EP0151214A2 - Brûleur pour combustibles liquides du type à vaporisation - Google Patents

Brûleur pour combustibles liquides du type à vaporisation Download PDF

Info

Publication number
EP0151214A2
EP0151214A2 EP84110376A EP84110376A EP0151214A2 EP 0151214 A2 EP0151214 A2 EP 0151214A2 EP 84110376 A EP84110376 A EP 84110376A EP 84110376 A EP84110376 A EP 84110376A EP 0151214 A2 EP0151214 A2 EP 0151214A2
Authority
EP
European Patent Office
Prior art keywords
evaporator
evaporator pot
recesses
burner
pot
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
EP84110376A
Other languages
German (de)
English (en)
Other versions
EP0151214A3 (en
EP0151214B1 (fr
Inventor
Hans Günter Stern
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.)
Deutsche Babcock Werke AG
Original Assignee
Deutsche Babcock Werke AG
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 Deutsche Babcock Werke AG filed Critical Deutsche Babcock Werke AG
Priority to AT84110376T priority Critical patent/ATE27351T1/de
Publication of EP0151214A2 publication Critical patent/EP0151214A2/fr
Publication of EP0151214A3 publication Critical patent/EP0151214A3/de
Application granted granted Critical
Publication of EP0151214B1 publication Critical patent/EP0151214B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details
    • F23D11/44—Preheating devices; Vaporising devices
    • F23D11/441—Vaporising devices incorporated with burners
    • F23D11/443—Vaporising devices incorporated with burners heated by the main burner flame
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/04—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying action being obtained by centrifugal action
    • F23D11/06—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying action being obtained by centrifugal action using a horizontal shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/005—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space with combinations of different spraying or vaporising means

Definitions

  • the invention relates to a burner for liquid fuels of the evaporator type with the features of the preamble of claim 1.
  • Such a burner is known from DE-OS 26 49 669. It has proven itself on the whole and, with a sufficient excess of air, provides a good mixture of fuel and combustion air, which is reflected in a blue flame. However, a high excess of air is not permissible for continuous operation, since the C0 2 value and thus the combustion efficiency does not meet the requirements and the excess air disturbs the thermal balance so that the dreaded condensation occurs on the rear wall.
  • the invention has for its object to improve the generic burner in such a way that the oil vapor is mixed well with the fresh air and the combustion gas without affecting the injector effect. This object is achieved by the features of claim 1. Advantageous embodiments of the invention are characterized by the subclaims.
  • a part of the oil vapor produced in the evaporator pot is introduced into the air stream in fine jets through the bore or slots before it emerges from the outlet opening.
  • the media penetrate each other at an angle of incidence of approximately 90 ° . This angle of incidence, reinforced by the centrifugal force at the outlet of the evaporator pot, brings about an almost complete mixing of the oil vapor with the fresh air and the combustion gas.
  • the drawing shows the longitudinal section through a burner according to the invention.
  • the burner has a housing 1, in which a cylindrical combustion chamber 2 is arranged, the ankihrem rear end closed by an end wall and limited by a flame tube 16.
  • An air duct 3 is provided between the housing 1 and the combustion chamber 2 and is supplied with combustion air via an air connection (not shown) at the rear end of the housing 1.
  • a rotationally symmetrical evaporator pot 4 is arranged within the combustion chamber 2 with a radial pitch.
  • the evaporator pot 4 has a closed base 5, which is followed by a conically tapered jacket 6.
  • the bottom 5 of the evaporator pot 4 is opposite an outlet opening 7 which is arranged at an axial distance from the end wall of the combustion chamber 2.
  • Inside the evaporator pot 4 opens into a fuel supply line, not shown.
  • the evaporator pot 4 is connected to a shaft 8 which is engaged by a drive, not shown, via which the evaporator pot 4 is set in rotation.
  • a baffle plate 9 is arranged on the jacket 6 of the evaporator pot 4.
  • a plurality of air inlet pipes 10 are inserted, which connect the air duct 3 to a deflection chamber 11.
  • the deflection chamber 11 has the shape of an annular neck injector and has an annular outlet slot 12.
  • An injector channel 13 is formed between the deflection chamber 11 and the jacket 6 of the evaporator pot.
  • a flue gas duct 17 is provided between the flame tube 16 of the combustion chamber 2 and the wall of the housing 1 or the air duct 3. The flue gas duct 17 is arranged so that flue gas can be drawn in through the injector.
  • the jacket 6 of the evaporator pot 4 which are formed, for example, by bores 14 or slots.
  • the holes 14 are distributed in several rows over the circumference of the evaporator pot 4 and are provided in an area which is identified by the dash-dotted lines 15. This area lies between the outlet opening 7 of the evaporator pot and the baffle plate 9, preferably in the part of the injector channel 13 through which there is an axial flow .
  • the emerging oil vapor jets penetrate the medium flowing through the injector channel 13.
  • the diameter of the holes 14 should have a certain value of z. B. do not exceed 2.7 mm, so that no selectively dense oil vapor concentrations and concentrations occur. As shown, three rows of holes, each with twelve holes, are advantageously provided.
  • an area ratio of the outlet cross sections of all the bores 14 to the outlet cross section of the outlet opening 7 of the evaporator pot 4 of 0.2 to 0.3 complied with.
  • a ratio of 0.26 was chosen with a diameter of the outlet opening 7 of 33 mm and the shaft 8 of 10 mm. With a total throughput of 1 kg of heating oil per hour, only 1/20 to 1/10 of the amount of oil flows through the bores 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Spray-Type Burners (AREA)
  • Evaporation-Type Combustion Burners (AREA)
EP84110376A 1983-12-22 1984-08-31 Brûleur pour combustibles liquides du type à vaporisation Expired EP0151214B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84110376T ATE27351T1 (de) 1983-12-22 1984-08-31 Brenner fuer fluessige brennstoffe vom verdampfertyp.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833346431 DE3346431A1 (de) 1983-12-22 1983-12-22 Brenner fuer fluessige brennstoffe vom verdampfertyp
DE3346431 1983-12-22

Publications (3)

Publication Number Publication Date
EP0151214A2 true EP0151214A2 (fr) 1985-08-14
EP0151214A3 EP0151214A3 (en) 1986-02-05
EP0151214B1 EP0151214B1 (fr) 1987-05-20

Family

ID=6217714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110376A Expired EP0151214B1 (fr) 1983-12-22 1984-08-31 Brûleur pour combustibles liquides du type à vaporisation

Country Status (3)

Country Link
EP (1) EP0151214B1 (fr)
AT (1) ATE27351T1 (fr)
DE (2) DE3346431A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0595419A1 (fr) * 1992-10-30 1994-05-04 Shell Internationale Researchmaatschappij B.V. Brûleur à combustible liquide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE60419T1 (de) * 1987-03-13 1991-02-15 Fuellemann Patent Ag Brenner.
US5015173A (en) * 1988-06-09 1991-05-14 Vth Ag Verfahrenstechnik Fur Heizung Burner for the combustion of liquids in the gaseous state

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223136A (en) * 1962-07-13 1965-12-14 Nu Way Corp Fluid fuel combustion apparatus
US3982880A (en) * 1974-04-24 1976-09-28 Dowa Co., Ltd. Liquid fuel burner
DE2649669C2 (de) * 1976-10-29 1984-06-07 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Brenner für flüssige Brennstoffe, insbesondere Öle
DE2809114A1 (de) * 1978-03-03 1979-09-06 Elco Oel & Gasbrenner Brennkopf fuer brennanlagen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0595419A1 (fr) * 1992-10-30 1994-05-04 Shell Internationale Researchmaatschappij B.V. Brûleur à combustible liquide

Also Published As

Publication number Publication date
EP0151214A3 (en) 1986-02-05
EP0151214B1 (fr) 1987-05-20
ATE27351T1 (de) 1987-06-15
DE3463835D1 (en) 1987-06-25
DE3346431A1 (de) 1985-07-04

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