱状態の循
環水温度T2 と前記未加熱状態の循環水温度T1 とから
風呂追い焚き用熱交換缶体によって加熱された上昇温度
(T2 −T1 )を演算すると共に加熱停止目標温度TM
として風呂設定温度TS に前記風呂追い焚き用熱交換缶
体による上昇温度(T2 −T1 )を加えた程度の値を設
定し、風呂温度センサが加熱停止目標温度TM を検出し
た時点で風呂追い焚き用熱交換缶体による加熱を停止さ
せる構成としたことを特徴としている。
In order to achieve the above object, the bath reheating operation apparatus of the present invention guides the bath water through the bath return pipe to the heat exchange can body for bath reheating and heats it, and then the bath retreat. A bath reheating operation device that circulates in a bathtub through a pipe, and by arranging a bath temperature sensor in a bath outflow pipe that is located downstream of the bath reheating heat exchange can body, In addition to being able to detect the temperature of the hot water heated by the heat exchange can, the controller control configuration when the bath reheating operation is turned on first drives only the circulation pump to circulate the unheated state. After the water temperature T 1 is detected by the bath temperature sensor, heating by the bath-exchanging heat exchange can body is started and the circulating water temperature T in an already heated state at the beginning of heating
2 is detected by the bath temperature sensor, and the rising temperature (T 2 ) heated by the bath-exchanging heat exchange can from the circulating water temperature T 2 in the preheated state and the circulating water temperature T 1 in the unheated state. -T 1 ) is calculated and heating stop target temperature T M
Is set to a value of the bath set temperature T S plus the temperature rise (T 2 −T 1 ) due to the bath reheating heat exchange can body, and when the bath temperature sensor detects the heating stop target temperature T M Is characterized in that the heating by the heat exchange can body for reheating the bath is stopped.

【0006】[0006]

【作用】上記本発明の特徴によれば、風呂追い焚き用熱
交換缶体よりも下流側にある風呂往き管側に風呂温度セ
ンサを配置することで、風呂追い焚き用熱交換缶体を通
って出てきた循環水の温度を確実に検出することができ
る。よって風呂追い焚き用熱交換缶体を通って加熱され
る循環水の微妙な加熱程度を調節、及び風呂追い焚き用
熱交換缶体のバーナの燃焼程度の微妙な調節が可能とな
り、マイルド追い焚きが可能となり、また風呂追い焚き
用熱交換缶体に生じる水滴の解消を図ることが可能とな
る。また一方、風呂追い焚き運転中においては、循環水
の加熱開始前の未加熱状態の循環水温度T1 と加熱開始
初期の既加熱状態の循環水温度T2 とを上手く測ること
で、循環水が追い焚き用熱交換缶体を1回通ることで加
熱上昇する温度、即ち循環水の上昇温度(T2 −T1
を得ることができる。この上昇温度(T2 −T1 )は追
い焚き運転中において変わらないとすれば、風呂温度が
風呂設定温度TS になった時には、風呂温度センサが検
出する温度は、風呂設定温度TS +上昇温度(T2 −T
1 )となると考えることができる。よって、加熱停止目
標温度TM として前記風呂設定温度TS に前記風呂追い
焚き用熱交換缶体による上昇温度(T2 −T1 )を加え
た程度の値を設定し、その加熱停止目標温度TM を風呂
温度センサが検出した時に加熱を停止することで、実質
上において風呂温度を風呂設定温度TS になるよう追い
焚きを行うことができるのである。
According to the features of the present invention described above, the bath temperature sensor is disposed on the bath outlet pipe side, which is located downstream of the bath reheating heat exchange can body, so that the bath reheating heat exchange can body is passed through. It is possible to reliably detect the temperature of circulating water that has come out. Therefore, it is possible to adjust the delicate heating degree of the circulating water that is heated through the bath-exchanging heat exchange can body and the delicate adjustment of the burner combustion degree of the bath-exchanging heat exchange can body. In addition, it is possible to eliminate water droplets generated in the heat exchange can body for bath reheating. On the other hand, during the bath reheating operation, the circulating water temperature T 1 in the unheated state before the start of heating of the circulating water and the circulating water temperature T 2 in the already heated state at the beginning of heating are measured well, and the heating temperature rises by passes once heat exchanger can bodies for reheating, i.e. the circulating water temperature increase (T 2 -T 1)
Can be obtained. If the temperature rise (T 2 −T 1 ) does not change during the reheating operation, when the bath temperature reaches the bath set temperature T S , the temperature detected by the bath temperature sensor is the bath set temperature T S + elevated temperature (T 2 -T
1 ) can be considered. Therefore, the heating stop target temperature T M is set to a value of the bath set temperature T S plus the temperature rise (T 2 −T 1 ) due to the bath reheating heat exchange can, and the heating stop target temperature is set. By stopping the heating when the bath temperature sensor detects T M , it is possible to virtually reheat the bath temperature to the bath set temperature T S.

【0007】[0007]

【実施例】図1は本発明の実施例を示す風呂追い焚き運
転装置の構成図で、図2は本発明装置のコントローラの
制御機構を説明するフローチャートである。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a bath reheating operation apparatus showing an embodiment of the present invention, and FIG.

【0008】図1において、追い焚き循環路の風呂戻り
管11を通して図示しない浴槽の浴槽水が風呂追い焚き用
熱交換缶体20に導かれ、加熱され、更に風呂往き管12を
通して浴槽に循環される。前記風呂戻り管11には風呂水
位センサ31、循環ポンプ32、水流スイッチ33が設けられ
ている。風呂戻り管11には図示しない給湯器からの温水
給湯路40が落とし込み弁41を介して接続され、必要に応
じて温水を浴槽内に落とし込み給湯することができるよ
うになされている。一方、本発明に係る実施例では風呂
往き管12側に風呂温度センサ34が設けられている。前記
風呂追い焚き用熱交換缶体20には燃焼量を切り換え調節
することができるバーナ21が設けられており、瞬間加熱
式の缶体20によって導入された循環水が加熱される。装
置全体の運転制御はマイコン内蔵のコントローラ50によ
って行われ、リモコン60からの指令や風呂水位センサ3
1、水流スイッチ33、風呂温度センサ34等の装置各部の
センサ類からの情報を入力し、所定のソフトウエアによ
って、演算、判定を行って、バーナ21、循環ポンプ32、
落とし込み弁41、その他の装置各部に所定の動作指令を
出力する。
In FIG. 1, bath water in a bathtub (not shown) is guided to a bath reheating heat exchange can body 20 through a bath return pipe 11 in the reheating circulation path, heated, and further circulated in the bathtub through a bath outward pipe 12. It The bath return pipe 11 is provided with a bath water level sensor 31, a circulation pump 32, and a water flow switch 33. A hot water supply passage 40 from a water heater (not shown) is connected to the bath return pipe 11 via a drop valve 41 so that hot water can be dropped into the bathtub to supply hot water as needed. On the other hand, in the embodiment according to the present invention, the bath temperature sensor 34 is provided on the bath outlet pipe 12 side. The bath-exchanging heat exchange can body 20 is provided with a burner 21 capable of switching and adjusting the combustion amount, and the circulating water introduced by the instant heating type can body 20 is heated. Operation control of the entire device is performed by the controller 50 with a built-in microcomputer, and commands from the remote controller 60 and bath water level sensor 3
1, input the information from the sensors of each part of the device such as the water flow switch 33, the bath temperature sensor 34, etc., perform the calculation and determination by the predetermined software, the burner 21, the circulation pump 32,
A predetermined operation command is output to the drop valve 41 and other parts of the device.

【0009】コントローラ50の保有する風呂の追い焚き
運転制御機構を図2のフローチャートを参照して説明す
る。今、追い焚き運転スイッチがオンされると、コント
ローラ50は先ず循環ポンプ32を駆動する(S1)。これ
によって水流スイッチ33がオンすると、コントローラ50
は風呂追い焚き用熱交換缶体20のバーナ21の燃焼を開始
しない状態、即ち風呂追い焚き用熱交換缶体20による循
環水の加熱を行わない状態で、浴槽水が風呂往き管12の
風呂温度センサ34に循環するのに十分な時間として予め
定めた一定時間を待って、前記風呂温度センサ34で循環
水温度Tを検出する(S2)。この温度Tを未だ追い焚
きが現実になされていない未加熱状態の循環水温度T1
として記憶する。
The bath reheating operation control mechanism possessed by the controller 50 will be described with reference to the flowchart of FIG. When the reheating operation switch is turned on, the controller 50 first drives the circulation pump 32 (S1). When the water flow switch 33 is turned on by this, the controller 50
Is a state in which the burner 21 of the bath-exchanging heat exchange can body 20 is not started to burn, that is, the circulating water is not heated by the bath-exchanging heat exchange can body 20, and the bath water is the bath of the bath outflow pipe 12. The circulating water temperature T is detected by the bath temperature sensor 34 after waiting a predetermined time as a time sufficient for circulation to the temperature sensor 34 (S2). This temperature T is the circulating water temperature T 1 in an unheated state where reheating is not actually done yet.
Memorize as.

【0010】未加熱状態の循環水温度T1 を検出した
後、コントローラ50は風呂追い焚き用熱交換缶体20のバ
ーナ21の燃焼を開始する(S3)。バーナ21の燃焼開始
により浴槽からの循環水の加熱が開始される。そしてコ
ントローラ50は燃焼開始による循環水の加熱開始初期に
おいて、風呂温度センサ34により循環水温度Tを再度検
出する(S4)。前記加熱開始初期においては、未だ加
熱がなされていない浴槽水が浴槽から風呂戻り管11を通
って風呂追い焚き用熱交換缶体20に入り、そこで初めて
加熱されて風呂往き管12に流れて行くという状態にあ
り、従ってそのような状態において風呂温度センサ34が
検出した循環水温度Tを加熱開始初期の既加熱状態の循
環水温度T2 として検出することで、循環水が風呂追い
焚き用熱交換缶体20を通ることによる温度上昇度合いを
得ることができるのである。即ち加熱開始初期とは、未
だ加熱のなされていない浴槽水が缶体20を通って初めて
加熱される状態にある期間をいうことになる。前記温度
2 を検出すると、コントローラ50は前記検出した加熱
開始初期の既加熱状態の循環水温度T2 と先に検出して
いる未加熱状態の循環水温度T1 とから風呂追い焚き用
熱交換缶体20による上昇温度(T2 −T1 )を演算する
(S5)。
After detecting the circulating water temperature T 1 in the unheated state, the controller 50 starts burning the burner 21 of the bath-exchanging heat exchange can body 20 (S3). When the burner 21 starts burning, heating of the circulating water from the bathtub is started. Then, the controller 50 detects the circulating water temperature T again by the bath temperature sensor 34 at the beginning of heating the circulating water by the start of combustion (S4). In the initial stage of the heating start, the bath water which has not been heated yet passes from the bathtub through the bath return pipe 11 and enters the bath reheating heat exchange can body 20 where it is heated and flows into the bath outflow pipe 12 for the first time. Therefore, in such a state, the circulating water temperature T detected by the bath temperature sensor 34 is detected as the circulating water temperature T 2 in the already heated state at the beginning of heating, whereby the circulating water is heated by the bath heating heat. It is possible to obtain the degree of temperature rise due to passing through the exchange can body 20. That is, the beginning of heating means a period in which the bath water which has not been heated yet is in a state of being heated only after passing through the can body 20. When the temperature T 2 is detected, the controller 50 uses the detected circulating water temperature T 2 in the heated state at the beginning of heating and the previously detected circulating water temperature T 1 in the unheated state to heat the bath heating heat. increase due exchanger boiler body 20 the temperature (T 2 -T 1) calculates the (S5).

【0011】前記上昇温度(T2 −T1 )が演算される
と、コントローラ50は更に風呂追い焚き用熱交換缶体20
による加熱を停止する加熱停止目標温度TM を次の式1
で演算する(S6)。
When the temperature rise (T 2 -T 1 ) is calculated, the controller 50 further causes the bath reheating heat exchange can body 20.
The heating stop target temperature T M for stopping the heating by
Is calculated (S6).

【0012】 TM =TS +k(T2 −T1 ) ・・・式1 ここでTM :加熱停止目標温度 TS :風呂設定温度 (T2 −T1 ):上昇温度 k:係数T M = T S + k (T 2 −T 1 ) ... Equation 1 where T M : heating stop target temperature T S : bath set temperature (T 2 −T 1 ): rising temperature k: coefficient

【0013】前記式1において、風呂追い焚き用熱交換
缶体20による上昇温度(T2 −T1)が追い焚き運転中
において変わらないとすれば、風呂温度が風呂設定温度
Sになった時には、風呂温度センサが検出する温度
は、風呂設定温度TS +上昇温度(T2 −T1 )となる
と考えることができる。よって、加熱停止目標温度TM
として前記風呂設定温度TS に前記風呂追い焚き用熱交
換缶体による上昇温度(T2 −T1 )を加えた値を基本
的に設定することができるが、風呂追い焚き用熱交換缶
体20へ導入される循環水の温度(入水温度)による吸熱
率の変化やその他の要因を考慮して、係数kを上昇率
(T2 −T1 )に掛けた値を風呂設定温度TS に加えて
加熱停止目標温度TM を設定している。この係数kは予
め、実験によって1に近い値として得ておく。
In the above formula 1, if the temperature rise (T 2 -T 1 ) by the bath reheating heat exchange can 20 does not change during the reheating operation, the bath temperature becomes the bath set temperature T S. At times, the temperature detected by the bath temperature sensor can be considered to be the bath set temperature T S + increased temperature (T 2 −T 1 ). Therefore, the heating stop target temperature T M
As the bath setting temperature T S , a value obtained by adding the temperature rise (T 2 −T 1 ) due to the bath-exchanging heat exchange can can be basically set as the bath setting temperature T S. Taking into consideration the change in the heat absorption rate due to the temperature of the circulating water introduced to 20 (inlet temperature) and other factors, the value obtained by multiplying the rate of rise (T 2 −T 1 ) by the coefficient k is used as the bath set temperature T S. In addition, the heating stop target temperature T M is set. This coefficient k is previously obtained as a value close to 1 by an experiment.

【0014】前記加熱停止目標温度TM を演算した後、
コントローラ50は風呂温度センサ34が検出する循環水温
度Tが前記加熱停止目標温度TM 以上になるか否かを監
視し(S7)、未満の間(S7でノー)はバーナ21の燃
焼による循環水の加熱を続け、以上(S7でイエス)に
なった時点でバーナ21の燃焼を停止(オフ)する(S
8)。そしてバーナ21の燃焼停止により風呂追い焚き用
熱交換缶体20による加熱がなされなくなるので、その時
点でコントローラ50は再度風呂温度センサ34の検出する
温度Tが風呂設定温度TS 以上になっているか否かを確
認し(S9)、以上(S9でイエス)であれば循環ポン
プ32を停止(オフ)して追い焚き運転を終了する(S1
0)。もし未満(S9でノー)の場合には、バーナ21を
再燃焼させ(S11)、ステップS7に戻る。この場合、
再燃焼による多少の継続時間を確保するようにする。
After calculating the heating stop target temperature T M ,
The controller 50 monitors whether or not the circulating water temperature T detected by the bath temperature sensor 34 becomes equal to or higher than the heating stop target temperature T M (S7), and while it is less than (NO in S7), circulation by burner 21 combustion. Continue heating the water, and stop burning (burn off) the burner 21 (S7).
8). Then, the combustion by the burner 21 is stopped, so that the heating by the bath-exchanging heat exchange can 20 is no longer performed. At that time, therefore, the controller 50 again determines whether the temperature T detected by the bath temperature sensor 34 is equal to or higher than the bath set temperature T S. Whether or not it is confirmed (S9), if it is above (Yes in S9), the circulation pump 32 is stopped (turned off) and the reheating operation is finished (S1).
0). If less (NO in S9), the burner 21 is reburned (S11), and the process returns to step S7. in this case,
Try to secure some duration due to reburning.

【0015】[0015]

【発明の効果】本発明は以上の構成、作用よりなり、請
求項1に記載の風呂追い焚き運転装置によれば、風呂追
い焚き用熱交換缶体よりも下流側にある風呂往き管に風
呂温度センサを配置することで、風呂追い焚き用熱交換
缶体で加熱された温水温度を検出することができるよう
にしたので、これによって循環水の加熱の程度を調節す
ることが可能となり、例えば人が入浴している場合に風
呂追い焚きを通常時よりも緩やかに行うことができるよ
うにするマイルド追い焚きの機能を導入することができ
る。また風呂追い焚き用熱交換缶体でのドレンの発生を
抑制するのに好適な出湯温度への調節やバーナ燃焼の調
節等が可能となる。また風呂追い焚き用熱交換缶体によ
る上昇温度(T2 −T1 )や加熱停止目標温度TM を得
るようにコントローラの制御機構を構成したので、風呂
往き管側に風呂温度センサを配置しても、更に別の温度
センサを付加することなく、風呂温度を風呂設定温度に
なるように追い焚き運転を行うことができる。
According to the bath reheating operation device of the first aspect of the present invention, the bath reheating operation apparatus according to the first aspect of the invention has a bath discharge pipe located downstream of the bath reheating heat exchange can body. By arranging the temperature sensor, it is possible to detect the temperature of the hot water heated by the bath-exchanging heat exchange can body, which makes it possible to adjust the degree of heating of the circulating water. When a person is taking a bath, it is possible to introduce a mild reheating function that allows the bath to be reheated more slowly than usual. In addition, it is possible to adjust the hot water temperature suitable for suppressing the generation of drainage in the heat exchange can body for bath reheating and the burner combustion. Further, since the controller control mechanism is configured to obtain the temperature rise (T 2 −T 1 ) and the heating stop target temperature T M by the bath reheating heat exchange can body, the bath temperature sensor is arranged on the bath outlet pipe side. However, the reheating operation can be performed so that the bath temperature becomes the bath set temperature without adding another temperature sensor.

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

【図1】本発明の実施例を示す風呂追い焚き運転装置の
構成図である。
FIG. 1 is a configuration diagram of a bath reheating operation device according to an embodiment of the present invention.

【図2】本発明装置のコントローラの制御機構を説明す
るフローチャートである。
FIG. 2 is a flowchart illustrating a control mechanism of a controller of the device of the present invention.

【図3】従来装置を示す構成図である。FIG. 3 is a configuration diagram showing a conventional device.

【符号の説明】[Explanation of symbols]

11 風呂戻り管 12 風呂往き管 20 風呂追い焚き用熱交換缶体 21 バーナ 32 循環ポンプ 34 風呂温度センサ 50 コントローラ 11 Bath return pipe 12 Bath outflow pipe 20 Heat exchange can body for bath reheating 21 Burner 32 Circulation pump 34 Bath temperature sensor 50 Controller

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 浴槽水を風呂戻り管を通して風呂追い焚
き用熱交換缶体に導いて加熱し、更に風呂往き管を通し
て浴槽に循環させるようにした風呂追い焚き運転装置で
あって、前記風呂追い焚き用熱交換缶体よりも下流側に
ある風呂往き管に風呂温度センサを配置することで、風
呂追い焚き用熱交換缶体で加熱された温水温度を検出す
ることができるようにすると共に、風呂追い焚き運転が
オンされた場合のコントローラの制御構成として、先ず
循環ポンプだけを駆動して未加熱状態の循環水温度T1
を前記風呂温度センサで検出した後、前記風呂追い焚き
用熱交換缶体による加熱を開始すると共に加熱開始初期
の既加熱状態の循環水温度T2 を前記風呂温度センサで
検出し、この既加熱状態の循環水温度T2 と前記未加熱
状態の循環水温度T1 とから風呂追い焚き用熱交換缶体
によって加熱された上昇温度(T2 −T1 )を演算する
と共に加熱停止目標温度TM として風呂設定温度TS
前記風呂追い焚き用熱交換缶体による上昇温度(T2
1 )を加えた程度の値を設定し、風呂温度センサが加
熱停止目標温度TM を検出した時点で風呂追い焚き用熱
交換缶体による加熱を停止させる構成としたことを特徴
とする風呂追い焚き運転装置。
1. A bath reheating operation device configured to guide bathtub water through a bath return pipe to a bath reheating heat exchange can body for heating, and further to circulate it in a bath through a bath retreating pipe. By arranging a bath temperature sensor in the bath outflow pipe located on the downstream side of the heating heat exchange can body for heating, it becomes possible to detect the temperature of hot water heated by the heat exchange can body for bath heating As the control configuration of the controller when the bath reheating operation is turned on, first, only the circulation pump is driven to circulate the temperature T 1 of the circulating water in an unheated state.
After the temperature is detected by the bath temperature sensor, the heating by the bath-exchanging heat exchange can body is started, and the circulating water temperature T 2 in the already heated state at the beginning of heating is detected by the bath temperature sensor, From the circulating water temperature T 2 in the state and the circulating water temperature T 1 in the unheated state, the rising temperature (T 2 −T 1 ) heated by the bath-exchanging heat exchange can is calculated, and the heating stop target temperature T is calculated. As the bath set temperature T S as M , the temperature rise (T 2
T 1 ) is set to a value, and when the bath temperature sensor detects the heating stop target temperature T M , the heating by the bath-exchanging heat exchange can body is stopped. Reheating operation device.
JP16874194A 1994-06-27 1994-06-27 Bath reheating unit Expired - Fee Related JP3550733B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16874194A JP3550733B2 (en) 1994-06-27 1994-06-27 Bath reheating unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16874194A JP3550733B2 (en) 1994-06-27 1994-06-27 Bath reheating unit

Publications (2)

Publication Number Publication Date
JPH0814654A true JPH0814654A (en) 1996-01-19
JP3550733B2 JP3550733B2 (en) 2004-08-04

Family

ID=15873559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16874194A Expired - Fee Related JP3550733B2 (en) 1994-06-27 1994-06-27 Bath reheating unit

Country Status (1)

Country Link
JP (1) JP3550733B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1093299C (en) * 1995-05-11 2002-10-23 世雅企业股份有限公司 Image processing apparatus and image processing method
JP2020106183A (en) * 2018-12-27 2020-07-09 三菱電機株式会社 Hot water supply device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1093299C (en) * 1995-05-11 2002-10-23 世雅企业股份有限公司 Image processing apparatus and image processing method
JP2020106183A (en) * 2018-12-27 2020-07-09 三菱電機株式会社 Hot water supply device

Also Published As

Publication number Publication date
JP3550733B2 (en) 2004-08-04

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