FIELD: heat-exchanging equipment, particularly tube-and-shell heat-exchangers.
SUBSTANCE: heat-exchanger comprises shell adapted to receive the first fluid and deflecting partitions installed at an angle to longitudinal heat-exchanger axis and shaped as quadrants. The partitions guide the first fluid flow into helical structure with uniform velocity. Each partition has corresponding pair of opposite flat or curved sides and a number of spaced apart orifices receiving a number of axial tubes adapted to circulate the second fluid flow. In the second embodiment heat-exchanger comprises quadrant deflecting partitions crossed with tube bundle carrying the second fluid flow and adapted to guide the first fluid flow along helical path across tube bundle. Said heat-exchanger also has reinforcing unit, which selectively unites tube bundle carrying the second fluid flow to minimize vibration and increase supporting thereof. Tube-and-shell heat-exchanger made in accordance with the third embodiment comprises the first row of quadrant deflecting partitions and the second row of quadrant deflecting partitions, which define double helical structure crossed with tube bundle carrying the second fluid flow and extending at an angle to longitudinal heat-exchanger axis to direct the first fluid flow into helical structure with substantially uniform velocity.
EFFECT: improved heat-exchanging efficiency, increased uniformity of fluid flow velocity as fluid flow passes along helical path.
20 cl, 4 dwg
