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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