ViscoLine Dynamic Unit - Alfa Laval - #1

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ViscoLine Dynamic Applications The ViscoLineTM Dynamic Unit is a new generation of scraped surface heat exchangers (SSHE). The unit was designed for use in applications with a high degree of fouling and in the crystallization and evaporation of high viscosity products, with or without particulates. The ViscoLine Dynamic Unit works equally well whether installed horizontally or vertically. These units are most commonly used for fruit and vegetable purées, pulps and concentrate when long running times are needed, ketchup, dairy desserts, cooking applications, freezing applications, evaporating applications, chocolate, UHT milk, ice cream, edible fats crystallizing, chicken viscera, ice beer, etc. Standard design The ViscoLine Dynamic Unit consists of a bundle of tubes mounted inside an outer shell. The product medium flows inside these tubes, and the service medium outside. All tubes are connected in parallel. All the inner tubes include moving bars that support the scraping and mixing elements. These bars also serve to prevent fouling of the heat exchanger surface and agitate the flow in order to achieve excellent heat transfer. These bars feature reciprocal motion, and the flow of the product medium can be either single-pass or multi-pass. ViscoLine Dynamic modules are normally connected in series and grouped on a common frame. Since the unit has no mechanical seals, there is no need for any spare parts. The ViscoLine Dynamic Unit is a patented design (in Europe, USA and Japan). An IP55 electric motor drives the hydraulic pump. Standard materials Other materials are available on request. The tubular heat exchanger series from Alfa Laval ViscoLine™ Dynamic Unit Product side (tubes) Stainless steel AISI 316L, SMO254 or SAF2507 (with the rest of the surface in AISI 316L) Surface finish on Ra 0.8 ìm on the internal surface product side (tubes) and 1 ìm on the welds Service side (shell) Stainless steel AISI 304 or AISI 316 Frame Stainless steel AISI 304 (units can be angled for self-draining on request)