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

IPC: F23R3/20 ,  F23C7/00 ,  F23D11/24 ,  F23D11/40 ,  F23D17/00 ,  F23R3/12 ,  F23R3/28 ,  F23R3/30

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.

公开(公告)号：JPH09178126A

公开(公告)日：1997-07-11

申请号：JP32189996

申请日：1996-12-02

Applicant: ABB RESEARCH LTD

Inventor： KURAUSU DETSUBERINGU ,  ADONAN EROGURU ,  HANSU PEETAA KUNEPUFUERU ,  BUORUFUGANGU POORIFUKE ,  DEIITAA BUINKURAA

IPC: F23C7/00 ,  F23D11/40 ,  F23D14/62 ,  F23D17/00

Abstract: PROBLEM TO BE SOLVED: To improve mixing characteristics and eliminate the risk of production of back fire over the entire operation. SOLUTION: A premixing burner is adapted such that it includes an internal chamber 20 for stabilizing a turning flow, which chamber includes an inner body 13 extending conically in a flow direction of the turning flow, and an outer cover of which chamber is interrupted by a least one air inflow slit arranged tangentially in the longitudinal extending direction for the flow of a combustion medium 15 into the internal chamber 20. In the premixing chamber, supply passages 11c, 12c extend on the upstream side of tangential air inflow slits 11a, 12a, which include a means for producing an eddy on an air stream 23 and a means for introducing a fuel 24.

公开(公告)号：JPH09173808A

公开(公告)日：1997-07-08

申请号：JP32198896

申请日：1996-12-02

Applicant: ABB RESEARCH LTD

Inventor： ADONAN EROGURU ,  BUORUFUGANGU PORIFUKE ,  PIITAA SHINIA

IPC: B01F5/00 ,  B01F5/06 ,  F23R3/20

Abstract: PROBLEM TO BE SOLVED: To improve mixing function in a device, in which two or more fluids are caused to flow along a partition wall and the fluids are mixed by a large number of eddy generators arranged on the downstream of the partition wall, by constituting the eddy generator of a specific roof surface comprising two components and a specific bottom surface comprising two components. SOLUTION: In a mixing device wherein fluid to be mixed flows along a partition wall and a large number of eddy generators 9 each having a surface, over which fluid can flow, are arranged on the downstream side end of the partion wall, the generator 9 is composed of a large number of triangular surfaces, i.e., roof surfaces 1, 2, sidewall surfaces 11, 13, and bottom surface. Longitudinal edges 12, 14 of roof surfaces 1, 2, longitudinally extending, are in conformity to inclined sides of the sidewall surface 11, 13 projecting into a flow passage and form an angle of elevation θ with respect to a partition wall 22. And rear edge 5, 6 located downstream of the surfaces 1, 2 are twisted through a predetermined angle of γwith respect to the wall 22. And the surfaces 1, 2 are connected together through a joint edge 10.

公开(公告)号：JPH09170729A

公开(公告)日：1997-06-30

申请号：JP31189796

申请日：1996-11-22

Applicant: ABB RESEARCH LTD

Inventor： KURAUSU DETSUBERINGU ,  ADONAN EROGURU ,  PIITAA SHINIA

IPC: F23D11/04 ,  F23C99/00 ,  F23D14/02 ,  F23D14/62 ,  F23D17/00 ,  F23M9/02 ,  F23C11/00

Abstract: PROBLEM TO BE SOLVED: To make it possible to perform extremely low NOx emission by improving a premixing burner, to densely mix combustion air and fuel in an extremely short section by incorporating a simple geometrical shape and effective motion behavior in a burner, to perform the uniform speed distribution in a mixing area, and to effectively prevent the back fire of a flame without using a mechanical flame stabilizer. SOLUTION: To burn gaseous and/or liquid-like fuel, the premixing burner comprises a vortex generator 9 for generating vortex for allowing residual vortex to retain in fuel/air mixed flow after the air and fuel are completely mixed, an annular main fluid passage 20 formed of a passage wall with a constant height and having a length of a range of 5 to 20 times as large as the height at the downstream side of the generator 9 and fuel injection means and enlarged by the closure of the inner cylinder wall 21a to form a circular main fluid passage.

公开(公告)号：JPH09112825A

公开(公告)日：1997-05-02

申请号：JP26208696

申请日：1996-10-02

Applicant: ABB RESEARCH LTD

Inventor： ADONAN EROGURU ,  HANSU PEETAA KUNEPUFUERU ,  PIITAA SHINIA

IPC: F23D11/40 ,  F23D11/10

Abstract: PROBLEM TO BE SOLVED: To atomize fine fuel and to suppress the generation of harmful substance by improving the apparatus for injecting fuel to compressed gaseous medium having a cylindrical hollow unit including at least one fuel supply passage and means for introducing compressed atomized air. SOLUTION: A vortex chamber 1 is disposed in a hollow unit 24. The chamber 1 is connected to a fuel supply passage 2 via at least one inlet opening. The cross sectional surface of the chamber 1 is narrowed in the flowing direction of atomized air guided through the unit 24, thereby forming a conical shape 8. A partition wall 20 is disposed between the fuel in the chamber and atomized air 5 at the upstream of the chamber 1, and the wall is extended at least to the center of the inlet opening 6 at the downstream.