CN2282724Y - Sheathed chemical-resisting cable - Google Patents
Sheathed chemical-resisting cable Download PDFInfo
- Publication number
- CN2282724Y CN2282724Y CN 96243212 CN96243212U CN2282724Y CN 2282724 Y CN2282724 Y CN 2282724Y CN 96243212 CN96243212 CN 96243212 CN 96243212 U CN96243212 U CN 96243212U CN 2282724 Y CN2282724 Y CN 2282724Y
- Authority
- CN
- China
- Prior art keywords
- shielding
- cable
- chemical
- screen
- plastic
- 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 sheathed chemical-resisting cable. Shielding layers are lengthways coated outside of cable wire cores. Current guiding wires are arranged among the shielding layers. The shielding chemical-resisting cable is characterized in that both faces of the shielding layer are coated with metal belts; the outside of the shielding layer is extruded and coated with a plastic sheath; the lapping portions of the shielding layers are sealed and glued. The chemical-reagent performance and the chemical permeability suppression of the cable are only lower than those of cables with a metallic sheath; the cost and the use method is similar to those of general cables with a plastic sheath.
Description
The utility model relates to a kind of shielding and chemical resistant cable.
Be laid in cable in oil plant, petrochemical plant and the vague generalization factory touches various chemicals, oil, solvent through regular meeting.Thereby when cable cover(ing) is general organic material, will produce aging phenomena such as swelling, sclerosis, be full of cracks, dissolving, sometimes in addition cause the insulation ruined accident.
In order to prevent the chemical aging of cable, though can use Polyethylene insulated cable (crosslinked polyetylene insulated polythene jacket cable), but the polyethylene that chemical resistance is outstanding also will expand in time more than 60 ℃ for aromatic series series solvents such as benzene,toluene,xylenes, even dissolving soon.,, have to for this reason, as use plumbous cover, wrinkle metallic sheath cable etc. based on metal sheathed cable as the cable that anti-aromatic series is used.
But, this metallic sheath (mainly be plumbous cover) cable, price general charged is expensive, Heavy Weight, operating expenses height, is only limited at present on important circuit and uses.
The purpose of this utility model is to design a kind of cable that has shielding and chemical-resistant resistance function novel the time at the problems referred to above, this cable resistance to chemical reagents and inhibition medicine permeability are only second to metallic sheath, and price is similar with general plastic jacketed cable with using method.
The purpose of this utility model is realized by the following technical programs.
At the outside that becomes cable core vertical bag one deck screen, establish the tinned copper wire drainage thread between screen, the screen outside extrudes plastic sheath again.Screen is the metal tape of two-sided plastic-coated, and the sealing of the screen place of putting up is bonding.
Metal tape in the screen is aluminium strip or copper strips.Two coatings of metal tape be high density polyethylene (HDPE).
Plastic sheath also is a high density polyethylene (HDPE).
The heat that produces when extruding plastic sheath makes the plastic film on the screen and sheath is melting adhered is integral, and realizes that also the screen place of putting up bonds together simultaneously.
Technical characterstic of the present utility model and result of use:
1, anti-preferably aromatic solvent is arranged, oil resistant, resistance to chemical reagents are covered sulfuration, water-fast tree property, anti-ant property, withstand voltage, resistance to impact.Suppress infiltrative effect in theory and be no metal tape 1000 times.
2, little, in light weight, the good bandability of the outside diameter of cable.
3, cable inner shield metal level is because the job contract skill is indulged in employing, so its shielding rejection coefficient is littler by 80% than the cable of around-packing technology.
4, because interior shielding layer is furnished with tinned copper wire as drainage thread, therefore, cable grounding is handled and just is easy to carry out.
Below in conjunction with accompanying drawing the utility model is done further narration:
Accompanying drawing 1 is a transverse sectional view of the present utility model.
1 is conductor among the figure, the 2nd, and insulating barrier, the 3rd, inserts, the 4th, band, the 5th, drainage thread, the 6th, screen, the 7th, sheath, the 8th, put up.
Accompanying drawing 2 is structural representations of screen:
9 is plastic films among the figure, the 10th, and metal tape.
As shown in the figure, the shielding layer 6 vertical outsides that wrap in band 4 are provided with the tinned copper wire drainage thread in the middle of the shielding layer 6, and sheath 7 encases screen 6.Screen 6 is to be formed by the vertical bag of composite material that metal tape 10 two sides are coated with plastic film 9.Sheath 7 and plastic film 8 all are high density polyethylene (HDPE)s.It is all melting adhered in one that the heat that produces when extruding sheath 7 is put up 8 places with sheath 7 and plastic film 9 and screen.Such cable obviously has very strong anti-medicine permeability and chemical proofing.
Claims (4)
1, a kind of shielding and chemical resistant cable becoming cable core outside vertical bag screen, are established drainage thread between screen, it is characterized in that shielding layer is two-sided plastic-coated metal tape, and the outside of screen extrudes plastic sheath again, and the place's of putting up sealing of screen is bonding.
2, a kind of shielding according to claim 1 and chemical resistant cable is characterized in that metal tape is aluminium strip or copper strips.
3, a kind of shielding and the chemical resistant cable of narrating according to claim 1, what it is characterized in that applying on the two-sided plastic-coated metal tape is high density polyethylene (HDPE), plastic sheath is a high density polyethylene (HDPE).
4, a kind of shielding and the chemical resistant cable of narrating according to claim 1 is characterized in that plastic sheath and two-sided plastic-coated metal tape are bonded to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96243212 CN2282724Y (en) | 1996-11-22 | 1996-11-22 | Sheathed chemical-resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96243212 CN2282724Y (en) | 1996-11-22 | 1996-11-22 | Sheathed chemical-resisting cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2282724Y true CN2282724Y (en) | 1998-05-27 |
Family
ID=33916911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96243212 Expired - Fee Related CN2282724Y (en) | 1996-11-22 | 1996-11-22 | Sheathed chemical-resisting cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2282724Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7790981B2 (en) | 2004-09-10 | 2010-09-07 | Amphenol Corporation | Shielded parallel cable |
-
1996
- 1996-11-22 CN CN 96243212 patent/CN2282724Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7790981B2 (en) | 2004-09-10 | 2010-09-07 | Amphenol Corporation | Shielded parallel cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |