| 摘要 |
Vacuum cooling tunnel, in particular for cooling water containing products, such as for example salad, comprising a horizontal cylindrical housing 1 having an access door at at least one end for supplying or removing loads 7 of products on pallets 6 or the like, which loads 7 have a rectangular cross-section, in which in the spaces between the upstanding walls of the most width and acceptable load 7 and the cylindrical wall condensing bodies 4,5 extending in longitudinal direction are arranged consisting of parallel pipes through which a cold means is fed, which pipes are arranged within an enclosure, the open upper side of which communicates with the interior of the tunnel 1 and to which at least one vacuum pump is connected for generating an under pressure in the interior of the tunnel, whereby the horizontal cross-section of the passage for the medium to be withdrawn from the interior of the tunnel 1 and moved in each condensing body 4,5 perpendicular to the pipes by the vacuum pump(s) diminishes stepwise or continuously from the open upper side of the condensing body 4,5. |
