EP1260766B1 - Verfahren zur Anpassung eines brennerbeheizten Heizgerätes an ein Luft-Abgassystem - Google Patents

Verfahren zur Anpassung eines brennerbeheizten Heizgerätes an ein Luft-Abgassystem Download PDF

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Publication number
EP1260766B1
EP1260766B1 EP02010791A EP02010791A EP1260766B1 EP 1260766 B1 EP1260766 B1 EP 1260766B1 EP 02010791 A EP02010791 A EP 02010791A EP 02010791 A EP02010791 A EP 02010791A EP 1260766 B1 EP1260766 B1 EP 1260766B1
Authority
EP
European Patent Office
Prior art keywords
speed
air
blower
pressure value
burner
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
Application number
EP02010791A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1260766A3 (de
EP1260766A2 (de
Inventor
Norbert Gaisbauer
Peter Menne
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.)
Vaillant GmbH
Original Assignee
Vaillant GmbH
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.)
Filing date
Publication date
Application filed by Vaillant GmbH filed Critical Vaillant GmbH
Publication of EP1260766A2 publication Critical patent/EP1260766A2/de
Publication of EP1260766A3 publication Critical patent/EP1260766A3/de
Application granted granted Critical
Publication of EP1260766B1 publication Critical patent/EP1260766B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F23N1/00—Regulating fuel supply
    • F23N1/06—Regulating fuel supply conjointly with draught
    • F23N1/062—Regulating fuel supply conjointly with draught using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/184—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N2005/181—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using detectors sensitive to rate of flow of air
    • F23N2005/182—Air flow switch
    • 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
    • F23N2225/19—Measuring temperature outlet temperature water heat-exchanger
    • 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
    • F23N2227/02—Starting or ignition cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/02—Ventilators in stacks
    • F23N2233/04—Ventilators in stacks with variable speed

Definitions

  • the invention relates to a method for adapting a burner-heated heater according to the preamble of claim 1.
  • This method is based on the defined dependence of the air volume flow on the speed of the fan.
  • this defined dependency only applies to a constant air temperature.
  • the burner must have been out of operation for a certain minimum time prior to any automatic tube length adjustment to ensure reproducible air temperatures during tube length adjustment. This requirement is of particular importance for a pressure measuring system on the exhaust side.
  • the aim of the invention is to avoid this disadvantage and to provide a method of the type mentioned, which can also be used in a warm operating state of the heater.
  • a tube length adjustment can be carried out even in the warm state of the heater, as by the operation of the blower with a certain Vor Hughesnaviere before the actual determination of the speed at which the intended for the release of the gas supply pressure value is reached, the residual heat after a shutdown of the burner away from the primary heat exchanger and is discharged past the pressure measuring system.
  • the temperature of the air volume flow at the pressure measuring system equals the measured flow or return temperature of the primary heat exchanger in the device. As a result, it can be concluded from the measured flow or return temperature to the temperature of the air volume flow. With the aid of the calculated temperature correction function, the speed determined in the warm device state can be corrected to a defined value.
  • the tube length adjustment can be made almost immediately after the burner is shut down, with the time during which the blower operates at a certain pre-purging speed being relatively short, e.g. 1 min, can be kept.
  • the heater 23 after the Fig. 1 has a burner 16 which is arranged in a chamber 25 which is connected via a fresh air supply 20 which coaxially surrounds an exhaust gas guide 11, with the environment.
  • This burner 16 acts on a heat exchanger 13, which is connected via a return line 17 and a flow line 15 with a radiator assembly.
  • an exhaust gas collecting hood 12 is arranged, which is connected to the exhaust gas guide 11.
  • the burner 16 can be connected via a gas line 10 and a gas control device 18 to a gas supply 19.
  • the gas control device 18 is provided with a modulation magnet 9, which provides the corresponding drive.
  • this modulation magnet 9 is controlled by a control electronics 7, which is connected via a control line 8 with the modulation magnet 9.
  • a fan 3 is arranged, the speed of which is monitored by a Hall sensor 2.
  • This Hall sensor 2 is connected via a signal line 5 to a speed controller 22.
  • the control electronics 7 is connected via a control line 6 to the speed controller 22, which in turn is connected via power supply lines 21 to the blower 3.
  • a pressure measuring point 14 is arranged, which is connected to a pressure switch 1, which switches when a certain pressure is reached.
  • the pressure in the exhaust gas guide 11 is detected via the pressure measuring point 14, which may be formed by a pitot tube.
  • the pressure switch 1 is connected to the control electronics 7.
  • Fig. 3 represented standard characteristic curve 30 - speed as a function of the burner power Q - is determined from the Lucasiereangins of the device with regard to condensation behavior, pollutant freedom and flame stability under standard conditions in laboratory experiments and stored as table 41 in the control electronics 7 ( Fig. 4 ).
  • This standard characteristic 30 represents the course in which optimum emission values result under standard installation conditions. To determine the burner 16 is put into operation and varied the load over the entire modulation range. At each operating point, the speed is then determined, in which the CO and NO x emissions reach the required values, the over-ignition is still guaranteed and, secondly, no condensate is produced in the exhaust pipe.
  • the operating characteristic curve is calculated from the standard characteristic curve by multiplying by the ratio "speed in pressure switch point" to "speed in pressure switch point under standard conditions". The latter is determined as the standard characteristic under standard conditions and stored in the memory 40 of the control electronics 7.
  • Typical characteristics shows the Fig. 3 , wherein the standard characteristic 30 with the installation according to Fig. 2a correlates, the operating characteristic 31 with Fig. 2b and the operating characteristic 32 with Fig. 2c ,
  • a heater 23 may be provided with differently shaped air-exhaust systems 24, which are formed by a fresh air supply 20 and an enclosed by this exhaust guide 11, and a blower 3.
  • the air-exhaust system 24 angled ( Fig. 2a, 2b ) or straight ( Fig. 2c ).
  • the length of the air exhaust system 24 can vary considerably ( Fig. 2a, 2b ), which results in significant differences in the flow resistance of the air-exhaust system 24.
  • a correction factor is determined, with the operating characteristic curves 30 are determined from the stored in the control electronics 7 standard characteristics.
  • the control of the modulating magnet 9 and thus the gas supply to the burner 16 and the rotational speed of the blower 3 is controlled by the control electronics 7 according to these operating characteristics.
  • the control deviation is defined as the deviation of the actual flow temperature, measured by the temperature sensor 34 to the set target value, that of the controller 7 via the adjuster 43 is given.
  • This adjuster 43 may be an outside temperature sensor, which is connected via a line 44 to a microprocessor uP of the controller 7, or a fixed value.
  • the microprocessor ⁇ P has access to all tables via data lines 45, 46 and 47. Furthermore, the microprocessor ⁇ P is connected to all actual values and the nominal value transmitter via signal lines 33.
  • controller 7 has a flame monitoring and ignition device 28, which is connected via lines 27 and 29 with a sensor, not shown, and an electrode, also not shown.
  • the edge characteristics 31 and 32 set the highest and lowest speed, so that within the field between these limit characteristics safe burner operation is possible. Too high an excess of air would lead to a lifting of the flames and thus to an imperfect combustion and a too small air flow equally to incomplete combustion with carbon monoxide fractions.
  • a correction factor is determined, with the operating characteristic curves are calculated from the stored in the controller 7 standard characteristics.
  • the control of the modulating magnet 9 and thus the gas supply to the burner 16 and the rotational speed of the blower 3 is controlled by the controller 7 according to these operating characteristics.
  • the fan 3 is kept for a certain minimum time, e.g. may be one minute, is operated at its maximum speed or power, whereby the temperature of the air volume flow at the pressure measuring system, the measured in the device measured flow temperature of the primary heat exchanger, so that depending on the measured flow and / or return temperature of the primary Heat exchanger can be closed to the temperature of the air flow.
  • the speed of the fan 3 is lowered to the starting speed and then increased slowly until the intended pressure value is reached.
  • a temperature correction function is calculated from the result of a measurement of the flow and / or return temperature of the primary heat exchanger 13, with the calculated speed from which a corrected speed is calculated, which is used to determine the operating characteristics.

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)
  • Air Supply (AREA)
  • Chimneys And Flues (AREA)
  • Sampling And Sample Adjustment (AREA)
EP02010791A 2001-05-21 2002-05-15 Verfahren zur Anpassung eines brennerbeheizten Heizgerätes an ein Luft-Abgassystem Expired - Lifetime EP1260766B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT8002001 2001-05-21
AT0080001A AT410477B (de) 2001-05-21 2001-05-21 Verfahren zur anpassung eines brennerbeheizten heizgerätes an ein luft-abgassystem

Publications (3)

Publication Number Publication Date
EP1260766A2 EP1260766A2 (de) 2002-11-27
EP1260766A3 EP1260766A3 (de) 2004-12-08
EP1260766B1 true EP1260766B1 (de) 2008-04-23

Family

ID=3681137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010791A Expired - Lifetime EP1260766B1 (de) 2001-05-21 2002-05-15 Verfahren zur Anpassung eines brennerbeheizten Heizgerätes an ein Luft-Abgassystem

Country Status (6)

Country Link
EP (1) EP1260766B1 (da)
AT (2) AT410477B (da)
DE (2) DE10222770A1 (da)
DK (1) DK1260766T3 (da)
ES (1) ES2304408T3 (da)
PT (1) PT1260766E (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021109473A1 (de) * 2021-04-15 2022-11-03 Vaillant Gmbh Verfahren zum Prüfen einer Abgasanlage eines Heizgerätes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510425C2 (de) * 1995-03-24 1999-05-27 Bosch Gmbh Robert Verfahren und Vorrichtung zur Regelung eines Heizgerätes
DE19607854A1 (de) * 1996-03-01 1997-09-04 Bosch Gmbh Robert Heizgerät und Verfahren zur Regelung eines Heizgerätes
AT408033B (de) * 1997-10-08 2001-08-27 Vaillant Gmbh Verfahren zur anpassung eines brennerbeheizten heizgerätes
DE19846207C2 (de) * 1998-08-19 2000-10-26 Wolf Gmbh Vorrichtung und Verfahren zur Einstellung der Drehzahl eines Gebläses einer Gasheizeinrichtung, wie insbesondere einer Gastherme
DE19961285C1 (de) * 1999-12-18 2001-06-28 Bosch Gmbh Robert Verfahren zum Regeln eines Wärmeerzeugers mit einer Luft-Abgas-Führung

Also Published As

Publication number Publication date
DK1260766T3 (da) 2008-08-25
EP1260766A3 (de) 2004-12-08
PT1260766E (pt) 2008-07-07
DE10222770A1 (de) 2002-12-05
DE50212130D1 (de) 2008-06-05
EP1260766A2 (de) 2002-11-27
ATE393361T1 (de) 2008-05-15
ATA8002001A (de) 2002-09-15
ES2304408T3 (es) 2008-10-16
AT410477B (de) 2003-05-26

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