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(11) | EP 1 418 265 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Heat exchanger for a dyeing machine |
| (57) A heat exchanging apparatus for increasing/decreasing dye temperature of a gas-liquid
dyeing machine, including a heat exchanger (10) installed between the inlet (31) and
outlet (32) of the dye-circulating pipe (30) of the dyeing machine (20). At least
one partitioning layer (11) is disposed in an interior of the heat exchanger (10)
to partition the interior into a gas flowing space (13) and a dye flowing space (12).
The dye flowing space (12) has a dye inlet (121) and a dye outlet (122) which are
respectively connected to the dye outlet (32) and dye inlet (31) of the dyeing machine
(20). The gas flowing space (13) has a gas inlet (131) and a gas outlet (132). The
gas inlet (131) is connected to a cold air source (40) and a steam source (50). The
gas outlet (132) is connected to a water condenser (60). Multiple tubular vacuum thermally
conductive elements (14) are inserted on the partitioning layer (11). Each thermally
conductive element (14) has two ends which respectively extend into the gas flowing
space (13) and the dye flowing space (12). By means of the high efficiency heat exchange
of the vacuum thermally conductive elements (14), the temperature of the circulated
dye can be quickly increased/decreased and more stably controlled. |