Patent ID: 7644752

Claim:
System for cooling an inner wall ( 7 ) of a thermal system comprising a double wall ( 9 ), said inner wall being subjected to temperatures greater than or equal to the inner wall's physical capacity, said system comprising: a network of tubes ( 1 ) independent of said thermal system to be cooled; cooling water ( 4 ) circulating under pressure and at a maintained temperature within said tubes; nozzles ( 3 ) connected to said tubes and configured for atomizing the cooling water from said tubes and spraying the cooling water in full cones ( 5 ) via said nozzles against said inner wall ( 7 ); adjustable-flow cocks ( 2 ) controllable for controlling the atomizing of the cooling water during the spraying, said network of tubes being an integral part of an outer wall ( 9 ) of the thermal system to be cooled; a water spraying zone located between said respective inner and outer walls and maintained at a negative pressure; and another system configured for maintaining the negative pressure within the water spraying zone delimited by said respective inner and outer walls, wherein the negative pressure is maintained for an evaporation of the sprayed cooling water at a low temperature; wherein the system for maintaining the negative pressure with the water spraying zone ( 6 ) comprises a steam-extraction system ( 10 ) that extracts steam produced within the water spray zone; wherein the steam-extraction system ( 10 ) is comprised of a compressor to compress said extracted steam and inject the compressed steam into a dedicated exchanger unit so that said compressed steam acquires a temperature and a pressure suitable for power co-generation.