Multi-Nozzle Mechanical Tube Cleaning System
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United States of America Patent
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Feb 14, 2019
app pub date -
Aug 11, 2017
filing date -
Aug 11, 2017
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Abstract
The efficiency of projectile tube cleaning in multitube heat exchangers is greatly enhanced by the use of two or more nozzles for pressurized water or other liquid held by a bracket in parallel orientation a distance apart that equals the distance apart of the tubes. A pneumatic control system enables the simultaneous activation of two or more pressurized water valves so that two or more tubes can be scraped clean at once. Large heat exchangers and condensers having ordered arrays of thousands of parallel tubes can be cleaned by selecting a number of tubes for deposition of cleaning projectiles, repeatedly projecting two or more of the projectiles simultaneously, and immediately moving on to another set of tubes; then repeating the process with another selected number of tubes.
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