JPS63213744A - Freeze preventing device in hot water supply apparatus - Google Patents
Freeze preventing device in hot water supply apparatusInfo
- Publication number
- JPS63213744A JPS63213744A JP62047267A JP4726787A JPS63213744A JP S63213744 A JPS63213744 A JP S63213744A JP 62047267 A JP62047267 A JP 62047267A JP 4726787 A JP4726787 A JP 4726787A JP S63213744 A JPS63213744 A JP S63213744A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- water flow
- circulation pump
- pump
- hot 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 230000002528 anti-freeze Effects 0.000 claims description 21
- 108010053481 Antifreeze Proteins Proteins 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims 1
- 238000007710 freezing Methods 0.000 abstract description 10
- 230000008014 freezing Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Landscapes
- Control For Baths (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は浴槽や暖房機の放熱部に湯を循環させる給湯設
備において、冬期等に循環パイプや循環ポンプが凍結し
て装置の故障や破損を招くのを防止できる凍結防止装置
に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention is applicable to hot water supply equipment that circulates hot water to the heat radiating section of a bathtub or heater, and is designed to prevent equipment failure or damage due to freezing of circulation pipes and circulation pumps in winter, etc. The present invention relates to an anti-freezing device that can prevent freezing from occurring.
〈従来の技術〉
給湯設備における凍結防止装置として、従来、実開昭５
８−２０８４３号公報に記載の装置がある。<Conventional technology> As a freeze prevention device for hot water supply equipment,
There is an apparatus described in Japanese Patent No. 8-20843.
この装置は、瞬間湯沸器、貯湯ボイラー等の給湯器の給
水側の管路と出湯側の管路との間にバイパス回路を設け
、このバイパス回路に外気温の感知で駆動する循環ポン
プを設けたものである。外気温が一定以下になると前記
循環ポンプが駆動し、これによって管内の水が給湯器、
出湯側の管路、バイパス回路、給水側の管路を通って循
環し、凍結の防止がなされる。This device has a bypass circuit installed between the water supply side pipe and the hot water output side pipe of a water heater such as an instantaneous water heater or hot water storage boiler, and a circulation pump that is driven by sensing the outside temperature in this bypass circuit. It was established. When the outside temperature falls below a certain level, the circulation pump is activated, and the water in the pipes is pumped to the water heater,
Freezing is prevented by circulating through the piping on the hot water outlet side, the bypass circuit, and the piping on the water supply side.
〈発明が解決しようとする問題点〉
しかしながら、上記の従来技術では、管路内の水の有無
とは無関係に循環ポンプが駆動される構成であることか
ら、空運転される場合が生じ、無駄な電力を多く消費す
る他、循環ポンプの耐久性も悪くなる欠点があった。<Problems to be Solved by the Invention> However, in the above-mentioned conventional technology, the circulation pump is driven regardless of the presence or absence of water in the pipes, so it may run dry, resulting in wasteful operation. In addition to consuming a large amount of electricity, the circulation pump also had the disadvantage of poor durability.
〈目的〉
そこで本発明は上記従来技術の欠点を解消し、装置の省
電力化が図られ、耐久性も向上する給湯設備における凍
結防止装置の提供を目的とする。<Purpose> Therefore, the present invention aims to eliminate the drawbacks of the above-mentioned prior art, and to provide an anti-freeze device for hot water supply equipment, which can save power and improve durability of the device.
く問題点を解決するための手段〉
本発明は、熱交換器で加熱された湯を循環ポンプにより
循環パイプを通して放熱部へ循環させるようにすると共
に、外気が一定以下の温度になると温度スイッチが働い
て前記循環ポンプを駆動し、凍結防止運転を行うように
した給湯設備における凍結防止装置であって、前記温度
スイッチの他に前記循環パイプ内の水流を検出する水流
スイッチを設け、該水流スイッチが水流を検出している
場合には前記循環ポンプを通常の凍結防止運転で駆動し
、前記水流スイッチが水流を検出しない場合には前記循
環ポンプの駆動電圧を前記通常の凍結防止運転時より低
くして、低電圧による凍結防止運転を行うよう構成した
ことを特徴としている。Means for Solving the Problems> The present invention uses a circulation pump to circulate hot water heated by a heat exchanger through a circulation pipe to a heat radiating section, and when the temperature of the outside air falls below a certain level, a temperature switch is activated. This anti-freeze device for hot water supply equipment operates to drive the circulation pump and perform anti-freeze operation, and the water flow switch is provided with a water flow switch for detecting water flow in the circulation pipe in addition to the temperature switch. If the water flow switch detects a water flow, the circulation pump is driven in normal antifreeze operation, and if the water flow switch does not detect a water flow, the driving voltage of the circulation pump is lowered than in the normal antifreeze operation. It is characterized by being configured to perform antifreeze operation using low voltage.
−〈作用〉
温度スイッチと水流スイッチの両方が入った場合には通
常の凍結防止運転が行われ、温度スイッチが入っても水
流スイッチが入らない場合には低電圧で循環ポンプが駆
動される。温度スイッチが入らないということは、基本
的には管路内に水が無いということであるが、管内に全
く水が無いとは限らない。管内に水が途切れ途切れにあ
る場合や、循環ポンプ内にだけある場合、或いはたまた
ま水が送られてくるのに時間がかかった場合等、これら
の場合に水流スイッチが入っていないからといって循環
ポンプを回さないと、管内や循環ポンプ内に残っている
水が凍結を起こしやすく、故障、破損を招くことになる
。本発明では、水流スイッチが入らない場合には通常の
凍結防止運転時よりも低電圧で循環ポンプを回すように
しているので、−見本が無いと思われた場合における不
本意な凍結による故障、破損が回避できると共に、その
ような場合における省電力化を図ることができる。勿論
低電圧運転であるので、ポンプ空運転によるポンプ劣化
もある程度防止され、装置の耐久性が増す。また空運転
時のポンプ騒音も低下する。- <Function> If both the temperature switch and the water flow switch are turned on, normal antifreeze operation is performed, and if the temperature switch is turned on but the water flow switch is not turned on, the circulation pump is driven at low voltage. If the temperature switch does not turn on, it basically means that there is no water in the pipe, but it does not necessarily mean that there is no water in the pipe. If there is water in the pipes intermittently, if there is only water in the circulation pump, or if it happens that it takes a long time for the water to be delivered, in these cases, the water flow switch may not be turned on. If the circulation pump is not turned on, water remaining in the pipes and circulation pump is likely to freeze, leading to malfunctions and damage. In the present invention, when the water flow switch is not turned on, the circulation pump is run at a lower voltage than during normal anti-freeze operation, so - failures due to involuntary freezing when there is no sample available, Damage can be avoided, and power consumption can be reduced in such cases. Of course, since the pump is operated at a low voltage, deterioration of the pump due to idling is prevented to some extent, increasing the durability of the device. Pump noise during dry operation is also reduced.
〈実施例〉
第１図は本発明を風呂加熱装置に適用した場合の実施装
置の全体構成図、第２図は凍結防止のための循環ポンプ
の制御例を示すフローチャートである。<Example> FIG. 1 is an overall configuration diagram of an implementation device when the present invention is applied to a bath heating device, and FIG. 2 is a flowchart showing an example of controlling a circulation pump for freezing prevention.
放熱部である浴槽１０に対する給湯設備として、熱交換
器である風呂釜２０、その制御部３０、遠隔操作器４０
等が設けられている。前記風呂釜２０は貯湯式の水加熱
器であり、燃料の燃焼部２１、貯湯部２２、入水管２３
、出湯管２４等が設けられている。前記浴槽１０と熱交
換器４０との間には、往き管２５ａと戻り管２５ｂと熱
交換コイル２５ｃとからなる循環路２５が設けられ、該
循環路２５の往き管２５ａには循環ポンプ２６が設けら
れている。また前記戻り管２５ｂには風呂温度検知器２
７と風呂水位検知器２８と、前記出湯管２４からの温水
を浴槽１０に供給するためのホッパ２９が設けられてい
る。Hot water supply equipment for the bathtub 10, which is a heat radiating part, includes a bath pot 20, which is a heat exchanger, a control part 30, and a remote controller 40.
etc. are provided. The bath pot 20 is a hot water storage type water heater, and includes a fuel combustion section 21, a hot water storage section 22, and a water inlet pipe 23.
, a hot water outlet pipe 24, etc. are provided. A circulation path 25 is provided between the bathtub 10 and the heat exchanger 40, and includes an outflow pipe 25a, a return pipe 25b, and a heat exchange coil 25c. It is provided. Further, the return pipe 25b includes a bath temperature sensor 2.
7, a bath water level detector 28, and a hopper 29 for supplying hot water from the hot water outlet pipe 24 to the bathtub 10.
前記制御部３０は、例えばマイコンが内蔵されており、
浴槽１０への給湯、追焚き運転、保温保水運転及びそれ
らの自動運転のための制御ソフトウェアが組込まれてい
る他、凍結防止のための制御ソフトウェアが組込まれて
いる。The control unit 30 has a built-in microcomputer, for example,
In addition to the built-in control software for supplying hot water to the bathtub 10, the reheating operation, the heat-retaining operation, and the automatic operation thereof, the control software for preventing freezing is also incorporated.
前記遠隔操作器４０は、使用者が風呂運転のための指令
を与える入力装置である。該遠隔操作器４０には、浴槽
１０への給湯から焚上げまで及び保温保水を自動的に行
うための自動運転スイッチ４１、追焚きを行うための追
焚きスイッチ４２、保温運転を行うための保温スイッチ
４３が設けられ、また浴槽１０及びそれ以外の場所に給
湯を行うための給湯スイッチ４４、凍結防止運転スイッ
チ４５、その他給湯の温調ツマミ４６等が設けられてい
る。The remote controller 40 is an input device through which the user gives commands for operating the bath. The remote controller 40 includes an automatic operation switch 41 that automatically performs everything from supplying hot water to the bathtub 10 to heating it up and keeping the water warm; A switch 43 is provided, as well as a hot water supply switch 44 for supplying hot water to the bathtub 10 and other places, an antifreeze operation switch 45, and a temperature control knob 46 for supplying hot water.
前記循環路２５の往き管２５ａには水流スイッチ５１が
設けられ、循環ポンプ２６の近傍には外気温を検出する
温度スイッチ５２が設けられる。また循環ポンプ２６に
対しては該循環ポンプの駆動電圧を切換えるための電圧
切換手段５３が設けられる。A water flow switch 51 is provided on the outgoing pipe 25a of the circulation path 25, and a temperature switch 52 for detecting the outside temperature is provided near the circulation pump 26. Further, the circulation pump 26 is provided with voltage switching means 53 for switching the driving voltage of the circulation pump.
風呂の追焚きは、熱交換コイル２５ｃで加熱された湯が
循環ポンプ２６によって往き管２５ａを通って浴槽１０
へ送られ、浴槽１０からの湯が戻り管２５ｂを通って熱
交換コイル２５ｃに送られることにより、湯が循環路２
５を循環せられて行われる。保温運転の場合も同様であ
る。保水時には、風呂釜２０の貯湯部２２からの湯がホ
ッパ２９を経て浴槽ｌＯに入る。To reheat the bath, hot water heated by the heat exchange coil 25c is passed through the outgoing pipe 25a by the circulation pump 26 and sent to the bathtub 10.
The hot water from the bathtub 10 is sent to the heat exchange coil 25c through the return pipe 25b, so that the hot water is sent to the circulation path 2.
5 is cycled through. The same applies to the case of heat retention operation. During water retention, hot water from the hot water storage section 22 of the bath pot 20 enters the bathtub 10 via the hopper 29.
今、遠隔操作部４０の凍結防止運転スイッチ４５がオン
されている場合、前記温度スイッチ５２が一定温度以下
（例えば３℃以下）の外気を検知すると、制御部３０を
介して凍結防止運転用の循環ポンプ２６の主スィッチが
オンとされ、そしてその場合、水流スイッチ５１もオン
（水流を感知した）であれば通常の凍結防止運転用の駆
動電圧で循環ポンプ２６が駆動せられ、水流スイッチ５
１がオフ（水流を感知しない）であれば制御部３０を介
して電圧切換手段５３で駆動電圧が低電圧に切換えられ
、低電圧の駆動電圧で循環ポンプ２６が駆動せられる。If the antifreeze operation switch 45 of the remote control unit 40 is currently turned on, when the temperature switch 52 detects outside air below a certain temperature (for example, 3°C or less), the antifreeze operation switch 45 is activated via the control unit 30. If the main switch of the circulation pump 26 is turned on, and in that case, the water flow switch 51 is also turned on (water flow is sensed), the circulation pump 26 is driven with the drive voltage for normal antifreeze operation, and the water flow switch 51 is turned on.
1 is off (no water flow is sensed), the drive voltage is switched to a low voltage by the voltage switching means 53 via the control unit 30, and the circulation pump 26 is driven with the low drive voltage.
なお循環ポンプ２６の駆動電圧は、風呂追焚き時の駆動
電圧に対して通常の凍結防止運転用の駆動電圧を低くし
てもよいし、同じであってもよい。Note that the driving voltage of the circulation pump 26 may be lower than the driving voltage for normal antifreeze operation, or may be the same as the driving voltage for reheating the bath.
また各駆動電圧の実際の値は特に限定されない。Further, the actual value of each drive voltage is not particularly limited.
本発明は以上で説明した実施例に限定されるものではな
い。例えば上記実施例における浴槽１０の部分に暖房装
置の放熱器が置換された場合等も本発明の技術範囲に属
することは勿論である。The invention is not limited to the embodiments described above. For example, it goes without saying that a case where a radiator of a heating device is replaced in the bathtub 10 in the above embodiment also belongs to the technical scope of the present invention.
く効果〉
本発明は以上の構成よりなり、凍結防止運転時に水流ス
イッチが水流を検出しない場合には、循環ポンプの運転
を通常（水流スイッチが水流を検出している場合）の凍
結防止運転時より低い駆動電圧で行うようにしているの
で、−見本が無いと思われた場合における場合でも、不
本意な凍結による循環ポンプやその他の部分の故障、破
損が回避できる。勿論、実際には空運転となっている場
合でも低電圧運転に切換えられているので、それだけ省
エネルギー化が図られ、また循環ポンプの傷みも少なく
耐久性にも良い。さらにポンプ空運転時の騒音も低くな
る効果がある。Effects> The present invention has the above configuration, and when the water flow switch does not detect water flow during antifreeze operation, the circulation pump is operated during normal antifreeze operation (when the water flow switch detects water flow). Since the operation is performed at a lower driving voltage, it is possible to avoid malfunctions and damage to the circulation pump and other parts due to inadvertent freezing even in cases where there is no sample available. Of course, even when the pump is actually running idly, it is switched to low-voltage operation, which results in greater energy savings and less damage to the circulation pump, which improves durability. Furthermore, it has the effect of reducing noise when the pump is running idly.
第１図は本発明を風呂加熱装置に適用した場合の実施装
置の全体構成図、第２図は凍結防止のための循環ポンプ
の制御例を示すフローチャートである。
１０：浴槽 、２０：風呂釜２５：循環路
２６：循環ポンプ３０：制御部
４０：遠隔操作器４５：凍結防止運転スイッチ
５１：水流スイッチ ５２：温度スイッチ５３：電
圧切換手段FIG. 1 is an overall configuration diagram of an implementation device when the present invention is applied to a bath heating device, and FIG. 2 is a flowchart showing an example of controlling a circulation pump for freezing prevention. 10: Bathtub, 20: Bath pot 25: Circulation path
26: Circulation pump 30: Control section
40: Remote controller 45: Freeze prevention operation switch 51: Water flow switch 52: Temperature switch 53: Voltage switching means
Claims (1)
を通して放熱部へ循環させるようにすると共に、外気が
一定以下の温度になると温度スイッチが働いて前記循環
ポンプを駆動し、凍結防止運転を行うようにした給湯設
備における凍結防止装置であって、前記温度スイッチの
他に前記循環パイプ内の水流を検出する水流スイッチを
設け、該水流スイッチが水流を検出している場合には前
記循環ポンプを通常の凍結防止運転で駆動し、前記水流
スイッチが水流を検出しない場合には前記循環ポンプの
駆動電圧を前記通常の凍結防止運転時より低くして、低
電圧による凍結防止運転を行うよう構成したことを特徴
とする給湯設備における凍結防止装置。The hot water heated by the heat exchanger is circulated by the circulation pump to the heat radiation section through the circulation pipe, and when the outside air temperature falls below a certain level, a temperature switch is activated to drive the circulation pump to perform antifreeze operation. In this anti-freeze device for hot water supply equipment, a water flow switch for detecting water flow in the circulation pipe is provided in addition to the temperature switch, and when the water flow switch detects water flow, the circulation pump is turned off. The circulation pump is driven in a normal antifreeze operation, and when the water flow switch does not detect a water flow, the driving voltage of the circulation pump is lower than that during the normal antifreeze operation, and the antifreeze operation is performed using a low voltage. An antifreeze device for hot water supply equipment, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62047267A JPH06100366B2 (en) | 1987-03-02 | 1987-03-02 | Freezing prevention device in hot water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62047267A JPH06100366B2 (en) | 1987-03-02 | 1987-03-02 | Freezing prevention device in hot water supply equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63213744A true JPS63213744A (en) | 1988-09-06 |
| JPH06100366B2 JPH06100366B2 (en) | 1994-12-12 |
Family
ID=12770519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62047267A Expired - Lifetime JPH06100366B2 (en) | 1987-03-02 | 1987-03-02 | Freezing prevention device in hot water supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06100366B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02169953A (en) * | 1988-12-22 | 1990-06-29 | Gastar Corp | Antifreezing operation of forced circulation type bath boiler |
| US7532982B2 (en) | 2006-08-04 | 2009-05-12 | Rinnai Corporation | Freeze forecasting device for hot water heating apparatus and hot water heating apparatus |
| JP2009287875A (en) * | 2008-05-30 | 2009-12-10 | Mitsubishi Electric Corp | Hot water supply device |
| JP2009287876A (en) * | 2008-05-30 | 2009-12-10 | Mitsubishi Electric Corp | Hot water supply device |
| JP2009287839A (en) * | 2008-05-29 | 2009-12-10 | Mitsubishi Electric Corp | Heat pump water heater |
| GB2482627A (en) * | 2007-01-23 | 2012-02-08 | Pure Leisure Group Ltd | Apparatus for introducing antifreeze into a water supply system |
| JP2012132588A (en) * | 2010-12-20 | 2012-07-12 | Corona Corp | Bath device |
-
1987
- 1987-03-02 JP JP62047267A patent/JPH06100366B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02169953A (en) * | 1988-12-22 | 1990-06-29 | Gastar Corp | Antifreezing operation of forced circulation type bath boiler |
| US7532982B2 (en) | 2006-08-04 | 2009-05-12 | Rinnai Corporation | Freeze forecasting device for hot water heating apparatus and hot water heating apparatus |
| GB2482627A (en) * | 2007-01-23 | 2012-02-08 | Pure Leisure Group Ltd | Apparatus for introducing antifreeze into a water supply system |
| GB2482627B (en) * | 2007-01-23 | 2012-04-04 | Pure Leisure Group Ltd | Improvements in and relating to water supply systems |
| JP2009287839A (en) * | 2008-05-29 | 2009-12-10 | Mitsubishi Electric Corp | Heat pump water heater |
| JP2009287875A (en) * | 2008-05-30 | 2009-12-10 | Mitsubishi Electric Corp | Hot water supply device |
| JP2009287876A (en) * | 2008-05-30 | 2009-12-10 | Mitsubishi Electric Corp | Hot water supply device |
| JP2012132588A (en) * | 2010-12-20 | 2012-07-12 | Corona Corp | Bath device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06100366B2 (en) | 1994-12-12 |
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