FLUE STACK Russian patent published in 1996 - IPC

FIELD: civil engineering. SUBSTANCE: stack includes a trunk of external and internal pneumatic shells made self-bearing, cylindrical of composition material with stiffness ribs installed between them. The ribs are generated with surfaces of spiral pneumatic hose of composite material. Attachment of the hose to the form generating pneumatic shell and hose sectors to one another is carried out at the expense of adhesion of composition material matrix during its solidification. Fiber reinforcing members are used as composition material base. Ceramic produced by self-propagating temperature synthesis is used as matrix. Number of helically laid hoses may exceed one. EFFECT: increased strength, chemical stability, improved thermal insulation, increased purification degree of exhausting gases, decreased material consumption, cost and installation time. 1 dwg