HEAT EXCHANGER TUBE-SHEET Russian patent published in 2017 - IPC F28F9/13 

FIELD: heating.

SUBSTANCE: proposed a heat exchanger tube-sheet 6, having openings 7 for placing the ends of heat exchanging tubes, at that each opening 7 is provided with at least one concentric bore 8 for laying the ring sealing elements 9. The bores 8 in the sheet body are distributed in different planes parallel to its base, and the contours of the bores projection at the auxiliary plane parallel to the sheet base have the gap between them or a common point, i.e. contacting.

EFFECT: increase of the sheet strength without increasing of the center distance between the adjacent heat exchange tubes, increase of the tube bundle layouts versions on the sheet.

4 cl, 6 dwg, 2 tbl