JPS6220465B2 - - Google Patents
Info
- Publication number
- JPS6220465B2 JPS6220465B2 JP56131146A JP13114681A JPS6220465B2 JP S6220465 B2 JPS6220465 B2 JP S6220465B2 JP 56131146 A JP56131146 A JP 56131146A JP 13114681 A JP13114681 A JP 13114681A JP S6220465 B2 JPS6220465 B2 JP S6220465B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- amount
- temperature
- supply
- hot 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 106
- 239000008400 supply water Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
- B23F23/1237—Tool holders
- B23F23/1281—Honing, shaving or lapping tool holders
-
- 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
- F23N2223/00—Signal processing; Details thereof
- F23N2223/12—Integration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring 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
- F23N2235/14—Fuel valves electromagnetically operated
Description
【発明の詳細な説明】
本発明は、ガス・石油・電気等を熱源とする温
水器の出湯温度制御に関し、過大負荷時には設定
湯温が得られないという従来の装置の欠点を排除
し、常に希望の湯温が得られると共に、供給総水
量設定器の指示によつて使用者の望む湯量を供給
する新しい制御装置の提供を目的とする。[Detailed Description of the Invention] The present invention relates to the hot water outlet temperature control of water heaters using gas, oil, electricity, etc. as heat sources, and eliminates the drawback of conventional devices that the set hot water temperature cannot be obtained when overloaded. The purpose of the present invention is to provide a new control device that can obtain the desired hot water temperature and supply the amount of hot water desired by the user according to instructions from a total water supply amount setting device.
以下、ガス湯沸器を例に挙げて説明する。 The explanation will be given below using a gas water heater as an example.
第５図は、従来のガス湯沸器の構成図で、バー
ナ１での燃焼熱と水とを熱交換器２で熱交換し、
温水を提供する。温度制御器３へは、出湯温度検
知器４からの信号TWと、温度設定器５からの
信号TWRが入力し、その偏差TER＝TWR−TW
から所定燃焼量を決定し、供給熱量制御器６へ
制御信号を出力し出湯温制御を実施している。７
は給湯箇所を示し、複数箇所の場合もある。ここ
で、出湯温度検知器４としてはサーミスタ、また
温度制御器３としてはPiD制御器等がよく用いら
れる。 FIG. 5 is a configuration diagram of a conventional gas water heater, in which combustion heat in a burner 1 and water are exchanged in a heat exchanger 2.
Provide hot water. The signal TW from the hot water temperature detector 4 and the signal TWR from the temperature setting device 5 are input to the temperature controller 3, and their deviation TER=TWR−TW
A predetermined combustion amount is determined from the above, and a control signal is output to the supply heat amount controller 6 to control the outlet hot water temperature. 7
indicates the hot water supply location, and there may be multiple locations. Here, a thermistor is often used as the hot water temperature detector 4, and a PiD controller or the like is often used as the temperature controller 3.
第４図は、ガス湯沸器の出湯量ＦWと温度上昇
△Ｔとの関係を示す図である。図の実線は最大燃
焼量Qgnaxでの特性を表している。すなわち、最
大燃焼量Qgnaxと、温度上昇△Ｔと、流量ＦW
は、燃焼効率をηとすれば、
η・Qgnax＝ＦW・△Ｔ ……(1)
となり、さらに
△Ｔ＝η・Ｑｇｎａｘ／ＦＷ ……(2)
の関係となる。従つて、第４図の実線で示された
以上の温度上昇は存在しない。例えば、最大燃焼
量Qgnaxのとき出湯量がＦW1であれば、温度上昇
△Ｔは図示されているように△T1となる。前述
の温度制御器３は、温度設定器による設定値
TWRと入水温度TWiとの差、つまり温度上昇値
△Ｔが△T1のとき、出湯量ＦWがＦW1以下におい
て有効に動作する。仮りＦW＞ＦW1では制御不可
能となり、出湯温度TWは設定温度TWRに達
し得ない。 FIG. 4 is a diagram showing the relationship between the hot water output amount F W of the gas water heater and the temperature rise ΔT. The solid line in the figure represents the characteristics at the maximum combustion amount Qg nax . In other words, the maximum combustion amount Qg nax , the temperature rise △T, and the flow rate F W
If the combustion efficiency is η, then η・Qg nax = FW・△T...(1), and furthermore, the relationship is as follows: △T=η・Qgnax / FW ...(2). Therefore, there is no temperature increase beyond that indicated by the solid line in FIG. For example, if the amount of hot water released is F W1 when the maximum combustion amount is Qg nax , the temperature rise ΔT becomes ΔT 1 as shown in the figure. The above-mentioned temperature controller 3 controls the set value by the temperature setting device.
When the difference between TWR and the incoming water temperature TWi, that is, the temperature increase value ΔT, is ΔT 1 , it operates effectively when the hot water output amount F W is less than F W1 . If F W >F W1 , control becomes impossible and the hot water temperature TW cannot reach the set temperature TWR.
このように、最大燃焼量Qgnaxによつて出湯温
度制御可能な出湯量ＦWが制限されるのである。
この現象は、ガス湯沸器に限らず他の燃料を用い
る温水器においても同様である。このような従来
の温水器にて、例えば浴槽に湯を落とし込む場合
には、高温湯と水とをミキシングして用いるか、
当初適当な湯温が得られるように給湯口にて湯量
を絞つておく方法等があるが、複数箇所で利用す
るときにはバスタブ以外の給湯箇所での湯量操作
により湯温の変動が激しく、希望の湯温で希望の
湯量を得ることがなかなか困難であつた。 In this way, the maximum combustion amount Qg nax limits the amount of hot water F W that can control the hot water temperature.
This phenomenon is not limited to gas water heaters, but also applies to water heaters using other fuels. For example, when pouring hot water into a bathtub with such a conventional water heater, it is necessary to mix high-temperature water and cold water, or
There are methods such as restricting the amount of hot water at the hot water supply port so that the appropriate water temperature is initially obtained, but when using the bathtub in multiple locations, the water temperature fluctuates drastically due to the amount of hot water being adjusted at hot water supply locations other than the bathtub, making it impossible to reach the desired temperature. It was quite difficult to obtain the desired amount of hot water at the desired temperature.
本発明は、上記従来の温水器の湯温制御に見ら
れるような欠点を解消した湯温制御装置を提供す
るもので、常に設定温度の湯が供給出来ると共
に、供給総水量設定器の信号に従つて希望の湯量
を供給可能なものである。 The present invention provides a hot water temperature control device that eliminates the drawbacks seen in the hot water temperature control of the conventional water heater described above. Therefore, it is possible to supply the desired amount of hot water.
第１図は、本発明のガス湯沸器の構成図であ
る。第５図と同一番号のものは、同一機能を有す
る装置である。水量制御器８では、出湯温度検出
器４からの信号TWと、温度設定器５からの信
号TWRと、供給総水量設定器９からの信号
TOTWを入力し、前述の温度偏差TER＝TWR−
TWに依存した信号を出力し、供給水量制御装
置１０を制御している。温水器使用開始時は、最
大流量ＦWnaxが得られるように前記装置１０を初
期化しておき、湯温制御が定常状態に達した時点
で前記偏差TERが所定値以上のとき、TERに応
じて供給水量を減らすように前記供給水量制御装
置１０を操作し、TERが零に近づくように水量
を制御する。上記の湯温制御が定常状態に達した
時点は、制御対象であるプロセスの遅れが大きい
系ほど特に問題となり、使用開始後からの一定期
間は過渡状態としてタイマー要素でも判定出来
る。 FIG. 1 is a block diagram of a gas water heater of the present invention. Devices with the same numbers as in FIG. 5 are devices having the same functions. The water flow controller 8 receives the signal TW from the hot water temperature detector 4, the signal TWR from the temperature setting device 5, and the signal from the total supply water amount setting device 9.
Input TOTW and use the temperature deviation TER=TWR− as mentioned above.
A signal depending on the TW is output to control the water supply amount control device 10. When starting to use the water heater, the device 10 is initialized so that the maximum flow rate F Wnax can be obtained, and when the hot water temperature control reaches a steady state and the deviation TER is greater than a predetermined value, the device 10 is activated according to TER. The water supply amount control device 10 is operated to reduce the amount of water supplied, and the water amount is controlled so that TER approaches zero. The point at which the above-mentioned hot water temperature control reaches a steady state is particularly problematic in systems where the delay in the process to be controlled is large, and a certain period after the start of use can be determined by a timer element as a transient state.
この制御の様子を第２図に示してある。ａ，ｂ
はそれぞれ、使用開始後の経過時間に対する供給
水量ＦWと出湯温度TWの変化を示しており、t1
時点で定常状態と判定し、偏差TERから流量を
ＦWnax→ＦW1と変化されたことにより、出湯温度
が設定温度に近づいていく様子が分かる。ここで
の偏差TERに応じた流量操作量は、少量ずつ段
階的に変化させてもよいが、第４図の特性から目
標値となるＦWを決定し一度に動かすことで温度
の収束時間を縮めることが出来る。 The state of this control is shown in FIG. a, b
respectively indicate the changes in the supplied water amount F W and the hot water outlet temperature TW with respect to the elapsed time after the start of use, and t 1
At this point, the steady state is determined, and the flow rate is changed from F Wnax to F W1 based on the deviation TER, so it can be seen that the hot water temperature approaches the set temperature. The flow rate operation amount according to the deviation TER may be changed in small steps in small steps, but by determining the target value FW from the characteristics shown in Figure 4 and moving it all at once, the temperature convergence time can be changed. It can be shortened.
また、定常状態において供給熱量が最大の
Qgnaxでなく、しかも供給水量がＦWnaxの最大値
でないときには、供給水量を増加すべく供給水量
制御装置１０を動作させ、給湯箇所７での規制に
よる最大流量で設定温度の湯が得られるようにす
る。 Also, in steady state, the amount of heat supplied is the maximum.
When Qg nax is not reached and the supplied water amount is not the maximum value of F Wnax , the supplied water amount control device 10 is operated to increase the supplied water amount so that hot water at the set temperature can be obtained at the maximum flow rate according to regulations at the hot water supply point 7. Make it.
さらに第１図の１１は浴槽等の貯湯器を示し、
上記で説明した設定温度の湯が、前記供給総水量
設定器９の信号に従つてある量まで供給されてい
る。つまり、供給水量の積算を水量制御器８で実
施し、設定値と等しくなつた時点で前記供給水量
制御装置１０を閉止する方向に動作させる。ま
た、前記装置１０に閉止機能がない場合には、ブ
ザーあるいはランプ等の報知手段を用いたりして
利用者に知らしめることも出来る。さらに、閉止
機能付のものに関しても供給終了を知らせる前記
報知手段を併用すれば使い勝手の向上が望めるの
は当然である。 Furthermore, 11 in FIG. 1 indicates a water storage device such as a bathtub,
Hot water at the set temperature described above is supplied up to a certain amount according to the signal from the total water supply amount setting device 9. That is, the amount of water supplied is integrated by the water amount controller 8, and when it becomes equal to the set value, the water amount controller 10 is operated in the direction of closing. Further, if the device 10 does not have a closing function, the user may be notified by using a notification means such as a buzzer or a lamp. Furthermore, it goes without saying that even for products with a closing function, it is possible to improve the usability by using the above-mentioned notification means for notifying the end of supply.
ここで、供給水量の積算、つまり、設定湯温の
供給量積算に関して、給湯箇所での流量規制によ
り前記供給水量制御装置での最大値以下の供給水
量となつているときには、定常状態での温水器供
給熱量制御信号を検知することにより、第４図の
特性と合わせて実流量の換算、そして積算も可能
である。また、浴槽等の大容量落とし込みでは、
通常の温水器のプロセス応答遅れは無視出来る程
短いが、過渡時での補償演算も可能である。 Here, regarding the integration of the supply water amount, that is, the supply amount integration of the set hot water temperature, if the water supply amount is less than the maximum value of the water supply amount control device due to the flow rate regulation at the hot water supply point, hot water in a steady state is By detecting the heat supply control signal, it is possible to convert and integrate the actual flow rate in conjunction with the characteristics shown in FIG. In addition, when dropping large volumes such as bathtubs,
The process response delay of a normal water heater is so short that it can be ignored, but it is also possible to perform compensation calculations during transient times.
次に第３図で本発明の具体的な実施例を説明す
る。ここでは、各種演算及びシーケンス制御にマ
イクロコンピユータ１２を用いた例を挙げ、
TER、TOTWの取り込みと、温度制御器及び水
量制御器の駆動に関して述べる。図中の４，５，
６，９，１０は前述同様に出湯温度検知器として
のサーミスタ、温度設定器、供給熱量制御器、供
給総水量設定器、供給水量制御装置を示す。 Next, a specific embodiment of the present invention will be explained with reference to FIG. Here, we will give an example in which the microcomputer 12 is used for various calculations and sequence control.
This section describes the intake of TER and TOTW, and the drive of the temperature controller and water flow controller. 4, 5, in the diagram
6, 9, and 10 indicate a thermistor as a hot water temperature detector, a temperature setting device, a supply heat amount controller, a supply total water amount setting device, and a supply water amount control device as described above.
まず温度偏差TERの取り込みを説明する。設
定温度TWRは、前記温度設定器５の可変抵抗と
直列接続された抵抗１３との分圧ＶTWRとして抵
抗１４を介して演算増幅器１５に入力している。
さらに出湯温度TWは、前記サーミスタ４と直
列接続された抵抗１６との分圧ＶTWOとして抵抗
１７を介して前述の１５のＶTWRと同一入力部に
印加されている。この演算増幅器１５ではいわゆ
る加算器を形成しており、その基準電圧は抵抗１
８，１９の分圧で決まり、増幅率を定める抵抗２
０によりＶTWOとＶTWRの差が出力として現れ、次
段の比較器２１の反転入力となつている。この比
較器２１はTERの値、つまり電位変換されたＶT
ＷＲをＡ／Ｄ変換して前述のマイコン１２の入力P1
とするもので、基準入力側は、マイコン出力部P3
によつて制御されるＤ／Ａコンバータ２２の出力
である。このようにして、偏差TERをマイコン
が取り込んでいる。 First, we will explain how to capture the temperature deviation TER. The set temperature TWR is input to the operational amplifier 15 via the resistor 14 as a divided voltage V TWR between the variable resistor of the temperature setting device 5 and the resistor 13 connected in series.
Further, the tapped water temperature TW is applied as a partial voltage V TWO between the thermistor 4 and a resistor 16 connected in series through a resistor 17 to the same input section as the above-mentioned 15 V TWR . This operational amplifier 15 forms a so-called adder, and its reference voltage is set at a resistor 1.
Resistor 2 is determined by the partial voltage of 8 and 19 and determines the amplification factor.
0, the difference between V TWO and V TWR appears as an output, which serves as the inverting input of the comparator 21 in the next stage. This comparator 21 calculates the value of TER, that is, the potential-converted V T
WR is A/D converted and input to the microcomputer 12 mentioned above P 1
The reference input side is the microcomputer output section P3 .
This is the output of the D/A converter 22 controlled by the D/A converter 22. In this way, the microcomputer takes in the deviation TER.
前述の偏差TERから、例えばPiD制御演算方式
に沿つて計算された供給熱量制御装置への出力
が、この例では前記Ｄ／Ａコンバータ２２からマ
イコン出力P4で制御されるアナログスイツチ２３
と駆動部２４を介して、供給熱量制御装置６へ伝
達されている。前記スイツチ２３は、Ｄ／Ａコン
バータを入出力に共用するための選択器の役目で
ある。 The output to the supply heat amount control device calculated from the above-mentioned deviation TER according to the PiD control calculation method, for example, is output to the analog switch 23 controlled by the microcomputer output P 4 from the D/A converter 22 in this example.
and is transmitted to the supply heat amount control device 6 via the drive unit 24. The switch 23 serves as a selector for sharing the D/A converter for input and output.
また、供給総水量設定器９の可変抵抗は、直列
抵抗２５との分圧ＶTOTWとして比較器２６に入力
としており、TER同様にＤ／Ａ変換されてマイ
コン入力P2となつている。 Further, the variable resistor of the total water supply amount setting device 9 is inputted to the comparator 26 as a partial voltage V TOTW with the series resistor 25, and similarly to TER, it is D/A converted and becomes the microcomputer input P2 .
次に本例の水量制御では、前記TERから演算
された所定時間だけ供給水量制御装置１０を駆動
すべく出力信号を発するのである。流量を絞ると
きには、マイコン出力P5をLOWレベルにし、抵
抗２６，２７を介してトランジスタ２８をオンさ
せ、２９のリレーＲy1を駆動して、流量を絞り方
向に操作するモータコイル３０に通電すべくリレ
ー接点３１を導通させる。この導通させる時間に
よつてモータの回転角が定まり、供給水量制御装
置１０を駆動している。同様の操作手段によつて
流量を増加させるときには、抵抗３２，３３、ト
ランジスタ３４、リレーＲy2３５を介して、モー
タコイル３６に通電すべく、リレー接点３７を閉
じるのである。 Next, in the water flow control of this example, an output signal is generated to drive the supply water flow control device 10 for a predetermined time calculated from the TER. When restricting the flow rate, the microcomputer output P5 is set to LOW level, the transistor 28 is turned on via the resistors 26 and 27, the relay R y1 of 29 is driven, and the motor coil 30, which operates the flow rate in the direction of restriction, is energized. The relay contact 31 is made conductive. The rotation angle of the motor is determined by this conduction time, and the supplied water amount control device 10 is driven. When the flow rate is increased by the same operating means, the relay contact 37 is closed so that the motor coil 36 is energized via the resistors 32, 33, the transistor 34, and the relay R y2 35.
ところで、水量制御器としての演算部では
TERを零に近づけるように水量制御すると共
に、前記供給総水量設定器９からの信号TOTW
に応じて前述の如く湯の供給を停止するため供給
水量制御装置１０を閉止させたり、報知手段を利
用したりするのである。 By the way, in the calculation section as a water flow controller,
The water amount is controlled so that TER approaches zero, and the signal TOTW from the total water supply amount setting device 9 is controlled.
In response to this, the water supply amount control device 10 is closed to stop the supply of hot water as described above, or the notification means is used.
以上述べたように本発明の温水器制御装置に依
れば、出湯量ＦWを常に出湯温度制御可能な範囲
に限定するので、希望した温度の湯がいつでも得
られるという優れば効果と共に、希望した量の湯
を貯めることが出来、特に風呂落とし込みにおい
ては非常に便利な機能を提供することが可能とな
る。 As described above, according to the water heater control device of the present invention, the amount of hot water F W is always limited to a range in which the hot water temperature can be controlled, so it not only has the advantageous effect of being able to obtain hot water at the desired temperature at any time, but also It is possible to store a large amount of hot water, providing a very convenient function, especially when bathing.
第１図は本発明の一実施例を示すガス湯沸器の
制御回路の構成図、第２図ａ，ｂはそれぞれ本発
明の制御装置による出湯量と出湯温度の応答特性
図、第３図は本発明の具体回路図、第４図はガス
湯沸器の出湯量と温度上昇との関係を示す特性
図、第５図は従来のガス湯沸器の構成図である。
３……温度制御器、４……出湯温度検出器、５
……温度設定器、６……供給熱量制御器、８……
水量制御器、９……供給総水量設定器、１０……
供給水量制御装置。
FIG. 1 is a configuration diagram of a control circuit for a gas water heater showing an embodiment of the present invention, FIGS. 2a and b are response characteristic diagrams of hot water output amount and hot water temperature by the control device of the present invention, and FIG. 3 4 is a specific circuit diagram of the present invention, FIG. 4 is a characteristic diagram showing the relationship between hot water output amount and temperature rise of a gas water heater, and FIG. 5 is a configuration diagram of a conventional gas water heater. 3... Temperature controller, 4... Hot water temperature detector, 5
... Temperature setting device, 6 ... Supply heat amount controller, 8 ...
Water flow controller, 9... Total supply water flow setting device, 10...
Supply water control device.
Claims (1)
前記温度設定器の信号と前記出湯温度検出器の信
号の差（TER）に依存して前記温水器供給熱量
を制御する信号を出力する温度制御器と、前記温
度制御器出力に応動する温水器供給熱量制御器
と、供給総水量設定器と、前記温度偏差
（TER）の信号及び前記供給総水量設定器の信号
に依存して供給水量を制御する信号を出力する水
量制御器と、前記水量制御器の出力に応動し前記
温水器への水の供給を制御する供給水量制御装置
とからなる温水器の制御装置。1 Water heater outlet temperature detector, temperature setting device,
a temperature controller that outputs a signal for controlling the amount of heat supplied to the water heater depending on the difference (TER) between the signal of the temperature setting device and the signal of the hot water temperature detector; and a water heater that responds to the output of the temperature controller. a supply heat amount controller; a supply total water amount setting device; a water amount controller that outputs a signal for controlling the supply water amount depending on the temperature deviation (TER) signal and the signal of the supply total water amount setting device; and the water amount controller. A water heater control device comprising: a water supply amount control device that controls the supply of water to the water heater in response to the output of the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56131146A JPS5833053A (en) | 1981-08-20 | 1981-08-20 | Controlling device of water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56131146A JPS5833053A (en) | 1981-08-20 | 1981-08-20 | Controlling device of water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5833053A JPS5833053A (en) | 1983-02-26 |
| JPS6220465B2 true JPS6220465B2 (en) | 1987-05-07 |
Family
ID=15051072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56131146A Granted JPS5833053A (en) | 1981-08-20 | 1981-08-20 | Controlling device of water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5833053A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3784067T2 (en) * | 1987-03-10 | 1993-07-01 | Kanzaki Kokyukoki Mfg Co Ltd | PLANNING DEVICE OF THE AUTOMATIC REPLACEMENT TYPE FOR CUTTING DEVICES. |
| CN104034050B (en) * | 2014-07-04 | 2017-07-28 | 珠海格力电器股份有限公司 | Water heater temperature's automatic setting method, device and water heater |
| CN113898948B (en) * | 2021-10-18 | 2023-05-30 | 东莞市艾瑞科热能设备有限公司 | Sectional combustion balance control method of burner, burner and wall-mounted furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS498843A (en) * | 1972-04-10 | 1974-01-25 | ||
| JPS50131557A (en) * | 1974-04-04 | 1975-10-17 | ||
| JPS5190044A (en) * | 1975-02-04 | 1976-08-06 |
-
1981
- 1981-08-20 JP JP56131146A patent/JPS5833053A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS498843A (en) * | 1972-04-10 | 1974-01-25 | ||
| JPS50131557A (en) * | 1974-04-04 | 1975-10-17 | ||
| JPS5190044A (en) * | 1975-02-04 | 1976-08-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5833053A (en) | 1983-02-26 |
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