EP0136928A1 - Brenner mit einer Gasvormischung und ein mit diesem Brenner ausgestatteter Heizkessel - Google Patents

Brenner mit einer Gasvormischung und ein mit diesem Brenner ausgestatteter Heizkessel Download PDF

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Publication number
EP0136928A1
EP0136928A1 EP84401550A EP84401550A EP0136928A1 EP 0136928 A1 EP0136928 A1 EP 0136928A1 EP 84401550 A EP84401550 A EP 84401550A EP 84401550 A EP84401550 A EP 84401550A EP 0136928 A1 EP0136928 A1 EP 0136928A1
Authority
EP
European Patent Office
Prior art keywords
burner
gas
main
ignition
fan
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
EP84401550A
Other languages
English (en)
French (fr)
Other versions
EP0136928B1 (de
Inventor
Alain Perillaud
Jean-Pierre Raynal
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.)
COMPAGNIE INTERNATIONALE DU CHAUFFAGE
Original Assignee
INTERNATIONALE DU CHAUFFAGE Cie
Societe Generale de Fonderie SA
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 INTERNATIONALE DU CHAUFFAGE Cie, Societe Generale de Fonderie SA filed Critical INTERNATIONALE DU CHAUFFAGE Cie
Publication of EP0136928A1 publication Critical patent/EP0136928A1/de
Application granted granted Critical
Publication of EP0136928B1 publication Critical patent/EP0136928B1/de
Expired 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
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F23Q9/02—Pilot flame igniters without interlock with main fuel supply
    • F23Q9/04—Pilot flame igniters without interlock with main fuel supply for upright burners, e.g. gas-cooker burners
    • F23Q9/045—Structurally associated with a main-burner

Definitions

  • the present invention relates to a gas premix burner for a boiler, in particular for instantaneous preparation of domestic hot water, as well as a boiler equipped with such a burner with upstream fan.
  • the main burner is generally ignited either by an auxiliary so-called ignition burner, or directly by electrical means.
  • the ignition burners are of different types, for example of the permanent type called pilot light, semi-permanent or semi-permanent alternating with limitation on the ignition time.
  • the ignition burner When the ignition burner is of the semi-permanent alternating type, or when the ignition is carried out by electrical means, it is necessary for safety reasons to pre-sweep the combustion circuit before each ignition of the main burner.
  • the pre-purge time for example 15 seconds, does not allow an immediate response to the user's demand for domestic water and the latter's needs can therefore only be satisfied with a certain delay.
  • the invention aims in particular to remedy the drawbacks of the various devices set out, in a gas premix burner for a boiler for instantaneous preparation of domestic hot water, by using a permanent operation ignition burner provided with a supply of oxidant which varies according whether the fan is on or off.
  • the invention relates to a gas premix burner for a sealed hearth boiler intended for the instantaneous preparation of domestic hot water, this burner comprising, in the hearth, a main burner with gas premix, supplied with gas by a main pipe. gas under the control of a solenoid valve block and pressurized air by a fan, and an ignition burner supplied with gas by a bypass of the main line.
  • the ignition burner is supplied with oxidant by a bypass of a sealed connection pipe of the fan with the main burner.
  • the ignition burner behaves like an atmospheric pilot light when the main burner stops and as a total air burner during the operation of the main burner.
  • the oxidizer bypass can advantageously be constituted by a tube of relatively large diameter, by example of at least 18 mm, to allow a sufficient supply of atmospheric air when the main burner stops, tube whose mouth is arranged as a dynamic and adjustable outlet in the tight connection piping of the fan with the burner main.
  • the ignition burner 10 illustrated in FIG. 1 has a gas injector 11 housed at the inlet of a venturi tube 12 permitting the suction of the main atmospheric air of combustion API; combustion is completed by means of atmospheric secondary air AS1 taken from the hearth.
  • FIG. 2 shows an ignition burner 13 with total air; the gas injector 14 opens into an air inlet tube 15, this air being pressurized by means of a fan V, the flow rate of which is adjusted so as to produce in a mixing tube 16 a mixture with a slight excess of air.
  • the atmospheric pilot light 10 of FIG. 1 cannot function satisfactorily in a gas-fired air boiler and gas premix when the main burner is operating, while the total air ignition burner 13 of FIG. 2 is not not economically adaptable to such a boiler.
  • the gas boiler 20 of FIG. 3 comprises in a hearth sealed 21 a main burner 22, an ignition burner 23, a smoke-water exchanger 24 and a pipe 25 for discharging the fumes; the exchanger 24 is constituted for example by a tube wound in a spiral and intended for the preparation of sanitary water; it can also be arranged to allow heating of central heating water.
  • the main burner 22 is supplied with gas by a main gas pipe 26, under the control of a solenoid valve 27, and with pressurized air by a fan 28.
  • the latter is connected to the burner 22 by a connecting pipe. watertight 29.
  • the gas pipe 26 opens either at 26a in a pipe or a suction outlet 30 of the fan (fig. 3), or at 26b in the pipe 29 (fig. 4); the premix is carried out in the first case in the fan itself and in the second case downstream of it.
  • the ignition burner 23 according to the invention has a gas injector 31 disposed at the inlet of a venturi tube 32 and supplied with gas by a bypass 33 of the main gas pipe 26 under the control of the solenoid valve block 27.
  • the burner 23 is supplied with a gas premix (fig. 3) or with air (fig. 4) by a branch 34 of the sealed connection pipe 29; in the embodiment of Figure 4, the bypass 34 is located upstream of point 26b.
  • the branch 34 is linked to the venturi tube 32.
  • the oxidizer derivation 34 is arranged in lateral engagement or in Pitot tube in the piping 29 so as to benefit in the latter case of a dynamic effect and it has for example a tubular end piece 35 capable of rotation about its axis 36 and provided with an orifice 37 cut into a whistle; in this way, the rotation of the nozzle 35 about its axis modifies, thanks to the aforementioned dynamic effect, the flow of oxidant towards the ignition burner 23 and makes it possible to easily adjust in situ the flow of oxidant and the coupling. of flame.
  • Figures 5 and 6 show the configuration of the ignition burner flame at stop and respectively during operation of the main burner.
  • the relatively high flame F5 is obtained by means of the supply of primary air AP5 passing through the bypass 34 and of secondary air AS5 coming from the piping 30 via the fan, the main burner and the hearth.
  • the reduced height flame F6 is obtained by means of the supply of total air AT6 or of air-gas premix AG6; the reduction in flame height due to the overpressure of the air or the premix does not alter the temperature of the ignition flame.
  • the gas premix burner described operates in the following manner: when the solenoid valve block 27 authorizes it, the ignition burner 23 is permanently lit and, when the main burner 22 is stopped, receives a low flow of gas from the bypass 33; the burner 23 receives on the other hand the necessary primary air flow AP5 coming from the piping or the inlet 30 inlet of the fan while at rest and passing by the bypass tube 34 then by the venturi tube 32. L the secondary air AS5 is supplied by the pipe 30, the fan 28, the pipe 29, the main burner 22 and the hearth 21.
  • the orifice 37 of the bypass tube 34 dynamically draws part of the air with a flow rate and a pressure determined by the rotational position of the tubular end or sleeve 35 and by its relatively large diameter, for example greater than 18 mm . It goes without saying that one could provide another means of adjustment or adjustable concealment of the section of the branch 34.
  • the boiler object of the invention can be of the mixed type, that is to say have several exchangers intended respectively for preparing domestic hot water and for heating central heating water.

Landscapes

  • 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)
EP19840401550 1983-07-25 1984-07-23 Brenner mit einer Gasvormischung und ein mit diesem Brenner ausgestatteter Heizkessel Expired EP0136928B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8312280A FR2549938B1 (fr) 1983-07-25 1983-07-25 Bruleur a premelange gazeux et chaudiere equipee d'un tel bruleur
FR8312280 1983-07-25

Publications (2)

Publication Number Publication Date
EP0136928A1 true EP0136928A1 (de) 1985-04-10
EP0136928B1 EP0136928B1 (de) 1986-12-30

Family

ID=9291096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840401550 Expired EP0136928B1 (de) 1983-07-25 1984-07-23 Brenner mit einer Gasvormischung und ein mit diesem Brenner ausgestatteter Heizkessel

Country Status (3)

Country Link
EP (1) EP0136928B1 (de)
DE (1) DE3461860D1 (de)
FR (1) FR2549938B1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861261A (en) * 1986-02-05 1989-08-29 Kurt Krieger Method of operating a gas-infrared radiator, and the gas-infrared radiator
EP0532165A2 (de) * 1991-09-09 1993-03-17 Aos Holding Company Druckluftabdichtung für Verbrennungskammer
US5344310A (en) * 1991-11-22 1994-09-06 Aichelin Gmbh Burner for an industrial furnace
US5460515A (en) * 1991-11-22 1995-10-24 Aichelin Gmbh Burner for an industrial furnace
US5513981A (en) * 1991-11-22 1996-05-07 Aichelin Gmbh Burner with variable volume combination chamber
US5998605A (en) * 1994-07-07 1999-12-07 Glaxo Wellcome Inc. Antiviral benzimidazole nucleoside analogues and method for their preparation
US20110200707A1 (en) * 2008-10-20 2011-08-18 Dsm Ip Assets B.V. Fish flavour
CN103388902A (zh) * 2012-05-11 2013-11-13 四川汇利实业有限公司 用于医院后勤部门的多功能加热炉
CN105352171A (zh) * 2015-11-18 2016-02-24 常杰 便携式组合热水器
EP3845804A1 (de) * 2019-12-30 2021-07-07 Pinnacle Climate Technologies Gasleitung für gasgerät

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105805748A (zh) * 2016-04-08 2016-07-27 重庆理工大学 一种燃气喷嘴装置及其控制方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE366780C (de) * 1920-06-15 1923-01-11 Franz Ungemach Gas-Doppelsparbrenner fuer Gaskocher
US2494243A (en) * 1944-07-31 1950-01-10 Louis D Houlis Pressure ribbon-type gas burner
FR2028635A5 (de) * 1969-01-09 1970-10-09 Saunier Duval
DE2752663A1 (de) * 1977-11-25 1979-05-31 Haller Meurer Werke Ag Gasheizgeraet
DE2905415A1 (de) * 1979-02-10 1980-08-14 Vaillant Joh Gmbh & Co Verfahren zum betreiben eines diffusionszuendbrenners
DE3112073A1 (de) * 1981-03-27 1982-11-11 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Vormischzuendbrenner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE366780C (de) * 1920-06-15 1923-01-11 Franz Ungemach Gas-Doppelsparbrenner fuer Gaskocher
US2494243A (en) * 1944-07-31 1950-01-10 Louis D Houlis Pressure ribbon-type gas burner
FR2028635A5 (de) * 1969-01-09 1970-10-09 Saunier Duval
DE2752663A1 (de) * 1977-11-25 1979-05-31 Haller Meurer Werke Ag Gasheizgeraet
DE2905415A1 (de) * 1979-02-10 1980-08-14 Vaillant Joh Gmbh & Co Verfahren zum betreiben eines diffusionszuendbrenners
DE3112073A1 (de) * 1981-03-27 1982-11-11 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Vormischzuendbrenner

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861261A (en) * 1986-02-05 1989-08-29 Kurt Krieger Method of operating a gas-infrared radiator, and the gas-infrared radiator
EP0256063B1 (de) * 1986-02-05 1990-09-12 KRIEGER, Kurt Verfahren zum betreiben eines gas-infrarotstrahlers und gas-infrarotstrahler
USRE34541E (en) * 1986-02-05 1994-02-15 Kreiger; Kurt Method of operating a gas-infrared radiator, and the gas-infrared radiator
EP0532165A2 (de) * 1991-09-09 1993-03-17 Aos Holding Company Druckluftabdichtung für Verbrennungskammer
EP0532165A3 (en) * 1991-09-09 1993-07-14 Aos Holding Company Pressurized air seal for combustion chamber
US5460515A (en) * 1991-11-22 1995-10-24 Aichelin Gmbh Burner for an industrial furnace
US5344310A (en) * 1991-11-22 1994-09-06 Aichelin Gmbh Burner for an industrial furnace
US5513981A (en) * 1991-11-22 1996-05-07 Aichelin Gmbh Burner with variable volume combination chamber
US5998605A (en) * 1994-07-07 1999-12-07 Glaxo Wellcome Inc. Antiviral benzimidazole nucleoside analogues and method for their preparation
US20110200707A1 (en) * 2008-10-20 2011-08-18 Dsm Ip Assets B.V. Fish flavour
US8652548B2 (en) * 2008-10-20 2014-02-18 Dsm Ip Assests B.V. Fish flavour
US8815314B2 (en) 2008-10-20 2014-08-26 Dsm Ip Assets B.V. Fish flavour
CN103388902A (zh) * 2012-05-11 2013-11-13 四川汇利实业有限公司 用于医院后勤部门的多功能加热炉
CN105352171A (zh) * 2015-11-18 2016-02-24 常杰 便携式组合热水器
EP3845804A1 (de) * 2019-12-30 2021-07-07 Pinnacle Climate Technologies Gasleitung für gasgerät

Also Published As

Publication number Publication date
EP0136928B1 (de) 1986-12-30
FR2549938B1 (fr) 1987-08-07
FR2549938A1 (fr) 1985-02-01
DE3461860D1 (en) 1987-02-05

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