EP1845318A2 - Procédé de surveillance d'un dispositif de sécurité à écoulement - Google Patents

Procédé de surveillance d'un dispositif de sécurité à écoulement Download PDF

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Publication number
EP1845318A2
EP1845318A2 EP07006941A EP07006941A EP1845318A2 EP 1845318 A2 EP1845318 A2 EP 1845318A2 EP 07006941 A EP07006941 A EP 07006941A EP 07006941 A EP07006941 A EP 07006941A EP 1845318 A2 EP1845318 A2 EP 1845318A2
Authority
EP
European Patent Office
Prior art keywords
heater
temperature
temperature sensor
exhaust
pipe connection
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.)
Ceased
Application number
EP07006941A
Other languages
German (de)
English (en)
Other versions
EP1845318A3 (fr
Inventor
Hans-Willi Müller
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 EP1845318A2 publication Critical patent/EP1845318A2/fr
Publication of EP1845318A3 publication Critical patent/EP1845318A3/fr
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
    • F24H9/2042—Preventing or detecting the return of combustion gases
    • F24H9/205—Closing the energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
    • F23M9/003—Baffles or deflectors for air or combustion products; Flame shields in flue gas ducts
    • F23M9/006—Backflow diverters
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/235—Temperature of exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/254—Room temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/36—Control of heat-generating means in heaters of burners

Definitions

  • the invention relates to a method for monitoring a flow safety device for heaters.
  • a flow safety device serves as a train interruption between the heater and the chimney.
  • several devices can be operated independently of each other on a common fireplace;
  • the flow control is used to ensure that exhaust backflow or backflow does not interfere with the operation of the heater. Short-term disturbances, for example due to pressure surges on the chimney, are largely decoupled from the heater and thus do not immediately cause the flame to go out.
  • Flow fuses must be monitored. So it is necessary that in the case in which the exhaust gases can not be discharged through a closed fireplace, the heater is switched off. If, for example, a chimney is closed by a stork's nest, a jam forms in the chimney. The exhaust gases then exit through lateral openings of the flow control. If an exhaust gas sensor is located there, then it can be recognized that the exhaust gas escapes at an undesired location and a device shutdown is initiated.
  • the exhaust gas sensors are usually temperature sensors in the form of NTCs (electrical resistance with a negative temperature coefficient). However, there may be situations in which, despite the open fireplace Exhaust gas exits into the installation room, wherein this exhaust gas outlet can not be determined by means of the usual sensors. In this case, this outlet can be detected via another sensor.
  • the invention is therefore based on the object to ensure safe operation of the heater in all conceivable operating conditions and to prevent exhaust gas leakage into the installation room.
  • the monitoring method is activated only after a predetermined operating time of the heater. This ensures that the unsteady starting state has been overcome and the sensors have at least approximately reached their operating temperature.
  • a device for carrying out the method according to claim 1 is protected.
  • a third temperature sensor is provided by which the function of the two other sensors can be monitored.
  • FIG. 1 shows a flow safety device 1 according to the prior art with a lower exhaust manifold 2, which is arranged above a heat exchanger, not shown, of a heater.
  • An upper exhaust manifold 7 opens into an exhaust pipe connection 3, from which an unillustrated exhaust pipe leads into a chimney.
  • a baffle 5 centrally below the exhaust pipe connection 3.
  • the flow control 1 has side openings 6, in each of which deflections 4 are located.
  • the deflections 4 have a semicircular contour and are arranged such that the semi-closed semi-circle below the side walls of the upper exhaust manifold 7 is arranged.
  • a temperature sensor 8 In the lower exhaust collector 2 as well as above a deflection 4 located in a lateral opening 6 on the side facing the installation space there is in each case a temperature sensor 8, 9.
  • Figure 2 shows an alternative device for monitoring the flow control 1 according to the prior art, in which only the temperature above the deflection 4 is detected by the temperature sensor 9. If the temperature detected by means of the temperature sensor 9 exceeds a predetermined threshold value, this is a signal that exhaust gas exits into the installation space. The heater is switched off. Also in this case, the case is not detected in the exhaust gas exits through the side opening 6 below the deflection 4 in the installation room.
  • FIG. 3 shows a device according to the invention which differs from the device according to FIG. 1 in that the one temperature sensor 8 is not located inside the lower exhaust collector 2 but in the upper exhaust collector 7.
  • the hot exhaust gases flow through the upper exhaust collector 7 before they escape into the chimney and thereby heat the temperature sensor 8, which is located centrally below the exhaust pipe connection 3. Meanwhile, the temperature sensor 9 remains above the one located in the side opening 6 deflection 4 on the side facing the installation room cool. Due to the large temperature difference of the temperature detected by the two temperature sensors 8, 9, the heater remains switched on.
  • the temperature sensor 9 is heated, the temperature difference between the two, by means of the temperature sensors 8, 9 detected temperatures is lower, the heater is turned off.
  • the temperature sensors 8, 9 are initially at the level of the temperature of the installation room. If the monitoring program were activated immediately with the release of the fuel gas, the burner could not be started. It is therefore provided that the burner is initially in operation for a few seconds before the monitoring program checks the functionality of the flow safety device by means of the detected temperatures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Exhaust Gas After Treatment (AREA)
EP07006941A 2006-04-10 2007-04-03 Procédé de surveillance d'un dispositif de sécurité à écoulement Ceased EP1845318A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0061306A AT503132B1 (de) 2006-04-10 2006-04-10 Verfahren zur überwachung einer strömungssicherung für heizgeräte

Publications (2)

Publication Number Publication Date
EP1845318A2 true EP1845318A2 (fr) 2007-10-17
EP1845318A3 EP1845318A3 (fr) 2009-02-25

Family

ID=38222353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07006941A Ceased EP1845318A3 (fr) 2006-04-10 2007-04-03 Procédé de surveillance d'un dispositif de sécurité à écoulement

Country Status (3)

Country Link
EP (1) EP1845318A3 (fr)
AT (1) AT503132B1 (fr)
DE (1) DE102007015962A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2175210A2 (fr) 2008-10-09 2010-04-14 Robert Bosch GmbH Appareil de chauffage doté d'un dispositif de surveillance des gaz d'échappement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021124643A1 (de) 2021-09-23 2023-03-23 Vaillant Gmbh Verfahren zur Erkennung des Erlöschens einer Flamme eines Brenners

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076574A (en) 1980-05-24 1981-12-02 Vaillant Joh Gmbh & Co Fuel-heated Heat Source
DE3020228A1 (de) * 1980-05-24 1981-12-03 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brennstoffbeheizte waermequelle
EP0175890A1 (fr) * 1984-08-15 1986-04-02 Joh. Vaillant GmbH u. Co. Méthode de produire d'un signal d'arrêt d'un appareil chauffé au gaz
DE9105984U1 (de) * 1990-05-16 1991-08-08 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Überwachungseinrichtung
DE9210859U1 (de) * 1991-08-16 1992-10-08 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Heizgerät
EP0881439A2 (fr) * 1997-05-30 1998-12-02 Robert Bosch Gmbh Chauffe-eau à gaz avec capot pour collecter les gaz de combustion
EP0905458A2 (fr) * 1997-09-24 1999-03-31 Robert Bosch Gmbh Chauffe-eau à gaz avec dispositif pour la surveillance du gaz de combustion
DE69606735T2 (de) * 1995-05-26 2000-09-28 Sdecc Sicherheitsgerät bei Rückstrom der Abgase von Gasheizern und -Kesseln

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076574A (en) 1980-05-24 1981-12-02 Vaillant Joh Gmbh & Co Fuel-heated Heat Source
DE3020228A1 (de) * 1980-05-24 1981-12-03 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brennstoffbeheizte waermequelle
EP0175890A1 (fr) * 1984-08-15 1986-04-02 Joh. Vaillant GmbH u. Co. Méthode de produire d'un signal d'arrêt d'un appareil chauffé au gaz
DE9105984U1 (de) * 1990-05-16 1991-08-08 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Überwachungseinrichtung
DE9210859U1 (de) * 1991-08-16 1992-10-08 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Heizgerät
DE69606735T2 (de) * 1995-05-26 2000-09-28 Sdecc Sicherheitsgerät bei Rückstrom der Abgase von Gasheizern und -Kesseln
EP0881439A2 (fr) * 1997-05-30 1998-12-02 Robert Bosch Gmbh Chauffe-eau à gaz avec capot pour collecter les gaz de combustion
EP0905458A2 (fr) * 1997-09-24 1999-03-31 Robert Bosch Gmbh Chauffe-eau à gaz avec dispositif pour la surveillance du gaz de combustion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2175210A2 (fr) 2008-10-09 2010-04-14 Robert Bosch GmbH Appareil de chauffage doté d'un dispositif de surveillance des gaz d'échappement
DE102008051060A1 (de) 2008-10-09 2010-04-22 Robert Bosch Gmbh Heizgerät mit Abgasüberwachungseinrichtung
DE102008051060B4 (de) * 2008-10-09 2012-04-12 Robert Bosch Gmbh Heizgerät mit Abgasüberwachungseinrichtung

Also Published As

Publication number Publication date
EP1845318A3 (fr) 2009-02-25
DE102007015962A1 (de) 2007-10-11
AT503132A4 (de) 2007-08-15
AT503132B1 (de) 2007-08-15

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