EP1297722A1 - Heizkabel mit mehrschichtaufbau - Google Patents
Heizkabel mit mehrschichtaufbauInfo
- Publication number
- EP1297722A1 EP1297722A1 EP01273768A EP01273768A EP1297722A1 EP 1297722 A1 EP1297722 A1 EP 1297722A1 EP 01273768 A EP01273768 A EP 01273768A EP 01273768 A EP01273768 A EP 01273768A EP 1297722 A1 EP1297722 A1 EP 1297722A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating cable
- layer
- cable according
- spacer
- heating
- 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
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)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10107429A DE10107429B4 (de) | 2001-02-16 | 2001-02-16 | Heizkabel mit Mehrschichtaufbau |
DE10107429 | 2001-02-16 | ||
PCT/EP2001/011956 WO2002067630A1 (de) | 2001-02-16 | 2001-10-16 | Heizkabel mit mehrschichtaufbau |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1297722A1 true EP1297722A1 (de) | 2003-04-02 |
EP1297722B1 EP1297722B1 (de) | 2005-08-31 |
Family
ID=7674370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01273768A Revoked EP1297722B1 (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 (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101516159B1 (ko) * | 2014-05-29 | 2015-05-04 | 이민수 | 세라믹과 테프론이 코팅된 히팅케이블 |
Families Citing this family (6)
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 |
DE202008016069U1 (de) * | 2008-12-04 | 2009-12-03 | Trace Tec Begleitheizungstechnik Gmbh | Vorrichtung zur Beheizung von Oberflächen |
FR3002076B1 (fr) * | 2013-02-12 | 2022-11-11 | Nexans | Cable electrique resistant aux decharges partielles |
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 |
CN114845429A (zh) | 2017-02-01 | 2022-08-02 | 恩文特服务有限责任公司 | 自调节发热电缆 |
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 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1540897A1 (de) * | 1965-10-25 | 1970-01-02 | Eugen Kloepper Waermetechnik G | Heizkabel mit Schutzleiter |
DE2850722A1 (de) * | 1978-11-23 | 1980-05-29 | Pampus Kg | Elektrisches heizelement mit schutzleiter fuer aggressive baeder |
DE2901446C2 (de) * | 1979-01-16 | 1981-04-09 | Beck, von der, Heinz, 8011 Baldham | Heizleitung mit spezifischer Heizleistung |
DE3243061A1 (de) * | 1982-11-22 | 1984-05-24 | HEW-Kabel Heinz Eilentropp KG, 5272 Wipperfürth | Flexibles elektrisches ablaengbares heizelement |
DE3414284A1 (de) * | 1984-04-14 | 1985-10-31 | Heraeus-Wittmann Gmbh, 6450 Hanau | Elektrisches heizelement fuer rohrleitungen, insbesondere fuer lange rohrleitungen |
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 |
CA2174615A1 (en) * | 1996-04-19 | 1997-10-20 | Glenwood Franklin Heizer | Variable power limiting heat tracing cable |
GB9618289D0 (en) * | 1996-09-02 | 1996-10-16 | Warmup Plc | Heating system |
DE20006222U1 (de) * | 2000-04-06 | 2000-07-27 | Hemstedt Dieter | Elektrische Heizleitung |
-
2001
- 2001-02-16 DE DE10107429A patent/DE10107429B4/de not_active Revoked
- 2001-10-16 AT AT01273768T patent/ATE303709T1/de not_active IP Right Cessation
- 2001-10-16 EP EP01273768A patent/EP1297722B1/de not_active Revoked
- 2001-10-16 EA EA200300148A patent/EA004666B1/ru not_active IP Right Cessation
- 2001-10-16 DE DE50107297T patent/DE50107297D1/de not_active Revoked
- 2001-10-16 WO PCT/EP2001/011956 patent/WO2002067630A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO02067630A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101516159B1 (ko) * | 2014-05-29 | 2015-05-04 | 이민수 | 세라믹과 테프론이 코팅된 히팅케이블 |
Also Published As
Publication number | Publication date |
---|---|
DE50107297D1 (de) | 2005-10-06 |
EP1297722B1 (de) | 2005-08-31 |
WO2002067630A1 (de) | 2002-08-29 |
DE10107429B4 (de) | 2005-09-29 |
DE10107429A1 (de) | 2002-09-12 |
EA200300148A1 (ru) | 2003-06-26 |
ATE303709T1 (de) | 2005-09-15 |
EA004666B1 (ru) | 2004-06-24 |
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