CN101649902A - Polyether-ether-ketone (PEEK) combined seal ring - Google Patents
Polyether-ether-ketone (PEEK) combined seal ring Download PDFInfo
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- CN101649902A CN101649902A CN200910187306A CN200910187306A CN101649902A CN 101649902 A CN101649902 A CN 101649902A CN 200910187306 A CN200910187306 A CN 200910187306A CN 200910187306 A CN200910187306 A CN 200910187306A CN 101649902 A CN101649902 A CN 101649902A
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Abstract
The invention relates to a polyether-ether-ketone (PEEK) combined seal ring. The combined seal ring comprises a compression ring, a seal ring and a support ring, wherein the section of the seal ring is in a V shape; the upper side of the seal ring is provided with the compression ring, and the lower side of the seal ring is provided with the support ring; the compression ring of the combined sealring is provided with a V-shaped protrusion and can be embedded into the upper side of the seal ring; and the support ring is provided with a V-shaped pit so that the lower side of the seal ring can be embedded into the support ring. The combined seal ring adopts PEEK as a main raw material, is mainly used for the equipment of metallurgy, mine, petroleum extraction to play a role of seal and has the characteristics of high temperature resistance, high-voltage resistance, corrosion resistance, abrasion resistance, and the like.
Description
Technical field
The present invention relates to a kind of seal ring, particularly a kind of V-type combined seal ring of polyetheretherketonematerials materials.
Background technique
Polyether-ether-ketone (PEEK) is high-effect polymer, possesses particular feature, and the ideal that becomes the most overcritical application of today and future is selected.As metal, synthetic, with the alternative of other polymer, polyether-ether-ketone becomes solution on the engineering because of its remarkable combinations of attributes.Polyether-ether-ketone has multiple good characteristic such as heat-resisting quantity, wear resistance, chemical resistance, hydrolytic resistance, insulating properties, excellent intensity and toughness, stability, fire prevention and performance such as nontoxic.
V-shaped seal ring is a kind of lip-type seal circle, is to use and uses one of maximum moulding filler the earliest.It is mainly used in to-and-fro motion, does the sealing of piston or piston rod.Different with general rotary oil seal, V-shaped seal ring relies on its flexible sealing lip to form the axial seal effect.But along with industrial expansion, in the past all can not to satisfy 200 ℃ of high temperature, high pressure 100MPa, medium be to use under the very strong operating mode of mud or other pH value for the V-type rubber that adopts, canvas filler rubber, polyurethane, teflon etc.
Summary of the invention
The deficiency that purpose of the present invention can not be used in high temperature, high pressure and other particular surroundings at domestic existing V-shaped seal ring, provide a kind of high temperature resistant, high pressure resistant, corrosion-resistant, wear-resistant, the V-type combined seal ring of easy processing, the sealing circle is a kind of very firm Sealing, strong to various operating mode adaptive capacitys, be particularly useful for using under the drilling-production equipment inclined shaft.
V-type combined seal ring of the present invention, with the main material of polyether-ether-ketone (PEEK) as seal ring, machining is made after employing injection moulding straight forming or the compression molding, and production technology is simple, the manufacturing efficiency height.
The present invention realizes by the following method:
This combined seal ring is made up of seal ring, pressure ring, support ring three parts, wherein the seal ring cross section is V-shaped, at the seal ring upside pressure ring is arranged, the seal ring downside has a support ring, this combined seal ring is a main material with polyether-ether-ketone (PEEK), utilize polytetrafluoroethylene (PTFE) to improve its elasticity, machining is made after employing injection moulding straight forming or the compression molding.
The combined seal ring pressure ring has the V-type projection, can embed in the seal ring upside, and support ring has the V-type depression that the seal ring downside can be embedded in the support ring.The effect of pressure ring is to transfer the pressure to V-shaped seal ring, makes the V-type ring be close to both sides.The effect of support ring is to release the pressure, and strengthens the anti-extrusion ability of combined seal ring.
The quantity of seal ring is 1-10.
The use that this combined seal ring seals on metallurgy, mine, oil drilling and extracting equipment.
Because polyether-ether-ketone itself is high temperature resistant, high pressure resistant, wear-resistant, corrosion-resistant, improved elasticity behind the interpolation teflon, increased self-lubricating property, technology capability is good, is applicable under the rugged environment such as metallurgy, mine, petroleum drilling and mining to use.Using process is especially more than 200 ℃, favorable sealing property among the 100MPa,
In deep-well, the situation that temperature exists the chemical substance of hydrogen, methane, carbon dioxide, sulfur-bearing and water vapour up to time more than 200 ℃ is very general, and hydrodynamic pressure can surpass 138MPa in drilling fluid.Because the PEEK resin has high temperature resistantly, the PEEK resin has high glass transition (143 ℃) and fusing point (334 ℃), and this is one of reason that it can reliable application in the purposes that has heat resistance to require, and serviceability temperature is 260 ℃ continuously, hydrolysis resistance.This material is not subjected to the chemical affect of water and high-pressure steam, shock-resistant pressure and vibration pressure, and long service life has reduced on-the-spot installation and has changed the trouble that seal ring brings.
General material is not because temperature reaches requirement, can only lean on the quantity of V-shaped seal ring, generally every about 3 hours, just need lock nut to increase sealing, when nut is gone to the limit, just need all to change, be no more than 100 hours working life according to the general every group of seal ring of the temperature of different oil wells and medium.The V-shaped seal ring that uses PEEK to make uses under high-temperature oil well, generally just needs lock nut to increase sealing about 50 hours, and whole service life generally can be with 5 mouthfuls of wells, and the total ascent time is 3600 hours.
Description of drawings
The pressure ring structural representation of Fig. 1 combined seal ring;
The support ring structural representation of Fig. 2 combined seal ring;
The ring structure schematic representation of Fig. 3 combined seal ring
The enforcement illustration of Fig. 4 combined seal ring.
Embodiment
Embodiment 1
With the compression molding is example, take by weighing polyether-ether-ketone powder 425 grams earlier, take by weighing teflon 75 grams again, coupling agent 0.5 gram, thinner 10ml, be positioned in the homogenizer, high-speed stirred 15 minutes, the raw material that takes out after stirring is positioned in the ready prepd mould, is pressurized to 10MPa on 100 tons press, pressurize 1 minute, be positioned in 390 ℃ the sintering furnace sintering then 4 hours, take out the back and on 100 tons press, be pressurized to 5MPa, pressurize 15 minutes, direct demold had both obtained the semifinished material of seal ring after the pressurize, at last according to Fig. 1,2,3 are processed into pressure ring, support ring, seal ring is some, makes up 1 of pressure ring according to Fig. 4,1 of support ring, 1 of seal ring can obtain combined seal ring.
Embodiment 2
Polyether-ether-ketone powder 1.2Kg at first, take by weighing teflon 0.212Kg again, coupling agent 1.5 grams, thinner 30ml is positioned in the homogenizer and stirred 15 minutes, the raw material that takes out after stirring is positioned in the ready prepd mould, be pressurized to 20MPa on 350 tons press, pressurize 3 minutes places 380 ℃ sintering furnace to heat 8 hours on mould, take out mould and on 350 tons press, be pressurized to 10MPa, cooled off 40 minutes, the demoulding just obtains the semifinished material of seal ring.At last according to Fig. 1,2,3 to be processed into pressure ring, support ring, seal ring some, make up 1 of pressure ring, 1 of support ring, 6 of seal rings according to Fig. 4 and can obtain combined seal ring.
Embodiment 3
Take by weighing polyether-ether-ketone pellet 8.5Kg earlier, take by weighing teflon 1.5Kg again, coupling agent 10g, add slenderness ratio simultaneously and be in 65 the double screw extruder, the temperature of double screw extruder is respectively: 365 ℃, 365 ℃, 370 ℃, 385 ℃, 385 ℃, 380 ℃, smoked 4 hours in 150 ℃ of baking ovens behind the extruding pelletization so that injection moulding is used.The injection mould ￠ 50*35*5 (mould two districts) that prepare to use is installed on 100 tons the injection machine, temperature is raised to 365 ℃, 365 ℃, 370 ℃, 385 ℃, 385 ℃, 380 ℃ respectively, the raw material of smoking on automatic then, adjust mould clamping force and cool time, inject product, just obtain the semifinished material of seal ring.At last according to Fig. 1,2,3 to be processed into pressure ring, support ring, seal ring some, make up 1 of pressure ring, 1 of support ring, 10 of seal rings according to Fig. 4 and can obtain combined seal ring.
Claims (4)
1, a kind of polyether-ether-ketone (PEEK) combined seal ring, be characterised in that this combined seal ring is made up of seal ring, pressure ring, support ring three parts, wherein the seal ring cross section is V-shaped, wherein the seal ring cross section is V-shaped, at the seal ring upside pressure ring is arranged, the seal ring downside has a support ring, and this combined seal ring is a main material with polyether-ether-ketone (PEEK), utilize polytetrafluoroethylene (PTFE) to improve its elasticity, machining is made after employing injection moulding straight forming or the compression molding.
2, a kind of polyether-ether-ketone (PEEK) combined seal ring as claimed in claim 1 is characterized in that described pressure ring has the V-type projection, can embed in the seal ring upside, and support ring has the V-type depression that the seal ring downside can be embedded in the support ring.
3, a kind of polyether-ether-ketone (PEEK) combined seal ring as claimed in claim 1, the quantity that it is characterized in that described seal ring are 1-10.
4, the use that on metallurgy, mine, oil drilling and extracting equipment, seals of the described a kind of polyether-ether-ketone (PEEK) combined seal ring of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910187306A CN101649902A (en) | 2009-09-10 | 2009-09-10 | Polyether-ether-ketone (PEEK) combined seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910187306A CN101649902A (en) | 2009-09-10 | 2009-09-10 | Polyether-ether-ketone (PEEK) combined seal ring |
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| CN101649902A true CN101649902A (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910187306A Pending CN101649902A (en) | 2009-09-10 | 2009-09-10 | Polyether-ether-ketone (PEEK) combined seal ring |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220956A (en) * | 2010-08-31 | 2011-10-19 | 梁嘉麟 | Structure form of V-shaped piston ring capable of reducing clearance between piston and cylinder |
| CN102585906A (en) * | 2012-02-14 | 2012-07-18 | 合肥通用机械研究院 | Knocking device for removing carbon deposition from coal gasifier |
| CN103486262A (en) * | 2013-09-17 | 2014-01-01 | 常州君华特种工程塑料制品有限公司 | Polyether-ether-ketone sealing partition for filter unit in petroleum industry and manufacturing method |
| CN106000260A (en) * | 2016-06-29 | 2016-10-12 | 安徽省广德县华林造漆厂 | Detachable reaction kettle |
| CN106928650A (en) * | 2015-12-30 | 2017-07-07 | 广东生益科技股份有限公司 | A kind of PAEK composite containing filler, sheet material and the circuit substrate containing it |
| CN107002881A (en) * | 2014-11-28 | 2017-08-01 | 爱尔铃克铃尔股份公司 | Seal and the method for manufacturing seal |
| CN108799498A (en) * | 2017-04-28 | 2018-11-13 | 凯氟隆（厦门）密封件有限公司 | A kind of Novel down-hole tool combinations encapsulation scheme |
| CN109367330A (en) * | 2018-12-04 | 2019-02-22 | 江苏盛航精密制造有限公司 | A kind of automobile axle housing |
| CN111853233A (en) * | 2019-04-26 | 2020-10-30 | 株式会社神户制钢所 | Piston ring, reciprocating compressor, piston ring selection method, and life evaluation method |
-
2009
- 2009-09-10 CN CN200910187306A patent/CN101649902A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220956A (en) * | 2010-08-31 | 2011-10-19 | 梁嘉麟 | Structure form of V-shaped piston ring capable of reducing clearance between piston and cylinder |
| CN102585906A (en) * | 2012-02-14 | 2012-07-18 | 合肥通用机械研究院 | Knocking device for removing carbon deposition from coal gasifier |
| CN102585906B (en) * | 2012-02-14 | 2014-05-28 | 合肥通用机械研究院 | Knocking device for removing carbon deposition from coal gasifier |
| CN103486262A (en) * | 2013-09-17 | 2014-01-01 | 常州君华特种工程塑料制品有限公司 | Polyether-ether-ketone sealing partition for filter unit in petroleum industry and manufacturing method |
| CN107002881A (en) * | 2014-11-28 | 2017-08-01 | 爱尔铃克铃尔股份公司 | Seal and the method for manufacturing seal |
| CN106928650A (en) * | 2015-12-30 | 2017-07-07 | 广东生益科技股份有限公司 | A kind of PAEK composite containing filler, sheet material and the circuit substrate containing it |
| CN106000260A (en) * | 2016-06-29 | 2016-10-12 | 安徽省广德县华林造漆厂 | Detachable reaction kettle |
| CN106000260B (en) * | 2016-06-29 | 2018-06-29 | 安徽省广德县华林造漆厂 | A kind of dismountable reaction kettle |
| CN108799498A (en) * | 2017-04-28 | 2018-11-13 | 凯氟隆（厦门）密封件有限公司 | A kind of Novel down-hole tool combinations encapsulation scheme |
| CN109367330A (en) * | 2018-12-04 | 2019-02-22 | 江苏盛航精密制造有限公司 | A kind of automobile axle housing |
| CN111853233A (en) * | 2019-04-26 | 2020-10-30 | 株式会社神户制钢所 | Piston ring, reciprocating compressor, piston ring selection method, and life evaluation method |
| CN111853233B (en) * | 2019-04-26 | 2022-07-19 | 株式会社神户制钢所 | Piston ring, reciprocating compressor, piston ring selection method, and life evaluation method |
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Application publication date: 20100217 |