Improvements in or relating to heat exchange apparatus

Abstract

Abstract 694,523. Plate heat-exchangers. ZEUTHEN, R., and LARSEN, M. Jan. 30, 1951, No. 2288/51. Class 64 (iii) The plates 1, 6 of a heat exchanger have reinforcing fillets 3, 4 and packings 5, Fig. 4, along their edges and are arranged in pairs in each of which the distance between the plates is less than that between adjacent pairs of plates. Moreover, in order to resist deformation, each plate has at least one curved portion (two being shown in each plate in Fig. 2) the curvature of which is that of a surface of a cylinder of circular cross-section, the corresponding surfaces of each pair of plates having a common axis but different radii so that the thickness of the path between the plates of each pair for fluid, such as milk to be heated, is uniform. The fluid paths 9 between the pairs of plates, i.e. the paths for the heating medium, are thicker than those for the milk &c., by reason of an offset 2, Fig. 4, on the edge of one plate 1 of each pair. The fillets 3, 4 and packing 5 are of uniform thickness throughout the stack of plates. Supports 15, 16 are placed between the plates where the curved surfaces of a plate meet and are in turn supported by protrusions from end members 17, 18 between which the plates 1, 6 are fixed. The curved surfaces may be arranged transversely or longitudinally to the direction of fluid flow.

Inventors

No inventors recorded.

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