JPS58203339A - Tap operated hot water feeder - Google Patents
Tap operated hot water feederInfo
- Publication number
- JPS58203339A JPS58203339A JP57084757A JP8475782A JPS58203339A JP S58203339 A JPS58203339 A JP S58203339A JP 57084757 A JP57084757 A JP 57084757A JP 8475782 A JP8475782 A JP 8475782A JP S58203339 A JPS58203339 A JP S58203339A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- thermosensor
- hot water
- temperature sensor
- auxiliary
- 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.)
- Pending
Links
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
- F23N1/082—Regulating fuel supply conjointly with another medium, e.g. boiler water using electronic 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
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)
Abstract
Description
【発明の詳細な説明】
本発明は瞬間式給湯機の燃焼制御装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion control device for an instantaneous water heater.
瞬間式給湯機は、その熱交換器の近傍の出湯管（二温度
センナを設け、その検知温度Ｃ二よりバーナの０Ｎ−Ｏ
ＦＦ制御ヲ行い、所定温度の出湯を行うようにしている
。Instant water heaters are equipped with a hot water outlet pipe (two-temperature sensor) near the heat exchanger, and the burner's 0N-O temperature is determined by the detected temperature C2.
FF control is performed to discharge hot water at a predetermined temperature.
しかし、瞬間式給湯機（二おいては加熱速度が速いため
、温度センサの位置及び応答遅れが大きく影響し、出湯
量を少なくした場合、その出湯特性はハンチング状態と
なり、出湯温度のハンチング幅が大きくなる欠点があっ
た。However, since the heating speed of instantaneous hot water heaters is fast, the position of the temperature sensor and the response delay have a large effect, and if the amount of hot water dispensed is reduced, the hot water supply characteristics will be in a hunting state, and the hunting width of the hot water temperature will be reduced. There was a downside to getting bigger.
本発明は出湯温度のハンチング幅の小さい瞬間式給湯機
を提供することを目的とする。An object of the present invention is to provide an instantaneous water heater in which the hunting width of the hot water temperature is small.
本発明は、熱交換器の出口側に温度センサを設け、それ
よりもさらに下流に補助温度センサ７設け、距離（−よ
る温度の位相差を利用して温度センサの応答遅れを改善
し、補助温度センサの感知温度が高温（二なると設定温
度が高温側（−移行するようにし、ハンチング幅を小さ
くするよう（二したものである。The present invention provides a temperature sensor on the outlet side of the heat exchanger, and provides an auxiliary temperature sensor 7 further downstream than that, improves the response delay of the temperature sensor by using the phase difference in temperature due to distance (-), and improves the response delay of the temperature sensor. When the temperature sensed by the temperature sensor becomes high (2), the set temperature is shifted to the high temperature side (-), and the hunting width is made small (2).
以下、本発明を図に示す一実施例（−より説明する。第
１図Ｃ二おいて、１はバーナ、２は燃焼ガス通路３（二
装置された熱交換器、４は出湯管５の途中に設けたミキ
シングタンクである。１０は温度センサ１１と補助温度
センサ１２との温度信号を入力してバーナ１の燃焼制御
を行う燃焼制御装置である。Hereinafter, the present invention will be explained from one embodiment shown in the drawings (-). In FIG. This is a mixing tank provided midway. 10 is a combustion control device that inputs temperature signals from a temperature sensor 11 and an auxiliary temperature sensor 12 to control combustion of the burner 1.
温度センサ１１は熱交換器２の゛出口とミキシングタン
ク４の入口との間（二装置されている。補助温度センサ
１２はミキシングタンク４の出口側に設置している、
第２図において、１３は直流電源、１４はコンパレータ
、１５は燃焼制御回路であり、コンパレータ１４の出力
がＨｉレベルのとき燃焼を停止（ＯＦＦ）Ｌ、ＬＯＬ／
ベルで燃焼を行う（ＯＮ） 、 ２０．２１．２２．２
３．２４．２５は抵抗である。温度センサ１１と補助温
度センサ１２は負特性サーミスタであり、直列に設けら
れ、両者の間を反転入力端子に接続している、補助温度
センサ１２を電源側Ｃ二股け、抵抗２３Ｙ並列に設け、
影響を少なくしている。The temperature sensor 11 is installed between the outlet of the heat exchanger 2 and the inlet of the mixing tank 4.The auxiliary temperature sensor 12 is installed on the outlet side of the mixing tank 4. 14 is a DC power supply, 14 is a comparator, and 15 is a combustion control circuit. When the output of the comparator 14 is Hi level, combustion is stopped (OFF) L, LOL/
Combustion with bell (ON), 20.21.22.2
3.24.25 is the resistance. The temperature sensor 11 and the auxiliary temperature sensor 12 are negative characteristic thermistors, and are provided in series, and the inverting input terminal is connected between them.
It reduces the impact.
温度センサ１１の温度が上昇すると、その抵抗値が減少
するため、反転入力端子（−）（１加わる電圧が低下し
、その結果非反転入力端子（＋）の基準電子より小さく
なると、コンパレータ１４の出力端子はＨｉレベルとな
り、燃焼が停止する。As the temperature of the temperature sensor 11 increases, its resistance value decreases, so that the voltage applied to the inverting input terminal (-) (1) decreases, and as a result, when it becomes smaller than the reference electron of the non-inverting input terminal (+), the voltage of the comparator 14 decreases. The output terminal becomes Hi level and combustion stops.
温度センサ１１と補助温度センサ１２とは直列であるの
で、反転入力端子に加わる電圧は両者の感知温度によっ
て定まり、補助温度センサ１２の温度が上昇すると反転
入力端子に加わる電圧は上昇するので、燃焼を停止する
ためには温度センサ１１の抵抗値を小さくする（温度を
高くする）必要がある。Since the temperature sensor 11 and the auxiliary temperature sensor 12 are connected in series, the voltage applied to the inverting input terminal is determined by the sensed temperature of both, and as the temperature of the auxiliary temperature sensor 12 increases, the voltage applied to the inverting input terminal increases. In order to stop this, it is necessary to reduce the resistance value of the temperature sensor 11 (increase the temperature).
即ち、温度センサ１１及び補助温度センサ１２の感知温
度の上昇に伴って燃焼を０Ｎ−ＯＦＦＴる設定温度は上
昇することになる。That is, as the temperatures sensed by the temperature sensor 11 and the auxiliary temperature sensor 12 rise, the set temperature at which combustion is turned off increases.
また、補助温度センサ１２は温度センサ１１の下流であ
り、またミキシングタンク４の下流であるので、補助温
度センサ１２の感知温度の変化は温度センサ１１の温度
変化よりも遅れる。Further, since the auxiliary temperature sensor 12 is downstream of the temperature sensor 11 and downstream of the mixing tank 4, the change in temperature sensed by the auxiliary temperature sensor 12 lags behind the change in temperature of the temperature sensor 11.
これらの事（二より、鮮焼を停止するＯＦＦの設定温度
は低めに押えられ、燃焼を開始するＯＮの設定温度は高
め（二なる。このためＯＦＦの設定温度よりＯＮの設定
温度が高くなる、このため、パンチ１
ング幅が小さくなる、
第３図に、第１図、第２図の構成（−よる場合の出湯特
性の一例を示す。図において、破線は０Ｎ−ＯＦＦの設
定温度を示すものであり、反転入力端子（−）の入力電
圧とＯＮ −ＯＦＦのデファレンシャルを基ζ二換算し
て求めたものである。因の左側より順次、ＯＦＦの設定
温度、ＯＮの設定温度を示す。Because of these things (2), the set temperature for OFF, which stops fresh grilling, is kept low, and the set temperature for ON, which starts combustion, is high (2).For this reason, the set temperature for ON is higher than the set temperature for OFF, For this reason, the punching width becomes smaller. Figure 3 shows an example of the hot water discharge characteristics in the case of the configuration (-) shown in Figures 1 and 2. In the figure, the broken line indicates the set temperature for 0N-OFF. It is obtained by converting the input voltage of the inverting input terminal (-) and the ON-OFF differential into base ζ2.Sequentially from the left side of the equation, the OFF set temperature and the ON set temperature are shown.
ＯＮの設定温度はＯＦＦの設定温度からデファレンシャ
ルを差引いたものである。The set temperature for ON is the set temperature for OFF minus the differential.
＄３図において、出湯を開始すると燃焼を開始し、温度
センサ１１、補助温度センサ１２の温度が上昇する。こ
れに伴ってＯＦＦの設定温度も上昇するが、温度センサ
１１側が早く上昇するので、比較的（二低温（Ｔｌ ）
でＯＦＦする。しかし、温度センサ１１部の温度は熱交
換器のヒートマスによって上昇し、また温度センサ１２
側の温度も上昇するので、設定温度はさらに上昇し、Ｔ
ｌよりも高温のＴ２温度でＯＮする。燃焼を開始するの
で温度センサ１１、補助温度センサ１２の温度はさら（
−高温になるので、ＯＦＦ温度はＴ１よりも高温のＴ３
温度となる。このよう（二して、ＯＦＦ温度が除々（１
制くなり、その後所定の設定温度でＯＮ −ＯＦＦ ’
２行う。一方、ＯＮ温度はＯＦＦ温度よりも旨く、へン
チング幅！小さくする。In Figure 3, when hot water starts to be tapped, combustion starts and the temperatures of the temperature sensor 11 and the auxiliary temperature sensor 12 rise. Along with this, the set temperature for OFF also rises, but since the temperature sensor 11 side rises quickly, it is relatively (low temperature (Tl)).
Turn it off. However, the temperature of the temperature sensor 11 increases due to the heat mass of the heat exchanger, and the temperature of the temperature sensor 12 increases.
Since the temperature on the side also rises, the set temperature rises further, and T
Turns on at T2 temperature, which is higher than l. Since combustion starts, the temperatures of the temperature sensor 11 and the auxiliary temperature sensor 12 further increase (
-Since the temperature is high, the OFF temperature is T3, which is higher than T1.
temperature. In this way (2), the OFF temperature gradually decreases (1
It then turns on and off at the predetermined set temperature.
Do 2. On the other hand, the ON temperature is better than the OFF temperature, and the henching width is better! Make it smaller.
例えば、熱出カニ約３０．０００”／ｈ、出湯量＝３０
０４４、ミキシングタンクの容量：約１１のとき、補助
温度センサ１２の感知温度が１０℃上昇すると温度調節
装置の設定温度が３〜４℃上昇するように設計する、
上記実施例ではミキシングタンク４を備えているので、
温度センサ１１に対する補助温度センサ１２の温度の応
答遅れ、即ち温度の位相差を容易（１得ることができ、
またミキシングタンク４自身の減衰効果もあり、出湯温
度のハンチング幅を大きく低減することができるもので
ある、ミキシングタンク４を備えない場合は、温度セン
サ１１と補助温度センサ１２との距■ｑによる温度の位
相差のみの効果となる。また、より効果的にするために
は両者の距離をより太き（し、９０普度の位相差が得ら
れるようにする。For example, fever crab approx. 30,000"/h, hot water output = 30
044, When the capacity of the mixing tank is approximately 11, the design is such that when the temperature sensed by the auxiliary temperature sensor 12 increases by 10 degrees Celsius, the set temperature of the temperature control device increases by 3 to 4 degrees Celsius. In the above embodiment, the mixing tank 4 is Because we are equipped with
The temperature response delay of the auxiliary temperature sensor 12 with respect to the temperature sensor 11, that is, the temperature phase difference can be easily obtained (1).
In addition, the mixing tank 4 itself has a damping effect, which can greatly reduce the hunting width of the hot water temperature.If the mixing tank 4 is not provided, the distance between the temperature sensor 11 and the auxiliary temperature sensor 12 depends on The effect is only the temperature phase difference. Further, in order to make it more effective, the distance between the two should be made wider (and a phase difference of 90 degrees can be obtained).
上記実施例では、ミキシングタンク４を備えているので
、ミキシングタンク４の減衰作用が効果（１表われる出
湯はと、温度の位相差暑利用した制御回路（−よる効果
が表われる出湯量とを異なるように設けることも考えら
れ、より広い範囲の出湯はでハンチング幅を小さくでき
るものである。In the above embodiment, since the mixing tank 4 is provided, the damping effect of the mixing tank 4 is effective (1). It is also conceivable to provide them differently, and the hunting width can be made smaller by tapping the hot water over a wider range.
熱交換器２内の温水温度ン検出するように温度センサ１
１ヲ設ければ、予測制御が加わり、ハンチング幅が小さ
くなる。Temperature sensor 1 to detect the temperature of hot water in heat exchanger 2
If 1 is provided, predictive control is added and the hunting width becomes smaller.
また、比例燃焼（＝も応用できるものである。Also, proportional combustion (=) can also be applied.
以上の如く本発明（二よれば、出湯温度のハンチング幅
Ｚ小さくできるものである。As described above, according to the present invention (2), the hunting width Z of the tapping temperature can be reduced.
第１図は本発明の一実施例の瞬間式給湯機の構成図、第
２図は本発明の一実施例の燃焼制御装置の回路図、第３
図は本発明の一例の出湯特性図である。
■・・・バーナ ２・・・熱交換器４・・・
ミキシングタンク ５・・・出湯管ｌＯ・・・燃焼制御
装置 １１・・・温度センサ１２・・・補助温度セ
ンサ １４・・・コンパレータオ１図
才２図FIG. 1 is a block diagram of an instantaneous water heater according to an embodiment of the present invention, FIG. 2 is a circuit diagram of a combustion control device according to an embodiment of the present invention, and FIG.
The figure is a hot water supply characteristic diagram of an example of the present invention. ■...Burner 2...Heat exchanger 4...
Mixing tank 5... Output pipe lO... Combustion control device 11... Temperature sensor 12... Auxiliary temperature sensor 14... Comparator 1, 2 and 3
Claims (1)
温度センナを設け、それよりも下流側の温水通路の温水
温度を検出する補助温度センサを設け、前記温度センサ
と補助温度センサを直列（−設けると共（−１補助温度
センサを電源側へ、温度センサをグランド側（二設け、
前記両者の分圧による電圧を感知温度として燃焼制御回
路（二人力させるように設けたことを特徴とする瞬間式
給湯機。 ２、特許請求の範囲第１項において、前記温度センナと
補助温度センサとの間の温水通路（：は通路断面＠を拡
大したミキシングタンクを備えていることを特徴とする
瞬間式給湯機。[Claims] 1. A temperature sensor is provided to detect the hot water temperature in the hot water passage on the outlet side of the heat exchanger, and an auxiliary temperature sensor is provided to detect the hot water temperature in the hot water passage downstream from the temperature sensor, The sensor and the auxiliary temperature sensor are connected in series (-), the auxiliary temperature sensor (-1) is connected to the power supply side, and the temperature sensor is connected to the ground side (-2 is installed,
An instantaneous hot water heater characterized in that a combustion control circuit is provided so that two people can operate the combustion control circuit using the voltage resulting from the partial pressure of the two as the sensing temperature. 2. In claim 1, the temperature sensor and the auxiliary temperature sensor An instant hot water heater characterized by having a mixing tank with an enlarged hot water passageway (:).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57084757A JPS58203339A (en) | 1982-05-21 | 1982-05-21 | Tap operated hot water feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57084757A JPS58203339A (en) | 1982-05-21 | 1982-05-21 | Tap operated hot water feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58203339A true JPS58203339A (en) | 1983-11-26 |
Family
ID=13839548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57084757A Pending JPS58203339A (en) | 1982-05-21 | 1982-05-21 | Tap operated hot water feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58203339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0375259A2 (en) * | 1988-12-23 | 1990-06-27 | Matsushita Electric Works, Ltd. | Hot water supplying system |
-
1982
- 1982-05-21 JP JP57084757A patent/JPS58203339A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0375259A2 (en) * | 1988-12-23 | 1990-06-27 | Matsushita Electric Works, Ltd. | Hot water supplying system |
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