• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device for generating energy using the flow of a river (2) or the like, the device (1) comprising a paddle wheel (11) and comprising at least one generator set (15) whose drive shaft (18a) is coupled to the shaft (12) of the impeller (11), characterized in that the device (1) is provided with an at least partially submerged housing (3) with an open bottom (4) located at a height (A) above the bottom (5) of the river (2) or the like is located and in which the paddle wheel (11) is arranged freely rotatably with paddles (14) projecting under the open bottom (4). Figure 1
    公开号:BE1021094B1
    申请号:E2013/0471
    申请日:2013-07-05
    公开日:2016-01-12
    发明作者:
    申请人:VAN ROMPAY BOUDEWIJN GABRIëL；Van Rompay, Boudewijn Gabriel；
    IPC主号:
    专利说明:

    Device for generating hydroelectric energy.
    The present invention relates to a device for generating hydroelectric energy.
    More specifically, the invention is intended for generating hydroelectric energy using the flow of a river, estuary or the like.
    Devices that use the flow of water for generating energy are already known. A practical example of such a device is a hydroelectric power station.
    Such a hydroelectric power station requires the construction of reservoirs in rivers with the help of one or more dams.
    The location of these reservoirs must be carefully selected and not all rivers are suitable for this.
    Moreover, these reservoirs can have adverse consequences for nature, because the natural habitat of animals and plants is disturbed.
    These reservoirs entail a large loss of land area, as a result of which often entire villages or towns have to be relocated and these reservoirs can potentially be a danger in the event of the dams failing.
    Moreover, the hydroelectric power station and the dams are large and complex constructions, making the construction of such installations an expensive, long and complicated affair.
    In addition, such a hydroelectric power station is an obstacle to water traffic.
    The turbines that are used are also partially submerged in water, which means that the turbines and the generators connected to them must be carefully sealed, which complicates maintenance or repairs.
    A kind of underwater turbine is also known in which a screw, rotor or the like is placed under water which will start to rotate due to the flow of the water and in this way can generate electric current.
    Such known installations also have the disadvantage that turbines and the generators connected thereto must be carefully sealed to prevent the adverse effects of exposure to the water.
    This makes the installation not only expensive, but also difficult to maintain.
    Moreover, the rotating blades of the propeller, rotor or the like pose a danger to marine life.
    The present invention has for its object to provide a solution to at least one of the aforementioned and other disadvantages.
    To this end the invention relates to a device for generating hydroelectric energy using the flow of a river, estuary or the like, which device comprises a paddle wheel which is freely rotatable in two directions about an axis and contains at least one electric generator group of which the drive shaft is coupled in a torque-transmitting manner to the blade wheel axis, characterized in that the device is provided with a housing which is completely or at least partially submerged in the form of an open-bottomed bell located at a height above the bottom of the river, estuary or the like where the internal space is placed under pressure to control or safeguard the height of the water level in the clock and in which the impeller is rotatably mounted with blades protruding below the open bottom.
    An advantage is that the device is less subject to maritime conditions, such as waves or extreme weather conditions.
    Moreover, the generator group can be placed completely above the water level in the clock.
    This has the advantage that these parts of the device are not exposed to the water, so that their construction and in particular their seal will have to meet less stringent requirements. Maintenance of the device will also be easier and cheaper.
    Moreover, most of the rotating blades are hidden under the clock, which means there is little or no danger to marine life.
    Moreover, the device is hidden from view, so there is no disturbance to the natural view of the river, estuary or the like.
    In addition, a device according to the invention is less inconvenient for water traffic or can even be provided at a depth such that ships can sail over it and are therefore not affected at all.
    The device is preferably provided with means for increasing the flow of the river, the estuary or the like under the open bottom of the clock at the level of the paddle wheel.
    This will ensure that the device can extract hydroelectric energy from the water flow as optimally as possible.
    According to a preferred feature of the invention, the paddle wheel is self-floating and the axis of the paddle wheel is above the level of the water level in the clock.
    When the shaft of the paddle wheel is above water, this has the advantage that this shaft does not have to be provided with special seals.
    Due to its self-floating character, the impeller will not exert any force on its shaft or on the generator shaft drive shaft due to its weight.
    This has the advantage that the energy transfer will be accompanied by considerably fewer losses.
    In a preferred embodiment, the paddle wheel is provided with a number of paddles, at least one of which constantly protrudes into the water during use.
    In this way, the paddle wheel can be set in motion by the water, without it being necessary to also place the axis of the paddle wheel under water.
    This offers the advantage that the device is very simple, which makes its construction inexpensive. There are no other moving parts that are submerged in water other than the paddles of the paddle wheel, so that no extra attention is needed for seals and other measures to prevent the harmful effects of the water.
    These blades can be mounted on a cylindrical portion of the shaft, which is made of a floating material.
    Alternatively, the cylindrical portion of the shaft can be hollow and filled with a gas or other floating material. This gas can for example be air.
    The generator group or groups are preferably arranged on the housing.
    This has the advantage that the weight of the generator group or groups is supported by the housing and, for example, not by the axis of the impeller.
    It is preferably ensured that the buoyancy of the paddle wheel and the location of the generator group or groups are such that, when the paddle wheel floats freely on the water level in the housing, the height of the blade wheel axis corresponds to the height of the paddle wheel. the drive shaft of the generator group or groups.
    An advantage hereof is that the weight of the paddle wheel is completely lifted by the upward force, as a result of which the coupling between the paddle wheel and the drive shaft of the generator group are completely unloaded in the vertical direction. As a result, there is less energy loss due to frictions and therefore more useful electrical energy remains available for conversion into electrical current. Moreover, the device is subjected to fewer forces, so that the device can be built lighter.
    Preferably, at least one generator group is a direct current generator group.
    Preferably, a generator group is also provided on either side of the blade wheel.
    According to a preferred embodiment, the generator group includes a transmission between the generator and the blade wheel axis and the transmission includes a mechanism for reversing the direction of rotation of the generator shaft with respect to the blade wheel to ensure that the generator is always in the same direction of rotation is driven regardless of the direction of rotation of the paddle wheel.
    In a preferred embodiment, all parts of the device that come into contact with water are treated with a non-toxic coating based on a surface-treated composite coating, genre Ecospeed®.
    Such a coating will ensure that growth of mucus, algae and the like occurring at the aforementioned parts can easily be removed.
    Moreover, such a coating offers a very good protection against corrosion, so that the metal parts can be made thinner because no account has to be taken of possible corrosion damage.
    The invention also relates to a series of devices according to the invention in which they are placed in a tidal river or estuary at a distance from one another in the direction of flow of the tidal river or the estuary and are spread over such a distance from the tidal river or the estuary that at least one device is in a flow zone.
    With the insight to better demonstrate the characteristics of the invention, a few preferred embodiments of an apparatus for generating hydroelectric energy using the flow of a river, estuary or the like are described below as an example without any limiting character. according to the invention, with reference to the accompanying drawings, in which:
    Figure 1 schematically represents a preferred embodiment of a device according to the invention for generating hydroelectric energy, the device being arranged in a tidal river; figure 2 schematically represents a cross-section according to the line II-II 'in figure 1; figure 3 schematically represents a cross-section according to the line III-III 'in figure 1; figure 4 schematically represents an alternative embodiment of figure 3; figure 5 schematically represents an alternative embodiment of the part indicated by F5 in figure 3; figure 6 schematically represents an alternative embodiment of a device according to the invention; figure 7 represents a top view of a river in which a series of devices according to figure 1 is arranged; Figure 8 schematically represents yet another alternative embodiment of a device according to the invention; Figure 9 schematically represents an alternative embodiment of Figure 8; figure 10 schematically represents yet another alternative embodiment of the device according to the invention; figure 11 schematically represents the cross-section according to line XI-XI 'in figure 10; figure 12 represents a cross-section of a river in which a series of devices according to figure 1 is arranged to form a wall of devices; Figure 13 schematically represents yet another alternative embodiment of a device according to the invention; figure 14 schematically represents a variant of the embodiment of figure 13; figure 15 schematically represents yet another alternative embodiment of a device according to the invention; figure 16 schematically represents a section according to the line XVI-XVI in figure 15; figure 17 schematically represents a variant of the embodiment of figure 15.
    Figures 1, 2 and 3 schematically show a device 1 according to the invention which is placed in a tidal river 2.
    The device 1 consists of a submerged housing 3 in the form of a clock 3 with an open bottom 4.
    The open bottom 4 is at a distance A from the bottom 5 of the tidal river 2.
    The housing 3 is provided with means for placing the internal space 8 of the housing 3 under pressure, in this case the means consist of a compressed air installation 6, the output 7 of which is connected to the internal space 8.
    The internal space 8 is partly filled with the compressed air and partly filled with water.
    Four posts 9, which are connected to the housing 3 and are anchored in the bottom 5 of the tidal river 2, ensure that the device 1 on site and with its open bottom 4 at the appropriate height A above the bottom 5 of the tidal river 2 is being held.
    It is clear that more or fewer than four posts 9 can also be provided.
    In the housing 3 there is a paddle wheel 10. The shaft 11 of the paddle wheel 10 is made of a floating material, the paddle wheel 10 thereby floats on the water. The axis 11 of the blade wheel 10 is freely rotatable about a geometric axis X-X '.
    A number of radially directed flat blades 13 are arranged on the axis 11 of the paddle wheel 11, which blades extend parallel to the axis 11 of the paddle wheel 10 in the longitudinal direction.
    The paddle wheel 10 is designed such that the buoyancy of the paddle wheel 10 is sufficient to hold the axis 11 of the paddle wheel 10 above the water level 12 in the clock 3 and to ensure that at least partially one of the aforementioned paddles 13 is continuously the water is sticking out. The blades 13 protrude at least partially under the open bottom 4.
    The device is furthermore also provided with two generator groups 14, one of which is placed on each side of the impeller.
    Each generator group 14 consists of a transmission 15 and a generator 16 connected thereto. The transmission 15 is provided with an input drive shaft 17a which is coupled to the shaft 11 of the impeller 10 and with an output shaft 17b which is coupled to the shaft 18 of the generator 16.
    The generator groups 14 are preferably mounted on the inside 8 of the clock 3. The floating power of the paddle wheel 10 and the location of the generator groups 14 are such that when the paddle wheel 10 floats freely on the water level 12 in the housing 3, the height of the shaft 11 of the impeller 10 corresponds to the height of the drive shaft 17a of the generator groups 14.
    In this case, the drive shaft 17a of one of the two generator groups 14 rotates in a first direction of rotation with the axis 11 of the paddle wheel 10 and the drive shaft 17a is freely rotatable in the other second direction of rotation while the drive shaft 17a of the second generator group 14 is in the the first direction of rotation is freely rotatable and rotates in the second direction of rotation with the axis 11 of the paddle wheel 10.
    To this end, the generator group 14 comprises a freewheel 19 which allows a free rotation of the drive shaft 17a of the generator group 14 relative to the axis 11 of the paddle wheel 10 in one direction and forms a rotatable coupling between the generator group 14 and the paddle wheel 10 in the other direction of rotation.
    The generator group 14 is in this case a direct current generator group 14 which is connected by means of an electric cable 20 to an inverter 21 on the quay 22 which converts the supplied direct current into alternating current that can be supplied via a cable 23 to the electricity network 24.
    It is not excluded that the inverter 21 is located in the housing 3 instead of on the quay 22.
    In this case, all parts of the device 1 that come into contact with water are provided with a non-toxic coating based on a surface-treated composite coating.
    Due to the nature of the coating, fouling such as algae, mucus and smallpox will be easy to remove.
    Moreover, the treated parts will not suffer any adverse effects from corrosion because such a coating has excellent anti-corrosion properties.
    The operation of the device 1 is very simple and as follows.
    When the device is arranged in a tidal river 2 as shown in figures 1, 2 and 3, the flow of the water will cause the paddle wheel 10 to rotate.
    It is known that tidal rivers 2 flow to the sea during certain periods and flow away from the sea in the opposite direction during other periods. This means that during certain periods the impeller 10 will be driven in one direction of rotation around the axis X-X 'and in other periods in the reverse direction of rotation.
    In the case of figures 1, 2 and 3, the water flows in the direction of arrow B, whereby the impeller is driven in the direction of rotation of arrow C. In this case, the operation of the freewheel 19 will cause the generator group 14 on the left in figures 1. and 2 are driven by the impeller 10, while the generator group 14 on the right in Figures 1 and 2 will not be driven. In this case, therefore, the left-hand generator group 14 will generate power which, after being converted into the inverter 21, will be supplied to the electricity grid 24.
    The transmission 15 is designed such that the speed of the impeller 10 with a certain transmission ratio is transmitted to the generator 16 to drive the generator 16 at a suitable and preferably constant speed for generating electric current.
    When the tide reverses, the flow direction will reverse in a direction opposite to that of the arrow B, whereby the impeller 10 will also be driven in the opposite direction of rotation of the arrow C. In this case it will be the right-hand generator group 14 that is driven by the paddle wheel 10 and the left-hand generator group 14 will be able to rotate freely with respect to the paddle wheel 10 due to the action of the free wheel 19 and therefore not be driven thereby. Thus, in this case, the current will be generated by the right-hand generator group 14, while the left-hand generator group will not generate any current.
    It is therefore clear that, whatever the direction B of the flow, electricity is always supplied by one of the two generator groups 14, whereby electricity is supplied to the electricity network 24 in a continuous manner.
    To control the water level 12 in the clock 3, use is made of a compressed air installation 6 which allows to bring more or less compressed air into the clock 3. As a result, the height D of the water level 12 in the clock 3 can be controlled, whereby it can be ensured that the generator groups 14 and other components of the device do not end up under the water level 12.
    It will also be ensured that the height D of the water level 12 is always greater than the height A of the open bottom 4 of the clock 3.
    The alternative embodiment shown in Figure 4 differs from the previous embodiment in that two funnels 25 are provided on the open bottom 4 in order to locally increase the flow.
    If desired, only one funnel 25 can also be provided, for example if the river is not a tidal river 2.
    The operation of this device 1 is analogous to the device 1 of figures 1, 2 and 3, wherein the water will flow underneath the housing 3 and will be guided via the funnels 25 to the paddle wheel 10 and drives the paddle wheel 10.
    It is clear that these funnels 25 can also be integrated in or on the housing 3 or the posts 9.
    Figure 5 shows an alternative embodiment of the blade wheel 10 in Figure 3, in which in this case the blades 13 are not flat but in which the blades 13 are rotatable at their base by means of a hinge mechanism 26a with which the blades are mounted on the axis 11 of the blade. impeller 10 are attached. Furthermore, an adjusting mechanism is provided which is not shown in the figure and which permits blocking the angle of rotation E of the blades 13 relative to the radial direction Y-Y 'in a certain rotated position.
    The hinge mechanism 26a allows rotation about a geometric axis X-X 'that extends parallel to the axis 11 of the paddle wheel 10.
    In addition, but not necessarily, in this alternative embodiment of Figure 5, the vanes 13 are segmented with in this case two segments 27 rotatable relative to each other by means of a hinge mechanism 26b about a geometric axis XX 'parallel to the axis 11 of the impeller 10. An adjusting mechanism (not shown in the figure) is provided for blocking the angle F between the segments 27 in a specified position.
    In this way the position of the vanes 13 and the geometry of the vanes 13 can be adapted to the given conditions of the local flow so as to be able to optimize the efficiency of the device 1. It is clear that more than two segments 27 are also possible.
    The alternative embodiment shown in Figure 6 differs from the previous embodiments as shown in Figures 1 to 3 in that it is provided with two anchor chains 28 instead of four posts 9. These are connected to the housing 3 and are in the bottom 5 of the tidal river 2 anchored. They ensure that the device 1 is kept on site and with the open bottom 4 at the appropriate height A above the bottom 5 of the tidal river 2.
    The operation is further analogous to the operation of the previously described embodiment.
    It is clear that only one or more than two anchor chains 28 can also be provided.
    Preferably, a series of aforementioned devices 1 according to the invention are spread over a distance from the tidal river 2, as shown in Figure 7.
    When the tide changes, there will always be a zone 29 as shown in figure 7, within which the flow falls away, so that the device 1 located in this zone 29 is temporarily out of use for, for example, twenty minutes.
    However, it is known that this zone 29 is local and moves along the river 2 so that in the case of Figure 7 there will always be devices 1 that are outside the zone 29 of stagnant water and are therefore driven by the flow, at least for provided that the distance between the devices 1 is chosen to be sufficiently large.
    A continuous power supply is thus ensured since a few devices 1 are always in operation, while only a limited number will be temporarily out of operation when they are in the zone 29.
    The embodiment as shown in figure 8 is provided with several paddle wheels 10 in the housing 3, in this case three. Each paddle wheel 10 is herein provided with two generator groups 14, one on each side of the respective paddle wheel 10.
    The different paddle wheels 10 are arranged with their axes 11 parallel to each other and with respect to the direction of flow.
    Each paddle wheel 10 will be set in motion by the flow of water from the river 2, analogously as described for the first embodiment. As a result, several generator groups 14 per device 1 will simultaneously generate electrical energy, which will increase the total power per device 1.
    It is clear that also for this embodiment several devices 1 can be placed one behind the other in a tidal river 2.
    It is furthermore also clear that only two or more than three blade wheels 10 can be arranged in the housing 3.
    If desired, it is possible to choose to place a number of, in this case four, paddle wheels 10 in the housing 3, one behind the other, as shown in Figure 9.
    Hereby alternately the left or right generator group 14 is placed on a platform 30 on the inside of the housing 3 instead of attaching this generator group 14 to the housing 3 itself.
    As a result of the use of these platforms 30, the paddle wheels 10 come to lie one behind the other in a staggered manner instead of in line straight behind each other.
    The operation is further analogous to the device 1 as shown in Figure 8.
    Obviously, it is not excluded to place more or fewer than four paddle wheels 10 in the housing 3 in this manner.
    Figures 10 and 11 show an alternative embodiment of the device 1 according to the invention, in which case the housing 3 is integrated in the quay 22, more particularly against the quay wall 31.
    In this case, the posts 9 are partially integrated in the quay 22, wherein these posts 9 are anchored in the bottom 5 of the river 2 to hold the housing 3 in place against the quay wall 31.
    Furthermore, a large block 32 is provided on the housing 3, for example made of concrete.
    The concrete block 32 will in this case provide the necessary counterweight to keep the housing 3 under water against the upward force of the water.
    In this case the compressed air installation 6 is provided on this concrete block 32, which places the internal space 8 under pressure.
    Above the block 32, below the quay 22, there is a space 33 where a lock 34 is provided which gives access to the internal space 8 in which the impeller 10 with generator groups 14 is located.
    With the help of this lock 34 and passage 35, persons responsible for the maintenance and / or repairs of the device can easily reach the internal space 8.
    In this case, the inverter 21 is also provided in the housing 3, instead of on the quay 22.
    Furthermore, the device 1 is also provided with funnels 25, which in this case are asymmetrical, since the proximity of the quay wall 31 does not allow a symmetrical design and which ensure that the water flow is guided along the blades of the paddle wheel 10.
    The operation of the device 1 is analogous to the first described embodiment.
    It is clear that an access tube 35 is provided between the lock 34 and the housing 3 to bridge the distance between the space 8 and an entrance above the water level.
    In the other embodiments already described, use can also be made of a lock 34 and a vertical access tube 35 to reach the inner space 8.
    It is further also clear that the other described embodiments can also be provided with a concrete block 32, for instance placed on top of the housing 3, to ensure that the device 1 remains under water.
    It is furthermore also clear that in the other described embodiments the inverter 21 can also be placed in the housing 3.
    Figure 12 shows how a series of devices 1 as shown in Figure 1 can be placed on and next to each other in a tidal river 2 to form a wall 36.
    The wall 36 extends perpendicularly to the direction of flow B of the tidal river 2.
    In this case, the devices 1 are arranged in a frothed manner, with a clearance 37 provided above and below and to the left and right of each device 1 to allow the flow to pass. The housings 3 are attached to each other in the appropriate manner.
    Furthermore, the wall 36 can extend both over the entire width and over a part of the width of the river 2.
    Provided in the quay 22 is a service access 38 which is connected to different service corridors 39 which are located between the rows 40 of devices of the wall 36.
    This service access 38 and service corridors 39 allow maintenance and repairs to be carried out in a simple manner since the devices 1 are easy to reach.
    The service corridors 39 are provided with an access axis that allow access to the spaces 8, the spaces 8 being constantly separated from the outside air.
    The operation of the devices 1 is analogous to the operation described above.
    In this case, the energy generated from all devices 1 is jointly transmitted via one cable 20 to the inverter 21 on the quay 22. This can be realized by connecting the generator groups 14 to each other in the appropriate manner.
    If desired, the devices 1 can be provided with a funnel 25, the inverter 21 can be provided in the wall 36, and / or a concrete block can be provided on top of the wall 36 to ensure that the wall 36 of devices 1 remains under water .
    It is clear that several of these walls 36 of devices 1 can be placed one behind the other in a tidal river 2 at an appropriate distance from each other.
    Figure 13 shows yet another alternative embodiment, Figure 14 showing a variant thereof.
    In figure 13, a device 1 is mounted or built into a floating or floating structure 41 which floats on the water level of the river 2. In this case the housing 3 is only partially submerged in this case.
    This structure 41 can for instance be an old, discarded ship, a pontoon or the like and will ensure that the open bottom 4 of the housing 3 is kept at a distance from the bottom 5 of the river 2.
    This structure can also be a new ship or pontoon, which can be built lightly and cheaply.
    Furthermore, two accelerators 42 are also provided on the underside of the floating structure 41 against the housing 3. These ensure local acceleration of the water at the vanes 13.
    The accelerators 42 are in this case designed as plates which together with the bottom 5 of the river 2 form a narrowing which first narrows and then broadens in the direction of the flow B.
    The device 1 is preferably provided with a compressed air installation 6 which keeps the space 8 in the device 1 under low overpressure which is controlled such that the water level 12 in the housing 3 approximately corresponds to the open bottom 4 of the housing 3.
    Additionally, the paddle wheel 10 is a floating paddle wheel 10 projecting with its paddles 13 below the housing 3 to capture the flow and convert it into mechanical or electrical energy.
    The operation is analogous to the embodiments described above.
    Such an embodiment makes it possible to recover old ships, moreover it is possible to build very lightly and cheaply.
    In addition, when an old or new ship is used as the floating structure 41, it will be possible to arrange multiple devices 1 in the ship and, therefore, more energy can be generated. This is represented in Figure 14 which shows the most preferred embodiment of the invention and which in summary contains a series of devices 1 in succession in the flow, each device including a paddle wheel 10 floatingly arranged in a space open to the bottom and which is kept under pressure for the control of the water level 12 and which are provided with accelerators 42 in order to be able to subject the blades 13 of the blade wheel 10 to a maximum flow rate.
    Figure 15 shows yet another alternative embodiment, similar to the embodiment of Figure 13, in which case the shaft 11 of the paddle wheel 10 extends through the housing 3 and wherein the drive shaft 17a of the electric generator groups 14 is coupled to the shaft 11 of the impeller 10 by means of a gear transmission 43 with a gearwheel 44 on the shaft 11 of the impeller 10 and a gearwheel 45 cooperating with it on the drive shaft 17a of the generator groups.
    Both the gear 44 and the generator groups 14 are located outside the inner space 8 of the housing 3, in this case in the floating structure 41.
    The gear 45 on the drive shaft 17a cooperates with the gear 44 to transfer the movement of the shaft 11 from the paddle wheel 10 to the generator group 14.
    The generator group 14 is in this case provided with a generator 16, the input drive shaft 17a also serving as the shaft 18 of the generator 16.
    The transmission 15 in this case is formed by the gear wheel transmission 43, whereby, by choosing the diameter of the gear wheel 44 at least ten times greater than the diameter of the gear wheel 45, the speed of the impeller 10 with a suitable transmission ratio to the generator group 14 can be transmitted to drive the generator 16 at an appropriate speed. The diameter of the gear wheel 44 is preferably a large number of times larger than the diameter of the gear wheel 45 of the generator groups 14.
    In this case the diameters of the gear wheels 44, 45 are chosen such that the diameter of the gear wheel 44 of the impeller 10 is ten times larger than the diameter of the gear wheel 45 of the generator groups 14.
    Figure 16 shows diagrammatically how the different generator groups 14 are placed in the floating structure 41 relative to the gear 44.
    In the example shown, four generator groups 14 are placed on either side of the impeller 10, which in this case are arranged in the floating structure 41.
    The floating power of the impeller 10 is such that when the impeller 10 floats freely on the water level 12 in the housing 3, the height of the shaft 11 of the impeller 10 is such that the pitch circles of the gear wheels 45 of the generator group or groups 14 are tangent or substantially tangent to the pitch circle of the gear wheel 44 of the impeller 10.
    This has the advantage that the weight of the paddle wheel 10 and the generator groups 14 is completely lifted by the driving force, so that the coupling between the paddle wheel 10 and the drive shaft 17a of the generator groups 14 is completely or substantially unloaded in the vertical direction. As a result, there is less energy loss due to frictions and therefore more useful electrical energy remains available for conversion into electrical current.
    The operation of the device 1 as shown in Figure 15 is analogous to the operation of the device 1 as shown in Figure 13.
    It is clear that also in this embodiment the floating structure 41 can take the form of a ship or the like.
    It is clear that if desired, the gear transmission 43 and / or the generator groups 14 can also be located in the inner space 8 of the housing 3.
    A possible embodiment of this is shown in figure 17, which shows a variant of figure 15. The gear wheel 44 is hereby placed in the middle or approximately in the middle of the axis 11 of the impeller 10.
    The gear wheel transmission 43 is located in the inner space 8 of the housing 3, the input drive shaft 17a of the generator group 14 extending through the housing.
    An advantage of such an embodiment is that the gear wheel 44 can be made larger since the dimensions of the floating structure 41 in which it is located do not have to be taken into account. Moreover, the shaft 11 of the paddle wheel 10 does not extend through the housing 3, so that no special seals have to be provided on the shaft 11.
    For the rest, the operation is analogous to the embodiment as shown in Figure 15.
    It is clear that the transmission of the movement of the shaft 11 from the paddle wheel 10 to the input drive shaft 17a via a gear transmission 43 can also be applied in all the embodiments described above.
    Due to the floating power of the paddle wheel 10 and the floating power of the floating structure 41, it is also possible to omit the housing 3 and to allow the paddle wheel 10 to float freely at the water level of the tidal river 2, estuary or the like, whereby the impeller 10 with its shaft 11 is mounted on the floating structure 41 in a suitable manner.
    The generator groups 14 are hereby attached to the floating structure 10, so that when the floating structure 41 and the paddle wheel 10 float freely on the water level of the tidal river 2, estuary or the like, the pitch circles of the gear wheels 45 of the generator group or groups 14 touching or nearly touching the pitch circle of the gear 44 of the paddle wheel 10.
    In all described embodiments it is possible that the housing 3 is made of a rigid material or of a flexible material, in which case the compressed air installation 6 will provide the necessary air pressure to shape the housing.
    The present invention is not limited to the embodiments described by way of example and shown in the figures, but a device for generating hydroelectric energy using the flow of a river, estuary or the like according to the invention can come in all shapes and sizes be achieved without departing from the scope of the invention.
    权利要求:
    Claims (32)
    [1]
    Conclusions.
    A device for generating hydroelectric energy using the flow of a river (2), estuary or the like, which device (1) comprises a paddle wheel (10) which is freely rotatable in two directions about an axis XX and comprises at least one electric generator group (14), the drive shaft (17a) of which is coupled to the shaft (12) of the paddle wheel (10), characterized in that the device (1) is provided with a fully or at least partially submerged housing (3) in the form of a bell (3) with open bottom (4) which is at a height (A) above the bottom (5) of the river (2), estuary or the like, whose internal space (8) is pressurized to control or safeguard the height of the water level (12) in the bell (3) and in which the paddle wheel (10) is rotatably mounted with blades (13) protruding below the open bottom (4).
    [2]
    Device - according to claim 1, characterized in that the device (1) is provided with means for controlling the flow of the river (2), the estuary or the like below the open bottom (4) of the clock (3) raise the paddle wheel (10).
    [3]
    Device according to claim 2, characterized in that these means are formed by a funnel (25).
    [4]
    Device according to claim 3, characterized in that when the device (1) is placed in a tidal river (2) or the like, there are two funnels (25), one in each flow direction.
    [5]
    Device according to one of the preceding claims, characterized in that the impeller (10) is self-floating and that the axis (11) of the impeller is above the level of the water level (12) in the clock (3).
    [6]
    Device according to one of the preceding claims, characterized in that the paddle wheel (10) is provided with a number of blades (13), at least one of which constantly protrudes into the water during use.
    [7]
    Device according to claim 6, characterized in that the blades (13) are mounted on a cylindrical portion of the shaft (11) made from a floating material.
    [8]
    Device according to claim 6, characterized in that the blades (13) are arranged on a cylindrical part of the shaft (11) that is hollow and filled with a gas or other floating material.
    [9]
    Device according to claim 6, characterized in that the blades (13) are mounted on a closed hollow cylindrical portion of the shaft (11) that is filled with air.
    [10]
    Device according to one of the preceding claims 6 to 9, characterized in that the blades (13) are flat blades which are implanted radially on the blade wheel (10).
    [11]
    Device according to one of the preceding claims 6 to 10, characterized in that the blades (13) are rotatable at their base relative to the shaft (11) by means of a hinge mechanism (26a) and that an adjusting mechanism is provided that allows the angle of rotation (E) of the blades (13) relative to the radial direction YY 'to be blocked in a certain rotated position.
    [12]
    Device according to claim 11, characterized in that the hinge mechanism (26a) is such that it allows rotation about a geometric axis X-X 'that extends parallel to the axis (11) of the blade wheel (10).
    [13]
    Device according to claim 11, characterized in that the blades are composed of two or more segments (27) which are rotatable relative to each other by means of a hinge mechanism (26b) about a geometric axis parallel to the axis (11) of the paddle wheel (10) and that an adjusting mechanism is provided to be able to block the angle (F) between the segments (27) in a specified position.
    [14]
    Device according to one of the preceding claims, characterized in that the generator group or groups (14) are arranged on the housing (3).
    [15]
    Device according to claim 14, characterized in that the floating power of the paddle wheel (10) and the location of the generator group or groups (14) in the housing (3) are such that when the paddle wheel (10) is free the water level (12) floats in the housing (3), the height of the shaft (11) of the impeller (10) corresponds to the height of the drive shaft (17a) of the generator group or groups (14).
    [16]
    Device according to one of the preceding claims 1 to 14, characterized in that the drive shaft (17a) of the electric generator group or groups (14) is coupled to the shaft (11) of the impeller (10) by means of a gear transmission (43) with a gear (44) on the shaft (11) of the paddle wheel (10) and a co-operating gear (45) on the drive shaft (17a) of the generator group or groups (14).
    [17]
    Device according to claim 16, characterized in that the diameters of the gear wheels (44, 45) are chosen such that the diameter of the gear wheel (44) of the paddle wheel (10) is at least 10 times larger than the diameter of the gear wheel (45) of the generator group or groups (14).
    [18]
    Device according to claim 16 or 17, characterized in that the floating power of the paddle wheel (10) and the location of the generator group or groups (14) in the device are such that when the paddle wheel (10) is free on the water level (12) floats in the housing (3), the height of the shaft (11) of the paddle wheel (10) is such that the pitch circles of the gear wheels (45) of the generator group or groups (14) are touching or nearly touching are at the pitch circle of the gear wheel (44) of the paddle wheel (10).
    [19]
    Device - according to one of the preceding claims, characterized in that the submerged housing (3) is kept in place at a height above the bottom (5) of the river (2), estuary or the like by means of two or more posts ( 9) anchored in the bottom (5) of the river (2), estuary or the like.
    [20]
    Device according to one of the preceding claims 1 to 18, characterized in that the submerged housing (3) is kept in place at a height above the bottom (5) of the river (2), estuary or the like by means of one or more anchor chains (28) anchored in the bottom (5) of the river (2), estuary or the like.
    [21]
    Device according to one of the preceding claims 1 to 18, characterized in that the submerged housing (3) is kept at a height above the bottom (5) of the river (2), estuary or the like by means of a floating or floating structure (41) into which the housing (3) is built.
    [22]
    Device according to claims 2 and 5, characterized in that the submerged housing (3) is kept at a height above the bottom (5) of the river (2), estuary or the like by means of a floating or floating structure (41) ) where the housing (3) is installed.
    [23]
    Device according to claim 21 or 22, characterized in that a plurality of housings (3) are arranged in the above-mentioned structure (41), the paddle wheels (10) with their axes (11) parallel to each other and with respect to the direction of flow behind placed together.
    [24]
    Device according to one of the preceding claims, characterized in that a plurality of paddle wheels (10) are arranged in the housing (3).
    [25]
    Device according to one of the preceding claims, characterized in that at least one generator group (14) is a direct current generator group.
    [26]
    Device according to one of the preceding claims, characterized in that a generator group (14) is provided on either side of the impeller (10).
    [27]
    Device according to claim 26, characterized in that the drive shaft (17a) of at least one generator group (14) rotates in a first direction of rotation with the axis (11) of the paddle wheel (10) and is freely rotatable in the other second direction of rotation and that the drive shaft (17a) of at least one generator group (14) is freely rotatable in the first direction of rotation and rotates in the second direction of rotation with the axis (11) of the impeller (10).
    [28]
    Device according to claim 27, characterized in that the generator group (14) comprises a freewheel (19) that allows a free rotation in one direction and forms a rotation-proof coupling in the other direction of rotation.
    [29]
    Device according to claim 26, characterized in that the generator group (14) comprises a transmission (15) between the generator (16) and the shaft (11) of the impeller (10) and that the transmission (15) comprises a mechanism to reverse the direction of rotation of the shaft (18) of the generator (16) relative to the impeller (10) to ensure that the generator (16) is always driven in the same direction of rotation regardless of the direction of rotation of the impeller (10) ).
    [30]
    Device according to one of the preceding claims, characterized in that the parts of the device (1) that come into contact with water are treated with a non-toxic coating based on a surface-treated composite coating.
    [31]
    A set of devices (1) according to any one of the preceding claims, characterized in that they are placed in a tidal river (2) or estuary at a distance from one another as seen in the direction of flow of the tidal river (2) or the estuary and over such a distance from the tidal river (2) or the estuary is spread that at least one device (1) is always in a zone with current.
    [32]
    A set of devices (1) according to any of the preceding claims 1 to 30, characterized in that they are placed in a tidal river (2) or estuary, the devices being placed next to and on top of each other to form a wall (36 ) of devices (1) which extends perpendicular to the direction of flow of the tidal river (2) or estuary and with free spaces (37) below the devices (1) to allow the flow to pass.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1761818A|1927-10-20|1930-06-03|Antonino De Spuches Pri Galati|Hydraulic wheels acting either as motors or as propellers|
    US4071305A|1976-10-13|1978-01-31|Fumio Ootsu|Transducer for conversion of tidal current energy|
    GB1518268A|1977-04-14|1978-07-19|Dixon A|Buoyant water wheel|
    WO2007053824A2|2005-10-31|2007-05-10|Harry Edward Dempster|Generation of energy from subsurface water currents|
    GB2445284A|2006-12-28|2008-07-02|Hugh Malcolm Ian Bell|A hydro-electric generator arrangement for underwater placement|
    FR2948422A1|2009-07-23|2011-01-28|Joel Garrigou|Semi-submersible or submersible underwater turbine device for producing mechanical energy, has base equipped with mobile shutter in order to restrict fluid passage by variation of downstream section|
    WO2012063255A2|2010-11-09|2012-05-18|Krishna Murthy Raju Kunaadharaju|A power generator|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BE201300034|2013-01-17|
    BE2013/0034|2013-01-17|
    BE201300291|2013-04-25|PCT/IB2014/000046| WO2014111800A2|2013-01-17|2014-01-16|Device for generating hydro-electric energy|
    PT14706073T| PT2946107T|2013-01-17|2014-01-16|Device for generating hydro-electric energy|
    DK14706073.5T| DK2946107T3|2013-01-17|2014-01-16|DEVICE FOR GENERATION OF HYDROELECTRIC ENERGY|
    US14/761,141| US9581127B2|2013-01-17|2014-01-16|Device for generating hydro-electric energy|
    SG11201506623UA| SG11201506623UA|2013-01-17|2014-01-16|Device for generating hydro-electric energy|
    ES14706073T| ES2720231T3|2013-01-17|2014-01-16|Device for generating hydroelectric power|
    EP14706073.5A| EP2946107B1|2013-01-17|2014-01-16|Device for generating hydro-electric energy|
    CA2934984A| CA2934984C|2013-01-17|2014-01-16|A paddlewheel device for generating hydro-electric energy|
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