Installation of tubes for pressurising an internal enclosure in a turbomachine

摘要

The module has an inner recess (47) with radial tubes (58) that connect the recess to a compressed air stream passing in an intermediate case. The tubes have radially internal ends engaged in radial ducts (28) of the case (10) and in a radial chimney (54) of a sealed flange (56). Immobilization units immobilize the ends in the radial ducts. The chimney has sufficient radial length or dimension so that the ends of the tubes are displaceable in translation between a service position, where the ends are mounted in the ducts, and a mounting position, where the ends are withdrawn from the ducts.