JPS57129205A - Expansion-contraction adjusting device for steam turbine - Google Patents

Expansion-contraction adjusting device for steam turbine

Info

Publication number
JPS57129205A
JPS57129205A JP1293681A JP1293681A JPS57129205A JP S57129205 A JPS57129205 A JP S57129205A JP 1293681 A JP1293681 A JP 1293681A JP 1293681 A JP1293681 A JP 1293681A JP S57129205 A JPS57129205 A JP S57129205A
Authority
JP
Japan
Prior art keywords
expansion
turbine shaft
contraction
casing
piston rod
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
JP1293681A
Other languages
Japanese (ja)
Inventor
Hiroshi Yamaguchi
Katsukuni Kuno
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 JP1293681A priority Critical patent/JPS57129205A/en
Publication of JPS57129205A publication Critical patent/JPS57129205A/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
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Abstract

PURPOSE:To prevent deterioration of efficiency of a steam turbine by keeping a constant clearance between a turbine shaft and a casing, by shifting the casing in an accordance wih expansion or contraction of the turbine shaft. CONSTITUTION:When a turbine shaft 11 expands or contracts in the axial direction, a measuring device 13 measures amount of the expansion or contraction. On the basis of a signal from the measuring device 13, a piston rod 18 of a cylinder 15 is operated through a signal converter 14 by a distance equivalent to the expansion or contraction of the turbine shaft 11. By the operation of the piston rod 18, a casing 16 which is connected to the piston rod 18 as a continuus body, shifts by a distance proportionate to the expansion or contraction of the turbine shaft 11. And therefore, clearances among a movable vane which is installed in the turbine shaft 11, a diaphragm and a static wing which are provided in the casing 16 are always kept at an almost constant value.
JP1293681A 1981-02-02 1981-02-02 Expansion-contraction adjusting device for steam turbine Pending JPS57129205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1293681A JPS57129205A (en) 1981-02-02 1981-02-02 Expansion-contraction adjusting device for steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1293681A JPS57129205A (en) 1981-02-02 1981-02-02 Expansion-contraction adjusting device for steam turbine

Publications (1)

Publication Number Publication Date
JPS57129205A true JPS57129205A (en) 1982-08-11

Family

ID=11819163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1293681A Pending JPS57129205A (en) 1981-02-02 1981-02-02 Expansion-contraction adjusting device for steam turbine

Country Status (1)

Country Link
JP (1) JPS57129205A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1105658A (en) * 1964-07-22 1968-03-13 Ass Elect Ind Improvements in or relating to turbines
JPS52151438A (en) * 1976-05-13 1977-12-15 Gen Electric Compound cycle steam turbine and gas turbine power plant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1105658A (en) * 1964-07-22 1968-03-13 Ass Elect Ind Improvements in or relating to turbines
JPS52151438A (en) * 1976-05-13 1977-12-15 Gen Electric Compound cycle steam turbine and gas turbine power plant

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