EP 3812656 A1 20210428 - BURNER WITH LINEAR ARRAYS OF FIRE HOLES
Title (en)
BURNER WITH LINEAR ARRAYS OF FIRE HOLES
Title (de)
BRENNER MIT LINEAREN ANORDNUNGEN VON FEUERLÖCHERN
Title (fr)
BRÛLEUR AVEC RANGÉES LINÉAIRES DE TROUS COUPE-FEU
Publication
Application
Previously filed application
201911011434 20191023 CN
Priority
CN 201911011434 A 20191023
Abstract (en)
A burner with linear arrays of fire holes, comprising at least one combustion unit, a secondary air regulation panel and a fuel gas transmission unit; the present invention uses a pattern of 2:1 repeated longitudinal arrangement of flame ports along each combustion unit and modifies the structures of the fuel gas channel and the gas regulation channel, so as to increase the burning area of the fire holes, change the burning power at the surfaces of the fire holes, and reduce the height of the burning flame at the fire holes. By using the primary air inlet openings having elongated shapes and auxiliary air inlet openings having circular shapes on the secondary air regulation panel, the combustion coefficient a1 of the fuel is changed so that the flame is lowered and hence reduces the emissions of NO<sub>x</sub> during thermal reaction. The present invention reduces the height of the burning flame at the fire holes, reduces the temperature of the flame, and obviously reduces the emissions of NO<sub>x</sub> during thermal reaction of the burner. Thus, the burner of the present invention has the advantages of small load, reduced vibration and reduced noise during burning.
IPC 8 full level
F23D 14/04 (2006.01); F23D 14/58 (2006.01); F23L 9/00 (2006.01)
CPC (source: CN EP)
F23D 14/045 (2013.01 - CN EP); F23D 14/46 (2013.01 - CN); F23D 14/583 (2013.01 - EP); F23D 14/586 (2013.01 - CN); F23D 14/64 (2013.01 - CN); F23D 14/70 (2013.01 - CN); F23L 9/00 (2013.01 - EP); F23D 2203/007 (2013.01 - CN); F23D 2900/14041 (2013.01 - EP); F23D 2900/14641 (2013.01 - EP)
Citation (search report)
- [IA] EP 3070404 A1 20160921 - KYUNGDONG NAVIEN CO LTD [KR]
- [IA] CN 102635863 A 20120815 - VAILLANT WUXI HEATING EQUIPMENT CO LTD
- [A] CN 105889916 A 20160824 - RINNAI KK
- [A] JP 2005299986 A 20051027 - RINNAI KK
- [A] US 5649821 A 19970722 - FOGLIANI GIUSEPPE [IT], et al
- [A] CN 109282285 A 20190129 - BOSCH THERMOTECHNOLOGY SHANGHAI CO LTD
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 3812656 A1 20210428; EP 3812656 B1 20230726; CN 110594738 A 20191220
DOCDB simple family (application)
EP 20203440 A 20201022; CN 201911011434 A 20191023