Device for cleaning inner surface of heat exchanger tubes

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12228356
APP PUB NO 20210310756A1
SERIAL NO

17220283

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A grit blasting arrangement for cleaning chemical reactor tubes includes means for ensuring the grit blast nozzle is coaxial with the longitudinal axis of the tube to be cleaned. The grit blasting device for cleaning tubes spaced apart by upper and lower tubesheets. The grit blasting device includes a grit blast nozzle mounted on a positioning frame and projecting outwardly with an outlet directed into a tube opening during a cleaning operation. The device includes a plurality of stop pins mounted on the positioning frame designed to abut a tubesheet and to define an imaginary plane coplanar with the tubesheet. The plurality of stop pins when abutting the tubesheet prevent the outlet of the nozzle from extending into the tube causing a venturi effect.

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Patent Owner(s)

  • TUBEMASTER INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brewer, Stephen W New Albany, US 9 19
Johns, Clifford L Louisville, US 45 201
McAndrews, Dennis Patrick Jeffersonville, US 6 1

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