EP1297722B1 - Heizkabel mit mehrschichtaufbau - Google Patents
Heizkabel mit mehrschichtaufbau Download PDFInfo
- Publication number
- EP1297722B1 EP1297722B1 EP01273768A EP01273768A EP1297722B1 EP 1297722 B1 EP1297722 B1 EP 1297722B1 EP 01273768 A EP01273768 A EP 01273768A EP 01273768 A EP01273768 A EP 01273768A EP 1297722 B1 EP1297722 B1 EP 1297722B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- heating cable
- air
- heating
- reinforcing layer
- 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.)
- Revoked
Links
Images
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 multi-layer structure.
- German Offenlegungsschrift DE 34 14 284 A1 discloses an electrical heating element known for piping. Here is a coaxial heat conductor with a External insulation of Teflon-PFA described.
- the present invention has for its object to a heating cable in such a way improve it especially against external mechanical stresses (Buckling) is particularly resistant.
- a heating cable is provided with a multi-layer structure, at least a central electrically conductive heating conductor and two electrically insulating and in having substantial air-impermeable layers, which are arranged so that between them can form an air cushion.
- the spacer may be a layer of fibrous, braided, cellular or porous Be structure.
- the spacer can be designed in the sense of a mechanical reinforcement function be.
- the spacer may be a reinforcing layer of a metallic wire mesh be, which may consist of nickel-plated copper wires.
- At least one of the substantially air-impermeable layers may be made Perfluoroalkoxy copolymer (PFA) exist.
- PFA Perfluoroalkoxy copolymer
- At least one of the substantially air-impermeable layers and the Spacer may be a layer of non-metallic fiber material be.
- the layer of a non-metallic fiber material may consist of a Consist of glass fiber ceramic tape.
- a heating cable according to the invention is denoted by 6.
- Such Heating cable can be, for example, as Serienitztechnisch for process temperature constant maintenance use. Due to the structure explained in more detail below It can also be used in potentially explosive atmospheres.
- Such a heating cable 6 with series resistance has a constant, through the Voltage, the resistance and the length of the cable defined active power. For example, it can maintain a process temperature of up to 280 ° C become. A typical supply voltage is 750 V. This can be Achieve output power in the range of 25 W / min.
- an electrical heating conductor. 1 intended. This is of a first insulating layer 2, for example of PFA or from a comparable plastic material, surrounded. At this first electric Insulating layer 2 adjoins a glass fiber ceramic tape layer 3, which in Interaction with a radial of it outside (as shown) or inside (not shown) arranged reinforcing layer 4 a protection against mechanical Damage offers.
- the glass fiber ceramic tape layer 3 is similar to one with Minerals offset glass fiber formed.
- the sandwich structure of the glass fiber ceramic tape layer 3 / reinforcing layer 4 it further increases the mechanical protection properties.
- the glass fiber ceramic tape layer 3 also prevents this from occurring during a thermal Extension of the underlying PFA layer 2, the reinforcing layer 4 in this cuts. It should also be remembered that the PFA material at higher Temperatures softened.
- the glass fiber ceramic tape layer 3 thus has simultaneously mechanical protection and electrical insulation.
- the reinforcing layer 4 is outwardly again by another electrically insulating layer 5 protected, for example, from perfluoroalkoxy copolymer material (PFA) can exist.
- PFA perfluoroalkoxy copolymer material
- the two electrically insulating layers 2, 5 are both substantially and im Ideally, completely air-impermeable, so that between them at a appropriate dimensioning of their cross sections a mechanically protective air cushion formed.
- the glass ceramic tape layer 3 and the reinforcing layer 4 are in essential air permeable and therefore have the function of a spacer, the a direct contact of the two layers 2, 5 prevented as possible. Therefore, the Reinforcing layer 4 also formed so that they are the underlying layers -
- grounding straps with comparable structure - completely surrounds, both in terms of the longitudinal extent as well as 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 always available.
- This air cushioning is on the one hand by the braided structure of the Reinforcing layer 4 and on the other hand by an appropriate design of the Inner diameter of the reinforcing layer 4 with respect to the outer diameter of the Fiberglass ceramic tape layer 3 reached.
- the diameter of the reinforcing layer 4 For example, it can be deliberately oversized to ensure sufficient strength to ensure thereby adjusting air cushion.
- the reinforcing layer 4 has some play with respect to the underlying layers, but can through the layer 5 Be closely surrounded outside.
- the braided structure of the reinforcing layer 4 thus also achieves that a certain volume of air between the glass fiber ceramic tape layer 3 and the outer protective layer 5 can form.
- wire mesh-based reinforcing layer instead of the wire mesh-based reinforcing layer, too other spacers are used, for example, a porous, fibrous, braided or cellular (open or closed) structure.
- the mechanical protection effect is summarized on the one hand by the Air cushion and on the other hand achieved by the sandwich structure.
- the advantage in the sense a synergetic effect is that while both protective measures may be provided independently of each other, but complement each other so that they provide a protective effect with respect to different mechanical influences from the outside unfold.
- the heating cable according to the invention has when used as a heating cable the Advantages that it is highly flexible and chemically resistant, a constant heat output (Active power) allows 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 (4)
- Heizkabel mit Mehrschichtaufbau,
das von Innen nach Außen die folgenden Elemente aufweist:einen zentralen elektrisch leitfähigen Heizleiter (1),eine erste elektrisch isolierende und luftundurchlässige Schicht (2),ein Band (3) unmittelbar angrenzend an die erste elektrisch isolierende Schicht (2),eine Verstärkungsschicht (4) mit faseriger, geflochtener, zellartiger oder poröser Struktur, undeine zweite elektrisch isolierende und luftundurchlässige Schicht (5),
dass die Verstärkungsschicht (4) aus einem metallischen Drahtgeflecht gefertigt ist. - Heizkabel nach Anspruch 1,
dadurch gekennzeichnet, dass das metallische Drahtgeflecht (4) aus vernickelten Kupfer-Drähten besteht. - Heizkabel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass wenigstens eine der im wesentlichen luftundurchlässigen Schichten (2, 5) aus Perfluoralkoxy-Copolymer (PFA) besteht. - Heizkabel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass zur Ausbildung einer Luftpolsterschicht die Verstärkungsschicht (4) ein Übermass bezüglich der darunterliegenden Schichten aufweist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10107429 | 2001-02-16 | ||
DE10107429A DE10107429B4 (de) | 2001-02-16 | 2001-02-16 | Heizkabel mit Mehrschichtaufbau |
PCT/EP2001/011956 WO2002067630A1 (de) | 2001-02-16 | 2001-10-16 | Heizkabel mit mehrschichtaufbau |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1297722A1 EP1297722A1 (de) | 2003-04-02 |
EP1297722B1 true 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 |
---|---|---|---|---|
US11871486B2 (en) | 2017-02-01 | 2024-01-09 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
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 |
KR101516159B1 (ko) * | 2014-05-29 | 2015-05-04 | 이민수 | 세라믹과 테프론이 코팅된 히팅케이블 |
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, 74336 Brackenheim | Elektrische Heizleitung |
-
2001
- 2001-02-16 DE DE10107429A patent/DE10107429B4/de not_active Revoked
- 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 WO PCT/EP2001/011956 patent/WO2002067630A1/de active IP Right Grant
- 2001-10-16 EA EA200300148A patent/EA004666B1/ru not_active IP Right Cessation
- 2001-10-16 DE DE50107297T patent/DE50107297D1/de not_active Revoked
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11871486B2 (en) | 2017-02-01 | 2024-01-09 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
US11956865B2 (en) | 2017-02-01 | 2024-04-09 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
Also Published As
Publication number | Publication date |
---|---|
EA200300148A1 (ru) | 2003-06-26 |
ATE303709T1 (de) | 2005-09-15 |
DE50107297D1 (de) | 2005-10-06 |
EP1297722A1 (de) | 2003-04-02 |
EA004666B1 (ru) | 2004-06-24 |
DE10107429B4 (de) | 2005-09-29 |
WO2002067630A1 (de) | 2002-08-29 |
DE10107429A1 (de) | 2002-09-12 |
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