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China Falling Film Evaporation Plant Suppliers | High-Quality Factory Solutions for Heat-Sensitive Liquid Concentration

Discover the efficiency of our falling film evaporator, designed to concentrate heat-sensitive liquids while preserving product quality. This innovative system, manufactured by a leading China supplier, utilizes a thin film that flows down vertically heated tubes, allowing for effective evaporation. The generated vapor flows parallel to the liquid, enhancing the concentration process. With a short residence time and low operating temperature, our equipment maintains optimal product integrity. To ensure high thermal efficiency and operational stability, proper liquid distribution and complete surface wetting are essential, making our factory's technology a reliable choice for your evaporation needs.

    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

    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 heating tubes. As the film flows downward under gravity, it is heated and partially evaporated. The resulting vapor and remaining liquid are then separated in a centrifugal droplet separator at the bottom.
    What 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 effective for liquids with small quantities of solids and a low to moderate tendency to form incrustations.
    How does falling film evaporation prevent fouling and dry spots?
    To prevent dry spots and fouling, it is essential to maintain complete and even wetting of the entire heating surface. This can be achieved through the use of longer heating tubes, dividing the evaporator into multiple compartments, or implementing product recirculation systems.
    What energy-saving technologies are available for falling film evaporators?
    Falling film evaporators can be designed with multiple-effect evaporation, thermal vapour recompression (TVR), and mechanical vapour recompression (MVR) systems. These technologies significantly reduce steam and energy consumption, lowering overall operational costs.
    What international standards do Zongheng evaporators comply with?
    Zongheng evaporators are designed and tested in accordance with internationally recognized standards including ISO, CE, and ASME, ensuring safety, high performance, and compliance with global regulatory requirements across various industries.
    Can Zongheng provide customized falling film evaporation systems?
    Yes. Zongheng offers comprehensive customization and turnkey solutions, including tailored system design, layout planning, and material selection to meet specific client requirements. Full support is provided from initial simulation and engineering through to commissioning and operator training.