CN112771249B - 用于涡轮机涡轮的组件 - Google Patents
用于涡轮机涡轮的组件 Download PDFInfo
- Publication number
- CN112771249B CN112771249B CN201980055163.0A CN201980055163A CN112771249B CN 112771249 B CN112771249 B CN 112771249B CN 201980055163 A CN201980055163 A CN 201980055163A CN 112771249 B CN112771249 B CN 112771249B
- Authority
- CN
- China
- Prior art keywords
- pin
- ring sector
- assembly
- radial
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 10
- 239000011153 ceramic matrix composite Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- YPIMMVOHCVOXKT-UHFFFAOYSA-N Multisatin Natural products O=C1C(C)C2C=CC(=O)C2(C)C(OC(=O)C(C)=CC)C2C(=C)C(=O)OC21 YPIMMVOHCVOXKT-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910000816 inconels 718 Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- -1 japan Chemical compound 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/243—Flange connections; Bolting arrangements
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
- F16B23/0038—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0061—Specially shaped nuts or heads of bolts or screws for rotations by a tool with grooves, notches or splines on the external peripheral surface designed for tools engaging in radial direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/005—Set screws; Locking means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
- F16B39/06—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw with a pin or staple parallel to the bolt axis
-
- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
-
- 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
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
-
- 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
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
- F05D2230/642—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins using maintaining alignment while permitting differential dilatation
-
- 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
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
- F05D2230/644—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins for adjusting the position or the alignment, e.g. wedges or eccenters
-
- 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
- F05D2240/11—Shroud seal segments
-
- 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
- F05D2240/14—Casings or housings protecting or supporting assemblies within
-
- 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
- F05D2260/30—Retaining components in desired mutual position
- F05D2260/31—Retaining bolts or nuts
-
- 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
- F05D2260/30—Retaining components in desired mutual position
- F05D2260/36—Retaining components in desired mutual position by a form fit connection, e.g. by interlocking
-
- 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
- F05D2260/30—Retaining components in desired mutual position
- F05D2260/37—Retaining components in desired mutual position by a press fit connection
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
- F05D2300/6033—Ceramic matrix composites [CMC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
本发明涉及一种用于涡轮机涡轮的组件(2),包括由CMC制成的至少一个环扇区(8)以及一支撑壳体(6),所述支撑壳体(6)包括上游凸缘(18)和下游凸缘(20),每个环扇区均设置在所述上游凸缘(18)和下游凸缘(20)之间,每个环扇区均包括一具有径向外表面(10b)的底座,从所述底座沿径向延伸有两个凸耳(12、14),每个环扇区的凸耳均通过轴向销(22a、24a)固定在所述支撑壳体的两个凸缘之间,每个轴向销均接合在环支撑壳体的一个凸缘中并且接合在与该凸缘相对的环扇区的凸耳中,对于每个环扇区,该组件还包括至少一个径向固定销(34)以及用于防止固定销旋转的防旋转设备(38),所述径向固定销(34)旋入支撑壳体内并且沿径向抵靠所述至少一个环扇区的一个凸耳以将所述环扇区保持在适当位置。
Description
技术领域
本发明涉及航空涡轮机的通用领域。然而,本发明也可应用于任何其他燃气轮机发动机。
背景技术
陶瓷基复合材料(CMC)以其在高温下保持机械性能而众所周知,这使得它们能够用于制造热结构部件。
在航空燃气涡轮发动机中,提高效率和减少某些污染物排放意味着需要在更高的温度下运行。对于所有的金属涡轮环,有必要冷却该组件的所有部件,特别地承受非常热(通常高于金属材料可承受的温度)的气流的涡轮环。这种冷却对发动机的性能具有重大影响,由于所使用的冷却流从发动机的主流中排出。而且,将金属用于涡轮环限制了在涡轮水平增加温度的可能性,然而这可能提高航空发动机的性能。
此外,金属涡轮环组件在热流的作用下变形,这改变了在流道水平的游隙,并且因此改变涡轮的性能。
这就是为什么已经设想了将CMC用于发动机的多种热部件,特别地由于CMC具有密度与常规使用的耐热金属相比更低的额外优点。
因此,在文献US 2012/0027572中详细描述了用单一CMC部件制造涡轮环的扇区。环扇区包括一个底座,其径向内表面用于界定涡轮机的气体管道,以及一个径向外表面,两个凸耳从所述径向外表面径向地延伸,所述凸耳的端部固定在金属环支撑结构的两个凸缘之间。
因此,使用CMC环扇区可以明显地减少冷却涡轮环所需的通风。然而,具有与金属材料不同的机械性能的CMC,必须重新设计其集成以及将其定位在涡轮机内的方式。具体地,CMC并不承受过盈装配(通常用于金属环),并且其热膨胀低于金属材料。因此,为了解决该问题,已知使用轴向销来固定环扇区的凸耳,所述轴向销每个都接合在环支撑结构的一个夹具中。
然而,这种类型的组件具有以下缺点,即径向游隙仍存在于被提供用于轴向销通过的环扇区的孔中,该游隙能够导致环在涡轮内的径向运动。然而,这种运动直接地表现为游隙在叶片末端处的变化,以及因此表现为对发动机性能的直接影响。
发明目的和概述
因此,本发明的主要目的是提供一种不具有这些缺点的涡轮组件。
得益于一种环绕一轴线延伸的涡轮机涡轮的组件实现了这一目的,所述组件包括由陶瓷基质复合材料制成的至少一个角形环扇区以及一种设置在所述至少一个环扇区周围的支撑壳体,所述支撑壳体包括两个凸缘,分别为上游凸缘和下游凸缘,每个环扇区设置在所述两个凸缘之间,每个环扇区包括一个具有径向内表面和径向外表面的底座,从所述底座径向地延伸有两个凸耳,每个环扇区的凸耳通过轴向销固定在所述支撑壳体的两个凸缘之间,每个轴向销接合在环支撑壳体的一个凸缘中并且接合在面对所述凸缘的环扇区的凸耳中,根据本发明,对于每个环扇区,所述组件进一步包括至少一个径向固定销以及用于旋转地锁定所述至少一个径向固定销的防旋转设备,所述径向固定销旋入所述支撑壳体内,并且径向地抵靠所述至少一个环扇区的一个凸耳以将所述环扇区保持在适当位置。
根据本发明的组件值得注意,因为本发明提出了采用与环扇区的凸耳直接接触的径向固定销,从而将环保持在适当位置并且因此避免了其在涡轮机内的任何径向移动。此外,这些径向固定销旋入到支撑壳体内,这使它们具有可调节的位置,以占据在轴向销水平处的残余径向游隙。此外,根据本发明的组件包括用于旋转地锁定径向固定销的防旋转设备,这避免了这些销松动。最后,该组件的径向固定销可拆卸。
优选地,将每个径向固定销旋入到一种装配在所述支撑壳体中的衬套内。该衬套构成一种用于在不必使用焊接的情况下接收所述径向固定销的中间部件。
在这种情况下,有利地通过一种径向***的开口销将每个径向固定销旋转地锁定在所述衬套内侧,所述开口销设置在所述径向固定销和所述衬套之间。因此,所述衬套容纳有所述径向固定销和所述开口销,这使得整体解决方案可移除和可修复。
在这种情况下,每个径向固定销可在其周边包括至少一个盲钻孔,所述盲钻孔优选地包括一个螺纹孔,所述螺纹孔沿所述径向固定销的纵向方向延伸,从而可以将所述开口销***在所述径向固定销和所述衬套之间。
类似地,每个径向固定销可在其周边包括环绕所述径向固定销的纵轴均匀分布的多个盲钻孔。
仍然在这种情况下,每个衬套可包括一种用于接收所述径向固定销的螺纹孔,所述衬套的孔设置有沿所述衬套的纵向方向延伸的至少一个螺纹孔,从而能够旋紧所述径向固定销。
对于每个环扇区,所述两个凸耳优选地每个都通过彼此相对周向地偏移的两个轴向销被固定在支撑壳体的两个凸缘之间,并且其中,每个轴向销优选地与一个径向地抵靠在与轴向销垂直的环扇区的相应凸耳的径向固定销相关联。
每个径向固定销可包括一个六角头凹槽,以允许将其旋入到相应衬套内。每个衬套可装配在支撑壳体中,并通过过盈配合固定在所述支撑壳体中。
本发明的另一主题是一种涡轮机,其包括如先前定义的组件。
附图说明
参考附图,通过以下给出的描述,本发明的其他特征和优点将变得显而易见,所述附图没有任何限制地图示了本发明的一种示例性实施例。在图中:
-图1是根据本发明的涡轮环组件的纵剖视图;
-图2是一种示出根据本发明的涡轮扇区的组件的分解透视图;
-图3是根据本发明的涡轮环组件的径向固定销的透视图;
-图4示出了根据本发明对图3的径向固定销进行旋转地锁定的示例。
具体实施方式
图1在纵剖视图中表示了根据本发明的环绕轴Y-Y延伸的涡轮组件2。
该组件2具体包括由陶瓷基质复合材料(CMC)材料制成的涡轮环4以及由金属环构成的支撑壳体6。涡轮环4围绕一组旋转叶片(未示出)。
此外,涡轮环4由多个环扇区8形成,这些环扇区8端对端地周向放置以形成一个环。在图1中,箭头DA表示涡轮环的轴向方向,而箭头DR表示涡轮环的径向方向。
如图2更详细地示出,每个环扇区8都具有基本倒置的π(或π)形,其中一个部件10形成底座。
形成底座的该部件10设置有径向内表面10a,其用于界定气体管道并且通常设置有一层耐磨涂层(图中未示出)。
两个凸耳–即上游凸耳12和下游凸耳14–从形成底座的部件10的径向外表面10b沿径向延伸。这些凸耳12、14在环扇区8的整体宽度上(沿周向方向)延伸。
如图1所示,支撑壳体6可以是涡轮壳体的整体部分,并且被定位在涡轮环周围。支撑壳体可替代地连接到涡轮壳体上以形成单一部件。它包括径向向内延伸的上游环形凸缘18和下游环形凸缘20。
每个环扇区8的凸耳12、14被预加载地装配在环支撑结构的相应环形凸缘18、20之间。
而且,通过轴向锁定销保持环扇区。更准确地说,后者的相应凸耳通过彼此相对周向偏移的轴向销22、24被固定在支撑壳体的两个凸缘之间。
如图2所示,每个环扇区8的上游凸耳12在两个径向凸起12a、12b的水平设置有两个轴向孔26a、26b,所述轴向孔26a、26b彼此相对周向地偏移,并且每个都能够由轴向锁定销22a、22b穿过。
类似地,每个环扇区8的下游凸耳14在两个径向凸起14a、14b的水平设置有两个轴向孔28a、28b,所述轴向孔28a、28b彼此相对地沿周向偏移,并且每个都能够由轴向锁定销24a、24b穿过。
此外,支撑壳体6的上游凸缘18包括彼此相对地沿周向偏移的多个轴向孔30。类似地,下游凸缘20包括彼此相对沿周向偏移的多个轴向孔32。这些孔30、32将由轴向锁定销22a、22b、24a、24b穿过。
此外,由密封接片(图中未示出)提供扇区间密封,所述密封接片安装在凹槽10c中,所述凹槽10c在沿周向面对两个环扇区8的表面中彼此面对,所述环扇区8端对端地沿周向放置。
通过形成一具有与环扇区相似形状的纤维预制件并用陶瓷基质使环扇区致密化,上述的每个环扇区8均由陶瓷基质复合(CMC)材料制成。
对于纤维预制件的制造,可以使用陶瓷纤维,例如SiC纤维细丝,例如日本公司Nippon Carbon以“Nicalon”的商标售卖的SiC纤维细丝,或碳纤维细丝。
有利地通过三维编织或多层编织制造该纤维预制件,其中松散区域的成形可以使对应于环扇区的凸耳12和14的预制件部件移开。
编织可以为互锁式。可使用其他三维或多层织物,例如多帆布或多缎纹织物。读者例如参考文献WO 2006/136755。
在编织后,可以使坯料成形以获得一由陶瓷基质加固和致密化的环扇区预制件,特别是通过本身众所周知的化学气相渗透(CVI)能够实现该致密化。
文献US 2012/0027572具体描述了制造CMC环扇区的详细示例。
根据本发明,对于每个环扇区8提供了至少一个径向固定销以及用于旋转地锁定这些径向固定销的设备,所述径向固定销旋入到支撑壳体6内并抵靠环扇区的每个凸耳以将涡轮环保持在适当位置。
如图1和2所示,每个轴向锁定销22a、22b、24a、24b都与一个径向地抵靠与轴向销垂直的环扇区的相应凸耳的径向固定销34相关联。
更准确地说,这些固定销34沿径向抵靠环扇区的上游凸耳12的一个径向凸起12a、12b,并且抵靠所述环扇区的下游凸耳14的一个径向凸起14a、14b。
该径向轴承可以减少环扇区的凸耳的孔26a、26b、28a、28b中残余的径向游隙,并且因此避免了环扇区的任何径向移动。
每个固定销34旋入到衬套36内,所述衬套36本身装配到支撑壳体6中,并且例如通过过盈配合固定在支撑壳体6中。为此,每个衬套36均包括一个沿其整体高度被车螺纹的孔36a(螺纹在图中未示出)。
另外,建议通过一在径向固定销和衬套之间径向地***到衬套中的开口销38,将每个径向固定销34旋转地锁定在相应衬套36的内侧。
为此,如图3和4更详细地示出的那样,每个径向固定销34在其外周边均包括至少一个螺纹孔40,所述螺纹孔沿径向固定销的纵向方向(即沿其纵轴X-X)在其高度的至少一部分上延伸。
优选地,提供了环绕每个径向固定销34的纵轴X-X均匀分布的多个螺纹孔40。因此,在图3和4的示例中,这些螺纹孔的数量为六个。
以相同的方式并且以互补的方式,每个衬套的螺纹孔36a配备有至少一个沿衬套纵向方向延伸的螺纹孔42。
径向固定销的螺纹孔40和衬套36的螺纹孔42形成与开口销38的尺寸大致对应的切口,以便能够将后者***在径向固定销和衬套之间。当***开口销时,它们防止径向固定销围绕它们的纵轴X-X转动,从而旋转地锁定它们。
将会注意的是,如图3所示,每个径向固定销34均可包括一个六角头凹槽44,从而使得可将其旋入到相应衬套的孔内。
Claims (11)
1.一种用于涡轮机涡轮的组件,该组件围绕一轴线延伸,并包括由陶瓷基质复合材料制成的至少一个环扇区以及设置在所述至少一个环扇区周围的支撑壳体,所述支撑壳体包括两个凸缘,分别为上游凸缘和下游凸缘,每个环扇区均设置在所述上游凸缘和下游凸缘之间,每个环扇区均包括一个具有径向内表面和径向外表面的底座,两个凸耳从所述底座沿径向延伸,每个环扇区的凸耳均通过轴向销固定在所述支撑壳体的两个凸缘之间,每个所述轴向销均接合在环支撑壳体的一个凸缘中并且接合在面对所述凸缘的环扇区的凸耳中,其中,对于每个环扇区,所述组件还包括至少一个径向固定销以及用于旋转地锁定至少一个所述径向固定销的防旋转设备,其中所述径向固定销旋入所述支撑壳体内,并且沿径向抵靠所述至少一个环扇区的一个凸耳,以将所述环扇区保持在适当位置。
2.根据权利要求1所述的组件,其中,每个所述径向固定销均旋入到一装配在所述支撑壳体中的衬套内。
3.根据权利要求2所述的组件,其中,通过一沿径向***的开口销将每个径向固定销旋转地锁定在所述衬套内,所述开口销设置在所述径向固定销与所述衬套之间。
4.根据权利要求3所述的组件,其中,每个所述径向固定销在其周边均包括至少一个盲钻孔,所述盲钻孔包括一个螺纹孔,所述螺纹孔沿所述径向固定销的纵向方向延伸,从而使得可将所述开口销***在所述径向固定销和所述衬套之间。
5.根据权利要求4所述的组件,其中,每个所述径向固定销在其周边均包括围绕所述径向固定销的纵轴线均匀分布的多个盲钻孔。
6.根据权利要求4所述的组件,其中,每个所述衬套均包括一用于接收所述径向固定销的螺纹孔,所述衬套的孔设置有沿所述衬套的纵向方向延伸的至少一个螺纹孔,从而能够旋紧所述径向固定销。
7.根据权利要求1所述的组件,其中,对于每个环扇区,所述两个凸耳每个都通过彼此沿周向偏移的两个轴向销被固定在所述支撑壳体的两个凸缘之间,并且每个轴向销均与一个沿径向抵靠与所述轴向销垂直的环扇区的相应凸耳的径向固定销相关联。
8.根据权利要求2所述的组件,其中,每个所述径向固定销均包括一个六角头凹槽,以使所述径向固定销可旋入到相应的衬套中。
9.根据权利要求2所述的组件,其中,每个衬套均装配在所述支撑壳体中,并通过过盈配合固定在所述支撑壳体中。
10.根据权利要求1所述的组件,其中,每个轴向销均关联一径向固定销,所述径向固定销沿径向抵靠与所述轴向销垂直的环扇区的相应凸耳。
11.一种涡轮机,包括根据权利要求1所述的组件。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1858713A FR3086327B1 (fr) | 2018-09-25 | 2018-09-25 | Ensemble pour une turbine de turbomachine |
FR1858713 | 2018-09-25 | ||
PCT/FR2019/052234 WO2020065199A1 (fr) | 2018-09-25 | 2019-09-24 | Ensemble pour une turbine de turbomachine et turbomachine associée |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112771249A CN112771249A (zh) | 2021-05-07 |
CN112771249B true CN112771249B (zh) | 2022-06-07 |
Family
ID=65243840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201980055163.0A Active CN112771249B (zh) | 2018-09-25 | 2019-09-24 | 用于涡轮机涡轮的组件 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11585241B2 (zh) |
EP (1) | EP3857030B1 (zh) |
CN (1) | CN112771249B (zh) |
FR (1) | FR3086327B1 (zh) |
WO (1) | WO2020065199A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3142504A1 (fr) | 2022-11-24 | 2024-05-31 | Safran Ceramics | Ensemble de turbine pour une turbomachine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1753154A (en) * | 1927-02-24 | 1930-04-01 | Martin L Martus | Headless set screw |
CN105189937A (zh) * | 2013-03-14 | 2015-12-23 | 涡轮梅坎公司 | 涡轮机的涡轮环 |
CN108138576A (zh) * | 2015-10-05 | 2018-06-08 | 赛峰航空器发动机 | 具有轴向保持的涡轮环组件 |
FR3064022A1 (fr) * | 2017-03-16 | 2018-09-21 | Safran Aircraft Engines | Ensemble d'anneau de turbine |
FR3064024A1 (fr) * | 2017-03-16 | 2018-09-21 | Safran Aircraft Engines | Ensemble d'anneau de turbine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5224825A (en) * | 1991-12-26 | 1993-07-06 | General Electric Company | Locator pin retention device for floating joint |
FR2887601B1 (fr) | 2005-06-24 | 2007-10-05 | Snecma Moteurs Sa | Piece mecanique et procede de fabrication d'une telle piece |
US7883308B2 (en) | 2007-11-19 | 2011-02-08 | Kuo-Chen Hung | Slotted set screw |
CN102272419A (zh) | 2009-03-09 | 2011-12-07 | 斯奈克玛 | 涡轮环组件 |
GB201314061D0 (en) | 2013-08-06 | 2013-09-18 | Rolls Royce Plc | Attachment device for non-permanently attaching a child component to a parent component |
FR3049003B1 (fr) * | 2016-03-21 | 2018-04-06 | Safran Aircraft Engines | Ensemble d'anneau de turbine sans jeu de montage a froid |
FR3056632B1 (fr) | 2016-09-27 | 2020-06-05 | Safran Aircraft Engines | Ensemble d'anneau turbine comprenant un element de repartition de l'air de refroidissement |
-
2018
- 2018-09-25 FR FR1858713A patent/FR3086327B1/fr active Active
-
2019
- 2019-09-24 EP EP19794614.8A patent/EP3857030B1/fr active Active
- 2019-09-24 CN CN201980055163.0A patent/CN112771249B/zh active Active
- 2019-09-24 WO PCT/FR2019/052234 patent/WO2020065199A1/fr unknown
- 2019-09-24 US US17/279,286 patent/US11585241B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1753154A (en) * | 1927-02-24 | 1930-04-01 | Martin L Martus | Headless set screw |
CN105189937A (zh) * | 2013-03-14 | 2015-12-23 | 涡轮梅坎公司 | 涡轮机的涡轮环 |
CN108138576A (zh) * | 2015-10-05 | 2018-06-08 | 赛峰航空器发动机 | 具有轴向保持的涡轮环组件 |
FR3064022A1 (fr) * | 2017-03-16 | 2018-09-21 | Safran Aircraft Engines | Ensemble d'anneau de turbine |
FR3064024A1 (fr) * | 2017-03-16 | 2018-09-21 | Safran Aircraft Engines | Ensemble d'anneau de turbine |
Also Published As
Publication number | Publication date |
---|---|
US11585241B2 (en) | 2023-02-21 |
EP3857030B1 (fr) | 2022-05-11 |
EP3857030A1 (fr) | 2021-08-04 |
CN112771249A (zh) | 2021-05-07 |
FR3086327A1 (fr) | 2020-03-27 |
WO2020065199A1 (fr) | 2020-04-02 |
FR3086327B1 (fr) | 2020-12-04 |
US20220049626A1 (en) | 2022-02-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108699918B (zh) | 冷热时具有支承件的涡轮环组件 | |
CN109154208B (zh) | 不具有冷装配间隙的涡轮环组件 | |
CN109072705B (zh) | 在冷态下弹性保持的涡轮环组件 | |
CN110573695B (zh) | 涡轮环组件 | |
US11118477B2 (en) | Turbine ring assembly | |
US10619517B2 (en) | Turbine ring assembly | |
US10598045B2 (en) | Turbine ring assembly | |
US10415427B2 (en) | Turbine ring assembly comprising a cooling air distribution element | |
CN107429574B (zh) | 包括多个由陶瓷基体复合材料制成的环扇区的涡轮环组件 | |
CN110537005B (zh) | 涡轮环组件 | |
EP2538141B1 (en) | Reverse flow combustor | |
US10858958B2 (en) | Turbine ring assembly held by jaw coupling | |
CN111630252B (zh) | 涡轮护罩组件 | |
US20160290144A1 (en) | Turbine ring assembly with inter-sector connections | |
US11753962B2 (en) | Element for distributing a cooling fluid and associated turbine ring assembly | |
CN112771249B (zh) | 用于涡轮机涡轮的组件 | |
GB2565007A (en) | Turbine ring assembly with cold setting | |
US10669874B2 (en) | Discourager for discouraging flow through flow path gaps | |
US20230116425A1 (en) | Turbine shroud assembly | |
US11149586B2 (en) | Turbine ring assembly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |