Heat pump technology

The evaporation of the solvent and the subsequent condensation take place in this process by using the hot or cold side of a refrigeration cycle (compressor, refrigerant). Apart from a power connection, the system requires no further energy, such as heating media or cooling water. The energy consumption (heating and cooling energy) is reduced to about 10% compared to a conventional single-stage evaporation.

We offer three different heat pump evaporators as standard systems:

  • CONfix® forced circulation evaporator
  • EVA natural circulation evaporator
  • DRYfix® dryer

Custom-made products are of course also possible on request.

This type of system offers a number of positive features:

  • 90 % energy saving
  • no energy sources such as steam, hot water, etc. required (only one power supply is needed)
  •  no cooling water needed
  • self-sufficient systems
  • modular design
  • prefabricated in the rack
  • pre-tested systems
  • low boiling temperature in a vacuum (<50°C)

Operation in a vacuum offers further advantages, such as reduced corrosion. It allows the use of heat-sensitive products and, when using of a plastic heat exchanger, the concentration of hydrochloric or hydrofluoric acid is also possible.

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CONfix® - Forced circulation evaporator with heat pump

If a medium that tends to form deposits has to be concentrated, then this forced circulation evaporator is the right system. The medium is passed into the expander through a circulation pump via an external heat exchanger. The radiator only performs the warming; evaporation first takes place in the expander, whereby a deposit formation is strongly reduced.

Schulz+Partner - CONfix® schema Schulz+Partner - CONfix® Schema

EVA - Natural circulation evaporator with heat pump

This type of system is particularly suitable for smaller quantities and simple tasks.
The medium is sucked into the concentration stage via negative pressure and heated there by means of a heat exchanger in which the refrigerant condenses. The medium is thus concentrated to a consistency that is still flowable. The resulting water vapour flows into the condensation stage and is condensed there upon evaporation of the refrigerant. The distillate is discharged through the vacuum system.

Schulz+Partner - EVA schema Schulz+Partner - EVA Schema

DRYfix® - Dryer with heat pump

This series is suitable for media that require a stirrer evaporator or that must have low residual moisture.

The medium is sucked into the dryer, where it is heated with the condensation energy of the refrigerant in the jacketed tank and its parts vaporise. A stirrer prevents adhesion to the heat exchanger. The medium is thus dried to the desired concentration. The residue can be removed from the front opening.

Schulz+Partner - DRYfix® schema Schulz+Partner - DRYfix® Schema