Multi-lance tube cleaning system having flexible portions
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United States of America Patent
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Jul 14, 1992
Issued Date -
N/A
app pub date -
Oct 19, 1990
filing date -
Mar 8, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved multi-lance cleaning apparatus for cleaning the interior of heat exchanger tubes, the apparatus having a lance housing, a slidable manifold within the lance housing, a single conduit connecting the manifold with a high pressure, high volume fluid source, a spool for storing the conduit permitting it to be advanced and retracted, means for moving the manifold within the housing, a plurality of lances removably attached to the manifold and adapted to fit within a heat exchanger tube and tube guides to guide and support the lances. The lances include a plurality of flexible lances attached to rigid lances and adapted to fit within a heat exchanger tube which are capable of traversing a curved path within the tube bundle.
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