ITAN20020009U1 - SELF PROPELLED WIND PLANT EQUIPPED WITH A ROTOR CARRIER CAPACEDI SCROLL ALONG THE RESPECTIVE POLE - Google Patents

Description

The first patent application for utility model relates to a self-propelled machine for the production of wind energy, equipped with a nacelle capable of sliding along the respective load bearing wing.

As is well known, the search for so-called alternative energy sources has greatly developed in recent decades; the privileged direction of this research is to abandon the idea of the combustion of fossil products in favor of "clean and renewable" sources, more respectful of the environment and of the very health of human beings.

Among these environmentally friendly sources is fully included aeolian energy, to capture which they have been built, now for

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time, suitable plant sites, substantially constituted by a trellis or bearing pole (usually of considerable height) fixed

firmly ground and designed to support a rotor at the top a

more blades which, once put into rotation by the wind, produces enei already able to be "stored" in suitable accumulators

This technology, however effective, is however penalized by some practical and logistical difficulties,

A first or limit is in fact linked to the need to install the aforementioned poles in correspondence with those areas known to be affected by significant windy movements,

A s <30 limit wave is connected to the modalities that are necessary for the correct installation of the poles themselves;

In fact, due to their considerable height and the undoubted strength of the wind that hits them, it is easy to understand how each of said additional poles needs to be fixed to the ground in a mamera quai | i ± or never stable, normally after provision of suitable concrete foundations,

In the presence of areas with high seismic risk, however, these foundations, as well as the structure of such a plant, must be particularly resistant and therefore extremely penalizing both from the point of view of financial and construction costs, and from the point of view in view of the environmental impact.

In crane case it is evident how the construction of similar foundations, as well as the same permanent and definitive presence

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of the relative poles at the top of a mountain or in the open countryside, is often seen as an intolerable "offense" to the environment, to the point of sometimes provoking the prohibition - by the competent administrations - of the laying in work of the aforementioned structures for capturing wind energy.

This same permanent presence of these traditional plants is considered even more critical due to the fact that in reality it has been statistically found that their operation in the energy production phase is around 2000 hours / year, while for the remaining 6760 hours of the the same year they are destined Q to inactivity, while maintaining their physical "encumbrance" and _ i. <y>

visual.

or

A further limitation to the traditional technology described is linked to the difficulties encountered by the maintenance staff; of the aforementioned plants, when it is Q

intervene on a rotor installed at the top of a pole, perhaps to repair a fault or for the periodic replacement of some component.

In this case, in fact, the operators in charge must go to the top of the pole itself with all the risks and difficulties that are easily understood, also increased by the fact of having to operate; in generally quite windy areas.

Not to mention that the difficulty and delicacy of these "ir quota" interventions require rather long working times, with the consequent need to implement a prolonged shutdown.

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and therefore onerous assqi.

The specific purpose of the present invention is precisely that of obviating all the aforementioned drawbacks, on the basis of an idea of solution substantially aimed at giving wind energy production plants versatility and practicality of use so far certainly unknown,

More specifically, this idea of a solution has led to the creation of a self-propelled system, in which the necessary rotor-carrying pole is mounted on a tracked vehicle, capable, during the stop phase, of ensuring a stable and balanced support to the lattice itself, thanks to a series of <: absolutely

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more suitable stabilizers and leveling products.

Indeed the capacity claimed by the plant in question of

.03 moving freely and self-stabilizing is extremely or advantageous, since, on the one hand, it allows him to change his position - perhaps depending on the seasons and the direction of the winds - in search of the most favorable areas from time to time p <; r the capture of wind currents, while, on the other hand, it renounces to renounce the provision of those aforementioned permanent stations (including the necessary concrete foundations) considered negatively from an economic and environmental impact point of view.

It should also be noted that the system according to the invention provides that its aforesaid supporting pole is actually mounted on a rotating platform; this guarantees - even after that

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the plant itself has been stopped and stabilized in the selected parking location - the possibility of varying the angular position of the pole itself and therefore of the relative rotor-carrying head for the purpose of optimizing the uptake of wind currents in re; action to the direction taken from time to time by the wind.

Another interesting peculiarity of said self-propelled system is linked to the fact that the pole, or tower, adopted in it has the ability to recline, so as to move from the operational vertical position to an almost horizontal position, certainly more advantageous when the regret itself must be kept in non-operational order and perhaps transferred from one place to another.

Thanks to this favorable arrangement, for example, the pole of the plant in question must remain raised (therefore in a clearly visible position) only for the aforementioned 2000 hours / year of its normal operation; for the rest of the time, on the other hand, he will be able to keep:

Moreover, the fact of being able to recline this pole ensures that regret m e d e s can remain in an upright operating position only in the presence of optimal winds for the production of wind energy (between 4 and 25 m / sec), while it can be brought into its non-operational position or position as soon as the wind strengthens excessively

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This means that the structure of this new plant will never be required (unlike traditional fixed plants) to withstand particularly strong winds in a vertical position; in this perspective it is also evident how it is possible (unlike traditional fixed plants) to give it a structure that is not particular and robust and therefore certainly cheaper,

No less important is the further expedient on the basis of which the nacelle or "rotor head" is equipped with the ability to slide along its supporting pole,

This observation proves to be particularly useful when it is necessary to undertake the maintenance of the same spacecraft; in fact, in these casf it will be possible to lower the spacecraft itself along the respective pylon almost to ground level, where the personnel can intervene comfortably and without risks of any kind.

This measure is more and more appreciable if only one thinks that the plants are intended for particularly windy areas, as the risks of staying at a considerable height from the ground are certainly greater.

Of course, once the intervention is finished, the spacecraft itself p otr; to be made to rise again to their own operational position at the top of the respective pole,

For the sake of clarity, the description of the invention continues with reference to the attached drawing table, having only the ustrative and certainly not limiting value, in which:

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- figure 1 is a side view of the new self-propelled plant, shown in the operating set-up;

- figure 2 is similar to the previous one but shows regret itself in the rest position.

Well, the self-propelled regret in question consists in practice of a platform (1) mounted on a pair of tracks (2) and equipped with a perimeter series of telescopic stabilization legs (3), intended to be carried into an operational position - as shown in figure 1 - once the parking area of the system has been reached.

Above the aforementioned platform (1) is pivoted, with the possibility of free rotation, a large plate (4) on which the pole or "tower" (5) intended to support the nacelle (6) is actually installed. fixed the rotor (7) with the relative blades (7a).

The lower end of said tower (5) is pivoted to the aforesaid plate (4) with the possibility of being reclined by 90 °, as shown in figure 2; in particular, this non-operative position is reached by the tower itself (5) thanks to the action of a jack (8), whose stem (8a) is fixed to the pole itself (5), while its jacket (8b) is pivoted in correspondence with the aforementioned plate (4).

The two aforementioned figures allow to verify respectively how the vertical operating position of the tower (5) corresponds to the extension of the jack (8) and how, vice versa,

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when the jack itself (8) is retracted, the tower (5) is brought into a non-operative horizontal position.

It is reiterated that regret in question also provides for the possibility of sliding the nacelle (6) along the respective supporting pole (5), from the top operating position to a position close to the ground, in correspondence with which it is possible to comfortably carry out any operation of maintenance .

For this purpose, towards the base of the pole (5), there is a winch (9) which activates a cable (9a) which is in turn hooked, with the return of a pulley at the top (9b), to the aforementioned nacelle (6 ).

In particular, the aforementioned figure 2 makes it possible to verify how in reality the nacelle (6) is even able - in its lower end position - to decouple from the respective supporting pole (5) and to park above the tracked platform. carrier (1); the same figure 2 also allows to ascertain how this decoupling between the nacelle (6) and the pole (5) serves to make the aforementioned reclining operation of the latter more streamlined and easy.

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Claims (3)

BALDI-CECCARELLI PATENT ASSOCIATED STUDIO CLAIMS 1) Self-propelled wind power plant, characterized in that it consists of a platform (1), mounted on a pair of tracks (2) and able to be stabilized by means of a perimeter series of telescopic legs (3), above which a rotating plate (4) is provided on which - with the possibility of oscillating from horizontal to vertical position - a pole (5) intended to support a nacelle (6) to which a rotor (7) with the relative blades is fixed (7a); in particular, it being envisaged that said shuttle (6) has the possibility of sliding along the relative aforesaid pole (5), from one end to the other of the same. 2) Self-propelled wind power plant according to claim 1, ΓΤ characterized by the fact that the aforementioned alternative 90 ° oscillations of the aforementioned pole (5) are determined by means of a suitable jack (8), whose stem (8a) is fixed to the pole itself (5), while its jacket ( 8b) is pivoted at the aforementioned bearing plate (4). 3) Self-propelled plant according to claim 1, characterized by the fact that the alternative runs of the nacelle (6) along the relative pole (5) are determined by means of a winch (9), positioned towards the base of the pole itself and in charge of operating a cable (9a) in turn hooked, with the return of a pulley at the top (9b), to the nacelle (6) in question. BALDI-CECCARELLI PATENT ASSOCIATED STUDIO 4) Self-propelled wind power plant according to claim 1, characterized by the fact that the nacelle (6), once it reaches the base of the relative pole (5), is able to decouple from it and to position itself above the aforementioned turntable (ψ).