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
  • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
  • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
  • F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
  • F03B13/264—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the horizontal flow of water resulting from tide movement
• • 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
• • 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 a device which uses the potential and kinetic energy of the water of streams or tides to transform it into electricity.
• All kinds of impellers have emerged, say from above, side, bottom ect ... the most perfected was the Sagebien valve wheel invented in the 19th century, their use was then considerably reduced. able to mobilize the potential energy of the heights of water.
• New wheels have appeared which form a water barrier by themselves, by their axis consisting of a rotating cylinder, but the penetration of the blades into the water due to their connection with the cylinder causes stresses harmful to the flow and geometry of the assembly, these wheels allow water to pass when stationary.
• the present turbine operates from a new type of impeller called impeller barrier wheel which allows for the first time the integration of a fixed dam in the wheel and thus the mobilization, in addition to the kinetic energy of the traditional paddlewheels, of the full potential of the water level by imposing no constraint on the natural flow, the only losses are the losses of flow rates of the leaks linked to the precision of the manufacturing reduced in this case to the minimum at the play of the blades in the evacuation and water supply channel.
• the present invention relates to a paddle wheel which uses the potential and dynamic energy of the water of streams or tides to transform it into mechanical energy which can be transformed into electricity, it consists of: rotating mobile part called rotor (1) constituted by blades (2) rotating around a horizontal axis (6), and assembled at their ends by circular discs (3) and (5)
• the innovation consists of the cylindrical crown shape of the movable part (1), which makes it possible, in the volume left free by its movement, to produce the water retaining element (4), the channel inlet (15) is dimensioned and is an integral part of the device, the whole allows, due to the natural flow of water without constraints, the highest yields for low heights of water reservoirs, is used in the part downstream upstream A towards B the kinetic energy of the water, and during the transition C from the upstream pressure to the downstream pressure, the potential energy of the water level.
• the device according to Figure 1 comprises a rotating part (1) consisting of a set of blades (2) brought to one of their ends by an external disc (5) the example comprises 24 blades, but their number may vary depending on the diameter of the wheel and its length, arrangement linked to the flow rates and to the heights of water to be treated and it is this assembly (1) which is mobile around the axis (6), the trajectory (7) of the blades (2) uses only a small external volume and thus leaves perfectly free the internal volume in which is implanted the fixed part (4) which acts as a water retaining dam.
• Intermediate support discs (5) may be necessary depending on the bearing surfaces of the blades, these crown discs (5) are hollowed out in their central part and have no axis, a solid disc at the other end of the blades transmits the energy at the axis of rotation, thus the volume of rotary displacement is limited to the only outer envelope of a cylinder of a thickness directly resulting from the only volumetric size of the blades in space and of the full disc.
• the outer disc (5) is movable on the fixed cylindrical part (8) which serves as a guide and rolling path, the contact is ensured by rollers (9) in variable number depending on the diameters and the forces to be transmitted.
• the blades (2) have a hydrodynamic shape in order, on the one hand to give a sufficient stiffness to their mechanical strength and on the other hand because of their inclination which can be very variable, to allow them during their penetration and their displacement in the water up to the inlet (15) to limit the negative effects of this penetration.
• the position of the axis (6) located in the water retention dam allows a position of entry of the blades into the water with the minimum of resistance and as soon as they enter the water, allows their drive by the current d water created by the machine in the channel (15).
• the volume not mobilized by the circular movement of the rotor (1) blade support (2) allows to integrate the fixed part (4) which forms the fixed dam retaining water leaving only in the lower part the passage for the blades.
• This dam itself constitutes, by its low geometric shape, the water outlet channel adapted to the flow rates of each structure.
• the whole is linked to vertical concrete walls (14) which act as lateral land restraint.
• this multiplier in this example consists of a toothed wheel large diameter (10) with internal teeth and a small pinion (13) which transmits energy to the generator by a belt itself multiplier.
• the multiplier (10) is associated with a disc brake (11) which allows the commissioning and the programmed and progressive stop of the wheel - when the wheel is stopped, the water (except leaks) does not pass anymore - the device thus allows the use of tidal energy in both directions of ebb and flow.
• the blades supporting the blades can have a serrated external shape, the blades being above the support they use the entire width d water available.
• blades are equipped with valves C1 and C2 actuated by systems of tilting rods and cams, in order to act as a fish elevator (in the event of impossibility of installation of the scales required by the corresponding regulations ).
• the fish always gather towards the water outlets when the outlet speeds allow it, which is the case in this device, in the blade position P10 the valve Cl opens opening acting as a bucket with the blade.
• a second valve C2 closes the top of the dildo, and in the re-entry position in the water (position P4) the two valves return to their original position, releasing the fish into the water of the dam. which allows them to continue their journey upstream.
• Figure 4 gives different types of inclination of curved blades, the calculations will establish the most efficient profiles and inclinations.
• the rotating cylinder (1) is made up of several sections, in this example there are two, these sections can be mechanically isolated from each other, one of the sections being able to stop while the others are turning, reducing d '' as much the flow passing, the water being stopped when stopped, or else the sections combine their efforts by means of a conventional clutch-declutch system (for example by magnetic keys) installed on the crowns (5 ') contiguous, to each crown (5 ') is then associated a support (8) and rollers (9) as for the crowns (5).
• a conventional clutch-declutch system for example by magnetic keys
• FIG. 6 represents a blade in cross section, the different shapes of which are obtained by a fixed part (17) and by articulated mobile parts (18) (19) called valves. These blades are assembled on the circular crown (5) of tabular shape and of rectangular section in order to accommodate the control systems, hydraulic micro-cylinders or electric motors. These valves rotate around an axis of rotation (20)
• the external valve (18) is articulated so as to follow the external shape of the courier which is also the external form of the crown (5)
• the internal valve (19) is articulated so as to match the internal form of the courier inner shape of the crown (5)
• valves are guided and positioned at their other end by means of grooves (21) recessed in the crown (5) supporting the blades.
• Figure 7 shows blades with movable parts which allow the variation of flow rates, in this figure it is a wheel with 16 blades, either 16 intervals between two blades, or for a complete revolution of the wheel, 16 volumes between two blades.
• This figure represents a quarter of the wheel, in section on the blades, in one case where one volume out of two can be concealed or not, the blades are then successively fitted with either the external valve (18) or the internal valve ( 19).
• the figure shows:
• position E This is how, in position E, the volume between two blades can no longer fill with water.
• the isolation of a volume in this example, will reduce the flow rate by 1/16 th of its value, the flow rate can thus be reduced progressively by 1/16 th until a reduction of 8/16 th is half the nominal impeller flow.
• the flow rate can be lowered, progressively by 1/16 th, and by fitting all of the blades according to FIG. 6, this flow rate could be progressively reduced, if necessary, by 1 / l ⁇ th up to when the wheel comes to a complete stop.
• FIG. 8 represents a front view of a wheel of 16 blades in which these blades have a V shape, in this example each blade is in a plane, but these blades can also be inscribed in curved surfaces as in the figure 4, in the case of this figure, at standstill the water is not blocked, the assembly works by favoring dynamic and kinetic effects and the speed of rotation will be higher, the calculations will determine the performance of this solution which is similar to turbines with a vertical axis but remaining in completely different speed ranges, the speed of rotation of the turbine remains directly linked to the speed of water circulation.
• the blades are maintained if necessary at three points: two discs (5) and a disc (3) as in Figure 5.
• the overall diameter of the wheel due to the position of the axle and the requirements for water penetration of the blades is of the order of 1.5 times the height of fall increased by twice the height of the water outlet channel (which is the height of the blades), this last height is a direct function of the flow rate selected.
• the action on the blades in the channel benefits from a very large lever arm due to the diameter of the wheel, which allows it to be started up with the minimum of energy and a reduced speed.
• the geometric dimensions can be very variable: the overall diameter of the wheel, its width, the height and shape of the blades and the height of the water retention are directly linked to the parameters of use of the river or reservoirs d 'water, the heights of falls can be very low (of the order of lm which is an economic limit for the use provided by this device) up to heights of 4 m or more.
• the only limitations of the device are imposed by the constraints of mechanical strength and precision of the different materials used.
• the height H of the water reservoir is 2 m - the height of the blades is 60 cm
• the general manufacture of the elements, including that of the blades, because of their shape, is very simple and economical.
• the assembly of the assembly can perfectly be carried out on the sites themselves.
• the total height of the assembly as well as the energy produced are a function of the two parameters constituted by the two different elements assembled: the central fixed disc (water height) (4-8) and the blades (flows) (2) , it is thus possible by combination of these two elements which can each meet a manufacturing standard to respond by a standard set (combination of two standards) to multiple variations in energy production, which can lead to industrialization of the system and perfect control of costs, as for the other components of the set: multiplier - generator.
• the design overcomes the heavy constraints of hydroelectric facilities. It allows simple and rapid installation, after earthwork, in a few pre-assembled parts of the hydrogenerator thus formed and with well-defined and guaranteed characteristics; which opens up a completely new field of equipment with the use of the lowest speeds and unevennesses currently little used, this for reduced equipment and operating costs.
• This device is perfectly suited to the development of low-cost microeconomics, within the framework of ecological and sustainable energy.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Oceanography (AREA)
• Hydraulic Turbines (AREA)
• Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Priority Applications (7)

Applications Claiming Priority (6)

Publications (1)

Family

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Family Applications (1)

Country Status (9)

Cited By (7)

Families Citing this family (8)

Citations (4)

Family Cites Families (4)

• 2003
  • 2003-02-19 EA EA200500874A patent/EA008133B1/ru unknown
  • 2003-02-19 WO PCT/FR2003/000543 patent/WO2004048773A1/fr active Application Filing
  • 2003-02-19 OA OA1200500155A patent/OA13205A/fr unknown
  • 2003-02-19 EP EP03720625A patent/EP1567767A1/fr not_active Withdrawn
  • 2003-02-19 BR BR0316445-4A patent/BR0316445A/pt not_active IP Right Cessation
  • 2003-02-19 CA CA002506553A patent/CA2506553A1/fr not_active Abandoned
  • 2003-02-19 AU AU2003224205A patent/AU2003224205A1/en not_active Abandoned
  • 2003-02-19 US US10/535,359 patent/US20050286975A1/en not_active Abandoned
  • 2003-02-19 JP JP2005510248A patent/JP2006507448A/ja not_active Ceased

Patent Citations (4)

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