EP0614047A1 - Dispositif électronique de commande et de réglage pour des brûleurs à gaz d'installations de chauffage - Google Patents

Dispositif électronique de commande et de réglage pour des brûleurs à gaz d'installations de chauffage Download PDF

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Publication number
EP0614047A1
EP0614047A1 EP93114750A EP93114750A EP0614047A1 EP 0614047 A1 EP0614047 A1 EP 0614047A1 EP 93114750 A EP93114750 A EP 93114750A EP 93114750 A EP93114750 A EP 93114750A EP 0614047 A1 EP0614047 A1 EP 0614047A1
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EP
European Patent Office
Prior art keywords
microcomputer
burner
temperature
control device
control
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
Application number
EP93114750A
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German (de)
English (en)
Other versions
EP0614047B1 (fr
Inventor
Anton Dipl.-Ing. Pallek (Fh)
Eckhard Dipl.-Ing. Schwendemann (Fh)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrowatt Technology Innovation AG
Original Assignee
Landis and Gyr Technology Innovation AG
Landis and Gyr Bussiness Support AG
Priority date (The priority date 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 date listed.)
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Publication date
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Publication of EP0614047A1 publication Critical patent/EP0614047A1/fr
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Publication of EP0614047B1 publication Critical patent/EP0614047B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
    • F23N1/10—Regulating fuel supply conjointly with another medium, e.g. boiler water and with air supply or draught
    • F23N1/102—Regulating fuel supply conjointly with another medium, e.g. boiler water and with air supply or draught using electronic means
    • 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
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/08—Microprocessor; Microcomputer
    • 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
    • F23N2225/12—Measuring temperature room temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/13—Measuring temperature outdoor temperature
    • 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
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/20—Measuring temperature entrant temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/04—Prepurge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed

Definitions

  • the invention relates to an electronic control device for gas burners of heating systems of the type mentioned in the preamble of claim 1.
  • Control devices of this type are known as so-called burner controls (Sarkowski, Oil Fire Control Technology, 1964).
  • the supply of air to the burner is controlled before the actual controller operation, in which the heating output is regulated as a function of the heat requirement, since the heating chamber must first be flushed with air.
  • certain test tasks also have to be performed.
  • the blower for the air is driven by a motor with a constant speed and the amount of air conveyed per unit of time is controlled by a throttle valve, for which purpose a microcomputer can be used.
  • An additional controller is used for the actual heating operation, which in turn can have a microcomputer.
  • the invention has for its object to simplify such a control device.
  • the burner control, the regulator and the temperature monitor are combined to form a uniform electronic control and regulating device, in which the microcomputer fulfilling the functions of the burner control takes over additional tasks of the controller and monitor.
  • the microcomputer or the device equipped with the microcomputer is provided with a signal generator which, in particular, generates pulse-width-modulated, that is to say digital control signals, which a DC motor of the blower both during the preparation phase, in which the automatic burner control unit has to perform its main task, and during the actual one Controller operation, ie in the heating phase, and thereby control the air supply to the burner.
  • the microcomputer or the device equipped with it with a comparator which stores the actual speed values of the direct current motor or blower in a memory, that is to say predetermined by a program Speed limit or setpoint values are compared. Depending on the type and / or size of the difference values, the control signals are triggered or influenced.
  • the microcomputer or the device equipped with it also has the controller which influences the signal generator in such a way that control signals are also emitted to the DC motor of the blower during the operating time of the burner as a function of parameters regulating the burner output, which in turn preferably modulates the pulse width are.
  • the speed of the fan is not regulated directly, which is why a separate control circuit for the drive motor is unnecessary.
  • the speed of the fan is detected by a Hall sensor in particular as a speed sensor in the drive motor of the fan. If the fan speed exceeds a minimum speed and a minimum air pressure is reached as a limit or setpoint on the burner, which can be determined by a pressure sensor, then the pre-purge time can begin, in which the microprocessor ensures that the fan runs at high speed runs in order to flush the boiler room and the chimney well with air within a short time.
  • the invention also makes the use of direct speed control in the form of a separate control circuit unnecessary, as has already been stated.
  • a further simplification of the invention is made possible by the fact that the function of a temperature monitor is also integrated, which makes an external thermostat unnecessary.
  • the existing boiler sensor which determines the boiler water temperature T K , is used as an actual value transmitter for the monitor function. As a result, synergistic effects are achieved.
  • microcomputer for certain tasks of the burner control unit, such as obtaining test results from function tests and outputting ignition signals to the ignition electrodes of the burner, which is less expensive due to the smaller number or the smaller scope of the tasks Modification can be selected can.
  • This additional microcomputer is then connected to the main microcomputer through data exchange lines.
  • the further microcomputer can be provided with an automatic timer or cooperate in order to interrupt or to release the control signals for a specific period of time.
  • the control device which is equipped with electronic components and is distributed, for example, on two printed circuit boards, is provided with a microcomputer MC, which both fulfills the functions of the burner control unit for burner B and also controls the temperature of the heating boiler HK as a function of the heat requirement.
  • a further smaller microcomputer MC1 can have a data exchange relationship with the microcomputer MC, which has an automatic time switch which enables the delivery of control signals, for example an ignition signal Z, for a specific period of time.
  • the flame sensor F F emits output signals both to the microcomputer MC and to the other microcomputer MC1 used for monitoring purposes.
  • a setting device allows the programming of the microcomputer MC by entering data into the memory SP (EEPROM).
  • the microcomputer MC initiates, in particular, pulse-width-modulated control signals S ST in the signal generator SG, while the comparator V e compares the actual speed value n with the programmed speed target values n TARGET in order to initiate corresponding functions in the event of deviations or undershoots, Carry out lockouts or prevent certain processes from starting.
  • a single interface SS between the microcomputer MC of the integrated unit and the blower motor M G.
  • the integration of the electronics of the burner control unit with the electronics of the temperature controller reduces the number of components required and also simplifies programming and control.
  • a single signal generator SG is sufficient to generate and output the pulse-width-modulated control signals S ST , which are used both for controlling the start-up program, ie the preparation phase (in the function of a burner control) as well as for regulation during burner operation (in the function as a temperature controller), ie in the heating phase.
  • the control signals S ST are supplied in both phases to the DC motor M of the fan G, which is located in the connecting line VL to the burner B and builds up the pressure P A of the air A supplied to the burner B.
  • The, sensed by the speed sensor F, in particular a Hall sensor on the DC motor M actual rotational speed values N are evaluated both in its function as a burner control as well as in the function as a controller.
  • the burner B (FIG. 2) is switched off due to the temperature monitor function as soon as the boiler water temperature T K reaches a maximum limit value TK max , as is shown schematically in FIG. 5 by the switch-off point of the monitor curve d.
  • the temperature monitor releases operation again as soon as the release point of the monitor curve c is reached.
  • the target temperature (setting value) for the boiler water temperature TK SOLL which can be set on the setpoint potentiometer, is plotted on the abscissa, while the switching point according to the actual value of the boiler water temperature TK IST is plotted on the ordinate.
  • the heating circuit pump When the temperature monitor responds in accordance with the monitor curve d, the heating circuit pump is switched on (burner B had already been switched off when the temperature rose before the control curve b was exceeded). The heating circuit pump now remains in operation until the guard curve c is undershot. After falling below the guard curve c, the controller R can take over the burner control again. The burner start is triggered immediately after the switch-on curve a. Commissioning by a two-point controller R takes place according to curve a and the decommissioning by two-point controller R according to curve b. When commissioned by the two-point controller R according to the controller curve a, the burner B starts with, for example full performance, because the control deviation between the setpoint and actual value reaches its maximum size at that moment.
  • the burner output can advantageously be reduced to 33 to 10% of the nominal output according to a selected degree of modulation 1: 3 to 1:10. It is thereby advantageously achieved that the burner B burns only at a low power at the moment of switching off given by the control curve b, so that an overshoot of the temperature turns out to be very small even if the heat requirement suddenly decreases. This reliably prevents the response of a safety temperature limiter present in such systems.
  • controller R When controller R is switched off, the flow water pump continues to run for the set time. If the temperature monitor switches off, the pump continues to run until the release temperature (c) is reached.
  • the watchdog function is also active when burner B is switched off and also activates the pump due to "residual heat".
  • combustible fluid F flows via a feed line ZL to the burner B of a heating boiler HK.
  • the pressure of the fluid F is regulated by a valve V, in particular a pneumatic pressure regulator as a function of the air pressure P A on the burner, maW: the gas pressure P F is tracked to the air pressure P A , which is determined by the fan speed, ie the speed n of the DC motor M G is controlled, which in this example can be driven with 39 volts DC and can be set at speeds of up to 22 VA at speeds between approximately 200 and 6000 rpm.
  • the valve V could also be formed by a ratio regulator.
  • air A is conducted to burner B via the connecting line VL.
  • the air pressure P A in the connecting line VL is determined by the air pressure sensor F A. This does not necessarily output analog (corresponding to the actual air pressure P A ) output signals to the comparator V e , but an air pressure present signal LP is sufficient when a specific air pressure setpoint or limit value P AG is reached in the connecting line VL . If this limit value P has not yet been reached, then no air pressure present signal LP occurs.
  • the air pressure P A can be adjusted by the speed of the fan G, which is driven, for example, by a 39 V DC motor M. The speed of which can be sensed as the actual speed value n ACT using a speed sensor F n , in particular the Hall sensor.
  • the temperature control and the preparation phase are controlled by the controller R.
  • this controls, for example, the air supply as a function of actual temperature values, for example the room temperature T R , the boiler temperature T K , the outside temperature T A and / or the flow temperature T V , which are fed to controller R via an analog / digital converter A / D and are set in relation to set target values T RSOLL .
  • the controller R generates an output signal which corresponds to the speed setpoint n TARGET and is compared in the comparator V with the actual speed value n ACTUAL .
  • control unit St G is influenced, which in turn generates corresponding control signals S ST .
  • control signals S ST are, in particular, pulse width modulated digital signals and control the speeds of the direct current motor M G.
  • the pressure P F for the combustible fluid F is regulated here depending on the air pressure P A by controlling the regulator drive V.
  • the speed n IST of the fan G should exceed a minimum value of, for example, 2400 rpm during the pre-purge time tv.
  • the speed of the fan G is reduced in accordance with lower pulse-width-modulated control signals S ST .
  • An ignition signal Z is then applied to an ignition unit of the burner B during the ignition time tz, for example to ignition electrodes thereof, while the fan G continues to run at a speed of, for example, 40% of the maximum speed, but does not exceed the maximum value of 2900 rpm in this example.
  • the valve in the supply line ZL opens, that is to say the setting unit V for the combustible fluid F, as a result of which the safety time ts begins, within which a flame signal must be determined by a flame sensor F F , otherwise the lockout occurs.
  • This safety time ts is, for example, up to 10 s
  • the pre-rinsing time tv can be, for example, up to 50 s and the maximum braking time tbre is also of this order of magnitude.
  • the transition to the operating position takes place and the burner operating time tb begins, during which the fan speed n ACT is dependent on the pulse-width-modulated control signals S ST and this in turn is dependent on the output signals specified by controller R in one
  • the speed range can be regulated, which is between approximately 600 and 6000 rpm, as the maximum value specification and plausibility limit, while the maximum speed is typically 4000 rpm.
  • the burner operation is set by the controller R at the time C by switching off the supply of combustible fluid F to the burner B by the setting element V.
  • the fan G can remain in operation in order to blow off combustion residues.
  • the fan speed n ACT is ramped up to full load (programmable), whereupon the home run follows as a regular transition to the standby phase.
  • the microcomputer MC is connected to the flame sensor via the resistor R. F F connected. If the signal emitted (or not emitted) by the flame sensor F F to the microcomputer MC does not match the value stored in the microcomputer MC, which expresses a malfunction, the microcomputer MC outputs an output signal to the control units SA and SA1, which in turn switch S and S1 in that process circuit P and, in the absence of a flame sensor signal that is necessary per se, the process in question, such as the introduction of gas into burner B, is interrupted.
  • the signal from the flame sensor F F is also passed in parallel to the branch leading via the resistor R to the microcomputer MC, namely via the further resistor R1 to the further microcomputer MC 1, which can, but does not have to, have a data exchange connection with the first microcomputer MC. If this additional microcomputer MC1 also detects a malfunction due to the absence (or occurrence) of output signals from the flame sensor F F , then it outputs an output signal to the control units SA and SA1, which in turn control further switches S and S1, which are connected in series Process circuit P, here a relay for the gas valve V, are. Normally, switch S1 also responds when switch S responds. If, however, an error occurs in one of the two shutdown circuits, the process circuit P is nevertheless shut down, specifically via the second shutdown circuit by means of the further switch S1. This parallel connection of two monitoring circuits therefore ensures increased security.
  • this security is increased if the further microcomputer MC1 is constructed differently, for example is equipped with other electronic components, and in particular if it is also programmed differently than the first microcomputer MC.
  • the further microcomputer MC1 is constructed differently, for example is equipped with other electronic components, and in particular if it is also programmed differently than the first microcomputer MC.
  • would namely certain influences both the first monitoring circuit with the microcomputer MC and the other connected in parallel Set the monitoring circuit with the additional microcomputer MC1 from the normal function if both are constructed and programmed the same, so the risk is further reduced if the additional microcomputer MC1 is constructed and / or programmed differently.
  • microcomputer MC1 In order to achieve such a different structure, it is recommended to use a much simpler and therefore also cheaper one for the additional microcomputer MC1 than the first microcomputer MC, which anyway has far more extensive tasks both for the function as a burner control unit and for the function as a temperature controller and Guardian has to take over, while the other microcomputer MC1 mainly serves for process monitoring and the mutual function control with the microcomputer MC.
  • This further microcomputer MC1 can also be used for the mutual checking of the two microcomputers via the data exchange connections shown in broken lines, for example to mutually check a ROM test comparison value and a key comparison value.
  • An advantage of this integration of the electronic control device is that it is unnecessary to use a separate control device with the associated components on the one hand for the burner control and on the other hand for the temperature controller.
  • a single signal generator SG is sufficient to generate and deliver the pulse-width-modulated control signals S ST , which perform their task both for controlling the start-up program (in the function as an automatic burner control unit) and for regulating the temperature during burner operation (in the function as a controller).
  • the actual speed values sensed by the Hall speed sensor F n n ACTUALS are evaluated not only during the start-up program (function as automatic burner control), but also during the controlled burner operation for control and regulation.
  • the air pressure switch or sensor F A ensures that when the burner controls are operated, ie in the "start-up phase", sufficient air pressure is always built up for purging the burner chamber and chimney. If there is a great demand for heat during normal operation, e.g. by switching on additional radiators and tap water, which requires a high speed of the fan G and - depending on it - the gas pressure P A , then it is advisable to check the air pressure sensor F A if a certain one is exceeded Speed setpoint n SET .
  • Speed setpoint n SET During the operation of the temperature controller R, uz in modulating operation, the speed of the fan G can decrease so much with a low heat requirement that the air pressure sensor F A no longer responds. In this case, the use of an additional air pressure sensor could be recommended, which responds to lower air pressure corresponding to a lower fan speed.
  • One or the other air pressure sensor can then be used depending on the speed range.
  • the air pressure sensor F A also responds to the safety test, according to which there is a brief switch-off and restart at least once every 24 hours using the automatic burner control.
  • the temperature sensor for the boiler temperature T K which is integrated in the temperature monitor function, is connected to the analog / digital converter A / D via a circuit F consisting of a filter and a series resistor and via an input circuit E. which is at the entrance of the microcomputer MC or in this itself.
  • the connection point between the circuit F consisting of filter and series resistor and the input circuit E of the analog / digital converter A / D is connected to ground on the one hand via a switch S4 and to voltage U with, for example, 5 V via another switch S3.
  • the microcomputer MC now carries out a rough test of the A / D conversion in that it closes the switch S3 one after the other, for example first, in order to close the voltage U of 5V and then, when the switch S3 is open again, the switch S4 to connect ground via the input circuit E to the analog / digital converter A / D.
  • the A / D conversion with regard to the correct choice of the A / D channel and with regard to the correct result must result in the A / D conversion result matching the known expected value (FF or 0).
  • an A / D voltage will be outside the voltage range of between 1 and 4V in this example.
  • the switches S3, S4 are expediently designed as transistors.
  • the invention surprisingly also simplifies the function. This eliminates the need for interlocking separate assemblies, since the microcomputer does not follow any commands from the controller as long as the burner control unit executes its program after a starting process (start-up phase).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)
EP93114750A 1993-03-05 1993-09-14 Dispositif électronique de commande et de réglage pour des brûleurs à gaz d'installations de chauffage Expired - Lifetime EP0614047B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH66293 1993-03-05
CH662/93 1993-03-05

Publications (2)

Publication Number Publication Date
EP0614047A1 true EP0614047A1 (fr) 1994-09-07
EP0614047B1 EP0614047B1 (fr) 1999-01-13

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EP (1) EP0614047B1 (fr)
DE (2) DE9310458U1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0743578A1 (fr) * 1995-05-19 1996-11-20 Meissner & Wurst GmbH & Co. Lufttechnische Anlagen Gebäude- und Verfahrenstechnik Aménagement de salle blanche
WO1997012307A1 (fr) * 1995-09-27 1997-04-03 Daewoo Electronics Co., Ltd. Dispositif et procede de detection d'un flux contraire dans une chaudiere a gaz
EP0825385A3 (fr) * 1996-08-19 1999-08-04 G. Kromschröder Aktiengesellschaft Dispositif de commande pour un brûleur
WO2000039505A1 (fr) * 1998-12-28 2000-07-06 Robert Bosch Gmbh Dispositif de commande d'un bruleur
WO2002053972A1 (fr) * 2000-12-15 2002-07-11 Honeywell International Inc. Procede et systeme de reglage de chaudiere
EP1462724A1 (fr) * 2003-03-24 2004-09-29 Siemens Building Technologies AG Dispositif pour contrôle ou limitation de la température d'un générateur de chaleur
DE102004013971A1 (de) * 2004-03-19 2005-10-06 Rational Ag Brennereinrichtung für ein Gargerät und Gargerät mit solch einer Brennereinrichtung
US7819334B2 (en) 2004-03-25 2010-10-26 Honeywell International Inc. Multi-stage boiler staging and modulation control methods and controllers
DE10159033B4 (de) * 2000-12-01 2012-08-16 Vaillant Gmbh Regelungsverfahren für Heizungsgeräte
US8251297B2 (en) 2004-04-16 2012-08-28 Honeywell International Inc. Multi-stage boiler system control methods and devices
US11175040B2 (en) 2016-02-19 2021-11-16 Haldor Topsøe A/S Over firing protection of combustion unit

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Publication number Priority date Publication date Assignee Title
DE10148642B4 (de) * 2001-10-02 2006-04-27 Robert Seuffer Gmbh & Co. Kg Kochherd mit einer Bedieneinheit zum Bedienen wenigstens einer von einem Gasbrenner beheizten Kochstelle

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EP0073717A1 (fr) * 1981-08-27 1983-03-09 Saunier Duval Eau Chaude Chauffage - Sdecc Chaudière à gaz étanche à tirage forcé avec régulation par microprocesseur
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JPS63318417A (ja) * 1987-06-19 1988-12-27 Matsushita Electric Ind Co Ltd 強制給排気式暖房機の制御装置
JPS6484020A (en) * 1987-09-26 1989-03-29 Noritz Corp Combustion control device
JPH01252819A (ja) * 1988-03-30 1989-10-09 Harman Co Ltd 燃焼装置
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EP0315053B1 (fr) * 1987-11-06 1994-02-09 Joh. Vaillant GmbH u. Co. Automate de brûleur
DE59102338D1 (de) * 1990-10-10 1994-09-01 Honeywell Bv Luftstromüberwachungseinrichtung für Brenneranlagen.

Patent Citations (10)

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Publication number Priority date Publication date Assignee Title
DE2920343A1 (de) 1978-05-24 1979-11-29 Land Pyrometers Ltd Vorrichtung zur steuerung von brennern
EP0073717A1 (fr) * 1981-08-27 1983-03-09 Saunier Duval Eau Chaude Chauffage - Sdecc Chaudière à gaz étanche à tirage forcé avec régulation par microprocesseur
JPS63169421A (ja) * 1986-12-27 1988-07-13 Isuzu Motors Ltd 暖房器の燃焼制御装置
JPS63318417A (ja) * 1987-06-19 1988-12-27 Matsushita Electric Ind Co Ltd 強制給排気式暖房機の制御装置
JPS6484020A (en) * 1987-09-26 1989-03-29 Noritz Corp Combustion control device
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EP0743578A1 (fr) * 1995-05-19 1996-11-20 Meissner & Wurst GmbH & Co. Lufttechnische Anlagen Gebäude- und Verfahrenstechnik Aménagement de salle blanche
WO1997012307A1 (fr) * 1995-09-27 1997-04-03 Daewoo Electronics Co., Ltd. Dispositif et procede de detection d'un flux contraire dans une chaudiere a gaz
EP0825385A3 (fr) * 1996-08-19 1999-08-04 G. Kromschröder Aktiengesellschaft Dispositif de commande pour un brûleur
WO2000039505A1 (fr) * 1998-12-28 2000-07-06 Robert Bosch Gmbh Dispositif de commande d'un bruleur
DE10159033B4 (de) * 2000-12-01 2012-08-16 Vaillant Gmbh Regelungsverfahren für Heizungsgeräte
WO2002053972A1 (fr) * 2000-12-15 2002-07-11 Honeywell International Inc. Procede et systeme de reglage de chaudiere
US6536678B2 (en) 2000-12-15 2003-03-25 Honeywell International Inc. Boiler control system and method
EP1462724A1 (fr) * 2003-03-24 2004-09-29 Siemens Building Technologies AG Dispositif pour contrôle ou limitation de la température d'un générateur de chaleur
WO2004085924A1 (fr) * 2003-03-24 2004-10-07 Siemens Building Technologies Ag Dispositif de regulation/limitation de temperature pour une installation de production de chaleur
DE102004013971A1 (de) * 2004-03-19 2005-10-06 Rational Ag Brennereinrichtung für ein Gargerät und Gargerät mit solch einer Brennereinrichtung
DE102004013971B4 (de) * 2004-03-19 2008-07-17 Rational Ag Brennereinrichtung für ein Gargerät und Gargerät mit solch einer Brennereinrichtung
US7819334B2 (en) 2004-03-25 2010-10-26 Honeywell International Inc. Multi-stage boiler staging and modulation control methods and controllers
US8251297B2 (en) 2004-04-16 2012-08-28 Honeywell International Inc. Multi-stage boiler system control methods and devices
US11175040B2 (en) 2016-02-19 2021-11-16 Haldor Topsøe A/S Over firing protection of combustion unit

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DE59309307D1 (de) 1999-02-25
EP0614047B1 (fr) 1999-01-13

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