A PLATE HEAT EXCHANGER AND A PLATE MODULE

摘要

A plate heat exchanger comprises a plate package (P) formed by a number of heat exchanger plates forming a first plate interspace for a cooling medium between each pair of adjacent heat exchanger plates and a second plate interspace for a fluid between remaining pairs. The first and second plate interspaces are separated from each other and provided in an alternating order. Each heat exchanger plate (1) has at least a first porthole (12). The first portholes (12) enclose an inlet channel (13) for the cooling medium to the first plate interspaces. The inlet channel permits separation of the cooling medium into a substantially gaseous phase and a substantially liquid phase. The plate heat exchanger comprises a primary passage for the gaseous phase to the first plate interspaces and a secondary passage for the liquid phase to the first plate interspaces. The primary passage and the secondary passage meet in an area (19) for re-mixing of the liquid phase into the gaseous phase for transport of this mixture further into the first plate interspaces.