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1. 发明申请

WO2018115955A1 LOW NITROGEN OXIDES EMISSION COMBUSTION HEAD WITH STOP MEANS OF MOUTHPIECE 审中-公开
公开(公告)号：WO2018115955A1
公开(公告)日：2018-06-28
申请号：PCT/IB2017/001602
申请日：2017-12-22
申请人： ECOFLAM BRUCIATORI S.P.A.
发明人： ARTUSO, Elia , CATTANEO, Ruben , MIORIN, Fabrizio , ROSSO, Giuseppe
IPC分类号： F23L9/00 , F23C7/00 , F23C9/06 , F23D11/00 , F23D11/24 , F23D11/38 , F23D11/40
摘要： Object of the present invention is a burner or combustion head (T) for a liquid fuel burner working with primary (Ap) and secondary (As) air, said secondary air (As) being in turn divided in central secondary air (As1) and peripheral secondary air (As2), where the mouthpiece (1) may have a possible downstream over-mouthpiece (2), and where, inside the mouthpiece (1) are: a pre-chamber (4) into which enters combustion air (A) coming from a fan unit (9); a nozzle (3) mounted on a nozzle holder (301) from whose orifice (302) said fuel (C) is nebulized in an outward open cone shape, where to said fuel a vortex motion of angular velocity ω has been transmitted; a flame disk (7) within which the primary air (Ap) of said combustion air (A) is mixed with said liquid fuel (C) upstream of the flame start point (F) while said secondary air (As1) encounters said flame (F) after passing through turbulator slots (705) which produce a vortex motion coaxial to the axis of said mouthpiece (1) and with the same direction of said angular velocity co; air guides (103) driving said peripheral secondary air (As2) to said flame (F). According to the invention, on the outside of the rest (101) of said mouthpiece (1) a countersink between 5 and 15 0 is obtained. The main advantages of the invention are improving the combustion quality and reducing NOx.

2. 发明申请

WO2018115956A1 LOW NITROGEN OXIDES EMISSION COMBUSTION HEAD WITH IMPROVED UPPER-MOUTHPIECE 审中-公开
公开(公告)号：WO2018115956A1
公开(公告)日：2018-06-28
申请号：PCT/IB2017/001603
申请日：2017-12-22
申请人： ECOFLAM BRUCIATORI S.P.A.
发明人： ARTUSO, Elia , CATTANEO, Ruben , MIORIN, Fabrizio , ROSSO, Giuseppe
IPC分类号： F23D11/00 , F23D11/40 , F23C9/00 , F23D5/16
摘要： Object of the present invention is a burner or combustion head (T) for a liquid fuel burner working with primary (Ap) and secondary (As) air, said secondary air (As) being in turn divided in central secondary air (As1) and peripheral secondary air (As2), where the mouthpiece (1) may have a possible downstream over-mouthpiece (2), and where, inside the mouthpiece (1) are: a pre-chamber (4) into which enters combustion air (A) coming from a fan unit (9); a nozzle (3) mounted on a nozzle holder (301) from whose orifice (302) said fuel (C) is nebulized in an outward open cone shape, where to said fuel a vortex motion of angular velocity ω has been impressed; a flame disk (7) within which the primary air (Ap) of said combustion air (A) is mixed with said liquid fuel (C) upstream of the flame start point (F) while said secondary air (As1) encounters said flame (F) after passing through turbulator slots (705) which produce a vortex motion coaxial to the axis of said mouthpiece (1) and with the same direction of said angular velocity ω; air guides (103) driving said peripheral secondary air (As2) to said flame (F). According to the invention, said over-mouthpiece (2) has at its inlet edge (203) an inlet ring (204) whose inner diameter measures D2i is lower than the diameter D2 of said over-mouthpiece (2) by a measure sufficient to guide the recirculated combustion fumes (FC) to converge towards the flame axis (F) but greater than the inner diameter D1i of the outlet edge (706) of the flame disk (7). The main advantages of the invention are improving the combustion quality and reducing NOx.

3. 发明申请

WO2018115954A1 LOW NITROGEN OXIDES EMISSION COMBUSTION HEAD WITH AIR GUIDE MEANS 审中-公开
公开(公告)号：WO2018115954A1
公开(公告)日：2018-06-28
申请号：PCT/IB2017/001601
申请日：2017-12-22
申请人： ECOFLAM BRUCIATORI S.P.A.
发明人： ARTUSO, Elia , CATTANEO, Ruben , MIORIN, Fabrizio , ROSSO, Giuseppe
IPC分类号： F23L9/00 , F23C7/00 , F23C9/06 , F23D11/00 , F23D11/24 , F23D11/38 , F23D11/40
摘要： Object of the present invention is a burner or combustion head (T) for a liquid fuel burner working with primary (Ap) and secondary (As) air, said secondary air (As) being in turn divided in central secondary air (As1) and peripheral secondary air (As2), where the mouthpiece (1) may have a possible downstream over-mouthpiece (2), and where, inside the mouthpiece (1) are: a pre-chamber (4) into which enters combustion air (A) coming from a fan unit (9); a nozzle (3) mounted on a nozzle holder (301) from whose orifice (302) said fuel (C) is nebulized in an outward open cone shape, where to said fuel a vortex motion of angular velocity ω has been impressed; a flame disk (7) within which the primary air (Ap) of said combustion air (A) is mixed with said liquid fuel (C) upstream of the flame start point (F) while said secondary air (As1) encounters said flame (F) after passing through turbulator slots (705) which produce a vortex motion coaxial to the axis of said mouthpiece (1) and with the same direction of said angular velocity co; air guides (103) driving said peripheral secondary air (As2) to said flame (F). According to the invention, said air guides (103) have an inclined plane with respect to the burner axis in the direction needed to produce on said peripheral secondary air (As2) a vortex motion coaxial to the axis of said mouthpiece (1) and with the same direction of said angular velocity ω. The main advantages of the invention are improving the combustion quality and reducing NOx.

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