CN101207947A - High temperature mineral insulation heating cable - Google Patents
High temperature mineral insulation heating cable Download PDFInfo
- Publication number
- CN101207947A CN101207947A CNA2007101589371A CN200710158937A CN101207947A CN 101207947 A CN101207947 A CN 101207947A CN A2007101589371 A CNA2007101589371 A CN A2007101589371A CN 200710158937 A CN200710158937 A CN 200710158937A CN 101207947 A CN101207947 A CN 101207947A
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- Prior art keywords
- high temperature
- insulating material
- insulation material
- heating cable
- heat generating
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- 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.)
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Abstract
The invention relates to a high temperature mineral insulation heating cable, which comprises a protection sleeve pipe, an insulation material and a heating core, wherein, the heating core is inserted into the protection sleeve pip which is filled with the insulation material. The invention is characterized in that the protection sleeve pipe is a high temperature alloy pipe of heat resistance, the insulation material is made of high purity magnesia, and the heating core is made of nickel chromium 20 alloys. Through adopting pressure processing method, the high temperature alloy pipe, the insulation material and the heating core are processed into integration, and the highest working temperature is from 1000 DCG to 1100 DCG. The invention adopts stretching method to manufacture an armoured thermocouple with different diameters. A measuring end is thick, can endure high temperature, and has long service life. A leading out end is thin, can be installed in small space, can reduce service weight, and is in particular suitable for an aircraft.
Description
Technical field
The present invention relates to a kind of heating cable, particularly relate to a kind of high temperature mineral insulation heating cable, is to the improvement of existing heating cable structure, belongs to the heating cable manufacturing technology.
Background technology
At present, the heating cable of domestic production has two big classes: a class is to adopt the heating cable of polyester film lapped insulation, allows working temperature to be no more than 120 ℃ for a long time; In addition～and class is to adopt common stainless steel tube or copper pipe as outer protection tube, and the inside is mineral-filled with magnesium oxide etc., wherein is fixed with heat generating core, and its maximum heating temperature is 500～600 ℃.Publication number is that the Chinese utility model patent of CN2362253 has provided " a kind of mineral insulation heating cable ", the solid heart yearn that its employing manganese-copper or nickel chromium triangle material are made is as the heating core body, the insulating barrier that uniform ring constitutes around the mineral insulating material that is distributing closely knit around the heating core body, insulating barrier is with outward as the stainless steel tube of metallic sheath or White Copper Tubes, and its maximum heating temperature is also about 500 ℃.In a word, finding as yet on the market can be in high temperature (600～1100 ℃), oxidizing atmosphere and under the exhaust gas corrosion condition, and the heating cable that bears big stress and be long-term used in the heating place of high temperature specific (special) requirements occurs.
Summary of the invention
Purpose of the present invention just is to overcome the prior art above shortcomings, improve by research, provide a kind of high temperature mineral insulation heating cable, this high temperature mineral insulation heating cable has the advantages that intensity height, non-oxidizability and corrosion resistance are good, can bear big stress and long service life in high temperature (600～1100 ℃) oxidizing atmosphere and under the exhaust gas corrosion condition, the heating place that can be used for 1000 ℃ of temperature, do not need to carry out insulation processing, can reduce the heating volume, increase the heat efficiency, help energy-conserving and environment-protective.
The technical solution that the present invention provides is: this high temperature mineral insulation heating cable; include protective casing, insulating material and heat generating core; wherein heat generating core inserts in the protective casing; be filled with insulating material in the protective casing; be characterized in that described protective casing is resistant to elevated temperatures high temperature alloy pipes; described insulating material is a high-purity magnesium oxide; described heat generating core is nickel chromium triangle 20 alloys; and adopting the pressure processing mode that high temperature alloy pipes, insulating material and heat generating core are processed into one, its maximum operating temperature is 1000～1100 ℃.
The model of described resistant to elevated temperatures high temperature alloy pipes is preferably GH3030 in the present invention, also can select GH3039 and other high temperature alloy certainly for use.
Described in the present invention insulating material is preferably high-purity magnesium oxide, and its principal component is 99.99%, also can select aluminium oxide and other high temperature insulating material certainly for use.
Described in the present invention heat generating core is preferably nickel chromium triangle 20 alloys, also can select other heating core certainly for use.
Compared with prior art, beneficial effect of the present invention is: have the advantages that intensity height, non-oxidizability and corrosion resistance are good, can bear big stress and long service life in high temperature (600～1100 ℃) oxidizing atmosphere and under the exhaust gas corrosion condition, the heating place that can be used for 1000 ℃ of temperature, do not need to carry out insulation processing, can reduce the heating volume, increase the heat efficiency, help energy-conserving and environment-protective.
Description of drawings
Accompanying drawing is the structural representation of the embodiment that provides of the present invention.
Embodiment
Below in conjunction with embodiment concrete technical scheme of the present invention is described further:
As shown in the figure; this high temperature mineral insulation heating cable; include protective casing 1, insulating material 2 and heat generating core 3; wherein heat generating core 3 inserts in the protective casing 1; be filled with insulating material 2 in the protective casing 1; described protective casing 1 is resistant to elevated temperatures high temperature alloy pipes GH3030; described insulating material 2 is a high-purity magnesium oxide; described heat generating core 3 is nickel chromium triangle 20 alloys; and adopting the pressure processing mode that high temperature alloy pipes, insulating material and heat generating core are processed into one, its maximum operating temperature is 1000～1100 ℃.
The present invention have intensity height, non-oxidizability and corrosion resistance good, can be at high temperature (600～1100 ℃) bear the characteristics of big stress and long service life in the oxidizing atmosphere and under the exhaust gas corrosion condition, available Heating place in 1000 ℃ of temperature.
Claims (1)
1. high temperature mineral insulation heating cable; include protective casing, insulating material and heat generating core; wherein heat generating core inserts in the protective casing; be filled with insulating material in the protective casing; it is characterized in that described protective casing is resistant to elevated temperatures high temperature alloy pipes, described insulating material is a high-purity magnesium oxide, and described heat generating core is nickel chromium triangle 20 alloys; and adopting the pressure processing mode that high temperature alloy pipes, insulating material and heat generating core are processed into one, its maximum operating temperature is 1000～1100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101589371A CN101207947A (en) | 2007-12-14 | 2007-12-14 | High temperature mineral insulation heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101589371A CN101207947A (en) | 2007-12-14 | 2007-12-14 | High temperature mineral insulation heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101207947A true CN101207947A (en) | 2008-06-25 |
Family
ID=39567724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101589371A Pending CN101207947A (en) | 2007-12-14 | 2007-12-14 | High temperature mineral insulation heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101207947A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101742745B (en) * | 2008-11-14 | 2012-02-29 | 沈阳市中色测温仪表材料研究所有限公司 | Joint for mineral insulation heating cable |
| CN103953946A (en) * | 2014-04-23 | 2014-07-30 | 久盛电气股份有限公司 | Hydrogen igniter for nuclear power |
| CN109059042A (en) * | 2018-06-27 | 2018-12-21 | 中国石油天然气股份有限公司 | Electric ignition device |
-
2007
- 2007-12-14 CN CNA2007101589371A patent/CN101207947A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101742745B (en) * | 2008-11-14 | 2012-02-29 | 沈阳市中色测温仪表材料研究所有限公司 | Joint for mineral insulation heating cable |
| CN103953946A (en) * | 2014-04-23 | 2014-07-30 | 久盛电气股份有限公司 | Hydrogen igniter for nuclear power |
| CN109059042A (en) * | 2018-06-27 | 2018-12-21 | 中国石油天然气股份有限公司 | Electric ignition device |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080625 |