FIELD: pipe line transport. SUBSTANCE: means for heating are made up as electric conductors connected with a power source. The conductors are arranged along the pipe line. Wires are positioned at least in one layer wherein the conductors are parallel to each other and is wound about the axis of the pipe line into a spiral. One or all layers of the conductors are interposed between two flexible piping shells of the pipe lines. The conductors are interconnected and each of them bears on the surface which underlies the piping shell. EFFECT: improved design. 20 cl, 10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FLEXIBLE PIPE LINE WITH IMPROVED HEAT INSULATION | 1991 |
|
RU2079039C1 |
| FLEXIBLE PIPE LINE | 1991 |
|
RU2068523C1 |
| FLEXIBLE HOLLOW PIPELINE INCLUDING HOLLOW SEALED ENVELOPE OF CROSS LINKED POLYETHYLENE AND DEVICE METHOD OF MAKING THE SAME | 1991 |
|
RU2073612C1 |
| FLEXIBLE TUBULAR FRAMEWORK | 1991 |
|
RU2072060C1 |
| RIGIDITY MEMBER FOR STRENGTHENED STRUCTURE | 1991 |
|
RU2068968C1 |
| FLEXIBLE PIPE-LINE | 0 |
|
SU1831631A3 |
| POLYMERIC REINFORCED PIPE WITH ELECTRIC HEAT TRACING | 2017 |
|
RU2665776C1 |
| FLEXIBLE PIPELINE | 0 |
|
SU1738101A3 |
| SUPERCONDUCTING MULTI-PHASE CABLE SYSTEM, METHOD OF ITS MANUFACTURE AND ITS APPLICATION | 2006 |
|
RU2387036C2 |
| METHOD FOR CONNECTING HIGH- AND LOW-TEMPERATURE TAPS OF CABLE LINE | 2005 |
|
RU2301469C1 |
