❓ What is a falling film evaporator and how does it work?
A falling film evaporator is a type of vertical shell-and-tube heat exchanger in which liquid feed is distributed at the top of the heating tubes and flows downward as a thin film under gravity. As the film descends, it is heated externally, causing partial evaporation. The resulting vapor and concentrated liquid are then separated in the lower section of the calandria and a centrifugal droplet separator.
❓ What types of products are best suited for falling film evaporation?
Falling film evaporators are especially well-suited for temperature-sensitive products such as dairy products, fruit juices, plant extracts, sugar solutions, and blood plasma. They are also ideal for liquids containing small quantities of solids with a low to moderate tendency to form incrustations.
❓ How is fouling and dry spot formation prevented in a falling film evaporator?
Dry spots and fouling are prevented by maintaining complete and even wetting of the entire heating surface. This is achieved through methods such as using longer heating tubes, dividing the evaporator into multiple compartments, or implementing product recirculation to ensure continuous film coverage.
❓ What energy-saving technologies can be integrated into a falling film evaporation system?
Falling film evaporators can be designed with multiple-effect evaporation, thermal vapor recompression (TVR), and mechanical vapor recompression (MVR) systems. These technologies significantly reduce steam and energy consumption, lowering overall operational costs.
❓ What international standards does the falling film evaporation equipment comply with?
Our falling film evaporation systems are designed and manufactured in compliance with internationally recognized standards including ISO, CE, and ASME. Rigorous testing and inspection processes are applied throughout production to ensure safety, performance, and global regulatory compliance.
❓ Can the falling film evaporation system be customized for specific industrial requirements?
Yes. We offer comprehensive customization and turnkey solutions, including tailored system design, layout planning, and material selection based on specific client requirements. Full support is provided from initial simulation and engineering through to installation, commissioning, and operator training.
Zongheng
