|
(11) | EP 2 241 848 A3 |
(12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||||||
(54) | Heat exchanger |
(57) A heat exchanger is provided in which steam locking is prevent and which allows steam
condensate generated in heat transfer tubes to quickly flow down into a condensate
outlet chamber. The heat exchanger includes a shell (1) in which a plurality of heat
transfer tubes (5) are disposed. The shell (1) has an inlet (2) for fluid to be heated
through which fluid to be heated flows in and an outlet (3) for heated fluid through
which heated fluid flows out. The heat transfer tubes (5) are penetratingly fixed,
at their ends, to a tube plate (7). The tube plate (7) has an end face covered by
partition chamber cases (8) and (9) provided with a top steam inlet (10) through which
steam flows in and a bottom condensate outlet (11) through which condensate flows
out. The tube plate (7) and the partition chamber cases (8) and (9) form, between
them, a partition chamber having a partition plate (14) partitioning the partition
chamber into a steam inlet chamber (12) having the steam inlet (10) and a condensate
outlet chamber (13) having the condensate outlet (11). The partition plate (14) has
an opening (15) through which the steam inlet chamber (12) and the condensate outlet
chamber (13) are communicated with each other, and a steam trap (16) for draining
steam condensate from the steam inlet chamber (12) into the condensate outlet chamber
(13) is connected to the opening (15) of the partition plate (14).
|