GB698898A - Improvements in elastic fluid turbines - Google Patents

Improvements in elastic fluid turbines

Info

Publication number
GB698898A
GB698898A GB2168/51A GB216851A GB698898A GB 698898 A GB698898 A GB 698898A GB 2168/51 A GB2168/51 A GB 2168/51A GB 216851 A GB216851 A GB 216851A GB 698898 A GB698898 A GB 698898A
Authority
GB
United Kingdom
Prior art keywords
tube
turbine
compensating
fsp
gap
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.)
Expired
Application number
GB2168/51A
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.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB698898A publication Critical patent/GB698898A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/003—Arrangements for testing or measuring
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/08—Restoring position
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/12—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Control Of Turbines (AREA)

Abstract

698,898. Turbines. AKT.-GES. BROWN, BOVERI & CIE. Jan. 29, 1951 [Feb. 4, 1950], No. 2168/51. Class 110(iii) To compensate for the deformation caused by unequal heat distribution in the rotor and casing of an axial flow turbine, the turbine is provided with a device supplied with a flow of vaporous medium which is the same as the working medium of the turbine in such a manner that the variations in the clearances caused by the deformation of the rotor and casing serve to compensate automatically or cause to operate means for automatically compensating the deformation. In Fig. 1, a compensating tube 1 is mounted in the turbine casing 2 so that its end is within a distance of 0.5 to 1.0 mms. from the surface of the rotor 3. Steam supplied from a pipe 5 passes through an orifice 6, pipe I and a gap fsp into the turbine casing. The area fd of the orifice 6 is preferably the same as that of the gap fsp so that the pressure px in the tube 1 is then dependent upon the area of the gap fsp. As shown in Fig. 3, the pressure variation in the tube 1 can be used to operate a valve 12 through a regulator 11 or the compensating device itself can be used for this purpose. In the latter case, cooling fluid passes through the tube 1 and the amount will be controlled by variations of the size of the gap fsp. Modifications in which the compensating tube is used to operate an electrical heating device and in -which compensating tubes are mounted on diametrically opposite sides. of the turbine casing are described.
GB2168/51A 1950-02-04 1951-01-29 Improvements in elastic fluid turbines Expired GB698898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH698898X 1950-02-04

Publications (1)

Publication Number Publication Date
GB698898A true GB698898A (en) 1953-10-28

Family

ID=4529854

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2168/51A Expired GB698898A (en) 1950-02-04 1951-01-29 Improvements in elastic fluid turbines

Country Status (7)

Country Link
US (1) US2684568A (en)
BE (1) BE500887A (en)
CH (1) CH280276A (en)
DE (1) DE821634C (en)
FR (1) FR1031829A (en)
GB (1) GB698898A (en)
NL (1) NL80814C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2994472A (en) * 1958-12-29 1961-08-01 Gen Electric Tip clearance control system for turbomachines
US3039737A (en) * 1959-04-13 1962-06-19 Int Harvester Co Device for controlling clearance between rotor and shroud of a turbine
GB2153911A (en) * 1984-02-10 1985-08-29 Hobourn Eaton Ltd Method of checking radial clearances in rotary machines

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160652B (en) * 1960-06-01 1964-01-02 Maschf Augsburg Nuernberg Ag Device for measuring the mutual axial displacement of two turbine parts
US3176502A (en) * 1963-07-26 1965-04-06 Pratt & Whitney Inc Pneumatic gage
US3220244A (en) * 1963-09-06 1965-11-30 Cooper Bessemer Corp Thrust bearing wear sensing device
US3754433A (en) * 1971-09-17 1973-08-28 Bendix Corp Fluidic proximity sensor
CS193219B1 (en) * 1977-04-16 1979-10-31 Jan Jicha Connection for continuous measuring of the clearance,gaps and shifts
GB2050524B (en) * 1979-06-06 1982-10-20 Rolls Royce Turbine stator shroud assembly
GB2090333B (en) * 1980-12-18 1984-04-26 Rolls Royce Gas turbine engine shroud/blade tip control
GB2117450B (en) * 1981-03-20 1984-06-27 Rolls Royce Casing support for a gas turbine engine
US4523451A (en) * 1983-11-17 1985-06-18 Borg-Warner Corporation Hydraulic proximity probe
US4632635A (en) * 1984-12-24 1986-12-30 Allied Corporation Turbine blade clearance controller
US4733529A (en) * 1986-09-26 1988-03-29 Cef Industries, Inc. Performance envelope extension device for a gas turbine engine
US4845991A (en) * 1986-12-22 1989-07-11 Combustion Engineering, Inc. Hydraulic clearance measurement system
US6657217B2 (en) 2001-04-10 2003-12-02 York International Corporation Probe for sensing movement in a compressor system
US7010959B2 (en) * 2003-03-28 2006-03-14 Schleifring Und Apparatebau Gmbh Device and method for measuring mechanical path lengths by means of pneumatic pressure, in particular for sliding carbon contacts
EP1505262A1 (en) * 2003-08-08 2005-02-09 Siemens Aktiengesellschaft Apparatus and method for measuring the width of a radial gap
US7207768B2 (en) * 2005-01-15 2007-04-24 Siemens Power Generation, Inc. Warning system for turbine component contact
US8776530B2 (en) * 2011-11-23 2014-07-15 General Electric Company Gas turbine engine lockout reduction
US10947993B2 (en) 2017-11-27 2021-03-16 General Electric Company Thermal gradient attenuation structure to mitigate rotor bow in turbine engine
US11879411B2 (en) 2022-04-07 2024-01-23 General Electric Company System and method for mitigating bowed rotor in a gas turbine engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB202691A (en) * 1922-04-27 1923-08-27 Henry Lewis Guy Improvements in devices for indicating or measuring distances or movements of machine parts or other solid bodies
US1927750A (en) * 1929-05-21 1933-09-19 Materiel Automobile S A C M A Measuring instrument controls for machines
BE373292A (en) * 1930-09-09
US2357569A (en) * 1942-06-17 1944-09-05 Gen Motors Corp Gauge
CH241935A (en) * 1942-12-04 1946-04-15 Sa Etavex Pneumatic measuring device.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2994472A (en) * 1958-12-29 1961-08-01 Gen Electric Tip clearance control system for turbomachines
US3039737A (en) * 1959-04-13 1962-06-19 Int Harvester Co Device for controlling clearance between rotor and shroud of a turbine
GB2153911A (en) * 1984-02-10 1985-08-29 Hobourn Eaton Ltd Method of checking radial clearances in rotary machines

Also Published As

Publication number Publication date
BE500887A (en)
CH280276A (en) 1952-01-15
FR1031829A (en) 1953-06-26
US2684568A (en) 1954-07-27
DE821634C (en) 1951-11-19
NL80814C (en)

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