BG484Y1 - Wind converter with a supporting tower - Google Patents

Abstract

The converter is used in the power industry. It is of a reliable design the building of which is economical. The wind converter with a supporting tower for it, being an abandoned power plant chimney or an abandoned factory chimney made of reinforced concrete, includes a rotor with a horizontal shaft (20), to one of the ends of which rotor blades (9) are resting. Chimney (1) is shortened in such a way as to ensure static and dynamic stability of a cross-bar (8) fitted to it, to which the wind converter (2) is eccentrically mounted, with a facility of revolving around a vertical shaft (19), parallel to the vertical axis of chimney (1) or coinciding with it at the momentary optimal direction of the wind. The cross-bar to which the converter (2) is mounted can also be made in the form of a composite cross-bar (6, 7, 12, 16), and in this case the rotor blades (9) are at some distance (21) from the surrounding surface of chimney (1). 7 claims, 10 figures

Description

(54) AIR CONVERTER WITH A TOWER

Technical field

The utility model refers to a wind converter with a tower supporting energy applications.

BACKGROUND OF THE INVENTION

Wind energy facilities belong to alternative, environmentally friendly new energy sources and are being used increasingly for electricity generation. Wind as an energy source is not constantly available and does not have a steady intensity. For these reasons, wind power facilities are known to be predominantly located in areas with constant winds and noticeably high speeds.

As a rule, a tower is constructed of a concrete structure, or of a steel structure, or of any mixed structure, including its foundation. At the upper end of the tower is a 360 ° rotary wind converter with free rotation device (Howe, Wind Power, Springer Publishing House, Berlin, 1988, pp. 388, 390). With the help of the rotating device, an automatic concentric rotation of the transducer in the respective wind direction is obtained through the respective measuring and control devices. The high cost of the foundation and tower, as well as the problem of transporting the finished towers or their sections to the installation site, limits the working heights of the used inverters from 20 to 65 m on the hub or rotor axis. The largest known power efficiency of an individual converter so far has been achieved in Germany with the Grovian wind power plant and other prototypes of about 1500 kW.

This and other known facilities have the disadvantages inherent in the limited tower height or large investments for taller towers, so the chances of economically viable energy facilities are negligible in poor high wind areas in the mainland.

DE 2507518 is known for the steel-ton tower, which rises above ground level in the wind zone. At least three high-power wind turbines or more, according to Hermann Honev or other inventors, are installed on the upper end of the tower to produce electricity. At the same time, the interior space of the tower, by dividing several chambers or floors, is used for other different purposes. In this case, it concerns the use of a water tower.

The disadvantage of this construction is that the water towers have a conical or parabolic shape. In order to absorb a large amount of energy, it is necessary that the wind wings of the wind converter be large. This creates a problem with the wings extending significantly away from the tower surface. The close passage of the wings along the surface of the tower creates a downward pressure, which causes the wings to flicker, to flatten into the surface of the tower and to break. Removing the wings far creates other structural and operational disadvantages, making the construction unreliable and economically unprofitable.

The technical solution according to PCT / GB 91/01965 WO 92/08893 shows the installation of a wind converter on an in-service industrial chimney. One or two levels of wind converters are mounted on the chimney. The installation of a wind converter is indicated both directly next to the outlet neck of the chimney and in the intermediate part of the chimney.

The disadvantage of this construction is that such a chimney is designed to withstand the static and dynamic loads inherent in a chimney, and is not designed for a tower of a wind converter and cannot be directly mounted to a powerful wind converter. It will not withstand the total static and dynamic loads arising from the carrying of the wind transducer and its propulsion, since a wind turbine tower, in addition to the intrinsic static loads from the own mass of the whole facility, is dynamically loaded significantly by the dynamic forces of the the wind, since the wind area at the wind converter is significantly larger than that of a smoke stack. This also makes the construction unreliable and economically unprofitable.

The technical nature of the utility model

The task of the utility model is to create a wind converter with a support tower for it, which is of reliable and economical construction.

The task was solved by creating a wind converter with a supporting tower for it, which used an abandoned chimney of a power plant or an abandoned industrial chimney of reinforced concrete. The wind converter includes a horizontal axis rotor at one end of which the rotor wings are mounted. According to the utility model, the chimney is shortened to provide static and dynamic resistance to a carrier attached thereto, to which the wind converter is eccentrically mounted, rotatable about a vertical axis parallel to the vertical axis of the chimney or coinciding with it in the instant optimal direction of the chimney. the wind.

The problem is also solved by a wind converter with a tower supporting a used abandoned chimney of a power plant or an abandoned industrial chimney of reinforced concrete, the wind converter including a rotor with a horizontal axis at one end of which rotary wings are mounted. According to the utility model, the chimney is shortened to provide static and dynamic resistance to a composite carrier mounted thereon, to which a wind converter is mounted so that the rotor wings are at a distance from the surrounding surface of the chimney.

In an embodiment of the utility model, the composite carrier is connected to the tower by a connecting chimney section and a steel connecting part.

In another embodiment of the utility model, the composite carrier is attached to the connecting chimney portion by a flange formed to an upper concrete end of the chimney with an inner central opening.

The carrier may be constructed as a cylindrical or conically shaped steel tower, the base of which is secured to the upper concrete end of the shortened chimney.

The composite carrier may also be constructed as a steel tubular tower mounted inside the shortened chimney through one or more brackets and a support ring.

The carrier is mounted to an assembled horse centrally on the chimney rotating device through a support ring.

The advantages of a tower-mounted wind converter are the reliability of its construction and its cost-effective construction.

Explanation of the annexed figures

Several examples of implementation of the utility model are presented in the accompanying figures, of which:

Figure 1 is a wind energy installation on a chimney shortened as described in the utility model and a steel tower fastened thereon with an attachment between the two parts of the tower according to embodiment 1 in general;

FIG. 2 is a middle section according to the description of a utility model of an energy wind converter with one shortened chimney and an upper conical steel tower fixed thereon with an attachment between the two portions of the tower, according to Embodiment 2;

Figure 3 is a connecting part of a two-tower wind energy facility with a steel pipe tube at the top end of the concrete chimney according to Option 3, with vertical and horizontal forces transmitted through the ring or brackets at a distance greater than the diameter of the steel pipe. part of the tower;

FIG. 4 is a wind power plant with a circular support ring or eccentric on the chimney, respectively;

Figure 5 is a wind power facility with a circular support ring or eccentric on the chimney, respectively;

Figure 6 is a wind power facility with a support ring, respectively eccentric on the chimney;

Figure 7 is a wind energy facility with a support ring or eccentric on the chimney, respectively;

Figure 8 shows a plurality of transducers in optimal stack arrangement;

Figure 9 shows a plurality of transducers in optimal stack arrangement;

Figure 10 shows a plurality of transducers in optimal stack arrangement.

Examples of implementation of the utility model

Figure 1 shows the upper end of an unused reinforced concrete chimney 1 that is so modified that a top steel tower 6, 7 can be mounted on it. The wind energy facility consists of a lower one, based on a foundation 22, a chimney 1 and fixed to it. it is made of steel tower 6. In this connection is provided connection 3 of the tower 6 at the upper end of the chimney 1 according to option 1 or 2 (Fig. 2) with a counter coupling part 4 or collar 5, which in turn is able to connect with cylindrical or conical steel tower 6, 7 of bearing converter 2 tower 6 , 7. The transducer 2 with its rotor wings 9 and the rotating device 10 performs its normal function without damaging the lower part of the chimney 1, since the rotor wings 9 rotate laterally on the tower 1 or with a corresponding height of the rotor axis 20 above the surface of the chimney 1 .

In connection 3, in addition to the specific prerequisites for the counter coupling part 4 or the collar 5, the internal stairway passage and the arrangement of the installations are combined and the necessary protective railings 11 on the work platform are externally installed.

Figure 2 presents a solution according to the description of the utility model according to option 2, in which the connecting part 4 is not directly connected to the end of the chimney 1, but as a specific part with the calculated configuration of static and dynamic forces and dimensions is screwed to both the chimney 1 and and through the screw collar 5 is mounted to the upper steel tower 7.

Figure 3 shows a solution according to the description of the utility model according to Embodiment 3, wherein the steel tube tower 16 is positioned above inside the opening of the tower 1 at a length substantially larger than the diameter of the base of the steel tube tower 16. Its own mass and vertical wind load forces are balanced by a built-in ring 12 or multiple brackets 13 in the inner opening of the chimney 1, and horizontal forces are further balanced by a support ring 12 or multiple support brackets 13 on the upper end of chimney 1.

Figure 4 clarifies the description of the solution of how the converter 2 is rotatably mounted outside the chimney 1 on a carrier ring 14, whereby the available torsional forces, insofar as the carrier ring 14 is not a support device, transferring the torque torque, are taken by the tension rod 24 from the supporting structure 23 at the appropriate height through the supporting ring 14. The whole structure is so shaped that the auxiliary structures such as stairs 25 or the lifts, work platforms and lifting devices not shown in the drawing Units are located without interfering with the inside of the concrete chimney, using the available external stairs accordingly.

Figure 5 discloses a solution according to the description of the utility model, when the available roll-over forces at the corresponding dimensions of tower 1 are more advantageously brought to the side of tower 2 opposite to converter 2, by means of an extended tension rod 24.

Figure 6 shows how converter 2 is mounted to an eccentric carrier 8 between the vertical axis of rotation 19 of the converter 2 and the concentric rotating device 10 of the chimney 1 to ensure a sufficient distance 21 between the outer surface of the tower 1 and the rotor wings 9.

Figure 7 illustrates how a high power converter 2, due to its size and mass, and to ensure sufficient clearance 21, especially at very large chimney sizes, such as 5 m diameter of new chimney peaks, is mounted on the upper end of the chimney. chimney 1 by means of a central road and at the same time supporting ring 14 on a intermediate frame 17 with concentrically arranged rollers 18 and a central locking bolt 15. Some of the rings or rollers can be actuated to bring the converter 2 into service when needed. we or heading for works.

Figure 8 shows four transducers 2 above each other. The three lower ones are located on support rings 14, which are shaped as enclosing supports around the chimney 1, similar to the structures of Figures 6 and 7, only as support structures for taking over the torque without the tension rod 24 and the support structure 23. The upper converter 2 can be mounted as shown in FIG. 6 and 7, or mounted according to the embodiment of FIG. 1 to 3.

Figure 9 shows, in parallel, no more than two rows of transducers 2 mounted on one carrier ring 14, while FIG. 10 shows alternating pairs of mounted converters 2 with intermediate separate converters. This arrangement, or some mixed form of the corresponding arrangements according to Figures 1 - 10, shall be provided as appropriate, resulting in certain static or dynamic requirements.

If the oscillation or stability analyzes indicate that, for example, a load with a 1500 kW class converter with a peripheral rotor diameter of 65 m with a weight of 100 t, the configuration of FIG. 9, not used, could refer to the arrangement according to Figures 8 or 10. By arranging the aggregates according to FIG. 10, in view of the aerodynamic distance conditions, then additional height is allowed for the mounted single transducers 2 between the parallel transducers 2 for the windy regions. In these layouts according to Figures 8 - 10, from one height of chimney 1 of, for example, 300 m, heights of bearing rings or fastenings of transducers 2 of 300, 220, 140 and 60 w are obtained.

Claims (7)

Claims 1. A wind converter with a supporting tower thereon, which is a used abandoned chimney of a power plant or an abandoned industrial chimney of reinforced concrete, the wind converter including a rotor with a horizontal axis at one end of which is rotary wings, characterized in that the chimney ( 1) is shortened to provide static and dynamic resistance to a carrier (8) attached thereto, to which the wind converter (2) is eccentrically mounted, rotatable about a vertical axis (19) parallel to the vertical axis of the chimney (1) or coinciding with it in the instant optimal wind direction. 2. Wind converter with load-bearing tower, which is a used abandoned chimney of a power plant or an abandoned industrial chimney of reinforced concrete, such as the wind chill 5, a converter includes a horizontal axis rotor at one end of which the rotor wings are mounted, characterized in that the chimney (1) is shortened so as to provide static and dynamic resistance to the composite carrier (6, 7) attached to it. 12, 16) to which the wind converter (2) is mounted so that the rotor wings (9) are at a distance (21) from the surrounding surface of the chimney (1). 3. Wind converter with support tower 15 according to claim 2, characterized in that the carrier (6, 7, 12, 16) is connected to the tower (1) by a connecting chimney part (3) and a steel connecting part (4). 4. Wind converter with support tower 20 according to claim 2 or 3, characterized in that the carrier (6, 7) is connected to the connecting chimney portion (3) by a flange ( 5) molded to the upper concrete end of the chimney (1) with an inner central opening. 5. Wind turbine with supporting tower according to claims 2 to 4, characterized in that the carrier (6, 7) is constructed as a cylindrical or conically shaped steel tower, the base of which is secured to the upper 30 concrete end of the broken chimney (25). 1). 6. Wind turbine with supporting tower according to claim 2, characterized in that the composite carrier (16) is designed as a steel tubular tower mounted inside the shortened 35 a chimney (1) through one or more brackets (13) and a support ring (12). 7. Tower converter with support tower according to claim 1, characterized in that the carrier (8) is mounted to the assembly 40 concentric to the chimney (1) a rotating device (10) through a support ring (14). Attachment: 10 figures Expert: R. Ashikyan Publication of the Patent Office of the Republic of Bulgaria 1113 Sofia, 52-B Dr. GM Dimitrov Blvd. Editor: A. Semerdzhieva Cf. 40814 Circulation: 40 MB