JP2962164B2 - Hot water mixing equipment - Google Patents

Hot water mixing equipment

Info

Publication number
JP2962164B2
JP2962164B2 JP25813594A JP25813594A JP2962164B2 JP 2962164 B2 JP2962164 B2 JP 2962164B2 JP 25813594 A JP25813594 A JP 25813594A JP 25813594 A JP25813594 A JP 25813594A JP 2962164 B2 JP2962164 B2 JP 2962164B2
Authority
JP
Japan
Prior art keywords
hot water
deviation
mixing valve
flow rate
mixing
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 - Fee Related
Application number
JP25813594A
Other languages
Japanese (ja)
Other versions
JPH08121794A (en
Inventor
博明 ▲よし▼田
白井  滋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP25813594A priority Critical patent/JP2962164B2/en
Publication of JPH08121794A publication Critical patent/JPH08121794A/en
Application granted granted Critical
Publication of JP2962164B2 publication Critical patent/JP2962164B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、流量制御および流量混
合たとえば湯と水を混合して適温の給湯をすることが可
能な湯水混合装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot and cold water mixing apparatus capable of controlling and mixing flow rates, for example, mixing hot water and water to supply hot water at an appropriate temperature.

【0002】[0002]

【従来の技術】従来のこの種の湯水混合装置(例えば特
開昭64−3436号公報)を、図6に示す。同図にお
いて、1は熱交換器2を通る加熱路3および熱交換器2
と並列のバイパス路4とで構成される給湯回路である。
5は熱交換器2を加熱するバーナ等の加熱装置、6は加
熱装置5の発熱量を制御するガス比例弁等の能力制御装
置である。7は給湯回路1の入水側に設けられ給水温度
を検出する水温検出器であり、8は給湯回路1の出湯側
に設けられて混合湯温等を検出する湯温検出器である。
9は熱交換器2への流量を検出する流量検出器で、加熱
路3に配されている。10はバイパス路4に設けられて
開度調節によりバイパス水量を制御して湯と水の混合比
率を制御する混合弁である。11は温度設定器である。
12は制御回路部で、水温検出器7と流量検出器9と温
度設定器11の信号により能力制御装置6を作動させる
熱量制御部13と、温度設定器11と湯温検出器8と流
量検出器9との信号により混合弁10を付勢するサーボ
モータ等の駆動手段の付勢量を設定する付勢量設定手段
14とを内蔵している。15は最大流量を制御する水ガ
バナである。
2. Description of the Related Art FIG. 6 shows a conventional water / water mixing apparatus of this kind (for example, Japanese Patent Application Laid-Open No. 64-3436). In the figure, 1 is a heating path 3 passing through a heat exchanger 2 and a heat exchanger 2.
And a bypass 4 in parallel with the hot water supply circuit.
Reference numeral 5 denotes a heating device such as a burner for heating the heat exchanger 2, and reference numeral 6 denotes a capacity control device such as a gas proportional valve for controlling the calorific value of the heating device 5. Reference numeral 7 denotes a water temperature detector provided on the water inlet side of the hot water supply circuit 1 and detects a water supply temperature. Reference numeral 8 denotes a water temperature detector provided on the outlet side of the hot water supply circuit 1 and detects a mixed hot water temperature or the like.
Reference numeral 9 denotes a flow rate detector for detecting a flow rate to the heat exchanger 2, which is disposed in the heating path 3. A mixing valve 10 is provided in the bypass passage 4 to control the amount of hot water and water by controlling the amount of bypass water by adjusting the opening. Reference numeral 11 denotes a temperature setting device.
Reference numeral 12 denotes a control circuit unit, a calorie control unit 13 for operating the capacity control unit 6 based on signals from the water temperature detector 7, the flow rate detector 9, and the temperature setter 11, the temperature setter 11, the hot water temperature detector 8, and the flow rate detection. An energizing amount setting means 14 for setting an energizing amount of a driving means such as a servomotor for energizing the mixing valve 10 in accordance with a signal from the device 9 is built in. Reference numeral 15 denotes a water governor for controlling the maximum flow rate.

【0003】[0003]

【発明が解決しようとする課題】しかしながら上記した
ような従来の湯水混合装置では、流量変動を流量検出器
9で検出した後に、湯温検出器8で検出した混合湯温と
設定温度との偏差を求め、偏差に応じて付勢量を決定
し、混合弁10を駆動していた。すなわち、混合湯温と
設定湯温の偏差が検出された後に、混合弁10の弁開度
を調節していたため、流量変更から混合弁10を駆動す
るまでの制御遅れが生じ、一時的に出湯温度が設定湯温
に対し大きく上回るオーバーシュートまたは大きく下回
るアンダーシュートが発生していた。そのため使用者が
流量調節を行った場合に不快感を覚えることがあった。
特にオーバーシュートに関しては、火傷を起こす高温出
湯が考えられ、危険であるという課題があった。
However, in the above-described conventional hot water mixing apparatus, after the flow rate fluctuation is detected by the flow rate detector 9, the deviation between the mixed hot water temperature detected by the hot water temperature detector 8 and the set temperature is detected. Was calculated, the amount of bias was determined according to the deviation, and the mixing valve 10 was driven. That is, since the valve opening of the mixing valve 10 is adjusted after the difference between the mixed hot water temperature and the set hot water temperature is detected, a control delay from changing the flow rate to driving the mixing valve 10 occurs, and the tap water is temporarily discharged. An overshoot in which the temperature was significantly higher than the set hot water temperature or an undershoot in which the temperature was significantly lower than the set hot water temperature occurred. Therefore, when the user adjusts the flow rate, the user may feel discomfort.
In particular, with regard to overshoot, there is a problem that high-temperature hot water that causes a burn is considered dangerous.

【0004】本発明は上記課題を解決するものであり、
流量変更の入力信号に応じて流量調節弁の弁開度調節を
開始するとともに、流量調節弁の付勢量に応じて生じる
湯温偏差を予測し、湯温偏差が検出される以前に予測偏
差に基づいて混合弁を駆動することにより、流量変更に
よるオーバーシュートおよびアンダーシュートのない湯
水混合装置を提供することを第一の目的としている。
[0004] The present invention is to solve the above problems,
In response to the input signal for changing the flow rate, the valve opening of the flow control valve is started to be adjusted, and the hot water temperature deviation that occurs in accordance with the amount of bias of the flow control valve is predicted. It is a first object of the present invention to provide a hot and cold water mixing apparatus free from overshoot and undershoot due to a change in flow rate by driving a mixing valve based on the above.

【0005】第二の目的は、流量変更によりオーバーシ
ュートおよびアンダーシュートが生じた場合に流量変更
の入力信号に応じた最大偏差を補正し、流量変更の入力
信号に応じて記憶された最大偏差に基づいて流量変更時
に混合弁弁開度を調節することによって、どのような使
用条件下においても確実に流量変更によるオーバーシュ
ートおよびアンダーシュートを防止できる湯水混合装置
を提供することにある。
A second object is to correct the maximum deviation according to the flow change input signal when overshoot and undershoot occur due to the flow change, and to reduce the maximum deviation stored according to the flow change input signal. An object of the present invention is to provide a hot and cold water mixing apparatus that can reliably prevent overshoot and undershoot due to flow rate change under any use condition by adjusting the opening of the mixing valve when the flow rate is changed based on the flow rate change.

【0006】第三の目的は、流量変更時においてオーバ
ーシュートおよびアンダーシュートが生じない、また
は、使用者がその最大偏差(温度変化)を感じない程度
であった場合、流量変更時の混合弁弁開度調節を行わな
いことにより、混合弁駆動手段の使用回数を低減できる
とともに、使用電力の低減を図ることができる湯水混合
装置を提供することにある。
A third object is to provide a mixing valve for changing the flow rate when overshoot and undershoot do not occur when the flow rate is changed or when the user does not feel the maximum deviation (temperature change). An object of the present invention is to provide a hot and cold water mixing apparatus that can reduce the number of times of using the mixing valve driving means and reduce power consumption by not performing the opening degree adjustment.

【0007】第四の目的は、流量変更時においてオーバ
ーシュートおよびアンダーシュートの防止を必要としな
い非温度設定範囲において、流量変更時の混合弁弁開度
調節を行わないことにより、さらに混合弁駆動手段の使
用回数を低減できるとともに、使用電力の低減を図るこ
とができる湯水混合装置を提供することにある。
A fourth object of the present invention is to further control the opening of the mixing valve when the flow rate is changed in a non-temperature setting range where it is not necessary to prevent overshoot and undershoot when the flow rate is changed. An object of the present invention is to provide a hot and cold water mixing apparatus capable of reducing the number of times of using the means and reducing the power consumption.

【0008】第五の目的は、流量変更時における温度偏
差が負側すなわちアンダーシュートが発生する場合、流
量変更時の混合弁弁開度調節を行わないことにより、混
合弁弁開度の過剰調節によるオーバーシュートを防止
し、さらに安全性の高い湯水混合装置を提供することに
ある。
A fifth object is that when the temperature deviation at the time of changing the flow rate is on the negative side, ie, undershoot occurs, the opening of the mixing valve is not adjusted at the time of changing the flow rate, so that the opening of the mixing valve is excessively adjusted. An object of the present invention is to provide a hot and cold water mixing apparatus that prevents overshoot caused by the water and that is safer.

【0009】[0009]

【課題を解決するための手段】上記第一の目的を達成す
るために本発明の湯水混合装置は、湯と水の混合比を調
節する混合弁と、混合弁を駆動する混合弁駆動手段と、
流量調節を行う流量調節弁と、流量調節弁を駆動する流
量調節弁駆動手段と、混合弁駆動手段の駆動制御を行う
混合弁制御手段と、流量調節弁の駆動制御を行う流量調
節弁制御手段と、混合弁の下流側に設けられた湯温検出
手段と、混合湯温を設定する湯温設定手段と、混合湯量
を設定する湯量設定手段と、湯温設定手段によって設定
された設定温度と湯温検出手段から検出された混合湯温
の偏差を算出する偏差検出手段と、偏差検出手段の算出
した偏差に応じて混合弁の付勢量を演算し、混合弁制御
手段に出力する混合弁付勢量設定手段と、湯量設定手段
からの入力信号に応じて流量調節弁制御手段に流量調節
弁の付勢量を出力するとともに、混合弁の付勢量を混合
弁制御手段に出力する流量調節時付勢量設定手段とを備
えたものである。
To achieve the first object, a hot water mixing apparatus of the present invention comprises a mixing valve for adjusting a mixing ratio of hot water and water, and mixing valve driving means for driving the mixing valve. ,
Flow control valve for controlling flow rate, flow control valve driving means for driving the flow control valve, mixing valve control means for controlling driving of the mixing valve driving means, flow control valve control means for controlling driving of the flow control valve And hot water temperature detecting means provided downstream of the mixing valve, hot water temperature setting means for setting the mixed hot water temperature, hot water setting means for setting the mixed hot water amount, and a set temperature set by the hot water setting means. A deviation detecting means for calculating a deviation of the mixed hot water temperature detected from the hot water temperature detecting means, and a mixing valve for calculating an energizing amount of the mixing valve according to the deviation calculated by the deviation detecting means and outputting it to the mixing valve control means A flow rate for outputting the amount of bias of the flow control valve to the flow control valve control means in response to an input signal from the bias amount setting means and the hot water amount setting means, and outputting the bias amount of the mixing valve to the mixing valve control means. And an adjustment urging amount setting means.

【0010】上記第二の目的を達成するために本発明の
湯水混合装置は、湯量設定手段からの入力信号によって
流量調節時付勢量設定手段を介して、混合弁および流量
調節弁の弁開度が調節された場合に、所定の時間内に偏
差検出手段から検出された最大偏差と湯温設定手段から
の入力信号を補正または記憶する偏差記憶手段と、湯温
設定手段からの入力信号に応じた記憶偏差を偏差記憶手
段からて入力し、混合弁の付勢量を演算、設定、出力す
る流量調節時付勢量設定手段を設けたものである。
In order to achieve the second object, a hot water mixing apparatus according to the present invention is arranged such that a mixing valve and a flow control valve are opened via a flow control urging amount setting means in response to an input signal from a hot water setting means. When the degree is adjusted, the deviation storage means for correcting or storing the maximum deviation detected by the deviation detection means and the input signal from the hot water temperature setting means within a predetermined time, and the input signal from the hot water temperature setting means. The apparatus is provided with a flow rate control bias amount setting means for calculating, setting and outputting the bias amount of the mixing valve by inputting the corresponding storage deviation from the deviation storage means.

【0011】上記第三の目的を達成するために本発明の
湯水混合装置は、偏差記憶手段に記憶された偏差が所定
の値よりも小さい場合に流量調節時付勢量設定手段から
混合弁制御手段への出力を禁止する記憶偏差選択手段を
設けたものである。
In order to achieve the third object, the hot and cold water mixing apparatus according to the present invention is arranged such that when the deviation stored in the deviation storage means is smaller than a predetermined value, the mixing valve control is performed by the urging amount setting means at flow rate adjustment. A memory deviation selecting means for inhibiting output to the means.

【0012】上記第四の目的を達成するために本発明の
湯水混合装置は、湯温設定手段により設定された設定湯
温が非設定温度領域にある場合、流量調節時付勢量設定
手段から混合弁制御手段への出力を禁止する設定温度選
択手段を設けたものである。
In order to achieve the fourth object, the hot water mixing apparatus according to the present invention is configured such that when the hot water temperature set by the hot water setting means is in a non-setting temperature range, the urging amount setting means at the time of flow rate adjustment is used. There is provided a set temperature selecting means for prohibiting output to the mixing valve control means.

【0013】上記第五の目的を達成するために本発明の
湯水混合装置は、偏差記憶手段に記憶された偏差が負で
ある場合、流量調節時付勢量設定手段から混合弁制御手
段への出力を禁止する負側偏差選択手段を設けたもので
ある。
In order to achieve the fifth object, the hot and cold water mixing apparatus according to the present invention is arranged such that when the deviation stored in the deviation storage means is negative, the flow rate adjustment-time biasing amount setting means changes the flow from the urging amount setting means to the mixing valve control means. A negative deviation selecting means for inhibiting the output is provided.

【0014】[0014]

【作用】本発明の湯水混合装置は上記した構成により、
流量変更の入力信号に応じて流量調節弁の弁開度調節を
開始するとともに、流量調節弁の付勢量に応じて生じる
湯温偏差を予測し、湯温偏差が検出される以前に予測偏
差に基づいて混合弁を駆動することにより、流量変更に
よるオーバーシュートおよびアンダーシュートを防止す
るものである。
The hot and cold water mixing apparatus of the present invention has the above-described structure.
In response to the input signal for changing the flow rate, the valve opening of the flow control valve is started to be adjusted, and the hot water temperature deviation that occurs in accordance with the amount of bias of the flow control valve is predicted. By driving the mixing valve based on the above, overshoot and undershoot due to a change in the flow rate are prevented.

【0015】また本発明の湯水混合装置は上記した構成
により、流量変更によりオーバーシュートおよびアンダ
ーシュートが生じた場合に流量変更の入力信号に応じた
最大偏差を補正し、流量変更の入力信号に応じて記憶さ
れた最大偏差に基づいて流量変更時に混合弁弁開度を調
節することによって、どのような使用条件下においても
確実に流量変更によるオーバーシュートおよびアンダー
シュートを防止できるものである。
Further, in the water / water mixing apparatus of the present invention, when the overshoot and the undershoot occur due to the flow rate change, the maximum deviation corresponding to the flow rate change input signal is corrected, and the hot water mixing apparatus according to the flow rate change input signal is provided. By adjusting the opening of the mixing valve when the flow rate is changed based on the maximum deviation stored and stored, overshoot and undershoot due to the flow rate change can be reliably prevented under any use condition.

【0016】さらに本発明の湯水混合装置は上記した構
成により、流量変更時においてオーバーシュートおよび
アンダーシュートが生じない、または、使用者がその最
大偏差(温度変化)を感じない程度であった場合、流量
変更時の混合弁弁開度調節を行わないので、混合弁駆動
手段の使用回数の低減とともに、使用電力の低減を図っ
ているものである。
Further, the hot and cold water mixing apparatus of the present invention has the above-described configuration, and does not cause overshoot and undershoot when changing the flow rate, or when the user does not feel the maximum deviation (temperature change), Since the opening of the mixing valve is not adjusted when the flow rate is changed, the number of times of using the mixing valve driving means and the power consumption are reduced.

【0017】加えて本発明の湯水混合装置は上記した構
成により、流量変更時においてオーバーシュートおよび
アンダーシュートの防止を必要としない非温度設定範囲
において、流量変更時の混合弁弁開度調節を行わないこ
とにより、さらに混合弁駆動手段の使用回数の低減とと
もに、使用電力の低減を図っているものである。
In addition, the hot water mixing apparatus of the present invention, by the above-described configuration, adjusts the opening of the mixing valve when changing the flow rate in a non-temperature setting range where it is not necessary to prevent overshoot and undershoot when changing the flow rate. The absence of such an arrangement further reduces the number of times the mixing valve driving means is used and the power used.

【0018】また本発明の湯水混合装置は上記した構成
により、流量変更時における温度偏差が負側すなわちア
ンダーシュートが発生する場合、流量変更時の混合弁弁
開度調節を行わないことにより、混合弁弁開度の過剰調
節によるオーバーシュートの防止を図っているものであ
る。
Further, according to the above configuration, when the temperature deviation at the time of changing the flow rate is negative, that is, when the undershoot occurs, the mixing valve valve opening at the time of changing the flow rate is not adjusted. This is intended to prevent overshoot due to excessive adjustment of the valve opening.

【0019】[0019]

【実施例】以下本発明の実施例を図面にもとづいて説明
する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

【0020】図1は本発明の第一の実施例を示す構成図
である。図1において16は給湯管17を介して温水を
供給する給湯機であり、給湯管17は混合弁18に連通
している。混合弁18には、給湯管17と、給水管19
からそれぞれ湯と水が供給される。混合弁18は、混合
弁18の外部に設けられた混合弁駆動手段であるステッ
ピングモータ20により駆動されることによって、湯と
水の混合比率を調節する。21は混合弁18の下流側に
設けられ、混合湯温を検出する湯温検出手段である。2
2は混合弁18により混合された湯の流量を調節する流
量調節弁であり、止水機能も兼ね備えている。流量調節
弁22の駆動は、流量調節弁22の外部に設けられた流
量調節弁駆動手段であるステッピングモータ23により
行われている。温度調節および流量調節を行われた混合
湯は、出湯口24から吐出される。
FIG. 1 is a block diagram showing a first embodiment of the present invention. In FIG. 1, reference numeral 16 denotes a water heater that supplies hot water via a hot water supply pipe 17, and the hot water supply pipe 17 communicates with a mixing valve 18. The mixing valve 18 has a hot water supply pipe 17 and a water supply pipe 19.
Hot water and water are respectively supplied from The mixing valve 18 is driven by a stepping motor 20 as mixing valve driving means provided outside the mixing valve 18 to adjust the mixing ratio of hot water and water. Reference numeral 21 is a hot water temperature detecting means provided downstream of the mixing valve 18 for detecting the temperature of the mixed hot water. 2
Reference numeral 2 denotes a flow rate control valve for controlling the flow rate of the hot water mixed by the mixing valve 18, which also has a water stopping function. The flow control valve 22 is driven by a stepping motor 23 that is a flow control valve driving unit provided outside the flow control valve 22. The mixed hot water whose temperature and flow have been adjusted is discharged from the tap hole 24.

【0021】25は操作部であり、使用者が湯温を設定
する湯温設定手段26と、湯の流量を設定するととも
に、出湯の開始および停止を設定する湯量調節手段27
が設けられている。28は湯温検出手段21からの検出
される混合湯温Tと、湯温設定手段26によって設定さ
れる設定温度Tsの偏差ΔTを検出する偏差検出手段で
ある。混合弁付勢量設定手段29は偏差検出手段28で
検出した偏差に基づいて混合弁18の付勢量を演算、設
定し、ステッピングモータ20の駆動制御を行う混合弁
制御手段30に混合弁付勢量を出力する。31は湯量設
定手段27からの入力信号に応じた流量調節弁23の付
勢量を設定し、ステッピングモータ23の駆動制御を行
う流量調節弁制御手段32に出力するとともに、湯量設
定手段27からの入力信号に応じて偏差記憶手段33に
記憶されている記憶偏差ΔTmを読み込み、記憶偏差Δ
Tmに基づいて混合弁18の付勢量を設定し、混合弁制
御手段30に出力する流量調節時付勢量設定手段であ
る。偏差記憶手段33は湯量設定手段27からの入力信
号に応じて偏差(記憶偏差ΔTm)を記憶しているとと
もに、湯量設定手段27によって湯量の変更が入力され
た後にのみ、所定の時間、偏差検出手段28から偏差Δ
Tを入力し、その間の最大偏差に基づいて入力信号に応
じた記憶偏差ΔTmを補正するものである。34は入力
信号に応じた記憶偏差ΔTmの絶対値が所定偏差範囲と
して定めたΔT0以下である時に流量調節時付勢設定手
段31から混合弁制御手段30への出力を禁止する記憶
偏差選択手段である。35は設定温度Tsが(1)および
(2)に示す非設定温度範囲にある場合に流量調節時付勢
設定手段31から混合弁制御手段30への出力を禁止す
る設定温度選択手段である。
Reference numeral 25 denotes an operation unit. Hot water temperature setting means 26 for the user to set the hot water temperature, and hot water quantity adjusting means 27 for setting the flow rate of the hot water and setting the start and stop of hot water supply.
Is provided. Reference numeral 28 denotes a deviation detecting means for detecting a deviation ΔT between the mixed hot water temperature T detected by the hot water temperature detecting means 21 and the set temperature Ts set by the hot water setting means 26. The mixing valve urging amount setting means 29 calculates and sets the urging amount of the mixing valve 18 based on the deviation detected by the deviation detecting means 28, and provides the mixing valve control means 30 for controlling the driving of the stepping motor 20 to the mixing valve control means 30. Outputs momentum. Reference numeral 31 designates an urging amount of the flow control valve 23 in accordance with an input signal from the hot water setting means 27 and outputs the setting to a flow control valve control means 32 for controlling the driving of the stepping motor 23. The storage deviation ΔTm stored in the deviation storage means 33 is read in accordance with the input signal, and the storage deviation ΔTm is read.
This is a flow rate adjustment-time biasing amount setting unit that sets the biasing amount of the mixing valve 18 based on Tm and outputs the biasing amount to the mixing valve control unit 30. The deviation storage means 33 stores the deviation (storage deviation ΔTm) according to the input signal from the hot water amount setting means 27, and detects the deviation for a predetermined time only after the change of the hot water amount is input by the water amount setting means 27. Deviation from means 28
T is input, and the stored deviation ΔTm corresponding to the input signal is corrected based on the maximum deviation during T. Numeral 34 denotes a memory deviation selecting means for prohibiting the output from the flow rate adjustment energizing setting means 31 to the mixing valve control means 30 when the absolute value of the memory deviation ΔTm corresponding to the input signal is equal to or smaller than the predetermined deviation range ΔT0. is there. 35 indicates that the set temperature Ts is (1) and
This is a set temperature selecting means for prohibiting the output from the flow rate adjustment bias setting means 31 to the mixing valve control means 30 when the temperature is in the non-set temperature range shown in (2).

【0022】(1) Ts>Tmax (2) Ts>Tmin 36は入力信号に応じた記憶偏差ΔTmが負である時に
流量調節時付勢設定手段31から混合弁制御手段30へ
の出力を禁止する記憶偏差選択手段である。
(1) Ts> Tmax (2) Ts> Tmin 36 prohibits the output from the bias setting means 31 during flow adjustment to the mixing valve control means 30 when the storage deviation ΔTm corresponding to the input signal is negative. It is a memory deviation selecting means.

【0023】以上の構成において本実施例の動作を説明
する。出湯中、混合湯温は湯温検出手段28によって検
出され、偏差検出手段28において湯温設定手段25に
より設定された設定温度Tsとの偏差ΔTが求められ
る。混合弁付勢量設定手段29は偏差検出手段28によ
り求められた偏差ΔTに基づいて、混合弁18の付勢量
を設定し、混合弁制御手段30に付勢量を出力する。混
合弁制御手段30は混合弁付勢量設定手段29において
設定された付勢量だけステッピングモータ20を駆動す
る。混合弁18はステッピングモータ20によって駆動
され、湯と水の混合比率を変更する。このように混合湯
温が設定温度となるように、フィードバック制御が行な
われている。
The operation of the present embodiment in the above configuration will be described. During tapping, the temperature of the mixed hot water is detected by the hot water temperature detecting means 28, and the deviation detecting means 28 calculates a deviation ΔT from the set temperature Ts set by the hot water temperature setting means 25. The mixing valve urging amount setting unit 29 sets the urging amount of the mixing valve 18 based on the deviation ΔT obtained by the deviation detecting unit 28, and outputs the urging amount to the mixing valve control unit 30. The mixing valve control means 30 drives the stepping motor 20 by the urging amount set by the mixing valve urging amount setting means 29. The mixing valve 18 is driven by a stepping motor 20 to change the mixing ratio of hot water and water. As described above, the feedback control is performed so that the mixed hot water temperature becomes the set temperature.

【0024】出湯時に湯量設定手段27によって流量変
更が選択された場合の動作を図2に示す。湯量設定手段
27によって流量変更が選択されると、流量調節時付勢
量設定手段31に信号が出力される。流量調節時付勢量
設定手段31は、湯量設定手段27からの入力信号に応
じて流量調節弁22の付勢量を設定、出力するととも
に、湯量設定手段27からの入力信号に応じて偏差記憶
手段33に記憶されている記憶偏差ΔTmを入力する。
偏差記憶手段33において、記憶偏差ΔTmが入力信号
に応じて記憶されている例を湯量設定手段27による湯
量設定が5段階であるものとして(表1)に示す。
FIG. 2 shows the operation when the flow rate change is selected by the hot water amount setting means 27 at the time of tapping. When the flow rate change is selected by the hot water amount setting means 27, a signal is output to the flow rate adjusting urging amount setting means 31. The flow rate adjusting urging amount setting means 31 sets and outputs the urging amount of the flow rate control valve 22 in accordance with an input signal from the hot water amount setting means 27, and stores a deviation in accordance with an input signal from the hot water amount setting means 27. The storage deviation ΔTm stored in the means 33 is input.
An example in which the difference ΔTm is stored in the deviation storage means 33 in accordance with the input signal is shown in Table 1 assuming that the water amount setting by the water amount setting means 27 has five stages.

【0025】[0025]

【表1】 [Table 1]

【0026】(表1)において1行に記載されているの
は湯量変更前の設定であり、1列に記載れされているの
は流量変更後の設定である。例えば湯量設定手段27に
おいて湯量設定が3から5に変更された場合、ΔTmは
ー3である。
In Table 1, the setting in one row is the setting before the change in the amount of hot water, and the setting in the first column is the setting after the change in the flow rate. For example, when the hot water amount setting means 27 changes the hot water amount setting from 3 to 5, ΔTm is −3.

【0027】湯量設定手段27からの入力信号に応じて
入力された記憶偏差ΔTmが偏差記憶手段33に入力さ
れた後、まず記憶偏差ΔTmは記憶偏差選択手段34に
より、その絶対値が使用者の感じない偏差範囲として設
定された設定偏差範囲ΔT0以下であるか判定される。
記憶偏差ΔTmが設定偏差範囲ΔT0以下であれば、記
憶偏差選択手段34は流量調節時付勢量設定手段31か
ら混合弁制御手段30への付勢量信号出力を禁止する。
After the storage deviation ΔTm input in response to the input signal from the hot water amount setting unit 27 is input to the deviation storage unit 33, first, the storage deviation ΔTm is stored in the storage deviation selection unit 34, and the absolute value of the storage deviation ΔTm is determined by the user. It is determined whether the difference is equal to or smaller than a set deviation range ΔT0 set as a deviation range that is not felt.
If the storage deviation ΔTm is equal to or smaller than the set deviation range ΔT0, the storage deviation selecting unit 34 prohibits the output of the energizing amount signal from the energizing amount setting unit 31 during flow rate adjustment to the mixing valve control unit 30.

【0028】次に記憶偏差ΔTmは、負側偏差選択手段
36によってその値が負であるか判定される。記憶偏差
ΔTmが負であれば、負側偏差選択手段36は流量調節
時付勢量設定手段31から混合弁制御手段30への付勢
量信号出力を禁止する。これは記憶偏差ΔTmが負であ
る時に、記憶偏差ΔTmから設定したアンダーシュート
を防止する(すなわち湯の混合比率を多くする)方向へ
の混合弁18の付勢量が過剰であると、逆に危険性の高
いオーバーシュートを発生するためである。なお、本実
施例においては記憶偏差ΔTmが負のときには、流量調
節時付勢量設定手段31から混合弁制御手段30への付
勢量信号出力を禁止しているが、混合弁制御手段30へ
の付勢量を低減補正することによって、アンダーシュー
トを防止するとともにオーバーシュートの危険を低減す
ることが可能である。
Next, the negative deviation selecting means 36 determines whether the value of the stored deviation ΔTm is negative. If the stored deviation ΔTm is negative, the negative deviation selecting means 36 prohibits the output of the energizing amount signal from the energizing amount setting means 31 during flow rate adjustment to the mixing valve control means 30. This is because when the memory deviation ΔTm is negative and the bias amount of the mixing valve 18 in the direction of preventing the undershoot set from the memory deviation ΔTm (ie, increasing the mixing ratio of hot water) is excessive, the reverse occurs. This is because a highly dangerous overshoot occurs. In the present embodiment, when the memory deviation ΔTm is negative, the output of the energizing amount signal from the energizing amount setting means 31 during flow rate adjustment to the mixing valve control means 30 is prohibited. It is possible to prevent undershoot and reduce the danger of overshoot by correcting the amount of bias of the motor.

【0029】設定温度選択手段35は、設定温度Tsが
オーバーシュートおよびアンダーシュートの防止を必要
とする設定湯温範囲(下限設定湯温Tmin、上限設定
湯温Tmax)に属しない、すなわち(式1)または
(式2)を満足する非設定湯温範囲にあるかを判定す
る。設定湯温範囲は、たとえばシャワー使用時に頻度の
高い湯温範囲とし、Tmin=35℃、Tmax=42
℃とできる。設定温度Tsが非設定湯温範囲にあれば、
設定温度選択手段35は流量調節時付勢量設定手段31
から混合弁制御手段30への付勢量信号出力を禁止す
る。
The set temperature selecting means 35 determines that the set temperature Ts does not belong to the set hot water temperature range (lower set hot water temperature Tmin, upper set hot water temperature Tmax) which requires prevention of overshoot and undershoot. ) Or a non-set hot water temperature range that satisfies (Equation 2). The set hot water temperature range is, for example, a hot water temperature range that is frequently used when a shower is used. Tmin = 35 ° C., Tmax = 42
° C. If the set temperature Ts is in the non-set hot water temperature range,
The set temperature selecting means 35 is a biasing amount setting means 31 for flow rate adjustment.
Output of the urging amount signal to the mixing valve control means 30 is prohibited.

【0030】以上に列挙した記憶偏差選択手段34、設
定温度選択手段35、負側偏差選択手段36による判定
により、流量調節時付勢量設定手段31から混合弁制御
手段30への付勢量信号出力が禁止されない場合、流量
調節時付勢量設定手段31は記憶偏差ΔTmに基づいて
混合弁18の付勢量を演算、設定し、混合弁制御手段3
0へ出力する。混合弁制御手段30は入力した付勢量、
ステッピングモータ20を駆動し、混合弁18による湯
水の混合比率を変更する。
Based on the determinations made by the storage deviation selecting means 34, the set temperature selecting means 35, and the negative deviation selecting means 36 listed above, the energizing amount signal from the energizing amount setting means 31 during flow rate adjustment to the mixing valve control means 30 is determined. If the output is not prohibited, the flow rate adjustment bias amount setting means 31 calculates and sets the bias amount of the mixing valve 18 based on the stored deviation ΔTm, and the mixing valve control means 3
Output to 0. The mixing valve control means 30 determines the input bias amount,
The stepping motor 20 is driven to change the mixing ratio of hot and cold water by the mixing valve 18.

【0031】なお、本実施例においては記憶偏差選択手
段34、設定温度選択手段35、負側偏差選択手段36
により、記憶偏差ΔTmおよび設定温度Tsの判定を行
い、流量調節時付勢量設定手段31から混合弁制御手段
30への付勢量信号出力を禁止していたが、湯水の流入
条件(例えば給湯機16の給湯能力、給湯管17内の圧
力、給水管19内の圧力、給湯管17と給水管19の圧
力差など)によっては、いずれか、またはすべての選択
手段がなくてもよい。
In this embodiment, the storage deviation selecting means 34, the set temperature selecting means 35, and the negative deviation selecting means 36
The memory deviation ΔTm and the set temperature Ts are determined to inhibit the output of the energizing amount signal from the energizing amount setting means 31 during flow rate adjustment to the mixing valve control means 30. Depending on the hot water supply capacity of the machine 16, the pressure in the hot water supply pipe 17, the pressure in the water supply pipe 19, the pressure difference between the hot water supply pipe 17 and the water supply pipe 19, any or all of the selection means may not be provided.

【0032】図4は混合湯量変更時に湯量設定信号27
からの信号に応じて混合弁18を駆動せず、偏差検出手
段33によって偏差ΔTが検出された後に、偏差ΔTに
応じて混合弁を駆動するため、応答の遅れが生じアンダ
ーシュートおよびオーバーシュート(偏差ΔT)が大き
く出てしまう(図5は、流量変更時にアンダーシュート
およびオーバーシュートが逆に生じる場合を示してい
る)。
FIG. 4 shows a hot water amount setting signal 27 when the mixed hot water amount is changed.
Since the mixing valve 18 is not driven in response to the signal from the controller and the mixing valve is driven in accordance with the deviation ΔT after the deviation ΔT is detected by the deviation detecting means 33, a response delay occurs, resulting in undershoot and overshoot ( The deviation ΔT) becomes large (FIG. 5 shows a case where undershoot and overshoot occur in reverse when the flow rate is changed).

【0033】図3は混合湯量変更時に湯量設定信号27
からの信号に応じて混合弁18の付勢量を設定、混合弁
18を駆動するので、偏差検出手段33によって偏差Δ
Tが検出されるまでの応答遅れがなくなり、混合湯量変
更時の偏差ΔTが低減されている。また、その混合湯量
変更時の混合湯温が設定温度に収束する時間も短縮され
ている。
FIG. 3 shows a hot water amount setting signal 27 when the mixed hot water amount is changed.
The biasing amount of the mixing valve 18 is set in accordance with the signal from the controller and the mixing valve 18 is driven.
The response delay until T is detected is eliminated, and the deviation ΔT at the time of changing the mixed hot water amount is reduced. In addition, the time during which the mixed hot water temperature at the time of changing the mixed hot water amount converges to the set temperature is also reduced.

【0034】流量変更が選択され、湯量設定手段27か
ら流量変更時付勢量設定手段31へ信号が入力される
と、偏差記憶手段33は所定の時間の偏差検出手段28
から混合湯温と設定温度Tsの偏差ΔTを入力し、その
間の最大偏差を検出する。その後、検出した最大偏差に
基づいて流量設定変更に応じた記憶偏差ΔTmを補正
し、記憶を更新する。このように偏差記憶手段33に学
習機能をもたせることによって、流量設定変更時の偏差
ΔTがより低減できるようになっている。
When the flow rate change is selected and a signal is input from the hot water amount setting means 27 to the flow rate change urging amount setting means 31, the deviation storage means 33 stores the deviation detection means 28 for a predetermined time.
, The deviation ΔT between the mixed hot water temperature and the set temperature Ts is input, and the maximum deviation between them is detected. Thereafter, based on the detected maximum deviation, the storage deviation ΔTm corresponding to the change in the flow rate setting is corrected, and the storage is updated. By providing the learning function to the deviation storage means 33, the deviation ΔT at the time of changing the flow rate setting can be further reduced.

【0035】以上述べたように本実施例によれば、湯量
設定手段27からの湯量設定変更の入力信号があった場
合、流量調節弁23の駆動を開始するとともに、入力信
号に応じた付勢量ほど混合弁18を駆動するので、偏差
ΔTを検出する遅れを防止し、混合湯量の変更すなわち
流量変更後に起きるオーバーシュートおよびアンダーシ
ュートを低減できる。特にステッピングモータ20が低
速駆動のものである場合、その効果は大である。
As described above, according to the present embodiment, when there is an input signal for changing the hot water setting from the hot water setting means 27, the drive of the flow rate control valve 23 is started and the urging according to the input signal is performed. Since the mixing valve 18 is driven by the amount, the delay in detecting the deviation ΔT can be prevented, and the overshoot and undershoot occurring after the change of the mixed hot water amount, that is, the flow rate change can be reduced. In particular, when the stepping motor 20 is driven at a low speed, the effect is great.

【0036】また、湯量設定手段27からの湯量設定変
更の入力信号があった場合、流量調節弁22の駆動を開
始するとともに、湯量設定手段27からの入力信号に応
じて記憶されている記憶偏差ΔTmに基づいて混合弁1
8の付勢量を決定し、混合弁18を駆動するので、どの
ような条件下において使用されても混合湯量の変更すな
わち湯量変更後に起きるオーバーシュートおよびアンダ
ーシュートを低減できる。加えて、湯量設定を変更する
毎に所定の時間の偏差検出手段28から偏差ΔTを入力
し、その間の最大偏差に基づいて記憶偏差ΔTmを補
正、更新しているので、流量変更後に起きるオーバーシ
ュートおよびアンダーシュートが使用する毎に低減され
るとともに、使用条件等の変化が起こってもオーバーシ
ュートおよびアンダーシュートを低減することができ
る。
When there is an input signal for changing the hot water setting from the hot water setting means 27, the drive of the flow rate control valve 22 is started, and the stored deviation stored in accordance with the input signal from the hot water setting means 27. Mixing valve 1 based on ΔTm
Since the energizing amount of No. 8 is determined and the mixing valve 18 is driven, the overshoot and undershoot occurring after the change of the mixed hot water amount, that is, after the change of the hot water amount, can be reduced under any conditions. In addition, every time the hot water amount setting is changed, the deviation ΔT is input from the deviation detecting means 28 for a predetermined time, and the stored deviation ΔTm is corrected and updated based on the maximum deviation during that time. And undershoots are reduced each time they are used, and overshoots and undershoots can be reduced even when the use conditions and the like change.

【0037】さらに、記憶偏差選択手段34により記憶
偏差ΔTmの絶対値が使用者の感じない偏差範囲として
設定された設定偏差範囲ΔT0以下であるか判定された
場合、記憶偏差選択手段34は流量調節時付勢量設定手
段31から混合弁制御手段30への付勢量信号出力を禁
止し、流量変更信号による混合弁18の駆動を行わない
ので、ステッピングモータ20の使用回数の低減し、そ
の寿命の延長が図れるとともに、使用電力の低減を図る
ことができる。
Further, when it is determined by the storage deviation selecting means 34 that the absolute value of the storage deviation ΔTm is equal to or smaller than the set deviation range ΔT0 set as the deviation range which the user does not feel, the storage deviation selecting means 34 adjusts the flow rate. Since the output of the biasing amount signal from the time biasing amount setting means 31 to the mixing valve control means 30 is prohibited and the mixing valve 18 is not driven by the flow rate change signal, the number of times the stepping motor 20 is used is reduced, and the life thereof is reduced. Can be extended, and the power consumption can be reduced.

【0038】加えて、設定温度選択手段35により設定
温度Tsが流量変更時において非温度設定範囲にある場
合、流量変更入力信号による混合弁18の駆動を行わな
いので、さらにステッピングモータ20の使用回数の低
減し、その寿命の延長が図れるとともに、使用電力の低
減を図ることができる。
In addition, when the set temperature Ts is within the non-temperature set range when the flow rate is changed by the set temperature selecting means 35, the mixing valve 18 is not driven by the flow rate change input signal, so that the stepping motor 20 can be used more times. , The life thereof can be extended, and the power consumption can be reduced.

【0039】また負側偏差選択手段36により記憶偏差
ΔTmが負であると判定された場合、流量変更入力信号
による混合弁18の駆動を行わないので、混合弁18を
付勢量が過剰に設定された場合のオーバーシュートが確
実に防止され、安全性の向上を図ることができる。
If the negative deviation selecting means 36 determines that the stored deviation ΔTm is negative, the mixing valve 18 is not driven by the flow rate change input signal, so that the bias amount of the mixing valve 18 is set to be excessive. In this case, overshoot is reliably prevented, and safety can be improved.

【0040】なお、本実施例においては記憶偏差ΔTm
が負のときには、流量調節時付勢量設定手段31から混
合弁制御手段30への付勢量信号出力を禁止している
が、混合弁制御手段30への付勢量を低減補正すること
によって、アンダーシュートを防止するとともに、オー
バーシュートの危険を低減することが可能である。
In this embodiment, the storage deviation ΔTm
Is negative, the output of the urging amount signal from the urging amount setting means 31 at the time of flow adjustment to the mixing valve control means 30 is prohibited. However, the urging amount to the mixing valve control means 30 is reduced and corrected. In addition, undershoot can be prevented, and the risk of overshoot can be reduced.

【0041】[0041]

【発明の効果】以上詳述したように本発明の湯水混合装
置は、湯と水の混合比を調節する混合弁と、混合弁を駆
動する混合弁駆動手段と、流量調節を行う流量調節弁
と、流量調節弁を駆動する流量調節弁駆動手段と、混合
弁駆動手段の駆動制御を行う混合弁制御手段と、流量調
節弁の駆動制御を行う流量調節弁制御手段と、混合弁の
下流側に設けられた湯温検出手段と、混合湯温を設定す
る湯温設定手段と、混合湯量を設定する湯量設定手段
と、湯温設定手段によって設定された設定温度と湯温検
出手段から検出された混合湯温の偏差を算出する偏差検
出手段と、偏差検出手段の算出した偏差に応じて混合弁
の付勢量を演算し、混合弁制御手段に出力する混合弁付
勢量設定手段と、湯量設定手段からの入力信号に応じて
流量調節弁制御手段に流量調節弁の付勢量を出力すると
ともに、混合弁の付勢量を混合弁制御手段に出力する流
量調節時付勢量設定手段から構成されているので以下の
効果を有する。
As described in detail above, the hot water mixing apparatus of the present invention has a mixing valve for adjusting the mixing ratio of hot water and water, mixing valve driving means for driving the mixing valve, and a flow control valve for controlling the flow rate. A flow control valve driving means for driving the flow control valve, a mixing valve control means for controlling the drive of the mixing valve drive means, a flow control valve control means for controlling the drive of the flow control valve, and a downstream side of the mixing valve. Detected from the hot water temperature detecting means, the hot water setting means for setting the mixed hot water temperature, the hot water setting means for setting the mixed hot water quantity, and the set temperature and hot water detecting means set by the hot water setting means. Deviation detecting means for calculating a deviation of the mixed hot water temperature, and a mixing valve urging amount setting means for calculating an energizing amount of the mixing valve in accordance with the deviation calculated by the deviation detecting means and outputting it to the mixing valve control means, In accordance with the input signal from the hot water setting means, the flow control valve control means Outputs the biasing amount of the amount adjusting valve has the following effects because it is constituted from the flow regulation during energizing amount setting means for outputting a mixing valve control means energizing amount of mixing valve.

【0042】(1)流量設定手段からの流量設定変更の
入力信号があった場合、流量調節弁の駆動を開始すると
ともに、入力信号に応じた付勢量ほど混合弁を駆動する
ので、偏差ΔTを検出する遅れを防止し、混合湯量の変
更すなわち流量変更後に起きるオーバーシュートおよび
アンダーシュートを低減できる。特に混合弁駆動手段2
0が低速駆動のものである場合、その効果は大である。
(1) When there is an input signal for changing the flow rate setting from the flow rate setting means, the drive of the flow rate control valve is started and the mixing valve is driven by the bias amount corresponding to the input signal. Can be prevented, and overshoot and undershoot occurring after a change in the amount of mixed hot water, that is, a change in the flow rate can be reduced. Especially mixing valve driving means 2
When 0 is for low-speed driving, the effect is great.

【0043】(2)流量設定手段からの流量設定変更の
入力信号があった場合、流量調節弁の駆動を開始すると
ともに、流量設定手段からの入力信号に応じて記憶され
ている記憶偏差ΔTmに基づいて混合弁の付勢量を決定
し、混合弁を駆動するので、どのような条件下において
使用されても混合湯量の変更すなわち流量変更後に起き
るオーバーシュートおよびアンダーシュートを低減でき
る。また、流量設定を変更する毎に所定の時間の偏差検
出手段から偏差ΔTを入力し、その間の最大偏差に基づ
いて記憶偏差ΔTmを補正、更新しているので、流量変
更後に起きるオーバーシュートおよびアンダーシュート
が使用する毎に低減されるとともに、使用条件等の変化
が起こってもオーバーシュートおよびアンダーシュート
を低減することができる。
(2) When there is an input signal for changing the flow rate setting from the flow rate setting means, the drive of the flow rate control valve is started, and the storage deviation ΔTm stored according to the input signal from the flow rate setting means is changed. Since the energizing amount of the mixing valve is determined based on the driving of the mixing valve, the overshoot and the undershoot occurring after the change of the mixed hot water amount, that is, the flow rate change, can be reduced regardless of the conditions used. Further, every time the flow rate setting is changed, the deviation ΔT is inputted from the deviation detecting means for a predetermined time, and the stored deviation ΔTm is corrected and updated based on the maximum deviation during the period. Each time the chute is used, it is reduced, and overshoots and undershoots can be reduced even if the use conditions change.

【0044】(3)記憶偏差選択手段により記憶偏差Δ
Tmの絶対値が使用者の感じない偏差範囲として設定さ
れた設定偏差範囲ΔT0以下であると判定された場合、
記憶偏差選択手段は流量調節時付勢量設定手段から混合
弁制御手段への付勢量信号出力を禁止し、流量変更入力
信号による混合弁の駆動を行わないので、混合弁駆動手
段の使用回数の低減し、その寿命の延長が図ることがで
きる。また、混合弁駆動手段の使用回数の低減すること
によって、使用電力の低減を図ることができる。
(3) The storage deviation Δ by the storage deviation selecting means
When it is determined that the absolute value of Tm is equal to or smaller than the set deviation range ΔT0 set as the deviation range that the user does not feel,
The memory deviation selecting means prohibits the output of the urging amount signal from the urging amount setting means at the time of flow rate adjustment to the mixing valve control means and does not drive the mixing valve by the flow rate change input signal. And the service life can be extended. Further, by reducing the number of times the mixing valve driving means is used, it is possible to reduce power consumption.

【0045】(4)設定温度選択手段により設定温度T
sが流量変更時においてオーバーシュートおよびアンダ
ーシュートの低減を必要としない非温度設定範囲にある
場合、流量変更入力信号による混合弁の駆動を行わない
ので、さらに混合弁駆動手段の使用回数を低減し、その
寿命の延長が図ることができるとともに、さらなる使用
電力の低減を実現できる。
(4) Set temperature T by set temperature selecting means
When s is in the non-temperature setting range where reduction of overshoot and undershoot is not required at the time of changing the flow rate, the mixing valve is not driven by the flow rate change input signal. In addition, the life can be extended, and the power consumption can be further reduced.

【0046】(5)負側偏差選択手段により記憶偏差Δ
Tmが負であると判定された場合、流量変更入力信号に
よる混合弁の駆動を行わないので、混合弁の付勢量が過
剰に設定された場合のオーバーシュートが確実に防止さ
れ、安全性の向上を図ることができる。
(5) The stored deviation Δ is calculated by the negative deviation selecting means.
When it is determined that Tm is negative, the mixing valve is not driven by the flow rate change input signal, so that the overshoot when the energizing amount of the mixing valve is set excessively is reliably prevented, and safety is improved. Improvement can be achieved.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例を示す湯水混合装置の構成図FIG. 1 is a configuration diagram of a hot water mixing apparatus showing an embodiment of the present invention.

【図2】同湯水混合装置の流量設定変更時制御動作のフ
ローチャート
FIG. 2 is a flowchart of a control operation when changing the flow rate setting of the hot and cold water mixing apparatus.

【図3】同湯水混合装置による出湯結果を示す図FIG. 3 is a view showing a tapping result by the hot water mixing apparatus.

【図4】従来の湯水混合装置による出湯結果を示す図FIG. 4 is a view showing a result of tapping by a conventional hot water mixing apparatus.

【図5】従来の湯水混合装置による出湯結果を示す図FIG. 5 is a view showing a result of tapping by a conventional hot water mixing apparatus.

【図6】従来の湯水混合装置の構成図FIG. 6 is a configuration diagram of a conventional hot water mixing apparatus.

【符号の説明】[Explanation of symbols]

18 混合弁 20 ステッピングモータ(混合弁駆動手段) 21 湯温検出手段 22 流量調節弁 23 ステッピングモータ(流量調節弁駆動手段) 26 湯温設定手段 27 湯量設定手段 28 偏差検出手段 29 混合弁付勢量設定手段 30 混合弁制御手段 31 流量調節時付勢量設定手段 32 流量調節弁制御手段 33 偏差記憶手段 34 記憶偏差選択手段 35 設定温度選択手段 36 負側偏差選択手段 Reference Signs List 18 mixing valve 20 stepping motor (mixing valve driving means) 21 hot water temperature detecting means 22 flow rate control valve 23 stepping motor (flow rate controlling valve driving means) 26 hot water temperature setting means 27 hot water quantity setting means 28 deviation detecting means 29 mixing valve biasing amount Setting means 30 Mixing valve control means 31 Flow rate adjustment bias amount setting means 32 Flow control valve control means 33 Deviation storage means 34 Storage deviation selection means 35 Set temperature selection means 36 Negative side deviation selection means

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) F24D 17/00 F24H 9/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) F24D 17/00 F24H 9/00

Claims (5)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】湯と水の混合比を調節する混合弁と、前記
混合弁を駆動する混合弁駆動手段と、流量調節を行う流
量調節弁と、前記流量調節弁を駆動する流量調節弁駆動
手段と、前記混合弁駆動手段の駆動制御を行う混合弁制
御手段と、前記流量調節弁の駆動制御を行う流量調節弁
制御手段と、前記混合弁の下流側に設けられた湯温検出
手段と、混合湯温を設定する湯温設定手段と、混合湯量
を設定する湯量設定手段と、前記湯温設定手段によって
設定された設定温度と前記湯温検出手段から検出された
混合湯温の偏差を算出する偏差検出手段と、前記偏差検
出手段の算出した偏差に応じて前記混合弁の付勢量を演
算し、前記混合弁制御手段に出力する混合弁付勢量設定
手段と、前記湯量設定手段からの入力信号に応じて、前
記流量調節弁制御手段に前記流量調節弁の付勢量を出力
するとともに、前記混合弁の付勢量を前記混合弁制御手
段に出力する流量調節時付勢量設定手段とを備えた湯水
混合装置。
1. A mixing valve for adjusting a mixing ratio of hot water and water, mixing valve driving means for driving the mixing valve, a flow control valve for controlling a flow rate, and a flow control valve driving for driving the flow control valve Means, a mixing valve control means for controlling the driving of the mixing valve driving means, a flow rate control valve controlling means for controlling the driving of the flow rate regulating valve, and a hot water temperature detecting means provided on the downstream side of the mixing valve. Hot water setting means for setting the mixed hot water temperature, hot water setting means for setting the mixed hot water quantity, and a difference between the set temperature set by the hot water setting means and the mixed hot water temperature detected by the hot water temperature detecting means. Deviation calculating means for calculating, an energizing amount of the mixing valve calculated in accordance with the deviation calculated by the deviation detecting means, and an energizing amount setting means for mixing valve for outputting to the mixing valve controlling means; The flow control valve control according to an input signal from Outputs the biasing amount of the flow control valve in stage, hot and cold water mixing device which includes a flow regulation during energizing amount setting means for outputting to the mixing valve control means energizing amount of the mixing valve.
【請求項2】前記湯量設定手段からの入力信号によって
前記流量調節時付勢量設定手段を介して、前記混合弁お
よび前記流量調節弁の弁開度が調節された場合に、所定
の時間内に前記偏差検出手段から検出された最大偏差と
前記湯温設定手段からの入力信号を補正または記憶する
偏差記憶手段と、前記湯温設定手段からの入力信号に応
じた記憶偏差を前記偏差記憶手段から入力し、前記混合
弁の付勢量を演算、設定、出力する流量調節時付勢量設
定手段を設けた請求項1記載の湯水混合装置。
2. When a valve opening of the mixing valve and the flow rate control valve is adjusted via the flow rate adjustment amount setting means by an input signal from the hot water quantity setting means, a predetermined time is required. Deviation storage means for correcting or storing the maximum deviation detected by the deviation detection means and the input signal from the hot water temperature setting means; and storing the storage deviation according to the input signal from the hot water temperature setting means in the deviation storage means. 2. The hot and cold water mixing apparatus according to claim 1, further comprising a flow rate control biasing amount setting means for calculating, setting, and outputting the biasing amount of the mixing valve.
【請求項3】偏差記憶手段に記憶された偏差が所定の値
よりも小さい場合に流量調節時付勢量設定手段から混合
弁制御手段への出力を禁止する記憶偏差選択手段を設け
た請求項2記載の湯水混合装置。
3. A storage deviation selecting means for prohibiting an output from the flow rate adjustment energizing amount setting means to the mixing valve control means when the deviation stored in the deviation storage means is smaller than a predetermined value. 3. The hot and cold water mixing device according to 2.
【請求項4】湯温設定手段により設定された設定湯温が
非設定温度領域にある場合、流量調節時付勢量設定手段
から混合弁制御手段への出力を禁止する設定温度選択手
段を設けた請求項2または請求項3記載の湯水混合装
置。
4. A set temperature selecting means for inhibiting output from the urging amount setting means at the time of flow rate adjustment to the mixing valve control means when the set hot water temperature set by the hot water temperature setting means is in the non-set temperature range. The hot and cold water mixing apparatus according to claim 2 or 3.
【請求項5】偏差記憶手段に記憶された偏差が負である
場合、流量調節時付勢量設定手段から混合弁制御手段へ
の出力を禁止する負側偏差選択手段を設けた請求項2ま
たは請求項3または請求項4記載の湯水混合装置。
5. A negative deviation selecting means for prohibiting an output from the flow rate adjusting bias amount setting means to the mixing valve control means when the deviation stored in the deviation storage means is negative. The hot and cold water mixing device according to claim 3 or 4.
JP25813594A 1994-10-24 1994-10-24 Hot water mixing equipment Expired - Fee Related JP2962164B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25813594A JP2962164B2 (en) 1994-10-24 1994-10-24 Hot water mixing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25813594A JP2962164B2 (en) 1994-10-24 1994-10-24 Hot water mixing equipment

Publications (2)

Publication Number Publication Date
JPH08121794A JPH08121794A (en) 1996-05-17
JP2962164B2 true JP2962164B2 (en) 1999-10-12

Family

ID=17316007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25813594A Expired - Fee Related JP2962164B2 (en) 1994-10-24 1994-10-24 Hot water mixing equipment

Country Status (1)

Country Link
JP (1) JP2962164B2 (en)

Also Published As

Publication number Publication date
JPH08121794A (en) 1996-05-17

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