Production of a tower

Patent metadata

Field	Value
Publication number	US-9533428-B2
Application number	US-201214127813-A
Country	US
Kind code	B2
Filing date	Jun 14, 2012
Priority date	Jun 22, 2011
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

The present invention relates to a method for producing a tower segment of a concrete tower of a wind energy installation, comprising the steps: providing a segment mold having at least one formwork for defining a mold of the tower segment that is to be produced and for filling with concrete; filling the segment mold with concrete in order to form the tower segment by the subsequent hardening of the concrete; measuring the tower segment thus hardened for creating a three-dimensional, virtual actual model of said tower segment; producing said three-dimensional actual model; comparing the three-dimensional actual model with a predefined mold, in particular a stored three-dimensional, virtual target model; and determining a deviation between both virtual models and changing the segment mold, in particular changing the at least one formwork when the deviation exceeds a first predefined threshold value.

First claim

The invention claimed is:

1. A process for making pylon segments for a concrete pylon of a wind power installation, the process comprising:
providing a segment mold having at least one shuttering for predetermining a shape of the pylon segments and for filling with concrete;
filling the segment mold with concrete;
hardening the concrete to form a first pylon segment;
measuring the first pylon segment for the production of a three-dimensional virtual actual model of said first pylon segment;
producing said three-dimensional virtual actual model;
comparing the three-dimensional virtual actual model to a three-dimensional virtual reference model;
determining a deviation between the virtual actual and virtual reference models;
comparing the deviation to a first threshold value;
modifying the segment mold when the deviation exceeds the first threshold value; and
using the modified segment mold to form a second pylon segment.

2. The process according to claim 1 wherein measuring the first pylon segment includes using a laser measuring device for measuring the first pylon segment.

3. The process according to claim 1 wherein measuring the first pylon segment is effected with an accuracy of 5 mm or higher, and the first threshold value is 10 mm or less.

4. The process according to claim 1 wherein a maximum deviation of a horizontal section of the virtual actual model is preset as the first threshold value.

5. The process according to claim 1 wherein the first pylon segment is treated as a reject if a deviation between the virtual actual model exceeds a second threshold value, wherein the second threshold value is greater than the first threshold value.

6. The process according to claim 1 wherein a correction value is calculated in dependence on the deviation for altering the segment mold.

7. The process according to claim 1 further comprising:
wherein measuring the first pylon segment comprises using a laser measuring device to measure geometrical dimensions of the first pylon segment; and
wherein producing said three-dimensional actual model comprises using a data processing device to produce the virtual actual model.

Assignees

• Kapitza Jan
• Albers Karsten
• Horn Gunther
• Wobben Properties Gmbh

Inventors

• Kapitza Jan
• Albers Karsten
• Horn Gunther

Classifications

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title

• Y02E10/72

  Wind turbines with rotation axis in wind direction · CPC title

• B28B7/22 Primary

  Moulds for making units for prefabricated buildings {, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells (for making rooms or entire buildings in situ E04G11/02)}; Moulds for making prefabricated stair units · CPC title

• B28B7/02 Primary

  Moulds with adjustable parts {specially for modifying at will the dimensions or form of the moulded article} · CPC title

• E04B1/34331

  mainly constituted by three-dimensional elements · CPC title