IPPE FEATURED EQUIPMENT

In falling film evaporators, liquid and vapors flow downwards in parallel flow. The liquid to be concentrated is preheated to boiling temperature. An even thin film enters the heating tubes via a distribution device in the head of the evaporator, flows downward at boiling temperature, and is partially evaporated. This gravity-induced downward movement is increasingly augmented by the co-current vapor flow.
Falling film evaporators can be operated with very low temperature differences between the heating media and the boiling liquid, and they also have very short product contact times, typically just a few seconds per pass. These characteristics make the falling film evaporator particularly suitable for heat-sensitive products, and it is today the most frequently used type of evaporator.Because of the low liquid holding volume in this type of unit, the falling film evaporator can be started up quickly and changed to cleaning mode or another product easily.
Falling film evaporators are highly responsive to alterations of parameters such as energy supply, vacuum, feed rate, concentrations, etc. When equipped with a well designed automatic control system they can produce a very consistent concentrated product.
The fact that falling film evaporators can be operated with small temperature differences makes it possible to use them in multiple effect configurations or with mechanical vapor compression systems in modern plants with very low energy consumption.In evaporators with Mechanical Vapor Recompression (MVR), the heating medium in the first effect is vapor developed in the same effect, compressed to a higher temperature by means of a high-pressure fan (MVR). Any excess vapor from the high heat section is condensed or may be utilized in a high concentrator.
IPPE has Available two Unitech Titanium falling film evaporators manufactured in 1993, These Evaporators include an Incoloy 825 vapor body which makes up an 15,862 Sq Ft heat transfer section made of 872 Grade 2 Titanium ( 2"OD tubes x 36' long ) and MVR compressor driven by a 500HP motor. The train’s design capacity is 92GPM ( distillate flow 83.95 GPM ). This converts to 44,457 lbs/hr water evaporation. International Process Plants and Equipment supplies evaporators, distillation plants, crystallizers and other thermal concentration / separation systems to the food, dairy, beverage, pharmaceutical, chemical (organic and inorganic), carbohydrate and food ingredients industries.