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GB1149909A - An emergency seal for a hydro-electric unit - Google Patents

An emergency seal for a hydro-electric unit

Info

Publication number
GB1149909A
GB1149909A GB42296/66A GB4229666A GB1149909A GB 1149909 A GB1149909 A GB 1149909A GB 42296/66 A GB42296/66 A GB 42296/66A GB 4229666 A GB4229666 A GB 4229666A GB 1149909 A GB1149909 A GB 1149909A
Authority
GB
United Kingdom
Prior art keywords
seal
emergency
ring
drain
emergency seal
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
GB42296/66A
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.)
Societe des Forges et Ateliers du Creusot
Original Assignee
Societe des Forges et Ateliers du Creusot
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 Societe des Forges et Ateliers du Creusot filed Critical Societe des Forges et Ateliers du Creusot
Publication of GB1149909A publication Critical patent/GB1149909A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/008—Sealings comprising at least two sealings in succession with provision to put out of action at least one sealing; One sealing sealing only on standstill; Emergency or servicing sealings
    • 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
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/006—Sealing arrangements
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Turbines (AREA)
  • Sealing Devices (AREA)

Abstract

1,149,909. Emergency seals. SOC. DES FORGES ET ATELIERS DU CREUSOT. 22 Sept., 1966 [22 Sept., 1965], No. 42296/66. Heading F2B. In a hydro-electric unit an emergency seal for use when the main shaft seal 3 is being repaired or replaced is located between the main seal 3 and the turbine rotor 2 and comprises a ring 10, Fig. 2, secured to a flexible diaphragm 12 and having a gasket 11 which is normally spaced from a bearing surface 14 rigid with the turbine shaft 1, means being provided to move the ring axially when required so that the gasket 11 sealingly contacts the surface 14. The diaphragm 12 is connected to a part 13 which is secured to the casing wall 7 and acts as a guide and a stop for the ring 10. Rods 18 connected to the ring 10 carry pistons 19 of actuators 20 operable to close or open the emergency seal by hydraulic pressure controlled by a distributer 25 which connects passages 26 and 27 leading to the actuators with either a pressure oil feed 30 or a drain 31. Springs 21 bias the pistons 19 in the sense of opening the emergency seal and nuts 23 on the ends 22 of the rods 18 are adapted to co-operate with surfaces 24 to lock the emergency seal in its closed position; nuts 23 may also be used to close the seal manually. The enclosure 8 between the seals may be connected, to drain 33 or to the turbine inlet water pipe 9 by a three way cock 32, which may be coupled with the distributer 25, a slight delay being arranged so that the emergency seal is closed before the enclosure 8 is opened to drain.
GB42296/66A 1965-09-22 1966-09-22 An emergency seal for a hydro-electric unit Expired GB1149909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR32258A FR1457650A (en) 1965-09-22 1965-09-22 Emergency seal for hydro-electric unit

Publications (1)

Publication Number Publication Date
GB1149909A true GB1149909A (en) 1969-04-23

Family

ID=8588840

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42296/66A Expired GB1149909A (en) 1965-09-22 1966-09-22 An emergency seal for a hydro-electric unit

Country Status (6)

Country Link
BR (1) BR6682970D0 (en)
DE (1) DE1525844B1 (en)
ES (1) ES331407A1 (en)
FR (1) FR1457650A (en)
GB (1) GB1149909A (en)
SE (1) SE329981B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2323132A1 (en) * 1972-05-08 1973-11-22 Snecma IMPROVED SEALING DEVICES BETWEEN A MOTOR ELEMENT AND A RECEIVING ELEMENT. RELEASABLE COUPLING ELEMENTS ARE CONNECTED
FR2556790A1 (en) * 1983-12-16 1985-06-21 Framatome Sa DEVICE FOR CONTROLLING THE PRESSURIZED FLUID SUPPLY OF A HYDRAULIC CIRCUIT ACCORDING TO THE LOCKING OR UNLOCKING STATE OF TWO MECHANICAL ORGANS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113700591B (en) * 2021-09-23 2023-11-21 国网浙江省电力有限公司江山市供电公司 An impeller protection device for hydropower generation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH98860A (en) * 1921-06-28 1923-04-16 Bischof Bernhard Device for sealing a rotating shaft.
US2096899A (en) * 1935-08-07 1937-10-26 Ingersoll Rand Co Sealing device
US2254862A (en) * 1940-04-16 1941-09-02 Worthington Pump & Mach Corp Shaft seal for centrifugal machines
US2465526A (en) * 1942-07-29 1949-03-29 Daniel And Florence Guggenheim Pump sealing means
FR1086619A (en) * 1952-11-06 1955-02-15 Licentia Gmbh Axial oil seal
NL99859C (en) * 1954-10-21
US2917330A (en) * 1957-06-20 1959-12-15 Fairchild Engine & Airplane Auxiliary seal
DE1143712B (en) * 1958-04-01 1963-02-14 Sigma Olomouc Narodni Podnik Stuffing box for centrifugal and axial pumps with auxiliary seal to replace the stuffing box packing
US3034796A (en) * 1959-09-11 1962-05-15 Gen Electric Shaft seal
FR1306532A (en) * 1961-11-21 1962-10-13 Cie Constr Gros Mat Electromec Sealing and braking device for rotating machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2323132A1 (en) * 1972-05-08 1973-11-22 Snecma IMPROVED SEALING DEVICES BETWEEN A MOTOR ELEMENT AND A RECEIVING ELEMENT. RELEASABLE COUPLING ELEMENTS ARE CONNECTED
FR2556790A1 (en) * 1983-12-16 1985-06-21 Framatome Sa DEVICE FOR CONTROLLING THE PRESSURIZED FLUID SUPPLY OF A HYDRAULIC CIRCUIT ACCORDING TO THE LOCKING OR UNLOCKING STATE OF TWO MECHANICAL ORGANS

Also Published As

Publication number Publication date
FR1457650A (en) 1966-01-24
DE1525844B1 (en) 1970-04-02
ES331407A1 (en) 1967-07-01
SE329981B (en) 1970-10-26
BR6682970D0 (en) 1973-02-22

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