Tube spacer grid for a heat-exchanger tube bundle
AssigneeSiemens Aktiengesellschaft
InventorHelmut Scheidl
Life of this patent
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Abstract
A tube spacer grid for a heat-exchanger tube bundle is formed by an annular grid frame having a groove formed in its inner surface in which the interspaced grid bars have their ends positioned and held in interspaced relationship by short sections of tubes passed through holes axially formed in the grid frame so that the tubes are positioned between the ends of the grid bars in the grooves. The tube sections may be cut from the same tubes used to form the tube bundle.
Claims5
A spacer grid for holding the interspaced individual tubes of a pressurized-water reactor's steam generator's heat-exchanger tube bundle, comprising an annular grid frame having an inner surface in which an annular groove is formed, a series of mutually interspaced grid bars each having opposite end portions which are interspaced and inserted in said groove, said frame having ends and having axially extending interspaced holes formed through at least one of said ends and through said groove, said holes being formed between said end portions, and cylindrical sections inserted through said holes and holding said end portions interspaced in said groove.
Dependencies are inferred from the claim text.