In one embodiment, a premixer is provided for use, e.g., with trapped vortex (TVC) combustors, that injects premixed fuel and air directly into the recirculating vortex, in a manner compatible with natural vortex flow in the cavity.
대표청구항▼
1. A premixer in combination with a trapped vortex combustion (TVC) reactor, said premixer comprises an inlet premixer and a vortex premixer; said vortex premixer is attached to said TVC reactor and comprises a fuel inlet, an air inlet, a chamber wherein fuel and air are mixed, and an outlet for fue
1. A premixer in combination with a trapped vortex combustion (TVC) reactor, said premixer comprises an inlet premixer and a vortex premixer; said vortex premixer is attached to said TVC reactor and comprises a fuel inlet, an air inlet, a chamber wherein fuel and air are mixed, and an outlet for fuel-air mixture;said TVC reactor comprising at least one trapped vortex cavity shaped and dimensioned such that the main flow of fluid through said reactor is sufficient to induce a vortex to circulate within said trapped vortex cavity irrespective of any flow of fuel-air mixture from said premixer; wherein said premixer is positioned on said TVC reactor so that said outlet introduces said fuel-air mixture directly into said trapped vortex cavity, and so that said fuel-air mixture is introduced into said trapped vortex cavity at an angle tangential to the recirculation flow within the cavity such that said fuel-air mixture joins the flow of said vortex approximately codirectionally with said vortex flow;said inlet premixer comprising a plurality of concentric, coplanar, aerodynamically shaped ring elements positioned upstream of said TVC reactor, axially aligned within a flow path, each said ring element having an interior passage for fuel, each said ring element further comprising a plurality of fuel injection orifices whereby fuel flows from said interior passage into the inlet fluid flow proximate to said ring, and wherein each pair of said ring elements defines an annular passage therebetween;and a conical bluff body located directly downstream of said inlet premixer and upstream of said TVC reactor configured to provide a nozzle and accelerate a premixed mixture exiting said inlet premixer. 2. The premixer and TVC reactor of claim 1, wherein said trapped vortex cavity has a curved wall between an inlet and an outlet of said TVC reactor, wherein said vortex premixer further comprises at least one injector tube oriented tangentially to said curved wall and extending from the outside said TVC reactor through said curved wall and into said trapped vortex cavity. 3. The premixer and TVC reactor of claim 2, wherein said TVC is a can combustor, further comprising a plurality of said injector tubes arranged circumferentially around the radial periphery of said TVC. 4. The premixer and TVC reactor of claim 2, wherein said TVC is an annular combustor, further comprising a plurality of said injector tubes arranged around the annular periphery of said TVC. 5. The premixer and TVC reactor of claim 3 wherein the vortex flow in said TVC is from exit to inlet, and further wherein said circumferential arrangement of injector tubes are disposed proximate the midpoint of said combustor and extend toward said exit. 6. The premixer and TVC reactor of claim 3, wherein said plurality of injector tubes is about 100 tubes, each of said tubes having a diameter of approximately 0.1-0.2 inches. 7. The premixer and TVC reactor of claim 1, wherein said trapped vortex cavity has walls defining a rectilinear cross-section, wherein said vortex premixer is further oriented to introduce said fuel-air mixture from at least one inlet in said trapped vortex cavity, substantially codirectionally with said vortex. 8. The premixer and TVC reactor of claim 7 wherein said TVC is an annular combustor, further comprising a plurality of said injector tubes arranged around the annular periphery of said TVC. 9. An assembly comprising a premixer and TVC reactor in accordance with claim 1, further comprising a gas turbine, said assembly being adapted for electric power generation. 10. An assembly comprising a premixer and TVC reactor in accordance with claim 1, further comprising a gas turbine, said assembly being adapted for use as a propulsion jet engine for aviation. 11. An assembly comprising a premixer and TVC reactor in accordance with claim 1, further comprising a gas turbine, said assembly being adapted as an auxiliary electric power generation unit. 12. An assembly comprising a premixer and TVC reactor in accordance with claim 1, further comprising a gas turbine, said assembly being adapted as a combustion turbine for a combined heat and power plant. 13. An assembly comprising a premixer and TVC reactor in accordance with claim 1, further comprising a gas turbine, said assembly being adapted as a combustion turbine for an integrated gasification combined cycle plant. 14. The premixer and TVC reactor of claim 1, wherein the vortex premixer outlet is disposed at the downstream side of the TVC. 15. The premixer and TVC reactor of claim 1, wherein fuel-air mixture is introduced through an opening extending along a curvilinear length of a trapped vortex cavity wall.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (162)
Johnston Richard P. (Morrow OH) Knapp Malcolm H. (South Lynnfield MA) Coulson Charles E. (Danvers MA), Active clearance control system for a turbomachine.
Hoehing William W. (Houston TX) Jackson John M. (Louisville KY) Johnson Edward R. (Hopewell VA), Apparatus and method to control process to replace natural gas with fuel oil in a natural gas burner.
Roffe Gerald Alton (3 Markwood Lane East Northport NY 11731) Trucco Horacio Andres (13 Sadler Court Huntington Station NY 11746), Apparatus for the gas phase combustion of liquid fuels.
Dudebout,Rodolphe; Edmonds,David H.; Zupanc,Frank J.; DeRudder,Roger J.; Scaini,Mario; Reyes,Victor M., Auxiliary power unit having a rotary fuel slinger.
Baily Frederick G. ; Rentz Lawrence E. ; Retzlaff Klaus M. ; Turnquist Norman A., Brush seal mounting in supporting groove using flat spring with bifurcated end.
Zarzalis Nikolaos (Dachau DEX) Ripplinger Thomas (Vierkirchen DEX), Combustion apparatus for a gas turbine having separate combustion and vaporization zones.
Doerler Nicole,FRX ; Renard Gerard,FRX ; Rojey Alexandre,FRX, Enhanced oil recovery process with combined injection of an aqueous phase and of at least partially water-miscible gas.
Hiereth Hermann (Esslingen DEX) Erdmann Wolfgang (Stuttgart DEX) Sumser Siegfried (Stuttgart DEX), Exhaust gas turbocharger for a supercharged internal combustion engine.
Ansart Denis Roger Henri (Bois le Roi FRX) Commaret Patrice Andre (Maincy FRX) Sandelis Denis Jean Maurice (Nangis FRX), Fuel injection assembly for a gas turbine engine.
Birch Peter H. (Woodingdean GBX) Kondo Toshiyuki (Brighton GBX) Mori Katsuhiro (Aichi JPX), Gas turbine cogeneration apparatus for the production of domestic heat and power.
Cowell Luke H. (San Diego CA) Roberts Peter B. (Encinitas CA), Gas turbine engine catalytic and primary combustor arrangement having selective air flow control.
Noe James C. (23650 Community St. West Hills CA 91304) McKeirnan ; Jr. Robert D. (8300 Manitoba St. #210 Playa del Rey CA 90293), Gas turbine generator set.
Stumpf, James Anthony; Duncan, Beverly Stephenson; Burrus, David Louis; Cooper, Clayton Stuart, Liner for a gas turbine engine combustor having trapped vortex cavity.
Schwartz Robert E. (Tulsa) Napier Samuel O. (Sapulpa) Jones Andrew P. (Bixby) Noble Roger K. (Tulsa OK), Low NOx formation burner apparatus and methods.
Rabovitser, Iosif K.; Knight, Richard A.; Cygan, David F.; Nester, Serguei; Abbasi, Hamid A., Method and apparatus for advanced staged combustion utilizing forced internal recirculation.
Khinkis Mark J. (Morton Grove IL) Abbasi ; Hamid A. (Darien IL) Cygan David F. (Villa Park IL), Method for two-stage combustion utilizing forced internal recirculation.
Ambrosch Friedrich (Nremburg DEX) Schwaebel Rudolf (Nremburg DEX), Method of and device for avoiding rotor instability to enhance dynamic power limit of turbines and compressors.
Verpoort Clemens (Fislisbach CHX), Method of manufacturing a workpiece of any given cross-sectional dimensions from an oxide-dispersion-hardened nickel-bas.
Mathiesen Mait M. (Summit NJ) Svensson Kent O. (Helsingborg SEX), Method of preparing an aqueous slurry of solid carbonaceous fuel particles and an aqueous slurry so prepared.
Arthur Wesley Johnson ; Robert Andrew Wade ; Hukam Chand Mongia ; David Louis Burrus, Methods and apparatus for decreasing combustor emissions with swirl stabilized mixer.
Ankersmit Hendrik Jan (Schiedam NLX) Hendriks Rudolf (Velp NLX) Blomen Leo Jozef Maria Joannes (Voorschoten NLX), Process and device for generating mechanical energy.
Smyrniotis Christopher R. ; Michels William F. ; Marshall M. Damian ; Sun William H. ; Diep Daniel V. ; Chenanda Cari M., Process for increasing the effectiveness of slag and/or corrosion control chemicals for combustion units.
Smyrniotis Christopher R. ; Michels William F. ; Marshall M. Damian ; Sun William H. ; Diep Daniel V. ; Chenanda Cari M., Process for increasing the effectiveness of slag control chemicals for black liquor recovery and other combustion units.
Matt Bernhard (Rheinheim DEX) Woringer Theo (Zurich CHX) Zouzoulas Gerassime (Dietikon CHX), Ring combustion chamber with ring burner for gas turbines.
Chauhan Satya P. (Worthington OH) Feldmann Herman F. (Worthington OH) Stambaugh Edgel P. (Worthington OH) Liu Ke-Tien (Allison Park PA), Solid fuel preparation method.
Toon, Ian J.; O'Dell, Stephen J.; Currin, John H.; Willis, Jeffrey D., Staged gas turbine combustion chamber with counter swirling arrays of radial vanes having interjacent fuel injection.
Steele, Robert C.; Edmonds, Ryan G.; Williams, Joseph T.; Baldwin, Stephen P., Vortex combustor for low NOx emissions when burning lean premixed high hydrogen content fuel.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.