JPH08178271A - Combustion control method for boiler - Google Patents
Combustion control method for boilerInfo
- Publication number
- JPH08178271A JPH08178271A JP33578494A JP33578494A JPH08178271A JP H08178271 A JPH08178271 A JP H08178271A JP 33578494 A JP33578494 A JP 33578494A JP 33578494 A JP33578494 A JP 33578494A JP H08178271 A JPH08178271 A JP H08178271A
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- blower
- air
- amount
- rotation speed
- 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
Landscapes
- Regulation And Control Of Combustion (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高燃焼、低燃焼、停止
の３位置制御を行なうボイラ−の燃焼制御方法に関し、
燃焼用空気を送る送風機の制御に回転数制御装置を使用
したボイラーの燃焼制御方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boiler combustion control method for performing three-position control of high combustion, low combustion, and stop,
The present invention relates to a boiler combustion control method using a rotation speed control device to control a blower that sends combustion air.
【０００２】[0002]
【従来技術】一般にボイラ−は燃料と空気をバーナに送
り、燃焼室内で燃焼させるが、空気量が多過ぎると、こ
の余分な空気により燃焼室内の熱を奪われ、また余分な
空気を送るため、送風用電力を無駄に消費することにな
る。また、空気量が足りないと完全燃焼が出来ず発煙状
態となり燃料の無駄ともなる。Boilers generally send fuel and air to a burner and burn them in a combustion chamber. However, if the amount of air is too large, the heat in the combustion chamber is taken away by the excess air and the excess air is also sent. However, the power for blowing air is wasted. Further, if the amount of air is insufficient, complete combustion cannot be performed and a smoke is generated, resulting in waste of fuel.
【０００３】従来より高燃焼、低燃焼、停止を制御する
３位置制御のボイラ−では燃料供給は電磁弁の開閉によ
り制御され、空気供給は一定回転数の送風機を設けた風
路にダンパを取付け、ダンパの開閉により制御される。
燃料供給と空気供給を制御する制御信号は同時出力さ
れ、燃料供給を制御する電磁弁は瞬時に作動する。空気
供給を制御するダンパも１秒以内に作動するので制御上
の問題はない。しかし、送風機は常時、高燃焼に対応し
た一定回転数で運転されるので特に低燃焼時の電力効率
が悪くなると云う問題がある。Conventionally, in a three-position control boiler for controlling high combustion, low combustion and stop, fuel supply is controlled by opening and closing a solenoid valve, and air supply is equipped with a damper in an air passage provided with a blower having a constant rotation speed. , It is controlled by opening and closing the damper.
The control signals for controlling the fuel supply and the air supply are simultaneously output, and the solenoid valve for controlling the fuel supply operates instantaneously. Since the damper that controls the air supply also operates within 1 second, there is no control problem. However, since the blower is always operated at a constant rotation speed corresponding to high combustion, there is a problem that the power efficiency is deteriorated especially at low combustion.
【０００４】そこで３位置制御のボイラ−に送風機の回
転数を制御する回転数制御装置を設け、送風機の回転数
を制御することにより、必要な空気量を送る制御方法が
試みられている。しかしながら、燃料供給を制御する電
磁弁は瞬時に作動するのに対して、前記回転数制御装置
による風量の制御は送風機の加減速特性が図３に示すよ
うに応答に遅れがある。即ち、加速時は送風機の実際の
加速時間ｔ31＝回転数制御装置の加速時間ｔ32＋送風機
の応答遅れ時間ｔ33となり、また減速時は実際の減速時
間ｔ34＝回転数制御装置の減速時間ｔ35＋送風機の応答
遅れ時間ｔ36となり、所定の空気量になるまでの時間は
約１０秒程度となる。Therefore, a three-position control boiler is provided with a rotation speed control device for controlling the rotation speed of the blower, and a control method of sending a required air amount by controlling the rotation speed of the blower has been attempted. However, the solenoid valve that controls the fuel supply operates instantaneously, whereas the control of the air volume by the rotation speed control device has a delayed response as shown in FIG. 3 due to the acceleration / deceleration characteristics of the blower. That is, the actual acceleration time t 31 of the blower = acceleration time t 32 of the rotation speed control device + the response delay time t 33 of the blower during acceleration, and the actual deceleration time t 34 = deceleration of the rotation speed control device during deceleration. The time is t 35 + the response delay time of the blower is t 36 , and the time until the predetermined air amount is reached is about 10 seconds.
【０００５】その結果、低燃焼から高燃焼に移る燃料の
増加時には燃料過多となり黒煙が発生し、また、逆に燃
料の減少時には空気量過多となり吹き消えが発生するこ
とがある。なお、図３において、実線は回転数制御装置
の出力周波数、破線は送風機の出力周波数を示す。As a result, when the amount of fuel that shifts from low combustion to high combustion increases, too much fuel causes black smoke, and conversely, when the amount of fuel decreases, too much air occurs and blowout may occur. In FIG. 3, the solid line indicates the output frequency of the rotation speed control device, and the broken line indicates the output frequency of the blower.
【０００６】図４は、従来の制御方法で回転数制御装置
を使用した場合の特性を示す図である。これは３位置制
御のボイラ−の運転の場合で、送風機を起動し、低燃焼
の空気量に達したところで燃料に着火し低燃焼運転を開
始する。低燃焼より高燃焼に移る時は、燃料は時間ｔ42
経過後（燃料の増加に要する時間）に高燃焼に必要な燃
料供給量に達するが、空気量が必要量に達するには時間
ｔ41（ｔ42＜ｔ41）経過後（空気量の増加に要する時
間）となる。従って、この間は燃焼空気が不足し、黒煙
が発生し燃焼が不安定になる。FIG. 4 is a diagram showing characteristics when a rotation speed control device is used in a conventional control method. This is the case of the operation of the three-position control boiler, in which the blower is started, and when the low combustion air amount is reached, the fuel is ignited and the low combustion operation is started. When moving from low combustion to high combustion, the fuel is at time t 42.
After the lapse of time (time required to increase the fuel), the fuel supply amount required for high combustion is reached, but it takes time t 41 (t 42 <t 41 ) to reach the required amount of the air (when the air amount is increased). It takes time). Therefore, during this period, the combustion air is insufficient, black smoke is generated, and combustion becomes unstable.
【０００７】また、高燃焼より低燃焼に移る時は、燃料
は時間ｔ44経過後（燃料の減少に要する時間）に低燃焼
に必要な燃料供給量に減少するが、空気が低燃焼空気量
に減少するのは時間ｔ43（ｔ44＜ｔ43）後（空気量の減
少に要する時間）となる。従って、この間に空気が過剰
となり吹き消えが発生することがある。Further, when the combustion changes from the high combustion to the low combustion, the fuel is reduced to the fuel supply amount required for the low combustion after the time t 44 has elapsed (time required for reducing the fuel), but the air is low in the combustion air amount. It will be reduced to time t 43 (t 44 <t 43 ) (time required to reduce the air amount). Therefore, during this time, the air may become excessive and blow off may occur.
【０００８】この対策として、特開昭６１−２７６６２
３号公報に開示されるように送風機の回転数制御とダン
パによる風量制御とを併用する方法がある。図５はこの
ボイラ−燃焼炉の制御装置の構成例を示す図である。図
示するように、燃焼に必要な空気５５は送風機５４及び
ダンパ−６３を経てバ−ナ５３へ供給される。一方、燃
料５２は流量調節器５１で調節されバ−ナ５３へ供給さ
れ空気５５と混合され燃焼する。燃焼炉５８ではボイラ
−５９が加熱され蒸気６５を発生させ、蒸気６５は蒸留
管６４を通して送出される。As a countermeasure against this, Japanese Patent Laid-Open No. 61-27662
As disclosed in Japanese Patent No. 3, there is a method of using both the rotation speed control of a blower and the air volume control by a damper. FIG. 5 is a diagram showing a configuration example of the control device for the boiler-combustion furnace. As shown in the figure, the air 55 required for combustion is supplied to the burner 53 via a blower 54 and a damper 63. On the other hand, the fuel 52 is regulated by the flow rate regulator 51 and supplied to the burner 53 to be mixed with the air 55 and burned. In the combustion furnace 58, the boiler 59 is heated to generate steam 65, and the steam 65 is delivered through the distillation pipe 64.
【０００９】圧力検出器６０は蒸気圧を検出し、その出
力信号でモ−タ６１を制御してリンク６２を介して流量
調節器５１を調節し、燃料の流入量を調節すると共にダ
ンパ−６３の開度を調整して空気量を調節する。更に、
ダンパ−６３の調節だけでは完全燃焼させるための空気
量が得られないために送風機５４の回転数を制御し風量
を調節する。送風機５４は回転数制御装置５７の出力周
波数で回転数が制御され風量を調節する。周波数設定器
５６はバ−ナ５３の開度に応じて燃焼の状態（Ｏ2測定
器６６による酸素濃度、排煙測定器６７の出力及び目視
による排煙状態）が最良になるように回転数制御装置５
７を介して送風機５４を制御する。なお、同図で符号６
８は煙突、符号６９は煙を表す。The pressure detector 60 detects the vapor pressure and controls the motor 61 with its output signal to adjust the flow controller 51 via the link 62 to adjust the inflow amount of fuel and the damper 63. Adjust the opening to adjust the air volume. Furthermore,
Since the amount of air for complete combustion cannot be obtained only by adjusting the damper 63, the rotation speed of the blower 54 is controlled to adjust the amount of air. The blower 54 has its rotation speed controlled by the output frequency of the rotation speed control device 57 to adjust the air volume. The frequency setting device 56 rotates according to the opening degree of the burner 53 so that the combustion condition (oxygen concentration measured by the O 2 measuring device 66, output of the smoke emission measuring device 67, and smoke emission condition by visual observation) is optimized. Control device 5
The blower 54 is controlled via 7. In the figure, reference numeral 6
Reference numeral 8 represents a chimney, and reference numeral 69 represents smoke.
【００１０】[0010]
【発明が解決しようとする課題】しかしながら、上記従
来技術の殆どは比例制御方法のボイラーに適用されるも
のであり、３位置制御方法等のボイラーに適用される燃
焼制御方法は確立されていない。また、上記に述べた回
転数制御装置５７による送風機の回転数制御とダンパ−
６３による風量制御を併用する制御方法は、コストが高
くなり回転数制御装置５７を利用するメリットが無くな
る。また、送風機の駆動モ−タ容量に比べて回転数制御
装置５７の容量を大きくして加減速時間を早くする方法
もあるが駆動モ−タ容量が大きくなると困難となり、高
価になると云う問題があった。However, most of the above-mentioned prior arts are applied to the boiler of the proportional control method, and the combustion control method applied to the boiler such as the three-position control method has not been established. Also, the rotation speed control and damper of the blower by the rotation speed control device 57 described above.
The control method that also uses the air volume control by 63 increases the cost and eliminates the merit of using the rotation speed control device 57. There is also a method of increasing the capacity of the rotation speed control device 57 to make the acceleration / deceleration time faster than the capacity of the drive motor of the blower, but it becomes difficult and expensive when the capacity of the drive motor becomes large. there were.
【００１１】本発明は上述の点に鑑みてなされたもの
で、上記問題点を除去し、送風機の回転数を制御し、空
気量を調節することにより安定して運転できる３位置制
御等を行なうボイラ−の燃焼制御方法を提供することを
目的とする。The present invention has been made in view of the above-mentioned problems, and eliminates the above-mentioned problems, controls the number of revolutions of a blower, and adjusts the amount of air to perform three-position control or the like, which enables stable operation. It is an object to provide a combustion control method for a boiler.
【００１２】[0012]
【課題を解決するための手段】上記課題を解決するため
本発明は、燃焼用空気を送る送風機、該送風機から送ら
れる燃焼用空気量を調整する空気量調整手段と、高燃焼
及び低燃焼で燃料供給量を変えて供給する燃料供給手段
及びこれらを制御する制御手段を具備し、ボイラーの燃
焼を制御する燃焼制御方法において、図１に示すよう
に、空気量調整手段として送風機１３の回転数を制御す
る回転数制御装置１５を設けると共に、送風機１３の吐
出風圧を検出する風圧検出器１４を設け、低燃焼から高
燃焼へ移る際、制御手段の制御により、回転数制御装置
１５を介して送風機１３の回転数を上げ、風圧検出器１
４の出力信号又は送風機１３の回転数により空気量が高
燃焼に適切な空気量になったことを検知したら、燃料供
給手段により高燃焼の燃料を供給し（低燃焼油電磁弁１
９及び高燃焼油電磁弁２０を共に開き）、高燃焼から低
燃焼へ移る際は回転数制御装置１５を介して送風機の回
転数を下げ、風圧検出器１４の出力信号又は送風機１３
の回転数により空気量が低燃焼に適切な空気量になった
ことを検知したら、燃料供給手段により低燃焼の燃料を
供給する（低燃焼油電磁弁１９を開、高燃焼油電磁弁２
０を閉）ことを特徴とする。In order to solve the above problems, the present invention provides a blower for sending combustion air, an air amount adjusting means for adjusting the amount of combustion air sent from the blower, and a high combustion and a low combustion. In a combustion control method for controlling the combustion of a boiler, which is provided with a fuel supply means for changing and supplying the fuel supply quantity, and a control means for controlling these, as shown in FIG. 1, as shown in FIG. And a wind pressure detector 14 for detecting the discharge air pressure of the blower 13 are provided, and when the low combustion is changed to the high combustion, the rotation speed control device 15 is controlled by the control means. The rotation speed of the blower 13 is increased, and the wind pressure detector 1
When it is detected by the output signal of No. 4 or the number of revolutions of the blower 13 that the air amount has become appropriate for high combustion, the fuel supply means supplies high combustion fuel (low combustion oil solenoid valve 1
9 and the high combustion oil solenoid valve 20 are both opened), and when changing from high combustion to low combustion, the rotation speed of the blower is reduced via the rotation speed control device 15, and the output signal of the wind pressure detector 14 or the blower 13 is output.
When it is detected that the air amount has become an appropriate air amount for low combustion based on the rotation speed of, the fuel supply means supplies low combustion fuel (the low combustion oil solenoid valve 19 is opened, the high combustion oil solenoid valve 2 is opened).
0 is closed).
【００１３】[0013]
【作用】本発明のボイラ−燃焼制御方法では、低燃焼か
ら高燃焼に移る際は、まず回転数制御装置１５で送風機
１３の回転数を上げ、空気量が適切な量に達した時に燃
料供給手段により高燃焼の燃料を供給するので、従来の
ように燃焼用空気の不足により、黒煙を発生することは
無い。また、高燃焼から低燃焼に移る際は、回転数制御
装置１５で送風機１３の回転数を下げ、空気量が低燃焼
に適切な量になった時に、燃料供給手段により高燃焼の
燃料を停止するので、従来のように空気量過剰による吹
き消えが発生することは無くなる。また、常に燃焼に必
要な空気を送るから、電力効率も向上する。In the boiler combustion control method of the present invention, when shifting from low combustion to high combustion, first, the rotation speed control device 15 increases the rotation speed of the blower 13, and when the amount of air reaches an appropriate amount, fuel is supplied. Since high-combustion fuel is supplied by the means, black smoke is not generated due to a shortage of combustion air as in the conventional case. Further, when shifting from high combustion to low combustion, the rotation speed control device 15 lowers the rotation speed of the blower 13, and when the amount of air becomes an appropriate amount for low combustion, the fuel supply means stops the high combustion fuel. Therefore, the blowout due to the excess air amount unlike the conventional case does not occur. In addition, since the air required for combustion is always sent, power efficiency is also improved.
【００１４】[0014]
【実施例】以下、本発明の一実施例を図面に基づいて詳
細に説明する。図１は本発明のボイラ−の燃焼制御方法
を実施するボイラ−設備の構成例を示す図である。図１
において、１１はボイラ−であり、該ボイラ−１１の燃
焼室２２にはバ−ナ２１が配置されている。燃焼用空気
は送風機１３によりケ−シング１２を通してバーナ２１
に供給され、燃料はポンプ１８により圧送され、低燃焼
油電磁弁１９及び高燃焼油電磁弁２０を介してバーナ２
１の噴射ノズル（図示せず）から噴射される。ここで前
記燃焼用空気と混合され、燃焼し燃焼室２２内に火炎を
形成する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram showing a configuration example of boiler equipment for carrying out the combustion control method for a boiler of the present invention. FIG.
In the figure, 11 is a boiler, and a burner 21 is arranged in a combustion chamber 22 of the boiler 11. Combustion air is passed through the casing 12 by the blower 13 to the burner 21.
Is supplied to the burner 2 via the low combustion oil solenoid valve 19 and the high combustion oil solenoid valve 20.
It is ejected from one ejection nozzle (not shown). Here, it is mixed with the combustion air and burns to form a flame in the combustion chamber 22.
【００１５】ケ−シング１２の所定位置には風圧検出器
１４が設置され、その出力信号は制御部１６へ入力され
る。回転数制御装置１５は制御部１６の指令を受けて送
風機１３の回転数を制御し、風量を適切な量に調節す
る。ボイラ−１１には蒸気圧力を検知する蒸気圧スイッ
チ１７が設置され、その出力信号は制御部１６へ入力さ
れる。該制御部１６は低燃焼油電磁弁１９及び高燃焼油
電磁弁２０の開閉制御を行ない、前記ポンプ１８からの
燃料を低燃焼油電磁弁１９及び高燃焼油電磁弁２０を通
して供給制御する。A wind pressure detector 14 is installed at a predetermined position of the casing 12, and its output signal is input to the control unit 16. The rotation speed control device 15 receives a command from the control unit 16 and controls the rotation speed of the blower 13 to adjust the air volume to an appropriate amount. A steam pressure switch 17 for detecting steam pressure is installed in the boiler 11, and an output signal thereof is input to the control unit 16. The control unit 16 controls the opening and closing of the low combustion oil electromagnetic valve 19 and the high combustion oil electromagnetic valve 20, and controls the supply of fuel from the pump 18 through the low combustion oil electromagnetic valve 19 and the high combustion oil electromagnetic valve 20.
【００１６】図２は本発明のボイラ−の燃焼制御方法に
おける空気量変化と燃料供給タイミングを示す図であ
る。本燃焼制御方法は高燃焼、低燃焼、停止を制御する
３位置制御方法で、燃料は低燃焼時には低燃焼油電磁弁
１９から供給され、高燃焼時には更に高燃焼油電磁弁２
０からも並行して供給される（図１参照）。FIG. 2 is a diagram showing a change in the air amount and a fuel supply timing in the combustion control method for the boiler according to the present invention. This combustion control method is a three-position control method for controlling high combustion, low combustion, and stop. Fuel is supplied from a low combustion oil solenoid valve 19 during low combustion, and a higher combustion oil solenoid valve 2 during high combustion.
It is supplied in parallel from 0 (see FIG. 1).
【００１７】図２に従って燃料供給タイミングを説明す
る。制御部１６から回転数制御装置１５に起動信号ａが
出力されると、該回転数制御装置１５は送風機１３を起
動し、送風機１３からケーシング１２を通って送られる
空気量は時間ｔ21（加速時間）後に低燃焼に必要な空気
量に達する。続いて着火及び低燃焼弁開信号ｂを出力し
バーナ２１及び低燃焼油電磁弁１９に送り、低燃焼油電
磁弁１９を開き、着火し低燃焼運転を開始する。The fuel supply timing will be described with reference to FIG. When the activation signal a is output from the control unit 16 to the rotation speed control device 15, the rotation speed control device 15 starts the blower 13, and the amount of air sent from the blower 13 through the casing 12 is the time t 21 (acceleration). After a period of time) the amount of air required for low combustion is reached. Subsequently, the ignition and low combustion valve open signal b is output and sent to the burner 21 and the low combustion oil electromagnetic valve 19, the low combustion oil electromagnetic valve 19 is opened, and ignition is performed to start the low combustion operation.
【００１８】制御部１６から高燃焼信号ｃが出力される
と回転数制御装置１５は図に示すように、送風機１３を
加速する。これにより時間ｔ22（加速時間）後には、ケ
ーシング１２を通って送られる空気量は高燃焼に必要な
空気量に達する。また、制御部１６は高燃焼信号ｃを出
力し、時間ｔ23経過後、風圧検出器１４の出力信号、又
は送風機１３の回転数から空気量が適切な量に増加した
ことを検知したら、高燃焼弁開信号ｄを出力し、高燃焼
油電磁弁２０を開け高燃焼に必要な燃料を供給し高燃焼
運転を開始する。When the high combustion signal c is output from the control unit 16, the rotation speed control device 15 accelerates the blower 13, as shown in the figure. After this the time t 22 (acceleration time), the amount of air fed through the casing 12 reaches the amount of air required for high combustion. Further, the control unit 16 outputs a high combustion signal c, when detecting that the increased time t 23 after the output signal of the air pressure detector 14, or the amount the amount of air is appropriate from the rotational speed of the blower 13, the high The combustion valve open signal d is output, the high combustion oil electromagnetic valve 20 is opened, and the fuel required for high combustion is supplied to start the high combustion operation.
【００１９】また、高燃焼から低燃焼に移る場合、制御
部１６から低燃焼信号ｅが出力されると回転数制御装置
１５は図に示すように送風機１３を減速し、時間ｔ
24（減速時間）後にはケーシング１２を通って送られる
空気量は、低燃焼に必要な空気量になる。制御部１６は
低燃焼信号ｅを出力して時間ｔ25経過後、風圧検出器１
４の出力信号または、送風機１３の回転数から空気量が
適切な量に減少したことを検知したら、高燃焼弁閉信号
ｆを出力し、高燃焼油電磁弁２０を閉じる。消火の際は
消火信号ｇを出力し、低燃焼油電磁弁１９を閉じ、その
後停止信号ｈを出力し送風機１３を停止する。Further, in the case of shifting from high combustion to low combustion, when the low combustion signal e is output from the control unit 16, the rotation speed control device 15 decelerates the blower 13 as shown in FIG.
After 24 (deceleration time), the amount of air sent through the casing 12 becomes the amount of air required for low combustion. The control unit 16 outputs the low combustion signal e, and after the time t 25 elapses, the wind pressure detector 1
When the output signal of No. 4 or the rotation speed of the blower 13 detects that the air amount has decreased to an appropriate amount, the high combustion valve close signal f is output and the high combustion oil electromagnetic valve 20 is closed. When extinguishing the fire, the fire extinguishing signal g is output, the low combustion oil electromagnetic valve 19 is closed, and then the stop signal h is output to stop the blower 13.
【００２０】上記した如く本発明のボイラ−燃焼制御方
法では、低燃焼から高燃焼に移る際は、制御部１６は先
ず回転数制御装置１５に高燃焼信号ｃを出力し、送風機
１３の回転数を上げ空気量が高燃焼に必要な量に達した
時に、高燃焼弁開信号ｄを出力し、高燃焼油電磁弁２０
を開き、燃料を高燃焼に必要な量に増加させるので、従
来のように多くの黒煙を発生することはない。また、高
燃焼から低燃焼に移る際は制御部１６は低燃焼信号ｅを
回転数制御装置１５に出力し、送風機１３の回転数を下
げ低燃焼に適切な空気量になった時に、高燃焼油電磁弁
２０を閉めるので従来のように吹き消えが発生すること
は無くなる。また、電力効率も向上する。As described above, in the boiler-combustion control method of the present invention, when shifting from low combustion to high combustion, the control unit 16 first outputs the high combustion signal c to the rotation speed control device 15 and the rotation speed of the blower 13. When the amount of air is raised to reach the amount required for high combustion, the high combustion valve open signal d is output, and the high combustion oil solenoid valve 20
Open and increase the amount of fuel required for high combustion, so it does not generate as much black smoke as before. Further, when shifting from high combustion to low combustion, the control unit 16 outputs a low combustion signal e to the rotation speed control device 15, and when the rotation speed of the blower 13 is reduced to obtain an air amount suitable for low combustion, high combustion is performed. Since the oil electromagnetic valve 20 is closed, there is no possibility that the blowout will occur unlike the conventional case. Also, power efficiency is improved.
【００２１】なお、上記実施例では高燃焼、低燃焼、停
止の３位置制御を例に説明したが、本願発明のボイラー
燃焼制御方法はこれに限定するものではなく、例えば４
位置制御の燃焼制御にも適用できることは当然である。In the above embodiment, the three-position control of high combustion, low combustion and stop has been described as an example, but the boiler combustion control method of the present invention is not limited to this, and for example, 4
Naturally, it can be applied to combustion control of position control.
【００２２】[0022]
【発明の効果】以上、詳細に説明したように本発明によ
れば、下記のような優れた効果が期待される。 （１）低燃焼から高燃焼に移る際は、まず回転数制御装
置で送風機の回転数を上げ空気量が適切な量に達した時
に燃料供給手段により高燃焼の燃料を供給するので、従
来のように燃焼用空気の不足により、黒煙を発生するこ
とは無く、又黒煙の発生による燃焼が不安定になること
も無く、高燃焼から低燃焼に移る際は、回転数制御装置
で送風機の回転数を下げ空気量が低燃焼に適切な量にな
った時に、燃料供給手段により高燃焼の燃料を停止する
ので、従来のように空気量過剰による吹き消えが発生す
ることは無くなる。As described in detail above, according to the present invention, the following excellent effects are expected. (1) When shifting from low combustion to high combustion, first, the rotation speed control device increases the rotation speed of the blower, and when the amount of air reaches an appropriate amount, high combustion fuel is supplied by the fuel supply means. As described above, due to lack of combustion air, black smoke is not generated, and combustion due to generation of black smoke does not become unstable.When shifting from high combustion to low combustion, a rotation speed control device is used to blow the blower. When the number of revolutions is decreased and the amount of air becomes an amount suitable for low combustion, the fuel supply means stops the fuel of high combustion, so that blowout due to excessive air amount as in the conventional case does not occur.
【００２３】（２）また、送風機により常に燃焼に必要
な空気を送るから、電力消費効率も向上し、ひいてはラ
ンニングコストが減少する。(2) Further, since the air necessary for combustion is constantly sent by the blower, the power consumption efficiency is improved and the running cost is reduced.
【図１】本発明のボイラ−の燃焼制御方法を実施するボ
イラ−設備の構成を示す図である。FIG. 1 is a diagram showing a configuration of boiler equipment for implementing a boiler combustion control method of the present invention.
【図２】本発明のボイラ−の燃焼制御方法における空気
量変化と燃料供給タイミングを示す図である。FIG. 2 is a diagram showing an air amount change and fuel supply timing in the boiler combustion control method of the present invention.
【図３】回転数制御装置の制御による送風機の加減速特
性を示す図である。FIG. 3 is a diagram showing an acceleration / deceleration characteristic of a blower under the control of a rotation speed control device.
【図４】従来の制御方法で回転数制御装置を使用した場
合の特性を示す図である。FIG. 4 is a diagram showing characteristics when a rotation speed control device is used in a conventional control method.
【図５】従来のボイラ−燃焼炉の制御装置の構成例を示
す図である。FIG. 5 is a diagram showing a configuration example of a conventional boiler-combustion furnace control device.
１１ ボイラ− １２ ケ−シング １３ 送風機 １４ 風圧検出器 １５ 回転数制御装置 １６ 制御部 １７ 蒸気圧スイッチ １８ ポンプ １９ 低燃焼油電磁弁 ２０ 高燃焼油電磁弁 ２１ バ−ナ ２２ 燃焼室 11 Boiler 12 Casing 13 Blower 14 Wind Pressure Detector 15 Rotation Speed Control Device 16 Controller 17 Steam Pressure Switch 18 Pump 19 Low Combustion Oil Solenoid Valve 20 High Combustion Oil Solenoid Valve 21 Burner 22 Combustion Chamber
Claims (4)
送られる燃焼用空気量を調整する空気量調整手段と、高
燃焼及び低燃焼で燃料供給量を変えて供給する燃料供給
手段及びこれらを制御する制御手段を具備し、ボイラー
の燃焼を制御するボイラ−の燃焼制御方法において、 前記空気量調整手段として前記送風機の回転数を制御す
る回転数制御装置を設け、 前記低燃焼から高燃焼へ移る際は前記制御手段の制御に
より、前記回転数制御装置を介して送風機の回転数を上
げ、前記送風機からの空気量を検出し高燃焼に適切な空
気量になったら、前記燃料供給手段により高燃焼の燃料
を供給し、前記高燃焼から低燃焼へ移る際は前記回転数
制御装置を介して送風機の回転数を下げ、前記送風機か
らの空気量を検出し低燃焼に適切な空気量になったら、
前記燃料供給手段により低燃焼の燃料を供給することを
特徴とするボイラ−の燃焼制御方法。1. A blower for sending combustion air, an air amount adjusting means for adjusting the amount of combustion air sent from the blower, a fuel supply means for supplying the fuel by changing the fuel supply amount between high combustion and low combustion, and these. A combustion control method for a boiler, comprising control means for controlling, controlling combustion of a boiler, wherein a rotation speed control device for controlling a rotation speed of the blower is provided as the air amount adjusting means, and the combustion rate is changed from low to high. When moving, by the control of the control means, the rotation speed of the blower is increased through the rotation speed control device, and when the air amount from the blower is detected and the air amount becomes appropriate for high combustion, the fuel supply means is used. Supplying high combustion fuel, when moving from the high combustion to the low combustion, lower the rotation speed of the blower through the rotation speed control device, detect the amount of air from the blower to an appropriate air amount for low combustion. Become Et al.,
A combustion control method for a boiler, characterized in that low combustion fuel is supplied by the fuel supply means.
検出し、該吐出圧力により燃焼量の増減を行なうことを
特徴とする請求項１に記載のボイラーの燃焼制御方法。2. The combustion control method for a boiler according to claim 1, wherein the amount of air is detected from a discharge pressure of the blower, and the amount of combustion is increased or decreased by the discharge pressure.
出し、該回転数により燃焼量の増減を行なうことを特徴
とする請求項１に記載のボイラーの燃焼制御方法。3. The combustion control method for a boiler according to claim 1, wherein the amount of air is detected from the number of revolutions of the blower, and the amount of combustion is increased or decreased according to the number of revolutions.
減指令から一定時間送らせるボイラーの燃焼制御方法。4. A combustion control method for a boiler, wherein the increase / decrease in the combustion amount is sent for a certain period of time from an increase / decrease command for the rotational speed of a blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33578494A JP3561309B2 (en) | 1994-12-20 | 1994-12-20 | Boiler combustion control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33578494A JP3561309B2 (en) | 1994-12-20 | 1994-12-20 | Boiler combustion control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08178271A true JPH08178271A (en) | 1996-07-12 |
| JP3561309B2 JP3561309B2 (en) | 2004-09-02 |
Family
ID=18292414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33578494A Expired - Fee Related JP3561309B2 (en) | 1994-12-20 | 1994-12-20 | Boiler combustion control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3561309B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010210161A (en) * | 2009-03-11 | 2010-09-24 | Yamatake Corp | Combustion burner |
| WO2014178409A1 (en) * | 2013-05-01 | 2014-11-06 | 三浦工業株式会社 | Boiler |
| JP2016001072A (en) * | 2014-06-11 | 2016-01-07 | 三浦工業株式会社 | Boiler |
-
1994
- 1994-12-20 JP JP33578494A patent/JP3561309B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010210161A (en) * | 2009-03-11 | 2010-09-24 | Yamatake Corp | Combustion burner |
| WO2014178409A1 (en) * | 2013-05-01 | 2014-11-06 | 三浦工業株式会社 | Boiler |
| JP2014219120A (en) * | 2013-05-01 | 2014-11-20 | 三浦工業株式会社 | Boiler |
| JP2016001072A (en) * | 2014-06-11 | 2016-01-07 | 三浦工業株式会社 | Boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3561309B2 (en) | 2004-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0225655B1 (en) | Process for the ignition of a burner | |
| JPH08178271A (en) | Combustion control method for boiler | |
| MXPA96006090A (en) | Method and system in a fluid heating apparatus to control the combust efficiently | |
| JP4191359B2 (en) | Boiler with continuous combustion | |
| JP3335282B2 (en) | Air volume adjustment method using boiler inverter device | |
| JP2933876B2 (en) | Operation control method of multi-can boiler | |
| JP2877498B2 (en) | Control device for combustion device | |
| JP2567302B2 (en) | Gas type discriminating method and combustion apparatus for implementing the same | |
| JP4343037B2 (en) | Hot air generator | |
| GB2401930A (en) | A method and device for igniting an oil burner | |
| JPH10213320A (en) | Combustion control method for three position control boiler | |
| JPH0933036A (en) | Boiler for performing adjustment of air supplying volume in ignition time | |
| JP3022250B2 (en) | Blow control method for three-position combustion control boiler | |
| KR920009085B1 (en) | Combustion controller | |
| JP2558797B2 (en) | Water heater controller | |
| JP2877503B2 (en) | Combustion equipment | |
| JP3707186B2 (en) | Vibration combustion detection method and combustion apparatus | |
| KR920009084B1 (en) | Combustion controller | |
| JP2001074238A (en) | Boiler performing purge control based on measured value of air volume | |
| JP3745008B2 (en) | Burner combustion equipment | |
| JPH07190342A (en) | Combustion equipment | |
| JP2707231B2 (en) | Hot air heater | |
| JPH0894069A (en) | Gas combustion device | |
| KR20000032701A (en) | Method of controlling exhaust fan according to temperature of exhaust gas of gas boiler | |
| JPH06117689A (en) | Controlling method for hot water supplying apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040413 Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20040413 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20040420 Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040420 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040528 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080604 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090604 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100604 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110604 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110604 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120604 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130604 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130604 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140604 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |