F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 11/00 (2006.01) F02C 7/28 (2006.01)
Patent
CA 2413126
A structure for separating the high and low pressure turboexpanders of a gas turbine comprises a diaphragm (31) having the function of supplying flows of cooling air, a pair of shaped plates (50', 50") fixed to the diaphragm (31) and forming a gap (52) into which is blown cooling air which is drawn from a turbocompressor (11) and is then sent to hot areas of the turboexpanders, and a sealing ring (60) supported by the shaped plates (50', 50"), designed to isolate the high pressure (12) and low pressure (13) turboexpanders and to receive and distribute the cooling air obtained from the gap (52).
L'invention porte sur une structure servant à séparer les turboexpanseurs haute et basse pression d'une turbine a gaz. Elle comprend un diaphragme (31) ayant pour fonction de fournir des flux d'air de refroidissement, un ensemble de deux plaques profilées (50' et 50") fixées au diaphragme (31) et formant un passage (52) dans lequel on souffle de l'air de refroidissement tiré d'un turbocompresseur (11). Cet air de refroidissement est alors acheminé aux secteurs chauds des turboexpanseurs. L'invention comporte enfin un anneau de scellement (60) supporté par les plaques profilées (50' et 50") lequel est conçu pour isoler les turboexpanseurs haute pression (12) et basse pression (13), ainsi que pour recevoir et distribuer l'air de refroidissement provenant du passage (52).
Craig Wilson And Company
Nuovo Pignone Holding S.p.a.
LandOfFree
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