Interlocking spacer members for coiled tube assembly
AssigneeLinde Aktiengesellschaft
InventorDieter Haller
Life of this patent
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Abstract
A heat exchanger of the type in which multiple layers of helically coiled tubes surround a core tube, has spacers between the layers which are constituted by elongated bodies provided with seats receiving successive tubes of each layer and having dovetail formations enabling the bodies of each layer to be connected to those of the adjoining layers. The bodies thus act as spacers for the successive turns in each layer and for the successive layers and retain the turns specifically at the ends of the coils to facilitate positioning thereof with respect to the core tube and/or the housing.
Claims4
A heat exchanger comprising a coil assembly having a plurality of coaxial layers of helically coiled tubes, a respective spacer body for each of said layers, said bodies being all identical and constituting the sole means for holding said coils in spaced apart relation said bodies each being elongated and formed with a multiplicity of recesses receiving respective turns of the respective layer and mating formations on opposite sides of each body enabling the weld-free interconnection of said bodies to space said layers apart by relative longitudinal displacement of two adjacent bodies, each of said bodies being formed along an underside with a continuous T-section rail constituting one of said formations, each body being provided between each two of the respective recesses with a wall lying in a plane perpendicular to the rail and having a free end remote therefrom, all of said free ends being formed with T-shaped windows which are aligned with one another parallel to the respective rail for accommodating the rail of an adjacent body, said bodies being connected to one another solely by the fitting of a rail of one body into the windows of another.
Dependencies are inferred from the claim text.