CN203297626U - Carbon fiber packing - Google Patents
Carbon fiber packing Download PDFInfo
- Publication number
- CN203297626U CN203297626U CN2013203168645U CN201320316864U CN203297626U CN 203297626 U CN203297626 U CN 203297626U CN 2013203168645 U CN2013203168645 U CN 2013203168645U CN 201320316864 U CN201320316864 U CN 201320316864U CN 203297626 U CN203297626 U CN 203297626U
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- packing
- carbon fiber
- inner core
- core wire
- wires
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Abstract
The utility model relates to carbon fiber packing which comprises a stripe-shaped body. The stripe-shaped body is formed by a plurality of weaving wires which are woven. The carbon fiber packing is characterized in that each weaving wire comprises an inner core wire harness formed by a plurality of carbon fiber wires and a Teflon film wrapping the inner core wire harness. The inner core wire harnesses of the weaving wires of the carbon fiber packing body are formed by a plurality of carbon fiber wires which are extruded, and then the inner core wire harnesses are wrapped by the Teflon films with stable chemical performance and good heat conduction performance. Thus, the strength of the packing is greatly enhanced, equipment shafts are prevented from being abraded, and the service life of the packing is prolonged. Meanwhile, the temperature resistance of the packing is effectively improved, the carbon fiber packing is suitable for environments with acid, alkali and organic solvents, and the whole performance is greatly improved.
Description
Technical field
The utility model relates to a kind of carbon fibre packing.
Background technique
Packing is a kind ofly by the braiding of more soft thread, to be formed, and sectional area is square or rectangular or circular bar, as stuffing box packing, is filled in seal chamber, thereby realizes sealing.Stuffing box packing the earliest with the plug of fibrous material such as linen-cotton in leakage be used to stoping liquid to be revealed, mainly as the shaft seal of axis body water lifting machinery.Because fill source is extensive, easy processing is cheap, and sealing is reliable, and is simple to operate, so use till today.Packing is widely used in rotating shaft sealing, reciprocating pump, the reciprocal compressor of centrifugal pump, compressor, vacuum pump, stirrer and propeller for vessels, the to-and-fro motion shaft seal of refrigerator as a kind of important stuffing box packing, and the turn sealing of various valve rods etc.
Packing seal is loaded in stuffing box by filler, by Gland, filler is pressed on to the surface of axle.Some is coarse because the axle total surface is understood, and itself and filler can only be the part laminatings, and therefore not contact of part can form numerous labyrinth.When pressure medium was surperficial by axle, medium, by repeatedly throttling, reached sealing by means of this " labyrinth effect ".The laminating on filler and axle surface, friction, also similar sliding bearing, admittedly should there be enough liquid to be lubricated, be sealed with certain life-span, i.e. so-called " bearing effect " with assurance.Filler produces by tightening gland bolt the impacting force of axle.Because filler is elastic plastic body, after being subject to axial compression, producing frictional force and cause impacting force to reduce gradually vertically, the radial compaction power that produces simultaneously makes filler be close to the axle surface and stops medium to leak outside.The distribution of radial compaction power to the inner, became mild by outer end (gland) after sharply successively decreasing before this, the distribution of pressure medium is successively decreased gradually outward by the inner, when the outer end pressure medium is zero, leaked seldom.
Material as filler should possess following characteristic: certain elastoplasticity is arranged, when being subjected to axial compression, filler can produce larger radial compaction power, to obtain sealing, when machine and axle have vibration or axle to have to beat and be eccentric, certain compensation ability (tracing ability) can be arranged; Chemical stability, neither by medium institute burn into swelling, also pollution medium not; Impermeability, medium all has some infiltrations to most of fiber, therefore require filler dense structure, when making filler, often needs dipping for this reason, fills various oiling agents and bulking agent; Self lubricity is good, and friction factor is little and wear-resisting; Temperature tolerance, can bear certain temperature after frictional heating.
The carbon fibre packing claims again pre-oxygen wire tray root, is by after acrylic fiber pre-oxidation, working out, the packing that surface adopts ptfe emulsion and lubricated to form.The carbon fibre packing has good thermal conductivity, anti-wear agent chemical stability, and relatively cheap in non-asbestos product, is desirable asbestos alternative.It is widely used in the sealing of valve, pump, flange, stirrer, malaxation device, stern oar axle, is applicable to weak acid, alkali, salt, and the media environment of organic solvent, seawater, factory sewage, Dormant oils, be widely used.But relatively thin be used to working out the acrylic fiber line that packing uses in the carbon fibre packing of present extensive use, intensity relatively a little less than, in addition, ptfe emulsion and lubricated have just been adopted in its surface, the heat transfer area less, rub proofness is inadequate, and service time is also relatively short.And the braided wire that common tetrafluoro packing adopts is tetrafluorinated line, its intensity a little less than, heatproof is not high.
The model utility content
Technical problem to be solved in the utility model is that the carbon fibre packing of a kind of high strength, heatproof is provided for above-mentioned prior art.
The utility model solves the problems of the technologies described above the technological scheme that adopts: this carbon fibre packing, comprise the strip body that is formed by many braids, it is characterized in that: every braided wire includes the inner core wire harness that many carbon fibre lines form, and is wrapped in the outer polytetrafluoroethylene film of inner core wire harness.
Preferably, to be square or rectangular circular or oval in the cross section of described strip body.
Compared with prior art, the utility model has the advantage of: the inner core wire harness of the braided wire of this carbon fibre packing body consists of many carbon fibre line extruding, the inner core wire harness wraps up chemical stabilization outward again, has the polytetrafluoroethylene film of good heat-conductive characteristic, not only greatly strengthened the intensity of packing, also can the wear equipment axle, increased the working life of packing; Effectively raise simultaneously the heat resistance of packing, be applicable to contain the environment of acid, alkali, organic solvent.Advantage has separately been given full play in the combination of carbon fibre wire harness and polytetrafluoroethylene film, and the organization plan of taking in the utility model also allows the large degree of overall performance of packing improve.
The accompanying drawing explanation
Fig. 1 is the establishment line sectional view that in the utility model embodiment, establishment carbon fibre packing is used.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Carbon fibre packing in the present embodiment, comprise by many braids, formed, sectional area is foursquare strip body, wherein, every braided wire includes the inner core wire harness 1 that closely is squeezed into by many carbon fibre lines, with the polytetrafluoroethylene film 2 that is wrapped in outside the inner core wire harness, shown in Figure 1.
Claims (2)
1. a carbon fibre packing, comprise the strip body that is formed by many braids, it is characterized in that: every braided wire includes the inner core wire harness that many carbon fibre lines form, and is wrapped in the outer polytetrafluoroethylene film of inner core wire harness.
2. carbon fibre packing according to claim 1, it is characterized in that: it is circular or oval that the cross section of described strip body is square or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203168645U CN203297626U (en) | 2013-06-04 | 2013-06-04 | Carbon fiber packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203168645U CN203297626U (en) | 2013-06-04 | 2013-06-04 | Carbon fiber packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297626U true CN203297626U (en) | 2013-11-20 |
Family
ID=49573634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203168645U Expired - Fee Related CN203297626U (en) | 2013-06-04 | 2013-06-04 | Carbon fiber packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080002A (en) * | 2019-05-28 | 2019-08-02 | 江苏先诺新材料科技有限公司 | A kind of high temperature resistant rub resistance type polyimides packing and preparation method thereof |
-
2013
- 2013-06-04 CN CN2013203168645U patent/CN203297626U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080002A (en) * | 2019-05-28 | 2019-08-02 | 江苏先诺新材料科技有限公司 | A kind of high temperature resistant rub resistance type polyimides packing and preparation method thereof |
| CN110080002B (en) * | 2019-05-28 | 2021-11-05 | 江苏先诺新材料科技有限公司 | High-temperature-resistant and friction-resistant polyimide packing and preparation method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20190604 |