JPS6337410A - Hot water and cold water mixer - Google Patents
Hot water and cold water mixerInfo
- Publication number
- JPS6337410A JPS6337410A JP18157286A JP18157286A JPS6337410A JP S6337410 A JPS6337410 A JP S6337410A JP 18157286 A JP18157286 A JP 18157286A JP 18157286 A JP18157286 A JP 18157286A JP S6337410 A JPS6337410 A JP S6337410A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- deviation
- valve
- water supply
- closing speed
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 238000001514 detection method Methods 0.000 claims 2
- 238000000034 method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Control Of Temperature (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (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
温の制御を行う渇水混合装置に係り、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渇水混合装置に関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a drought mixing device that controls hot water temperature by changing the mixing ratio of hot water and water using a valve. The present invention relates to a drought 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)
渇水混合装置は1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 dry 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 boiler or the like. 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渇水混合装置として
、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即ち
利得を1つだけ限定し該利得の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 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 temperature of the supplied hot water (actual hot water temperature). Two types of data on the opening/closing speed are stored as control characteristics in a storage device such as a ROM, and the rate of change in the opening/closing speed of the valve, that is, the gain is limited to only one, and the valve opening/closing speed is determined according to the deviation according to the characteristics of the gain. 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渇水混合装置
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 drought mixing device in which the valve opening/closing speed is variable, control characteristics are selected that limit the valve opening/closing speed to those with low gain, so if the deviation is large during pressure fluctuations, the opening/closing speed is sufficiently large. Therefore, there was a problem in that it took 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目標温度に近い低偏
差域においても変化率が大きくなるため、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 problem, it is possible to change the slope of the gain and increase the opening/closing speed of the valve in the high deviation area, but if the opening/closing speed is increased, the change will also occur in the low deviation area near the target temperature. As the rate increases, 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
変動時の偏差が所定値を超える時には利得の大きい制御
特性を選択しかつ所定時間保持して実湯温と目標温度と
の偏差に基づいて制御を行うが、所定時間経過後は通常
の利得の小さい制御特性を選択し、この制御特性に従い
偏差に応じてバルブの開閉速度を決定する渇水混合装置
を提供し、目標湯温への到達時間の短縮とともにハンチ
ングの発生の防止を図ることを目的としている。This invention was made in view of the above problem, and when the deviation during pressure fluctuation exceeds a predetermined value, a control characteristic with a large gain is selected and held for a predetermined time to reduce the deviation between the actual hot water temperature and the target temperature. However, after a predetermined period of time has elapsed, a normal control characteristic with a small gain is selected, and according to this control characteristic, the valve opening/closing speed is determined according to the deviation. The purpose is to shorten the arrival time and prevent hunting from occurring.
(問題点を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する混合水管に接続し、給湯管
にそれぞれ湯および水の流量を調節可能な給湯バルブお
よび給水バルブを設け、これら給湯バルブおよび給水バ
ルブを、圧力変動発生時に前記混合水管内の湯温と目標
湯温との偏差に基づき決定されたバルブ開閉速度で駆動
して前記混合水管内の湯温を制御する渇水混合装置にお
いて、前記偏差に対するバルブ開閉速度の利得が異なる
複数の制御特性を記憶した記憶手段と、該記憶手段に記
憶された複数の制御特性から前記偏差に基づいて1つの
制御特性を選択する選択手段と、前記偏差が所定値を超
える時に前記選択手段に選択した制御特性を所定時間保
持させて該所定時間前記選択手段が他の制御特性を選択
することを禁止する保持手段と、前記選択手段により選
択された制御特性に従い前記偏差に基づいてバルブ開閉
速度を検索する速度決定手段と、を設けたことを要旨と
する。(Means for Solving the Problems) 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 that mixes hot water and water, and connects the hot water supply pipe with hot water and water, respectively. A hot water supply valve and a water supply valve whose flow rates can be adjusted are provided, and these hot water supply valves and water supply valves are driven at a valve opening/closing speed determined based on the deviation between the hot water temperature in the mixing water pipe and the target hot water temperature when pressure fluctuation occurs. In the drought mixing device, the water temperature in the mixing water pipe is controlled by a storage means storing a plurality of control characteristics having different valve opening/closing speed gains with respect to the deviation; selection means for selecting one control characteristic based on the deviation; and when the deviation exceeds a predetermined value, the selection means holds the selected control characteristic for a predetermined time, and the selection means selects another control characteristic for the predetermined time. The present invention is characterized in that the present invention is provided with a holding means for prohibiting the valve opening/closing speed from occurring, and a speed determining means for searching the valve opening/closing speed based on the deviation in accordance with the control characteristic selected by the selection means.
(作用)
この発明にかかる渇水混合装置によれば、複数の制御特
性の内から、偏差に応じて1つの制御特性を選択すると
ともに、利得の小さな制御特性を選択している時に圧力
変動が発生し偏差が所定値を超えると利得の大きな制御
特性を選択して所定時間保持し、該所定時間は他の制御
特性が選択されることは無い、したがって、偏差が大き
い場合に大きな開閉速度の制御特性を設定することが可
能となり、目標湯温への到達時間の短縮が図れ、また、
所定時間後、小さな利得のバルブ開閉速度制御特性が選
択される為、ハンチングの発生が防止できる。(Function) According to the drought mixing device according to the present invention, one control characteristic is selected from among a plurality of control characteristics according to the deviation, and pressure fluctuation occurs when a control characteristic with a small gain is selected. When the deviation exceeds a predetermined value, a control characteristic with a large gain is selected and held for a predetermined time, and no other control characteristics are selected during the predetermined time. Therefore, when the deviation is large, a large opening/closing speed is controlled. It is now possible to set the characteristics, shortening the time it takes to reach the target water temperature, and
After a predetermined time, a valve opening/closing speed control characteristic with a small gain is selected, so hunting can be prevented from occurring.
(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渇水
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 drought 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)と連動して
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(IS)へ導く混合水
管、(18)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、(18)は目標湯温の設
定並びに装置の駆動・停止等の指令を行う操作器、(2
0)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(19)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t2種の制御特性(A)、(
B)が記憶されている。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 water supply valve (14) 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
(18) is a temperature sensor that detects the temperature of the mixed water (actual water temperature) in the mixing water pipe (15), (18) is a target An operating device for setting the water temperature and giving commands to start and stop the device, etc. (2)
0) is a controller composed of a one-chip microcomputer having a CPU, ROM, etc., and performs control based on the operation of the operating device (19) and the output signal of the temperature sensor (18), etc.;
(21) has a drive circuit, a motor, etc., and a controller (20)
) is a driver that drives the valves (13) and (14) based on the output signal of the valve (13) and (14). The ROM of the one-chip microcomputer of the controller (20) stores the actual water temperature (TM) as shown in Figure 5.
The valve opening/closing speed (R) can be specified according to the deviation (Δt) between the target hot water temperature (TO) and the target water temperature (TO).
B) is stored.
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可能である。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。It goes without saying that three or more types of control characteristics can be stored in ROM.
It is also possible to store it in This controller (20) corresponds to storage means, selection means, holding means and speed determination means.
この渇水混合装置は、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(TM )の制
御を行う、なお、以下の説明を簡単にするため、目標湯
温(To)は39.5 [”0)とする。This drought mixing device controls the actual hot water temperature (TM) by executing a series of processes shown in the flowcharts of FIGS. To) is 39.5 ["0).
この制御は、第2図に示すメインルーチンを行う、すな
わち、まず、ステップCP+)において、フラグ(Fl
)(F2)等の初期値設定等の初期化を行い、次のステ
ップ(F2)で実湯温(TM )を読み込み、続くステ
ップ(F3)で読み込んだ実湯温(TM )を補正して
補正実湯温(TM ’)を算出する。この後、ステップ
(F4)において、補正実湯温(TM’)と目標湯温(
To)との偏差(ΔT)を算出し1、次のステップ(F
5)で後述するように偏差(ΔT)に基づいてバルブ開
閉速度(R)の制御特性(K)を選択する。なお、この
実施例では、第5図に示すように、制御特性(K)とし
て偏差(ΔT)に対するゲイン(利得)の大きな特性(
A)とゲインの小さな特性(B)とから1つが選択され
、上記ステップ(P+)では特性(B)゛が初期設定さ
れる。そして、この第2図に示されるステップ(F6)
で選択された制御特性(K)に基づいて偏差(ΔT)か
らバルブ開閉速度(R)をマツプ検索し、続くステップ
(P 7)の出力処理でバルブモータを駆動して給湯バ
ルブ(13)と給水バルブ(14)とを駆動する。This control performs the main routine shown in FIG. 2, that is, first, in step CP+, a flag (Fl
) (F2), etc., read the actual hot water temperature (TM ) in the next step (F2), and correct the read actual hot water temperature (TM ) in the following step (F3). Calculate the corrected actual hot water temperature (TM'). After this, in step (F4), the corrected actual hot water temperature (TM') and the target hot water temperature (
Calculate the deviation (ΔT) from 1 and the next step (F
As described below in 5), the control characteristic (K) of the valve opening/closing speed (R) is selected based on the deviation (ΔT). In addition, in this embodiment, as shown in FIG.
One is selected from A) and the characteristic (B) with a small gain, and in the step (P+), the characteristic (B) is initialized. Then, step (F6) shown in this FIG.
The valve opening/closing speed (R) is searched from the deviation (ΔT) based on the control characteristic (K) selected in the map, and the valve motor is driven in the output processing of the subsequent step (P7) to connect the hot water supply valve (13). The water supply valve (14) is driven.
上記ステップ(F5)における制御特性(K)の選択は
、第3図に示す一連の処理も実行して行う。まず、ステ
ップ(Q +)において、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(
Q7)へ進み、フラグ(Fl)が0であればステップ(
Q2)へ進む、このフラグ(Fl)は、後述するように
実湯温(TM )と目標湯温(To)との偏差(ΔT)
が所定値(例えば、 0.5 [”0] )より小さい
状態が一定時間(to)継続した時(以下、安定出湯状
態と称す)にOが設定され、前述したステップ(Pl)
の初期設定では1が設定される。ステップ(Q2)1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(Qu)へ進み、フラグ(
F2)が0であればステップ(Q3)へ進む。The selection of the control characteristic (K) in the above step (F5) is performed by also executing a series of processes shown in FIG. First, in step (Q +), it is determined whether the flag (Fl) is 1 or not, and if the flag (Fl) is 1, step (
Proceed to Q7), and if the flag (Fl) is 0, step (
Proceed to Q2). This flag (Fl) indicates the deviation (ΔT) between the actual hot water temperature (TM) and the target hot water temperature (To), as described later.
O is set when the state where is smaller than a predetermined value (for example, 0.5 ["0]") continues for a certain period of time (hereinafter referred to as stable hot water supply state), and the step (Pl) described above is set.
The initial setting is 1. Step (Q2) 1 judges whether the flag (F2) is 1 or not, and determines whether the flag (F2) is 1 or not.
If F2) is 1, proceed to step (Qu) and flag (
If F2) is 0, proceed to step (Q3).
このフラグ(F2)は、ステップ(P+)の初期設定で
は0が設定されるが、後述するように他のバルブの開閉
による圧力変動に起因して実湯温(TM)と目標湯温(
To)との偏差(ΔT)(ΔT=TM−TO)の絶対値
(1ΔTl)が所定値(例えば、2[℃])を超えた場
合等に1が設定される。ステップ(Q3)においては、
上述の偏差の絶対値(1ΔTl)が2[℃]を超えてい
るか否かを判別する。そして、このステップ(Q3)で
、絶対値(1ΔTl)が2[℃]以下であると判断され
ると再度一連の処理を繰り返し実行し、また、絶対値(
IΔTl)が2[℃]を超えていると判断されると・続
くステップ(Q 4) (Q s) (Q a)び処理
を行う、ステップ(Q4)ではフラグ(F2)に1を設
定し、また、ステップ(Q s) Tは制御特性(K)
に大きなゲインのAを設定し、さらに、ステップ(Q6
)ではゲインアップタイマ(Up)をリセットして所定
時間(TA )の計時を開始する。すなわち、他のバル
ブの開閉による圧力変動に起因して、実湯温(TM )
が目標湯温(To)に対して大きく変動した場合、フラ
グ(F2)に1が設定され、また、制御特性(K)に大
きなゲインの特性(A)が設定され、さらに、ゲインア
ップタイマ(Up)が作動して、この特性(A)を維持
する時間(TA )を計時する。したがって、バルブの
開閉速度(R)は後の出力処理゛で所定時間(TA )
の間大きな速度が設定され、飛び上りを生じること無く
実湯温(TM)を速やかに目標湯温(TO)へ収束させ
ることができる。This flag (F2) is set to 0 in the initial setting of step (P+), but as will be described later, due to pressure fluctuations due to the opening and closing of other valves, the actual hot water temperature (TM) and the target hot water temperature (
1 is set when the absolute value (1ΔTl) of the deviation (ΔT) (ΔT=TM−TO) from the difference (ΔT) (ΔT=TM−TO) exceeds a predetermined value (for example, 2 [° C.]). In step (Q3),
It is determined whether the absolute value (1ΔTl) of the above-mentioned deviation exceeds 2 [° C.]. Then, in this step (Q3), if it is determined that the absolute value (1ΔTl) is less than or equal to 2 [°C], the series of processes is repeated again, and the absolute value (
If it is determined that IΔTl) exceeds 2 [℃], the following steps (Q4) (Qs) (Qa) and processing are performed.In step (Q4), the flag (F2) is set to 1. , and the step (Q s) T is the control characteristic (K)
Set a large gain A to , and then step (Q6
), the gain up timer (Up) is reset and starts counting a predetermined time (TA). In other words, due to pressure fluctuations due to the opening and closing of other valves, the actual water temperature (TM)
If there is a large change in the target hot water temperature (To), the flag (F2) is set to 1, the control characteristic (K) is set to a large gain characteristic (A), and the gain up timer (To) is set to 1. Up) is activated and the time (TA) for maintaining this characteristic (A) is measured. Therefore, the opening/closing speed (R) of the valve is determined by the predetermined time (TA) in the subsequent output processing.
A high speed is set during this period, and the actual hot water temperature (TM) can be quickly converged to the target hot water temperature (TO) without any jumps.
ステップ(Q7)においては、偏差の絶対値(1ΔTl
)が微小の所定値(例えば、0.5[℃])以下か否か
、換言すれば実湯温(TM )が目標湯温(TO)に到
達したか否かを判断し、絶対値(1ΔTl)が0.5
[”O]を超えていると判断されるとステップ(Q8)
で安定タイマ(St)をリセットして所定時間の計時を
開始し、また、絶対値(IΔTl)が0.5 [”O]
以下であると判断されるとステップ(Q9)で安定タイ
マ(St)が計時を完了したか否かを判断する。このス
テップ(Q9)において、安定タイマ(St)が計時を
完了していると判断されると次のステップ(Q +o
)でフラグ(Fl)にOを設定し、また、安定タイマ(
St)が計時を未完了であると判断されると再度一連の
処理を繰り返し実行する。すなわち、実湯温(TM )
が目標湯温(To)に到達した状態が安定タイマ(St
)に設定された時間継続すると、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 (Q7), the absolute value of the deviation (1ΔTl
) is less than a predetermined minute value (for example, 0.5 [°C]), in other words, it is determined whether the actual water temperature (TM ) has reached the target water temperature (TO), and the absolute value ( 1ΔTl) is 0.5
If it is determined that it exceeds [”O], step (Q8)
The stability timer (St) is reset to start counting the predetermined time, and the absolute value (IΔTl) is 0.5 [”O]
If it is determined that the stability timer (St) is below, it is determined in step (Q9) whether or not the stability timer (St) has completed timing. In this step (Q9), when it is determined that the stability timer (St) has completed timing, the next step (Q + o
), set the flag (Fl) to O, and also set the stability timer (
If it is determined that St) has not completed the time measurement, the series of processes is repeated again. In other words, the actual water temperature (TM)
The stability timer (St) reaches the target water temperature (To).
), 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(Qu)においては、ゲインアップタイマ(U
p)が計時を完了した否かを判別する。このステー2プ
(Qo)では、計時が未完了であると判断されると再度
一連の処理を繰り返し実行するが、計時が完了したと判
断されるとステップ(Q 12 ) (Q 13 )
(Q +4 ) (Q +s )でフラグ(Fl
)に1を設定するとともフラグ(F2)に0を設定し、
また、制御特性(K)にゲインの小さいBを設定し、さ
らに、安定タイマ(St)をリセットして計時を開始す
る。したがって、ゲインの大きな特性(A)を所定時間
(Ta)!!持した後には、ゲインの小さな特性(B)
が設定されるため、バルブ開閉速度(R)が小さくなり
ハンチングを生じることも無い。In step (Qu), a gain up timer (U
It is determined whether or not p) has completed timing. In this step 2 (Qo), if it is determined that the time measurement is incomplete, the series of processes is repeated again, but if it is determined that the time measurement is completed, the steps (Q 12 ) (Q 13 )
(Q +4) (Q +s) flag (Fl
) is set to 1, and the flag (F2) is set to 0,
Further, the control characteristic (K) is set to B, which has a small gain, and furthermore, the stability timer (St) is reset and time measurement is started. Therefore, the characteristic (A) with large gain is maintained for a predetermined time (Ta)! ! After holding, the characteristic with small gain (B)
is set, the valve opening/closing speed (R) becomes small and hunting does not occur.
このように、この実施例にかかる渇水混合装置は、カラ
ン(18)から出湯中において圧力変動等により偏差(
Δt)が大きい場合には、大きな利得の制御特性(A)
を選択してこれを所定時間保持するため、第4図に示す
ように、圧力変動時すなわち偏差(ΔT)が2[℃]を
超えた時から所定時間(TA )の間はバルブ(13)
、(14)に大きな開閉速度(R)が設定され、ハン
チングを生じること無く実油温(TM )を速めかに目
標湯温(TO)へ到達させることができる。As described above, the drought water mixing device according to this embodiment prevents deviation (
When Δt) is large, the control characteristic of large gain (A)
In order to select and maintain this for a predetermined time, as shown in Figure 4, the valve (13) is activated for a predetermined time (TA) from when the pressure fluctuates, that is, when the deviation (ΔT) exceeds 2 [°C].
, (14) are set to a large opening/closing speed (R), so that the actual oil temperature (TM) can quickly reach the target hot water temperature (TO) without causing hunting.
なお、上述した実施例では、−次回数的な制御特性(A
)、CB)を採用するが、二次あるいは三次函数的な制
御特性も設定できることは言うまでも無く、また、制御
器(20)はワンチップマイコンによること無く通常の
回路で専用的に構成することも可婆であることは言うま
でも無い。In addition, in the above-mentioned embodiment, the control characteristic (A
), CB), but it goes without saying that quadratic or cubic functional control characteristics can also be set, and the controller (20) is configured exclusively with a normal circuit without using a one-chip microcomputer. Needless to say, she is also very talented.
(発明の効果)
以上説明してきたように、この発明にかかる渇水混合装
置によれば、他のバルブの開閉による圧力変動に起因し
て実湯温と目標湯温との偏差が所定値を超えると、所定
時間の間大きな開閉速度でバルブを駆動するため、速や
かに目標湯温へ到達させることができる。(Effects of the Invention) As explained above, according to the drought mixing device according to the present invention, the deviation between the actual hot water temperature and the target hot water temperature exceeds a predetermined value due to pressure fluctuations caused by opening and closing of other valves. Since the valve is driven at a high opening/closing speed for a predetermined period of time, the target water temperature can be quickly reached.
第1図から第5図はこの発明の一実施例にかかる渇水混
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(記憶手
段、選択手段、保持手段)
21・・・・・・駆動器1 to 5 show a drought 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 (memory means, selection means, holding means) 21...Driver
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
制御手段とを備えた渇水混合装置において、 前記偏差に対するバルブ開閉速度の利得が異なる複数の
制御特性を記憶した記憶手段と、 該記憶手段に記憶された複数の制御特性から前記偏差に
基づいて1つの制御特性を選択する選択手段と、 前記偏差が所定値を超える時に前記選択手段が選択した
制御特性を所定時間保持させて該所定時間前記選択手段
が他の制御特性を選択することを禁止する保持手段と、 前記選択手段により選択された制御特性に従い前記偏差
に基づいてバルブ開閉速度を検索する速度決定手段と、 を備えることを特徴とする湯水混合装置。[Scope of Claims] Driving means for driving a hot water supply valve that controls the amount of hot water at a predetermined temperature passing through and a water supply valve that controls the amount of water that passes through one shaft or two shafts in conjunction with each other; A mixing water pipe capable of mixing a predetermined amount of hot water passing through the hot water supply valve and a predetermined amount of water passing through the water supply valve, a temperature detection means for detecting the temperature of the water in the mixing water pipe, and the temperature detection means. and 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 the deviation between the detected temperature of the means and the target temperature, the dry water mixing device comprising: storage means storing a plurality of control characteristics having different valve opening/closing speed gains relative to the deviation; a selection means for selecting one control characteristic based on the deviation from the plurality of control characteristics stored in the storage means; holding means for holding the control characteristic selected by the selection means for a predetermined period of time when a predetermined value is exceeded, and prohibiting the selection means from selecting another control characteristic for the predetermined period; and a control characteristic selected by the selection means. A hot water mixing device comprising: speed determining means for searching a valve opening/closing speed based on the deviation according to the deviation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18157286A JPS6337410A (en) | 1986-08-01 | 1986-08-01 | Hot water and cold water mixer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18157286A JPS6337410A (en) | 1986-08-01 | 1986-08-01 | Hot water and cold water mixer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6337410A true JPS6337410A (en) | 1988-02-18 |
Family
ID=16103146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18157286A Pending JPS6337410A (en) | 1986-08-01 | 1986-08-01 | Hot water and cold water mixer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6337410A (en) |
-
1986
- 1986-08-01 JP JP18157286A patent/JPS6337410A/en active Pending
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