Anchoring arrangement for floating wind turbine installations

Abstract

The anchoring device for a floating wind turbine installation, such wind turbine installation comprising a floating cell ( 7 ), a tower ( 8 ) arranged over the floating cell, a generator ( 9 ) mounted on the tower which is rotatable in relation to wind direction and fitted with a wind rotor ( 10 ), and an anchor line arrangement ( 6 ) connected to anchors or anchoring points on the sea bed. The individual anchor lines ( 11 ) are each, at a certain distance from the floating cell ( 7 ) at a fixing point ( 5 ) on the individual anchor line, connected with double lines ( 2, 3 ) slanting outwards and connected to the floating cell ( 7 ) in a delta-shaped arrangement.

1 - 6 . (canceled) 
   
   
       7 . Anchoring arrangement for a floating wind turbine installation, such wind turbine installation comprising a floating cell ( 7 ), a tower ( 8 ) arranged over the floating cell, a generator ( 9 ) mounted on the tower which is rotatable in relation to wind direction and fitted with a wind rotor ( 10 ), and an anchor line arrangement ( 6 ) connected to anchors or anchor points on the sea bed wherein the individual anchor lines ( 11 ) are each, at a certain distance from the floating cell ( 7 ) at a fixing point ( 5 ) on the individual anchor line, connected with at least two lines ( 2 ,  3 ), each slanting outwards and being connected to the floating cell ( 7 ) in a delta-shaped arrangement. 
   
   
       8 . Anchoring arrangement according to  claim 7 , wherein the anchor line arrangement ( 6 ) comprises three anchor lines ( 11 ) arranged symmetrically at intervals of 120°. 
   
   
       9 . Anchoring arrangement according to  claim 7 , wherein lines ( 2 ,  3 ) in the delta-shaped arrangement are arranged at a mutual angle of between 20 and 60°. 
   
   
       10 . Anchoring arrangement according to  claim 7 , wherein lines ( 2 ,  3 ) in the delta-shaped arrangement are arranged at an angle to the horizontal plane of between 30 and 70°. 
   
   
       11 . Anchoring arrangement according to  claim 7 , wherein lines ( 2 ,  3 ) in the delta-shaped arrangement are fixed to the floating cell ( 7 ) at the maximum possible distance for the fixing points on the floating cell. 
   
   
       12 . Anchoring arrangement according to  claim 7 , wherein lines ( 2 ,  3 ) in the delta-shaped arrangement are fixed in pairs to joint brackets ( 4 ) on the floating cell ( 7 ).