Sealing members for gas preheaters, and sealing structures using such sealing members for gas preheaters.

摘要

A sealing member is adapted to seal a gap between an outer peripheral portion of a rotor and a housing of a gas preheater or a gap between a side face of the rotor and a radial sealing plate. This sealing member (24) includes a main body made of an alumina ceramic and a film formed on a surface of the main body. The film is made of a glaze having a coefficient of thermal expansion smaller than that of the main body. A sealing structure using such a sealing member is also disclosed for sealing the gas preheater. Further, it may be that the sealing member is at least partially made of an inorganic glass and/or a wear resistive ceramic, and a sealing structure is provided with a solid lubricant-molded body (30) to be pressed against a sliding surface of an opponent member on which the sealing member slides.