Claims
- 1. An exhaust silencer panel for use in conjunction with a gas turbine exhaust system comprising:a metallic framework having a plurality of sides defining an enclosed space; a perforated metallic web member extending between two of said plurality of sides of said metallic framework within said enclosed space, said web member defining a plurality of openings; a free floating septum disposed within said enclosed space of said metallic framework adjacent said perforated metallic web member; and acoustic insulation disposed within said enclosed space of said metallic framework adjacent said free floating septum.
- 2. The exhaust silencer panel of claim 1 further adapted to be vertically hung within a stack.
- 3. The exhaust silencer panel of claim 1 further adapted to be mounted vertically within a stack.
- 4. The exhaust silencer panel of claim 1 wherein more than 50% of the area of said web member not exposed to the direct exhaust stream of said gas turbine is open space.
- 5. The exhaust silencer panel of claim 1 wherein said web member includes a plurality of discrete cross members defining said plurality of openings.
- 6. A sound attenuating panel for use in a power generation system comprising:a framework having a plurality of sides defining an enclosed space; a perforated web extending between two of said plurality of sides of said framework within said enclosed space, said web defining a plurality of perforations; and acoustical insulation disposed within said enclosed space of said framework adjacent said perforated web.
- 7. The exhaust silencer panel of claim 6 further comprising a septum disposed within said enclosed space of said framework adjacent said web for restricting shifting of said acoustical insulation within said framework.
- 8. The exhaust silencer panel of claim 7 wherein said septum is free floating.
- 9. The exhaust silencer panel of claim 6 further comprising a quantity of cladding disposed adjacent said web, said quantity of cladding allowing impingement of exhaust gas upon said insulation.
- 10. The exhaust silencer panel of claim 9 wherein said cladding is perforated stainless steel panel.
- 11. The exhaust silencer panel of claim 6 wherein said perforated web defines a total area, said plurality of openings defining more than 50% of said total area.
- 12. The exhaust silencer panel of claim 6 wherein said acoustical insulation is expanded ceramic fiber.
- 13. The sound attenuating panel of claim 6 wherein said web includes a plurality of discrete cross members defining said plurality of openings.
- 14. An exhaust silencer system for use in a power generation system including a gas turbine having an exhaust, said exhaust silencer system comprising:an exhaust duct in communication with said exhaust of said gas turbine, said exhaust duct including a silencer chamber capable of receiving a plurality of exhaust silencer panels; a framework having a plurality of sides defining an enclosed space, said framework being disposed within said silencer chamber; a perforated web extending between two of said plurality of sides of said framework within said enclosed space, said web defining a plurality of openings, said perforated web having a total area, said openings comprising at least 50% of said total area of said web; acoustical insulation disposed within said enclosed space of said framework adjacent said perforated web; a septum disposed within said enclosed space of said framework for restricting shifting of said acoustical insulation within said enclosed space of said framework; and a quantity of cladding disposed adjacent said web for restricting movement of said acoustical insulation outside of said enclosed space of said framework.
- 15. The exhaust silencer system of claim 14 wherein said septum is free floating.
- 16. The exhaust silencer system of claim 14 wherein said web includes a plurality of discrete cross members defining said plurality of openings.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of U.S. application Ser. No. 08/625,556, filed Apr. 1, 1996 now U.S. Pat. No. 5,715,672.
US Referenced Citations (11)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
08/625556 |
Apr 1996 |
US |
Child |
08/783279 |
|
US |