FIELD: regenerative heat exchangers of gas-turbine plants. SUBSTANCE: heat-transfer agent is fed to heat-exchange element 1 where it is twisted through swirler 2. Then flow of medium is divided in order of change of its density. Maximum transfer of heat is effected through simultaneous regulation of at least degree of opening of adjusting shut-off devices 8, 9, 10 and 11 and distance between outlet section of swirler 2 and inlet section of swirler 6 through axial displacement of swirler 6. EFFECT: enhanced efficiency. 4 cl, 15 dwg
