JPS6337411A - Hot water and cold water mixer - Google Patents
Hot water and cold water mixerInfo
- Publication number
- JPS6337411A JPS6337411A JP61181573A JP18157386A JPS6337411A JP S6337411 A JPS6337411 A JP S6337411A JP 61181573 A JP61181573 A JP 61181573A JP 18157386 A JP18157386 A JP 18157386A JP S6337411 A JPS6337411 A JP S6337411A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- closing speed
- temperature
- deviation
- valve
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
- Control Of Temperature (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、バルブにより湯と水の混合割合を変えて湯
温の制御を行う湯水混合装置に係り、特に、そのバルブ
の開閉速度を混合した湯の湯温と設定された目標湯温と
の偏差に応じて決定する湯水混合装置に関する。Detailed Description of the Invention (Field of Industrial Application) This invention relates to a hot water mixing device that controls the temperature of hot water by changing the mixing ratio of hot water and water using a valve, and in particular, the invention relates to a hot water mixing device that controls the temperature of hot water by changing the mixing ratio of hot water and water using a valve, and in particular, the opening and closing speed of the valve is The present invention relates to a hot water mixing device that determines the temperature according to the deviation between the hot water temperature and a set target hot water temperature.
（従来の技術）
湯水混合装置は、周知のように、湯と水の混合割合をバ
ルブにより制御して所定温度の湯をカラン等へ供給する
ものであるが、近年にあっては制御応答性の改善を目的
として、そのバルブの開閉速度を変えるものが提案され
ている。(Prior art) As is well known, a hot water mixing device is a device that controls the mixing ratio of hot water and water using a valve to supply hot water at a predetermined temperature to a cooker, etc., but in recent years, control responsiveness has improved. In order to improve this, it has been proposed to change the opening and closing speed of the valve.
この種のバルブの開閉速度が可変な湯水混合装置として
、従来、設定された目標の温度（目標湯温）と供給され
る湯の温度（実湯温）との偏差に応じて特定され得るバ
ルブ開閉速度の二種のデータを制御特性としてＲＯＭ等
の記憶装置に記憶し、バルブの開閉速度の変化率が小さ
くなるような制御特性を選択して該特性に従い前記偏差
に応じバルブ開閉速度を決定するよう構成されたものが
ある。Conventionally, this kind of hot water mixing device with a variable valve opening/closing speed has a valve that can be specified according to the deviation between a set target temperature (target hot water temperature) and the supplied hot water temperature (actual hot water temperature). Two types of data on the opening and closing speed are stored in a storage device such as a ROM as control characteristics, a control characteristic that reduces the rate of change in the opening and closing speed of the valve is selected, and the valve opening and closing speed is determined according to the deviation according to the characteristic. There are some that are configured to do so.
（この発明が解決しようとする問題点）しかしながら、
上述したようなバルブの開閉速度が可変な湯水混合装置
にあっては、バルブの開閉速度の利得の低いものを１つ
だけ限定した制御特性を選択するため、圧力変動時にお
いて偏差が大きい場合十分に大きな開閉速度が得られな
いので、実湯温が目標湯温に到達するのに要する時間が
長くなるという問題点があった。(Problem to be solved by this invention) However,
In the above-mentioned hot water mixing device in which the valve opening/closing speed is variable, control characteristics are selected that limit the valve opening/closing speed to only one with a low gain, so if the deviation is large during pressure fluctuations, it is sufficient. Since a large opening/closing speed cannot be obtained, there is a problem in that it takes a long time for the actual hot water temperature to reach the target hot water temperature.
一方、上述の問題点を解決するには、利得の傾きを変え
て高偏差域のバルブの開閉速度を大きくすることも考え
られるが、開閉速度を大きくすると設定温度に近い低偏
差域においても利得が大きくなるため、実湯温が目標湯
温に対して変動するハンチングが生じやすくなるという
新たな問題が生じる。On the other hand, in order to solve the above-mentioned problem, it is possible to increase the opening and closing speed of the valve in the high deviation region by changing the gain slope, but if the opening and closing speed is increased, the gain will increase even in the low deviation region close to the set temperature. As a result, a new problem arises in that hunting, where the actual hot water temperature fluctuates relative to the target hot water temperature, is more likely to occur.
この発明は、上記問題点を鑑みてなされたもので、圧力
変動時は利得の大きい制御特性を選択して実湯温と目標
湯温との偏差に基づいて行うが該偏差の正負が反転した
時には利得が小さい制御特性を選択してバルブ開閉速度
を小さくする湯水混合装置を提供し、目標湯温への到達
時間の短縮とともにハンチングの発生を防止することを
目的としている。This invention was made in view of the above-mentioned problem, and when the pressure fluctuates, a control characteristic with a large gain is selected and the control is performed based on the deviation between the actual hot water temperature and the target hot water temperature, but the sign of the deviation is reversed. The purpose of the present invention is to provide a hot water mixing device that sometimes selects a control characteristic with a small gain to reduce the valve opening/closing speed, thereby shortening the time required to reach a target hot water temperature and preventing hunting from occurring.
（問題点が解決するための手段）
この発明は、湯が供給される給湯管および水が供給され
る給水管を湯と水を混合可能に混合水管へ接続し、給湯
管および給水管にそれぞれ連動して、湯および水の流量
を調節可能な給湯バルブと給水バルブを設け、圧力変動
発生時に前記混合水管内の湯温を検知して該湯温と設定
した目標湯温との偏差に基づき予め記憶させた利得が異
なる複数のバルブ開閉速度制御特性から１つを選択し、
該選択されたバルブ開閉速度制御特性に従い前記偏差に
応じバルブ開閉速度を決定し、該決定されたバルブ開閉
速度で前記給湯バルブおよび前記給水バルブを駆動して
前記混合水管内の湯温制御を行う湯水混合装置にあって
、一つのバルブ開閉速度制御特性に従い決定されたバル
ブ開閉速度で前記給湯バルブおよび給水バルブを駆動し
て前記偏差が反転した時、前記一つのバルブ開閉速度制
御特性よりも小さな利得の他のバルブ開閉速度制御特性
を選択するよう構成したことを要旨とする。(Means for Solving the Problem) This invention connects a hot water supply pipe that supplies hot water and a water supply pipe that supplies water to a mixing water pipe so that hot water and water can be mixed, and connects the hot water supply pipe and the water supply pipe to each other. A hot water supply valve and a water supply valve are provided that can adjust the flow rate of hot water and water in conjunction with each other, and when a pressure fluctuation occurs, the water temperature in the mixing water pipe is detected and based on the deviation between the hot water temperature and the set target water temperature. Select one from multiple valve opening/closing speed control characteristics with different gains stored in advance,
A valve opening/closing speed is determined according to the deviation according to the selected valve opening/closing speed control characteristic, and the hot water supply valve and the water supply valve are driven at the determined valve opening/closing speed to control the hot water temperature in the mixing water pipe. In the hot water mixing device, when the hot water supply valve and the water supply valve are driven at a valve opening/closing speed determined according to one valve opening/closing speed control characteristic and the deviation is reversed, the deviation is smaller than the one valve opening/closing speed control characteristic. The gist is that the valve opening/closing speed control characteristics other than the gain are selected.
（作用）
この発明にかかる湯水混合装置によれば、圧力変動発生
時に大きな利得のバルブ開閉速度制御特性が選択されて
バルブは大きなバルブ開閉速度で駆動されるが、偏差の
正負が反転するとより小さな利得のバルブ開閉速度制御
特性が選択されてバルブ開閉速度が小さくなる。このた
め、圧力変動時目標湯温へ速やかに到達させることがで
き、また、ハンチングの発生も防止される。(Function) According to the hot water mixing device according to the present invention, when a pressure fluctuation occurs, a valve opening/closing speed control characteristic with a large gain is selected and the valve is driven at a large valve opening/closing speed, but when the sign of the deviation is reversed, the valve opening/closing speed becomes smaller. The valve opening/closing speed control characteristic of the gain is selected to reduce the valve opening/closing speed. Therefore, the target hot water temperature can be quickly reached during pressure fluctuations, and hunting can also be prevented.
（実施例） 以下、この発明の実施例を図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.
第１図から第４図は、この発明の一実施例にかかる湯水
混合装置を表し、第１図が全体構成図、第２図および第
３図がフローチャート、第４図がタイミングチャート、
第５図がデータテーブルである。1 to 4 represent a hot water mixing device according to an embodiment of the present invention, in which FIG. 1 is an overall configuration diagram, FIGS. 2 and 3 are flowcharts, and FIG. 4 is a timing chart.
FIG. 5 is a data table.
第１図において、（１１）は比較的高温の湯が供給され
る給湯管、（１２）は比較的低温の水が供給される給水
管、（１３）は給湯管（１１）内の湯の流量を調節する
給湯バルブ、（１４）は給湯バルブ（１３）の連動して
給水管（１２）内の水の流量を調節する給水バルブ、（
１５）は給湯バルブ（１３）を経た湯と給水バルブ（１
４）を経た水とを混合してカラン（１６）へ導く混合水
管、（１Ｂ）は混合水管（１５）内の混合水の温度（実
湯温）、を検出する温度センサ、（１９）は目標湯温（
ＴＯ）の設定並びに装置の駆動・停止等の指令を行う操
作器、（２０）はＣＰＵおよびＲＯＭ等を有したワンチ
ップマイコンから構成されて操作器（１８）の操作およ
び温度センサ（１８）等の出力信号に基づいた制御を行
う制御器、（２１）は駆動回路およびモータ等を有し制
御器（２０）の出力信号に基づいてバルブ（１３）、（
１４）を駆動する駆動器である。制御器（２０）のワン
チップマイコンのＲＯＭには、第５図に示すように実湯
温（ＴＭ ）と目標湯温（ＴＯ）との偏差（Δｔ）に応
じてバルブの開閉速度（Ｒ）を特定可能な２種の制御特
性（Ａ）、（Ｂ）が記憶されている。なお、言うまでも
無いが、制御特性は３種以上をＲＯＭに記憶させること
も回旋である。この制御器（２０）は、記憶手段、選択
手段、保持手段および速度決定手段に相当する。In Figure 1, (11) is a water supply pipe that supplies relatively high temperature water, (12) is a water supply pipe that supplies relatively low temperature water, and (13) is a water supply pipe that supplies hot water in hot water supply pipe (11). A hot water supply valve (14) that adjusts the flow rate is a water supply valve that adjusts the flow rate of water in the water supply pipe (12) in conjunction with the hot water supply valve (13).
15) is the connection between the hot water that has passed through the hot water supply valve (13) and the water supply valve (1
(1B) is a temperature sensor that detects the temperature of the mixed water (actual water temperature) in the mixing water pipe (15), (19) is Target hot water temperature (
(20) is a one-chip microcomputer with a CPU, ROM, etc., and controls the operation of the controller (18) and the temperature sensor (18), etc. A controller (21) that performs control based on the output signal of the controller (21) has a drive circuit, a motor, etc., and controls the valves (13), (21) based on the output signal of the controller (20).
14). As shown in Fig. 5, the ROM of the one-chip microcomputer of the controller (20) stores the valve opening/closing speed (R) according to the deviation (Δt) between the actual water temperature (TM) and the target water temperature (TO). Two types of control characteristics (A) and (B) that can be used to specify are stored. It goes without saying that storing three or more types of control characteristics in the ROM is also an example of rotation. This controller (20) corresponds to storage means, selection means, holding means and speed determination means.
この湯水混合装置は、第２図および第３図のフローチャ
ートに示す一連の処理を実行して実湯温の制御°を行う
、なお、説明の簡便のため湯温等について具体的な数値
を記載するが、これは例示であり他の数値も適宜設定で
きることは言うまでも無い。This hot water mixing device controls the actual hot water temperature by executing a series of processes shown in the flowcharts in Figures 2 and 3.For the sake of simplicity, specific numerical values for hot water temperature, etc. are listed. However, this is just an example, and it goes without saying that other numerical values can be set as appropriate.
この制御は、第２図のメインルーチンにより行う、すな
わち、まず、ステップ（Ｐｌ）において、後述するフラ
グ（Ｆｌ） （Ｆ２） （Ｆ３）の初期値設定等の初期
化を行う、この初期化では、フラグ（Ｆｌ）が１に、フ
ラグ（Ｆ２）がＯに、また、制御特性（Ｋ）がゲイン（
利得）の小さい特性（Ｂ）に初期設定される。そして、
次のステップ（Ｆ２）で実湯温（ＴＭ）の読み込み等の
入力処理を行い、続くステップ（Ｆ３）で読み込んだ実
湯温（ＴＭ ）を補正する。この後、ステップ（Ｆ４）
において、実湯温（ＴＭ ）と目標湯温（Ｔｏ）との偏
差（ΔＴ）を算出し、次のステップ（Ｆ５）で後述（第
３図）するように制御特性（Ａ）、（Ｂ）の選択制御を
行い、そして、続くステップ（Ｆ６）で選択された制御
特性（Ｋ）に基づいて偏差（Δ丁）からパルプ開閉速度
（Ｒ）をマツプ検索し、この後のステップ（Ｐ ？）で
バルブ（１３）、（ｔａ）を開閉するモータの駆動等の
出力処理を行う。This control is performed by the main routine shown in FIG. , the flag (Fl) is set to 1, the flag (F2) is set to O, and the control characteristic (K) is set to the gain (
The characteristic (B) is initially set to have a small gain (gain). and,
In the next step (F2), input processing such as reading the actual hot water temperature (TM) is performed, and in the following step (F3), the read actual hot water temperature (TM) is corrected. After this, step (F4)
, the deviation (ΔT) between the actual hot water temperature (TM) and the target hot water temperature (To) is calculated, and in the next step (F5), the control characteristics (A) and (B) are adjusted as described later (Fig. 3). Then, in the following step (F6), based on the control characteristic (K) selected, the pulp opening/closing speed (R) is searched from the deviation (Δt) on a map, and the following step (P?) Output processing such as driving the motor for opening and closing the valves (13) and (ta) is performed.
制御特性（Ｋ）の選択制御は、第３図に示す一連の処理
によって行う、まず、ステップ（Ｑ＋）でフラグ（Ｆｌ
）が１であるか否かを判断し、フラグ（Ｆｌ）が１であ
ればステップ（Ｑ９）へ進み、フラグ（Ｆ １）がＯで
あればステップ（Ｑ２）へ進む、このフラグ（Ｆ １）
は、偏差の絶対値（１ΔＴｌ）が０．５［’Ｃ！］以下
の状態が一定時間（ｔ ｏ）継続した時（以下、安定出
湯状態と称す）にＯが設定される。次のステップ（Ｑ２
）では、フラグ（Ｆ２）が１であるか否かを判断し、フ
ラグ（Ｆ２）が１であればステップ（Ｑ１３）へ進み、
フラグ（Ｆ２）がＯであればステップ（Ｑ３）へ進む、
このフラグ（Ｆ２）は、他のバルブの開閉による圧力変
動等に起因して偏差の絶対値（１ΔＴｌ）が２［℃］を
越えた場合等に１が設定される。The selection control of the control characteristic (K) is performed by a series of processes shown in FIG.
) is 1, and if the flag (Fl) is 1, proceed to step (Q9), and if the flag (F1) is O, proceed to step (Q2). )
The absolute value of deviation (1ΔTl) is 0.5['C! ] O is set when the following state continues for a certain period of time (to) (hereinafter referred to as stable hot water supply state). Next step (Q2
), it is determined whether the flag (F2) is 1 or not, and if the flag (F2) is 1, the process proceeds to step (Q13),
If the flag (F2) is O, proceed to step (Q3).
This flag (F2) is set to 1 when the absolute value of the deviation (1ΔTl) exceeds 2 [° C.] due to pressure fluctuations due to opening and closing of other valves.
ステップ（Ｑ３）においては、偏差（ΔＴ）（ΔＴ＝Ｔ
ｏ ＴＭ）が２［℃］を超えているか否かを判断し、
偏差（ΔＴ）が２［℃］以下であればステップ（Ｑ４）
へ進み、偏差（ΔＴ）が２［℃］を超えていればステッ
プ（Ｑ５）でフラグ（Ｆ３）に０を設定する。同様に、
続くステップ（Ｑ４）においては、偏差（ΔＴ）（ΔＴ
＝Ｔｏ−ＴＭ）が−２［”Ｃ］ より小さいか否かを判
断し、偏差（ΔＴ）が２ｃ℃］以上であれば再度一連の
処理を繰り返し実行するが、偏差（ΔＴ）が−２［℃］
より小さければステップ（Ｑ６）でフラグ（Ｆ３）に１
を設定する。このフラグ（Ｆ３）は、偏差（ΔＴ）が正
でＯ１偏差（ΔＴ）が負で１を設定され、偏差（ΔＴ）
の正負を表す０次のステップ（Ｑ７）ではフラグ（Ｆ２
）に１が設定され、続くステップ（Ｑ８）で制御特性（
Ｋ）に大きなゲインの特性（Ａ）が設定される。すなわ
ち、圧力変動等に起因して偏差（ΔＴ）が大きい場合に
は、フラグ（Ｆ２）に１が設定され、また、大きなゲイ
ンの特性（Ａ）が制御特性（Ｋ）に設定される。このた
あ、バルブの開閉速度Ｒ）も大きくなり、実湯温（ＴＭ
）を目標湯温（ＴＯ）へ速やかに到達させることがで
きる。In step (Q3), the deviation (ΔT) (ΔT=T
o TM) is over 2 [℃],
If the deviation (ΔT) is 2 [℃] or less, step (Q4)
If the deviation (ΔT) exceeds 2 [° C.], the flag (F3) is set to 0 in step (Q5). Similarly,
In the following step (Q4), the deviation (ΔT) (ΔT
=To-TM) is smaller than -2["C]. If the deviation (ΔT) is 2c℃] or more, repeat the series of processes again, but if the deviation (ΔT) is -2 [℃]
If it is smaller, set the flag (F3) to 1 in step (Q6).
Set. This flag (F3) is set to 1 when the deviation (ΔT) is positive and the O1 deviation (ΔT) is negative;
In the zero-order step (Q7) representing the positive or negative of , a flag (F2
) is set to 1, and in the following step (Q8) the control characteristic (
A large gain characteristic (A) is set for K). That is, when the deviation (ΔT) is large due to pressure fluctuation or the like, the flag (F2) is set to 1, and the large gain characteristic (A) is set as the control characteristic (K). As a result, the valve opening/closing speed R) also increases, and the actual water temperature (TM
) can quickly reach the target hot water temperature (TO).
ステップ（Ｑ９）においては、偏差の絶対値（１ΔＴｌ
）がｏ、５ ［”ｃｌ以下か否か、換言すれば実湯温（
ＴＭ ）が目標湯温（ＴＯ）へ到達したか否かを判断し
、絶対値（１ΔＴ＋）が０．５［”Ｃ！］を超えている
と判断されるとステップ（Ｑ ｒｏ ）で安定タイマ（
Ｓｔ）をリセットして所定時間（ｔｏ）の計時を開始し
、また絶対値（１ΔＴｌ）が０．５［”０］以下であれ
ばステップ（Ｑｎ）で安定タイマ（Ｓｔ）が計時を完了
したか否かを判断する。そして、このステップ（Ｑ ｕ
）では安定タイマ（Ｓｔ）が計時を完了したと判断さ
れるとステップ（Ｑ１０）でフラグ（Ｆ ｌ）にＯを設
定し、計時が未完了であれば再度一連の処理を繰り返し
実行する。すなわち、実湯温（ＴＭ ）が目標湯温（Ｔ
Ｏ）に到達した状態が安定タイマ（Ｓｔ）に設定された
時間（ｔｏ）継続すると、安定出湯状態にあると判別さ
れてフラグ（Ｆｌ）にＯが設定される。In step (Q9), the absolute value of the deviation (1ΔTl
) is less than o, 5 [”cl, in other words, the actual water temperature (
TM ) has reached the target hot water temperature (TO), and if it is determined that the absolute value (1ΔT+) exceeds 0.5 ["C!], a stability timer is activated at step (Q ro ). (
St) is reset to start counting the predetermined time (to), and if the absolute value (1ΔTl) is 0.5 ["0] or less, the stability timer (St) completes timing at step (Qn). Then, in this step (Q u
), if it is determined that the stability timer (St) has completed timing, the flag (Fl) is set to O in step (Q10), and if timing is not completed, the series of processes is repeated again. In other words, the actual water temperature (TM) is the target water temperature (T
When the state in which the temperature reaches O) continues for the time (to) set in the stability timer (St), it is determined that the hot water is in a stable hot water supply state, and O is set in the flag (Fl).
ステップ（Ｑ１０）においては、前記偏差（ΔＴ）（Δ
Ｔ＝Ｔｏ−ＴＭ）の正負を判別し、偏差（ΔＴ）が負で
あればステップ（Ｑ ＋ａ ）へ進んでフラグ（Ｆ３）
の値を判別し、また同様に、偏差（ΔＴ）が正またはＯ
であればステップ（Ｑ ＋ｓ ）へ進んでフラグ（Ｆ３
）の値を判別する。そして、ステップ（Ｑ ＋４ ）で
フラグ（Ｆ３）が１であると判別された場合、また、ス
テップ（Ｑ ＋ｓ ）でフラグ（Ｆ３）が０であると判
別された場合には、再度一連の処理を繰り返し実行する
が、ステップ（Ｑ１０）でフラグ（Ｆ３）がＯであると
判別された場合、また、ステップ（ＱＣｓ）でフラグ（
Ｆ３）が１であると判別された場合には、ステップ（Ｑ
Ｃｓ ） （Ｑ１０ ）（ＱＣｓ）（ＱＣｓ）の処理
を順次実行する。これらステップ（Ｑ ＋ｉ ）ではフ
ラグ（Ｆｌ）に１を設定し、ステップ（Ｑ ＋７ ）で
はフラグ（Ｆ２）にＯを設定し、ステー２ブ（Ｑ ＋ｓ
）では制御特性（Ｋ）に小さいゲインの特性（Ｂ）を
設定し、ステップ（ＱＣｓ）では安定タイマ（Ｓｔ）を
リセットして計時を開始する。すなわち、制御特性（Ｋ
）は、圧力変動等に起因して偏差（ΔＴ）が大きくなる
と大きなゲインの特性（Ａ）が設定されるが、この後、
偏差（ΔＴ）が小さくなって正負が反転すると、小さな
ゲインの特性（Ｂ）が設定される。このため、第４図に
示すように、ハンチングを生じること無く、実感温（Ｔ
Ｍ ）を速やかに目標湯温（ＴＯ）へ収束させることが
できる。第４図中下欄の（Ａ）（Ｂ）は選択された制御
特性（Ｋ）を便宜的に表す。In step (Q10), the deviation (ΔT) (Δ
Determine whether T = To - TM) is positive or negative, and if the deviation (ΔT) is negative, proceed to step (Q + a) and flag (F3)
Similarly, if the deviation (ΔT) is positive or O
If so, proceed to step (Q +s) and set the flag (F3
) is determined. Then, if it is determined that the flag (F3) is 1 in step (Q +4), or if it is determined that the flag (F3) is 0 in step (Q +s), the series of processing is repeated. is repeatedly executed, but if flag (F3) is determined to be O in step (Q10), flag (
If F3) is determined to be 1, step (Q
Cs ) (Q10 ) (QCs) (QCs) are sequentially executed. In these steps (Q +i), the flag (Fl) is set to 1, in the step (Q +7), the flag (F2) is set to O, and the step 2 (Q +s
), the control characteristic (K) is set to a small gain characteristic (B), and in step (QCs), the stability timer (St) is reset and time measurement is started. That is, the control characteristic (K
), a large gain characteristic (A) is set when the deviation (ΔT) increases due to pressure fluctuations, etc., but after this,
When the deviation (ΔT) becomes small and the sign is reversed, a small gain characteristic (B) is set. Therefore, as shown in Figure 4, the actual temperature (T
M) can be quickly converged to the target hot water temperature (TO). (A) and (B) in the lower column of FIG. 4 conveniently represent the selected control characteristic (K).
なお、上述した実施例では、ＲＯＭに２つの制御特性（
Ａ）、（Ｂ）を記憶させたものを表すが、３種以上の制
御特性を記憶させることも可能であることは言うまでも
無い、また、第５図に示すように、偏差（ΔＴ）が微小
の範囲（−０，５＜ΔＴく０．５）ではバルブ開閉速度
（Ｒ）を零として安定域を作ることも任意である。In addition, in the embodiment described above, two control characteristics (
A) and (B) are stored, but it goes without saying that it is also possible to store three or more types of control characteristics.Also, as shown in Figure 5, the deviation (ΔT) In the range where is minute (-0.5<ΔT<0.5), it is optional to create a stable region by setting the valve opening/closing speed (R) to zero.
（発明の効果）
以上説明してきたように、この発明にかかる湯水混合装
置によれば、圧力変動時にバルブの開閉速度を大きくす
るバルブ開閉速度制御特性を選択するが偏差の正負が反
転するとバルブの開閉速度をより小さくするバルブ開閉
速度制御特性を選択して該特性に基づいた制御へ移行す
るため、圧力変動時等にあっても目標湯温へ速やかに到
達させることができ、さらに、ハンチングが発生するこ
とを防止できる。(Effects of the Invention) As explained above, according to the hot water mixing device according to the present invention, the valve opening/closing speed control characteristic is selected to increase the opening/closing speed of the valve when pressure fluctuates, but when the sign of the deviation is reversed, the valve opening/closing speed is increased. Since a valve opening/closing speed control characteristic that reduces the opening/closing speed is selected and control is based on that characteristic, the target hot water temperature can be quickly reached even during pressure fluctuations, and hunting can be avoided. This can be prevented from occurring.
第１図から第５図はこの発明の一実施例にかかる湯水混
合装置を示し、第１図が全体構成図、第２図および第３
図がフローチャート、第４図がタイミングチャート、第
５図がデータテーブルである。
１１・・・・・・給湯管 １２・・・・・・給
水管１３・・・・・・給湯バルブ １４・・・・・
・給水バルブ１５・・・・・・混合水管 １６・
・・・・・カラン１８・・・・・・温度センサ １
９・・・・・・操作器２０・・・・・・制御器
２１・・・・・・駆動塁1 to 5 show a hot water mixing device according to an embodiment of the present invention, in which FIG. 1 is an overall configuration diagram, FIG. 2 and FIG.
The figure is a flowchart, FIG. 4 is a timing chart, and FIG. 5 is a data table. 11... Hot water supply pipe 12... Water supply pipe 13... Hot water supply valve 14...
・Water supply valve 15...Mixing water pipe 16.
...Call 18...Temperature sensor 1
9...Operator 20...Controller 21...Drive base
Claims (1)
量を制御する給水バルブとを１軸で駆動するかあるいは
それぞれ連動して２軸で駆動する駆動手段と、前記給湯
バルブを通過する所定量の湯と前記給水バルブを通過す
る所定量の水とを混合を可能にした混合水管と、この混
合水管内の湯温を検出する温度検出手段と、この温度検
出手段の検出温度と目標温度との偏差に基づき一定の制
御特性に従って前記給湯バルブ及び前記給水バルブの開
閉速度を決定するバルブ開閉速度制御ユニットを有する
制御手段とを備え、前記混合水管内の湯温を検知して該
湯温と設定した目標湯温との偏差に基づき予め記憶させ
た利得が異なる複数のバルブ開閉速度制御特性から１つ
を選択するとともに、該選択されたバルブ開閉速度制御
特性に従い前記偏差に応じバルブ開閉速度を決定し、該
決定されたバルブ開閉速度で前記給湯バルブおよび前記
給水バルブを駆動して前記混合水管内の湯温制御を行う
湯水混合装置にあって、一つのバルブ開閉速度制御特性
に従い決定されたバルブ開閉速度で前記給湯バルブおよ
び給水バルブを駆動して前記偏差が反転した時、前記一
つのバルブ開閉速度制御特性よりも小さな利得の他のバ
ルブ開閉速度制御特性を選択することを特徴とする渇水
混合装置。A driving means for driving a hot water supply valve that controls the amount of hot water at a predetermined temperature passing through the hot water supply valve and a water supply valve that controls the amount of water that passes through the hot water supply valve through one axis or two shafts in conjunction with each other; A mixing water pipe that makes it possible to mix a predetermined amount of hot water with a predetermined amount of water passing through the water supply valve, a temperature detecting means for detecting the temperature of the hot water in the mixing water pipe, and the detected temperature and target of the temperature detecting means. a control means having a valve opening/closing speed control unit that determines the opening/closing speed of the hot water supply valve and the water supply valve according to a certain control characteristic based on a deviation from the temperature; One is selected from a plurality of valve opening/closing speed control characteristics with different gains stored in advance based on the deviation between the temperature and the set target water temperature, and the valve is opened/closed according to the deviation according to the selected valve opening/closing speed control characteristic. In a hot water mixing device that controls hot water temperature in the mixing water pipe by determining a speed and driving the hot water supply valve and the water supply valve at the determined valve opening/closing speed, the valve opening/closing speed is determined according to one valve opening/closing speed control characteristic. When the deviation is reversed by driving the hot water supply valve and the water supply valve at the valve opening/closing speed determined by the valve opening/closing speed, another valve opening/closing speed control characteristic having a smaller gain than the one valve opening/closing speed control characteristic is selected. Drought water mixing equipment.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61181573A JPH0650451B2 (en) | 1986-08-01 | 1986-08-01 | Hot water mixing device |
| KR1019870008349A KR900008067B1 (en) | 1986-08-01 | 1987-07-30 | Hot water and cold water mixer |
| CA000543559A CA1272707A (en) | 1986-08-01 | 1987-07-31 | Hot/cold water mixing device |
| US07/080,749 US4739923A (en) | 1986-08-01 | 1987-07-31 | Hot/cold water mixing device |
| EP87306862A EP0259969B1 (en) | 1986-08-01 | 1987-08-03 | Hot/cold water mixing device |
| DE8787306862T DE3782787T2 (en) | 1986-08-01 | 1987-08-03 | MIXING DEVICE FOR HOT AND COLD WATER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61181573A JPH0650451B2 (en) | 1986-08-01 | 1986-08-01 | Hot water mixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6337411A true JPS6337411A (en) | 1988-02-18 |
| JPH0650451B2 JPH0650451B2 (en) | 1994-06-29 |
Family
ID=16103165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61181573A Expired - Lifetime JPH0650451B2 (en) | 1986-08-01 | 1986-08-01 | Hot water mixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650451B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02146609A (en) * | 1988-11-29 | 1990-06-05 | Matsushita Electric Ind Co Ltd | Hot-water/water mixing controller |
| JPH02306314A (en) * | 1989-05-19 | 1990-12-19 | Matsushita Electric Ind Co Ltd | Hot/cold water mixing controller |
| WO2008085810A1 (en) * | 2007-01-05 | 2008-07-17 | Masco Corporation Of Indiana | Fluid delivery control system |
| CN107967010A (en) * | 2016-10-20 | 2018-04-27 | 樱花卫厨（中国）股份有限公司 | Water heater intelligent temperature control system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603705A (en) * | 1983-06-21 | 1985-01-10 | Matsushita Electric Ind Co Ltd | Control valve device |
-
1986
- 1986-08-01 JP JP61181573A patent/JPH0650451B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603705A (en) * | 1983-06-21 | 1985-01-10 | Matsushita Electric Ind Co Ltd | Control valve device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02146609A (en) * | 1988-11-29 | 1990-06-05 | Matsushita Electric Ind Co Ltd | Hot-water/water mixing controller |
| JPH02306314A (en) * | 1989-05-19 | 1990-12-19 | Matsushita Electric Ind Co Ltd | Hot/cold water mixing controller |
| WO2008085810A1 (en) * | 2007-01-05 | 2008-07-17 | Masco Corporation Of Indiana | Fluid delivery control system |
| US7802733B2 (en) | 2007-01-05 | 2010-09-28 | Masco Corporation Of Indiana | Fluid delivery control system |
| CN107967010A (en) * | 2016-10-20 | 2018-04-27 | 樱花卫厨（中国）股份有限公司 | Water heater intelligent temperature control system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0650451B2 (en) | 1994-06-29 |
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