EP0085464A1 - Brenner - Google Patents

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Publication number
EP0085464A1
EP0085464A1 EP83200133A EP83200133A EP0085464A1 EP 0085464 A1 EP0085464 A1 EP 0085464A1 EP 83200133 A EP83200133 A EP 83200133A EP 83200133 A EP83200133 A EP 83200133A EP 0085464 A1 EP0085464 A1 EP 0085464A1
Authority
EP
European Patent Office
Prior art keywords
burner
combustion
combustion chamber
mixing
discharge
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
EP83200133A
Other languages
English (en)
French (fr)
Other versions
EP0085464B1 (de
Inventor
Paulus Theodorus Jozef Overman
Dirk Frederik Heeneman
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.)
VEG-GASINSTITUUT NV
Veg Gasinstituut NV
Original Assignee
VEG-GASINSTITUUT NV
Veg Gasinstituut NV
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 VEG-GASINSTITUUT NV, Veg Gasinstituut NV filed Critical VEG-GASINSTITUUT NV
Publication of EP0085464A1 publication Critical patent/EP0085464A1/de
Application granted granted Critical
Publication of EP0085464B1 publication Critical patent/EP0085464B1/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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber

Definitions

  • the invention relates to a burner, in particular a gas burner for an apparatus, for example a central heating installation, comprising a mixing zone or mixing tube and at least one injection nozzle which opens into the mixing zone at the one end thereof for supplying pressurized fuel, in particular a gaseous fuel, indrawing at least primary combustion air from the atmosphere and a discharge for combustion gases.
  • a burner is generally known and is called an atmospheric burner, because all of combustion air is supplied under atmospheric pressure.
  • the known burner In the known burner a complete combustion of fuel is guaranteed more or less by a high flame-length and a high excess of air by which much space is necessary and the apparatus efficiency is relatively low. Moreover, said known burner is constructed for one gas quality having narrow tolerances, whereas the pressure under which said gas is supplied, may not vary substantially.
  • the invention has the object to provide a burner of mentioned type not having said disadvantages.
  • the mixing zone or mixing tube is at its other end in communication with a substantially closed combustion chamber which is in communication with the discharge for the combustion gases, the walls of said combustion chamber consisting of a refractory material having a relatively poor heat conduction.
  • the wall temperature of the combustion chamber will be approximately as high as that of the combustion gases, by which the combustion gases do not cool in the combustion chamber and the length of the flame becomes small and it needs to be operated with only a very low excess of air. Moreover, any dirt particles in the combustion air are completely burnt by the high temperature, so that fouling of the burner cannot occur.
  • the combustion air may be metered e.g. by a control of the draught or the resistance such that the excess of air is very low without the occurrence of an incomplete combustion, so that the apparatus efficiency is relatively high.
  • Further gases of widely divergent qualities may be used and gases supplied under different pressures without the necessity of a modification of the burner and without endangering complete combustion of said gases. Moreover, in operation relatively little noise is produced.
  • At least one aperture is provided for supplying secondary combustion air from the atmosphere.
  • the heat exchanger is lined by the same material as that of the walls of the combustion chamber.
  • the heat exchanger according to the invention is lined by the same material as that of the walls of the combustion chamber, preferably, said lining being obtained by accommodating the heat exchanger in a cavity formed in a block of refractory material having a relatively poor heat conduction, in which also at least the combustion chamber is formed, by which a very simple burner unit having low manufacturing costs is obtained.
  • said refractory material having a relatively poor heat conduction is a ceramic material.
  • the burner comprises a block 1 of a ceramic material.
  • a mixing tube 2 and connected therewith a combustion chamber 3 are formed, said chamber being in communication with the cavity 5 through passage 4, and the mixing tube 2 and the cavity 5 being open at one side of the block 1 but covered by a covering plate 6.
  • an injection nozzle 7 is fixed, which can be connected to a source of pressurized gas.
  • a passage for supplying primary combustion air from the atmosphere is formed, said air being drawn in by injecting gas through the injection nozzle 7, after which said air is mixed with the gas in the mixing tube 2
  • an aperture 9 is provided for drawing in secrety combustion air from the atmosphere.
  • the gas is combusted completely, the intermediary air being supplied in metered quantities such that the excess of air is only very low.
  • a heat exchanger 10 indicated only schematically is provided, through which the hot combustion gases coming from the combustion chamber 3 flow. Because the heat exchanger 10 is entirely enclosed by the walls of the cavity 5, said walls being of a ceramic material, i.e. a refractory material having a relatively low heat conduction, the heat exchanger does not need to have an expensive water cooled or air cooled wall.
  • the combustion gases leave the heat exchanger through the apertures 11 in the covering plate 6 and then flow into the discharge 12 in which a fan 13 may be provided for controlling the draught.
  • the burner consists of block 14 of ceramic material.
  • a mixing zone 15 and connected therewith a combustion chamber 16 are formed, said chamber being in communication with the cavity 18 through the passage 17, the mixing zone 15 and the cavity 18 being open at one side of the block 14, but are covered by a covering plate 19.
  • an injection nozzle 20 is fixed which can be connected to a source of pressurized gas.
  • a passage for supplying all combustion air from the atmosphere is formed, said air being mixed with the gas in the mixing zone 15.
  • a heat exchanger 22 is provided in the same way as in the embodiment according to Fig. 1, the combustion gases flowing through the apertures 23 into the discharge 24, in which discharge a fan 25 may be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP19830200133 1982-01-26 1983-01-25 Brenner Expired EP0085464B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8200272 1982-01-26
NL8200272A NL8200272A (nl) 1982-01-26 1982-01-26 Brander.

Publications (2)

Publication Number Publication Date
EP0085464A1 true EP0085464A1 (de) 1983-08-10
EP0085464B1 EP0085464B1 (de) 1987-04-15

Family

ID=19839136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830200133 Expired EP0085464B1 (de) 1982-01-26 1983-01-25 Brenner

Country Status (3)

Country Link
EP (1) EP0085464B1 (de)
DE (1) DE3370985D1 (de)
NL (1) NL8200272A (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE396309A (de) *
GB602919A (en) * 1945-12-19 1948-06-04 Furnace Engineers Inc Improvements in or relating to gas burners
EP0021035A1 (de) * 1979-06-29 1981-01-07 Ruhrgas Aktiengesellschaft Verfahren zum Betrieb von Vormischbrennern und Brenner zur Durchführung des Verfahrens
NL8000460A (nl) * 1980-01-24 1981-08-17 Laurentius Cornelis Johannes L Verwarmingsinrichting.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE396309A (de) *
GB602919A (en) * 1945-12-19 1948-06-04 Furnace Engineers Inc Improvements in or relating to gas burners
EP0021035A1 (de) * 1979-06-29 1981-01-07 Ruhrgas Aktiengesellschaft Verfahren zum Betrieb von Vormischbrennern und Brenner zur Durchführung des Verfahrens
NL8000460A (nl) * 1980-01-24 1981-08-17 Laurentius Cornelis Johannes L Verwarmingsinrichting.

Also Published As

Publication number Publication date
DE3370985D1 (en) 1987-05-21
NL8200272A (nl) 1983-08-16
EP0085464B1 (de) 1987-04-15

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