| 摘要 |
<p>A method of cleaning a pipeline (2) for transporting a fluid, in particular a gas, more particularly a gas which forms an explosive mixture when mixed with air, comprises removing debris from the pipeline (2) by means of a collecting device and a removal unit (56). The pipeline (2) is cleaned in a commissioned state, without interrupting the flow of fluid through the pipeline, by removing a mixture of fluid and debris from the pipeline (2) by means of suction, separating the debris from the fluid and re-injecting the cleaned fluid into the pipeline (2). A cleaning unit (10) for carrying out the method according to the invention comprises, connected in series, first means for connecting the cleaning unit to the pipeline, an inlet (12) for purging gas, first valve means (14, 16), one or more separation stages (18, 28, 38) for mechanical separation of debris from the gas/debris mixture, a blower (40) for creating suction, second valve means (48) connected in parallel with the blower (40), third valve means (50, 54), and second means for connecting the cleaning unit to the pipeline.</p> |
