Yiwu Weihao Machinery Equipment Company single-effect falling film evaporator is engineered to deliver dependable performance for a wide range of industrial evaporation applications. As the most basic and cost-efficient configuration, it provides a reliable solution for processes where energy consumption is not a primary limiting factor, or for smaller production volumes where multi-effect systems may be over-specified.
Feed Preparation: Raw liquid (juice, milk, extract, chemical solution, etc.) is pre-filtered and preheated to an optimal temperature (typically 45–60°C) to ensure smooth flow and reduce viscosity.
Film Formation: The preheated liquid is evenly distributed across the inner walls of vertical heating tubes via a precision distributor, forming a thin, falling film. This design maximizes the heat transfer surface area.
Evaporation: The heating medium (steam or hot water) heats the liquid film. Under vacuum conditions (typically -0.04 to -0.08 MPa), the liquid boils at low temperatures (50–80°C), minimizing thermal degradation of heat-sensitive components.
Vapor Separation & Removal: The generated vapor is separated from the concentrated liquid in a demister and then condensed in a condenser. The vapor is either recovered for reuse or discharged.
Continuous Discharge: The concentrated product is continuously discharged from the bottom of the evaporator, with concentration ratios adjustable to meet specific process requirements (usually 1.2:1 to 8:1).
Cost-Effective Solution: Lower initial investment and simpler design compared to multi-effect systems, making it ideal for small to medium production volumes or budget-conscious projects.
Reliable & Low Maintenance: Fewer components and a straightforward design translate to lower operational costs, easier upkeep, and high reliability with minimal downtime.
Gentle Processing: Falling film technology ensures short residence time (3–8 seconds) and low-temperature operation under vacuum, preserving the flavor, color, and nutritional value of food and beverage products.
High Heat Transfer Efficiency: The thin liquid film promotes rapid and uniform heat transfer, enabling fast evaporation rates and stable throughput.
Hygienic & Safe: Constructed from food-grade 316L/304 stainless steel for product contact parts, fully compliant with FDA, GMP, and ISO 22000 standards. Features a CIP (Clean-in-Place) system for easy sanitation.
Compact Footprint: The vertical, tube-in-shell design occupies less space, making it suitable for facilities with limited area.
| Parameter | Specification |
|---|---|
| Model | SF-FF-50 to SF-FF-1500 (Customizable) |
| Processing Capacity | 50 – 5000 L/h (varies by liquid type and concentration) |
| Operating Vacuum | -0.04 ~ -0.08 MPa |
| Boiling Temperature | 50 – 80°C |
| Heating Medium | Steam (0.2–0.6 MPa) or Hot Water |
| Material of Construction | 316L/304 Food-Grade Stainless Steel (contact parts) |
Food & Beverage: Fruit juice concentration, dairy (milk, condensed milk), vegetable juice (tomato, carrot), honey, syrups, and herbal infusions.
Pharmaceutical & Biotechnology: Herbal extract concentration, tincture processing, and small-batch API purification.
Chemical Industry: Low-volume solvent recovery, salt solution concentration, and fine chemical processing.
Environmental Engineering: Small-scale industrial wastewater concentration and brine processing.
We provide comprehensive solutions for your single-effect falling film evaporator requirements:
Application Consultation: Expert advice to determine if a single-effect configuration is optimal for your specific process and production scale.
Custom Design: Tailor the unit to your liquid properties, target concentration, and site constraints.
Professional Manufacturing: Strict quality control to ensure durable, reliable equipment with a long service life.
Installation & Commissioning: On-site support for seamless integration into your production line.
Training & Support: Operator training and technical documentation to ensure optimal performance.
After-Sales Service: Lifelong maintenance support, spare parts supply, and troubleshooting.
Contact Us Today for a free technical consultation and customized quotation.
Email: jn670209@gmail.com | Website: www.onlyhaomachine.com