TUBULAR OVEN Russian patent published in 1994 - IPC

FIELD: oil industry. SUBSTANCE: tubular oven has a base with supports, crown and side walls, convective and radiant chambers mounted on the supports and accommodating the blocks of coil tubes. The radiant chamber is made sectional. The convective and radiant chambers are separated by a bulky vertical girder installed on a base made as a hearth frame. The girder along with the walls of the convective and radiant chambers forms a force spatial bearing framework, and the blocks of the coil tubes are formed by the straight sections of the tubes interconnected by laterals with the bending radius equal to 3 or 4 diameters of the tubes. EFFECT: more efficient heat treatment process. 2 cl, 3 dwg