Rotary heat exchanger for gas turbine associated therewith

Details Rotary heat exchanger for gas turbine associated therewith Rotary heat exchanger for gas turbine associated therewith

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 19/04 (2006.01) F02C 7/105 (2006.01)

Patent

CA 2190480

Rotary heat exchanger for effecting thermal exchange between the inlet and exhaust gases of a gas turbine comprising a cellular ceramic disk (1), an upstream air inlet tube (6) and a downstream inlet tube (7) on either side of the disk (1) and including friction rings (13, 14) at their ends in contact with the side surfaces of the disk. The upstream friction ring (13) is urged against the disk (1) by a force generated by the inlet gas pressure acting on the rear of a plastic ring (44). The force acting on the ring (13) urges the disk (1) into contact with an equivalent force against the downstream friction ring (14), held by a resilent membrane (56).

Echangeur thermique rotatif entre les gaz d'admission et les gaz d'échappement dans une turbine à gaz, comprenant un disque (1) en matière céramique alvéolaire, un conduit d'admission d'air amont (6) et un conduit d'admission aval (7) situés respectivement de part et d'autre du disque (1) et comportant à leurs extrémités en contact avec les faces latérales du disque (1) des anneaux de friction (13, 14). L'anneau de friction amont (13) est poussé contre le disque (1) avec une force produite par la pression du gaz d'admission s'exerçant à l'arrière d'une bague plastique (44). La force de l'anneau (13) pousse le disque (1) en appui avec une même force contre l'anneau de friction aval (14), retenu par une membrane élastique (56).

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