US 12,372,233 B2
Regulation method of a premix gas burner and control and regulation device for carrying out the method
Flavio Chiavetti, Fabriano (IT); and Giacomo Silvestri, Otricoli (IT)
Appl. No. 18/556,925
Filed by ARISTON S.P.A., Fabriano (IT)
PCT Filed Apr. 1, 2022, PCT No. PCT/IB2022/053076
§ 371(c)(1), (2) Date Oct. 24, 2023,
PCT Pub. No. WO2022/234359, PCT Pub. Date Nov. 10, 2022.
Claims priority of application No. 102021000011423 (IT), filed on May 5, 2021.
Prior Publication US 2024/0200773 A1, Jun. 20, 2024
Int. Cl. F23D 14/02 (2006.01); F23D 14/60 (2006.01)
CPC F23D 14/60 (2013.01) [F23D 14/02 (2013.01); F23D 2203/007 (2013.01); F23D 2207/00 (2013.01); F23D 2208/10 (2013.01)] 11 Claims
OG exemplary drawing
 
1. Regulation method of a premixed gas burner fed with hydrogen H2 that provides the steps of:
a) starting a fan at a predetermined speed Vp to create an aeriform flow Fa;
b) adding a fuel gas flow Fg, mainly and/or essentially composed of hydrogen H2, to said aeriform flow Fa so as to obtain an air and fuel gas mixture Mag with an excess air factor λ≥2.5;
c) igniting said air and fuel gas mixture Mag,
d) maintaining the combustion of said air and fuel gas mixture Mag for a stabilisation time ts≥5 seconds,
e) progressively reducing the excess air factor λ up to a value λtarget of 1.3<λ<2.5.