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公开(公告)号：JPH10103620A
公开(公告)日：1998-04-21
申请号：JP25637597
申请日：1997-09-22
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , KNOEPFEL HANS PETER , WALKER DONALD FRANK DR
Abstract: PROBLEM TO BE SOLVED: To strengthen the flame stability without lowering the working effect of the burner and suit the flame to the geometric shape specified for the combustion chamber by forming the front side of the burner at the terminating part of a mixing section in a manner of having a torus-shaped cut-out molding in the plane surface of a leaping transversal plane and on the side of the combustion chamber. SOLUTION: At the terminating part of a mixing pipe 20 on the side of a combustion chamber a torus (doughnut-shaped) part 71 is formed along the terminating edges which form a burner front 70 in the radial direction. In the torus part 71, a main current 40 inside the mixing pipe 20 comes in contact with a torus current 72 produced by the torus part 71 and a swirl coefficient is selected in such a manner as to increase as a result of the contact. Based on the contact and simultaneously, a main current 73 deflected obliquely with respect to a burner axis 60 is produced, which main current 73 advances in the tangential direction with respect to the torus current 72. The fluid dynamic characteristics, which are attributable to the torus part 71, expand a reverse-flow valve, that is, a reverse-flow zone 50 powerfully, compared with a flow without a torus 71, in stabilizing a flame.
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公开(公告)号：JPH1061916A
公开(公告)日：1998-03-06
申请号：JP17167797
申请日：1997-06-27
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , KNOEPFEL HANS PETER , GRIFFIN TIMOTHY
Abstract: PROBLEM TO BE SOLVED: To additionally stabilize a flame without raising the amount of emission of harmful substances not so much by disposing a plurality of holes in a burner sickle-shaped plate, and using these holes for supplying a gaseous fuel to an outside recirculating zone. SOLUTION: A row of holes 27 are disposed within the range of a burner sickle-shaped plate 26, for example parallely to an axis 22 of a burner. These holes 27 serve to supply additional gaseous fuel to an outside recirculation zone and mix it thereinto. Operation is performed in such a manner that only about 3 to 8% of the gaseous fuel reaches the outside recirculation zone through the holes 27. Herein, cooling air has been already added and part of heat capable of being sensed by the recirculated gas is already dissipated to a front plate, so that the additional fuel addition does not raise NOx emission so much. Thus, a flame is additionally stabilized.
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公开(公告)号：JPH1038275A
公开(公告)日：1998-02-13
申请号：JP9037997
申请日：1997-04-09
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , GRIFFIN TIMOTHY DR , KNOEPFEL HANS PETER
Abstract: PROBLEM TO BE SOLVED: To stabilize the combustion of premix flame effectively even in any operating process across all load areas. SOLUTION: A part of mixture 16, formed in the end unit of a mixing division, is branched and is mixed into an outside re-circulating area 10. Branched sub flow 9 is mixed completely into high-temperature gas 17 generated by combustion in a combustion chamber and re-circulated to the outside re-circulating area 10, and, thereafter, the outside re-circulating area 10 is brought into contact with the main flow 16 of remaining mixture of air and fuel from the mixing division.
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公开(公告)号：DE19736902A1
公开(公告)日：1999-03-04
申请号：DE19736902
申请日：1997-08-25
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , STEINBACH CHRISTIAN DR , RUCK THOMAS
IPC: F23C7/00 , F23D11/24 , F23D11/38 , F23D11/40 , F23D14/24 , F23D14/40 , F23D17/00 , F23R3/02 , F23R3/12 , F23R3/36 , F23D14/62
Abstract: The fuel jet (105) produced by the fuel nozzle (104) has an emission angle which corresponds approximately to the adjustment angle of the components (101,102) forming the spin producer (100) in relation to the axis of the burner or of the combustion chamber. The spin producer comprises a number of circular blades. Use - As a burner for a heat producer.
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公开(公告)号：DE19647492A1
公开(公告)日：1998-05-20
申请号：DE19647492
申请日：1996-11-16
Applicant: ABB RESEARCH LTD
Inventor： BUSS JOHANNES , DOEBBELING KLAUS DR , WINKLER DIETER
IPC: F02C7/22 , F02C3/30 , F02C6/18 , F02C7/224 , F02M31/18 , F23K5/10 , F23K5/22 , F23R3/30 , F23R3/32 , F23R3/36
Abstract: The supply process involves using the same supply path to the gas turbine for both liquid and gas fuels. The liquid fuel is prepared before it reaches the burner. This preparation takes place in a fuel pre-vaporiser which has a vaporising tube (2) to prepare the liquid fuel. The tube is made of a material with high thermal conductivity. It is connected at one end to a supply device (4) for a flushing gas and at the other end to a fuel supply and removal device (5). The vaporiser may create a thin film of fuel before vaporising it.
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Patent Agency Ranking
公开(公告)号：DE4440558A1
公开(公告)日：1996-05-15
申请号：DE4440558
申请日：1994-11-12
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , SANTNER JOHANNES , STEINBACH CHRISTIAN DR
Abstract: The burner has nozzle holes (18) in high air speed zones of the burner in two part conical bodies. The nozzle holes (18) connect the interior (14) of the burner and the nozzle body's inflow duct (24) for the liquid fuel (12) being atomised. The burner consists of at least two hollow conical part bodies (1,2). The narrowest cross-section of the conical interior formed by the conical part bodies contains a high pressure atomising nozzle (3) for liquid fuel. The nozzle holes point towards the air inlet slots (19,20) in the conical part bodies, in the burner. The angle ( beta ) between the fuel drop spray (4) and the burner's longitudinal axis (5) is at least as big as the half-cone angle ( alpha ) between the part cone bodies (1,2) and the burner's longitudinal axis.
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公开(公告)号：DE59402785D1
公开(公告)日：1997-06-26
申请号：DE59402785
申请日：1994-01-27
Applicant: ABB RESEARCH LTD
Abstract: In a double-cone burner, at least one row of nozzles (10) for a fuel (15) containing highly reactive gaseous components and having a medium calorific value is mounted on the circumference of the partial conical bodies (1, 2) of the burner in the vicinity of the burner outlet, at a distance of about 30% of the nominal diameter of the burner. In addition, there is a fuel line (11) and a distributing channel (17), positioned in the region of the nozzles (10), for the highly reactive fuel. The fuel (15) containing highly reactive gaseous components is injected at high speed through the nozzles (10), which have a diameter of less than 1% of the nominal diameter of the burner, into the zones of high air speed and the depth of penetration and the direction of the fuel jets are matched to one another in such a way that ignition following mixing takes place only after the burner.
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公开(公告)号：DE4417539A1
公开(公告)日：1995-11-23
申请号：DE4417539
申请日：1994-05-19
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR
Abstract: Combustion of a richer-than-stoichiometric carbonaceous fuel mixture with air, yields a hot gas. Its heat drives an endothermic reaction, taking place between superheated steam and more fuel. The heat is transferred from the rich combustion process to the superheated steam and fuel, by radiative transfer, which may be direct or indirect. The hot gas flows as a hot core; the superheated steam/fuel mixture surrounds it in counterflow. Fuel gas is generated by the resulting reactions. In addition to this method, the gasifier to carry it out, is also claimed.
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公开(公告)号：DE4330083A1
公开(公告)日：1995-03-09
申请号：DE4330083
申请日：1993-09-06
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , KNOEPFEL HANS PETER , SATTELMAYER THOMAS DR
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公开(公告)号：DE4304213A1
公开(公告)日：1994-08-18
申请号：DE4304213
申请日：1993-02-12
Applicant: ABB RESEARCH LTD
Abstract: In a double-cone burner, at least one row of nozzles (10) for a fuel (15) containing highly reactive gaseous components and having a medium calorific value is mounted on the circumference of the partial conical bodies (1, 2) of the burner in the vicinity of the burner outlet, at a distance of about 30% of the nominal diameter of the burner. In addition, there is a fuel line (11) and a distributing channel (17), positioned in the region of the nozzles (10), for the highly reactive fuel. The fuel (15) containing highly reactive gaseous components is injected at high speed through the nozzles (10), which have a diameter of less than 1% of the nominal diameter of the burner, into the zones of high air speed and the depth of penetration and the direction of the fuel jets are matched to one another in such a way that ignition following mixing takes place only after the burner.
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