EP0643274B1 - Monitoring device for condensing boiler installations - Google Patents

Monitoring device for condensing boiler installations Download PDF

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Publication number
EP0643274B1
EP0643274B1 EP94113843A EP94113843A EP0643274B1 EP 0643274 B1 EP0643274 B1 EP 0643274B1 EP 94113843 A EP94113843 A EP 94113843A EP 94113843 A EP94113843 A EP 94113843A EP 0643274 B1 EP0643274 B1 EP 0643274B1
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EP
European Patent Office
Prior art keywords
suction fan
condensing boiler
temperature
temperature sensor
gas conduit
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
EP94113843A
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German (de)
French (fr)
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EP0643274A1 (en
Inventor
Richard Vetter
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Individual
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Individual
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Publication of EP0643274A1 publication Critical patent/EP0643274A1/en
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
    • F24D5/06—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated
    • F24D5/08—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated with hot air led through radiators
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/10—Measuring temperature stack temperature
    • 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

Definitions

  • the invention relates to an exhaust pipe for condensing boiler systems, especially for systems with hot water boilers, the one or more, the condensing boiler downstream, through which the combustion gases flow Heat exchanger especially for the floor, ceiling or Wall heating and a suction fan are associated with a monitoring device for the condensing boiler system, the chimney system for preheating the Combustion air is formed.
  • the Exhaust pipe serves to preheat the combustion air where at the end of the usable range of exhaust gases within the Exhaust pipe a suction fan and monitoring devices are arranged. With these monitoring facilities is used by temperature sensors assumed, but these are not used to monitor the Exhaust gas temperature.
  • the invention is based on the object at the outset to improve plants mentioned so that their Functionality can be monitored safely and easily can; continue to be a simple, modular design for suction fan and monitoring device possible be.
  • the suction fan is used to achieve this object a temperature meter or temperature sensor for Determination of the temperature of the exhaust or combustion gases assigned, and the suction fan forms the upper Completion of the pipe carrying the combustion gases or the chimney head, the feed opening for the Combustion air from the boiler close below the top End of the tube is located.
  • the exhaust fan is placed on the chimney and there provided with the temperature sensor mentioned.
  • the boiler 1 with burner 2 an inlet 3 for the preheated combustion air to feed one inside of the boiler 1 air preheater with outlet 4 and connection 5 for introducing the combustion air into the Combustion chamber, has an outlet for the combustion or Exhaust gases 6, a tube heat exchanger 7 as floor heating and a wall heater 8 - also as Tubular heat exchangers executed - feeds, so the anyway Exhaust gas temperature already below the dew point further reduce and the exhaust gas heat as space heating too use.
  • the path of the exhaust gases - shown by arrows 9 - leads to a horizontal pipe section 10 and one yourself adjoining vertical chimney section 11, which is located outside a house and in the open End carries a suction fan 12, from which the Combustion or exhaust gases in the sense of arrow 13 into the open to lead.
  • Sections 10 and 11 are located centrally in a larger tube 14, which is close below the Suction fan 12 ends. There flows in the direction of the arrows 15 combustion air through the sections 10, 11th is preheated and so below on the connecting pipe 16 Chimney system leaves.
  • the connecting pipe 16 leads to the inlet 3, so that Combustion air can be heated further.
  • the exhaust gas heat is thus used via the Heat exchanger 7, 8 and the chimney system or Pipes 10, 11 and 14.
  • Temperature sensor 18 can, if necessary, also at another point the suction fan 12 may be arranged; preferably he will but attached to the pressure side of this fan, because the exhaust gases are no longer influenced by Can experience heat exchangers. In addition, this is Temperature sensor 18 is also a basis for one Outside temperature measurement in the event that a Boiler operation does not take place. It can also do so temperature measurement carried out to control the Boiler system can be used.

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  • 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 Steam Boilers And Waste-Gas Boilers (AREA)
  • Control Of Combustion (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The invention starts out from condensing boiler installations in which the waste-gas conduits are assigned one or more heat exchangers (7, 11, 14), through which the waste gases flow, and a suction fan (12) for the waste gases. In order to be able to monitor these installations simply and safely in particular however to be able to assess whether they are in working order, the suction fan (12), which is arranged at the end of the useful section of the waste-gas conduit, is equipped with a temperature meter (thermometer) or temperature sensor (18) located in the pressure stub. <IMAGE>

Description

Die Erfindung betrifft eine Abgasleitung für Brennwertkesselanlagen, insb. für Anlagen mit Warmwasserheizkesseln, der ein oder mehrere, dem Brennwertkessel nachgeschaltete, von den Verbrennungsgasen durchströmte Wärmetauscher insb. für die Fußboden-, Decken- oder Wandheizung und ein Saugventilator zugeordnet sind, mit einer Überwachungseinrichtung für die Brennwertkesselanlage, wobei die Schornsteinanlage zur Vorwärmung der Verbrennungsluft ausgebildet ist.The invention relates to an exhaust pipe for condensing boiler systems, especially for systems with hot water boilers, the one or more, the condensing boiler downstream, through which the combustion gases flow Heat exchanger especially for the floor, ceiling or Wall heating and a suction fan are associated with a monitoring device for the condensing boiler system, the chimney system for preheating the Combustion air is formed.

Es ist bekannt, den Kesseln dieser Anlagen Überwachungseinrichtungen zuzuordnen, jedoch arbeiten die Anlagen nur dann in optimaler Weise, wenn die Abgastemperaturen vergleichsweise niedrig sind, z.B. Werte von etwa 20°C erreicht haben, da nur so sichergestellt ist, daß eine gute Nutzung der eingespeisten Brennstoffe eingetreten ist und auch die zugehörigen Wärmetauscher in voller Höhe wirksam werden konnten.It is known to monitor the boilers of these plants assign, however the systems only work then in an optimal way when the exhaust gas temperatures are comparatively low, e.g. Values of around 20 ° C have reached, as this is the only way to ensure that a good use of the feed fuel has occurred and also the associated heat exchangers in full could take effect.

Aus der EP-A-0036 236 ist eine Heizanlage bekannt, deren Abgasleitung zur Vorwärmung der Verbrennungsluft dient, wobei am Ende der Nutzungsstrecke der Abgase innerhalb der Abgasleitung ein Saugventilator und Überwachungseinrichtungen angeordnet sind. Bei diesen Überwachungseinrichtungen wird zwar von Temperatursensoren ausgegangen, diese dienen jedoch nicht der Überwachung der Abgastemperatur.From EP-A-0036 236 a heating system is known, the Exhaust pipe serves to preheat the combustion air where at the end of the usable range of exhaust gases within the Exhaust pipe a suction fan and monitoring devices are arranged. With these monitoring facilities is used by temperature sensors assumed, but these are not used to monitor the Exhaust gas temperature.

Weiterhin ist eine Regelungseinrichtung für eine Heizanlage bekannt (EP-A-0050 287), die in der Abgasleitung einen Absaugventilator und auf dessen Druckseite einen Temperaturfühler aufweist. Die Abgase werden hier jedoch direkt von der Brennkammer in die Umwelt befördert, ohne daß eine weitere Nutzung ihrer Energie z.B. zur Verbrennungsluftvorwärmung oder zur Raumheizung vorgesehen ist.There is also a control device for a heating system known (EP-A-0050 287) in the exhaust pipe a suction fan and one on the pressure side Has temperature sensor. The exhaust gases are here, however transported directly from the combustion chamber into the environment without that further use of their energy e.g. for preheating combustion air or provided for space heating is.

Der Erfindung liegt die Aufgabe zugrunde, die eingangs erwähnte Anlagen so zu verbessern, daß deren Funktionstüchtigkeit sicher und einfach überwacht werden kann; weiterhin soll eine einfache, modulartige Bauweise für Absaugventilator und Überwachungseinrichtung möglich sein.The invention is based on the object at the outset to improve plants mentioned so that their Functionality can be monitored safely and easily can; continue to be a simple, modular design for suction fan and monitoring device possible be.

Zur Lösung dieser Aufgabe ist erfindungsgemäß dem Saugventilator ein Temperaturmesser bzw. Temperaturfühler zur Ermittlung der Temperatur der Ab- bzw. Verbrennungsgase zugeordnet, und der Saugventilator bildet den oberen Abschluß des die Verbrennungsgase führenden Rohres bzw. den Schornsteinkopf, wobei sich die Zuführöffnung für die Verbrennungsluft des Kessels nahe unterhalb des oberen Endes des Rohres befindet.According to the invention, the suction fan is used to achieve this object a temperature meter or temperature sensor for Determination of the temperature of the exhaust or combustion gases assigned, and the suction fan forms the upper Completion of the pipe carrying the combustion gases or the chimney head, the feed opening for the Combustion air from the boiler close below the top End of the tube is located.

Der Absaugventilator wird auf den Schornstein aufgesetzt und dort mit dem erwähnten Temperaturfühler versehen. The exhaust fan is placed on the chimney and there provided with the temperature sensor mentioned.

Weitere Einzelheiten der Erfindung werden anhand der Zeichnung erläutert, in der ein Ausführungsbeispiel dargestellt ist. Es zeigen :

  • Fig. 1 einen Brennwertkessel als Warmwasserheizkessel mit nachgeschalteten Wärmetauschern, und zwar in schaubildlicher Darstellung,
  • Fig. 2 die schornsteinähnliche Abgaseinrichtung für den Kessel gemäss Fig. 1 im senkrechten Schnitt und
  • Fig. 3 einen Schnitt nach der Linie III - III von Fig. 2.
    • Further details of the invention will be explained with reference to the drawing, in which an embodiment is shown. Show it :
  • 1 shows a condensing boiler as a hot water boiler with downstream heat exchangers, in a diagrammatic representation,
  • Fig. 2 shows the chimney-like exhaust device for the boiler according to FIG. 1 in vertical section and
  • 3 shows a section along the line III - III of FIG. 2.

    • Der Kessel 1 mit Brenner 2, einem Eintritt 3 für die vorgewärmte Verbrennungsluft zum Speisen eines innerhalb des Kessels 1 befindlichen Luftvorwärmers mit Austritt 4 und Anschluss 5 zum Einleiten der Verbrennungsluft in die Brennkammer, hat einen Austritt für die Verbrennungs- bzw. Abgase 6, der einen Röhrenwärmmetauscher 7 als Bodenheizung und einen Wandheizkörper 8 - ebenfalls als Röhrenwärmetauscher ausgeführt - speist, um so die ohnehin schon unterhalb des Taupunktes liegende Abgastemperatur weiter zu senken und die Abgaswärme als Raumheizung zu nutzen. Der Weg der Abgase - durch Pfeile 9 aufgezeigt-führt zu einem waagerechten Rohrabschnitt 10 und einem sich daran anschliessenden senkrechten Schornsteinabschnitt 11, der ausserhalb eines Hauses angeordnet ist und am freien Ende einen Absaugventilator 12 trägt, von dem aus die Verbrennungs- bzw. Abgase im Sinne des Pfeiles 13 ins Freie führen. Die Abschnitte 10 und 11 befinden sich zentrisch in einem grösseren Rohr 14, das nahe unterhalb des Absaugventilators 12 endet. Dort strömt im Sinne der Pfeile 15 Verbrennungsluft ein, die durch die Abschnitte 10, 11 vorgewärmt wird und so unten über das Anschlussrohr 16 die Schornsteinanlage verlässt.The boiler 1 with burner 2, an inlet 3 for the preheated combustion air to feed one inside of the boiler 1 air preheater with outlet 4 and connection 5 for introducing the combustion air into the Combustion chamber, has an outlet for the combustion or Exhaust gases 6, a tube heat exchanger 7 as floor heating and a wall heater 8 - also as Tubular heat exchangers executed - feeds, so the anyway Exhaust gas temperature already below the dew point further reduce and the exhaust gas heat as space heating too use. The path of the exhaust gases - shown by arrows 9 - leads to a horizontal pipe section 10 and one yourself adjoining vertical chimney section 11, which is located outside a house and in the open End carries a suction fan 12, from which the Combustion or exhaust gases in the sense of arrow 13 into the open to lead. Sections 10 and 11 are located centrally in a larger tube 14, which is close below the Suction fan 12 ends. There flows in the direction of the arrows 15 combustion air through the sections 10, 11th is preheated and so below on the connecting pipe 16 Chimney system leaves.

    Das Anschlussrohr 16 führt zum Eintritt 3, damit die Verbrennungsluft weiter erwärmt werden kann.The connecting pipe 16 leads to the inlet 3, so that Combustion air can be heated further.

    Die Nutzung der Abgaswärme erfolgt somit über die Wärmetauscher 7, 8 und über die Schornsteinanlage bzw. die Rohre 10, 11 und 14.The exhaust gas heat is thus used via the Heat exchanger 7, 8 and the chimney system or Pipes 10, 11 and 14.

    Wünschenswert ist es, wenn die so abgekühlten Ab- oder Verbrennungsgase mit möglichst geringer Temperatur ins Freie gelangen z.B. mit Temperaturen, die im wesentlichen der Aussentemperatur bzw. der Temperatur im Freie entsprechen sollte. Um hier während des Kesselbetiebes stets einen genauen Überblick zu erhalten und ggfs. Massnahmen treffen zu können, ist der Druckstutzen 17 des Saugventilators 12 mit einem quer in den lichten Raum hineinragenden Temperaturfühler 18 ausgestattet. Die hier vermittelte und ggfs. am Kessel 1 an einem Armaturenbrett angezeigte Temperatur am Ende der Nutzstrecke erlaubt eine sofortige Beurteilung der wärmetechnischen Situation in Bezug auf den Wärmehaushalt der gesamten Anlage. Der Temperaturfühler 18 kann ggfs. auch an einer anderen Stelle des Saugventilator 12 angeordnet sein; vorzugsweise wird er jedoch an der Druckseite dieses Ventilators angebracht, weil die Abgase nunmehr keine weitere Beeinflussung durch Wärmetauscher erfahren können. Darüber hinaus ist dieser Temperaturfühler 18 zugleich eine Grundlage für eine Aussentemperaturmessung für den Fall, dass ein Kesselbetrieb nicht stattfindet. Auch kann die so vorgenommene Temperaturmessung weiterhin zur Steuerung der Kesselanlage mit herangezogen werden.It is desirable if the cooled off or Combustion gases with the lowest possible temperature ins Free people get e.g. with temperatures that are essentially the outside temperature or the outside temperature should match. To be here during boiler operation to always get a precise overview and, if necessary. To be able to take measures is the pressure nozzle 17 of the Suction fan 12 with a cross in the clear space protruding temperature sensor 18 equipped. This one mediated and possibly on the boiler 1 on a dashboard displayed temperature at the end of the usable section allows a immediate assessment of the thermal situation in Regarding the heat balance of the entire system. Of the Temperature sensor 18 can, if necessary, also at another point the suction fan 12 may be arranged; preferably he will but attached to the pressure side of this fan, because the exhaust gases are no longer influenced by Can experience heat exchangers. In addition, this is Temperature sensor 18 is also a basis for one Outside temperature measurement in the event that a Boiler operation does not take place. It can also do so temperature measurement carried out to control the Boiler system can be used.

    Claims (3)

    1. Waste gas conduit for condensing boiler systems, esp. for systems having hot water boilers, which conduit has associated therewith one or more heat exchangers (7, 8), which are connected downstream of the condensing boiler and are traversed by the combustion gases, esp. for the heating of floors, ceilings or walls and a suction fan (12), and a monitoring arrangement for the condensing boiler system, a flue being associated with the waste gas conduit, and the flue system being provided to preheat the combustion air, characterised in that the suction fan (12) has associated therewith a temperature gauge or temperature sensor (18) for determining the temperature of the waste or combustion gases, and the suction fan (12) forms the upper closure of the pipe (11), which guides the combustion gases, i.e. it forms the top of the flue, the supply aperture for the combustion air of the boiler being situated closely beneath the upper end of the pipe (11).
    2. Waste gas conduit according to claim 1, characterised in that the temperature gauge or resp. the temperature sensor (18) is situated on the pressure side of the suction fan (12).
    3. Waste gas conduit according to claim 2, characterised in that the temperature sensor (18) protrudes into the pressure connection (17) of the suction fan (12).
    EP94113843A 1993-09-14 1994-09-03 Monitoring device for condensing boiler installations Expired - Lifetime EP0643274B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE4331120 1993-09-14
    DE4331120A DE4331120A1 (en) 1993-09-14 1993-09-14 Monitoring device for condensing boiler systems

    Publications (2)

    Publication Number Publication Date
    EP0643274A1 EP0643274A1 (en) 1995-03-15
    EP0643274B1 true EP0643274B1 (en) 1998-11-25

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    ID=6497646

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP94113843A Expired - Lifetime EP0643274B1 (en) 1993-09-14 1994-09-03 Monitoring device for condensing boiler installations

    Country Status (3)

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    EP (1) EP0643274B1 (en)
    AT (1) ATE173811T1 (en)
    DE (2) DE4331120A1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE202008015206U1 (en) 2008-11-17 2009-07-30 Vincador Holding Gmbh Retrofit kit for a boiler for building heating

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2964726B1 (en) * 2010-09-13 2012-09-07 Aereco BOILER EQUIPMENT COMPRISING AT LEAST ONE MECHANICAL SAFETY SENSOR

    Family Cites Families (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2555417B2 (en) * 1975-12-10 1979-09-20 Kurt 5470 Andernach Tonk Device to improve the efficiency of water central heating systems
    NL8001474A (en) * 1980-03-12 1981-10-01 Rheem Bv HEATING DEVICE AND METHOD FOR CONTROLLING THEIR ENERGY CONDUCTION
    EP0050287A3 (en) * 1980-10-17 1983-01-19 Honeywell Inc. Control system for a temperature conditioning apparatus
    DE4037988A1 (en) * 1990-11-29 1992-06-04 Richard Vetter METHOD FOR HEATING BUILDINGS AND DEVICE FOR IMPLEMENTING THE METHOD

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE202008015206U1 (en) 2008-11-17 2009-07-30 Vincador Holding Gmbh Retrofit kit for a boiler for building heating
    EP2187137A2 (en) 2008-11-17 2010-05-19 Vincador Holding GmbH Retrofit construction kit for a boiler for heating a building

    Also Published As

    Publication number Publication date
    DE59407331D1 (en) 1999-01-07
    EP0643274A1 (en) 1995-03-15
    ATE173811T1 (en) 1998-12-15
    DE4331120A1 (en) 1995-03-16

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