EP2806113A1 - Carter d'échappement d'une turbomachine et procédé d'assemblage du boîtier d'échappement dans la turbomachine - Google Patents
Carter d'échappement d'une turbomachine et procédé d'assemblage du boîtier d'échappement dans la turbomachine Download PDFInfo
- Publication number
- EP2806113A1 EP2806113A1 EP13169126.3A EP13169126A EP2806113A1 EP 2806113 A1 EP2806113 A1 EP 2806113A1 EP 13169126 A EP13169126 A EP 13169126A EP 2806113 A1 EP2806113 A1 EP 2806113A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust casing
- casing
- bearing housing
- damping element
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
- F01D25/162—Bearing supports
- F01D25/164—Flexible supports; Vibration damping means associated with the bearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
Definitions
- the invention relates to an exhaust casing of a turbo-machine. More specifically, the invention relates to vibrations in the exhaust casing of the turbo-machine.
- a turbo-machine Whenever a turbo-machine is functional, it has a tendency to vibrate due to exciting forces on various parts of the turbo-machine. Such vibrations may be dangerous to the functioning of the turbo-machine and may lead to damage of turbine. More specifically, the vibrations of exhaust casing system may lead to malfunctioning, and even failure of rotor placed into bearing housing of the exhaust casing system. Available possible ways to avoid such vibration of exhaust casing is to employ checks through prior computer simulations, which are not that reliable, especially with various combinations of parts.
- the object of the invention is to manage vibrations of an exhaust casing system of a turbo-machine.
- the object of the invention is achieved by an exhaust casing system of turbo-machine of claim 1 and a method for assembling the exhaust casing into the turbo-machine according to claim 9.
- the exhaust casing system includes a bearing housing, an opening into the exhaust casing, and a housing damping element.
- the bearing housing includes bearings, and is mechanically coupled to a rotor of the turbo-machine.
- the opening allows access from an outer environment into the exhaust casing up to the bearing housing.
- the housing damping element elongates through the opening and mechanically couples a surface in the outer environment and a surface of the bearing housing.
- the housing damping element resistively compresses or decompresses whenever the exhaust casing vibrates along a direction substantially parallel to the elongation of damping element to mechanically couple the surface in the outer environment and the surface of the bearing housing. This helps to reduce vertical vibrations of the exhaust casing system.
- the opening provides access to a set of oil pipes leading to the bearing housing. This allows for usage of already available opening of exhaust casing system to be used for placing the housing damping element between the external environment and the bearing housing.
- the exhaust casing system includes a casing damping element which mechanically couples the surface in the outer environment and a part of the exhaust casing other than the bearing housing.
- the casing damping element resistively compresses or decompresses whenever the exhaust casing vibrates. This provides for a way to further dampen the vibrations of the exhaust casing.
- the part of the exhaust casing other than the bearing housing is an outer surface of the exhaust casing. This provides an easy way for coupling the surface in the outer environment and the part of the exhaust casing other than the bearing housing through the casing damping element. It also eases maintenance of the exhaust casing for replacing the casing damping element.
- the exhaust casing system includes a plurality of casing damping elements which mechanically couples the surface in the outer environment and the other part of the exhaust casing and resistively compresses or decompresses whenever the exhaust casing vibrates. Presence of couplings of the surface in the outer environment and the other part of the exhaust casing by multiples casing damping element further reduces the vibrations of the exhaust casing.
- the surface in the outer environment is a base frame of the turbo-machine.
- Creating mechanical coupling between a base frame of turbo-machine and the exhaust casing provides for reduction of vibrations of the exhaust casing without support from elements external to the turbo-machine.
- FIG 1 and FIG 2 together for describing a exhaust casing system of a turbo-machine.
- the exhaust casing 1 of a turbo-machine includes a bearing housing 2, an opening 5 into the exhaust casing 1 and a damping element 6.
- the bearing housing 2 includes bearings 3 and is mechanically coupled to a rotor 4 of the turbo-machine for allowing sliding of a shaft of the rotor 4 onto bearing surface.
- the opening 5 allows access to the housing element 6 from an outer environment into the exhaust casing 1 up to the bearing housing 2.
- the housing damping element 6 is assembled to the exhaust casing 1 by elongating through the opening 5 to mechanically couple a surface 7 in the outer environment and a surface of the bearing housing 2.
- the housing damping element 6 resistively compresses or decompresses whenever the exhaust casing 1 vibrates to providing damping effect to reduce vibrations of the exhaust casing 1.
- the surface 7 in the outer environment is a base frame of the turbo-machine.
- the surface 7 in the outer environment can be ground or platform on which the turb0-machine is placed.
- the turbo-machine While the turbo-machine is functional, it creates vibrations of exhaust casing 1. More specifically, vertical vibrations are required to be taken care of, as the vertical vibrations may cause dislocation of the rotor 4 or may lead to fracture of the rotor 4. To take care of the vertical vibrations, the housing damping element 6 compresses or decompresses, and damps vibrations whenever the exhaust casing 1 vibrates along a direction substantially parallel to the elongation of housing damping element 6 to mechanically couple the surface 7 in the outer environment and the surface of the bearing housing 2.
- openings 5 of the exhaust casing 1 can be used, like openings which allow oil pipes 8 to reach to the bearing housing 8 can also be used for allowing access to the housing damping element.
- another opening in the exhaust casing 1 can be created to allow access to the housing damping element 6 separately.
- a casing damping element 9 is also provided which mechanically couples the surface 7 in the outer environment and a part 10 of the exhaust casing 1 other than the bearing housing 2.
- the casing damping element 9 resistively compresses or decompresses whenever the exhaust casing 1 vibrates.
- the part 10 of the exhaust casing 1 other than the bearing housing 2 is an outer surface of the exhaust casing 1. More specifically, the outer surface of the exhaust casing lies at an inlet side 11 of the exhaust casing 1. In an alternate embodiment, the outer surface of the exhaust casing can lie on the exhaust side of the exhaust casing.
- the part 10 of the exhaust casing 1 need not be the outer surface of the exhaust casing; rather it can be any part internal to the exhaust casing.
- the exhaust casing 1 includes plurality of casing damping elements 9 which mechanically couple the outer surface 7 in the outer environment and the part 10 of the exhaust casing 1.
- the casing damping elements 9 resistively compresses or decompresses whenever the exhaust casing 1 vibrates. This further helps to dampen the vibrations of the exhaust casing 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13169126.3A EP2806113A1 (fr) | 2013-05-24 | 2013-05-24 | Carter d'échappement d'une turbomachine et procédé d'assemblage du boîtier d'échappement dans la turbomachine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13169126.3A EP2806113A1 (fr) | 2013-05-24 | 2013-05-24 | Carter d'échappement d'une turbomachine et procédé d'assemblage du boîtier d'échappement dans la turbomachine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2806113A1 true EP2806113A1 (fr) | 2014-11-26 |
Family
ID=48468182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13169126.3A Withdrawn EP2806113A1 (fr) | 2013-05-24 | 2013-05-24 | Carter d'échappement d'une turbomachine et procédé d'assemblage du boîtier d'échappement dans la turbomachine |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2806113A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3309367A1 (fr) * | 2016-10-13 | 2018-04-18 | Doosan Heavy Industries & Construction Co., Ltd. | Turbine à gaz |
CN108561197A (zh) * | 2017-12-22 | 2018-09-21 | 东方电气集团东方汽轮机有限公司 | 透平机械转子支撑结构 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB739474A (en) * | 1954-03-15 | 1955-10-26 | Blackburn & Gen Aircraft Ltd | Improvements in or relating to gas turbine engines |
US2869941A (en) * | 1957-04-29 | 1959-01-20 | United Aircraft Corp | Turbine bearing support |
FR1437906A (fr) * | 1964-06-24 | 1966-05-06 | United Aircraft Corp | Support de roulement pour turbomachines à gaz |
DE19842811A1 (de) * | 1998-09-18 | 1999-07-15 | Siemens Ag | Anordnung mit einem Stirnlager in einem axialen Abströmraum, insbesondere einer Dampfturbinenanlage |
US6030176A (en) * | 1995-07-19 | 2000-02-29 | Siemens Aktiengesellschaft | Structural member for an exhaust-gas connection of a turbomachine, in particular a steam turbine, and set of at least two structural members |
US20100278465A1 (en) * | 2009-04-29 | 2010-11-04 | Steven Arlen Klusman | Compliant spherical bearing mount |
EP2261468A1 (fr) * | 2008-03-28 | 2010-12-15 | Mitsubishi Heavy Industries, Ltd. | Turbine a gaz |
US20130064647A1 (en) * | 2011-09-09 | 2013-03-14 | Mitsubishi Heavy Industries, Ltd. | Gas turbine |
-
2013
- 2013-05-24 EP EP13169126.3A patent/EP2806113A1/fr not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB739474A (en) * | 1954-03-15 | 1955-10-26 | Blackburn & Gen Aircraft Ltd | Improvements in or relating to gas turbine engines |
US2869941A (en) * | 1957-04-29 | 1959-01-20 | United Aircraft Corp | Turbine bearing support |
FR1437906A (fr) * | 1964-06-24 | 1966-05-06 | United Aircraft Corp | Support de roulement pour turbomachines à gaz |
US6030176A (en) * | 1995-07-19 | 2000-02-29 | Siemens Aktiengesellschaft | Structural member for an exhaust-gas connection of a turbomachine, in particular a steam turbine, and set of at least two structural members |
DE19842811A1 (de) * | 1998-09-18 | 1999-07-15 | Siemens Ag | Anordnung mit einem Stirnlager in einem axialen Abströmraum, insbesondere einer Dampfturbinenanlage |
EP2261468A1 (fr) * | 2008-03-28 | 2010-12-15 | Mitsubishi Heavy Industries, Ltd. | Turbine a gaz |
US20100278465A1 (en) * | 2009-04-29 | 2010-11-04 | Steven Arlen Klusman | Compliant spherical bearing mount |
US20130064647A1 (en) * | 2011-09-09 | 2013-03-14 | Mitsubishi Heavy Industries, Ltd. | Gas turbine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3309367A1 (fr) * | 2016-10-13 | 2018-04-18 | Doosan Heavy Industries & Construction Co., Ltd. | Turbine à gaz |
US10352192B2 (en) | 2016-10-13 | 2019-07-16 | Doosan Heavy Industries Contruction Co., Ltd | Gas turbine |
CN108561197A (zh) * | 2017-12-22 | 2018-09-21 | 东方电气集团东方汽轮机有限公司 | 透平机械转子支撑结构 |
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18D | Application deemed to be withdrawn |
Effective date: 20150527 |