JP2612985B2 - Burner control device - Google Patents
Burner control deviceInfo
- Publication number
- JP2612985B2 JP2612985B2 JP3324326A JP32432691A JP2612985B2 JP 2612985 B2 JP2612985 B2 JP 2612985B2 JP 3324326 A JP3324326 A JP 3324326A JP 32432691 A JP32432691 A JP 32432691A JP 2612985 B2 JP2612985 B2 JP 2612985B2
- Authority
- JP
- Japan
- Prior art keywords
- burner
- signal
- control valve
- burners
- pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Regulation And Control Of Combustion (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、バーナ制御装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burner control device.
【０００２】[0002]
【従来の技術】従来、たとえば、複数のバーナ３（３
ａ，３ｂ，３ｃ）を備えた加熱炉にあっては、図４に示
すように、炉毎あるいは帯域毎に１つの温度検出器１を
設け、検出温度を温度調節装置２に入力させ、炉温が所
定温度になるよう制御信号により燃焼用空気制御弁４お
よび燃料制御弁５の開度を制御して各バーナ３ａ，３
ｂ，３ｃの燃焼量を制御している。また、複数のバーナ
を備えたボイラにあっては、１つの蒸気圧検出器１′を
設け、検出圧力を蒸気圧調節装置２′に入力させ、ボイ
ラ内が所定蒸気圧となるよう前述のように燃焼用空気制
御弁４および燃料制御弁５を制御して各バーナの燃焼量
を制御している。2. Description of the Related Art Conventionally, for example, a plurality of burners 3 (3
a, 3b, 3c), as shown in FIG. 4, one temperature detector 1 is provided for each furnace or each zone, and the detected temperature is inputted to the temperature control device 2, The burner 3a, 3 is controlled by controlling the opening of the combustion air control valve 4 and the fuel control valve 5 by a control signal so that the temperature becomes a predetermined temperature.
The combustion amounts of b and 3c are controlled. Further, in a boiler provided with a plurality of burners, one steam pressure detector 1 'is provided, and the detected pressure is input to a steam pressure adjusting device 2' so that the inside of the boiler has a predetermined steam pressure as described above. The combustion air control valve 4 and the fuel control valve 5 are controlled to control the amount of combustion of each burner.
【０００３】[0003]
【発明が解決しようとする課題】そして、炉内温度分布
の改善あるいは帯域での温度分布、さらには、低ＮＯX
化等のため各バーナの空気比を変更したい場合には、従
来、各バーナに設けた補正弁６を調整して対処している
が、１つのバーナを調整すると、他のバーナの燃焼量ま
たは空気量が変動するため、この調整作業は面倒である
とともに、熟練を要する。また、再現性が得られないと
いう課題を有していた。したがって、本発明は、簡単な
操作で、炉内温度（あるいはボイラの蒸気圧）に対応し
て、各バーナの燃焼状態を適宜、正確に変更することの
できるバーナ制御装置を提供することを目的とする。[SUMMARY OF THE INVENTION Then, the temperature distribution in the improvement or zone of the furnace temperature distribution, and further, low NO X
Conventionally, when it is desired to change the air ratio of each burner, for example, by adjusting the correction valve 6 provided in each burner, if one burner is adjusted, the combustion amount of the other burner or Since the amount of air fluctuates, this adjustment operation is troublesome and requires skill. In addition, there is a problem that reproducibility cannot be obtained. Therefore, an object of the present invention is to provide a burner control device capable of appropriately and accurately changing the combustion state of each burner in accordance with the furnace temperature (or the steam pressure of the boiler) with a simple operation. And
【０００４】[0004]
【課題を解決するための手段】前記目的を達成するため
に、第１の発明では、１つの温度検出手段を備えた温度
調節装置からの信号により、燃焼用空気制御弁および燃
料制御弁を作動させて、複数のバーナの燃焼状態を制御
するバーナ制御装置において、複数の燃焼量偏差パター
ンと空気比偏差パターンを備え、前記各バーナ毎に前記
パターンを選択でき、かつ、前記温度調節装置からの信
号により、選択されたパターンにもとづく各バーナへの
燃焼用空気量，燃料量を示す制御信号を演算して出力す
る第１演算装置と、前記各バーナに設けられ、前記制御
信号からの信号によりバーナの燃焼用空気制御弁および
燃料制御弁の開度を制御する制御信号を演算する第２演
算装置とで構成し、第２の発明では、ボイラ内の蒸気圧
を検出する蒸気圧検出手段を備えた蒸気圧調節装置から
の信号により、燃焼用空気制御弁および燃料制御弁を作
動させて、複数のバーナの燃焼状態を制御するバーナ制
御装置において、少なくとも複数の空気比偏差パターン
を備え、前記各バーナ毎に前記パターンを選択でき、か
つ、前記蒸気圧調節装置からの信号により、選択された
パターンにもとづく各バーナへの燃焼用空気量，燃料量
を示す制御信号を演算して出力する第１演算装置と、前
記各バーナに設けられ、前記制御信号からの信号により
バーナの燃焼用空気制御弁および燃料制御弁の開度を制
御する制御信号を演算する第２演算装置とで構成したも
のである。According to a first aspect of the present invention, a combustion air control valve and a fuel control valve are operated by a signal from a temperature control device having one temperature detecting means. In the burner control device that controls the combustion state of the plurality of burners, the burner control device includes a plurality of combustion amount deviation patterns and an air ratio deviation pattern, the pattern can be selected for each of the burners, and A first arithmetic unit for calculating and outputting a control signal indicating a combustion air amount and a fuel amount to each burner based on the selected pattern based on the signal; and a first arithmetic unit provided for each burner and receiving a signal from the control signal. A second arithmetic unit for calculating a control signal for controlling the opening of the combustion air control valve and the fuel control valve of the burner; and in the second invention, a steam pressure for detecting a steam pressure in the boiler. In the burner control device that controls the combustion state of the plurality of burners by operating the combustion air control valve and the fuel control valve according to a signal from the steam pressure adjusting device provided with the discharging means, at least a plurality of air ratio deviation patterns are determined. The pattern can be selected for each of the burners, and a control signal indicating a combustion air amount and a fuel amount to each burner based on the selected pattern is calculated based on a signal from the steam pressure adjusting device. A first arithmetic unit for outputting a signal, and a second arithmetic unit provided in each burner for calculating a control signal for controlling the opening of the combustion air control valve and the fuel control valve of the burner based on a signal from the control signal. It is composed.
【０００５】[0005]
【実施例】つぎに、本発明の実施例を図１にしたがって
説明する。図から明らかなように、第１発明において
は、温度調節装置２からの信号は第１演算装置７に入力
され、その出力信号は、各バーナ３ａ〜３ｃに設けられ
た第２演算装置１０に入力され、各燃焼用空気制御弁４
および燃料制御弁５の開度を調節するようになってい
る。Next, an embodiment of the present invention will be described with reference to FIG. As is clear from the figure, in the first invention, a signal from the temperature control device 2 is input to the first arithmetic device 7, and an output signal thereof is sent to the second arithmetic device 10 provided in each of the burners 3a to 3c. Input to each combustion air control valve 4
The opening of the fuel control valve 5 is adjusted.
【０００６】すなわち、前記第１演算装置７には、図２
および図３に示すように、複数の燃焼量偏差パターン８
と空気比偏差パターン９が記憶されており、あらかじ
め、各バーナ３ａ〜３ｃ毎にそのパターンを割当ててあ
る。ここで、燃焼量偏差パターンは、温度調節装置出力
に対する燃料量に対応する燃焼量係数の関係を示し、例
えばあるバーナがパターンＤに基づき制御されている場
合において、目標温度が現状より高いか、低いかにより
パターンＥ或いはＢが選択されるようになっている。さ
らに、目標とする温度のパターンに従ってＡ或いはＣが
選択されることになる。また、空気比偏差パターンは、
上記燃焼量係数に対する空気比の関係を示し、同じ燃焼
量であっても、例えば均熱時のように空気比を下げたい
場合には、例えばパターンニで制御していたのをパター
ンハを選択して、これに基づきバーナの制御が行われ
る。That is, the first arithmetic unit 7 has the configuration shown in FIG.
As shown in FIG. 3 and FIG.
And the air ratio deviation pattern 9 are stored in advance and assigned to each of the burners 3a to 3c. Here, the combustion amount deviation pattern indicates a relationship between the combustion amount coefficient corresponding to the fuel amount and the output of the temperature control device. For example, when a certain burner is controlled based on the pattern D, whether the target temperature is higher than the current state, The pattern E or B is selected depending on whether it is low. Further, A or C is selected according to the target temperature pattern. The air ratio deviation pattern is
Shows the relationship of the air ratio to the above combustion amount coefficient, and if the same combustion amount is desired, for example, if it is desired to lower the air ratio as in the case of soaking, select Pattern C, which was controlled by Pattern D, for example. Then, the burner is controlled based on this.
【０００７】したがって、温度検出器１により検出され
た炉内温度にもとづく前記温度調節装置２からの信号に
よって、各バーナ３ａ〜３ｃの第２演算装置１０には、
その割当てられた各パターン８，９にもとづく第１演算
装置７からの出力信号が入力され、各バーナ３ａ〜３ｃ
の燃焼用空気量、燃料量が演算され、その演算にもとづ
く信号により各バーナ３ａ〜３ｃの燃焼用空気制御弁４
および燃料制御弁５が開閉し、燃焼状態を制御する。Therefore, the signal from the temperature control device 2 based on the furnace temperature detected by the temperature detector 1 causes the second arithmetic device 10 of each of the burners 3a to 3c to:
Output signals from the first arithmetic unit 7 based on the assigned patterns 8 and 9 are input, and the burners 3a to 3c are input.
Is calculated, and a signal based on the calculation is used to calculate the combustion air control valve 4 of each of the burners 3a to 3c.
And the fuel control valve 5 opens and closes to control the combustion state.
【０００８】なお、図２，図３では、パターン数を５種
類としたが、これに限定するものでない。Although FIGS. 2 and 3 show five patterns, the number of patterns is not limited to five.
【０００９】また、バーナ３ａ〜３ｃ毎のパターンの組
合せをタイマ等で変更し、炉全体あるいは帯域毎の燃焼
量や空気比を一定とし、バーナ毎の燃焼量や空気比を周
期的に変更し、炉内ガスの撹拌による伝熱効率の改善や
低ＮＯｘ化を図ることもできる。The combination of patterns for each of the burners 3a to 3c is changed by a timer or the like, the combustion amount and the air ratio for the entire furnace or each zone are kept constant, and the combustion amount and the air ratio for each burner are periodically changed. In addition, the heat transfer efficiency can be improved and the NOx can be reduced by stirring the gas in the furnace.
【００１０】前記第１発明においては、加熱炉における
バーナの制御について述べたが、第２発明にあっては、
前記温度検出手段１を、ボイラ内に設置した蒸気圧検出
手段１′に、温度調節装置２を蒸気圧調節装置２′と
し、設定蒸気圧との差によりバーナ３ａ，３ｂ，３ｃ
を、たとえば燃料の種類の変更にもとづき予め選択され
たパターンにより制御燃焼させればよい。前記の場合、
燃焼量パターンは１種とし、空気比パターンを種々の偏
差パターンとし、全バーナの空気比を一定とし、各バー
ナの空気比パターンを異ならしめてＮＯXの低減を図る
ようにしてもよい。[0010] In the first invention, the control of the burner in the heating furnace has been described.
The temperature detecting means 1 is replaced by a steam pressure detecting means 1 'installed in the boiler, and the temperature adjusting device 2 is changed to a steam pressure adjusting device 2'. The burners 3a, 3b, 3c are determined by the difference from the set steam pressure.
May be controlled and burned in a pattern selected in advance based on, for example, a change in the type of fuel. In the above case,
Combustion amount pattern is a one, the air ratio pattern with various deviation pattern, and a constant air ratio of the entire burner may be reduced made different air ratio pattern NO X of each burner.
【００１１】[0011]
【発明の効果】以上の説明で明らかなように、本発明に
よれば、各バーナの燃焼状態は、第１演算装置に組込ま
れた複数の燃焼量偏差パターンと空気比偏差パターンの
うち、選択されたパターンにより、温度（蒸気圧）検出
手段により得られた温度（蒸気圧）信号に対応した状態
に制御されることになる。したがって、熟練者でなくと
も、外部からパターンを選択することにより簡単，容易
に、かつ、確実に再現性をもって各バーナの燃焼状態を
変更することができる。As apparent from the above description, according to the present invention, the combustion state of each burner is selected from a plurality of combustion amount deviation patterns and air ratio deviation patterns incorporated in the first arithmetic unit. The pattern thus controlled is controlled to a state corresponding to the temperature (steam pressure) signal obtained by the temperature (steam pressure) detecting means. Therefore, even if it is not a skilled person, the combustion state of each burner can be changed simply, easily and reliably with reproducibility by selecting a pattern from the outside.
【図面の簡単な説明】[Brief description of the drawings]
【図１】 本発明にかかるバーナ制御装置を示す説明
図。FIG. 1 is an explanatory diagram showing a burner control device according to the present invention.
【図２】 燃焼量偏差パターンを示す図。FIG. 2 is a diagram showing a combustion amount deviation pattern.
【図３】 空燃比偏差パターンを示す図。FIG. 3 is a diagram showing an air-fuel ratio deviation pattern.
【図４】 従来のバーナ制御装置を示す説明図。FIG. 4 is an explanatory view showing a conventional burner control device.
１…温度検出手段、１′…蒸気圧検出手段、２…温度調
節装置、２′…蒸気圧調節装置、３ａ，３ｂ，３ｃ…バ
ーナ、４…燃焼用空気制御弁、５…燃料制御弁、７…第
１演算装置、８…燃焼量偏差パターン、９…空気比偏差
パターン、１０…第２演算装置。DESCRIPTION OF SYMBOLS 1 ... Temperature detection means, 1 '... Steam pressure detection means, 2 ... Temperature regulation apparatus, 2' ... Steam pressure regulation apparatus, 3a, 3b, 3c ... Burner, 4 ... Combustion air control valve, 5 ... Fuel control valve, 7: first arithmetic unit, 8: combustion amount deviation pattern, 9: air ratio deviation pattern, 10: second arithmetic unit.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中垣 弘司 大阪府大阪市西区京町堀２丁目４番７号 中外炉工業株式会社内 (72)発明者 田中 祐三 大阪府大阪市西区京町堀２丁目４番７号 中外炉工業株式会社内 (72)発明者 一楽 祐一 大阪府大阪市中央区平野町４丁目１番２ 号 大阪瓦斯株式会社内 (72)発明者 佐伯 孝敏 大阪府大阪市中央区平野町４丁目１番２ 号 大阪瓦斯株式会社内 (56)参考文献 特開 平３−28624（ＪＰ，Ａ) 特開 平４−340019（ＪＰ，Ａ) 特公 昭63−67095（ＪＰ，Ｂ２) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Nakagaki 2-4-7, Kyomachibori, Nishi-ku, Osaka-shi, Osaka Inside Chugai Furnace Industry Co., Ltd. (72) Yuzo Tanaka 2-4-2, Kyomachibori, Nishi-ku, Osaka-shi, Osaka No. 7 Inside Chugai Furnace Industry Co., Ltd. (72) Inventor Yuichi Ichira 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi, Osaka Inside Osaka Gas Co., Ltd. 4-1-2 cho, Osaka Gas Co., Ltd. (56) References JP-A-3-28624 (JP, A) JP-A-4-340019 (JP, A) JP-B-63-67095 (JP, B2)
Claims (2)
置からの信号により、燃焼用空気制御弁および燃料制御
弁を作動させて、複数のバーナの燃焼状態を制御するバ
ーナ制御装置において、複数の燃焼量偏差パターンと空
気比偏差パターンを備え、前記各バーナ毎に前記パター
ンを選択でき、かつ、前記温度調節装置からの信号によ
り、選択されたパターンにもとづく各バーナへの燃焼用
空気量，燃料量を示す制御信号を演算して出力する第１
演算装置と、前記各バーナに設けられ、前記制御信号か
らの信号によりバーナの燃焼用空気制御弁および燃料制
御弁の開度を制御する制御信号を演算する第２演算装置
とで構成したことを特徴とするバーナ制御装置。1. A burner control device for controlling a combustion state of a plurality of burners by operating a combustion air control valve and a fuel control valve in response to a signal from a temperature control device having one temperature detecting means. A combustion amount deviation pattern and an air ratio deviation pattern, the pattern can be selected for each of the burners, and the amount of combustion air to each burner based on the selected pattern based on a signal from the temperature control device. A first control signal for calculating and outputting a control signal indicating the fuel amount;
An arithmetic unit and a second arithmetic unit provided in each of the burners and configured to calculate a control signal for controlling an opening of a combustion air control valve and a fuel control valve of the burner based on a signal from the control signal. Features burner control device.
手段を備えた蒸気圧調節装置からの信号により、燃焼用
空気制御弁および燃料制御弁を作動させて、複数のバー
ナの燃焼状態を制御するバーナ制御装置において、少な
くとも複数の空気比偏差パターンを備え、前記各バーナ
毎に前記パターンを選択でき、かつ、前記蒸気圧調節装
置からの信号により、選択されたパターンにもとづく各
バーナへの燃焼用空気量，燃料量を示す制御信号を演算
して出力する第１演算装置と、前記各バーナに設けら
れ、前記制御信号からの信号によりバーナの燃焼用空気
制御弁および燃料制御弁の開度を制御する制御信号を演
算する第２演算装置とで構成したことを特徴とするバー
ナ制御装置。2. A combustion air control valve and a fuel control valve are actuated by a signal from a steam pressure adjusting device provided with a steam pressure detecting means for detecting a steam pressure in a boiler, and a combustion state of a plurality of burners is determined. In the burner control device for controlling, at least a plurality of air ratio deviation patterns are provided, the pattern can be selected for each of the burners, and a signal from the steam pressure adjusting device controls each burner based on the selected pattern. A first arithmetic unit for calculating and outputting control signals indicating a combustion air amount and a fuel amount; and a burner air control valve and a fuel control valve of the burner are opened by a signal from the control signal provided in each of the burners. A burner control device, comprising: a second calculation device that calculates a control signal for controlling the degree.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28618291 | 1991-10-31 | ||
| JP3-286182 | 1991-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05180433A JPH05180433A (en) | 1993-07-23 |
| JP2612985B2 true JP2612985B2 (en) | 1997-05-21 |
Family
ID=17701011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3324326A Expired - Lifetime JP2612985B2 (en) | 1991-10-31 | 1991-12-09 | Burner control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2612985B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08249070A (en) * | 1995-03-08 | 1996-09-27 | Daishin Kogyo Kenkyusho:Kk | Gas flow rate controller |
| JP2024042824A (en) * | 2022-09-16 | 2024-03-29 | 三菱重工業株式会社 | Boiler control device, boiler control method, and boiler control program |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6367095A (en) * | 1986-09-08 | 1988-03-25 | Nec Corp | Power source separating system in trunk control |
| JP2774150B2 (en) * | 1989-06-26 | 1998-07-09 | バブコツク日立株式会社 | Multi-stage combustion method |
-
1991
- 1991-12-09 JP JP3324326A patent/JP2612985B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05180433A (en) | 1993-07-23 |
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