CA2481812A1 - Shaft structure and bearing structure for tail end of rotor of gas turbine - Google Patents

Shaft structure and bearing structure for tail end of rotor of gas turbine Download PDF

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Publication number
CA2481812A1
CA2481812A1 CA002481812A CA2481812A CA2481812A1 CA 2481812 A1 CA2481812 A1 CA 2481812A1 CA 002481812 A CA002481812 A CA 002481812A CA 2481812 A CA2481812 A CA 2481812A CA 2481812 A1 CA2481812 A1 CA 2481812A1
Authority
CA
Canada
Prior art keywords
tail end
rotor
gas turbine
rotor tail
center hole
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
CA002481812A
Other languages
French (fr)
Other versions
CA2481812C (en
Inventor
Takeaki Oya
Kazuharu Hirokawa
Tadateru Tanioka
Tanehiro Shinohara
Katsunori Tanaka
Kazuo Uematsu
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.)
Mitsubishi Power Ltd
Original Assignee
Individual
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
Priority claimed from JP2000292763A external-priority patent/JP4690531B2/en
Application filed by Individual filed Critical Individual
Priority claimed from CA002356479A external-priority patent/CA2356479C/en
Publication of CA2481812A1 publication Critical patent/CA2481812A1/en
Application granted granted Critical
Publication of CA2481812C publication Critical patent/CA2481812C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A shaft structure of a rotor tail end of a gas turbine in which a steam passage for supplying and recovering a steam for cooling rotor blades of the gas turbine extends along a center axis of the rotor assembly of the gas turbine is provided, wherein a center hole of the rotor tail end coaxial to the center axis of the steam passage is formed in the rotor tail end. Provision is also made of a thermal sleeve between the steam passage and the inner surface of the center hole of the rotor tail end, so that a thermal insulation gas layer is formed between the inner surface of the center hole of the rotor tail end and the thermal sleeve. The thermal insulation gas layer is isolated gas-tightly and liquid- tightly from the outside.
CA002481812A 2000-09-26 2001-08-31 Shaft structure and bearing structure for tail end of rotor of gas turbine Expired - Fee Related CA2481812C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000-292763 2000-09-26
JP2000292763A JP4690531B2 (en) 1999-09-27 2000-09-26 Shaft structure of gas turbine rotor tail end
CA002356479A CA2356479C (en) 2000-09-26 2001-08-31 Shaft structure and bearing structure for tail end of rotor of gas turbine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002356479A Division CA2356479C (en) 2000-09-26 2001-08-31 Shaft structure and bearing structure for tail end of rotor of gas turbine

Publications (2)

Publication Number Publication Date
CA2481812A1 true CA2481812A1 (en) 2002-03-26
CA2481812C CA2481812C (en) 2005-10-11

Family

ID=33565683

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002481812A Expired - Fee Related CA2481812C (en) 2000-09-26 2001-08-31 Shaft structure and bearing structure for tail end of rotor of gas turbine
CA002481810A Expired - Fee Related CA2481810C (en) 2000-09-26 2001-08-31 Shaft structure and bearing structure for tail end of rotor of gas turbine

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002481810A Expired - Fee Related CA2481810C (en) 2000-09-26 2001-08-31 Shaft structure and bearing structure for tail end of rotor of gas turbine

Country Status (1)

Country Link
CA (2) CA2481812C (en)

Also Published As

Publication number Publication date
CA2481810C (en) 2006-01-31
CA2481810A1 (en) 2002-03-26
CA2481812C (en) 2005-10-11

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Effective date: 20170831