Falling film MVR evaporator

1. Working Principle of Falling Film MVR Evaporator

The falling film MVR evaporator primarily consists of a heating chamber, separation chamber, steam compressor, and control system. Its working principle is as follows:

Material Distribution: Material enters from the top of the evaporator and is evenly distributed by the distributor onto the inner wall of the heating tubes, forming a thin film that flows downward.

Heating and Evaporation: The material is rapidly evaporated by the heating steam outside the tubes. The resulting secondary vapor is separated from the unevaporated material in the separation chamber.

Steam Compression: The separated secondary vapor is compressed by the steam compressor, increasing its pressure and temperature to raise its enthalpy, thereby producing high-quality heating steam.

Recirculation: The compressed vapor re-enters the heating chamber as a heat source to evaporate the material, achieving energy recirculation.

Condensation and Discharge: The evaporated concentrate is discharged from the bottom of the evaporator, while unused vapor or non-condensable gases are condensed in the condenser for discharge or recovery.

2. Structural Features of Falling Film MVR Evaporators

Falling Film Evaporation: Material forms a thin film inside the heating tubes, enabling high heat transfer efficiency and rapid evaporation. This is particularly suitable for evaporating and concentrating heat-sensitive materials.

Compact Design: The equipment features a compact structure with a small footprint, making it ideal for installation in spaces with limited area.

Rapid Energy Savings: By utilizing MVR technology to recover and reuse secondary steam, energy consumption is reduced. Compared to traditional evaporation techniques, energy savings of 50%-80% can be achieved.

Automated Control: Advanced automatic control systems ensure precise regulation of critical parameters like temperature, pressure, and flow rate, guaranteeing stable operation.

Low Maintenance Costs: The equipment operates reliably with minimal maintenance requirements and extended service life, reducing operational expenses for enterprises.

3. Performance Advantages of Falling Film MVR Evaporators

High Thermal Efficiency: The falling film evaporation method enables rapid evaporation at lower temperatures, enhancing thermal efficiency and reducing energy consumption.

Versatility: Suitable for processing materials of varying concentrations and viscosities, with exceptional performance in handling high-viscosity and crystallization-prone substances.

Eco-Friendly and Energy-Efficient: By recycling secondary steam, it reduces demand for fresh steam, lowers carbon emissions, and meets environmental requirements.

Operational Simplicity: High automation levels simplify operation, reduce manual intervention, and boost production efficiency.

Stability and Reliability: Equipment operates stably with low failure rates, ensuring continuous and consistent production.

4. Application Fields of Falling Film MVR Evaporators

Chemical Industry: Used for concentrating, separating, and recovering chemical raw materials, such as evaporative concentration of sodium chloride and ammonium sulfate solutions.

Pharmaceutical Industry: Concentrates drug intermediates and extracts during pharmaceutical manufacturing to ensure product quality and production efficiency.

Food Processing: Concentrates juices, dairy products, syrups, and other foods while preserving nutritional content and taste.

Environmental Water Treatment: Concentrates and recovers water resources in wastewater treatment and desalination, reducing effluent discharge and enabling resource recycling.