SMOKE STACK MODULE (VERSIONS) Russian patent published in 2013 - IPC E04H12/28 F23J13/02 

FIELD: construction.

SUBSTANCE: smoke stack module has pipe-in-pipe design and comprises an external metal bore and an inner metal gas relief pipe, the gap between which is filled with a heat insulation material, at least two gaskets tightly closing the specified gap on the top and bottom, and a support accessory arranged at the bottom of the module. The heat insulation material does not expand during heating, the outer side surface of gaskets has the shape of the inner surface of the external bore, the internal side surface of the gaskets has a shape of the external surface of the gas relief pipe, the height of gaskets makes 0.01-0.15 of the gas relief pipe height, gaskets are made of a solid heat insulation material, the heat conductivity coefficient is close to the heat conductivity coefficient of the heat insulation material, the external metal bore is made in the form of a hollow part of alternating section, and the metal gas relief pipe is made in the form of a truncated cone, besides, they are installed with narrowed parts in opposite directions and are equipped with limiters. Also the versions of the smoke stack module are described.

EFFECT: increased reliability and increased service life of a smoke stack module and a stack assembled from such modules.

73 cl, 1 tbl, 9 dwg