METHOD AND ARRANGEMENT FOR COOLING A FIBROUS WEB

摘要

The invention relates to a method for cooling a fibrous web (W) in the contact region (K) between the fibrous web and a cooling surface, the fibrous web being supported by at least one supporting surface (M) in the said contact region (K), whereby the fibrous web is cooled so that the cooling capacity is mainly transferred to the fibrous web by conduction. In the method, at least one supporting surface (M) and the surface of the fibrous web (W) and at least one cooling surface and the surface of the fibrous web (W) are arranged in a mutual contact in at least a portion of the contact region (K) by pressing the supporting surface/surfaces (M) and the fibrous web (W) and the cooling surface and the fibrous web (W) towards each other at such a compression pressure (P) that the evaporation temperature of the water in the fibrous web rises and that the effective contact area between the fibrous web (W) and the surface that is intended to cool the same becomes sufficient for the cooling capacity.