Balanced rotating spray tank and pipe cleaning and cleanliness v

Details Balanced rotating spray tank and pipe cleaning and cleanliness v Balanced rotating spray tank and pipe cleaning and cleanliness v

1995-03-29

1998-01-13

Stinson, Frankie L.

Cleaning and liquid contact with solids

Apparatus

With alarm, signal, indicating, testing, inspecting,...

1341022, 134167R, 134181, 261DIG78, B08B 302

Patent

active

057068429

ABSTRACT:
A system for cleaning and verifying the cleanliness of the interior surfaces of hollow items, such as small bottles, tanks, pipes and tubes, employs a rotating spray head for supplying a gas-liquid cleaning mixture to the item's surface at a supersonic velocity. The spray head incorporates a plurality of nozzles having diverging cross sections so that the incoming gas-liquid mixture is first converged within the spray head and then diverged through the nozzles, thereby accelerating the mixture to a supersonic velocity. In the preferred embodiment, three nozzles are employed; one forwardly facing nozzle at the end of the spray head and two oppositely facing angled nozzles exiting on opposite sides of the spray head which balance each other, and therefore impart no net side load on the spray head. A drive mechanism is provided to rotate the spray head and at the same time move the head back and forth within the item to be cleaned. The drive mechanism acts on a long metal tube to which the spray head is fixed, and thus no moving parts are exposed to the interior surfaces of the items to be cleaned, thereby reducing the risk of contamination.

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