Hasil (
Bahasa Indonesia) 1:
[Salinan]Disalin!
Apparatus and method for heating single insulated flowlinesAbstractApparatus and method are provided for electrically heating subsea pipelines. An electrically insulating layer is placed over the pipe in the segment of the pipeline to be heated and electrical current is caused to flow axially through the steel wall of the pipe. In one embodiment (end fed), an insulating joint at the host end of the pipeline is used to apply voltage to the end of the segment. At the remote end an electrical connector is used to conduct the electrical current to a return cable or to a seawater electrode. A buffer zone of the pipeline beyond the remote end is provided. Separate electrical heating may also be applied in the buffer zone. Electrical chokes may be used in different arrangements to decrease leakage current in the pipeline outside the heated segment. In another embodiment (center fed), voltage is applied at or near the midpoint of the segment to be heated through an electrical connector and no insulating joint is used. Buffer zones, heating of buffer zones and electrical chokes may also be employed in this embodiment.
Sedang diterjemahkan, harap tunggu..
