GB2034826A - Hydraulic pump-turbine plant - Google Patents
Hydraulic pump-turbine plant Download PDFInfo
- Publication number
- GB2034826A GB2034826A GB7938441A GB7938441A GB2034826A GB 2034826 A GB2034826 A GB 2034826A GB 7938441 A GB7938441 A GB 7938441A GB 7938441 A GB7938441 A GB 7938441A GB 2034826 A GB2034826 A GB 2034826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pump
- turbine
- wheel
- wheels
- hydraulic machine
- 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.)
- Granted
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
- F03B3/106—Machines or engines of reaction type; Parts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines the turbine wheel and the pumps wheel being mounted in adjacent positions on the same shaft in a single casing
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Hydraulic Turbines (AREA)
- Earth Drilling (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Power Transmission Devices (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The plant comprises a Pelton turbine and a double stage pump having wheels (3, 4, 5) mounted on a common shaft (2) for rotation in the same direction during turbine or pump operation. The pump diffuser is connected by pipes (12) to the turbine distributor (8). <IMAGE>
Description
SPECIFICATION
Hydraulic machine
Hydraulic machines are known which comprise a reaction turbine and a pump both aligned for the same direction of rotation and wherein the turbine wheel and the pump wheel are keyed on a common shaft with their suction intakes in opposition. These known machines under the name ISOGYRE (Registered Trade Mark) comprise a single spiral tank connected, on the one hand, to the turbine distributor and, on the other hand, to the pump diffuser and are described in Swiss
Patent Nos. 335293, 392421 and 560323.
In installations having high head of water heights, of the order of 600 to 1 500 m, it is difficult to reconcile the optimum speed of the reaction turbine wheel with the optimum speed of the pump wheel or wheels of such a machine, for their common shaft to rotate at a substantially identical optimum speed for the pump and turbine operations.
It has, however, been found that this reconciliation of speed is possible if, in such a machine, an action turbine, for example, of the
Pelton type, is substituted for the reaction turbine.
According to the present invention a hydraulic machine comprises a Pelton turbine and a pump both arranged for rotation in the same direction and wherein the turbine wheel and the pump wheel or wheels are keyed on a common shaft characterised in that the pump diffuser is branched on a collecting conduit simultaneously serving as a turbine distributor.
The invention will be described further, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a schematic axial section of one embodiment; and
Figs. 2 to 4 are views similar to Fig. 1 representing three variations or alternative embodiments.
A hydraulic machine is represented in Fig. 1 and comprises an alternator 1 coaxially mounted on a vertical shaft 2 on which a Pelton turbine wheel 3 and two stage pump wheels 4 and 5 are keyed. Turbine injectors 6, 7 are branched, in known manner, on a distributor 8 disposed in the plane of the turbine wheel 3. The distributor 8 is connected to a forced conduit, likewise in known manner. The turbine wheel 3 is located in a space or pit 9 which is provided with a pneumatic conduit 10 for permitting the maintenance of the water level being evacuated via escape channel 11 below the turbine wheel 3.
The diffuser of the upper pump is connected by pipes 1 2 to the turbine distributor 8, and a priming gate 1 3 is disposed at the height of the diffuser and operable in a manner such that in the closed position gate 13 interrupts the admission of water emanating from the pump into its pipes. Suction intake 14 of the pump opens on to a contrapressure channel 15. Thus, when the hydraulic machine functions as a turbine, the priming gate 1 3 is in the closed position of the tubes 12, the water admission gate 1 6 in the intake 14 of the pump is closed and any water retained in the pump is evacuated. The feed gates (not shown) of the injectors 6, 7 are open and the jets of water coming from these rotatably entrain the Pelton wheel 3.The alternator 1 thus functions as an electric generator -- its rotor being rotatably entrained by the shaft 2 of the wheel 3.
When it is desired to change from turbin action to pumping action, it suffices to interrupt the arrival of water in the injectors 6 and 7, to open the water admission gate 1 6 in the intake 14 of the pump and to open the priming gate 13 and to feed the alternator 1 with electric current in a manner to make it function as a motor. The pump wheels (impellers) 4 and 5 are then rotatably entrained in the same direction as during turbine action. The wheels 4 and 5 force back the water of the contra-pressure channel in the distributor 8 of the turbine and in the forced conduit.
It is noted that a pneumatic pressure must be maintained in the pit 9 of the turbine wheel (rotor) not only during turbine action but also during
pumping, so as to lower the level of water in the escape channel 11 below the turbine wheel 3. Of course, this pneumatic pressure is unnecessary if the free level of water is at the height of the escape channel 11. In this embodiment, it could be necessary, however, to mount an auxiliary feeder pump in the contra-pressure channel 1 5 to ensure the feed of water to the pump under a sufficient pressure during pumping.
In accordance with the variation shown in Fig.
2, the pump wheels 4, 5, are mounted on the shaft 2 above the turbine wheel 3.
In accordance with the variation shown in Fig.
3, the turbine 3 distributor is constituted -by pump tank 17 and the injectors 6, 7, are branched to it via pipes 18.
In accordance with the variation shown in Fig.
4, the turbine wheel 3 is disposed above the pump wheels, 4, 5, and the turbine distributor 8 is replaced by a tank 1 9 found in a plane intermediate between that of the turbine wheel 3 and of the pump wheels 4, 5. The diffuser of the upper pump wheel 4 is branched to it by pipes 12 and the injectors 6, 7, of the turbine are branched to it by pipes 18.
Numerous other variations of the constructive type for the hydraulic machine described and represented in the drawings can be envisaged. For example, the Pelton turbine and the alternator likewise could have a horizontal shaft - the pumps would be keyed on this horizontal shaft.
1. A hydraulic machine comprising a Pelton turbine and a pump both arranged for rotation in the same direction and wherein the turbine wheel and the pump wheel or wheels are keyed on a common shaft, characterized in that the pump diffuser is branched on a collecting conduit simultaneously serving as a turbine distributor.
2. A hydraulic machine as claimed in claim 1, in which the pump wheel or wheels are spaced
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (9)
- **WARNING** start of CLMS field may overlap end of DESC **.SPECIFICATION Hydraulic machine Hydraulic machines are known which comprise a reaction turbine and a pump both aligned for the same direction of rotation and wherein the turbine wheel and the pump wheel are keyed on a common shaft with their suction intakes in opposition. These known machines under the name ISOGYRE (Registered Trade Mark) comprise a single spiral tank connected, on the one hand, to the turbine distributor and, on the other hand, to the pump diffuser and are described in Swiss Patent Nos. 335293, 392421 and 560323.In installations having high head of water heights, of the order of 600 to 1 500 m, it is difficult to reconcile the optimum speed of the reaction turbine wheel with the optimum speed of the pump wheel or wheels of such a machine, for their common shaft to rotate at a substantially identical optimum speed for the pump and turbine operations.It has, however, been found that this reconciliation of speed is possible if, in such a machine, an action turbine, for example, of the Pelton type, is substituted for the reaction turbine.According to the present invention a hydraulic machine comprises a Pelton turbine and a pump both arranged for rotation in the same direction and wherein the turbine wheel and the pump wheel or wheels are keyed on a common shaft characterised in that the pump diffuser is branched on a collecting conduit simultaneously serving as a turbine distributor.The invention will be described further, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a schematic axial section of one embodiment; and Figs. 2 to 4 are views similar to Fig. 1 representing three variations or alternative embodiments.A hydraulic machine is represented in Fig. 1 and comprises an alternator 1 coaxially mounted on a vertical shaft 2 on which a Pelton turbine wheel 3 and two stage pump wheels 4 and 5 are keyed. Turbine injectors 6, 7 are branched, in known manner, on a distributor 8 disposed in the plane of the turbine wheel 3. The distributor 8 is connected to a forced conduit, likewise in known manner. The turbine wheel 3 is located in a space or pit 9 which is provided with a pneumatic conduit 10 for permitting the maintenance of the water level being evacuated via escape channel 11 below the turbine wheel 3.The diffuser of the upper pump is connected by pipes 1 2 to the turbine distributor 8, and a priming gate 1 3 is disposed at the height of the diffuser and operable in a manner such that in the closed position gate 13 interrupts the admission of water emanating from the pump into its pipes. Suction intake 14 of the pump opens on to a contrapressure channel 15. Thus, when the hydraulic machine functions as a turbine, the priming gate 1 3 is in the closed position of the tubes 12, the water admission gate 1 6 in the intake 14 of the pump is closed and any water retained in the pump is evacuated. The feed gates (not shown) of the injectors 6, 7 are open and the jets of water coming from these rotatably entrain the Pelton wheel 3.The alternator 1 thus functions as an electric generator -- its rotor being rotatably entrained by the shaft 2 of the wheel 3.When it is desired to change from turbin action to pumping action, it suffices to interrupt the arrival of water in the injectors 6 and 7, to open the water admission gate 1 6 in the intake 14 of the pump and to open the priming gate 13 and to feed the alternator 1 with electric current in a manner to make it function as a motor. The pump wheels (impellers) 4 and 5 are then rotatably entrained in the same direction as during turbine action. The wheels 4 and 5 force back the water of the contra-pressure channel in the distributor 8 of the turbine and in the forced conduit.It is noted that a pneumatic pressure must be maintained in the pit 9 of the turbine wheel (rotor) not only during turbine action but also during pumping, so as to lower the level of water in the escape channel 11 below the turbine wheel 3. Of course, this pneumatic pressure is unnecessary if the free level of water is at the height of the escape channel 11. In this embodiment, it could be necessary, however, to mount an auxiliary feeder pump in the contra-pressure channel 1 5 to ensure the feed of water to the pump under a sufficient pressure during pumping.In accordance with the variation shown in Fig.
- 2, the pump wheels 4, 5, are mounted on the shaft 2 above the turbine wheel 3.In accordance with the variation shown in Fig.
- 3, the turbine 3 distributor is constituted -by pump tank 17 and the injectors 6, 7, are branched to it via pipes 18.In accordance with the variation shown in Fig.
- 4, the turbine wheel 3 is disposed above the pump wheels, 4, 5, and the turbine distributor 8 is replaced by a tank 1 9 found in a plane intermediate between that of the turbine wheel 3 and of the pump wheels 4, 5. The diffuser of the upper pump wheel 4 is branched to it by pipes 12 and the injectors 6, 7, of the turbine are branched to it by pipes 18.Numerous other variations of the constructive type for the hydraulic machine described and represented in the drawings can be envisaged. For example, the Pelton turbine and the alternator likewise could have a horizontal shaft - the pumps would be keyed on this horizontal shaft.1. A hydraulic machine comprising a Pelton turbine and a pump both arranged for rotation in the same direction and wherein the turbine wheel and the pump wheel or wheels are keyed on a common shaft, characterized in that the pump diffuser is branched on a collecting conduit simultaneously serving as a turbine distributor.2. A hydraulic machine as claimed in claim 1, in which the pump wheel or wheels are spaced from the turbine wheel and the pump diffuser is connected by pipes to the turbine distributor.3. A hydraulic machine as claimed in claim 1, in which the pump wheel or wheels are spaced from the turbine wheel, and the turbine injectors are branched on the pump tank.- 4. A hydraulic machine as claimed in claim 1, in which the pump wheel or wheels are spaced from the turbine wheel, and the turbine injectors and the pump diffuser are connected by pipes to a tank disposed in a plane intermediate between the pump wheel or wheels and the turbine.
- 5. A hydraulic machine as claimed in claim 1, in which the common shaft of the turbine wheel and of the pump wheels is vertical and the wheel or wheels of the pump are keyed at the lower end of the shaft.
- 6. A hydraulic machine as claimed in claim 1, in which the common shaft of the turbine wheel and of the pump wheels is vertical, the turbine wheel being keyed at the lower end of the shaft and the pump wheel or wheels being keyed on the shaft above the turbine wheel, so as to be spaced from this latter.
- 7. A hydraulic machine as claimed in claim 1, in which the turbine pit has pneumatic means to lower the level of the water of the escape channel of the turbine.
- 8. A hydraulic machine as claimed in any of claims 1 to 4, characterized in that the pump is a multi-staged pump.
- 9. A hydraulic machine constructed and arranged to operate substantially as herein described with reference to and as illustrated in any of Figs. 1 to 4 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1215378A CH626138A5 (en) | 1978-11-28 | 1978-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2034826A true GB2034826A (en) | 1980-06-11 |
| GB2034826B GB2034826B (en) | 1982-10-27 |
Family
ID=4380369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7938441A Expired GB2034826B (en) | 1978-11-28 | 1979-11-06 | Hydraulic pump-turbine plant |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS5575573A (en) |
| AR (1) | AR218176A1 (en) |
| AT (1) | AT363403B (en) |
| AU (1) | AU524876B2 (en) |
| BE (1) | BE880133A (en) |
| BR (1) | BR7907652A (en) |
| CH (1) | CH626138A5 (en) |
| DD (1) | DD147392A5 (en) |
| DE (1) | DE2947778A1 (en) |
| ES (1) | ES486033A1 (en) |
| FI (1) | FI793498A (en) |
| FR (1) | FR2442976A1 (en) |
| GB (1) | GB2034826B (en) |
| IT (1) | IT1119539B (en) |
| NL (1) | NL7908130A (en) |
| NO (1) | NO793832L (en) |
| PL (1) | PL219817A1 (en) |
| PT (1) | PT70506A (en) |
| SE (1) | SE7909772L (en) |
| ZA (1) | ZA796106B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2260579A (en) * | 1991-10-17 | 1993-04-21 | Gec Aerospace Ltd | Pelton wheel turbine |
| AT13733U1 (en) * | 2013-03-25 | 2014-07-15 | Garamanta Beteiligungs Gmbh | accumulator |
| CN113090435A (en) * | 2021-05-08 | 2021-07-09 | 重庆水轮机厂有限责任公司 | Water turbine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2060414A (en) * | 1935-09-18 | 1936-11-10 | Fladeland Albert | Turbine |
| FR1372074A (en) * | 1962-10-17 | 1964-09-11 | Charmilles Sa Ateliers | Hydraulic installation comprising a turbine and a pump |
| CH392421A (en) * | 1963-07-19 | 1965-05-15 | Charmilles Sa Ateliers | Hydraulic installation comprising a turbine and a pump |
| GB1092267A (en) * | 1964-09-19 | 1967-11-22 | Ckd Blansko Zd Y Jiriho Dimitr | Improvements in or relating to hydraulic machines for pumped storage water power plants |
| FR95198E (en) * | 1967-05-26 | 1970-07-31 | Grenobloise Etude Appl | Improvements to intermittent duty pumps, turbines and pump turbines. |
| CH560323A5 (en) * | 1972-12-14 | 1975-03-27 | Charmilles Sa Ateliers | |
| FR2359994A1 (en) * | 1976-07-28 | 1978-02-24 | Neyrpic Creusot Loire | Water distribution in impulse turbines - has four nozzles fed from central spherical manifold to direct jets onto wheel |
-
1978
- 1978-11-28 CH CH1215378A patent/CH626138A5/fr not_active IP Right Cessation
-
1979
- 1979-11-06 GB GB7938441A patent/GB2034826B/en not_active Expired
- 1979-11-07 NL NL7908130A patent/NL7908130A/en not_active Application Discontinuation
- 1979-11-08 FI FI793498A patent/FI793498A/en not_active Application Discontinuation
- 1979-11-13 ZA ZA00796106A patent/ZA796106B/en unknown
- 1979-11-16 ES ES486033A patent/ES486033A1/en not_active Expired
- 1979-11-16 AR AR278942A patent/AR218176A1/en active
- 1979-11-19 BE BE0/198191A patent/BE880133A/en unknown
- 1979-11-19 AT AT0736379A patent/AT363403B/en not_active IP Right Cessation
- 1979-11-22 PL PL21981779A patent/PL219817A1/xx unknown
- 1979-11-22 FR FR7928805A patent/FR2442976A1/en active Pending
- 1979-11-22 DD DD79217082A patent/DD147392A5/en unknown
- 1979-11-23 DE DE19792947778 patent/DE2947778A1/en not_active Withdrawn
- 1979-11-26 NO NO793832A patent/NO793832L/en unknown
- 1979-11-26 BR BR7907652A patent/BR7907652A/en unknown
- 1979-11-27 PT PT70506A patent/PT70506A/en unknown
- 1979-11-27 JP JP15347179A patent/JPS5575573A/en active Pending
- 1979-11-27 AU AU53206/79A patent/AU524876B2/en not_active Expired - Fee Related
- 1979-11-27 SE SE7909772A patent/SE7909772L/en not_active Application Discontinuation
- 1979-11-27 IT IT69291/79A patent/IT1119539B/en active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2260579A (en) * | 1991-10-17 | 1993-04-21 | Gec Aerospace Ltd | Pelton wheel turbine |
| GB2260579B (en) * | 1991-10-17 | 1994-05-04 | Gec Aerospace Ltd | Pelton wheel turbine |
| AT13733U1 (en) * | 2013-03-25 | 2014-07-15 | Garamanta Beteiligungs Gmbh | accumulator |
| CN113090435A (en) * | 2021-05-08 | 2021-07-09 | 重庆水轮机厂有限责任公司 | Water turbine |
| CN113090435B (en) * | 2021-05-08 | 2023-02-03 | 重庆水轮机厂有限责任公司 | Water turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| BE880133A (en) | 1980-03-17 |
| JPS5575573A (en) | 1980-06-06 |
| FR2442976A1 (en) | 1980-06-27 |
| ZA796106B (en) | 1980-10-29 |
| AT363403B (en) | 1981-08-10 |
| DE2947778A1 (en) | 1980-06-04 |
| PT70506A (en) | 1979-12-01 |
| IT1119539B (en) | 1986-03-10 |
| PL219817A1 (en) | 1980-07-14 |
| AR218176A1 (en) | 1980-05-15 |
| SE7909772L (en) | 1980-05-29 |
| FI793498A (en) | 1980-05-29 |
| BR7907652A (en) | 1980-07-15 |
| ATA736379A (en) | 1980-12-15 |
| DD147392A5 (en) | 1981-04-01 |
| AU524876B2 (en) | 1982-10-07 |
| AU5320679A (en) | 1980-05-29 |
| ES486033A1 (en) | 1980-05-16 |
| GB2034826B (en) | 1982-10-27 |
| CH626138A5 (en) | 1981-10-30 |
| IT7969291A0 (en) | 1979-11-27 |
| NO793832L (en) | 1980-05-29 |
| NL7908130A (en) | 1980-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |