FIELD: power industry.
SUBSTANCE: steam generator pipe has inner profile in the inner pipe space in order to form swirling; profile is made in the form of at least one insert containing one or several frames from plate metal with many cavities of large surface area and twisted in longitudinal direction and at least partially adjacent with its longitudinal edges to inner pipe wall.
EFFECT: designing the pipe of steam generator and once-through steam generator which has simple construction at high operating reliability and at high efficiency, low costs during the manufacture and high heat transfer characteristics during the operation.
11 cl, 6 dwg
