GB892729A - Improvements in overspeed controls for variable pitch blade hydraulic turbines - Google Patents

Improvements in overspeed controls for variable pitch blade hydraulic turbines

Info

Publication number
GB892729A
GB892729A GB17972/60A GB1797260A GB892729A GB 892729 A GB892729 A GB 892729A GB 17972/60 A GB17972/60 A GB 17972/60A GB 1797260 A GB1797260 A GB 1797260A GB 892729 A GB892729 A GB 892729A
Authority
GB
United Kingdom
Prior art keywords
valve
blades
conduit
overspeed
turbine
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
GB17972/60A
Inventor
Beverly Robert Nichols
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.)
Allis Chalmers Corp
Original Assignee
Allis Chalmers Corp
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 Allis Chalmers Corp filed Critical Allis Chalmers Corp
Priority to GB17972/60A priority Critical patent/GB892729A/en
Publication of GB892729A publication Critical patent/GB892729A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B15/00—Controlling
    • F03B15/02—Controlling by varying liquid flow
    • F03B15/04—Controlling by varying liquid flow of turbines
    • F03B15/06—Regulating, i.e. acting automatically
    • F03B15/08—Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

892,729. Hydraulic turbines. ALLIS-CHALMERS MANUFACTURING CO. May 20, 1960, No. 17972/60. Class 110 (3). [Also in Group XXIX] An hydraulic turbine having blades 8 adjustable by a fluid-pressure servomotor 12 under the control of a valve 56 which is actuated by a turbine-driven governor 38 so that the pitch of the blades is decreased as the speed increases and vice versa has an overspeed governor 90 operating a valve 96 which controls an intercept valve 66 in the conduits 52, 54 between the valve 56 and the servomotor whereby on overspeeding of the turbine, resulting in venting of a chamber 80 and consequent downward movement of the intercept valve member, the portions 52b, 54b of the conduits 52, 54 are interconnected with each other to equalize the pressures on the two sides of the servomotor piston so that the blades, which are so arranged that the water pressure constantly urges them towards their coarse pitch positions, take up these positions in which the runaway speed is lowest. Under overspeed conditions the control valve 56 will be in its lowest position so that servo fluid from an inlet 50 will be acting through the conduit 52 on differential areas 68, 70 of the intercept valve to assist a spring 86 in lowering the intercept valve member. At the same time the conduit 54 will be vented to an outlet 62 so that the interconnected conduit portions 52b, 54b are also vented through the conduit 54. The valve 96, which is continuously rotated to ensure freedom of operation, is adjustably loaded by a spring 150. A follow-up arrangement is stated to be provided between the blades and the control valve 56.
GB17972/60A 1960-05-20 1960-05-20 Improvements in overspeed controls for variable pitch blade hydraulic turbines Expired GB892729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17972/60A GB892729A (en) 1960-05-20 1960-05-20 Improvements in overspeed controls for variable pitch blade hydraulic turbines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17972/60A GB892729A (en) 1960-05-20 1960-05-20 Improvements in overspeed controls for variable pitch blade hydraulic turbines

Publications (1)

Publication Number Publication Date
GB892729A true GB892729A (en) 1962-03-28

Family

ID=10104411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17972/60A Expired GB892729A (en) 1960-05-20 1960-05-20 Improvements in overspeed controls for variable pitch blade hydraulic turbines

Country Status (1)

Country Link
GB (1) GB892729A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140508A (en) * 1983-05-25 1984-11-28 Howden James & Co Ltd Wind turbines
GB2186638A (en) * 1986-02-05 1987-08-19 Howden James & Co Ltd Wind turbines
WO2010002264A3 (en) * 2008-07-03 2010-10-14 Hydra Tidal Energy Technology As Device for controlling turbine blade pitch
CN113062831A (en) * 2021-04-12 2021-07-02 南通理工学院 Power generation device for new energy hybrid power ship

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140508A (en) * 1983-05-25 1984-11-28 Howden James & Co Ltd Wind turbines
GB2186638A (en) * 1986-02-05 1987-08-19 Howden James & Co Ltd Wind turbines
WO2010002264A3 (en) * 2008-07-03 2010-10-14 Hydra Tidal Energy Technology As Device for controlling turbine blade pitch
CN102084121A (en) * 2008-07-03 2011-06-01 海德拉潮汐能科技公司 Device for controlling turbine blade pitch
CN113062831A (en) * 2021-04-12 2021-07-02 南通理工学院 Power generation device for new energy hybrid power ship
CN113062831B (en) * 2021-04-12 2022-04-19 南通理工学院 Power generation device for new energy hybrid power ship

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