JPS5481409A - Turbine casing - Google Patents

Turbine casing

Info

Publication number
JPS5481409A
JPS5481409A JP14814377A JP14814377A JPS5481409A JP S5481409 A JPS5481409 A JP S5481409A JP 14814377 A JP14814377 A JP 14814377A JP 14814377 A JP14814377 A JP 14814377A JP S5481409 A JPS5481409 A JP S5481409A
Authority
JP
Japan
Prior art keywords
lower casing
gas extraction
halves
casing halves
casing
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
JP14814377A
Other languages
Japanese (ja)
Inventor
Hajime Shibaoka
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 JP14814377A priority Critical patent/JPS5481409A/en
Publication of JPS5481409A publication Critical patent/JPS5481409A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To elminate thermal deformation of the casing and prevent the phenomenon of rubbing between the casing and rotor by forming the gas extraction chambers of upper and lower casing halves such that they have difference areas and thus equalizing the rigidity of the upper and lower casing halves.
CONSTITUTION: A gas extraction chamber 3 of an upper casing half 6 is formed such that its area is smaller than that of a lower casing half 7. The area ratio of the gas extraction chamber 3 between the upper and lower casing halves 6 and 7 is determined such as to minimize the displacement of the rotor center by obtaining the thermal deformation of the flat plate with a finite element method or the like. In a front vertical plate 8 the extent l of elongation of the plate toward the outer side is calculated as l = α.T.L. The coefficient α of linear expansion and temperature T are identical for both the upper and lower casing halves 6 and 7 and vary with the representative length L.
COPYRIGHT: (C)1979,JPO&Japio
JP14814377A 1977-12-12 1977-12-12 Turbine casing Pending JPS5481409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14814377A JPS5481409A (en) 1977-12-12 1977-12-12 Turbine casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14814377A JPS5481409A (en) 1977-12-12 1977-12-12 Turbine casing

Publications (1)

Publication Number Publication Date
JPS5481409A true JPS5481409A (en) 1979-06-28

Family

ID=15446220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14814377A Pending JPS5481409A (en) 1977-12-12 1977-12-12 Turbine casing

Country Status (1)

Country Link
JP (1) JPS5481409A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189630A1 (en) * 2008-11-19 2010-05-26 Siemens Aktiengesellschaft Gas turbine, guide vane support for such a gas turbine and gas or steam turbine plant with such a gas turbine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189630A1 (en) * 2008-11-19 2010-05-26 Siemens Aktiengesellschaft Gas turbine, guide vane support for such a gas turbine and gas or steam turbine plant with such a gas turbine
WO2010057698A1 (en) * 2008-11-19 2010-05-27 Siemens Aktiengesellschaft Gas turbine
CN102216570A (en) * 2008-11-19 2011-10-12 西门子公司 Gas turbine
US9074490B2 (en) 2008-11-19 2015-07-07 Siemens Aktiengesellschaft Gas turbine

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