CN201708950U - Three-core electric heating cable for pipe penetration - Google Patents
Three-core electric heating cable for pipe penetration Download PDFInfo
- Publication number
- CN201708950U CN201708950U CN2010201628744U CN201020162874U CN201708950U CN 201708950 U CN201708950 U CN 201708950U CN 2010201628744 U CN2010201628744 U CN 2010201628744U CN 201020162874 U CN201020162874 U CN 201020162874U CN 201708950 U CN201708950 U CN 201708950U
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- CN
- China
- Prior art keywords
- electric heating
- pipe penetration
- core electric
- heating cable
- insulating 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a three-core electric heating cable for pipe penetration, which is mainly used for superficial pipe penetration and laying of pipe in petrochemical industry, fire protection, steel, electric power and the like and also suitable for storage tank, floor heating of civil architecture and melted snow. The electric heating cable comprises seven layers of three core wires (1), a first insulating layer (2), a second insulating layer (3), a packing layer (4), an inner protective jacket (5), a shielding layer (6) and an outer protective jacket (7) that are sequentially compounded from inside to outside. The three-core electric heating cable for pipe penetration can greatly lessen traction resistance and reduce risk of the cable insulating layer to be damaged during pipe penetration.
Description
(1) technical field
The utility model relates to a kind of ribbon heater.The poling that is mainly used in the pipe surface of petrochemical industry, fire-fighting, iron and steel, electric power etc. is laid, and the ground that also is applicable to storage tank, the civil buildings snow melt poling that warms up is used etc.Belong to the electrothermal device technical field.
(2) background technology
The ribbon heater needs highway crossing and bridge tunnel or buried pipeline in work progress, and the old pipeline of user reuse need be with the three-core electric heating tape poling when transforming.Perforated tube three-core electric heating tape is to pipeline or thereby container provides heat compensation to reach to pipeline or container inner medium is incubated or the purpose of heating.
Poling ribbon heater structural principle:
The ribbon heater is drawn into pre-buried protection pipeline by iron wire or drawn the waste and old steam tracing pipeline section that advances to need to be accompanied on the hot old process pipe; ribbon heater heated protective pipeline at first like this, then by protection tube to and reached insulation and heating purposes by the heat exchange of heat tracing pipe road.Can solve construction cost and progress problem preferably like this.
The external form cross section structure of conventional three-core electric heating tape is a flat, and promptly three heart yearns are arranged in parallel in a plane.Therefore the ribbon heater is pierced in the protection tube at quilt and usually can be caused damage in insulation owing to protection poling right-angled bend or owing to internal diameter of the pipeline is big inadequately in the distraction procedure.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of perforated tube three-core electric heating tape that can significantly reduce the poling tractive resistance is provided.
The purpose of this utility model is achieved in that a kind of perforated tube three-core electric heating tape, described ribbon heater from interior from outside successively by heart yearn, first insulating barrier, second insulating barrier, packing layer, inner sheath, screen and oversheath totally seven layers be composited, described heart yearn has three.
Poling three-core electric heating tape structural principle:
Cross section, ribbon heater through the improvement structure is a sub-circular; the ribbon heater is drawn into pre-buried protection pipeline by iron wire or drawn the waste and old steam tracing pipeline section that advances to need to be accompanied on the hot old process pipe; ribbon heater heated protective pipeline at first like this, then by protection tube to and reached insulation and heating purposes by the heat exchange of heat tracing pipe road.Can solve construction cost and progress problem preferably like this.
The beneficial effects of the utility model are:
The utility model perforated tube three-core electric heating tape cross section structure is a sub-circular, is about to three heart yearns by Chinese character pin-shaped arrangement, forms by extrusion molding after adding cable filler and twisted wire.The round cable poling can significantly reduce tractive resistance, has reduced the ruined risk of cable insulation in the poling process.
(4) description of drawings
Fig. 1 is perforated tube three-core electric heating tape Facad structure schematic diagram in the past.
Fig. 2 is the A-A cut-away view of Fig. 1.
Fig. 3 is the utility model perforated tube three-core electric heating tape Facad structure schematic diagram.
Fig. 4 is the B-B cut-away view of Fig. 3.
Reference numeral among the figure:
Heart yearn 1, first insulating barrier 2, second insulating barrier 3, packing layer 4, inner sheath 5, screen 6, oversheath 7.
(5) embodiment
Referring to Fig. 3～5, Fig. 3 is the utility model perforated tube three-core electric heating tape Facad structure schematic diagram.Fig. 5 is the B-B cut-away view of Fig. 3.By Fig. 3 and Fig. 5 as can be seen, the utility model perforated tube three-core electric heating tape, from interior from outside successively by heart yearn 1, first insulating barrier 2, second insulating barrier 3, packing layer 4, inner sheath 5, screen 6 and oversheath 7 totally seven layers be composited.Described heart yearn 1 has three.
Claims (1)
1. perforated tube three-core electric heating tape, it is characterized in that described ribbon heater from interior from outside successively by heart yearn (1), first insulating barrier (2), second insulating barrier (3), packing layer (4), inner sheath (5), screen (6) and oversheath (7) totally seven layers be composited, described heart yearn (1) has three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201628744U CN201708950U (en) | 2010-04-09 | 2010-04-09 | Three-core electric heating cable for pipe penetration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201628744U CN201708950U (en) | 2010-04-09 | 2010-04-09 | Three-core electric heating cable for pipe penetration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708950U true CN201708950U (en) | 2011-01-12 |
Family
ID=43446100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201628744U Expired - Fee Related CN201708950U (en) | 2010-04-09 | 2010-04-09 | Three-core electric heating cable for pipe penetration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201708950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860994A (en) * | 2010-04-09 | 2010-10-13 | 江阴市华能电热器材有限公司 | Perforated tube three-core electric heating tape |
-
2010
- 2010-04-09 CN CN2010201628744U patent/CN201708950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860994A (en) * | 2010-04-09 | 2010-10-13 | 江阴市华能电热器材有限公司 | Perforated tube three-core electric heating tape |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20150409 |
|
| EXPY | Termination of patent right or utility model |