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Heatexchangers  
                              
are used for heating or cooling of process media.
There are various types available. We would like to introduce those out of our range of products: shell & tube, brazed plate, plate  & frame, plate heatexchanger panels as well as air blast coolers.


The process fluid on
Shell & tube heatexchanger is usually installed to the shellside, whilst the cooling fluid is being connected to the tubeside; normally water (depending on the application) fresh-, sea- or brackish water.
The cooling fluid dissipates the heat of the process fluid by  circulating counterflow through the tubeside via the inner surface of the tubes. These types of heatexchangers are available with an
integrated expansion tank as well.

Plate
Brazed
plate heatexchangers consist of numerous profiled singleplates; special arrangement of these plates causes turbulent velocities, rendering them less prone to fouling. There are two different kinds: brazed and plate & frame type  heatexchangers. The way they are functioning is almost identical. Brazing forms an integral unit, whilst at the plate & frame type uses gaskets instead.

Airblast
 Airblast coolers are being used when there is no water for cooling available By using air as cooling medium it should be well considered that the temperature, in dependence on the climate conditions, can be variable.
The fans are propelled by electric motors. “Sucking type” fans are fitted, thus obtaining better dissipation capacity. The amount of generated air is always proportional to the fan blades diameter and not to the speed of the same. 


platecIn contrast to the above mentioned design, plate heatexchanger panels (PHP) can be fitted/ hanged directly into the process fluid, clamped on from the outside, or even become a part of the vessel.
They are manufactured from two two sheets of metal by laser or resistance welding, forming a series of passes through which the heating or cooling media flows. The profile being created depends on the customer´s demand.

Apparatetechnik Harald Schönstein GmbH   D-22594 Hamburg   Postbox 52 0403
    Tel. +49(0)40/ 89 3003   Fax +49 (0)40/ 89 3004    Mobile +49 (0)173 2086 308
 
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