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公开(公告)号：US09851027B2
公开(公告)日：2017-12-26
申请号：US14903838
申请日：2014-07-08
Applicant: PRYSMIAN S.P.A.
Inventor： Pietro Anelli , Rodolfo Sica , Gabriele Perego , Carlos Alberto Ferreira Godinho
IPC: F16L11/08
CPC classification number: F16L11/08 , F16L11/083
Abstract: Submarine flexible pipe includes a metal flexible carcass, an inner polymeric liner arranged in a radially outer position with respect to the metal flexible carcass, a protective polymeric outer sheath and a mechanical armor structure arranged in a radially inner position with respect to the protective polymeric outer sheath, the mechanical armor structure being potentially exposed to water contact. The mechanical armor structure includes a pressure resistant armor and a tensile armor arranged in a radially outer position with respect to the inner polymeric liner. The mechanical armor structure includes a plurality of carbon steel elongated elements, each of the carbon steel elongated elements being coated by an aluminum cladding.
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公开(公告)号：US10361010B2
公开(公告)日：2019-07-23
申请号：US15567829
申请日：2015-04-22
Applicant: PRYSMIAN S.P.A.
Inventor： Rodolfo Sica , Pietro Anelli
Abstract: An energy cable comprising at least one cable core comprising an electric conductor, a crosslinked electrically insulating system comprising an inner semiconducting layer, an insulating layer and an outer semiconducting layer and zeolite particles placed between the electric conductor and the inner semiconducting layer of the insulating system. The zeolite particles are able to efficiently extract and irreversibly absorb the by-products deriving from the cross-linking reaction, so as to avoid space charge accumulation in the insulating material during cable lifespan. This allows to eliminate the high temperature, long lasting degassing process of the energy cable cores having a crosslinked insulating layer, or at least to reduce temperature and/or duration of the same, so as to increase productivity and reduce manufacturing costs.
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