COUNTERFLOW PLATE MATRIX-RING SMALL-SIZED CERAMIC RECUPERATOR Russian patent published in 2012 - IPC F23L15/04 F28D9/00 F28F3/00 F28F21/04 

FIELD: power engineering.

SUBSTANCE: proposed counterflow plate ceramic matrix-ring recuperator is designed in the form of a row of cylindrical heat-exchange matrices of identical width and different diameter. Matrices are installed one into another coaxially. The matrix is a cylindrical sleeve assembled in the form of a pile of flat circular sheets - plates with holes and transverse slots that create a system of longitudinal channels when the plates are folded, and whenever matrices are coaxially installed one into another - a system of short transverse channels with a certain circumferential pitch. Holes in circular sheets create axial channels in the space, in which flows of heated air and heating gases that do not mix anywhere move separately in opposite directions. Along the perimetre of walls of openings in each plate with a certain pitch there is at least one intensifier arranged to renew a border layer, for instance, in the form of transverse grooves, systems of holes, ledges, etc.

EFFECT: considerable improvement of characteristics of regular plate recuperators used in open cycle gas-turbine plants.

14 dwg