WO2002055884A1 - Rotor pour turbine a eau ou pompe a eau - Google Patents
Rotor pour turbine a eau ou pompe a eau Download PDFInfo
- Publication number
- WO2002055884A1 WO2002055884A1 PCT/EP2001/014630 EP0114630W WO02055884A1 WO 2002055884 A1 WO2002055884 A1 WO 2002055884A1 EP 0114630 W EP0114630 W EP 0114630W WO 02055884 A1 WO02055884 A1 WO 02055884A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- blades
- main
- impeller according
- main blade
- Prior art date
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
- F03B3/04—Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
- F03B3/06—Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines with adjustable blades, e.g. Kaplan turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/181—Axial flow rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/301—Cross-section characteristics
-
- 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
Definitions
- the invention relates to the field of fluid-flow machines for use with liquids. It particularly affects Kaplan turbines.
- the impellers of such turbines have a shaft and a number of blades which are carried by the shaft.
- the blades can be rotated about axes of rotation which are arranged perpendicular to the longitudinal axis of the shaft.
- An adjustment mechanism is assigned to the blades, which allows the blades to be pivoted about the relevant axis of rotation. The adjustment of the blades serves to optimize the efficiency of the turbine, across the entire working area.
- the invention is therefore based on the object of specifying a method and a hydraulic machine with which the efficiencies in the work area can be improved.
- At least some of the blades are designed as a double blade, comprising a main blade and a secondary blade.
- the two blades are arranged essentially parallel to one another, so that a large area of each blade is opposite a large area of the other blade.
- certain deviations from parallelism are conceivable.
- the entrance area of a blade i.e. the area of the blade leading edge is normally subject to a high load.
- the leading edge of a scoop creates cavitation and eddies occur. Optimal blade loading is not possible, and the application area of the turbomachine is restricted.
- a double blade comprising one is used
- the load per individual blade is reduced - i.e. the loading of the leading edge area of the main blade and the leading edge area of the secondary blade - compared to blades according to the prior art.
- the load acting on the individual blade is distributed more or less evenly over the blade.
- the risk of cavitation is reduced, as is the risk of eddies occurring in the area of the leading edge of each individual blade.
- the secondary vane can thus be arranged on the pressure side or on the suction side of the main vane.
- the two partial blades - main blade and secondary blade - can be attached to each other by means of webs.
- the webs are expediently welded to the relevant surfaces of the blades.
- the webs run best in the direction of flow. However, an inclination towards the direction of flow is also conceivable. Individual blade areas can thus be additionally loaded or relieved.
- the two partial blades there is a distance between the two partial blades, so that the two partial blades form an intermediate space between them, through which liquid flows.
- the distance will generally be almost constant over the entire area of the space. Generally it will be larger than the thickness of a partial blade.
- Both blades i.e. Main blade and secondary blade can be the same size. They can even be congruent in a projection. However, this is not absolutely necessary.
- the leading edge of the secondary blade as seen in the direction of rotation, can also lie in front of or behind the leading edge of the main blade.
- the invention can be used in any type of fluid-operated flow machine.
- the invention is particularly suitable for use in Kaplan turbines.
- other types of turbines are also possible, such as, for example, propeller turbines, these are turbines in which the turbine blades cannot be adjusted.
- the invention can be applied to Francis turbines and pump turbines and to water pumps in general.
- Blade of a double blade can be moved relative to each other, preferably in the installed state.
- the displacement can take place in such a way that the distance between the two partial blades is changed, or that the displacement takes place parallel to the large areas of the partial blades, so that, for example, the positions of the leading edges are changed relative to one another.
- Figure 1 shows a water turbine with adjustable blades in elevation and partially in section.
- Figure 2 shows the two blades of the main blade and the secondary blade, seen in plan view.
- FIG. 3 shows the two shovel blades according to FIG. 2 in one
- the machine shown in FIG. 1 is a
- Kaplan turbine A rotor with a shaft 1 and a number of blades 2 can be seen.
- the blades 2 are rotatably mounted on the shaft 1.
- the axis 1.1 of the shaft 1 runs vertically.
- the pivot axes of the blades 2 run perpendicular to it, thus horizontally.
- a flow channel 3 can also be seen, through which water reaches the area of the blades 2.
- Each blade 2 has two blades, namely a main blade and a secondary blade. For reasons of clarity in the drawing, however, this is not shown in detail here.
- the main blade 2.2 shown in FIG. 2 has an entry edge 2.2.1 and an exit edge 2.2.2.
- the secondary blade 2.3 has an entry edge 2.3.1 and an exit edge 2.3.2.
- the secondary blade is attached to the main blade by means of one or more webs 2.4. The blades are adjusted via the pivot pin or blade root 2.5.
- Secondary blade 2.3 recognizable. As can be seen, the leading edge 2.3.1 of the secondary blade 2.3 is offset from the leading edge 2.2.1 of the main blade 2.2. Seen in the direction of rotation of the impeller, the leading edge of the secondary blade 2.3 lies behind the leading edge of the main blade 2.2.
- both partial blades - main blade and secondary blade 2.3 - are approximately the same thickness. However, this could also be different.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Hydraulic Turbines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10100983A DE10100983A1 (de) | 2001-01-10 | 2001-01-10 | Laufrad für eine Wasserturbine oder Wasserpumpe |
DE10100983.6 | 2001-01-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002055884A1 true WO2002055884A1 (fr) | 2002-07-18 |
Family
ID=7670243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/014630 WO2002055884A1 (fr) | 2001-01-10 | 2001-12-12 | Rotor pour turbine a eau ou pompe a eau |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE10100983A1 (fr) |
WO (1) | WO2002055884A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1806505A1 (fr) * | 2006-01-05 | 2007-07-11 | Hitachi Plant Technologies, Ltd. | Pompe axial |
EP2107235A1 (fr) * | 2008-04-02 | 2009-10-07 | Lm Glasfiber A/S | Pale d'éolienne dotée d'une surface portante auxiliaire |
CN102072068A (zh) * | 2011-02-28 | 2011-05-25 | 重庆云河水电股份有限公司 | 五叶片桨叶操作机构 |
CN102072067A (zh) * | 2011-02-28 | 2011-05-25 | 重庆云河水电股份有限公司 | 四叶片桨叶操作机构 |
CN102430923A (zh) * | 2011-09-30 | 2012-05-02 | 东方电气集团东方电机有限公司 | 水轮机转轮空中翻身方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012018066A1 (de) * | 2012-09-13 | 2014-03-13 | Voith Patent Gmbh | Wasserturbine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE83050C (fr) * | 1900-01-01 | |||
US1234070A (en) * | 1911-10-21 | 1917-07-17 | George Henry Nitschke | Screw-propeller. |
US2006339A (en) * | 1933-01-10 | 1935-07-02 | Voith Gmbh J M | Hydraulic machine |
DE19900960A1 (de) * | 1998-02-27 | 2000-07-13 | Josef Schleich | Komplex von Bau- und Verfahrensweisen mit zugeordnetem Bauelementensatz für Wasserkrafterzeugung und Nutzung und zur Wasserbehandlung |
DE19931035A1 (de) * | 1999-07-06 | 2001-01-25 | Rudolf Bannasch | Rotor mit gespaltenem Rotorblatt |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1836860A (en) * | 1921-01-29 | 1931-12-15 | Moody Lewis Ferry | Vane formation for rotary elements |
US1553627A (en) * | 1922-06-07 | 1925-09-15 | Allis Chalmers Mfg Co | Rotor |
DE19803589A1 (de) * | 1998-01-30 | 1999-08-12 | Voith Hydro Gmbh & Co Kg | Verfahren zum Herstellen eines Bauteiles einer Strömungsmaschine |
-
2001
- 2001-01-10 DE DE10100983A patent/DE10100983A1/de not_active Withdrawn
- 2001-12-12 WO PCT/EP2001/014630 patent/WO2002055884A1/fr not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE83050C (fr) * | 1900-01-01 | |||
US1234070A (en) * | 1911-10-21 | 1917-07-17 | George Henry Nitschke | Screw-propeller. |
US2006339A (en) * | 1933-01-10 | 1935-07-02 | Voith Gmbh J M | Hydraulic machine |
DE19900960A1 (de) * | 1998-02-27 | 2000-07-13 | Josef Schleich | Komplex von Bau- und Verfahrensweisen mit zugeordnetem Bauelementensatz für Wasserkrafterzeugung und Nutzung und zur Wasserbehandlung |
DE19931035A1 (de) * | 1999-07-06 | 2001-01-25 | Rudolf Bannasch | Rotor mit gespaltenem Rotorblatt |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1806505A1 (fr) * | 2006-01-05 | 2007-07-11 | Hitachi Plant Technologies, Ltd. | Pompe axial |
US8092189B2 (en) | 2006-01-05 | 2012-01-10 | Hitachi Plant Technologies, Ltd. | Axial flow pump |
EP2107235A1 (fr) * | 2008-04-02 | 2009-10-07 | Lm Glasfiber A/S | Pale d'éolienne dotée d'une surface portante auxiliaire |
WO2009121927A1 (fr) * | 2008-04-02 | 2009-10-08 | Lm Glasfiber A/S | Aube d’éolienne possédant un contour auxiliaire |
CN102046965A (zh) * | 2008-04-02 | 2011-05-04 | Lm玻璃纤维制品有限公司 | 带有辅助翼面的风力涡轮机叶片 |
US8834130B2 (en) | 2008-04-02 | 2014-09-16 | Peter Fuglsang | Wind turbine blade with an auxiliary airfoil |
CN102072068A (zh) * | 2011-02-28 | 2011-05-25 | 重庆云河水电股份有限公司 | 五叶片桨叶操作机构 |
CN102072067A (zh) * | 2011-02-28 | 2011-05-25 | 重庆云河水电股份有限公司 | 四叶片桨叶操作机构 |
CN102072068B (zh) * | 2011-02-28 | 2013-01-30 | 重庆云河水电股份有限公司 | 五叶片桨叶操作机构 |
CN102072067B (zh) * | 2011-02-28 | 2013-08-14 | 重庆云河水电股份有限公司 | 四叶片桨叶操作机构 |
CN102430923A (zh) * | 2011-09-30 | 2012-05-02 | 东方电气集团东方电机有限公司 | 水轮机转轮空中翻身方法 |
Also Published As
Publication number | Publication date |
---|---|
DE10100983A1 (de) | 2002-07-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE112006001614B4 (de) | Turbomaschinenschaufel | |
DE2953333C1 (de) | Turbinenabdampfstutzen | |
DE4126907C2 (fr) | ||
EP2025945B1 (fr) | Machine de traitement des écoulements dotée d'un creux de paroi de canal de ceinture | |
EP2623793B1 (fr) | Turbomachine avec grille d'aubes | |
EP0916812B1 (fr) | Etage final pour turbine axial | |
EP1766192B1 (fr) | Roue a aubes d'une turbine presentant une aube et au moins un canal refrigerant | |
DE102007027427A1 (de) | Schaufeldeckband mit Überstand | |
DE69012275T2 (de) | Laufschaufel für Axialströmungsmaschine. | |
CH694257A5 (de) | Dampfturbine. | |
DE19722353A1 (de) | Kreiselpumpe mit einer Einlaufleiteinrichtung | |
DE102005027097A1 (de) | Statorscheibe für Turbomolekularpumpe | |
DE102004029109A1 (de) | Francisturbine | |
WO2002055884A1 (fr) | Rotor pour turbine a eau ou pompe a eau | |
CH699598A1 (de) | Schaufelreihe für die Endstufe einer Dampfturbine. | |
WO2000057030A1 (fr) | Aube de turbomachine | |
DE3210161C1 (de) | Fluessigkeitsringkompressor fuer Gase | |
CH714302A2 (de) | Aerodynamisch optimiertes Rotorblatt. | |
DE2208857A1 (de) | Hydrodynamische bremse | |
DE2733066A1 (de) | Druckgasturbine | |
DE10325698B4 (de) | Laufrad für eine Francisturbine | |
AT526083B1 (de) | Leitschaufel | |
WO2018054811A1 (fr) | Agencement pour l'amenée d'un flux massique supplémentaire dans un flux massique principal | |
CH650563A5 (en) | Diffuser in a centrifugal driven machine | |
EP3159536A1 (fr) | Ensemble rotor pour une turbine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |