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Evaporation · Concentration

Evaporation · Concentration

SCT(Self Cleaning Technology)
Video of Kovec's Self-Cleaning MVR System, Patented Technology

Falling Film type Evaporation with Self Cleaning Technology (Kovec's patented product)

Type Falling Film Evaporation (FFE) MVR System Self Cleaning Technology (SCT) MVR System
Facility configuration diagram
Features
  • A single-row, vertically arranged multi-tube heat exchanger is configured.
  • Wastewater is distributed from the top by a circulation pump and supplied to the heat transfer tubes.
  • The wastewater naturally flows as a thin film and evaporates.
  • The heat transfer tubes are divided into multiple zones (6-8).
  • One zone is switched to ascending heat transfer (cleaning circulation) and the remaining zones operate as descending heat transfer (thin-film flow).
  • Scaling is controlled through alternating operation of ascending and descending heat transfer tubes(switching according to time sequence).
Pros & Cons
  • The thin liquid surface provides low thermal resistance.
  • Gravity flow facilitates scale adhesion.
  • It is highly unfavorable for concentrating high-concentration, high-viscosity solutions.
  • Continuous cleaning during operation allows for scale control.
  • Selectable thin-film flow and forced circulation modes are available.
  • Higher concentrations are possible compared to existing facilities.
  • Slightly more expensive than typical thin-film flow (FF) systems.
FFE (Fallling Film Evaporation)
FCE (Forced Circulation Evaporation)

Application of Self-Cleaning Evaporation and Concetration Device(1)

SCT – MVR type evaporation concentrator is an economical evaporation concentrator system that greatly increases the waste heat recovery rate by applying an MVR (Mechanical Vapor Recompression) vapor compressor to a self-cleaning concentrator.

Application of Self-Cleaning Evaporation and Concetration Device(2)

SCT – TVR type evaporation concentrator is an economical evaporation concentrator system that increases the waste heat recovery rate by applying a TVR (Thermo Vapor Recompression) vapor compressor to a self-cleaning concentrator.