OUR MODEL COMPONENTS OPERATION RFQ

AVAILABLE MODELS AND MAIN TECHNICAL CHARACTERISTICS

MVR systems are the most energy-efficient way to run a crystallizer on electricity alone.

Rather than condensing the vapour it produces and discarding the latent heat, an MVR unit compresses that vapour, raising its pressure and saturation temperature, and returns it to the heat exchanger as the heating medium, which results into great OPEX reduction for continuous, high-volume applications.

Our mechanical vapor recompression crystallizers are built to meet each customer’s specific requirements.

The DESALT MVR FC is our mechanical vapour recompression crystallizer , built for aqueous streams carrying high contaminant loads and intended to precipitate salts from dissolved solids.

DESALT MVR FC
DESALT MVR FC

Technology: Mechanical Vapor Recompression (MVR) / Forced Circulation (FC)

Capacity (l/hour): 600 to 2,500

Electricity consumption per 1 m³ of distillate produced: 64 kWh/m³

Vacuum: ≈ 700 mbar

Evaporation temperature: ≈ 90 °C

Access data sheet

KEY ADVANTAGES

  • The lowest specific consumption in the electrical range: At 64 kWh/m³ of distillate across all models, a MVR crystallizer runs at roughly a third the energy cost of a heat pump unit, unbeateable when running continuosly.
  • Forced circulation handles difficult streams. The recirculation pump keeps flow across the exchanger high enough to prevent scaling, so the unit is able to treat streams with high contaminant loads that would foul other models within hours.
  • The highest capacity rates in the electric range. The MVR crystallizer range breezes past through what heat pump equipment can deliver while still requiring only an electrical connection in normal operation.

MAIN COMPONENTS

DESALT MVR FC

The following video showcases the DESALT MVR FC evaporator/crystallizer. The video highlights all the main components and benefits of mechanical vapor recompression systems.

OPERATION OF OUR MVR CRYSTALLIZERS

1

Feed introduction and preheating

The wastewater or liquid stream enters the system and is preheated to reach the required evaporation conditions.

Flow rate, temperature, and vacuum conditions are stabilized before the main evaporation process begins.

2

Vacuum evaporation

The liquid enters the evaporator, where evaporation takes place under
vacuum conditions.

Two streams are generated: water vapor and concentrated liquid (which continues increasing in solids content)

3

Mechanical vapor recompression

The generated vapor is directed to a compressor, where pressure increases and temperature rises.

The recompressed vapor is then reused as the heating source for the evaporator itself.

4

Condensation, recovery and crystallization

The vapor releases its heat and condenses, producing reusable distilled water.

The concentrate reaches high solids content and, in systems such as DESALT MVR FC, controlled salt crystallization takes place.

Final outputs: recovered water and concentrate or solid crystals.

3D VIDEO ANIMATION

The following is a 3D video animation that shows step-by-step how our mechanival vapor recompression evaporators work, from the feed of the solution to be treated into the evaporator until the distillate and concentrate are extracted from the system.