JP2505767Y2 - Hot water heating system - Google Patents
Hot water heating systemInfo
- Publication number
- JP2505767Y2 JP2505767Y2 JP1989035710U JP3571089U JP2505767Y2 JP 2505767 Y2 JP2505767 Y2 JP 2505767Y2 JP 1989035710 U JP1989035710 U JP 1989035710U JP 3571089 U JP3571089 U JP 3571089U JP 2505767 Y2 JP2505767 Y2 JP 2505767Y2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- temperature
- heat exchanger
- thermal valve
- valve
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 （イ）産業上の利用分野 本考案は温水の循環により室内等の暖房を行う温水暖
房装置に関し、特に循環水の凍結防止に関する。[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a hot water heating device for heating a room or the like by circulating hot water, and more particularly to prevention of freezing of circulating water.
（ロ）従来の技術 上記温水暖房装置で、特に例えば特願昭63−107067号
にて出願している様に、例えば低温水供給用ヘッダ（5
6）に熱動弁（56a）〜（56c）を装着したもので、かつ
循環回路内の水温が凍結する恐れのある低温に低下した
場合、循環ポンプ（34）を作動すると共にガスバーナ
（41）を燃焼して凍結防止運転を行うものでは、上記循
環ポンプの作動と同時にガスバーナを点火し、又同時に
熱動弁に通電する為、バスヒータ（71）等の高温用負荷
に設けられたバルブが閉じられて、これらへの温水循環
が行われない場合には、上記熱動弁が通電後開く迄の１
〜２分の間、熱交換器（35）を出た温水はバイパス管
（36）を通って循環する。その為に例えば温度センサー
（53）の出力が設定温度（例えば20℃）になると凍結防
止運転を停止する様に構成した場合、上記熱動弁が完全
に開く前に運転を停止する事もあり、負荷へ温水が循環
されないで該部の循環水の凍結防止が行えないという問
題がある。(B) Prior Art In the above-mentioned hot water heating device, for example, as described in Japanese Patent Application No. 63-107067, a low-temperature water supply header (5
When the heat operated valves (56a) to (56c) are attached to 6) and the water temperature in the circulation circuit drops to a low temperature that may freeze, the circulation pump (34) is activated and the gas burner (41) In the case of performing the anti-freezing operation by burning the air, the gas burner is ignited at the same time as the operation of the circulation pump, and at the same time, the thermal valve is energized, so that the valve installed in the high temperature load such as the bus heater (71) Therefore, if hot water circulation to these is not performed, 1
Hot water exiting the heat exchanger (35) for ~ 2 minutes circulates through the bypass pipe (36). Therefore, for example, if the freeze protection operation is stopped when the output of the temperature sensor (53) reaches the set temperature (for example, 20 ° C), the operation may be stopped before the thermal valve is completely opened. However, there is a problem that the hot water is not circulated to the load and the freezing of the circulating water in the part cannot be prevented.
一方、実開昭53−163945号公報には、温水温度が凍結
危険温度に低下すると自動弁を開き、その後気温がこの
凍結危険温度よりも低い運転指令設定温度に低下すると
循環ポンプを作動させる凍結防止装置が開示されてい
る。On the other hand, in Japanese Utility Model Laid-Open No. 163945/1993, an automatic valve is opened when the hot water temperature drops to a freezing danger temperature, and then the circulation pump is operated when the temperature drops to an operation command set temperature lower than the freezing danger temperature. A prevention device is disclosed.
（ハ）考案が解決しようとする課題 上記各技術にあっては熱動弁が全開にならないうちに
凍結防止運転が停止することがないようにするための工
夫がなされていないため、負荷への循環水の凍結を防止
できない不具合があった。(C) Problems to be solved by the invention In each of the above-mentioned technologies, no measure is taken to prevent the antifreezing operation from stopping before the thermal valve is fully opened, so that the load There was a problem that the freezing of circulating water could not be prevented.
そこで本考案では、熱動弁が全開にならないうちに凍
結防止運転が停止することがないように温水温度が所定
の凍結可能温度に達すると前記熱動弁に通電し、その後
この熱動弁が全開になるまでの時間よりも長い所定時間
経過後に前記循環ポンプを作動させると共にバーナに点
火する遅延手段を備えた温水暖房装置を提供することを
目的とする。Therefore, in the present invention, the hot valve is energized when the temperature of the hot water reaches a predetermined freezing temperature so that the antifreezing operation does not stop before the hot valve is fully opened. An object of the present invention is to provide a hot water heating device including a delay means for activating the circulation pump and igniting the burner after a predetermined time longer than the time until the full opening is reached.
（ニ）課題を解決するための手段 本考案は、熱交換器にて加熱した温水を、循環ポンプ
にて熱動弁を介して放熱器に循環する温水循環流路と、
前記温水循環流路の熱交換器の入口側温水温度を検出す
る温度検出器と、この熱交換器の入口管と出口管とに跨
るように設けられたバイパス管と、前記入口側温水温度
が所定温度になるように、前記熱交換器を加熱するバー
ナを制御する制御手段とを備え、前記温度検出器で検出
した温水温度が所定の凍結可能温度に達すると、前記熱
動弁を動作させる温水暖房装置において、前記制御手段
は、温水温度が所定の凍結可能温度に達すると前記熱動
弁に通電し、その後この熱動弁が全開になるまでの時間
よりも長い所定時間経過後に前記循環ポンプを作動させ
ると共に前記バーナに点火する遅延手段を備えたもので
ある。(D) Means for Solving the Problem The present invention is a hot water circulation flow path for circulating hot water heated by a heat exchanger to a radiator via a heat valve by a circulation pump,
A temperature detector for detecting the inlet side hot water temperature of the heat exchanger of the hot water circulation passage, a bypass pipe provided so as to straddle the inlet pipe and the outlet pipe of the heat exchanger, and the inlet side hot water temperature is And a control means for controlling a burner that heats the heat exchanger so as to reach a predetermined temperature. When the hot water temperature detected by the temperature detector reaches a predetermined freezing temperature, the thermal valve is operated. In the hot water heating device, the control means energizes the thermal valve when the hot water temperature reaches a predetermined freezing temperature, and then the circulation is performed after a predetermined time longer than the time until the thermal valve is fully opened. A delay means for activating the pump and igniting the burner is provided.
（ホ）作用 本考案によれば、温水温度が所定の凍結可能温度に達
すると熱動弁に通電し、熱動弁が全開になるまでは循環
ポンプを作動せずバーナにも点火させないので、この熱
動弁が全開になるまでの期間は温水は主にバイパス管を
経て熱交換器の入口管に帰還しやすく、この熱動弁の開
放中に弁を経て放熱器に流れた温水もこの入口管に帰還
し、通電の所定時間後に循環ポンプ及びバーナが作動す
るので放熱器側にとどまっている温水を回収しつつ効率
的に凍結防止運転が行われ、従来のように熱動弁が全開
にならないうちに凍結防止運転が停止することはない。(E) Action According to the present invention, when the hot water temperature reaches the predetermined freezing temperature, the thermal valve is energized, and the circulation pump is not operated and the burner is not ignited until the thermal valve is fully opened. During the period until the thermal valve is fully opened, hot water is likely to return to the inlet pipe of the heat exchanger mainly via the bypass pipe, and the hot water flowing to the radiator via the valve while the thermal valve is open also has this temperature. After returning to the inlet pipe, the circulation pump and burner are activated after a predetermined time of energization, so the freezing operation is efficiently performed while collecting the hot water remaining on the radiator side, and the thermal valve is fully opened as in the past. The anti-freezing operation will not stop before it becomes.
（ヘ）実施例 本考案の実施例を先ず第１図に基づき説明すると、
（１）は温水暖房器本体で、外装ケース（２）内に熱交
換器（３）、これを加熱するガスバーナ（４）、このガ
スバーナの排気ガスを外部に排出する排気ダクト
（５）、循環ポンプ（６）、膨張タンク（７）等を収納
している。(F) Embodiment An embodiment of the present invention will be described first with reference to FIG.
(1) is a main body of the hot water heater, a heat exchanger (3) in an outer case (2), a gas burner (4) for heating the same, an exhaust duct (5) for discharging exhaust gas of this gas burner to the outside, a circulation It contains a pump (6), an expansion tank (7), and the like.
又上記熱交換器（３）には、分岐用のヘッダー（８）
を介して例えば浴槽（９）内の水（10）を追焚する追焚
用コイル（11）−ヘッダー（12）−膨張タンク（７）−
循環ポンプ（６）を順次ループ状に接続し、これらにて
温水循環流路（13）を構成している。尚上記ヘッダー
（８）−（12）間には、室内等に設置される暖房用放熱
器（14）も連結し、かつこの放熱器に近接して図示しな
い運転スイッチと連動した開閉弁（15）を設けていると
共に、上記追焚用コイル（11）にも同じく開閉弁（15）
を設けている。The heat exchanger (3) has a header (8) for branching.
Reheating coil (11) for reheating the water (10) in the bathtub (9) via the -header (12) -expansion tank (7)-
The circulation pumps (6) are sequentially connected in a loop, and these constitute a hot water circulation flow channel (13). A heating radiator (14) installed in a room or the like is also connected between the headers (8) and (12), and an on-off valve (15) interlocked with an operation switch (not shown) is located close to the radiator. ) Is provided, and the open / close valve (15) is also provided in the reheating coil (11).
Is provided.
更に上記循環ポンプ（６）の下流には、該部から低温
ヘッダー（16）を介して上記ヘッダー（12）に戻る低温
水循環流路（17）を分岐接続し、かつ上記低温ヘッダー
（16）とヘッダー（12）間には、低温用放熱器である例
えば周知の床暖房用パネル（18）を接続していると共
に、低温ヘッダー（16）には上記床暖房用パネル（18）
とセットのコントローラ（19）にて開閉制御を行う熱動
弁（20）を装着している。Further, downstream of the circulation pump (6), a low temperature water circulation flow path (17) returning from the portion to the header (12) via the low temperature header (16) is branched and connected to the low temperature header (16). A low-temperature radiator, for example, a well-known floor heating panel (18) is connected between the headers (12), and the low-temperature header (16) has the floor heating panel (18).
And a thermal valve (20) that controls opening and closing with the controller (19) of the set is installed.
尚上記コントローラ（19）と熱動弁（20）はセットに
なっており、コントローラ（19）の増加に応じて熱動弁
（21）（22）を増加し、かつこの増加した熱動弁にて開
閉する接続管（23）（24）に各々上記床暖房用パネル
（18）等の負荷を接続して用いる。又上記熱動弁（20）
（21）（22）はコントローラ（19）に設けた床暖房用パ
ネル（18）等の負荷の運転スイッチ（25）の運転開始操
作によって内蔵した図示しない弁を徐々に開くようにな
っている。The controller (19) and the thermal valve (20) are a set, and the thermal valves (21) and (22) are increased in accordance with the increase in the controller (19), and the increased thermal valve is Loads such as the floor heating panel (18) are connected to the connection pipes (23) and (24) that are opened and closed. The above-mentioned thermal valve (20)
The valves (21) and (22) gradually open an internal valve (not shown) by the operation start operation of the operation switch (25) of the load such as the floor heating panel (18) provided in the controller (19).
（26）は上記熱交換器（３）の出口側温水温度を検出
するサーミスタ等から成る高温用温度検出器、（27）は
上記温水循環流路（13）の循環ポンプ（６）の少し下流
の温水温度を検出する同じくサーミスタ等から成る低温
用温度検出器、（28）は上記温水循環流路（13）の熱交
換器（３）下流と膨張タンク（７）上流とを短絡するバ
イパス管である。(26) is a high temperature temperature detector comprising a thermistor or the like for detecting the outlet side hot water temperature of the heat exchanger (3), and (27) is a little downstream of the circulation pump (6) of the hot water circulation flow path (13). (28) is a bypass pipe that short-circuits the downstream of the heat exchanger (3) and the upstream of the expansion tank (7) of the hot water circulation flow path (13). Is.
（29）は上記ガスバーナ（４）にガスを供給するガス
通路で、その上流側より電磁開閉弁（30），ガス比例弁
（31），電磁切換弁（32）を順次接続している。Reference numeral (29) is a gas passage for supplying gas to the gas burner (4), and an electromagnetic opening / closing valve (30), a gas proportional valve (31), and an electromagnetic switching valve (32) are sequentially connected from the upstream side of the gas passage.
（33）はマイコンを用いた制御回路で、第２図にて示
す様にマイコン（34）の入力に、メインリモコン（3
5）、コントローラ（19）、各温度検出器（26）（27）
を接続していると共に、出力には上記電磁開閉弁（3
0）、ガス比例弁（31）、循環ポンプ（６）、熱動弁（2
0）〜（22）を接続している。(33) is a control circuit using a microcomputer. As shown in FIG. 2, the main remote controller (3
5), controller (19), temperature detectors (26) (27)
The solenoid valve (3
0), gas proportional valve (31), circulation pump (6), thermal valve (2
0) to (22) are connected.
又上記マイコン（34）は、メインリモコン（35）によ
る設定入力にて凍結防止運転が行われた場合、例えば上
記低温用温度検出器（27）の出力が、真水の凍結温度
（０℃）に近い凍結可能温度（例えば３℃）に達する
と、熱動弁（20）に通電し、この通電後この熱動弁が全
開になるまでの時間よりも長い所定時間例えば４分後
（熱動弁は通電開始後全開までに略２分の時間を必要と
するためこの２分よりも長い４分とした）に循環ポンプ
（６）を作動すると共にガスバーナ（４）を点火燃焼し
て凍結防止運転を行う為の遅延手段（36）を備えてい
る。Further, when the freeze prevention operation is performed by the setting input by the main remote controller (35), the microcomputer (34) outputs the output of the low temperature temperature detector (27) to the freezing temperature (0 ° C.) of fresh water, for example. When the freezing temperature reaches a near freezing temperature (for example, 3 ° C), the thermal valve (20) is energized, and after this energization, a predetermined time longer than the time until the thermal valve is fully opened, for example, 4 minutes (thermal valve Requires about 2 minutes to fully open after the start of energization, so it was set to 4 minutes, which is longer than 2 minutes.) The circulation pump (6) is operated, and the gas burner (4) is ignited and burned to prevent freeze operation. A delay means (36) for performing the above is provided.
而して上記マイコン（34）は、上記メインリモコン
（35）又は上記コントローラ（17）に設けた運転スイッ
チ（36）（23）の運転開始操作を検出すると、上記電磁
開閉弁（30），ガス比例弁（31）を作動すると共に、図
示しない点火装置を作動してガスバーナ（４）を点火
し、かつ循環ポンプ（６）を回転して温水循環回路（1
3）内の循環水を加熱制御する。When the microcomputer (34) detects the operation start operation of the operation switches (36) (23) provided on the main remote controller (35) or the controller (17), the electromagnetic opening / closing valve (30) and gas are detected. The proportional valve (31) is operated, an ignition device (not shown) is operated to ignite the gas burner (4), and the circulation pump (6) is rotated to rotate the hot water circulation circuit (1
3) The circulating water inside is heated and controlled.
尚上記制御回路（33）は、例えば浴槽水（10）の追焚
運転、又は上記ヘッダー（８）に接続される室内暖房用
放熱器（14）による暖房運転時には、高温用温度検出器
（26）にて検出する熱交換器（３）の出口側温度が80℃
になる様に、ガス比例弁（31）を制御してガスバーナ
（４）の火力を調節し、一方コントローラ（19）の操作
により熱動弁（20）（21）…を開いて低温水循環流路
（17）に接続した負荷を作動する場合には、低温用温度
検出器（27）にて検出する戻り温水温度が60℃になる様
にガスバーナ（４）の火力を調節する。Incidentally, the control circuit (33), for example, during the heating operation of the bath water (10) or the heating operation by the indoor heating radiator (14) connected to the header (8), the high temperature temperature detector (26). ) The temperature on the outlet side of the heat exchanger (3) detected by
Control the gas proportional valve (31) to adjust the heating power of the gas burner (4), while operating the controller (19) to open the thermal valves (20) (21) ... When the load connected to (17) is operated, the heating power of the gas burner (4) is adjusted so that the returned hot water temperature detected by the low temperature temperature detector (27) becomes 60 ° C.
更にメインリモコン（35）からの設定入力による凍結
防止運転時には、上記の様に低温用温度検出器（27）の
出力が例えば３℃に達すると、マイコン（34）にて先ず
熱動弁（20）（21）…に通電し、通電後例えば４分経過
して上記熱動弁（20）（21）…が十分開かれた頃に循環
ポンプ（６）を作動すると共に、電磁開閉弁（30）、ガ
ス比例弁（31）等を制御してガスバーナ（４）を点火燃
焼する事で、例えば追焚用コイル（11）、暖房用放熱器
（14）等が不使用時で開閉弁（15）（15）が閉じられて
いる場合には、熱交換器（３）で加熱された温水はバイ
パス管（28）を経て膨張タンク（７）に至り、その後循
環ポンプ（６）を通った後、一部は低温ヘッダー（16）
−床暖房パネル（18）−ヘッダー（12）と循環し、一部
は熱交換器（３）に戻り、これを繰り返す。Further, during the anti-freezing operation by the setting input from the main remote controller (35), when the output of the low temperature temperature detector (27) reaches, for example, 3 ° C. as described above, the microcomputer (34) first causes the thermal valve (20). ) (21) ... is energized, and the circulating pump (6) is operated when the thermal valves (20) (21) ... ), By controlling the gas proportional valve (31) and the like to ignite and burn the gas burner (4), for example, the on-off valve (15) when the reheating coil (11), the heating radiator (14) and the like are not used. ) (15) is closed, the hot water heated by the heat exchanger (3) reaches the expansion tank (7) via the bypass pipe (28) and then passes through the circulation pump (6). , Some low temperature headers (16)
-It circulates with the floor heating panel (18) -header (12), a part returns to the heat exchanger (3), and repeats this.
尚上記点火燃焼により例えば低温用温度検出器（27）
の出力が20℃に達すると、ガスバーナ（４）を消火する
と共に循環ポンプ（６）を停止し、停止後再度低温用温
度検出器（27）の出力が３℃に低下すると上記運転を行
い、以後凍結防止運転が停止される迄これを繰り返す。By the above ignition combustion, for example, a low temperature detector (27)
When the output of reaches 20 ° C, the gas burner (4) is extinguished, the circulation pump (6) is stopped, and after the output of the low temperature detector (27) drops to 3 ° C, the above operation is performed. After that, this is repeated until the antifreezing operation is stopped.
（ト）考案の効果 本考案によれば、温水温度が所定の凍結可能温度に達
すると熱動弁に通電し、熱動弁が全開になるまでは循環
ポンプを作動せずバーナにも点火させないので、この熱
動弁が全開になるまでの期間は温水は主にバイパス管を
経て熱交換器の入口管に帰還させることができると共
に、この熱動弁の開放中に弁を経て放熱器に流れた温水
もこの入口管に帰還させることができ、しかも熱動弁へ
の通電の所定時間後に循環ポンプ及びバーナが作動する
ので、放熱器側にとどまっている温水を回収しつつ効率
的な凍結防止運転が行え、循環水の凍結を防止でき、熱
動弁が全開にならないうちに凍結防止運転が停止する従
来の不具合を解消できる。According to the present invention, when the hot water temperature reaches a predetermined freezing temperature, the thermal valve is energized and the circulation pump is not operated and the burner is not ignited until the thermal valve is fully opened. Therefore, hot water can be returned mainly to the inlet pipe of the heat exchanger through the bypass pipe during the period until the thermal valve is fully opened. The hot water that has flowed can also be returned to this inlet pipe, and since the circulation pump and burner are activated after the specified time has passed after energizing the thermal valve, the freezing of the hot water remaining on the radiator side can be efficiently performed. The preventive operation can be performed, the circulating water can be prevented from freezing, and the conventional problem that the antifreeze operation is stopped before the thermal valve is fully opened can be solved.
第１図は本考案の概略構成図、第２図は同じく制御回路
のブロック図である。 （３）……熱交換器、（６）……循環ポンプ、（13）…
…温水循環回路、（14）……暖房用放熱器、（18）……
床暖房用パネル、（20）（21）（22）……熱動弁、（2
6）……高温用温度検出器、（27）……低温用温度検出
器、（33）……制御回路、（36）……遅延手段。FIG. 1 is a schematic configuration diagram of the present invention, and FIG. 2 is a block diagram of the control circuit. (3) ... Heat exchanger, (6) ... Circulation pump, (13) ...
… Hot water circulation circuit, (14) …… Heating radiator, (18) ……
Floor heating panel, (20) (21) (22) …… thermal valve, (2
6) …… High temperature temperature detector, (27) …… Low temperature temperature detector, (33) …… Control circuit, (36) …… Delay means.
Claims (1)
にて熱動弁を介して放熱器に循環する温水循環流路と、
前記温水循環流路の熱交換器の入口側温水温度を検出す
る温度検出器と、この熱交換器の入口管と出口管とに跨
るように設けられたバイパス管と、前記入口側温水温度
が設定温度になるように、前記熱交換器を加熱するバー
ナを制御する制御手段とを備え、前記温度検出器で検出
した温水温度が所定の凍結可能温度に達すると、前記熱
動弁を動作させる温水暖房装置において、前記制御手段
は、温水温度が所定の凍結可能温度に達すると前記熱動
弁に通電し、その後この熱動弁が全開になるまでの時間
よりも長い所定時間経過後に前記循環ポンプを作動させ
ると共に前記バーナに点火する遅延手段を備えたことを
特徴とする温水暖房装置。1. A hot water circulation flow path for circulating hot water heated by a heat exchanger to a radiator via a thermal valve by a circulation pump,
A temperature detector for detecting the inlet side hot water temperature of the heat exchanger of the hot water circulation passage, a bypass pipe provided so as to straddle the inlet pipe and the outlet pipe of the heat exchanger, and the inlet side hot water temperature is And a control means for controlling a burner for heating the heat exchanger so that the temperature reaches a set temperature, and when the hot water temperature detected by the temperature detector reaches a predetermined freezing temperature, the thermal valve is operated. In the hot water heating device, the control means energizes the thermal valve when the hot water temperature reaches a predetermined freezing temperature, and then the circulation is performed after a predetermined time longer than the time until the thermal valve is fully opened. A hot water heating apparatus comprising: a delay means for operating a pump and igniting the burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989035710U JP2505767Y2 (en) | 1989-03-28 | 1989-03-28 | Hot water heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989035710U JP2505767Y2 (en) | 1989-03-28 | 1989-03-28 | Hot water heating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02128008U JPH02128008U (en) | 1990-10-22 |
| JP2505767Y2 true JP2505767Y2 (en) | 1996-07-31 |
Family
ID=31541297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989035710U Expired - Lifetime JP2505767Y2 (en) | 1989-03-28 | 1989-03-28 | Hot water heating system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505767Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012172948A (en) * | 2011-02-24 | 2012-09-10 | Panasonic Corp | Hot water heating system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586165Y2 (en) * | 1977-05-31 | 1983-02-02 | 東京瓦斯株式会社 | Freeze protection device in central heating system |
-
1989
- 1989-03-28 JP JP1989035710U patent/JP2505767Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02128008U (en) | 1990-10-22 |
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