Rising film evaporator

Get a collection of rising film evaporators here at Foeth

Whether you want a rising film evaporator to concentrate dilute solutions or a reboiler in the distillation column, Foeth provides a range of industrial equipment for your needs. We are experts in sourcing refurbished and used equipment for industrial applications. You can find cost-effective solutions for your business with our mechanically tested products. We have been in the market since 1908; hence, we have experience in selling and exchanging industrial equipment. You can find suitable evaporators for the food and chemical industries. For instance, if you make dairy products or juices, you need evaporators to concentrate products sensitive to high temperatures. Besides, you enjoy a bargain if you purchase a used product instead of new equipment.

Find refurbished or used rising film evaporators at Foeth.

Applications of the rising film evaporator working principle

A rising film evaporator has a vertical shell, liquid separator and a heat exchanger. When the liquid to be concentrated is fed into the heated tube, the vapour generated causes the liquid to rise upwards. The vapour and residual fluid are separated in the liquid separator mounted on top. The simple design delivers exceptional results useful in various industrial processes. For instance, the rising film evaporator working principle can be employed as reboilers, pre-heaters for extracting volatile components or pre-concentrators. You can use the evaporators for the thermal desalination of seawater. In food processing and juice concentration, the evaporators can work efficiently to prevent extended exposure of food products to high temperatures that compromise product quality. Hence, it is mainly used to concentrate dairy products or juices. Some companies also use evaporators in the production of polymers and effluent treatment.

What are the benefits of the rising-falling film evaporator?

Due to the shortcomings of film evaporators, some companies designed a rising-falling film evaporator that combines the advantages of both evaporator types. The first part of the evaporator is operated as a rising film, while the second part is the falling film. You can use the evaporators for foamy liquids with a high evaporation load. Using a combined evaporator increases efficiency. For instance, the low residence time of the fluid feed in the evaporator allows it to operate at higher temperatures, improving the quality of the concentrate. You will also save energy since the evaporator runs continuously. With the high heat transfer coefficient, it can accommodate foaming products. The limitation of rising films is the need for a driving force to move the film against gravity. However, combining it with the falling film evaporator means the feed enters from the top and doesn’t need a driving force, reducing the temperature of the heating medium.

Explore the variety of rising film evaporators available at Foeth.