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1. (WO2019002908) COMBUSTION HEAD WITH LOW EMISSION OF NOX FOR BURNERS AND BURNER COMPRISING SUCH A HEAD
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Pub. No.: WO/2019/002908 International Application No.: PCT/IB2017/053797
Publication Date: 03.01.2019 International Filing Date: 26.06.2017
Chapter 2 Demand Filed: 20.07.2018
IPC:
F23D 14/22 (2006.01) ,F23D 14/26 (2006.01) ,F23D 14/70 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
D
BURNERS
14
Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
20
Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
22
with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
D
BURNERS
14
Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
26
with provision for a retention flame
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
D
BURNERS
14
Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
46
Details
70
Baffles or like flow-disturbing devices
Applicants:
C.I.B. UNIGAS S.P.A. [IT/IT]; Via Galvani 9 Campodarsego 35011 PADOVA, IT
Inventors:
PANCOLINI, Riccardo; IT
Agent:
ANSELMI, Davide; IT
Priority Data:
Title (EN) COMBUSTION HEAD WITH LOW EMISSION OF NOX FOR BURNERS AND BURNER COMPRISING SUCH A HEAD
(FR) TÊTE DE COMBUSTION À FAIBLE ÉMISSION DE NOX POUR BRÛLEURS ET BRÛLEUR COMPRENANT UNE TELLE TÊTE
Abstract:
(EN) A combustion head (1) for burners, comprising an outer tubular body (2) for channelling combustion air, an inner tubular body (3) for channelling a fuel and a diffuser (11) extending between the inner tubular body (3) and the outer tubular body (2), said diffuser being disc-shaped and defining a slot (12) for passage of the air between said diffuser (11 ) and the outer tubular body (2). The outer tubular body (2) has a lip 15 converging towards the main axis (4) at the emission portion (5) so as to define a narrowing of said slot (12) for passage of the combustion air, so that for predefined flow rates of fuel and combustion air, the ratio of the velocity of the exiting fuel to the velocity of the combustion air exiting from the passage slot (12) ranges between 1.8 and 3.
(FR) L'invention concerne une tête de combustion (1) pour brûleurs, comprenant un corps tubulaire externe (2) pour canaliser l'air de combustion, un corps tubulaire interne (3) pour canaliser un combustible et un diffuseur (11) s'étendant entre le corps tubulaire interne (3) et le corps tubulaire externe (2), ledit diffuseur étant en forme de disque et définissant une fente (12) pour le passage de l'air entre ledit diffuseur (11) et le corps tubulaire externe (2). Le corps tubulaire externe (2) a une lèvre 15 convergeant vers l'axe principal (4) au niveau de la partie d'émission (5) de façon à définir un rétrécissement de ladite fente (12) pour le passage de l'air de combustion, de telle sorte que pour des débits prédéfinis de carburant et d'air de combustion, le rapport de la vitesse du carburant sortant à la vitesse de l'air de combustion sortant de la fente de passage (12) soit compris entre 1,8 et 3.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Italian (IT)