-
公开(公告)号：JPH08166108A
公开(公告)日：1996-06-25
申请号：JP16125195
申请日：1995-06-27
Applicant: ABB RESEARCH LTD
Inventor： PEETAA YANZOON , TEINOOMARUTEIN MARURINGU , TOOMASU ZATSUTERUMAIAA
Abstract: PURPOSE: To reduce the emission of harmful substances related especially to the emission of NOx even in the case of employing liquid fuel and gaseous fuel or further even in the case of mixing operation of both fuels. CONSTITUTION: Mixture 6 consisting of air 3 and re-cycled flue gas 4 is conducted to flow into a burner 100 as combustion air 115 for a first combustion stage 1. Then, the heat amount of high-temperature gas from the first combustion stage 1 is regulated before sending the same into a second combustion stage 2, and mixture 14 consisting of the fuel 15 and the re-cycled flue gas 4 is introduced into the high-temperature gas to generate combustion in the second combustion stage 2 by self-ignition.
-
Patent Agency Ranking
公开(公告)号：JPH08189641A
公开(公告)日：1996-07-23
申请号：JP18433095
申请日：1995-07-20
Applicant: ABB RESEARCH LTD
Inventor： TOOMASU ZATSUTERUMAIAA
IPC: F23R3/30 , F23C1/08 , F23C6/04 , F23C13/00 , F23C99/00 , F23R3/12 , F23R3/16 , F23R3/40 , F23C11/00
Abstract: PROBLEM TO BE SOLVED: To suppress discharge of all toxic materials such as UHC, CO generated at burning by providing a notable cross sectionally enlarged part for self- igniting a fuel and air mixture at a second stage in a mixer for forming the mixture at a first stage in a multi-stage burner. SOLUTION: A first stage 1 has a mixer 100 for forming a fuel and air mixture 19 at a head side, a catalyst 3 disposed at the downstream side of the mixer 100 and completely burns the mixture 19 by the catalyst 3. A vortex- inducing unit 200 is disposed at the downstream side of the catalyst 3, and thereby hot gas, 3, turns into a swirling flow. Gas fuel and/or liquid fuel 9 can be injected in a gas main flow 4 at the downstream side of the unit 200. A second stage 2, provided continuing to the flowing direction forms an intrinsic burning zone 11, has a notable cross sectional enlarged part 12, which specifies the flow cross sectional area of the starting end side of the stage 2, thereby effectively self-igniting the mixture 19 to stabilize a flame surface 21.
-
3.发明专利
公开(公告)号：JPH06241423A
公开(公告)日：1994-08-30
申请号：JP1658094
申请日：1994-02-10
Applicant: ABB RESEARCH LTD
Inventor： KURAUSU DEBERINKU , HANSU PEETAA KUNEPUFUERU , BUORUFUGANGU PORIFUKE , TOOMASU ZATSUTERUMAIAA
Abstract: PURPOSE: To provide an operating method for a burner for operating a heat engine to use fuel containing a highly reactive gas component in addition to combustion of normal oil or natural gas and having a medium calorific value without needing for dilution by steam and nitrogen before combustion. CONSTITUTION: For fuel 15 containing a highly reactive gas component and having a medium calorific value, at least one row of nozzles 10 are arranged on the periphery of partial conical bodies 1 and 2 near the burner outlet at a distance of approximately maximum 30% of a nominal burner diameter. For the highly reactive fuel 15, one fuel conduit 11 and a distributing passage 17 are arranged in a range of a nozzle 10. Further, two systems for injecting two gaseous fuels 14 and 15 are constituted unrelatedly independently from each other.
-
公开(公告)号：JPH0914604A
公开(公告)日：1997-01-17
申请号：JP14600596
申请日：1996-06-07
Applicant: ABB RESEARCH LTD
Inventor： KURAUSU DETSUBERINGU , DEIITAA BUINKURAA , BUORUFUGANGU POORIFUKE , TOOMASU ZATSUTERUMAIAA
Abstract: PROBLEM TO BE SOLVED: To provide the operating method of a device equipped with a stage type combustion system, minimizing the discharge of poisonous substances such as NOx especially. SOLUTION: A primary combustion stage 1 is operated by fuel/air mixture 3 having a percentage of excess air, which is larger than that of the whole of combustion device, while high-temperature combustion gas 5 from the primary combustion stage 1 is mixed into fuel/air mixture 4 having a percentage of excess air, which is smaller than that of whole of the combustion device.
-
公开(公告)号：JPH06294330A
公开(公告)日：1994-10-21
申请号：JP33252493
申请日：1993-12-27
Applicant: ABB RESEARCH LTD
Abstract: PURPOSE: To conduct impingement cooling for a cooling surface by avoiding unfavorable lateral flow, and by evading preliminary heating of cooling air, in a type in which a cooling surface and a cover surface are disposed in parallel each other. CONSTITUTION: Trapezoid molding members 7 which are connected to one another via a cooling surface 5 in a direction orthogonal to a flow direction of cooling air between the cooling surface 5 forming an inside of a combustion chamber and a cover surface 6 disposed in parallel thereto and which are opened respectively in their narrow sides are arranged at a constant distance. The cooling air is introduced into a feed chamber through a supplying face 1 of the member 7 facing in the cover surface 6, and impinges on the cooling surface 5 through perforations 8. Heated air is intruded into a trapezoidal backflow passage 3 through a gap between overflow surfaces 2, but cooling action for air exiting from the neighboring members 7 is not impaired in this case. A cooling surface 4 is cooled impingingly thereby.
-
公开(公告)号：JPH09189406A
公开(公告)日：1997-07-22
申请号：JP35030796
申请日：1996-12-27
Applicant: ABB RESEARCH LTD
Inventor： KURAUSU DETSUBERINGU , ADONAN EROGURU , HANSU PEETAA KUNEPUFUERU , BUORUFUGANGU POORIFUKE , TOOMASU ZATSUTERUMAIAA
Abstract: PROBLEM TO BE SOLVED: To reduce discharge of NOx and CO by modifying a conical burner for gaseous and liquid fuel. SOLUTION: Partial conical bodies 1 and 2 have a single diffuser 27 common to the ends situated downstream therefrom. The partial conical body has a transfer region 28 to the diffuser 27, and the size of an air inflow slit 7 is continuously decreased in a transfer region toward the direction of a flow. The outlet diffuser 27 is formed in an annular shape without an annular air inflow slit 7.
-
-
-
-
-
Search Results
6
records
(took 0.021 seconds)
