JPH0949628A - Control device for combustion apparatus - Google Patents
Control device for combustion apparatusInfo
- Publication number
- JPH0949628A JPH0949628A JP7200832A JP20083295A JPH0949628A JP H0949628 A JPH0949628 A JP H0949628A JP 7200832 A JP7200832 A JP 7200832A JP 20083295 A JP20083295 A JP 20083295A JP H0949628 A JPH0949628 A JP H0949628A
- Authority
- JP
- Japan
- Prior art keywords
- air
- combustion
- fuel ratio
- ignition
- unit
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/14—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermo-sensitive resistors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、温風暖房機等の
燃焼器具の制御装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a combustion appliance such as a hot air heater.
【０００２】[0002]
【従来の技術】従来より温風暖房機等の燃焼器具では、
通常燃焼時において、燃焼中の有害な排気ガスを抑制す
るため、最適な燃焼状態を保持するように燃焼用空気と
燃料の量を制御している。このような燃焼器具の場合、
通常燃焼時に最適な空気量と燃焼量の比（空燃比）で
は、着火時、リフト傾向になり、着火性が悪いため、そ
の対策として、着火時のみ空燃比の設定を下げて、着火
後は通常燃焼に移行するように制御しているものがあ
る。2. Description of the Related Art Conventionally, in combustion appliances such as warm air heaters,
During normal combustion, in order to suppress harmful exhaust gas during combustion, the amounts of combustion air and fuel are controlled so as to maintain an optimum combustion state. In the case of such a burning appliance,
At the optimum air-fuel ratio (air-fuel ratio) during normal combustion, there is a tendency to lift during ignition and the ignitability is poor.As a countermeasure, lower the air-fuel ratio only during ignition, and after ignition, Some are controlled so as to shift to normal combustion.
【０００３】また、特公平６−２９６６９号公報に示さ
れた燃焼器具の制御装置のように、通常燃焼時とは異な
る空燃比に設定した複数の着火時空気量・燃焼量設定部
を設け、運転開始時もしくは運転開始から所定時間後の
間で、燃焼部の温度を検出する温度検出装置から得られ
る信号に基づいて、前記いずれか１つの着火時空気量・
燃焼量設定を選択するものがある。この装置の場合、着
火時には燃焼部の温度に応じた最適な空燃比を選択して
着火を行うため、燃焼部の温度が冷えた状態はもとよ
り、再着火時の燃焼部の温度が高い場合においても、最
適な着火条件が得られ、通常の状態では着火時の未燃ガ
ス発生やイエロー燃焼を起こすことがない。Further, as in the control device for a combustion appliance disclosed in Japanese Patent Publication No. 6-29669, a plurality of ignition air amount / combustion amount setting units set to air-fuel ratios different from those in normal combustion are provided, At the start of operation or during a predetermined time after the start of operation, based on a signal obtained from a temperature detection device that detects the temperature of the combustion part, any one of the above-mentioned ignition air amount
There are some that select the combustion amount setting. In the case of this device, since the optimum air-fuel ratio according to the temperature of the combustion part is selected at the time of ignition to perform ignition, not only when the temperature of the combustion part is cold, but also when the temperature of the combustion part at the time of re-ignition is high However, optimal ignition conditions are obtained, and under normal conditions, no unburned gas generation or yellow combustion occurs during ignition.
【０００４】しかしながら、上記従来の構成では、通常
の使用状態での着火性をよくするために、予め着火時の
空燃比を下げているため、例えば高地などの空気の密度
の小さい場所での使用や燃焼用空気供給路にホコリなど
が付着し空気量が少なくなった状態で使用した場合は、
着火時の空燃比がさらに小さくなり、イエロー燃焼によ
って着火する。通常、炎に流れる炎電流の大小によって
着火を検知しているが、イエロー燃焼で着火した場合は
炎電流が少ないため、着火を検知することができず、安
全装置が働いて着火動作を停止してしまい、燃焼を継続
することができない。However, in the above-mentioned conventional structure, the air-fuel ratio at the time of ignition is lowered in advance in order to improve the ignitability in a normal use state, so that the air-fuel ratio is used in a place where the air density is low, such as in highlands. If you use the product in a state where the amount of air has decreased due to dust etc. adhering to the
The air-fuel ratio at the time of ignition becomes even smaller, and ignition occurs due to yellow combustion. Normally, ignition is detected based on the magnitude of the flame current flowing in the flame, but when ignition occurs due to yellow combustion, the flame current is too small to detect ignition, and the safety device works to stop the ignition operation. Therefore, the combustion cannot be continued.
【０００５】また、着火を検知した場合においても、所
定時間が経過するまでは通常燃焼時の空燃比にならない
ため、この間、イエロー燃焼を継続し、有害ガスを排出
したり、悪臭を発生させる等の問題点があった。Further, even when ignition is detected, the air-fuel ratio at the time of normal combustion does not reach until a predetermined time elapses, so yellow combustion is continued during this time, harmful gas is discharged, and a bad smell is generated. There was a problem.
【０００６】この発明は、上記のような問題点を解消す
るためになされたもので、通常の使用状態のみならず、
高地での使用や燃焼用空気供給路にホコリが付着した場
合においても、確実に着火検知を行うとともに、最適な
燃焼が行える燃焼器具の制御装置を得ることを目的とし
ている。The present invention has been made in order to solve the above problems, and is not limited to the normal use state,
It is an object of the present invention to provide a control device for a combustion device that can reliably perform ignition detection and can perform optimal combustion even when used at high altitudes or when dust adheres to the combustion air supply passage.
【０００７】[0007]
【課題を解決するための手段】本発明による燃焼器具の
制御装置は、燃焼部と、この燃焼部に燃料を供給する燃
料供給手段と、前記燃焼部へ燃焼用空気を供給する燃焼
用空気供給手段と、この燃焼用空気供給手段と前記燃料
供給手段を制御して燃焼を行わせる燃焼制御部と、前記
燃焼部に炎が形成されると着火検知信号を出力する着火
検知手段とからなり、前記燃焼制御部は着火動作に関連
してスタートし、所定時間が経過すると信号を出力する
タイマー部と、着火時の空燃比を通常燃焼中の空燃比と
は異なる値に設定する空燃比設定部と、前記着火検知信
号または前記タイマー部からの信号のどちらか早い方の
信号が入力された時点で前記空燃比設定部の着火時の空
燃比を変更する着火空燃比変更手段とを備えたものであ
る。According to the present invention, there is provided a control device for a combustion instrument, which comprises a combustion section, fuel supply means for supplying fuel to the combustion section, and combustion air supply for supplying combustion air to the combustion section. Means, a combustion control unit for controlling the combustion air supply unit and the fuel supply unit to perform combustion, and an ignition detection unit for outputting an ignition detection signal when a flame is formed in the combustion unit, The combustion control unit starts in association with ignition operation, and outputs a signal when a predetermined time has elapsed, and an air-fuel ratio setting unit that sets the air-fuel ratio at ignition to a value different from the air-fuel ratio during normal combustion. And an ignition air-fuel ratio changing means for changing the air-fuel ratio at the time of ignition of the air-fuel ratio setting unit when the earlier of the ignition detection signal and the signal from the timer unit is input. Is.
【０００８】また、前記空燃比設定部は複数段の着火時
空燃比を有し、前記着火空燃比変更手段は、着火検知信
号が入力されない場合、前記タイマー部のカウント値に
基づいて順次空燃比を変更するようにしたものである。Further, the air-fuel ratio setting unit has a plurality of stages of air-fuel ratios during ignition, and the ignition air-fuel ratio changing unit sequentially adjusts the air-fuel ratio based on the count value of the timer unit when the ignition detection signal is not input. It was changed.
【０００９】[0009]
実施例１．以下、本発明の一実施例について、図１の制
御装置のブロック図と図２の構成図を参照しながら説明
する。図１，図２において、１は燃焼部、２はこの燃焼
部１に燃料を供給する燃料供給手段としての電磁ポン
プ、３は上記燃焼部１に燃焼用空気を供給する燃焼用空
気供給手段としての燃焼用送風機、４は点火手段として
のイグナイタ、５は炎６に流れる炎電流を検知する着火
検知手段としてのフレームロッドである。Embodiment 1 FIG. An embodiment of the present invention will be described below with reference to the block diagram of the control device of FIG. 1 and the configuration diagram of FIG. In FIGS. 1 and 2, 1 is a combustion section, 2 is an electromagnetic pump as a fuel supply means for supplying fuel to the combustion section 1, and 3 is a combustion air supply means for supplying combustion air to the combustion section 1. The combustion blower, 4 is an igniter as an ignition means, and 5 is a frame rod as an ignition detection means for detecting a flame current flowing in the flame 6.
【００１０】７は上記電磁ポンプ２，燃焼用送風機３，
イグナイタ４等を制御し、燃焼を行うための燃焼制御部
であり、燃焼用空気量と燃焼量の比を設定して電磁ポン
プ２と燃焼用送風機３を制御する空燃比設定部７ａと、
着火動作を開始すると同時にカウントをスタートするタ
イマー部７ｂと、このタイマー部７ｂからの信号とフレ
ームロッド５からの信号のどちらか早い方の信号により
空燃比設定部７ａの着火時空燃比を変更する着火空燃比
変更手段７ｃなどを有しており、運転スイッチ８により
運転を開始する。また、燃焼部１は炎６を形成するバー
ナヘッド１ａと、液体燃料を気化するための気化部１ｂ
と、気化部１ｂを加熱するためのヒータ１ｃから構成さ
れている。Reference numeral 7 is the electromagnetic pump 2, the blower 3 for combustion,
A combustion control unit for controlling the igniter 4 and the like to perform combustion, and an air-fuel ratio setting unit 7a for setting the ratio of the combustion air amount and the combustion amount to control the electromagnetic pump 2 and the combustion blower 3,
A timer section 7b that starts counting at the same time as starting the ignition operation, and an ignition that changes the air-fuel ratio at ignition of the air-fuel ratio setting section 7a by the signal from the timer section 7b or the signal from the frame rod 5, whichever is earlier. It has an air-fuel ratio changing means 7c and the like, and the operation is started by the operation switch 8. Further, the combustion section 1 includes a burner head 1a forming a flame 6 and a vaporization section 1b for vaporizing liquid fuel.
And a heater 1c for heating the vaporization section 1b.
【００１１】図３は上記制御装置の電気回路図である。
図３において、９は商用電源、７はマイクロコンピュー
タ等からなる燃焼制御部であり、この燃焼制御部７には
ヒータ１ｃへの通電を入切するリレー接点１０ｂのリレ
ーコイル１０ａ、イグナイタ４への通電を入切するリレ
ー接点１１ｂのリレーコイル１１ａ、燃焼用送風機３を
位相制御するための発光素子１２ａとホトトライアック
１２ｂからなるソリッドステートリレー（以下、ＳＳＲ
という）１２、電磁ポンプ２を駆動させるためのドライ
バー１３が接続されている。また、上記燃焼制御部７に
は運転スイッチ８，フレームロッド５の信号が入力され
る。FIG. 3 is an electric circuit diagram of the control device.
In FIG. 3, 9 is a commercial power source, and 7 is a combustion control unit composed of a microcomputer or the like. In this combustion control unit 7, relay coil 10a of relay contact 10b for turning on / off power to heater 1c and igniter 4 are connected. A solid-state relay (hereinafter referred to as SSR) including a relay coil 11a of a relay contact 11b for turning on and off electricity, a light emitting element 12a for phase-controlling the blower 3 for combustion, and a phototriac 12b.
12), and a driver 13 for driving the electromagnetic pump 2 is connected. Further, signals from the operation switch 8 and the flame rod 5 are input to the combustion control unit 7.
【００１２】次に、上記構成において、図４の制御フロ
ーチャートを参照しながら動作について説明する。ま
ず、運転スイッチ８をオンすると（ステップ２０）、燃
焼制御部７はリレーコイル１０ａに通電してリレー接点
１０ｂを閉じ、ヒータ１ｃに通電して気化部１ｂの予熱
を開始する（ステップ２１）。予熱が完了すると、燃焼
制御部７内の空燃比設定部７ａにて第１の着火時空燃比
が設定され（ステップ２２）、この設定された空燃比に
なるようＳＳＲ１２に通電して燃焼用送風機３を回転さ
せ（ステップ２３）、プレパージを開始する。Next, the operation of the above configuration will be described with reference to the control flowchart of FIG. First, when the operation switch 8 is turned on (step 20), the combustion control unit 7 energizes the relay coil 10a to close the relay contact 10b, and energizes the heater 1c to start preheating of the vaporization unit 1b (step 21). When the preheating is completed, the first air-fuel ratio at ignition is set by the air-fuel ratio setting unit 7a in the combustion control unit 7 (step 22), and the SSR 12 is energized so that the set air-fuel ratio becomes the set air-fuel ratio. Is rotated (step 23) to start pre-purge.
【００１３】燃焼用送風機３はＳＳＲ１２の位相角を変
更することにより、設定された回転数になるように制御
される。通常、着火時の空燃比は着火性をよくするた
め、通常燃焼時の空燃比よりやや小さく設定する。例え
ば、通常燃焼時、燃焼量２５００Ｋｃａｌ／ｈ、燃焼用
送風機送風機３の回転数１９００ｒｐｍに設定されてい
るとしたら、着火時の設定は燃焼用送風機３の回転数の
み１８００ｒｐｍに設定する。 また、燃焼用送風機３
の回転数はそのままにして燃焼量のみ変更しても良い。The combustion blower 3 is controlled so as to have a set rotational speed by changing the phase angle of the SSR 12. Usually, the air-fuel ratio at the time of ignition is set to be slightly smaller than the air-fuel ratio at the time of normal combustion in order to improve the ignitability. For example, if the combustion amount is 2500 Kcal / h and the rotation speed of the combustion blower blower 3 is 1900 rpm during normal combustion, only the rotation speed of the combustion blower 3 is set to 1800 rpm during ignition. Also, the blower 3 for combustion
It is also possible to change only the combustion amount while keeping the number of revolutions of.
【００１４】プレパージが完了すると（ステップ２
４）、リレーコイル１１ａに通電してリレー接点１１ｂ
を閉じ、イグナイタ４をオンするとともに、ドライバー
１３を介して電磁ポンプ２をオンし、同時に燃焼制御部
７内のタイマー部７ｂがカウントを開始する（ステップ
２５）。電磁ポンプ２がオンして灯油等の液体燃料が気
化部１ｂに供給されると、高温のため、気化ガスにな
り、この気化ガスがバーナヘッド１ａに到達したとき、
イグナイタ４のスパークにより着火する。炎６が形成さ
れると、フレームロッド５からバーナヘッド１ａに炎電
流が流れる。この炎電流の大きさは空燃比によって変わ
り、イエロー燃焼やリフト燃焼の時は最適な燃焼状態に
比べて小さくなる。When the pre-purge is completed (step 2
4), energize the relay coil 11a to relay contact 11b
Is closed, the igniter 4 is turned on, the electromagnetic pump 2 is turned on via the driver 13, and at the same time, the timer unit 7b in the combustion control unit 7 starts counting (step 25). When the electromagnetic pump 2 is turned on and the liquid fuel such as kerosene is supplied to the vaporizing section 1b, it becomes vaporized gas due to the high temperature, and when this vaporized gas reaches the burner head 1a,
Igniter 4 sparks to ignite. When the flame 6 is formed, a flame current flows from the frame rod 5 to the burner head 1a. The magnitude of this flame current changes depending on the air-fuel ratio, and becomes smaller in yellow combustion and lift combustion than in the optimum combustion state.
【００１５】炎電流が所定値以上になると、燃焼制御部
７は着火検知し（ステップ２６）、リレーコイル１１ａ
の通電を停止してイグナイタ４をオフする（ステップ２
７）。着火検知すると、燃焼制御部７内の着火時空燃比
変更手段７ｃから空燃比設定部７ａに信号が送られ、第
２の着火時空燃比に設定され（ステップ２８）、ＳＳＲ
１２が位相制御して燃焼用送風機３の設定回転数が変更
され（ステップ２９）、例えば、１８００ｒｐｍから１
８５０ｒｐｍに変更される。When the flame current exceeds a predetermined value, the combustion control section 7 detects ignition (step 26) and the relay coil 11a.
Power to the igniter 4 to turn off (step 2
7). When the ignition is detected, a signal is sent from the ignition air-fuel ratio changing means 7c in the combustion control unit 7 to the air-fuel ratio setting unit 7a to set the second ignition air-fuel ratio (step 28), and the SSR is set.
12 controls the phase to change the set rotational speed of the blower 3 for combustion (step 29), for example, from 1800 rpm to 1
It is changed to 850 rpm.
【００１６】タイマー部７ｂのカウント値が３０秒経過
すると（ステップ３０）、空燃比設定部７ａは通常燃焼
時の設定値に変更され（ステップ３１）、燃焼用送風機
３の設定回転数が１８５０ｒｐｍから１９００ｒｐｍに
変更される。このように、着火後、すぐに通常燃焼時の
空燃比設定にしないで、しばらく第２の着火時空燃比で
燃焼させるので、着火直後は燃焼部１や気化ガスの温度
が低いために、やや空燃比を下げて燃焼させても、徐々
に空燃比を上げることにより回転数変更時のイエロー燃
焼の発生を抑えることができる。When the count value of the timer section 7b has passed 30 seconds (step 30), the air-fuel ratio setting section 7a is changed to the set value for normal combustion (step 31), and the set rotational speed of the combustion blower 3 is changed from 1850 rpm. It is changed to 1900 rpm. In this way, after the ignition, the air-fuel ratio at the normal combustion is not set immediately, but the air is burned at the second ignition air-fuel ratio for a while. Even if the fuel is burned at a reduced fuel ratio, it is possible to suppress the occurrence of yellow combustion when the rotational speed is changed by gradually increasing the air-fuel ratio.
【００１７】次に、例えば高地等で使用したり、燃焼用
空気供給路にホコリ等が付着した場合、空気の密度や量
が少なくなるため、イエロー燃焼になり、炎電流が所定
値まで達しないことがある。このとき、着火動作と共に
スタートしたタイマーが５秒経過しても着火検知しない
場合（ステップ３２）、タイマー部７ｂから着火時空燃
比変更手段７ｃに信号が送られ、空燃比設定部７ａの値
を第２の着火時空燃比に設定し（ステップ３３）、燃焼
用送風機３の設定回転数を１８００ｒｐｍから１８５０
ｒｐｍに変更する（ステップ２４）。Next, for example, when used in high altitudes or when dust or the like adheres to the combustion air supply passage, the density and amount of air decrease, resulting in yellow combustion, and the flame current does not reach a predetermined value. Sometimes. At this time, when the timer started together with the ignition operation does not detect ignition even after 5 seconds have elapsed (step 32), a signal is sent from the timer section 7b to the ignition air-fuel ratio changing means 7c, and the value of the air-fuel ratio setting section 7a is set to The air-fuel ratio at ignition is set to 2 (step 33), and the set rotation speed of the blower 3 for combustion is changed from 1800 rpm to 1850 rpm.
Change to rpm (step 24).
【００１８】燃焼用送風機３の回転数が上がると空気不
足の状態が解消され、燃焼状態が最適な状態となり、炎
電流が所定値以上になり、着火検知が可能になる。着火
検知すると前記フローと同様にステップ２７へ進むが、
ステップ２８，２９は既に実施されているため、ステッ
プ３０，３１へと進む。When the number of revolutions of the blower 3 for combustion rises, the state of insufficient air is eliminated, the combustion state becomes optimal, the flame current exceeds a predetermined value, and ignition detection becomes possible. When ignition is detected, the process proceeds to step 27 as in the above flow,
Since steps 28 and 29 have already been executed, the process proceeds to steps 30 and 31.
【００１９】このように、本実施例においては、通常の
使用状態のみならず、高地使用や燃焼用空気供給路にホ
コリが付着して空気供給量がやや少ない場合において
も、着火しない場合は空燃比を変更して最適な燃焼状態
にて着火させるので、イエロー燃焼を継続して有害ガス
を排出したり、悪臭を発生させたりすることなく確実に
検知できる。As described above, in the present embodiment, not only in the normal use condition, but also in the case of high altitude use or when the air supply amount for combustion is slightly small due to dust adhering to the air supply passage for combustion, the air is not emptied. Since the fuel ratio is changed and ignition is performed in the optimum combustion state, it is possible to reliably detect yellow combustion without emitting harmful gas or generating a bad odor.
【００２０】実施例２．なお、上記実施例１では着火検
知しない場合、１回だけ着火空燃比を変更するようにし
たが、図５の制御フローチャートに示すように、着火検
知するまで順次着火時空燃比を変更するようにしても良
い。図５において、ステップ２０〜３１は図４と同じな
ので、説明を省略する。着火検知しない場合、タイマー
が５の倍数になるたび（ステップ３５）、即ち５，１
０，１５，…秒後にステップ３６，３７に進み、空燃比
設定部７ａの着火時空燃比を変更し、燃焼用送風機３の
回転数を５０ｒｐｍずつ上昇させていく。これにより、
着火時にかなり空燃比が低く、赤火状態で着火したとし
ても、炎電流が上昇する最適な燃焼状態になるまで、着
火空燃比を徐々に変更するので、確実に着火検知するこ
とができる。Example 2. In the first embodiment, when the ignition is not detected, the ignition air-fuel ratio is changed only once. However, as shown in the control flowchart of FIG. 5, the ignition air-fuel ratio is changed sequentially until the ignition is detected. Is also good. In FIG. 5, steps 20 to 31 are the same as in FIG. When ignition is not detected, every time the timer becomes a multiple of 5 (step 35), that is, 5, 1
After 0, 15, ... Seconds, the process proceeds to steps 36 and 37, the ignition air-fuel ratio of the air-fuel ratio setting unit 7a is changed, and the rotation speed of the combustion blower 3 is increased by 50 rpm. This allows
Even if the air-fuel ratio is considerably low at the time of ignition and ignition occurs in the red fire state, the ignition air-fuel ratio is gradually changed until the optimum combustion state in which the flame current rises, so ignition can be reliably detected.
【図１】本発明の一実施例における燃焼器具の制御装置
のブロック図である。FIG. 1 is a block diagram of a control device for a combustion appliance according to an embodiment of the present invention.
【図２】本発明の一実施例における燃焼器具の構成図で
ある。FIG. 2 is a configuration diagram of a combustion instrument according to an embodiment of the present invention.
【図３】本発明の一実施例における制御装置の電気回路
図である。FIG. 3 is an electric circuit diagram of a control device according to an embodiment of the present invention.
【図４】本発明の一実施例における制御装置の制御フロ
ーチャートである。FIG. 4 is a control flowchart of the control device in the embodiment of the present invention.
【図５】本発明の第２の実施例における制御装置の制御
フローチャートである。FIG. 5 is a control flowchart of the control device in the second embodiment of the present invention.
１ 燃焼部 ２ 燃料供給手段（電磁ポンプ） ３ 燃焼用空気供給手段（燃焼用送風機） ５ 着火検知手段（フレームロッド） ７ 燃焼制御部 ７ａ 空燃比設定部 ７ｂ タイマー部 ７ｃ 着火時空燃比変更手段 DESCRIPTION OF SYMBOLS 1 Combustion part 2 Fuel supply means (electromagnetic pump) 3 Combustion air supply means (combustion blower) 5 Ignition detection means (frame rod) 7 Combustion control section 7a Air-fuel ratio setting section 7b Timer section 7c Ignition air-fuel ratio changing means
Claims (2)
燃料供給手段と、前記燃焼部へ燃焼用空気を供給する燃
焼用空気供給手段と、この燃焼用空気供給手段と前記燃
料供給手段を制御して燃焼を行わせる燃焼制御部と、前
記燃焼部に炎が形成されると着火検知信号を出力する着
火検知手段とからなり、前記燃焼制御部は着火動作に関
連してスタートし、所定時間が経過すると信号を出力す
るタイマー部と、着火時の空燃比を通常燃焼中の空燃比
とは異なる値に設定する空燃比設定部と、前記着火検知
信号または前記タイマー部からの信号のどちらか早い方
の信号が入力された時点で前記空燃比設定部の着火時の
空燃比を変更する着火空燃比変更手段とを備えたことを
特徴とする燃焼器具の制御装置。1. A combustion section, fuel supply means for supplying fuel to the combustion section, combustion air supply means for supplying combustion air to the combustion section, combustion air supply means, and fuel supply means. Combustion control unit for controlling and performing combustion, and consisting of ignition detection means for outputting an ignition detection signal when a flame is formed in the combustion unit, the combustion control unit starts in association with the ignition operation, A timer unit that outputs a signal when a predetermined time has elapsed, an air-fuel ratio setting unit that sets the air-fuel ratio at ignition to a value different from the air-fuel ratio during normal combustion, and the ignition detection signal or the signal from the timer unit. An ignition air-fuel ratio changing means for changing the air-fuel ratio of the air-fuel ratio setting unit when the air-fuel ratio setting unit is ignited, whichever is earlier.
比を有し、前記着火空燃比変更手段は、着火検知信号が
入力されない場合、前記タイマー部のカウント値に基づ
いて順次空燃比を変更することを特徴とする請求項１記
載の燃焼器具の制御装置。2. The air-fuel ratio setting unit has a plurality of stages of ignition air-fuel ratio, and the ignition air-fuel ratio changing unit sequentially sets the air-fuel ratio based on the count value of the timer unit when the ignition detection signal is not input. The control device for a combustion appliance according to claim 1, wherein the control device is changed.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7200832A JP3033475B2 (en) | 1995-08-07 | 1995-08-07 | Control device for combustion equipment |
| CN96100550A CN1105873C (en) | 1995-08-07 | 1996-04-09 | Burner controller |
| KR1019960030920A KR100190461B1 (en) | 1995-08-07 | 1996-07-29 | Control system for a combustion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7200832A JP3033475B2 (en) | 1995-08-07 | 1995-08-07 | Control device for combustion equipment |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11335773A Division JP2000121047A (en) | 1999-11-26 | 1999-11-26 | Controller for combustor |
| JP11335774A Division JP3141022B2 (en) | 1999-11-26 | 1999-11-26 | Control device for combustion equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0949628A true JPH0949628A (en) | 1997-02-18 |
| JP3033475B2 JP3033475B2 (en) | 2000-04-17 |
Family
ID=16430950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7200832A Expired - Fee Related JP3033475B2 (en) | 1995-08-07 | 1995-08-07 | Control device for combustion equipment |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3033475B2 (en) |
| KR (1) | KR100190461B1 (en) |
| CN (1) | CN1105873C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6908299B2 (en) | 2002-08-29 | 2005-06-21 | Noritz Corporation | Combustion apparatus |
| US6918757B2 (en) | 2002-08-29 | 2005-07-19 | Noritz Corporation | Combustion apparatus |
| WO2007037408A1 (en) * | 2005-09-29 | 2007-04-05 | Kenji Okayasu | Portable heat transfer unit |
| CN102444910A (en) * | 2011-12-31 | 2012-05-09 | 杭州杭真真空工程技术有限公司 | Combustion control system |
| CN104484001A (en) * | 2014-12-02 | 2015-04-01 | 重庆戴卡捷力轮毂制造有限公司 | Visible time control device for natural gas baking oven |
| JP2016205691A (en) * | 2015-04-21 | 2016-12-08 | 株式会社コロナ | Vaporization oil combustion device |
| WO2024001511A1 (en) * | 2022-06-30 | 2024-01-04 | 芜湖美的智能厨电制造有限公司 | Control method, water heater, and computer-readable storage medium |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100506244C (en) * | 2007-04-25 | 2009-07-01 | 于忠军 | Chinese traditional medicine liquid for creating plane warts |
| CN104197371B (en) * | 2014-07-28 | 2017-10-27 | 安徽艾可蓝环保股份有限公司 | A kind of semi-enclosed small spatial aliasing formula ignition control method |
-
1995
- 1995-08-07 JP JP7200832A patent/JP3033475B2/en not_active Expired - Fee Related
-
1996
- 1996-04-09 CN CN96100550A patent/CN1105873C/en not_active Expired - Fee Related
- 1996-07-29 KR KR1019960030920A patent/KR100190461B1/en not_active IP Right Cessation
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6908299B2 (en) | 2002-08-29 | 2005-06-21 | Noritz Corporation | Combustion apparatus |
| US6918757B2 (en) | 2002-08-29 | 2005-07-19 | Noritz Corporation | Combustion apparatus |
| WO2007037408A1 (en) * | 2005-09-29 | 2007-04-05 | Kenji Okayasu | Portable heat transfer unit |
| US7975657B2 (en) | 2005-09-29 | 2011-07-12 | Kenji Okayasu | Portable heat transfer apparatus |
| CN102444910A (en) * | 2011-12-31 | 2012-05-09 | 杭州杭真真空工程技术有限公司 | Combustion control system |
| CN104484001A (en) * | 2014-12-02 | 2015-04-01 | 重庆戴卡捷力轮毂制造有限公司 | Visible time control device for natural gas baking oven |
| JP2016205691A (en) * | 2015-04-21 | 2016-12-08 | 株式会社コロナ | Vaporization oil combustion device |
| WO2024001511A1 (en) * | 2022-06-30 | 2024-01-04 | 芜湖美的智能厨电制造有限公司 | Control method, water heater, and computer-readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3033475B2 (en) | 2000-04-17 |
| KR100190461B1 (en) | 1999-06-01 |
| KR970011567A (en) | 1997-03-27 |
| CN1164002A (en) | 1997-11-05 |
| CN1105873C (en) | 2003-04-16 |
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