Udvikling af køjekransproteser som sevicevirkemiddel for slidskadede vindmøller
Turbines are designed to change its direction as a change in the wind direction occurs, and partial wear occurs when the windmill actively yaws back and forth in a too narrow spectrum for a long time. It is our aim to develop solutions to this crucial problem within the service industry (windmills) in order to reduce the costs significantly.
A damaged yaw ring will have to be replaced. In order to preform that operation, the nacelle assembly has to be lifted with an external crane. As the damage often is centered among one of a few teeth (worm or broken), removing the entire yaw ring (3m with), simply calls for an alternative solution – reduction of cost and shortening the down time. At Grenaa Motorfabrik our aim is to develop solutions to crucial problems within the service industry (windmills) – methods, tools, procedures – and in this project we will develop a new solution for damaged yaw rings in order to reduce the costs significantly. By designing and preparing a segment of yaw ring matching the damage type of turbine to replace only the damaged part, the service provider will no longer need to dissemble the wind mill. The need for cranes, ships and other heavy logistics is eliminated
Formålet med projektet var, at udvikle en on-site reparationsløsning, der muliggør reparation uden hjælp af kran og uden større demontering af turbinen. Der er udviklet en maskine til at fræse den beskadigede del af en krøjekrans væk og efterlade en ”veldefineret lomme”, hvor en reparationssektion kan installeres. Desuden har projektet resulteret i udviklingen af en metode til at fremstille disse reparationssegmenter på en fleksibel måde, som kan udføres på en maskinfabrik uden specielle brug ag specielle maskiner.
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| Partner | Tilskud | Eget bidrag |
|---|---|---|
| Grenaa Motorfabrik | 1.84 mio. | 2.25 mio. |