China Falling Film Evaporation Plant Suppliers - High Efficiency Factory for Concentrating Heat-Sensitive Liquids
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.
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, forming a uniform film along the heating tube walls. As it flows downward under gravity, it is heated externally and partially evaporates. The vapor and remaining liquid are then separated in a downstream centrifugal separator.
What prevents dry spots and fouling in the heating tubes?
To prevent dry spots and subsequent fouling, even wetting of the heating surface is crucial. This is achieved by utilizing longer heating tubes, dividing the evaporator into multiple compartments, or implementing product recirculation systems.
What are the primary fields of application for this system?
It is highly suited for temperature-sensitive products such as dairy, fruit juices, plant extracts, sugar, and blood plasma. It is also ideal for liquids with small solid quantities and low-to-moderate tendencies to form scale.
How does Zongheng optimize energy efficiency?
Zongheng integrates advanced energy-saving technologies, including multi-effect evaporation designs, thermal vapor recompression (TVR), and mechanical vapor recompression (MVR) systems, to drastically cut energy and operating costs.
What manufacturing and quality standards does Zongheng follow?
Zongheng uses high-grade stainless steel and industrial alloys for robust construction. All systems undergo rigorous testing and inspection aligned with international standards such as ISO, CE, and ASME to ensure global compliance and safety.