EP0087539A1 - Feuerungen mit mechanischem Abzug - Google Patents

Feuerungen mit mechanischem Abzug Download PDF

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Publication number
EP0087539A1
EP0087539A1 EP82400367A EP82400367A EP0087539A1 EP 0087539 A1 EP0087539 A1 EP 0087539A1 EP 82400367 A EP82400367 A EP 82400367A EP 82400367 A EP82400367 A EP 82400367A EP 0087539 A1 EP0087539 A1 EP 0087539A1
Authority
EP
European Patent Office
Prior art keywords
temperature
fan
extractor
sensor
combustion
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
EP82400367A
Other languages
English (en)
French (fr)
Other versions
EP0087539B1 (de
Inventor
René Prevot
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.)
ELM Leblanc SAS
Original Assignee
ELM Leblanc SAS
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 ELM Leblanc SAS filed Critical ELM Leblanc SAS
Priority to DE198282400367T priority Critical patent/DE87539T1/de
Priority to EP82400367A priority patent/EP0087539B1/de
Priority to DE8282400367T priority patent/DE3276716D1/de
Priority to AT82400367T priority patent/ATE28242T1/de
Publication of EP0087539A1 publication Critical patent/EP0087539A1/de
Application granted granted Critical
Publication of EP0087539B1 publication Critical patent/EP0087539B1/de
Expired 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
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/245—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electrical or electromechanical 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
    • F23N1/065—Regulating fuel supply conjointly with draught using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/025—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using electrical or electromechanical 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
    • 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
    • F24H15/345—Control of fans, e.g. on-off control
    • F24H15/35—Control of the speed of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring 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

  • This invention relates to mechanical extraction boilers, of the gas suction type.
  • boilers of the gas suction type equipped with an extractor fan for the burnt gases, bring many advantages, because of their essential characteristic according to which the air necessary for the operation of the burner is taken outside the room where the boiler is located.
  • These boilers which can be simple (used only for heating), or mixed (used both for heating and for obtaining domestic hot water), operate in a sealed box, and the combustion of the gas delivered to the burner is independent of the environment in which they are installed.
  • the permanent operation of the extractor fan is not completely satisfactory, given, on the one hand, that it causes cooling which, in winter, is inappropriate due to the risk of frost, and, on the other hand apart, that it constantly removes calories from the heating body.
  • This invention proposes to provide a solution which overcomes these drawbacks, while ensuring efficient ventilation of the sealed combustion chamber of the boiler.
  • this invention relates to a gas boiler of the vacuum-tight type comprising an extractor fan for the evacuation of the products of combustion, characterized in that it is provided with a temperature sensor, placed at the location the most favorable of the boiler, to detect a rise in temperature due to the pilot light, this sensor controlling the actuation of said fan-extractor, when it reaches its switching on temperature, in order to ensure a cyclic scanning of the chamber combustion, thereby evacuating the combustion products.
  • said temperature sensor is fixed to the suction hood receiving the extractor fan, above the pilot light of the boiler, so as to be well ventilated when the fan is in action.
  • the fan-extractor which is operated either at reduced speed, or at the maximum extraction, stops only after a given time, function of the difference between the triggering temperature and the switching temperature, the thermal inertia of the sensor support, and the thermal flow of the pilot .
  • the switching-on temperature of the temperature sensor is chosen as a function of the volume of the combustion chamber and the time of saturation with carbon dioxide CO 2 resulting from the operation of the pilot.
  • the burner 8 and its pilot 7 At the lower part of the heating body 10 are arranged, in a known manner, the burner 8 and its pilot 7.
  • the latter supplied with gas by known means, not shown in the drawing, heats the thermocouple 9, still in an arrangement known.
  • the burner 8 and its pilot light 7 heat the exchanger 1, on which the pipes 12 are mounted in which the water to be heated circulates (sanitary and / or heating).
  • a temperature sensor 6 is fixed on the suction hood 2, above the pilot light 7, so that the products of the combustion of the pilot light heat the exchanger 1, the hood 2 and sensor 6.
  • the extractor fan 3, mounted in the hood 2 is supplied with electrical energy, as shown in the drawing, on the one hand directly by the temperature sensor 6, and, on the other hand, by a device servo (not shown) controlled by the gas supply 11 to the burner 8.
  • the fan-extractor 3 is put into operation either at maximum extraction, or at reduced speed, when the temperature sensor 6 reaches its switch-on temperature, and it does not stop until after a given time which, according to invention is a function of the difference between the triggering and switching on temperature of the sensor, the thermal inertia of the support of this sensor (the hood 2, in this embodiment), and the thermal flow rate of the pilot 7.
  • the operation is identical when the boiler heats sanitary fluid; the temperature sensor 6, requested in due to the rise in ambient temperature resulting from the operation of the burner 8, continues to supply the extractor fan 3, independently of the general control circuit, until the sensor is cooled to its tripping value. This ensures post combustion of the combustion chamber each time the boiler is shut down.

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)
  • Carbon And Carbon Compounds (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP82400367A 1982-03-03 1982-03-03 Feuerungen mit mechanischem Abzug Expired EP0087539B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE198282400367T DE87539T1 (de) 1982-03-03 1982-03-03 Feuerungen mit mechanischem abzug.
EP82400367A EP0087539B1 (de) 1982-03-03 1982-03-03 Feuerungen mit mechanischem Abzug
DE8282400367T DE3276716D1 (en) 1982-03-03 1982-03-03 Furnaces with mechanical extraction
AT82400367T ATE28242T1 (de) 1982-03-03 1982-03-03 Feuerungen mit mechanischem abzug.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82400367A EP0087539B1 (de) 1982-03-03 1982-03-03 Feuerungen mit mechanischem Abzug

Publications (2)

Publication Number Publication Date
EP0087539A1 true EP0087539A1 (de) 1983-09-07
EP0087539B1 EP0087539B1 (de) 1987-07-08

Family

ID=8189892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400367A Expired EP0087539B1 (de) 1982-03-03 1982-03-03 Feuerungen mit mechanischem Abzug

Country Status (3)

Country Link
EP (1) EP0087539B1 (de)
AT (1) ATE28242T1 (de)
DE (2) DE87539T1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0994303A1 (de) * 1998-10-16 2000-04-19 SRP 687 Pty Ltd. Wassererhitzer mit mechanischer Lüftung und Lufteinlässen gegen Flammenrückschlag
EP1122498A2 (de) * 2000-02-02 2001-08-08 Smiths Group PLC Gasgeräte und Steueranlage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358618A1 (fr) * 1976-07-15 1978-02-10 Leblanc Sa E L M Procede et dispositif de regulation du debit d'air d'une chaudiere etanche, chauffee au gaz
EP0038503A1 (de) * 1980-04-17 1981-10-28 Honeywell B.V. Gasbefeuerter Durchlauf-Warmwasserbereiter
FR2500123A1 (fr) * 1981-02-16 1982-08-20 Leblanc Sa E L M Perfectionnements apportes aux dispositifs d'extraction pour chaudieres a gaz du type etanche a ventouse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358618A1 (fr) * 1976-07-15 1978-02-10 Leblanc Sa E L M Procede et dispositif de regulation du debit d'air d'une chaudiere etanche, chauffee au gaz
EP0038503A1 (de) * 1980-04-17 1981-10-28 Honeywell B.V. Gasbefeuerter Durchlauf-Warmwasserbereiter
FR2500123A1 (fr) * 1981-02-16 1982-08-20 Leblanc Sa E L M Perfectionnements apportes aux dispositifs d'extraction pour chaudieres a gaz du type etanche a ventouse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0994303A1 (de) * 1998-10-16 2000-04-19 SRP 687 Pty Ltd. Wassererhitzer mit mechanischer Lüftung und Lufteinlässen gegen Flammenrückschlag
EP1122498A2 (de) * 2000-02-02 2001-08-08 Smiths Group PLC Gasgeräte und Steueranlage
GB2358915A (en) * 2000-02-02 2001-08-08 Smiths Group Plc Gas appliances and control systems
EP1122498A3 (de) * 2000-02-02 2004-01-21 Smiths Group PLC Gasgeräte und Steueranlage

Also Published As

Publication number Publication date
ATE28242T1 (de) 1987-07-15
DE3276716D1 (en) 1987-08-13
DE87539T1 (de) 1984-03-15
EP0087539B1 (de) 1987-07-08

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