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1. 发明专利

DE69410511D1 未知
公开(公告)号：DE69410511D1
公开(公告)日：1998-07-02
申请号：DE69410511
申请日：1994-03-07
申请人： HITACHI LTD
发明人： FUJIMURA HIDEKAZU , KOYAMA KAZUHITO , NAKAMURA SHOZO , MORITOMO YOSHIKAZU
IPC分类号： F02C9/28 , B01F5/04 , F23D14/62 , F23R3/02 , F23R3/28 , F23R3/30 , F23R3/34
摘要： Apparatus for mixing gaseous fuel and air for combustion, particularly premixing-type combustion in a gas turbine, has a conduit providing a passage for flow of the air with a reverse bend (5) defined by opposed first and second wall portions (7,10) of bounding respectively the outside and the inside of said reverse bend as seen in a longitudinal section. The reverse bend establishes a flow region of air having a velocity gradient extending transversely across the conduit from a high velocity zone adjacent the first side wall portion (7) at the outside of the reverse bend to a low velocity zone. Injection means (8) for the gaseous fuel injects the fuel from the first side wall portion (7) into the high velocity zone with a velocity component transverse to the air flow and in a direction towards the low velocity zone. Rapid and uniform mixing is obtained.

2. 发明专利

DE69410511T2 未知
公开(公告)号：DE69410511T2
公开(公告)日：1999-03-04
申请号：DE69410511
申请日：1994-03-07
申请人： HITACHI LTD
发明人： FUJIMURA HIDEKAZU , KOYAMA KAZUHITO , NAKAMURA SHOZO , MORITOMO YOSHIKAZU
IPC分类号： F02C9/28 , B01F5/04 , F23D14/62 , F23R3/02 , F23R3/28 , F23R3/30 , F23R3/34
摘要： Apparatus for mixing gaseous fuel and air for combustion, particularly premixing-type combustion in a gas turbine, has a conduit providing a passage for flow of the air with a reverse bend (5) defined by opposed first and second wall portions (7,10) of bounding respectively the outside and the inside of said reverse bend as seen in a longitudinal section. The reverse bend establishes a flow region of air having a velocity gradient extending transversely across the conduit from a high velocity zone adjacent the first side wall portion (7) at the outside of the reverse bend to a low velocity zone. Injection means (8) for the gaseous fuel injects the fuel from the first side wall portion (7) into the high velocity zone with a velocity component transverse to the air flow and in a direction towards the low velocity zone. Rapid and uniform mixing is obtained.

3. 发明专利

DE69116030D1 未知
公开(公告)号：DE69116030D1
公开(公告)日：1996-02-15
申请号：DE69116030
申请日：1991-07-18
申请人： HITACHI LTD
发明人： KURODA MICHIO , IIZUKA NOBUYUKI , URUSHIDANI HARUO , KUMATA KAZUHIKO , SATO ISAO , SASADA TETSUO , TORIYA HAJIME , MORITOMO YOSHIKAZU , ISHIBASHI YOJI , OHMORI TAKASHI , AZUHATA SHIGERU
IPC分类号： F23R3/12 , F23R3/16 , F23R3/30 , F23R3/34
摘要： A burner comprises at least one swirl member (5) for mixing a fuel with an air previously to burning of the fuel, and at least one eddy generating device (6) which is arranged in a flow of a mixture of the fuel and air to generate an eddy (8) in the flow so that the eddy maintains a shape of a flame of the burned fuel and which is arranged apart from a downstream end of the swirl member (5) by a fixed sufficient distance so that the shape of the flame maintained by the eddy is prevented from moving toward the downstream end of the swirl member (5).

4. 发明专利

DE69208499T2 未知
公开(公告)号：DE69208499T2
公开(公告)日：1996-10-31
申请号：DE69208499
申请日：1992-04-15
申请人： HITACHI LTD
发明人： IKEDA HIRAKU , SASADA TETSUO , SATO ISAO , MORITOMO YOSHIKAZU , TAKAHASHI KOJI , TAKABA MINORU
IPC分类号： F23R3/26

5. 发明专利

DE69208499D1 未知
公开(公告)号：DE69208499D1
公开(公告)日：1996-04-04
申请号：DE69208499
申请日：1992-04-15
申请人： HITACHI LTD
发明人： IKEDA HIRAKU , SASADA TETSUO , SATO ISAO , MORITOMO YOSHIKAZU , TAKAHASHI KOJI , TAKABA MINORU
IPC分类号： F23R3/26

6. 发明专利

DE69116030T2 未知
公开(公告)号：DE69116030T2
公开(公告)日：1996-05-15
申请号：DE69116030
申请日：1991-07-18
申请人： HITACHI LTD
发明人： KURODA MICHIO , IIZUKA NOBUYUKI , URUSHIDANI HARUO , KUMATA KAZUHIKO , SATO ISAO , SASADA TETSUO , TORIYA HAJIME , MORITOMO YOSHIKAZU , ISHIBASHI YOJI , OHMORI TAKASHI , AZUHATA SHIGERU
IPC分类号： F23R3/12 , F23R3/16 , F23R3/30 , F23R3/34
摘要： A burner comprises at least one swirl member (5) for mixing a fuel with an air previously to burning of the fuel, and at least one eddy generating device (6) which is arranged in a flow of a mixture of the fuel and air to generate an eddy (8) in the flow so that the eddy maintains a shape of a flame of the burned fuel and which is arranged apart from a downstream end of the swirl member (5) by a fixed sufficient distance so that the shape of the flame maintained by the eddy is prevented from moving toward the downstream end of the swirl member (5).

7. 发明专利

DE69022698T2 未知
公开(公告)号：DE69022698T2
公开(公告)日：1996-05-02
申请号：DE69022698
申请日：1990-12-18
申请人： HITACHI LTD
发明人： IWAI KAZUMI , KOIZUMI HIROMI , KUMATA KAZUHIKO , MORITOMO YOSHIKAZU
IPC分类号： F23R3/06 , F23R3/08 , F23R3/14

8. 发明专利

DE69022698D1 未知
公开(公告)号：DE69022698D1
公开(公告)日：1995-11-02
申请号：DE69022698
申请日：1990-12-18
申请人： HITACHI LTD
发明人： IWAI KAZUMI , KOIZUMI HIROMI , KUMATA KAZUHIKO , MORITOMO YOSHIKAZU
IPC分类号： F23R3/06 , F23R3/08 , F23R3/14

9. 发明专利

JP2002144079A REPAIRING METHOD OF HEAT RESISTANT MEMBER AND REPAIRING METHOD OF GAS TURBINE 失效
公开(公告)号：JP2002144079A
公开(公告)日：2002-05-21
申请号：JP2000344246
申请日：2000-11-10
申请人： HITACHI LTD
发明人： FUKUMAKI TAKASHI , ARIKAWA HIDEYUKI , WATANABE KENJI , MORITOMO YOSHIKAZU
IPC分类号： B23P6/00 , B23K35/30 , B23P6/04 , C22C19/05 , F01D5/28 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To provide a repairing method of a heat resistant member in which a void of a crack-repaired part can be considerably reduced by unifying a wet extension of a brazing filler metal when repairing a cracked part, and a repairing method of a gas turbine. SOLUTION: In this repairing method for repairing the cracked part of the heat resistant member by the brazing filler metal, the brazing filler metal is placed on the cracked part of the heat resistant member, and heated and maintained at the solid phase temperature lower than the melting point of the brazing filler metal lower than 200 deg.C, and heated and melted at the temperature higher than the melting point of the brazing filler metal or the liquid phase temperature of the brazing filler metal lower than 30 deg.C, and heated and maintained at the temperature higher than the heating and melting temperature by 50-100 deg.C compared with diffusion heating. This repairing method is used for repairing a rotor blade and a stator blade of the gas turbine.

10. 发明专利

JP2001012740A GAS TURBINE COMBUSTION DEVICE 失效
公开(公告)号：JP2001012740A
公开(公告)日：2001-01-19
申请号：JP18517699
申请日：1999-06-30
申请人： HITACHI LTD
发明人： SHIGETA SEIJI , WATANABE YASUYUKI , MORIWAKI BUNJI , MORITOMO YOSHIKAZU , TAKEHARA ISAO , SASADA TETSUO , ITO KAZUYUKI , KOBAYASHI SHIGEKI
IPC分类号： F23R3/16 , F23R3/28 , F23R3/32
摘要： PROBLEM TO BE SOLVED: To provide a gas turbine combustion device to reduce incurring of a pressure loss at a premixer, sufficiently mix together fuel and air at a short premixture distance, and further sufficiently prevent the damage of a combustor due to discharge of flame to the outside of the premixer even when ignition is effected at the internal part of the premixer and flame is present. SOLUTION: A premixer 4 to mix together air and fuel is provided in a spot situated upper stream from a combustion chamber 2. The premixer comprises a gas flow passage 20 through which combustion air and mixture gas flow; and a fuel nozzle 5 situated in the gas flow passage. Fuel injected through a fuel nozzle is mixed with air in the premixer, and the air-fuel mixture is fed in the combustion chamber 2. In a so formed gas turbine combustion device, an air flow direction varying means 40 to change a flow of air flowing through the premixer into the direction of the fuel nozzle hole of the fuel nozzle is situated in a spot situated upper stream from the fuel nozzle hole of the fuel nozzle 5 and on the gas flow passage wall of the premixer. Further, a gas flow passage throttle means 30 to throttle the sectional area of the gas flow passage is situated in a spot situated downstream from the fuel nozzle hole of the fuel nozzle.

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