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61. 发明专利

JPS6257892B2 失效
公开(公告)号：JPS6257892B2
公开(公告)日：1987-12-03
申请号：JP17460182
申请日：1982-10-06
申请人： HITACHI LTD
发明人： HIROSE FUMYUKI , IIZUKA NOBUYUKI
IPC分类号： B23K9/04 , B23K31/00 , F23R3/00 , F23R3/06

62. 发明专利

JPS6253583B2 失效
公开(公告)号：JPS6253583B2
公开(公告)日：1987-11-11
申请号：JP15260382
申请日：1982-09-03
申请人： HITACHI LTD
发明人： MORI SHIGENOBU , KASHIMURA TETSUO , FUKUI HIROSHI , YANAI YOSHIMI , IIZUKA NOBUYUKI
IPC分类号： C22C19/05 , F01D25/00 , F23R3/42
摘要： A gas turbine combustor defines a combustion chamber for combustion of injected fuel and for introduction of the resultant hot combustion gas to nozzles of a gas turbine. The combustor has parts subjected to hot combustion gas during operation of the turbine, such as a cap connected to a fuel injection nozzle, a liner connected to the cap, and a transition piece connected to the liner. These parts subjected to the hot combustion gas are made from an alloy having a composition consisting essentially of 0.02 to 0.2 wt % of C, 15 to 30 wt % of Cr and 10 to 25 wt % of W.

63. 发明专利

JPS62211387A PRODUCTION OF CERAMIC COATED HEAT RESISTANT MEMBER 失效
公开(公告)号：JPS62211387A
公开(公告)日：1987-09-17
申请号：JP5248886
申请日：1986-03-12
申请人： HITACHI LTD
发明人： IIZUKA NOBUYUKI , HIROSE FUMIYUKI , ASAHI NAOTATSU , KOJIMA YOSHIYUKI
IPC分类号： C23C28/00 , F23R3/00
摘要： PURPOSE:To prevent the cracking and exfoliating of a ceramic coating layer by forming an alloy bond layer on a metallic base material, forming the ceramic coating layer via an Al layer on the bond layer and converting the Al layer to an oxide layer. CONSTITUTION:The bond layer of the alloy (essentially consisting of either Co or Ni and contg. 10-30wt% Cr, 5-30wt% Al, etc.) which is higher in the resistance to high-temp. oxidation and high-temp. corrosion than the base material essentially consisting of at least one kind among Ni, Co and Fe is formed to 0.03-0.5mm thickness on the above-mentioned base material by plasma spraying in an atmosphere of atm oxygen partial pressure. The Al coating layer is formed on such bond layer by a pack method and is heated for 1-200hr at 600-1,200 deg.C in the atm. to form the Al oxide layer to 0.1-20mu thickness. The ceramic coating layer which consists essentially of ZrO2 and contains any one among CaO, MgO and Y2O3 or the combination thereof is formed to 0.05-0.8mm thickness on such Al oxide layer by plasma spraying in the atm. The heat resistant member useful for a gas turbine member is thus obtd.

64. 发明专利

JPS62211386A CERAMIC COATED HEAT RESISTANT MEMBER AND ITS PRODUCTION 失效
公开(公告)号：JPS62211386A
公开(公告)日：1987-09-17
申请号：JP5248486
申请日：1986-03-12
申请人： HITACHI LTD
发明人： IIZUKA NOBUYUKI , HIROSE FUMIYUKI , ASAHI NAOTATSU , KOJIMA YOSHIYUKI
IPC分类号： C23C4/08 , C23C4/10 , C23C28/00 , F23R3/00
摘要： PURPOSE:To produce a titled heat resistant member having excellent bond strength by forming a bond layer essentially consisting of Co, etc., via a boundary layer consisting of a compd. on a base material essentially consisting of Ni, etc., and forming a ceramic coating layer essentially consisting of ZrO via an oxide layer essentially consisting of Al on the bond layer. CONSTITUTION:The bond layer 2 of the alloy which contains either Ni or Co as the essential component, contains Cr and Al, and is higher in the resistance to high-temp. oxidation and high-temp. corrosion than the base material 3 essentially consisting of at least one kind of Ni, Co and Fe is provided to 0.03-0.5mm thickness on the above-mentioned base material 3 via the boundary layer 5 which consists of any one among oxide, nitride, and carbide and has 0.1-20mu thickness. The coating layer 1 consisting of the ceramics which consists essentially of ZrO2 and contains any one among CaO, MgO, and Y2O3 is formed on such bond layer 2 via the oxide layer 4 which consists essentially of Al and has 0.1-20mu thickness. The ceramic coated heat resistant member to be used in high-temp. or high-temp. corrosive environment is thus obtd.

65. 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

66. 发明专利

JPS62175524A COMBUSTION UNIT FOR GAS TURBINE 失效
公开(公告)号：JPS62175524A
公开(公告)日：1987-08-01
申请号：JP23795086
申请日：1986-10-08
申请人： HITACHI LTD
发明人： IIZUKA NOBUYUKI , KUNO KATSUKUNI , HIROSE FUMIYUKI , KIRIKAMI SEIICHI , KURODA MICHIO , WADA KATSUO , SATO ISAO , ISHIBASHI YOJI , UCHIYAMA YOSHIHIRO , INOSE HIROSHI
IPC分类号： F23R3/00 , F02C9/18 , F23R3/04 , F23R3/26 , F23R3/28 , F23R3/34
摘要： PURPOSE:To make stable combustion in a combustion unit for gas turbine of a gaseoud fuel two-stage combustion type by a method wherein second-stage combustion air is extracted through a flow rate adjusting means to the non- combustion side from between the second-stage combustion air intake port and the second-stage fuel nozzle. CONSTITUTION:An extracting port 41 is formed between the air from the second air supplying port 20 and the second-stage fuel mixing part 33, a part of the second-stage air is controlled by a flow rate adjusting valve 100 and then extracted. This flow rate adjusting valve 100 is controlled by a controller 101 in accordance with load. With this arrangement, the air flow rate is extracted to the second-stage from the time of feeding of second-stage combustion volume and thus a proper volume can be attained in respect to the second-stage fuel and so stable combustion can always be maintained.

67. 发明专利

JPS62168932A GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPS62168932A
公开(公告)日：1987-07-25
申请号：JP792586
申请日：1986-01-20
申请人： HITACHI LTD
发明人： KUMADA KAZUHIKO , IIZUKA NOBUYUKI
IPC分类号： F02C7/20
摘要： PURPOSE:To promote the improvement of cooling efficiency, by providing a flow sleeve outside a transition piece and fixing the flow sleeve onto a mounting base for supporting the transition piece. CONSTITUTION:A flow sleeve 6 is provided outside a transition piece 5. A mounting plate 15 is provided on a mounting base 11 for supporting the transition piece, fixing the flow sleeve 6. The mounting base 11 is fixed to a casing 14 by a bracket 12. In this way, cooling efficiency of the transition piece can be improved by enabling a clearance between the transition piece and the flow sleeve to be held to a fixed amount.

68. 发明专利

JPS62166210A VAPOR INJECTION NOZZLE OF GAS TURBINE BURNER OR THE LIKE 失效
公开(公告)号：JPS62166210A
公开(公告)日：1987-07-22
申请号：JP792786
申请日：1986-01-20
申请人： HITACHI LTD
发明人： ISHIBASHI YOJI , UCHIYAMA YOSHIHIRO , IWAI KAZUMI , TSUKAHARA SATOSHI , HAYASHI NORIYUKI , IIZUKA NOBUYUKI , WADA KATSUO , KUMADA KAZUHIKO
IPC分类号： F23R3/28 , F23C99/00
摘要： PURPOSE:To improve the unstability of flame and increase the NOx reducing effect by directly supplying vapor into a burner liner without mixing vapor with combustion air. CONSTITUTION:While flowing along an annular flowpath formed by a burner liner 3 and a burner outer cylinder 1 toward the head side of the burner, combustion air 100 is supplied to a burner 22 as primary combustion air 101, burner liner cap cooling air 104 and turning air 102. An oil fuel 110 and a gas fuel 120 injected through a fuel nozzle 10 are stabilized by a recirculation flow 30 induced by the turning air flow 102, and the temperature of flame raised to the highest in a recirculation flow region 40 by the primary combustion air 101. A vapor jet 131 is a jet which is discontinuous in the peripheral direction and only lowers the oxygen content of turning air locally in the vicinity of a fuel nozzle outlet, and deterioration of the flame holding function is small. Vapor flows while mixing with turning air toward and downward, and the NOx reducing effect becomes high through cooling the high-temperature flame portion in the recirculation region 40.

69. 发明专利

JPS6298121A CATALYTIC COMBUSTION EQUIPMENT 失效
公开(公告)号：JPS6298121A
公开(公告)日：1987-05-07
申请号：JP23733385
申请日：1985-10-25
申请人： HITACHI LTD
发明人： IWAI KAZUMI , UCHIYAMA YOSHIHIRO , WADA KATSUO , IIZUKA NOBUYUKI , OSHIMA RYOICHIRO
IPC分类号： F23R3/40
摘要： PURPOSE:To obtain a combustion gas having NOx content nearly as low as that attained by a catalytic combustion, by mixing fuels required for a heat retainer located downstream a catalyst layer into combustion gas produced by a catalytic reaction at a preceding stage, and providing a means for controlling a flow rate of air mixed thereinto. CONSTITUTION:Premixing gases 3 are mixed and preheated in a premixing chamber 17 and led to a first stage of catalyst 7. As the catalyst 7 is preheated to above a temperature of activation, the premixing gas guided in react there and flow into a combustion chamber 18 in the forms of combustion gas. The temperature of combustion gas at that time is approximately equal to a temperature of heat resistance of the catalyst. A heat retainer 8 receives heat from the combustion gas generated by the first stage of catalyst when fuel is not supplied to the upstream side of said heat retainer and becomes a high-temperature member. To obtain a temperature of gas higher than a combustion gas obtainable by a catalytic combustion reaction at the first stage, fuels having such quantity that corresponds to a required temperature rise are supplied into the combustion gas through a fuel supply passage 10. In this case, amount of combustion air is made less than the theoretical amount of air required for the flow rate of supplied fuel or none of said air is supplied.

70. 发明专利

JPS6213498B2 失效
公开(公告)号：JPS6213498B2
公开(公告)日：1987-03-26
申请号：JP16834379
申请日：1979-12-26
申请人： HITACHI LTD
发明人： KUROSAWA SOICHI , IIZUKA NOBUYUKI
IPC分类号： F02C9/00 , F02C9/28

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