| 摘要 |
A hollow walled cylindrical revolving basket is provided with a heating medium in the hollow wall. To the inner wall are secured axially spaced flat, hollow rings whose successive inner diameters increase axially in liquid flow direction and into which rings the heating medium flows from the hollow wall. Alternate rings are provided with axial through passages at the inner wall connecting the channels between the rings. Liquid feed to be evaporated is injected into the channel between the ring with smallest inner diameter and the adjacent end wall of the basket. Concentrate is removed from the final channel and vapor is removed axially.
|
