GB1006299A - Improvements in or relating to hydraulic pumps and reversible pump turbines - Google Patents
Improvements in or relating to hydraulic pumps and reversible pump turbinesInfo
- Publication number
- GB1006299A GB1006299A GB38852/62A GB3885262A GB1006299A GB 1006299 A GB1006299 A GB 1006299A GB 38852/62 A GB38852/62 A GB 38852/62A GB 3885262 A GB3885262 A GB 3885262A GB 1006299 A GB1006299 A GB 1006299A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pump
- impeller
- water
- suction tube
- power absorbed
- 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
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
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/10—Machines or engines of reaction type; Parts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines
- F03B3/103—Machines or engines of reaction type; Parts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines the same wheel acting as turbine wheel and as pump wheel
-
- 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
- F03B15/005—Starting, also of pump-turbines
-
- 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
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/10—Machines or engines of reaction type; Parts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines
-
- 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
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
- F03B3/183—Adjustable vanes, e.g. wicket gates
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/91—Reversible between pump and motor use
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1,006,299. Priming centrifugal pumps. ENGLISH ELECTRIC CO. Ltd. Oct. 14, 1963 [Oct. 15, 1962], No. 38852/62. Heading F1C. A hydraulic pump or reversible pumpturbine includes means for suppressing at least partially the circulation of water in the suction tube immediately upstream of the impeller during priming of the pump or of the pumpturbine in operation as a pump, the means including retractable baffles which may be extended in planes transverse to the tangential direction of the suction tube during priming, and retracted during normal operation. Pumping operation of the pump or pump-turbine shown is started by first accelerating the impeller 11, as by means of an auxiliary motor, from rest to synchronous speed in air, the water being depressed down the suction tube 20 by introducing compressed air through a pipe 31 into a space 28 located between sealing rings 29, 30 and communicating with the suction tube through a bore 27 and a cavity 26 in the impeller. During this phase, water may be fed to the impeller seals to prevent seizure. At synchronous speed, the main driving motor is connected to the power supply, e.g. to the grid, and the auxiliary motor may be disconnected. The power absorbed has now risen to about 3 % of full load. Next, the impeller is progressively filled with water, centrifugal effect causing the water to extend progressively inwards from the outer periphery of the impeller. This may be done by gradually exhausting the air from the suction tube 20 through the pipe 31 to allow the water level to rise slowly into the impeller inlet. Alternatively, water is fed from the delivery pipe of the pump into the space between the impeller 11 and adjustable guide vanes 24 (or fixed diffuser vanes 25) and thence inwardly into the impeller. Or, water from the delivery pipe or an extraneous source may be directed in a jet or jets from the suction tube towards the impeller inlet. The inner boundary of the water may thus be brought inwards to substantially the radius of the smallest-diameter part of the front shroud 13, the power absorbed rising to about 10 % of full load in the case of a pump fitted with adjustable guide vanes 24, which are closed. At least by the time this phase is completed, baffles 41 should each be pivoted about a pin 42 by means of a hydraulic jack 43 from the retracted position to the position in which they each extend radially inwards into the suction tube 20. More of the air is then exhausted from the suction tube through the pipe 31, allowing water partially to fill the impeller eye. The power absorbed has now risen to about 17 % of full load for a pump with adjustable guide vanes 24, and to about 40 % for a pump having only fixed diffuser vanes 25. So far, the operation is stable. In the next phase, in which the remaining air is exhausted, the power absorbed rises rapidly at a rate which tends to be difficult to control. By destroying the circumferential component of the vortical flow adjacent the wall of the suction tube 20, the baffles 41 reduce the rate of power rise to an acceptable value, whereby this phase may be spread over a period of 20 seconds instead of a fraction of a second. At the end of this phase, the power absorbed has risen to about 27 % of full load for a pump having adjustable guide vanes 24, or about 60% for a pump having fixed diffuser vanes 25 only. Finally, by gradually opening the guide vanes 24 (or in their absence, a valve in the delivery pipe), the power absorbed is increased to full load. In normal operation, the baffles 41 are retracted.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB38852/62A GB1006299A (en) | 1962-10-15 | 1962-10-15 | Improvements in or relating to hydraulic pumps and reversible pump turbines |
CH1197463A CH403492A (en) | 1962-10-15 | 1963-09-26 | Pump or pump turbine for hydropower plants |
US314353A US3237563A (en) | 1962-10-15 | 1963-10-07 | Hydraulic pumps and reversible pump turbines |
DE19631528819 DE1528819A1 (en) | 1962-10-15 | 1963-10-14 | Single-stage, single-flow pump or reversible pump-turbine of radial design |
AT825863A AT248255B (en) | 1962-10-15 | 1963-10-15 | Pump or pump turbine |
ES0292502A ES292502A1 (en) | 1962-10-15 | 1963-10-15 | Hydraulic pumps and reversible pump turbines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB38852/62A GB1006299A (en) | 1962-10-15 | 1962-10-15 | Improvements in or relating to hydraulic pumps and reversible pump turbines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1006299A true GB1006299A (en) | 1965-09-29 |
Family
ID=10406091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38852/62A Expired GB1006299A (en) | 1962-10-15 | 1962-10-15 | Improvements in or relating to hydraulic pumps and reversible pump turbines |
Country Status (6)
Country | Link |
---|---|
US (1) | US3237563A (en) |
AT (1) | AT248255B (en) |
CH (1) | CH403492A (en) |
DE (1) | DE1528819A1 (en) |
ES (1) | ES292502A1 (en) |
GB (1) | GB1006299A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0508154A1 (en) * | 1991-03-13 | 1992-10-14 | Kabushiki Kaisha Toshiba | High head pump-turbines |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3495407A (en) * | 1968-04-16 | 1970-02-17 | Aerojet General Co | Marine propulsion motors |
CA932799A (en) * | 1970-10-01 | 1973-08-28 | Sinclair Harold | Electrical power generating plant |
US3861823A (en) * | 1973-01-15 | 1975-01-21 | Caterpillar Tractor Co | Compressor with retractable guide vanes |
US3927951A (en) * | 1973-09-08 | 1975-12-23 | Tokyo Shibaura Electric Co | Water turbine |
CZ303917B6 (en) * | 2006-10-05 | 2013-06-26 | Jakoube@Jirí | Water turbine draft tube |
FR2942274B1 (en) * | 2009-02-18 | 2014-04-18 | Alstom Hydro France | HYDRAULIC ENERGY CONVERSION INSTALLATION AND METHOD OF CONTROLLING SUCH INSTALLATION |
DE102010050001A1 (en) * | 2010-11-02 | 2012-05-03 | Voith Patent Gmbh | Pump in Francis design for a hydroelectric power station |
DE102011008869A1 (en) * | 2011-01-18 | 2012-07-19 | Voith Patent Gmbh | Hydro turbine or pump turbine or other hydraulic machine |
CA2908772A1 (en) * | 2013-04-08 | 2014-10-16 | Voith Patent Gmbh | Device and method for reducing pressure fluctuations in the suction pipe of a water turbine or water pump or water pump turbine |
AT521415B1 (en) * | 2018-07-03 | 2021-01-15 | Andritz Hydro Gmbh | SYSTEM FOR ENERGY GENERATION |
JP7431682B2 (en) * | 2020-06-19 | 2024-02-15 | 株式会社東芝 | How to start a Francis turbine and Francis turbine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2687280A (en) * | 1954-08-24 | Pump-turbine | ||
US2306742A (en) * | 1940-06-26 | 1942-12-29 | Lewis F Moody | Pump |
US2262191A (en) * | 1940-06-26 | 1941-11-11 | Lewis F Moody | Pump |
FR951944A (en) * | 1947-08-08 | 1949-11-07 | Rateau Soc | Further development of axial compressors |
US3047267A (en) * | 1957-02-18 | 1962-07-31 | Neyrpic Ets | Method and means for quieting the hydraulic operation of turbines |
-
1962
- 1962-10-15 GB GB38852/62A patent/GB1006299A/en not_active Expired
-
1963
- 1963-09-26 CH CH1197463A patent/CH403492A/en unknown
- 1963-10-07 US US314353A patent/US3237563A/en not_active Expired - Lifetime
- 1963-10-14 DE DE19631528819 patent/DE1528819A1/en active Pending
- 1963-10-15 ES ES0292502A patent/ES292502A1/en not_active Expired
- 1963-10-15 AT AT825863A patent/AT248255B/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0508154A1 (en) * | 1991-03-13 | 1992-10-14 | Kabushiki Kaisha Toshiba | High head pump-turbines |
US5290148A (en) * | 1991-03-13 | 1994-03-01 | Kabushiki Kaisha Toshiba | High head pump-turbines |
Also Published As
Publication number | Publication date |
---|---|
US3237563A (en) | 1966-03-01 |
DE1528819A1 (en) | 1969-10-16 |
AT248255B (en) | 1966-07-25 |
CH403492A (en) | 1965-11-30 |
ES292502A1 (en) | 1964-01-01 |
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