EP 4075075 A1 20221019 - SINGLE-BOILER-SHEET SERIES CAST ALUMINUM-SILICON WATER HEATER COUPLED TO PRE-MIXING WATER-COOLING COMBUSTOR
Title (en)
SINGLE-BOILER-SHEET SERIES CAST ALUMINUM-SILICON WATER HEATER COUPLED TO PRE-MIXING WATER-COOLING COMBUSTOR
Title (de)
EIN-KESSEL-BLECH-WASSERERHITZER AUS ALUMINIUM-SILIZIUM-GUSS IN VERBINDUNG MIT EINEM BRENNER MIT VORMISCHUNG UND WASSERKÜHLUNG
Title (fr)
CHAUFFE-EAU EN ALUMINIUM-SILICIUM COULÉ EN SÉRIE DE TÔLES DE CHAUDIÈRE UNIQUES, ACCOUPLÉ À UNE CHAMBRE DE COMBUSTION À REFROIDISSEMENT PAR EAU ET À PRÉ-MÉLANGE
Publication
Application
Priority
- CN 202010688233 A 20200716
- CN 2021105092 W 20210708
Abstract (en)
A premixed water-cooling combustion coupled cast-aluminum-silicon water boiler with series-connected boiler sections. A main structure is formed by axisymmetric series-connected boiler sections instead of three different boiler sections, including an upper radiation zone composed of a water-cooling combustion head, a front cover plate and a rear cover plate, a middle convection zone and condensation zone, and a lower special-shaped smoke box. A center of a combustion chamber of each boiler section is provided with a water-cooling combustion head including an annular water channel, two parallel ascending water channels or water channels respectively provided at two sides of an upper portion of a furnace. A flue gas-air mixture is ignited to burn after passing through anti-backfire ribs and flame-stabilizing fins. The flue gas is allowed to flow downward through radiation zone, the convection zone and a pin-fin heating surface of the condensation zone, and is collected in the special-shaped smoke box. The flue gas is allowed to turn to be upwardly discharged. The boiler is provided with a header inside rather than connected to an external water channel, so as to simplify sealing, improve working efficiency, and make a boiler structure more compact. The water boiler integrates water cooling and heat exchange, reducing a temperature of the combustion area, restraining a generation of nitrogen oxides, and reducing nitrogen oxides.
IPC 8 full level
F24H 8/00 (2022.01); F24H 9/00 (2022.01); F24H 9/02 (2006.01); F24H 9/18 (2022.01)
CPC (source: CN EP)
F24H 1/32 (2013.01 - EP); F24H 8/00 (2013.01 - CN EP); F24H 9/0005 (2013.01 - CN); F24H 9/0015 (2013.01 - EP); F24H 9/0026 (2013.01 - EP); F24H 9/02 (2013.01 - CN); F24H 9/1836 (2013.01 - CN EP)
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
DOCDB simple family (publication)
EP 4075075 A1 20221019; EP 4075075 A4 20240124; CN 111829179 A 20201027; WO 2022012398 A1 20220120
DOCDB simple family (application)
EP 21843100 A 20210708; CN 202010688233 A 20200716; CN 2021105092 W 20210708