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
  • F01D25/04—Antivibration arrangements
• • 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

Definitions

• the invention relates to a device and a method for supporting a flow rotating machine, in particular a gas turbine arrangement, in which a rotor unit is rotatably mounted within a stationary outer housing, with at least two axially spaced from each other to the outer housing spaced-apart supports for weight absorption of the flow rotating machine, on the one hand middle or directly hinged to the outer housing and on the other hand, medium or directly supported on a foundation.
• Powerful gas turbine assemblies have, depending on the performance, a rotor unit typically with lengths of about 10 m, along which a compressor unit, the combustion chamber and at least one turbine stage are arranged.
• a second combustion chamber and a further, subsequent turbine blading are additionally provided along the rotor unit.
• Such, mainly integrally manufactured rotor units are completely enclosed by a stationary housing, which is supported for stable storage of the entire gas turbine assembly via a plurality of supports against a foundation.
• FIG Figure 2a shows a schematic cross section through a gas turbine arrangement
• Figure 2b shows a perspective overview of a gas turbine arrangement and the supports required for storage.
• a substantially tubular gas turbine arrangement 1 a foundation 2 vertically uplifting support struts 3, on the one hand firmly connected to the foundation 2 and on the other hand abut against corresponding Abstützkonturen 4 of the housing 5.
• a plurality of support struts 3, which are axially spaced from the gas turbine assembly 1, for a secure spatial storage of the gas turbine assembly 1 against a full weight of the gas turbine receiving foundation 2 serve.
• the invention is based on the object, a device for supporting a flow rotating machine, in particular a gas turbine arrangement in which a rotor unit is rotatably mounted within a stationary outer housing, with at least two in the axial longitudinal extent to the outer housing spaced from each other supports for weight absorption of the flow rotating machine, on the one hand medium - Or hinged directly on the outer housing and on the other hand medium or directly supported on a foundation supporting base frame, such form that decisive influence on the developing vibrational structural resonance behavior of an operating gas turbine assembly is to be taken, the gas turbine assembly to store as little as possible vibration is.
• the measures required for this purpose should be able to be carried out structurally simple and, if possible, after installation of the gas turbine arrangement on site quickly and without great assembly-technical effort.
• claim 13 is a method for vibration-reduced storage of a flow rotating machine, in particular a gas turbine arrangement.
• the concept of the invention advantageously further features are the subject of the dependent claims and the description in particular with reference to the embodiment refer.
• a device for supporting a flow-rotating machine in particular a gas turbine arrangement according to the features of the preamble of claim 1, is characterized in that at least one support provides at least one support surface, which is supported exclusively in partial areas on at least two support plate elements and the at least one support surface of the Support via the support plate elements with the base frame in operative connection occurs.
• the solution according to the invention allows Nachjustier ashamed the storage of a fully assembled on-site gas turbine arrangement, so that only by targeted arranging so-called. Abstützplattenetti over which ultimately at least proportionately the weight of the entire gas turbine arrangement acts on a supporting base frame, which influence the gas turbine individually to own vibration behavior can be taken.
• the inherent inherent elasticity inherent in the support in particular in the area of the support surface which is arranged so as to be cantilevered by the support plate elements, is utilized to determine the resonant vibration behavior of the gas turbine assembly in operation to influence specifically.
• the stiffness or elasticity of the coupling between the support and the base frame can be varied almost continuously and thus the position of the resonance frequencies of the structure and Rotor unit of the gas turbine engine specifically vary.
• the replacement or adapted to the respective structural resonances positioning of the respective Abstützplattenimplantation relative to the support surface of the support is made in a short time on site with simple technical means, so that vibration delays in commissioning the gas turbine assembly can be avoided or at least limited to a minimum can.
• This requires only a suitably trained lifting device, which is designed for load-bearing of the gas turbine arrangement and which allows a brief lifting of the gas turbine arrangement in the region of the support, so that the otherwise loosely present between the foundation and the support support plate elements in a suitable manner relative to the support surface of the support can be moved.
• the storage according to the solution is based on a solution-based method for the vibration-reduced storage of a flow rotary machine, in particular, a gas turbine arrangement in which a rotor unit is rotatably mounted within a stationary outer housing, with at least two axially spaced from each other to the outer housing spaced-apart supports for weight absorption of the flow rotating machine, on the one hand medium or directly hinged to the outer housing and on the other hand, middle or immediate support a base frame, which is characterized in that at least one support a horizontally oriented support surface is provided which is arranged vertically opposite to a support surface provided on the base frame.
• At least two support plate elements arranged laterally spaced from each other are introduced such that the weight force of the flow rotation machine proportionally acts completely on the support frame elements on the base frame and the flow rotating machine put into operation stores as little vibration as possible.
• the method can be used repeatedly in a suitable manner in order to adapt the bearing to the changed vibration behavior.
• the support plate elements are introduced according to the number and arrangement between the support and support surfaces such that the support surface of the support provides free and with respect to the support surface spaced surface areas that are suitably dimensioned swinging.
• the storage as elastic as possible form, so only two small dimensioned support plate elements are provided.
• the device concept according to the invention is used for the vibration-free or vibration-free mounting of a flow-rotating machine, in particular a gas turbine arrangement.
• FIG. 2 a, b cross-section through a known gas turbine arrangement and perspective view.
• FIGS. 1a to c all show schematic cross-sectional representations through a gas turbine arrangement, as it were, of the figure representation in FIG. 2a.
• the support concept according to the invention provides for a support 3, which is axially one-sided at an end region of the gas turbine arrangement or alternatively two axially opposite end portions of the gas turbine assembly is provided.
• the solution according to the support 3 has a matched to the outer contour of the outer housing 5 of the gas turbine assembly 1 AufEnglishung 7, via which the support 3 is fixedly connected to the outer housing 5.
• the connection can usually be made via detachable screw connections in order to ensure easy assembly.
• the semicircular formed in the exemplary embodiment 7 AufEnglishung largely completely comprises the lower half of the outer housing 5, so that the gas turbine assembly is supported in both the horizontal and vertical direction safely from the support 3.
• the support 3 also has a flat and horizontally oriented support surface 8, which is arranged opposite a flat and horizontally oriented support surface 9 of a load-receiving base frame 10 as it were. Between the support surface 8 and the support surface 9 so-called.
• Support plate elements 11 are provided which the support 3 with respect to the base frame 10 by a gap corresponding to the respective thickness of the support plate elements 11, spaced.
• the Abstützplattenimplantation 11 serve as spacers and preferably even have only a small surface area, so that their degree of coverage relative to the support surface 8 is as low as possible in order to obtain a high degree of adjustability of the inherent elasticity of the support surface 8. It is still necessary to adjust the rigidity or elasticity of the supports 3 to the vibration behavior of each operating gas turbine assembly 1 with simple technical means to gain influence on the structural resonance.
• the support surface 8 is formed as a flat surface, mounted horizontally and symmetrically to the center axis M, which also represents a center of gravity line through the gas turbine rotating machine formed. Thus, it is always cut from the center of gravity line, so that a secure storage of the gas turbine arrangement is ensured.
• the vibration behavior of the support surface 8 of the support 3 can be influenced by the number of support plate elements 11 introduced between the support 3 and the base frame 10 and their arrangement. If, for example, according to the exemplary embodiment in FIG.
• lifting means 12 can be integrated within the foundation base frame 10, which can accommodate the load of the gas turbine arrangement in the region of the support 3 for a short time and raise the support surface 8 relative to the base frame 10. Since the support plate elements 11 rest loosely on the support surface 9 of the base frame 10, they can be manually moved smoothly. It is also possible to adjust the respective support height of each individual support plate element individually by placing additional spacer plates on the respective support plate elements.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Turbine Rotor Nozzle Sealing (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)

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Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

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Citations (10)

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• 2007
  • 2007-02-21 JP JP2008558756A patent/JP2009530525A/ja active Pending
  • 2007-02-21 AU AU2007228927A patent/AU2007228927B2/en not_active Ceased
  • 2007-02-21 WO PCT/EP2007/051649 patent/WO2007107422A1/de not_active Ceased
  • 2007-02-21 EP EP07704675.3A patent/EP1996796B1/de active Active
  • 2007-02-21 ES ES07704675.3T patent/ES2565018T3/es active Active
• 2008
  • 2008-09-16 US US12/211,454 patent/US8028967B2/en not_active Expired - Fee Related

Patent Citations (10)

Non-Patent Citations (1)

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