JP2556788B2 - Water heater - Google Patents
Water heaterInfo
- Publication number
- JP2556788B2 JP2556788B2 JP3315499A JP31549991A JP2556788B2 JP 2556788 B2 JP2556788 B2 JP 2556788B2 JP 3315499 A JP3315499 A JP 3315499A JP 31549991 A JP31549991 A JP 31549991A JP 2556788 B2 JP2556788 B2 JP 2556788B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water supply
- supply passage
- passage
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 406
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000008236 heating water Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Description
【０００１】[0001]
【産業上の利用分野】この発明は、給湯装置に関し、詳
しくは、浴槽への追焚給湯中に一般給湯の割込みがあっ
たときに、運転条件にかかわらず、追焚給湯と一般給湯
を同時に行うことが可能で、かつ、一般給湯側のオーバ
ーシュートやアンダーシュートを防止して、所定の温度
で給湯することが可能な給湯装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply device, and more particularly, when a hot water supply to a bathtub is interrupted during the hot water supply to the hot tub, the hot water supply and the normal hot water supply are performed simultaneously regardless of operating conditions. The present invention relates to a hot water supply apparatus that can perform hot water supply and that can prevent overshoot and undershoot on the general hot water supply side and can supply hot water at a predetermined temperature.
【０００２】[0002]
【従来の技術】従来の、給湯装置としては、例えば、図
２に示すような構成を有する給湯装置が知られている。2. Description of the Related Art As a conventional hot water supply device, for example, a hot water supply device having a structure as shown in FIG. 2 is known.
【０００３】この給湯装置において、水加熱用熱交換器
５２に接続された給水路５１には、水量センサ６５，入
水サーミスタ６６が配設されており、また、水加熱用熱
交換器５２の出口側には加熱された温水の通路となる給
湯路５３が接続されている。給湯路５３には出湯サーミ
スタ６３が配設されており、この給湯路５３は、浴槽用
給湯路５４と台所などへの一般給湯路５５に分岐してい
る。そして、浴槽用給湯路５４には、閉止機能付水量調
節弁５６及び逆止弁付真空破壊弁（バキュームブレー
カ）５７が配設されている。また、一般給湯路５５に
は、給湯水流スイッチ６０、サーミスタ６１が配設され
ており、その出口側は給湯栓５８（カラン）に接続され
ている。さらに、水加熱用熱交換器５２に水を供給する
給水路５１からは、バイパス路５９が分岐して一般給湯
路５５に接続されており、一般給湯路５５とバイパス路
５９の接続箇所にはミキシングバルブ６２が配設されて
いる。なお、図２において、６７は逆止弁である。In this hot water supply device, a water amount sensor 65 and a water input thermistor 66 are provided in a water supply passage 51 connected to the water heating heat exchanger 52, and the outlet of the water heating heat exchanger 52 is provided. A hot water supply passage 53 that serves as a passage for heated hot water is connected to the side. A hot water supply thermistor 63 is arranged in the hot water supply passage 53, and the hot water supply passage 53 is branched into a hot water supply passage 54 for a bathtub and a general hot water supply passage 55 for a kitchen or the like. The bath hot water supply passage 54 is provided with a water quantity control valve 56 with a closing function and a vacuum breaking valve (vacuum breaker) 57 with a check valve. Further, a hot water supply water flow switch 60 and a thermistor 61 are arranged in the general hot water supply passage 55, and the outlet side thereof is connected to a hot water supply plug 58 (calant). Further, from the water supply passage 51 that supplies water to the water heating heat exchanger 52, a bypass passage 59 is branched and connected to the general hot water supply passage 55, and the general hot water supply passage 55 and the bypass passage 59 are connected to each other. A mixing valve 62 is provided. In FIG. 2, 67 is a check valve.
【０００４】上記のように構成された給湯装置におい
て、台所などに一般給湯する場合、水加熱用熱交換器５
２で加熱された温水は、ミキシングバルブ６２において
水量調節され、一般給湯路５５を経て給湯栓５８から給
湯される。このとき、開閉弁５６は閉じている。In the hot water supply apparatus having the above-mentioned structure, when general hot water is supplied to a kitchen or the like, the heat exchanger 5 for heating water is used.
The amount of hot water heated in 2 is adjusted by the mixing valve 62, and is supplied from the hot water tap 58 through the general hot water supply passage 55. At this time, the open / close valve 56 is closed.
【０００５】また、浴槽に湯張給湯または追焚給湯を行
う場合には、開閉弁５６が作動して浴槽用給湯路５４が
開き、水加熱用熱交換器５２で湯張設定温度に加熱され
た温水または追焚設定温度に加熱された熱水が浴槽用給
湯路５４を通って浴槽へ供給される（このとき給湯栓５
８は閉じている）。When hot water or hot water is supplied to the bathtub, the on-off valve 56 is operated to open the hot water supply passage 54 for the bathtub, and the bath is heated to the hot water set temperature by the heat exchanger 52 for water heating. Hot water or hot water heated to the reheating setting temperature is supplied to the bathtub through the bathtub hot water supply passage 54 (at this time, the hot water tap 5).
8 is closed).
【０００６】さらに、浴槽への湯張給湯中に一般給湯を
割込ませる場合、給湯水流スイッチ６０がＯＮになり、
湯張給湯と一般給湯が同時使用であることを検知し、ミ
キシングバルブ６２の開度を調節して、風呂側、給湯側
の湯を分配することにより一般給湯の割込みが行われ
る。Further, when general hot water is interrupted during hot water supply to the bathtub, the hot water supply water flow switch 60 is turned on,
It is detected that the hot water supply and the general hot water are being used simultaneously, the opening of the mixing valve 62 is adjusted, and the hot water is supplied to the bath side and the hot water supply side to interrupt the general hot water supply.
【０００７】また、浴槽への追焚給湯中に一般給湯を割
込ませる場合、給湯水流スイッチ６０がＯＮになり、追
焚給湯と一般給湯が同時使用であることを検知し、ミキ
シングバルブ６２の開度を調節して、追焚給湯温度の高
温水の、浴槽側と一般給湯側の分配割合を調節するとと
もに、一般給湯路５５側に分配された高温水をバイパス
路５９からの水と混合することにより、一般給湯路５５
から台所などへの一般給湯が行われる。When the general hot water supply is interrupted during the hot water supply to the bathtub, the hot water supply water flow switch 60 is turned on, and it is detected that the additional heating water and the general hot water are used simultaneously, and the mixing valve 62 The opening is adjusted to adjust the distribution ratio of the high-temperature water having the additional heating water temperature between the bathtub side and the general hot water supply side, and the high temperature water distributed to the general hot water supply passage 55 side is mixed with the water from the bypass passage 59. By doing so, the general hot water supply passage 55
General hot water is supplied to the kitchen.
【０００８】[0008]
【発明が解決しようとする課題】しかし、上記従来の給
湯装置においては、浴槽への追焚給湯中に一般給湯（割
込み給湯）を行う場合、一般給湯の割込みの初期に給湯
温度が設定温度を越えるオーバーシュートや設定温度を
下回るアンダーシュートが生じ、使用者に不快感を与え
るという問題点がある。However, in the above-described conventional hot water supply apparatus, when the general hot water supply (interruption hot water supply) is performed during the hot water supply to the bathtub, the hot water supply temperature reaches the set temperature at the initial stage of the interrupt of the general hot water supply. There is a problem in that an overshoot that exceeds the set temperature and an undershoot that falls below the set temperature occur, which makes the user uncomfortable.
【０００９】また、手動追焚給湯中に一般給湯を割込ま
せた場合、ミキシングバルブ６２の、追焚給湯量と一般
給湯量の分配割合に限度があり、追焚給湯量が所定量以
下（例えば、２．５ｌ／min以下）のときには、一般給
湯が優先して追焚給湯が停止してしまうという問題点が
ある。Further, when the general hot water is interrupted during the manual additional hot water supply, there is a limit to the distribution ratio of the additional hot water supply amount and the general hot water supply amount of the mixing valve 62, and the additional hot water supply amount is equal to or less than a predetermined amount ( For example, when the flow rate is 2.5 l / min or less), there is a problem that the general hot water supply is prioritized and the additional hot water supply is stopped.
【００１０】さらに、上記従来の給湯装置は、自動追焚
給湯中に一般給湯を所定の温度で行うこと、すなわち、
給湯の質を高く保つことが困難なことを考慮して、自動
追焚給湯中には一般給湯を行えないように設計されてお
り、同時給湯を行うことができないという問題点があ
る。Furthermore, the above-mentioned conventional hot water supply apparatus performs general hot water supply at a predetermined temperature during automatic additional hot water supply, that is,
Considering that it is difficult to keep the quality of hot water supply high, it is designed so that general hot water supply cannot be performed during automatic additional hot water supply, and there is a problem that simultaneous hot water supply cannot be performed.
【００１１】この発明は、上記問題点を解決するもので
あり、浴槽への追焚給湯中に一般給湯の割込みがあった
ときに、追焚給湯条件などの運転条件にかかわらず、追
焚給湯と一般給湯を同時に行うことが可能で、かつ、追
焚給湯または湯張給湯中に一般給湯の割込みを行った場
合の一般給湯側のオーバーシュートやアンダーシュート
を防止して、所定の温度で給湯することが可能な給湯装
置を提供することを目的とする。The present invention solves the above-mentioned problems, and when there is an interruption of the general hot water supply during the hot water supply to the bathtub, the additional hot water supply is performed regardless of the operating conditions such as the additional hot water supply condition. And general hot water can be performed at the same time, and overshoot and undershoot on the general hot water supply side can be prevented when interrupting the general hot water supply during additional hot water supply or hot water supply, and hot water can be supplied at a predetermined temperature. It is an object of the present invention to provide a hot water supply device that can be used.
【００１２】[0012]
【課題を解決するための手段】上記目的を達成するため
に、この発明の給湯装置は、水加熱用熱交換器からの給
湯路を、第１給湯路と第２給湯路とに分岐させ、前記第
１給湯路に逆止弁を配設し、かつ、前記水加熱用熱交換
器に水を供給する給水路から分岐させたバイパス路を第
１給湯路の前記逆止弁より下流側に接続するとともに、
第１給湯路と前記バイパス路との接続箇所にミキシング
バルブを配設し、第１給湯路と第２給湯路との分岐箇所
よりも下流側の第２給湯路に浴槽への追焚給湯時に開と
なる閉止機能付水量調整弁を配設するとともに、第１給
湯路と前記バイパス路との接続箇所よりも下流側で第１
給湯路をさらに第３給湯路及び第４給湯路に分岐させ、
その分岐箇所に第３給湯路及び第４給湯路への水量を分
配制御し、かつ、第４給湯路側出口を閉止する機能を有
する水量調節弁を配設し、第３給湯路を一般給湯路とす
るとともに、一般給湯が行われたことを検知する水流セ
ンサを第３給湯路に配設し、かつ、第４給湯路を第２給
湯路の前記閉止機能付水量調整弁を配設した位置よりも
下流側に接続し、第２給湯路の第４給湯路との接続箇所
より下流側を浴槽用給湯路とし、浴槽への湯張給湯中ま
たは追焚給湯中に一般給湯の割込みがあったときに、湯
張給湯中では前記水流センサが割込みを検知し、前記水
量調節弁が湯張給湯量と一般給湯量を所定の割合に分配
制御し、追焚給湯中では前記水流センサが割込みを検知
し、前記閉止機能付水量調整弁を調節して追焚給湯量を
調節するとともに、前記水量調節弁を調節して前記水量
調節弁の第４給湯路側出口を閉止するとともに第３給湯
路への給湯量を調節し、ミキシングバルブにおいてバイ
パス路からの加熱されていない水と混合され一般給湯温
度に調節された温水を所定の給湯量で第３給湯路から一
般給湯することを特徴としている。In order to achieve the above object, a hot water supply apparatus according to the present invention has a hot water supply path from a water heating heat exchanger branched into a first hot water supply path and a second hot water supply path. The said
A check valve is arranged in the first hot water supply passage, and a bypass passage branched from the water supply passage for supplying water to the water heating heat exchanger is connected to the first hot water supply passage downstream of the check valve. With
A mixing valve is provided at a connection point between the first hot water supply passage and the bypass passage, and when hot water is added to the bathtub in the second hot water supply passage downstream of the branch point between the first hot water supply passage and the second hot water supply passage. A water quantity adjusting valve with a closing function that opens is provided, and the first hot water supply passage and the first hot water supply passage are provided on the downstream side of the connection point of the bypass passage.
The hot water supply passage is further branched into the third hot water supply passage and the fourth hot water supply passage,
A water amount control valve having a function of distributing and controlling the amount of water to the third hot water supply passage and the fourth hot water supply passage and also having a function of closing the fourth hot water supply passage side outlet is disposed at the branch point, and the third hot water supply passage is connected to the general hot water supply passage. And a position where a water flow sensor for detecting that the general hot water supply is performed is provided in the third hot water supply passage and the fourth hot water supply passage is provided with the water amount adjusting valve with the closing function of the second hot water supply passage. Connected to the downstream side, and the downstream side of the connection point of the second hot water supply passage with the fourth hot water supply passage is used as the hot water supply passage for the bathtub, and there is an interruption of general hot water supply during hot water supply to the bathtub or during additional hot water supply. At the time of hot water supply, the water flow sensor detects an interruption, and the water amount control valve distributes and controls the amount of hot water supply and the amount of general hot water at a predetermined ratio, and the water flow sensor interrupts during hot water supply. And adjust the water quantity adjusting valve with the closing function to adjust the amount of hot water for additional heating. The water amount adjusting valve is adjusted to close the outlet of the water amount adjusting valve on the side of the fourth hot water supply passage and the amount of hot water supplied to the third hot water supply passage is adjusted, and is mixed with unheated water from the bypass passage in the mixing valve. It is characterized in that hot water adjusted to the hot water supply temperature is supplied from the third hot water supply passage to the general hot water at a predetermined hot water supply amount.
【００１３】[0013]
【作用】浴槽への湯張給湯中または追焚給湯中に一般給
湯の割込みがあると、湯張給湯中においては、水流セン
サにより割込みが検知され、水量調節弁が制御されて湯
張給湯量と一般給湯量が所定の割合に分配制御されると
ともに、追焚給湯中においては、水流センサにより割込
みが検知され、閉止機能付水量調整弁の開度を調節する
ことにより追焚給湯量が調節されるとともに、水量調節
弁の第４給湯路側出口が閉止されるとともに第３給湯路
への給湯量が調節され、第１給湯路からミキシングバル
ブに供給された追焚給湯温度の高温水がミキシングバル
ブおいてバイパス路からの加熱されていない水と混合さ
れ、所定の温度（一般給湯温度）に調節された後、所定
の給湯量で第３給湯路から一般給湯される。[Function] When hot water is supplied to the bathtub or hot water is added to the hot water, an interrupt is detected by the water flow sensor during the hot water supply, and the water flow control valve is controlled to control the hot water supply amount. The general hot water supply amount is distributed and controlled at a predetermined rate, and during hot water heating, an interrupt is detected by the water flow sensor, and the hot water supply amount is adjusted by adjusting the opening of the water amount adjustment valve with a closing function. At the same time, the outlet of the water amount control valve on the side of the fourth hot water supply passage is closed, and the amount of hot water supplied to the third hot water supply passage is adjusted, so that the high-temperature water at the additional heating water supply temperature supplied from the first hot water supply passage to the mixing valve is mixed. After being mixed with unheated water from the bypass passage at the valve and adjusted to a predetermined temperature (general hot water supply temperature), general hot water is supplied from the third hot water supply passage at a predetermined hot water supply amount.
【００１４】したがって、浴槽への追焚給湯中に一般給
湯の割込みがあったときに、運転条件（追焚給湯条件）
を問うことなく、追焚給湯と一般給湯を同時に行うこと
ができるとともに、追焚給湯または湯張給湯中に一般給
湯の割込みを行った場合の一般給湯側のオーバーシュー
トやアンダーシュートを防止して、所定の温度で給湯す
ることが可能になる。Therefore, when there is an interruption of the general hot water supply during the hot water supply to the bathtub, the operating condition (additional hot water supply condition)
It is possible to supply additional hot water and general hot water at the same time without asking, and to prevent overshoot and undershoot on the general hot water supply side when interrupting the general hot water supply during additional hot water or hot water supply. It becomes possible to supply hot water at a predetermined temperature.
【００１５】[0015]
【実施例】以下、この発明の実施例を図に基づいて説明
する。図１は、この発明の一実施例にかかる給湯装置の
構成を示す図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a hot water supply apparatus according to one embodiment of the present invention.
【００１６】図に示すように、この実施例の給湯装置
は、給水路１から供給される水を加熱する水加熱用熱交
換器２と、水加熱用熱交換器２で加熱された温水を供給
するための給湯路３とを備えている。給水路１には水量
センサ５，入水サーミスタ６，定流量弁７が配設されて
いる。また、給湯路３の水加熱用熱交換器２の出口に近
い位置には、出湯サーミスタ８が配設されている。As shown in the figure, in the hot water supply apparatus of this embodiment, a water heating heat exchanger 2 for heating water supplied from a water supply passage 1 and hot water heated by the water heating heat exchanger 2 are provided. A hot water supply passage 3 for supplying the water is provided. The water supply path 1 is provided with a water amount sensor 5, a water input thermistor 6, and a constant flow valve 7. Further, a tapping thermistor 8 is provided at a position near the outlet of the water heating heat exchanger 2 in the hot water supply passage 3.
【００１７】そして、水加熱用熱交換器２からの給湯路
３は、第１給湯路９と第２給湯路１０とに分岐してお
り、第１給湯路９には、逆止弁１６が配設されている。
さらに、第１給湯路９には給水路１から分岐させたバイ
パス路１４が接続されており、バイパス路１４と第１給
湯路９との接続箇所にはミキシングバルブ１５が配設さ
れている。ミキシングバルブ１５の下流側の第１給湯路
９には給湯サーミスタ１７が配設されており、第１給湯
路９の下流側はさらに第３給湯路１１と第４給湯路１２
に分岐している。そして、第３給湯路１１と第４給湯路
１２との分岐箇所には、第３給湯路１１及び第４給湯路
１２への水量を分配制御し、かつ、第４給湯路１２側出
口を閉止する機能を有する水量調節弁（３方弁）１９を
配設している。なお、この水量調節弁１９は、前述の従
来例（図２）におけるミキシングバルブ６２とは異な
り、浴槽への追焚給湯量と一般給湯量の分配割合に特別
の制約のない弁である。The hot water supply passage 3 from the water heating heat exchanger 2 is branched into a first hot water supply passage 9 and a second hot water supply passage 10, and a check valve 16 is provided in the first hot water supply passage 9. It is arranged.
Further, a bypass 14 branched from the water supply passage 1 is connected to the first hot water supply passage 9, and a mixing valve 15 is provided at a connection point between the bypass passage 14 and the first hot water supply passage 9. A hot water supply thermistor 17 is arranged in the first hot water supply passage 9 downstream of the mixing valve 15, and the third hot water supply passage 11 and the fourth hot water supply passage 12 are further provided downstream of the first hot water supply passage 9.
Has branched to. Then, at the branch point between the third hot water supply passage 11 and the fourth hot water supply passage 12, the amount of water to the third hot water supply passage 11 and the fourth hot water supply passage 12 is distributed and controlled, and the fourth hot water supply passage 12 side outlet is closed. A water amount control valve (three-way valve) 19 having a function to operate is provided. Unlike the mixing valve 62 in the conventional example (FIG. 2) described above, the water amount control valve 19 is a valve that does not have any special restriction on the distribution ratio of the additional hot water supply amount to the bathtub and the general hot water supply amount.
【００１８】第３給湯路１１は台所などへの一般給湯を
行うための給湯路であり、一般給湯の割込みが行われた
場合にこれを検知するための水流センサ１８が配設され
ているとともに、その先端側は給湯栓２１に接続されて
いる。The third hot water supply passage 11 is a hot water supply passage for supplying general hot water to a kitchen or the like, and is provided with a water flow sensor 18 for detecting the interruption of the general hot water supply. The tip side is connected to the hot-water tap 21.
【００１９】また、第２給湯路１０には、第１給湯路９
と第２給湯路１０の分岐箇所よりも下流側で、かつ、第
２給湯路１０と第４給湯路１２との接続箇所の上流側
に、浴槽２２への追焚給湯時に開となる閉止機能付水量
調整弁２０が配設されている。なお、第２給湯路１０
の、第４給湯路１２との接続箇所より下流側は浴槽２２
への湯張給湯または追焚給湯を行うための浴槽用給湯路
１０ａとなっており、その途中には逆止弁付真空破壊弁
（バキュームブレーカ）１３が配設されている。The first hot water supply passage 9 is provided in the second hot water supply passage 10.
A closing function that opens when additional hot water is supplied to the bathtub 22 on the downstream side of the branch point of the second hot water supply path 10 and on the upstream side of the connection point between the second hot water supply path 10 and the fourth hot water supply path 12. A water amount adjusting valve 20 is provided. In addition, the second hot water supply path 10
The downstream side of the connection point with the fourth hot water supply path 12 is a bathtub 22.
A hot water supply path 10a for a bathtub is provided for performing hot water supply or additional heating water supply, and a vacuum breaker (vacuum breaker) 13 with a check valve is provided in the middle thereof.
【００２０】また、バーナ４１に燃料ガスを供給するガ
スライン４０には、セーフティ弁４２，メーン弁４３，
比例弁４４が配設されており、これらは、装置の運転制
御を行う制御部４５に接続されている。The gas line 40 for supplying the fuel gas to the burner 41 has a safety valve 42, a main valve 43,
Proportional valves 44 are provided, and these are connected to a control unit 45 that controls the operation of the device.
【００２１】次に、上記のように構成された給湯装置の
動作を説明する。まず、通常の一般給湯を行う場合、給
水路１より供給された水は、水加熱用熱交換器２におい
て加熱され、給湯路３，第１給湯路９，ミキシングバル
ブ１５を経て第３給湯路（一般給湯路）１１を通り、給
湯栓２１から台所などに一般給湯される。このとき、閉
止機能付水量調整弁２０及び水量調節弁１９の第４給湯
路１２側出口は閉じている。Next, the operation of the hot water supply device configured as described above will be described. First, in the case of performing ordinary general hot water supply, the water supplied from the water supply passage 1 is heated in the water heating heat exchanger 2, passes through the hot water supply passage 3, the first hot water supply passage 9, the mixing valve 15, and the third hot water supply passage. (General hot water supply path) 11, and general hot water is supplied from a hot water tap 21 to a kitchen or the like. At this time, the outlets on the side of the fourth hot water supply passage 12 of the water amount adjusting valve 20 with the closing function and the water amount adjusting valve 19 are closed.
【００２２】また、浴槽２２への湯張給湯を行う場合に
は、閉止機能付水量調整弁２０が閉じるとともに、水量
調節弁１９の第４給湯路１２側出口が開き、温水が第１
給湯路９，第４給湯路１２，浴槽用給湯路１０ａを経て
浴槽２２へ供給される。In addition, when hot water is supplied to the bathtub 22, the water amount adjusting valve 20 with a closing function is closed, and the outlet of the water amount adjusting valve 19 on the side of the fourth hot water supply passage 12 is opened, so that the hot water is supplied first.
It is supplied to the bathtub 22 via the hot water supply passage 9, the fourth hot water supply passage 12, and the hot water supply passage 10a for the bathtub.
【００２３】さらに、追焚給湯を行う場合、閉止機能付
水量調整弁２０が開くとともに、水量調節弁１９の第４
給湯路１２側出口が閉じ、所定の温度（例えば、約９３
℃）の熱水が第２給湯路１０，浴槽用給湯路１０ａを経
て浴槽２２へ供給される。Further, in the case of additional hot water supply, the water quantity adjusting valve 20 with the closing function is opened and the fourth quantity of the water quantity adjusting valve 19 is provided.
The outlet on the side of the hot water supply passage 12 is closed, and a predetermined temperature (for example, about 93
Hot water of (° C.) is supplied to the bathtub 22 through the second hot water supply passage 10 and the bathtub hot water supply passage 10a.
【００２４】また、浴槽２２に湯張給湯している途中に
一般給湯を行う場合においては、給湯栓２１が開けられ
ると、水流センサ１８がこれを検知し、水量調節弁１９
の開度を調節して、湯張給湯量と一般給湯量を分配制御
する。したがって、湯張給湯中にも安定した一般給湯を
行うことができる。なお、この場合、一般給湯側の温度
は湯張給湯の設定温度となる。When general hot water is supplied while hot water is being supplied to the bathtub 22, when the hot water tap 21 is opened, the water flow sensor 18 detects this and the water volume control valve 19 is opened.
The hot water supply amount and the general hot water supply amount are distributed and controlled by adjusting the opening degree of. Therefore, stable hot water supply can be performed even during hot water supply. In this case, the temperature on the general hot water supply side is the set temperature for hot water supply.
【００２５】さらに、浴槽２２に追焚給湯している途中
に一般給湯を行う場合においては、給湯栓２１が開けら
れると、水流センサ１８がこれを検知し、閉止機能付水
量調整弁２０の開度を調節することにより追焚給湯量を
調節するとともに、水量調節弁１９の第４給湯路１２側
出口が閉じる。追焚設定温度（約９３℃）の熱水は第１
給湯路９を経てミキシングバルブ１５に入り、バイパス
路１４から供給される水とミキシングされて所定の温度
になった後、水量調節弁１９を経て一般給湯路（第３給
湯路）１１から一般給湯される。このとき、水量調節弁
１９の第４給湯路１２側出口は閉じているため、追焚給
湯は継続して行われる。したがって、浴槽２２への追焚
給湯中に割込み給湯を行った場合にも、一般給湯開始時
に給湯温度が大幅にばらつくこと、すなわち、オーバー
シュートやアンダーシュートを生じることがなく、所定
の温度で安定した一般給湯（割込み給湯）を行うことが
できる。Further, when general hot water is supplied while the hot water is being added to the bathtub 22, when the hot water tap 21 is opened, the water flow sensor 18 detects this and the water amount adjusting valve 20 with a closing function is opened. The additional hot water supply amount is adjusted by adjusting the degree, and the outlet of the water amount control valve 19 on the fourth hot water supply passage 12 side is closed. Hot water with additional heating temperature (about 93 ° C) is first
After entering the mixing valve 15 through the hot water supply passage 9 and being mixed with the water supplied from the bypass passage 14 to reach a predetermined temperature, the general hot water supply passage (third hot water supply passage) 11 through the general hot water supply passage 11 through the water volume control valve 19. To be done. At this time, since the outlet of the water amount control valve 19 on the side of the fourth hot water supply passage 12 is closed, the additional heating hot water is continuously supplied. Therefore, even if the interrupt hot water is supplied during the additional hot water supply to the bathtub 22, the hot water supply temperature greatly varies at the start of general hot water supply, that is, overshoot or undershoot does not occur, and stable at a predetermined temperature. The general hot water supply (interrupted hot water supply) can be performed.
【００２６】[0026]
【発明の効果】上述のように、この発明の給湯装置は、
第１給湯路にミキシングバルブを設けるとともに、第３
給湯路と第４給湯路の分岐箇所に、第３給湯路及び第４
給湯路への水量を分配制御し、かつ、第４給湯路側出口
を閉止する機能を有する水量調節弁を配設して、浴槽へ
の追焚給湯中に一般給湯の割込みがあった場合に、ミキ
シングバルブにおいて一般給湯温度に調節された温水を
一般給湯するように構成しているので、浴槽への追焚給
湯中に一般給湯の割込みを行う場合に、運転条件（追焚
給湯条件）を問うことなく、追焚給湯と一般給湯を同時
に行うことができるとともに、追焚給湯または湯張給湯
中に一般給湯の割込みを行った場合のオーバーシュート
やアンダーシュートを防止して、高品質の一般給湯を行
うことができる。As described above, the hot water supply device of the present invention
A mixing valve is provided in the first hot water supply passage, and
At the branch point of the hot water supply passage and the fourth hot water supply passage, the third hot water supply passage and the fourth hot water supply passage are provided.
When the water amount control valve that distributes and controls the amount of water to the hot water supply passage and that has the function of closing the fourth hot water supply passage side outlet is provided, and there is an interruption of general hot water supply during additional hot water supply to the bathtub, Since the mixing valve is configured to supply hot water adjusted to the general hot water temperature to the general hot water, the operating condition (additional hot water supply condition) is asked when interrupting the general hot water supply while hot water is being added to the bathtub. Hot water supply and general hot water can be performed at the same time, and high-quality general hot water can be prevented by preventing overshoot or undershoot when interrupting the general hot water supply during additional hot water supply or hot water supply. It can be performed.
【図１】この発明の一実施例にかかる給湯装置の構成を
示す図である。FIG. 1 is a diagram showing a configuration of a hot water supply apparatus according to one embodiment of the present invention.
【図２】従来の給湯装置の構成を示す図である。FIG. 2 is a diagram showing a configuration of a conventional hot water supply device.
１ 給水路 ２ 水加熱用熱交換器 ３ 給湯路 ９ 第１給湯路 １０ 第２給湯路 １０ａ 浴槽用給湯路 １１ 第３給湯路（一般給湯路） １２ 第４給湯路 １４ バイパス路 １５ ミキシングバルブ １８ 水流センサ １９ 水量調節弁 ２０ 閉止機能付水量調整弁 ２２ 浴槽 ４５ 制御部 1 Water Supply Channel 2 Heat Exchanger for Water Heating 3 Hot Water Supply Channel 9 First Hot Water Supply Channel 10 Second Hot Water Supply Channel 10a Bath Hot Water Supply Channel 11 Third Hot Water Supply Channel (General Hot Water Supply Channel) 12 Fourth Hot Water Supply Channel 14 Bypass Channel 15 Mixing Valve 18 Water flow sensor 19 Water flow control valve 20 Water flow control valve with closing function 22 Bath tub 45 Control unit
Claims (1)
給湯路と第２給湯路とに分岐させ、前記第１給湯路逆止
弁を配設し、かつ、前記水加熱用熱交換器に水を供給す
る給水路から分岐させたバイパス路を第１給湯路の前記
逆止弁より下流側に接続するとともに、第１給湯路と前
記バイパス路との接続箇所にミキシングバルブを配設
し、第１給湯路と第２給湯路との分岐箇所よりも下流側
の第２給湯路に浴槽への追焚給湯時に開となる閉止機能
付水量調整弁を配設するとともに、第１給湯路と前記バ
イパス路との接続箇所よりも下流側で第１給湯路をさら
に第３給湯路及び第４給湯路に分岐させ、その分岐箇所
に第３給湯路及び第４給湯路への水量を分配制御し、か
つ、第４給湯路側出口を閉止する機能を有する水量調節
弁を配設し、第３給湯路を一般給湯路とするとともに、
一般給湯が行われたことを検知する水流センサを第３給
湯路に配設し、かつ、第４給湯路を第２給湯路の前記閉
止機能付水量調整弁を配設した位置よりも下流側に接続
し、第２給湯路の第４給湯路との接続箇所より下流側を
浴槽用給湯路とし、浴槽への湯張給湯中または追焚給湯
中に一般給湯の割込みがあったときに、湯張給湯中では
前記水流センサが割込みを検知し、前記水量調節弁が湯
張給湯量と一般給湯量を所定の割合に分配制御し、追焚
給湯中では前記水流センサが割込みを検知し、前記閉止
機能付水量調整弁を調節して追焚給湯量を調節するとと
もに、前記水量調節弁を調節して前記水量調節弁の第４
給湯路側出口を閉止するとともに第３給湯路への給湯量
を調節し、ミキシングバルブにおいてバイパス路からの
加熱されていない水と混合され一般給湯温度に調節され
た温水を所定の給湯量で第３給湯路から一般給湯するこ
とを特徴とする給湯装置。1. A hot water supply path from a heat exchanger for water heating is provided by a first
The hot water supply passage and the second hot water supply passage are branched off to check the first hot water supply passage.
A bypass passage provided with a valve and branched from a water supply passage for supplying water to the water heating heat exchanger is provided in the first hot water supply passage .
The mixing valve is connected to the downstream side of the check valve, and the mixing valve is disposed at the connection point of the first hot water supply passage and the bypass passage, and the mixing valve is provided downstream of the branch point of the first hot water supply passage and the second hot water supply passage. (2) A water quantity adjusting valve with a closing function is provided in the hot water supply passage that opens when hot water is added to the bathtub, and the first hot water supply passage is further provided downstream of the connection point between the first hot water supply passage and the bypass passage. A water amount control valve having a function of branching into the third hot water supply passage and the fourth hot water supply passage, distributing and controlling the amount of water to the third hot water supply passage and the fourth hot water supply passage, and closing the fourth hot water supply passage side outlet It is installed and the third hot water supply passage is used as a general hot water supply passage,
A water flow sensor for detecting that general hot water has been supplied is provided in the third hot water supply passage, and a fourth hot water supply passage is provided downstream of the position of the second hot water supply passage with the water amount adjusting valve with the closing function. , And the downstream side of the connection point of the second hot water supply passage with the fourth hot water supply passage is used as the hot water supply passage for the bathtub, and when there is an interruption of general hot water supply during hot water supply or additional hot water supply to the bathtub, In the hot water supply, the water flow sensor detects an interruption, the water amount control valve distributes and controls the hot water supply amount and the general hot water supply at a predetermined ratio, and the water flow sensor detects an interruption during hot water heating. A fourth amount of the water amount adjusting valve is adjusted by adjusting the water amount adjusting valve with the closing function to adjust an additional hot water supply amount.
The hot water supplied to the third hot water supply passage is closed and the hot water supply amount to the third hot water supply passage is adjusted, and the hot water mixed with the unheated water from the bypass passage at the mixing valve is adjusted to the general hot water supply temperature at the predetermined hot water supply amount. A hot water supply device characterized in that general hot water is supplied from a hot water supply passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3315499A JP2556788B2 (en) | 1991-11-01 | 1991-11-01 | Water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3315499A JP2556788B2 (en) | 1991-11-01 | 1991-11-01 | Water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05126398A JPH05126398A (en) | 1993-05-21 |
| JP2556788B2 true JP2556788B2 (en) | 1996-11-20 |
Family
ID=18066102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3315499A Expired - Fee Related JP2556788B2 (en) | 1991-11-01 | 1991-11-01 | Water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2556788B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011162470A (en) | 2010-02-09 | 2011-08-25 | Gc Corp | Tooth coating material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03177747A (en) * | 1989-12-07 | 1991-08-01 | Noritz Corp | Hot water supplier |
-
1991
- 1991-11-01 JP JP3315499A patent/JP2556788B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05126398A (en) | 1993-05-21 |
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