Falling film evaporator is a reduced-pressure distillation unit for concentrating liquid. The liquid to be vaporized is sprayed onto the heat exchange tube from the upper heat exchanger, and a thin liquid film is formed on the heat exchange tube. In this way, the static liquid level pressure is reduced when the liquid is boiling and evaporating, so as to improve the heat exchange and evaporation efficiency. It is commonly used in food, medical, chemical and other related industries.
| Project | Single-effect | Double-effect | Triple-effect | Four-effect | Five-effect |
| Water Evaporation Capacity (kg/h) | 100-2000 | 500-4000 | 1000-5000 | 8000-40000 | 10000-60000 |
| Steam Pressure | 0.5-0.8Mpa | ||||
| Steam Consumption/Evaporation Capacity (With Thermal Compression Pump) | 0.65 | 0.38 | 0.28 | 0.23 | 0.19 |
| Steam Pressure | 0.1-0.4Mpa | ||||
| Steam Consumption/Evaporation Capacity | 1.1 | 0.57 | 0.39 | 0.29 | 0.23 |
| Evaporation Temperature (℃) | 45-95℃ | ||||
| Cooling Water Consumption/Evaporation Capacity | 28 | 11 | 8 | 7 | 6 |
| Remark: In addition to the specifications in the table, can be separately designed according to customer’s specific material. | |||||
The whole system is reasonable designed, nice appearance, high stability, high energy saving and low steam consumption
The concentrate rate is big and time is short, the forced circulation could evaporate the high viscosity material.
The special design could achieve the easy operation and able to change the evaporate effect according to different products.
The steam temperature is low, the heat will be used fully and the material could be heated evenly. It applies to concentrate the heat-sensitive material.
The material could be heated evenly through the forced circulation. The coefficient of the heater transfer in the tubular is high enough to avoid the “Dry wall” issue.
The material goes in the separator and be separated again, it enhances the effect of the separation.
The evaporator has the advantage of compact designed, small space occupation and straightforward layout, it represents the trend of the development of the big evaporator.
It could achieve continuous input and discharge materials. It is also able to control the liquid level and concentration according to your requirement.
The evaporated volume could be designed according to your requirement.
* It has short heating time, fits for heat sensitive product. Continuous feeding & discharging, product could get concentrated in one time, and retention time is less than 3 minutes
* Compact structure, it could finish product pre-heating and concentrating in one time, to save the extra cost of pre-heater,
reduce the risk of cross contamination, and occupied space
* It fits for processing high concentrated & high viscosity product
* Three effect design saves steam
* The evaporator is easy for clean, there’s no need of dismantle when cleaning the machine
* Half-automatic/automatic operation
* No product leakage
Food & Dairy: Milk/concentrate production, fruit juice concentration, coffee/tea extracts.
Pharmaceutical: Antibiotic concentration, herbal extract purification, solvent recovery.
Chemicals: Salt concentration, polymer synthesis, wastewater reduction.
Environmental: Zero liquid discharge (ZLD) systems, brine concentration.
Renewable Energy: Bioethanol production, algae processing.
Proven Reliability: 20+ years of engineering expertise with 300+ global installations.
Cost Savings: Up to 60% lower operating costs compared to forced circulation evaporators.
Quality Preservation: Maintains product color, flavor, and bioactive compounds.
Sustainability: Reduced carbon footprint and water usage through energy integration.
Full Compliance: Meets GMP standards.
Lifetime Support: Technical supporting, spare parts availability, and service teams.
The raw material liquid is distributed into each evaporation pipe unfirmly, under the function of gravity, liquid flow from top to bottom, it becomes the thin film and heat exchanging with steam. Generated secondary steam go along with the liquid film, it increases the liquid flow speed, heat exchanging rate and reduces the retention time. Fall film evaporation fits for heat sensitive product and there’s very less product loss because of bubbling.
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