公开(公告)号：JPH0921532A

公开(公告)日：1997-01-21

申请号：JP16639896

申请日：1996-06-26

Applicant: ABB MANAGEMENT AG

Inventor： AREKUSANDAA BEEKU ,  KURAUSU GUUTEIIRU ,  MARUTSUERU KEENITSUHI ,  PIITAA SHINIA

IPC: F23R3/20 ,  F02C7/22 ,  F23D17/00 ,  F23R3/28 ,  F23R3/36 ,  F23R3/46

Abstract: PROBLEM TO BE SOLVED: To ensure a simple and compact structure by connecting a main gas annular conduit with a main gas supply pipe line upstream and connecting a pilot gas annular conduit with a pilot gas supply pipe line upstream, and connecting the main gas annular conduit and the pilot gas annular conduit with an annular combustor downstream. SOLUTION: A main gas annular conduit 13 and a pilot gas annular conduit 14 are connected with a main gas supply pipe line 15 or a pilot gas supply pipe line 16 upstream, respectively, and are connected with an annular combustor 1 downstream. In operation of a gas turbine main gas introduced into the main gas annular conduit 13 through the main gas supply pipe line 15 and the pilot gas supply pipe line 16 and pilot gas introduced into the pilot gas annular conduit 14 are distributed to a main gas pipe 18 and a pilot gas conduit 19 of a double cone burner 4 in a pressure resistant burner hood 3. All connection parts of the fuel pipings are welded to improve reliability of the operation of the gas turbine.

公开(公告)号：JPH08100674A

公开(公告)日：1996-04-16

申请号：JP25134695

申请日：1995-09-28

Applicant: ABB MANAGEMENT AG

Inventor： AREKUSANDAA BEEKU ,  EDOUARUTO BURIYUUBUIRAA

IPC: F02C7/06 ,  F01D5/08 ,  F01D11/04 ,  F02C7/18 ,  F02C7/28

Abstract: PROBLEM TO BE SOLVED: To improve turbine efficiency by diverting a portion of a rotor- cooling-air leakage after some labyrinth seals for shielding air and introducing ambient air as cooling air into a bearing space so that is it partly used to cool a supporting structure. SOLUTION: Labyrinth seals and a gland bushing 18 are used for sealing inside an exhaust gas casing 14 supporting the outlet side of a turbine rotor 2. Shielding air having a higher pressure than exhaust gas A in an exhaust gas duct 32 is directed into the gland bushing 18 and then into the exhaust gas duct 32. Rotor cooling air R extracted from a compressor stage is fed into the rotor 2 through an exhaust-gas-side shaft end via a pipeline 19. The leakage of the rotor cooling air R is partly diverted after some of the labyrinth seals in the exhaust gas casing 14 and is used as shielding air. Ambient air is introduced as cooling air K into a bearing space 16 wherein it is uniformly distributed about via the gland bushing 18.

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.