CN112399656A - High-temperature constant-power electric tracing band - Google Patents
High-temperature constant-power electric tracing band Download PDFInfo
- Publication number
- CN112399656A CN112399656A CN202011279063.7A CN202011279063A CN112399656A CN 112399656 A CN112399656 A CN 112399656A CN 202011279063 A CN202011279063 A CN 202011279063A CN 112399656 A CN112399656 A CN 112399656A
- Authority
- CN
- China
- Prior art keywords
- tracing band
- electric tracing
- elastic
- temperature constant
- port
- 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.)
- Pending
Links
- 238000009413 insulation Methods 0.000 claims abstract description 42
- 230000008602 contraction Effects 0.000 claims abstract description 20
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 2
- 238000011900 installation process Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 34
- 239000000945 filler Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
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
- H05B3/565—Heating cables flat cables
Abstract
The invention provides a high-temperature constant-power electric tracing band, which comprises: the insulation filling belt is internally provided with through holes and conducting wires at intervals; a composite layer is arranged between the outer surface of the lead and the insulating filling belt; a heat conduction layer is arranged between the outer surface of the composite layer and the insulating filling belt; the through hole is provided with a first port and a second port in the length direction of the insulation filling belt; one end of the elastic contraction piece is connected to the first port of the perforation; the other end of the elastic contraction piece is connected to the second port of the perforation, and the elastic contraction piece is in a contraction state in the perforation. According to the invention, the elastic shrinkage piece in a shrinkage state is arranged in the insulation filling band, so that the electric tracing band is subjected to tension in the length direction of the insulation filling band, the elastic shrinkage piece can counteract the tension by elasticity, and the tension on the electric tracing band is reduced, so that the purpose of protecting the electric tracing band is achieved, and the phenomenon that the electric tracing band is pulled in the installation process is avoided.
Description
Technical Field
The invention relates to the technical field of heat tracing bands, in particular to a high-temperature constant-power electric heat tracing band.
Background
In the related art, the electric tracing band is a heating cable, and an effective loop is formed through a certain resistance, so that the heating or tracing effect is achieved. The electric heat tracing band is usually wound on a pipeline to achieve the purposes of heating and heat preservation, but the purpose of pulling the heat tracing band is inevitably generated in the installation process, so that the phenomenon of pulling the heat tracing band in the installation process is generated, and the working stability of the heat tracing band is influenced.
Therefore, it is necessary to develop a high-temperature constant-power electric tracing band for solving at least one of the above technical problems.
Disclosure of Invention
The invention aims to provide a high-temperature constant-power electric tracing band to avoid the phenomenon that the tracing band is pulled in the installation process.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides a high-temperature constant-power electric tracing band, which comprises:
the insulation filling belt is internally provided with through holes and conducting wires at intervals, a composite layer is arranged between the outer surface of each conducting wire and the insulation filling belt, a heat conduction layer is arranged between the outer surface of the composite layer and the insulation filling belt, and the through holes are provided with a first port and a second port in the length direction of the insulation filling belt;
one end of the elastic contraction piece is connected to the first port of the perforation, the other end of the elastic contraction piece is connected to the second port of the perforation, and the elastic contraction piece is in a contraction state in the perforation.
In some embodiments of the invention, the inner wall of the perforation is provided with a thermal insulation layer arranged around the elastic contraction member.
In some embodiments of the present invention, in the length direction of the insulation filling tape, a plurality of first positioning portions are provided at intervals on the outer wall surface of the insulation layer, and each of the first positioning portions extends into the insulation filling tape to limit displacement between the insulation filling tape and the insulation layer.
In some embodiments of the present invention, each of the first positioning portions includes a plurality of first positioning protrusions arranged at intervals in a circumferential direction of the heat insulating layer.
In some embodiments of the present invention, the first positioning projections of two adjacent first positioning portions are arranged offset in the circumferential direction of the heat insulating layer.
In some embodiments of the invention, the perforations have a pore size smaller than the cross-sectional diameter of the elastic constrictions.
In some embodiments of the present invention, the number of the elastic shrinking members is plural, the insulating filling tape is provided with a plurality of the through holes at intervals, and the plurality of the elastic shrinking members are arranged in the plurality of the through holes in a one-to-one correspondence.
In some embodiments of the present invention, in the length direction of the insulation filling tape, a plurality of second positioning portions are provided at intervals on the outer wall surface of the heat conduction layer, and each of the second positioning portions extends into the insulation filling tape to limit the displacement between the insulation filling tape and the heat conduction layer.
In some embodiments of the present invention, each of the second positioning portions includes a plurality of second positioning protrusions arranged at intervals in a circumferential direction of the heat conductive layer.
In some embodiments of the present invention, the elastic contracting member comprises a rubber rope, and both ends of the rubber rope are provided with a limiting part;
the two ends of the insulating filling belt are provided with grooves, the first port is arranged at the bottom of one of the grooves, the second port is arranged at the bottom of the other groove, and the two limiting parts are correspondingly abutted to the bottom surfaces of the two grooves one by one.
The high-temperature constant-power electric tracing band has the characteristics and advantages that: when the conducting wire is electrified, current flows through the conducting wire, the current generates heat under the resistance of the composite layer, and the heat is led out through the heat conducting layer, so that the heat conducting work of the heat tracing band is completed.
Meanwhile, the elastic shrinkage piece in a shrinkage state is arranged in the insulating filling belt, so that the electric tracing band is pulled in the length direction of the insulating filling belt, the elastic shrinkage piece can offset the partial pulling force through elastic force, the pulling force on the electric tracing band is reduced, the purpose of protecting the electric tracing band is achieved, and the phenomenon that the electric tracing band is dragged in the installation process is avoided.
In addition, when the heat tracing band is wound on the pipeline, the elastic shrinkage piece in a shrinkage state can increase the tightening force of the electric heat tracing band wound on the pipeline, so that the electric heat tracing band and the pipeline are more attached, the heat transfer rate is improved, and the heat loss is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a sectional view of a high-temperature constant-power electric tracing band according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of another angle of a high-temperature constant-power electric tracing band according to an embodiment of the present invention;
fig. 3 is a further angle sectional view of a high temperature constant power electric tracing band according to an embodiment of the present invention.
The reference numbers illustrate:
1. an insulating filler tape; 11. perforating; 12. a wire; 13. compounding layers; 14. a heat conductive layer; 15. a groove;
2. an elastic contracting member; 21. a rubber cord; 22. a limiting part;
3. a thermal insulation layer;
4. a first positioning portion; 41. a first positioning protrusion;
5. a second positioning portion; 51. a second positioning projection;
6. a protective outer sleeve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
as shown in fig. 1 to 3, the present invention provides a high-temperature constant-power electric tracing band, including: the insulation filling belt 1 is internally provided with through holes 11 and wires 12 at intervals, a composite layer 13 is arranged between the outer surface of each wire 12 and the insulation filling belt 1, a heat conduction layer 14 is arranged between the outer surface of the composite layer 13 and the insulation filling belt 1, and the through holes 11 are provided with a first port and a second port in the length direction of the insulation filling belt 1; one end of the elastic contraction part 2 is connected to the first port of the perforation 11, the other end of the elastic contraction part 2 is connected to the second port of the perforation 11, and the elastic contraction part 2 is in a contraction state in the perforation 11.
It will be understood that when the wires 12 are energized, an electric current flows through the wires 12, and the resistance of the composite layer 13 causes the electric current to generate heat, which is conducted away through the heat conductive layer 14, thereby completing the heat conduction of the heat trace.
Meanwhile, the elastic shrinkage part 2 in a shrinkage state is arranged in the insulating filling band 1, so that the electric tracing band is pulled in the length direction of the insulating filling band 1, the elastic shrinkage part 2 can counteract the pulling force by elasticity, the pulling force on the electric tracing band is reduced, the purpose of protecting the electric tracing band is achieved, and the phenomenon that the electric tracing band is pulled in the installation process is avoided.
In addition, when the electric tracing band is wound on the pipeline, the elastic contraction part 2 in a contraction state can increase the tightening force of the electric tracing band wound on the pipeline, so that the electric tracing band is more attached to the pipeline, the heat transfer rate is improved, and the heat loss is reduced.
It should be noted that the composite layer 13 may be a thermoplastic resin composite layer 13, since the thermoplastic resin means a resin material having the characteristics of softening by heat and hardening by cooling, and having no chemical reaction, and maintaining such properties regardless of the number of times of repeating heating and cooling, any thermoplastic resin having a molecular structure of a linear type including all of the polymeric resins and partially condensed resins has good toughness, a large damage tolerance, and a good dielectric constant, and has no limitation in storage period, and particularly, it has the characteristics of good recyclability, and no environmental pollution.
In some embodiments of the present invention, a protective outer jacket 6 formed of a polyethylene protective layer material is provided on the outside of the insulating filler strip 1, thereby preventing damage to the outside of the insulating filler strip 1.
Example two:
the present embodiment differs from the above embodiments in that:
in some embodiments of the invention, the inner wall of the perforation 11 is provided with a thermal insulation layer 3 arranged around the elastic shrink element 2. Thereby, the heat generated from the lead wire 12 is prevented from damaging the elastic contractible member 2.
In some embodiments of the present invention, in the length direction of the insulation filling tape 1, a plurality of first positioning portions 4 are provided at intervals on the outer wall surface of the insulation layer 3, and each of the first positioning portions 4 extends into the insulation filling tape 1 to limit the displacement between the insulation filling tape 1 and the insulation layer 3. This improves the stability of the electric tracing band.
In some embodiments of the present invention, each of the first positioning portions 4 includes a plurality of first positioning protrusions 41 arranged at intervals in the circumferential direction of the heat insulating layer 3. This improves the stability between the insulating filler tape 1 and the thermal insulation layer 3.
In some embodiments of the present invention, the first positioning protrusions 41 of two adjacent first positioning portions 4 are arranged in a staggered manner in the circumferential direction of the heat insulating layer 3. This further improves the stability between the insulating filler tape 1 and the thermal insulation layer 3.
In some embodiments of the invention, the perforations 11 have a diameter smaller than the cross-sectional diameter of the elastic shrink 2. Thereby, the elastic contractible member 2 can be made to freely expand and contract.
Example three:
the present embodiment differs from the above embodiments in that:
in some embodiments of the present invention, the number of the elastic contraction members 2 is multiple, a plurality of the through holes 11 are arranged at intervals in the insulation filling tape 1, and a plurality of the elastic contraction members 2 are arranged in a one-to-one correspondence in the plurality of the through holes 11. Thereby, the elasticity of the elastic shrinkage member 2 is increased to better protect the electric tracing band.
In some embodiments of the present invention, a plurality of second positioning portions 5 are spaced apart from each other on the outer wall surface of the heat conductive layer 14 in the length direction of the insulation filling tape 1, and each of the second positioning portions 5 extends into the insulation filling tape 1 to limit the displacement between the insulation filling tape 1 and the heat conductive layer 14. This improves the stability of the electric tracing band.
In some embodiments of the present invention, each of the second positioning portions 5 includes a plurality of second positioning protrusions 51 arranged at intervals in the circumferential direction of the heat conductive layer 14. Thereby, the stability of the insulating and filling tape 1 and the heat conductive layer 14 is further improved.
In some embodiments of the present invention, the elastic contracting element 2 comprises a rubber rope 21, and both ends of the rubber rope 21 are provided with a limiting part 22; both ends of insulating filling area 1 all are equipped with recess 15, first port sets up one of them the bottom of recess 15, the second port sets up another the bottom of recess 15, two spacing portion 22 one-to-one ground ends to two on the bottom surface of recess 15.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A high temperature constant power electric tracing band, comprising:
the insulation filling belt is internally provided with through holes and conducting wires at intervals; a composite layer is arranged between the outer surface of the lead and the insulating filling belt; a heat conduction layer is arranged between the outer surface of the composite layer and the insulating filling belt; the through hole has a first port and a second port in a length direction of the insulation filling tape;
an elastic retractor, one end of said elastic retractor being attached to said first port of said aperture; the other end of the elastic contraction member is connected to the second port of the perforation; the elastic contraction member is in a contracted state in the perforation.
2. The electric tracing band of claim 1, wherein the inner wall of the through hole is provided with a heat insulation layer surrounding the elastic shrinkage member.
3. The electric tracing band of claim 2, wherein a plurality of first positioning portions are provided at intervals on an outer wall surface of the insulation layer in a length direction of the insulation filling band; each first positioning part extends into the insulation filling belt to limit the displacement between the insulation filling belt and the heat insulation layer.
4. The high-temperature constant-power electric tracing band according to claim 3, wherein each of the first positioning portions comprises a plurality of first positioning protrusions arranged at intervals in a circumferential direction of the heat insulating layer.
5. The high-temperature constant-power electric tracing band according to claim 1, wherein a plurality of first positioning protrusions of two adjacent first positioning portions are arranged in a staggered manner in a circumferential direction of the heat insulating layer.
6. The high temperature constant power electric tracing band of claim 1, wherein the perforations have a pore size smaller than a cross-sectional diameter of the elastic shrinkage member.
7. The high temperature constant power electric tracing band of claim 1, wherein the elastic shrinkage member is plural; the insulating filling belt is internally provided with a plurality of through holes at intervals, and the elastic contraction pieces are correspondingly arranged in the through holes one by one.
8. The high-temperature constant-power electric tracing band according to claim 1, wherein a plurality of second positioning portions are provided at intervals on an outer wall surface of the heat conductive layer in a length direction of the insulating filling band; each second positioning part extends into the insulating filling belt to limit the displacement between the insulating filling belt and the heat conduction layer.
9. The high-temperature constant-power electric tracing band according to claim 8, wherein each of the second positioning portions comprises a plurality of second positioning protrusions arranged at intervals in a circumferential direction of the heat conductive layer.
10. The high-temperature constant-power electric tracing band according to claim 1, wherein the elastic shrinkage member comprises a rubber rope, and both ends of the rubber rope are provided with limit parts;
grooves are formed in two ends of the insulating filling belt, and the first port is arranged at the bottom of one groove; the second port is arranged at the bottom of the other groove, and the two limiting parts are correspondingly abutted against the bottom surfaces of the two grooves one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279063.7A CN112399656A (en) | 2020-11-16 | 2020-11-16 | High-temperature constant-power electric tracing band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279063.7A CN112399656A (en) | 2020-11-16 | 2020-11-16 | High-temperature constant-power electric tracing band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112399656A true CN112399656A (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011279063.7A Pending CN112399656A (en) | 2020-11-16 | 2020-11-16 | High-temperature constant-power electric tracing band |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117460104A (en) * | 2023-11-13 | 2024-01-26 | 绍兴一叶电子股份有限公司 | Heating wire and manufacturing process thereof |
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| CN209374123U (en) * | 2019-03-01 | 2019-09-10 | 中坤电线(深圳)有限公司 | Outdoor water-proof security protection electric wire |
| CN211019291U (en) * | 2019-11-28 | 2020-07-14 | 江苏斯泰尔电热电器有限公司 | High-temperature constant-power heat tracing band |
| CN211237772U (en) * | 2019-12-31 | 2020-08-11 | 广州博高材料科技有限公司 | Novel photoelectric integrated cable |
| CN211427872U (en) * | 2020-03-30 | 2020-09-04 | 江西联创电缆有限公司 | Novel marine power cable of insulating flexible armor |
-
2020
- 2020-11-16 CN CN202011279063.7A patent/CN112399656A/en active Pending
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| JP2017107761A (en) * | 2015-12-10 | 2017-06-15 | 富士電機株式会社 | Insulation structure and insulating member |
| KR101609675B1 (en) * | 2015-12-24 | 2016-04-05 | 한팔오 | Electric heating cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117460104A (en) * | 2023-11-13 | 2024-01-26 | 绍兴一叶电子股份有限公司 | Heating wire and manufacturing process thereof |
| CN117460104B (en) * | 2023-11-13 | 2024-04-09 | 绍兴一叶电子股份有限公司 | Heating wire and manufacturing process thereof |
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Application publication date: 20210223 |