JPH04108152U - combustion device - Google Patents
combustion deviceInfo
- Publication number
- JPH04108152U JPH04108152U JP1721191U JP1721191U JPH04108152U JP H04108152 U JPH04108152 U JP H04108152U JP 1721191 U JP1721191 U JP 1721191U JP 1721191 U JP1721191 U JP 1721191U JP H04108152 U JPH04108152 U JP H04108152U
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- carbon monoxide
- sensor
- concentration
- stop
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 73
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 53
- 238000001514 detection method Methods 0.000 claims abstract description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 1
- 229910002090 carbon oxide Inorganic materials 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 38
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000001408 Carbon monoxide poisoning Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Abstract
(57)【要約】
【目的】 給湯器等の燃焼装置を断続使用したときにお
いても一酸化炭素ガスの濃度を安定に検出して装置の安
全運転を図る。
【構成】 給湯器１の排気側通路６に一酸化炭素検出セ
ンサ11を設け、この検出センサ11を燃焼停止後所定期間
内通電継続し動作状態に保つ。水栓を閉めて燃焼を停止
した後、水栓を再び開いて燃焼したとき排気ガス中の一
酸化炭素濃度を安定に検出して装置の安全運転を確保す
る。
(57) [Summary] [Purpose] To stably detect the concentration of carbon monoxide gas even when a combustion device such as a water heater is used intermittently to ensure safe operation of the device. [Structure] A carbon monoxide detection sensor 11 is provided in the exhaust side passage 6 of the water heater 1, and the detection sensor 11 is kept energized for a predetermined period of time after combustion is stopped to keep it in an operating state. After the faucet is closed to stop combustion, the concentration of carbon monoxide in the exhaust gas is stably detected when the faucet is reopened and combustion occurs, ensuring safe operation of the device.
Description
【０００１】0001
本考案は例えば屋内設置型給湯器等の燃焼装置にかかわり、排気中の一酸化炭 素検出手段の改良に関するものである。 This invention relates to combustion equipment such as indoor water heaters, and is designed to reduce carbon monoxide in the exhaust gas. This invention relates to improvements in elementary detection means.
【０００２】0002
図３は一般的なガス燃焼式給湯器の模式図を示したもので、この種の給湯器１ はガスバーナ２を含む燃焼室３と、この燃焼室３の給排気を行う燃焼ファン４と 、熱交換器５と、排気筒６と、給水管７を通って給水される水の流れを検出する 水流センサ９と、給湯管８に設けられて出湯温度を検出するサーミスタ等の温度 センサ10と、ガスを燃焼するにともなって生成する一酸化炭素（ＣＯ）の濃度を 検出するＣＯセンサ11と、火炎を検知する給湯フレームロッド16と、図示されて いない制御装置とを有している。この制御装置は給湯器１の水栓（図示せず）が 開けられて給水管７に水が供給されたときに、水流センサ９の水流検出信号を受 けて燃焼ファン４を回転しながらガスバーナ２の燃焼点火を行い、熱交換器５で 加熱された湯水を給湯管８を通して、台所や浴室あるいは洗面台等所望の場所に 供給制御する。屋内設置型のこの種のガス燃焼式の給湯器１では、従来から設備 の設置不良等によって排気中の一酸化炭素が異常増加し、これが室内に漏れる等 して一酸化炭素中毒事故の恐れもあって問題視されている。このため一酸化炭素 濃度の検出可能な一酸化炭素検出センサ（ＣＯセンサ11）を燃焼装置１の排気通 路６に設けて、このＣＯセンサ11によって一酸化炭素の濃度を測定して異常を検 知するようにした燃焼装置が提案されている。 Figure 3 shows a schematic diagram of a typical gas combustion water heater. A combustion chamber 3 including a gas burner 2 and a combustion fan 4 for supplying and exhausting the combustion chamber 3. , detect the flow of water supplied through the heat exchanger 5, the exhaust pipe 6, and the water supply pipe 7. Temperature of water flow sensor 9 and thermistor etc. installed in hot water supply pipe 8 to detect hot water temperature sensor 10 and the concentration of carbon monoxide (CO) produced as the gas is combusted. A CO sensor 11 for detecting a flame and a hot water heater flame rod 16 for detecting a flame are shown in the figure. It has no control device. This control device controls the faucet of water heater 1 (not shown). When the water supply pipe 7 is opened and water is supplied, the water flow detection signal from the water flow sensor 9 is received. Then, the combustion fan 4 is rotated to ignite combustion in the gas burner 2, and the heat exchanger 5 The heated hot water is passed through the hot water pipe 8 and delivered to the desired location such as the kitchen, bathroom, or sink. Control supply. This type of gas-fired water heater 1 installed indoors has traditionally been equipped with Due to poor installation, etc., carbon monoxide in the exhaust air increases abnormally, which leaks into the room. This is considered a problem due to the risk of carbon monoxide poisoning accidents. Therefore, carbon monoxide A carbon monoxide detection sensor (CO sensor 11) capable of detecting concentration is installed in the exhaust vent of the combustion device 1. This CO sensor 11 measures the concentration of carbon monoxide and detects abnormalities. A combustion device has been proposed that is designed to be aware of the
【０００３】 しかるにこの種のＣＯセンサ11は周知のように、耐久性に乏しく、したがって 、ＣＯセンサ11は常時通電での使用では長期間の使用に耐えない。このことから 、給湯器１の燃焼動作に連動させてガス燃焼中にのみＣＯセンサ11に通電する（ 動作する）方式が取られている。0003 However, as is well known, this type of CO sensor 11 has poor durability, and therefore , the CO sensor 11 cannot withstand long-term use if it is constantly energized. From this , energizes the CO sensor 11 only during gas combustion in conjunction with the combustion operation of the water heater 1 ( A method that works) has been adopted.
【０００４】0004
給湯器１の使用形態として、例えば、洗顔や洗髪や台所での食器洗い等、湯を 断続使用することが頻繁に行われている。このような場合にはＣＯセンサ11も給 湯器１の断続燃焼に連動して短時間のうちに断続通電が繰り返される。 The water heater 1 can be used, for example, for washing your face, hair, washing dishes in the kitchen, etc. Frequently used intermittently. In such a case, the CO sensor 11 should also be supplied. In conjunction with the intermittent combustion of the water heater 1, intermittent energization is repeated within a short period of time.
【０００５】 ところが、この種のＣＯセンサ11は立ち上がり特性の安定性が悪く、ＣＯセン サ11を安定に検出できるようになるには比較的長い時間を要する。かかる状態の もとで、給湯器１の断続燃焼を行うと、ＣＯセンサ11が不安定な状態での短時間 燃焼がくり返し行われることとなり、一酸化炭素ガスが異常に増加しているにも かかわらず、これを検出できずに、安全装置を作動することができないという問 題がある。[0005] However, this type of CO sensor 11 has poor stability in startup characteristics, making it difficult to use as a CO sensor. It takes a relatively long time to be able to stably detect the sensor 11. in such a state Under this condition, if intermittent combustion is performed in the water heater 1, the CO sensor 11 will be activated for a short period of time in an unstable state. Combustion will occur repeatedly, and carbon monoxide gas will increase abnormally. However, the problem is that it cannot be detected and the safety device cannot be activated. There is a problem.
【０００６】 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 湯器等の燃焼装置を断続使用したときにおいても、一酸化炭素ガスの濃度を安定 に検出して装置の安全動作を図ることができる燃焼装置を提供することにある。[0006] This invention was devised to solve the above-mentioned conventional problems, and its purpose is to Stabilizes the concentration of carbon monoxide gas even when a combustion device such as a water heater is used intermittently It is an object of the present invention to provide a combustion device that can detect and ensure safe operation of the device.
【０００７】[0007]
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、装置燃焼の燃焼動作に連動動作して一酸化炭素の濃度を検出する一酸化 炭素検出センサを排気通路側に設け、当該一酸化炭素検出センサが設定基準以上 の一酸化炭素濃度を検出したときに燃焼停止の安全手段を作動させる燃焼装置に おいて、装置燃焼動作の停止を検出する燃焼停止検出部と、この燃焼停止検出部 が装置燃焼の停止を検出したときに所定時間前記一酸化炭素検出センサを動作状 態に保つセンサ制御部とを有することを特徴として構成されている。 In order to achieve the above object, the present invention is constructed as follows. i.e. book The idea is to detect the concentration of carbon monoxide by operating in conjunction with the combustion operation of the device. A carbon detection sensor is installed on the exhaust passage side, and the carbon monoxide detection sensor exceeds the set standard. Combustion equipment that activates safety measures to stop combustion when carbon monoxide concentration is detected. a combustion stop detection unit that detects the stop of the combustion operation of the device; The carbon monoxide detection sensor is activated for a predetermined period of time when the device detects that combustion has stopped. The structure is characterized in that it has a sensor control section that maintains the state.
【０００８】[0008]
燃焼装置が燃焼している状態で、その燃焼が停止されたときには、燃焼停止検 出部はその燃焼停止を検出し、その検出信号をセンサ制御部に加える。 If combustion is stopped while the combustion device is burning, a combustion stop inspection is performed. The output section detects the combustion stop and applies the detection signal to the sensor control section.
【０００９】 センサ制御部はその検出信号を受けて一酸化炭素センサに所定時間動作信号を 加え続ける。一酸化炭素センサはこの動作信号を受けて安定状態をひき続き保ち 、次に燃焼が開始されたときの一酸化炭素濃度の検出に備える。[0009] The sensor control section receives the detection signal and sends an operation signal to the carbon monoxide sensor for a predetermined period of time. Keep adding. The carbon monoxide sensor receives this operating signal and continues to maintain a stable state. , in preparation for detecting the carbon monoxide concentration when combustion starts next.
【００１０】0010
以下、本考案の実施例を図面に基づいて説明する。なお、本実施例の説明にお いて、従来例と同一の部分には同一符号を付し、その詳細な重複説明は省略する 。 Hereinafter, embodiments of the present invention will be described based on the drawings. In addition, in the explanation of this example, The same parts as in the conventional example are given the same reference numerals, and detailed redundant explanations are omitted. .
【００１１】 図１に本考案の一実施例の燃焼装置を構成する制御装置の要部構成のブロック 図が示されている。本実施例の制御装置は燃焼運転制御部17と、燃焼停止検出部 15と、センサ制御部12とを有している。燃焼運転制御部17は運転スイッチからの 燃焼運転信号を受けて給湯器１のガスバーナ２の点火燃焼等の燃焼運転の制御を 行う。燃焼停止検出部15はフレームロッド16（図３）から燃焼停止信号を受けて センサ制御部12にその信号を加える。制御・指令部13は遅延タイマ14へ、所定時 間Ｔのタイマ動作を指令する。このＴの時間は燃焼後もＣＯセンサ11を安定に動 作させておく時間を意味し、本実施例では給湯器１を断続使用する際に、燃焼が 停止してから次に燃焼が開始するまでのＣＯセンサ11の通電時間を余裕をもって 設定するもので、例えば５分の時間が設定される。[0011] Figure 1 shows a block diagram of the main components of a control device that constitutes a combustion device according to an embodiment of the present invention. A diagram is shown. The control device of this embodiment includes a combustion operation control section 17 and a combustion stop detection section. 15 and a sensor control section 12. Combustion operation control section 17 is controlled by the operation switch. Upon receiving the combustion operation signal, control the combustion operation such as ignition combustion of the gas burner 2 of the water heater 1. conduct. The combustion stop detection unit 15 receives a combustion stop signal from the flame rod 16 (Fig. 3). The signal is applied to the sensor control section 12. The control/command unit 13 sends a signal to the delay timer 14 at a predetermined time. Commands timer operation for interval T. This T period allows the CO sensor 11 to operate stably even after combustion. In this embodiment, when the water heater 1 is used intermittently, the combustion Allow enough time for the CO sensor 11 to be energized from the time it stops until the next combustion starts. For example, a time of 5 minutes is set.
【００１２】 本実施例は上記のように構成されており、次に図２のフローチャートに基づき 一酸化炭素検出の制御動作の一例を説明する。ステップ101 で燃焼装置電源がオ ンされ、ステップ102 で給湯器１の水栓が開かれると水流センサ９によって給水 管７の水の流れが検出され、この信号を受けて、ガスバーナ２の点火燃焼が開始 される。ステップ103 で燃焼中が確認されると同時にセンサ制御部12を介してス テップ104 でＣＯセンサ11に通電が開始され同センサ11が動作状態となる。ステ ップ103 で給湯を中断し、水栓が閉じられると水流センサ９はオフ信号を出力す る。この信号によってガスバーナ２が燃焼停止すると、給湯フレームロッド電極 16から燃焼停止検出信号が燃焼停止検出部15を通じてセンサ制御部12に加えられ る。制御指令部13はこの信号を受けて遅延タイマ14に所定時間のタイマ動作を指 令し、同時にＣＯセンサ11に対してひき続きオン信号（動作信号）を供給する。 制御・指令部13はステップ105 でタイマの遅延時間（タイマの設定時間）が経過 したか否かを判断する。タイマ14から所定時間経過のタイムアップ信号が加えら れないうちは時間が経過していないものと判断し、ＣＯセンサ11への通電を継続 する。この通電によって、ＣＯセンサ11は一酸化炭素ガスの濃度を安定に検出で きる状態を保っている。これに対しタイムアップ信号がタイマ14から加えられた ときに制御・指令部13はタイマ遅延の所定時間が経過したものと判断しステップ 106 でＣＯセンサ11への通電を停止する。0012 This embodiment is configured as described above, and then based on the flowchart of FIG. An example of control operation for carbon monoxide detection will be explained. The combustor power is turned on in step 101. When the tap of the water heater 1 is opened in step 102, water is supplied by the water flow sensor 9. The flow of water in the pipe 7 is detected, and upon receiving this signal, ignition combustion of the gas burner 2 starts. be done. At the same time as it is confirmed that combustion is in progress in step 103, the In step 104, the CO sensor 11 starts to be energized, and the sensor 11 becomes operational. Ste When water supply is interrupted at step 103 and the faucet is closed, water flow sensor 9 outputs an off signal. Ru. When the gas burner 2 stops combustion due to this signal, the hot water supply flame rod electrode A combustion stop detection signal from 16 is applied to the sensor control unit 12 through the combustion stop detection unit 15. Ru. Upon receiving this signal, the control command unit 13 instructs the delay timer 14 to operate for a predetermined time. At the same time, an ON signal (operation signal) is continuously supplied to the CO sensor 11. In step 105, the control/command unit 13 determines that the timer delay time (timer setting time) has elapsed. decide whether or not. A time-up signal is added from timer 14 when a predetermined period of time has elapsed. If it does not, it is assumed that no time has elapsed, and the CO sensor 11 continues to be energized. do. This energization allows the CO sensor 11 to stably detect the concentration of carbon monoxide gas. It remains in good condition. In response, a time-up signal was added from timer 14. When the control/command unit 13 determines that the predetermined time of the timer delay has elapsed, the step At step 106, power supply to the CO sensor 11 is stopped.
【００１３】 本実施例によれば予め設定された所定時間ではＣＯセンサ11が一酸化炭素ガス の濃度を安定に検出するので、一酸化炭素ガス濃度が設定基準以上の濃度を検出 したとき直ちに燃焼停止の制御・指令を行い安全装置を作動して安全を確保する 。したがって給湯器１を断続運転したときにもＣＯセンサ11の通電は継続され定 常状態であるので排気ガス中の一酸化炭素ガスの濃度は安定に検出され燃焼装置 １の正常運転が行われる。[0013] According to this embodiment, the CO sensor 11 detects carbon monoxide gas at a predetermined time set in advance. Since it stably detects the concentration of carbon monoxide gas, it detects the concentration of carbon monoxide gas that exceeds the set standard. When this happens, immediately control and command the combustion stop and activate the safety device to ensure safety. . Therefore, even when the water heater 1 is operated intermittently, the CO sensor 11 continues to be energized and remains constant. Since it is in a normal state, the concentration of carbon monoxide gas in the exhaust gas is stably detected and the combustion equipment 1 normal operation is performed.
【００１４】 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燃焼停止の検出を給湯フレームロッド電極16の信号 を利用して検出したが、図３のフローセンサ９の信号を利用して検出してもよい 。[0014] It should be noted that the present invention is not limited to the above embodiments, and may be implemented in various ways. obtain. For example, in the above embodiment, combustion stoppage is detected by the signal from the hot water supply flame rod electrode 16. Although the detection was performed using the flow sensor 9, the signal from the flow sensor 9 in FIG. .
【００１５】 また、上記実施例では、燃焼装置をガス燃焼式の給湯器を例にして説明したが 、本考案は石油燃焼式の燃焼装置にも適用されるものである。[0015] In addition, in the above embodiment, the combustion device was explained using a gas combustion type water heater as an example. The present invention is also applicable to oil-fired combustion devices.
【００１６】[0016]
本考案は燃焼装置の排気通路側に一酸化炭素ガスの濃度を検出する一酸化炭素 検出センサを設け、燃焼停止と同時に予め設定された所定時間、一酸化炭素検出 センサを安定状態に保つように構成したから、燃焼停止後、所定時間内で再び点 火燃焼が開始されても排気ガス中の一酸化炭素ガス濃度は安定に検出され燃焼装 置を安全に運転させることができる。 This invention detects the concentration of carbon monoxide gas on the exhaust passage side of combustion equipment. A detection sensor is installed to detect carbon monoxide for a preset period of time at the same time as combustion stops. Since the sensor is configured to maintain a stable state, it will turn on again within a predetermined time after combustion stops. Even when fire combustion starts, the carbon monoxide gas concentration in the exhaust gas is stably detected and the combustion equipment The equipment can be operated safely.
【図１】本考案の一実施例を構成する制御装置の要部部
分のブロック図である。FIG. 1 is a block diagram of essential parts of a control device constituting an embodiment of the present invention.
【図２】本実施例の一酸化炭素検出センサの検出制御動
作の一例を示すフローチャートである。FIG. 2 is a flowchart showing an example of the detection control operation of the carbon monoxide detection sensor of this embodiment.
【図３】給湯器の機械的構造の模式図である。FIG. 3 is a schematic diagram of the mechanical structure of the water heater.
１ 給湯器 ２ ガスバーナ ３ 燃焼室 ４ 燃焼ファン 11 一酸化炭素検出センサ 16 給湯フレームロッド電極 1 Water heater 2 Gas burner 3 Combustion chamber 4 Combustion fan 11 Carbon monoxide detection sensor 16 Hot water heater frame rod electrode
Claims (1)
化炭素の濃度を検出する一酸化炭素検出センサを排気通
路側に設け、当該一酸化炭素検出センサが設定基準以上
の一酸化炭素濃度を検出したときに燃焼停止の安全手段
を作動させる燃焼装置において、装置燃焼動作の停止を
検出する燃焼停止検出部と、この燃焼停止検出部が装置
燃焼の停止を検出したときに所定時間前記一酸化炭素検
出センサを動作状態に保つセンサ制御部とを有する燃焼
装置。Claim 1: A carbon monoxide detection sensor that operates in conjunction with the combustion operation of the device combustion to detect the concentration of carbon monoxide is provided on the exhaust passage side, and the carbon monoxide detection sensor detects the concentration of carbon monoxide above a set standard. A combustion apparatus that activates a combustion stop safety means when detecting a combustion stop detecting section that detects a stop of the combustion operation of the device, and a combustion stop detecting section that activates a safety means for stopping combustion when the combustion stop detecting section detects a stop of combustion of the device, A combustion device having a sensor control section that maintains a carbon oxide detection sensor in an operating state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1721191U JP2556804Y2 (en) | 1991-02-28 | 1991-02-28 | Combustion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1721191U JP2556804Y2 (en) | 1991-02-28 | 1991-02-28 | Combustion equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04108152U true JPH04108152U (en) | 1992-09-18 |
| JP2556804Y2 JP2556804Y2 (en) | 1997-12-08 |
Family
ID=31904001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1721191U Expired - Lifetime JP2556804Y2 (en) | 1991-02-28 | 1991-02-28 | Combustion equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2556804Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534441U (en) * | 1991-10-07 | 1993-05-07 | 株式会社ガスター | Water stop safety device for water heater |
| JPH07103471A (en) * | 1993-09-30 | 1995-04-18 | Rinnai Corp | Incompete combustion detecting device for combustion instrument |
| US8850719B2 (en) | 2009-02-06 | 2014-10-07 | Nike, Inc. | Layered thermoplastic non-woven textile elements |
| US9227363B2 (en) | 2009-02-06 | 2016-01-05 | Nike, Inc. | Thermoplastic non-woven textile elements |
| JP2016200281A (en) * | 2015-04-07 | 2016-12-01 | リンナイ株式会社 | Combustion safety controller |
-
1991
- 1991-02-28 JP JP1721191U patent/JP2556804Y2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534441U (en) * | 1991-10-07 | 1993-05-07 | 株式会社ガスター | Water stop safety device for water heater |
| JPH07103471A (en) * | 1993-09-30 | 1995-04-18 | Rinnai Corp | Incompete combustion detecting device for combustion instrument |
| US8850719B2 (en) | 2009-02-06 | 2014-10-07 | Nike, Inc. | Layered thermoplastic non-woven textile elements |
| US9227363B2 (en) | 2009-02-06 | 2016-01-05 | Nike, Inc. | Thermoplastic non-woven textile elements |
| JP2016200281A (en) * | 2015-04-07 | 2016-12-01 | リンナイ株式会社 | Combustion safety controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2556804Y2 (en) | 1997-12-08 |
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