Patent ID: 7905104

Claim:
A climatisation system for wind turbines which comprise: a nacelle ( 1 ); a foundation ( 2 ); a tower ( 3 ) which connects the nacelle ( 1 ) to the foundation ( 2 ); characterised in that: the nacelle ( 1 ) is airtight; the climatisation system comprises: a first heat exchanger ( 10 ) in the nacelle ( 1 ) for exchanging heat with at least one element ( 11 ) of the nacelle for which the temperature needs to be controlled; a second heat exchanger ( 20 ) outside the nacelle ( 1 ) for exchanging heat with a first means of exchange ( 21 ); a first section ( 12 ) of a climatisation circuit for: connecting the first heat exchanger ( 10 ) with the second heat exchanger ( 20 ); circulating a liquid coolant between the first heat exchanger ( 10 ) and the second heat exchanger ( 20 ); impulsion devices ( 100 ) to circulate the liquid coolant on the first section ( 12 ) of the climatisation circuit; an expansion tank ( 400 ) to allow a controlled expansion of the liquid coolant and prevent overpressures in the circuit; a storage tank ( 410 ) with capacity to store sufficient liquid coolant in order to ensure that the impulsion devices ( 100 ) have liquid coolant to circulate on the first section ( 12 ) of the circuit; at least one shut off valve ( 200 ) regulated to prevent water hammer; a relief valve ( 300 ) between the impulsion devices ( 100 ) and the first heat exchanger ( 10 ) to return any excess liquid to the storage tank ( 410 ).