Hydraulic turbine system

FIELD: machine building.

SUBSTANCE: proposed system comprises rotor assembly with axial symmetry about rotational axis and features rotor end face located upstream, turbine shroud ring 102 housing, at least, part of rotor assembly and ejector ring 128 housing, at least, part of said turbine shroud ring 102. Said turbine shroud ring has inlet and outlet. Said turbine shroud ring outlet 117 comprises multiple elements turbine shroud ring mixer and features noncircular cross-section. Ejector ring 128 comprises inlet and outlet.

EFFECT: higher output and efficiency.

15 cl, 35 dwg

 

Considering the object of the invention relates to systems axial turbines and ejectors, for example those that are used for selection of energy when immersed in a stream of running water such as an ocean current, tidal maelstrom, over, over streams and other streams of fluid.

System flow turbines that take away energy from flowing water, called "turbines". Turbine flow usually contain a device that is similar to the screw propeller, or rotor, which is designed for the perception of a moving stream of water. As shown in figure 1, the rotor may or may not be smooth, or may be enclosed in a brace. When a thread hits the rotor, this flow creates a force applied to the rotor in such a way that it causes the rotation of the rotor around its center. The rotor can be connected either to an electric generator, or a mechanical device using such gear parts as gears, belts, chains or other means. Such turbines can be used to generate electricity and/or rotation of the pumps or the bringing in of motion of mechanical parts. They can also be used on large farms turbines current generating electricity (also called "groups turbine flow"), containing several turbines in a geometric structure, the art is meant to provide maximum power with minimal impact each turbine and/or the environment.

The ability to not banded rotor to convert the power fluid in the power of rotation when the rotor is in the flow, width and depth which is greater than the diameter of the rotor is limited documented theoretical value of 59.3% power flow, known as the Betz limit, documented A. Betz in 1926, This range is applicable in particular to the traditional vane axial and tidal otlivnyy turbines, shown in figa. Attempts were made to increase the capacity of health turbine flow with the aim to exceed the Betz limit. Properly designed bandages can cause the acceleration of the flow, when one approaches the rotor, compared to the oncoming flow, the impact of which is not banded rotor. Thus, the incoming flow is concentrated in the centre of the channel. Generally speaking, for a properly designed rotor this increased flow rate in excess of due to not banded rotor, causes the application of greater force to the rotor, and therefore higher levels of power than not banded rotor of the same size. In known not banded turbines currents, which are shown In figure 1, applied to the input concentrate the market and weekend diffusers, to increase the flow rate in the turbine rotor. Diffusers, which typically include a tube-like structure with openings along the axial length to ensure a slow diffusive mixing of the water inside the pipe with water on the outside of the pipe, generally require greater lengths for proper functionality and display a tendency to high sensitivity to changes in flow. Such long-sensitive flow diffusers impractical in many installations. Short diffusers can break the flow and thus reduce the efficiency of the energy conversion system.

According to the primary object of the present invention, the set of hydraulic system containing a rotor Assembly, which has axial symmetry about an axis of rotation and is located upstream end of the rotor; a brace turbine is located within at least part of the rotor Assembly, and a brace turbine includes an inlet opening brace of the turbine and the outlet of the bandage of the turbine, while the outlet of the bandage turbine includes many elements of the mixer shroud of the turbine and has a non-circular cross-section;

and the band ejector is located within at least a portion of the bandage of the turbine, and a brace ejector includes an inlet opening band ejector the outlet strip ejector.

Preferably, the set of elements of the mixer shroud of the turbine is located asymmetrically relative to the plane passing through the axis of rotation, and at least one of the elements of the mixer shroud of ejector characterized by lower velocity side of the plane passing through the axis of rotation is larger than at least one of the elements of the mixer shroud of ejector characterized by higher velocity side of the plane passing through the axis of rotation.

Preferably, the system further comprises a Central body around which rotates the rotor Assembly.

Preferably, the system further comprises a deflector which is located in front of the main body and form which provides inertial separation of debris from the water facing side of the rotor.

Preferably, the Central body contains located downstream end extending from the Central body toward the outlet bandage turbine and located downstream end contains one or more elements of the mixer.

Preferably, the Central body has a Central through cavity.

Preferably, the system further comprises a stator ring with the stator blades is located on Soi around the Central body, and the node ro the ora is located downstream of the stator rings.

Preferably, the inlet of the band ejector is asymmetric.

Preferably, the outlet strip ejector contains many elements of the mixer strip ejector.

Preferably, the set of elements of the mixer strip ejector asymmetric with respect to a plane passing through the axis of rotation, and one or more elements of the mixer shroud of ejector characterized by lower velocity side of the plane passing through the axis of rotation are greater than one or more elements of the mixer shroud of ejector characterized by higher velocity side of the plane passing through the axis of rotation.

Preferably, the rotor Assembly includes a rotor hub, the outer ring of the rotor and a first set of radially oriented rotor blades located between the wheel hub.

Preferably, the inlet of the shroud of the turbine has a non-circular cross-section.

Preferably, the length of the bandage of the turbine is equal to or smaller than the maximum external diameter of the brace turbine.

Preferably, the system further comprises a second band of the ejector, which is located inside at least a portion of the bandage of the ejector, and the second brace ejector includes an inlet opening of the second brace of the ejector and the region of the outlet of the second band is MS ejector.

Preferably, the area of the outlet strip ejector contains many elements of the mixer strip ejector.

According to another variant embodiment, the turbine system for energy extraction from water moving relative to the turbine system in the direction of current flow, has an input end configured to direction in the direction of current flow, and an output end opposite the input end. Water has a non-uniform distribution of velocity at the inlet end of the turbine system. The turbine system includes a rotor Assembly, the brace turbine having an internal cavity band turbine, inside of which is at least part of the rotor Assembly, and a brace ejector having an internal cavity band ejector, inside of which is at least part of the bandage of the turbine. The rotor Assembly has an axial symmetry about an axis of rotation and is located upstream end of the rotor, oriented towards the input end. Bandage turbine includes an inlet opening brace turbine located closer to the input end than the end of the rotor, and the outlet of the bandage turbine located closer to the output end than the rotor Assembly. Outlet bandage turbine includes many of the elements of the mixture is the body of the bandage of the turbine. The inlet of the shroud of the turbine is made with the possibility of sending a first volume of water moving in the direction of current flow in the rotor Assembly so that the first volume will cause rotation of the rotor Assembly and the energy extraction from the first volume of water before the first volume of water at lower energy is released from the bandage turbine bandage ejector outlet of the shroud of the turbine. Bandage ejector includes an inlet opening brace of the ejector and the outlet of the bandage ejector. Inlet bandage ejector asymmetrically relative to the plane passing through the axis of rotation, so that it has a greater cross-sectional area characterized with lower velocity side of the plane passing through the axis of rotation than are characterized by velocity side of the plane passing through the axis of rotation. The outlet of the bandage of the rotor passes in the direction of flow of the stream beyond the elements of the mixer shroud of the turbine.

Further, the turbine system can include a rotor Assembly, which has axial symmetry about an axis of rotation and which is located upstream end of the rotor, oriented toward the input end, the brace turbine having an internal cavity band turbine, inside of which is the, at least part of the rotor Assembly, and a brace ejector having an internal cavity band ejector, inside of which is at least part of the bandage of the turbine. Bandage turbine includes an inlet opening brace turbine located closer to the input end than the end of the rotor, and the outlet of the bandage turbine located closer to the output end than the rotor Assembly. Outlet bandage turbine includes many elements of the mixer shroud of the turbine, which is asymmetric with respect to a plane passing through the axis of rotation, so that at least one of the elements of the mixer shroud turbine characterized by lower velocity side of the plane passing through the axis of rotation is larger than at least one of the elements of the mixer band characterized by higher velocity side of the plane passing through the axis of rotation. The inlet of the shroud of the turbine is made with the possibility of sending a first volume of water moving in the direction of current flow in the rotor Assembly so that the first volume will cause rotation of the rotor Assembly and the energy extraction from the first volume of water before the first volume of water at lower energy is discharged from the band turbine outlet of the shroud of the turbine. Bandage ejector includes with the BOJ inlet bandage ejector and the outlet of the bandage of the ejector, passing in the direction of flow of the stream beyond the elements of the mixer shroud of the turbine.

The method of energy extraction from water moving relative to the turbine system in the direction of flow of the stream, may lie in the fact that the capture of the first volume of water in the brace turbine having an internal cavity band turbine, inside of which is at least part of the rotor Assembly, align the first volume of water through the hub of the rotor so that the rotor Assembly recovers the energy in the first volume of water before the first volume of water at lower energy is discharged from the band turbine outlet of the shroud of the turbine, grab the second volume of water in the bandage ejector having an internal cavity band ejector, inside at least part of the bandage turbine, and mix the first and second volumes, receiving mixed volume, before the release of the mixed volume of the outlet bandage ejector. Bandage turbine includes an inlet opening brace turbine located closer to the input end than the rotor Assembly, and the outlet of the bandage turbine located closer to the output end than the rotor Assembly. Outlet bandage turbine includes many elements of the mixer shroud of the turbine. Bandage ejector includes an inlet opening band ejector and you the same hole band ejector. Outlet bandage ejector passes in the direction of flow of the stream beyond the elements of the mixer shroud of the turbine.

A specific embodiment may include one or more additional options and features of the object of invention. Mixing elements of bandage ejector and mixing elements bandage turbine can be specially designed for the formation of the pump-mixer and/or pump-ejector, which increases the potential of energy extraction system, as by increasing the flow through the turbine rotor, and due to the mixing of low energy output band turbine with bypass flow, which enters into the inlet of the band ejector, without passing through the turbine rotor. Inlet bandage ejector can be made with the possibility of sending a second volume of water moving in the direction of flow of the stream into the internal cavity of the tire of the ejector and the inner cavity of the tire ejector may include many elements of the mixer strip ejector, which cause mixing of the first water volume with the second volume of the water before exiting through the outlet strip ejector. Form of bandage turbine and bandage ejector can minimize the velocity gradient acting on the end face of the rotor, to maximize first about what to eat and water to maximize the mixing of the first and second volumes before the release of the outlet bandage ejector. The velocity gradient is measured along the end face of the rotor.

Perhaps the presence of a Central body around which rotates the rotor Assembly. Bandage turbine may include a node stator which includes a stator vanes located in the axial direction around the Central body. Stator vanes can be performed can be rotated for adjustment of the first volume by increasing or decreasing the flow area provided for the direction of the current flow. The inlet of the shroud of the turbine may include one or more movable door elements, which are driven by increasing or decreasing the first volume flowing through the rotor Assembly. In front of the main body can be positioned deflector, the form of which provides inertial separation of suspended debris and/or waste water from the first volume, which faces the end face of the rotor. The Central body may include located downstream end extending from the Central body toward the outlet bandage turbine and entering the bandage ejector. The Central body may include a Central through cavity, designed to ensure the passage of waste water and/or aquatic flora and fauna through the Central body toward the output resp is rtiu band turbine without collision with the rotor blades. The Central through-cavity that is by choice - can include mixing elements at the trailing edge, also can pass with great energy bypass flow in a bandage ejector to improve the working characteristics of mixing in the band ejector. Located downstream end may include one or more elements of the mixer of the Central body. The flow through the hollow Central body located downstream elements of the mixer can improve the operating characteristics of the operation of the pump-mixer and/or pump-ejector.

The inlet of the shroud of the turbine may have a non-circular cross-section, which has a greater cross-sectional area characterized with lower velocity side of the plane passing through the axis of rotation than are characterized by velocity side of the plane passing through the axis of rotation. The elements of the mixer shroud of the turbine may include one or more blades of the mixer and crevices of the mixer. The rotor Assembly may include a rotor hub, the outer ring of the rotor and a first set of radially oriented rotor blades located between the hub and the outer rim. Outlet bandage ejector may include a second set of elements of the mixer strip ejector, which may include the impact of one or more blades of the mixer and cracks mixer.

Many elements of the mixer strip ejector can be asymmetric with respect to a plane passing through the axis of rotation. For example, one or more elements of the mixer shroud of ejector characterized by lower velocity side of the plane passing through the axis of rotation, can be greater than one or more elements of the mixer shroud of ejector characterized by higher velocity side of the plane passing through the axis of rotation. Similarly, many elements of the mixer shroud of the turbine can be asymmetric with respect to a plane passing through the axis of rotation, one or more elements of the mixer shroud turbine characterized by lower velocity side of the plane passing through the axis of rotation, can be greater than one or more elements of the mixer shroud turbine characterized by higher velocity side of the plane passing through the axis of rotation.

You can have a second brace ejector having an internal cavity of the second brace of the ejector, which is located inside at least a portion of the bandage ejector. The second brace of the ejector may include an inlet of the second brace of the ejector and the region of the outlet of the second brace of the ejector. The inlet of the second brace of the ejector can be asymm trionum relative to the plane, passing through the axis of rotation, so that it can have a greater cross-sectional area characterized with lower velocity side of the plane passing through the axis of rotation than are characterized by velocity side of the plane passing through the axis of rotation, while the outlet of the second brace of the ejector passes in the direction of flow of the stream beyond the elements of the mixer strip ejector.

Considering the object of the invention can provide many advantages. For example, the turbine flow is conceptually similar to wind turbines, but differ in detail to eliminate difficulties caused by water, such as strength, approximately 900 times higher than those faced by wind turbines; significant vertical buoyancy force due to buoyancy; destructive asymmetric and/or non-stationary load, due to the significant vertical changes in the velocity field flow, which is caused by the close proximity of the fixed surface such as the bottom of the reservoir, or the wall, or the hull of a ship, barge or other floating craft which is fixed turbine flow. Along the turbine flow can also occur the accumulation of sediments due to discontinuities of the velocity profile of the flow through the water outlet, about adusei low energy, from the turbine and re-mixing with the flowing stream that bypasses the inlet or inlets of the turbine. The safety of aquatic fauna and flora system to prevent corrosion in water and water pollution, can also raise important issues of efficient use of turbine flow. These needs typically require the use of more durable, more heavy and water-resistant materials, various support mechanisms and internal structure, different hydrodynamic profiles and careful management of the water flow along the turbine flow. All these factors can make a significant contribution to the costs which are incurred per unit of energy generated.

Various signs of turbine flow in accordance with this object of the invention can best be used to eliminate many of these problems. For example, it is possible to provide a bandage of the ejector, which covers the band of the turbine, which concluded the rotor Assembly. The second volume of water flowing into the bandage turbine bypasses the rotor Assembly and therefore does not possess selected energy. This second volume of water is actively mixed with the first volume of water after the first volume of water will pass through the rotor Assembly and are selected energy. Mixing occurs inside the band of the turbine and before release from the output from the Erste band ejector.

Based on the primary principles theoretical analysis described here turbines currents shows that they can produce a threefold increased power compared to modern non-banded turbines with the same frontal area of the rotor. The described turbine flow can improve the performance of power plants on the flow turbines and tidal turbines twice or more.

The details of one or more variants of the considered object of the invention is represented in the accompanying drawings and set forth in the following description. Other characteristics and advantages of the proposed object of the invention will become apparent from the description and drawings, and from the claims.

The accompanying drawings, which are included in the materials for this application and are part of them, illustrate several aspects of the proposed object of the invention and together with the description, help explain some of the principles associated with the described variants of implementation and the embodiments. In the drawings:

figa, 1B and 1C are diagrams illustrating examples of turbine-based systems, turbine flow;

figa, 2B, 2C and 2D schematic drawings showing several embodiments of the turbine system based on a turbine flow;

figa and 3B is schematic drawings, to the which shows the front views in perspective of the turbine system based on a turbine flow, having a rotor with six blades;

figa and 4B is schematic drawings showing views from the perspective of the turbine system based on a turbine flow representing a rotor-stator turbine, with parts cut away to show internal construction, is attached to the outer rim of the rotor, and the power in the ring oscillator on the inner ring of the rotor;

figa, 5B, 5C and 5D schematic drawings, on which is shown implemented on the installation selection of turbine-based systems, turbine flow;

6 is a schematic drawing, which shows an alternative embodiment of the turbine system based on a turbine flow pump-mixer and/or the pump-ejector with the blades of the mixer, which are different in shape and size around the circumference in the areas of the rear holes of the brace turbine and bandage ejector;

figa, 7B, 7C and 7D is a schematic drawings showing an alternative embodiment of the turbine system based on a turbine flow with two supplied on special order wheels turn and the wing for the orientation of the flowing stream and movement, doors locking and thread management and stators, which can be rotated by typing in a plane passing through the door or the stator and the Central body of the turbine system based on a turbine flow, or in the leading of this plane;

figa, 8B and 8C is a schematic drawings showing an alternative embodiment of the turbine system based on a turbine flow with a Central body having an open channel and having a blade mixers and ejectors with slotted mixers;

figa, 9B, 9C and 9D is a schematic drawings showing an alternative embodiment of the turbine system based on a turbine flow with input lock system garbage;

figa and 10V - schematic drawings showing an alternative embodiment of the hydraulic system, which is the turbine system based on a turbine flow with two-stage mixer and ejector; and

11 is a block diagram of a sequence of operations illustrating a method in accordance with an embodiment of the object of invention.

Concepts and technology of gas turbines has yet to find industrial application to axial flow turbines. In most of the existing turbines currents for selection of energy flow is one mnogolopastnyj the rotor, which is based on the concepts of the driving propeller. As a result, a significant amount of water flow through the turbine blade flow, converts part of the energy flow in the swirl flow around the axis. This vortex component absorbs energy, which is impossible hearth the in the generator, and also induces the rotation of the flow in a turbulent trail system, which may cause an exposure layer flow, the mixing of sediments, disorientation aquatic flora and fauna. These effects can reduce and even eliminate, using the considerations hydrodynamic flow rotor-stator of the turbine in relation to a full-featured gas turbine. Approaches to the design of rotor-stator of the gas turbine can be applied to turbines flow to essentially eliminate the harmful effects of turbulence of the output stream on the environment behind the turbine.

In addition, traditional systems single turbines, such as shown in figa, have a delay of start of rotation, and means and energy up until the local level axial speed will not be high enough to create a positive hydrodynamic lift force and torque acting on the aerodynamic profile of the rotor. Rotor-stator system with a properly designed inlet holes in accordance with this object of the invention do not have this restriction and are therefore able to create a torque on the rotor and to develop capacity at all local levels of speed above zero. In addition, in the foregoing banded turbines techinian taken into account hydrodynamic efficiency of the flow around the outer surface of the bandage, especially in the presence of a free surface, the bottom of the reservoir or the side wall or body of the craft. Adaptation of inlet turbine flow to to combat waste and/or manipulation of aquatic flora and fauna, approaching the inlet, is also implemented on the choice of the sign of the proposed object of the present invention. In front of the entrance hole, you can install the bulbous body shape, defined aerodynamic or hydrodynamic considerations in order, primarily, to reject the incoming water and any suspension containing garbage out.

The current water flow has less inertia than a suspension of large particles of debris and/or water flora and fauna, and so it can follow the contour of the body bulbous shape to get into the brace turbine or bandage ejector. Present in suspension objects greater inertia, such as aquatic fauna, debris, etc. that deviate from the lines of flow of water and therefore can't get into the band turbine or bandage ejector.

In order to achieve greater capacity and efficiency in the currents, it is usually necessary to carefully fit the fluidic design of the tire and rotor to a vertically varying velocity profile on the approach to the turbine. The velocity profiles generally follow from the dependence of the power law, according to which the ratio is between the minimum level and the maximum level is 1/10, and they usually, but not always, occur in the layer of flow and free surface, respectively. Although wind turbines meet with similar vertical change (velocity profile), it is not so serious in its consequences, as in the case of turbine flow, because the wind turbine has a tiny scale compared to the height of the Earth's atmosphere. Water approximately 900 times denser than air. Since the generated power depends on the density of the fluid and the cube of the local velocity and the axial force depends on the density and the square of the local velocity, this level change is a significant asymmetric PTO and structural loads on the rotor and shroud system, if these factors are not to fight with fluidic design. While wind turbines are generally symmetrical about its Central axis of rotation, banded turbine flow allow you to apply the signs of asymmetry to struggle with the complexities introduced by the velocity profile flow and mitigate their impact. In particular, although the inner surface of the bandage must be almost round, where it surrounds the rotor, this restriction does not apply to the rest of the geometry of the truss, either inside or outside. Thus, change is giving fluidic path around the circumference of the brace can be used to reduce the distortion of the flow to an acceptable level by the moment, when this thread reaches the end of the rotor. In addition, such an asymmetric or lost a round shape fluidic paths can reduce the influence of the flow leaving the system on the environment by reducing erosion impacts and stirring of sediments on the bottom and walls of the reservoir where there is current.

Ejectors suck air flow in the system and thereby increase the flow through the system. Through the use of concepts annular aerofoil design, providing some guiding nozzles of the ejector, the size of the rotor required for the desired level of delivered power can be reduced even half or less compared with the desired size for the non-banded rotor. Shorter rotor blades are cheaper and structurally more resistant to external influences. In addition, the axial forces applied to the rotor due course, also can be reduced by half or more, shifting at the same time the load on the non-rotating elements are not banded system. In the case of loads, withstand a static non-rotating parts, their design, manufacture and maintenance become much easier and more economical.

Mixers and ejectors are short, compact version pumps-mixers and pumps-EOL is Ktorov, which is relatively insensitive to distortions of the flow and is widely used in applications related to high-speed reactive movement, providing the flow velocity near the speed of sound or higher (see, for example, U.S. patent No. 5761900, which also uses a mixer downstream to increase traction while reducing noise issue). In all previous applications of the technology mixers and ejectors associated with the production of power, including the application of wind turbines, developed by the authors of the present invention, all the numerous surfaces in three-dimensional space, which initiate the mixture flows between the two streams, hereinafter referred to as the mixing elements have the same size and are arranged in a repetitive structures around the circumference of the tyre. To cope with the distortion of the velocity introduced in the flow approaching the turbine flow, and to ensure effective operation within its inherent and lost the round shape of the inlet holes of the brace, you can apply the recommended design of the mixing elements to influence the maximum mixing and pumping for each district sector system.

Like wind turbines turbine flow must be made with the possibility of regulation given the th power with the to make it comparable to the level of the nominal power of the generator. Traditional wind turbines with three blades may be exposed to wind speeds exceeding which the working medium wind speeds up to ten times, and should include complex mechanical breaking system to avoid damage to the generator and/or design. Turbine flow are exposed to less extreme changes in speed and therefore, as a rule, include a differently designed tripping system. Turbine flow with multiple bandages, mixers and ejectors using a rotor-stator system provides three tools to influence off in addition to the standard breaking the system. The stators can be articulated to put so that you could essentially block the inlet and rotate locking doors, built in the inner surface of the guide nozzles in the flow field, thereby blocking the flow path, and/or you can move the body in the form of bulbs, blocking debris at the entrance, into the inlet to reduce consumption.

Mounting system for banded turbine flow is quite different from that inherent in the towers used for wind turbines, and therefore they must be embedded is advised to avoid any adverse impact on the hydrodynamic efficiency is rigidly connected system. System on stilts or on platforms, such as shown in figure 1, will be subject to the effects of Aero-hydrodynamic noise of different levels from different sources, and this interference should be reduced to ensure effective supply of energy.

Turbine flow with multiple bandages, mixers and ejectors provide unique systems integration rotors and generators, because the turbine does not need to change directions or in the case of tidal currents need to be planned change, held two times per day, and the generator can be placed more convenient for the effective and/or simplified preventive maintenance. The use of shrouds on the periphery of the rotors, which are often used in gas turbines, provides the use of a drive system of the gear rim and the placement of the generator in a binder or on it. In addition, it allows you to design the Central body as an open pipe to pass through it water flora and fauna.

Figure 2-10 shows a number of embodiments, which illustrate some of the characteristics that are within the scope of the claims of the object of invention. In accordance with one embodiment, the hydraulic system includes a brace 102 turbine aerodynamic or hydrodynamic circuit, which is neikrug the second at some point of its axial length. Inside the bandage 102 turbine enclosed Central body 103 with an aerodynamic or hydrodynamic circuit, attached to the brace 103 of the turbine, which has an inlet opening 105 of the bandage 102 of the turbine, through which absorbed the first volume of water. The Central body 103 has axial symmetry about the axis of rotation of the rotor. Stage turbine 104 surrounds the Central body 103 and includes a stator ring 106 of the blades 108 of the stator and the impeller or rotor 110, with or without blades a the impeller or rotor. The rotor 110 includes an end face of the rotor formed by the front edge of the blades a rotor. The rotor 110 is located downstream from the blades 108A of the stator, so that the front face of the rotor, essentially aligned with the rear edges of the blades 108A of the stator. The blades 108A stator mounted on the Central body 103, and the blades a rotor fastened and held together by inner and outer rings or rims, or - alternatively-by hub 112b or the outer ring s. The inner ring or hub surrounds the Central body 103 and is driven into rotation around it. The output area of the mixer element, which includes the region of the outlet or the end part of the bandage 102 turbine, includes a ring of blades 120A of the mixer, which are downstream beyond Lopato a rotor and are different in shape or size so as required to fill the gap between tyre turbine 102 and the brace 128 ejector, and promote the flow of sucked water in the vicinity of the Central body 103. This design is similar to the blades of the ejector illustrated in U.S. patent No. 5761900, while the blades of the mixer 120A pass downstream into the inlet 129 of the brace 128 ejector. The ejector 122 also includes a brace 128, which may be non-circular for sites its axial length and which surrounds the ring of blades 120A mixer on the bandage of the turbine. The brace 128 ejector may include mixing elements of different sizes and shapes in her area of the outlet, as shown in Fig.6.

The Central body 103, as shown in Fig, can be connected to the bandage 102 turbine with a stator ring 106 (or other means)to avoid damage and nuisance and extending to a great distance, low-frequency pressure wave generated by traditional turbines currents and tidal otlivnye turbine, when the turbine blade creates a cocurrent stream, beating in the carrier rig. Airfoils of the bandage 102 of the turbine and bandage ejector 128 are preferably aerodynamically convex for intensification of the flow through the turbine rotor in a manner that reduces vertically the speed change at the end of the rotor, generated distortion upstream.

It was calculated that for optimum efficiency in a preferred embodiment 100 of the implementation of the area ratio of the pump-ejector 122 defined by the cross-sectional area of the outlet strip ejector, divided by the cross sectional area of the outlet shroud of the turbine must be in the range of from 1.5 to 4.0. The number of blades 120A of the mixer should be in the range from 6 to 14. Each blade will have inner and outer corners of the rear edge in the range from 5 to 25 degrees. The location of the output opening between the blades will be in the place of entrance or inlet 129 of the brace 128 ejector. The ratio of height to width of the channels of the blades will be in the range from 0.5 to 4.5. The degree of penetration of the mixer will be in the range from 30 to 80%. The corners of the rear edges, at which the Central body 103 is now, will be thirty degrees or less. The ratio of length to diameter (L/D) of the entire system 100 will be in the range from 0.5 to 1.25.

In the General case, the energy conversion system based on a turbine flow includes an axial turbine 100 course, which includes the blades 108A of the stator and the blades 112 of the impeller or rotor 112 and which is surrounded by a bandage 102 turbine aerodynamic contour that includes will sosite the performance communications elements in their area of the outlet or terminal region, and a separate brace 128 ejector, overlapping with the bandage 102 turbines, but behind her. The brace 128 ejector may also include advanced mixing elements, such as blades 119 mixer or cracks mixer, in their area of the outlet. The ring 118 structural elements of the mixer, such as petals or slits 119, located in region 117 of the outlet of the brace 128 ejector, can be considered as a pump-mixer and/or the pump-ejector, which provides a means for the proper exceeding the Betz limit for the working efficiency of the turbine system 100 based on the turbine flow and tidal turbines.

On figa shows the step 104 of the turbine, which includes a host 110 of the rotor, which is mounted for rotation on the Central body 103, surrounded by brace 102 turbine with built-in elements 120 of the mixer having a rear edge, shallow entered in the input plane of the brace 128 ejector. The step 104 of the turbine and the brace 128 ejector structurally connected to the bandage 102 of the turbine, which itself is an element which carries the main load.

The length of the bandage 102 turbines in some embodiments may be equal to the maximum external diameter of the bandage 102 of the turbine or to be less than him. The length of the brace 128 ejector in some embodiments may be equal to max the maximum external diameter of the brace ejector or exceed it. The outer surface of the Central body 103 may have an aerodynamic or hydrodynamic circuit to minimize the effect of flow separation downstream from the turbine system 100 based on the turbine flow. The Central body 103 can be longer or shorter than the bandage 102 turbine or bandage 108 ejector or than their total length.

The cross-sectional area of the inlet 105 of the bandage of the turbine and the outlet 115 of the bandage of the turbine may be equal to the area of the ring occupied by the stage 104 of the turbine, or more, but not necessarily circular in shape, to allow control of the flow source and the influence of his cocurrent stream. The cross-sectional area of the internal flow passage formed by the ring between the Central body 103 and the inner surface of the bandage 102 turbine has an aerodynamic shape that allows you to have a minimum size in the plane of the node 110 of the rotor and otherwise - to ensure a smooth change in these cross-sections from their respective input planes to their respective output planes. The inner surface of the bandage 102 of the turbine and brace 128 ejector has an aerodynamic and hydrodynamic form, contributing to the flow direction in the inlet 105 of the bandage turbine, excluding the gap (flow) from their surfaces and providing planologische flow into the inlet 129 bandage ejector. The area of the entrance aperture of the brace 128 ejector, which may be non-circular in shape, is larger than the cross-sectional area of the outlet 115 of the bandage turbine, incorporating elements 118 mixer located in the output hole of the guide shell of the turbine. The cross-sectional area of the output aperture 117 bandage turbine can also be non-circular in shape.

The example means 130 PTO, as shown in figa and 4B, may take the form of a wheeled structure, mechanically articulated on the outer or inner rim of the node 110 of the rotor with a power generator (not shown)located above or below the node 110 of the rotor. Vertical bearing shaft 132, shown in figa and 5B, with the rotating sleeve 134 may serve as a support rotation for the turbine system 100 based on the turbine flow and may be located before the location of the center of pressure is exposed to the turbine system 100 based on the turbine flow, for semioriental turbine system based on a turbine flow when it is immersed in the flowing current. To the upper and lower guide surfaces of the nozzles of the turbine and/or ejector respectively attached vertical caster wheels 136 and a generally horizontal wings 135 (see Fig.7)to stabilize the direction of orientation in accordance with RA who tion flow and tidal currents and to provide steering control during vertical movements.

The turbine system 100 based on the turbine flow can have constructive support provided by other systems, as shown, for example, on figa, 5B, 5C and 5D, for example, such as pile 133, stationary Foundation 137, files 138 or craft 138, such as a barge or raft.

For the selection of maximum energy of the bypass air flow you can use variable geometry elements of the mixer, as shown in Fig.6. Elements 140 of the mixer can be asymmetric with respect to a plane passing through the axis of rotation of the node 110 of the rotor, as shown in Fig.6.

7 shows the rudder control and the wings 135 and 136, and is supplied as an optional locking doors 140A, 140b. You can rotate them through a link (not shown) in the current thread, to reduce or stop the flow through the turbine 100, when possible damage to the generator or other components due to the high flow speed. On fig.7D presents another implemented at the option of the turbine system 100 based on the turbine flow. Coverage angle in the output area of the stator blades can be mechanically modify 142 in place, for example, by turning the blades of the stator to align with changes in the velocity of the fluid flow to guarantee a minimum residual turbulence in the flow leaving the rotor.

Additional al the alternative options may include: a Central body 144 with an open Central channel, as shown in figa and 8B, which may include elements 145 mixer Central body; mixers 146 type of cracks, as shown in figs; Central body, which includes baffles 147 debris, as shown in figa, 9, 9C and 9D; and several nozzles 148 ejector, as shown in figa and 10V.

Figure 11 presents a block diagram of the sequence of processes, illustrating the method in accordance with an embodiment of the object of invention. At step 1102 carry out the seizure of the first volume of water in the brace turbine having an internal cavity band turbine, inside of which is at least part of the rotor Assembly. Bandage turbine includes an inlet opening brace turbine located closer to the input end than the rotor Assembly, and the outlet of the bandage turbine located closer to the output end than the rotor Assembly. Outlet bandage turbine includes many elements of the mixer shroud of the turbine. At step 1104 sent the first volume of water through the hub of the rotor so that the rotor Assembly rotates and recovers the energy in the first volume of water before the first volume of water at lower energy is discharged from the band turbine outlet of the shroud of the turbine. At step 1106 carry out the seizure of the second volume of water in the bandage ejector, having the second internal cavity of the tire ejector, inside at least part of the bandage of the turbine. Bandage ejector includes an inlet opening brace of the ejector and the outlet of the bandage ejector, which takes place in the direction of flow of the stream beyond the elements of the mixer shroud of the turbine. At step 1110 combine or mix the first and second volumes, receiving mixed volume, before the release of the mixed volume of the outlet bandage ejector. The design used in the implementation of the methods relevant to the subject matter of the invention may include other characteristics of the structure described above.

Embodiments presented in the foregoing description, do not represent all of the embodiments corresponding to the object of the invention. On the contrary, they are just a few examples, relevant aspects related to the described object of the present invention. Wherever possible, the same position will be used on all drawings to designate the same or similar parts in the design. Although the above detailed description of some of the options, possible other modifications or additional options. In particular, it is possible to provide additional features and/or options in addition to the requirements listed here. For example, the embodiment described above can of BitmapData to create different combinations and podnominatsii described features and/or combinations and podnominatsii few more signs described above. In addition, the logical chain, illustrated in the accompanying drawings and/or described herein does not require a specific procedure, which is shown, or sequential order, to achieve desirable results. Within the scope of the following claims claims other choices are possible realization or implementation.

1. Hydraulic system, comprising: a rotor Assembly, which has axial symmetry about an axis of rotation and is located upstream end of the rotor; a brace turbine is located within at least part of the rotor Assembly, and a brace turbine includes an inlet opening brace of the turbine and the outlet of the bandage of the turbine, while the outlet of the bandage turbine includes many elements of the mixer shroud of the turbine and has a non-circular cross section; and a brace ejector is located within at least a portion of the bandage of the turbine, and a brace ejector includes an inlet opening brace of the ejector and the outlet band ejector.

2. Hydraulic system according to claim 1, in which the many elements of the mixer shroud of the turbine is located asymmetrically relative to the plane passing through the axis of rotation, and at least one of the elements of the mixer strip ejector with the characteristics of arisugawa lower velocity side of the plane, passing through the axis of rotation is larger than at least one of the elements of the mixer shroud of ejector characterized by higher velocity side of the plane passing through the axis of rotation.

3. Hydraulic system according to claim 1, additionally containing a Central body around which rotates the rotor Assembly.

4. Hydraulic system according to claim 3, additionally containing a baffle, which is located in front of the main body and form which provides inertial separation of debris from the water facing side of the rotor.

5. Hydraulic system according to claim 3, in which the Central body contains located downstream end extending from the Central body toward the outlet bandage turbine and located downstream end contains one or more elements of the mixer.

6. Hydraulic system according to claim 3, in which the Central body has a Central through cavity.

7. Hydraulic system according to claim 3, additionally containing a stator ring with the stator blades arranged around the Central axis of the body, and the rotor Assembly is located downstream of the stator rings.

8. Hydraulic system according to claim 1, in which the inlet of the band ejector is asymmetric.

9. Hydraulic system according to claim 1, in which the output of the second hole band ejector contains many elements of the mixer strip ejector.

10. Hydraulic system according to claim 9, in which many elements of the mixer strip ejector asymmetric with respect to a plane passing through the axis of rotation, and one or more elements of the mixer shroud of ejector characterized by lower velocity side of the plane passing through the axis of rotation are greater than one or more elements of the mixer shroud of ejector characterized by higher velocity side of the plane passing through the axis of rotation.

11. Hydraulic system according to claim 1, in which the rotor Assembly includes a rotor hub, the outer ring of the rotor and a first set of radially oriented rotor blades located between the wheel hub.

12. Hydraulic system according to claim 1, in which the inlet of the shroud of the turbine has a non-circular cross-section.

13. Hydraulic system according to claim 1, in which the length of the bandage of the turbine is equal to or smaller than the maximum external diameter of the brace turbine.

14. Hydraulic system according to claim 1, additionally containing a second band of the ejector, which is located inside at least a portion of the bandage of the ejector, and the second brace ejector includes an inlet opening of the second brace of the ejector and the region of the outlet of the second brace of the ejector.

15. The hydraulic system 14, in which the area of the outlet ban the ven ejector contains many elements of the mixer strip ejector.



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: unit is intended to be used at derivational and reservoired HPP with inconsiderable vibration of after-bay level with wide ranges of water head and flow rate. Lower end of vertical shaft of the unit with operating spherical surface is borne against the centre plate. Cone-shaped tray is rigidly attached to the shaft and impeller. Outlet tubes with variable and fixed cross section area are tangentially attached to the above cone-shaped tray. One end of bent vanes is fixed in the guide vanes in external rim and the opposite end is attached to the rim which envelops the shaft. Vanes are made at a tangent to outlet section plane. Upper rib of vane is oriented in radial plane and inclined from internal rim to external rim, and lower rib is oriented horizontally. Seal of the impeller consists of two flexible elastic rings with the chute profile the bottom of which faces the top. Some sides of those are tightly attached to the sealed parts and the opposite convex sides contact each other. Centrifugal water flow regulator includes balancing levers, rods and a slide on the unit shaft, and it is arranged in protection casing in the flowing water flow.

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FIELD: power engineering.

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FIELD: power engineering.

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7 cl, 2 dwg

FIELD: engines and pumps.

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7 cl, 6 dwg

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The invention relates to energy, namely heat engines that convert the kinetic energy of the expanding gases from the burning fuel into mechanical work

FIELD: power engineering.

SUBSTANCE: run-of-river pumping hydraulic power plant comprises a hollow shaft 1, double-wing blades 20 of sail type, joined with the shaft 1 with the help of carriers 4, displacement pumps of double action. On the axis 4 of double-wing blades 20 there are levers 6, hingedly joined by means of traction bars 8 with a crosspiece 9 at the end of the pump stem. The discharge chamber 16 of pumps by means of pipe sections 17 is hydraulically connected with a hollow shaft 1. Double-wing sail-type blades 20 of durable thick hydrophobic cloth have larger length compared to the axis 5 of blades 20.

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FIELD: power engineering.

SUBSTANCE: power plant for conversion of energy of air or water flow currents comprises a power takeoff shaft and a wing or an airfoil section kinematically connected to it. The power takeoff shaft is arranged in the form of a crankshaft. The crankshaft is equipped with a journal with sides and two L-shaped levers. Each lever with its one arm is rigidly connected to an axis of rotation for power takeoff, and with the other arm - to the appropriate side of the journal. The wing or the airfoil section is connected to this crankshaft by means of slings. The rear edge of the wing via bearings is connected with slings to the axis of the crankshaft journal, and the front edge of the wing - via bearings to coaxial arms of L-shaped levers.

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8 dwg

FIELD: power engineering.

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EFFECT: development of a plant capable of fuller usage of a tidal cycle for energy generation.

16 cl, 7 dwg

FIELD: power engineering.

SUBSTANCE: mechanism of water flow energy conversion comprises energy receivers arranged on a rigid frame in the form of rectangular planes. These planes are covered with a water-impermeable material. Energy receivers are installed inside a body and are connected to two centres of rotation. One of rotation centres with the help of a crosspiece and a shaft is joined to ends of energy receives via axes. These axes at one side are rigidly connected to ends, and at the other end are joined with a ring. The ring centre of rotation is displaced relative to the crosspiece centre of rotation. The ring is movably joined with a body by means of rollers fixed on body walls. Whenever a ring rotates, energy receivers make circular movements, and angle of their inclination to the flow remains unchanged. Movement against the flow takes place in an air medium.

EFFECT: invention makes it possible to simplify mechanism design.

3 dwg

FIELD: engines and pumps.

SUBSTANCE: every load-bearing element 5 of engine for fluid power utilisation is arranged to reciprocate in guides 3 on one of openings 4 in carcass 2, along carcass lengthwise sides. Elements 6 for fluid to act on are made up of hydrodynamic profile wings, each being fitted on axle 7 of said element 5 to rotate on axle 7 for interaction with fluid flow. Means for carrying wing position is made up of wing turn limiters 8 arranged in symmetry on lengthwise side of carcass 3. Aforesaid elements 5 are coupled by articulated levers 10, 11 to shift elements 5 by amount selected from the condition that with element 5 staying in one of extreme positions, another element 5 coupled therewith stays in one of intermediate positions.

EFFECT: higher engine efficiency, reliability and simplified design.

FIELD: power engineering.

SUBSTANCE: riverbed hydraulic power plant comprises an impeller installed on vertical stands 1 of a base 2 and comprising a shaft 3 with radial drivers 6 and rectangular blades 8, a multiplier with a shaft and a generator. The upper part of rectangular blades 8 is installed hingedly on fluoroplastic bushings at the ends of drives 6. In the side ends of the lower part of the blades 8 there are rollers 9 that roll in guides of -shaped form of fixed sides 10 that are bean-shaped. Guides in the front part have a break or are made as closed with a transition section from the horizontal position of the blades 8 into the vertical one. Blades 8 are made of polymer material. The multiplier's shaft is made vertical.

EFFECT: simplified design of the riverbed hydraulic power plant with higher reliability of operation and increased capacity due to serial connection of hydraulic power units.

2 cl, 8 dwg

FIELD: power industry.

SUBSTANCE: hydraulic power device includes many blades 21 located at least partially in water flow 23, which are brought into rotation with this water 23. Blades 21 are located along drive shaft 5 with offset relative to each other in circumferential direction and made in the form of deflectors having the shape of propeller. Device is equipped at least with one generator 3 for generation of electric energy, which is connected to drive shaft 5. Position of blades 21 is adjustable so that setting angle of blades along drive shaft 5 can be changed from blade to blade. Gap between blades in longitudinal direction of drive shaft 5 is adjustable.

EFFECT: creation of hydraulic power device compatible with environment and having simple design and easy installation; at that, being effective at varying water supply conditions.

22 cl, 23 dwg

FIELD: power industry.

SUBSTANCE: underwater river-run hydroelectric power plant includes housing 1 with convergent supply and divergent discharge water passages, working chamber 4 with impeller placed in it. Working chamber 4 is toroidal-shaped. Impeller is made in the form of circular screw 5. The latter is kinematically connected in series to carrier 7, multiplying gear 8 and electric generator 9, which are arranged in air dome 6 located in central part of working chamber 4.

EFFECT: increasing efficiency due to increased torque moment of impeller shaft when obtaining electric power as a result of conversion of kinetic energy of water flow passing through river-run power plant irrespective of seasonal state and economic belonging of water reservoir.

2 dwg

FIELD: power industry.

SUBSTANCE: hydraulic turbine of immersion type includes rotor 20, housing-stator that is integrated into rotor 20 and electricity generating means. Rotor 20 has outer rim 22 that encircles the blades 21. There is one or more floating chambers 60 located in outer rim.

EFFECT: rotor weight reduction for floating obtaining.

6 dwg

FIELD: power industry.

SUBSTANCE: hydroelectric power generation method involves actuation of magnets 2 relative to windings 3 of insulated current-conducting wire under action of energy of water flow supplied via water conduit 1 and stress relief from windings 3. In pulse mode water pressure in water conduit 1 is changed, pulsation of water conduit 1 walls is induced and magnets 2 installed on or in walls of water conduit 1 are brought into radial back-and-forth movement so that field of magnets 2 can influence on windings 3. Electric power generation device includes water conduit 1, windings 3 from insulated current-conducting wire, movable magnets 2 for action on 3 and assembly for stress relief from windings 3. Device is equipped with dart valve 4 to provide pulsations of walls of water conduit 1. Magnets 2 are made of elements movable relative to each other and assembled in rings and together with windings 3 are installed in alternating sequence throughout the length of water conduit 1 the walls of which are made from elastic-resilient material.

EFFECT: invention is aimed at creating simple and non-capital-intensive electric power generation method at minimum environmental damage for adjacent territories.

2 cl, 2 dwg

FIELD: power engineering.

SUBSTANCE: wave-activated power plant comprises an energy converter including a system of gears enclosed into a body fixed on a support above the water surface capable of rotation around the vertical axis, a lever, which is connected with its one end to the gear system via a mechanism of single-sided rotation, and with the second one - to a cylindrical float. The float is equipped with a wave tail unit for alignment along with direction of waves and freely rotates on the lever axis, compensating variances of wave forces at the float ends. A generator is fixed on the support above the water surface and is connected to the energy converter.

EFFECT: invention makes it possible to align the float along the direction of waves and to more efficiently convert the energy of sea waves.

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