Heat Pump Evaporation

Heat pump evaporators
operate on the basis of a compressor-driven refrigerant circuit. As the name indicates,
the system "refrigerates" (or cools) on the low-pressure side while generating
an equal amount of heat on the high-pressure side. Where refrigeration is the
sole objective, such heat is normally dissipated into the ambient atmosphere. Our
heat-pump evaporators, in contrast, utilize both the heat output and the
refrigerating capacity in a complementary manner: the heat generated is used
for evaporation, while the “cold” output is simultaneously employed for vapour condensation.
This explains the exceptional 90% efficiency of these evaporators. Apart from
the power for the compressor, the plant

requires no further
energy input at all.

We offer three different type series as standard plants:

Forced Circulation Evaporator CONfix®

Natural Circulation Evaporator EVA

Dryer DRYfix®

Special-purpose designs are always available on request.

This type of Evaporators offer a number of positive features:

• 90 % energy conservation
  
• No cooling or hot water, no vapor required,
  just electrical power
  
• Autonomous systems
  
• Modular design
  
• Pre-assembled in base frames
  
• Pretested
• Low boiling temperatures under vacuum (<50°C)

Operating under vacuum provides several further advantages, like a reduced corrosion. It is also suitable for heat-sensitive feed products and using a plastic heat exchanger allows to process even hydrochloric and hydroflouric acids.

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If you like to concentrate liquids that easily
lead to encrustations on the heating surfaces, this is the right
solution.

A circulating pump is
used to deliver the product through an external heat exchanger into the flash vessel.
The product is only moderately heated without boiling when passing through the
heat-exchanger, to be subsequently evaporated in the flash vessel. This
minimizes deposits and encrustations.