JPS57191401A - Device for preventing deformation of diaphragm of steam turbine - Google Patents

Device for preventing deformation of diaphragm of steam turbine

Info

Publication number
JPS57191401A
JPS57191401A JP56074263A JP7426381A JPS57191401A JP S57191401 A JPS57191401 A JP S57191401A JP 56074263 A JP56074263 A JP 56074263A JP 7426381 A JP7426381 A JP 7426381A JP S57191401 A JPS57191401 A JP S57191401A
Authority
JP
Japan
Prior art keywords
diaphragm
cavity
steam
cooling
vicinity
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
JP56074263A
Other languages
Japanese (ja)
Other versions
JPS6332964B2 (en
Inventor
Tsutomu Takahashi
Minoru Matsumoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56074263A priority Critical patent/JPS57191401A/en
Priority to DE19823218805 priority patent/DE3218805C2/en
Publication of JPS57191401A publication Critical patent/JPS57191401A/en
Publication of JPS6332964B2 publication Critical patent/JPS6332964B2/ja
Granted 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/12—Cooling

Landscapes

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

Abstract

PURPOSE: To uniformly perform cooling of the entire part of the diaphragm and prevent deformation of the diaphragm by providing annular cavities, in the vicinity of a working steam passage part between the outer race and the inner race of the diaphragm of a steam turbine to introduce thereinto a diaphragm cooling steam.
CONSTITUTION: In the case of applying the subject device to the middle pressure initial stage of the steam turbine, first and second cavities 17 and 18 formed into an annular shape making the center of the diaphragm 4 the center of the radius, are provided in the outer wheel 5 and the inner wheel 6. The first cavity 17 is provided at a position in the vicinity of the ouside of a stationary vane 7 and the second cavity 18 at a position in the vicinity of the inner side of the stationary vane 7. Cooling steam 104 is introduced into the first cavity 17 from an inlet pipe 19 branched at the outer part from the lead pipe 13 of a rotor cooling steam 101. The second cavity 18 communicates with the first cavity 17 by way of a passage 20 formed in the stationary vane 7 to introduce the cooling steam 104 supplied through the passage 20 to the cavity 17 and carry out the cooling of the diaphragm 4.
COPYRIGHT: (C)1982,JPO&Japio
JP56074263A 1981-05-19 1981-05-19 Device for preventing deformation of diaphragm of steam turbine Granted JPS57191401A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56074263A JPS57191401A (en) 1981-05-19 1981-05-19 Device for preventing deformation of diaphragm of steam turbine
DE19823218805 DE3218805C2 (en) 1981-05-19 1982-05-18 Steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074263A JPS57191401A (en) 1981-05-19 1981-05-19 Device for preventing deformation of diaphragm of steam turbine

Publications (2)

Publication Number Publication Date
JPS57191401A true JPS57191401A (en) 1982-11-25
JPS6332964B2 JPS6332964B2 (en) 1988-07-04

Family

ID=13542062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074263A Granted JPS57191401A (en) 1981-05-19 1981-05-19 Device for preventing deformation of diaphragm of steam turbine

Country Status (2)

Country Link
JP (1) JPS57191401A (en)
DE (1) DE3218805C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149247A (en) * 1989-04-26 1992-09-22 Gec Alsthom Sa Single hp-mp internal stator for a steam turbine with controlled steam conditioning
CN102128054A (en) * 2010-01-12 2011-07-20 株式会社东芝 Steam turbine
CN109989791A (en) * 2019-04-03 2019-07-09 大唐东营发电有限公司 A kind of turbine rotor cooling system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969599C (en) * 1943-05-27 1958-06-19 Holzwarth Gasturbinen G M B H Cooled nozzle body for centrifugal machines, especially exhaust gas turbines
JPS5374608A (en) * 1976-12-15 1978-07-03 Hitachi Ltd Cooling device for steam turbine
JPS548244A (en) * 1977-06-22 1979-01-22 Hitachi Ltd Wet steam turbine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149247A (en) * 1989-04-26 1992-09-22 Gec Alsthom Sa Single hp-mp internal stator for a steam turbine with controlled steam conditioning
CN102128054A (en) * 2010-01-12 2011-07-20 株式会社东芝 Steam turbine
CN109989791A (en) * 2019-04-03 2019-07-09 大唐东营发电有限公司 A kind of turbine rotor cooling system
CN109989791B (en) * 2019-04-03 2021-11-26 大唐东营发电有限公司 Steam turbine rotor cooling system

Also Published As

Publication number Publication date
JPS6332964B2 (en) 1988-07-04
DE3218805C2 (en) 1983-12-15
DE3218805A1 (en) 1982-12-23

Similar Documents

Publication Publication Date Title
JPS5566605A (en) Exhaust casing for steam turbine
JPS57191401A (en) Device for preventing deformation of diaphragm of steam turbine
JPS545109A (en) Low pressure casing of steam turbine
GB1411269A (en) Construction of axial-flow rotary machine housings
JPH02146205A (en) Device for reducing deflection and stress of turbine diaphragm
JPS56162209A (en) Structure of seal fin
JPS5437059A (en) Method of producting internally wrought pipe
JPS56162298A (en) Diaphragm for centrifugal compressor
JPS54153908A (en) Nozzle diaphragm
JPS56146088A (en) Rotary compressor
JPS5793607A (en) Guide for fluid inlet port
JPS5493703A (en) Bucket seal device
JPS5257410A (en) Leakage sealing mechanism for axial fluid machine
JPS55159366A (en) Shaft seal device for axial flow machine
JPS52143308A (en) Expansion pipe equipped with centering function
JPS57129206A (en) Steam turbine
JPS5516792A (en) Core for molding faucet of centrifugal cast-iron pipe
SU1182185A1 (en) Axial-radial diffuser for bauman stage turbine
JPS5337210A (en) Cooling structure for steam turbine rotor
JPS5337252A (en) Sealing arrangement between runner and fixed part of hydraulic machine
JPS56129703A (en) Double flow type nozzle box for steam turbine
SU1638317A1 (en) Double-flow turbine cylinder
JPS5435504A (en) Method of connecting turbine rotor and turbine moving vane
JPS575564A (en) Main shaft seal water pressure reducing apparatus of hydraulic machinery
JPS5569795A (en) Sealing system for pump