CN2353444Y - High-temp and high-pressure resistant filler - Google Patents
High-temp and high-pressure resistant filler Download PDFInfo
- Publication number
- CN2353444Y CN2353444Y CN 97231496 CN97231496U CN2353444Y CN 2353444 Y CN2353444 Y CN 2353444Y CN 97231496 CN97231496 CN 97231496 CN 97231496 U CN97231496 U CN 97231496U CN 2353444 Y CN2353444 Y CN 2353444Y
- Authority
- CN
- China
- Prior art keywords
- filler
- line
- high temperature
- temperature resistant
- utility
- 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
Links
Images
Abstract
The utility model relates to a high-temp and high-pressure resistant filler which comprises filler formed by braiding a plurality of filler lines. The utility model is characterized in that the surface of the outside of the circumference of each filler line is provided with a high-temperature resistance lubricating coating which is made of graphite or MuS<2>; the filler lines adopt diaphragm fabric yarns. The utility model adopts coating the circumference on each filler line, and the diaphragm fabric yarns are adopted; the purposes of high-temperature resistance, high-pressure resistance, low cost, and wide applicability are realized.
Description
The utility model belongs to airtight and watertight padding, more precisely to the improvement of the existing filler form of the composition.
At present, having the filler line that the airtight and watertight padding in the valve of high-temperature high-pressure medium (temperature is more than 500 ℃, more than the pressure 10MPa) adopts in petrochemical industry, thermoelectricity etc. is following two kinds: soft graphite line and pyrographite line.The filler of above-mentioned two kinds of filler line knitting formings is existing some defective in varying degrees: 1, above-mentioned two filler lines only are the high-carbon graphite powder to be stained with rubber adhesive at whole filler external surface behind knitting forming, every sub-thread filler line does not then have coating, thereby exist high temperature resistant, high-voltage performance is poor, in temperature more than 500 ℃, under the condition of work more than the pressure 10MPa, after using a period of time, often leak; 2, the goods of soft graphite line have some weakness: (1) allows serviceability temperature and working pressure will be reduced to about 50% of normal value in Oxidant, and service condition is restricted; (2) though in non-oxidative medium when using when reaching 500 ℃ temperature vector up to more than 8%, greatly reduction of service life with cause that compression reduces, thereby leak; (3) this mechanical strength is low, and frangible during filling, tensile strength is little, and stuffing-box is difficult to cleaning during replacing.3, X
s550 (C
u) super heated rubber asbestos copper wire packing is the highest asbestos packing of heatproof in the present asbestos friction material.It is high-carbon graphite to be stained with rubber adhesive at the packing outer surface behind knitting forming by common high temperature 550 asbestos yarns (or the parallel copper wire of asbestos yarn), and to play sealing and lubricated effect, its physical index is as follows:
Density 1.1g/cm
3
Allow pressure medium Pg (max)≤8MPa
Allow medium temperature T (max)≤550 degree
Pyrographite line Applicable media: steam
Heatproof vector (550 degree): 10%
From These parameters as can be seen, the heatproof vector is up to 10% when 550 spend for the rubber asbestos packing, and promptly its linear shrinkage amount of the filler of 10 * 10mm will be shunk 20mm up to the 1mm cross section
2, be total sectional area 100mm
220%.Certainly will cause leakage.And, only be 8MPa because of allowing pressure medium, can not satisfy oil refining and ethylene unit medium power boiler far away, the pyrolysis furnace equitemperature surpasses 500 degree, and pressure is above the air-proof condition at the sealing positions such as valve of 10MPa.Since the seventies, China is successively from external several 300,000 tons of ethylene units of having introduced, and its pyrolysis furnace and power boiler pressure surpass 10MPa, and temperature is above 500 ℃.Under above-mentioned condition of work, still there is not appropriate filler, to satisfy its requirement.Thereby people are expecting that the new solution of the filler of high temperature resistant, high pressure produces as early as possible.
The purpose of this utility model is in order to solve above-mentioned existing problems, a kind of high temperature resistant, high pressure filler to be provided.Its realizes high temperature resistant, high pressure and purpose applied widely and that cost is low.
In order to achieve the above object, the utility model comprises the filler by some strands of filler line knitting formings, it is characterized in that per share or every filler line circumferential outer surface has high temperature resistant lubricant coating, and this coating is graphite or MuS
2, the filler line adopts the diaphragm cloth yarn.
High temperature resistant lubricant coating thickness range 0.05-0.20mm.
In the per share filler line steel wire is arranged.
The utlity model has following advantage and good effect: 1, owing to scribble high temperature resistant lubricating layer on the surface of per share filler line or every filler line, make filler in the time of 600 ℃, still have excellent lubrication, coefficient of friction only is 0.12, abrasion loss only is 0.04 gram, show by test, move back and forth through 500 simulation valve rods and do not produce surface breakdown.And during actual the use, about 1-5 time of annual switch of each valve, promptly this filler can use more than 10 years continuously.2, owing to adopt the special-purpose long fibre of diaphragm cloth and twist closely with the mode of twisting and connect together with nichrome wire that can be high temperature resistant, have advantages of higher tensile strength after making line, the results showed, reach 30.1MP
a, working pressure can reach 18MP
a3, its compression ratio of this filler reaches 28%, rebound degree 27%, the compression rebound rate requirement of giving common packing fully.4, the scope of application is extensive, is water vapour to medium, and various oils, weak acid, weak base etc. are all applicable.5, allow 600 ℃ of maximum operation (service) temperatures, maximum pressure 18MP
a, compare with existing filler and to increase substantially.6, owing to select the diaphragm cloth yarn for use, cost reduces significantly than external filler.
Fig. 1 is a jacket layer braiding finished figure of the present utility model;
Fig. 2 is a punching braiding finished figure of the present utility model;
Fig. 3 is one filler line cross section amplification view of the present utility model.
(1) anti-high lubricant coating; (2) filler line; (3) steel wire; (4) filler.
Referring to Fig. 1, Fig. 2, Fig. 3, filler line (2) adopts fibre length to reach the diaphragm cloth dedicated fiber of 4-10mm, does not add auxiliary cotton and other fibers during spinning, adds steel wire (3) (1cr18Ni9Ti) when three strands of yarns are twisted and plied.Become behind the line with 200 order graphite powders of the wire drawing aquadag+phosphorus content 95% of phosphorus content 19% and (or use MUS
2Fire-resistant lubricants) thick shape body evenly is coated with the high temperature resistant lubricant coating of last layer (1) with the circumference of line, and its thickness is in 0.05-0.2mm.Through the braiding of punching 24 ingot braiders, is the finished product (see figure 2) with this line after the integer.Also available this line forms the finished product (see figure 1) through the jacket layer braiding.
The utility model adopts every or per share filler line circumference coating, and adopts the diaphragm cloth yarn, has realized high temperature resistant, high pressure, the purpose that cost is low, applied widely.
Claims (3)
1, a kind of high temperature resistant, high pressure filler, it comprises the filler (4) by some strands of filler lines (2) knitting forming, it is characterized in that per share or every filler line (2) circumferential outer surface has high temperature resistant lubricant coating (1), this coating (1) is graphite or MuS
2, filler line (2) adopts the diaphragm cloth yarn.
2, high temperature resistant, high pressure filler according to claim 1 is characterized in that described high temperature resistant lubricant coating (1) thickness range 0.05-0.20mm.
3, high temperature resistant, high pressure filler according to claim 1 and 2 is characterized in that per share filler line (2) in-core has steel wire (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97231496 CN2353444Y (en) | 1997-12-25 | 1997-12-25 | High-temp and high-pressure resistant filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97231496 CN2353444Y (en) | 1997-12-25 | 1997-12-25 | High-temp and high-pressure resistant filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2353444Y true CN2353444Y (en) | 1999-12-15 |
Family
ID=33943711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97231496 Expired - Fee Related CN2353444Y (en) | 1997-12-25 | 1997-12-25 | High-temp and high-pressure resistant filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2353444Y (en) |
-
1997
- 1997-12-25 CN CN 97231496 patent/CN2353444Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4705722A (en) | Gland packing | |
| US6020276A (en) | Seal material | |
| US2562262A (en) | Packing | |
| CN102678922B (en) | Fiber packing preparation method | |
| CN102563236B (en) | Hose reinforcing composite rope made of contraposition aromatic polyamide fibers | |
| CN101586719A (en) | High-intensity flexible pipe | |
| CN101307518A (en) | Metal fiber ply yarn and method for making same | |
| CN2353444Y (en) | High-temp and high-pressure resistant filler | |
| CN201554934U (en) | High-temperature and high-pressure resistant filling material | |
| CN104633117A (en) | Preparation method for graphite filling modification PTFE fiber braided packing | |
| JP2003065441A (en) | Packing material and gland packing using this material | |
| CN109234879B (en) | Core-spun yarn applied to sealing material woven packing | |
| CN2861206Y (en) | Novel nylon 6 filament differential-shrinkage air multiple deformation yarn | |
| JP4857151B2 (en) | Gland packing | |
| CN2173251Y (en) | Packing tetrafluorinated line | |
| CN214219011U (en) | Quartz fiber and organic fiber mixed-knitting sewing thread | |
| CN1667303A (en) | Carbon fiber filling sealed and woven base material and its manufacturing method | |
| CN201636456U (en) | Novel high-strength hose | |
| CN207067463U (en) | A kind of double-layer stainless steel silk armouring sensing optic cable | |
| CN2173250Y (en) | Reinforced tetrafluorinated line | |
| CN111073186A (en) | Polytetrafluoroethylene composite material for packing and method for preparing packing by using same | |
| CN215643825U (en) | Fluid cooling's tensile enhancement mode cable for mining machinery | |
| CN218761391U (en) | High-temperature oxidation-resistant flexible graphite packing | |
| CN212338460U (en) | Novel hydraulic oil pipe structure | |
| JP4857186B2 (en) | Method for producing covered yarn |
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 |