HEAT EXCHANGER Russian patent published in 2005 - IPC

FIELD: power engineering; low- and high-pressure regenerative systems of steam turbines or heat supply systems for water heating due to steam condensation.

SUBSTANCE: proposed heat exchanger has housing accommodating tube bank and main horizontal partitions, water inlet and water-outlet chambers with heated medium inlet and outlet pipes, and steam supply pipe running to steam space of housing; additional horizontal partition is installed in parallel with main one under each or after every one or every two main ones at distance shorter than that between main partitions; main and additional horizontal partitions are placed in casing whose upper part is attached to additional partitions on part of their outer perimeter and bottom part, to main partitions disposed under next additional partitions; the latter are joined through pressurized channels to upper main partitions. In addition, height of pressurized channel interconnecting main and additional partitions may be equal to or shorter than distance between them.

EFFECT: enhanced operating economic efficiency of heater by augmenting heat transfer due to reduction of condensate film thickness in heat-transfer surface tubes.

1 cl, 6 dwg