CN104121042A - 用于空气循环机的涡轮喷嘴和护罩 - Google Patents

用于空气循环机的涡轮喷嘴和护罩 Download PDF

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CN104121042A
CN104121042A CN201410168590.9A CN201410168590A CN104121042A CN 104121042 A CN104121042 A CN 104121042A CN 201410168590 A CN201410168590 A CN 201410168590A CN 104121042 A CN104121042 A CN 104121042A
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guard shield
nozzle
plate
air cycle
blades
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C.M.比尔斯
B.J.默里特
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Hamilton Sundstrand Corp
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Hamilton Sundstrand Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/005—Repairing methods or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/288—Protective coatings for blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/045—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector for radial flow machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/048—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector for radial admission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C1/00—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F02C1/02—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being an unheated pressurised gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/80—Repairing, retrofitting or upgrading methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/90—Coating; Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F05D2240/128—Nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/95—Preventing corrosion

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Architecture (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种用于空气循环机中的喷嘴和护罩，其具有板和护罩，所述护罩相对于所述板在第一轴向方向上绕着所述护罩的中心轴弯曲。多个叶片在第二轴向方向上背离所述板延伸。所述多个叶片背离所述板延伸一个高度和定义为两个相邻叶片之间的最近距离的宽度，所述高度与所述宽度的比介于.1091与.1401之间。还公开了一种空气循环机及维修方法。

Description

用于空气循环机的涡轮喷嘴和护罩
技术领域
本申请涉及一种用于空气循环机中的喷嘴。
已知空气循环机且其通常包括一个或多个涡轮，所述涡轮接收压缩空气源且被驱动来旋转。接着，涡轮旋转压缩机转子。空气由空气循环机调节且被移动用于飞机机舱空气调节和温度控制系统。
涡轮通常具有喷嘴和护罩，其控制涡轮转子上游和下游的空气流量。
发明概要
一种用于空气循环机中的喷嘴和护罩具有板和护罩，所述护罩相对于板在第一轴向方向上绕着护罩的中心轴弯曲。多个叶片在第二轴向方向上背离板延伸。多个叶片背离板延伸一个高度和定义为两个相邻叶片之间的最近距离的宽度，所述高度与所述宽度的比介于.1091与.1401之间。还公开了一种空气循环机及维修方法。
从下文附图和详述可最好地理解这些和其它特征。
附图简述
图1A示出空气循环机。
图1B示出涡轮转子和喷嘴的细节。
图2A示出护罩和喷嘴总成。
图2B是图2A的涡轮喷嘴总成的后视图。
图2C是沿着图2A的线2C-2C截取的截面图。
图2D示出细节。
具体实施方式
图1中示出了并入涡轮转子22的空气循环机20。压缩机转子32接收压缩空气126的源且进一步压缩空气。压缩空气被输送到入口中且流过涡轮转子22且到达出口26。出口26连通到飞机机舱中。涡轮转子22驱动轴23来继而旋转风扇转子122和压缩机转子32。
初级喷嘴28和次级喷嘴21在当来自入口24的空气接近涡轮转子22时调节所述空气。
如图1B中所示，涡轮转子22关于初级喷嘴28径向向内定位。护罩50并入有次级喷嘴21，且被定位成围绕转子22且在下游方向上从初级喷嘴28行进。喷嘴滑动器52由弹簧54背离喷嘴21和28进行偏置。
在落地操作期间，涡轮入口腔室24中的压力足够高来克服来自弹簧54的力。因此，如图所示，滑动器52处于闭合位置。
在较高高度，上述关系不再正确且滑动器52可移动到如这个图中所示的左侧且增大喷嘴流量面积。需要更多空气来冷却落地的飞机机舱，且这个喷嘴组合在相关联的飞机落地时提供更多空气。
如图2A中所示，次级喷嘴21包括护罩50，其沿着中心轴C向内弯曲。板54具有在与护罩50的方向相反的方向上延伸的多个叶片52。如清晰可见，护罩延伸到转子22下游的位置，且叶片52在转子22的上游。
如图2B中所示，存在多个叶片52。在一个实施方案中，存在19个叶片。
如图2C中所示，叶片52从板54延伸达距离d1。如图2D中所示，相邻叶片52间隔最近距离或宽度d2。在实施方案中，d1是.040英寸(1.02厘米)，且d2是.322英寸(.818厘米)。在全部19个叶片之间界定且在上述高度和宽度处的总流量面积是.245平方英寸(1.581平方厘米)。
喷嘴21和护罩50具有碳化钨腐蚀涂层。护罩和喷嘴127由铝基体形成且接着具有碳化钨腐蚀涂层。优选地，利用连续燃烧来提供高速氧燃料涂层技术。
在实施方案中，d1与d2的比介于.1091与.1401之间。总喷嘴流量面积介于.2148平方英寸与.2759平方英寸之间。
一种维修空气循环机20的方法包括以下步骤：从涡轮转子22邻近处的位置移除喷嘴和护罩组合21/50。移除的喷嘴和护罩组合由更换的喷嘴和护罩组合21/50更换。
题目是Turbine Nozzle for Air Cycle Machines且与本文同一日期提交的共同未决申请案序列号13/869053、代理案号第PA25466US号；第67010-490US1号中公开和要求了初级喷嘴28的细节。
虽然已经公开本发明的实施方案，但此项技术的一般工作人员将意识到某些修改可在本公开的范围内。出于这个原因，以上权利要求应被研究来决定本公开的真实范围和内容。

Claims (20)

1.一种用于空气循环机中的喷嘴和护罩，其包括：
板和护罩，所述护罩相对于所述板在第一轴向方向上绕着所述护罩的中心轴弯曲；
多个叶片，其在第二轴向方向上背离所述板延伸，其中所述多个叶片背离所述板延伸一个高度和定义为两个相邻叶片之间的最近距离的宽度，所述高度与所述宽度的比介于.1091与.1401之间。
2.根据权利要求1所述的用于空气循环机中的喷嘴和护罩，其中存在19个周向间隔的所述叶片。
3.根据权利要求2所述的用于空气循环机中的喷嘴和护罩，其中在全部19个所述叶片之间界定总流量面积且所述总流量面积介于.2148平方英寸与.2759平方英寸之间(1.3856平方厘米到1.7799平方厘米)。
4.根据权利要求3所述的喷嘴和护罩，其中所述板和所述护罩由具有碳化钨防腐涂层的基体铝材料形成。
5.根据权利要求1所述的用于空气循环机中的喷嘴和护罩，其中在全部19个所述叶片之间界定总流量面积且所述总流量面积介于.2148平方英寸与.2759平方英寸之间(1.3856平方厘米到1.7799平方厘米)。
6.根据权利要求1所述的喷嘴和护罩，其中所述板和所述护罩由具有碳化钨防腐涂层的基体铝材料形成。
7.一种空气循环机，其包括：
涡轮转子，其被构造成驱动轴，且压缩机转子由所述轴驱动，且风扇转子由所述轴驱动；和
护罩和喷嘴组合，其提供在所述涡轮转子邻近处，其中所述喷嘴处于所述涡轮转子的上游位置，且所述护罩弯曲到所述涡轮转子的下游位置，且所述护罩和喷嘴包括板和所述护罩，所述护罩相对于所述板在第一轴向方向上绕着所述护罩的中心轴弯曲；
多个叶片，其在第二轴向方向上背离所述板延伸，其中所述多个叶片背离所述板延伸一个高度和定义为两个相邻叶片之间的最近距离的宽度，所述高度与所述宽度的比介于.1091与.1401之间。
8.根据权利要求7所述的空气循环机，其中存在19个周向间隔的所述叶片。
9.根据权利要求8所述的空气循环机，其中在全部19个所述叶片之间界定总流量面积且所述总流量面积介于.2148平方英寸与.2759平方英寸之间(1.3856平方厘米到1.7799平方厘米)。
10.根据权利要求9所述的空气循环机，其中所述板和所述护罩由具有碳化钨防腐涂层的基体铝材料形成。
11.根据权利要求7所述的空气循环机，其中在全部19个所述叶片之间界定总流量面积且所述总流量面积介于.2148平方英寸与.2759平方英寸之间(1.3856平方厘米到1.7799平方厘米)。
12.根据权利要求11所述的空气循环机，其中所述喷嘴与滑动器相关联，所述滑动器取决于流动条件相对于所述喷嘴移动以改变流量面积，其中所述滑动器在闭合位置与打得更开的位置之间移动，且所述总流量面积在所述闭合位置界定。
13.根据权利要求12所述的空气循环机，其中所述滑动器被偏置到所述更打开位置。
14.根据权利要求7所述的空气循环机，其中所述板和所述护罩由具有碳化钨防腐涂层的基体铝材料形成。
15.一种维修空气循环机的方法，其包括以下步骤：
(a)从空气循环机中涡轮转子邻近处的位置移除喷嘴和护罩组合，且用更换的护罩和喷嘴组合来更换所述移除的护罩和喷嘴组合；和
(b)所述更换的喷嘴和护罩组合包括：板和护罩，所述护罩相对于所述板在第一轴向方向上绕着所述护罩的中心轴弯曲；和多个叶片，其在第二轴向方向上背离所述板延伸，其中所述多个叶片背离所述板延伸一个高度和定义为两个相邻叶片之间的最近距离的宽度，所述高度与所述宽度的比介于.1091与.1401之间。
16.根据权利要求15所述的方法，其中存在19个周向间隔的所述叶片。
17.根据权利要求16所述的方法，其中在全部19个所述叶片之间界定总流量面积且所述总流量面积介于.2148平方英寸与.2759平方英寸之间(1.3856平方厘米到1.7799平方厘米)。
18.根据权利要求17所述的方法，其中所述板和所述护罩由具有碳化钨防腐涂层的基体铝材料形成。
19.根据权利要求15所述的方法，其中在全部19个所述叶片之间界定总流量面积且所述总流量面积介于.2148平方英寸与.2759平方英寸之间(1.3856平方厘米到1.7799平方厘米)。
20.根据权利要求15所述的方法，其中所述板和所述护罩由具有碳化钨防腐涂层的基体铝材料形成。
CN201410168590.9A 2013-04-24 2014-04-24 用于空气循环机的涡轮喷嘴和护罩 Pending CN104121042A (zh)

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US13/869051 2013-04-24
US13/869,051 US10087760B2 (en) 2013-04-24 2013-04-24 Turbine nozzle and shroud for air cycle machine

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US11293451B2 (en) * 2019-10-02 2022-04-05 Hamilton Sundstrand Corporation Coating for compressor outlet housing

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