JPS57188702A - Steam turbine rotor cooling method - Google Patents

Steam turbine rotor cooling method

Info

Publication number
JPS57188702A
JPS57188702A JP7227681A JP7227681A JPS57188702A JP S57188702 A JPS57188702 A JP S57188702A JP 7227681 A JP7227681 A JP 7227681A JP 7227681 A JP7227681 A JP 7227681A JP S57188702 A JPS57188702 A JP S57188702A
Authority
JP
Japan
Prior art keywords
steam
main stream
rotor
stream side
fin
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.)
Pending
Application number
JP7227681A
Other languages
Japanese (ja)
Inventor
Michinobu Fujii
Takeshi Narutomi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7227681A priority Critical patent/JPS57188702A/en
Publication of JPS57188702A publication Critical patent/JPS57188702A/en
Pending legal-status Critical Current

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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means

Landscapes

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

Abstract

PURPOSE:To cool the rotor effectively and prevent deformation of a rotor due to secure change beforehand, by providing in the lower course from 2nd step for reheating a route fin which introduces steam from the main stream side into a space between a blade wheel and a nozzle diaphragm. CONSTITUTION:Cooling steam 10 which passing through a balance hole 8a of the initial step for reheating further passes through the main stream side and a labyrinth packing 20b. Cooling steam cools a blade wheel surface 40, however, its temperature rises higher than that of steam of the main stream due to a rolling friction. Therefore, steam is introduced from the main stream side through a gap of a route fin 21. Since the cooling steam may thus be prevented from rising in temperature due to the rolling friction, the rotor may be cooled effectively and its deformation due to secular change can be prevented.
JP7227681A 1981-05-15 1981-05-15 Steam turbine rotor cooling method Pending JPS57188702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7227681A JPS57188702A (en) 1981-05-15 1981-05-15 Steam turbine rotor cooling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7227681A JPS57188702A (en) 1981-05-15 1981-05-15 Steam turbine rotor cooling method

Publications (1)

Publication Number Publication Date
JPS57188702A true JPS57188702A (en) 1982-11-19

Family

ID=13484594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7227681A Pending JPS57188702A (en) 1981-05-15 1981-05-15 Steam turbine rotor cooling method

Country Status (1)

Country Link
JP (1) JPS57188702A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09303105A (en) * 1996-05-14 1997-11-25 Mitsubishi Heavy Ind Ltd Speed governing stage for steam turbine
WO1997049900A1 (en) * 1996-06-21 1997-12-31 Siemens Aktiengesellschaft Turbomachine and process for cooling a turbomachine
JP2010185450A (en) * 2009-01-16 2010-08-26 Toshiba Corp Steam turbine
EP3009597A1 (en) * 2014-10-15 2016-04-20 Siemens Aktiengesellschaft Controlled cooling of turbine shafts

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09303105A (en) * 1996-05-14 1997-11-25 Mitsubishi Heavy Ind Ltd Speed governing stage for steam turbine
WO1997049900A1 (en) * 1996-06-21 1997-12-31 Siemens Aktiengesellschaft Turbomachine and process for cooling a turbomachine
JP2010185450A (en) * 2009-01-16 2010-08-26 Toshiba Corp Steam turbine
US8979480B2 (en) 2009-01-16 2015-03-17 Kabushiki Kaisha Toshiba Steam turbine
EP3009597A1 (en) * 2014-10-15 2016-04-20 Siemens Aktiengesellschaft Controlled cooling of turbine shafts
WO2016058855A1 (en) * 2014-10-15 2016-04-21 Siemens Aktiengesellschaft Controlled cooling of turbine shafts
KR20170067886A (en) * 2014-10-15 2017-06-16 지멘스 악티엔게젤샤프트 Controlled cooling of turbine shafts
CN107002494A (en) * 2014-10-15 2017-08-01 西门子公司 The controllable cooling of turbine wheel shaft
CN107002494B (en) * 2014-10-15 2019-08-16 西门子公司 The controllable cooling of turbine wheel shaft
US10392941B2 (en) 2014-10-15 2019-08-27 Siemens Aktiengesellschaft Controlled cooling of turbine shafts

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