Device for fixing a perforated sheet against the perforated tube plate of a heat exchanger
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United States of America Patent
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Oct 6, 1987
Grant Date -
N/A
app pub date -
Mar 12, 1987
filing date -
Mar 14, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for fixing a perforated sheet (8) against the perforated tube plate (1) of a heat exchanger having a bundle of tubes (4, 5), the perforated sheet (8) controlling the rate of fluid flow along the tubes, and the device comprising hollow pins (10) inserted in the ends of some of the tubes (4) and expanded therein, the hollow pins terminating outside the tubes with threaded ends (12) onto which respective nuts (15) are screwed for clamping the perforated sheet against the perforated tube plate, the nuts having heads including respective axial fluid-flow controlling bores (17).
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