EP1450102A1 - Appareil de chauffage et procédé de fonctionnement correspondant - Google Patents

Appareil de chauffage et procédé de fonctionnement correspondant Download PDF

Info

Publication number
EP1450102A1
EP1450102A1 EP03027442A EP03027442A EP1450102A1 EP 1450102 A1 EP1450102 A1 EP 1450102A1 EP 03027442 A EP03027442 A EP 03027442A EP 03027442 A EP03027442 A EP 03027442A EP 1450102 A1 EP1450102 A1 EP 1450102A1
Authority
EP
European Patent Office
Prior art keywords
operating characteristic
speed
control parameter
control
heater
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.)
Withdrawn
Application number
EP03027442A
Other languages
German (de)
English (en)
Inventor
Marc Rosenland
Bernd Baasner
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1450102A1 publication Critical patent/EP1450102A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F23N5/123—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods 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
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements 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
    • F23N2223/48—Learning / Adaptive control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F23N2229/12—Flame sensors with flame rectification current detecting means
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/04—Heating water

Definitions

  • the present invention relates to a heater, in particular a heating device of a central building heating system and / or a building water heating system.
  • a heater in particular a heating device of a central building heating system and / or a building water heating system.
  • Operational Such a heater can be used in certain Operating conditions lead to undesirable vibrations, which is the flame formation of a burner of the heater can adversely affect.
  • undesirable vibrations which is the flame formation of a burner of the heater can adversely affect.
  • the Flames excited to vibrate in a resonance range be what the goodness of combustion, in particular with regard to emission values and efficiency, deteriorated. In extreme cases, the flame can pass through the Natural vibrations.
  • the vibration behavior of such a heater becomes one depending on the operating state of the heater, e.g. Speed of a fan and / or fuel volume flow, determined, on the other hand, the structure of the heater also have a significant impact on the Vibration behavior.
  • the structure includes in particular the Design of the supply air and exhaust air routing e.g. with regard on pipe length, pipe cross sections, number and type of Flow deflections. It can also be important whether the heater is an external wall unit and / or is a condensing boiler. Since the device structure from depends on the respective application, can be in operation possible vibration conditions occurring at the factory are not taken into account. In addition, too Ambient conditions of the heater, e.g. Fresh air temperature and air pressure, the vibration behavior of the heater.
  • the present invention with the features of independent Claims has the advantage that the heater is impermissible Automatically recognizes vibration states and by a Change in fan speed automatically eliminated.
  • the adverse effects of any occurring Vibrations can thus be independent of each Installation situation, regardless of the periphery of the Heater, regardless of environmental conditions and regardless of the operating status of the heater be effectively reduced or avoided. Factory Presettings are therefore unnecessary.
  • a major advantage of the present invention is also seen in that the change in fan speed achieved with the help of a variation of the operating characteristic is so that in the actual control algorithm for No control or regulation of the fan speed must be intervened.
  • the operating characteristic is adjusted accordingly Fan speed using the control algorithm from itself.
  • the invention can thus be based on an existing one Control algorithm, so here no special effort is required.
  • the variation the operating characteristic by the control the operating characteristic within the map parallel to Speed axis shifts.
  • the zero position the speed axis becomes relative to the operating characteristic adjusted.
  • This shift can basically be stepless or in speed steps, which results in correspondingly a stepless or stepped Increased speed of the fan speed results.
  • the map can have several essentially parallel to the operating characteristic Have characteristic curves.
  • the variation of the operating characteristic can then preferably take place in that the control to a characteristic curve adjacent to the operating characteristic switches. Because neighboring characteristics are different distinguish from each other that they are the same Control parameters different fan speeds assign, there is also a result of this procedure Change in fan speed.
  • the Operating characteristic curve have several speed levels that each assigned to a range of values of the control parameter are, the respective within each speed level Fan speed is constant and being adjacent Speed levels have different fan speeds.
  • the variation of Operational characteristic curve expediently take place in that the Control the the current value of the control parameter assigned speed level with an adjacent one Speed level summarizes, so that the on this Value ranges of the control parameter summarized in this way the fan speed of the adjacent speed level assigned.
  • the quasi current value of the control parameter Fan speed assigned to the current value of the Control parameter adjacent value range of Control parameter is assigned. That is, the The speed level of the neighboring value range is set to Range of values of the current value of the control parameter extends.
  • This procedure essentially corresponds a shift in the operating characteristic within the Map parallel to the control parameter axis. As the The aforementioned embodiments can also do this, in particular through appropriate software, relatively simple will be realized.
  • the heater 1 includes a heater 1 according to the Invention a burner 2 in a combustion chamber 3rd is arranged.
  • An air supply leads to the combustion chamber 3 4, via which the combustion air is fed to the burner 2.
  • the Air supply 4 coaxially with an exhaust gas discharge 5 Exhaust pipe, not shown, is connected to To discharge combustion gases into the atmosphere.
  • the Air supply 4 with air pipe and the exhaust gas discharge 5 with Exhaust pipe form an air / exhaust system. If the Air supply 4, the combustion air from the environment Building sucks, in which the heater 1 is arranged, the heater 1 is an external wall unit.
  • the heater 1 usually forms part of a Building central heating and / or one Building water heating system.
  • the heater 1 can be designed as a condensing boiler, at which the combustion gases are below the dew point of water be cooled. It is preferably the Heater 1, however, a conventional heater 1, at which the exhaust gases do not cool below the dew point of water become.
  • the burner 2 acts on its hot Combustion gases a heat exchanger 6, which has a Flow line 7 and a return line 8 for example with a radiator arrangement, not shown Building central heating is connected. About that Heat exchanger 6, an exhaust gas hood 9 is arranged, the passes to exhaust gas discharge 5.
  • the one shown here Embodiment is in the exhaust gas discharge 5 above the Exhaust collector 9, a blower 10 arranged, the exhaust gas sucked out of the combustion chamber 3 and one through the suction corresponding volume flow or air mass flow Combustion air via air supply 4 to burner 2 supplies.
  • the blower can 10 can also be arranged in the air supply 4.
  • the burner 2 is via a fuel line 11 and a fuel control device 12 with a Fuel supply 13 connected.
  • fuel usually used natural gas or heating oil.
  • the Fuel control device 12 can with a Modulation magnet 14 may be equipped for the suitable adjustment of the fuel control device 12 provides.
  • the heater 1 also has a controller 15 that serves to actuate the modulation magnet 14, what the controller 15 via a control line 16 with the Modulation magnet 14 is connected.
  • the modulation magnet 14 and the fuel control device 12 form one Fuel dosing.
  • the controller 15 contains expediently a so-called fuel burner control, with which the operation and monitoring of the burner 2 with fully automatic ignition.
  • the heater 1 is also with a flame control device 35 equipped by means of a corresponding sensor 36, for example is designed as an ionisensor, the presence and / or the absence, preferably the intensity of a flame of the Brenners 2 sensed and a corresponding Communicates signal line 37 to the controller 15.
  • This Flame control device 35 can with a corresponding Design used as a vibration detection device are referred to below as 38.
  • this vibration detection device 38 can Control 15 determine whether a for heater 1 impermissible vibration condition is present or not.
  • the flame of burner 2 oscillates when such a vibration behavior occurs.
  • the flame can oscillate or flicker with the help of Sensor 36 can be detected, making it the controller 15 is possible, an impermissible vibration behavior of the Determine heater 1.
  • a speed n (see FIG. 2) of the fan 10 can be from one Speed sensor 17, for example a Hall sensor, is detected become.
  • the speed sensor 17 stands over a Signal line 18 with a blower control unit 19 in Connection, which in turn via a control line 20 with the controller 15 and via a power supply line 21 is connected to the blower 10.
  • Air supply 4 also has a differential pressure measuring point 22 a differential pressure switch 23 arranged at Gives a switching signal when a certain pressure is reached and this via a signal line 24 of the controller 15 feeds. It is also possible to use the differential pressure measuring point 22 with the differential pressure switch 23 in the exhaust gas discharge 5 to arrange.
  • a temperature sensor 25 is located in the flow line 7 arranged, the signal via a signal line 26th is also supplied to the controller 15.
  • the burner output can be adjusted via a Modulation current i (see also FIG. 2) for controlling the Modulation magnet 14 depending on a predetermined Setpoint are regulated.
  • This setpoint can Controller 15 e.g. via an outside temperature sensor weather-dependent and / or via a fixed setting according to the required room temperature.
  • a further temperature sensor 27 is located in the exhaust gas discharge 5 arranged, the signal via a signal line 28 of the Control 15 is supplied.
  • the controller 15 has access to one shown in FIG Map 29, the several curves 30,31,32 and 33 for one Fan speed n depending on a control parameter contains.
  • One is expediently used as the control parameter Burner output Q or a correlating one Heat request used.
  • the individual characteristics 30,31,32,33 run essentially parallel to each other and are in the direction of the speed axis from each other spaced, i.e. for the same value of the control parameter Q (Burner output / heat requirement) results for each Characteristic 30,31,32,33 another fan speed n.
  • a characteristic curve which is most suitable for the present installation state or for the present air / exhaust gas system 4, 5 is selected in the course of the installation of the heater 1 and is referred to below as the operating characteristic curve K x ,
  • this operating characteristic curve K x is formed by the characteristic curve 32.
  • a method for determining the operating characteristic K x is described, for example, in DE 102 03 798 from January 31, 2002.
  • the characteristics have 30,31,32,33 speed levels, each of which has a range of values of the control parameter Q is assigned. Within the The respective speed level is the corresponding one Range of values assigned fan speed n constant. As well An embodiment is possible in which the characteristic curves 30 to 33 the fan speed n continuously Assign control parameter Q.
  • the heater 1 according to the invention works as follows:
  • the fan 10 In normal operation, the fan 10 is actuated with respect to its fan speed n as a function of the operating characteristic K x , ie a specific normal fan speed n is assigned to the current value of the control parameter Q using the operating characteristic K x .
  • the blower control unit 19 then tries to set or regulate the blower speed n specified in this way on the blower 10.
  • the control 15 is designed such that it varies the operating characteristic K x as soon as it detects the presence of an impermissible vibration behavior by means of the vibration detection device 38.
  • the aforementioned variation of the operating characteristic curve K x takes place in such a way that an alternative fan speed n 'is assigned to the current value of the control parameter Q.
  • the alternative fan speed n 'determined by the variation of the operating characteristic K x is then supplied by the controller 15 to the fan control unit 19, so that it accordingly sets the alternative fan speed n' on the fan 10.
  • control 15 varies the operating characteristic K x such that the alternative fan speed n 'is greater than the normal fan speed n provided for this control parameter. Accordingly, the air volume flow increases, so that there is always a lean combustion with low pollutants. In principle, however, a lowering of the fan speed is also conceivable.
  • the controller 15 can vary the operating characteristic K x, for example, by shifting the operating characteristic K x within the characteristic diagram 29 parallel to the speed axis, that is to say upwards (or downwards) according to FIG. 2.
  • the assigned fan speed n increases (or decreases) for the respective control parameter Q.
  • an impermissible vibration behavior occurs.
  • This operating state is characterized, among other things, by the control parameter Q, which has a value of 15, for example.
  • N the normal fan speed is obtained from the operating characteristic curve K x and amounts to about 1,900 rpm -1.
  • the shift in the operating characteristic K x can then be changed continuously or in predetermined steps until the critical oscillation state is eliminated.
  • a certain speed jump can be specified, in which experience has shown that the impermissible vibration state passes.
  • the controller 15 can also be designed such that it varies the operating characteristic curve K x by switching over to an adjacent characteristic curve 31 or 33 ,
  • the current control parameter Q again has a value of 15; n the corresponding normal fan speed is then about 1,900 rpm -1.
  • the change of the operating characteristic curve K x to the adjacent upward curve 33 then leads to an alternate blower speed n 'of about 2,100 rpm -1.
  • This procedure corresponds to a shift of the operating characteristic K x parallel to the axis of the control parameter Q according to FIG. 2 to the left.
  • the controller 15 is expediently designed such that, after the variation of the operating characteristic K x has been carried out, it further checks whether there is an impermissible oscillation state, adaptation times being taken into account. If the impermissible vibration condition is still present or if a new, impermissible vibration condition has occurred, the controller 15 changes the operating characteristic K x again . However, as soon as the controller 15 can determine that the impermissible oscillation state is no longer present, it can, particularly after a predetermined period of time, undo the previous variation or the previous variations until the blower 10 returns to normal according to its operating characteristic K x is operated.
  • the controller 15 can also be designed in such a way that it gradually adapts the operating characteristic K x to impermissible vibration states, in particular to those that occur repeatedly. This means that the controller 15 remembers a control parameter Q in which the operating characteristic curve K x was varied once or several times. As soon as this noted control parameter Q occurs again later, the controller 15 can carry out the variation of the operating characteristic K x that was carried out earlier, even before the vibration detection device 38 detects the presence of an impermissible vibration state. The heater 1 then shows a particularly stable operating behavior.

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)
EP03027442A 2003-02-20 2003-12-01 Appareil de chauffage et procédé de fonctionnement correspondant Withdrawn EP1450102A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10307131 2003-02-20
DE10307131A DE10307131A1 (de) 2003-02-20 2003-02-20 Heizgerät und zugehöriges Betriebsverfahren

Publications (1)

Publication Number Publication Date
EP1450102A1 true EP1450102A1 (fr) 2004-08-25

Family

ID=32731061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03027442A Withdrawn EP1450102A1 (fr) 2003-02-20 2003-12-01 Appareil de chauffage et procédé de fonctionnement correspondant

Country Status (2)

Country Link
EP (1) EP1450102A1 (fr)
DE (1) DE10307131A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007087907A1 (fr) * 2006-01-11 2007-08-09 Alstom Technology Ltd Procédé de fonctionnement d'un foyer
EP3182007A1 (fr) * 2015-12-18 2017-06-21 Robert Bosch Gmbh Système d'appareil de chauffage et procédé faisant appel à un système d'appareil de chauffage
WO2018215527A1 (fr) * 2017-05-24 2018-11-29 Bosch Termotecnologia S.A. Système d'appareil de chauffage et procédé permettant de faire fonctionner un système d'appareil de chauffage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937290A1 (de) * 1988-11-10 1990-05-17 Vaillant Joh Gmbh & Co Verfahren und einrichtung zur herstellung eines einer verbrennung zuzufuehrenden brennstoff-verbrennungsluft-gemisches
EP0682210A1 (fr) * 1994-03-18 1995-11-15 Yamatake-Honeywell Co. Ltd. Dispositif de commande de combustion
DE19502901C1 (de) * 1995-01-31 1996-03-21 Stiebel Eltron Gmbh & Co Kg Regeleinrichtung für einen Gasbrenner
EP0733859A2 (fr) * 1995-03-24 1996-09-25 Robert Bosch Gmbh Procédé et dispositif de commande d'un appareil de chauffage
DE19847448A1 (de) * 1997-10-08 1999-04-22 Vaillant Joh Gmbh & Co Verfahren zur Anpassung eines brennerbeheizten Heizgerätes
DE10121985A1 (de) * 2001-05-05 2002-11-07 Buderus Heiztechnik Gmbh Verfahren zum Betrieb eines Gasbrenners
EP1333227A2 (fr) * 2002-01-31 2003-08-06 Robert Bosch Gmbh Procédé d'ajustement d'un appareil de chauffage incorporant un brûleur à son système d'échappement et/ou de tirage en air

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937290A1 (de) * 1988-11-10 1990-05-17 Vaillant Joh Gmbh & Co Verfahren und einrichtung zur herstellung eines einer verbrennung zuzufuehrenden brennstoff-verbrennungsluft-gemisches
EP0682210A1 (fr) * 1994-03-18 1995-11-15 Yamatake-Honeywell Co. Ltd. Dispositif de commande de combustion
DE19502901C1 (de) * 1995-01-31 1996-03-21 Stiebel Eltron Gmbh & Co Kg Regeleinrichtung für einen Gasbrenner
EP0733859A2 (fr) * 1995-03-24 1996-09-25 Robert Bosch Gmbh Procédé et dispositif de commande d'un appareil de chauffage
DE19847448A1 (de) * 1997-10-08 1999-04-22 Vaillant Joh Gmbh & Co Verfahren zur Anpassung eines brennerbeheizten Heizgerätes
DE10121985A1 (de) * 2001-05-05 2002-11-07 Buderus Heiztechnik Gmbh Verfahren zum Betrieb eines Gasbrenners
EP1333227A2 (fr) * 2002-01-31 2003-08-06 Robert Bosch Gmbh Procédé d'ajustement d'un appareil de chauffage incorporant un brûleur à son système d'échappement et/ou de tirage en air

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007087907A1 (fr) * 2006-01-11 2007-08-09 Alstom Technology Ltd Procédé de fonctionnement d'un foyer
US8783042B2 (en) 2006-01-11 2014-07-22 Alstom Technology Ltd Method for operating a firing plant
EP3182007A1 (fr) * 2015-12-18 2017-06-21 Robert Bosch Gmbh Système d'appareil de chauffage et procédé faisant appel à un système d'appareil de chauffage
WO2018215527A1 (fr) * 2017-05-24 2018-11-29 Bosch Termotecnologia S.A. Système d'appareil de chauffage et procédé permettant de faire fonctionner un système d'appareil de chauffage

Also Published As

Publication number Publication date
DE10307131A1 (de) 2004-09-02

Similar Documents

Publication Publication Date Title
EP1364163B1 (fr) Procede de regulation d'un processus thermodynamique, en particulier d'un processus de combustion
EP1761728B1 (fr) Procede de reglage du coefficient d'air dans un appareil de combustion et appareil de combustion
WO2009080282A2 (fr) Optimisation du fonctionnement d'une centrale électrique
DE19629068A1 (de) Vorrichtung zum Steuern der Motorleerlaufdrehzahl
DE69910126T2 (de) Verbrennunungsverfahren eines Brennstoffes mit einem sauerstoffreichen Oxidationsmittel
EP3825623B1 (fr) Appareil chauffant à réglage de mode d'urgence
EP1002997B1 (fr) Procédé pour commander le rapport d'air / carburant d'un brûleur à gaz prémélangé complet
EP1450102A1 (fr) Appareil de chauffage et procédé de fonctionnement correspondant
EP1236957A2 (fr) Procédé et dispositif d'adaptation d'un appareil de chauffage à brûleur à un système d'évacuation d'air/de gaz brûlés
EP0615095B1 (fr) Commande de brûleur
DE102018130096A1 (de) Kochersteuerverfahren zum Reduzieren von Stickoxiden durch Anpassen einer Verbrennungsluft durch Erfassung von Abgasbestandteilen in Echtzeit
EP1333227B1 (fr) Procédé d'ajustement d'un appareil de chauffage incorporant un brûleur à son système d'échappement et/ou de tirage en air
EP1091174A1 (fr) Méthode de réglage des caractéristiques de brûleurs
DE10111077C2 (de) Verfahren zum Regeln eines Brenners eines Gasverbrennungsgeräts
EP1918637A1 (fr) Contrôle d'un four à biomasse
EP0614051B1 (fr) Automate à brûleur
DE102007005149B4 (de) Verbrennungsvorrichtung
DE19515656A1 (de) Heizgerät und Verfahren zur Regelung eines Heizgerätes
DE19607854A1 (de) Heizgerät und Verfahren zur Regelung eines Heizgerätes
DE102004063992B4 (de) Verfahren zur Steuerung einer Feuerungseinrichtung und Feuerungseinrichtung
EP3896339A1 (fr) Procédé d'ajustement d'une commande d'un appareil de chauffage
EP0644376B1 (fr) Procédé et dispositif de régulation d'un brûleur
DE3731318C2 (fr)
DE102004030300A1 (de) Verfahren zur Einstellung eines Betriebsparameters einer Feuerungseinrichtung und Feuerungseinrichtung
DE10121985A1 (de) Verfahren zum Betrieb eines Gasbrenners

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20050225

AKX Designation fees paid

Designated state(s): DE ES FR IT

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR IT

17Q First examination report despatched

Effective date: 20090710

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20091121