DE102005043268A1 - Wind turbine, has wind rotors, arranged on top of each other, whose horizontally lying axle axis is rotated around pipes in pivot point on axis of pipes in each wind direction by horizontal circular bearing - Google Patents

Abstract

The turbine has wind rotors that are arranged on top of each other, and a support construction with rims that are formed by pipes. Horizontally lying axle axis (3) of the rotors is rotated around the pipes in a pivot point on an axis (2) of the pipes in each wind direction by a horizontal circular bearing (6). The rims pipes are predominantly supported or drawn below or above each pivot point. Rod braces (14) or tension belts (15) are arranged outside of a spatial sweep area of rotor blades or within a rotation surface from rear edges of rotor blade surfaces.

Description

to development higher Wind layers and thus higher Wind speeds are for larger wind turbines higher z.T. also tower-like constructions required.

was standing the technique is the Honnef'schen United constructions but very expensive Turning mechanisms have as well as suspensions and basic construction mostly with different design elements, which represents a very material and detail intensive construction.

By the present invention, wherein each of the illustrated Principle arranged wind rotor to a continuous, approximately vertical provided, also the supporting structure of the plant serving pipe, can be twisted in any wind direction, can be more stable, more cost-effective and plant structures equipped with a broader insurrection base be realized.

For example, the main force profile is found predominantly in the edge tubes acting as outer supports ( 1 ) instead of.

The horizontal pivot bearing for each wind rotor ( 6 ) is predominantly between an upper and a lower attachment point ( 16 ) of trusses ( 14 ) and tension straps ( 15 ) on the edge tube ( 1 ) arranged.

It allows 360 ° rotation.

• a) Rotorwelle (3) geht durch den Drehpunkt (8) Dieser Fall ist in Anspruch 2 als einfacher Sonderfall behandelt.
• b) Rotorwelle (3) hat einen dezidierten räumlichen Abstand zur Achse der Rotorwelle. Dieser Fall ist im Hauptanspruch eingeschlossen und hinsichtlich der Abstandsformel nur vektoriell (siehe unten) darzustellen:

The rotation of the wind rotor shaft about the fulcrum ( 8th ) two cases can be distinguished:

• a) rotor shaft ( 3 ) goes through the fulcrum ( 8th This case is treated in claim 2 as a simple special case.
• b) rotor shaft ( 3 ) has a decided spatial distance to the axis of the rotor shaft. This case is included in the main claim and is only vectorial in terms of the distance formula (see below):

at any orientation of the shaft axis of the rotor after the Wind allowed Of course, the rotor blades nowhere queue. Furthermore have to additionally Levels of tolerance and distances because of the bending of the rotor blades considered become.

The unsatisfactory storage capacity of electricity often criticized as a disadvantage of wind energy can in part be compensated for by the subject-matter of claim 4 according to the invention in that 1 ) Water tanks are arranged, which serve as a reservoir similar to a pumped storage plant.

1 shows an exemplary embodiment of a wind turbine with staggered edge tubes. In this frontal perspective, vertical edge tubes ( 1 ) arranged in two rows, in a direction opposite to the main wind direction ( 9 ) windward ( 36 ) and a leeward series. The associated wind rotors are leeward at the same radius ( 18 ) shown a little smaller. The attached to the respective upper ends of the edge tubes wheel hubs ( 29 ) do not follow the described laws due to the continuous edge tubes.

2 shows the floor plan oa wind turbine with the windward side of the main wind direction ( 9 ) arranged edge tube row ( 36 ) and the leeward series ( 37 ).

In addition to the outer equator of the spatial Überstreifbereichs as Kugelauschnittring ( 13 ) of the wind rotors around the edge pipes are the truss struts connecting the edge pipes ( 14 ).

3 shows the vertical section of a single wind rotor with the geometric boundary conditions of its free rotation on all sides.

der äußeren kugelförmigen Begrenzungsfläche des räumlichen Überstreifbereichs (10) des Windrotors. Ihr Äquatorkreis (28) hat somit den Radius d. werden nun Streben oder Zuggurte auf Berührung untersucht, so ist ebenso noch ein Abstandspielraum (21) dazuzurechnen.Starting from a vertical to moderately inclined edge tube (max 25 ° -30 °) lies on its axis ( 2 ) the fulcrum ( 8th ) around which the shaft axis ( 3 ) of the wind rotor can be swiveled or rotated by 360 °. Around the inclined edge tube, the rotor blades ( 5 ), the rotor blades must be driven on the basis of the illustrated critical section with a corresponding impact angle ( 25 ) to the axis ( 3 ). It should also be noted that an additional spatial distance ( 21 ) is maintained to accommodate deformations for safety's sake. In order to determine which movement space for the pivoting in all wind directions of construction elements such as truss struts ( 14 ) or tension straps ( 15 ) must first be kept clear of the level ( 19 ) originating from the rotor blade tips ( 27 ) is overlined. The distance (a) of this plane from the pivot ( 8th ) as the catheter of a right triangle with the other catheter as the radius (r) of the rotor ( 18 ) gives the spherical radius as hypotenuse (d)

the outer spherical boundary surface of the spatial override area ( 10 ) of the wind rotor. Your equator circle ( 28 ) thus has the radius d. If struts or tension straps are examined for contact, there is also a margin of discretion ( 21 ).

In addition, the shows 4 as an overview of the given height of the rotor blade tips ( 27 ) fixed upper ( 11 ) and lower edge ( 12 ) of the ball cutout ring.

The inner boundary surface ( 23 ) forms the surface of revolution with the generating line as trailing edge of the rotor blades and the vertical axis of rotation ( 24 ) with the fulcrum ( 8th ).

Of course they are from this area and the top and bottom margins as well to consider the clearance margins.

wobei vereinfachend angenommen ist, dass die Exzentrizität e₂ senkrecht aus der Zeichenebene heraus angesetzt ist (y-Achse) und der Abstand a₁ ein eindimensionaler Rechtswert (auf der x-Achse) ist. Die örtliche z-Achse zeigt in den 3 und 4 senkrecht nach oben.For technical reasons, should the two bearings ( 7 ) of the horizontal rotor axis ( 3 ) not on a straight line through the fulcrum ( 8th ), z. B. when the rotor axis is passed outside the edge tube and is eccentrically rotated around the fulcrum, the conditions are only vectorial represent:

it being assumed for simplicity that the eccentricity e _{2 is set} perpendicularly out of the plane of the drawing (y-axis) and the distance a _{1 is} a one-dimensional right-hand value (on the x-axis). The local z-axis points into the 3 and 4 vertically upwards.

This Approach is included in its generality in the main claim.

The 5 shows a particularly powerful u. economy-oriented application example of the invention and its further inventive design.

Three on molded foot plates ( 33 ) Asked edge pipes ( 1 ) are arranged in plan at the tips of an equilateral triangle.

The edge tubes are tent-like slightly inclined to each other and each other in a connection node ( 30 ) If necessary, by means of additional connecting components at least to longitudinal u. Shear forces firmly connected.

Because of the high altitude - up to the node ( 30 ) are in this example ( 5 ) up to 6 wind rotors arranged one above the other at the edge pipes - large forces have to be mastered, the edge pipes are slightly bent outward so that this direction would be the preferred direction of buckling. However, this is secured by two-way planing tensile straps secured between each wind rotor at each edge tube.

The Buckling direction perpendicular thereto, d. H. in the tangent direction of a circumference of the foot triangle is determined by the clamped angle of the Zuggurtrichtungen in plan hedged.

There the slightly bent edge tubes are pretensioned with the top tie-down straps be, results from the fixed fixed form no way to change and thus no instability.

Also is the possibility The twisting of the drum thereby prevents all restraints from coming on the absolutely stationary, unyielding feet of the edge tubes converge.

These Arrangement still has the additional Advantage on that the big ones Tensile loads of the tension straps due to the weight of the edge tubes can be recorded without additional other anchorages.

This also applies to the absorption of the horizontal component given by the tensile forces to, for the weight load of the pipes activates the frictional force to be absorbed can.

The via the crossing node ( 30 ) according to obliquely each protruding edge tubes can be extended accordingly far, since each edge tube in itself by the nature of the crossing node ( 30 ) holding and storage a clamping at least in the quality of a continuous carrier or stiffer.

Therefore can because of the relatively high sum of the Einspannungswirkungen a practically horizontal mutual suspension of the edge tubes whose possibility significantly increase to a further overhang.

In an offshore placement, the central point of attachment of the tension straps ( 35 ) on the pull arm ( 34 ) for corrosion protection reasons above the water level ( 32 ) arranged.

The 6 and 7 show two possibilities of a mechanical power transmission to a wave strand lying within the edge tubes ( 38 ) by means of a turning around the edge tubes turntable ( 41 ) with two rows of teeth.

1 Wind turbine with staggered edge tubes Frontal perspective

2 Wind turbine with offset edged pipes Floor plan

3 Arrangement of a single wind rotor with geometric boundary conditions of its free rotation on all sides vertical section

4 Arrangement of a single wind rotor with geometric boundary conditions of its rotation free after all series overview view

5 Tower-like wind turbine with 3 edge tubes Simplified series view and overview section

6 Mechanical energy transfer to Sammelreibreibstrang by means of recess by Kantenrohrwandung for gearwheel penetration

7 Mechanical energy transfer to Sammelreibreibstrang by carrying out a single drive shaft through the Kantenrohrwandung

1

edges pipes

2

Edge pipe axis

3

shaft axis the wind rotors

4

wind rotors

5

rotor Blatter

6

horizontal annular camp

7

double bearing the horizontal rotor axis

8th

pivot point

9

Prevailing wind

10

Spatial overripe area of the wind rotor

11

Upper Outer edge of the ball cutout ring

12

Lower Outer edge of the ball cutout ring

13

Outer equator of the Ball neck ring

14

Truss struts

15

tensioning straps

16

attachment points the truss struts or the drawstrings

17

lights spatial Distance possible Struts or drawstrings (d)

18

radius of the rotor (r)

19

swept Level of the rotor blade prizes

20

Distance (a) of the rotor blade spray plane to the pivot point ( 8th )

21

additional spatial Distance travel

22

ring

23

Ring inner side lateral surface

24

vertical axis of rotation

25

impact angle the rotor blades

26

Total impact angle of the rotor

27

Rotor blade tip

28

outermost Perimeter of the rotor blade tips on Äuqatorebene

29

rotor hub

30

intersection or midpoint of the envelope of the

edges pipes

31

crossing points the pull straps

32

any Water level at offshore location

33

stand

34

pulling arm

35

central Attachment point of the pull straps on the pull arm

36

edge pipe on the windward side of the prevailing wind

37

edge pipe on the lee side of the prevailing wind

38

Inlying shafting

39

axis of the internal shaft train

40

gear at the end of the shaft axis of the wind rotor

41

slewing ring with sprockets arranged in two directions

42

Shafting drive gear

43

horizontal slot opening

44

support rollers of the turntable

45

Konsollaschen for support rollers

46

Roller support bracket

47

gear

48

Slanted in the Edge tubes piercing transmission shaft

49

wall of the edge tube

50

Oblique hole through the wall

51

gear

52

approximately horizontal pull straps above the crossing knot

53

windward rotors level

54

leeward rotors level

Claims (10)

Wind turbine with superimposed rotors, characterized in that 1. the support structure several starting from the bottom, continuous approximately perpendicular edges ( 1 ), which are formed by tubes which take over substantial portions of the supporting forces. 2. the horizontal axes ( 3 ) of the wind rotors ( 4 ) can by means of a horizontal pivot bearing ( 6 ) around the continuous vertical or moderately inclined from the vertical edge tubes ( 1 ) in the fulcrum ( 9 ) on the axis ( 2 ) of the edging tube in each wind direction ( 9 ) to be turned around. 3. the edge pipes ( 1 ) predominantly below and above each pivot point ( 9 ) are supported or braced. 4. the truss struts ( 14 ) or the tension straps ( 15 ) outside the spatial override area ( 10 ) the Ro door leaves, which can be approximated as a ball ring, or are arranged within the surface of revolution of the trailing edges of the rotor blade surfaces. Wind turbine according to claim 1, dg, that 1. the horizontal axes ( 3 ) of the wind rotors are aligned with the axes ( 2 ) of the edge tubes in the fulcrum ( 9 ) to cut. 2. the clear spatial distances ( 17 ) of the individual bars ( 14 ) or the tension straps ( 15 ) from the fulcrum ( 8th ) are larger than

where r = radius of the wind rotors ( 18 ) a = clear spatial distance ( 20 ) of the plane covered by the rotor blade tips, ie that the individual rods ( 14 ) or pull straps ( 15 ) are arranged outside of a ball ring or within the surface of revolution of the trailing edges of the rotor blade surfaces. Wind power plant according to claims 1 and 2 dg, that the impact angle of the rotor blades is increased so far that a mutual inclination of the mutually spaced on the ground edge pipes ( 1 ) a mutual connection in a high-lying node ( 30 ) without points of contact. Wind turbine according to claims 1-3 dg, that the interior of the edge tubes ( 1 ) is used as the pumped storage volume. Wind turbine according to claims 1-4 dg, that the energy transfer from the rotor axis ( 3 ) via a gear transmission on each in an edge tube ( 1 ) parallel to it running wave strand ( 38 ) takes place at its lower end above the pedestal ( 33 ) A generator is arranged. Wind turbine according to claims 1-5 dg, that the gear transmission from a gear ( 40 ) on the axis ( 3 ) and a turntable ( 41 ) arranged in two directions sprockets, wherein one of the wind rotor shaft gear ( 40 ) and the other is a largely located within the edge tube gear ( 42 ) drives, with only the teeth and the outer part of the wheel disc through a small opening ( 43 ) the edge tube ( 1 ) penetrates and even sits on the vertical shaft strand and transfers the moment to this. Wind turbine according to claims 1-6 dg, that the gear transmission from a gear ( 40 ) on the axis ( 3 ) and a turntable ( 41 ) arranged in two directions sprockets, wherein one of the rotor shaft gear ( 40 ) and the other one outside the edge tube ( 1 ) lying gear ( 47 ) drives and its moment over a transmission wave ( 48 ), which the edge tube ( 1 ) each in a small hole ( 50 ) penetrates and by means of two further gears ( 51 and 42 ) transmits to the vertical shaft strand. Wind turbine according to claims 1-7 dg, that 1. at least three edge tubes ( 1 ) are mutually inclined and the feet ( 33 ) are on a roughly regular polygon in plan view, 2. the edge tubes in a node ( 30 ) approach or touch each other and by at least cross-u. longitudinal force transmitting components are connected. 3. the edge pipes ( 1 ) are bent slightly outwards. 4. the edge tubes are each held between each wind rotor by 2 Zuggurte, of which in each case one of the two comes to lie in the corresponding edge of the pipe intersecting adjacent fan surface. 5. the tension belts fan-shaped from one point ( 35 ) in the area of the foot point ( 33 ) and reach the attachment points ( 16 ) on the edge tubes. 6. the fan starting point ( 35 ) with the foot point ( 33 ) by means of a pull arm ( 34 ) is connected tensile strength. Wind turbine according to claims 1-8 dg that 1. the edge tubes over the node ( 30 ) protrude further up and 2. there are arranged further wind rotors. Wind power plant according to claims 1-9 dg, that the edge pipes each under a wind rotor in approximately horizontal direction by means of tension straps ( 52 ) are mutually suspended.