EP0223193A1 - Control method for a burner arrangement - Google Patents

Control method for a burner arrangement Download PDF

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Publication number
EP0223193A1
EP0223193A1 EP86115681A EP86115681A EP0223193A1 EP 0223193 A1 EP0223193 A1 EP 0223193A1 EP 86115681 A EP86115681 A EP 86115681A EP 86115681 A EP86115681 A EP 86115681A EP 0223193 A1 EP0223193 A1 EP 0223193A1
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EP
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Prior art keywords
burner
control
air
combustion
fuel
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Granted
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EP86115681A
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German (de)
French (fr)
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EP0223193B1 (en
Inventor
Wolfdieter Klein
Lothar Dittmann
Erich Koslowski
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Veba Oel Technologie und Automatisierung GmbH
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Veba Oel Technologie und Automatisierung GmbH
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Priority to AT86115681T priority Critical patent/ATE50356T1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/16—Measuring temperature burner temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2237/00—Controlling
    • F23N2237/02—Controlling two or more burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2239/00—Fuels
    • F23N2239/06—Liquid fuels

Definitions

  • the invention relates to a control system for a burner arrangement with individual burners connected in parallel for the combustion of liquid fuels with air and a fuel return.
  • a method in which a certain combustion temperature can be maintained in a controllable manner in a burner arrangement and in which the ratio of air to liquid fuel can be controlled is described, for example, in WO 84/02402.
  • the combustion in a process furnace is regulated in that the supply of liquid fuel and combustion air are actuated by means of pneumatic control elements which modify a signal for both an air damper and a control valve for the liquid fuel .
  • the amount of liquid fuel supplied is regulated by changing the form of the liquid fuel. They have the disadvantage that the drop spectrum in the atomization of the liquid also changes with the change in the form Fuel changes.
  • These systems are also operated as multi-stage burners with different load ranges.
  • the atomization of the liquid fuel takes place without the aid of gaseous atomization aids.
  • the fuel throughput can be increased within wide limits, but the simultaneous provision of the combustion air required to avoid excess fuel in the required ratio of fuel to combustion air poses a particular control problem.
  • FIG. 1 An R and I diagram of the proposed regulation for a burner arrangement of the type specified at the outset is shown in FIG. 1 of the drawing.
  • the reference symbols have the meaning given in the description.
  • FIG. 2 An application of the specified regulation, for example as a thermal afterburning system for combustible exhaust gas mixtures, is illustrated in FIG. 2, the meaning of the reference symbols also being apparent from the description above.
  • the pictograms still provided with code letters correspond to the DIN standard l9 227.
  • the reference variable for the burner control is the combustion chamber temperature. It can be detected by one or more temperature measuring points arranged in the combustion chamber and it can be freely selected within certain limits by means of a target value adjustment.
  • the temperature measurement e.g. B. by means of temperature measuring point l in the burner chamber l0 acts by means of a temperature controller 2 on a control valve 3 in the return ll for the liquid fuel, with the control valve in the closed position more or in the open position less fuel is supplied to the combustion chamber l0.
  • a temperature controller 2 e.g. the open position of the control valve 3 opened 80% and the closed position of the control valve 3 opened 20%.
  • the control is designed so that when control valve 3 is in the up position, the maximum amount of fuel is returned via the fuel return line 11 and a burner is switched off.
  • control valve 3 is closed, a burner is switched on.
  • the burner is switched off or on via a control 8 and can be connected in a known manner, for. B.
  • control valve 3 The pressure in the return line 11 for the liquid fuel also changes in proportion to the position of control valve 3. This pressure change is detected by a pressure measurement by means of pressure measuring point 4 and serves as a reference variable for regulating the amount of combustion air supplied via a regulator 6 acting as a ratio regulator for metering combustion air by means of control valve 7.
  • the amount of combustion air is proportional to the pressure in the air box l5.
  • the ratio control by means of controller 6, the air supply for optimal combustion of the fuel.
  • the air pressure in the air box is regulated by the adjustment of the regulator flap 7 to the desired value, which is predetermined by the ratio regulator 6.
  • a control ratio for the fuel of 1: 1 to 5: 1 per burner can be achieved, e.g. B. Minimum oil throughput per burner 5 kg / h and maximum oil throughput 25 kg / h. The minimum and maximum amount of oil throughput can be determined by selecting the diameter of the burner nozzles.
  • the proposed regulation for a burner arrangement of the type mentioned at the beginning allows the regulation ratio for the fuel to be increased considerably from 1: 1 to 5: 1 expand, e.g. B. when installing 10 burners on l: l to 50: l.
  • each burner l2, l2 ⁇ etc. is individually controlled with the controller 8 and supplied via burner valve l3, l3 ⁇ etc. and burner air flap l4, l4 ⁇ etc. with the specified amount of fuel or combustion air.
  • the valve position of the control valve 3 in the common return line 11 for the liquid fuel serves as a reference variable for switching the individual burners on or off via the control 8. For example, it can be provided that when the control valve 3 is in the 80% closed position, a burner is added in the return of the liquid fuel.
  • the ratio control 6 between the pressure measurement 4 in the fuel return 11 and the pressure measurement 5 in the air box l5 the air pressure in the air box l5 is readjusted to the desired value specified in the ratio controller 6. For this purpose, the control valve or flap 7 is adjusted accordingly.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

1. Control method for a burner arrangement with individual burners connected in parallel for the combustion of liquid fuels with air and a fuel return, having the following features : a) reference variable for the burner control is the combustion chamber temperature, which can be freely selected within certain limits by means of a set value adjustment and is sensed by a temperature measurement point (1), b) the combustion chamber temperature acts by means of a temperature controller (2) on a control fitting (3) in the fuel return, c) the pressure change in the fuel return effected by changing the position of the control fitting (3) is sensed by means of a pressure measuring point (4) and used as reference variable via a controller (6), acting as ratio control, for the metering of combustion air by means of control fitting (7), d) by means of a pressure measuring point (5), the pressure of the combustion air in an air box or the like, serving to supply all of the individual burners, is sensed and used as follow-up variable in controller (6) for the metering of the combustion air and e) the position of the control fitting (3) in the fuel return effects via a control (8) in closed position the cutting-in of a burner and in open position the cutting-out of a burner, by the fittings assigned to the respective burner being switched accordingly for the supply with fuel and combustion air.

Description

Die Erfindung betrifft eine Regelung für eine Brenneranordnung mit parallel geschalteten Einzelbrennern zur Verbrennung flüssiger Brennstoffe mit Luft und einem Brennstoffrücklauf.The invention relates to a control system for a burner arrangement with individual burners connected in parallel for the combustion of liquid fuels with air and a fuel return.

Ein Verfahren, bei dem bei einer Brenneranordnung eine bestimmte Verbrennungstemperatur regelbar eingehalten werden kann und bei welchem das Verhältnis von Luft zu flüssigem Brennstoff geregelt werden kann, ist beispielsweise in WO 84/02402 beschrieben. Bei diesem in WO 84/02402 beschriebenen System wird die Verbrennung in einem Prozeßofen dadurch geregelt, daß die Zufuhr von flüssigem Brennstoff und Verbrennungsluft mittels pneumatischer Steuerelemente, die ein Signal sowohl für eine Luftklappe als auch für ein Regelventil für den flüssigen Brennstoff modifizieren, beaufschlagt werden.A method in which a certain combustion temperature can be maintained in a controllable manner in a burner arrangement and in which the ratio of air to liquid fuel can be controlled is described, for example, in WO 84/02402. In this system described in WO 84/02402, the combustion in a process furnace is regulated in that the supply of liquid fuel and combustion air are actuated by means of pneumatic control elements which modify a signal for both an air damper and a control valve for the liquid fuel .

Bei Brennersystemen mit Vorlaufdüsen erfolgt die Regelung der zugeführten Menge des flüssigen Brennstoffes durch Änderung des Vordruckes des flüssigen Brennstoffes. Sie haben den Nachteil, daß sich mit der Änderung des Vordruckes auch das Tropfenspektrum bei der Verdüsung des flüssigen Brennstoffes ändert. Als Regelungsverhältnis in der Menge des zugeführten flüssigen Brennstoffes ist ein Bereich von etwa l : l bis 3 : l, d. h. z. B. minimaler Öldurchsatz pro Brenner 5 kg/h und maximaler Öldurchsatz pro Brenner l5 kg/h, möglich. Diese Systeme werden auch als Mehrstufenbrenner mit verschiedenen Lastbereichen betrieben.In burner systems with flow nozzles, the amount of liquid fuel supplied is regulated by changing the form of the liquid fuel. They have the disadvantage that the drop spectrum in the atomization of the liquid also changes with the change in the form Fuel changes. A range of approximately 1: 1 to 3: 1, that is, for example, minimum oil throughput per burner 5 kg / h and maximum oil throughput per burner l5 kg / h, is possible as a control ratio in the amount of the liquid fuel supplied. These systems are also operated as multi-stage burners with different load ranges.

Bei Brennersystemen mit Rücklaufdüsen bleibt der Vordruck in der Düse nahezu konstant. Das Tropfenspektrum bei der Verdüsung des flüssigen Brennstoffes bleibt unverändert. Die Erhöhung des Durchsatzes an flüssigem Brennstoff erfolgt durch die Drosselung des Rücklaufstromes. Hier ist ein größerer Bereich des Regelungsverhältnisses nämlich von etwa l : l bis 5 : l möglich.In burner systems with return nozzles, the admission pressure in the nozzle remains almost constant. The drop spectrum in the atomization of the liquid fuel remains unchanged. The throughput of liquid fuel is increased by throttling the return flow. A larger range of the control ratio is possible here, namely from about 1: 1 to 5: 1.

Bei geeigneter Wahl des Vordruckes und der Drallströmung in der Düse erfolgt die Verdüsung des flüssigen Brennstoffes ohne Zuhilfenahme gasförmiger Verdüsungshilfen.With a suitable choice of the admission pressure and the swirl flow in the nozzle, the atomization of the liquid fuel takes place without the aid of gaseous atomization aids.

Durch Parallelschaltung mehrerer Einzelbrenner kann zwar der Brennstoffdurchsatz in weiten Grenzen erhöht werden, jedoch liegt in der gleichzeitigen Bereitstellung der zur Vermeidung von Brennstoffüberschuß erforderlichen Verbrennungsluft in dem geforderten Verhältnis von Brennstoff zu Verbrennungsluft ein insbesondere regelungstechnisches Problem.By connecting several individual burners in parallel, the fuel throughput can be increased within wide limits, but the simultaneous provision of the combustion air required to avoid excess fuel in the required ratio of fuel to combustion air poses a particular control problem.

Hier setzt die Erfindung ein, mit der die Aufgabe gelöst wird, eine Brennersteuerung mit einem in weiten Grenzen variierbaren Regelungsverhältnis in der Brennstoffmenge bei einem konstanten vorwählbaren Brennstoff-Verbrennungsluft-Verhältnis zur Verfügung zu stellen.This is where the invention comes in, with which the object is achieved to provide a burner control unit with a control ratio in the fuel quantity which can be varied within wide limits and with a constant preselectable fuel / combustion air ratio.

Diese Aufgabe wird dadurch gelöst, daß bei einer Brennerregelung der eingangs angegebenen Art die in dem Kennzeichen des Patentanspruches angegebenen Merkmale verwirklicht sind.This object is achieved in that the features specified in the characterizing part of the claim are realized in a burner control of the type specified at the outset.

Ein R- und I-Schema der vorgeschlagenen Regelung für eine Brenneranordnung der eingangs angegebenen Art ist in Figur l der Zeichnung dargestellt. Die Bezugszeichen haben die in der Beschreibung angegebene Bedeutung.An R and I diagram of the proposed regulation for a burner arrangement of the type specified at the outset is shown in FIG. 1 of the drawing. The reference symbols have the meaning given in the description.

Eine Anwendung der angegebenen Regelung beispielsweise als thermische Nachverbrennungsanlage für verbrennbare Abgasgemische ist in Figur 2 illustriert, wobei die Bedeutung der Bezugszeichen ebenfalls der vorstehenden Beschreibung zu entnehmen ist. Die noch mit Kennbuchstaben versehenen Bildzeichen entsprechen der DIN-Norm l9 227.An application of the specified regulation, for example as a thermal afterburning system for combustible exhaust gas mixtures, is illustrated in FIG. 2, the meaning of the reference symbols also being apparent from the description above. The pictograms still provided with code letters correspond to the DIN standard l9 227.

Führungsgröße für die vorliegende Brennerregelung ist die Brennkammertemperatur. Sie kann durch eine oder mehrere in dem Brennraum angeordnete Temperaturmeßstellen erfaßt werden und sie ist über eine Soll-Wert-Verstellung innerhalb bestimmter Grenzen frei wählbar.The reference variable for the burner control is the combustion chamber temperature. It can be detected by one or more temperature measuring points arranged in the combustion chamber and it can be freely selected within certain limits by means of a target value adjustment.

Die Temperaturmessung, z. B. mittels Temperaturmeßstelle l in der Brennerkammer l0 wirkt mittels eines Temperaturreglers 2 auf eine Regelarmatur 3 im Rücklauf ll für den flüssigen Brennstoff, wobei durch die Regelarmatur bei Zu-Stellung mehr bzw. bei Auf-Stellung weniger Brennstoff der Brennkammer l0 zugeführt wird. Hierbei bedeutet z. B. die Auf-Stellung der Regelarmatur 3 80 % geöffnet und die Zu-Stellung der Regelarmatur 3 20 % geöffnet. Die Regelung ist so konzipiert, daß bei Auf-Stellung von Regelarmatur 3 die maximale Brennstoffmenge über den Brennstoffrücklauf ll zurückgeführt wird und ein Brenner abgeschaltet wird. Bei Zu-Stellung von Regelarmatur 3 wird ein Brenner hinzugeschaltet. Das Ab- bzw. Hinzuschalten von Brennern erfolgt über eine Steuerung 8 und kann in bekannter Weise z. B. mittels Magnetventilen und pneumatischer Hilfsenergie bewirkt werden. Proportional zur Stellung von Regelarmatur 3 ändert sich auch der Druck in der Rücklaufleitung ll für den flüssigen Brennstoff. Diese Druckänderung wird durch eine Druckmessung mittels Druckmeßstelle 4 erfaßt und dient als Führungsgröße für die Regelung der zugeführten Menge Verbrennungsluft über einen als Verhältnisregelung wirkenden Regler 6 für die Zudosierung von Verbrennungsluft mittels Regelarmatur 7.The temperature measurement, e.g. B. by means of temperature measuring point l in the burner chamber l0 acts by means of a temperature controller 2 on a control valve 3 in the return ll for the liquid fuel, with the control valve in the closed position more or in the open position less fuel is supplied to the combustion chamber l0. Here means z. B. the open position of the control valve 3 opened 80% and the closed position of the control valve 3 opened 20%. The control is designed so that when control valve 3 is in the up position, the maximum amount of fuel is returned via the fuel return line 11 and a burner is switched off. When control valve 3 is closed, a burner is switched on. The burner is switched off or on via a control 8 and can be connected in a known manner, for. B. by means of solenoid valves and pneumatic auxiliary energy. The pressure in the return line 11 for the liquid fuel also changes in proportion to the position of control valve 3. This pressure change is detected by a pressure measurement by means of pressure measuring point 4 and serves as a reference variable for regulating the amount of combustion air supplied via a regulator 6 acting as a ratio regulator for metering combustion air by means of control valve 7.

Die Verbrennungsluftmenge ist proportional dem Druck im Luftkasten l5. Durch die proportionalen Zusammenhänge von Druck in der Brennstoffrücklaufleitung ll und Druck im Luftkasten kann durch die Verhältnisregelung mittels Regler 6 die Luftversorgung für eine optimale Verbrennung des Brennstoffes sichergestellt werden. Der Luftdruck im Luftkasten wird durch die Verstellung der Reglerklappe 7 auf den Sollwert, der durch den Verhältnisregler 6 vorgegeben wird, geregelt.The amount of combustion air is proportional to the pressure in the air box l5. By the proportional Relationships between pressure in the fuel return line II and pressure in the air box can be ensured by the ratio control by means of controller 6, the air supply for optimal combustion of the fuel. The air pressure in the air box is regulated by the adjustment of the regulator flap 7 to the desired value, which is predetermined by the ratio regulator 6.

Durch die Regelung der Rücklaufmenge des flüssigen Brennstoffes kann ein Regelungsverhältnis für den Brennstoff von l : l bis 5 : l pro Brenner gefahren werden, z. B. minimaler Öldurchsatz pro Brenner 5 kg/h und maximaler Öldurchsatz 25 kg/h. Die minimale und maximale Menge Öldurchsatz kann durch die Auswahl der Durchmesser der Brennerdüsen festgelegt werden.By regulating the return flow of the liquid fuel, a control ratio for the fuel of 1: 1 to 5: 1 per burner can be achieved, e.g. B. Minimum oil throughput per burner 5 kg / h and maximum oil throughput 25 kg / h. The minimum and maximum amount of oil throughput can be determined by selecting the diameter of the burner nozzles.

Diese Verhältnisse können an sich auf mehrere parallel geschaltete Brenner übertragen werden, wenn sichergestellt ist, daß die Verbrennungsluftmenge entsprechend für jeden Brenner in dem geforderten Verhältnis zur Verfügung gestellt werden kann und wenn durch entsprechende Armaturen und Installationen zusätzliche Brenner an- oder auch abgeschaltet werden können.These conditions can be transferred to several burners connected in parallel if it is ensured that the combustion air quantity can be made available for each burner in the required ratio and if additional burners can be switched on or off by appropriate fittings and installations.

Die vorgeschlagene Regelung für eine Brenneranordnung der eingangs angegebenen Art gestattet es, das Regelungsverhältnis für den Brennstoff von l : l bis 5 : l erheblich zu erweitern, z. B. bei Installation von l0 Brennern auf l : l bis 50 : l.The proposed regulation for a burner arrangement of the type mentioned at the beginning allows the regulation ratio for the fuel to be increased considerably from 1: 1 to 5: 1 expand, e.g. B. when installing 10 burners on l: l to 50: l.

Hierbei wird in an sich bekannter Weise jeder Brenner l2, l2ʹ usw. mit der Steuerung 8 einzeln angesteuert und über Brennerventil l3, l3ʹ usw. und Brennerluftklappe l4, l4ʹ usw. mit der festgelegten Menge Brennstoff bzw. Verbrennungsluft versorgt.In this case, each burner l2, l2ʹ etc. is individually controlled with the controller 8 and supplied via burner valve l3, l3ʹ etc. and burner air flap l4, l4ʹ etc. with the specified amount of fuel or combustion air.

Als Führungsgröße für das Hinzu- oder Abschalten der Einzelbrenner über Steuerung 8 dient die Ventilstellung der Regelarmatur 3 in der gemeinsamen Rücklaufleitung ll für den flüssigen Brennstoff. So kann beispielsweise vorgesehen werden, daß bei 80 %-Zu-Stellung des Regelventils 3 im Rücklauf des flüssigen Brennstoffes ein Brenner hinzugeschaltet wird.The valve position of the control valve 3 in the common return line 11 for the liquid fuel serves as a reference variable for switching the individual burners on or off via the control 8. For example, it can be provided that when the control valve 3 is in the 80% closed position, a burner is added in the return of the liquid fuel.

Die Verhältnisse seien anhand eines Zahlenbeispiels wie folgt weiter erläutert.The relationships are further explained using a numerical example as follows.

Sind drei Brenner mit dem Höchstdurchsatz von je 25 kg flüssigem Brennstoff, z. B. Heizöl, pro Stunde in Betrieb so werden stündlich 75 kg/h Brennstoff durchgesetzt. Bei einem Abfall der in der Verbrennungskammer gemessenen Temperatur als Führungsgröße sei die Regelungsanordnung so eingestellt, da das Regelventil 3 im Rücklauf ll des flüssigen Brennstoffes in die Stellung 80 % geschlossen geht. Durch ein entsprechendes Signal wird über Steuerung 8 ein weiterer vierter Brenner in Betrieb genommen, wobei die notwendigen Schritte in der folgenden Reihenfolge ablaufen:
- Luftklappe l4‴ öffnet
- Zündung setzt ein
- Ölventil l3‴ öffnet
- Brenner l2‴ zündet.Are three burners with the maximum throughput of 25 kg of liquid fuel, e.g. B. heating oil, per hour in operation so 75 kg / h fuel are enforced per hour. If the temperature measured in the combustion chamber drops as a reference variable, the control arrangement is set in such a way that the control valve 3 in the return line 11 of the liquid fuel goes into the 80% closed position. By means of a corresponding signal, a further fourth burner is activated via control 8 put into operation, with the necessary steps taking place in the following order:
- Air flap l4 ‴ opens
- Ignition starts
- Oil valve l3 ‴ opens
- Burner l2 ‴ ignites.

Der Durchsatz an flüssigem Brennstoff erhöht sich damit auf 4 × 25 kg/h = l00 kg/h, was einen Anstieg der Brennkammertemperatur zur Folge hat und den Regler 2 veranlaßt, die Regelarmatur 3 in die für die Einhaltung des Temperatur-Sollwertes erforderliche Stellung zu fahren. Es sei angenommen, daß dieser Stellung ein Brennstoffbedarf von 85 kg/h entspricht. Über die Verhältnisregelung 6 zwischen der Druckmessung 4 im Brennstoffrücklauf ll und der Druckmessung 5 im Luftkasten l5 wird der Luftdruck im Luftkasten l5 auf den im Verhältnisregler 6 vorgegebenen Sollwert nachgeregelt. Dazu wird entsprechend die Regelarmatur bzw. Klappe 7 verstellt.The throughput of liquid fuel thus increases to 4 × 25 kg / h = 100 kg / h, which results in an increase in the combustion chamber temperature and causes the controller 2 to move the control valve 3 into the position required to maintain the temperature setpoint drive. It is assumed that this position corresponds to a fuel requirement of 85 kg / h. Via the ratio control 6 between the pressure measurement 4 in the fuel return 11 and the pressure measurement 5 in the air box l5, the air pressure in the air box l5 is readjusted to the desired value specified in the ratio controller 6. For this purpose, the control valve or flap 7 is adjusted accordingly.

Claims (1)

Regelung für eine Brenneranordnung mit parallel geschalteten Einzelbrennern zur Verbrennung flüssiger Brennstoffe mit Luft und einem Brennstoffrücklauf, die durch folgende Merkmale gekennzeichnet ist: a) Führungsgröße für die Brennerregelung ist die über eine Sollwert-Verstellung innerhalb bestimmter Grenzen frei wählbare und durch eine Temperaturmeßstelle (l) erfaßte Brennkammertemperatur, b) die Brennkammertemperatur wirkt mittels eines Temperaturreglers (2) auf eine Regelarmatur (3) im Brennstoffrücklauf, c) die durch Änderung der Stellung der Regelarmatur (3) bewirkte Druckänderung im Brennstoffrücklauf wird mittels einer Druckmeßstelle (4) erfaßt und als Führungsgröße über einen als Verhältnisregelung wirkenden Regler (6) für die Zudosierung von Verbrennungsluft mittels Regelarmatur (7) benutzt, d) mittels einer Druckmeßstelle (5) wird der Druck der Verbrennungsluft in einem zur Versorgung sämtlicher Einzelbrenner dienenden Luftkasten o. dgl. erfaßt und als Folgegröße in Regler (6) für die Zudosierung der Verbrennungsluft benutzt und e) die Stellung der Regelarmatur (3) im Brennstoffrücklauf bewirkt über eine Steuerung (8) bei Zu-Stellung das Hinzuschalten eines Brenners bzw. bei Auf-Stellung das Abschalten eines Brenners, indem die dem jeweiligen Brenner zugeordneten Armaturen für die Versorgung mit Brennstoff und Verbrennungsluft entsprechend geschaltet werden. Regulation for a burner arrangement with parallel single burners for the combustion of liquid fuels with air and a fuel return, which is characterized by the following features: a) The reference variable for the burner control is the combustion chamber temperature, which can be freely selected within a certain range by means of a setpoint adjustment and is recorded by a temperature measuring point (l), b) the combustion chamber temperature acts by means of a temperature controller (2) on a control valve (3) in the fuel return, c) the pressure change in the fuel return caused by changing the position of the control valve (3) is recorded by means of a pressure measuring point (4) and used as a reference variable via a regulator (6) acting as a ratio control for metering combustion air by means of a control valve (7), d) by means of a pressure measuring point (5), the pressure of the combustion air is detected in an air box serving to supply all individual burners or the like and is used as a subsequent variable in controller (6) for metering the combustion air and e) the position of the control valve (3) in the fuel return causes a control (8) in the closed position to switch on a burner or in the open position to switch off a burner by the associated burner fittings for the supply of fuel and Combustion air can be switched accordingly.
EP86115681A 1985-11-15 1986-11-12 Control method for a burner arrangement Expired - Lifetime EP0223193B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86115681T ATE50356T1 (en) 1985-11-15 1986-11-12 CONTROL METHOD FOR A BURNER ASSEMBLY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853540477 DE3540477A1 (en) 1985-11-15 1985-11-15 REGULATION FOR A BURNER ARRANGEMENT
DE3540477 1985-11-15

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EP0223193A1 true EP0223193A1 (en) 1987-05-27
EP0223193B1 EP0223193B1 (en) 1990-02-07

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DE102008035319A1 (en) * 2008-07-25 2010-01-28 Arcotec Gmbh Flame treatment equipment for treating surfaces, comprises burners, which generates flame using air-/gas-mixtures, where each burner is switched on and off independent of the condition of other burner

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FR1209504A (en) * 1957-10-25 1960-03-02 Sulzer Ag Method and device for adjusting a two-fuel fireplace
DE1177272B (en) * 1955-08-08 1964-09-03 Siemens Ag Air and fuel control device for oil-heated ovens
DE2942648A1 (en) * 1979-05-02 1980-11-13 Orion Machinery Co Ltd COMBUSTION CONTROL DEVICE FOR A BURNER WITH SPRAY NOZZLE

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NL6404983A (en) * 1964-05-05 1965-11-08
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DE1177272B (en) * 1955-08-08 1964-09-03 Siemens Ag Air and fuel control device for oil-heated ovens
FR1209504A (en) * 1957-10-25 1960-03-02 Sulzer Ag Method and device for adjusting a two-fuel fireplace
DE2942648A1 (en) * 1979-05-02 1980-11-13 Orion Machinery Co Ltd COMBUSTION CONTROL DEVICE FOR A BURNER WITH SPRAY NOZZLE

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PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 236 (M-173)[1114], 25. November 1982; & JP-A-57 136 021 (MATSUSHITA DENKI SANGYO K.K.) 21-08-1982 *
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PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 79 (M-204)[1224], 31. März 1983; & JP-A-58 006 325 (MATSUSHITA DENKI SANGYO K.K.) 13-01-1983 *

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EP0223193B1 (en) 1990-02-07
DE3540477A1 (en) 1987-05-27
DE3668982D1 (en) 1990-03-15
ATE50356T1 (en) 1990-02-15

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