COOLING STRUCTURE OF GAS TURBINE TAIL PIPE

摘要

A cooling structure of a gas turbine tail pipe, wherein a plate spring (6) o f shook shape in cross section is fitted, from the underside, near the other e nd (b) of an impingement cooling plate (4). The lower side one end (c) of the plate spring is fixedly welded to a rib (1d) and the upper side other end (d ) thereof is freed and allowed to abut on the impingement cooling device (4) near the other end (b) thereof by the elastic force thereof. Thus, a clearan ce formed between the impingement cooling plate (4) and a tail pipe (1) can be shielded on the rib (1d) side while avoiding that a thermal stress occurred, for example, in the rib (1b) affects the impingement cooling plate (4).