CN103671278B - 用于从机器移除内壳的方法 - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/04—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
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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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
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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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
- F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
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- 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
- F05D2230/68—Assembly methods using auxiliary equipment for lifting or holding
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- 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
- F05D2230/70—Disassembly methods
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49318—Repairing or disassembling
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
- Y10T29/49721—Repairing with disassembling
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49815—Disassembling
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49815—Disassembling
- Y10T29/49819—Disassembling with conveying of work or disassembled work part
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
本发明涉及用于从机器移除内壳的方法。一种用于从机器(1)移除内壳(5)的方法包括:移除外壳(2)的顶部部分(3);移除内壳(5)的顶部部分(6);移除内壳(5)的底部部分(7);在移除内壳(5)的底部部分(7)之前,将内壳(5)的底部部分(7)连接到转子(10),使得内壳(5)的底部部分(7)由转子(10)支承;然后围绕纵向轴线(11)旋转转子(10),以使得内壳(5)的底部部分(7)可卸下。
Description
技术领域
本公开涉及用于从机器移除内壳的方法。
机器一般是具有外壳、外壳内的内壳和内壳内的转子的机器。例如,这样的机器是轴向涡轮、轴向压缩机等。
背景技术
诸如轴向涡轮或压缩机的机器具有容纳内壳的外壳;内壳承载静叶。在内壳内容纳有承载叶片的转子。
叶片和静叶必须经受住非常严厉的运行条件,因而它们需要定期检查和控制。
已知不同的卸下静叶和叶片的方法。
例如可移除外壳和内壳的上部部分,然后还可移除转子,以便在内壳的底部部分处卸下静叶。
尽管如此,移除转子是非常耗时,因而优选避免这么做。
还已知移除外壳和内壳的上部部分,用环扇区(ring sector)代替内壳的上部部分,并然后在外壳和内壳的底部部分之间提供辊子。
照这样,内壳的底部部分可在辊子上旋转,从而使该底部部分到达机器的顶部处,使得可在不移除转子的情况下移除底部部分。
此方法可在内壳和外壳的相邻部分之间引起损伤。例如,这可由以下引起:内壳和外壳可能有相对轴向位移,使得内壳和外壳的通常隔开间隙的相邻表面进行接触。
发明内容
本公开的方面包括提供一种针对已知方法的备选方法,其允许抵消在旋转期间对内壳和外壳的相邻表面的损伤。
通过提供根据所附权利要求的方法来获得这些和另外的方面。
有利地,此方法允许内壳的旋转,而不需要从静止部分对内壳提供支承件(例如在内壳和外壳之间)。这些支承件可使内壳变形,并且因而改变转子和内壳之间的相对距离,带有损伤静叶和/或叶片和/或定子/定子隔热件和/或转子/转子隔热件的风险。
另外,此方法允许内壳围绕转子轴线旋转,但不是通过使内壳在支承件上滑动来执行旋转。这是有利的,因为内壳的公差使得转子和内壳之间的距离可在旋转(内壳在支承件上滑动)期间改变,这有损伤静叶和/或叶片和/或定子/定子隔热件和/或转子/转子隔热件的风险。
附图说明
根据对在附图中以非限制性示例的方式示出的方法的优选但非专有的实施例的描述,进一步的特性和优点将更加显而易见,其中:
图1至6显示方法的步骤;
图7至9显示支承件的不同的实施例;以及
图10显示方法的额外的可行步骤。
部件列表
1:机器
2:外壳
3:2的顶部部分
4:2的底部部分
5:内壳
6:5的顶部部分
7:5的底部部分
9:水平轴线
10:转子
11:纵向轴线
12:静叶
13:叶片
14:13的转子凹槽、座
15:支承件
17:10的表面
18:10的表面
19:环扇区
20:螺钉。
具体实施方式
机器1例如是轴向涡轮(诸如燃气涡轮发动机的涡轮或蒸汽涡轮)或轴向压缩机或类似的机器。
机器1包括带有顶部部分3和底部部分4的外壳2、以及带有顶部部分6和底部部分7的内壳5。外壳2和内壳5的顶部部分3、6和底部部分4、7被水平轴线9分开;另外,顶部部分3、6和底部部分4、7例如通过螺钉或螺栓或其它器件而连接在一起。
内壳5容纳带有纵向轴线11的转子10。
内壳5具有静叶12,并且转子10具有叶片13。
为了在不移除转子10的情况下移除内壳5,执行以下步骤。
移除外壳2的顶部部分3(图2);因此,也移除内壳5的顶部部分6(图3)。
将内壳5的底部部分7连接到转子10,并且使转子10围绕其纵向轴线11旋转,以使得内壳5的底部部分7可卸下。
在旋转转子10之前,将底部部分7连接到转子10,使得内壳5的底部部分7由转子10支承。
因此,移除内壳5的底部部分7。
将内壳5的底部部分7连接到转子10优选包括提供形状配合(form fitting)和/或摩擦连接。
优选地,形状配合和/或摩擦连接不包括夹持转子周边,因为,这可对转子隔热件引起损伤,以及/或者不利地影响转子轮廓。
在第一示例中(图7),提供形状配合和/或摩擦连接包括从转子凹槽14移除至少一个叶片13,提供至少一个支承件15,该支承件15在其一端具有与转子凹槽14的轮廓相对应的轮廓,将支承件15以所述一端连接到移除的至少一个转子叶片13的转子凹槽14中,将至少一个支承件15以其另一端连接到内壳5的底部部分7,例如通过螺栓连接。
在不同的示例中(图8),提供形状配合和/或摩擦连接包括将支承件15至少螺合到转子10;例如,图8显示螺钉20。
将支承件15螺合到转子10包括将支承件15螺纹连接到转子10的前表面17和/或后表面18。
优选地,提供两个或更多个支承件15。例如,可在底部部分7的侧部提供两个支承件15;备选地,可提供三个支承件15,两个支承件在底部部分7的侧部,且一个支承件在底部部分7的中心;总之,其它布置是可行的。
另外,即使不必要,也可将环扇区19连接到内壳5的底部部分7。
优选地,通过对转子前表面和/或后表面提供圆形槽并将板容纳在圆形槽中从而将环扇区19连接到转子。也可提供螺钉,螺钉连接到环扇区19(例如它们穿过环扇区19的孔口),并且固定到板上。
方法可还包括,在将内壳5的底部部分7连接到转子10之后,相对于转子10而调节内壳5的底部部分7的位置。
调节内壳5的底部部分7的位置优选包括使内壳7与转子隔开。换言之,使底部部分7移动更远离转子。
例如,可通过在两个元件中使用支承件15来实现调节,一个元件连接到转子,另一个元件在内壳7和可调连接元件(诸如螺钉和/或垫片)之间连接到内壳7和可调连接元件。
备选地,当使用环扇区19时,可通过由可调元件(诸如螺钉和/或垫片)将环扇区19连接到转子10以及将环扇区19连接到底部内壳7,从而实现调节。
使内壳5的底部部分7与转子隔开优选包括径向地移置内壳5的底部部分7。
当然,可彼此独立地提供所描述的特征。
在实践中,可根据需求和现有技术来随意选择所使用的材料和尺寸。
Claims (10)
1.一种用于从机器(1)移除内壳(5)的方法,所述机器(1)具有外壳(2)、在所述外壳(2)内的内壳(5)以及在所述内壳(5)内的转子(10),所述转子(10)具有纵向轴线(11),所述方法包括:
移除所述外壳(2)的顶部部分(3),
移除所述内壳(5)的顶部部分(6),
移除所述内壳(5)的底部部分(7),
其特征在于,在移除所述内壳(5)的所述底部部分(7)之前:
将所述内壳(5)的所述底部部分(7)连接到所述转子(10),使得所述内壳(5)的所述底部部分(7)由所述转子(10)支承,
相对于所述转子(10)而调节所述内壳(5)的所述底部部分(7)的位置,然后
使所述转子(10)围绕所述纵向轴线(11)旋转,以使得所述内壳(5)的所述底部部分(7)能够卸下。
2.根据权利要求1所述的方法,其特征在于,将所述内壳(5)的所述底部部分(7)连接到所述转子(10)包括提供形状配合和/或摩擦连接。
3.根据权利要求2所述的方法,其特征在于,提供形状配合和/或摩擦连接包括:
从转子凹槽(14)移除至少一个转子叶片(13),
提供至少一个支承件(15),该支承件(15)在其一端具有与所述转子凹槽(14)的轮廓相对应的轮廓,
将所述支承件(15)以所述一端连接到所述移除的至少一个转子叶片(13)的所述转子凹槽(14)中,
将所述支承件(15)以其另一端连接到所述内壳(5)的所述底部部分(7)。
4.根据权利要求2所述的方法,其特征在于,提供形状配合和/或摩擦连接包括将至少一个支承件(15)至少螺合到所述转子(10)。
5.根据权利要求4所述的方法,其特征在于,将所述支承件(15)螺合到所述转子(10)包括将所述支承件(15)螺纹连接到所述转子(10)的前表面(17)和/或后表面(18)。
6.根据权利要求3或4所述的方法,其特征在于,连接至少两个支承件(15)。
7.根据权利要求1所述的方法,其特征在于,还将环扇区(19)连接到所述内壳(5)的所述底部部分(7)。
8.根据权利要求2所述的方法,其特征在于,提供所述形状配合和/或摩擦连接不包括夹持所述转子周边。
9.根据权利要求1所述的方法,其特征在于,调节所述内壳(5)的所述底部部分(7)的位置包括使所述内壳(5)与所述转子隔开。
10.根据权利要求9所述的方法,其特征在于,使所述内壳(5)的所述底部部分(7)与所述转子隔开包括径向地移置所述内壳(5)的所述底部部分(7)。
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EP12183648.0 | 2012-09-10 | ||
EP12183648.0A EP2706198A1 (en) | 2012-09-10 | 2012-09-10 | Method for removing an inner casing from a machine |
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CN103671278B true CN103671278B (zh) | 2017-03-01 |
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EP (2) | EP2706198A1 (zh) |
JP (1) | JP5933496B2 (zh) |
KR (1) | KR101557274B1 (zh) |
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EP2706199B1 (en) * | 2012-09-10 | 2018-12-12 | Ansaldo Energia Switzerland AG | Method and guide for removing an inner casing from a turbomachine |
EP2921657A1 (en) * | 2014-03-20 | 2015-09-23 | Alstom Technology Ltd | Tool for removing an inner casing from a turbomachine |
WO2018042649A1 (ja) * | 2016-09-05 | 2018-03-08 | 三菱重工コンプレッサ株式会社 | 蒸気タービン組み立て方法、蒸気タービン、及び、上半組み立て体 |
WO2023137590A1 (en) * | 2022-01-18 | 2023-07-27 | Siemens Energy Global GmbH & Co. KG | Rolling device for inner casing part of gas turbine |
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US5685693A (en) * | 1995-03-31 | 1997-11-11 | General Electric Co. | Removable inner turbine shell with bucket tip clearance control |
US5690469A (en) * | 1996-06-06 | 1997-11-25 | United Technologies Corporation | Method and apparatus for replacing a vane assembly in a turbine engine |
EP0952311A1 (en) * | 1998-04-06 | 1999-10-27 | Siemens Aktiengesellschaft | Turbo machine with an inner housing and an outer housing |
DE10020229A1 (de) * | 2000-04-25 | 2001-10-31 | Alstom Power Nv | Verfahren und Vorrichtung zur Demontage einer Turbinenschaufel |
JP3777440B2 (ja) | 2002-09-26 | 2006-05-24 | 川崎重工業株式会社 | ガスタービンの点検方法およびそれに用いる治具 |
WO2006103152A1 (de) * | 2005-03-29 | 2006-10-05 | Alstom Technology Ltd | Verfahren und vorrichtung zum austausch von bauteilen einer strömungsrotationsmaschine |
WO2008012195A1 (de) * | 2006-07-24 | 2008-01-31 | Siemens Aktiengesellschaft | Verfahren zum herausdrehen einer ringhälfte eines insgesamt ringförmigen leitapparats aus einer unteren gehäusehälfte einer axial durchströmbaren, stationären strömungsmaschine, montagevorrichtung, montagevorrichtungsverbund und hilfshalbring hierfür |
KR101148813B1 (ko) * | 2007-10-23 | 2012-05-24 | 미츠비시 쥬고교 가부시키가이샤 | 날개 고리를 떼어내는 방법, 날개 고리를 떼어내는 부재 |
EP2107219A1 (de) | 2008-04-03 | 2009-10-07 | Siemens Aktiengesellschaft | Leitscheibensegment und Leitschaufelträger für ein horizontal geteiltes Turbomaschinengehäuse |
US8677591B2 (en) | 2008-04-28 | 2014-03-25 | General Electric Company | Methods and system for disassembling a machine |
GB0814314D0 (en) * | 2008-08-06 | 2008-09-10 | Rolls Royce Plc | A Method of assembling a multi-stage turbine or compressor |
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2012
- 2012-09-10 EP EP12183648.0A patent/EP2706198A1/en not_active Withdrawn
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2013
- 2013-09-04 CA CA2826097A patent/CA2826097C/en not_active Expired - Fee Related
- 2013-09-06 KR KR1020130107062A patent/KR101557274B1/ko not_active IP Right Cessation
- 2013-09-09 EP EP13183462.4A patent/EP2706200B1/en active Active
- 2013-09-10 JP JP2013187381A patent/JP5933496B2/ja not_active Expired - Fee Related
- 2013-09-10 US US14/022,608 patent/US9162329B2/en active Active
- 2013-09-10 CN CN201310408320.6A patent/CN103671278B/zh active Active
Also Published As
Publication number | Publication date |
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EP2706198A1 (en) | 2014-03-12 |
CA2826097A1 (en) | 2014-03-10 |
US9162329B2 (en) | 2015-10-20 |
EP2706200B1 (en) | 2017-08-02 |
JP5933496B2 (ja) | 2016-06-08 |
KR20140034074A (ko) | 2014-03-19 |
RU2013141400A (ru) | 2015-03-20 |
CA2826097C (en) | 2016-03-29 |
KR101557274B1 (ko) | 2015-10-05 |
US20140068911A1 (en) | 2014-03-13 |
JP2014051985A (ja) | 2014-03-20 |
CN103671278A (zh) | 2014-03-26 |
EP2706200A1 (en) | 2014-03-12 |
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