| 摘要 |
A device for cleaning and doping (lubrication) equipment for threads ( 3 b , 4 b) of the type used to join pipes ( 4 ) to a pipe string ( 3 ), especially in connection with petroleum production, where cleaning fluid and dope (lubricant) are sprayed at the threads ( 3 b , 4 b) at relatively high pressure from at least one nozzle ( 5, 6 ) mounted in the rotatable make-up section ( 1 ) of a power tong, and where at least one injection pump ( 7, 8 ) arranged to supply cleaning fluid or dope to the at least one nozzle ( 5, 6 ) is located in the rotatable make-up section ( 1 ).
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