Turbine engine comprising a heat exchanger consisting of at least one deck between vanes

An aircraft turbomachine comprising:

• a core engine air flow stream passing through a low pressure compressor and a high pressure compressor;
• a fan air flow stream is located around the core engine air flow stream and coaxially with the core engine air flow stream;
• an inter-flow stream compartment located between the core engine air flow stream and the fan air flow stream;
• an air flow straightener acting on air passing in the fan air flow stream, the air flow straightener comprising a plurality of vanes distributed around a principal axis of the turbomachine, and decks between the plurality of vanes, each of the decks is located between respective internal radial ends of two adjacent vanes of the plurality of vanes, wherein each of the decks is separate and distant from the two adjacent vanes between which the deck is located and comprises a wall partly delimiting the fan air flow stream, and wherein a set of walls of the decks extends a radially external wall of the inter-flow stream compartment at a connecting zone at which the plurality of vanes are connected;
• and
• a pressurized air circuit draws off air between the low pressure compressor and the high pressure compressor or in the high pressure compressor, to produce a pressurized air flow that supplies at least one component of the turbomachine, said at least one component being radially located in the turbomachine closer to the principal axis of the turbomachine than the core engine air flow stream,
• wherein the pressurized air circuit comprises a heat exchanger between the pressurized air flow and air flow passing through the fan air flow stream,
• wherein the heat exchanger is formed from at least one of the decks, through which the pressurized air flow passes, said respective wall of the at least one of the decks exchanging heat between the pressurized air flow and the air flow passing in the fan air flow stream, and
• wherein the at least one of the decks forming the heat exchanger comprises a respective conduit in which the pressurized air flows, the respective conduit being tubular in shape and forming a coil presenting a plurality of bends, an air inlet port of the respective conduit being disposed at a first end of the at least one of the decks and an air outlet port of the respective conduit being disposed at a second end of the at least one of the decks, the respective conduit being secured to a radially internal face of the respective wall of the at least one of the decks by welding.