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특허 상세정보

Steam-cooled blading with steam thermal barrier for reheat gas turbine combined with steam turbine

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01B-005/18    F02C-007/16   
미국특허분류(USC) 60/3905 ; 60/3914 ; M ; 60/3918 ; B ; 60/3954
출원번호 US-0047571 (1979-06-11)
발명자 / 주소
인용정보 피인용 횟수 : 41  인용 특허 : 2
초록

Steam-cooling with a steam thermal barrier for reheat gas turbine vanes and blades offers advantages over cooling with air or water at the higher temperatures characteristic of existing high temperature gas tubines, in particular when coupled with a reheat steam cycle. Consequently, in such a combined cycle, higher cycle efficiency is obtainable for gas turbine initial firing temperatures of about 2500°F. (1371°C.) and 2050°F. (1121°C.) reheat temperatures where over-all combined cycle degradation resulting from steam cooling is below about 1%. A propose...

대표
청구항

In the production of useful power wherein compressed heated gas is produced for contacting turbine blading for rotating a turbine shaft, and said turbine blading is cooled, the improvement comprising; introducing steam into the interior of said blading, directing steam from the interior of said blading substantially tangentially onto the exterior surfaces of said blading, the relative velocity of said steam directed onto the surface of said blading being substantially zero with respect to the velocity of said compressed heated gas contacting said blading...

이 특허를 인용한 특허 피인용횟수: 41

  1. Tabbita Martin G. ; Downs James P. ; Soechting Friedrich O. ; Auxier Thomas A.. Apparatus and method for cooling an airfoil for a gas turbine engine. USP2000046050777.
  2. Groess Helmut (Esterhofen DEX) Graeml ; deceased Horst (late of Markt Indersdorf DEX by Edith Graeml ; administrator). Axial-flow turbine blade, especially axial-flow turbine rotor blade for gas turbine engines. USP1985034505639.
  3. Carreno Diether E. (Schenectady NY) Myers Albert (Amsterdam NY) Palmer Gene D. (Clifton Park NY) Caruso Philip M. (Selkirk NY) Wilson Ian D. (Clifton Park NY) Hemsworth Martin C. (Cincinnati OH). Closed or open circuit cooling of turbine rotor components. USP1997015593274.
  4. Mukherjee Dilip (Fislisbach CHX). Combined gas turbine and steam turbine power station. USP1984014424668.
  5. Rice Ivan G. (P.O. Box 233 Spring TX 77383). Compression intercooled gas turbine combined cycle. USP1990014896499.
  6. Sahm Michael K. (Ellington CT) Milano Robert (East Hartford CT). Convergent-divergent film coolant passage. USP1987114705455.
  7. LaFleur Ronald Samuel. Coolable airfoil for a gas turbine engine. USP2000086099251.
  8. Ahmad, Fathi. Coolant bridging line for a gas turbine, which coolant bridging line can be inserted into a hollow, cooled turbine blade. USP2018039926787.
  9. Lock Gary D,GBX ; Oldfield Martin L G,GBX. Coolant passages for gas turbine components. USP2001066241468.
  10. Auxier Thomas A. (Lake Park FL) Anderson Leon R. (Tequesta FL) Hill ; Jr. Edward C. (Tequesta FL). Coolant passages with full coverage film cooling slot. USP1987054664597.
  11. Ferber, J?rgen; Weigand, Bernhard. Cooled components with conical cooling passages. USP2005086923247.
  12. Hall Kenneth B. (Jupiter FL) Landis Kenneth K. (Tequesta FL). Cooled gas turbine blade. USP1989084859147.
  13. Frank J. Cunha ; Anthony L. Schiavo, Jr. ; Raymond Scott Nordlund ; Thomas Malow ; Barry L. McKinley. Cooled turbine vane with endcaps. USP2002096454526.
  14. Vehr James W. (Lake Park FL). Cross-flow film cooling passages. USP1987034653983.
  15. Graham, Robert W.; Papell, S. Stephen. Curved film cooling admission tube. USP1983054384823.
  16. Phillips James S. (Jupiter FL) Field Robert E. (Tequesta FL). Film coolant passage with swirl diffuser. USP1987064669957.
  17. Auxier Thomas A. (Lake Park FL) Field Robert E. (Tequesta FL). Film coolant passages for cast hollow airfoils. USP1987064676719.
  18. Field Robert E. (Tequesta FL). Film cooling passages with curved corners. USP1987084684323.
  19. Mukherjee,Dilip. Gas turbine and associated cooling method. USP2006057040097.
  20. Schott, Carl Gerard; Beadie, Douglas Frank; Black, Kenneth Damon; Cao, Khoa Dang. Gas turbine exhaust diffuser strut fairing having flow manifold and suction side openings. USP2016129528440.
  21. Cunha Frank J.. Gas turbine row #1 steam cooled vane. USP2000026019572.
  22. Ackermann, John F.; Arszman, Paul V.; Nagaraj, Bangalore A.. High temperature turbine nozzle for temperature reduction by optical reflection and process for manufacturing. USP2005086926496.
  23. Ceric, Hajrudin; Gaio, Giuseppe; Günther, Frank; Hülfenhaus, Armin; Hülsemann, Gerhard; Jungnickel-Marques, Gabriel; Wanz, Stefan. Liquid injection in a gas turbine during a cooling down phase. USP2010077752847.
  24. Auxier Thomas A. ; Downs James P. ; Kvasnak William S. ; Soechting Friedrich O. ; Calhoun William H. ; Hayes Douglas A.. Method and apparatus for cooling an airfoil. USP2001066247896.
  25. Soechting Friedrich O. ; Kvasnak William A. ; Auxier Thomas A. ; Downs James P. ; Calhoun William H. ; Hayes Douglas A.. Method and apparatus for cooling an airfoil. USP2001086280140.
  26. Frutschi Hansulrich,CHX ; Hausermann Alfred,CHX. Method of operating a power station plant with steam cooling. USP1999055906095.
  27. McMahan, Kevin Weston; Chila, Ronald James; Johns, David Richard. Methods and systems for cooling a transition nozzle. USP2016019243506.
  28. Tonks Robert C. (Bridgwater GB2). Nozzle guide vane for a gas turbine engine. USP1990014897020.
  29. Cunha, Francisco J.; Chiu, R. Paul. Steam and air cooling for stator stage of a turbine. USP1994065320483.
  30. Palmer, Miles; Allam, Rodney John; Fetvedt, Jeremy Eron. System and method for high efficiency power generation using a nitrogen gas working fluid. USP20180810054046.
  31. Bunker Ronald Scott. Tandem airfoils. USP2000086099245.
  32. Wei George C. (Weston MA) Walsh John (Milford MA). Thermal shock test apparatus and the method of testing. USP1988124793716.
  33. Readnour Jack L. (Toledo OH). Turbine airfoil. USP1988114786234.
  34. Tung Stephen K. ; Weldon Donald C.. Turbine airfoil breakout cooling. USP2001066241466.
  35. Liang, George. Turbine airfoil with showerhead cooling holes. USP2009067540712.
  36. Miranda, Carlos Miguel; Trimmer, Andrew Lee; Kottilingam, Srikanth Chandrudu; Lacy, Benjamin Paul. Turbine component having surface cooling channels and method of forming same. USP2017099752440.
  37. Hines William R. (Cincinnati OH). Turbine engine with air and steam cooling. USP1991014982564.
  38. Higashimori,Hirotaka; Osako,Katsuyuki; Shiraishi,Takashi; Mikogami,Takashi. Turbine rotor blade. USP2006067063508.
  39. Campbell, Christian X.. Vane assembly with metal trailing edge segment. USP2010117837438.
  40. Campbell,Christian X.. Vane assembly with metal trailing edge segment. USP2008017316539.
  41. Grieb Hubert (Germering DEX). Weapon system. USP1990084945811.