DE102015115562A1 - Tower for a wind turbine with a water reservoir of a pumped storage power plant, water storage tank of a pumped storage power plant and plant for energy production - Google Patents

Abstract

A tower (1) for a wind turbine has at least one tower section (3a) made of concrete, which forms a water reservoir of a pumped storage power plant. The at least one tower section (3a) is composed of a plurality of superposed annular concrete segments (7) to form horizontal joints (6), each concrete segment (7) being composed of at least two annular segment precast concrete elements (9) to form vertical joints (8) is, each having an outer side (10), an inner side (24) and an upper, a lower and two lateral contact surfaces (11, 12, 13). The precast concrete parts (9) each of a concrete segment (7) are interconnected by horizontal clamping means. A water storage tank (26) of a pumped storage power plant made of precast concrete parts (9) is composed of a plurality of stacked annular concrete segments (7) to form horizontal joints (6). Each concrete segment (7) is composed of at least two ring-segment-shaped precast concrete parts (9), each having an outer side (10), an inner side (24) and an upper, a lower and two lateral contact surfaces (11, 12, 13), and the precast concrete parts (9) each of a concrete segment (7) are interconnected by horizontal clamping means.

Description

The present invention relates to a tower for a wind turbine with at least one tower section made of concrete, which forms a water reservoir of a pumped storage power plant. Moreover, the invention relates to a water storage tank of a pumped storage power plant made of precast concrete and a plant for power generation with a wind turbine with a tower and with a pumped storage power plant with a water storage tank.

Wind power plants per se are known as well as pumped storage power plants in the prior art. A problem with wind power plants is always that the energy production is subject to strong fluctuations due to changing wind conditions. On the one hand, this can lead to overloading of the grids with high feed-in, while on the other hand too little energy is generated in poor wind conditions. Therefore, combinations of wind power plants with pumped storage power plants have already become known, by means of which excess energy can be stored and, if necessary, made available again.

The WO 2012/150027 A1 describes such a combination of a wind turbine with a pumped storage plant. At least part of the interior of the wind tower should serve as a water reservoir for the pumped storage power plant. The document also proposes to carry out the tower of reinforced concrete and to use the tower wall directly, without a separate storage shell, as a water reservoir. Further information on the structure of the tower wall are not given.

From the DE 10 2011 052 873 A1 is a arranged in a water pumped storage with a system of several storage caverns known. The document mentions that the storage caverns can be built from pre-stressed reinforced concrete segments with sealed joints. With regard to the sealing of joints is further described that these are designed as compression joints, wherein the seals are pressed by means of tendons. Details on the structure of caverns made of reinforced concrete segments are not given here either.

Object of the present invention is to propose a tower for a wind turbine with a designed as a water tank tower section and a water storage tank pumped storage plant, which can be produced in a quick and easy way. Furthermore, a corresponding plant for energy production should be proposed.

The object is solved with the features of the independent claims.

A tower for a wind turbine has at least one tower section made of concrete, which forms a water reservoir of a pumped storage power plant. In the proposed tower, the tower section is composed of a plurality of stacked annular concrete segments to form horizontal joints. Each concrete segment is formed with the formation of vertical joints of at least two, preferably three, juxtaposed, ring segment-shaped precast concrete parts. Likewise, the proposed water storage tank of a pumped storage power plant to form horizontal joints composed of several superimposed annular concrete segments, each concrete segment is in turn composed of vertical joints of at least two, preferably three, arranged side by side, ring segment-shaped precast concrete parts.

The ring segment-shaped precast concrete parts each have an outer side, an inner side and an upper, a lower and two lateral contact surfaces. The precast concrete parts of a concrete segment are only horizontal tensioning means, d. H. without the use of a grout or other fastener, connected together. Thus, in addition to the tensioning of the horizontal clamping means, no further steps are required for connecting the precast concrete elements to a concrete segment, which contributes to a simple and cost-effective installation.

The horizontal clamping means advantageously comprise at least one ring tensioning member guided in essentially horizontal clamping channels of the precast concrete elements. The ring prestressing means of the ring tendon, the precast concrete parts of the individual concrete segments can be connected to each other in a simple and very fast manner. At the same time a ring bias is generated in the concrete segments, so that the tower section or the water storage tank can withstand the water pressure easily. Since the ring tendons are guided in substantially horizontal clamping channels of precast concrete, they are also protected against corrosion and influences the stored water. It is therefore particularly advantageous if the precast concrete parts of the concrete segments are connected together only by the ring tendons.

Likewise, it is advantageous if the at least one ring clamping member in the clamping channels of the precast concrete elements is pressed with a grout is. The bias can be applied very evenly on the concrete.

In order to enable a simple prefabrication of the precast concrete parts and a quick construction of the tower or the water storage tank at the installation, it is also advantageous if the concrete segments each comprise at least two designed as equal parts precast concrete and at least one designed as a clamping part with a molded Spannlisene precast concrete. The production of precast concrete parts is facilitated by the fact that the common parts and the clamping parts can be produced in each case by means of the same formwork as standardized components. The at least one ring tendon is set tensioned on the Spannlisene. The Spannlisene is preferably integrally formed on the outside of the clamping parts, so that the ring tendons can be easily clamped from the outside and the armature of the tendons outside the water storage volume.

In the tower preferably the concrete segments are each composed of four precast concrete parts, while the water storage tank depending on the size and more than just four precast concrete parts can be provided. In each case, two of the precast concrete parts of a concrete segment are preferably designed as clamping parts and at least two ring tendons are guided over the circumference of the concrete segment. The tensioning of the ring tendons is thereby facilitated.

It is advantageous if the contact surfaces of the precast concrete slippery, d. H. unprocessed, and preferably untreated. A revision of the precast concrete parts in the precast plant or on site to achieve a smooth surface and compensate for tolerances of precast concrete, so is not required, which further simplifies the production of the water storage tank or water storage tank. For this purpose, the precast concrete parts are manufactured by means of exact formwork as Genauteile, in which the upper and lower contact surfaces are exactly plane-parallel to each other. Likewise, the lateral contact surfaces are exactly positioned to the upper and lower contact surfaces. Under "exactly plane-parallel" and "precisely positioned" is understood to mean a design with such small tolerances with regard to the flatness and position of the contact surfaces that no tolerance compensation measures are required any more. If the ring segments are made upright, it may be advantageous if the horizontal upper contact surface, which is the filling side of the concrete in the formwork, is ground.

It is also particularly advantageous if the height of the ring-segment-shaped precast concrete parts is less than the width thereof, wherein preferably the height is less than a third, preferably less than a quarter of the width. The precast concrete parts have in this case also due to the subdivision of the concrete segments in three or more precast concrete parts a size that easily allows a road transport. In addition, the comparatively small size of the precast concrete parts also makes it possible to produce them directly on site. It is particularly advantageous if the height of the ring segment-shaped precast concrete parts is less than 3 m, preferably less than 2.5 m.

In a tower with a tower section, which forms a water reservoir, it is furthermore advantageous if the concrete segments of the at least one tower section are connected to one another by vertical clamping means. The vertical clamping means preferably comprise vertical clamping members guided outside the concrete cross section. Such a tower section has a high stability and is able to absorb forces from the operation of the wind turbine in addition to the loads caused by the water pressure.

The vertical tendons preferably extend outside of the concrete cross section in the inside of the tower section arranged protective tubes and are preferably pressed in the protective tubes. When building the tower section, it is thus not necessary to align the clamping channels of precast concrete parts to each other and the tendons are protected against corrosion and the influences of the volume of water.

Furthermore, it is advantageous if a clamping piece is arranged on the at least one tower section which forms a water reservoir, wherein the vertical clamping members are clamped on the clamping piece. At the same time, the clamping piece forms a cover of the water reservoir and enables the comfortable tensioning of the tendons from there. In the foundation, the vertical tendons are preferably anchored looped, so that the foundation must be provided only with protective pipes for anchoring and at the same time can form the bottom of the reservoir. The protective tubes extend from the foundation of the tower preferably up to an upper side of the clamping piece.

In order to make the tower section watertight, an internal, circumferential sealing profile is advantageously arranged in the vertical joints and / or horizontal joints.

But it is also advantageous if in addition to the ring tendons and vertical tendons vertical and / or horizontal screw as vertical clamping means or as Horizontal clamping means are provided. The glands can serve as mounting aids.

If the fittings are provided as assembly aids, the precast concrete parts of a concrete segment can be assembled in advance to a concrete segment and handled as a component. Since the screw connections do not contribute to load transfer during operation, they can be dimensioned comparatively small and cost-effectively. The biasing force of the at least one ring tendon is so great that the biasing force of the horizontal fittings is largely eliminated. The glands can thus be removed after installation of the tower section. However, to save another step, the glands can also be left.

According to an advantageous development of the invention, a further tower section, in particular a further tower section made of concrete, is arranged on the tensioning piece. The clamping piece forms a kind of foundation for the other tower section. It is thus possible to make each tower section according to the requirements.

In order to be able to produce a water storage tank quickly and easily, it is furthermore advantageous if the concrete segments comprise at least one prefabricated concrete element designed as a closing part and at least one precast concrete element and one prefabricated concrete element as an end part, in addition to the precast concrete parts designed as identical parts and clamping parts. The lateral contact surfaces of the closing part each extend obliquely to the upper and lower contact surfaces, so that the closing parts are able to compensate for tolerances in the concrete segment. In the initial part or end part of each of the lateral contact surfaces is formed obliquely to the upper and lower contact surfaces. At the same time, the clamping parts can also be designed as closing parts, so that only a few different precast concrete parts are required.

Also, in the water storage tank, it is advantageous if the contact surfaces of the precast concrete parts are smooth and preferably untreated, since steps for a material-removing machining can be omitted and the sealing of the joints is facilitated.

To seal the joints in the water storage tank preferably in the vertical joints and / or the horizontal joints in turn a preferably inner sealing profile is arranged.

In the horizontal direction, the sealing profile is in turn preferably pressed by the ring tendons. However, it can also be provided additional horizontal fittings.

It is furthermore advantageous if the precast concrete parts of concrete segments arranged one above the other are connected to one another by vertical screw connections. Since only the water pressure acts on the water storage tank essentially, a prestressing of the concrete segments by means of vertical suspension members is not required, so that the vertical screw connections serve both for pressing the sealing profiles and the connection of the concrete segments.

In addition, it is advantageous if the water storage tank has a preferably integrally formed bottom plate, wherein between the bottom plate and a lowermost concrete segment only a circumferential sealing profile is arranged. This can only be pressed by the weight of the water storage tank.

Furthermore, it is advantageous both in the tower section and in the water storage tank when the vertical joints of two superposed concrete segments in the circumferential direction of the concrete segments are offset from each other, each one precast concrete part of an upper concrete segment of the two superposed concrete segments a vertical joint of an underlying concrete segment of the two overlapping concrete segments overlaps. The vertical clamping means produces a frictional connection in the horizontal direction, which bridges the vertical joint of the underlying concrete segment without the use of mortar. This further contributes to a simple and inexpensive installation. In addition, the tower section or the water storage tank is designed to be easy to dismantle.

The advantages of the described tower with a water reservoir and the water storage tank come in particular in a plant for energy production to fruition. The plant has at least one wind turbine with a tower with a water storage and at least one pumped storage power plant with a water storage tank. Preferably, the tower is arranged with the water storage within the water storage tank in the system, both together form an upper reservoir of the pumped storage plant. It is thus possible in an advantageous manner to increase the storage volume of the upper basin.

Further advantages of the invention will be described with reference to the embodiments illustrated below. Show it:

1 a tower of a wind turbine with a tower section made of concrete, which forms a reservoir, in an overview,

2 a schematic sectional view of the water storage forming tower section,

3 a ring segment-shaped precast concrete part for a tower section or a water storage tank in a front view from the inside,

4 the ring segment prefabricated concrete part of 3 in a plan view,

5 a trained as a water tank tower section with a concrete segment, which is composed of four ring segment-shaped precast concrete elements, in a plan view,

6 a prestressed with vertical tendons tower section of a plurality of superposed concrete segments in a broken, schematic sectional view,

7 a schematic plan view of a plant for power generation with a tower of a wind turbine and a water storage tank of a pumped storage power plant, and

8th a schematic, broken view of a water storage tank made of precast concrete.

1 shows a tower 1 for a wind turbine with a tower section designed as a water storage of a pumped storage power plant 3a concrete. The tower 1 has a foundation 2 on and is designed here as a hybrid tower. The tower shown 1 points next to the designed as a water tank tower section 3a made of concrete another tower section made of concrete 3b and a tower section 4 made of steel. The two sections 3b and 4 are by means of a transition piece 5 connected with each other. Deviating from the illustration shown, the tower 1 Of course, only tower sections 3 Concrete, with the tower sections 3 Concrete can also be made in different ways. In the present case is the further tower section 3b made of concrete conical, during the designed as a water tank tower section 3a is cylindrical. Each of the tower sections 3a . 3b Concrete, however, can be both cylindrical and conical. At the top of the tower 1 Finally, a nacelle and a rotor can be arranged in the usual way (not shown here).

The trained as a water tank tower section 3a is present directly above the foundation 2 as the foot section of the tower 1 executed. The tower section 3a has a larger diameter than the other tower section 3b so the tower 1 has a high rigidity and is less prone to vibration even at higher heights. At the same time a comparatively large water storage volume is obtained. Nevertheless, designed as a water tank tower section 3a can not be manufactured in in-situ concrete, but can in a simple and fast way from precast concrete parts 9 be assembled. The tower section 3a consists of several, annular concrete segments 7 , each with the formation of horizontal joints 6 are arranged one above the other. Each of the concrete segments 7 of the tower section 3 in turn consists of at least three ring segment-shaped precast concrete elements 9 , which under formation of vertical joints 8th in the circumferential direction of the individual concrete segments 7 are arranged side by side.

2 shows a schematic section of the trained as a water storage tower section 3a , The water reservoir is directly through the inner wall of the tower section 3a as a lateral boundary as well as the top of the foundation 2 formed as a soil. It is therefore a watertight version of the tower section 3a and the foundation 2 required. In the foundation 2 is also a penstock 28 arranged, by means of which the stored water of a turbine, not shown here of the pumped storage power plant can be supplied. As upper limit or as a lid of the water reservoir is still a clamping piece 25 on the tower section 3a arranged.

Present is on the tower section 3a another tower section 3b Concrete arranged, also with the formation of horizontal joints 6 made of precast concrete 9 built and externally inside the tower 1 extending vertical tendons 18 is biased. The vertical tendons 18 are through protective tubes 23 passed in the clamping piece and on the clamping piece 25 anchored. The tower section 3b can therefore be separated from the tower section in an advantageous manner 3a be executed, so that each tower section 3a . 3b can be adjusted according to the requirements.

To the individual, superimposed concrete segments 7 designed as a water storage tower section 3a to connect with each other, are also vertical tendons 18 intended. By means of the vertical tendons 18 will be such a great bias on the tower section 3a applied so that it can withstand not only the stored water volume, but also the loads during operation from wind forces and suggestions by the rotating rotor. At the same time, the individual concrete segments 7 through the vertical tendons 18 on the job site in a simple and fast way and due to the special, high-precision design of precast concrete parts 9 , which will be explained below, are connected waterproof to each other.

For sealing is between the individual concrete segments 7 each a circumferential sealing profile 17 (S. 6 ) arranged at the ready assembled tower section 3a through the vertical tendons 18 and possibly also by the weight of the tower section 3a is pressed so that waterproof horizontal joints 6 can be produced. The use of a potting compound is not required for this purpose. In the present case are the concrete segments 7 in the vertical direction of the tower 1 only by the vertical tendons 18 connected with each other. However, it is also possible to provide additional vertical screw connections, as in 6 shown.

The vertical tendons 18 are outside the concrete section of the precast concrete parts 9 but within the tower section 3a and thus the water reservoir. To the vertical tendons 18 protected against the volume of water, are over the entire height of the tower section 3a thermowells 23 built-in. In the foundation 2 are also more protective tubes 23 (not shown), through which the vertical tendons 18 can be guided in a loop, thereby in the foundation 2 to be anchored. The construction of the tower section 3a This can be done very quickly because only the individual concrete segments 7 must be set on top of each other. Subsequently, the vertical tendons 18 into the water layer protection pipes 23 shot in, upper side of the easily accessible spanner 25 clamped and pressed with grout.

The execution of the individual precast concrete elements 9 from which the concrete segments 7 are now composed on the basis of 3 and 4 described. The precast concrete parts 9 have an outside 10 , an inside 24 , an upper contact surface 11 , a lower contact surface 12 as well as two lateral contact surfaces 13 on. To the precast concrete parts 9 to a circular concrete segment 7 to be able to assemble, have the precast concrete parts 9 at least one tensioning channel 14 on. The present precast concrete 9 has three such clamping channels 14 on.

How the particular 3 can be removed, the height H of the ring segment-shaped precast concrete elements 9 This is much lower than the width B. Preferably, the height H of the precast concrete parts is less than 3 m or even less than 2.5 m. The precast concrete parts 9 Therefore, they can easily be transported horizontally without exceeding the maximum road transport width. The height of precast concrete elements 9 is oriented in the transverse direction of the transport vehicle. The precast concrete parts 9 are made by means of a formwork (not shown) as Genauteile. This means that the precast concrete parts 9 already achieve their ready-to-install final contour by casting, without the need for another processing step. The precast concrete parts 9 are poured with such high accuracy that the upper contact surface 11 and the lower contact surface 12 without post processing are aligned exactly plane-parallel to each other. Likewise, the two lateral contact surfaces 13 exactly at right angles to the upper and lower contact surfaces 11 . 12 and aligned at an exact angle to each other. In the formwork (not shown) for this purpose two end formworks and two side formworks are provided which are each independently adjustable with respect to the basic formwork. Because the orientation of the lateral contact surfaces 13 to the upper and lower contact surfaces 11 . 12 is very accurate, is when assembling several precast concrete parts 9 to an annular concrete segment 7 no leveling compound required. In addition, due to the high quality contact surfaces 11 . 12 . 13 the sealing of the joints facilitated because in the vertical joints 8th and horizontal joints 6 around the precast concrete part 9 circumferential sealing profiles 17 can be pressed evenly over the entire joint. The construction of the tower section 3a is therefore very quickly possible for these reasons.

In addition, the individual precast concrete parts can 9 due to their relatively small dimensions also be made on site by means of transportable formwork on site. After the tower 1 or the planned towers 1 and possibly also the water storage tanks described below 26 are completely erected at the installation site, the formwork can be easily transported to the next installation site. It is thus, despite the on-site production, an economical production of precast concrete parts 9 or the towers 1 possible. It is advantageous that the ring segment-shaped precast concrete parts 9 are largely standardized, so that only a few different forms are needed.

5 shows a plan view of a tower section 3a in which several precast concrete parts 9 , in the present case a total of four precast concrete elements 9 , to a concrete segment 7 are composed. In the present case are the lateral contact surfaces 13 adjoining precast concrete elements 9 stumped together. To join the precast concrete parts 9 Therefore, a guide element (not shown) can be made into a lateral contact surface 13 every precast concrete part 9 be poured or inserted into a corresponding recess. The other side contact surface 13 is in turn provided with a corresponding to the guide element recess so that when joining two Precast concrete products 9 the recess and the guide element interlock and the two precast concrete parts 9 position each other. Alternatively or additionally, a temporary joining aid may be provided, preferably on the outside 10 each of a precast concrete part 9 is attached and the second, to be joined precast concrete 9 opposite the first precast concrete part 9 positioned.

After the precast concrete parts 9 to a concrete segment 7 are joined by one or more within the span channels 14 guided ring tendons 15 (Not shown in the present case) clamped in the circumferential direction and thereby connected to each other. In the present case are two of the precast concrete parts 9 as equal parts 9a while the other two precast concrete parts 9 as clamping parts 9b trained and with a suitability 16 are provided. Accordingly, two ring tendons 15 provided, which are tensioned on the Spannlisenen 16 are fixed. Furthermore, in the vertical joints 8th a sealing profile 17 intended. The sealing profiles 17 be through the ring tendons 15 pressed so that after tightening the ring tendons 15 the precast concrete parts 9 waterproof to a concrete segment 7 are joined.

After their assembly, the ring tendons 15 with a grout in the clamping channels 14 pressed. The anchors (also not shown) of the ring tendons 15 are protected in niches 29 the Spannlisenen 16 are arranged and after the assembly of the ring tendons 15 also pressed watertight. Because of the outside 10 arranged Spannlisenen 16 are the ring tendons 15 For clamping well accessible and at the same time protected outside the water volume.

The precast concrete parts 9 Already before their installation on the tower section 3a or the foundation 2 to the concrete segment 7 be joined and by means of the ring tendons 15 be tense. The ring bias gives the annular concrete segment 7 high stability, so that the concrete segment 7 then raised as a whole and on the tower section 3a can be mounted. Likewise, however, the individual precast concrete parts can 9 directly on the tower section 3a or the foundation 2 to the concrete segment 7 be joined and the ring tendons 15 only then be installed.

However, it may also be advantageous if the individual precast concrete parts 9 a concrete segment 7 each by screwing 19 at least temporarily interconnected. Preferably, in each case two screws 20 from the outside at an angle in the junction of the vertical joint 8th introduced, so that the inner sealing profile 17 is pressed in an advantageous manner, so that the precast concrete parts 9 can be joined with exact position. The screws 20 themselves are in 5 not shown, the structure of the horizontal fittings 19 however, corresponds to the one in 6 described vertical glands 19 , The screw connections 19 can be easily mounted from the outside or easily removed if necessary. The concrete segment 7 can by means of the screw connections 19 assembled at the installation site and on the already existing tower section 3a being constructed. The ring tendons 15 can therefore only after the installation of one or more concrete segments 7 on the tower section 3a be tense. The screw connections 19 are only for carrying the own weight of the concrete segment 7 designed and thus serve only as assembly aids.

6 shows a broken, schematic sectional view of a trained as a water tank tower section 3a in detail. According to the present presentation, the individual precast concrete elements 9 or the concrete segments 7 also in the vertical direction by means of vertical screw connections 19 composed. For this purpose, one screw at a time 20 from the outside and diagonally from above into the junction of two concrete segments 7 brought in. The individual precast concrete elements 9 For example, each two recesses 22 have at their lower end in the installed state and in each case two embedded or inserted dowels 21 at their upper ends in the installed state. By means of the vertical screw connections 19 it is again possible, arranged internally, circumferential sealing profiles 17 between the individual concrete segments 7 to arrange so that the horizontal joints 6 are watertight and pressure resistant without the use of potting compounds.

To the first concrete segment 7 of the tower section 3a with the foundation 2 to connect, according to the present presentation, the foundation 2 a circumferential pedestal 32 on, with a recess for receiving the bottom concrete segment 7 is provided. The base 32 is in turn by means of joint tapes, Verschläuchen or the like. Waterproof with the foundation 2 connected. The base 32 can also be one-piece to the foundation 2 be formed. Furthermore, in the pedestal 32 and / or in the foundation 2 a positioning aid 31 for adjusting the lowest concrete segment 7 be anchored. The positioning aid 31 is adjustable with respect to its anchoring, so that the lowest concrete segment 7 exactly on the foundation 2 can be set up.

In the detail view of the 6 it can be seen that the profile 17 from a lower profile part 17' and an upper profile part 17'' may exist, each in a recess of the precast concrete part 9 and the pedestal 32 are located. During assembly, the tower section becomes 3a temporarily stored on presses not shown, which are then drained together, so that the upper profile part 17'' evenly on the lower profile section 17' is pressed and seals. In the unloaded state are the two profile parts 17' and 17'' over the pedestal 32 and / or the precast concrete part 9 Beyond and while lowering the precast concrete part 9 on the pedestal 32 pressed together.

7 shows a schematic plan view of a plant for power generation with a tower of a wind turbine 1 and a water storage tank 26 a pumped storage power plant. The water storage tank 26 has a much larger diameter than the tower 1 or the tower section 3a on. Preferably, the water storage tank 26 at least twice the diameter of the tower section 3a on. According to the present illustration is the tower 1 the wind turbine inside the water storage tank 26 on a floor plate 27 (please refer 8th ) of the water storage tank 26 built up. The foundation 2 of the tower 1 is here as a flat foundation directly on the bottom plate 27 built. By the trained as a water tank tower section 3a surrounding, additional water storage tanks 26 For example, a comparatively large storage volume can be accommodated on a relatively small area. Present form the water storage tank 26 and the tower section 3a together an upper reservoir of the pumped storage power plant.

The water storage tank 26 whose construction is in 8th is shown in a schematic view, is as well as the tower section 3a from a variety of ring segment-shaped precast concrete parts 9 constructed, each to concrete segments 7 be assembled and connected only by horizontal clamping means and vertical clamping means, but without potting compounds. The structure of the individual precast concrete elements 9 of the water storage tank 26 with the tension channels 14 as well as their production essentially corresponds to that of the tower section designed as a water reservoir 3a , Likewise, the connection corresponds to the individual precast concrete elements 9 by means of the ring tendons 15 and possibly the screwed connections 19 basically to the tower section 3a described so that reference is made in this regard to the previous statements and below only to differences from the tower section 3a will be received.

Unlike the tower section 3a is the water storage tank 26 from several different precast concrete parts 9 built to water storage tank 26 different, larger diameter to produce. The majority of the precast concrete parts 9 is again as equal parts 9a executed, which can be produced inexpensively by means of only one formwork and because of their small size on site. Likewise, also in the water storage tank 26 least two as clamping parts 9b executed precast concrete parts 9 provided so that the individual concrete segments 7 of the water storage tank 26 in each case by means of at least two, across the circumference of the water storage tank 26 guided ring tendons 15 can be tightened. According to the in 8th shown embodiment is each concrete segment 7 with a total of three clamping channels 14 provided so that each concrete segment 7 six ring tendons 15 are provided, each spanning half of the circumference.

To occurring assembly and component tolerances as common parts 9a executed precast concrete parts 9 to be able to compensate, are still closing parts 9c provided, each obliquely to the upper and lower contact surfaces 11 . 12 extending lateral contact surfaces 13 (S. 8th ) exhibit. Furthermore, there are beginning parts 9d and end parts 9e provided, in which only one of the lateral contact surfaces 13 obliquely to the upper and lower contact surfaces 11 . 12 is formed and with the oblique end parts 9c interact. According to the presentation of the 7 are the clamping parts 9b at the same time as closing parts 9c executed, after 8th are still additional final parts 9c intended. For example, distributed over the circumference four end parts 9c be provided, preferably at least two of the closing parts at the same time 9c as clamping parts 9b are formed. However, there may be more than two clamping parts 9b , distributed over the circumference, per concrete segment 7 be provided.

The individual precast concrete elements 9 a concrete segment 7 are here by means of externally accessible, horizontal glands 19 as in 5 represented with the adjacent precast concrete part 9 connected. Present ( 8th ) are each vertical joint 8th two connection points, each with two screw connections 19 intended. The screw connections 19 serve as assembly aids for mounting the precast concrete parts 9 that is directly on the bottom plate 27 or the already created part of the water storage tank 26 be joined, as well as for pressing the sealing profiles provided here 17 (Not shown). After applying the ring bias by the ring tendons 15 can the screws 20 (in 7 and 8th not shown), removed again or for reasons of simplification of assembly also be left.

As an alternative to the embodiment shown, however, it would also be conceivable to use the individual precast concrete components 9 without clamping channels 14 produce and instead of ring tendons 15 only by means of the screw connections 19 to connect as horizontal clamping means. The screw connections 19 serve in this case, the load transfer during operation.

As the water storage tank 26 essentially only burdened by the water pressure, are the individual concrete segments 7 only by means of vertical screw connections 19 as in 6 shown connected as a vertical clamping means. Again, at the lower end in the installed state of the precast concrete elements 9 two recesses each 22 for screws 20 provided and at the upper ends in the installed state two dowels 21 , Of course, a reverse arrangement would also be conceivable. The precast concrete parts 9 a respective upper concrete segment 7 are still opposite those of the underlying concrete segment 7 arranged offset so that the precast concrete elements 9 each with a screw connection 19 with the two underlying precast concrete elements 9 are connected. Deviating from the illustration shown, of course, more or less glands 19 be provided both in the horizontal direction and in the vertical direction.

The watertight and pressure-tight sealing of the horizontal joints 6 Again, this is done only by means of a precast concrete 9 circumferential, arranged inside sealing profiles 17 (S. 6 ). It is advantageous that the water storage tank 26 has a relatively high weight due to its size. To ensure correct installation of the sealing profile 17 It can be advantageous to use the lowest concrete segment 7 after putting it on the bottom plate 27 with the sealing profile 17 was set to press by means of hydraulic presses until further concrete segments 7 are constructed and a sufficiently high weight is reached.

Due to the construction of the water storage tank 26 and the tower section 3a from comparatively small precast concrete parts 9 It is possible to build these up very quickly on site. Due to their small size, the precast concrete parts 9 can also be produced locally by means of transportable formwork. As the individual precast concrete parts 9 can be produced mainly as standardized parts and the formwork can be used at other locations further, in spite of the costly production of the precast concrete parts 9 as Genauteile an economical production of the tower section 3a or the water storage tank 26 be achieved. Due to the structure of largely standardized components, therefore, the planning of the plant for energy production and construction site equipment is facilitated on site. The cost-savings are further supported by the quick and simple construction, which is achieved by the standardized precast concrete components 9 is possible at.

LIST OF REFERENCE NUMBERS

1

tower

2

foundation

3

Tower section made of concrete

3a

designed as a water storage tower section of concrete

3b

another tower section made of concrete

4

Tower section made of steel

5

Transition piece

6

Horizontal joint

7

concrete segment

8th

vertical joint

9

Precast concrete

9a

equal parts

9b

tensioning part

9c

trailer

9d

initial part

9e

end

10

outside

11

upper contact surface

12

lower contact surface

13

lateral contact surface

14

chip channel

15

Ring tendon

16

Spannlisene

17

sealing profile

18

Vertical tendon

19

screw

20

screw

21

dowel

22

Recess for screwing

23

thermowell

24

inside

25

sear

26

Water storage tanks

27

baseplate

28

Penstock

29

Anchorage recess

31

positioning

32

base

H

height

B

width

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

• WO 2012/150027 A1 [0003]
• DE 102011052873 A1 [0004]

Claims (28)

Tower ( 1 ) for a wind turbine with at least one tower section ( 3a ) of concrete, which forms a water reservoir of a pumped storage power plant, characterized in that the at least one tower section ( 3a ) with the formation of horizontal joints ( 6 ) of a plurality of superimposed, annular concrete segments ( 7 ), each concrete segment ( 7 ) with the formation of vertical joints ( 8th ) of at least two, juxtaposed, ring segment-shaped precast concrete parts ( 9 ), each having an outer side ( 10 ), an inside ( 24 ) as well as an upper, a lower and two lateral contact surfaces ( 11 . 12 . 13 ) and that the precast concrete elements ( 9 ) each of a concrete segment ( 7 ) are interconnected only by horizontal clamping means. Tower according to the preceding claim, characterized in that the horizontal clamping means at least one, (in the substantially horizontal clamping channels 14 ) of precast concrete elements ( 9 ) guided ring tendon ( 15 ). Tower according to any one of the preceding claims, characterized in that the (at least one annular clamping member 15 ) in the span channels ( 14 ) of precast concrete elements ( 9 ) is compressed. Tower according to one of the preceding claims, characterized in that the concrete segments ( 7 ) of the at least one tower section ( 3 ) are connected together by vertical clamping means, wherein the vertical clamping means comprise vertical clamping members ( 18 ), preferably outside the concrete cross section guided vertical tendons ( 18 ). Tower according to the preceding claim, characterized in that the vertical clamping members ( 18 ) outside the concrete section in the interior of the tower section ( 3 ) arranged protective tubes ( 23 ), wherein preferably the vertical clamping members ( 18 ) in the protective tubes ( 23 ) are pressed. Tower according to one of the preceding claims, characterized in that on the at least one tower section ( 3a ) a clamping piece ( 25 ) is arranged and that the vertical tendons ( 18 ) clamped on the clamping piece ( 25 ). Tower according to one of the preceding claims, characterized in that vertical clamping members ( 18 ) loops in a foundation ( 2 ) of the tower ( 1 ) are anchored. Tower according to one of the preceding claims, characterized in that on the clamping piece ( 25 ) another tower section ( 3b . 4 ), in particular another concrete tower section ( 3b ) is arranged. Tower according to one of the preceding claims, characterized in that the concrete segments ( 7 ) at least two as equal parts ( 9a ) precast concrete elements ( 9 ) and at least one clamping part ( 9b ) with a molded-on clamping plate ( 16 ) trained precast concrete ( 9 ), at which the at least one ring tensioning member ( 15 ). Tower according to one of the preceding claims, characterized in that the contact surfaces ( 11 . 12 . 13 ) of precast concrete elements ( 9 ) are smooth and preferably untreated. Tower according to any one of the preceding claims, characterized in that the height (H) of the ring segment-shaped precast concrete elements ( 9 ) is less than the width (B) of the ring segment-shaped precast concrete parts ( 9 ), wherein the height (H) is preferably less than a third, particularly preferably less than a quarter, of the width (B) of the ring-segment-shaped precast concrete elements ( 9 ) and wherein the height (H) is preferably less than 3 m, more preferably less than 2.5 m. Tower according to one of the preceding claims, characterized in that in the vertical joints ( 8th ) and / or the horizontal joints ( 9 ) a preferably internal sealing profile ( 17 ) is arranged. Tower according to one of the preceding claims, characterized in that the vertical clamping means vertical screw connections ( 19 ) and / or the horizontal clamping means horizontal screw connections ( 19 ). Tower according to the preceding claim, characterized in that at least the horizontal screw connections ( 19 ) are designed such that they are used only as assembly aids in the manufacture of the tower ( 1 ) serve. Water storage tank ( 26 ) of a pumped storage power plant made of precast concrete elements ( 9 ), characterized in that the water storage tank ( 26 ) with the formation of horizontal joints ( 6 ) of a plurality of superimposed, annular concrete segments ( 7 ), each concrete segment ( 7 ) with the formation of vertical joints ( 8th ) of at least two, juxtaposed, ring segment-shaped precast concrete parts ( 9 ), each having an outer side ( 10 ), an inside ( 24 ) as well as an upper one lower and two lateral contact surfaces ( 11 . 12 . 13 ) and that the precast concrete elements ( 9 ) each of a concrete segment ( 7 ) are interconnected only by horizontal clamping means. Water storage tank according to the preceding claim, characterized in that the horizontal clamping means preferably at least one, in substantially horizontal clamping channels ( 14 ) of precast concrete elements ( 9 ) guided ring tendon ( 15 ). Water storage tank according to one of the two preceding claims, characterized in that the horizontal clamping means outside the precast concrete parts ( 9 ) are guided. Water storage tank according to one of the two preceding claims, characterized in that the at least one ring tensioning member ( 15 ) in the span channels ( 14 ) of precast concrete elements ( 9 ) is compressed. Water storage tank according to one of the two preceding claims, characterized in that the concrete segments ( 7 ) in each case a plurality of as equal parts ( 9a ) trained precast concrete elements ( 9 ) and at least two clamping parts ( 9b ) with a molded-on clamping plate ( 16 ) precast concrete elements ( 9 ), wherein in each case at least two ring clamping members ( 15 ) across the circumference of the concrete segment ( 7 ) are guided and at the clamping parts ( 9b ). Water storage tank according to one of claims 17-19, characterized in that the concrete segments ( 7 ) at least one as a final part ( 9c ) trained precast concrete ( 9 ) whose lateral contact surfaces ( 13 ) obliquely to the upper and lower contact surfaces ( 11 . 12 ), as an initial part ( 9d ) trained precast concrete ( 9 ) and a final part ( 9e ) trained precast concrete ( 9 ), in which in each case one of the lateral contact surfaces ( 13 ) obliquely to the upper and lower contact surfaces ( 11 . 12 ) runs. Water storage tank according to one of claims 17-20, characterized in that the contact surfaces ( 11 . 12 . 13 ) of precast concrete elements ( 9 ) are smooth and preferably untreated. Water storage tank according to one of claims 20-21, characterized in that the height (H) at least as common parts ( 9a ) trained precast concrete elements ( 9 ) is less than the width (B) of the precast concrete elements ( 9 ), wherein the height (H) preferably less than a third, more preferably less than a quarter, the width (B) of the precast concrete parts ( 9 ) and preferably the height (H) of the precast concrete elements ( 9 ) is less than 3 m, more preferably less than 2.5 m. Water storage tank according to one of claims 17-22, characterized in that in the vertical joints ( 8th ) and / or the horizontal joints ( 6 ) a preferably internal sealing profile ( 17 ) is arranged. Water storage tank according to one of claims 17-23, characterized in that the precast concrete parts ( 9 ) superimposed concrete segments ( 7 ) are interconnected by vertical clamping means. Water storage tank according to one of claims 17-24, characterized in that the vertical clamping means vertical screw connections ( 19 ) and / or the horizontal clamping means horizontal screw connections ( 19 ). Water storage tank according to one of claims 17-25, characterized in that the water storage tank ( 26 ) a preferably one-piece bottom plate ( 27 ) and that between the bottom plate ( 27 ) and a lowest concrete segment ( 7 ) only a circumferential sealing profile ( 17 ) is arranged. Plant for generating energy with at least one wind turbine with a tower ( 1 ) according to any one of claims 1-17 and at least one pumped storage power plant with a water storage tank ( 26 ) according to any one of claims 17-26. Plant according to the preceding claim, characterized in that the tower ( 1 ) within the water reservoir ( 26 ) is arranged.

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