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1. 发明专利

JPH1062313A MAINTENANCE CONTROL DEVICE AND MANINTENANCE CONTROL METHOD FOR STRUCTURAL PART 失效
公开(公告)号：JPH1062313A
公开(公告)日：1998-03-06
申请号：JP22098396
申请日：1996-08-22
申请人： HITACHI LTD
发明人： ISOBE NOBUHIRO , SAKURAI SHIGEO , KUNIHIRO MASATSUGU
IPC分类号： G01M99/00 , G01M19/00
摘要： PROBLEM TO BE SOLVED: To effectively use a part just before the expiration of the life by determining a damage development curve in each mounting position of parts and calculating the combination of mounting positions between scheduled periodic inspections on the basis of it. SOLUTION: A damage development curve arithmetic device 2 calculates a damage development curve on the basis of the initial crack length of a stationary blade, the maximum crack length of one stationary blade and the start/stop frequency of a gas turbine. A damage developing quantity arithmetic device 3 calculates the developing quantity of the maximum crack between future periodic inspections on the basis of the start/stop frequency and damage development curve between future scheduled periodic inspections, and transmits it to a mounting position arithmetic device 4. The device 4 calculates the combination of mounting positions on the basis of this input data and the upper and lower limit values of the maximum crack allowable limit range. The mounting position between periodic inspections of each stationary blade, the periodic inspection time for stationary blade disposal, the number of stationary blades not reaching the crack lower limit value, and the maximum crack length in each periodic inspection are displayed on a display device 5 so that a proper part control can be performed.

2. 发明专利

JPS6237215B2 失效
公开(公告)号：JPS6237215B2
公开(公告)日：1987-08-11
申请号：JP16798980
申请日：1980-12-01
申请人： HITACHI LTD
发明人： HOSHINA SHOICHI , IIZUKA NOBUYUKI , KUNIHIRO MASATSUGU , SAKAMOTO TAKEYOSHI , WATANABE KATSUYOSHI
IPC分类号： F02C3/14 , F02C7/00 , F02C7/20

3. 发明专利

JPS6229835A GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPS6229835A
公开(公告)日：1987-02-07
申请号：JP16599585
申请日：1985-07-29
申请人： HITACHI LTD
发明人： SAKUTA OSAMU , IIZUKA NOBUYUKI , WATANABE KATSUAKI , HIROSE FUMIYUKI , KUNIHIRO MASATSUGU
IPC分类号： F23R3/26 , F23R3/42
摘要： PURPOSE:To eliminate the possibility of producing turbulence in an air flow in a combustion chamber and to eliminate the possibility of yielding early wear due to turbulence and vibration, by a method wherein a control ring driving device is located between an outer cylinder and flow sleeves. CONSTITUTION:Fuel is fed through fuel nozzles 4a and 4b into an inner cylinder 3 forming combustion chambers 3a and 3b. An air feed port 12 is communicated to the peripheral wall of the inner cylinder 3, flow sleeves 2a-3c, surrounding the inner cylinder 3 and forming an air feed space between the inner cylinder 3 and the flow sleeves, and an outer cylinder 1, surrounding the flow sleeves, are provided. A control ring 23 is placed to the outside of the inner cylinder 3, and the opening area of an air feed port 12 is regulated through movement in the direction of an axis of the control ring. Namely, the control ring 23 is moved in the direction of the axis with the aid of a control ring driving device 8. a driving device 8 is situated between the outer cylinder 1 and the flow sleeves 2a-2c of the gas turbine combustor thus formed. this eliminates the possibility of producing turbulence in an air flow in the combustion chamber.

4. 发明专利

JPS5935723A Combustor of gas turbine 失效
标题翻译：燃气轮机组
公开(公告)号：JPS5935723A
公开(公告)日：1984-02-27
申请号：JP14342482
申请日：1982-08-20
申请人： Hitachi Ltd
发明人： KUNIHIRO MASATSUGU , IIZUKA NOBUYUKI
IPC分类号： F23R3/06 , F23R3/26
CPC分类号： F23R3/26
摘要： PURPOSE:To control the distribution of the quantity of air flowing into the burner liner depending upon the driving condition of a gas turbine to carry out a satisfactory combustion by moving a flow sleeve toward the pivotal direction of the burner liner. CONSTITUTION:A flow sleeve 12 is provided in a space formed by the outer cylinder 3 and the liner 4 of a combustor. A hydraulic cylinder 16 for driving is installed and a piston rod and a driving shaft 12a are connected to each other by means of a link 15. The hydraulic cylinder 16 is operated by a hydraulic servo valve 17 of an electromagnetic control system so that the flow sleeve 12 can make reciprocating movements in the horizontal direction. Accordingly, when the flow sleeve 12 is moved in the pivotal direction, the flowpath resistance of compressor exhaust air 1a supplied to a combustion air hole 9 varies as the inner surface of the flow sleeve 12 whereby it is possible to adjust the flow quantity distribution of combustion air and dilution air.
摘要翻译：目的：根据燃气轮机的驱动条件来控制流入燃烧器衬套的空气量的分布，通过使流动套筒向燃烧器衬套的枢转方向移动来实现令人满意的燃烧。构成：流动套管12设置在由外筒3和燃烧器的衬套4形成的空间中。安装用于驱动的液压缸16，并且通过连杆15将活塞杆和驱动轴12a彼此连接。液压缸16由电磁控制系统的液压伺服阀17操作，使得流动套筒12可以在水平方向上进行往复运动。因此，当流动套筒12沿枢转方向移动时，供给到燃烧空气孔9的压缩机排气1a的流路阻力作为流动套筒12的内表面而变化，由此可以调节流量套筒12的流量分布燃烧空气和稀释空气。

5. 发明专利

JPH0345288B2 失效
公开(公告)号：JPH0345288B2
公开(公告)日：1991-07-10
申请号：JP16599585
申请日：1985-07-29
申请人： HITACHI LTD
发明人： SAKUTA OSAMU , IIZUKA NOBUYUKI , WATANABE KATSUAKI , HIROSE FUMYUKI , KUNIHIRO MASATSUGU
IPC分类号： F23R3/26 , F23R3/42

6. 发明专利

JPS629123A GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPS629123A
公开(公告)日：1987-01-17
申请号：JP14477285
申请日：1985-07-03
申请人： HITACHI LTD
发明人： SATO ISAO , ISHIBASHI YOJI , KURODA MICHIO , UCHIYAMA YOSHIHIRO , IIZUKA NOBUYUKI , WADA KATSUO , HIROSE FUMIYUKI , KUNIHIRO MASATSUGU , AKATSU SHIGEYUKI
IPC分类号： F23R3/26
摘要： PURPOSE:To realize low-temperature lean combustion and to enable reduction of the generation of NOX, by a method wherein a cylindrical member, formed toward the wake flow side of a first-stage combustion chamber and having a closed forward end, is mounted in the first-stage combustion chamber. CONSTITUTION:A liner cap 23 is extended through on the upper stream of a first stage combustion chamber 11, and fuel 24 is injected through plural fuel feed holes 26, formed in a fuel injection part 25, into an annular part 28 surrounded with a combustion chamber 27 and a cylindrical member 13. Combustion is progressed as the fuel is mixed with a air flow 29a through an air hole 19 formed in the surroundings of the fuel injection part and air flows 21a-21d for combustion flowing through air holes 21 formed in the combustion chamber 27. Since the fuel injection hole 25 is positioned in the vicinity of the combustion chamber wall 26, the fuel 24 is mixed with the air flows 21-21d rapidly and at a limited annular space part 28 and therefore, a cooling effect by initial air during a combustion process can be produced, and the presence of a high- temperature formation is dissipated, or formation of a hot spot is rendered ineffective, resulting in the possibility to prevent the generation of NOx.

7. 发明专利

JPS61186719A FLAME CONDUCTING TUBE FOR GAS TURBINE 失效
公开(公告)号：JPS61186719A
公开(公告)日：1986-08-20
申请号：JP2630685
申请日：1985-02-15
申请人： HITACHI LTD
发明人： KUNIHIRO MASATSUGU
IPC分类号： F23R3/48
摘要： PURPOSE:To prevent damage by burning of a flame conducting tube, a collar for flame conducting tube and the both ends of the same from taking place by a method wherein a groove is provided in a part of the flame conducting tube, contacting with a combuster, in which a partial amount of delivered air from compressors in the gas turbine is flowed. CONSTITUTION:In both ends unit of the flame conducting tube 8, the stepped weld overlays unit 17 are provided, in which the grooves 18 are fabricated in a direction of axial way of the flame conducting tube 8. Thereby, between space of the collar for flame conducting tube 9 and the flame conducting tube 8, the both face to face each other, is becoming fixedly air flowing paths led by the above multi-grooves 18. Namely, partial amount of air delivered from air-compressors, passing through the grooves 18 and flowing into the liner 2, by which the collar for the flame conducting tube 9 and the both ends of the flame conducting tube 8 are cooling down simultaneously. Accordingly, it is possible to prevent these parts from damage by burning, thereby an operational reliability for gas turbine may be improved a greater extent.

8. 发明专利

JPS5479316A GAS TURBINE CASING 失效
公开(公告)号：JPS5479316A
公开(公告)日：1979-06-25
申请号：JP14503277
申请日：1977-12-05
申请人： HITACHI LTD
发明人： YAMAMOTO TAKEMI , KUROUME HIROSHI , KUNIHIRO MASATSUGU
IPC分类号： F01D25/24
摘要： PURPOSE:To easily repair a cast iron casing, by removing a repair portion of the cast iron casing being subject to damages, corrosion, etc., and by fitting a steel material plate to the portion and by fixing the plate. CONSTITUTION:In a gas turbine casing 2, damage are particularly formed to corner portions at the air suction side 28a and the exhaust side 28b of a 4th stage stator blade groove 28 by the kinetic energy of working fluid. When repairing the damaged locations, the location of interrest is cut 30 as in a dotted line shape, and a blank fitting plate 18 in a steel material, which has a form obtained by mounting cutting allowance to a reconstruction dimension, is fitted at the location and clamping fastened by means of a clamping bolt 19. Then, the fitting plate 18 is worked according to the initial design value and reconstructed. Such a method can rapidly take the repair countermeasure of the casing without changing the accuracy of the original form.

9. 发明专利

JPS5338808A THIS GAS TURBINE CONTROLS CONCENTRATION OF EXHAUSTED NITROGEN OXIDE AT FIXED VALUE 失效
公开(公告)号：JPS5338808A
公开(公告)日：1978-04-10
申请号：JP11301376
申请日：1976-09-22
申请人： HITACHI LTD
发明人： KUNIHIRO MASATSUGU
IPC分类号： F23N5/24 , F02C3/30 , F23C99/00 , F23R3/00
摘要： PURPOSE:To constantly keep the exhaust of NOx at a fixed ratio, by controlling by relating water or steam injection quantity to atmospheric humidity and fuel property, in a gas turbine that reduces the exhaust of NOx by injecting water or steam to a combustor.

10. 发明专利

JPS6172836A Gas turbine injecting water into combustor 失效
标题翻译：燃气涡轮机将水喷入燃烧器
公开(公告)号：JPS6172836A
公开(公告)日：1986-04-14
申请号：JP19392784
申请日：1984-09-18
申请人： Hitachi Ltd
发明人： KUNIHIRO MASATSUGU
IPC分类号： F02C3/30 , F01K21/04
CPC分类号： F01K21/047
摘要： PURPOSE:To equalize an injection quantity of water in each nozzle, by providing an injection water quantity control means in the water injection nozzle provided in each of the plural combustors and regulating said means in accordance with height setting the water injection nozzle, in the case of a water injection multi- can gas turbine. CONSTITUTION:A multi-can gas turbine, arranging a plurality of combustors 2 in an equal pitch on the periphery, sets a fuel nozzle (not shown in the drawing) and a water injection nozzle 8 in each combustor 2. A pump 10 supplies pressurized water to this water injection nozzle 8 through a shut off valve 11, flow regulating valve 12, annular injection water manifold 13 and a supply pipe 14 branching from said manifold 13. Here, mutually different height setting the water injection nozzle 8 causes an unequal water pressure applied to each nozzle 8, and in order to prevent this unequal water pressure the branch supply pipe 14 interposes an orifice 23 and/or a pressure control valve (not shown in the drawing) for regulating a flow in accordance with the height setting the nozzle 8.
摘要翻译：目的：为了均衡每个喷嘴中的水的喷射量，通过在设置在多个燃烧器中的每个喷射喷嘴中设置喷射量控制装置，并根据喷射喷嘴的高度设定来调节所述装置，在这种情况下的注水多罐燃气轮机。构成：在罐体燃烧器2中设置燃料喷嘴（图中未示出）和喷水嘴8的多罐式燃气轮机，以相同的间距排列多个燃烧器2。水通过截流阀11，流量调节阀12，环形注入水歧管13和从所述歧管13分支的供给管14向该注水喷嘴8供水。这里，相互不同的设置水喷嘴8的高度导致不相等的水施加到每个喷嘴8的压力，并且为了防止这种不相等的水压，分支供应管14插入孔23和/或压力控制阀（图中未示出），用于根据高度设定来调节流量喷嘴8。

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