JPH07139810A - Hot water supply control equipment - Google Patents
Hot water supply control equipmentInfo
- Publication number
- JPH07139810A JPH07139810A JP5287951A JP28795193A JPH07139810A JP H07139810 A JPH07139810 A JP H07139810A JP 5287951 A JP5287951 A JP 5287951A JP 28795193 A JP28795193 A JP 28795193A JP H07139810 A JPH07139810 A JP H07139810A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- bypass
- detecting means
- operating force
- heat exchanger
- 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 93
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、給湯装置の水量を調節
する瞬間式給湯装置の給湯制御に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to hot water supply control of an instantaneous hot water supply device for adjusting the amount of water in the hot water supply device.
【０００２】[0002]
【従来の技術】従来のこの種の給湯制御装置は、図４に
示すように、熱交換器１を備えた加熱路２と、熱交換器
１を迂回するバイパス路３と、バイパス路３に分流調節
弁４および逆止弁６を設け、分流調節弁４の開度を制御
することにより、加熱路２からの湯とバイパス路３から
の水との混合度合いを変更して混合温度を所定の温度に
して出湯していた。また、給湯機への総水量を調節する
ために水量弁を用いて加熱能力以上の通水量を規制する
ことも行われており、この分流調節弁４や水量弁はモー
タ５により弁体を駆動する構成が一般に用いられてい
る。2. Description of the Related Art As shown in FIG. 4, a conventional hot water supply control device includes a heating passage 2 having a heat exchanger 1, a bypass passage 3 bypassing the heat exchanger 1, and a bypass passage 3. By providing the diversion control valve 4 and the check valve 6 and controlling the opening degree of the diversion control valve 4, the degree of mixing of the hot water from the heating passage 2 and the water from the bypass passage 3 is changed to set a predetermined mixing temperature. It was hot water at the temperature of. In addition, in order to adjust the total amount of water to the water heater, the water flow rate is regulated by using a water flow valve, and the flow control valve 4 and the water flow valve drive a valve body by a motor 5. The configuration is generally used.
【０００３】また水量制御弁としてソレノイドに通電す
ることによって弁体を開き、バイパス路の流量を制御す
ることも行われている。As a water quantity control valve, a solenoid is energized to open the valve body to control the flow rate in the bypass passage.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の給湯制御装置のモータ弁装置では速度が遅く湯温の
制御性能が悪く高温の湯が供給されることがあり、また
モータ弁の故障や停電によってモータが停止した場合高
温が供給される場合があった。またソレノイド式では速
度は速く制御性能は良好であるが、故障や停電時にバイ
パス弁が閉じる方向に動作するので高温の湯が供給され
ることがあった。However, in the motor valve device of the above-described conventional hot water supply control device, the speed is slow and the hot water temperature control performance is poor, and hot water may be supplied. Due to this, high temperature could be supplied when the motor stopped. In addition, the solenoid type has a high speed and good controllability, but hot water may be supplied because the bypass valve operates in the closing direction in the event of a failure or power failure.
【０００５】本発明は上記課題を解決するもので、安定
した湯温に制御するとともに故障や停電の際にも安全を
保証する給湯装置を提供することを目的としている。The present invention has been made to solve the above problems, and an object of the present invention is to provide a hot water supply apparatus which controls the stable hot water temperature and guarantees safety in the event of a failure or power failure.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に本発明の給湯制御装置は、以下の構成とした。 （１）熱交換器と、前記熱交換器を迂回するバイパス路
と、前記バイパス路に設けられたバイパス弁と、前記バ
イパス路と前記熱交換器の混合部に設けられた出湯温度
検出手段と、前記バイパス弁を閉方向に駆動する操作力
発生手段と、前記操作力発生手段が不動作時に前記バイ
パス弁を開く付勢手段と、前記出湯温度検出手段の信号
によって前記操作力発生手段を制御する制御器を備えた
ものである。 （２）混合部に設けられた出湯温度検出手段とは別に熱
交換器の下流もしくは前記混合部の下流に第２出湯温度
検出手段を設け、前記第２出湯温度検出手段の信号によ
って操作力発生手段を停止させる制御器とは別の第２制
御器を備えたものである。In order to achieve the above object, the hot water supply control device of the present invention has the following configuration. (1) A heat exchanger, a bypass path bypassing the heat exchanger, a bypass valve provided in the bypass path, and an outlet heated water temperature detection means provided in a mixing section of the bypass path and the heat exchanger. , Operating force generating means for driving the bypass valve in a closing direction, biasing means for opening the bypass valve when the operating force generating means is inoperative, and controlling the operating force generating means by a signal from the hot water temperature detecting means It is equipped with a controller to operate. (2) In addition to the outlet heated water temperature detecting means provided in the mixing section, a second outlet heated water temperature detecting means is provided downstream of the heat exchanger or downstream of the mixing portion, and an operating force is generated by a signal from the second outlet heated water temperature detecting means. A second controller other than the controller for stopping the means is provided.
【０００７】[0007]
【作用】本発明は上記構成によって、通常は操作力発生
手段でバイパス弁を調節して湯温を制御し、停電などの
時にはバイパス弁を直ちに開状態にするものである。According to the present invention, with the above construction, the bypass valve is normally adjusted by the operating force generating means to control the hot water temperature, and the bypass valve is immediately opened in the event of a power failure or the like.
【０００８】[0008]
【実施例】以下、本発明の請求項１に対応する一実施例
を図面にもとづいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment corresponding to claim 1 of the present invention will be described below with reference to the drawings.
【０００９】図１において、熱交換器１０を介して入水
路１１と加熱路１２が直列に接続され、通水は入水路１
１、熱交換器１０、加熱路１２の順に流れる。熱交換器
１１を迂回するバイパス路１３は、入水路１１の分岐点
１４と加熱路１２先端の合流点１５に接続され、合流点
１５で加熱路１２とバイパス路１３の流れが合流し、出
湯路１６へと流れる。１７はバイパス路１３の中間に設
けたバイパス弁で、開閉信号によりバイパス路の通路を
開度を調節する。１８は合流点１５の下流に設けた出湯
温度検出手段で、サーミスタ等のセンサによりなり、加
熱路１２とバイパス路１３との混合温度を検知する。１
９は加熱路１２に設けた加熱検知手段で熱交換器１０の
出口温度を検知する。２０は分岐点１４の上流に設けた
給水検知手段で、給水温度を検知する。２１は入水路１
１に設けた水量検知手段で、熱交換器１０への水量を検
知する。２２は出湯路１６から出湯される出湯温度を使
用者が任意に設定する温度設定手段、２３は制御器であ
り、出湯温度検出手段１８と加熱検知手段１９と給水検
知手段２０と水量検知手段２１の各検出値に応じてバイ
パス弁１７の開度制御を操作力発生手段２４によって行
い、また加熱検知手段１９と予め定めた設定温度との出
力偏差に応じて偏差がゼロになるようバーナ２５への燃
料量を比例弁２６の開度により制御する。In FIG. 1, a water inlet 11 and a heating passage 12 are connected in series via a heat exchanger 10, and water is passed through the water inlet 1
1, the heat exchanger 10, and the heating path 12 flow in this order. The bypass path 13 that bypasses the heat exchanger 11 is connected to the branch point 14 of the water inlet path 11 and the confluence point 15 at the tip of the heating path 12, and the flow of the heating path 12 and the bypass path 13 merges at the confluence point 15 to discharge the hot water. Flows to road 16. Reference numeral 17 denotes a bypass valve provided in the middle of the bypass passage 13 for adjusting the opening of the passage of the bypass passage by an opening / closing signal. Denoted at 18 is a hot water outlet temperature detecting means provided downstream of the confluence point 15, which is composed of a sensor such as a thermistor and detects the mixed temperature of the heating passage 12 and the bypass passage 13. 1
Reference numeral 9 is a heating detection means provided in the heating passage 12 to detect the outlet temperature of the heat exchanger 10. Reference numeral 20 denotes a water supply detecting means provided upstream of the branch point 14 to detect the water supply temperature. 21 is the inlet channel 1
The water amount detecting means provided in No. 1 detects the amount of water to the heat exchanger 10. Reference numeral 22 is a temperature setting means for allowing the user to arbitrarily set the temperature of the hot water discharged from the hot water discharge path 16, 23 is a controller, and the hot water temperature detecting means 18, the heating detecting means 19, the water supply detecting means 20, and the water amount detecting means 21 The opening degree of the bypass valve 17 is controlled by the operating force generating means 24 in accordance with each detected value of the above, and the burner 25 is controlled so that the deviation becomes zero in accordance with the output deviation between the heating detecting means 19 and the preset temperature. The amount of fuel is controlled by the opening of the proportional valve 26.
【００１０】バイパス弁１７と操作力発生手段２４につ
いて図２にもとづいて説明する。バイパス弁１７には、
ボディ２７に流入口２８と流出口２９があり、弁口２７
ａと弁体３０で弁を形成する。この弁口２７ａとほぼ同
じ有効受圧面積を有するダイヤフラム３１と、弁体３０
に設けられた連通孔３０ａで弁体３０に作用する流体の
力をバランスしている。操作力発生手段２４はコイル３
２に発生した磁気を、ヨーク３３と３４、鉄心３５、磁
性体３６で構成される磁気回路により弁体３０と一体の
磁性体３６を吸引し、常時弁体３０を開方向に付勢して
いる付勢手段３７の力に抗して弁体３０の開度をコイル
３２の電流値によって制御する。３８は隔壁体で水を密
封する。The bypass valve 17 and the operating force generating means 24 will be described with reference to FIG. Bypass valve 17 has
The body 27 has an inflow port 28 and an outflow port 29.
A valve is formed by a and the valve body 30. A diaphragm 31 having an effective pressure receiving area substantially the same as that of the valve opening 27a, and a valve body 30.
The force of the fluid acting on the valve element 30 is balanced by the communication hole 30a provided in the. The operating force generating means 24 is the coil 3
The magnetism generated in 2 is attracted to the magnetic body 36 integrated with the valve body 30 by the magnetic circuit composed of the yokes 33 and 34, the iron core 35, and the magnetic body 36, and constantly urges the valve body 30 in the opening direction. The opening of the valve body 30 is controlled by the current value of the coil 32 against the force of the biasing means 37. 38 is a partition wall for sealing water.
【００１１】次に動作について説明する。制御器２３は
設定手段２０と出湯温度検出手段１８との信号を比較
し、その偏差に応じて操作力発生手段２４のコイル３２
の電流を調節する。例えば設定温度より出湯温度が高け
ればコイル電流を増加させ弁体３０を開きバイパス路１
３の水量を多くして出湯湯温を下げる。設定温度と出湯
温度がほぼ等しくなるとコイル電流は一定値を保ち、弁
体３０はその位置を変えない。このようにして出湯温度
検出手段１８の信号に応じて湯温は制御されるが、操作
力発生手段２４が故障して動かなかったり、停電した場
合には図２に示す付勢手段３７によって弁体３０は直ち
に押し下げられ全開になる。その結果バイパス水量が多
くなり湯温は低下する。Next, the operation will be described. The controller 23 compares the signals of the setting means 20 and the hot water outlet temperature detecting means 18, and according to the deviation, the coil 32 of the operating force generating means 24.
Adjust the current of. For example, if the hot water temperature is higher than the set temperature, the coil current is increased to open the valve body 30 and bypass path 1
Increase the amount of water in 3 to lower the hot water temperature. When the set temperature and the hot water temperature are substantially equal to each other, the coil current maintains a constant value and the valve body 30 does not change its position. In this way, the hot water temperature is controlled in accordance with the signal from the hot water outlet temperature detecting means 18, but when the operating force generating means 24 fails to move or fails in power, the urging means 37 shown in FIG. The body 30 is immediately pushed down and fully opened. As a result, the amount of bypass water increases and the hot water temperature drops.
【００１２】図３は請求項２に対応する一実施例であ
り、出湯路１６に出湯温度検出手段１８とは別の第２出
湯温度検出手段を設け、この第２出湯温度検出手段の信
号によって制御器２３とは別の制御器４０で操作力発生
手段２４を制御する。通常は出湯温度検出手段１８の信
号で制御器２３で操作力発生手段１８を制御している
が、出湯温度が異常に高温になったときは第２出湯温度
検出手段４０の信号により制御器４０で操作力発生手段
２４を遮断し、前述のように弁体３０を緊急に全開にす
る。FIG. 3 shows an embodiment corresponding to claim 2, in which a tapping water passage 16 is provided with a second tapping temperature detecting means other than the tapping temperature detecting means 18, and a signal from the second tapping temperature detecting means is provided. The controller 40, which is different from the controller 23, controls the operating force generation means 24. Normally, the controller 23 controls the operating force generating means 18 by the signal from the hot water outlet temperature detecting means 18, but when the hot water outlet temperature becomes abnormally high, the controller 40 is sent by the signal from the second hot water outlet temperature detecting means 40. The operating force generating means 24 is shut off by the above, and the valve body 30 is urgently fully opened as described above.
【００１３】いずれの場合も給湯を停止してから所定時
間後には操作力発生手段２４は停止して弁体３０は全開
になる。In any case, the operating force generating means 24 is stopped and the valve body 30 is fully opened after a lapse of a predetermined time after stopping the hot water supply.
【００１４】[0014]
【発明の効果】以上のように本発明の給湯制御装置によ
れば次の効果が得られる。 （１）熱交換器を迂回するバイパス路に設けられたバイ
パス弁と、バイパス路と熱交換器の混合部に設けられた
出湯温度検出手段と、バイパス弁を閉方向に駆動する操
作力発生手段と、操作力発生手段が不動作時にバイパス
弁を開く付勢手段と、出湯温度検出手段の信号によって
操作力発生手段を制御する制御器を備えたので、操作力
発生手段の故障や停電時に直ちにバイパス弁を全開にし
出湯温度を下げるので熱湯が出ることがなく安全であ
る。また電源を接続しない状態を含め不使用時にはバイ
パス弁が開いており、水抜きが容易に行え凍結を防止す
ることができるばかりでなく、凍結防止のために水回路
の一部を加熱する場合にも熱交換器とバイパス路でルー
プができ熱対流によって均一に加熱できる。 （２）混合部に設けられた出湯温度検出手段とは別に熱
交換器の下流もしくは前記混合部の下流に第２出湯温度
検出手段を設け、前記第２出湯温度検出手段の信号によ
って操作力発生手段を停止させる制御器とは別の第２制
御器を備えたので、出湯温度検出手段の故障やマイコン
プログラムのバグや暴走に対しても、高温の湯が出るこ
とを未然に防止できるので安全である。As described above, according to the hot water supply control device of the present invention, the following effects can be obtained. (1) A bypass valve provided in a bypass passage bypassing the heat exchanger, a hot water outlet temperature detecting means provided in a mixing portion of the bypass passage and the heat exchanger, and an operation force generating means for driving the bypass valve in a closing direction. Since the operating force generating means is provided with a biasing means for opening the bypass valve when the operating force generating means is not operating, and a controller for controlling the operating force generating means by the signal of the hot water temperature detecting means, immediately when the operating force generating means fails or a power failure occurs. Since the bypass valve is fully opened and the hot water temperature is lowered, hot water does not come out and it is safe. Also, when not in use, including when the power is not connected, the bypass valve is open, which not only facilitates drainage of water and prevents freezing, but also when heating part of the water circuit to prevent freezing. Also, a loop can be formed in the heat exchanger and the bypass passage, and uniform heating can be achieved by heat convection. (2) A second hot water outlet temperature detecting means is provided downstream of the heat exchanger or downstream of the mixing portion in addition to the hot water outlet temperature detecting means provided in the mixing portion, and an operating force is generated by a signal from the second hot water temperature detecting means. Since a second controller different from the controller for stopping the means is provided, it is possible to prevent hot water from coming out even in the event of a failure of the hot water temperature detecting means, a bug in the microcomputer program, or a runaway, so it is safe. Is.
【図１】本発明の一実施例の給湯制御装置の構成図FIG. 1 is a configuration diagram of a hot water supply control device according to an embodiment of the present invention.
【図２】同装置に用いられたバイパス弁の断面図FIG. 2 is a sectional view of a bypass valve used in the device.
【図３】本発明の他の実施例の給湯制御装置の構成図FIG. 3 is a configuration diagram of a hot water supply control device according to another embodiment of the present invention.
【図４】従来の給湯制御装置の構成図FIG. 4 is a configuration diagram of a conventional hot water supply control device.
１０ 熱交換器 １３ バイパス路 １７ バイパス弁 １８ 出湯温度検出手段 ２３ 制御器 ２４ 操作力発生手段 ３７ 付勢手段 ３９ 第２出湯温度検出手段 ４０ 第２制御器 DESCRIPTION OF SYMBOLS 10 Heat exchanger 13 Bypass passage 17 Bypass valve 18 Hot water temperature detecting means 23 Controller 24 Operating force generating means 37 Energizing means 39 Second hot water temperature detecting means 40 Second controller
Claims (2)
イパス路と、前記バイパス路に設けられたバイパス弁
と、前記バイパス路と前記熱交換器の混合部に設けられ
た出湯温度検出手段と、前記バイパス弁を閉方向に駆動
する操作力発生手段と、前記操作力発生手段が不動作時
に前記バイパス弁を開く付勢手段と、前記出湯温度検出
手段の信号によって前記操作力発生手段を制御する制御
器を備えた給湯制御装置。1. A heat exchanger, a bypass passage bypassing the heat exchanger, a bypass valve provided in the bypass passage, and a hot water outlet temperature detection provided in a mixing portion of the bypass passage and the heat exchanger. Means, operating force generating means for driving the bypass valve in the closing direction, biasing means for opening the bypass valve when the operating force generating means does not operate, and the operating force generating means by a signal from the hot water temperature detecting means. Hot water supply control device including a controller for controlling the hot water.
は別に熱交換器の下流もしくは前記混合部の下流に第２
出湯温度検出手段を設け、前記第２出湯温度検出手段の
信号によって操作力発生手段を停止させる制御器とは別
の第２制御器を備えた請求項１記載の給湯制御装置。2. A second downstream of the heat exchanger or downstream of the mixing section, separately from the outlet heated water temperature detecting means provided in the mixing section.
2. The hot water supply control device according to claim 1, further comprising a second controller provided with a hot water outlet temperature detecting means and a controller for stopping the operating force generating means in response to a signal from the second hot water outlet temperature detecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5287951A JPH07139810A (en) | 1993-11-17 | 1993-11-17 | Hot water supply control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5287951A JPH07139810A (en) | 1993-11-17 | 1993-11-17 | Hot water supply control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07139810A true JPH07139810A (en) | 1995-06-02 |
Family
ID=17723855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5287951A Pending JPH07139810A (en) | 1993-11-17 | 1993-11-17 | Hot water supply control equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07139810A (en) |
-
1993
- 1993-11-17 JP JP5287951A patent/JPH07139810A/en active Pending
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