JPH0339227B2 - - Google Patents
Info
- Publication number
- JPH0339227B2 JPH0339227B2 JP61005885A JP588586A JPH0339227B2 JP H0339227 B2 JPH0339227 B2 JP H0339227B2 JP 61005885 A JP61005885 A JP 61005885A JP 588586 A JP588586 A JP 588586A JP H0339227 B2 JPH0339227 B2 JP H0339227B2
- Authority
- JP
- Japan
- Prior art keywords
- heat load
- water
- valve
- water valve
- opening
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 115
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はガス量を変化することにより給湯温度
を制御するガス瞬間式給湯装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a gas instantaneous water heater that controls the temperature of hot water by changing the amount of gas.
（従来の技術）
従来のガス瞬間式給湯装置においては、給水
量、給水温と無関係に出湯温度が一定となるよう
ガス量を制御するガス比例弁を備えている。さら
に、湯沸器の最大能力以上の熱負荷が要求された
場合には出湯温度が低下するので、これを防止す
るために最大能力を越える熱負荷要求のある場合
には、湯沸器の給水管又は給湯管には、自動的に
給水量を絞る水バルブが設けられている。この水
バルブは、直流モータによつて回動する弁体を備
え、弁体の回動に伴つて通水量を変化させる構造
であり、直流モータはバルブ制御手段（例えば、
マイクロプロセツサ）からの制御信号によりモー
タ駆動回路を介して所定の電圧を印加して駆動さ
れる構成である。例えば、印加電圧としては、バ
ルブ開駆動時には＋3.5V、バルブ閉駆動時には
−3.5Vが設定されており、水バルブの目標開度
が決定すると、直流モータには上記所定電圧が目
標開度に至るまで印加される。つまり、水バルブ
の目標開度に至るまで一様の開閉速度で水バルブ
を駆動し、最大能力を越える熱負荷要求がある場
合には、給水量を限界水量以下に抑え、確実に設
定温度の湯を出湯するようにしていた。(Prior Art) A conventional gas instantaneous water heater is equipped with a gas proportional valve that controls the amount of gas so that the hot water temperature remains constant regardless of the amount of water supplied and the temperature of the supplied water. Furthermore, if a heat load that exceeds the maximum capacity of the water heater is required, the hot water temperature will drop, so to prevent this, if a heat load that exceeds the maximum capacity is required, the water supply The pipe or hot water supply pipe is provided with a water valve that automatically throttles the amount of water supplied. This water valve includes a valve body that is rotated by a DC motor, and has a structure that changes the amount of water flowing as the valve body rotates.
The motor is configured to be driven by applying a predetermined voltage via a motor drive circuit in response to a control signal from a microprocessor. For example, the applied voltage is set to +3.5V when driving the valve to open, and -3.5V when driving the valve to close.When the target opening of the water valve is determined, the above-mentioned predetermined voltage is applied to the DC motor to reach the target opening. It is applied until the end. In other words, the water valve is driven at a uniform opening/closing speed until the water valve reaches its target opening, and if there is a heat load request that exceeds the maximum capacity, the water supply amount is kept below the limit water amount and the set temperature is reliably maintained. I was trying to get hot water out.
（発明が解決しようとする問題点）
ところが、上記従来のガス瞬間式給湯装置にお
いては、最大能力以上の熱負荷が要求された場
合、水バルブを駆動する直流モータには水バルブ
の目標開度に至るまで所定電圧が印加される構成
であることから、水バルブの閉止速度が一様とな
るため、目標開度をオーバーして、再び目標開度
に戻るという水バルブのハンチングを生じやす
く、その結果、給湯温度にもその影響を及ぼすと
いうおそれがある。(Problem to be Solved by the Invention) However, in the conventional gas instantaneous water heater described above, when a heat load exceeding the maximum capacity is required, the DC motor that drives the water valve has a target opening angle of the water valve. Since the configuration is such that a predetermined voltage is applied until the water valve reaches , the closing speed of the water valve becomes uniform, which tends to cause hunting of the water valve, where the water valve exceeds the target opening and returns to the target opening again. As a result, there is a possibility that the hot water supply temperature will also be affected.
そこで、本発明では、最大能力を越える熱負荷
要求があつた場合には、水バルブの閉止速度を目
標開度近傍では遅くすることにより、水バルブを
目標開度にスムーズに停止させ、水バルブのハン
チングを防止することを目的とするものである。 Therefore, in the present invention, when there is a heat load request that exceeds the maximum capacity, the closing speed of the water valve is slowed near the target opening to smoothly stop the water valve at the target opening. The purpose is to prevent hunting.
（問題点を解決する手段）
前記問題点を解決するため本発明に係るガス瞬
間式給湯装置は、ガス供給量を調節して得られる
最大熱負荷量を超える熱負荷量が要求された際
に、この要求熱負荷量と最大熱負荷量との差の熱
負荷量が予め設定した第１のしきい値を超えてい
る場合は水バルブの単位時間当りの開度変化を大
とする開度調節信号を出力し、差の熱負荷量が第
１のしきい値より小さい値の第２のしきい値未満
の場合は水バルブの開度の調節を停止し、差の熱
負荷量が第１のしきい値と第２のしきい値との間
にある場合は水バルブの単位時間当たり開度変化
を小とする開度調節信号を出力するバルブ制御手
段を備えたことを特徴とする。(Means for Solving the Problems) In order to solve the above problems, the gas instantaneous water heater according to the present invention provides a gas instantaneous hot water supply system that, when a heat load amount exceeding the maximum heat load amount obtained by adjusting the gas supply amount, is requested. , if the heat load difference between the required heat load amount and the maximum heat load amount exceeds a preset first threshold, the opening degree is increased to increase the change in the opening degree per unit time of the water valve. An adjustment signal is output, and if the difference in heat load is less than a second threshold value that is smaller than the first threshold, the adjustment of the opening degree of the water valve is stopped, and the difference in heat load is adjusted to the second threshold. The present invention is characterized by comprising a valve control means that outputs an opening adjustment signal that reduces the opening change per unit time of the water valve when the water valve is between the first threshold value and the second threshold value. .
（作用）
バルブ制御手段は、算出した要求熱負荷量とこ
の装置の最大熱負荷量との差の熱負荷量が第１の
しきい値を超えているか、第１と第２のしきい値
の間にあるか、第２のしきい値より小さいかに応
じて水バルブの開度調節条件を変更する。(Operation) The valve control means determines whether the difference between the calculated required heat load amount and the maximum heat load amount of this device exceeds a first threshold value, or whether the difference between the calculated required heat load amount and the maximum heat load amount of this device exceeds a first threshold value, The conditions for adjusting the opening degree of the water valve are changed depending on whether the value is between the second threshold value or smaller than the second threshold value.
その差が第１のしきい値を超えている場合、す
なわち最大熱負荷量に対して要求熱負荷量が極め
て過大または過小な場合、バルブ制御手段は水バ
ルブの開度を短時間で変化させるよう制御する。
この結果流量が減少するので流量と要求温度上昇
値の積に当たる要求熱負荷量の算出値が小さな値
となり、最大熱負荷量との差が第１のしきい値未
満になると、バルブ制御手段は水バルブの開度変
化をゆるやかにする。これにより、水バルブの開
度が絞りすぎとなつて、出湯温度が所望の設定温
度より低下することを防止する。 If the difference exceeds the first threshold, that is, if the required heat load is extremely excessive or small relative to the maximum heat load, the valve control means changes the opening degree of the water valve in a short period of time. control like this.
As a result, the flow rate decreases, so the calculated value of the required heat load amount, which is the product of the flow rate and the required temperature rise value, becomes a small value, and when the difference from the maximum heat load amount becomes less than the first threshold, the valve control means Slowly change the opening of the water valve. This prevents the opening of the water valve from becoming too narrow and the tapping temperature from falling below a desired set temperature.
さらに、算出した要求熱負荷量と最大熱負荷量
との差が第２のしきい値未満になると、このバル
ブ制御手段は水バルブの開度調節を停止するの
で、水バルブの開度調節のハンチングを防止する
ことができる。 Further, when the difference between the calculated required heat load amount and the maximum heat load amount becomes less than the second threshold, the valve control means stops adjusting the opening degree of the water valve. Hunting can be prevented.
よつて、水バルブの開度を短時間でハンチング
を伴うことなく効果的に調節することができ、給
湯温度を安定に保つことができる。 Therefore, the opening degree of the water valve can be effectively adjusted in a short time without hunting, and the hot water temperature can be kept stable.
（実施例）
以下に本発明の一実施例を図に基づいて説明す
る。(Example) An example of the present invention will be described below based on the drawings.
本実施例のガス瞬間式給湯装置は、第１図に示
すように、湯沸器１への入水温度と給水流量を検
知して、設定温度と設定効率により演算した値に
よりガス比例弁２がバーナー３へ送るガス量を増
減する形式のガス瞬間式給湯装置であり、ガスは
ガス供給管４を介してバーナー３へ送られてここ
で燃焼し、水は給水管５を介して熱交換器６へ入
り、ここで加熱されて給湯管７を通り水栓８へ供
給されるようになつている。 As shown in FIG. 1, the gas instantaneous water heater of this embodiment detects the temperature of water entering the water heater 1 and the flow rate of water supplied, and operates the gas proportional valve 2 based on the value calculated based on the set temperature and set efficiency. This is a gas instantaneous water heater that increases or decreases the amount of gas sent to the burner 3. Gas is sent to the burner 3 via the gas supply pipe 4 and burned there, and water is sent to the heat exchanger via the water supply pipe 5. 6, where it is heated and supplied to a faucet 8 through a hot water supply pipe 7.
ガス供給管４には、元電磁弁９と、ガス比例弁
２が前者を上流側に配置して設けられ、給水管５
には上流側より順次水バルブ１０、温度センサー
１１及び水量センサー１２が設けられている。 The gas supply pipe 4 is provided with a solenoid valve 9 and a gas proportional valve 2, with the former disposed on the upstream side, and the water supply pipe 5
A water valve 10, a temperature sensor 11, and a water amount sensor 12 are provided in this order from the upstream side.
これら元電磁弁９、ガス比例弁２、水バルブ１
０、温度センサー１１及び水量センサー１２は
夫々コントロールボツクス１３に電気的に連絡し
ており、上記温度センサー１１は入水温度を検知
して信号Ａを、水量センサー１２は入水量を検知
して信号Ｂを夫々コントロールボツクス１３に送
出する。 These original solenoid valves 9, gas proportional valves 2, water valves 1
0. The temperature sensor 11 and the water amount sensor 12 are each electrically connected to the control box 13, and the temperature sensor 11 detects the temperature of the water entering and sends a signal A, and the water amount sensor 12 detects the amount of water entering and sends the signal B. are sent to the control box 13, respectively.
コントロールボツクス１３は、第１図に示すよ
うに、この装置をON、OFFさせるメインスイツ
チ１４、温度設定ダイヤル１５や、第２図に示す
ように、水量センサー１２からの検出信号Ｂに基
づいて水量を検出する水量検出回路１６、給水温
度センサー１１の検出信号Ａおよび温度設定ダイ
ヤル１５の設定温度をデイジタル信号に変換する
Ａ／Ｄ変換回路１７、マイクロプロセツサ１８、
バルブ駆動回路２３およびガス比例弁駆動回路
（図示省略）を備えている。 As shown in FIG. 1, the control box 13 includes a main switch 14 for turning the device on and off, a temperature setting dial 15, and a water flow rate sensor 12 based on a detection signal B as shown in FIG. A/D conversion circuit 17 that converts the detection signal A of the water supply temperature sensor 11 and the set temperature of the temperature setting dial 15 into digital signals, a microprocessor 18,
It includes a valve drive circuit 23 and a gas proportional valve drive circuit (not shown).
マイクロコンピユータ１８は、第２図に示すよ
うに水量、設定温度、給水温度を示す各信号から
装置の能力に対応した水量、設定温度、および給
水温度の各信号QH，TS，TCに変換する水量デー
タ変換手段１９および温度データ変換手段２０
と、さらに水量信号QH、設定温度信号TS、給水
温度TCに基づいて要求熱負荷を演算する要求熱
負荷演算手段２１と、要求熱負荷の演算値に基づ
いて要求熱負荷が最大能力を越えているかを判別
し、超えている場合に、水バルブを制御するバル
ブ制御手段２２とから構成されている。 As shown in FIG. 2, the microcomputer 18 converts the water volume, set temperature, and water supply temperature signals Q H , T S , and T C corresponding to the capacity of the device from the signals indicating the water volume, set temperature, and water supply temperature. Water amount data conversion means 19 and temperature data conversion means 20 to be converted
and a required heat load calculation means 21 that calculates the required heat load based on the water amount signal Q H , the set temperature signal T S , and the water supply temperature T C ; It is comprised of a valve control means 22 that determines whether or not the water exceeds the water pressure, and controls the water valve if the water water exceeds the water pressure.
また、上記水バルブ１０は、モータの駆動に伴
つて弁体を回動させ、通水面積を変化させる構造
であり、モータは、例えば、−3.5Vを印加すると
バルブを閉方向に駆動する構成である。 The water valve 10 has a structure in which the valve body is rotated as the motor is driven to change the water passing area, and the motor is configured to drive the valve in the closing direction when, for example, -3.5V is applied. It is.
このようなガス瞬間式給湯装置では、要求熱負
荷演算手段２１において、給水温TCと、設定温
度TSと、給水量QHとに基づいて、要求熱負荷F1
が演算される。この演算値F1に基づいてガス比
例弁駆動回路が駆動し、要求熱負荷に必要なガス
量がバーナー３に送給される。また、水バルブ制
御手段２２においては、上記演算値F1に基づい
て、湯沸器１の最大能力を越えているかどうかの
判別が行なわれ、最大能力を越えている場合に
は、設定温度における限界水量に対応して水バル
ブ１０を絞る目標開度領域が決定される。また、
目標開度領域に到達する所定範囲では水バルブ１
０の開閉駆動の速度を遅くするよう、予め設定さ
れている。したがつて、目標開度領域が設定され
ると、バルブ駆動回路２３によつて、一定の閉止
速度で水バルブ１０が閉止駆動されるとともに、
上記所定範囲内では遅い速度で閉止駆動される。
本実施例では上記所定範囲内では−3.5Vでデユ
ーテイ比が約10％程度のパルス電圧を直流モータ
に印加して閉止速度を遅くし、それ以外の範囲で
は−3.5Vの電圧を印加して速い閉止速度で水バ
ルブ１０を駆動するようにしている。 In such a gas instantaneous water heater, the required heat load calculation means 21 calculates the required heat load F 1 based on the water supply temperature T C , the set temperature T S and the water supply amount Q H
is calculated. The gas proportional valve drive circuit is driven based on this calculated value F1 , and the amount of gas required for the required heat load is supplied to the burner 3. In addition, in the water valve control means 22, it is determined whether the maximum capacity of the water heater 1 is exceeded based on the above-mentioned calculated value F1 , and if the maximum capacity is exceeded, the set temperature is A target opening range for throttling the water valve 10 is determined in accordance with the water limit. Also,
Water valve 1 in a predetermined range reaching the target opening range
It is preset to slow down the speed of opening/closing drive of 0. Therefore, when the target opening range is set, the valve drive circuit 23 drives the water valve 10 to close at a constant closing speed, and
Within the above predetermined range, the closing drive is performed at a slow speed.
In this example, a pulse voltage of -3.5V with a duty ratio of about 10% is applied to the DC motor within the above-mentioned predetermined range to slow down the closing speed, and a voltage of -3.5V is applied in other ranges. The water valve 10 is driven at a fast closing speed.
また、上記所定範囲の判定は、本実施例では、
給水の熱量に基づいて行なつている。例えば、第
３図に示すように、目標開度をf0、目標開度領域
をf1〜f-1の間、目標開度領域から所定範囲をf1〜
f2、f-1〜f-2と、それぞれの熱量で設定されてい
る。したがつて、最大能力以上の熱負荷要求があ
つた場合には、第４図に示すように、要求熱負荷
ＦがＦ＞f2の場合には、直流モータに−3.5Vの電
圧が印加され、水バルブ１０が速い速度で連続閉
駆動される（ステツプP1）。水バルブ１０の開度
が所定範囲内にある場合、即ちf1＜Ｆ＜f2の場合
には直流モータに−3.5Vのパルス電圧が印加さ
れ、水バルブ１０をデユーテイ閉動作させる（ス
テツプP2）。f1＜Ｆ＜f2でない場合には次のステ
ツプP3に進み目標開度領域内にあるかどうか、
即ちf-1＜Ｆ＜f1の判別が行なわれ、肯定の場合
には直流モータへの電圧の印加が停止され、水バ
ルブ１０の閉止駆動が停止される。このように、
目標開度領域に至る所定範囲での水バルブ１０の
閉止速度が低下するので、水バルブ１０の閉止動
作を目標開度領域にスムースに至らしめることが
できる。 In addition, in this embodiment, the determination of the predetermined range is as follows:
This is done based on the calorific value of the water supply. For example, as shown in FIG. 3, the target opening degree is f 0 , the target opening area is between f 1 and f -1, and the predetermined range from the target opening area is between f 1 and f -1 .
The heat values are set at f 2 and f -1 to f -2 , respectively. Therefore, if there is a heat load request that exceeds the maximum capacity, as shown in Figure 4, if the required heat load F is F> f2 , a voltage of -3.5V is applied to the DC motor. Then, the water valve 10 is continuously driven to close at a high speed (step P 1 ). When the opening degree of the water valve 10 is within a predetermined range, that is, when f 1 <F < f 2 , a pulse voltage of -3.5V is applied to the DC motor, and the water valve 10 is operated to close the duty cycle (step P 2 ). If f 1 < F < f 2 , proceed to the next step P 3 and check whether it is within the target opening range.
That is, it is determined whether f -1 <F < f 1 , and if it is affirmative, the application of voltage to the DC motor is stopped, and the closing drive of the water valve 10 is stopped. in this way,
Since the closing speed of the water valve 10 decreases in the predetermined range leading to the target opening range, the closing operation of the water valve 10 can smoothly reach the target opening range.
次にステツプP3において否定である場合には、
ステツプP4に進む。これらのステツプP4は水バ
ルブ１０の閉止動作が絞り過ぎとなるため、これ
を防止するために設けられたものである。即ち、
ステツプP4においてf-2＜Ｆ＜f-1である場合に
は、＋3.5Vのパルス電圧が直流モータに印加さ
れ、遅い速度で開駆動され、肯定の場合には＋
3.5Vの電圧が印加され、速い速度で開駆動され、
これを繰り返す。 Next, if step P3 is negative,
Proceed to step P4 . These steps P4 are provided to prevent the closing operation of the water valve 10 from being too restrictive. That is,
In step P4 , if f -2 < F < f -1 , a pulse voltage of +3.5V is applied to the DC motor, which is driven open at a slow speed;
A voltage of 3.5V is applied and driven open at a fast speed,
Repeat this.
したがつて、最大能力を越える熱負荷要求があ
ると、設定温度での限界水量となるよう目標開度
領域まで水バルブが閉駆動するが、目標開度領域
に到達する所定範囲では直流モータにはパルス状
の電圧が印加されることとなり、水バルブの閉止
速度が遅くなり、その結果、水バルブがハンチン
グを生ずるおそれを防止できる。 Therefore, when there is a heat load request that exceeds the maximum capacity, the water valve is driven to close up to the target opening range to reach the limit water flow at the set temperature, but in the predetermined range where the target opening range is reached, the DC motor is closed. Since a pulsed voltage is applied, the closing speed of the water valve is slowed down, and as a result, it is possible to prevent the water valve from hunting.
尚、上記実施例においては、目標開度領域に到
達する所定範囲では所定のデユーテイ比を有する
パルス状の電圧を直流モータに印加する構成とし
たが、これに限らず、第５図に示すように、所定
の比例係数を有する電圧を直流モータに印加する
構成にすることもできる。この場合、水バルブ駆
動の判断は、第６図のフローチヤートの如くな
り、上記同様の効果を得ることができる。 In the above embodiment, a pulse voltage having a predetermined duty ratio is applied to the DC motor in a predetermined range in which the target opening range is reached; however, the present invention is not limited to this. Alternatively, a configuration may be adopted in which a voltage having a predetermined proportionality coefficient is applied to the DC motor. In this case, the water valve drive decision is made as shown in the flowchart of FIG. 6, and the same effect as described above can be obtained.
（発明の効果）
以上説明したようにこの発明に係るガス瞬間式
給湯装置は、この給湯装置の最大熱負荷量と要求
熱負荷量との差を第１および第２のしきい値と比
較して、水バルブの開度調節を急速、緩速、開度
維持の３段階に制御するバルブ制御手段を備えた
ので、水バルブの開度を短時間でハンチング等を
伴うことなく効果的に調節することができ、給湯
温度を安定に保つことができる。(Effects of the Invention) As explained above, the gas instantaneous water heater according to the present invention compares the difference between the maximum heat load amount and the required heat load amount of the water heater with the first and second threshold values. The system is equipped with a valve control means that controls the opening of the water valve in three stages: rapid, slow, and maintaining the opening, making it possible to effectively adjust the opening of the water valve in a short period of time without hunting or the like. This allows the hot water temperature to be kept stable.
第１図ないし第４図は本発明の一実施例を示
し、第１図は給湯装置の模式図、第２図は給湯装
置のブロツク構成図、第３図、第４図は最大能力
状態時の水バルブの閉止駆動を説明する図、およ
びその閉止駆動処理を示すフローチヤート、第５
図および第６図は本発明の他の実施例を示し、第
５図、第６図は最大能力状態時の水バルブの閉止
駆動を説明する図、およびその閉止駆動処理を示
すフローチヤートである。
図面中、２……ガス比例弁、１０……水バル
ブ、２２……バルブ制御手段、f0……目標開度、
である。
Figures 1 to 4 show an embodiment of the present invention. Figure 1 is a schematic diagram of a water heater, Figure 2 is a block diagram of the water heater, and Figures 3 and 4 are at maximum capacity. A diagram explaining the closing drive of the water valve of , and a flowchart showing the closing drive process, No. 5
Figures 5 and 6 show other embodiments of the present invention, and Figures 5 and 6 are diagrams illustrating the closing drive of the water valve in the maximum capacity state, and a flowchart showing the closing drive process. . In the drawing, 2... gas proportional valve, 10... water valve, 22... valve control means, f 0 ... target opening degree,
It is.
Claims (1)
る信号とに基づいて要求熱負荷量を算出する要求
熱負荷量演算手段の出力に基づいてガス比例弁の
開度を調節するとともに、算出した要求熱負荷量
がこの装置の最大熱負荷量を超えている場合はバ
ルブ制御手段が水バルブの開度を絞る信号を出力
して設定温度の給湯を行なうガス瞬間式給湯装置
において、前記バルブ制御手段は前記要求熱負荷
量とこの装置の最大熱負荷量との差が予め設定し
た第１のしきい値を超えている場合は前記水バル
ブをその水バルブの単位時間当りの開度変化が大
となるよう開度調節信号を出力し、前記要求熱負
荷量と前記最大熱負荷量との差が前記第１のしき
い値より小さい値であつて予め設定した第２のし
きい値未満の場合は前記水バルブの開度を調節す
る信号の出力を停止し、前記要求熱負荷量と前記
最大熱負荷量との差が前記第１のしきい値と前記
第２のしきい値との間にある場合は前記水バルブ
の単位時間当りの開度変化が小となるよう開度調
節信号を出力するよう構成したことを特徴とする
ガス瞬間式給湯装置。1 Adjust the opening degree of the gas proportional valve based on the output of the required heat load calculation means that calculates the required heat load based on the signal related to the flow rate and the signal related to the required temperature rise value, and In a gas instantaneous hot water supply system, the valve control means outputs a signal to reduce the opening of the water valve when the required heat load exceeds the maximum heat load of the system, thereby supplying hot water at a set temperature. If the difference between the required heat load amount and the maximum heat load amount of this device exceeds a first threshold value set in advance, the means controls the water valve so that the opening degree of the water valve changes per unit time. output an opening adjustment signal such that the difference between the required heat load amount and the maximum heat load amount is a value smaller than the first threshold value and less than a preset second threshold value; In this case, the output of the signal for adjusting the opening degree of the water valve is stopped, and the difference between the required heat load amount and the maximum heat load amount is equal to the first threshold value and the second threshold value. 2. A gas instantaneous hot water supply device characterized in that, when the difference is between the two, an opening adjustment signal is output so that the change in the opening of the water valve per unit time becomes small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP588586A JPS62162849A (en) | 1986-01-13 | 1986-01-13 | Gas instantaneous type hot water supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP588586A JPS62162849A (en) | 1986-01-13 | 1986-01-13 | Gas instantaneous type hot water supplier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62162849A JPS62162849A (en) | 1987-07-18 |
| JPH0339227B2 true JPH0339227B2 (en) | 1991-06-13 |
Family
ID=11623350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP588586A Granted JPS62162849A (en) | 1986-01-13 | 1986-01-13 | Gas instantaneous type hot water supplier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62162849A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113232A (en) * | 1989-09-26 | 1991-05-14 | Rinnai Corp | Control device for hot water feeder |
| JPH03260551A (en) * | 1990-03-08 | 1991-11-20 | Rinnai Corp | Controlling device for water heater |
| JPH03260552A (en) * | 1990-03-08 | 1991-11-20 | Rinnai Corp | Controller of water heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4983040A (en) * | 1972-12-14 | 1974-08-09 | ||
| JPS57104042A (en) * | 1980-12-20 | 1982-06-28 | Matsushita Electric Ind Co Ltd | Hot water temperature controller for gas hot water supplier |
| JPS5828950A (en) * | 1981-08-17 | 1983-02-21 | Matsushita Electric Ind Co Ltd | Controlling device of hot water supplier |
-
1986
- 1986-01-13 JP JP588586A patent/JPS62162849A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4983040A (en) * | 1972-12-14 | 1974-08-09 | ||
| JPS57104042A (en) * | 1980-12-20 | 1982-06-28 | Matsushita Electric Ind Co Ltd | Hot water temperature controller for gas hot water supplier |
| JPS5828950A (en) * | 1981-08-17 | 1983-02-21 | Matsushita Electric Ind Co Ltd | Controlling device of hot water supplier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62162849A (en) | 1987-07-18 |
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