CE Certification Falling Film Evaporation Plant for Heat-Sensitive Liquids - Top China Suppliers & Factory Solutions Manufacturers, Suppliers

A falling film evaporator is an essential technology for efficiently concentrating heat-sensitive liquids, and it is widely used by suppliers and factories in China. This innovative system operates by allowing the feed liquid to form a thin film that descends along heated vertical tubes, where partial evaporation occurs. The generated vapor flows parallel to the liquid, which enhances the overall concentration process. This setup ensures a brief residence time and maintains low operating temperatures, significantly preserving product quality. To achieve optimal performance, it is crucial to ensure proper liquid distribution and complete surface wetting, which prevents fouling and ensures high thermal efficiency and operational stability. Choose a reliable supplier or factory in China to maximize the benefits of using a falling film evaporator in your production processes

Product Description

Description

The liquid feed is introduced at the top of the calandria, where a distribution system ensures the formation of a uniform liquid film along the inner walls of the heating tubes. As the film flows downward under gravity, it is heated externally and begins to boil, partially evaporating along its path. The downward flow is further promoted by the co-current flow of vapor generated during boiling.

Separation of the remaining liquid film and vapor takes place in the lower section of the calandria and is completed in a downstream centrifugal droplet separator. To prevent dry spots—which can cause fouling and deposit accumulation—it is critical to maintain complete and even wetting of the entire heating surface. This can be achieved by using longer heating tubes, dividing the evaporator into multiple compartments, or implementing product recirculation.

Falling Film Evaporation Plant Detail (1)
Falling Film Evaporation Plant Detail (2)
Falling Film Evaporation Plant Detail (3)
Particular Feature
  • Best product quality, gentle evaporation, mostly under vacuum, and extremely short residence times in the evaporator.
  • Simple process control and automation.
  • Flexible operation, quick start-up and easy switchover from operation to cleaning, uncomplicated changes of product.
  • High efficiency heat transfer — it is possible to design multiple-effect, thermal vapour recompression, mechanical vapour recompression.
Fields of Application
  • 🌿 Particularly suited for temperature-sensitive products, such as dairy product, fruit juices, plant extracts, sugar, blood plasma.
  • 🌿 For liquids which contain small quantities of solids and have a low to moderate tendency to form incrustations.
Key Advantages
Advanced Energy-Efficient Technologies

Integration of multi-effect evaporation and mechanical vapor recompression (MVR) systems significantly reduces energy consumption and operational costs.

⚙️ High-Quality and Durable Construction

Utilization of high-grade stainless steel and industrial alloys ensures corrosion resistance, durability, and long-term reliability under continuous operation.

🛠️ Comprehensive Customization and Turnkey Solutions

Tailored system design, layout, and material selection to meet specific client requirements, supported by end-to-end services from simulation to commissioning and training.

🖥️ Precision Automation and User-Friendly Control

Equipped with advanced PLC and HMI systems for real-time monitoring, precise process adjustments, remote control capabilities, and predictive maintenance.

🏆 Stringent Quality Assurance and Global Compliance

Rigorous testing and inspection processes aligned with international standards (ISO, CE, ASME), ensuring safety, performance, and worldwide regulatory compliance.

Frequently Asked Questions

? What is a falling film evaporator and how does it work?

A falling film evaporator introduces liquid feed at the top of the calandria, where it forms a thin, uniform film along the inner walls of vertical heating tubes. As the film flows downward by gravity, it is heated externally, causing partial evaporation. The co-current vapor flow assists the downward movement, and the remaining liquid and vapor are separated in the lower section and a centrifugal droplet separator.

? What products are best suited for falling film evaporation?

Falling film evaporators are particularly 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?

To prevent dry spots and fouling, it is essential to maintain complete and even wetting of the entire heating surface. This can be achieved by using longer heating tubes, dividing the evaporator into multiple compartments, or implementing product recirculation to ensure consistent liquid 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 consumption and overall energy costs, making the process highly efficient for large-scale industrial applications.

? What automation and control features are available in these evaporation systems?

These evaporation systems are equipped with advanced PLC and HMI control platforms that enable real-time process monitoring, precise parameter adjustments, remote control capabilities, and predictive maintenance functions, ensuring stable, reliable, and user-friendly operation.

? Are customized falling film evaporation solutions available?

Yes. Comprehensive customization and turnkey solutions are provided, including tailored system design, layout planning, and material selection to meet each client's specific process requirements. Services cover the full project lifecycle from simulation and engineering to installation, commissioning, and operator training.

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