COUNTER-FLOW PLATE-TYPE HEAT EXCHANGER Russian patent published in 2009 - IPC F28D9/00 

FIELD: heating.

SUBSTANCE: present invention is meant for use in heat engineering, and particularly in any field for heating or cooling gaseous media with high thermodynamic parameters and high input of heat carrier. The counter-flow plate-type heat exchanger has heat exchange elements, made in pairs of combined plates. Each plate has at least, two heat-transfer and four collector parts for transmitting and distributing heat carrier. The collector part of the high pressure heat carrier is between the heat transfer parts. The collector part of the low pressure heat carrier lies on the whole width of the plates, on the side of its input and output. The collector parts of the plates of the high pressure heat carrier are partitioned off by a pimple, into a distributing collector and receiver. On the length of the section of counter-flow of heat carrier, collector parts are separated from heat transfer parts by longitudinal pimples, bordered on the length by the section of input of heat carrier from the distributing collector into heat transfer parts and the output section of the heat carrier into the receiver. On heat transfer parts of the plates, there are corrugations at an inclination angle to the sides of the sides of the plates not equal to 90 degrees. Along the perimeter of the plates there are raised edges which prevent leakage of low pressure heat carrier when welding (soldering). On the outer side of each heat transfer part, there are more raised edges, preventing leakage of high pressure heat carrier when welding (soldering).

EFFECT: increased efficiency of heat exchange and reduced the number of collectors and pipes.

3 cl, 5 dwg