JPH0257781A - Hot and cold water mixing device - Google Patents
Hot and cold water mixing deviceInfo
- Publication number
- JPH0257781A JPH0257781A JP20512388A JP20512388A JPH0257781A JP H0257781 A JPH0257781 A JP H0257781A JP 20512388 A JP20512388 A JP 20512388A JP 20512388 A JP20512388 A JP 20512388A JP H0257781 A JPH0257781 A JP H0257781A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- mixing
- temperature
- control valve
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000007423 decrease Effects 0.000 abstract description 7
- 230000003247 decreasing effect Effects 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
Landscapes
- Temperature-Responsive Valves (AREA)
- Control Of Temperature (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、湯水混合装置の湯温制御に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to hot water temperature control in a hot water mixing device.
従来の技術
従来の湯水混合装置のブロック図を第５図に示す。（例
えば、実開昭６１−１８４２４号公報）第５図において
ｌ・は水供給配管、２は高温湯供給配管、３は混合湯出
口である。４は水側弁で、５は湯側弁である。６はサー
ミスタで混合湯温を検出し、湯温信号を制御装置７に通
知する。８は第１の駆動手段で制御装置７の信号により
水側弁４を駆動する。９は第２の駆動手段で制御装置７
の信号により湯側弁５を駆動する。１０はコントローラ
で制御装置７に連結され、給湯湯温を設定するためのも
ので、設定された温度は制御装置７にインプットされる
。制御装置７は、前記サーミスタ６で検出した混合湯温
信号とコントローラ８で設定した設定温度信号より、こ
れらの温度差に基づいて水側弁４と湯側弁５を操作する
信号を前記第１の駆動手段と前記第２の駆動手段に出力
し混合水の温度を調節する。2. Description of the Related Art A block diagram of a conventional hot water mixing device is shown in FIG. (For example, Japanese Utility Model Application No. 61-18424) In FIG. 5, 1 is a water supply pipe, 2 is a hot water supply pipe, and 3 is a mixed water outlet. 4 is a water side valve, and 5 is a hot water side valve. A thermistor 6 detects the mixed water temperature and notifies the control device 7 of the water temperature signal. A first driving means 8 drives the water side valve 4 in response to a signal from the control device 7. 9 is a second driving means and a control device 7
The hot water side valve 5 is driven by the signal. A controller 10 is connected to the control device 7 and is used to set the temperature of hot water, and the set temperature is input to the control device 7. Based on the mixed water temperature signal detected by the thermistor 6 and the set temperature signal set by the controller 8, the control device 7 generates a signal for operating the water side valve 4 and the hot water side valve 5 based on the temperature difference between them. and the second driving means to adjust the temperature of the mixed water.
発明が解決しようとする課題
しかしながら前述の構成では、水側弁と湯側弁を直接駆
動するため第１の駆動手段と第２の駆動手段には駆動力
の大きいアクチュエータを使用しなければならず、構成
が大型になる。本発明は簡単な構成で湯温の安定性の良
好な混合装置を提供するものである。Problems to be Solved by the Invention However, in the above configuration, actuators with large driving force must be used for the first driving means and the second driving means to directly drive the water side valve and the hot water side valve. , the configuration becomes large. The present invention provides a mixing device with a simple configuration and good stability of hot water temperature.
課題を解決するための手段
上記課題を解決するために本発明の湯水混合装置は、水
通路と湯通路にそれぞれ設けられた混合弁と、少なくと
も一方の前記混合弁とケーシングでそれぞれ形成される
背圧室と、前記混合弁とケーシングの間で形成される第
１の連通路と、水通路と湯通路との混合路と、前記混合
路の混合湯温を検出する混合湯温検出手段と、前記背圧
室と前記混合路とをそれぞれ連絡する第２の連通路と、
前記連通路に設ける制御弁と、前記制御弁を駆動する制
御弁駆動手段と、前記混合湯温検出手段の信号によって
前記制御弁駆動手段に駆動信号を出力する制御手段とか
らなる構成を備えたものである。Means for Solving the Problems In order to solve the above problems, the hot water mixing device of the present invention includes mixing valves provided in each of the water passage and the hot water passage, and a backing formed by at least one of the mixing valves and a casing. a pressure chamber, a first communication passage formed between the mixing valve and the casing, a mixing passage of a water passage and a hot water passage, a mixed hot water temperature detection means for detecting the temperature of mixed hot water in the mixing passage; a second communication path that connects the back pressure chamber and the mixing path, respectively;
A control valve provided in the communication passage, a control valve drive means for driving the control valve, and a control means for outputting a drive signal to the control valve drive means based on a signal from the mixed hot water temperature detection means. It is something.
作用
本発明の湯水混合装置は上記の構成によって、混合路の
温度を混合湯温検出手段によって検出し、その信号に応
じて制御手段が制御弁駆動手段を駆動する。そして第２
の連通路に設けられた制御弁が操作され、制御弁の弁位
置により背圧室の圧力を調節し混合弁が動作し混合湯温
を制御するものである。Operation: With the above-described configuration, the hot water mixing device of the present invention detects the temperature of the mixing path by the mixed hot water temperature detection means, and the control means drives the control valve driving means in accordance with the signal. and the second
A control valve provided in the communication passage is operated, and the pressure in the back pressure chamber is adjusted according to the valve position of the control valve, and the mixing valve is operated to control the temperature of the mixed water.
実施例
以下、本発明の一実施例を図面を用いて説明する。第１
図は本発明の湯水混合装置の断面図である。１１は水通
路、１２は湯通路、１３は混合弁である。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
The figure is a sectional view of the hot water mixing device of the present invention. 11 is a water passage, 12 is a hot water passage, and 13 is a mixing valve.
１３ａは水側弁体、１３ｂは湯側弁体である。１４は混
合弁１３とケーシングで形成される背圧室１４ａは水側
背圧室、１４ｂは湯側背圧室で、１５は混合弁１３とケ
ーシングの間で形成される第１の連通路である。１６は
水道路１１と湯通路１２の混合路で、１７は混合路１６
の混合湯温を検出する混合湯温検出手段である。１８は
背圧室１４と混合路１６を連絡する第２の連通路１８ａ
は水側の第２の連通路、１８ｂは湯側の第２の連通路で
、１９は連通路に設ける制御弁である。２０は制御弁１
９を駆動する制御弁駆動手段で、２１は混合湯温検出手
段１７の信号によって制御弁駆動手段に駆動信号を出力
を制御手段である。13a is a water side valve body, and 13b is a hot water side valve body. 14 is a back pressure chamber formed by the mixing valve 13 and the casing, 14a is a water side back pressure chamber, 14b is a hot water side back pressure chamber, and 15 is a first communication path formed between the mixing valve 13 and the casing. be. 16 is a mixed road of water road 11 and hot water path 12, 17 is a mixed road 16
This is a mixed water temperature detection means for detecting the mixed water temperature. 18 is a second communication passage 18a that communicates the back pressure chamber 14 and the mixing passage 16;
18b is a second communication passage on the water side, 18b is a second communication passage on the hot water side, and 19 is a control valve provided in the communication passage. 20 is control valve 1
9 is a control valve driving means, and 21 is a control means for outputting a driving signal to the control valve driving means in response to a signal from the mixed hot water temperature detecting means 17.
第２図は制御弁１９部分の拡大図である。第３図は制御
弁の一例である。FIG. 2 is an enlarged view of the control valve 19 portion. FIG. 3 is an example of a control valve.
第４図は制御弁１９の弁位置における混合湯温の変化を
示す第４図の制御弁位置において制御弁の左側が水側の
第２の連通路１８ａで、制御弁の右側が湯側の第２の連
通路１８ｂである。FIG. 4 shows the change in mixed water temperature depending on the valve position of the control valve 19. In the control valve position shown in FIG. This is the second communication path 18b.
次に本発明の構成の動作を説明する。混合路１６におけ
る混合湯温は混合湯温検出手段１７によって検出される
。制御手段２１は設定温度と、この混合湯温を比較し混
合湯温か設定湯温に等しくなるように制御弁１９を動か
すよう制御弁駆動手段に信号を出力する。Next, the operation of the configuration of the present invention will be explained. The mixed water temperature in the mixing path 16 is detected by a mixed water temperature detection means 17. The control means 21 compares the set temperature with this mixed hot water temperature and outputs a signal to the control valve driving means to move the control valve 19 so that the mixed hot water temperature becomes equal to the set hot water temperature.
一例として設定温度に対して混合湯温か高い場合につい
て説明する。混合湯温検出手段１７からの信号により制
御手段２１は現在の混合湯温が設定湯温より高いことを
判断する。したがって制御手段２１は混合湯温を下げる
ためには水量を増加して湯量を減少するように制御弁駆
動手段に信号を出力する。水量を増加するためには制御
弁１９の切りこみのある方を第４図において２もしくは
１になるようにする。制御弁１９の切りこみのある方が
水側の第２の連通路１８ａ向いている場合、水側の第２
の連通路１８ａを流れる水量が増加し、湯側の第２の連
通路１８．ｂを流れる水量が減少する。As an example, a case where the mixed water temperature is higher than the set temperature will be explained. Based on the signal from the mixed water temperature detection means 17, the control means 21 determines that the current mixed water temperature is higher than the set water temperature. Therefore, the control means 21 outputs a signal to the control valve driving means to increase the amount of water and decrease the amount of hot water in order to lower the mixed hot water temperature. In order to increase the amount of water, the notched side of the control valve 19 should be set to 2 or 1 in FIG. If the notched side of the control valve 19 faces the second communication path 18a on the water side, the second communication path 18a on the water side
The amount of water flowing through the communication path 18a on the hot water side increases, and the amount of water flowing through the second communication path 18a on the hot water side increases. The amount of water flowing through b decreases.
このため水側背圧室１４ａの圧力が下がり、反射に湯側
背圧室１４ｂの圧力が増加する。この圧力差は弁体１３
ａ、１３ｂおよび混合弁１３に加わり、混合弁１３は圧
力差を無くす方向（この場合は第１図において左側）に
動り、シたがって水道路１１から混合路１６に通ずる混
合弁開度が大きくなり水量が増加する。反対に湯量は減
少し、混合路の混合湯温は低下して設定温度゛に近づく
。Therefore, the pressure in the water side back pressure chamber 14a decreases, and the pressure in the hot water side back pressure chamber 14b increases as a reflection. This pressure difference is caused by the valve body 13
a, 13b and the mixing valve 13, the mixing valve 13 moves in the direction to eliminate the pressure difference (in this case, to the left in FIG. It gets bigger and the amount of water increases. On the contrary, the amount of hot water decreases, and the temperature of the mixed hot water in the mixing path decreases and approaches the set temperature.
発明の効果
以上のように、本発明の湯水混合装置は、第２の連通路
に設けた制御弁を駆動することにより混合弁を直接駆動
せずに湯温制御が可能となる。Effects of the Invention As described above, the hot water mixing device of the present invention enables hot water temperature control by driving the control valve provided in the second communication path without directly driving the mixing valve.
制御弁は混合弁に比べ面積が小さいため弁にかかる圧力
も小さくなる。このため制御弁駆動手段として小型のア
クチュエータを用いることが可能となり装置全体の小型
化を図る効果が得られる。Since the control valve has a smaller area than the mixing valve, the pressure applied to the valve is also smaller. Therefore, it is possible to use a small-sized actuator as the control valve driving means, and it is possible to achieve the effect of downsizing the entire device.
さらに、制御弁の負荷が小さいため高速で駆動すること
ができ、その結果混合弁の応答が早く混合湯温の安定性
が良くなる効果が得られる。Furthermore, since the load on the control valve is small, it can be driven at high speed, and as a result, the response of the mixing valve is quick and the stability of the mixed water temperature is improved.
第１図は、本発明の一実施例を示す湯水混合装置の断面
図、第２図は同装置の制御弁部分の拡大断面図、第３図
は同装置の制御弁の斜視図、第４図は同装置の制御弁の
動きを示す形態図、第５図は従来の湯水混合装置のブロ
ック図である。
１１・・・・・・水通路、１２・・・・・・湯通路、１
３・・・・・・混合弁、１４・・・・・・背圧室、１５
・・・・・・第１の連通路、１６・・・・・・混合路、
１７・・・・・・混合湯温検出手段、１８・・・・・・
第２の連通路、１９・・・・・・制御弁、２０・・・・
・・制御弁駆動手段、２１・・・・・・制御手段。
代理人の氏名 弁理士 粟野重孝 はか１各県
図
Ｉノ −一一水 這麻FIG. 1 is a sectional view of a hot water mixing device showing one embodiment of the present invention, FIG. 2 is an enlarged sectional view of the control valve portion of the device, FIG. 3 is a perspective view of the control valve of the device, and FIG. The figure is a configuration diagram showing the movement of the control valve of the device, and FIG. 5 is a block diagram of a conventional hot water mixing device. 11...Water passage, 12...Hot water passage, 1
3... Mixing valve, 14... Back pressure chamber, 15
......first communication path, 16...mixing path,
17...Mixed water temperature detection means, 18...
Second communication path, 19... control valve, 20...
... Control valve drive means, 21... Control means. Name of agent: Patent attorney Shigetaka Awano Haka 1 Prefectural map I-11 Mizu Hirama
Claims (1)
合弁と、少なくとも一方の前記弁体とケーシングでそれ
ぞれ形成される背圧室と、前記弁体とケーシングの間で
形成される第１の連通路と、水通路との混合路と、前記
混合路の混合湯温を検出する混合湯温検出手段と、前記
背圧室と前記混合路とをそれぞれ連絡する第２の連通路
と、前記連通路に設ける制御弁と、前記制御弁を駆動す
る制御弁駆動手段と、前記混合湯温検出手段の信号によ
って前記制御弁駆動手段に駆動信号を出力する制御手段
とからなる湯水混合装置。A mixing valve consisting of a valve body provided in a water passage and a hot water passage, respectively, a back pressure chamber formed by at least one of the valve bodies and a casing, and a first valve body formed between the valve body and the casing. a communication path, a mixing path with a water path, a mixing water temperature detection means for detecting the temperature of the mixed water in the mixing path, and a second communication path connecting the back pressure chamber and the mixing path, respectively; A hot water mixing device comprising: a control valve provided in the communication passage; a control valve drive means for driving the control valve; and a control means for outputting a drive signal to the control valve drive means based on a signal from the mixed water temperature detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20512388A JPH0257781A (en) | 1988-08-18 | 1988-08-18 | Hot and cold water mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20512388A JPH0257781A (en) | 1988-08-18 | 1988-08-18 | Hot and cold water mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0257781A true JPH0257781A (en) | 1990-02-27 |
Family
ID=16501807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20512388A Pending JPH0257781A (en) | 1988-08-18 | 1988-08-18 | Hot and cold water mixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0257781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5147185A (en) * | 1990-05-14 | 1992-09-15 | Qed Environmental Systems, Inc. | Pump apparatus for fluid sampling and collection, and the like |
-
1988
- 1988-08-18 JP JP20512388A patent/JPH0257781A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5147185A (en) * | 1990-05-14 | 1992-09-15 | Qed Environmental Systems, Inc. | Pump apparatus for fluid sampling and collection, and the like |
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