Abstract: This invention relates to arrangement in heat exchangers, comprising a large number of heat exchange plates which, in compressed position, form throughflow passages for the heat exchange media, a first preferably stationary end wall situated on one side of the heat exchange plates and a second end wall situated on the opposite side of said plates and adapted to be displaced by clamping means towards said first end wall in order to sealingly compress the heat exchange plates, said preferably stationary end wall supporting a bar projecting therefrom and extending through recesses arranged in the heat exchange plates in order to locate said plates mutually and relative to the end walls against displacement in the plane of the plates when the clamping means are disconnected and/or the second end wall is removed, said bar having a length exceeding the distance between the end walls in the position where they compress the plates.

Abstract: The invention relates to a heat exchanger intended for cooling of a fluid when a compressed refrigerant is evaporated. The heat exchanger comprises one or more plate-shaped pressure cells (1, 1', 1") provided with inlet (6) and outlet (9) for refrigerant. The pressure cell consists of thin plates which have been joined together along their outer edges and at points over the heat exchange surface. The pressure cell is surrounded by a container (2) for the fluid which is to be cooled when the refrigerant changes its state.