Tower construction

Patent metadata

Field	Value
Publication number	US-9249597-B2
Application number	US-201013808727-A
Country	US
Kind code	B2
Filing date	Nov 4, 2010
Priority date	Jul 12, 2010
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A tower construction for a wind turbine is proposed. The tower construction has a number of axially disposed hollow cylindrical tower sections. Each of the axially disposed hollow cylindrical tower sections has a number of circumferentially disposed first tower section segments and a number of circumferentially disposed second tower section segments. The first tower section segments and the second tower section segments are alternated with each other.

First claim

The invention claimed is:

1. A tower construction for a wind turbine, comprising:
a plurality of axially disposed hollow cylindrical tower sections,
wherein each of the tower sections comprises an upper end and a lower end, and comprises a plurality of circumferentially disposed alternating first and second tower section segments defining an overlapping portion having a width and extending axially between the upper and lower end; and
wherein the width of the overlapping portions of each tower sections increases in an upward axial direction resulting in the overlapping portion at the lower end of one tower section having a width less than the overlapping portion at the upper end of an adjoined tower section.

2. The tower construction according to claim 1 , wherein the overlapping portions are fixed to each other by a connecting device.

3. The tower construction according to claim 2 , wherein the connecting device comprises bolted joints and/or welded joints.

4. The tower construction according to claim 1 , wherein the first and the second tower section segments comprise a rectangular shape respectively.

5. The tower construction according to claim 1 , wherein the first and the second tower section segments comprise same heights and different widths.

6. The tower construction according to claim 1 , wherein the first tower section segments comprise widths that are constant throughout each of the tower sections, and wherein the second tower section segments comprise widths that differ throughout each of the tower sections.

7. The tower construction according to claim 1 , wherein one of the first tower section segments is axially connected to a further one of the first tower section segments, and wherein one of the second tower section segments is axially connected to a further one of the second tower section segments.

8. The tower construction according to claim 1 , wherein at least one of the first tower section segments comprises a first connecting portion for connecting with a further one of the first tower section segments disposed at a first axial free ending, and wherein at least one of the second tower section segments comprises a second connecting portion for connecting with a further one of the second tower section segments disposed at a second axial free ending.

9. The tower construction according to claim 8 , wherein the first connecting portion is disposed at the first axial free ending of the first tower section segments, and wherein the second connecting portion is disposed at the second axial free ending of the second tower section segments.

10. The tower construction according to claim 9 , wherein the first and the second connecting portions are disposed radially outside of the first and the second tower section segments with respect to an axis of the tower construction respectively, and wherein a further first and a further second connecting portions are disposed radially inside of the first and the second tower section segments with respect to the axis of the tower construction respectively.

11. The tower construction according to claim 8 , wherein the first and the second connecting portions abut the first and the second tower section segments by bolted and/or welded joints respectively.

12. The tower construction according to claim 8 , wherein the first and the second connecting portions are pre-mounted to the first and the second tower section segments respectively.

13. The tower construction according to claim 8 , wherein the first and the second connecting portions are built as a fishplate respectively.

14. The tower construction according to claim 1 , wherein at least one of the first tower section segments and/or at least one of the second tower section segments comprises at least one at least partially axially extending bent.

15. A wind turbine, comprising:
a tower construction according to claim 1 .

Assignees

• Stiesdal Henrik
• Siemens Ag

Inventors

• Stiesdal Henrik

Classifications

• Y02E10/721

  Cross-Sectional Technologies · mapped topic

• E04H12/085

  Details of flanges for tubular masts · CPC title

• F03D1/001

  Mechanical Engineering · mapped topic

• F03D11/04

  Mechanical Engineering · mapped topic

• F05B2240/302

  Segmented or sectional blades · CPC title