Heat exchanger cleaning process
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United States of America Patent
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Issued Date -
Sep 29, 2005
app pub date -
May 26, 2005
filing date -
Nov 26, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is a novel process for cleaning and restoring the operating efficiency of organic liquid chemical exchangers in a safe and effective manner and in a very short period of time, without a need to disassemble the equipment and without the need to rinse contaminate from the equipment after cleaning. Used is a formulation of monocyclic saturated terpene mixed with a non-ionic surfactant package specifically suited to oil rinsing. The terpene-based chemical is injected into organically contaminated exchangers using a novel process involving high-pressure steam to form a very effective cleaning vapor. Also disclosed is a manifold which can be used to administer the formulation including steam into one side of the exchanger (e.g., the shell side) in one direction (e.g., from top to bottom) and easily then reverse the direction of flow (e.g., from bottom to top) to more thoroughly clean the exchanger.
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