JPH0534441U - Water stop safety device for water heater - Google Patents
Water stop safety device for water heaterInfo
- Publication number
- JPH0534441U JPH0534441U JP8998591U JP8998591U JPH0534441U JP H0534441 U JPH0534441 U JP H0534441U JP 8998591 U JP8998591 U JP 8998591U JP 8998591 U JP8998591 U JP 8998591U JP H0534441 U JPH0534441 U JP H0534441U
- Authority
- JP
- Japan
- Prior art keywords
- water
- combustion
- water heater
- valve
- abnormal combustion
- 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 119
- 238000002485 combustion reaction Methods 0.000 claims abstract description 70
- 230000002159 abnormal effect Effects 0.000 claims abstract description 42
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000005856 abnormality Effects 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Landscapes
- Regulation And Control Of Combustion (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
(57)【要約】
【目的】 給湯器の異常燃焼が生じたときには燃焼の停
止とともに送水の停止を行う。
【構成】 給湯器の燃焼室の排気側にＣＯセンサ14を設
ける。給湯器の燃焼運転を行う制御装置内には止水安全
制御部を形成する。この止水安全制御部は異常判断部16
と制御指令部17とを有し、異常判断部16はＣＯセンサ14
からの検出信号を受けて給湯器の燃焼状態が正常状態で
あるか異常状態であるかを判断し、異常状態と判断した
ときには異常信号を制御指令部17に加える。制御指令部
17はこの異常信号を受けて燃料開閉弁６を閉じ、燃料の
供給を遮断して燃焼の停止を行い、その一方で、止水弁
11の閉制御を行い、給湯器からの送水を停止させる。
(57) [Summary] [Purpose] When abnormal heating of the water heater occurs, the combustion is stopped and the water supply is stopped. [Structure] A CO sensor 14 is provided on the exhaust side of a combustion chamber of a water heater. A water stop safety control unit is formed in the control device that performs the combustion operation of the water heater. This water stop safety control unit is the abnormality determination unit 16
And a control command unit 17, and the abnormality determination unit 16 includes a CO sensor 14
It is determined whether the combustion state of the water heater is the normal state or the abnormal state in response to the detection signal from, and when the abnormal state is determined, the abnormal signal is added to the control command unit 17. Control command section
In response to this abnormal signal, 17 closes the fuel on-off valve 6, shuts off the fuel supply and stops combustion, while the water shut-off valve
The closing control of 11 is performed to stop the water supply from the water heater.
Description
【０００１】[0001]
本考案は、給湯器が異常燃焼したときに、燃焼停止と止水を同時に行う給湯器 の止水安全装置に関するものである。 The present invention relates to a water stop safety device for a water heater that simultaneously stops combustion and stops water when the water heater abnormally burns.
【０００２】[0002]
ガス等を燃料とする給湯器は、給水管から供給されて来る水を給湯熱交換器に 通し、ガスバーナの燃焼火力でもって給湯熱交換器を通る水を湯にして給湯管か ら浴室や台所等の所望の場所に導いている。 Water heaters that use gas, etc. as fuel, pass the water supplied from the water supply pipes through the hot water heat exchangers, and the combustion heat from the gas burner turns the water that passes through the hot water heat exchangers into hot water from the hot water pipes in the bathroom or kitchen. Etc. to the desired place.
【０００３】 しかしながら、給湯器を気密性の高い室内に設置し、給湯器を運転させている ときに、換気扇が回されて室内が負圧化したり、あるいは燃焼ファンの空気取り 入れ口に設けられるフィルタが目詰まりしたりすると、異常燃焼を起こし、特に 、一酸化炭素ガスが室内に漏れると非常に危険である。However, when the water heater is installed in a highly airtight room and the water heater is in operation, the ventilation fan is turned to create a negative pressure in the room, or it is installed in the air intake port of the combustion fan. If the filter becomes clogged, abnormal combustion will occur, especially if carbon monoxide gas leaks into the room, which is extremely dangerous.
【０００４】 このことから、例えば、給湯器の排気側に一酸化炭素ガスを検出するＣＯセン サを備え、このＣＯセンサの出力が設定基準値を越えたときに異常燃焼状態と判 断し、給湯器の燃焼停止を行う安全装置が提案されている。From this, for example, a CO sensor for detecting carbon monoxide gas is provided on the exhaust side of the water heater, and when the output of this CO sensor exceeds a set reference value, it is judged as an abnormal combustion state, A safety device for stopping the combustion of the water heater has been proposed.
【０００５】[0005]
しかしながら、例えば、給湯器の湯を浴槽に落としているような場合、異常燃 焼状態が検出されて燃焼停止が行われると、浴槽に落としていた湯が冷たい水に 変わってそのまま引き続き落とし込まれるため、浴槽内に冷たい水が溜められて しまうという問題が生じ、この場合には、一旦溜めた浴槽の水を抜いて空にして から再び湯を落とし込まなければならないという面倒が生じる。 However, for example, when the hot water of the water heater is dropped into the bathtub, if abnormal combustion is detected and combustion is stopped, the hot water dropped into the bathtub will be changed to cold water and will continue to be dropped. Therefore, there is a problem that cold water is stored in the bathtub. In this case, the trouble of having to drain the water once stored in the bathtub, empty it, and then drop the hot water again arises.
【０００６】 また、シャワーを使用していたときに、異常燃焼が検出されて燃焼停止が行わ れると、急に冷たい水が体に降り懸かるという事態になる。If abnormal combustion is detected and combustion is stopped while using a shower, cold water suddenly falls on the body.
【０００７】 本考案は上記従来の課題を解決するためになされたものであり、その目的は、 給湯器の異常燃焼が検出されたときには給湯器から冷たい水が出続けることのな い給湯器の止水安全装置を提供することにある。The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a water heater which does not continuously emit cold water when abnormal combustion of the water heater is detected. It is to provide a waterproof safety device.
【０００８】[0008]
本考案は上記目的を達成するために、次のように構成されている。すなわち、 本考案は、バーナへ燃料を供給する燃料供給通路の開閉を行う燃料開閉弁と、給 湯熱交換器に連通する管路の開閉を行う止水弁とを備えた給湯器の止水安全装置 であって、給湯器の異常燃焼を検知する異常燃焼検知センサと、この異常燃焼検 知センサの検知信号を受けて異常燃焼状態と判断したときに前記燃料開閉弁と止 水弁の閉制御を行う止水安全制御部とを有することを特徴として構成されている 。 The present invention is configured as follows to achieve the above object. That is, the present invention provides a water shutoff for a water heater including a fuel opening / closing valve for opening / closing a fuel supply passage for supplying fuel to the burner, and a water shutoff valve for opening / closing a conduit communicating with the hot water heat exchanger. The safety device is an abnormal combustion detection sensor that detects abnormal combustion of the water heater, and the fuel open / close valve and the water shutoff valve are closed when the abnormal combustion state is determined by receiving the detection signal of the abnormal combustion detection sensor. It is characterized by having a water stop safety control unit for controlling.
【０００９】[0009]
上記構成の本考案において、異常燃焼検知センサは給湯器の燃焼状態を監視し 、その燃焼状態に対応する検知信号を出力する。給湯器の異常燃焼が発生すると 、異常燃焼検知センサからの検知信号もこの異常燃焼に応じた信号となり、止水 安全制御部はこの検知信号を受けて異常燃焼が生じたものと判断し、燃料開閉弁 と止水弁をともに閉止させる。これにより、給湯器の燃焼停止が行われるととも に給湯器からの送水停止が行われる。 In the present invention having the above structure, the abnormal combustion detection sensor monitors the combustion state of the water heater and outputs a detection signal corresponding to the combustion state. When abnormal combustion of the water heater occurs, the detection signal from the abnormal combustion detection sensor also becomes a signal according to this abnormal combustion, and the water-stop safety control unit receives this detection signal and determines that abnormal combustion has occurred, Close both the on-off valve and the water shutoff valve. As a result, combustion of the water heater is stopped and water supply from the water heater is stopped.
【００１０】[0010]
以下、本考案の実施例を図面に基づいて説明する。図１には本考案に係る給湯 器の止水安全装置の一実施例の要部構成のブロック図が示され、また、図２には 同止水安全装置が組み込まれている給湯器のシステム図が示されている。これら の図において、給湯器の燃焼室１の下方側にはガスバーナ２が配設され、さらに このガスバーナ２の下側には燃焼ファン３が配設されている。この燃焼ファン３ の空気取り入れ口には塵を取り除くフィルタ（図示せず）が設けられている。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a main configuration of an embodiment of a water stop safety device for a water heater according to the present invention, and FIG. 2 is a water heater system incorporating the water stop safety device. The figure is shown. In these figures, a gas burner 2 is arranged below the combustion chamber 1 of the water heater, and a combustion fan 3 is arranged below the gas burner 2. A filter (not shown) for removing dust is provided at the air intake of the combustion fan 3.
【００１１】 前記ガスバーナ２には燃料供給通路としてのガス通路４が接続されており、こ のガス通路４には副電磁弁５と電磁弁等からなる燃料開閉弁６と、弁開量によっ てガス供給量を制御する比例弁７とが設けられている。A gas passage 4 as a fuel supply passage is connected to the gas burner 2. The gas passage 4 has a fuel opening / closing valve 6 including a sub solenoid valve 5 and a solenoid valve, and a valve opening amount. And a proportional valve 7 for controlling the gas supply amount.
【００１２】 燃焼室１の上部側には給湯熱交換器８が設けられており、この給湯熱交換器８ の入側には給水管10が接続されており、この給水管10には管路の開閉を行うギヤ モータを備えた止水弁11が設けられている。この止水弁11はギヤモータの回転量 に応じて通水断面積を可変制御し、全閉位置から全開位置の範囲内で任意に通水 水量の制御を行う。A hot water supply heat exchanger 8 is provided on the upper side of the combustion chamber 1, and a water supply pipe 10 is connected to an inlet side of the hot water supply heat exchanger 8 and a pipe line is connected to the water supply pipe 10. A water shutoff valve 11 having a gear motor that opens and closes is provided. The water stop valve 11 variably controls the water passage cross-sectional area according to the rotation amount of the gear motor, and arbitrarily controls the water passage amount within the range from the fully closed position to the fully opened position.
【００１３】 給湯熱交換器８の出側には給湯管12が接続され、この給湯管12は適宜分岐され て浴室や台所等の所望の場所に導かれている。燃焼室１の上方には排気管13が接 続されており、この排気管13を通して排気ガスが室外に排出されている。そして 、例えば排気管13の出口部分には異常燃焼検知センサとしてのＣＯセンサ14が配 設されている。A hot water supply pipe 12 is connected to the outlet side of the hot water supply heat exchanger 8, and the hot water supply pipe 12 is appropriately branched and introduced to a desired place such as a bathroom or a kitchen. An exhaust pipe 13 is connected above the combustion chamber 1, and exhaust gas is exhausted to the outside of the chamber through the exhaust pipe 13. Further, for example, a CO sensor 14 as an abnormal combustion detection sensor is provided at the outlet of the exhaust pipe 13.
【００１４】 前記副電磁弁５と、燃料開閉弁６と、比例弁７と、止水弁11と、燃焼ファン３ の各動作は制御装置15によって制御されており、この制御装置15には前記ＣＯセ ンサ14の検知信号を受けて、異常燃焼状態となったときに燃料開閉弁６と止水弁 11の閉動作を行うための止水安全制御部が組み込まれている。Each operation of the sub solenoid valve 5, the fuel opening / closing valve 6, the proportional valve 7, the water shutoff valve 11, and the combustion fan 3 is controlled by a control device 15. In response to the detection signal from the CO sensor 14, a water shutoff safety control unit for closing the fuel on-off valve 6 and the water shutoff valve 11 when an abnormal combustion state is entered is incorporated.
【００１５】 この止水安全制御部は、図１に示すように、異常判断部16と制御指令部17を有 して構成されている。異常判断部16はＣＯセンサ14からの検知信号を受け、異常 燃焼が生じたか否かを判断する。すなわち、ＣＯセンサ14は排気ガス中に含まれ るＣＯガス（一酸化炭素ガス）濃度に応じた電圧信号を出力する。異常判断部16 には予め異常燃焼状態を判断するための設定基準値が与えられており、ＣＯセン サ14の出力信号がこの設定基準値を越えたときに異常燃焼状態と判断し異常燃焼 信号を制御指令部17に加える。制御指令部17はこの異常燃焼信号を受けたときに 、止水弁11と燃料開閉弁６の閉制御を行い、給湯熱交換器８の通水停止とガス通 路４の遮断を行う。As shown in FIG. 1, this water stop safety control unit is configured to have an abnormality determination unit 16 and a control command unit 17. The abnormality determination unit 16 receives the detection signal from the CO sensor 14 and determines whether abnormal combustion has occurred. That is, the CO sensor 14 outputs a voltage signal according to the concentration of CO gas (carbon monoxide gas) contained in the exhaust gas. The abnormality judging section 16 is previously provided with a set reference value for judging an abnormal combustion state, and when the output signal of the CO sensor 14 exceeds this set reference value, it is judged as an abnormal combustion state and an abnormal combustion signal is given. Is added to the control command unit 17. When the control command unit 17 receives this abnormal combustion signal, the control command unit 17 controls the water shutoff valve 11 and the fuel on-off valve 6 to close, shuts off the hot water supply heat exchanger 8 and shuts off the gas passage 4.
【００１６】 本実施例によれば、ガスバーナ２の燃焼が異常燃焼状態となったときには、直 ちにこの異常状態がＣＯセンサ14によって検知され、このＣＯセンサ14の検知信 号によって燃料開閉弁６の閉止による燃焼停止と、止水弁11の閉止による給湯器 からの送水停止とが同時に行われることとなる。したがって、燃焼停止により一 酸化炭素ガスの発生に対する安全が図られることとなり、また、止水弁11が閉じ られることにより、例えば、浴槽に給湯器の湯を落とし込んでいるようなときに は、冷たい水が引き続き落とされることがなくなるので、冷たい水が浴槽に溜め られるという不都合はなくなる。また、給湯器の湯でシャワーを使用していると きに、異常燃焼が検知されて燃焼の停止が行われても、シャワーから冷たい水が 降り懸かるという事態も防げることとなる。According to the present embodiment, when the combustion of the gas burner 2 becomes the abnormal combustion state, this abnormal state is immediately detected by the CO sensor 14, and the fuel opening / closing valve 6 is detected by the detection signal of the CO sensor 14. Combustion is stopped by closing the water shutoff valve 11 and water supply from the water heater is stopped by closing the water shutoff valve 11. Therefore, by stopping combustion, the safety against the generation of carbon monoxide gas is achieved, and by closing the water shutoff valve 11, for example, when the hot water of the water heater is dropped into the bathtub, it becomes cold. Since the water is no longer dropped, the inconvenience of cold water pooling in the bath is eliminated. In addition, even if abnormal combustion is detected and the combustion is stopped when the shower is used with the hot water of the water heater, it is possible to prevent the situation where cold water hangs down from the shower.
【００１７】 さらに、止水弁11が閉じられて、給湯器からの送水が停止されることで、湯の 使用者はこの送水のストップにより、異常燃焼が発生したことを知ることができ 、予め与えられているマニュアルに従って、例えば、燃焼ファン３の空気取り入 れ口に設けられているフィルタの目詰まりに起因して異常燃焼が生じたものかど うか、また、換気扇が回されたことに起因する室内の負圧化によって異常燃焼が 生じたものか否か等の点検を行い、異常燃焼の原因を直ちに突き止めることがで き、正常な燃焼状態に回復することが可能となる。Further, the water stop valve 11 is closed and the water supply from the water heater is stopped, so that the user of the hot water can know that abnormal combustion has occurred due to the stop of the water supply. According to the given manual, for example, whether abnormal combustion has occurred due to clogging of the filter installed at the air intake of the combustion fan 3, or due to the ventilation fan being turned It is possible to immediately check the cause of abnormal combustion by checking whether abnormal combustion has occurred due to the negative pressure in the room, and it is possible to recover the normal combustion state.
【００１８】 なお、本考案は上記実施例に限定されることはなく、様々な実施の態様を採り 得る。例えば、上記実施例では異常燃焼検知センサをＣＯセンサ14によって構成 したが、これを例えば燃焼室１内の酸素濃度を検出するＯ2 センサによって構成 し、燃焼室１内の酸素濃度が設置基準値を越えて低下したときに異常燃焼状態と 判断し、前記燃焼停止と送水停止を行わせるようにしても良く、異常燃焼検知セ ンサは燃焼状態の異常を検知できるものであれば他の様々なセンサを用いて構成 することができる。The present invention is not limited to the above-mentioned embodiment, and various embodiments can be adopted. For example, although the abnormal combustion detection sensor is constituted by the CO sensor 14 in the above embodiment, it is constituted by, for example, an O 2 sensor for detecting the oxygen concentration in the combustion chamber 1, and the oxygen concentration in the combustion chamber 1 is set to the installation reference value. If it falls below the limit, it may be judged as an abnormal combustion state, and the combustion stop and the water supply stop may be carried out. It can be configured using a sensor.
【００１９】 また、上記実施例ではガス燃焼式給湯器を例にして説明したが、石油燃焼式の 給湯器にも適用されるものであり、さらに、単能給湯器以外に例えば追い焚き機 能を備えた複合給湯器にも適用されるものである。Further, although the gas combustion type water heater is described as an example in the above embodiment, the present invention is also applied to an oil combustion type water heater, and in addition to the single-function water heater, for example, a reheating function. It is also applied to a combined water heater equipped with.
【００２０】[0020]
本考案は、給湯器の異常燃焼が検知されたときには、燃焼停止とともに給湯器 からの送水停止を行うように構成したものであるから、この送水停止により湯の 使用者は直ちに異常燃焼が発生したことを知ることができ、その異常燃焼の発生 原因をマニュアルに従って点検することにより即座に原因を突き止めることがで き、正常な燃焼状態の回復に適切な措置を講ずることができる。 The present invention is configured such that when abnormal combustion in the water heater is detected, the combustion is stopped and the water supply from the water heater is stopped. By inspecting the cause of the abnormal combustion according to the manual, the cause can be immediately identified, and appropriate measures can be taken to recover the normal combustion state.
【００２１】 また、給湯器の湯を浴槽に落とし込んでいる途中で、あるいはシャワーの使用 中に異常燃焼が生じたときにおいても、燃焼の停止と同時に送水の停止が図られ るから、浴槽に冷たい水が溜められたり、シャワーから冷たい水が降り懸かるこ ともなく、非常に好都合である。Further, even when the hot water of the water heater is being dropped into the bathtub or when abnormal combustion occurs during use of the shower, the water supply can be stopped at the same time as the stop of the combustion, so that the bathtub is cold. It is very convenient because there is no water pool or cold water from the shower.
【図１】本考案に係る給湯器の止水安全装置の一実施例
の要部構成を示すブロック図である。FIG. 1 is a block diagram showing a main part configuration of an embodiment of a water stop safety device for a water heater according to the present invention.
【図２】同実施例の止水安全装置を備えた給湯器のシス
テム図である。FIG. 2 is a system diagram of a water heater equipped with the water shutoff safety device according to the embodiment.
２ ガスバーナ ６ 燃料開閉弁 ８ 給湯熱交換器 11 止水弁 14 ＣＯセンサ 15 制御装置 16 異常判断部 17 制御指令部 2 Gas burner 6 Fuel open / close valve 8 Hot water supply heat exchanger 11 Water stop valve 14 CO sensor 15 Control device 16 Abnormality judgment part 17 Control command part
Claims (1)
開閉を行う燃料開閉弁と、給湯熱交換器に連通する管路
の開閉を行う止水弁とを備えた給湯器の止水安全装置で
あって、給湯器の異常燃焼を検知する異常燃焼検知セン
サと、この異常燃焼検知センサの検知信号を受けて異常
燃焼状態と判断したときに前記燃料開閉弁と止水弁の閉
制御を行う止水安全制御部とを有する給湯器の止水安全
装置。1. A water shutoff safety device for a water heater, comprising a fuel opening / closing valve for opening / closing a fuel supply passage for supplying fuel to a burner, and a water shutoff valve for opening / closing a conduit communicating with a hot water heat exchanger. And an abnormal combustion detection sensor for detecting abnormal combustion of the water heater, and when the abnormal combustion state is judged by receiving the detection signal of the abnormal combustion detection sensor, the fuel on-off valve and the water shutoff valve are closed. A water stop safety device for a water heater having a water stop safety control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991089985U JP2574529Y2 (en) | 1991-10-07 | 1991-10-07 | Water heater safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991089985U JP2574529Y2 (en) | 1991-10-07 | 1991-10-07 | Water heater safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0534441U true JPH0534441U (en) | 1993-05-07 |
| JP2574529Y2 JP2574529Y2 (en) | 1998-06-18 |
Family
ID=13985948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991089985U Expired - Lifetime JP2574529Y2 (en) | 1991-10-07 | 1991-10-07 | Water heater safety device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2574529Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4730139U (en) * | 1971-05-06 | 1972-12-05 | ||
| JPH02150619A (en) * | 1988-11-29 | 1990-06-08 | Paloma Ind Ltd | Safety device for gas burner |
| JPH04108152U (en) * | 1991-02-28 | 1992-09-18 | 株式会社ガスター | combustion device |
-
1991
- 1991-10-07 JP JP1991089985U patent/JP2574529Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4730139U (en) * | 1971-05-06 | 1972-12-05 | ||
| JPH02150619A (en) * | 1988-11-29 | 1990-06-08 | Paloma Ind Ltd | Safety device for gas burner |
| JPH04108152U (en) * | 1991-02-28 | 1992-09-18 | 株式会社ガスター | combustion device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2574529Y2 (en) | 1998-06-18 |
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