GB2605722A - Skin-effect heating cable - Google Patents
Skin-effect heating cable Download PDFInfo
- Publication number
- GB2605722A GB2605722A GB2208920.5A GB202208920A GB2605722A GB 2605722 A GB2605722 A GB 2605722A GB 202208920 A GB202208920 A GB 202208920A GB 2605722 A GB2605722 A GB 2605722A
- Authority
- GB
- United Kingdom
- Prior art keywords
- skin
- outer conductor
- effect heating
- heating cable
- conductor arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract 18
- 230000002500 effect on skin Effects 0.000 title claims abstract 16
- 239000004020 conductor Substances 0.000 claims abstract 26
- 239000000463 material Substances 0.000 claims abstract 7
- 238000009413 insulation Methods 0.000 claims abstract 2
- 230000005291 magnetic effect Effects 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims abstract 2
- 230000005294 ferromagnetic effect Effects 0.000 claims 7
- 239000012530 fluid Substances 0.000 claims 3
- 239000002131 composite material Substances 0.000 claims 2
- 239000010426 asphalt Substances 0.000 claims 1
- 239000003302 ferromagnetic material Substances 0.000 claims 1
- 239000002105 nanoparticle Substances 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
- H05B6/103—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces multiple metal pieces successively being moved close to the inductor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
- H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Resistance Heating (AREA)
- Pipe Accessories (AREA)
- General Induction Heating (AREA)
Abstract
A skin-effect heating cable (1) comprising an inner conductor arrangement (5), an outer conductor arrangement (3) comprising a material configured to generate heat through hysteresis losses when exposed to an alternating magnetic field, and an inner insulation (7) arranged between the inner conductor arrangement (5) and the outer conductor arrangement (3). The mutual position of the inner conductor arrangement (5) and the outer conductor arrangement (3) is fixed along the axial direction. A pipe assembly with such a cable and a method of heating are also disclosed.
Claims (14)
1. A skin-effect heating cable (1) comprising - an inner conductor arrangement (5); - an outer conductor arrangement (3) comprising a material configured to generate heat through hysteresis losses when exposed to an alternating magnetic field; - an inner insulation (7) arranged between the inner conductor arrangement (5) and the outer conductor arrangement (3); characterized in that the mutual position of the inner conductor arrangement (5) and the outer conductor arrangement (3) is fixed along the axial direction.
2. A skin-effect heating cable (1) according to claim 1 , characterized in that the outer conductor arrangement (3) comprises a plurality of outer conductor strands (31).
3. A skin-effect heating cable (1) according to claim 2, characterized in that it further comprises outer conductor spaces (33) between the outer conductor strands (31), and that an outer conductor space material is arranged in the outer conductor spaces (33), wherein the outer conductor space material is a ferromagnetic material.
4. A skin-effect heating cable (1) according to claim 3, characterized in that the outer conductor space material is a ferromagnetic plastic or a ferromagnetic composite material.
5. A skin-effect heating cable (1 ) according to claim 3, characterized in that the outer conductor space material is a ferromagnetic fluid.
6. A skin-effect heating cable (1) according to claim 5, characterized in that the ferromagnetic fluid comprises bitumen.
7. A skin-effect heating cable (1) according to claim 4, claim 5 or claim 6, characterized in that the ferromagnetic fluid, the plastic material, or the composite material comprises - ferromagnetic nanoparticles; or - monodispersed ferromagnetic particles.
8. A skin-effect heating cable (1) according to one of the preceding claims, characterized in that an optical fiber (61) is arranged with the inner conductor arrangement (5) or with the outer conductor arrangement (3).
9. A skin-effect heating cable (1) according to any one of claims 2 to 8, characterized in that some of or all of the outer conductor strands (31) have a polygonal cross section .
10. A skin-effect heating cable according to claim 1 , characterized in that the outer conductor arrangement (3) comprises a seam-welded tube.
11. A skin-effect heating cable according to claim 10, characterized in that the seam-welded tube (3) is enclosed in a corrosion-protective sheath (4).
12. A pipe assembly (10) comprising a pipeline (11 ) and an assembly jacket (41), wherein one or more skin-effect heating cables (1) according to one of the preceding claims are arranged between the pipeline and the assembly jacket .
13. A pipe assembly (10) according to claim 12, wherein the one or more skin- effect heating cables (1) is/are wound about the pipeline (11) with a helix configuration or with an alternating helix configuration.
14. A method of heating, comprising conducting electric current through the inner conductor arrangement (5) of the skin-effect heating cable (1 ) according to one of the preceding claims 1 to 11.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20191471 | 2019-12-11 | ||
| PCT/EP2020/085703 WO2021116374A1 (en) | 2019-12-11 | 2020-12-11 | Skin-effect heating cable |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202208920D0 GB202208920D0 (en) | 2022-08-10 |
| GB2605722A true GB2605722A (en) | 2022-10-12 |
| GB2605722B GB2605722B (en) | 2024-08-14 |
Family
ID=76329367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2208920.5A Active GB2605722B (en) | 2019-12-11 | 2020-12-11 | Skin-effect heating cable |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2605722B (en) |
| WO (1) | WO2021116374A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006115943A1 (en) * | 2005-04-22 | 2006-11-02 | Shell Internationale Research Maatschappij B.V. | Grouped exposed metal heaters |
| WO2008131168A1 (en) * | 2007-04-20 | 2008-10-30 | Shell Oil Company | Electrically isolating insulated conductor heater |
| CN1717529B (en) * | 2002-10-24 | 2010-05-26 | 国际壳牌研究有限公司 | Method and system for heating underground or wellbores |
| US20110247817A1 (en) * | 2010-04-09 | 2011-10-13 | Ronald Marshall Bass | Helical winding of insulated conductor heaters for installation |
| EP3068191A1 (en) * | 2015-03-12 | 2016-09-14 | Mikhail Leonidovich Strupinskiy | Skin-effect based heating cable, heating unit and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120018421A1 (en) | 2009-04-02 | 2012-01-26 | Tyco Thermal Controls Llc | Mineral insulated skin effect heating cable |
| US11006484B2 (en) | 2016-05-10 | 2021-05-11 | Nvent Services Gmbh | Shielded fluoropolymer wire for high temperature skin effect trace heating |
-
2020
- 2020-12-11 WO PCT/EP2020/085703 patent/WO2021116374A1/en active Application Filing
- 2020-12-11 GB GB2208920.5A patent/GB2605722B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1717529B (en) * | 2002-10-24 | 2010-05-26 | 国际壳牌研究有限公司 | Method and system for heating underground or wellbores |
| WO2006115943A1 (en) * | 2005-04-22 | 2006-11-02 | Shell Internationale Research Maatschappij B.V. | Grouped exposed metal heaters |
| WO2008131168A1 (en) * | 2007-04-20 | 2008-10-30 | Shell Oil Company | Electrically isolating insulated conductor heater |
| US20110247817A1 (en) * | 2010-04-09 | 2011-10-13 | Ronald Marshall Bass | Helical winding of insulated conductor heaters for installation |
| EP3068191A1 (en) * | 2015-03-12 | 2016-09-14 | Mikhail Leonidovich Strupinskiy | Skin-effect based heating cable, heating unit and method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB202208920D0 (en) | 2022-08-10 |
| GB2605722B (en) | 2024-08-14 |
| WO2021116374A1 (en) | 2021-06-17 |
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