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公开(公告)号：US10955141B2
公开(公告)日：2021-03-23
申请号：US15626387
申请日：2017-06-19
摘要： The present disclosure is directed to a fuel nozzle including a center body having a tube shape and a ring manifold disposed at an aft end of the center body. The fuel nozzle also includes an inner tube extending axially through the ring manifold and disposed within the center body. The inner tube is in fluid communication with a diluent supply. The fuel nozzle further includes a fuel tube extending helically around a portion of the inner tube. The fuel tube fluidly couples a fuel plenum of the ring manifold to a liquid fuel supply. Furthermore, the fuel nozzle includes a plurality of fuel injectors circumferentially spaced within an outer band of the ring manifold and in fluid communication with the fuel plenum. Each fuel injector is oriented to direct atomized liquid fuel radially outward from the center body. The ring manifold and the inner tube are thermally decoupled.
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公开(公告)号：US10947902B2
公开(公告)日：2021-03-16
申请号：US15621347
申请日：2017-06-13
摘要： An inlet manifold includes a main inlet oriented along a first direction and a pilot inlet oriented along a second direction perpendicular to the first direction. A wye passage includes an inlet branch in fluid communication with the main inlet. The inlet manifold also includes a first main passage in fluid communication with a first outlet branch of the wye passage and a second main passage in fluid communication with a second outlet branch of the wye passage. The first main passage extends generally along the first direction between the wye passage and a first main outlet. The second main passage extends generally along the first direction between the wye passage and a second main outlet. The inlet manifold also includes a pilot passage in fluid communication with the pilot inlet. The pilot passage extends generally along the first direction between the pilot inlet and a pilot outlet.
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公开(公告)号：US10697639B2
公开(公告)日：2020-06-30
申请号：US15460398
申请日：2017-03-16
摘要： A dual-fuel fuel nozzle includes a centerbody that at least partially defines an air plenum therein. A tip body is disposed at a downstream end of the centerbody. The tip body includes an upstream side that is axially spaced from a downstream side. The downstream side defines a circular slot and a circular recess that is positioned radially inwardly from the circular slot. The circular recess includes a floor and a side wall, The floor defines an insert opening and the side wall defines an annular groove that includes an undercut surface. The tip body further defines a plurality of orifices annularly arranged around the insert opening radially inward from the side wall of the circular recess. Each orifice includes an inlet that is in fluid communication with the air plenum and an outlet that is oriented towards the undercut surface.
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公开(公告)号：US20160169524A1
公开(公告)日：2016-06-16
申请号：US14567753
申请日：2014-12-11
发明人： Stanley Kevin Widener , Lewis Berkley Davis, JR. , Gregory Thomas Foster , Kaitlin Marie Graham , Krishnakumar Venkataraman
CPC分类号： F23R3/286 , F01D9/06 , F02C7/222 , F23R3/34 , F23R2900/03341
摘要： Embodiments of the present disclosure provide injection systems for fuel and air. According to one embodiment, an injection system can include a mixing zone embedded within a surface of a turbine nozzle and positioned between a first outlet and a second outlet, the turbine nozzle separating a combustor of a power generation system from a turbine stage of the power generation system, wherein the first outlet is oriented substantially in opposition to the second outlet; a first injection conduit for delivering a carrier gas to the mixing zone through the first outlet; and a second injection conduit for delivering a fuel to the mixing zone through a second outlet; wherein the carrier gas and the fuel intermix within the mixing zone upon leaving the first injection conduit and the second injection conduit.
摘要翻译： 本公开的实施例提供了用于燃料和空气的喷射系统。 根据一个实施例，喷射系统可以包括嵌入在涡轮喷嘴的表面内并且位于第一出口和第二出口之间的混合区域，涡轮喷嘴将发电系统的燃烧器与动力的涡轮级分离 其中所述第一出口基本上与所述第二出口相对; 用于通过第一出口将载气输送到混合区的第一注入管道; 和用于通过第二出口将燃料输送到混合区的第二注入管道; 其中所述载气和所述燃料在离开所述第一注射导管和所述第二注射导管时在所述混合区内混合。
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公开(公告)号：US10746101B2
公开(公告)日：2020-08-18
申请号：US15621367
申请日：2017-06-13
摘要： An annular fuel manifold includes an annular fuel plenum defined within the annular fuel manifold, an axial inlet into the annular fuel plenum, and a deflector downstream of the axial inlet, the deflector oriented such that fluid flow into the annular fuel plenum from the axial inlet is deflected by the deflector at least partially along a circumference of the annular fuel plenum.
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公开(公告)号：US20180363899A1
公开(公告)日：2018-12-20
申请号：US15626486
申请日：2017-06-19
摘要： The present disclosure is directed to a dual-fuel fuel nozzle including a center body having a tube shape and a gas fuel plenum defined within the center body. The fuel nozzle also includes a plurality of turning vanes extending radially outward from the center body. Each turning vane includes at least one fuel port in fluid communication with the gas fuel plenum. A plurality of apertures is disposed through the plurality of turning vanes. The fuel nozzle further includes a ring manifold disposed within the center body downstream of the plurality of turning vanes. Additionally, the fuel nozzle includes a first fuel tube extending helically around a centerline of the center body. Furthermore, the fuel nozzle includes an air shield disposed within the center body and extending circumferentially around the first fuel tube.
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公开(公告)号：US10107498B2
公开(公告)日：2018-10-23
申请号：US14567753
申请日：2014-12-11
发明人： Stanley Kevin Widener , Lewis Berkley Davis, Jr. , Gregory Thomas Foster , Kaitlin Marie Graham , Krishnakumar Venkataraman
摘要： Embodiments of the present disclosure provide injection systems for fuel and air. According to one embodiment, an injection system can include a mixing zone embedded within a surface of a turbine nozzle and positioned between a first outlet and a second outlet, the turbine nozzle separating a combustor of a power generation system from a turbine stage of the power generation system, wherein the first outlet is oriented substantially in opposition to the second outlet; a first injection conduit for delivering a carrier gas to the mixing zone through the first outlet; and a second injection conduit for delivering a fuel to the mixing zone through a second outlet; wherein the carrier gas and the fuel intermix within the mixing zone upon leaving the first injection conduit and the second injection conduit.
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公开(公告)号：US20160033138A1
公开(公告)日：2016-02-04
申请号：US14448170
申请日：2014-07-31
CPC分类号： F23R3/36 , B23P19/00 , F02C7/222 , F02C7/24 , F02C9/40 , F05D2230/642 , F05D2260/20 , F23D11/36 , F23D11/40 , F23D11/441 , F23D17/00 , F23D17/002 , F23D2900/00018 , F23R3/283 , F23R3/286 , F23R3/343
摘要： A fuel plenum for a fuel nozzle assembly includes a gaseous fuel conduit, a conduit passage, and a liquid fuel conduit. Said gaseous fuel conduit received at a first end of said fuel plenum. Said fuel plenum is configured to distribute gaseous fuel received from said gaseous fuel conduit. Said conduit passage extends from the first end to a second end of said fuel plenum. Said conduit passage is at least partially defined by at least one interior wall of said fuel plenum. Said liquid fuel conduit defined by an outer wall and a portion of said liquid fuel conduit extending through said conduit passage. Said liquid fuel conduit outer wall is offset from said at least one interior wall.
摘要翻译： 用于燃料喷嘴组件的燃料增压室包括气体燃料管道，导管通道和液体燃料管道。 所述气体燃料管道容纳在所述燃料增压室的第一端。 所述燃料增压室构造成分配从所述气体燃料管道接收的气体燃料。 所述导管通道从所述燃料增压室的第一端延伸到第二端。 所述导管通道至少部分地由所述燃料增压室的至少一个内壁限定。 所述液体燃料导管由外壁和所述液体燃料管道的一部分限定，延伸穿过所述导管通道。 所述液体燃料导管外壁从所述至少一个内壁偏移。
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9.发明申请公开(公告)号：US20140260303A1
公开(公告)日：2014-09-18
申请号：US13837186
申请日：2013-03-15
IPC分类号： F23R3/34
摘要： A method for use in a gas turbine engine. The method includes the steps of: configuring a downstream injection system within the interior flowpath that includes two injection stages, a first stage and a second stage, wherein the first stage and the second stage are each axially spaced from the other; and circumferentially positioning the injectors of the first stage and the second stage based on: a) a characteristic of an anticipated combustion flow occurring just upstream of the first stage during a mode of operation; and b) the characteristic of an anticipated combustion flow just downstream of the second stage given an anticipated effect of the air and fuel injection from the first stage and the second stage.
摘要翻译： 一种在燃气轮机中使用的方法。 该方法包括以下步骤：在内部流路内配置下游喷射系统，该下游喷射系统包括两个喷射级，第一级和第二级，其中第一级和第二级各自轴向间隔开另一级; 并且基于以下步骤周期性地定位所述第一级和第二级的喷射器：a）在操作模式期间正好在所述第一级的上游发生的预期燃烧流的特性; 以及b）考虑到来自第一阶段和第二阶段的空气和燃料喷射的预期效果，正好在第二阶段下游的预期燃烧流的特征。
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公开(公告)号：US20180363911A1
公开(公告)日：2018-12-20
申请号：US15626387
申请日：2017-06-19
摘要： The present disclosure is directed to a fuel nozzle including a center body having a tube shape and a ring manifold disposed at an aft end of the center body. The fuel nozzle also includes an inner tube extending axially through the ring manifold and disposed within the center body. The inner tube is in fluid communication with a diluent supply. The fuel nozzle further includes a fuel tube extending helically around a portion of the inner tube. The fuel tube fluidly couples a fuel plenum of the ring manifold to a liquid fuel supply. Furthermore, the fuel nozzle includes a plurality of fuel injectors circumferentially spaced within an outer band of the ring manifold and in fluid communication with the fuel plenum. Each fuel injector is oriented to direct atomized liquid fuel radially outward from the center body. The ring manifold and the inner tube are thermally decoupled.
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