| 摘要 |
<p>Heat-exchanger or film evaporator with mechanical cleaning and / or scraping of heat-exchanging surfaces is resolving so that in the axial middle at least one heat exchange tube (1) is a free guide tube (2), which is one of its end pivotally supported on a supporting element (3) and at its other end connected with a rotating mechanism (4), whereby the each guide tube (2) is provided with a system of the front and of rear cut-out sets (5, 6) so that into the each front and rear cut-out set (5, 6) free falls a self pressure cleaning and / or a scraping blade (7) comprises two arms (8) and a cross member (9), of which to the inner side gets of a nose (10) with a distance sliding surface (11), whereby the cross member (9) comprises the cleaning / or scraping surface (12), which fitted on the wall of the heat exchange tube (1).</p> |
