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GB1089641A - Improvements in and relating to speed governing systems for steam turbines - Google Patents

Improvements in and relating to speed governing systems for steam turbines

Info

Publication number
GB1089641A
GB1089641A GB23494/64A GB2349464A GB1089641A GB 1089641 A GB1089641 A GB 1089641A GB 23494/64 A GB23494/64 A GB 23494/64A GB 2349464 A GB2349464 A GB 2349464A GB 1089641 A GB1089641 A GB 1089641A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
governor
valves
actuating
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
GB23494/64A
Inventor
William George Watson
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.)
CA Parsons and Co Ltd
Original Assignee
CA Parsons and 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 CA Parsons and Co Ltd filed Critical CA Parsons and Co Ltd
Priority to GB23494/64A priority Critical patent/GB1089641A/en
Priority to CH774365A priority patent/CH438373A/en
Priority to US461304A priority patent/US3319422A/en
Priority to DE19651426844 priority patent/DE1426844A1/en
Publication of GB1089641A publication Critical patent/GB1089641A/en
Expired 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
    • 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
    • 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
    • F01D21/02—Shutting-down responsive to overspeed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Abstract

1,089,641. Fluid-pressure servomotor systems. C.A. PARSONS & CO. Ltd. May 24, 1965 [June 5, 1964], No.23494/64. Heading G3P. The stop valve of a steam turbine is actuated by hydraulic pressure controlled by a speed governor valve 4 while valves 6, 7 responding to changes in condenser and stop valve pressure, respectively, automatically adjust the governor setting to correspond to reductions in turbine load. The pressure controlled by the valve 4 acts on the stop valve and on one side of a differential pressure gauge 26 in parallel with a non-return valve 29, the other side of the gauge and valve being subjected to the pressure controlled by the valves 6 and 7. The gauge controls a switch 27 for resetting the governor motor which due to the valve 29 maintaining a pressure differential, remains at the reduced load setting after the valves 6 and 7 have returned to their original positions, the governor being reset manually to restore the load on the turbine. Actuating pressure for the valve 7 is obtained from a point between a pair of orifice plates in the steam line while the valve 6 incorporates a valve which closes the connection to drain when the hydraulic pressure falls to a predetermined minimum value. In a modified system the governor valve controls a fire-resistant fluid which in turn controls the fluid for actuating the stop valve through a relay (34 Fig. 2, not shown), the relay containing two pairs of opposed bellows for actuating the relay valve (39) and a valve (45) providing accelerated response to rapid falls in governor controlled pressure
GB23494/64A 1964-06-05 1964-06-05 Improvements in and relating to speed governing systems for steam turbines Expired GB1089641A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB23494/64A GB1089641A (en) 1964-06-05 1964-06-05 Improvements in and relating to speed governing systems for steam turbines
CH774365A CH438373A (en) 1964-06-05 1965-06-03 Control device for steam turbines
US461304A US3319422A (en) 1964-06-05 1965-06-04 Speed governing systems for steam turbines
DE19651426844 DE1426844A1 (en) 1964-06-05 1965-06-04 Speed controller for steam turbines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23494/64A GB1089641A (en) 1964-06-05 1964-06-05 Improvements in and relating to speed governing systems for steam turbines

Publications (1)

Publication Number Publication Date
GB1089641A true GB1089641A (en) 1967-11-01

Family

ID=10196531

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23494/64A Expired GB1089641A (en) 1964-06-05 1964-06-05 Improvements in and relating to speed governing systems for steam turbines

Country Status (4)

Country Link
US (1) US3319422A (en)
CH (1) CH438373A (en)
DE (1) DE1426844A1 (en)
GB (1) GB1089641A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109736903A (en) * 2019-03-07 2019-05-10 中国船舶重工集团公司第七0四研究所 High Voltage Electro-Hydraulic Speed Governing System for Marine Turbine Generator Sets with Multiple Valves and Multiple Oil Engines

Also Published As

Publication number Publication date
US3319422A (en) 1967-05-16
DE1426844A1 (en) 1969-09-25
CH438373A (en) 1967-06-30

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