CN1844671A - Oil-free lubricated seal ring resistant to high temperature and high pressure - Google Patents
Oil-free lubricated seal ring resistant to high temperature and high pressure Download PDFInfo
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- CN1844671A CN1844671A CN 200510046194 CN200510046194A CN1844671A CN 1844671 A CN1844671 A CN 1844671A CN 200510046194 CN200510046194 CN 200510046194 CN 200510046194 A CN200510046194 A CN 200510046194A CN 1844671 A CN1844671 A CN 1844671A
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Abstract
The invention discloses a high-temperature high-pressure resistant non-oil lubricant sealing ring used in compressor. Wherein, the sealing ring is made from (mass percentage): polytetrafluoroethylene in 60-80%; carbon fiber in 6-22%; and filling agent in 5-35%; while the filling agent can be one or several of graphite, glass fiber, molybdenum disulfide and copper powder. The treatment comprises: at normal temperature: selecting raw material - mixing materials - checking - molding pressing - sintering - cooling, contracting and shaping - mechanically processing, to attain sealing ring. The invention has the advantages that: it is resistant to high pressure and high temperature, with long service life, better sealing effect and the application for variable working conditions.
Description
Technical field
The present invention relates to a kind of seal ring, the seal ring that especially a kind of reciprocal compressor uses.
Background technique
At present the seal ring that adopted of reciprocal compressor is divided into two kinds: a kind of formula metal ring, and need oil lubrication and make mill countercylinder, piston rod serious wear, cause cylinder, piston to scrap easily, influence ordinary production.Another kind is the filled polytetrafluoroethylene ring, can realize Oilless Lubrication Seal in Petroleum Gas; But compressor carry out existing in the process life-span short, sealing effect is poor, can not adapt to defectives such as various parameters and operating mode.And compare with regard to seal ring life-span and sealing effect, in the structural design and Material Used of ring, the Material Used proportion surpasses 70%.This just presses for a kind of high pressure resistant, high temperature resistant, life-span length, good sealing effect, can adapt to the oil-free lubricated seal ring resistant to high temperature and high pressure of various parameters and operating mode needs.
Summary of the invention
The purpose of this invention is to provide a kind of oil-free lubricated seal ring resistant to high temperature and high pressure, the life-span of solving seal ring appearance in the past lacks, sealing effect is poor, can not adapt to defectives such as various parameters and operating mode.
The present invention seeks to be achieved through the following technical solutions: seal ring adopts following material to constitute (weight percent):
Teflon 60-80%
Carbon fiber 6-22%
Bulking agent 5-35%
Above-mentioned bulking agent can be selected any one or two kinds of above material in graphite, glass fibre, molybdenum disulfide, the copper powder for use.
Above-mentioned teflon is selected for use more than granularity 220 orders, purity 99%, the floated teflon of tensile strength 27Mpa-35Mpa; Carbon fiber is selected granularity 0.02-0.5mm for use, slenderness ratio 10: 1-5: 1, and the PN grade carbon fiber of purity 99%; Glass fibre in the bulking agent is granularity 220 orders, slenderness ratio 10: 1-5: 1, and SiO
2Content 52%, water content is less than 1% E-glass fibre, and its loading is 5-20%; Graphite particle size is the 220-320 order, purity 99%, and its loading is 5-15%; The molybdenum disulfide granularity is 320 orders, purity 99%, and its loading is 2.5-5%; The copper powder granularity is the 220-320 order, the tin bronze level copper powder of purity 99%, and its loading is 8-20%.
According to the compressor main design parameters, teflon, carbon fiber and bulking agent are passed through following steps at normal temperatures:
Choose raw material-batch mixing-check-mold pressing-sintering-cooling and shrink typing-machining
Can produce seal ring.
The invention has the advantages that: high pressure resistant, high temperature resistant, life-span length, good sealing effect, can adapt to various parameters and operating mode needs.
Embodiment
Embodiment 1: seal ring adopts following material to constitute (weight percent)
Teflon 65
Carbon fiber 19
Glass fibre 12
Molybdenum disulfide 4
Above-mentioned teflon is selected for use more than granularity 220 orders, purity 99%, the floated teflon of tensile strength 27Mpa-35Mpa; Carbon fiber is selected granularity 0.02-0.5mm for use, slenderness ratio 10: 1-5: 1, and the PN grade carbon fiber of purity 99%; Glass fibre is granularity 220 orders, slenderness ratio 10: 1-5: 1, and SiO
2Content 52%, water content is less than 1% E-glass fibre; The molybdenum disulfide granularity is 320 orders, purity 99%.Each material is made and got final product by choosing the raw material-batch mixing-check-mold pressing-sintering-technology of cooling contraction typing-machining.
Embodiment's 1 described seal ring is applied in certain to be run through on the piston rod recycle compressor, is medium with nitrogen hydrogen, and at pressure reduction 32Mpa, normal operation still can be used in 7 months under the situation that temperature is 160 ℃, and original seal ring working life was 1 week.
Embodiment 2, and seal ring adopts following material to constitute (weight percent)
Teflon 71
Carbon fiber 15
Graphite 11
Molybdenum disulfide 3
Above-mentioned teflon is selected for use more than granularity 220 orders, purity 99%, the floated teflon of tensile strength 27Mpa-35Mpa; Carbon fiber is selected granularity 0.02-0.5mm for use, slenderness ratio 10: 1-5: 1, and the PN grade carbon fiber of purity 99%; Graphite particle size is the 220-320 order, purity 99%; The molybdenum disulfide granularity is 320 orders, purity 99%.Each material is made and got final product by choosing the raw material-batch mixing-check-mold pressing-sintering-technology of cooling contraction typing-machining.
Embodiment's 2 described seal rings are applied in certain to be run through on the piston rod recycle compressor, and with gas medium, at pressure reduction 2.3Mpa, normal operation is 6 months under 150 ℃ of situations of temperature, and former seal ring working life only is 4 days.
Embodiment 3, and seal ring adopts following material to constitute (weight percent)
Teflon 54
Carbon fiber 16
Graphite 13
Copper powder 17
Above-mentioned teflon is selected for use more than granularity 220 orders, purity 99%, the floated teflon of tensile strength 27Mpa-35Mpa; Carbon fiber is selected granularity 0.02-0.5mm for use, slenderness ratio 10: 1-5: 1, and the PN grade carbon fiber of purity 99%; Graphite particle size is the 220-320 order, purity 99%; The copper powder granularity is the 220-320 order, the tin bronze level copper powder of purity 99%.Each material is made and got final product by choosing the raw material-batch mixing-check-mold pressing-sintering-technology of cooling contraction typing-machining.
Embodiment's 3 described seal rings are applied on certain compressor, are medium with the air, and at pressure reduction 18Mpa, normal operation is 3 months under 165 ℃ of situations of temperature, and former seal ring working life only is 3 days.
Embodiment 4, and seal ring adopts following material to constitute (weight percent)
Teflon 62
Carbon fiber 22
Glass fibre 16
Above-mentioned teflon is selected for use more than granularity 220 orders, purity 99%, the floated teflon of tensile strength 27Mpa-35Mpa; Carbon fiber is selected granularity 0.02-0.5mm for use, slenderness ratio 10: 1-5: 1, and the PN grade carbon fiber of purity 99%; Glass fibre is granularity 220 orders, slenderness ratio 10: 1-5: 1, and SiO
2Content 52%, water content is less than 1% E-glass fibre.Each material is made and got final product by choosing the raw material-batch mixing-check-mold pressing-sintering-technology of cooling contraction typing-machining.
Embodiment's 4 described seal rings are applied on certain compressor, with methyl alcohol be medium at pressure reduction 11Mpa, normal operation is 18 months under 120 ℃ of situations of temperature, and former seal ring working life only is 5 days.
Embodiment 5, and seal ring adopts following material to constitute (weight percent)
Teflon 65
Carbon fiber 20
Graphite 15
Above-mentioned teflon is selected for use more than granularity 220 orders, purity 99%, the floated teflon of tensile strength 27Mpa-35Mpa; Carbon fiber is selected granularity 0.02-0.5mm for use, slenderness ratio 10: 1-5: 1, and the PN grade carbon fiber of purity 99%; Graphite particle size is the 220-320 order, purity 99%.Each material is made and got final product by choosing the raw material-batch mixing-check-mold pressing-sintering-technology of cooling contraction typing-machining.
Embodiment's 5 described seal rings are applied on certain compressor, with the carbon dioxide be medium at pressure reduction 21Mpa, normal operation is 8 months under 150 ℃ of situations of temperature.
Claims (2)
1, a kind ofly be used to make the oil-free lubricated seal ring resistant to high temperature and high pressure that uses on the compressor, it is characterized in that: it is by following material, constitutes by weight percentage:
Teflon 60-80%
Carbon fiber 6-22%
Bulking agent 5-35%
2, seal ring according to claim 1 is characterized in that: bulking agent can select for use any one or two kinds of above material in graphite, glass fibre, molybdenum disulfide, the copper powder to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510046194 CN1844671A (en) | 2005-04-08 | 2005-04-08 | Oil-free lubricated seal ring resistant to high temperature and high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510046194 CN1844671A (en) | 2005-04-08 | 2005-04-08 | Oil-free lubricated seal ring resistant to high temperature and high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1844671A true CN1844671A (en) | 2006-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510046194 Pending CN1844671A (en) | 2005-04-08 | 2005-04-08 | Oil-free lubricated seal ring resistant to high temperature and high pressure |
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665607B (en) * | 2009-09-18 | 2011-10-26 | 哈尔滨工业大学 | Revolving shaft sealing material and preparation method thereof |
| CN102434738A (en) * | 2011-11-19 | 2012-05-02 | 江苏金童重机制造有限公司 | High-temperature sealing material and pipeline expansion piece adopting same |
| CN101735536B (en) * | 2010-01-14 | 2012-07-11 | 张家港富瑞特种装备股份有限公司 | Formula of valve liner material |
| CN102734570A (en) * | 2012-06-20 | 2012-10-17 | 浙江吉利汽车研究院有限公司杭州分公司 | Cooling hose for turbocharger of engine |
| CN102748468A (en) * | 2012-07-16 | 2012-10-24 | 江苏新氟隆塑胶有限公司 | Piston ring |
| CN103062407A (en) * | 2012-12-29 | 2013-04-24 | 太仓市明宇密封件有限公司 | Square coaxial sealing element |
| CN101747570B (en) * | 2008-12-18 | 2013-12-18 | 株式会社阪上制作所 | Sliding part and sealing device |
| CN103467896A (en) * | 2013-09-18 | 2013-12-25 | 常德翔宇设备制造有限公司 | Manufacturing method of enhanced polytetrafluoroethylene for high-medium pressure valve sealing element |
| CN103742413A (en) * | 2013-12-27 | 2014-04-23 | 四川省鼓风机制造有限责任公司 | Air sealing ring |
| CN103980639A (en) * | 2014-05-22 | 2014-08-13 | 徐伯琴 | Production technique of high-wear-resistance seal ring |
| CN104262872A (en) * | 2014-09-10 | 2015-01-07 | 东莞理工学院 | Composite material for bearings as well as preparation method and application of composite material |
| CN104629652A (en) * | 2013-11-13 | 2015-05-20 | 天津市翔悦密封材料有限公司 | Pressure sealant and production technology thereof |
| CN104650511A (en) * | 2014-06-21 | 2015-05-27 | 柳州凯通机械有限公司 | Carbon fiber piston ring |
| CN104943046A (en) * | 2015-05-22 | 2015-09-30 | 欧宝聚合物江苏有限公司 | Preparation method of tetra-fluorine sealing ring |
| CN106195262A (en) * | 2016-07-15 | 2016-12-07 | 瑞安市亚星汽车配件有限公司 | Environment-friendly type oil-free vehicle-mounted air compressor and the piston collar thereof |
| CN106939897A (en) * | 2017-04-11 | 2017-07-11 | 天门市江汉石油三机传动设备有限公司 | A kind of pump labyrinth type combination sealing and its preparation |
| CN107269514A (en) * | 2017-06-16 | 2017-10-20 | 奇瑞汽车股份有限公司 | A kind of automobile hydraulic power steering gear piston ring |
| CN107474453A (en) * | 2017-09-22 | 2017-12-15 | 南京肯特复合材料股份有限公司 | High temperature resistant high-temperature region sealing strip PTFE resin composite and preparation method thereof |
| CN107573623A (en) * | 2017-09-22 | 2018-01-12 | 南京肯特复合材料股份有限公司 | Self-lubricating high-temperature region sealing strip PTFE resin composite and preparation method thereof |
| CN108440879A (en) * | 2018-03-06 | 2018-08-24 | 宁波联博斯密封材料有限公司 | High temperature pressurised ptfe composite and products thereof manufacturing process and ring pads |
| CN111637228A (en) * | 2020-05-29 | 2020-09-08 | 成都凯天电子股份有限公司 | Mechanical seal static friction ring material for cryogenic pump |
| CN112239584A (en) * | 2020-09-28 | 2021-01-19 | 镇江瑞昊工程塑料有限公司 | Polytetrafluoroethylene sealing ring and processing technology thereof |
| CN112940418A (en) * | 2021-03-05 | 2021-06-11 | 四川鹿台科技有限公司 | Preparation formula of special valve sealing piece |
| CN113980405A (en) * | 2021-09-30 | 2022-01-28 | 中国船舶重工集团公司第七一八研究所 | Manufacturing method of modified polytetrafluoroethylene sealing gasket and sealing gasket |
| CN114031872A (en) * | 2021-12-02 | 2022-02-11 | 沈阳工业大学 | Polytetrafluoroethylene sealing friction material for hydraulic oil cylinder and preparation method thereof |
| CN114165587A (en) * | 2021-11-04 | 2022-03-11 | 沈阳恒曼压缩机制造有限公司 | Medium-high pressure nitrogen gas sealing filler structure |
-
2005
- 2005-04-08 CN CN 200510046194 patent/CN1844671A/en active Pending
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747570B (en) * | 2008-12-18 | 2013-12-18 | 株式会社阪上制作所 | Sliding part and sealing device |
| CN101665607B (en) * | 2009-09-18 | 2011-10-26 | 哈尔滨工业大学 | Revolving shaft sealing material and preparation method thereof |
| CN101735536B (en) * | 2010-01-14 | 2012-07-11 | 张家港富瑞特种装备股份有限公司 | Formula of valve liner material |
| CN102434738A (en) * | 2011-11-19 | 2012-05-02 | 江苏金童重机制造有限公司 | High-temperature sealing material and pipeline expansion piece adopting same |
| CN102734570B (en) * | 2012-06-20 | 2015-08-05 | 浙江吉利汽车研究院有限公司杭州分公司 | Turbocharger of motor cooling tube |
| CN102734570A (en) * | 2012-06-20 | 2012-10-17 | 浙江吉利汽车研究院有限公司杭州分公司 | Cooling hose for turbocharger of engine |
| CN102748468A (en) * | 2012-07-16 | 2012-10-24 | 江苏新氟隆塑胶有限公司 | Piston ring |
| CN103062407A (en) * | 2012-12-29 | 2013-04-24 | 太仓市明宇密封件有限公司 | Square coaxial sealing element |
| CN103467896A (en) * | 2013-09-18 | 2013-12-25 | 常德翔宇设备制造有限公司 | Manufacturing method of enhanced polytetrafluoroethylene for high-medium pressure valve sealing element |
| CN103467896B (en) * | 2013-09-18 | 2015-06-17 | 常德翔宇设备制造有限公司 | Manufacturing method of enhanced polytetrafluoroethylene for high-medium pressure valve sealing element |
| CN104629652A (en) * | 2013-11-13 | 2015-05-20 | 天津市翔悦密封材料有限公司 | Pressure sealant and production technology thereof |
| CN104629652B (en) * | 2013-11-13 | 2016-08-17 | 天津市翔悦密封材料有限公司 | On-line pressure sealant injecting and production technology thereof |
| CN103742413A (en) * | 2013-12-27 | 2014-04-23 | 四川省鼓风机制造有限责任公司 | Air sealing ring |
| CN103980639A (en) * | 2014-05-22 | 2014-08-13 | 徐伯琴 | Production technique of high-wear-resistance seal ring |
| CN104650511A (en) * | 2014-06-21 | 2015-05-27 | 柳州凯通机械有限公司 | Carbon fiber piston ring |
| CN104262872A (en) * | 2014-09-10 | 2015-01-07 | 东莞理工学院 | Composite material for bearings as well as preparation method and application of composite material |
| CN104943046A (en) * | 2015-05-22 | 2015-09-30 | 欧宝聚合物江苏有限公司 | Preparation method of tetra-fluorine sealing ring |
| CN106195262A (en) * | 2016-07-15 | 2016-12-07 | 瑞安市亚星汽车配件有限公司 | Environment-friendly type oil-free vehicle-mounted air compressor and the piston collar thereof |
| CN106939897A (en) * | 2017-04-11 | 2017-07-11 | 天门市江汉石油三机传动设备有限公司 | A kind of pump labyrinth type combination sealing and its preparation |
| CN107269514A (en) * | 2017-06-16 | 2017-10-20 | 奇瑞汽车股份有限公司 | A kind of automobile hydraulic power steering gear piston ring |
| CN107474453A (en) * | 2017-09-22 | 2017-12-15 | 南京肯特复合材料股份有限公司 | High temperature resistant high-temperature region sealing strip PTFE resin composite and preparation method thereof |
| CN107573623A (en) * | 2017-09-22 | 2018-01-12 | 南京肯特复合材料股份有限公司 | Self-lubricating high-temperature region sealing strip PTFE resin composite and preparation method thereof |
| CN108440879A (en) * | 2018-03-06 | 2018-08-24 | 宁波联博斯密封材料有限公司 | High temperature pressurised ptfe composite and products thereof manufacturing process and ring pads |
| CN111637228A (en) * | 2020-05-29 | 2020-09-08 | 成都凯天电子股份有限公司 | Mechanical seal static friction ring material for cryogenic pump |
| CN112239584A (en) * | 2020-09-28 | 2021-01-19 | 镇江瑞昊工程塑料有限公司 | Polytetrafluoroethylene sealing ring and processing technology thereof |
| CN112940418A (en) * | 2021-03-05 | 2021-06-11 | 四川鹿台科技有限公司 | Preparation formula of special valve sealing piece |
| CN113980405A (en) * | 2021-09-30 | 2022-01-28 | 中国船舶重工集团公司第七一八研究所 | Manufacturing method of modified polytetrafluoroethylene sealing gasket and sealing gasket |
| CN114165587A (en) * | 2021-11-04 | 2022-03-11 | 沈阳恒曼压缩机制造有限公司 | Medium-high pressure nitrogen gas sealing filler structure |
| CN114031872A (en) * | 2021-12-02 | 2022-02-11 | 沈阳工业大学 | Polytetrafluoroethylene sealing friction material for hydraulic oil cylinder and preparation method thereof |
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