10,000 square metres; an electrical generator and drive shaft therefor; a plurality of guide legs for anchoring to a bed of a body of water where there is tidal flow; the buoyant platform being constrained by lateral surfaces of the guide legs to be movable in a substantially vertical plane relative to the guide leg(s) in response to tidal movement; first mechanical coupling means mounted on the platform and second mechanical coupling means mounted on an upper portion of a guide leg or legs; the first and second mechanical coupling means cooperating to convert substantially vertical movement of the platform into rotational movement of a rotational driving member; the rotational driving member being operatively linked to the drive shaft of the electrical generator to bring about rotation of the drive shaft and the generation of electricity. Accordingly, in a first aspect, the invention provides apparatus for generating electrical energy from tidal movement; the apparatus comprising a buoyant platform; an electrical generator and drive shaft therefor; one or more guide legs for anchoring to a bed of a body of water where there is tidal flow; the buoyant platform being constrained by a lateral surface of the or each guide leg to be movable in a substantially vertical plane relative to the guide leg(s) in response to tidal movement; first mechanical coupling means mounted on the platform and second mechanical coupling means mounted on an upper portion of a guide leg or legs; the first and second mechanical coupling means cooperating to convert substantially vertical movement of the platform into rotational movement of a rotational driving member; the rotational driving member being operatively linked through a mechanical linkage to the drive shaft of the electrical generator to bring about rotation of the drive shaft and the generation of electricity.
- Cambios en el colon y el recto
- Regulación miscelánea
- Mójate la espalda y aplícate espuma o gel de afeitado si utilizas una maquinilla tradicional
- Cabeza ligeramente agachada
- Una predisposición genética
- El tiempo de recuperación es breve
- Acelera la regeneración del epitelio de las vías respiratorias
The cable, after passing around the pulley, is connected to a train of pulley wheels linked by drive belt, one of the pulleys in the train being linked by drive belt to a generator. Spanning the tops of a pair of adjacent columns 8 is a static platform 14 which has mounted thereon an electricity generator (denoted schematically by the numeral 16. The electricity generator is driven by a drive shaft (not shown) which is connected to a rotational driving member 20 via a train of gears (not shown). For example, in Canadian patent application number 1202227, there is disclosed an apparatus which makes use of the rise and fall of the tide to generate electricity. In US patent number 4,541,242 there is disclosed an apparatus for generating electricity from tidal power which comprises a float which is suspended on an arm from a shore installation over a body of tidal water.
I- 4 Japanese patent application 7-19154 discloses an apparatus which would appear to make use of a float tethered by means of a cable about a pulley mounted on the bed of a body of water. A further disadvantage of the arrangement illustrated in CA 1202227 is that the volume of the float is relatively small compared to the area covered by the platform and hence the energy generated by the apparatus would be relatively small compared to the overall size of the installation. The disadvantage of the apparatus illustrated in JP 61-272475 is that the volume of the float is relatively small compared to the area of the framework above the float and hence the torque generated by the movement of the float would be relatively small compared to the overall size of the installation.
Dolor De Estomago
An arrangement of this sort would appear to be much less efficient, in energy generating terms, than the tidal barrier installations since rather than generating electricity by direct passage of the tidal flow through a turbine, the tidal flow is used to drive a mechanical lever arrangement which is in turn used to pump fluid to the turbines, the need to convert mechanical movement into hydraulic movement and then back into mechanical movement of the turbine introducing potential inefficiency. Motion of the paddle blades is used to drive a generator through a mechanical linkage. In this respect, the apparatus of the present invention is distinguished from devices such as the “Salter’s Ducks” referred to above which rely upon the oscillatory motion induced by waves as the source of kinetic energy. Although the use of the rise and fall of the tide to lift buoyant bodies is known, see for example Canadian patent 1202227 discussed above, the existing forms of apparatus would appear to be constructed such that they cannot readily be used for large scale power generation, for example because of the structural constraints imposed by the need to anchor the installations to the shore, or the relatively small size of the buoyant bodies compared to the overall size of the installations.
Dolor Muscular Brazo
Instead of the annular rim and roller arrangement, the clearance between the column 8 and the wall of the bore 6 can be minimised and a suitable low friction material used to reduce friction between the column 8 and bore 6 as the platform moves up and down. Disposed within the shaft is a connecting rod which has a pair of laterally extending arms at the lower end thereof which link the connecting rod to the shaft. For example, in one suitable mechanism, the first mechanical coupling means comprises a driving arm extending upwardly from the platform; and the second mechanical coupling means comprises a lever arm pivotably mounted about a pivot point between its two ends, the lever arm being connected at one end thereof to the driving arm and at the other end thereof, optionally via a second connecting arm, to a first connecting arm; the first connecting arm in turn being pivotably connected to a rotational driving member (for example an eccentric drive member) for converting movement of the lever and connecting arms into rotational movement.
Dolor En El Hombro
This arrangement, which is of rather complex construction, would appear to represent a very inefficient means of converting tidal power into electricity, involving as it does the conversion of the movement of the float into rotational movement of a shaft, the rotational movement of the shaft being used to drive a pump to create hydraulic movement, the hydraulic movement in turn being converted to mechanical movement at the generator. Each of the drive shafts from the three wheels are connected downstream to trains of gears for converting the relatively slow movement of the primary wheels 200 and 201 into the much greater rotational speeds required to drive an electrical generator (not shown). The buoyant platform can have one or more (preferably a plurality) openings or guide bores, in each of which is slidably received a guide leg. 7 of the guide bores. The inner surface of each guide bore can be formed from a suitably low-friction material, or lubricating means can be provided for reducing friction between the guide columns and the guide bores.
Dolores Musculares Remedios
Rotation of the outer wheel 200, the radially inner toothed surface of which meshes with the teeth on the smaller wheels 201, causes the 12 wheels 201, and hence their associated drive shafts 213 to rotate. The rotational driving member in turn can be connected mechanically, either directly or via a gear train, to the drive shaft of the generator. Despertar con dolor de espalda . The apparatus preferably comprises a plurality of guide legs, for example four or more, the precise number depending on the size of the platform.
Typically the platform is of the order of at least five metres thick, and more usually at least 20 metres thick, for example 40 metres or more, the precise thickness required being determined on a case by case basis depending inter alia on the area of the platform. For example, the guide legs or columns andlor the guide bores can have surfaces formed from concrete or a corrosion resistant metal such as stainless steel, for example. Near each corner, the platform 2 has a shaft or bore 6, in which is disposed an anchoring column 8, which can be formed from concrete or steel. The buoyant platform typically is constructed from materials such as steel and/or concrete, preferably reinforced concrete. The opening(s) are preferably disposed inwardly of the periphery of the platform.