GB989011A - Apparatus for controlling the operation of a machine - Google Patents

Apparatus for controlling the operation of a machine

Info

Publication number
GB989011A
GB989011A GB605062A GB605062A GB989011A GB 989011 A GB989011 A GB 989011A GB 605062 A GB605062 A GB 605062A GB 605062 A GB605062 A GB 605062A GB 989011 A GB989011 A GB 989011A
Authority
GB
United Kingdom
Prior art keywords
stress
temperature
maximum
difference
maximum permissible
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
GB605062A
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 Switzerland
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Switzerland
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 Switzerland, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Switzerland
Publication of GB989011A publication Critical patent/GB989011A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • 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
    • 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
    • F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
    • F01D19/02—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith dependent on temperature of component parts, e.g. of turbine-casing
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Engines (AREA)
  • Control Of Turbines (AREA)

Abstract

989,011. Electric correspondence control systems. BROWN, BOVERI &CO. Ltd. Feb.16, 1962 [Feb. 16, 1961], No. 6050/62. Heading G1N. The temperature at different parts of e,g. a steam turbine are determined electrically and the maximum difference recorded as indicative of the maximum stress produced due to temperature difference, whereby the conditions of loading &c. may be manually or automatically controlled to ensure that the maximum permissible stress is not exceeded. The temperatures are measured by thermocouples 3, 4, 5 (Fig. 2) located in a probe mounted on the stator of the machine, with thermocouple 3 measuring the maximum temperature, 4 the minimum temperature and 5 the average temperature. The difference between the outputs of thermocouples 3, 4, indicative of the actual thermal stress, is amplified at 8, modified in accordance with additional stress dependent on the average temperature or the temperatures difference, and indicated by line 10 on a recording instrument 7. The maximum permissible stress is obtained by amplifying at 9 the signal from thermocouple 5, producing limit lines 11a, 11b on meter 7 for the measured stress line 10. The machine operating conditions can be automatically controlled by a regulator 13 fed with the signals U 1 representing the actual stress, U 2 the maximum permissible stress, #U the permitted tolerance, dU 1 the rate of change of stress &c. dt
GB605062A 1961-02-16 1962-02-16 Apparatus for controlling the operation of a machine Expired GB989011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0061298 1961-02-16

Publications (1)

Publication Number Publication Date
GB989011A true GB989011A (en) 1965-04-14

Family

ID=6973151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB605062A Expired GB989011A (en) 1961-02-16 1962-02-16 Apparatus for controlling the operation of a machine

Country Status (4)

Country Link
AT (1) AT248148B (en)
CH (1) CH390947A (en)
DE (1) DE1698476B1 (en)
GB (1) GB989011A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510656A1 (en) * 2003-09-01 2005-03-02 Siemens Aktiengesellschaft Method and system for identifying an operational mode of a gas turbine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4320625A (en) * 1980-04-30 1982-03-23 General Electric Company Method and apparatus for thermal stress controlled loading of steam turbines
DE3314181A1 (en) * 1983-04-19 1984-10-25 Kraftwerk Union AG, 4330 Mülheim METHOD FOR MONITORING THE FATIGUE OF COMPONENTS, e.g. IN NUCLEAR POWER PLANTS
CN1084824C (en) * 1996-11-08 2002-05-15 西门子公司 Turbine control device and method for regulating load alternation process in turbine
EP1674667A1 (en) * 2004-12-21 2006-06-28 Siemens Aktiengesellschaft Method and apparatus for warming up a steam turbine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025898B (en) * 1956-03-03 1958-03-13 Bbc Brown Boveri & Cie Device for monitoring the housing wall temperature when starting up steam or gas turbines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510656A1 (en) * 2003-09-01 2005-03-02 Siemens Aktiengesellschaft Method and system for identifying an operational mode of a gas turbine
WO2005028814A1 (en) * 2003-09-01 2005-03-31 Siemens Aktiengesellschaft Method and device for identifying the operating condition of a turbine
US7899647B2 (en) 2003-09-01 2011-03-01 Siemens Aktiengesellschaft Method and device for identifying the operating condition of a turbine

Also Published As

Publication number Publication date
AT248148B (en) 1966-07-11
DE1698476B1 (en) 1969-12-11
CH390947A (en) 1965-04-30

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