CN105208697A - Heating cable - Google Patents
Heating cable Download PDFInfo
- Publication number
- CN105208697A CN105208697A CN201510721546.0A CN201510721546A CN105208697A CN 105208697 A CN105208697 A CN 105208697A CN 201510721546 A CN201510721546 A CN 201510721546A CN 105208697 A CN105208697 A CN 105208697A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- resistance
- fiber heating
- heating body
- cable
- 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 description 102
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 67
- 239000004917 carbon fiber Substances 0.000 claims abstract description 67
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000004020 conductor Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910001006 Constantan Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910021483 silicon-carbon alloy Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
The invention discloses a heating cable which comprises conductive cable cores, a carbon fiber layer and a plurality of conductive bands, wherein the conductive cable cores are connected with a power supply through guide lines and used for supplying electric power; the carbon fiber layer comprises a plurality of carbon fiber heating bodies which are spirally wound along the conductive cable cores; the conductive bands electrically connect the carbon fiber heating bodies positioned between two adjacent conductive bands with different cable cores to form spaced resistors; the contact positions between the conductive bands and the carbon fiber heating bodies are arranged to enable the resistance of one of the specific spaced resistors of one carbon fiber heating body between two conductive bands is at least smaller than half of the resistance of the spaced resistors of other carbon fiber heating bodies.
Description
Technical field
The present invention relates to a kind of electric heater unit, especially relate to a kind of heating cable.
Background technology
At present, electrical heating elements, except having resistance wire, Electric radiant Heating Film, silicon-carbon alloy, molybdenum and tin oxide ceramics etc., also has the heating element using cable as electric heating equipment.Heating cable makes the construction of cable, take electric power as the energy, utilizes resistance wire to carry out electrified regulation, reaches a kind of electrical heating elements of the effect of heating or insulation.
Compared with other Electric heating, the heat efficiency is high, energy-conservation because having for heating cable, simplicity of design, easy for installation, pollution-free, long service life, can realize remote control and the advantage such as control automatically, makes heating cable progressively be applied in China's popularization and application.Heating cable except for except general Home Heating, also for the heat-preserving anti-freezing of oil transportation aqueduct, tank body and equipment; The insulation companion heat of hot water supply system; Outdoor facility is as the snow melting deicing on road, roof; Soil (lawn, greenery patches, greenhouse) Heat preservation, conservation of historic landmarks and sites etc.
The design of heating cable will meet following requirement: the efficiency of heating surface is high; Fail safe is good, no electromagnetic pollution; There is certain mechanical strength.Current heating cable mainly adopts wire or alloy resistance wire to do as heater element, after heating cable energising, heater wire or alloy resistance wire are heat energy electric energy conversion, send heat energy to heated body by the mode of heat transfer and far infrared radiation, reach the effect of heating or insulation.
Carbon fiber is a kind of new material of high temperature resistant, corrosion-resistant, endurance, high strength, and makes it to be widely used in fields such as Aero-Space, civil construction, electronic apparatus, medical treatment, cables because of its good physics, chemical property.In prior art, 201110073117.9 disclose a kind of carbon fiber heating cable, by arranging many carbon fiber exothermic parts of spiral winding on inner core conductor, use conductive strips carbon fiber exothermic part and out of phase two wires to be connected successively and form alternate resistance, make carbon fiber as heater element, thus realize the technique effect improving the efficiency of heating surface, effectively heat conduction.But the carbon fiber exothermic part of the prior art, is connected in parallel between each alternate resistance, when cable temperature is too high, only by reduction temperature of cutting off the electricity supply, thus can may cause underheat.
Summary of the invention
The invention provides a kind of heating cable, the above-mentioned defect of prior art can be solved.
As one aspect of the present invention, provide a kind of heating cable, comprising: conductive cable core, it is connected with power lead, for transmission of electric energy; Carbon fiber layer, comprises many carbon fiber heating bodies, and it is arranged along conductive cable core spiral winding; Multiple conductive strips, the carbon fiber heating body between two adjacent conductive strips is electrically connected from different cable cores and forms alternate resistance by it; The projection of described conductive strips in described cable longitudinal section, makes the resistance of between the specific phase of the wherein carbon fiber heating body between two conductive strips in resistance at least be less than the half of the resistance of the alternate resistance of all the other carbon fiber heating bodies not point-blank.
Preferably, by arranging the contact position of described conductive strips and described multiple carbon fiber heating body, resistance between described specific phase is distributed in each carbon fiber heating body successively.
Preferably, the specific carbon fiber heating body section that described resistance is at least less than the alternate resistance of the half of the resistance of all the other alternate resistance corresponding comprises three parts, first carbon fiber heating body section, the second carbon fiber heating body section and fusing section, described fusing section is positioned in the middle of the first carbon fiber heating body section and the second carbon fiber heating body section, when the temperature of described heating cable exceedes specific threshold, described fusing section carries out fusing makes this carbon fiber heating body section open circuit.
Interchangeable, the specific carbon fiber heating body section that described resistance is at least less than the alternate resistance of the half of the resistance of all the other alternate resistance corresponding comprises three parts, first carbon fiber heating body section, the second carbon fiber heating body section and adjustment section, described adjustment section is positioned in the middle of the first carbon fiber heating body section and the second carbon fiber heating body section, it comprises the resistance material of positive temperature coefficient, when the temperature of described heating cable exceedes particular adjustments threshold value, the resistance of described adjustment section occurs that rank more increase, thus reduces the heat of heating cable.
Preferably, the particular adjustments threshold value corresponding to adjustment section in every section of specific carbon fiber heating body section is different.
Preferably, described conductive cable core uses nichrome, constantan or copper cash as electric conductor.
Preferably, outside described electric conductor, inner insulating layer is set.
Preferably, the restrictive coating being arranged at ragged edge is also comprised.
Accompanying drawing explanation
Fig. 1 is the structural representation of heating cable of the present invention.
Fig. 2 is the circuit diagram that alternate resistance of the present invention is corresponding.
Fig. 3 of the present inventionly has the circuit diagram regulating the alternate resistance of section corresponding.
Embodiment
In order to be illustrated more clearly in technical scheme of the present invention, below use embodiment is introduced simply to the present invention, apparently, in the following describes is only one embodiment of the present of invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other technical scheme can also be obtained according to these embodiments, also belong to open scope of the present invention.
The heating cable of the embodiment of the present invention, see Fig. 1, comprises and is positioned at restrictive coating 1, electric conductor 2, inner insulating layer 3, many carbon fiber heating bodies and many conductive strips.Restrictive coating 1 is positioned at the outermost layer of heating cable, for protecting whole heating cable, can use the structure of high-density polyethylene outer sheath.
Electric conductor 2 and inner insulating layer 3 define conductive cable core 4, and it is connected with power supply, for transmission of electric energy, uses two-phase power supply as the power supply of heating cable in the present embodiment.Electric conductor 2 uses constantan or copper cash as conductor, and inner insulating layer uses mica tape as insulating material.
Use two carbon fiber heating bodies 5 and 6 as exothermic material in embodiment in Fig. 1, it is electrically connected from different cable cores by conductive strips and forms alternate resistance.Conductive strips are alternately electrically connected successively with each phase of two-phase power supply, and are electrically connected with carbon fiber exothermic part 5 and 6 respectively, thus form loop between power supply and each section of carbon fiber exothermic part 5 and 6.
As shown in fig. 1, conductive strips comprise the conductive strips 7 of the first shape of spaced arrangement and the conductive strips 8 of the second shape, wherein the projection of shape of the conductive strips 1 of the first shape on heating cable longitudinal section is "-", the projection of shape of conductive strips on heating cable longitudinal section of the second shape be "
".By being arranged alternately of the conductive strips of two kinds of shapes, the carbon fiber heating body 5 and 6 between adjacent two conductive strips 7 and 8 is made to have respective alternate resistance, preferably, the wherein alternate resistance of a carbon fiber heating body in this section is made to be less than the half of the alternate resistance of another one.
The circuit diagram of above-described embodiment is see Fig. 2, and the alternate resistance of the first paragraph of carbon fiber heating body 5 between conductive strips 7 and conductive strips 8 is 10, and it is less than the alternate resistance 11 of the first paragraph of carbon fiber heating body 6 between conductive strips 7 and conductive strips 8., the alternate resistance of the first paragraph of carbon fiber heating body 5 between conductive strips 7 and conductive strips 8 is 10, and it is less than the alternate resistance 11 of the first paragraph of carbon fiber heating body 6 between conductive strips 7 and conductive strips 8.By such setting, make to there is the minimum resistance being less than all the other resistance half between each section of electric conductor, when the temperature of heating cable is too high, control the resistance of this minimum resistance section, the control strengthening its resistance or make its open circuit can realize for heating cable temperature, and the heating of all the other alternate resistance can not be affected.
The specific carbon fiber heating body section of alternate resistance 10 and 13 correspondence can be set to comprise three parts, first carbon fiber heating body section, the second carbon fiber heating body section and fusing section, fusing section is positioned in the middle of the first carbon fiber heating body section and the second carbon fiber heating body section, when the temperature of heating cable exceedes specific threshold, described fusing section carries out fusing makes this carbon fiber heating body section open circuit.
Preferably, as shown in Figure 3, the specific carbon fiber heating body section of alternate resistance 10 and 13 correspondence can be set to comprise three parts, first carbon fiber heating body section, second carbon fiber heating body section and adjustment section 14 and 15, section 14 and 15 is regulated to be positioned in the middle of the first carbon fiber heating body section and the second carbon fiber heating body section, it comprises the resistance material of positive temperature coefficient, when the temperature of heating cable exceedes particular adjustments threshold value, rank more increase to regulate the resistance of section 14 and 15 to occur, thus reduce the heat of heating cable, preferably, resistance after this increase magnitude higher than the resistance of alternate resistance 10 and 13.Preferably, regulate section 14 to use the resistance material of different positive temperature coefficients with 15, make the particular adjustments threshold value difference corresponded to, thus make this heating cable can carry out the adjustment of different temperatures.
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. a heating cable, comprising: conductive cable core, and it is connected with power lead, for transmission of electric energy; Carbon fiber layer, comprises many carbon fiber heating bodies, and it is arranged along conductive cable core spiral winding; Multiple conductive strips, the carbon fiber heating body between two adjacent conductive strips is electrically connected from different cable cores and forms alternate resistance by it; It is characterized in that: the contact position that described conductive strips and described multiple carbon fiber heating body are set, make the resistance of between the specific phase of the wherein carbon fiber heating body between two conductive strips in resistance at least be less than the half of the resistance of the alternate resistance of all the other carbon fiber heating bodies.
2. heating cable according to claim 1, is characterized in that: the contact position arranging described conductive strips and described multiple carbon fiber heating body, and resistance between described specific phase is distributed in each carbon fiber heating body successively.
3. heating cable according to claim 2, it is characterized in that: the specific carbon fiber heating body section that described resistance is at least less than the alternate resistance of the half of the resistance of all the other alternate resistance corresponding comprises three parts, first carbon fiber heating body section, the second carbon fiber heating body section and fusing section, described fusing section is positioned in the middle of the first carbon fiber heating body section and the second carbon fiber heating body section, when the temperature of described heating cable exceedes described specific threshold, described fusing section carries out fusing makes this carbon fiber heating body section open circuit.
4. heating cable according to claim 3, is characterized in that: described conductive cable core uses constantan or copper cash as electric conductor.
5. heating cable according to claim 4, is characterized in that: arrange inner insulating layer outside described electric conductor.
6. heating cable according to claim 5, is characterized in that: also comprise the restrictive coating being arranged at ragged edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510721546.0A CN105208697B (en) | 2015-10-30 | 2015-10-30 | A kind of carbon fiber heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510721546.0A CN105208697B (en) | 2015-10-30 | 2015-10-30 | A kind of carbon fiber heating cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105208697A true CN105208697A (en) | 2015-12-30 |
| CN105208697B CN105208697B (en) | 2017-12-08 |
Family
ID=54956028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510721546.0A Active CN105208697B (en) | 2015-10-30 | 2015-10-30 | A kind of carbon fiber heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105208697B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143619A (en) * | 2011-03-25 | 2011-08-03 | 李季 | Heating cable for oil well |
| CN202261876U (en) * | 2011-09-23 | 2012-05-30 | 潘明清 | Completely conductive bridge type electric heating belt |
| CN103428911A (en) * | 2012-05-17 | 2013-12-04 | 河南科信电缆有限公司 | Energy-saving and heat-emitting carbon fiber cable |
| CN103428913A (en) * | 2012-05-17 | 2013-12-04 | 河南科信电缆有限公司 | Carbon fiber geothermal cable |
| KR20150093558A (en) * | 2014-02-07 | 2015-08-18 | 주식회사 광세로 | Heating line with fire protection function |
-
2015
- 2015-10-30 CN CN201510721546.0A patent/CN105208697B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143619A (en) * | 2011-03-25 | 2011-08-03 | 李季 | Heating cable for oil well |
| CN202261876U (en) * | 2011-09-23 | 2012-05-30 | 潘明清 | Completely conductive bridge type electric heating belt |
| CN103428911A (en) * | 2012-05-17 | 2013-12-04 | 河南科信电缆有限公司 | Energy-saving and heat-emitting carbon fiber cable |
| CN103428913A (en) * | 2012-05-17 | 2013-12-04 | 河南科信电缆有限公司 | Carbon fiber geothermal cable |
| KR20150093558A (en) * | 2014-02-07 | 2015-08-18 | 주식회사 광세로 | Heating line with fire protection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105208697B (en) | 2017-12-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171103 Address after: 401320 Chongqing city Banan District Yudong textile village three Applicant after: CHONGQING MUYUE MACHINERY MANUFACTURING CO.,LTD. Address before: Yang Qiao Road, Gulou District of Fuzhou city of Fujian Province, No. 50 350108 Applicant before: Huang Yanyun |
|
| TA01 | Transfer of patent application right | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cao Bingying Inventor after: Cao Deli Inventor after: Zhao Hui Inventor after: Liu Kunpeng Inventor before: Huang Yanyun |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171110 Address after: 277599 parallel South Road, Zaozhuang, Tengzhou, Shandong Applicant after: SHANDONG HUANENG CABLE Ltd. Address before: 401320 Chongqing city Banan District Yudong textile village three Applicant before: CHONGQING MUYUE MACHINERY MANUFACTURING CO.,LTD. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Carbon fiber heating cable Effective date of registration: 20190515 Granted publication date: 20171208 Pledgee: Tengzhou Branch of Zaozhuang Bank Co.,Ltd. Pledgor: SHANDONG HUANENG CABLE Ltd. Registration number: 2019990000429 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200804 Granted publication date: 20171208 Pledgee: Tengzhou Branch of Zaozhuang Bank Co.,Ltd. Pledgor: SHANDONG HUANENG CABLE Ltd. Registration number: 2019990000429 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Denomination of invention: A carbon fiber heating cable Effective date of registration: 20200804 Granted publication date: 20171208 Pledgee: Tengzhou Branch of Zaozhuang Bank Co.,Ltd. Pledgor: SHANDONG HUANENG CABLE Ltd. Registration number: Y2020990000878 |
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Date of cancellation: 20210715 Granted publication date: 20171208 Pledgee: Tengzhou Branch of Zaozhuang Bank Co.,Ltd. Pledgor: SHANDONG HUANENG CABLE Ltd. Registration number: Y2020990000878 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Carbon fiber heating cable Effective date of registration: 20210715 Granted publication date: 20171208 Pledgee: Tengzhou Branch of Zaozhuang Bank Co.,Ltd. Pledgor: SHANDONG HUANENG CABLE Ltd. Registration number: Y2021990000611 |
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Date of cancellation: 20220722 Granted publication date: 20171208 Pledgee: Tengzhou Branch of Zaozhuang Bank Co.,Ltd. Pledgor: SHANDONG HUANENG CABLE Ltd. Registration number: Y2021990000611 |
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Denomination of invention: A carbon fiber heating cable Effective date of registration: 20220728 Granted publication date: 20171208 Pledgee: Tengzhou Branch of Zaozhuang Bank Co.,Ltd. Pledgor: SHANDONG HUANENG CABLE Ltd. Registration number: Y2022990000489 |
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Denomination of invention: A carbon fiber heating cable Effective date of registration: 20230727 Granted publication date: 20171208 Pledgee: Tengzhou Branch of Zaozhuang Bank Co.,Ltd. Pledgor: SHANDONG HUANENG CABLE Ltd. Registration number: Y2023980050022 |
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