EP2802748A1 - Refroidisseur à hélice pour turbomachine - Google Patents

Refroidisseur à hélice pour turbomachine

Info

Publication number
EP2802748A1
EP2802748A1 EP13713767.5A EP13713767A EP2802748A1 EP 2802748 A1 EP2802748 A1 EP 2802748A1 EP 13713767 A EP13713767 A EP 13713767A EP 2802748 A1 EP2802748 A1 EP 2802748A1
Authority
EP
European Patent Office
Prior art keywords
housing
cooling channel
cooling
screw
channel
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.)
Granted
Application number
EP13713767.5A
Other languages
German (de)
English (en)
Other versions
EP2802748B1 (fr
Inventor
Eduard Jenikejew
Yevgen Kostenko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP13713767.5A priority Critical patent/EP2802748B1/fr
Publication of EP2802748A1 publication Critical patent/EP2802748A1/fr
Application granted granted Critical
Publication of EP2802748B1 publication Critical patent/EP2802748B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/14—Casings modified therefor
    • F01D25/145—Thermally insulated casings
    • 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
    • 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
    • F05D2220/31—Application in turbines in steam 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
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • 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

Definitions

  • the invention relates to a turbomachine comprising a housing comprising an upper housing part, a lower housing part and a flow channel arranged in the housing, wherein the Strö ⁇ flow channel has a Strömungskanalabdampf syndromem, wherein the housing part via screws ver ⁇ bindable to the lower housing part, wherein the screw is designed as a stud and a cooling channel formed along the axial direction of the stud, the cooling passage having a cooling passage inlet and a cooling passage outlet.
  • steam turbines In steam power plants, steam turbines are used, which apply an electrical output of up to 1,600 megawatts Kings ⁇ nen. For thermodynamic reasons, a steam turbine is divided into so-called sub-turbines, which have a common shaft.
  • the high-pressure turbine part comprises a réellege ⁇ housing, which consists of an upper part and a lower part and is held together by means of screw connections. Due to the high temperatures and the temporal behavior of the temperature change, time- and temperature-dependent relaxations occur. As a result, it is possible that the tension of the housing and thus the tightness during operation diminishes, which can lead to leakage and is accompanied by a loss of efficiency.
  • a turbomachine umfas ⁇ send a housing of an upper housing part, a housing ⁇ lower part and, disposed in the housing flow channel, said flow channel having a Strömungskanalabdampf syndromem, wherein the upper housing part by means of screws with the Ge ⁇ koruseunterteil is connectable, said screw is designed as a pin ⁇ screw and has a trained along the axial direction of the stud screw cooling channel where ⁇ at the cooling channel has a cooling duct inlet and adekanal- outlet, wherein the cooling duct inlet is Strömungstech ⁇ nisch connected to the flow channel, thedekanalauslass aerodynamically is connected to the Strömungskanalab ⁇ steam room.
  • the invention proposes to use a known cooling hole in the stud bolts used for the screw, which is supplied on the one hand with a vapor located in the flow channel and on the other hand ⁇ connected via adekanalauslass with the Strömungskanalab ⁇ steam room.
  • the steam from the flow channel has a higher pressure than the steam in Strömungskanalabdampfhoffm so that a forced flow through the cooling channel in the stud has resulted, resulting in a kuh ⁇ ment of the screw as a whole.
  • the stud bolt comprises a nut, wherein the nut comprises cooling channel slots, which fluidly connects the cooling passage with the flow channel evaporation chamber.
  • the lower housing part has a bore which connects the cooling channel inlet with the Strö mungskanal.
  • This bore can be performed in an axial direction of the upper and lower housing upper part. It is important that at a suitable location, the bore has a flow ⁇ technical connection that provides the appropriate steam for the cooling steam.
  • FIG. 2 upper housing part FIG. 3 lower housing part
  • FIG. 4 shows a plan view of a nut according to the invention
  • Figure 5 is a schematic side view of the housing upper ⁇ part and the lower housing part.
  • FIG. 1 shows a schematic view of a partial view ei Nes housing upper part 1 and a lower housing part 2.
  • the Ge housing upper part 1 and the lower housing part 2 together a housing which is used in a turbomachine, not shown.
  • a flow channel is angeord ⁇ net (not shown).
  • blades and vanes are arranged, which convert the thermal energy Ener ⁇ a vapor into rotational energy of a rotor.
  • the upper housing part 1 and the lower housing part 2 are connected to one another via screws 3.
  • the screw 3 is designed as a stud, which means that the screw has by no 3 nen screw head, but a Ge ⁇ threaded at both ends.
  • a cooling channel 4 is formed, which is connected to a cooling channel inlet 5 and a cooling channel outlet 6 on the one hand.
  • a steam flowing in the cooling channel inlet 5 will flow through the cooling channel 4 in the axial direction through the stud bolt and thereby cool the stud.
  • the cooling steam enters the cooling channel outlet 6.
  • a slot 8 is arranged in the nut 7, through which the steam can flow into the cooling channel outlet 6.
  • Thedekanalauslass 6 is fluidly connected via a first fluid ⁇ technical connection 9 with the Strömungskanalabdampf syndromem (not shown in detail).
  • Thedekanalauslass 6 is fluidically connected via a between the stud and the housing, in particular hous ⁇ seoberteil 1 arranged screw cooling channel 14 with the flow channel evacuation chamber.
  • the channel inlet is connected to the flow channel via a second fluidic connection 10, expediently a fluidic connection after a blade stage is realized, in which the steam parameters are ideal for adeka ⁇ nalnikank.
  • FIG. 3 shows the housing lower part 2 with the second fluidic connection 10 and the cooling channel inlet 5.
  • FIG. 4 shows the nut 7 of the screw 3.
  • the nut 7 has at least one slot 8 in the region of the thread 11, through which the cooling steam can flow.
  • FIG. 5 shows a side view in the axial direction 12 of the turbomachine. The arrangement of the flow channel 13 as well as the cooling channel inlet 5 and the cooling channel outlet 6 and the first fluidic connection 9 and the second fluidic connection 10 can be seen in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne une turbomachine comprenant un carter constitué d'une partie de carter supérieure (1) et d'une partie de carter inférieure (2). La partie de carter supérieure (1) est reliée par un goujon fileté (3) à la partie de carter inférieure (2), et elle comporte un conduit de refroidissement (4), qui d'une part est relié au conduit d'écoulement (13) véhiculant de la vapeur à pression élevée et d'autre part comporte une sortie de conduit de refroidissement (6) reliée à la chambre d'évaporation.
EP13713767.5A 2012-03-27 2013-03-18 Turbomachine avec refroidissement de vis Not-in-force EP2802748B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13713767.5A EP2802748B1 (fr) 2012-03-27 2013-03-18 Turbomachine avec refroidissement de vis

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12161469.7A EP2644843A1 (fr) 2012-03-27 2012-03-27 Refroidissement à vis pour une turbomachine
PCT/EP2013/055506 WO2013143894A1 (fr) 2012-03-27 2013-03-18 Refroidisseur à hélice pour turbomachine
EP13713767.5A EP2802748B1 (fr) 2012-03-27 2013-03-18 Turbomachine avec refroidissement de vis

Publications (2)

Publication Number Publication Date
EP2802748A1 true EP2802748A1 (fr) 2014-11-19
EP2802748B1 EP2802748B1 (fr) 2016-02-17

Family

ID=48045422

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12161469.7A Withdrawn EP2644843A1 (fr) 2012-03-27 2012-03-27 Refroidissement à vis pour une turbomachine
EP13713767.5A Not-in-force EP2802748B1 (fr) 2012-03-27 2013-03-18 Turbomachine avec refroidissement de vis

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12161469.7A Withdrawn EP2644843A1 (fr) 2012-03-27 2012-03-27 Refroidissement à vis pour une turbomachine

Country Status (6)

Country Link
US (1) US20150050132A1 (fr)
EP (2) EP2644843A1 (fr)
JP (1) JP5883986B2 (fr)
CN (1) CN104395562B (fr)
IN (1) IN2014DN07089A (fr)
WO (1) WO2013143894A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105507963A (zh) * 2015-12-23 2016-04-20 上海电气电站设备有限公司 用于冷却在高温下工作的螺栓的冷却系统
RU173973U1 (ru) * 2016-05-30 2017-09-22 Общество с ограниченной ответственностью "Газпром трансгаз Казань" Устройство охлаждения высокотемпературных шпилек паровых и газовых турбин
RU2641782C2 (ru) * 2016-05-30 2018-01-22 Общество с ограниченной ответственностью "Газпром трансгаз Казань" Способ охлаждения высокотемпературных шпилек паровых турбин и устройство для его осуществления
RU2641787C2 (ru) * 2016-05-30 2018-01-22 Общество с ограниченной ответственностью "Газпром трансгаз Казань" Способ охлаждения высокотемпературных шпилек газовых турбин и устройство для его осуществления
EP3591176A1 (fr) * 2018-07-05 2020-01-08 Siemens Aktiengesellschaft Raccord à bride refroidi pour une turbomachine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH306453A (de) * 1952-12-12 1955-04-15 Bbc Brown Boveri & Cie Flanschverbindungsschraube für Gehäuse von Dampfturbinen, Gasturbinen und dergleichen.
JPS54142704U (fr) * 1978-03-29 1979-10-03
JPS54132008A (en) * 1978-04-05 1979-10-13 Hitachi Ltd Turbine casing
JPS57119109A (en) * 1981-01-14 1982-07-24 Hitachi Ltd Cleaning device for steam turbine wheel chamber horizontal flange clamping bolt
JPS59131906U (ja) * 1983-02-25 1984-09-04 株式会社東芝 タ−ビン車室締付ボルト冷却装置
US4820097A (en) * 1988-03-18 1989-04-11 United Technologies Corporation Fastener with airflow opening
JP4015284B2 (ja) * 1998-06-09 2007-11-28 三菱重工業株式会社 蒸気タービンケーシングのフランジ冷却構造
DE19850470A1 (de) * 1998-11-02 2000-02-03 Siemens Ag Turbinengehäuse einer Dampfturbine
US7037065B2 (en) * 2002-03-20 2006-05-02 Alstom Technology Ltd Flange bolt for turbines
JP2006037855A (ja) * 2004-07-28 2006-02-09 Mitsubishi Heavy Ind Ltd 車室ケーシング及びガスタービン
US8240988B2 (en) * 2008-03-26 2012-08-14 Siemens Energy, Inc. Fastener assembly with cyclone cooling
EP2187004A1 (fr) * 2008-11-13 2010-05-19 Siemens Aktiengesellschaft Boîtier intérieur pour une turbomachine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013143894A1 *

Also Published As

Publication number Publication date
EP2802748B1 (fr) 2016-02-17
WO2013143894A1 (fr) 2013-10-03
CN104395562A (zh) 2015-03-04
CN104395562B (zh) 2016-05-25
IN2014DN07089A (fr) 2015-04-24
JP2015511683A (ja) 2015-04-20
JP5883986B2 (ja) 2016-03-15
US20150050132A1 (en) 2015-02-19
EP2644843A1 (fr) 2013-10-02

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