JPS57171003A - Steam turbine - Google Patents

Steam turbine

Info

Publication number
JPS57171003A
JPS57171003A JP5682381A JP5682381A JPS57171003A JP S57171003 A JPS57171003 A JP S57171003A JP 5682381 A JP5682381 A JP 5682381A JP 5682381 A JP5682381 A JP 5682381A JP S57171003 A JPS57171003 A JP S57171003A
Authority
JP
Japan
Prior art keywords
steam
casing
side stage
stage group
primary
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
JP5682381A
Other languages
Japanese (ja)
Other versions
JPS6133962B2 (en
Inventor
Masahiko Takahashi
Izumi Matsuo
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 JP5682381A priority Critical patent/JPS57171003A/en
Publication of JPS57171003A publication Critical patent/JPS57171003A/en
Publication of JPS6133962B2 publication Critical patent/JPS6133962B2/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
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/26—Double casings; Measures against temperature strain in casings

Landscapes

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

Abstract

PURPOSE:To simplify the structure of a casing and as well as reduce the fluid loss by a structure wherein a part of the periphery of the casing of an upperstream side stage group is formed in double shell structure in a mixed pressure steam turbine. CONSTITUTION:Lowerstream side stage groups 24 and 25 are provided at both the sides of the upperstream side stage group 23 in the manner of double-flow. A part of the periphery of the casing 20 at the part falling on the upperstream side stage group is formed in double shell structure so as to shape a steam passage 30 with closed structure between walls. Steam pipings 34 and 35 for feeding primary and secondary steams are respectively connected to a casing 22 formed in single shell structure. In such a manner as mentioned above, the simplification of the structure of the casing can be resulted. Furthermore, because the primary steam is flowed through the steam passage 30 in the lower side stage group 24 and mixed with the secondary steam, the flow rate of the primary steam passing through the steam passage 30 can be reduced and the reduction of fluid loss can be resulted.
JP5682381A 1981-04-15 1981-04-15 Steam turbine Granted JPS57171003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5682381A JPS57171003A (en) 1981-04-15 1981-04-15 Steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5682381A JPS57171003A (en) 1981-04-15 1981-04-15 Steam turbine

Publications (2)

Publication Number Publication Date
JPS57171003A true JPS57171003A (en) 1982-10-21
JPS6133962B2 JPS6133962B2 (en) 1986-08-05

Family

ID=13038088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5682381A Granted JPS57171003A (en) 1981-04-15 1981-04-15 Steam turbine

Country Status (1)

Country Link
JP (1) JPS57171003A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0626400A (en) * 1984-11-14 1994-02-01 Caterpillar Inc Dual pressure turbine
WO2012077371A1 (en) * 2010-12-06 2012-06-14 三菱重工業株式会社 Steam turbine, power plant, and operation method for steam turbine
JP2017002838A (en) * 2015-06-11 2017-01-05 三菱日立パワーシステムズ株式会社 Turbine inlet structure and steam turbine using the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0626400A (en) * 1984-11-14 1994-02-01 Caterpillar Inc Dual pressure turbine
WO2012077371A1 (en) * 2010-12-06 2012-06-14 三菱重工業株式会社 Steam turbine, power plant, and operation method for steam turbine
JP2012122357A (en) * 2010-12-06 2012-06-28 Mitsubishi Heavy Ind Ltd Steam turbine, power plant, and steam turbine operating method
CN102985642A (en) * 2010-12-06 2013-03-20 三菱重工业株式会社 Steam turbine, power plant, and operation method for steam turbine
US8857183B2 (en) 2010-12-06 2014-10-14 Mitsubishi Heavy Industries, Ltd. Steam turbine, power plant and method for operating steam turbine
JP2017002838A (en) * 2015-06-11 2017-01-05 三菱日立パワーシステムズ株式会社 Turbine inlet structure and steam turbine using the same

Also Published As

Publication number Publication date
JPS6133962B2 (en) 1986-08-05

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