In the global chemical process industries (CPI), food processing, and wastewater treatment sectors, the term Falling Film Evaporator is widely recognized. However, depending on regional engineering standards, specific application scenarios, and system integrations, this technology is also known by several other terms:
Understanding these terminologies is crucial for global procurement teams when drafting technical specifications and ensuring alignment with manufacturers like Jiangsu Zongheng, who design systems compliant with both European (CE) and American (ASME) standards.
The performance of a falling film evaporator depends heavily on the uniform distribution of feed liquid to all tubes. Jiangsu Zongheng utilizes advanced distribution plates and overflow weir designs to prevent dry-out, minimize fouling, and maintain a continuous, uniform film down the inner tube walls.
For heat-sensitive products like starch, proteins, and pharmaceuticals, exposure to high temperatures must be minimized. Our falling film systems ensure a short residence time (often measured in seconds) and low operating temperatures under vacuum, preserving the chemical and physical properties of the concentrate.
To optimize operational expenditures (OPEX), we integrate Mechanical Vapor Recompression (MVR) or Thermal Vapor Recompression (TVR). By compressing and reusing the secondary vapor as the heating medium, energy consumption is reduced by up to 90% compared to traditional multi-effect systems.
Operating pressure vessels globally requires strict adherence to safety and quality regulations. Jiangsu Zongheng provides comprehensive compliance support for international markets:
We provide complete documentation, including material test reports (MTRs), non-destructive testing (NDT) records, hydrostatic test certificates, and localized installation support to ensure smooth commissioning at your facility.
Located in Yixing, Jiangsu—the heart of China's industrial manufacturing cluster—we have direct access to high-grade stainless steel (SUS304, SUS316L, Duplex 2205) and titanium alloys. This ensures shorter lead times and highly competitive material costs.
Our 22,000 m² production workshop is equipped with automatic tube-to-tubesheet orbital welding machines, large-scale rolling machines, CNC machining centers, and advanced non-destructive testing (NDT) facilities, ensuring precision fabrication.
With over 20 dedicated engineers and 3 senior thermal design experts, we customize each falling film evaporator system using thermodynamic simulation software to match the specific fluid properties and utility constraints of our clients.
Established as Yixing Yangxi Light Industrial Machinery Factory, covering 15 mu with 45 employees, focusing on basic concentration equipment.
Obtained ISO9001 quality management certification, establishing a standardized quality control system.
Recognized as a Jiangsu Provincial High-Tech Enterprise, accelerating R&D in energy-efficient evaporation technologies.
Obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for pressure vessels.
Acquired the ASME "U" Stamp authorization, marking our entry into the high-end global pressure vessel market.
Obtained international quality system certification (Certificate No.: 45021), aligning our processes with global standards.
Now covering over 54,000 m² with a 22,000 m² workshop, employing 3 senior engineers, 20+ engineers, and 120 total staff.
Our falling film evaporators are widely used to concentrate glucose, maltose, fructose, and starch washing wastewater. The low temperature difference design prevents caramelization and maintains high product purity.
In bio-ethanol production, the thin-stillage concentration process utilizes multi-effect falling film evaporators to recover Distillers Dried Grains with Solubles (DDGS), optimizing plant thermal efficiency.
For Zero Liquid Discharge (ZLD) systems in chemical and petrochemical plants, falling film evaporators act as pre-concentrators before crystallizers, reducing overall energy costs and footprint.
Zongheng provides energy-efficient, high-performance evaporation solutions tailored to process conditions. Our systems are engineered to optimize thermal efficiency and minimize operational costs across diverse industrial applications.
A falling film evaporator efficiently concentrates heat-sensitive liquids. The feed liquid forms a thin film flowing down heated vertical tubes, where it partially evaporates. Vapor generated flows parallel to the liquid, enhancing the process. It ensures a short residence time and low operating temperature, preserving product quality. The system requires proper liquid distribution and complete surface wetting to prevent fouling and maintain high thermal efficiency and operational stability.
Zongheng is a premier Chinese manufacturer specializing in forced circulation evaporation plants. These systems are ideal for processing high-viscosity liquids, scaling fluids, or crystallizing solutions where high flow velocities prevent tube fouling.
Mechanical Vapor Recompression (MVR) plants offer significant operational savings by recycling latent heat from waste steam. By compressing the vapor, its temperature and pressure are raised, allowing it to act as the heating medium for the same process.
This design integrates multiple waste heat sources—including drying vapors, flash steam, and hot process streams—to drive the evaporation process, significantly reducing the plant's overall primary energy demand.
Jiangsu Zongheng's single screw press efficiently dewaters solid-containing slurries, such as corn fiber, germ, and paper pulp. The mechanical compression system ensures high cake dryness and reliable continuous operation.
Jiangsu Zongheng's ZXG Tube Bundle Dryers ensure safe, low-oxygen drying via indirect steam heating. The rotating tube bundle continuously tumbles the material, ensuring uniform moisture removal for starch, corn gluten, and chemical products.
Jiangsu Zongheng's MQG Airflow Dryer employs high-speed hot air to suspend and fluidize the material. By utilizing impulse airflow generated from precisely varied tube diameters, it continuously tumbles the particles while conveying them. This design ensures rapid, uniform, and efficient drying throughout the entire transportation process within the system.
Contact our engineering team today to discuss your specific concentration, drying, or pressure vessel requirements. We provide customized, energy-efficient solutions with full global compliance support.
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