IN-PROCESS CLEANING OF THE EXTERNAL SURFACES OF HEAT-TRANSFER TUBES USING A DRY MIXTURE OF SOLID POWDER AND GASES
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United States of America Patent
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Nov 26, 2020
app pub date -
May 20, 2020
filing date -
May 20, 2019
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Abstract
Disclosed is a system for in-process cleaning of external surfaces of heat-transfer tubes of a heat-transfer system that removes or delivers heat from or to a process flow, the system may include: a lance to spray a dry-cleaning mixture comprising gases and dry solids, but not liquids, on external surfaces of heat-transfer tubes of the heat-transfer system to remove scale or fouling from the external surfaces for increasing thermal efficiency of the heat-transfer systems during heat transfer operation.
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