(19)
(11)EP 4 030 100 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
14.09.2022 Bulletin 2022/37

(43)Date of publication A2:
20.07.2022 Bulletin 2022/29

(21)Application number: 21215773.9

(22)Date of filing:  17.12.2021
(51)International Patent Classification (IPC): 
F23C 7/06(2006.01)
F23D 14/10(2006.01)
F23D 14/66(2006.01)
F23L 15/02(2006.01)
F23C 9/06(2006.01)
F23D 14/64(2006.01)
F23D 14/70(2006.01)
(52)Cooperative Patent Classification (CPC):
F23C 7/06; F23C 9/06; F23L 15/02; F23D 14/105; F23D 14/64; F23D 14/66; F23D 14/70; Y02E 20/34; F23C 2900/06041
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30)Priority: 21.12.2020 US 202063128551 P
14.04.2021 US 202117230139

(71)Applicant: Fives North American Combustion, Inc.
Cleveland, OH 44105 (US)

(72)Inventors:
  • Robertson, Thomas F.
    Medina (US)
  • Hannum, Mark
    Husdon (US)

(74)Representative: Lawrie IP Limited 
310 St. Vincent Street
Glasgow G2 5RG
Glasgow G2 5RG (GB)

  


(54)REGENERATIVE BURNER SYSTEM AND METHOD OF USE


(57) A method heats a furnace process chamber with the combustion of fuel gas. The method heats the process chamber in a preheat mode when the temperature of the process chamber is below the autoignition temperature of the fuel gas. The preheat mode forms preheated combustion air by directing the combustion air through a regenerative bed. A stream of the preheated combustion air is directed into the process chamber in a condition unmixed with fuel gas. The preheat mode also forms a fuel rich mixture of the fuel gas and unheated combustion air. The fuel rich mixture is directed into the process chamber adjacent to the stream of preheated combustion air.







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