FLEXIBLE TRANSPORTATION OF VARIOUS MEDIA AND PIPE FOR ITS PRODUCTION Russian patent published in 2021 - IPC F16L11/14 F16L11/12 

FIELD: pipeline transport.

SUBSTANCE: group of inventions relates to pipeline transport. The proposed pipeline is designed for transportation of various media, for example, hydrocarbons and corrosive liquids, overland with laying on the land surface, in a trench, in an embankment, on a flyover or in a sleeve. The flexible line consists of a flexible polymer reinforced pipe equipped with fittings on both sides. Flexible polymeric reinforced pipe contains a liner, a reinforcing layer, a separating layer, a reinforcing shell. The separating layer and the reinforcing shell are made of polymer. The separating layer polymer has a melting point higher than the melting point of the over-reinforcement shell. The separating layer is made gap-free. The material of the separating layer is polyethylene terephthalate. The reinforcing layer can contain metal tapes, metal wires, polymer tapes and polymer filaments. In this case, polymer tapes can be made reinforced. The liner may contain a gas barrier layer. The supra-reinforcing shell can be made of a polymer with high wear resistance and can be protected from ultraviolet rays. In addition, a multilayer auxiliary sheath containing a separating layer and a protective sheath, as well as, if necessary, a layer of conductors and a heat-insulating layer can be arranged over the over-reinforcement sheath. The layer of conductors can contain electrical signal, power, heating, optical conductors and a communication channel, as well as a lengthy sensor for monitoring the presence of pipe damage. The heating conductors can be sheathed to help distribute heat evenly from the conductor itself to the layer with which it is in contact. Additionally, the supra-reinforcing shell or protective shell may contain long-length light elements, on top of which there may be a light-conducting shell.

EFFECT: increased durability of pipelines fit for varied conditions.

36 cl, 31 dwg