DE102010045801A1 - Device for producing electrical energy from rotary movement of rotor element utilized in e.g. wind power plant, has standard container frame in which individual rotor elements are provided and connected with generator for power production - Google Patents

Abstract

The device (10) has a standard container frame (11) in which a module (12) is arranged as a support and transport structure. Individual rotor elements (14) are provided in the module within the container frame over a frame (13) and connected with a generator for power production. A body with polygon cross-section is formed in a center point of a rotation body. Openings are provided in a base plate and/or a head plate and in an area of a concave section of a flow element. A flow guide element (15) includes flow guide bodies made of plastic i.e. hard foam.

Description

The invention relates to a device for generating electrical energy from a rotational movement of at least one driven by flow of a flowing medium rotor element, wherein the rotor element has a vertical axis of rotation on which at least one rotary body is provided, the rotor element is connected to a generator for generating electricity, and the rotor element is arranged in a support structure.

Flowing media that are relevant here are either flowing gases, the air being the preferred medium, and liquids, with liquids flowing in liquids being preferred in rivers or in the sea.

Electrical energy from flowing media, in particular wind, is obtained, for example, by wind power plants, which have a vertical tower, at the upper end of which a rotatable nacelle is arranged. The nacelle has a rotor which is connected via a horizontal axis with a generator. The rotors usually have three wings. Such wind turbines are provided with high costs and high space consumption. Furthermore, they have the disadvantage of their size and the size of the rotors that they produce drop shadows and noise. In addition, with rotors and rotation axes a very high manufacturing precision is necessary, which goes hand in hand with high production costs. Furthermore, the size of the facilities (tower hub heights> 100 m, wing heights> 30 m), a large logistical effort for transport to the installation site and for the actual installation is necessary. Due to the ever increasing towers, it is also necessary to provide special mechanical infrastructure (cranes, etc.), which also increases the construction costs of these facilities. Furthermore, the land use increases due to the ever-increasing towers of wind turbines, as certain distance surfaces between the plants must be complied with for safety reasons and from the flow of the rotors. Furthermore, the cost of dismantling after exceeding the life expectancy of horizontal wind turbines increase. In addition, it is economically possible only in certain places to build such wind turbines. Since such wind turbines have been built for long periods, the best places to build such facilities are already essentially built. For this reason, it is now going to be built offshore such facilities, which is associated with additional logistical problems and increased construction costs.

It has been known for some time that electrical energy can be generated even with rotational bodies which have vertical axes. Such a large wind turbine is in DE 103 53 118 A1 disclosed. Here, in a tower having a ring structure, various rotation elements are provided which have a vertical axis of rotation, and each taken separately connected to a generator. Even with such an approach, the problem is that large surface areas are necessary and high production costs are to be expected, since again operated with large rotors.

For reasons of consideration to provide easier to transport and to build facilities reveal DE 102 45 078 31 and EP 1 498 604 A1 Wind turbines that are transported in a container that simultaneously forms the foundation of the installation at the place of installation. On the container will then after DE 102 45 078 31 a horizontal wind turbine, and in EP 1 498 604 A1 built a vertical wind turbine. With both considerations in turn, one rotating body per unit is used to produce a higher power range with respect to the generator. Furthermore, here too considerable construction effort is necessary to set up the facilities on site.

Out US 2009/0035134 A1 A vertical axis wind turbine is known in which a rotor element in the form of two wings arranged at right angles to each other is provided on a vertical axis which is provided in a frame. The axis of rotation is connected to a generator. As a reason for the construction of this system, it is stated that, because of the fact that wind can be converted into rotational motion from various directions, an optimum yield in the generation of electrical energy can be achieved. A disadvantage of this device is that the rotation body, which form the rotation element, have a complex structure and the device is indeed portable, but this can only be done in the disassembled state, so that a complex structure on site is necessary. Furthermore, the complicated structure of the individual rotation body is error-prone.

Out DE 20 2008 010 395 U1 discloses a fluid power plant having a rotating roller-type rotor including a plurality of rotor blades. The whole is arranged in a housing which is rotatably mounted on a mast. The housing has flow guide elements, which allow the flowing medium to flow optimally toward the rotor. As flow media both liquid and gaseous media are provided. In operation, the outer housing aligns with the direction of the flowing medium and thus allows optimum flow. The roller-like Rotor comprises a head and a foot plate, which are connected by wing-shaped rotating body and in the middle have a round axis of rotation.

The invention has for its object to provide a power generation plant, which is easy to transport and build, which has a low space consumption, is low to manufacture, and can be used in a variety of places.

Another object of the invention is to improve the efficiency of a rotary body and a flow guide.

With regard to the device, the object according to the invention is achieved in that the support structure is a module in which at least two rotor elements are provided, that the module is provided in a standard container frame as a parent support and transport structure, and that the rotor elements within the container frame for energy can be flowed are.

The advantage here is that a complete unit is created in this way, which, as it is, is transportable. Furthermore, it is possible, with different large standard container frame, to arrange one or more modules in this. Due to the defined size of the container frame, a low space consumption is given. Furthermore, several modules are stackable, as this is made possible by the frame load capacity. Due to the defined size of the container frame a diverse site is providable. These can be house roofs as well as fallow areas or even areas where other wind turbines can not be installed due to construction or usage. By providing a plurality of rotor element, a redundancy is created, which makes it possible to continue to produce energy even with failure of a rotor element with reduced power.

A teaching of the invention provides that the module is removable from the container frame, and can be installed on this. This special form of use enables a combination of energy production and, for example, living area in the form of the container. Furthermore, it is particularly preferred that the module has the internal dimensions of a standard foot container. In this way it is possible to arrange a corresponding number of modules in the other standard container sizes 20 and 40 feet.

A further teaching of the invention provides that at least one rotor element, preferably two or more rotor elements, is provided in a frame, wherein the frame is arranged in the module, and is designed so that it can be removed from the module. Such an arrangement makes it possible to remove the frames during operation of the unit for maintenance and repair purposes directly from the module and reinsert. Furthermore, the redundancy is increased by increasing the number of rotor elements per frame. Due to the large number of small rotor elements per module, the individual masses are reduced per rotor element, which improves the self-starting of the systems and reduces the net mass of each rotor element, thereby also the self-starting characteristics are improved.

Another teaching of the invention provides that the rotor elements consist of one or more rotational bodies, which are arranged one above the other. One possibility of the execution of such a rotor body is a Savoniusrotor. Such a rotary body will be described below. Such a type of rotating body is easy to manufacture proven rotors that improve the self-starting characteristics of such a system due to their stability at low mass.

A further teaching of the invention provides that each axis of rotation in a module is in each case connected to a generator, or that a plurality of axes of rotation apply to a generator. It is envisaged that within a module, providing 20 rotors with respect to a 10 foot standard container frame, a power of 10 to 20 kwh or even up to 40 kwh is producible. To provide a constant possible output power of such a device provides a further teaching of the invention that per module / rotor element / generator an element for energy storage and / or energy release is provided.

A further teaching of the invention provides that at least one flow guide element is provided for loading a rotor element or a plurality of rotor elements so that at least one flow guide element is provided per frame or per frame row, and / or that it is preferably a flow guide element, as described below will be described acts. By providing flow guide elements, a channeling of the flowing medium takes place in that two guide elements on the one hand form a channel, which possibly causes a strengthening of the actually prevailing flow velocity by the so-called cap and nozzle effects. Furthermore, it is advantageous if the flow elements are rotatably mounted, in particular if they are adjustable between a transport position and an operating position. The provision of the surfaces of the flow elements also makes it possible to visually enhance the device according to the invention dress up, or to use for example as an advertising space for urban installation.

Another teaching of the invention provides that the container frame is designed so that the inflow of the rotor elements through the flowing medium through the open structure of the container frame, ie without bottom, ceiling and / or side covers is possible. In this way it is possible to leave the module in the container frame for operation, and at the same time to ensure that the rotor elements are streamable from all sides, so that the alignment of the device with respect to the flow direction of the medium, in particular the wind direction omit can be.

In order to ensure weight savings for transport and operation, but also to enable sustainability of the manufacture and recycling of the device, a further teaching of the invention provides that the module, the frame, the axis of rotation, the rotor element, the flow guide and / or or the rotary body are made of wood. On the one hand, wood enables a sufficient stability of the products while at the same time providing a renewable raw material that is completely recyclable.

A further teaching of the invention provides that a device for generating electrical energy by solar energy is arranged on the container frame. Furthermore, it is advantageous to provide a plurality of container frames one above the other, for example connected by connecting means such as twistlocks, in order to increase the land use. Depending on the material of manufacture, it is possible to produce device combinations in which several modules are arranged one above the other in their container frame, wherein different flowing medium are provided as driving energy, for example, by one or more container frame in a flowing water, whereas the above be provided with wind provided units of the water body. In this combination, it is also advantageous to arrange on the uppermost container frame devices for the recovery of electrical energy from solar energy, which, in particular in connection with storage means, baseload power plants can be generated. Furthermore, it is possible to connect several devices according to the invention together to form a power plant.

The object according to the invention with regard to the rotary body is achieved by a rotary body for a rotary element for use in a device for generating electrical energy with a bottom plate and a top plate and at least three flow elements connecting the two plates in the form of a plate element, wherein the plate element has a concave portion which is an abutment for the inflowing medium, and has a guide portion which effects a deflection of a portion of the inflowing medium, wherein in the center of the rotation body has a body with a cross-section executed as a polygon, the polygon has an equal number of corners Anströmelemente are present, and a side surface of the polygon with a corresponding guide portion of the Anströmelements forms a channel through which the deflected portion of the inflowing medium is directed to another inflow element. In such a construction, on the one hand, an easily buildable and efficiently inflatable body of revolution is provided, which at the same time causes, due to the channel effect, an increase in the forwarded flow medium amount in terms of energy and speed, so that a more efficient utilization of the energy of the inflowing medium is achieved.

A further teaching of the invention provides that in the bottom plate and / or top plate openings are provided, which are preferably provided in the region of the respective concave portion of the Anströmelements, and / or preferably have a shape which at least partially with the shape of the concave Section matches. By providing the openings, it is possible to provide a deflection of the inflowing media not only from one guide element to the other, but also from one rotation body to the next. In this way, it is also possible to efficiently use currents that are not only horizontal, but also contain a vertical component.

Another teaching of the invention provides that the body coincides with the axis of rotation of the rotary element. Furthermore, it is advantageous that the bottom plate and / or top plate has a shape which is approximated to the Reuleaux triangle. This shape makes it possible to create an optimally sized base plate for the existing inflow elements and at the same time to make material savings compared with the full circle. In this way, the weight of the rotating body is optimized.

Another teaching of the invention provides that the bottom plate, top plate, Anströmelemente and / or the body are made of a wood material or wood composite material. The inflow elements alternatively also consist of plastic, V2A sheet metal and / or aluminum or other composite material. In this way, weight optimization is also made possible while providing renewable raw materials.

With regard to the flow guide, the object of the invention is achieved by a flow guide for installation in a device for generating electrical energy with a triangular-leaning wing shape, with one side facing the wind, and a corner facing the wind is rounded, and the other downstream the corner of the windward side is designed as a spoiler edge. In this way, a simple and efficient diversion of the flowing medium is effected without generating turbulence.

A further teaching of the invention provides that the flow guide element consists of at least one, preferably a plurality of flow guide bodies, which are applied to an axle element, preferably made of wood, and / or that the flow guide body consists of a plastic, preferably hard foam. Furthermore, it is advantageous that the longest side of the triangle faces the wind, and / or that the downstream corner has a concave recess having at its ends two tear edges, wherein a tear edge is the aforementioned tear edge of the windward side. In this way, a weight saving is made and at the same time enables a possible eddy-free outlet of the flowing medium both on the front and on the back of the flow guide.

The invention will be explained in more detail with reference to an embodiment in conjunction with accompanying drawings. Showing:

1 a schematic plan view of a device according to the invention,

2 a side view of the device according to the invention,

3 a first side view of a frame according to the invention,

4 a second side view of a frame according to the invention,

5 a schematic sectional view in plan view of a first embodiment of a rotary body according to the invention,

6 a schematic sectional side view too 5 .

7 a schematic sectional view in plan view of a second embodiment of a rotary body according to the invention,

8th a cut side view too 7 .

9 a sectional plan view of a flow guide according to the invention,

10 a side view of a flow guide according to the invention,

11 a side view of a device according to the invention with solar panel,

12 a plan view too 11 .

13 a first arrangement according to the invention, and

14 a second arrangement form according to the invention.

The device according to the invention 10 includes a container frame 11 , which in the present embodiment is a 10-foot container frame. Inside the container frame 11 is a module 12 arranged in which the individual rotor elements 14 over frame 13 are provided. The rotor elements 14 include rotational bodies 20 that go along a rotation axis 16 about suspensions 17 with the frame 13 are connected. At the bottom and / or top of the rotor element are generators 19 intended.

Along the outer surfaces of the container frame 11 are flow guide elements 15 provided with the module 12 are connected. In 1 are these flow guide 15 shown in operating arrangement. The flow guide elements 15 are about an axis of rotation (not shown) between this position and a transport position (not shown) folded down. in the transport position are the flow guide 15 in alignment with the outer edge of the container frame 11 ,

Between the flow guide elements 15 in operating position are flow channels 18 intended. Through these flow channels, the flowing medium (here wind or stream water) enters the device 10 and acts on the rotating body 20 the rotor elements 14 and offset the rotor elements 14 in rotation. At the bottom and top of the module 12 are guides 21 provided the frame 13 within the module 12 Arrange. This is in 3 and 4 shown.

A first embodiment of a rotary body 20 is in the 5 and 6 shown. It includes a base plate 22 and a headstock 23 , which have the shape of a Reuleaux triangle. At the respective corners 24 are bars 25 arranged the two plates 22 . 23 connect with each other. Between the plates 22 . 23 are plate-shaped inflow elements 26 intended. The onflow elements 26 include a concave section 27 and a substantially straight guide section 28 , In the middle of the rotation body 20 is a body 29 provided, which is also part of the rotation axis 16 is. The body 29 has a simultaneous triangular shape. A side surface 30 of the body 29 is essentially parallel with the lead section 28 of the pouring element 26 running so that between the page 30 and the lead section 28 a channel 31 arises. In the second embodiment according to 7 and 8th is inside the bottom plate 22 and the top plate 23 in the area of the concave section 27 an opening 32 intended. The shape of the opening 32 is essentially consistent with the concave section 28 match. The openings in the bottom and top plate serve as a channel 33 through which flowing medium can pass from a body of revolution into the body of revolution above or below it.

The flow guide 15 consists of several Strömungsleitkörpern 34 together. A flow guide 34 is in 9 and 10 shown. The flow guide 34 has a substantially triangular shape. The longest side 35 of the triangle represents the windward side of the flow guide. The tip 36 is rounded, and facing the flow medium as the first point of contact. The adjoining shortest side of the triangle 37 serves as a guide surface for the next downstream flow guide. Their end corner 38 is also rounded. The backside 39 of the flow guide abuts in a concave area 40 with the longest side 35 the Strömungsleitkörpers together, the corresponding corner 46 form. The concave area 40 has a first spoiler edge 41 and a second spoiler edge 42 on. The tear-off edge 41 represents the endpoint of the longest page 35 and the trailing edge 42 the end point of the back 39 dar. The flow guide 34 has a recess in the middle 43 in which a rod-shaped element 44 is inserted, on which the flow guide 34 be placed, and so the flow guide 15 form.

11 to 14 show various forms of use of the device according to the invention 10 , It is in 11 and 12 the combined use of the device according to the invention 10 with a solar panel 45 shown. In 13 are several devices 10 via connecting means (twist locos, not shown) arranged one above the other. At the top is also a solar panel 45 intended. In 14 is an analogue construction too 13 to see, with only the top two devices 10 as a wind power plant, and the lowest device 10 is provided as a flow power plant in running water.

LIST OF REFERENCE NUMBERS

10

contraption

11

Container frame (10 foot containers)

12

module

13

frame

14

rotor member

15

flow guide

16

axis of rotation

17

suspension

18

flow channel

19

generator

20

body of revolution

21

guide

22

baseplate

23

headstock

24

corner

25

Rod

26

incident-flow

27

Concave section

28

guide section

29

body

30

page

31

channel

32

opening

33

channel

34

flow guide

35

Longest page

36

top

37

Shortest page

38

corner

39

back

40

Concave area

41

First tear-off edge

42

Second tear-off edge

43

recess

44

element

45

solar panel

46

corner

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10353118 A1 [0004]
• DE 1024507831 [0005, 0005]
• EP 1498604 A1 [0005, 0005]
• US 2009/0035134 A1 [0006]
• DE 202008010395 U1 [0007]

Claims (17)

Device for generating electrical energy from a rotational movement of at least one rotor element driven by the flow of a flowing medium ( 14 ), wherein the rotor element ( 14 ) a vertical axis of rotation ( 16 ), on which at least one rotational body ( 20 ) is provided, the rotor element ( 14 ) with a generator ( 19 ) is connected to the power generation, and the rotor element ( 14 ) is arranged in a support structure, characterized in that the support structure is a module ( 12 ), in which at least two rotor elements ( 14 ) are provided that the module ( 12 ) in a standard container frame ( 11 ) is provided as a parent support and transport structure, and that the rotor elements ( 14 ) within the container frame ( 11 ) can be flowed to the energy. Device according to claim 1, characterized in that at least one rotor element ( 14 ), preferably two or more rotor elements ( 14 ), in a framework ( 13 ), the frame ( 13 ) in the module ( 12 ) and is designed to be removed from the module ( 12 ) is removable. Device according to claim 1 and 2, characterized in that each axis of rotation ( 16 ) in a module ( 12 ) each with a generator ( 19 ), or that several axes of rotation ( 16 ) a generator ( 19 ). Device according to one of claims 14 to 16, characterized in that at least one flow guide ( 15 ) for acting on a rotor element ( 14 ) or multiple rotor elements ( 14 ), that preferably per frame ( 13 ) at least one flow guide ( 15 ) is provided, and / or that it is preferably a flow guide ( 15 ) according to claim 14 or 15. Device according to one of claims 1 to 4, characterized in that it is in the rotary body ( 20 ) is a savonius rotor, preferably according to one of claims 9 to 13, and / or that per axis of rotation ( 16 ) several rotational bodies ( 20 ) are provided. Device according to one of claims 1 to 5, characterized in that the container frame ( 11 ) is designed so that the flow of the rotor element ( 14 ) by the flowing medium through the side walls of the container frame ( 11 ), which is preferably designed to be open on all sides, takes place. Device according to one of claims 1 to 6, characterized in that at least one element for energy storage and / or energy release is provided. Device according to one of claims 1 to 7, characterized in that the module ( 12 ), the frame ( 13 ), the axis of rotation ( 16 ), the rotor element ( 14 ), the flow guide ( 15 ) and / or the rotational body ( 20 ) are made of wood. Device according to one of claims 1 to 8, characterized in that on the container frame ( 11 ) and / or on the module ( 12 ) a device for generating electrical energy by solar energy ( 45 ) is arranged. Rotary body for a rotary element for use in a device for generating electrical energy with a bottom plate ( 22 ) and a head plate ( 23 ) and with at least three flow elements connecting the two plates ( 26 ) in the form of a plate element, wherein the plate element has a concave portion ( 27 ), which is an abutment for the inflowing medium, and a guide portion ( 28 ), which causes a deflection of a part of the inflowing medium, characterized in that in the center of the rotary body, a body ( 29 having a polygon cross-section, the polygon has an equal number of corners, such as inflow elements ( 26 ) are present, and that a side surface ( 30 ) of the polygon with a corresponding leading section ( 28 ) of the forcing element ( 26 ) a channel ( 31 ), through which the deflected part of the inflowing medium to another inflow element ( 26 ) is directed. Rotary body according to claim 10, characterized in that in the bottom plate ( 22 ) and / or top plate ( 23 ) Openings ( 32 ) are present, which preferably in the region of the respective concave section ( 27 ) of the forcing element ( 26 ) are provided, and / or which preferably have a shape which at least partially with the shape of the concave portion ( 27 ) matches. Rotational body according to claim 10 or 11, characterized in that the body ( 29 ) with the axis of rotation ( 16 ) of the rotary element ( 14 ) matches. Rotary body according to one of claims 10 to 12, characterized in that the bottom plate ( 22 ) and / or top plate ( 23 ) has a shape that approximates the Reuleaux triangle. Rotary body according to one of claims 10 to 13, characterized in that the bottom plate ( 22 ), Top plate ( 23 ), Inflow elements ( 26 ) and / or the body ( 29 ) are made of a wood material or wood composite material. Flow guiding element for installation in a device for generating electrical energy with a wing shape leaning against a triangle, wherein one side ( 35 ) facing the wind, and a corner facing the wind ( 36 ) rounded off, and the further downstream corner ( 46 ) of the windward side as a spoiler edge ( 41 ) is executed. Flow guiding element according to claim 15, characterized in that the flow guiding element ( 15 ) of at least one, preferably more, flow guide bodies ( 34 ), which are applied to an axle element, preferably made of wood, and / or that the flow guide body ( 34 ) consists of a plastic, preferably rigid foam. Flow guiding element according to claim 15 or 16, characterized in that the longest side ( 35 ) of the triangle facing the wind and / or that the downstream corner ( 46 ) a concave recess ( 40 ) having at their ends two edges ( 31 . 42 ) having.

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