HEAT EXCHANGER Russian patent published in 1997 - IPC

FIELD: heating and cooling liquid and gaseous media. SUBSTANCE: heat exchanger includes working elements 1 made from two plates provided with corrugated heat exchanger surfaces and connected over outer edges 4, tube sheets with holes for elements 1 and end shields adjoining the tube sheets forming headers for supply and discharge of first heat-transfer agent. These headers are brought in communication with chamber 2 of working elements. Header edges are provided over periphery of plates; these edges are located at distance equal to 0.3-1 of corrugation height from plane of outer edges 4. EFFECT: enhanced efficiency. 12 cl, 11 dwg