GB972394A - Gas turbine engine - Google Patents

Gas turbine engine

Info

Publication number
GB972394A
GB972394A GB899/62A GB89962A GB972394A GB 972394 A GB972394 A GB 972394A GB 899/62 A GB899/62 A GB 899/62A GB 89962 A GB89962 A GB 89962A GB 972394 A GB972394 A GB 972394A
Authority
GB
United Kingdom
Prior art keywords
cell
radiation
blades
lens
pyrometer
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
GB899/62A
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB899/62A priority Critical patent/GB972394A/en
Publication of GB972394A publication Critical patent/GB972394A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/02—Arrangement of sensing elements
    • F01D17/08—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure
    • F01D17/085—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure to temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0088—Radiation pyrometry, e.g. infrared or optical thermometry in turbines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/04—Casings
    • G01J5/041—Mountings in enclosures or in a particular environment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
    • G01J5/051—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path using a gas purge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
    • G01J5/061—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity by controlling the temperature of the apparatus or parts thereof, e.g. using cooling means or thermostats
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
    • G01J5/064—Ambient temperature sensor; Housing temperature sensor; Constructional details thereof
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0818—Waveguides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Radiation Pyrometers (AREA)

Abstract

972,394. Turbines. ROLLS-ROYCE Ltd. Jan. 7, 1963 [Jan. 10, 1962], No. 899/62. Heading FIT. [Also in Division Gl] A gas turbine engine has means for directing radiation from a rotatable part of the turbine on to a radiation pyrometer and indicator and/ or control means, controlled by the pyrometer for indicating the temperature of the rotatable part and/or for controlling the operation of the engine. In Fig. 1 an inlet nozzle guide vane 13 of the turbine is formed with an opening 15 and a lens tube 16 is aligned with the opening so that the axis 17 of the tube intersects the most highly stressed and heated parts of the rotor blades 14. Mounted within a portion 18 of the lens tube is a photo-voltaic radiation receiving cell 20, see Fig. 2, also a plano-convex lens 23 and an axially adjustable apertured diaphragm 21. Radiation from the blades 14 is focused by the lens 23 and passes through the aperture 22 so as to fall on the cell 20. A temperature sensitive device 24 is disposed adjacent the cell 20 and is adapted to compensate for changes in the ambient temperature surrounding the cell 20. The cell 20 may have an output of 3 millivolts at 950‹C. and 5 millivolts at 1000‹C. but may have no significant output at temperatures below 750‹C. Two thermocouples disposed immediately downstream of the combustion equipment may be provided therefore in addition to the pyrometer. The portion 18 of the lens tube is mounted in a thermally insulated housing 25 and cooling air may be supplied to the annular space between the portion 18 and the housing 25 through inlet 27. A supply of pressure air is also caused to flow through inlet 28 and through the lens tube 16 to prevent deposition of soot therein. The cell 20 may be disposed at a greater distance from the blades, radiation from the blades being directed on to the cell by means of a prism. In a second embodiment a second photo-voltaic cell is disposed behind the first cell so that it is shielded from radiation from the blades 14 and receives radiation only from the parts immediately around it. The second cell will compensate for any effect on the output of the first cell arising from the ambient temperature in the vicinity of the first cell.
GB899/62A 1962-01-10 1962-01-10 Gas turbine engine Expired GB972394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB899/62A GB972394A (en) 1962-01-10 1962-01-10 Gas turbine engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB899/62A GB972394A (en) 1962-01-10 1962-01-10 Gas turbine engine

Publications (1)

Publication Number Publication Date
GB972394A true GB972394A (en) 1964-10-14

Family

ID=9712437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB899/62A Expired GB972394A (en) 1962-01-10 1962-01-10 Gas turbine engine

Country Status (1)

Country Link
GB (1) GB972394A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039706A1 (en) * 1979-11-20 1981-11-18 Avco Corp Air purging unit for an optical pyrometer of a gas turbine engine.
GB2133877A (en) * 1982-12-24 1984-08-01 Rolls Royce Generation of a signal dependent upon temperature of gas turbine rotor blades
WO2012175302A1 (en) * 2011-06-21 2012-12-27 Siemens Aktiengesellschaft Gas turbine with pyrometer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039706A1 (en) * 1979-11-20 1981-11-18 Avco Corp Air purging unit for an optical pyrometer of a gas turbine engine.
EP0039706A4 (en) * 1979-11-20 1982-03-29 Avco Corp Air purging unit for an optical pyrometer of a gas turbine engine.
GB2133877A (en) * 1982-12-24 1984-08-01 Rolls Royce Generation of a signal dependent upon temperature of gas turbine rotor blades
WO2012175302A1 (en) * 2011-06-21 2012-12-27 Siemens Aktiengesellschaft Gas turbine with pyrometer

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