公开(公告)号：JPH06307640A

公开(公告)日：1994-11-01

申请号：JP7112394

申请日：1994-04-08

Applicant: ABB MANAGEMENT AG

Inventor： RORUFU ARUTAUSU ,  AREKUSANDAA BEEKU ,  YOO PIN CHIYOU ,  ADONAN EROGURU

IPC: F23R3/12 ,  B01F5/00 ,  B01F5/04 ,  B01F5/06 ,  F02K1/38 ,  F23D14/62 ,  F23D14/70 ,  F23R3/16 ,  F23R3/28 ,  F23R3/32 ,  F23R3/34

Abstract: PURPOSE: To cut short mixing distance drastically and reduce pressure loss by the use of new static mixers comprising three dimensional vortex generators. CONSTITUTION: A mixing chamber for jetting a gaseous secondary flow into a regulated gaseous main flow, wherein, in the type where the secondary main flow has a substantially smaller mass flow than the main flow, the main flow is guided via the plurality of vortex generators 9 which are arranged adjacent to one another over the width or the periphery of the duct 20 through which flow takes place, the height (h) of the vortex generators 9 is at least 50% of the height H of the duct 20 through which flow takes place, and the secondary flow is fed into the duct 20 in the immediate region of the vortex generators 9.

公开(公告)号：JPH0771758A

公开(公告)日：1995-03-17

申请号：JP6975094

申请日：1994-04-07

Applicant: ABB MANAGEMENT AG

Inventor： YOO PIN CHIYOU ,  ADONAN EROGURU

IPC: F23R3/12 ,  B01F5/04 ,  F02C7/22 ,  F15D1/00 ,  F23C7/00 ,  F23D14/62 ,  F23R3/30 ,  F23R3/36

Abstract: PURPOSE: To obtain a method for achieving thorough mixing of combustion gas and fuel within a shortest distance while keeping a uniform velocity distribution in the mixing region. CONSTITUTION: In a fuel supply system with premixing combustion, a gaseous and/or liquid fuel is introduced as a secondary flow into a gaseous ducted main flow wherein the secondary flow has a substantially smaller mass flow than the main flow. The main flow is guided via vortex generators 9 of which a plurality are arranged adjacent to one another over the periphery of a through duct 20. The secondary flow is fed into the duct 20 in the immediate region of the vortex generators 9. A vortex generator 9 has three surfaces around which flow takes place freely, which surfaces extend in the flow direction, one of them forming the top surface and the two others forming the side faces. The fuel is fed into the duct from nozzles which are located before, behind or in the vortex generator.

公开(公告)号：JPH0771757A

公开(公告)日：1995-03-17

申请号：JP6974594

申请日：1994-04-07

Applicant: ABB MANAGEMENT AG

Inventor： YOO PIN CHIYOU ,  ADONAN EROGURU

IPC: F23R3/12 ,  F15D1/00 ,  F23R3/20 ,  F23R3/30 ,  F23R3/36

Abstract: PURPOSE: To achieve thorough mixing of combustion air and fuel within a shortest distance while stabilizing the flame aerodynamically. CONSTITUTION: Combustion air is guided via vortex generators 9 and fuel is introduced into a duct 20 directly from the region of the vortex generators. A vortex generator has three surfaces around which flow can take place freely, i.e., one forming the top surface and two others forming the side surfaces. These surfaces extend in the flow direction and two side surfaces has an angle a varying in the flow direction. The top surface extends at an incident angle to the duct wall 21 (21a, 21b) which varies in the flow direction.