Heat exchanger leak detection
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United States of America Patent
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Jul 24, 1990
Grant Date -
N/A
app pub date -
Apr 27, 1989
filing date -
Jun 16, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a convenient process to detect leaks in a partially disassembled floating head-type heat exchanger. The heat exchanger is partially disassembled by removing the floating head end shell cover. A lightweight, flexible membrane having low gas permeability is then attached to the exchanger so as to cover the floating head gap. Gas is then introduced into the shell side of the exchanger. Leaks may be detected by observing the end face of the floating head tube sheet for an indication of the gas using a soap solution and observing the formation of soap bubbles.
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