Patent ID: 6412548
Filing Date: 2002-07-02
Classification: F22B,F23M,F28F,Y10T

Abstract:
A heat-resistant assembly for releasably attaching a heat-resistant block to a boiler tube assembly comprised of a plurality of boiler tubes and a connecting flat rib, with said heat resistant block positioned between the boiler tube assembly and combustion gases in order to protect the boiler tube assembly from the combustion gases, said heat resistant assembly comprising:an arm which protrudes from said connecting flat rib toward said heat-resistant block and which has a catch on the end; an indentation in said heat-resistant block into which said catch on said arm interlockingly engages; and at least one member disposed between the end of the arm and the indentation through which the arm engages the indentation, said at least one member being selected from the group consisting of a buffer member which absorbs thermal expansion and melts at high temperature, and a heat resistant member which enhances the strength of the engagement.