WO2002067630A1 - Heizkabel mit mehrschichtaufbau - Google Patents
Heizkabel mit mehrschichtaufbau Download PDFInfo
- Publication number
- WO2002067630A1 WO2002067630A1 PCT/EP2001/011956 EP0111956W WO02067630A1 WO 2002067630 A1 WO2002067630 A1 WO 2002067630A1 EP 0111956 W EP0111956 W EP 0111956W WO 02067630 A1 WO02067630 A1 WO 02067630A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating cable
- layer
- cable according
- spacer
- heating
- Prior art date
Links
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
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
Definitions
- the present invention relates to a heating cable with a multilayer structure.
- the object of the present invention is to improve a heating cable in such a way that it is particularly resistant to external mechanical loads (kinks).
- a heating cable with a multi-layer structure which has at least one central, electrically conductive heating conductor and two electrically insulating and essentially air-impermeable layers, which are arranged in such a way that an air cushion can form between them.
- a spacer can be provided to avoid direct contact between the two substantially air-impermeable layers.
- the spacer can be a layer with a fibrous, braided, cell-like or porous structure.
- the spacer can be designed in the sense of a mechanical reinforcement function.
- the spacer can be a reinforcement layer made of a metallic wire mesh, which can consist of nickel-plated copper wires.
- At least one of the substantially air impermeable layers can be made of perfluoroalkoxy copolymer (PFA).
- PFA perfluoroalkoxy copolymer
- a layer of a non-metallic fiber material can be provided between at least one of the essentially air-impermeable layers and the spacer.
- the layer of a non-metallic fiber material can consist of a glass fiber ceramic tape.
- a heating cable according to the invention is designated 6.
- Such a heating cable can be used, for example, as a series heating cable for keeping the process temperature constant. Due to the structure explained in more detail below, it can also be used in potentially explosive areas.
- Such a heating cable 6 with series resistance has a constant active power defined by the voltage, the resistance and the length of the cable. For example, a process temperature of up to 280 ° C can be maintained. A typical supply voltage is 750 V. This means that output powers in the range of 25 W / min can be achieved.
- the structure of the heating cable 6 according to the invention is to be explained from the inside to the outside.
- An electrical heating conductor 1 is provided centrally in the heating cable 6. This is surrounded by a first insulation layer 2, for example made of PFA or a comparable plastic material.
- a glass fiber ceramic tape layer 3 which is shown in FIG Interaction with a reinforcing layer 4 arranged radially from it outside (as shown) or inside (not shown) provides protection against mechanical damage.
- the glass fiber ceramic tape layer 3 is formed similar to a glass silk mixed with minerals.
- the sandwich structure of the glass fiber ceramic band layer 3 / reinforcement layer 4 further increases the mechanical protective properties.
- the glass fiber ceramic tape layer 3 also prevents the reinforcement layer 4 from cutting into the PFA layer 2 located thereunder when the PFA layer 2 is thermally expanded. It should also be borne in mind that the PFA material softens at higher temperatures.
- the glass fiber ceramic tape layer 3 thus has a mechanical protective and electrical insulating function at the same time.
- a further glass fiber ceramic band layer can be provided outside the reinforcement layer 4 in addition to the glass ceramic band layer 3 already shown.
- the reinforcement layer 4 is again protected from the outside by a further electrically insulating layer 5, which can also consist, for example, of perfluoroalkoxy copolymer material (PFA).
- PFA perfluoroalkoxy copolymer material
- the two electrically insulating layers 2, 5 are both essentially and ideally completely completely impermeable to air, so that a mechanically protective air cushion is formed between them if the cross sections are dimensioned accordingly.
- the glass ceramic tape layer 3 and the reinforcement layer 4 are essentially permeable to air and therefore have the function of a spacer which prevents direct contact between the two layers 2, 5 as far as possible. Therefore, the reinforcement layer 4 is also designed in such a way that it completely surrounds the layers underneath - for example in contrast to earthing straps with a comparable structure - both with regard to the longitudinal extent and the circumferential direction of the heating cable. The complete surrounding in all dimensions guarantees that the spacer effect and thus also the protective air cushion are always present.
- This air cushioning is achieved on the one hand by the braided structure of the reinforcement layer 4 and on the other hand by a corresponding dimensioning of the inside diameter of the reinforcement layer 4 with respect to the outside diameter of the glass fiber ceramic band layer 3.
- the diameter of the reinforcement layer 4 can, for example, be deliberately overdimensioned in order to ensure a sufficient strength of the air cushion which is thereby created.
- the reinforcement layer 4 has some play with respect to the layers below it, but can be surrounded by the layer 5 in a tight manner on the outside.
- the braided structure of the reinforcement layer 4 also ensures that a certain volume of air can form between the glass fiber ceramic band layer 3 and the outer protective layer 5.
- reinforcement layer based on wire mesh
- spacers can also be used which have, for example, a porous, fibrous, braided or cell-like (open or closed) structure.
- the mechanical protective effect is achieved on the one hand by the air cushion and on the other hand by the sandwich structure.
- the advantage in terms of a synergetic effect is that both protective measures can be provided independently of one another, but complement each other in that they develop a protective effect with regard to different mechanical influences from the outside.
- the heating cable according to the invention When used as a heating cable, the heating cable according to the invention has the advantages that it is highly flexible and chemically resistant, enables constant heating power (active power), large heating circuit lengths are possible and the supply voltage can be up to 750 V.
Landscapes
- Resistance Heating (AREA)
- Insulated Conductors (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT01273768T ATE303709T1 (de) | 2001-02-16 | 2001-10-16 | Heizkabel mit mehrschichtaufbau |
DE50107297T DE50107297D1 (de) | 2001-02-16 | 2001-10-16 | Heizkabel mit mehrschichtaufbau |
EA200300148A EA004666B1 (ru) | 2001-02-16 | 2001-10-16 | Нагревательный кабель с многослойным строением |
EP01273768A EP1297722B1 (de) | 2001-02-16 | 2001-10-16 | Heizkabel mit mehrschichtaufbau |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10107429A DE10107429B4 (de) | 2001-02-16 | 2001-02-16 | Heizkabel mit Mehrschichtaufbau |
DE10107429.8 | 2001-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002067630A1 true WO2002067630A1 (de) | 2002-08-29 |
Family
ID=7674370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/011956 WO2002067630A1 (de) | 2001-02-16 | 2001-10-16 | Heizkabel mit mehrschichtaufbau |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1297722B1 (de) |
AT (1) | ATE303709T1 (de) |
DE (2) | DE10107429B4 (de) |
EA (1) | EA004666B1 (de) |
WO (1) | WO2002067630A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202008016069U1 (de) * | 2008-12-04 | 2009-12-03 | Trace Tec Begleitheizungstechnik Gmbh | Vorrichtung zur Beheizung von Oberflächen |
US20140224521A1 (en) * | 2013-02-12 | 2014-08-14 | Nexans | Electrical cable resistant to partial discharges |
CN108521689A (zh) * | 2018-05-16 | 2018-09-11 | 无锡市环球电器装备有限公司 | 智能型超长距离加热电缆 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10325517A1 (de) | 2003-06-05 | 2004-12-23 | Hew-Kabel/Cdt Gmbh & Co. Kg | Elektrische Heizleitung oder Heizband |
ITNA20130038A1 (it) * | 2013-07-05 | 2015-01-06 | Gianni Lucci | Apparecchio per il contenimento e il riscaldamento di acque ad uso domestico con funzionamento a pressione grazie all'energia elettrica prodotta da bobine elettromagnetiche |
KR101516159B1 (ko) * | 2014-05-29 | 2015-05-04 | 이민수 | 세라믹과 테프론이 코팅된 히팅케이블 |
US10966290B2 (en) | 2017-02-01 | 2021-03-30 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1540897A1 (de) * | 1965-10-25 | 1970-01-02 | Eugen Kloepper Waermetechnik G | Heizkabel mit Schutzleiter |
US4308448A (en) * | 1979-01-16 | 1981-12-29 | Beck Heinz V D | Heating cable with a specific heating capacity |
DE3414284A1 (de) * | 1984-04-14 | 1985-10-31 | Heraeus-Wittmann Gmbh, 6450 Hanau | Elektrisches heizelement fuer rohrleitungen, insbesondere fuer lange rohrleitungen |
EP0802701A2 (de) * | 1996-04-19 | 1997-10-22 | Glenwood Franklin Heizer | Heizkabel mit variablem Leistungsbegrenzer |
DE20006222U1 (de) * | 2000-04-06 | 2000-07-27 | Hemstedt Dieter | Elektrische Heizleitung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2850722A1 (de) * | 1978-11-23 | 1980-05-29 | Pampus Kg | Elektrisches heizelement mit schutzleiter fuer aggressive baeder |
DE3243061A1 (de) * | 1982-11-22 | 1984-05-24 | HEW-Kabel Heinz Eilentropp KG, 5272 Wipperfürth | Flexibles elektrisches ablaengbares heizelement |
DE8435742U1 (de) * | 1984-12-06 | 1985-04-04 | Schmidt, Hans, 5165 Hürtgenwald | Elektrische heizleitung |
US5111032A (en) * | 1989-03-13 | 1992-05-05 | Raychem Corporation | Method of making an electrical device comprising a conductive polymer |
GB9618289D0 (en) * | 1996-09-02 | 1996-10-16 | Warmup Plc | Heating system |
-
2001
- 2001-02-16 DE DE10107429A patent/DE10107429B4/de not_active Revoked
- 2001-10-16 WO PCT/EP2001/011956 patent/WO2002067630A1/de active IP Right Grant
- 2001-10-16 EP EP01273768A patent/EP1297722B1/de not_active Revoked
- 2001-10-16 AT AT01273768T patent/ATE303709T1/de not_active IP Right Cessation
- 2001-10-16 EA EA200300148A patent/EA004666B1/ru not_active IP Right Cessation
- 2001-10-16 DE DE50107297T patent/DE50107297D1/de not_active Revoked
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1540897A1 (de) * | 1965-10-25 | 1970-01-02 | Eugen Kloepper Waermetechnik G | Heizkabel mit Schutzleiter |
US4308448A (en) * | 1979-01-16 | 1981-12-29 | Beck Heinz V D | Heating cable with a specific heating capacity |
DE3414284A1 (de) * | 1984-04-14 | 1985-10-31 | Heraeus-Wittmann Gmbh, 6450 Hanau | Elektrisches heizelement fuer rohrleitungen, insbesondere fuer lange rohrleitungen |
EP0802701A2 (de) * | 1996-04-19 | 1997-10-22 | Glenwood Franklin Heizer | Heizkabel mit variablem Leistungsbegrenzer |
DE20006222U1 (de) * | 2000-04-06 | 2000-07-27 | Hemstedt Dieter | Elektrische Heizleitung |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202008016069U1 (de) * | 2008-12-04 | 2009-12-03 | Trace Tec Begleitheizungstechnik Gmbh | Vorrichtung zur Beheizung von Oberflächen |
US20140224521A1 (en) * | 2013-02-12 | 2014-08-14 | Nexans | Electrical cable resistant to partial discharges |
US9362019B2 (en) * | 2013-02-12 | 2016-06-07 | Nexans | Electrical cable resistant to partial discharges |
CN108521689A (zh) * | 2018-05-16 | 2018-09-11 | 无锡市环球电器装备有限公司 | 智能型超长距离加热电缆 |
Also Published As
Publication number | Publication date |
---|---|
EA004666B1 (ru) | 2004-06-24 |
DE10107429B4 (de) | 2005-09-29 |
EP1297722A1 (de) | 2003-04-02 |
EA200300148A1 (ru) | 2003-06-26 |
DE10107429A1 (de) | 2002-09-12 |
ATE303709T1 (de) | 2005-09-15 |
DE50107297D1 (de) | 2005-10-06 |
EP1297722B1 (de) | 2005-08-31 |
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