EP0291584A1 - Appareil de chauffage comportant un brûleur alimenté par un mélange substantiellement stoechiométrique de combustible et d'air - Google Patents

Appareil de chauffage comportant un brûleur alimenté par un mélange substantiellement stoechiométrique de combustible et d'air Download PDF

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Publication number
EP0291584A1
EP0291584A1 EP87200957A EP87200957A EP0291584A1 EP 0291584 A1 EP0291584 A1 EP 0291584A1 EP 87200957 A EP87200957 A EP 87200957A EP 87200957 A EP87200957 A EP 87200957A EP 0291584 A1 EP0291584 A1 EP 0291584A1
Authority
EP
European Patent Office
Prior art keywords
burner
gas
duct
ignition
combustion air
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Withdrawn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
EP87200957A
Other languages
German (de)
English (en)
Inventor
Ronald Hubertus Theodorus Maria Hezemans
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.)
Apparatenfabriek Atag BV
Original Assignee
Apparatenfabriek Atag BV
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 Apparatenfabriek Atag BV filed Critical Apparatenfabriek Atag BV
Publication of EP0291584A1 publication Critical patent/EP0291584A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks

Definitions

  • the invention relates to a heating apparatus comprising a burner of the type to which a substantially stoichiometric fuel/air mixture is supplied, a flow duct accommodating the burner consisting of a feed duct for combustion air and a discharge duct for combustion gas, a gas line opening out into the feed duct and provided with a gas valve, a mixing box for mixing gas from the gas line with combustion air and an ignition comprising a spark forming element.
  • a burner of such a heating apparatus is also sometimes called a fully pre-mixed burner. This means that all the air necessary for combustion is mixed in one stage with the gas for combustion.
  • a burner has a very small burn-out hei­ght, as a result of which a heat exchanger can be arranged at a small interval from the burner, which results in a limited total construction height.
  • Known heating apparatuses of this type comprise a pilot burner to which a small part of the gas is fed and ignited using the spark-forming element. When the pilot burner is burning the quantity of gas corresponding to the full loading of the burner is supplied and the main burn­er is ignited using the pilot burner. Owing to the presence of the pilot burner, the separate gas supply for same and the extra gas tap that is required, this heating apparatus is comparatively complicated.
  • the invention has for its object to give a heating app­aratus of the type described in the preamble a simpler and more compact form.
  • This is achieved in a heating apparatus according to the invention because the burner comprises only a main burner, because the spark forming element is position­ed in the direct proximity of the main burner, for the pur­pose of ignition of same, and the gas valve comprises only one closable gas duct.
  • the burner can be ignited directly in very reliable manner, while the quantity of gas/air corresponding to a full load is supplied thereto.
  • the ignition is reliable to the extent that direct ignition of a wholly pre-mixed burner at full load is permissible acc­ording to the invention, for example, for domestic heating installations.
  • the flow duct comprises a fan and an adjustable restrict­ion.
  • the invention will be further elucidated with reference to the annexed drawing.
  • the figure shows a schematic view of a heating apparatus according to the invention.
  • the heating apparatus 1 in fig. 1 comprises a burner 2 which in this embodiment takes the form of a so-called fully pre-mixed burner.
  • Burner 2 is accommodated in a flow duct 3 which consists of a combustion air feed duct 4 and a combust­ion gas discharge duct 5.
  • Feed duct 4 and discharge duct 5 respectively lead from and to the outside.
  • a fan 9 Accommodated in feed duct 4 is a fan 9 which is driven by a motor 10. At the location of the fan 9 gas is carried into the duct 4 via gas supply 7. This supply at the location of the fan 9 results in a good mixing of gas and combustion air. The supply of gas is regulated using gas tap 8.
  • a heat exchanger 11 Located in the combustion gas discharge duct 5 is a heat exchanger 11. This also forms part of the water circuit 12 in which water is force circulated using pump 13. The water supplied with pump 13 is heated in the heat exchanger 11.
  • the burner 2 comprises a perforated plate 20 for dis­tribution of the supplied gas/air mixture and a ceramic bur­ner plate 21 placed beneath it having a large number of fine channels.
  • the supplied combustible mixture is ignited using the ignition 24 on the underside of ceramic plate 21.
  • Heating apparatus 1 further comprises a control device 14. Connected to control device 14 are a control thermostat 15 and a maximum thermostat 16 which co-operate with feelers 17 protruding into the heating water. Also fitted is a flow switch 18 so that the control device 14 can detect whether the pump 13 is functioning.
  • the gas tap 8, the fan motor 10 and pump 13 are controlled by control device 14.
  • a generally known pressure/ temperature gauge is fitted.
  • an adjustable compensating valve 22 Arranged for adjustment of the resistance corresponding with an optimum combustion air delivery in the whole of the flow duct 3 is an adjustable compensating valve 22. Adjust­ment can be controlled with the pressure sensor 23.
  • the gas tap 8 comprises only one closable gas duct.
  • the motor 10 of fan 9 is actuated, following which the gas tap 8 is placed from the closed to the opened position in one action.
  • gas flows via line 7 into the combustion air feed duct 4.
  • a quantity of gas/air mixture corresponding to full load­ing of the burner is thus supplied to burner 2.
  • the schematically shown ign­ition plug 24 is switched on, igniting the flame on the und­erside of the ceramic burner plate 21 as soon as the mixture containing gas arrives there. It is apparent that the entire gas control and ignition system according to the invention is exceptionally simple.
  • the adjustable restriction 22 in the form of a butterfly valve is placed in a suitable position.
  • the suitable position is determined using a pressure difference sensor 23 which determines the difference in pressure on either side of a nozzle. This difference in pressure is proportional to the volume flow through the nozzle.

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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)
EP87200957A 1986-01-31 1987-05-21 Appareil de chauffage comportant un brûleur alimenté par un mélange substantiellement stoechiométrique de combustible et d'air Withdrawn EP0291584A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8600248A NL8600248A (nl) 1986-01-31 1986-01-31 Verwarmingsinrichting omvattende een brander van het type waaraan een nagenoeg stoechiometrisch brandstof/luchtmengsel wordt toegevoerd.

Publications (1)

Publication Number Publication Date
EP0291584A1 true EP0291584A1 (fr) 1988-11-23

Family

ID=19847510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87200957A Withdrawn EP0291584A1 (fr) 1986-01-31 1987-05-21 Appareil de chauffage comportant un brûleur alimenté par un mélange substantiellement stoechiométrique de combustible et d'air

Country Status (2)

Country Link
EP (1) EP0291584A1 (fr)
NL (1) NL8600248A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8600248A (nl) * 1986-01-31 1987-08-17 Atag Bv Apparatenfab Verwarmingsinrichting omvattende een brander van het type waaraan een nagenoeg stoechiometrisch brandstof/luchtmengsel wordt toegevoerd.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337517A1 (de) * 1973-07-24 1975-02-13 Junkers & Co Gasbeheizter wassererhitzer
FR2417063A1 (fr) * 1978-02-14 1979-09-07 Motan Gmbh Dispositif de chauffage a bruleur
DE3041265A1 (de) * 1980-11-03 1982-09-30 Wilhelm 6902 Sandhausen Krämer Oel- und gasheizkessel mit integrierter abgas- und adsorptionswaermegewinnungsvorrichtung (waermetauscheradsorber)
FR2545585A1 (fr) * 1983-05-05 1984-11-09 Laurent Francois Perfectionnements a des generateurs de chaleur fonctionnant au gaz et susceptibles d'etre raccordes a une aspiration controlee
EP0139105A1 (fr) * 1983-07-20 1985-05-02 Columbia Gas System Service Corporation Appareil pour la combustion de gaz combustible
GB2180058A (en) * 1985-08-29 1987-03-18 Econosto Nv Boiler
NL8600248A (nl) * 1986-01-31 1987-08-17 Atag Bv Apparatenfab Verwarmingsinrichting omvattende een brander van het type waaraan een nagenoeg stoechiometrisch brandstof/luchtmengsel wordt toegevoerd.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337517A1 (de) * 1973-07-24 1975-02-13 Junkers & Co Gasbeheizter wassererhitzer
FR2417063A1 (fr) * 1978-02-14 1979-09-07 Motan Gmbh Dispositif de chauffage a bruleur
DE3041265A1 (de) * 1980-11-03 1982-09-30 Wilhelm 6902 Sandhausen Krämer Oel- und gasheizkessel mit integrierter abgas- und adsorptionswaermegewinnungsvorrichtung (waermetauscheradsorber)
FR2545585A1 (fr) * 1983-05-05 1984-11-09 Laurent Francois Perfectionnements a des generateurs de chaleur fonctionnant au gaz et susceptibles d'etre raccordes a une aspiration controlee
EP0139105A1 (fr) * 1983-07-20 1985-05-02 Columbia Gas System Service Corporation Appareil pour la combustion de gaz combustible
GB2180058A (en) * 1985-08-29 1987-03-18 Econosto Nv Boiler
NL8600248A (nl) * 1986-01-31 1987-08-17 Atag Bv Apparatenfab Verwarmingsinrichting omvattende een brander van het type waaraan een nagenoeg stoechiometrisch brandstof/luchtmengsel wordt toegevoerd.

Also Published As

Publication number Publication date
NL8600248A (nl) 1987-08-17

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Inventor name: HEZEMANS, RONALD HUBERTUS THEODORUS MARIA