Lining in order to produce a non - laminar flow of liquid, pipes thus covered, and a method for producing such a flow

摘要

PICT:0797743/IV (a)/1 Containers or tubes through which liquids flow, e.g. tubular columns for continuous polymerization processes, viscose de-aerating apparatus, and the viscose supply tubes of spinning machines, are filled over at least part of their length with a chain, formed of thin-walled cylinders 1, which maintains an equal velocity of flow over the total flow cross-section. In a continuous process for the polymerization of e -caprolactam, a tubular column through which the polymerization mixture flows is filled with the chain to about half the height of the column and in a viscose de-aerating apparatus a vertical heating tube is completely fitted with a stainless steel chain.