Industrial Waters Evaporators Srl (IWE) products

Evaporators fed by hot water or steam, in mono version, HWS ME series, with dipped plate heat exchangers. The HWS ME series of evaporators powered by thermal energy already available in the factory, in the form of hot water or steam, is a vacuum evaporation/concentration plant with plate heat exchangers placed directly inside the boiling boilers and immersed in the liquid to be treated. hese vacuum evaporators/concentrators use, for the condensation phase of the vapours, the cold water available in the company, usually coming from closed-circuit dry-coolers or evaporative towers, which can be supplied as a complement to the evaporation plant.

Evaporators supplied with hot water or steam, in Double Effect version with immersed plate exchangers. The HWS DE series evaporators are energy-efficient plants. As with the HWS ME series, these vacuum evaporators/concentrators require thermal energy, but only to power the first evaporative stage. The second stage, thanks to a higher vacuum value than the previous stage, allows to operate with a lower boiling temperature and it is therefore possible to exploit the thermal energy of the evaporate produced in the first evaporative stage to feed the second evaporative stage for free.

The evaporators of the HWS TE series are even more energy-efficient systems. As with the previous Double Effect version, the HWS TE series uses the thermal energy of the evaporate produced by the previous evaporation stage to feed the third evaporation stage free of charge, thus further improving the energy efficiency of the system.

In the range of thermally powered evaporation systems, the HWS R series is designed to meet the need for very high density concentrates and for the evaporation of extremely fouling products for heat exchangers. By means of an automatic motorized scraper, which continuously keeps the heat exchange surfaces clean, higher concentrations are obtained than with other evaporative systems. The final concentrate will eventually be discharged by means of a diaphragm or progressive cavity type pump, or by placing the system above a raising frame, so that discharge through the bottom discharge valve can be made directly into a crystal separation system.