PLATE-TYPE HEAT EXCHANGER Russian patent published in 1994 - IPC

FIELD: heat exchange apparatus. SUBSTANCE: heat exchanger has stack of corrugated heat exchange plates which are separated by spacer and sealing members. Sealing members form in the stack the collecting and dispensing headers and heat exchange and connecting passages between plates. Corrugations on sections of plates forming the heat exchange passages are located in series in one row along axis of heat exchange passage. In case heat exchange surface in located in central zone of plate, it is provided with one corrugation. When heat exchange surface is located in peripheral zone in radial direction after the headers, number of corrugations is selected from number series 1, 2, 4. Corrugations are convex curvilinear is shape in radial direction in section by planes transverse relative to the stack axis. EFFECT: enhanced efficiency. 3 cl, 6 dwg