RU2001110911A - METHOD FOR PRODUCING STATOR DIAGRAPH IN STEAM TURBINE AND STATOR DIAGRAPH OBTAINED BY THIS METHOD - Google Patents

METHOD FOR PRODUCING STATOR DIAGRAPH IN STEAM TURBINE AND STATOR DIAGRAPH OBTAINED BY THIS METHOD

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Publication number
RU2001110911A
RU2001110911A RU2001110911/06A RU2001110911A RU2001110911A RU 2001110911 A RU2001110911 A RU 2001110911A RU 2001110911/06 A RU2001110911/06 A RU 2001110911/06A RU 2001110911 A RU2001110911 A RU 2001110911A RU 2001110911 A RU2001110911 A RU 2001110911A
Authority
RU
Russia
Prior art keywords
recesses
rings
stator
steam turbine
blades
Prior art date
Application number
RU2001110911/06A
Other languages
Russian (ru)
Other versions
RU2268371C2 (en
Inventor
Джузеппе ГЕЛЛИ
Original Assignee
Нуово Пиньоне Холдинг С.П.А.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from IT2000MI000870A external-priority patent/IT1317277B1/en
Application filed by Нуово Пиньоне Холдинг С.П.А. filed Critical Нуово Пиньоне Холдинг С.П.А.
Publication of RU2001110911A publication Critical patent/RU2001110911A/en
Application granted granted Critical
Publication of RU2268371C2 publication Critical patent/RU2268371C2/en

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Claims (8)

1. Способ изготовления диафрагмы (10) статора в паровой турбине или газовом расширителе, отличающийся тем, что он включает этап подготовки двух колец (12, 13), подвергаемых механической обработке отдельно для получения радиальных выемок (15, 15'), имеющих профиль лопаток (11) статорной ступени паровой турбины или газового расширителя и пригодных для последующего помещения в них лопаток (11), причем соответствующее количество паяльного материала (14, 14') в форме пасты помещают в выемки (15, 15'), и диафрагму (10) подвергают операции пайки твердым припоем в печи в условиях вакуума.1. A method of manufacturing a stator diaphragm (10) in a steam turbine or gas expander, characterized in that it includes the step of preparing two rings (12, 13) that are machined separately to obtain radial recesses (15, 15 ') having a blade profile (11) the stator stage of a steam turbine or gas expander and blades suitable for subsequent placement in them (11), and the corresponding amount of solder material (14, 14 ') in the form of a paste is placed in the recesses (15, 15'), and the diaphragm (10 ) subjected to brazing in the oven and in a vacuum. 2. Способ по п. 1, отличающийся тем, что этап подготовки колец (12, 13) осуществляют посредством механической обработки двух колец (12, 13) отдельно при помощи резки водяной струей для выполнения радиальных выемок (15, 15'), имеющих профиль лопаток (11), осуществляемой механическим станком с цифровым программным управлением. 2. The method according to p. 1, characterized in that the stage of preparation of the rings (12, 13) is carried out by machining two rings (12, 13) separately by cutting with a water jet to make radial recesses (15, 15 ') having a profile blades (11), carried out by a digitally controlled machine tool. 3. Способ по п. 1, отличающийся тем, что этап подготовки выемок (15, 15') в кольцах (12, 13) осуществляют вырезанием выемок (15, 15') лазером. 3. The method according to p. 1, characterized in that the stage of preparation of the recesses (15, 15 ') in the rings (12, 13) is carried out by cutting the recesses (15, 15') with a laser. 4. Способ по п. 1, отличающийся тем, что этап подготовки выемок (15, 15') в кольцах (12, 13) осуществляют вырезанием выемок (15, 15') электронно-разрядной обработкой. 4. The method according to p. 1, characterized in that the stage of preparation of the recesses (15, 15 ') in the rings (12, 13) is carried out by cutting the recesses (15, 15') by electron-discharge processing. 5. Способ по п. 1, отличающийся тем, что паяльный материал (14, 14') в форме пасты помещают в выемки (15, 15') и в зазоры между профилями лопаток (11) и выемками (15, 15') колец (12, 13). 5. The method according to p. 1, characterized in that the solder material (14, 14 ') in the form of a paste is placed in the recesses (15, 15') and in the gaps between the profiles of the blades (11) and the recesses (15, 15 ') of the rings (12, 13). 6. Способ по одному из предшествующих пунктов, отличающийся тем, что после выполнения операции пайки твердым припоем диафрагму (10) подвергают механической обработке в соответствии с конечными размерами и разрезают на два полукольца посредством электронно-разрядной обработки или лазером для завершающей установки внутрь корпуса паровой турбины или газового расширителя. 6. The method according to one of the preceding paragraphs, characterized in that after the brazing operation, the diaphragm (10) is machined in accordance with the final dimensions and cut into two half rings by electron-discharge processing or a laser for final installation inside the steam turbine body or gas expander. 7. Способ по одному из предшествующих пунктов, отличающийся тем, что операцию пайки твердым припоем осуществляют в печи в условиях вакуума. 7. The method according to one of the preceding paragraphs, characterized in that the brazing operation is carried out in a furnace under vacuum. 8. Диафрагма (10) статора для паровой турбины, отличающаяся тем, что она содержит два кольца (12, 13), обработанных отдельно для получения радиальных выемок (15, 15'), имеющих профиль лопаток (11) и пригодных для последующего помещения в них лопаток (11), причем соответствующее количество паяльного материала (14, 14') в форме пасты помещено в выемки (15, 15'). 8. The stator diaphragm (10) for a steam turbine, characterized in that it contains two rings (12, 13), processed separately to obtain radial recesses (15, 15 ') having the profile of the blades (11) and suitable for subsequent placement in blades (11), and the corresponding amount of solder material (14, 14 ') in the form of a paste is placed in the recesses (15, 15').
RU2001110911/06A 2000-04-18 2001-04-18 Method of manufacture of steam turbine stator diaphragm RU2268371C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2000A000870 2000-04-18
IT2000MI000870A IT1317277B1 (en) 2000-04-18 2000-04-18 PROCEDURE FOR THE REALIZATION OF A STATIC DIAPHRAGM IN A STEAM UNATURBINE AND STATIC DIAPHRAGM SO REALIZED.

Publications (2)

Publication Number Publication Date
RU2001110911A true RU2001110911A (en) 2003-02-27
RU2268371C2 RU2268371C2 (en) 2006-01-20

Family

ID=11444884

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001110911/06A RU2268371C2 (en) 2000-04-18 2001-04-18 Method of manufacture of steam turbine stator diaphragm

Country Status (8)

Country Link
EP (1) EP1148208B1 (en)
JP (1) JP2002038904A (en)
KR (1) KR100602283B1 (en)
CN (1) CN1316142C (en)
CZ (1) CZ299431B6 (en)
DE (1) DE60120549T2 (en)
IT (1) IT1317277B1 (en)
RU (1) RU2268371C2 (en)

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GB9815809D0 (en) 1998-07-22 1998-09-16 Appleton Robert P Casing running tool
US6800829B1 (en) * 2003-05-29 2004-10-05 General Electric Company Method and apparatus for repairing air-cooled airfoils
FR2860740B1 (en) * 2003-10-10 2007-03-02 Snecma Moteurs METHOD FOR BRAZING A TURBOMACHINE COMPRESSOR RECTIFIER
US7303112B2 (en) 2004-10-29 2007-12-04 United Technologies Corporation Repair of braze joint and article repaired
GB2436597A (en) 2006-03-27 2007-10-03 Alstom Technology Ltd Turbine blade and diaphragm
DE102008052602A1 (en) * 2008-10-21 2010-04-22 Siemens Aktiengesellschaft Swirler useful in burner of gas turbine, comprises blade having inlet openings, inner supply tube that supplies fuel to the openings and distributor feed that supplies fuel to blade, where the openings are produced by spark-erosion machine
ITCO20120014A1 (en) * 2012-04-06 2013-10-07 Nuovo Pignone Srl DIAPHRAGM RING OF STATHY STAKE, STEAM TURBINE AND METHOD
CN104454028A (en) * 2014-11-14 2015-03-25 东方电气集团东方汽轮机有限公司 Method for improving running efficiency of steam turbine generator unit in heat supply season
DE102016209210A1 (en) * 2016-05-27 2017-12-14 Schaeffler Technologies AG & Co. KG Hydrodynamic torque converter
CN109989791B (en) * 2019-04-03 2021-11-26 大唐东营发电有限公司 Steam turbine rotor cooling system

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US3909157A (en) * 1972-01-27 1975-09-30 Chromalloy American Corp Turbine nozzle-vane construction
JPS5322141A (en) * 1976-08-13 1978-03-01 Kawasaki Steel Co Backing strap for oneeside welding
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DE4023912A1 (en) * 1990-07-27 1992-01-30 Zbigniew Pagacz Rim star prodn. method - is for light alloy vehicle wheel and involves use of NC water jet
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