| 摘要 |
A large scale cleaning plug (L) adaptable to be placed within an interior passageway ( 10 ) of a tubular system ( 14 ) includes a frame structure ( 208 ) with a first and second end ( 202 and 204 ) supporting an outer skin member ( 200 ) for directing a fluid (F) through an interior passageway formed in the skeletal frame structure ( 208 ). A middle section ( 300 ) of the frame ( 208 ) has a generally frustoconical shaped bottom ( 302 ). A rigging ( 236 ) connected to the frame ( 208 ) controllably secures the frame structure ( 208 ) in desired positions. The frame's second end ( 204 ) supports at least one nozzle assembly ( 220 ) having at least one nozzle body ( 222 ) extending from a plate ( 226 ) preventing appreciable fluid flow therethrough and permitting a desired fluid flow through an exit opening ( 223 ) of the nozzle bodies ( 222 ).
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