EP3260777A1 - Procede de detection d'un blocage d'une evacuation des gaz d'echappement d'un systeme de bruleur et systeme de bruleur - Google Patents

Procede de detection d'un blocage d'une evacuation des gaz d'echappement d'un systeme de bruleur et systeme de bruleur Download PDF

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Publication number
EP3260777A1
EP3260777A1 EP16175599.6A EP16175599A EP3260777A1 EP 3260777 A1 EP3260777 A1 EP 3260777A1 EP 16175599 A EP16175599 A EP 16175599A EP 3260777 A1 EP3260777 A1 EP 3260777A1
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EP
European Patent Office
Prior art keywords
volume flow
burner system
burner
blockage
test
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
EP16175599.6A
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German (de)
English (en)
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EP3260777B1 (fr
Inventor
Alper Attias
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.)
Bosch Termoteknik Isitma ve Klima Sanayi Ticaret AS
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Bosch Termoteknik Isitma ve Klima Sanayi Ticaret AS
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Priority to EP16175599.6A priority Critical patent/EP3260777B1/fr
Publication of EP3260777A1 publication Critical patent/EP3260777A1/fr
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Publication of EP3260777B1 publication Critical patent/EP3260777B1/fr
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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
    • F23N5/24—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
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/70—Safety arrangements
    • 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
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed

Definitions

  • a method has already been proposed for detecting a blockage of an exhaust gas outlet of a burner system, in which at least one pressure characteristic within the exhaust gas outlet is detected and / or evaluated for detecting the blockage.
  • the invention is based on a method for detecting a blockage of an exhaust gas removal of a burner system, in which at least one pressure characteristic value for detecting the blockage is detected and / or evaluated.
  • test volume flow is generated to detect the blockage, which is greater than a Zündvolumenstrom the burner system.
  • a "burner system” is to be understood as meaning, in particular, a system which is intended to convert energy, in particular bioenergy and / or preferably fossil energy, into heat, in particular by means of a combustion process.
  • By "provided” is intended to be understood in particular specially programmed, designed and / or equipped.
  • the fact that an object is intended for a specific function should in particular mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.
  • the burner system at least one burner, at least one fan for supplying a combustion air and at least one fuel control valve for supplying a fuel.
  • the burner is in particular intended to burn a mixture, in particular a fuel mixture of a combustion air and a fuel.
  • the burner can be designed, in particular, as a power-modulating gas-jet burner.
  • a “fuel mixture” is to be understood in this context, in particular an ignitable mixture of a fuel and a combustion air, which is intended to be supplied to a burner of a burner system for carrying out a combustion process.
  • a “fuel” is preferably to be understood as meaning a hydrocarbon-containing gas or gas mixture, preferably a natural gas or a natural gas mixture, in particular a natural gas, a liquid gas or a biogas comprising at least one alkane, in particular methane, ethane, propane and / or butane to be understood.
  • exhaust gas removal is to be understood in particular as a hollow pipe or a hollow pipe system which is intended to discharge a combustion exhaust gas from a burner system, in particular from a combustion chamber of a burner system.
  • a pressure characteristic value is to be understood as meaning, in particular, a characteristic value which contains at least information about a pressure within the exhaust gas removal of the burner system. The pressure characteristic is detected in particular, for example by means of a pressure sensor and / or by means of a pressure switch, within the exhaust gas removal. In particular, it is concluded on the basis of the pressure characteristic value to a blockage of the exhaust gas discharge.
  • a "blockage of the exhaust gas removal” is to be understood in particular as meaning that a gas flow through the exhaust gas removal, in particular due to contamination and / or foreign bodies, is inhibited in such a way that combustion exhaust gases can no longer be dissipated to a sufficient extent.
  • test volume flow is to be understood as meaning, in particular, a volumetric flow which is generated exclusively for the purpose of detecting a blockage of the exhaust gas removal.
  • the test volume flow flows through the entire burner system.
  • the test volume flow corresponds in particular at least substantially a volume flow which can be generated maximally within the burner system, in particular by means of a blower of the burner system.
  • the test volume flow is preferably a particularly pure air volume flow.
  • the test volume flow has at least substantially no admixtures of a fuel.
  • ignition volume flow is to be understood as meaning, in particular, a volume flow which is required for optimal ignition of the burner system, in particular for igniting a burner of the burner system.
  • the ignition volume flow is between a minimum volume flow that can be generated within the burner system and a maximum flow that can be generated within the burner system.
  • the ignition volume flow is an air volume flow or a fuel-air volume flow.
  • the ignition volume flow at the beginning of an ignition process is a pure air volume flow to which a fuel is mixed in the course of the ignition process.
  • the pressure characteristic value is detected and / or evaluated in particular during the presence of the test volume flow, whereby a blockade of the exhaust gas discharge can be deduced directly on the basis of the pressure characteristic value.
  • a rise in the pressure characteristic value caused, in particular, by a blockage of a gas flow within the exhaust gas discharge is detected via a setpoint, in particular stored, and evaluated in such a way that a blockage of the exhaust gas removal is reliably established.
  • an improved method for detecting a blockage of an exhaust gas removal of a burner system can be provided.
  • an advantageously safe and / or reliable detection of blockages can be achieved by the test volume flow generated for the detection of a blockage which is greater than an ignition volume flow of the burner system.
  • partial blockages can also advantageously be detected, which would otherwise only be detectable during full-load operation of the burner system.
  • test volume flow is generated upon request of a burner operation of the burner system.
  • the test volume flow is generated in particular immediately after a request for burner operation of the burner system.
  • the generation of the test volume flow is in particular independent of the requested burner output.
  • test volume flow is generated before ignition of the burner system.
  • an ignition of the burner system takes place after an evaluation of the pressure characteristic value detected during the presence of the test volume flow.
  • blockages of the exhaust gas removal can advantageously be detected before ignition of the burner system.
  • the burner system is put out of operation when a limit value is exceeded by the pressure characteristic value during the presence of the test volume flow.
  • the burner system is "put out of operation" is to be understood in particular that the burner system is placed in particular in a fault mode, in which in particular an influx of fuel into the burner system and igniting the burner system is prevented, and / or completely switched off .
  • an operator and / or operator of the burner system can be issued an error and / or warning message when exceeding a limit value by the pressure characteristic value, which indicates that there is a blockage of the exhaust gas removal.
  • an advantageously safe operation of the burner system can be achieved.
  • an enrichment of an ambient air with combustion exhaust gases, in particular with carbon monoxide which can no longer be sufficiently dissipated due to a blockage of the exhaust gas removal, can be advantageously prevented.
  • test volume flow is reduced to the ignition volume flow before ignition of the burner system.
  • test volume flow while maintaining the limit value by the pressure characteristic value during the presence of the test volume flow, for the ignition of the burner system is reduced so that it corresponds to the flow value of the ignition volume flow.
  • the burner system can advantageously be displaced simply and / or quickly from a test mode in an ignition mode.
  • a fan of the burner system for generating the vomvolumenstroms is temporarily operated at a speed which is above a speed for generating the Zündvolumenstroms.
  • a burner device with a test unit for detecting a blockage of an exhaust gas outlet of a burner system, wherein the test unit has at least one pressure sensor which is provided to detect at least one pressure characteristic, wherein the test unit is provided to generate a test volume flow for detecting the blockage , which is greater than a Zündvolumenstrom the burner system.
  • a "test unit” is to be understood in particular as a unit designed as a hardware unit and / or at least partially as a software unit, which is intended to record and evaluate the print parameter, in particular directly, in particular by means of sensors and / or measuring sensors, as an operating measured value.
  • the test unit may be at least partially formed integrally with a control and / or regulating unit of the burner system and / or connected thereto.
  • a "control and / or regulating unit” is to be understood as meaning in particular a unit having at least one control electronics.
  • control electronics is meant in particular a unit with a processor unit and with a memory unit and with an operating program stored in the memory unit.
  • the pressure sensor may in particular be designed as an absolute pressure sensor, a differential pressure sensor and / or as a pressure switch. The pressure sensor is in particular provided to detect the pressure characteristic within the exhaust gas discharge.
  • the test unit is intended to directly or indirectly, in particular via the control and / or control unit to control a fan of the burner system for generating the test volume flow.
  • the test volume flow generated for the detection of a blockage which is greater than an ignition volume flow of the burner system an advantageously safe and / or reliable detection of blockages can be achieved.
  • partial blockages can also advantageously be detected, which would otherwise only be detectable during full-load operation of the burner system.
  • inventive method should not be limited to the application and embodiment described above.
  • the method according to the invention can have a number deviating from a number of individual elements, components and units mentioned herein.
  • the burner system 10 comprises a burner 24, a blower 14 and an exhaust gas discharge 20.
  • the burner system 10 is supplied via a fuel feed line 26, a gaseous fuel 28, for example, a natural gas.
  • a combustion air 32 is supplied to the burner system 10 via a combustion air feed line 30.
  • the fuel 28 and the combustion air 32 are mixed to form an ignitable fuel mixture 34 and fed to the burner 24.
  • the supply of the fuel mixture 34 takes place by means of the burner 24 upstream of the blower 14.
  • the resulting during the combustion process in the burner 24 combustion exhaust gases 36 are discharged via the exhaust discharge 20.
  • the burner system 10 has a valve 38, which is arranged in the fuel supply line 26.
  • the valve 38 is preferably designed as an electronic control valve.
  • the valve 38 is provided to control a fuel flow 40.
  • the burner system 10 has a burner device 16 with a test unit 18 for detecting a blockage 12 of an exhaust gas discharge 20.
  • the test unit 18 may in particular be at least partially formed in one piece with a control and / or regulating unit, not shown here, of the burner system 10 and / or connected thereto.
  • the test unit 18 has a pressure sensor 22, which is provided to detect at least one pressure characteristic within the exhaust gas outlet 20.
  • the pressure sensor 22 may in particular be designed as an absolute pressure sensor, a differential pressure sensor and / or preferably as a pressure switch.
  • the test unit 18 is provided to generate a test volume flow for detecting the blockage 12, which is greater than an ignition volume flow of the burner system 10.
  • the test unit 18 is provided to control the blower 14 to generate the test volume flow.
  • the blower 14 of the burner system 10 is temporarily operated to generate the sketchvolumenstroms at a speed which is above a speed for generating the Zündvolumenstroms.
  • the test unit 18 is provided to detect and evaluate the pressure characteristic value during the presence of the test volume flow by means of the pressure sensor 22. On the basis of the pressure characteristic can directly on a blockage 12 of the exhaust gas discharge 20 are closed. In particular, a rise in the pressure characteristic value caused by a blockage 12 in the exhaust gas discharge 20 caused by a blockage 12 is detected via a setpoint stored in the test unit 18 and evaluated to the effect that a blockage 12 of the exhaust gas discharge 20 can be reliably detected.
  • FIG. 2 shows a flowchart of a method for detecting a blockage 12 of the exhaust discharge 20 of the burner system 10, in which the pressure characteristic value for detecting the blockage 12 is detected and / or evaluated.
  • the test volume flow is generated in a method step 42.
  • the test volume flow is greater than the ignition volume flow of the burner system 10.
  • the test volume flow is generated immediately after request 44 of a burner operation of the burner system 10 and before ignition of the burner system 10.
  • the blower 14 of the burner system 10 is temporarily operated to generate the strigvolumenstroms at a speed which is above a speed for generating the Zündvolumenstroms.
  • the valve 38 is closed.
  • the test volume flow is a pure air volume flow.
  • the pressure characteristic value is detected and evaluated during the presence of the test volume flow.
  • the burner system 10 is set at a threshold value exceeded by the pressure characteristic during a presence of the test volume flow in a further process step 48 out of service. If the limit value has not been exceeded, the test volume flow is reduced to the ignition volume flow before ignition of the burner system 10 in a further method step 50.
  • the valve 38 is closed. The set in this way ignition flow is initially a pure air flow. After setting the Zündvolumenstroms the valve 38 is opened and the burner 24 ignited in a further method step 54. After opening the valve 38, the ignition volume flow is a required for ignition of the burner 24 fuel-air flow rate. After the ignition of the burner 24, the burner system 10 is in a normal burner operation 52 via.

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  • 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)
EP16175599.6A 2016-06-22 2016-06-22 Procede de detection d'un blocage d'une evacuation des gaz d'echappement d'un systeme de bruleur et systeme de bruleur Active EP3260777B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16175599.6A EP3260777B1 (fr) 2016-06-22 2016-06-22 Procede de detection d'un blocage d'une evacuation des gaz d'echappement d'un systeme de bruleur et systeme de bruleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16175599.6A EP3260777B1 (fr) 2016-06-22 2016-06-22 Procede de detection d'un blocage d'une evacuation des gaz d'echappement d'un systeme de bruleur et systeme de bruleur

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EP3260777A1 true EP3260777A1 (fr) 2017-12-27
EP3260777B1 EP3260777B1 (fr) 2020-02-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3896340A1 (fr) * 2020-04-17 2021-10-20 Vaillant GmbH Procédé de détection d'un blocage présent ou d'un risque de blocage d'au moins un chemin d'écoulement
US20220136736A1 (en) * 2020-10-29 2022-05-05 Johnson Controls Tyco IP Holdings LLP Systems and methods for operating a furnace system
CN115219253A (zh) * 2021-04-15 2022-10-21 威能有限公司 用于测试加热器的排气装置的方法、计算机程序、存储介质、控制器、加热器和用途

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105888A (en) * 1981-09-15 1983-03-30 Worcester Engineering Company Detecting flue blockage
EP0898120A1 (fr) * 1996-05-09 1999-02-24 Gastar Co., Ltd. Equipement a combustion et procede d'estimation de la duree de vie d'un equipement a combustion
CA2544994A1 (fr) * 2006-04-27 2007-10-27 Fabricant De Poeles International Inc. Detecteur d'obstruction de conduit de fumee pour appareils de chauffage autonomes a mazout
WO2013117516A1 (fr) * 2012-02-09 2013-08-15 Sit La Precisa S.P.A. Con Socio Unico Procédé de contrôle d'un brûleur de chaudière et système de contrôle fonctionnant selon ce procédé

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000304255A (ja) * 1999-02-19 2000-11-02 Rinnai Corp 強制給排気式燃焼装置の給排気筒閉塞検知装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105888A (en) * 1981-09-15 1983-03-30 Worcester Engineering Company Detecting flue blockage
EP0898120A1 (fr) * 1996-05-09 1999-02-24 Gastar Co., Ltd. Equipement a combustion et procede d'estimation de la duree de vie d'un equipement a combustion
CA2544994A1 (fr) * 2006-04-27 2007-10-27 Fabricant De Poeles International Inc. Detecteur d'obstruction de conduit de fumee pour appareils de chauffage autonomes a mazout
WO2013117516A1 (fr) * 2012-02-09 2013-08-15 Sit La Precisa S.P.A. Con Socio Unico Procédé de contrôle d'un brûleur de chaudière et système de contrôle fonctionnant selon ce procédé

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3896340A1 (fr) * 2020-04-17 2021-10-20 Vaillant GmbH Procédé de détection d'un blocage présent ou d'un risque de blocage d'au moins un chemin d'écoulement
US20220136736A1 (en) * 2020-10-29 2022-05-05 Johnson Controls Tyco IP Holdings LLP Systems and methods for operating a furnace system
US12359846B2 (en) * 2020-10-29 2025-07-15 Johnson Controls Light Commercial Ip Gmbh Systems and methods for operating a furnace system
CN115219253A (zh) * 2021-04-15 2022-10-21 威能有限公司 用于测试加热器的排气装置的方法、计算机程序、存储介质、控制器、加热器和用途
EP4134588A1 (fr) * 2021-04-15 2023-02-15 Vaillant GmbH Procédé de vérification d'une installation de gaz d'échappement d'un appareil de chauffage

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