JPH01114615A - Automatic correcting device for air register - Google Patents
Automatic correcting device for air registerInfo
- Publication number
- JPH01114615A JPH01114615A JP62272299A JP27229987A JPH01114615A JP H01114615 A JPH01114615 A JP H01114615A JP 62272299 A JP62272299 A JP 62272299A JP 27229987 A JP27229987 A JP 27229987A JP H01114615 A JPH01114615 A JP H01114615A
- Authority
- JP
- Japan
- Prior art keywords
- opening
- signal
- air register
- degree
- program
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/08—Regulating air supply or draught by power-assisted systems
- F23N3/082—Regulating air supply or draught by power-assisted systems using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/02—Air or combustion gas valves or dampers
- F23N2235/06—Air or combustion gas valves or dampers at the air intake
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)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、ボイラ燃焼用油バーナに空気を供給スるため
のエアレジスタの自動補正装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic correction device for an air register for supplying air to an oil burner for boiler combustion.
[従来の技術]
ボイラの燃焼装置には、燃料と共にエアレジスタによっ
て空気が供給されて火炎の安定と燃焼空気の供給のタイ
ミングが調整されており、このエアレジスタの開度の変
化によって燃焼状況は大きく変化する。[Prior Art] Air is supplied to the combustion device of a boiler along with fuel by an air register to stabilize the flame and adjust the timing of the supply of combustion air, and the combustion status is controlled by changing the opening degree of the air register. Changes greatly.
第2図はエアレジスタの構造を示す説明図である。エア
レジスタ本体aは一方の側面すが閉鎖され、他方の側面
Cに開口部dが形成されており、その外周には複数個の
動翼eが周面に沿って配列され、該動翼eの軸fが前記
側面す、cに回動できるように取り付けられている。前
記軸rはそれぞれモータ9によりリンク機構(図示せず
)等を介して回動され、動翼eが開方向または閉方向に
回動して開度が調整されるようになっている。空気りは
、エアレジスタ本体aの外周接線方向から入り、動翼e
の開度に応じて矢印のように開口部dから出て燃焼装置
(バーナ)へ供給される。FIG. 2 is an explanatory diagram showing the structure of the air register. The air register main body a has one side surface closed and an opening d formed on the other side surface C. A plurality of rotor blades e are arranged along the outer periphery of the air register body a. A shaft f is rotatably attached to the side surfaces A and C. Each of the shafts r is rotated by a motor 9 via a link mechanism (not shown), etc., and the rotor blade e is rotated in the opening direction or the closing direction to adjust the opening degree. Air enters from the tangential direction of the outer circumference of the air register body a, and enters the moving blade e.
According to the degree of opening of , the fuel exits from the opening d as shown by the arrow and is supplied to the combustion device (burner).
[発明が解決しようとする問題点]
上述のようにモータ9により動meを開方向に回転した
際時間の経過と共に第3図に示したA曲線の径路を辿っ
て100%の開度に達する。しかしながら、100%の
開度からモータgを逆回転して動翼eを閉方向に移行さ
せると、その径路が前記A曲線の径路を辿ることなく8
曲線のように外側に湾曲した曲線を描き、A曲線と8曲
線とによりいわゆるヒステリシスループを形成する。こ
のことは、動翼の開方向回動に対して、閉方向回動が遅
れることを示し、エアレジスタからバーナへ供給する空
気量が正確に制御されないことを示している。その結果
、動翼の開方向時と閉方向時においてボイラの燃焼が変
化して燃焼の不安定状態を生じさせる。従来は、このよ
うな動翼の開度は機械的に調整するのみで自動補正する
装置が存在しなかった。[Problems to be Solved by the Invention] As described above, when the motor 9 rotates the movable mechanism in the opening direction, it follows the path of the A curve shown in FIG. 3 over time and reaches 100% opening. . However, when the motor g is reversely rotated from the 100% opening degree to move the rotor blade e in the closing direction, the path does not follow the path of the above-mentioned curve A;
A curve curved outward like a curved line is drawn, and a so-called hysteresis loop is formed by the A curve and the 8 curve. This indicates that the rotation of the rotor blade in the closing direction is delayed with respect to the rotation of the blade in the opening direction, and indicates that the amount of air supplied from the air register to the burner is not accurately controlled. As a result, combustion in the boiler changes between when the rotor blades are opened and when they are closed, resulting in an unstable state of combustion. Conventionally, the opening degree of the rotor blades was only mechanically adjusted, and there was no device that automatically corrected it.
本発明は、エアレジスタの動翼の開方向及び閉方向にお
ける開度の径路のヒステリシスを自動補正する制御回路
装置を提供することを目的としている。SUMMARY OF THE INVENTION An object of the present invention is to provide a control circuit device that automatically corrects the hysteresis of the opening path in the opening and closing directions of the moving blades of an air register.
[問題点を解決するための手段]
本発明は上記の実情に鑑みなされたものであり、エアレ
ジスタ動翼の開度設定器と、該開度設定器の信号により
開閉の方向を判別する方向判別器と、該方向判別器に夫
々接続され、且つ計測値に基づく開方向及び閉方向のそ
れぞれのプログラム信号を入力されたプログラム信号発
生器と、該両信号発生器に接続されて開方向と閉方向の
偏差を補正し、エアレジスタ動翼の駆動モータに信号を
出力する演算器とにより自動補正制御回路を構成したこ
とを特徴とするものである。[Means for Solving the Problems] The present invention has been made in view of the above-mentioned circumstances, and includes an opening setting device for air register rotor blades, and a direction for determining the opening/closing direction based on a signal from the opening setting device. a discriminator, a program signal generator connected to the direction discriminator and input with program signals for the open direction and the close direction based on measured values, and a program signal generator connected to both signal generators for the open direction and the close direction. The present invention is characterized in that an automatic correction control circuit is constituted by an arithmetic unit that corrects the deviation in the closing direction and outputs a signal to the drive motor of the air register rotor blade.
[作 用]
開度設定器に開度を設定する信号を送ると、方向判別器
により開方向か閉方向かが判別され、例えば開方向を基
準とした場合に開の信号が出力されると、開方向のプロ
グラム信号発生器に信号が送られ演算器を経由してモー
タを駆動し、エアレジスタ動翼を設定開度になるように
開方向に回動させる。反対にこのとき、開度設定器に閉
方向の開度を示す信号を送ると方向判別器により閉方向
のプログラム信号発生器に信号が送られ更に演算器に信
号が入る。一方間方向のプログラム信号発生器からも演
算器に信号が入るため、この演算器においてヒステリシ
スによる差分を補正した上でモータに信号を送りエアレ
ジスタ動翼を設定開度になるように閉方向に回動させる
。[Function] When a signal to set the opening degree is sent to the opening setting device, the direction discriminator determines whether it is the open direction or the close direction. For example, if the open direction is used as the reference, an open signal is output. A signal is sent to the program signal generator in the opening direction, which drives the motor via the arithmetic unit to rotate the air register rotor blade in the opening direction to the set opening degree. On the contrary, at this time, when a signal indicating the opening degree in the closing direction is sent to the opening setting device, the direction discriminator sends a signal to the program signal generator for the closing direction, and further a signal is input to the arithmetic unit. On the other hand, since a signal is also input to the computing unit from the program signal generator in the direction, this computing unit corrects the difference due to hysteresis and sends a signal to the motor to move the air register rotor blades in the closing direction to the set opening. Rotate.
[実 施 例] 以下本発明の実施例を添付図面を参照しつつ説明する。[Example] Embodiments of the present invention will be described below with reference to the accompanying drawings.
第1図に本発明の一実施例を示す。lは動翼の開度を設
定するための開度設定器、2は開度の方向が開方向(第
3図のA)か閉方向(第3図のB)かを判別する方向判
別器である。3は、計測値に基づいた開方向プログラム
信号発生器、4は同じく予めデータをとった計測値に基
づく閉方向プログラム信号発生器、5は演算器である。FIG. 1 shows an embodiment of the present invention. 1 is an opening setting device for setting the opening of the moving blade, and 2 is a direction discriminator that determines whether the opening direction is the opening direction (A in Figure 3) or the closing direction (B in Figure 3). It is. 3 is an open direction program signal generator based on a measured value, 4 is a close direction program signal generator based on a measured value whose data is also taken in advance, and 5 is an arithmetic unit.
演算器5は、エアレジスタ動翼6に連結するモータ7に
接続している。The computing unit 5 is connected to a motor 7 connected to an air register rotor blade 6 .
次に動作について説明する。尚、この場合、開方向を基
準にして制御する場合を説明する。Next, the operation will be explained. In this case, a case where control is performed based on the opening direction will be described.
例えば、開度を零から30%に増加するような指令信号
を開度設定器lに入力する。開度設定器1から方向判別
器2へ信号が送られると、該判別器2は増加指令である
ことにより開方向を判別して開方向プログラム信号発生
器3へ信号を。For example, a command signal to increase the opening degree from zero to 30% is input to the opening degree setting device l. When the signal is sent from the opening setting device 1 to the direction discriminator 2, the discriminator 2 determines the opening direction since it is an increase command and sends a signal to the opening direction program signal generator 3.
送る。この場合、該開方向信号発生器3が基準値として
設定されているので、前記開方向信号発生器3からのプ
ログラム信号が演算器5を通ってモータ7へ送られ、エ
アレジスタ動翼6の開度が開方向に30%となるように
モータ7が駆動される。send. In this case, since the opening direction signal generator 3 is set as a reference value, the program signal from the opening direction signal generator 3 is sent to the motor 7 through the computing unit 5, and the air register rotor blade 6 is The motor 7 is driven so that the opening degree is 30% in the opening direction.
また上記状態から、例えば開度を20%とする指令信号
を開度設定器lに入力すると、方向判別器2は減小指令
であることにより閉方向を判別して開方向プログラム信
号発生器4に信号を送り閉方向プログラムが演算器5へ
入力される。Further, from the above state, when a command signal to set the opening degree to 20% is inputted to the opening degree setter 1, the direction discriminator 2 determines the closing direction because it is a decreasing command, and the opening direction program signal generator 4 A signal is sent to the closing direction program and the closing direction program is input to the calculator 5.
一方、基準値として設定された開方向プログラムも信号
発生器3から演算器5へ入力され、該演算器5において
閉方向プログラムの誤差分を加算して信号をモータ7へ
送り動翼6を駆動する。即ち、閉方向プログラム信号発
生器4と演算器5との間は補正回路を形成し常に基準値
と同様のプログラム信号をモータ7に送るために、前述
のヒステリシスが自動的に補正される。また、モータ7
の回転は回転検出計8によって検出してプログラム信号
発生器3,4ヘフイードバツクさせるようにする。On the other hand, the opening direction program set as a reference value is also input from the signal generator 3 to the computing unit 5, where the error of the closing direction program is added up and a signal is sent to the motor 7 to drive the rotor blades 6. do. That is, a correction circuit is formed between the closing direction program signal generator 4 and the arithmetic unit 5, and in order to always send a program signal similar to the reference value to the motor 7, the above-mentioned hysteresis is automatically corrected. Also, motor 7
The rotation is detected by a rotation detector 8 and fed back to the program signal generators 3 and 4.
なお、上述の実施例では開方向プログラム信号発生器3
を基準としたが、反対に閉方向プログラム信号発生器4
を基準とすることもでき、その池水発明の要旨を逸脱し
ない範囲内で種々変更を加え得ることは勿論である。In addition, in the above-mentioned embodiment, the open direction program signal generator 3
However, on the contrary, the closing direction program signal generator 4
It goes without saying that various changes can be made without departing from the gist of the invention.
[発明の効果]
本発明によれば、エアレジスタ動翼の開方向及び閉方向
の開度のヒステリシスが自動補正されるために、バーナ
へ供給される空気量が正確に制御され燃焼が安定し、ま
た窒素酸化物の発生も抑制できる等種々の優れた効果を
奏し得る。[Effects of the Invention] According to the present invention, since the hysteresis of the opening degree of the air register rotor blade in the opening direction and the closing direction is automatically corrected, the amount of air supplied to the burner is accurately controlled and combustion is stabilized. , and can also exhibit various excellent effects such as being able to suppress the generation of nitrogen oxides.
第1図は本発明の一実施例の自動補正装置のブロック図
、第2図はエアレジスタの構造説明図、第3図は開方向
及び閉方向動翼開度関係図である。
図中1は開度設定器、2は方向判別器、3は開方向プロ
グラム信号発生器、4は閉方向プログラム信号発生器、
5は演算器、6はエアレジスタ動翼、7はモータを示す
。FIG. 1 is a block diagram of an automatic correction device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of the structure of an air register, and FIG. 3 is a diagram showing the relationship between the openings of rotor blades in the opening direction and the closing direction. In the figure, 1 is an opening setting device, 2 is a direction discriminator, 3 is an open direction program signal generator, 4 is a close direction program signal generator,
5 is a computing unit, 6 is an air register rotor blade, and 7 is a motor.
Claims (1)
信号により開閉の方向を判別する方向判別器と、該方向
判別器に夫々接続され、且つ計測値に基づく開方向及び
閉方向のそれぞれのプログラム信号を入力されたプログ
ラム信号発生器と、該両信号発生器に接続されて開方向
と閉方向の偏差を補正し、エアレジスタ動翼の駆動モー
タに信号を出力する演算器とにより自動補正制御回路を
構成したことを特徴とするエアレジスタの自動補正装置
。1) An opening setting device for air register rotor blades, a direction discriminator that determines the opening/closing direction based on a signal from the opening setting device, and an opening direction and closing device connected to the direction discriminator and based on measured values. A program signal generator that receives program signals for each direction, and a computing unit that is connected to both signal generators, corrects deviations in the open direction and close direction, and outputs signals to the drive motor of the air register rotor blade. An automatic correction device for an air register, characterized in that an automatic correction control circuit is configured by the following.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62272299A JPH01114615A (en) | 1987-10-28 | 1987-10-28 | Automatic correcting device for air register |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62272299A JPH01114615A (en) | 1987-10-28 | 1987-10-28 | Automatic correcting device for air register |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01114615A true JPH01114615A (en) | 1989-05-08 |
Family
ID=17511933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62272299A Pending JPH01114615A (en) | 1987-10-28 | 1987-10-28 | Automatic correcting device for air register |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01114615A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2343481A3 (en) * | 2010-01-08 | 2014-10-08 | Tonwerk Lausen AG | Actuated combustion air damper |
JP2015078783A (en) * | 2013-10-15 | 2015-04-23 | 株式会社Ihi | Vane opening measuring apparatus and hysteresis curve formation method |
-
1987
- 1987-10-28 JP JP62272299A patent/JPH01114615A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2343481A3 (en) * | 2010-01-08 | 2014-10-08 | Tonwerk Lausen AG | Actuated combustion air damper |
JP2015078783A (en) * | 2013-10-15 | 2015-04-23 | 株式会社Ihi | Vane opening measuring apparatus and hysteresis curve formation method |
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