| 摘要 |
A multistage evaporation system is proposed in which the first evaporator ( 1 ) is heated via a jet wet washer ( 33 ) with superheated, air-containing waste steam, for example of a drier. The product vapor of the first evaporator stage ( 1 ) is fed via a mechanical compressor ( 67 ) to a second evaporator stage ( 3 ) for heating. The compressor ( 67 ) ensures firstly a lowering of the dew point in the evaporator space of the first evaporator stage ( 1 ) and secondly a temperature increase of the product vapor fed to the second evaporator stage ( 3 ) for heating.
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