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Perundurai - 638 056. - +91 98650 48581
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Energy efficiency of SSE Evaporators and Crystallizers is a crucial consideration during the designing of each customer’s specific application. Energy efficient systems utilize waste heat, multiple effects, mechanical vapor recompression (MVR) and/or thermal vapor recompression (TVR).
The evaporation duty is separated into stages operating at different temperatures. External heat drives the first effect of the evaporator, with subsequent effects being driven by vapor generated from the previous higher temperature effect. Product may be passed through the evaporator in forward, back or mixed flow configurations. Additional efficiency is achieved with the use of regenerative heaters, condensate heaters and vapor heaters.
SSE’ Forced Circulation Evaporators are normally used for liquids which are prone to fouling, scaling, crystallizing or for those which are inversely soluble or while concentrating thermally de-gradable materials. Here high re-circulation rate allows high liquor velocities through the tubes which help to minimize the buildup of deposits or crystals along the heating surface.
preferably used for concentration of solutions containing encrusting substances.
Normally used for liquids which are prone to fouling, scaling, crystallizing or for those which are inversely soluble or while concentrating thermally de-gradable materials. Here high re-circulation rates allows high liquor velocities through the tubes which
help to minimize the build up of deposits or crystals
along the heating surface.
The falling film evaporators can be operated with a low temperature difference and since the product residence time is very less, they are best suited for liquids which are temperature sensitive, have a high rate of specific heat transfer, particularly for non-crystalline solutions. Having low liquid holding volumes, the falling film evaporators are very easy to operate, clean, switch to another product and are extremely sturdy, thus the most frequently used types.
Clean and are extremely sturdy, thus the most frequently used types.
Caution must be used to ensure a continuous film wetting rate and to prevent
nucleate boiling; otherwise, the rate of heat
transfer surface will increase.
SSE’ Rising Film Evaporators operate on a “Thermo-Siphon” principle. Feed product enters the bottom of the heating tubes and as it heats, steam begins to form. The upward force of this steam produced during the boiling causes liquid and vapors to flow upwards in parallel flow.
At the same time the production of vapor increases and the product is pressed as a thin film on the walls of the tubes, and the liquid rises upwards.
This co-current upward movement against gravity has the beneficial effect of creating a high degree of turbulence in the liquid.
This is advantageous during evaporation of highly viscous products and products that have a tendency to foul the heating surface
SSE Process is a leading designer and manufacturer of a wide range of process solutions and customized process equipment and turkey plants for evaporation, crystallization, thermal separation, drying, desalination, heat-transfer and vacuum for all industries. We combine an innovative approach, with an unparalleled depth of knowledge, to develop cost effective, practical solutions for the most challenging separation process. Designed
and built to exacting standards, our powerful
technologies have enabled us to succeed, where
our competitors have failed.
SSE Process agitated thin film evaporators and dryers are used to concentrate, refine
or recover a valuable product through distillation or similar thermal separation processes,
Due to its inherent design features, it is ideal for thermal treatment of solutions and
heat sensitive products, where reduced operating temperatures and vacuum operating
pressures are desirable.