JPS6327619B2 - - Google Patents
Info
- Publication number
- JPS6327619B2 JPS6327619B2 JP57175109A JP17510982A JPS6327619B2 JP S6327619 B2 JPS6327619 B2 JP S6327619B2 JP 57175109 A JP57175109 A JP 57175109A JP 17510982 A JP17510982 A JP 17510982A JP S6327619 B2 JPS6327619 B2 JP S6327619B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water
- temperature
- amount
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 181
- 238000002485 combustion reaction Methods 0.000 claims description 24
- 239000000446 fuel Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 10
- 235000014676 Phragmites communis Nutrition 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 5
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003287 bathing Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
- F23N1/085—Regulating fuel supply conjointly with another medium, e.g. boiler water using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/18—Measuring temperature feedwater temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/18—Groups of two or more valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明はガス瞬間湯沸器等の給湯装置において
特に風呂への給湯量を自動制御するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to automatic control of the amount of hot water supplied to a bath in a hot water supply device such as a gas instantaneous water heater.
従来例の構成とその問題点
従来、風呂は風呂釜等のように浴槽に貯水した
水を加熱する構成が一般であつた。しかし最近は
セントラル給湯の普及により風呂も給湯機からの
適温の湯を直接浴槽に給湯する方式が増加してい
る。この場合給湯している事を忘れて浴槽からあ
ふれさせる失敗が多く、水や燃料を無駄にする。Conventional configurations and their problems Conventionally, baths have generally been configured to heat water stored in a bathtub, such as in a bathtub. However, recently, with the spread of central hot water supply, there has been an increase in the number of bathtubs in which hot water at an appropriate temperature is supplied directly from a water heater to the bathtub. In this case, people often forget that hot water is being supplied and cause the bathtub to overflow, resulting in wasted water and fuel.
これを解決するために第１０図のように水量を
計測して目盛で合せた水量になつた時に通水を停
止する構成で手軽に蛇口に取付可能なアタツチメ
ントが市販されている。これは蛇口１の出口にビ
ス２等によりアタツチメント３を固着し、ダイア
ル４により合せた目盛の給水量になつたときに給
水を停止するものである。しかしこれは取付可能
な蛇口１の形状が限定され、また蛇口１とアタツ
チメント３はゴムパツキン（図示せず）をはさみ
込んでビス２で固着されているが水圧による水漏
れ事故がおきることもある。さらに蛇口１に取付
けるため見ばえがよくないという問題があつた。
さらにこのアタツチメント３を内蔵した給湯栓も
市販されているが、非常に高価であつた。またこ
れ等は給湯量のみを制御するものであるため給湯
温度が高い時と低い時では浴槽に必要な湯量が変
化し使用する毎に人間が判断して給湯量を設定す
る必要があつた。 To solve this problem, an attachment that can be easily attached to a faucet is commercially available, as shown in FIG. 10, which measures the amount of water and stops the flow of water when the amount reaches the level set on the scale. In this system, an attachment 3 is fixed to the outlet of the faucet 1 with a screw 2 or the like, and water supply is stopped when the water supply amount reaches a scale set by a dial 4. However, this limits the shape of the faucet 1 that can be attached, and although the faucet 1 and the attachment 3 are fixed with screws 2 with a rubber gasket (not shown) in between, water leakage accidents may occur due to water pressure. Furthermore, since it was attached to the faucet 1, there was a problem that the appearance was not good.
Furthermore, hot water taps incorporating this attachment 3 are commercially available, but they are very expensive. In addition, since these systems only control the amount of hot water supplied, the amount of hot water required for the bathtub changes depending on whether the hot water temperature is high or low, and it is necessary for a person to judge and set the amount of hot water each time the bathtub is used.
発明の目的
本発明は以上のような従来の欠点を解決するも
ので燃焼量制御機能を有する給湯装置に給湯量を
制御する装置を内蔵し、一般市販の蛇口を使用し
て風呂に最適な湯温の湯を最適量給湯することを
目的とする。Purpose of the Invention The present invention solves the above-mentioned drawbacks of the conventional technology by incorporating a device for controlling the amount of hot water into a hot water heater having a combustion amount control function, and using a commercially available faucet to obtain the optimal hot water for a bath. The purpose is to supply the optimum amount of warm water.
発明の構成
この目的を達成するために本発明は燃料を燃焼
するバーナと、このバーナにより水を加熱する熱
交換器と、この熱交換器からの出湯温度を可変す
る湯温可変設定器および出湯温度を予め定められ
た温度に固定する湯温固定設定器と、前記熱交換
器からの出湯温度を検出する温度センサと、前記
熱交換器を流通する水量を検出する水量センサ
と、この水量センサの水流信号で動作し、かつ前
記温度センサの信号を検出し、前記湯温可変設定
器の設定値あるいは前記湯温固定設定器の設定値
になるようにバーナの燃焼量を制御する燃料制御
弁を駆動する燃焼量制御回路と、選択スイツチ
と、この選択スイツチに駆動された時、前記水量
センサの信号をカウントし、その積算値が給湯量
設定部により予め設定された給湯量に達したこと
を検出して給湯を停止する水バルブを駆動する流
量制御回路と、前記選択スイツチを動作させた時
に、前記燃焼量制御回路の給湯設定温度を予め定
められた温度に固定する湯温固定設定器に切替え
る切替回路を備えたものである。Structure of the Invention In order to achieve this object, the present invention includes a burner that burns fuel, a heat exchanger that heats water with the burner, a hot water temperature variable setting device that varies the temperature of hot water discharged from the heat exchanger, and a hot water discharge temperature variable setting device that varies the temperature of hot water discharged from the heat exchanger. A hot water temperature fixing device that fixes the temperature at a predetermined temperature, a temperature sensor that detects the temperature of hot water coming out of the heat exchanger, a water flow sensor that detects the amount of water flowing through the heat exchanger, and this water flow sensor. a fuel control valve that operates based on a water flow signal, detects a signal from the temperature sensor, and controls the combustion amount of the burner so as to reach the set value of the variable hot water temperature setter or the set value of the fixed hot water temperature setter; a combustion amount control circuit that drives the , a selection switch, and when driven by the selection switch, counts the signal of the water amount sensor, and determines that the integrated value has reached the amount of hot water preset by the hot water amount setting section. a flow rate control circuit that drives a water valve that detects and stops hot water supply; and a hot water temperature fixing device that fixes the hot water supply setting temperature of the combustion amount control circuit to a predetermined temperature when the selection switch is operated. It is equipped with a switching circuit that switches to
そして、選択スイツチにより流量制御回路を駆
動すれば切替回路も連動して例えば入浴に最適な
温度の湯が浴槽の大きさに応じて適量だけ給湯さ
れる。 When the flow rate control circuit is driven by the selection switch, the switching circuit is also operated and, for example, an appropriate amount of hot water at the optimum temperature for bathing is supplied according to the size of the bathtub.
実施例の説明
以下、本発明の一実施例を第１図から第９図を
用いて説明してゆく。尚図中で同一部品あるいは
同一の働きをする部品は同一番号を付す。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 9. In the drawings, the same parts or parts having the same function are given the same numbers.
第１図は本発明を応用したガス瞬間式給湯機の
システム図を示す。 FIG. 1 shows a system diagram of a gas instantaneous water heater to which the present invention is applied.
水は入口５から給水され、水量センサ６を通り
熱交換器７、水バルブ８から蛇口１に至る。蛇口
１は複数個あつてもよい。ガスは入口９から制御
弁１０を通りバーナ１１で燃焼する。バーナ１１
は熱交換器７を加熱し、その内部を流通する水を
湯に変える。１２は排気筒を示す。１３はコント
ローラで熱交換器７の出口の湯温を検出する温度
センサ１４や水量センサ６、および湯温設定ツマ
ミ１５の信号と、風呂給湯を選択する選択スイツ
チ（以下風呂スイツチという）１６の信号が入力
され、燃量制御弁１０や水バルブ８に信号を出力
する。 Water is supplied from an inlet 5, passes through a water flow sensor 6, a heat exchanger 7, a water valve 8, and reaches a faucet 1. There may be a plurality of faucets 1. The gas passes through the control valve 10 from the inlet 9 and is combusted in the burner 11. Burner 11
heats the heat exchanger 7 and changes the water flowing inside it into hot water. 12 indicates an exhaust pipe. Reference numeral 13 is a controller that includes signals from a temperature sensor 14 that detects the water temperature at the outlet of the heat exchanger 7, a water flow sensor 6, a water temperature setting knob 15, and a selection switch (hereinafter referred to as bath switch) 16 that selects bath water supply. is input, and a signal is output to the fuel control valve 10 and water valve 8.
第２図のコントローラ１３は燃焼量制御回路１
７と流量制御回路１８およびバーナの着火、消火
を制御する燃焼回路（図示せず）に大別される。
燃焼量制御回路１７は給湯温度が求める設定温度
になるように燃焼量を制御する回路であり温度セ
ンサ１４により給湯温度と湯温可変設定器１５の
設定温度を比較器１９で比較し、その差温を演算
増幅回路２０により増幅して制御弁１０（ここで
は通電電流に応じてガス流量を無段階に制御する
電磁式ガス比例制御弁を使用した例で示す。）を
駆動制御する。第３図に給湯機の特性を示し横軸
Ｑに給湯流量（／min）、縦軸Ｔに給湯温度
（℃）を示す。図の線TWは給水温度を示し、曲線
TMは給湯機の最大能力特性曲線でバーナ１１が
最大燃焼量で燃焼した場合にＱ×△Ｔ＝Ｋ×η一
定となる線を示す。ここでＫはバーナの燃焼量
（Kcal／ｈ）ηは熱交換器等の効率、△Ｔは給湯
温度と給水温度の差（℃）、つまり温度上昇を示
す。 The controller 13 in FIG. 2 is the combustion amount control circuit 1.
7, a flow rate control circuit 18, and a combustion circuit (not shown) that controls ignition and extinguishment of the burner.
The combustion amount control circuit 17 is a circuit that controls the amount of combustion so that the hot water temperature reaches the desired set temperature.The temperature sensor 14 compares the hot water temperature with the set temperature of the hot water temperature variable setting device 15 using a comparator 19, and the difference is calculated. The temperature is amplified by the operational amplifier circuit 20 to drive and control the control valve 10 (here, an example using an electromagnetic gas proportional control valve that continuously controls the gas flow rate in accordance with the applied current) is controlled. Figure 3 shows the characteristics of the water heater, with the horizontal axis Q representing the hot water supply flow rate (/min) and the vertical axis T representing the hot water supply temperature (°C). The line T W in the figure indicates the feed water temperature, and the curve
T M is the maximum capacity characteristic curve of the water heater, and indicates a line where Q×ΔT=K×η is constant when the burner 11 burns at the maximum combustion amount. Here, K is the burner combustion amount (Kcal/h), η is the efficiency of the heat exchanger, etc., and ΔT is the difference (°C) between the hot water supply temperature and the water supply temperature, that is, the temperature rise.
給湯装置が無制御の場合は給湯温度はTW線上
にあり給湯流量Ｑにより温度が大きく変化して非
常に使用しにくい。そこで燃焼量制御回路１７で
バーナ１１の燃焼量を制御することによりT1，
T2，T3のように任意の設定温度で、TM線以下で
あれば給湯量Ｑに無関係に一定の湯温を得られ
る。第２図の演算増幅回路１７は温度差に比例し
た信号を出力する比例回路でも、あるいは微分、
積分要素を含むPID回路にすることも容易であ
る。さらに制御弁１０はオンオフ弁、ハイロー
弁、多段弁等でもよい。 When the water heater is uncontrolled, the hot water temperature is on the T W line, and the temperature changes greatly depending on the hot water flow rate Q, making it extremely difficult to use. Therefore, by controlling the combustion amount of the burner 11 with the combustion amount control circuit 17, T 1 ,
At arbitrary set temperatures such as T 2 and T 3 , a constant hot water temperature can be obtained regardless of the hot water supply amount Q as long as it is below the T M line. The operational amplifier circuit 17 in FIG. 2 may be a proportional circuit that outputs a signal proportional to the temperature difference, or may be a differential circuit.
It is also easy to create a PID circuit that includes an integral element. Furthermore, the control valve 10 may be an on-off valve, a high-low valve, a multistage valve, or the like.
流量制御回路１８は、水量センサ６の信号を積
算回路２１で給湯量を積算し、その値が予め給湯
量設定部２２で設定された風呂設定水量とを比較
器２３で比較し、給湯量が設定水量になつたとき
に水バルブ８を閉じて給湯を停止する。ここで水
バルブ８は常開型あるいは常閉型の電磁バルブで
もモータバルブでもよい。 The flow rate control circuit 18 integrates the amount of hot water supplied by the signal from the water amount sensor 6 using an integration circuit 21, and compares this value with the bath setting water amount set in advance in the hot water amount setting section 22 using a comparator 23, and determines the amount of hot water supplied. When the set amount of water is reached, the water valve 8 is closed to stop hot water supply. Here, the water valve 8 may be a normally open or normally closed electromagnetic valve or a motor valve.
風呂スイツチ１６はこれを操作することにより
通常の給湯と風呂給湯を選択する事を可能とし、
流量制御回路１８を駆動すると同時に切替回路２
４により給湯設定温度を温度可変設定器１５の信
号から予め定められた風呂温度を設定する湯温固
定設定器２５へ切替える。第３図で通常T1〜T3
の任意の温度で給湯していても風呂スイツチ１６
をオンにすることにより設定温度はTFに自動的
に変更される。 By operating the bath switch 16, it is possible to select between normal hot water supply and bath hot water supply.
At the same time as driving the flow rate control circuit 18, the switching circuit 2
4, the hot water supply temperature setting is switched from the signal from the variable temperature setting device 15 to the fixed water temperature setting device 25, which sets a predetermined bath temperature. Normally T 1 to T 3 in Figure 3
Even if hot water is being supplied at any temperature, the bath switch 16
By turning on, the set temperature will automatically change to T F.
また水量センサ６は給湯量を積算する信号を出
力すると共に水量の有無を検知する信号としても
利用している。通常水が流れていないときはバー
ナ１１は消火しており、どこかの蛇口１を開いて
水が流れたことを検出して点火回路（図示せず）
が動作し、燃焼を開始する。従来の給湯機では水
圧を検出してこれによりバーナ１１を点、消火す
る水圧応動弁を設けていたが水量センサ６により
これが不要となる。 Further, the water amount sensor 6 outputs a signal for integrating the amount of hot water supplied, and is also used as a signal for detecting the presence or absence of water amount. Normally, when water is not flowing, the burner 11 is extinguished, and when a faucet 1 is opened and water is detected, the ignition circuit (not shown) is activated.
operates and starts burning. Conventional water heaters are equipped with a water pressure responsive valve that detects water pressure and turns on and off the burner 11 based on the water pressure, but the water flow sensor 6 makes this unnecessary.
第４図〜第６図に水量センサ６の例を示す。第
４図は水車２６を水の流れにより回転させ、水車
２６に設けた磁石２７の回転をホール素子２８、
等の感磁素子で計数する構成である。ホール素子
２８はリードスイツチでもよいし、また水車２６
の回転により発電器を回して発電電圧を検出する
方法や光パルスを発生する方法等であつてもよ
い。 Examples of the water amount sensor 6 are shown in FIGS. 4 to 6. In FIG. 4, the water wheel 26 is rotated by the flow of water, and the rotation of the magnet 27 provided on the water wheel 26 is controlled by the Hall element 28.
It is configured to count using magnetic sensing elements such as. The Hall element 28 may be a reed switch, or the water wheel 26
A method of detecting the generated voltage by rotating a generator by rotation of the generator, a method of generating optical pulses, etc. may be used.
第５図は前述の水圧応動弁と同じ原理であり流
路に設けたオリフイス２９の前後の差圧を検知器
３０で検出する方法により流量を測定するもので
ある。 The valve shown in FIG. 5 is based on the same principle as the water pressure responsive valve described above, and the flow rate is measured by using a detector 30 to detect the differential pressure across the orifice 29 provided in the flow path.
第６図は流路に抵抗体３１を設けてその下流に
発生するカルマン渦の数が流量に比例する事を応
用したものであり、超音波発信器３２と受信器３
３によりカルマン渦３４の数をカウント可能とし
ている。 Fig. 6 shows an application of the fact that a resistor 31 is provided in the flow path and the number of Karman vortices generated downstream is proportional to the flow rate.
3 makes it possible to count the number of Karman vortices 34.
水量検知器６はこのように種々の方式の応用が
考えられ、どのような方式であつてもよい。ここ
では主に構成が簡単な第４図に示す水車式を用い
検出には磁力により接点が開閉するリードスイツ
チを使用した例で説明してゆく。 As described above, the water amount detector 6 can be applied in various ways, and may be of any type. Here, we will mainly explain an example in which a water wheel type shown in FIG. 4, which has a simple configuration, is used, and a reed switch whose contacts are opened and closed by magnetic force is used for detection.
第７図はコントローラ１３の具体回路例を示
す。図で一般的な回路はブロツクにて示しここで
の説明は省く。３５は直流電源で抵抗３６を通し
て水量センサ６（リードスイツチ）が接続されて
いる。このため電位ａは水が流れて磁石２７がリ
ードスイツチ２８（第５図）に対向したときにリ
ードスイツチ２８が導通してアース電位となり、
それ以外の時は直流電源３５のプラス電位とな
る。第４図の水車２６の場合水車２６が一回転す
る毎に４回ロールパルスが出る。３７は比較器で
あり電位ａとｂを比較する。電位ｂは直流電源３
５のほぼ中点電位に設定されているため出力ｃは
電位ａと同期したパルスとなる。抵抗３８とコン
デンサ３９は積分回路を示す。つまり出力ｃがハ
イのとき抵抗３８を通してコンデンサ３９に充電
されて電位ｄは徐々に上昇してゆく。出力ｃがロ
ールレベルになつたときコンデンサ３９はダイオ
ード４０を通して急激に放電する。この状態を第
８図に示す。 FIG. 7 shows a specific circuit example of the controller 13. In the figure, general circuits are shown as blocks and will not be explained here. Reference numeral 35 is a DC power source, and a water amount sensor 6 (reed switch) is connected through a resistor 36. Therefore, when the water flows and the magnet 27 faces the reed switch 28 (Fig. 5), the reed switch 28 becomes conductive and becomes the ground potential.
At other times, the potential is the positive potential of the DC power supply 35. In the case of the water wheel 26 shown in FIG. 4, roll pulses are generated four times each time the water wheel 26 rotates once. A comparator 37 compares potentials a and b. Potential b is DC power supply 3
5, the output c becomes a pulse synchronized with the potential a. A resistor 38 and a capacitor 39 represent an integrating circuit. That is, when the output c is high, the capacitor 39 is charged through the resistor 38, and the potential d gradually increases. When the output c reaches the roll level, the capacitor 39 is rapidly discharged through the diode 40. This state is shown in FIG.
第８図は横軸を時間としたタイミングチヤート
を示しｃは電位ｃの状態で時間t1の間は水が流れ
ていて周期的にローパルスが発生している。この
ためパルスがハイのときはコンデンサ３９に充電
され電位ｄは図のように上昇してゆくがローパル
スが発生した時点でダイオード４０により放電さ
れるためノコギリ波となる。ここで第７図の比較
器４１は電位ｄと電位ｅを比較している。時間t1
は水が流れており水量センサ６から流量信号が入
力されている状態であり、電位ｄのノコギリ波は
電位ｅを越える事はない。このため比較器４１の
出力ｆはハイ出力となり、トランジスタ４２が導
通し、リレーRy１が動作している。これにより
リレーRy１の接点４３がオンして燃焼量制御回
路１７や流量制御回路１８に電源を供給してい
る。４４はバーナ１１の着火や消火シーケンス動
作をする燃焼回路を示し、例えば接点４３のオン
と同時に点火器を動作させ、バーナ１１に着火し
た時に点火器を停止する等の一般的な制御を行な
う。 FIG. 8 shows a timing chart with time as the horizontal axis, and c is a state where the potential is c, water is flowing during time t1 , and low pulses are generated periodically. Therefore, when the pulse is high, the capacitor 39 is charged and the potential d rises as shown in the figure, but when the low pulse occurs, it is discharged by the diode 40, resulting in a sawtooth wave. Here, the comparator 41 in FIG. 7 compares the potential d and the potential e. time t 1
is a state in which water is flowing and a flow rate signal is input from the water flow sensor 6, and the sawtooth wave of potential d never exceeds potential e. Therefore, the output f of the comparator 41 becomes a high output, the transistor 42 becomes conductive, and the relay Ry1 operates. This turns on the contact 43 of the relay Ry1, supplying power to the combustion amount control circuit 17 and the flow rate control circuit 18. Reference numeral 44 indicates a combustion circuit that performs ignition and extinguishing sequence operations for the burner 11, and performs general control such as, for example, operating the igniter at the same time as the contact 43 is turned on, and stopping the igniter when the burner 11 is ignited.
ここで水の流れを停止すると第８図t2のように
流量信号Ｃはハイとなりパルスを発生しない。こ
のためコンデンサ３９は充電を続けてノコギリ波
にならなくｅ電位を越えてしまう。これによりコ
ンパレータ４１の出力ｆはローとなりトランジス
タ４２を遮断し、リレーRy１の動作を停止する。
以上から接点４３が開きバーナ１１が消火され
る。 If the flow of water is stopped here, the flow rate signal C becomes high as shown at t2 in Fig. 8, and no pulse is generated. For this reason, the capacitor 39 continues to be charged and does not become a sawtooth wave, but exceeds the potential e. As a result, the output f of the comparator 41 becomes low, cutting off the transistor 42 and stopping the operation of the relay Ry1.
From the above, the contact 43 opens and the burner 11 is extinguished.
燃焼量制御回路１７は、ここでは抵抗４５，４
６、温度設定用可変抵抗器１５ａと温度センサ１
４でブリツジ回路を組み、その中点電位ｇ，ｈを
増幅制御回路４７に入力する。増幅制御回路４７
は電位ｇ―ｈの差電位を増幅して制御弁１０の駆
動用トランジスタ４８に信号を出力する。ここで
はトランジスタ４８のコレクタ電流値に応じて制
御弁１０は連続的に燃焼量を可変する。増幅制御
回路４７は必要に応じて微分要素や積分要素、そ
の他遮断要素等を組込んだものであつてもよい。 The combustion amount control circuit 17 here includes resistors 45 and 4.
6. Temperature setting variable resistor 15a and temperature sensor 1
4, a bridge circuit is assembled, and its midpoint potentials g and h are input to the amplification control circuit 47. Amplification control circuit 47
amplifies the potential difference between the potentials gh and outputs a signal to the driving transistor 48 of the control valve 10. Here, the control valve 10 continuously varies the combustion amount according to the collector current value of the transistor 48. The amplification control circuit 47 may incorporate a differential element, an integral element, other blocking elements, etc., as necessary.
ここで風呂スイツチ１６をプツシユするとリレ
ーRy２が導通しその接点４９によりリレーRy２
が自己保持される。これにより流量制御回路１８
に電源を供給すると同時にリレーRy２の第２の
接点（切替回路）２４が抵抗２５に切替る。抵抗
２５は半固定抵抗であり風呂温度設定値を好みに
応じて決定する。これにより風呂スイツチ１６を
オンした時は元の湯温可変設定器１５の設定値に
無関係に風呂温度接定値である湯温固定設定器２
５に切替えられる。 When the bath switch 16 is pressed here, the relay Ry2 becomes conductive and its contact 49 causes the relay Ry2 to become conductive.
is self-maintained. As a result, the flow rate control circuit 18
At the same time as power is supplied to the relay Ry2, the second contact (switching circuit) 24 switches to the resistor 25. The resistor 25 is a semi-fixed resistor and determines the bath temperature set value according to preference. As a result, when the bath switch 16 is turned on, the bath temperature fixed value is set as the bath temperature fixed value regardless of the original setting value of the variable water temperature setting device 15.
It can be switched to 5.
流量制御回路１８は水量センサ６の信号パルス
をカウンタ回路５０でカウントして所定の設定値
２２になつた時にトランジスタ５１を駆動し水バ
ルブ８を閉じる信号を出力する。水バルブ８が閉
じられると水の流れはなくなり水量センサ６の信
号もなくなる。このためリレーRy１がオフして
燃焼を停止する。同時にリレーRy２の自己保持
も解除され、次に水を流すと元の湯温可変設定器
１５の設定値に戻る。このとき水バルブ８も開く
ように構成している。 The flow control circuit 18 counts signal pulses from the water flow sensor 6 using a counter circuit 50, and when the signal pulses reach a predetermined set value 22, outputs a signal to drive the transistor 51 and close the water valve 8. When the water valve 8 is closed, there is no flow of water and the signal from the water amount sensor 6 is also eliminated. Therefore, relay Ry1 is turned off and combustion is stopped. At the same time, the self-holding of the relay Ry2 is also released, and the next time water is run, the water temperature returns to the original setting value of the variable water temperature setting device 15. At this time, the water valve 8 is also opened.
給湯量設定部２２は可変できるようにしておき
各家庭の浴槽に応じて予めセツトしておく。 The hot water supply amount setting section 22 is made variable and set in advance according to the bathtub of each household.
第９図は以上の動作をフロー図にして示すもの
である。コントローラ１３をマイクロコンピユー
タ等で構成する場合はこの場合はこのフロー図に
従えばよい。 FIG. 9 shows the above operation in a flow diagram. If the controller 13 is configured with a microcomputer or the like, this flowchart may be followed in this case.
実施例では、選択スイツチを設けて風呂の給湯
が必要な時にだけ給湯量の制御動作をする事によ
り、風呂の給湯以外の場合は通常の給湯機として
従来通りの使用が可能である。また選択スイツチ
と連動して、風呂給湯時は自動的に定められた給
湯温度に設定を切替える構成とすることにより、
通常の給湯機として任意の湯温で使用していても
風呂に給湯する場合は設定温度を手動で調整する
必要は全くない。 In the embodiment, by providing a selection switch and controlling the amount of hot water supplied only when hot water supply for a bath is required, it is possible to use the hot water supply machine as a conventional water heater for purposes other than supplying hot water for a bath. In addition, by linking with the selection switch, the setting is automatically switched to a predetermined hot water temperature when hot water is being supplied to the bath.
Even if it is used as a normal water heater at any desired water temperature, there is no need to manually adjust the set temperature when supplying hot water to a bath.
さらに水流センサにより水流の有無の検出も兼
ねる構成とし、水流がない時に燃焼を停止し、水
流が発生した時に燃焼開始する構成とし、流量制
御回路使用の有無に関係なく、給湯機の使用時は
蛇口の開閉のみで自動的にバーナの点火消火が行
なえる。 Furthermore, the water flow sensor is configured to also detect the presence or absence of water flow, and the combustion is configured to stop when there is no water flow and start combustion when water flow occurs. The burner can be automatically ignited and extinguished simply by opening and closing the faucet.
発明の効果
以上説明したように本発明の給湯装置は次に示
すような効果を有する。Effects of the Invention As explained above, the water heater of the present invention has the following effects.
(1) 選択スイツチを動作させれば流量制御回路を
駆動できるので、例えば風呂の浴槽への給湯の
時だけその浴槽に必要な給湯量で自動的に給湯
を停止すると同時に給湯機の燃焼も停止させる
ことができる。また、選択スイツチを動作させ
なければ、通常の給湯機として必要な温度のお
湯を必要な量だけ給湯できる。このように選択
スイツチのみで自由に機能を選択でき、操作が
簡単な上に、浴槽の湯を溢れさせることもなく
なり、安全で省エネルギーである。(1) By operating the selection switch, you can drive the flow rate control circuit, so for example, when supplying hot water to a bathtub, the hot water supply will automatically stop at the required amount of water for that bathtub, and at the same time, the combustion of the water heater will also stop. can be done. Furthermore, if the selection switch is not operated, the water heater can supply only the required amount of hot water at the required temperature as a normal water heater. In this way, functions can be freely selected using only the selection switch, which is not only easy to operate, but also prevents the hot water from overflowing in the bathtub, making it safe and energy-saving.
(2) 選択スイツチにより、一定給湯量で自動停止
機能を動作する流量制御回路を駆動するととも
に予め定められた固定の温度に給湯温度を切り
替える切替回路を設けた構成としているので、
選択スイツチを動作させる毎に設定温度を修正
する必要がなく、誰でも失敗なく操作可能であ
る。(2) The selection switch drives a flow rate control circuit that automatically shuts off the water supply at a constant amount of hot water supply, and also has a switching circuit that switches the hot water supply temperature to a predetermined fixed temperature.
There is no need to correct the set temperature every time the selection switch is operated, and anyone can operate it without failure.
(3) 給湯量設定部を設け、給湯停止する湯量を使
用者が設定可能な構成であるために、家庭毎に
浴槽の大きさや、貯湯パターン（高温で小量注
湯する、あるいは低温でいつぱい注湯する等）
に合わせて最適な設定が可能である。(3) The system is equipped with a hot water supply amount setting section that allows the user to set the amount of hot water at which the hot water supply stops, so each household can adjust the size of the bathtub and the hot water storage pattern (pouring a small amount at a high temperature or pouring a small amount at a low temperature, pouring hot water, etc.)
Optimal settings can be made to suit your needs.
第１図は本発明の一実施例を説明する給湯装置
のシステム図、第２図はコントローラの動作を説
明するブロツク図、第３図は給湯装置の動作を示
す特性図、第４図，第５図，第６図は水量センサ
の構成例を示す構成図、第７図は具体的な制御回
路図、第８図はその動作説明図、第９図はコント
ローラ動作を説明するフロー図、第１０図は従来
の水量制御用のアタツチメントを示す図である。
６……水量センサ、７……熱交換器、８……水
バルブ、１０……制御弁（燃料制御弁）、１１…
…バーナ、１４……温度センサ、１５……湯温可
変設定器、１６……選択スイツチ、１７……燃焼
量制御回路、１８……流量制御回路、２２……給
湯量設定部、２４……接点（切替回路）、２５…
…湯温固定設定器。
Fig. 1 is a system diagram of a water heater explaining an embodiment of the present invention, Fig. 2 is a block diagram explaining the operation of the controller, Fig. 3 is a characteristic diagram showing the operation of the water heater, Figs. 5 and 6 are configuration diagrams showing an example of the configuration of the water amount sensor, FIG. 7 is a specific control circuit diagram, FIG. 8 is an explanation diagram of its operation, FIG. 9 is a flow diagram explaining the controller operation, and FIG. FIG. 10 is a diagram showing a conventional attachment for water flow control. 6... Water amount sensor, 7... Heat exchanger, 8... Water valve, 10... Control valve (fuel control valve), 11...
... Burner, 14 ... Temperature sensor, 15 ... Hot water temperature variable setting device, 16 ... Selection switch, 17 ... Combustion amount control circuit, 18 ... Flow rate control circuit, 22 ... Hot water supply amount setting section, 24 ... Contact (switching circuit), 25...
...Water temperature fixed setting device.
Claims (1)
水を加熱する熱交換器と、この熱交換器からの出
湯温度を可変する湯温可変設定器および出湯温度
を予め定められた温度に固定する湯温固定設定器
と、前記熱交換器からの出湯温度を検出する温度
センサと、前記熱交換器を流通する水量を検出す
る水量センサと、この水量センサの水流信号で動
作し、かつ前記温度センサの信号を検出し、前記
湯温可変設定器の設定値あるいは前記湯温固定設
定器の設定値になるようにバーナの燃焼量を制御
する燃料制御弁を駆動する燃焼量制御回路と、選
択スイツチと、この選択スイツチに駆動された
時、前記水量センサの信号をカウントし、その積
算値が給湯量設定部により予め設定された給湯量
に達したことを検出して給湯を停止する水バルブ
を駆動する流量制御回路と、前記選択スイツチを
動作させた時に、前記燃焼量制御回路の給湯設定
温度を予め定められた温度に固定する湯温固定設
定器に切替える切替回路を備えた給湯装置。1. A burner that burns fuel, a heat exchanger that heats water with this burner, a hot water temperature variable setting device that changes the temperature of hot water discharged from the heat exchanger, and a hot water temperature that fixes the hot water temperature that is discharged from the heat exchanger at a predetermined temperature. a fixed setting device, a temperature sensor that detects the temperature of hot water coming out of the heat exchanger, a water flow sensor that detects the amount of water flowing through the heat exchanger, and a water flow sensor that operates based on the water flow signal of the water flow sensor; a combustion amount control circuit that detects the signal and drives a fuel control valve that controls the combustion amount of the burner so as to reach the set value of the variable hot water temperature setter or the set value of the fixed hot water temperature setter; and a selection switch. , when driven by this selection switch, counts the signal from the water amount sensor, detects that the integrated value has reached the amount of hot water preset by the hot water amount setting section, and drives the water valve that stops the hot water supply. and a switching circuit that switches the hot water temperature fixing setter of the combustion amount control circuit to a predetermined temperature when the selection switch is operated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57175109A JPS5963443A (en) | 1982-10-05 | 1982-10-05 | Hot-water supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57175109A JPS5963443A (en) | 1982-10-05 | 1982-10-05 | Hot-water supplier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5963443A JPS5963443A (en) | 1984-04-11 |
| JPS6327619B2 true JPS6327619B2 (en) | 1988-06-03 |
Family
ID=15990417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57175109A Granted JPS5963443A (en) | 1982-10-05 | 1982-10-05 | Hot-water supplier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5963443A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60240951A (en) * | 1984-05-15 | 1985-11-29 | Matsushita Electric Ind Co Ltd | Hot water supplier |
| JPS60245948A (en) * | 1984-05-22 | 1985-12-05 | Matsushita Electric Ind Co Ltd | Hot-water supply control device |
| JPS61289263A (en) * | 1985-06-18 | 1986-12-19 | Matsushita Electric Ind Co Ltd | Hot-water supplying device for bath |
| JPS61295436A (en) * | 1985-06-24 | 1986-12-26 | Toto Ltd | Hot-water supplier |
| JPS6225714U (en) * | 1985-07-18 | 1987-02-17 | ||
| JPS6232919U (en) * | 1985-08-13 | 1987-02-26 | ||
| JPH0788976B2 (en) * | 1985-12-17 | 1995-09-27 | 松下電器産業株式会社 | Gas instant water heater |
| JPS62132348U (en) * | 1986-02-14 | 1987-08-20 | ||
| JPS63142653U (en) * | 1987-03-06 | 1988-09-20 | ||
| JPH0191838U (en) * | 1987-12-10 | 1989-06-16 | ||
| JPH02223762A (en) * | 1989-02-25 | 1990-09-06 | Rinnai Corp | Heating control device for hot water supply equipment |
| JP6355386B2 (en) * | 2014-03-31 | 2018-07-11 | 株式会社ガスター | Instant hot water unit |
-
1982
- 1982-10-05 JP JP57175109A patent/JPS5963443A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5963443A (en) | 1984-04-11 |
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