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1. 发明专利

CA2371691A1 AN AIR-COOLED GAS TURBINE EXHAUST CASING 未知
公开(公告)号：CA2371691A1
公开(公告)日：2002-09-05
申请号：CA2371691
申请日：2002-02-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： HAKODA HIRONOBU , HASHIMOTO YUKIHIRO , CHIKAMI RINTARO , AKAGI KOUICHI
IPC分类号： F01D9/02 , F01D9/04 , F01D25/14 , F01D25/26 , F01D25/30 , F02C7/18
摘要： Cooling air passages are formed in the wall of an exhaust casing connected to a turbine casing of a gas turbine. Low pressure air extracted from the low pressure stage of an air compressor of the gas turbine is supplied to the cooling air passage from the portion near the downstream end of the exhaust casing. Cooling air flows through the cooling air passage toward the upstream end of the exhaust casing and then flows into an annular cavity formed in the turbine casing near the portion corresponding to the last turbine stage. Therefore, the metal temperature of the exhaust casing near the upstream end (near the joint between the exhaust casing and the turbine casing) is lowered by the cooling air and, as cooling air of a relatively high temperature is supplied to the cavity in the turbine casing, the metal temperature of the turbine casing near the downstream end becomes higher than that provided by a conventional cooling system. Therefore, the difference between the metal temperatures of the turbine casing and the exhaust casing becomes very small and the thermal stress exerted on the exhaust casing due to the temperature difference can be largely reduced.

2. 发明专利

DE60203959T2 未知
公开(公告)号：DE60203959T2
公开(公告)日：2006-02-23
申请号：DE60203959
申请日：2002-02-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： HASHIMOTO YUKIHIRO , HAKODA HIRONOBU , AKAGI KOUICHI , CHIKAMI RINTARO
IPC分类号： F01D9/02 , F01D9/04 , F01D25/14 , F01D25/26 , F01D25/30 , F02C7/18
摘要： Cooling air passages are formed in the wall of an exhaust casing connected to a turbine casing of a gas turbine. Low pressure air extracted from the low pressure stage of an air compressor of the gas turbine is supplied to the cooling air passage from the portion near the downstream end of the exhaust casing. Cooling air flows through the cooling air passage toward the upstream end of the exhaust casing and then flows into an annular cavity formed in the turbine casing near the portion corresponding to the last turbine stage. Therefore, the metal temperature of the exhaust casing near the upstream end (near the joint between the exhaust casing and the turbine casing) is lowered by the cooling air and, as cooling air of a relatively high temperature is supplied to the cavity in the turbine casing, the metal temperature of the turbine casing near the downstream end becomes higher than that provided by a conventional cooling system. Therefore, the difference between the metal temperatures of the turbine casing and the exhaust casing becomes very small and the thermal stress exerted on the exhaust casing due to the temperature difference can be largely reduced.

3. 发明专利

HK1063343A1 FLANGED HOLLOW STRUCTURE 未知
公开(公告)号：HK1063343A1
公开(公告)日：2004-12-24
申请号：HK04106119
申请日：2004-08-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIMIZU HIROSHI , KONDO MITSURU , HAKODA HIRONOBU , HASHIMOTO YUKIHIRO , TANAKA KATSUNORI , NAKAMURA SOUSUKE
IPC分类号： F23R3/42 , F01D20060101 , F01D9/02 , F02C7/00 , F16L20060101 , F16L23/00 , F16L23/24 , F23R20060101
摘要： The present invention provides a hollow structure with at least one flange which can eliminate the possibility of creating crackings due to the thermal fatigue, thereby improving the durability thereof. A hollow structure with an flange according to the present invention includes at least one annular flange fixedly attached around the hollow structure which has a temperature gradient in the direction of the thickness of the wall thereof, wherein said at least one annular flange including an outer portion formed of a metal material having a coefficient of linear expansion greater than that of the metal material forming another portion of said at least one annular flange.

4. 发明公开

EP1400755A4 FLANGED HOLLOW STRUCTURE 有权
标题翻译：法兰空心
公开(公告)号：EP1400755A4
公开(公告)日：2007-05-09
申请号：EP02738898
申请日：2002-07-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIMIZU HIROSHI , KONDO MITSURU , HAKODA HIRONOBU , HASHIMOTO YUKIHIRO , TANAKA KATSUNORI , NAKAMURA SOUSUKE
IPC分类号： F23R3/42 , F01D9/02 , F02C7/00 , F16L23/00 , F16L23/24
CPC分类号： F01D9/023 , F05D2260/94 , F05D2260/941 , F05D2300/50212 , F16L23/00 , F16L23/24 , F23R2900/00005 , Y10T403/64
摘要： A flanged hollow structure capable of increasing a structural integrity by preventing cracking due to thermal fatigue from occurring around a flange, comprising the annular flange fixed to the outer peripheral surface thereof causing a temperature difference in the direction of plate thickness thereof, wherein the annular flange is characterized in that a metal material having a linear expansion coefficient larger than the linear expansion coefficient of the metal material around the inner edge of the annular flange is provided along the outer edge of the annular flange.

5. 发明专利

DE60238984D1 ANGEFLANSCHTER HOHLKÖRPER 未知
公开(公告)号：DE60238984D1
公开(公告)日：2011-03-03
申请号：DE60238984
申请日：2002-07-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIMIZU HIROSHI , KONDO MITSURU , HAKODA HIRONOBU , HASHIMOTO YUKIHIRO , TANAKA KATSUNORI , NAKAMURA SOUSUKE
IPC分类号： F23R3/42 , F01D9/02 , F02C7/00 , F16L23/00 , F16L23/24

6. 发明专利

CA2421802C HOLLOW STRUCTURE WITH FLANGE 未知
公开(公告)号：CA2421802C
公开(公告)日：2007-08-21
申请号：CA2421802
申请日：2002-07-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： KONDO MITSURU , SHIMIZU HIROSHI , HASHIMOTO YUKIHIRO , TANAKA KATSUNORI , NAKAMURA SOUSUKE , HAKODA HIRONOBU
IPC分类号： F23R3/42 , F01D9/02 , F02C7/00 , F16L23/00 , F16L23/24
摘要： The present invention provides a hollow structure with at least one flange which can eliminate the possibility of creating crackings due to the thermal fatigue, thereby improving the durability thereof. A hollow structure with an flange according to the present invention includes at least one annular flange fixedly attached around the hollow structure which has a temperature gradient in the direction of the thickness of the wall thereof, wherein said at least one annular flange including an outer portion formed of a metal material having a coefficient o f linear expansion greater than that of the metal material forming another portion of said at least one annular flange.

7. 发明专利

CA2371691C AN AIR-COOLED GAS TURBINE EXHAUST CASING 未知
公开(公告)号：CA2371691C
公开(公告)日：2005-08-16
申请号：CA2371691
申请日：2002-02-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： HASHIMOTO YUKIHIRO , HAKODA HIRONOBU , AKAGI KOUICHI , CHIKAMI RINTARO
IPC分类号： F01D9/02 , F01D9/04 , F01D25/14 , F01D25/26 , F01D25/30 , F02C7/18
摘要： Cooling air passages are formed in the wall of an exhaust casing connected to a turbine casing of a gas turbine. Low pressure air extracted from the low pressure stage of an air compressor of the gas turbine is supplied to the cooling air passage from the portion near the downstream end of the exhaust casing. Cooling air flows through the cooling air passage toward the upstream end of the exhaust casing and then flows into an annular cavity formed in the turbine casing near the portion corresponding to the last turbine stage. Therefore, the metal temperature of the exhaust casing near the upstream end (near the joint between the exhaust casing and the turbine casing) is lowered by the cooling air and, as cooling air of a relatively high temperature is supplied to the cavity in the turbine casing, the metal temperature of the turbine casing near the downstream end becomes higher than that provided by a conventional cooling system. Therefore, the difference between the metal temperatures of the turbine casing and the exhaust casing becomes very small and the thermal stress exerted on the exhaust casing due to the temperature difference can be largely reduced.

8. 发明专利

DE60203959D1 未知
公开(公告)号：DE60203959D1
公开(公告)日：2005-06-09
申请号：DE60203959
申请日：2002-02-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： HASHIMOTO YUKIHIRO , HAKODA HIRONOBU , AKAGI KOUICHI , CHIKAMI RINTARO
IPC分类号： F01D9/02 , F01D9/04 , F01D25/14 , F01D25/26 , F01D25/30 , F02C7/18
摘要： Cooling air passages are formed in the wall of an exhaust casing connected to a turbine casing of a gas turbine. Low pressure air extracted from the low pressure stage of an air compressor of the gas turbine is supplied to the cooling air passage from the portion near the downstream end of the exhaust casing. Cooling air flows through the cooling air passage toward the upstream end of the exhaust casing and then flows into an annular cavity formed in the turbine casing near the portion corresponding to the last turbine stage. Therefore, the metal temperature of the exhaust casing near the upstream end (near the joint between the exhaust casing and the turbine casing) is lowered by the cooling air and, as cooling air of a relatively high temperature is supplied to the cavity in the turbine casing, the metal temperature of the turbine casing near the downstream end becomes higher than that provided by a conventional cooling system. Therefore, the difference between the metal temperatures of the turbine casing and the exhaust casing becomes very small and the thermal stress exerted on the exhaust casing due to the temperature difference can be largely reduced.

9. 发明专利

CA2421802A1 HOLLOW STRUCTURE WITH FLANGE 未知
公开(公告)号：CA2421802A1
公开(公告)日：2003-03-07
申请号：CA2421802
申请日：2002-07-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： TANAKA KATSUNORI , NAKAMURA SOUSUKE , SHIMIZU HIROSHI , HASHIMOTO YUKIHIRO , KONDO MITSURU , HAKODA HIRONOBU
IPC分类号： F23R3/42 , F01D9/02 , F02C7/00 , F16L23/00 , F16L23/24
摘要： A flanged hollow structure capable of increasing a structural integrity by preventing cracking due to thermal fatigue from occurring around a flange, comprising the annular flange fixed to the outer peripheral surface thereof causing a temperature difference in the direction of plate thickness thereof , wherein the annular flange is characterized in that a metal material having a linear expansion coefficient larger than the linear expansion coefficient of the metal material around the inner edge of the annular flange is provided along the outer edge of the annular flange.

10. 发明专利

JP2003014237A Flanged hollow structure 有权
标题翻译：法兰中空结构
公开(公告)号：JP2003014237A
公开(公告)日：2003-01-15
申请号：JP2001198916
申请日：2001-06-29
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： SHIMIZU HIROSHI , KONDO MITSURU , HAKODA HIRONOBU , HASHIMOTO YUKIHIRO , TANAKA KATSUNORI , NAKAMURA SOSUKE
IPC分类号： F23R3/42 , F01D9/02 , F02C7/00 , F16L23/00 , F16L23/24
CPC分类号： F01D9/023 , F05D2260/94 , F05D2260/941 , F05D2300/50212 , F16L23/00 , F16L23/24 , F23R2900/00005 , Y10T403/64
摘要： PROBLEM TO BE SOLVED: To provide a flanged hollow structure, in which structural integrity is improved by preventing cracks from generating consequent upon thermal fatigue around a flange. SOLUTION: The hollow structure has an annular flange fixed around the outer surface thereof and temperature difference is generated in the direction of the plate thickness. Along the outside edge of the flange, there is provided with a metal material having a linear expansion coefficient larger than that of a metal material in the periphery of the inside edge of the flange.
摘要翻译：要解决的问题：提供一种法兰中空结构，其中通过防止围绕凸缘的热疲劳产生裂纹而提高结构完整性。解决方案：中空结构具有围绕其外表面固定的环形凸缘，并且在板厚方向上产生温差。沿凸缘的外边缘设置有在凸缘的内边缘周边具有大于金属材料的线性膨胀系数的金属材料。

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