Hinged false sea bottom

FIELD: engines and pumps.

SUBSTANCE: invention covers the structures intended for supporting submerged turbines operated by water flow energy. Proposed hinged false sea bottom for at least one turbine in water flow comprises floating platform 3 or raft to carry turbine and support it in completely submerged and uplifted position. Note that aforesaid platform or raft are coupled with the help of braces 5, their one end being connected to anchor 6 installed on sea bottom. Length of aforesaid platform allows accommodating a number of turbines to be installed perpendicular to water flow direction. Each end of platform 3 is hinged with appropriate anchor 6. Platform 3, when submerged, is held by support 4 arranged on sea bottom.

EFFECT: loading bearing structure to support turbine operated as submerged.

20 cl, 15 dwg

 

The present invention relates to structures intended to serve as bearings for turbines, placed in such a way as to be submerged in water and is driven by the kinetic energy of water flow.

In patents GB 2256011, GB 2311566, GB 2347976 and GB 2348250 In, and filed patent applications GB 2396666 and GB 2400414 described construction, related to powered by water turbines, i.e. the rotor or rotors that are supported in the water column of the sea, river or estuaries so that the water flow can rotate the rotor (the rotor) to generate electricity or power on the shaft for use in the desired order. You know how the turbine is used for these purposes, and moreover, well-known and also described the design of various kinds, intended to serve as bearings for turbines.

In particular, the present invention relates to bearing structures for turbines designed for selection of the kinetic energy from water currents that can carry only one turbine or multiple turbines. Relevant turbine can be turbines with axial flow (i.e. the "propeller"), but can be and turbines with cross flow (similar, in principle, wind turbine Darrieus)that are installed with the shaft, aligned vertically or horizontally, but at right angles to the direction vodkaholic, or in fact can be any type of rational devices conversion of kinetic energy.

The novelty of the rotor or rotors of the turbine, to the support to which the present invention relates, does not matter, therefore, in practice, preference is given to the most economical and efficient mind.

It should be noted that when using a turbine or Converter kinetic energy (of any type) so that their drive was carried out by flow of water, the extraction of energy from the flow causes a decrease in the number of traffic passing water, which in turn causes large reactive forces in the turbine, which manifest themselves primarily as axial force acting in the flow direction (i.e. horizontally) and is proportional to the square of the average velocity through the rotor.

The present invention is the creation of a supporting structure, which is denoted hereinafter as "articulating false seabed", specifically to support the turbines operating in the water flow (which may be in the sea, river or estuary).

Another practical task of the present invention is to propose structures capable of supporting one or more driven water turbine rotor systems, for example, those which have already been on isany obtained in the applicant's earlier patent GB 2256011, GB 2311566, GB 2347976 and GB 2348250 In, and filed patent applications GB 2396666 and GB 2400414. However, the rotors of any type able to operate the flowing water as they can cause a generator to generate electricity, or they can trigger any other useful application system such as a pump or compressor can also be used with the present invention. The specified rotor (the rotor) may be likely to treat the following types:

- axial or propeller type (i.e. with the rotor (the rotor)which rotates around an axis approximately aligned with the direction of flow);

- cross-flow (or type "Darrieus") (with the rotor (the rotor)which rotates around an axis located approximately at right angles to the direction of flow and generally vertically, though perhaps horizontally).

These turbine rotors of any type is completely submerged in the water column current flows regardless of whether they are in the sea, river or estuary, and any ways that will be described later, satisfy the above requirements. In other words, the active components remain completely submerged during normal operation.

However, an important objective of the present invention is to provide means by which the rotors and with other key is Evoe the value of moving parts, such as actuators, can be significantly raised above the water surface to ensure reliable and efficient access located on the surface vessel for installation, maintenance, repair and replacement of these components. The term "actuator" in this context is denoted by a component that is driven by the rotor to produce electricity, pumping water, or perform any useful work, for example in the first case, it may typically consist of gear or multiplier connected to an electric generator, which will serve to convert the slow rotational motion of the turbine rotor speed required for efficient generation of electricity.

Another objective of the present invention is the ability to cover collects energy rotors cross-section of fast flowing water as a larger area (as a collection of energy will be proportional to the cross-sectional area of flow, which can be available for the rotor (rotor)). Another problem is the placement of the rotor (rotor) as high as possible in the water column to achieve the fastest moving threads (because most fast-moving streams tend to be in the top half of the water column). On what that is expected, in most variants of realization of the invention many of the rotor will be in a horizontal row, perpendicular to the flow direction, on a supporting structure, which should be described. However, in special cases, the invention can be applied not more than one turbine rotor.

In addition, in areas with tidal flows, the flow is typically bi-directional, moving in one direction during high tide and in the opposite direction - at low tide. Therefore, another important task in relation to the supporting structure and the rotor (rotor), based on him, is the same ability to act effectively when the flow approaching from either of two opposite directions in the case of use in a tidal environment in the sea or in estuaries.

According to the present invention features a hinged false seabed for at least one turbine in the flow of water comprising a floating platform or raft to install turbines or turbine with the possibility of maintaining completely immersed in the working position and in the raised position, in which the turbine or the turbine is removed from the water, with the platform or raft connected by struts connected at one end with anchoring means mounted on the seabed, wherein the length of the platform or raft made quite the full-time to accommodate the number of individual turbines, perpendicular to the direction of flow of the water, and each end of the platform or raft hinged corresponding spacer with an appropriate anchor means and immersed in the working position the platform or raft held by means of a support that is installed on the seabed.

Preferably immersed in the working position of the platform or raft appropriate spacers are arranged horizontally.

Bearing, mainly connected with the lower side of the platform or raft and made serving down that way, to stay on the seabed and install the platform or raft into the desired working position.

The preferred way of anchor means for each of the spacers include piles or ground anchors, upward from the sea floor, and a strut pivotally connected by hinge means to the upper end of these piles or ground anchors.

Platform or raft placed horizontally in the water with the turbine or turbines, standing on its top surface, with the platform or raft is provided with means for engagement with the upper end of the prop so that the platform or raft were hosted and fully supported by the support completely immersed in the working position.

It is preferable that the bearing is with enabled the employment level adjustment of the operating position of the platform or raft to place it at an appropriate height from the seabed, when the platform or raft immersed and interact with the appropriate support.

It is preferable that the bearing includes two or more separate supports, adjustable separately for setting the level of the platform or raft, depending on the roughness of the seabed.

It is preferable that the support includes a base which is placed on the seabed and filled with cargo for increased stability.

The preferred image base has a hollow core, and the goods made in the form of sand or stones that fill the core after placing the base in position on the seabed, in order to increase weight for increased stability.

The basis, mainly, equipped with sharp protrusions and paws made with the possibility of penetration into the seabed.

Preferably the bearing is submerged platform or raft goes across the whole width of the platform or raft, and layout made without significant passage for the water below the platform or raft, so that essentially all the water flowing in the direction of the platform or raft, passes above the platform or raft, increasing, thus, the average velocity of water passing through the turbine or turbines.

Preferably the platform or raft have in cross section a streamlined shape and a convex upper surface is here and flat, concave or convex lower surface, with an average flow rate of water passing through the rotors of the turbine increases, thus increasing the generation of electricity.

The profile platform or raft made mostly thus to reduce the shear velocity of the flow of water so as to reduce or shift turbulent flow passing through the turbine rotors.

Preferably provide a cable for raising and lowering the platform or raft between its raised and a work position.

The spacers preferably have a streamlined shape to minimize the effort braking that occurs when passing water.

Mostly platform or raft give neutral buoyancy force required to raise or lower, and it can be raised through the use of artificially applied lifting force.

Mostly artificially applied lifting force generated hinged flaps attached to the lower flat surface of the platform or raft, or by use of water jets or auxiliary engines attached to the platform or raft.

Usually flat smooth surface serves as a bearing structure and also plays the role of "false seabed, forming a smooth surface directly under t is binoy or near turbines, so this design serves to improve the uniformity of flow over this surface compared to the flow above, in General, a rough and uneven surface of the natural seabed.

Before reviewing the details of the concrete implementation variants of the invention, it should be noted that when the turbine or Converter kinetic energy (of any kind) is used in such a way that is driven by the flow of water, the extraction of energy from the stream causes a decrease in the number of traffic passing water, which in turn causes large reactive forces on the turbine, which manifest themselves primarily as axial force acting in the flow direction (i.e. horizontally) and is proportional to the square of the average velocity through the rotor.

This phenomenon is a consequence of the physical laws arising from the transfer of momentum of flowing water moving components of the turbine, and it will take place regardless of which type of turbine rotor. In General, the more powerful and more efficient the turbine rotor, the more force that is required to counteract, although under certain conditions, such as the so-called "dispersion"caused by the loss of load, large axial forces can occur even when the turbine does not produce a lot of useful energy to the turbine shaft, if Boobs what it produces. This condition is, of course, a direct consequence of the fact that the forces required to hold the rotor in the desired position, in response to forces transmitted to the rotor of the turbine to rotate, which in turn is an indicator of the efficiency of the production capacity on the shaft.

Moreover, in practice, any such turbine is subject to a number of cyclic loads caused by such phenomena as the effect of turbulence, the passage of waves, shear velocities in the water column (i.e., the change in velocity with depth) and vorticity, which all build on a supporting structure fluctuating fatigue loads. Therefore, a key requirement for any such turbine is a reliable retention of the rotor, discharging the energy in the same position in the column of moving water through construction, sufficient strength to withstand both static and dynamic loads applied to the rotor.

The proposal of this design relates to the present invention, in practice is complicated by a number of other General requirements, namely:

- the turbulent Wake created by the presence of the supporting structure in the water column, shall not cause excessive interference to the flow passing through the rotor or rotors (because it can reduce the effectiveness of the specified rotor is (rotors)). In fact, the design should preferably be performed so that this trail is completely bypassed the rotor (the rotor);

- the design should be as economical in manufacture, in order to minimize the cost of the system;

- there is a need in any practical and economical from the point of view of costs method of installation of the supporting structure in place with strong currents;

- there is a need in any practical and economical from the standpoint of the cost of the installation method on the design of the rotor or rotors to gain access to the rotor or rotors and associated power drives for their maintenance and, if necessary, repair or replacement;

- there is a need to provide an opportunity for possible retrieval for repair, replacement or decommissioning of the structure.

Some of the more detailed considerations relating to the provision of a bearing structure for turbines in the water flow include such factors as listed below.

First, it should be noted that the flow in the water column at high flow rates varies with depth, so that the maximum speed can be observed near the surface. In contrast, flow in the lower part of the water column, near the sea (or in the estuary, or re is s') bottom moving much slower. In addition, any natural irregularities on the bottom of the sea, river or estuary will cause disruption of the flow near the seabed and additional turbulence, the more uneven and rough is the nature of the bottom, the greater will be the thickness of the more slow-moving and turbulent lower layers.

Secondly, it should be noted that for effective and reliable selection of the kinetic energy from water currents using the proposed turbine rotor type, it is desirable that the flow of water passing through the rotor, was more homogeneous in terms of the speed square, obitaemoj rotor or rotors, moving as quickly as possible and had probably less turbulence. In other words, it is desirable to have a means of installing active rotor (rotor) in the fastest and most homogeneous and free from turbulence flows, avoiding crossing the rotor of any of the boundary layer or turbulent traces caused by the flow passing over an uneven bottom of the sea, river or estuary. It is extremely important to maintain such a rotor (rotor) design, able for many years to withstand the most extreme static and dynamic loads that will be tested.

Thirdly, an important additional consideration is that any device that is immersed in techinial the water column (it doesn't matter in the sea, the river or estuaries), should be available if necessary for maintenance, repair or replacement. Works under water in fast currents conducted by staff with diving equipment or underwater vehicles remotely operated (ROV), it is extremely difficult or even impossible. In the key problem to be solved by the present invention is the creation of a means of access to all components requiring maintenance or repair, in particular of the rotor (rotor) of the turbine and/or underwater wings with a mechanical power drive and generator, which they operate, making possible the rise of these objects above the surface of flowing water, to allow access from the surface vessel and does not require intervention under water by divers or remotely operated vehicles.

For a better understanding of the invention and to demonstrate its effective application, provides a link to the accompanying drawings, which illustrate the invention in regard to the aforementioned technical principles on which:

figure 1 shows a side view in vertical projection of the supporting structure for the installation of the turbine, based on the principles of the present invention, when the corresponding turbine (turbine) is in operation is ulozhenie;

figure 2 shows a front view of the vertical projection of the supporting structure for the turbine installation with figure 1;

figure 3 shows a side view in vertical projection design with figures 1 and 2 when installed turbine is raised in such a way as not to be submerged;

figure 4 shows a front view in vertical projection design and installation, shown in figure 3;

figure 5 shows a side view in vertical projection of the second variant implementation of the supporting structure for the installation of the turbine, based on the principles of the present invention, when the corresponding turbine (turbine) is in the working position;

figure 6 shows a side view in vertical projection design with 5 when installed turbine is raised in such a way as not to be submerged;

7 shows a side view in vertical projection of the third embodiments of the supporting structure for the installation of the turbine, based on the principles of the present invention, when the corresponding turbine (turbine) is in the working position;

on Fig shows a side view in vertical projection design with 7 when installed turbine is raised in such a way as not to be submerged;

figure 9 shows a side view in vertical the projection of the third embodiments of the supporting structure for turbine installation, based on the principles of the present invention, when the corresponding turbine (turbine) is in the working position;

figure 10 shows a side view in vertical projection design Fig.9 when installed turbine partially raised in such a way as not to be submerged;

figure 11 shows a side view in vertical projection design Fig.9 when installed turbine is fully raised so as not to be submerged;

on Fig shows a side view in vertical projection of additional embodiments of the supporting structure for the installation of the turbine, based on the principles of the present invention, when the corresponding turbine (turbine) is in the working position;

on Fig shows the front view in vertical projection of the supporting structure for the turbine installation with Fig;

on Fig shows a side view in elevation of another variant of implementation of the supporting structure for the installation of the turbine, based on the principles of the present invention, when the corresponding turbine (turbine) is in the working position; and

on Fig shows the front view in vertical projection of the supporting structure for the turbine installation with Fig.

Figure 1-4 shows a series of five turbines with axial flow, installed on individual p the STI on the corresponding bearing column or something similar (2). Five columns (2) installed next to each other on the upper surface of a flat wing-shaped platform or false seabed (3).

It should be noted that in the present invention, the type of turbine does not have serious value, because you can also use alternatives like turbine cross-flow "Darrieus" or other. Flat wing-shaped platform or design false seabed (3) is connected via spacers (5), connected one to each opposite end design false seabed (3) with anchoring means (6), on the seabed. These anchoring means (6) are usually short piles or ground anchors, scored as schematically shown, in the well on the seabed, but they can also be the anchor of any shape that can counteract with the sea floor with sufficient resistance to displacement or moving horizontally.

Spacers (5) are aligned in the direction (or as close as possible to the direction of current flow and is securely attached to the corresponding anchor means (6) by means of a hinged joint (7) and flat wing-shaped platform or false seabed (3) using another articulated joint (8). Articulation (7) may contain a pin joint, ball joint, or any kind of articulated what I which permits rotation of the spacers (5) vertically located relative to the river or seabed (SB) arc. Articulation (8) may in some cases be similar to the associated articulation (7) or, in some cases, described below, may contain not flexible, but destructible connection for rigid attachment of the spacer to a flat wing-shaped platform or false seabed (3).

Articulation (8) in the form of a flexible hinge, a pin or ball joints may also preferably be fixed mechanically, so don't be bending or rotation except in those cases when the specified locking mechanism is open. Since the details of how this connection can be fixed, not crucial to the invention, they are not explained and are not presented.

The main reason for use is not flexible joints or flexible connections that can be recorded and temporarily made not flexible in paragraph (8)is preventing a flat wing-shaped platform or structure false seabed (3) with their range of turbines (1) the possibility of tipping or rotation relative to the spacers (5) under the influence of axial forces resulting from the interaction of the rotors over.

Platform or structure of the seabed (3) and set the run on them turbines (1) includes one or more supports (4). Bearing or bearings can be submerged in the seabed, as shown in the illustration, or just lie on the seabed and be held in place by friction or other means. Although the illustration shows only one such bearing can be used two or more supports.

The use of articulated joints (7) and (8) allows to raise the flat wing-shaped platform or design false seabed (3) from the positions shown in figures 1 and 2, in the position shown in figure 3 and 4.

The way that flat wing-shaped design can be lifted to the water level shown in figure 1 by the dotted line (10). The figure also indicates how the support (5) can be rotated on a vertical arc.

It is also possible to use a single support (4) (not shown as such), which stretches to the sides (i.e. perpendicular to the direction of flow) for the full width of the flat wing-shaped platform or false seabed (3). This solution does not leave space for the passage of water under a flat wing-shaped platform or design false seabed (3) and has the advantage of increased water flow through a series of rotors mounted on the platform, although the installation and fastening of such support may be more difficult than when using a relatively small bearings type St is th.

As shown in figures 1 and 2, the lower surface of the flat wing-shaped platform or false seabed (3), provides a wedge-shaped fixing device (9)designed for engagement and more accurate installation of the platform relative to the support (4) on the seabed, when its down to the support and, in particular, when it is lowered into operating position which is shown in figure 1 as solid lines.

As mentioned above, figure 2 shows the front view in vertical projection of the same system, which is shown in figure 1, and illustrates the installation of five two-bladed rotors of the turbine (1) with axial flow. This view also shows the set having a smaller cross-section of the horizontal spacers (1A), located at the level of the axes of the rotors and is designed to increase structural strength, although these spacers (1A), as follows from being simultaneously pending patent application GB 2400414 the applicant "Turbine water-wheel drive, installed on the platform or false seabed", is not crucial for the purposes and functioning of the present invention. In practice, a number of details are described in the concurrently pending patent application, can be used in combination with the proposals of this application.

Figure 3 and 4 shows the same kinds of side and front in ver is icalneu projection system, shown in figure 1 and 2 respectively, but in the raised position, so that the platform, wing or design false seabed (3) raised to the water surface. You can see that in the raised position of the spacer (5) will effectively serve as a mooring, with swivel joint (7 and 8) allow movement under the influence of waves, but do not allow care system under the influence of currents.

The method of lifting a flat wing-shaped platform or false seabed (3) with a number of turbines (1) may preferably include giving buoyancy flat wing-shaped platform or false seabed (3), so it tends to float on the surface, but for the implementation of the present invention may use other means of lifting, such as a crane or winch on the ship. On the other hand, if the system is close to neutral buoyancy, you can use small forces, such as generated by thrusters or jets to summarize the turbine directly to the surface, as water on the surface vessel can be used for lifting the turbine above the surface.

If as a way of lifting a flat wing-shaped platform or false seabed (3) is used buoyancy, it can be controlled by filling with water of the internal cavity to the submersible is Oia, or by pumping the water to rise, or, on the other hand, it can maintain its buoyancy, and in this case we require a positive means to resist lifting forces of buoyancy and descent, as will be described in more detail below.

Finally, the hinge spacers (5)applied to limit motion of a flat wing-shaped platform or false seabed (3), may preferably have a streamlined cross-section in order to minimize the deceleration in the flow when the system is brought to the surface.

Figure 5 and 6 shows how bearing (bearing) (4), illustrated in the previous figures, can be attached to the bottom surface of the platform, wing or false seabed (3) instead of being fixed on the sea or river bottom. In this embodiment, the implementation support (support) (4) is intended for installation on the sea or river bottom, being omitted as shown in figure 5. Because the seabed or river bottom in many cases it may be uneven, prone to water erosion or have a rough surface, used in this implementation supports can be made adjustable, able to be extended or shortened by a small amount, maybe about 1 or 2 feet for height adjustment installation flat pterygoid boards shall army or false seabed (3) on the sea or river bottom. This regulation can also be used to align the flat wing-shaped platform to compensate for irregularities in the sea or river bottom in the case of using two or more supports. This regulation is not illustrated in figure 5 and 6, but may be implemented by any suitable mechanism, including, for example, the platforms, screw jacks, springs, etc.

Although the dive platform, wing or false seabed (3) can be carried out by filling with water, and their rise through the injection of air to displace the water, as described previously, 7 and 8 show an alternative way to control their position. In this case, provided the cable (10) (or cables)attached to the support (or supports)(4)installed on the seabed. This cable can be supported by a buoy (11), as shown in figure 1, when the platform, the wing or the construction of a false sea floor is missing or removed for replacement. When design false seabed (3) attached to its spacers (5), as shown in Fig, the said cable (10) can be attached to a winch (not shown)placed inside a floating platform, wing or construction of the false bottom (3), and this winch can pull the system down to the seabed, counteracting its buoyancy; Fig clusterwide situation, which design (3) partially attached to the seabed (SB), and final rest position when fully drawn down design shown by the dotted line.

You can use the same principle, in which the said cable is shown in Fig may be replaced by a rigid element or spacer, or a chain. In the case of using the spacer structure (3) can be raised by retraction struts down by rack and pinion or other suitable mechanism.

Figure 9, 10 and 11 shows an alternative implementation in which the ends of the spacers (5), which is attached to the connection point (8) a floating platform, wing or construction of the false bottom may be tight, but not sealed (previously described)and a rigid connection may be disconnected.

Figure 9 shows a system deployed in the working position, which relies on the support (4), located on the sea or river bottom, and substantially similar to the fully articulated implementation variant, shown in figure 1, 2, 3 and 4. Figure 10 shows how this layout system may emerge or to be raised by other means to the surface where it is angled, with turbines, partially protruding from the water, and a flat platform or wing, remaining aligned with the favor of the Koy (struts)(5) at an angle to the surface. It is obvious that the direction of flow to the right it will boost the system and Vice versa. If the system is close to neutral buoyancy, it may be the main way to generate the forces required for lifting and lowering.

When you need to remove the system, perhaps for maintenance or repair will be provided for detaching it from the spacers, as shown in figure 11. Spacers (5) are hollow and can be filled with air, so that if necessary they will float to ensure that they can be easily connected when installing or replacing the system. On the other hand, they can be marked with temporary buoys, and they are given the opportunity to descend to the sea or river bottom.

On Fig and 13 shows a layout similar to the illustrated in figures 1, 2, 3 and 4. Remain applicable same numeric positions and descriptions of most of the components, although the main difference is that the spacers (5) and flat wing-shaped platform or design false seabed (3) is shown attached to a solid substrate (12), which is immersed in the sea or river bottom to prevent piling, drilling for installation of supports or anchoring. The base can be made of concrete or similar durable and cheap material so the m way it had a hollow core in order to be able to deliver it to the place afloat. Hollow core can be filled with sand or stones (13) after installation in the correct position to add weight to increase resistance. As the only solid Foundation is in place, the spacers can be rotated from the swivel thus, to enable illustrated by lifting on the surface of the platform, wing or false seabed.

Solid base can when interacting with the seabed depends on its weight and friction to prevent movement, but to perform this function can also be useful with a specific profile sharp edges and legs (marked on the diagram as 14), which will penetrate into the seabed, or in some cases, they can be securely clamped or anchored using ground anchors (not shown).

And finally, on Fig and 15 shows a variant of the described solution, which may be desirable for the pile (pile) or anchor means (tools) (6) was high enough to protrude above the surface of the sea or river. This can be done for convenience when you mark the location of the system, but the pile or anchor means may equally be part of a bridge pier Il is similar structures, and this gives the opportunity to expand the power plant without the need for significant submarine works. You can see that in this variant implementation of the spacer (5) is inclined, when the flat wing-shaped platform or design false seabed (3) is omitted and the working position, and they are horizontal or nearly horizontal when the system is brought to the surface. As in the other described embodiments of the pillar or support (4) can be located, as shown, on the sea or river bottom, or they may be attached to the bottom surface of the flat wing-shaped platform or false seabed (3), as shown in figure 5 and 6.

Of course, there is the possibility configuration, in which the pile (pile) or anchor means (tools)(6) may have the same height between objects, illustrated in figure 1 and 14, and this configuration will be within sentences according to the present invention.

In practice, as shown on the drawings, generally rectangular flat platform or raft will have a longer dimension sufficient to accommodate the total width of any number of individual turbines, which need to be installed on its upper surface. In addition, the longer dimension will be placed perpendicular to the current direction, so that the turbine that will be installed on the upper surface, are arranged laterally during the working profile of the rotors, perpendicular to the flow so as to intersect as much as possible the water flow. In essence, the design will resemble the rectangular wing, suspended in the water column placed it near turbines. In General, turbine, and power transmission which they operate, will be supported on the platform vertically aligned streamlined struts, securely attached to the structure of the platform.

The cross-section or profile of a rectangular surface or platform (and cross-section is considered as parallel to the direction of flow) should be streamlined for two reasons, namely to minimize the drag caused by passing currents, as well as to facilitate orientation of the stream in such a way as to minimize turbulence in the flow passing over the surface and through the rotors. To obtain a streamlined surface of the front and rear edges of the profile in relation to the flow of water will be reduced on a cone or obtaining sharp edges, or, more preferably, to a narrow, but rounded edges, to the greatest extent similar to the front edge of the wing, or hydrocrane submarine, or the stabilizer vessel. In those situations, when there are high tides and low tides and the flow direction is periodically changed to p is otvorenie (at high tide and low tide), the surface has a profile, streamlined which ensures minimum drag in any direction.

However, as in the above-mentioned earlier patent application, GB 2396666 "Bearing structures turbines", the surface is a flat surface or platform may be curved when observed in cross section parallel to the flow, so that it can speed up or slow down passing over it flow so as to improve the distribution of velocities by reducing the "shear velocity", as well as to further strengthen the flow over the upper surface and through the turbine rotors by deflection of the flow, which otherwise would have passed under it. To achieve the improvement of the flow cross section of rectangular flat surface or platform may be (in some but not in all cases) also asymmetric or elliptical in cross section (i.e. convex on one side and, perhaps, concave, flat, or at least less convex on the other), so it creates a lift force perpendicular to the flow in substantially the same manner as the aerodynamic surface or hydrodynamic surface. Due to the generation of lift is actually the occurrence of the driving forces in the flow, known as "circulation" regarding Aracinovo cross section of rectangular flat surface, which can be used to increase flow above the surface compared to flow under it, and thus the turbine will get some increase in the rate of flow through the rotor and, therefore, increasing the power they produce. Although in most cases the specified flat pterygoid surface will be installed with its chord line (i.e. the line connecting the leading and trailing edge)under the zero angle of attack to the flow, the possible reasons for its installation at a small angle of attack to the flow in order to achieve a certain effect in the improvement of flow through the rotors.

Thus, a flat surface or platform will serve not only as a reliable design for installation of the rotor (rotor) of the turbine, but it is also designed in such a way as to improve uniformity and also to increase the rate of flow through the rotor (the rotor) of the turbine, which will contribute to improving performance and efficiency compared with the work when not modified stream.

The factor common to all variants of realization of the present invention is the fact that the said flat supporting structure or pterygoid layout can be placed with its horizontal (or nearly horizontal) plasmaphoresis on a support so that it can be shipped to a position near the sea or river bottom with its longitudinal axis perpendicular to the direction of flow. When installing so the number of turbines placed along its upper surface, align so that they have the disc surface of the actuator or rotating surface in a row, perpendicular to the flow, and so that the flowing stream most effectively rotated above the rotors.

If the flow is in one direction, as is the case in the river, can be used one-sided rotors, but if the flow is two-way, as in the case of tidal flows, should be applied to the rotors, which can operate when the flow going in any direction. This can be achieved through a rotor with an axial flow, which are considered the most effective known so far, due to the pitch control of the blades within 180 degrees, as described in the patent GB 2347976.

The above-mentioned flat wing-shaped surface with a number of turbines placed on its upper surface, will experience greater axial force in the direction of flow during operation of the turbine and some of the axial force at any period, even when the turbine is not working. This axial force will be proportional to the total area of the rotor and the square of the flow velocity. So exclusively is important to provide means, preventing displacement or tilting under the influence of these forces. This requirement may be fulfilled through the use of one, often two, and in some cases many spacers that connect between the fastening or anchoring means at the bottom of the sea or of the river in such a way as to be aligned approximately parallel to the direction of flow, and one of the longer edges of the pterygoid flat surface.

To make clear this arrangement, the pterygoid flat surface placed in the plan so that its longer axis is perpendicular to the flow in the horizontal plane, as mentioned spacers, designed to prevent it from moving or tipping over, are mounted so that they are arranged approximately horizontally and symmetrically at right angles to the long axis of the pterygoid flat surface, i.e. aligned with the flow direction. The opposite end of each strut is attached to the anchor means, or embedded in the sea or river bottom, or attached to a fairly robust construction, reliable interacting with the sea or river bottom, so that no slip has not occurred.

Also, the spacers (or possibly a brace) are normally attached at each end (i.e. at the point of attachment to to the once pterygoid flat surface and also at the point of attachment to the anchoring means) pin connections, swivel joints or ball joints, so they can be rotated at an angle not less than 90 degrees relative to the stationary anchor means (funds) on the sea or river bottom.

Another main feature of the present invention, which applies to all variants of implementation, is that the pterygoid flat surface with complex turbines, distributed along its upper surface, may be freely accessed from any intended for her supports, placed on the seabed, so as to reach the surface of the water; the lifting method may involve the use of buoyancy or any other external means of giving directed vertical forces, such as surface vessel with a crane or lifting system based on the winch. Another way of raising and lowering a flat surface is to give in the design of the buoyancy close to neutral, so that raising or lowering requires a relatively small force, so it can be raised through the use of artificially applied lifting forces generated by folding corners, attached to a flat surface, or even by using water cannons or auxiliary engines attached to a flat surface for lifting and lowering. Specified in domecy or auxiliary engines can be built into the surface. At neutral buoyancy and even in cases where the surface has significant weight, preferably applying a locking mechanism for communication with the bearing structure on the seabed to prevent accidental lifting or displacement of the flat surface at the working turbines.

When pterygoid flat surface lift thus, the above-mentioned spacers can prevent such movement due to the presence of pin joints or hinges on the anchor means, and where they are fastened to the edge of the pterygoid flat surface. Because the struts are attached by pins to the stationary anchor means on the sea or river bottom, they can describe an arc in a vertical plane with its center at the pin or hinge for anchoring the tool and therefore it is required to find the dimensions of the spacers, in which their length exceeded the maximum depth above the anchor means so that their opposite ends could rise above the surface of the water at its highest possible level. Because the spacer (spacer) will be subjected to a pulling effort caused by the current, when they are rotated and raised position, an additional characteristic according to the invention will have a streamlined profile in order to minimize the mentioned t is nosich efforts.

So pterygoid flat surface is forced to rise in the water column along the arc described by the struts to which it is attached, up until it is released to the surface water. In this situation, the turbine will be located above the water level, so they are easier to maintain and repair or facilitates the installation or dismantling of systems without using this underwater works of any type.

It may be clear that the present invention allows to achieve the following layout:

1. The number of turbines perpendicular to the direction of flow in the water column of a river or tidal flow on the upper horizontal surface of the pterygoid platform, forming the supporting structure, which may be based on one or more supports, and separates it from the sea or river bottom.

2. The offset or rollover of supporting structures together with their near turbines prevents one or preferably two (or more) horizontal (or nearly horizontal) spacers placed in the direction of flow in such a way as to connect them with fixed anchor means (or anchor tool)installed on the sea or river bottom.

3. These spacers attached a pin or hinge connections so that they can afford to raise the platform with its very near to the turbines on a vertical arc until it reaches the water surface to provide access to the turbines for maintenance, repair or replacement. In the raised position, the spacers serve as mooring, securing the platform and the number of turbines in place even in strong tidal or river currents.

4. Said platform may have a profile when observed in cross section parallel to the flow direction, and the profile shape provides a streamlined (to minimize resistance), and can also be such as to enhance the flow passing over the platform and passing through the rotors. This improvement can lead to a reduction in shear velocity, causing the acceleration of the flow immediately above the platform, and it also includes the deviation of the flow from lower levels in the water column to increase the effective rate of flow through the rotor (the rotor).

1. Hinge false seabed for at least one turbine in the flow of water comprising a floating platform or raft to install turbines or turbine with the possibility of maintaining completely immersed in the working position and in the raised position, in which the turbine or the turbine is removed from the water, with the platform or raft connected by struts connected at one end with anchoring means mounted on the seabed, wherein the length of the platform or raft is made sufficient to accommodate the number of individual turbines perpendicular to the direction of water flow, and each end of the platform or raft hinged corresponding spacer with an appropriate anchor means and immersed in the working position the platform or raft held by means of a support that is installed on the seabed.

2. Hinge false sea floor according to claim 1, characterized in that immersed in the working position of the platform or raft appropriate spacers are arranged horizontally.

3. Hinge false sea floor according to claim 1, characterized in that the bearing is connected with the lower side of the platform or raft and made serving down that way, to stay on the seabed and install the platform or raft into the desired working position.

4. Hinge false sea floor according to claim 1, characterized in that the anchoring means for each of the spacers include piles or ground anchors, upward from the sea floor, and a strut pivotally connected by hinge means to the upper end of these piles or ground anchors.

5. Hinge false sea floor according to claim 1, characterized in that the platform or raft placed horizontally in the water with the turbine or turbines, standing on its top surface, with the platform or raft is provided with means for engagement with the upper end of the prop so that the platform or raft were placed and fully on what was supported by the pillar completely immersed in the working position.

6. Hinge false sea floor according to claim 1, characterized in that the bearing is located with the possibility of adjusting the level of the operating position of the platform or raft to place it at an appropriate height from the seabed, when the platform or raft submerged and interacts with the appropriate support.

7. Hinge false sea floor according to claim 1, characterized in that the bearing comprises two or more separate supports, adjustable separately for setting the level of the platform or raft, depending on the roughness of the seabed.

8. Hinge false seabed according to claim 2, characterized in that the support includes a base which is placed on the seabed and filled with cargo for increased stability.

9. Hinge false sea floor according to claim 3, characterized in that the support includes a base which is placed on the seabed and filled with cargo for increased stability.

10. Hinge false seabed of claim 8, wherein the base has a hollow core, and the goods made in the form of sand or stones that fill the core after placing the base in position on the seabed, in order to increase weight for increased stability.

11. Hinge false sea floor according to claim 9, characterized in that the base has a hollow core, and the goods made in the form of sand or stones, which is filled core after placing the base in position on the seabed, to increase the weight to increase resistance.

12. Hinge false sea floor in one of PP-11, characterized in that the substrate is provided with sharp projections and paws made with the possibility of penetration into the seabed.

13. Hinge false sea floor in one of PP-11, characterized in that the bearing is submerged platform or raft goes across the whole width of the platform or raft, and layout made without significant passage for the water below the platform or raft, so that essentially all the water flowing in the direction of the platform or raft, passes above the platform or raft, thus increasing the average speed of water passing through the turbine or turbines.

14. Hinge false seabed indicated in paragraph 12, characterized in that the bearing is submerged platform or raft goes across the whole width of the platform or raft, and layout made without significant passage for the water below the platform or raft, so that essentially all the water flowing in the direction of the platform or raft, passes above the platform or raft, thus increasing the average speed of water passing through the turbine or turbines.

15. Hinge false seabed indicated in paragraph 12, characterized in that the platform or raft has a cross section with a streamlined shape and a convex upper surface and a flat, in the upside down or convex lower surface, with an average flow rate of water passing through the rotors of the turbine increases, thus increasing the generation of electricity.

16. Hinge false sea floor according to claim 1, characterized in that the profile of the platform or raft is designed to reduce the shear velocity of the flow of water so as to reduce or shift turbulent flow passing through the turbine rotors.

17. Hinge false sea floor according to claim 1, characterized in that there is a cable for raising and lowering the platform or raft between its raised and working conditions.

18. Hinge false sea floor according to claim 1, characterized in that the struts are streamlined to minimize the braking force caused by passing water.

19. Hinge false sea floor according to claim 1, characterized in that the platform or raft give neutral buoyancy force required to raise or lower, and it can be raised through the use of artificially applied lifting force.

20. Hinge false seabed according to claim 19, characterized in that the artificially applied lifting force generated hinged flaps attached to the lower flat surface of the platform or raft, or by use of water jets or auxiliary engines attached to the platform or raft.



 

Same patents:

FIELD: mechanical engineering.

SUBSTANCE: invention relates to structures of installations for energy conversion of water course of airflow into electrical power. Hydropower installation contains generator 1 and hydrodynamic drive 4, implemented in the form of two sequentially installed screws 7 and 8, implemented with rotation ability into side opposite and connected to generator 1 through conversion facility of rotational movement of two shafts into rotational movement of one shaft, implemented in the form of conic step-up gear 13, installed in inner body 6. Inner body 6 is affixed to external body 5 by means of two wicket gates 23 and 24, provided for spinning of water flow before its supplying to the back screw 8.

EFFECT: invention is directed to increasing of coefficient of efficiency of installation ensured by increasing of back screw coefficient of efficiency.

3 dwg

Water-wind engine // 2362046

FIELD: engines and pumps.

SUBSTANCE: invention is related to engines that use wind and water flow forces. Water-wind engine comprises two or three vanes, which are evenly arranged around shaft in single row and each arranged in the form of two parallel pipes creating frame, fixed with their ends on shaft. Between frames rods are fixed with suspended plates. Limiters are installed on pipes opposite to every rod and between rods. Engine components are made of steel and plastics. Pair of plates is suspended on every rod. Limiters are installed between rods at equal distance. Engine is equipped with massive site - area of engine fixation, in which shaft is installed vertically. Site may be fixed to ground, platform, transport, floating crafts. Plates at 1/3 width along their whole length have bending of 2, creating common angle of 4 provided free travel plates are folded in every pair of plates, which assists in their opening during working stroke.

EFFECT: engine is equipped with additional rows of vanes installed on shaft with displacement of vanes in different rows for increase of power and higher compactness of elements.

6 cl, 8 dwg

FIELD: engines and pumps.

SUBSTANCE: converter of fluid medium energy is related to the field of renewable energy sources, namely to energy of river or gas and its conversion mainly to electric energy. Converter comprises frame and cinematically connected the first and second, third and fourth vanes, the first and second overrunning clutches installed on central shaft, power generator, magnets installed in vanes. Converter is equipped with conical pair of gears that interact with multiplier and power generator, the first, second, third and fourth central sprockets, which interact with each other by the first and second units of vane opening and closing, and also third and fourth overrunning clutches, the first, second, third and fourth chains. The first - fourth vanes are installed on frame with the possibility to make reciprocal motion in direction of medium flow and to interact via the first - fourth chains with appropriate central sprockets. Every vane comprises vertical stand and two folding halves, on upper end of every vane half there is a pair of bearings installed, which interact with units of opening and closing of vane. Magnet is installed on every half of vane, and stand of vane is fixed to chain. In the end of working stroke every half of vane via bearings is arranged as interacting with appropriate units of vane closing, and in the end of passive stroke folded halves of vane are arranged as interacting with appropriate units of vane opening.

EFFECT: design simplification and reduction of converter prime cost.

7 cl, 11 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to water- and wind-power engineering, particularly to the devices converting fluid flow energy, for example that of rivers, ebb-tide and other streams, as well as wind power into electrical or mechanical power to drive various machinery. The proposed method consists in that a funnel is submerged into fluid medium to take it off and to direct to, for example a turbine. The aforesaid funnel features a bulbous shape on the side of in coming fluid flow. The funnel inlet area-to-outlet area ratio exceeds the ratio between the inlet fluid flow speed and flow boundary speed. Note that with the flow boundary speed further increase dynamic head decreases. Passing out from the funnel, the fluid flow is distributed among several turbines allowing for its power.

EFFECT: increased efficiency of fluid flow power take-off.

1 dwg

FIELD: water-power engineering.

SUBSTANCE: invention refers to water-power engineering, and namely to fluid medium energy utilising devices, and can be used for energy conversion of fluid medium flow, e.g. river flow, into electric one, whereby momentum energy of flows is converted into translation-and-vibration movement. Fluid medium energy utilising motor consists of a frame with a window, which is submerged with its longitudinal side across the medium flow and is fixed on foundation. Load-carrying member with working member is installed in the frame so that it can move. Working member is intended for being effected by fluid medium. It is fixed with its central part in the load-carrying member, and when in operation, it is installed angle-wise to the flow direction. Motor comprises a working member position changing device as well as hydraulic force transformer. Load-carrying member is installed so that it can move in a back-and-forth manner in the frame window along its longitudinal sides. Working member made in the form of a wing with a hydrofoil profile is installed on the load-carrying member axis so that it can turn about the axis and interact with fluid medium flow. Blade position changing device is made in the form of the blade turning stops symmetrically installed on the frame longitudinal side. Hydraulic force transformer is kinematically connected with load-carrying member.

EFFECT: invention allows increasing motor efficiency and simplifying motor design.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to hydropower and is designed to convert fluid medium power into electric power as well as to convert the power of air mass travel into electrical or mechanical power intended for rotation of various devices. The aforesaid device submerged in a fluid medium streamwise incorporates a continuous chain of flexible elements with working and idling runs enveloping the drive pulleys furnished with the vanes arranged perpendicular to flow direction. The power take-off shaft accommodates two spaced apart drive pulleys furnished with the contact elements engaged with the mating flexible elements, both being rigidly linked transverse con-rods. Ones of the said con-rods have a vertical axle fitted at their centers whereon rotary vanes are fitted arranged between the chains so that, during the working travel, they turn, being forced by the flow pressure, through 90° on both sides in the book manner and, during idling, they get folded. Others con-rods are furnished with a lengthwise brace rigidly linked thereto and arranged stremwise with vanes open and linked to the transverse con-rod with the axle with rotary vanes fitted thereon, the said transverse con-rod moving freely.

EFFECT: simpler design, higher reliability and longer life.

9 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: support system intended for, at least, one underwater turbine plant incorporates turbine units made up of turbine assemblies 3 and load-bearing column 1 coming vertically from underwater and seated on the seabed. The system includes a load-bearing structure for, at least, one turbine assembly mounted on column 1 and turning around it, and an appliance allowing selective motion of the load-bearing structure relative to column 1. Column 1 length section, top section 8, wherein the turbine assembly move, consists of two separate sections 9, 10 facing each other and separated by a certain distance between them to make lengthwise gap 11 between the said sections 9 and 10. Sections 9, 10 have a D-shape and form a cross-section of column 1 in the form of a complete ellipse or an oval. Bottom section 12 of column 1 features a round cross-section.

EFFECT: higher reliability of the support system allowing the turbine repair and lower costs.

22 cl, 27 dwg

FIELD: electricity.

SUBSTANCE: invention is related to the field of renewable energy sources, namely, wind energy conversion into electric energy. Converter contains frame and first and second blades that are kinematically connected with cord (chain), first and second drums (starts) that are motionlessly installed in the shafts of the first and second gears, which interact with the first and second gears via corresponding overrunning clutches, third gear and conical pair of gears with step-up gear and generator, fourth and fifth gears that interact with the third gear and third and fourth blades that are kinematically joined with cord (chain) and third and fourth drums (stars), which interact with fourth and fifth gears via corresponding overrunning clutches. Converter is made of two parts that are symmetrical in respect to outlet shaft of fifth gear, in which drive gear of conical pair is motionlessly installed. The second option of energy converter consists of two parallel adjacent pipes, in the middle of which leak-tight chamber is installed, and blades are installed inside pipes.

EFFECT: increase of efficiency factor and reduction of fluid medium energy conversion net cost.

9 cl, 8 dwg

FIELD: electricity.

SUBSTANCE: the micro hydro-electric power station is designed for converting energy of flowing medium into electrical energy. The device contains of ground unit, consisting of electricity distributing device, control system and controlled ballast load, a fixed water tank, generator located lower than the level of water in the hermetic tank and connected to the ground unit using water resistant cable. The water turbine with a horizontal axis of rotation, is mounted at the run-out and connected to the shaft of the generator through a gear transmission, in the form a multiplier located in a gondola. A cone is placed on the inlet of the run-out in front of the water turbine. The generator is located in the direction of flow behind the multiplier in the same gondola, which is supplied with a device for pumping water from its bottom part. The cone is made of flat elements; part of which is made in such a way that turning about longitudinal axes is possible. A driving gear is provided for this purpose.

EFFECT: increased operation reliability; power regulation.

6 cl, 1 dwg

FIELD: wind and hydraulic power engineering.

SUBSTANCE: invention relates to wind and hydraulic motors with vertical shaft of rotation. Proposed vertical shaft turbine has shaft hinge-mounted on post with rigidly and normally attached supports, and blades arranged between supports and installed on axle for turning being limited by two locks. Supports are installed in two directions to form row. Blades are made of closed elastic material tightly enclosing thickened axle to prevent axial displacement and vertical rigid edge spring-loaded relative to axle. Moreover, each blade is provided with stops fixing elastic material relative to thickened axle. Turbine can be furnished with additional rows of supports with blades installed higher and/or lower than first row. Turbine can reliable operate irrespective of velocity and gusts of wind, region and place of mounting, including movable objects, with provision of efficiency 10-16% higher than that of similar constructions.

EFFECT: simple design, effective operation.

3 cl, 2 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to non-conventional power sources, and it can be used in plants using energy of wind, river, deep sea and other currents. Proposed plant contains one or several vertical shafts and horizontal rods with blades. Said hollow rods are installed on shafts for limited turning relative to their axes. Opposite blades of each rod are rigidly secured on rod square to each other and eccentrically relative to axis of rod. Shafts adjacent in horizontal direction are made for rotation in opposite directions.

EFFECT: provision of simple ecologically safe device operating at any direction of current in liquid and gaseous medium and at medium interface.

3 dwg

FIELD: hydraulic engineering.

SUBSTANCE: device is designed for converting kinetic energy of small and medium rivers into elastic energy. Proposed hydraulic unit contains hydraulic turbine installed on frame with bearings on its shaft, generator mechanically coupled with hydraulic turbine, stream shaper and device in form of plates to protect hydraulic unit from floating debris. Hydraulic unit has intermediate vertically and horizontally installed shafts with bearings interconnected by conical gears. Vertical shaft is arranged in well built near bank and communicating with river by channel made under level of maximum possible thickness of ice cover. Part of horizontal shaft connected with hydraulic turbine is arranged in said channel. Upper end of vertical shaft is connected with generator through ground horizontal shaft and step-up reduction unit. Stream shaper is made in form of flaps installed on shaft for turning to direct water stream of river to its central part between which turnable gate is installed for contacting with one of flaps to direct water stream to right-hand or left-hand side of hydraulic turbine.

EFFECT: provision of reliable operation all year round.

3 cl, 2 dwg

FIELD: hydraulic power engineering.

SUBSTANCE: proposed hydraulic turbine generators are designed for creating stationary and portable hydraulic plants of modular type. Generators have rotor with central shaft non-rotating around horizontal axis or vertical axis (as version) on which chain drive gears are rigidly fitted, each being coupled through independent chain drive with planet pinion members arranged radially and uniformly around central shaft. Each member has blade reduction gear consisting of gear of chain drive and of large and small cylindrical gears, the latter being coaxial and rigidly coupled with gear of chain drive of blade reduction gear, and large cylindrical gear is rigidly secured on axle of blade installed horizontally for generator (or vertically, as version). Each blade rests by ends of its axle for rotation on brackets secured on hubs by bases. Hubs are installed on both ends of shaft for rotation and tops of brackets at both ends of central shaft are connected by ring rims being drive wheels connected with energy converters by flexible drive.

EFFECT: provision of effective and reliable operation.

3 cl, 4 dwg

FIELD: conversion of river stream energy into electric power.

SUBSTANCE: proposed plant has base in the form of catamaran that mounts current generators and their drive, current parameters stabilizing system, turbine capable of running in fully submerged condition, and its hoist. Turbine is made in the form of belt conveyer installed on edge at certain angle to river stream. Blades made of flexible material are secured throughout entire width and length of belt. Each blade is made in the form of bucket capable of folding and resting on belt during transfer from working to idle side of conveyer, and it has pocket on external surface for automatic raising of blade by river stream during transfer from idle to working position. Turbine hoist has rocker arm for turbine suspension hinged on one end to catamaran and on other end, to turbine frame that mounts generator-drive bevel gear so that longitudinal axes of hoist rocker-arm hinges and longitudinal axis of bevel-gear driven pinion are disposed on same line. In addition, hydroelectric power plant is equipped with device enabling variation of turbine angle of installation to water flow.

EFFECT: enhanced power capacity.

1 cl, 4 dwg

FIELD: power engineering.

SUBSTANCE: turbine is designed to convert energy of water or air streams inflowing from side. Proposed turbine has shaft hinge-mounted in post around which blades are installed for turning in radial directions between supports rigidly and normally connected to shaft. Turning of blades is limited by stops. Blades are made flat, with rounded off long edges, and are arranged around shaft minimum in two directions with spaces between edges. Turning of blades is limited by two stops, and tire in turbine, thus formed, repeats in length of shaft with uniform angular turn. Supports can be made in form of radial cantilevers with aerodynamic profiling of cross section. Stops are made retractable into support body if pressure force of blade exceeds calibrated force of spring holding the stop in working position.

EFFECT: increased efficiency of using energy of fluid medium flow, simplified design.

3 cl, 6 dwg

FIELD: hydraulic power engineering.

SUBSTANCE: invention is designed for creating stationary and transportable modular hydraulic plants and setting up unit hydraulic power stations. Proposed water-wheel generator has body, shaft with central bevel gear, planet pinion members, each containing blade and shaft with bevel gears on ends, one end of shaft being coupled with central gear. Central bevel gear is rigidly secured on one of ends of central shaft non-rotating around its axis and arranged vertically. Planet pinion members are arranged around central radially and uniformly. Shaft of each planet pinion member with bevel gears on its ends is made single-section, and bevel gear belonging to said shaft and pointed to side of blade of said planet pinion member engages with bevel secured rigidly and coaxially to smaller spur gear of blade reduction gear. Larger spur gear engages with smaller one, and it is secured on axle of blade installed vertically. Each blade rests by ends of its axle for rotation of brackets mounted by bases on cylindrical housing installed for rotation coaxially relative to central shaft, and tops of brackets at both ends of central shaft are connected by ring rims. Upper rim, being drive wheel, is coupled with energy converters. Central shaft rests by both ends with locking on framework provided with pontoon devices. Invention makes it possible to use river current energy with maximum efficiency at no adverse effect on environment caused by submersion of river flood lands caused by building of dams, energy of ocean currents, energy of tides and ebbs owing to use of blades with two points of support. Versions of design of water-wheel generators are provided in description.

EFFECT: simple design, high adaptability to manufacture and servicing of water-wheel generator.

5 cl, 5 dwg

Water-power plant // 2309289

FIELD: generation of electric energy by conversion of water flow.

SUBSTANCE: electric energy is generated with the aid of vane-type machine having at least one rotor, rotor-driven generator and float for vane-type machine; vane-type machine is anchored stationary and rotor is oriented in direction of water flow. Vane-type machine is held in suspended state below water surface. Float may be inflated with compressed air and may be filled with water when required. Rotor is mounted on axle oriented in way of water flow. Rotor blades may be turned with the aid of mechanism in direction of water flow or in opposite direction. Rotor axle is just hollow axle forming the float. Vane-type machine is invisible during operation of plant.

EFFECT: simplified construction; reduction of time required for mounting.

22 cl, 11 dwg

FIELD: wind and hydraulic power engineering.

SUBSTANCE: invention relates to wind and hydraulic motors with vertical shaft of rotation. Proposed vertical shaft turbine has shaft hinge-mounted on post with rigidly and normally attached supports, and blades arranged between supports and installed on axle for turning being limited by two locks. Supports are installed in two directions to form row. Blades are made of closed elastic material tightly enclosing thickened axle to prevent axial displacement and vertical rigid edge spring-loaded relative to axle. Moreover, each blade is provided with stops fixing elastic material relative to thickened axle. Turbine can be furnished with additional rows of supports with blades installed higher and/or lower than first row. Turbine can reliable operate irrespective of velocity and gusts of wind, region and place of mounting, including movable objects, with provision of efficiency 10-16% higher than that of similar constructions.

EFFECT: simple design, effective operation.

3 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: the micro hydro-electric power station is designed for converting energy of flowing medium into electrical energy. The device contains of ground unit, consisting of electricity distributing device, control system and controlled ballast load, a fixed water tank, generator located lower than the level of water in the hermetic tank and connected to the ground unit using water resistant cable. The water turbine with a horizontal axis of rotation, is mounted at the run-out and connected to the shaft of the generator through a gear transmission, in the form a multiplier located in a gondola. A cone is placed on the inlet of the run-out in front of the water turbine. The generator is located in the direction of flow behind the multiplier in the same gondola, which is supplied with a device for pumping water from its bottom part. The cone is made of flat elements; part of which is made in such a way that turning about longitudinal axes is possible. A driving gear is provided for this purpose.

EFFECT: increased operation reliability; power regulation.

6 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: invention is related to the field of renewable energy sources, namely, wind energy conversion into electric energy. Converter contains frame and first and second blades that are kinematically connected with cord (chain), first and second drums (starts) that are motionlessly installed in the shafts of the first and second gears, which interact with the first and second gears via corresponding overrunning clutches, third gear and conical pair of gears with step-up gear and generator, fourth and fifth gears that interact with the third gear and third and fourth blades that are kinematically joined with cord (chain) and third and fourth drums (stars), which interact with fourth and fifth gears via corresponding overrunning clutches. Converter is made of two parts that are symmetrical in respect to outlet shaft of fifth gear, in which drive gear of conical pair is motionlessly installed. The second option of energy converter consists of two parallel adjacent pipes, in the middle of which leak-tight chamber is installed, and blades are installed inside pipes.

EFFECT: increase of efficiency factor and reduction of fluid medium energy conversion net cost.

9 cl, 8 dwg

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