CN203115100U - High-temperature-resistant high-pressure-resistant graphite packing - Google Patents
High-temperature-resistant high-pressure-resistant graphite packing Download PDFInfo
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- CN203115100U CN203115100U CN 201320128274 CN201320128274U CN203115100U CN 203115100 U CN203115100 U CN 203115100U CN 201320128274 CN201320128274 CN 201320128274 CN 201320128274 U CN201320128274 U CN 201320128274U CN 203115100 U CN203115100 U CN 203115100U
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- graphite packing
- graphite
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Abstract
The utility model discloses high-temperature-resistant high-pressure-resistant graphite packing and relates to the sealing technology used in the filed of petroleum, in particular to the graphite packing. The high-temperature-resistant high-pressure-resistant graphite packing is a slice-shaped packing coiled material which is composed of a carbon fiber packing layer (1), a flexible graphite packing layer (2) and a metal wire reinforcing graphite packing layer (3) in a stacked mode, wherein the flexible graphite packing layer (2) is located in the middle, the carbon fiber packing layer (1) is arranged on the upper face of the flexible graphite packing layer (2), the metal wire reinforcing graphite packing layer (3) is located on the lower face of the flexible graphite packing layer (2), and the widths of the carbon fiber packing layer (1), the flexible graphite packing layer (2) and the metal wire reinforcing graphite packing layer (3) are identical. The width (M) of the slice-shaped packing coiled material is from 22mm to 33mm. The high-temperature-resistant high-pressure-resistant graphite packing solves the problems that existing graphite packing in the petroleum field is poor in high-temperature resistant capacity and high-pressure resistant capacity, thereby being short in service life.
Description
Technical field
The utility model relates to oil field sealing technique used, is specifically related to a kind of graphite packing.
Background technique
Packing, also named stuffing box packing, usually by more soft thread braiding, formed, and is filled in seal chamber by bar, thereby realizes sealing.Packing seal is in leakage way, to stop liquid to flow leakage with fiber plug such as linen-cottons the earliest, mainly is used as the shaft seal of water lifting machinery.Because fill source is extensive, easy processing, cheap, sealing is reliable, simple to operate, so use till today.Packing is widely used in centrifugal pump, compressor, the vacuum pump of oil field, the rotating shaft sealing of stirrer, and the to-and-fro motion shaft seal of reciprocating pump, reciprocal compressor, refrigerator, and the turn sealing of various valve rods etc.
Packing filling sealing configuration and principle: the customary filler sealing configuration is to be loaded in stuffing box by filler, by Gland, filler is pressed on to the surface of axle.Because the axle total surface is a bit coarse, itself and filler can only be the part laminatings, and not contact of part, this just forms numerous labyrinth.When pressure medium is surperficial by axle, medium, by repeatedly throttling, reaches 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.Good packing seal as can be seen here is the comprehensive of labyrinth effect and bearing effect.
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 produced makes filler be close to the axle surface and stops medium to leak outside simultaneously.
Material as filler should possess following characteristic: certain elastoplasticity is arranged.When being subject 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.
The chemical stability of packing filling sealing, neither by medium institute burn into swelling, also pollution medium not.Medium all has some infiltrations to most of fiber, therefore require filler dense structure, often needs dipping for this reason when making filler, 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; Convenient disassembly; Manufacture simple, cheap.
There is high temperature resistant, high pressure ability in the graphite packing of existing oil field, causes short problem in working life.
Summary of the invention
The utility model provides high temperature high voltage resistant graphite packing, and there is high temperature resistant, high pressure ability in the graphite packing that the utility model has solved existing oil field, causes short problem in working life.
For addressing the above problem, the utility model adopts following technological scheme: high temperature high voltage resistant graphite packing, strengthen graphite plate layer 3 by carbon fiber packing layer 1, flexible graphite stuffing layer 2 and wire and stack the sheet shape packing coiled material formed, in the middle of described flexible graphite stuffing layer 2 is positioned at, carbon fiber packing layer 1 and wire strengthen graphite plate layer 3 and lay respectively at flexible graphite stuffing layer 2 above and below, and it is identical that carbon fiber packing layer 1, flexible graphite stuffing layer 2 and wire strengthen graphite plate layer 3 width; The width of sheet shape packing coiled material is that M is the 22-33 millimeter.
Advantage of the present utility model: high temperature resistant, the high pressure ability is strong, good corrosion resistance, long service life, be particularly suitable for the sealing of the pump, valve, pipeline etc. of oil field.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Symbol description in figure: carbon fiber packing layer 1, flexible graphite stuffing layer 2, wire strengthen graphite plate layer 3.
Embodiment
Below by best embodiment, the utility model is described in detail
.
As shown in Figure 1, high temperature high voltage resistant graphite packing, strengthen graphite plate layer 3 by carbon fiber packing layer 1, flexible graphite stuffing layer 2 and wire and stack the sheet shape packing coiled material formed, in the middle of described flexible graphite stuffing layer 2 is positioned at, carbon fiber packing layer 1 and wire strengthen graphite plate layer 3 and lay respectively at flexible graphite stuffing layer 2 above and below, and it is identical that carbon fiber packing layer 1, flexible graphite stuffing layer 2 and wire strengthen graphite plate layer 3 width; The width of sheet shape packing coiled material is that M is the 22-33 millimeter.
High temperature high voltage resistant graphite packing, the thickness that described carbon fiber packing layer 1, flexible graphite stuffing layer 2 and wire strengthen graphite plate layer 3 is the 0.8-2 millimeter.
The flexible graphite stuffing layer, be the high-carbon graphite by natural squamous, after special chemical and physical treatment, and the pure graphite product that processing and refining forms.It is except the good characteristic that is intactly keeping natural flaky graphite, and main possess the good characteristics such as ductility, rebound elasticity, corrosion-resistant, high pressure resistant, high temperature resistant, radiation hardness, heat conduction.Its material is formed by the braiding of low-sulphur expanded graphite line, and the liner cotton yarn line strengthens.Extremely low friction ractor is arranged, can not wear and tear pump shaft and valve rod, and there is good thermal conductivity, resistance to chemical corrosion and very high rebound elasticity.
Carbon fiber packing layer claims again pre-oxygen wire tray root, is the packing formed by braiding after acrylic fiber pre-oxidation.The carbon fibre packing has good thermal conductivity, wear-resisting and chemical stability, and also relatively cheap in non-asbestos product, be desirable asbestos alternative.
It is to take the high purity graphite scale as raw-material high-quality packing that wire strengthens the graphite plate layer, and each root graphite line is all used wire-reinforced, and wire used is nickel wire, Stainless Steel Wire or copper wire.Strengthening the graphite packing is that main design is applied to high-temperature high pressure valve, the integrated establishment packing of soft selflubricating at sealing position.It is specially adapted to the control valve sealing, and application comprises petroleum chemical industry, the good sealability of all playing stably on steam turbine, high temperature electric valve and general high temperature, high pressure valve.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example clearly is described, and is not the restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all mode of executions.And the apparent variation of being amplified out thus or change are still among protection domain of the present utility model.
Claims (2)
1. high temperature high voltage resistant graphite packing, it is characterized in that, strengthen by carbon fiber packing layer (1), flexible graphite stuffing layer (2) and wire the sheet shape packing coiled material that graphite plate layer (3) stacks formation, in the middle of described flexible graphite stuffing layer (2) is positioned at, carbon fiber packing layer (1) and wire strengthen graphite plate layer (3) and lay respectively at flexible graphite stuffing layer (2) above and below, and it is identical that carbon fiber packing layer (1), flexible graphite stuffing layer (2) and wire strengthen graphite plate layer (3) width; The width of sheet shape packing coiled material is that (M) is the 22-33 millimeter.
2. high temperature high voltage resistant graphite packing as claimed in claim 1, is characterized in that, the thickness that described carbon fiber packing layer (1), flexible graphite stuffing layer (2) and wire strengthen graphite plate layer (3) is the 0.8-2 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128274 CN203115100U (en) | 2013-03-21 | 2013-03-21 | High-temperature-resistant high-pressure-resistant graphite packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128274 CN203115100U (en) | 2013-03-21 | 2013-03-21 | High-temperature-resistant high-pressure-resistant graphite packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115100U true CN203115100U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128274 Expired - Fee Related CN203115100U (en) | 2013-03-21 | 2013-03-21 | High-temperature-resistant high-pressure-resistant graphite packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115100U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972211A (en) * | 2016-06-28 | 2016-09-28 | 东台市华阳玻纤有限责任公司 | Sealing gasket covered with carbon-fiber covering yarn and preparation method of sealing gasket |
| CN107387764A (en) * | 2017-06-28 | 2017-11-24 | 太仓市凯诺石墨密封制品有限公司 | A kind of heat resistant and wear resistant type graphite packing |
| CN110439999A (en) * | 2019-08-15 | 2019-11-12 | 广州安卓机械科技有限公司 | A kind of graphite packing line Wiring technology |
-
2013
- 2013-03-21 CN CN 201320128274 patent/CN203115100U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972211A (en) * | 2016-06-28 | 2016-09-28 | 东台市华阳玻纤有限责任公司 | Sealing gasket covered with carbon-fiber covering yarn and preparation method of sealing gasket |
| CN107387764A (en) * | 2017-06-28 | 2017-11-24 | 太仓市凯诺石墨密封制品有限公司 | A kind of heat resistant and wear resistant type graphite packing |
| CN110439999A (en) * | 2019-08-15 | 2019-11-12 | 广州安卓机械科技有限公司 | A kind of graphite packing line Wiring technology |
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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: 20130807 Termination date: 20150321 |
|
| EXPY | Termination of patent right or utility model |