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특허 상세정보

Pilot nozzle steam injection for reduced NO.sub.x emissions, and method

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02C-003/30   
미국특허분류(USC) 60/039.05 ; 60/039.3 ; 60/039.55
출원번호 US-0892662 (1997-07-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Eckert Seamans Cherin & Mellott, LLC
인용정보 피인용 횟수 : 44  인용 특허 : 18
초록

A combustion system has a diffusion flame pilot assembly and a steam delivery assembly. The diffusion flame pilot assembly has a fuel line with a downstream end terminating at a pilot nozzle. The steam delivery assembly has a steam line terminating at a steam outlet proximate to said fuel line and upstream of said pilot nozzle for directing steam to the pilot nozzle. An aspect of the invention has a steam throttle valve for adjusting the steam flow to the pilot nozzle based on the combustion system's NO.sub.X emissions and/or characteristics of said pilo...

대표
청구항

[ We claim:] [1.] A combustion system comprising:a diffusion flame pilot assembly having a fuel line with a downstream end terminating at a pilot nozzle; anda steam delivery assembly having a steam line terminating at a steam outlet proximate to said fuel line and upstream of said pilot nozzle wherein said steam outlet is a steam injection toroid surrounding said fuel line.

이 특허에 인용된 특허 (18)

  1. McCarty William L. (West Chester PA) Von Seelen Achim A. (Winter Park FL). Automatic NOx control for a gas turbine. USP1994055307619.
  2. Meeks Thomas (25590 Pospect Ave. #35B Loma Linda CA 92354). Burner having low pollutant emissions. USP1995125472341.
  3. Urushidani Haruo (Hitachi JPX) Takihana Seisaku (Ibaraki JPX) Kumata Kazuhiko (Katsuta JPX) Shimura Akira (Hitachi JPX) Arai Osamu (Hitachi JPX) Iwamiya Takeshi (Katsuta JPX) Ikeda Hiraku (Katsuta JP. Combustion apparatus and control method therefor. USP1994015281129.
  4. Maghon Helmut (Mlheim/Ruhr DEX) Becker Bernard (Mlheim/Ruhr DEX). Combustion chamber apparatus for combustion installations, especially for combustion chambers of gas turbine installatio. USP1987104701124.
  5. Okamoto Hiroaki (Yokohama JPX) Takahara Takeshi (Yokohama JPX) Maeda Fukuo (Machida JPX). Combustor for gas turbine. USP1990094955191.
  6. Sato Isao (Hitachi JPX) Ishibashi Yoji (Hitachi JPX) Tamura Zensuke (Hitachi JPX) Ohmori Takashi (Hitachi JPX) Minakawa Yoshimitsu (Hitachi JPX) Fujimura Hidekazu (Mito JPX) Uchiyama Yoshihiro (Hitac. Combustor for gas turbine. USP1987064671069.
  7. Brady Robert T. (Elmhurst IL) Werling Joseph H. (Mundelein IL). Compact boiler having low NOx emissions. USP1995125471957.
  8. Rajput Amjad P. (San Diego CA). Dual fuel injector nozzle for use with a gas turbine engine. USP1995045404711.
  9. Reed ; Robert D. ; McGill ; Eugene C.. Fuel-water vapor premix for low NOx burning. USP1978054089639.
  10. Donlan John P. (Oviedo FL). Gas turbine dual fuel nozzle assembly with steam injection capability. USP1994115361578.
  11. Michelson Herbert D. (Fort Lee NJ) Stumbar James P. (Berkeley Heights NJ). Low NOx premix burner. USP1986124629413.
  12. Mumford Stephen E. (Longwood FL) Parker David M. (Oviedo FL). Low NOx combustor retro-fit system for gas turbines. USP1995055415000.
  13. Korenberg Jacob (York PA). Method of combustion and combustion apparatus to minimize Nox and CO emissions from a gas turbine. USP1994025285628.
  14. Kravets Alexander (#613 B Cranbury Cross Rd. North Brunswick NJ 08902). Method of fuel combustion. USP1996035501162.
  15. Lovett Jeffery A. (Scotia NY). Multi-stage fuel nozzle for reducing combustion instabilities in low NOX gas turbines. USP1995045408830.
  16. Talabisco George C. (Olean NY) Holland Gregory P. (Olean NY). NOx and CO control for gas turbine. USP1994105357741.
  17. Moreno Frederick E. (Los Altos CA) Joshi Narendra D. (Phoenix AZ). Staged lean premix low nox hot wall gas turbine combustor with improved turndown capability. USP1990034910957.
  18. Russell John N. (Burnt Hills Schenectady NY) Smith David W. (Schenectady NY) McMullen Joseph C. (Scotia NY). Water and steam injection system for emission control of gas turbines. USP1981044259837.

이 특허를 인용한 특허 피인용횟수: 44

  1. Stephens, George; Spicer, David B.; Belt, James H.; Trimble, Robert. Apparatus for optimizing burner performance. USP2005056890171.
  2. Stephens, George; Spicer, David B.. Burner design for achieving higher rates of flue gas recirculation. USP2005046884062.
  3. Stephens, George. Burner design for reduced NOx emissions. USP2005056893251.
  4. Stephens, George. Burner employing cooled flue gas recirculation. USP2005036869277.
  5. Spicer, David B.. Burner employing flue-gas recirculation system. USP2005016846175.
  6. Stephens,George; Spicer,David B.. Burner employing steam injection. USP2006016986658.
  7. Stephens, George. Burner system employing flue gas recirculation. USP2005036866502.
  8. Spicer, David B.. Burner tip for pre-mix burners. USP2005066902390.
  9. Stephens, George; Spicer, David B.; Bury, Mark E.; Pellizzari, Roberto O.; Loftus, Peter. Burner with flue gas recirculation. USP2005056890172.
  10. Stephens, George; Spicer, David B.. Burner with high capacity venturi. USP2005046881053.
  11. Stephens,George; Spicer,David B.. Burner with high capacity venturi. USP2006047025587.
  12. Stephens, George; Spicer, David B.; Trimble, Robert; Gauba, Gautam; Bury, Mark E.. Burner with low NOx emissions. USP2005046877980.
  13. Spicer, David B.. Centering plate for burner. USP2005056887068.
  14. Laster, Walter R.; Bandaru, Ramarao V.. Controlled pilot oxidizer for a gas turbine combustor. USP2010077752850.
  15. Hamrin, Douglas; Lampe, Steve. Controls for multi-combustor turbine. USP2016039273606.
  16. Dutta, Partha; Smith, Kenneth O.; Ritz, Frank J.. Flow conditioner for fuel injector for combustor and method for low-NOx combustor. USP2013098528334.
  17. Prabhu, Edan. Fuel oxidation in a gas turbine system. USP2017039587564.
  18. Stephens, George; Spicer, David B.. Fuel spud for high temperature burners. USP2005056893252.
  19. Christian L. Vandervort ; Richard S. Bourgeois. Fuel system configuration for staging fuel for gas turbines utilizing both gaseous and liquid fuels. USP2002066397602.
  20. Ryan, William R.. Gas turbine pilot burner and method. USP2003126666029.
  21. Gadde, Satish; Gordon, Thomas J.. Gas turbine pilot burner water injection and method of operation. USP2004046715295.
  22. Maslov, Boris A.. Gradual oxidation and autoignition temperature controls. USP2015129206980.
  23. Maslov, Boris A.. Gradual oxidation and autoignition temperature controls. USP2016039273608.
  24. Maslov, Boris A.; Armstrong, Jeffrey. Gradual oxidation with flue gas. USP2017089726374.
  25. Watts, Jim. Gradual oxidation with gradual oxidizer warmer. USP2015119194584.
  26. Hamrin, Douglas; Armstrong, Jeffrey. Gradual oxidation with heat control. USP2016069359948.
  27. Lampe, Steve; Hamrin, Douglas. Gradual oxidation with heat control. USP2016059347664.
  28. Lampe, Steve; Hamrin, Douglas. Gradual oxidation with heat control. USP2016059328916.
  29. Lampe, Steve; Hamrin, Douglas. Gradual oxidation with heat control. USP2016069359947.
  30. Armstrong, Jeffrey; Martin, Richard; Hamrin, Douglas. Gradual oxidation with heat transfer. USP2017029567903.
  31. Armstrong, Jeffrey; Maslov, Boris A.. Gradual oxidation with heat transfer. USP2016019234660.
  32. Hamrin, Douglas; Martin, Richard; Armstrong, Jeffrey. Gradual oxidation with heat transfer. USP2016059353946.
  33. Stephens,George; Spicer,David B.. Method for adjusting pre-mix burners to reduce NOemissions. USP2008017322818.
  34. Hook,Richard B.; Davidson,John M.; Kress,Eric J.; Smith, Jr.,Jack W.; Stegmaier,James W.; Heberling,Paul V.; Patterson,David B.. Methods and apparatus for reducing gas turbine engine emissions. USP2006016983605.
  35. Hamrin, Douglas; Lampe, Steve. Multi-combustor turbine. USP2016039279364.
  36. Mao, Chien-Pei; Short, John Earl; Thomson, Neal A.. Multiplex injector. USP2004066755024.
  37. Prabhu, Edan. Oxidizing fuel. USP2014038671658.
  38. Prabhu, Edan. Oxidizing fuel in multiple operating modes. USP2018039926846.
  39. Bland, Robert J.. Removable diffusion stage for gas turbine engine fuel nozzle assemblages. USP2010047690203.
  40. Stephens,George; Spicer,David B.. Removable light-off port plug for use in burners. USP2009017476099.
  41. Armstrong, Jeffrey; Martin, Richard; Hamrin, Douglas. Staged gradual oxidation. USP2016029267432.
  42. Armstrong, Jeffrey; Martin, Richard; Hamrin, Douglas; Perry, Joe. Staged gradual oxidation. USP2014088807989.
  43. Motter, Eric; Ziminsky, Willy Steve; Fossum, Arthur James; Iasillo, Robert Joseph. Systems for low emission gas turbine energy generation. USP2009047513100.
  44. Wasif, Samer P.. Utilizing a diluent to lower combustion instabilities in a gas turbine engine. USP2015049017064.