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11. 发明专利

JP2005009414A Gas turbine combustor and its fuel-supply method 有权
标题翻译：燃气轮机及其燃料供应方法
公开(公告)号：JP2005009414A
公开(公告)日：2005-01-13
申请号：JP2003175030
申请日：2003-06-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YOSHIDA SHOHEI , HIRATA YOSHITAKA , ITO KAZUYUKI , MUROTA TOMOYA , INOUE HIROSHI , ASAI TOMOHIRO
IPC分类号： F02C7/04 , F02C7/22 , F23R3/28 , F23R3/34 , F23R3/42
CPC分类号： F23R3/286 , F23R3/343
摘要： PROBLEM TO BE SOLVED: To provide a gas turbine combustor and its fuel-supply method in which backfire is prevented from occurring while reducing the amount of NO
x generation.
SOLUTION: In the combustor 2, fuel is mixed with combustion air let in from a compressor 1, and the mixture is burned. Generated combustion gas is supplied to the gas turbine 3. A liquid-fuel nozzle 13 injecting the fuel is installed in the center of a mixing chamber wall 5 having a mixing chamber 4 in the inside. The wall 5 is of a hollow conical shape flared in the direction of injection. In the mixing chamber wall 5, a plurality of air-conduction holes 14, 15, 16 are made so that while passing the combustion air in the mixing chamber 4, the angle for passing the air is deviated at least to the peripheral direction of the wall 5. Gaseous-fuel nozzles 17 are provided on the outside periphery of the wall 5 so as to respectively oppose to the air-conduction holes 14, 15, 16. The nozzles 17 inject the fuel nearly coaxially with the axes of L1, L2, L3 of the air-conduction holes 14, 15, 16.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种燃气轮机燃烧器及其燃料供给方法，其中在减少NO x 产生量的同时防止发生回火。解决方案：在燃烧器2中，燃料与从压缩机1引入的燃烧空气混合，混合物燃烧。产生的燃烧气体被供给到燃气轮机3.喷射燃料的液体燃料喷嘴13安装在混合室壁5的中部，混合室壁5的内部具有混合室4。壁5是在注射方向上张开的中空圆锥形状。在混合室壁5中，形成多个通气孔14,15,16，使得在混合室4内的燃烧空气通过时，使空气通过的角度至少偏离气体燃料喷嘴17设置在壁5的外周上，以分别与通气孔14,15,16相对。喷嘴17将燃料与L1，L2的轴线几乎同轴地注入，空气导通孔14,15,16的L3。版权所有（C）2005，JPO＆NCIPI

12. 发明专利

JP2003224931A DISTRIBUTION SYSTEM LOAD ESTIMATING DEVICE 审中-公开
公开(公告)号：JP2003224931A
公开(公告)日：2003-08-08
申请号：JP2002018220
申请日：2002-01-28
申请人： HITACHI LTD , KANSAI ELECTRIC POWER CO
发明人： TOMITA YASUSHI , SAWA TOSHIYUKI , INOUE HIROSHI , IMAMURA YUZURU , FURUTA SHINJI
IPC分类号： H02J3/00
摘要： PROBLEM TO BE SOLVED: To attain highly precise estimation on fluctuations at predetermined time intervals, such as increments of one hour in the load of a transformer, so as to accommodate changes in social situations or life styles. SOLUTION: This device includes a consumer load estimating means 15 of estimating a daily load curve of each consumer connected to a transformer, and a transformer load estimating means 17 of estimating the daily load curve of the transformer, using the estimated results of the daily load curve of each consumer connected to the transformer. COPYRIGHT: (C)2003,JPO

13. 发明专利

JP2001280154A THERMOPHORE, MANUFACTURING METHOD THEREFOR, AND GAS TURBINE COMBUSTOR PROVIDED WITH THERMOPHORE 失效
公开(公告)号：JP2001280154A
公开(公告)日：2001-10-10
申请号：JP2000097852
申请日：2000-03-30
申请人： HITACHI LTD
发明人： KOGANEZAWA TOMOKI , INOUE HIROSHI , WATANABE YASUYUKI , KOBAYASHI SHIGEYOSHI
IPC分类号： F02C7/18 , F23R3/42
摘要： PROBLEM TO BE SOLVED: To provide a heat transmitting device capable of improving heat transmitting performance while suppressing increase of pressure loss. SOLUTION: In the heat transmitting device wherein a heat transmitting medium is circulated with a surface of a member 12 along the surface of the member and heat is supplied and received between the member and the heat transmitting medium, vortex generating means 13 for generating vortex (vertical vortex, spiral vortex having a center axis) having a center axis of rotation on the heat transmitting medium are disposed on a surface of a side where the heat transmitting medium of the member 12 is circulated, the vortex generating means are disposed in parallel with each other in the circulating direction of the heat transmitting medium, and turbulent flow promoting means 14 for destroying a boundary layer generated on the heat transmitting medium is disposed between vortex generating means which are disposed in parallel with each other.

14. 发明专利

JP2000291448A GAS TURBINE COMBUSTION DEVICE AND FLAME BACKFLOW DETECTING METHOD 失效
公开(公告)号：JP2000291448A
公开(公告)日：2000-10-17
申请号：JP9485499
申请日：1999-04-01
申请人： HITACHI LTD
发明人： YOSHIDA SHOHEI , HIRATA YOSHITAKA , OTSUKA MASAYA , MUROTA TOMOYA , KOBAYASHI SHIGEYOSHI , INOUE HIROSHI , MORIWAKI BUNJI
IPC分类号： F02C9/00 , F02C9/28 , F23R3/00
摘要： PROBLEM TO BE SOLVED: To sufficiently prevent burnout of a premixing burner by instantaneously detecting that flame flows back to the burner. SOLUTION: A gas turbine combustion device having a diffuse combustion burner arranged in the axial central part of a combustion chamber, a diffusion fuel supplying system for supplying fuel to the diffuse combustion burner, a premixing combustion burner arranged around the diffuse combustion burner, and a premixing fuel supplying system for supplying fuel to the premixing combustion burner is provided with a pressure-detecting device 19 for detecting pressure in a combustor, a flame backflow deciding device 21 for deciding that the flame flows back to the inside of the burner on the basis of an output signal of the pressure detecting device, and a fuel control device 22 for controlling the supplying flow rate of the diffusion fuel supplying system and the premixing fuel supplying system on the basis of a decided output signal of the flame backflow deciding device.

15. 发明专利

JPH11343869A GAS TURBINE COMBUSTOR AND CONTROL METHOD THEREOF 失效
公开(公告)号：JPH11343869A
公开(公告)日：1999-12-14
申请号：JP15250598
申请日：1998-06-02
申请人： HITACHI LTD
发明人： KOGANEZAWA TOMOKI , INOUE HIROSHI
IPC分类号： F02C9/34 , F23R3/28 , F23R3/32
摘要： PROBLEM TO BE SOLVED: To reduce a NOx generation quantity by controlling a diffusion burner nearby ignited premixed burners so as to be not ignited, when the number of premixed burners to be ignited according to a load is controlled to increase or decrease. SOLUTION: In the combustor 2 of a gas turbine, a diffusion pilot burner 11 exists on the center on the upper stream end. and annular premixed burners 12 provided with a plurality of fuel nozzles 8 and flame stabilizers 9 for premixed burner are arranged on the outer circumference. In this case, fuel systems 201A, 201B for diffusion pilot burner and fuel systems 202A, 202B, 203C for premixed burner branched from a main fuel system 200 are provided. In a low load territory, operation 15 performed by a diffusion pilot burner 11, in a specified load territory, while reducing the fuel flow to the diffusion pilot burner 11, the fuel flow of the fuel system 202A for premixed burner is increased, and the fuel flow of the fuel system 201A for diffusion pilot burner is made zero.

16. 发明专利

JPH1028128A DISTRIBUTION CONTROL SYSTEM AND COMMUNICATING METHOD FOR THE SAME 失效
公开(公告)号：JPH1028128A
公开(公告)日：1998-01-27
申请号：JP18214796
申请日：1996-07-11
申请人： HITACHI LTD
发明人： KAWAHARA TAIICHIRO , INOUE HIROSHI , KIKUCHI SATOSHI
IPC分类号： G06F13/00 , H02J13/00 , H04L12/28 , H04L12/40 , H04L12/70 , H04Q9/00 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To reduce the reception processing load on a specific receiving node which receives information from a plurality of transmitting nodes in a large- scaled distribution system. SOLUTION: In a power system monitor control system, transmission processing computers 21-2n which receive information plural power stations 31-3n transmit received information through a control LAN 100 to a monitor control computer 10. A data edition processing part 213 prepares a message packet corresponding to a case that the classification of the received information is SV information (binary) or a case that it is measured value information, and directly transmits it from a one-to-one transmission processing part 214 to the monitoring control computer 10 when the received information is the former case. When the received information is the latter case, the data edition processing part 213 successively relays the adjacent transmission processing computer according to a packet relay ring, and transmits the message packets put together to the monitoring control computer 10.

17. 发明专利

JPH09236261A GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPH09236261A
公开(公告)日：1997-09-09
申请号：JP4092796
申请日：1996-02-28
申请人： HITACHI LTD
发明人： KOBAYASHI SHIGEYOSHI , OTAGURO TOSHIO , OTSUKA MASAYA , YOSHIDA SHOHEI , INOUE HIROSHI , KOGANEZAWA TOMOKI
IPC分类号： F02C9/28 , F23C99/00 , F23R3/00 , F23R3/16 , F23R3/26 , F23R3/32 , F23R3/34 , F23C11/00
摘要： PROBLEM TO BE SOLVED: To effectively suppress the pulsating combustion by analyzing the pulsating frequency by the physical amounts due to the detected pulsating combustion of a combustor, calculating a control signal to suppress the variation of the amount by the frequency, and exciting the speed change of one of the premixed gas or premixing combustion air by the signal. SOLUTION: A plurality of oscillating combustion detecting means 313 for detecting the physical amount due to the pulsating combustion are installed in a combustor main chamber outer cylinder 301. An electric signal 314 for representing the amount due to the combustion obtained by the means 313 is guided to control amount calculating means 315 installed out of the combustor. In this case, necessary control amount is obtained based on the frequency, and a control signal 316 is input to heat fluid exciting means 318 provided in a premixer or heat fluid exciting means 319 provided on the surface of a flame stabilizer. These exciting means excite the heating value change in the combustor by utilizing the hydrodynamic instability in the combustor, cancels the pulsating combustion originally existed to suppress the pulsating combustion.

18. 发明专利

JPH07332669A GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPH07332669A
公开(公告)日：1995-12-22
申请号：JP13009494
申请日：1994-06-13
申请人： HITACHI LTD
发明人： INOUE HIROSHI , ISHIBASHI YOJI , YOSHIDA SHOHEI , KOGANEZAWA TOMOMI , AKATSU SHIGEYUKI , IWAI KAZUMI
IPC分类号： F23R3/06 , F23C3/00 , F23R3/30
摘要： PURPOSE:To rarefy a premixed gas by a method wherein a premixing passage air inlet is formed into a large number of small holes, and the air is dispersed to upstream and downstream premixing passage wall surfaces of a fuel nozzle. CONSTITUTION:A fuel 21 for premixing is jetted into an annular premixing apparatus 12 from a fuel nozzle 8. In the meantime, air 52 for premixed combustion is jetted from a large number of air holes 53 which are provided on the premixing apparatus, and flows into the premixing apparatus 12 as a jet stream, and is mixed with the fuel for premixing which is jetted from the fuel nozzle, and thus, a premixed gas is formed. By forming the premixed gas in this manner, not only a kinetic energy of the fuel but a kinetic energy of the air can also be utilized as an energy for the mixing, and for this reason, the mixing is accelerated, a uniform premixed gas can be obtained, and it is effective for the reduction of NOx.

19. 发明专利

JPH07135737A METHOD OF DETERMINING LOAD INTERCHANGE MODE OF DISTRIBUTION SYSTEM 失效
公开(公告)号：JPH07135737A
公开(公告)日：1995-05-23
申请号：JP27927893
申请日：1993-11-09
申请人： HITACHI LTD
发明人： IMAMURA YUZURU , KANAI MINORU , INOUE HIROSHI
IPC分类号： H02J3/00 , H02J3/04
摘要： PURPOSE:To provide a method in which supply validity as an index for quantitatively evaluating the propriety of supply at every feeder to each node can be obtained properly and simply, in the method and an equipment for determining a load interchange mode determining the way of the allocation of each section (feeders) capable of feeding peripheral power to each load block (the nodes) of a distribution system. CONSTITUTION:Candidate feeders to each node and necks on the avoidance of service interruption are extracted by blocks 102 and 102A for determining an interchange mode by allocating feeders to each node of a network as an interchange object extracted by a processing block 101, and suppliable capacity for every feeder to each node and supply validity as evaluation indices for every feeder are acquired by a block 104 in a block 103 on the basis of the candidate feeders and the necks. Accordingly, supply validity at every feeder to each node can be computed with high accuracy by simple procedure.

20. 发明专利

JPH077541A NODE SYSTEM 失效
公开(公告)号：JPH077541A
公开(公告)日：1995-01-10
申请号：JP32911692
申请日：1992-12-09
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE , FUJITSU LTD , NEC CORP , HITACHI LTD , NORTHERN TELECOM LTD
发明人： INOUE HIROSHI , ONISHI KOICHI , YASUDA SHINJI , TSUBOI YOJI , MURATA HATSUO , TAKEMURA TETSUO , JIYON SHIN , POORU RODEITSUKU
IPC分类号： H04M3/00 , H04M3/36
摘要： PURPOSE: To make the management of lines set in a junctor easier by reducing the number of the lines. CONSTITUTION: Since the volume of traffic is large between exchange modules 1 and 2 and between exchange modules 2 and 4, direct communication paths are provided. Between the modules 1 and 4, on the other hand, no direct communication path is provided, but the communication paths between the module 1 and an exchange module 3 for tandem connection and between the modules 3 and 4 are used for communication, because the volume of traffic is not large. Since no communication path is set between exchange modules between which the traffic is not heavy, the number of lines set in a junctor 5 can be reduced.

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