CN101772227A - Armored heating cable - Google Patents
Armored heating cable Download PDFInfo
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- CN101772227A CN101772227A CN201010101513A CN201010101513A CN101772227A CN 101772227 A CN101772227 A CN 101772227A CN 201010101513 A CN201010101513 A CN 201010101513A CN 201010101513 A CN201010101513 A CN 201010101513A CN 101772227 A CN101772227 A CN 101772227A
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- resistance
- heating
- insulating layer
- cable
- inorganic insulating
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Abstract
The invention relates to an armored heating cable, which comprises a metal sheath and an inorganic insulating layer, wherein the metal sheath comprises a seamless continuous stainless steel tube or a copper tube in which the inorganic insulating layer is arranged; a heating core wire is arranged in the inorganic insulating layer; the inorganic insulating layer comprises high purity, high temperature and electrofusion crystallized magnesia; and the heating core wire comprises one or more alloy heating wires. The armored heating cable of the invention has the advantages of adoption of mica isolating coating technology to substitute the traditional inorganic insulation filling technology, the improved rate of finished products and insulativity of the cable, and the greatly shorten manufacturing time of the finished products; and the invention can basically solve the aging problem, greatly prolong the service life, has good chemical stability, good mechanical property, and twisting resistance, extruding resistance, bending resistance, pulling resistance, friction resistance and general rough handling resistance.
Description
Technical field
The present invention relates to a kind of cable, relate in particular to a kind of armouring heating cable.
Background technology
Armouring heating cable (often referring to mineral insulation heating cable) is by protection metal pipe, inorganic matter insulant (as magnesium oxide, aluminium oxide etc.) and the combination of heating wire material and through compaction die, have withstand voltage, antidetonation, flexible, energy-conservation, high impermeable, radiation hardness, explosion-proof, safe and reliable, easy for installation, advantages such as mechanical strength is high, long service life, can be widely used in industrial department and research and teaching fields such as Aero-Space, nuclear energy, oil, chemical industry, building, machinery, electric power energy; Its structure mainly is made up of metallic sheath, insulating barrier and armouring heating element, can conveniently insert power supply.The traditional inorganic insulation filling technique of the general employing of present similar cable cold junction expends at needs under the inferior position situation of more process time, also can cause the rate of finished products and the insulativity of producing cable to reduce; In addition, do not reach standard in durability, high temperature resistant, mechanical properties.
Summary of the invention
At above defective, the purpose of this invention is to provide a kind of improved rate of finished products and insulativity, heating evenly, the armouring heating cable that can shorten process time, to solve many deficiencies of prior art.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of armouring heating cable comprises metallic sheath and inorganic insulation layer, and described metallic sheath is made up of seamless continuous stainless steel or copper pipe, and its inside is provided with inorganic insulation layer, and described inorganic insulation layer inside is provided with the heating heart yearn; Described inorganic insulation layer is made up of high-purity, high temperature, electric smelting crystal magnesium oxide, and described heating heart yearn is made up of single or many heating alloies.
The beneficial effect of armouring heating cable of the present invention is: adopt mica to isolate coating technology and substituted traditional inorganic insulation filling technique, not only improved the rate of finished products and the insulativity of cable, the Production Time of finished product is shortened greatly; Fire prevention, fire-retardant, can not produce toxic gas, because of cable has reliable metallic seal pipe and ground connection good, be particularly suitable for various explosion-proof places; Magnesium oxide insulating barrier magnesium oxide is a kind of inorganic substances, and core and oversheath constitute by metal, can fundamentally solve problem of aging, have prolonged useful life greatly; Have good chemical stability, mechanicalness is preferable, anti-twisting, extruding, bending, draws, rubs and general big and heavy carrying; Because of the heating system of this cable belongs to the resistor-type electric heating element of series connection, so generate heat evenly, the total length temperature difference is minimum, and heating power is big, is easy to winter construction and maintenance.
Description of drawings
According to embodiment and accompanying drawing the present invention is described in further detail below.
Fig. 1 is the cross section structure schematic diagram of the described armouring heating cable of the embodiment of the invention.
Among the figure:
1, metallic sheath; 2, inorganic insulation layer; 3, heating heart yearn; 4, cold junction heart yearn; 5, mica paper; 6, metal adapter sleeve.
Embodiment
As shown in Figure 1, armouring heating cable of the present invention, comprise metallic sheath 1 and inorganic insulation layer 2, described metallic sheath 1 is made up of seamless continuous stainless steel or copper pipe, its inside is provided with inorganic insulation layer 2, described inorganic insulation layer 2 is made up of high-purity, high temperature, electric smelting crystal magnesium oxide and its inside is provided with single or many heating alloies as heating heart yearn 3; The other end of described metallic sheath 1 is provided with cold junction heart yearn 4, and the middle part binding end of metallic sheath 1 is provided with metal adapter sleeve 6 and its inside is provided with mica paper 5.Produce heat on the tandem resistance heating core of electric current by cable, therefore heatable even; Stainless steel sheath can satisfy the needs of hot conditions and big heating power and the needs of hot conditions and long-distance transport pipes companion heat.
Claims (3)
1. armouring heating cable, comprise metallic sheath (1) and inorganic insulation layer (2), it is characterized in that: described metallic sheath (1) is made up of seamless continuous stainless steel or copper pipe, and its inside is provided with inorganic insulation layer (2), and described inorganic insulation layer (2) inside is provided with heating heart yearn (3).
2. armouring heating cable according to claim 1 is characterized in that: described inorganic insulation layer (2) is made up of high-purity, high temperature, electric smelting crystal magnesium oxide.
3. armouring heating cable according to claim 1 is characterized in that: described heating heart yearn (3) is made up of single or many heating alloies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010101513A CN101772227A (en) | 2010-01-27 | 2010-01-27 | Armored heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010101513A CN101772227A (en) | 2010-01-27 | 2010-01-27 | Armored heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101772227A true CN101772227A (en) | 2010-07-07 |
Family
ID=42504693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010101513A Pending CN101772227A (en) | 2010-01-27 | 2010-01-27 | Armored heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101772227A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687110A (en) * | 2013-12-30 | 2014-03-26 | 苏州市东仪自控设备有限公司 | Heat tracing cable |
| CN112588038A (en) * | 2020-11-25 | 2021-04-02 | 沈阳市中色测温仪表材料研究所有限公司 | Prefabricated cold end method |
| CN113271694A (en) * | 2021-04-09 | 2021-08-17 | 黄小来 | Heating cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060611U (en) * | 1989-12-07 | 1990-08-15 | 天津市金园新技术发展部 | Pipe thermal electric cable |
| CN2362253Y (en) * | 1999-03-23 | 2000-02-02 | 武志远 | Mineral insulated heating cable |
| CN201237942Y (en) * | 2008-06-26 | 2009-05-13 | 四川明星电缆有限公司 | Impact, high temperature and flame-resistant cable |
| CN101527405A (en) * | 2008-03-04 | 2009-09-09 | 上海电缆研究所 | Cold end connecting device for heating cable and connecting method thereof |
| CN201608922U (en) * | 2010-01-27 | 2010-10-13 | 无锡赛丰仪表有限公司 | Armoured heating cable |
-
2010
- 2010-01-27 CN CN201010101513A patent/CN101772227A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060611U (en) * | 1989-12-07 | 1990-08-15 | 天津市金园新技术发展部 | Pipe thermal electric cable |
| CN2362253Y (en) * | 1999-03-23 | 2000-02-02 | 武志远 | Mineral insulated heating cable |
| CN101527405A (en) * | 2008-03-04 | 2009-09-09 | 上海电缆研究所 | Cold end connecting device for heating cable and connecting method thereof |
| CN201237942Y (en) * | 2008-06-26 | 2009-05-13 | 四川明星电缆有限公司 | Impact, high temperature and flame-resistant cable |
| CN201608922U (en) * | 2010-01-27 | 2010-10-13 | 无锡赛丰仪表有限公司 | Armoured heating cable |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687110A (en) * | 2013-12-30 | 2014-03-26 | 苏州市东仪自控设备有限公司 | Heat tracing cable |
| CN112588038A (en) * | 2020-11-25 | 2021-04-02 | 沈阳市中色测温仪表材料研究所有限公司 | Prefabricated cold end method |
| CN112588038B (en) * | 2020-11-25 | 2022-05-13 | 沈阳市中色测温仪表材料研究所有限公司 | Prefabricated cold end method |
| CN113271694A (en) * | 2021-04-09 | 2021-08-17 | 黄小来 | Heating cable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100707 |