PLATE TYPE HEAT EXCHANGER Russian patent published in 2006 - IPC F28F3/08 

FIELD: heat engineering, namely plate type heat exchangers.

SUBSTANCE: heat exchanger includes pack of plates. Each plate has at least one row of flanged round openings whose flanges are inserted in respective opening of adjacent plate for forming duct for passing one of media through heat exchanger. Flanges of round openings are cone ones and they have outlet cylindrical portion and constant-thickness walls. Height of cylindrical portion consists 0.25 - 0.3 of flange height; cone surface of flange is joined with plate by means of curvilinear surface whose bending radius in longitudinal section consists 7 - 7.5 of plate thickness values. On surface of plate spherical convex zones are formed with height consisting 3 - 4 of thickness values of plate; spacing between axes of said zones is in range 20 - 30 thickness values of plate.

EFFECT: improved process for making heat exchanger due to selection of optimal configurations of flanges and sizes of plates including dimensions of flanged openings of plates.

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