EP 4317777 A1 20240207 - RETROFIT KIT ASSEMBLY
Title (en)
RETROFIT KIT ASSEMBLY
Title (de)
NACHRÜSTKITANORDNUNG
Title (fr)
ENSEMBLE KIT DE CONVERSION
Publication
Application
Priority
EP 22188115 A 20220801
Abstract (en)
The invention relates to a Retrofit kit assembly (1) for converting a gaseous hydrocarbon combustion appliance (2), in particular a gas boiler, and more particularly for a condensing gas boiler, to a combustion appliance for combustion of fuel gas comprising more than 20 mol%, in particular more than 30 mol%, hydrogen wherein the retrofit kit (1) further comprises a burner (6) configured for combustion of more than 20 mol%, in particular more than 30 mol%, of hydrogen and a data carrier (21) comprising information which, when the data carrier is read out cause a computer or a control unit to carry out a method (100) for controlling the operation of the combustion appliance (2), in particular a gas boiler, wherein the burner (6) is configured to be operated between a minimum load and a maximum load, wherein the method comprises the steps:• during a start-up phase: supplying combustible gas, in particular premixed gas, having a first lambda-value to the burner surface, wherein the first lambda-value is at least 1,5, in particular 1,7 in particular at least 1.8, and igniting the supplied gas having the first lambda-value using an ignition source,• during an operation phase after the gas has been ignited: supplying gas having a second lambda-value to the burner surface, wherein the first lambda-value is larger than the second lambda-value.
IPC 8 full level
F23D 14/02 (2006.01); F23D 99/00 (2010.01); F23N 5/00 (2006.01)
CPC (source: EP)
F23D 14/02 (2013.01); F23D 99/00 (2013.01); F23N 5/003 (2013.01); F23C 2900/9901 (2013.01); F23D 2203/1012 (2013.01); F23N 2227/02 (2020.01)
Citation (applicant)
EP 3524884 A1 20190814 - RIELLO SPA [IT]
Citation (search report)
- [XI] WO 2021078949 A1 20210429 - BEKAERT COMBUSTION TECH BV [NL]
- [XA] EP 4027059 A1 20220713 - CROSSTOWN POWER GMBH [CH]
- [XA] WO 2022006444 A1 20220106 - RUIZ ROBERTO [US]
Designated contracting state (EPC)
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 state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22188115 A 20220801