PLATE-TYPE HEAT EXCHANGER Russian patent published in 2016 - IPC F28D9/00 

FIELD: heating.

SUBSTANCE: claimed heat exchange (2) comprises the first and second frame plates (4 and (6) and the stack (24) of heat exchange plates (26). Every heat exchange plate has the central section (56) and peripheral section (58) arranged around the central section. Heat exchange plates are arranged in pairs between the first second frame plates. The first path (F1) for the first fluid flow is composed between the heat exchange plates and second flow path (F2) for second fluid flow is composed between the pairs of heat exchange plates. Said first or second fluid flow path makes the free flow path wherein the central section of heat exchange plates are separated fully from each other. Claimed heat exchanger comprises extra reinforcing plate (28a) thicker than heat exchange plates and has the central section (100) surrounded by peripheral section (102). Said reinforcing plate is located between the first frame plate and the stack of heat engine plates. The first set of permanent reinforcing joints (106) each interconnecting the reinforcing plate and the extreme heat exchange plate (26a).

EFFECT: simplified assembly, higher precision of the pates attachment.

17 cl, 16 dwg