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
  • F03B7/00—Water wheels
  • F03B7/003—Water wheels with buckets receiving the liquid
• • 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
  • F03B1/00—Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto
  • F03B1/02—Buckets; Bucket-carrying rotors
• • 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
  • Y02E10/00—Energy generation through renewable energy sources
  • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

• the present invention relates to hydraulic paddle wheels, a device that uses the potential and dynamic energy of water streams and tides of all kinds to transform it into mechanical energy and or electricity.
• State of the art
• the existing wheels to date using the energy of the water in the natural direction of the current, are paddle wheels assembled on a rotating frame consisting of discs with spokes of maintains up to the axis of rotation, water enters from below or on the side with inlet valves, the blades open on the side of the water inlet are also open on the inner side of the wheel.
• the present TURBINE WHEEL in AUBES adapts the traditional impeller with a vane design that prevents overflow of the water inwards allowing rotations at high speeds and the uncompressed filling of the entire vacuum between the blades, the flow rates, by these two factors, are much higher and makes the impellers comparable in performance to the turbines.
• the filling of the water is done by means of an upstream distributor consisting of adjustable shutters so as not to have shocks of the incoming water vein on the wheel it allows to use the totality of the energy potential height between the upstream and downstream levels of the river and operate in pressure, the potential energy is transformed into mechanical energy.
• the present invention relates to a paddlewheel which uses the potential and dynamic energy of the water of rivers and tides to transform it into mechanical energy which can be converted into electricity, it is composed of:
• rotor (1) constituted by blades (4) held by disks (3) the disks are connected to the shaft (A) by radii (2) of variable shape and number in According to the forces to be transmitted, the rotating shaft is held at its ends by bearings held by casings, one at each end.
• An upstream distributor (6) composed of several adjustable flaps (7).
• FIG. 1 represents the overall cross-sectional overview of a wheel taken as an example and which comprises:
• the rotating part (1) composed of the rotating bearing shaft (A) - spokes (2) - discs (3) - blades (4), in the example presented the number of blades is equal to 16 but this number may be more or less important depending on the geometric arrangements that may vary depending on the characteristics of the sites to be equipped, this rotating part for the part located between the upstream level and the downstream level is entirely in the water
• the lower corridor (5) fixed part of a width at least equivalent to a spacing between two blades to maintain the pressure (P) induced by the height (H) difference in water levels between upstream and downstream. 'downstream. When the dawn leaves the corridor the pressure P disappears, this pressure was recovered by the wheel and transmitted to the shaft (A) for mechanical or energetic use. This is a so-called pressure wheel that operates only by the pressure (P) at the corridor (5) and whose energy is released when the pressure P disappears with the exhaust of the blade.
• the dispenser (6) consisting of adjustable flaps (7), in this case four in number - Figure 1 represent them in an admission position water in the wheel and Figure 2 in a closed position, in this case the water no longer enters the wheel and the wheel no longer works.
• This distributor blocks the direct entry of the water vein into the source wheel of shock and ebb, distributes the water vein, orients the water flows, and regulates the flow rates and speeds thus allowing optimum filling. of the wheel.
• the trajectory of the blades uses only a small external cylindrical volume which leaves perfectly free the interior volume in which can be implanted trees of diameter adapted to the lengths to be crossed.
• the general shape is cylindrical and of all lengths - for long lengths of intermediate radii will be necessary.
• FIG. 3 shows more precisely the shape of the section of these blades consisting of two parts: a main curved part (8) whose function is to receive the flow of incoming water by deflecting it towards the top of the blade in order to eliminating shocks source of losses and a straight part (9) of connection between two successive blades, this blade vane connection closes the vanes towards the inside of the wheel and thus prevents any penetration of water to the inside the wheel which allows the filling and the pressurization (P) by the height of water - the curvature of the blades, associated with the distribution and orientation of the incoming water given by the flaps (7) , is such that there is no shock of the flow of water entering the rear wall thus formed.
• P filling and the pressurization
• the assembly detail (D) shows that a vacuum (V) is reserved to allow the air to escape during refilling and to avoid suction phenomena during the evacuation of water, the exhaust air remains a major problem in hydraulics when filling or evacuation, it is this air vacuum associated with the intake flaps and their orientation that allows the optimum filling of the wheel necessary for pressure operation.
• V vacuum
• the blades are assembled at their ends on the circular thin discs (3) via lateral stiffeners bolted to the discs.
• the overall moving volume is cylindrical, which allows the assembly to fit into a single channel, which considerably reduces the external arrangements usually required for medium and low-pressure turbines.
• the geometric dimensions can be very variable: the overall diameter of the wheel, its width, the depth of the blades and the height of water retention are directly related to the parameters of use of the river or water tanks, the heights of falls can be for the lowest of the order of 10m, up to heights of several hundred meters.
• the only limitations of the device are imposed by the constraints of mechanical strength and manufacturing precision of the different materials used. In the example represented by FIGS. 1 to 3:
• the depth of the blades is 100cm - the width taken as an example is 200cm
• the speed of the wheel will be of the order of 3m / sec at the periphery (0.5 rati (2x9.81xH), ie of the order of 14rpm.
• the flow rate will be of the order of 4.5m3 / sec.
• the power produced at the output of the generator will be of the order of (4, 5m3 / sec) x (2m) x (7) is of the order of 6OkW - which is very important for a congestion of this order and comparable turbine performance.
• INVENTIVITY Paddle wheels have existed for thousands of years, in the 19th century many studies have been made to perfect them: the wheels Poncelet - Sagebien - Zuppinger all are slow speed wheels because all face the problem of admission a vein of water in a rotating structure and overflow of water inside the wheel - in recent years concepts of pressure wheels have emerged but all have remained confronted with the same problem that prevents them in fact a 100% filling.
• the inventiveness is essentially constituted by the admission of water into the rotating structure of a paddle wheel by means of adjustable flaps, filling solution which has never been envisaged to date, this solution, by the flow rates important that it allows, replace the impeller in the techniques of efficient hydropower generation with all its advantages of simplicity and ecological found over hundreds of years.
• the assembly of the whole can be perfectly done on the sites themselves.
• the dimensions of the assemblies can be studied and realized with standard components which in combination can respond to multiple variations of energy production, which will lead to industrialization of the system and good cost control.
• This device is perfectly suited to low-cost development, in the context of sustainable and ecological energies and the simplicity of the design opens the uncomplicated execution to the developing countries.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Hydraulic Turbines (AREA)
• Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
• Turbine Rotor Nozzle Sealing (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=41692967

Family Applications (1)

Country Status (6)

Families Citing this family (5)

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• 2009
  • 2009-05-12 FR FR0902282A patent/FR2945585A1/fr not_active Withdrawn
• 2010
  • 2010-05-11 CN CN2010800316610A patent/CN102575636A/zh active Pending
  • 2010-05-11 EP EP10727006A patent/EP2478213A2/fr not_active Withdrawn
  • 2010-05-11 EA EA201171380A patent/EA201171380A1/ru unknown
  • 2010-05-11 MA MA34446A patent/MA33359B1/fr unknown
  • 2010-05-11 WO PCT/FR2010/000372 patent/WO2010130901A2/fr active Application Filing

Non-Patent Citations (1)

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