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Jiangsu Zongheng Industrial Evaporati...

Falling Film Evaporation Plant

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China Suppliers Factory of High-Efficiency Falling Film Evaporation Plant for Heat-Sensitive Liquids

Discover the efficiency of our falling film evaporator, a cutting-edge solution designed for concentrating heat-sensitive liquids in the heart of China. This innovative technology allows the feed liquid to form a thin film that flows down specially heated vertical tubes, enabling partial evaporation while maintaining product integrity. The generated vapor flows parallel to the liquid, enhancing the overall evaporation process. With a short residence time and low operating temperatures, our evaporator preserves the quality of sensitive products. As a leading supplier and factory in the industry, we emphasize the importance of proper liquid distribution and complete surface wetting to prevent fouling, ensuring high thermal efficiency and operational stability. Trust our expertise to meet your processing needs with precision and reliability.

Product Details

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.

Advantages of Zongheng

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

How does a falling film evaporator work?

The liquid feed is introduced at the top of the calandria, where a distribution system forms a uniform liquid film along the inner walls of the heating tubes. As the film flows downward under gravity, it is heated externally, boils, and partially evaporates. The remaining liquid and generated vapor are then separated at the lower section of the calandria and in a downstream centrifugal droplet separator.

How do you prevent dry spots and fouling in the evaporator?

To prevent dry spots that cause fouling and deposit accumulation, complete and even wetting of the heating surface is critical. This is achieved by using longer heating tubes, dividing the evaporator into multiple compartments, or implementing product recirculation.

Which products are best suited for falling film evaporation?

They are particularly suited for temperature-sensitive products such as dairy products, fruit juices, plant extracts, sugar, and blood plasma. They are also ideal for liquids containing small quantities of solids with a low to moderate tendency to form incrustations.

What energy-efficient options does Zongheng offer?

Zongheng integrates multi-effect evaporation, thermal vapour recompression (TVR), and mechanical vapour recompression (MVR) systems to significantly reduce energy consumption and overall operational costs.

Are Zongheng's evaporation systems customizable?

Yes, Zongheng provides comprehensive customization and turnkey solutions. We tailor the system design, layout, and material selection (such as high-grade stainless steel and industrial alloys) to meet specific client requirements, supporting you from simulation to commissioning.