The welded plate heat exchanger is divided into: semi-welded plate
heat exchanger, fully welded plate heat exchanger, plate-shell heat
exchanger and brazed plate heat exchanger.Semi-welded Plate Heat
Exchangers are commonly used as evaporators, condensers,
desuperheaters, or oil coolers and are designed for heating and
cooling aggressive material. It also works with a wide range of
refrigerants and is especially well-suited to ammonia-based
applications.Semi-welded heat exchangers are employed in both
organic and inorganic chemical processing where the chemicals used
limit the kind of gaskets that may be used, or when the required
design pressure makes fully-gasketed PHEs or traditional rubber
seal heat exchangers unsuitable. We have build each heat exchanger
to your exact specifications, ensuring a long-lasting solution that
can endure harsh circumstances while reducing the risk of chemicals
or refrigerants.King DuPont semi-welded plate ammonia evaporator is
to weld two plates together to form a sealed channel. In the
refrigeration application, the refrigerant flows in the welding
channel and only contacts with the two refrigerant and compressor
oil resistant sealing rings at the inlet and outlet of the plate
set. The medium on the other side is still sealed with rubber ring.
If necessary, this structure can be removed to make each plate
convenient for maintenance, and at the same time, the stability of
the welded plate group is guaranteed. It is especially applicable
to the treatment of demanding fluids or gases, such as ammonia,
corrosive chemicals, etc., which are not allowed to leak each
other. When used in the ammonia refrigeration process, the leakage
of ammonia is significantly reduced. As the semi-welded plate heat
exchanger can be applied in a modular way, it is widely used in
cooling and quick-freezing.Application: This product is a
semi-welded heat exchanger (ammonia evaporator) specially designed
for the refrigeration industry. The ammonia goes through the
welding channel, and the refrigerant carrier (calcium chloride
aqueous solution) goes through the gasket channel. This structure
not only ensures the reliable sealing of the ammonia side channel,
but also has the advantages of being removable. In addition, it is
also suitable for heat exchange occasions with vapor-liquid phase
change and liquid-liquid phase change and high safety requirements.
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