CN102072322A - Combined type sealing device with double end faces - Google Patents
Combined type sealing device with double end faces Download PDFInfo
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- CN102072322A CN102072322A CN2011100330101A CN201110033010A CN102072322A CN 102072322 A CN102072322 A CN 102072322A CN 2011100330101 A CN2011100330101 A CN 2011100330101A CN 201110033010 A CN201110033010 A CN 201110033010A CN 102072322 A CN102072322 A CN 102072322A
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- double end
- ring
- seal
- end sealer
- primary seal
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Abstract
The invention relates to a combined type sealing device with double end faces, which is installed at fluid conveying equipment to realize the sealing of a shaft end. The combined type sealing device with the double end faces comprises a primary seal and a secondary seal, wherein the primary seal is in direct contact with fluid to be sealed, the secondary seal is in direct contact with the atmosphere, the primary seal comprises a pair of primary friction rings, and the secondary seal comprises a pair of secondary friction rings. Because the combined type sealing device with the double end faces, which is disclosed by the invention, adopts a double-seal structure, the operational reliability is high, and the combined type sealing device with the double end faces is suitable for sealing the shaft end of the conveying equipment of the fluid which has high viscosity and strong adhesiveness and is easy to polymerize.
Description
Technical field
The present invention relates to a kind of mechanical seal device, especially relate to a kind of Double End sealer with assembled.
Background technique
In the prior art, in oil and petrochemical industry industry, for high viscositys such as plastics, paper pulp, coating, rubber stoste resin, easy polymerization and the strong fluid of adhesive quality, the shaft end seal form of its conveying equipment, usually adopt common mechanical seal, i.e. plane sealing structure.From working life, far below its sealing life in common low viscous stabilized fluid.Because plane sealing end face broad, this class fluid easily forms condensation product between sealing surface, thereby make the sealing disablement, the rubbing surface of broad needs enough big elastic force could guarantee that sealing surface fits tightly simultaneously, can produce a large amount of frictional heats so in the course of the work, make friction ring be in the high temperature friction state for a long time and produce hot tearing, cause plane sealing early failue, so be difficult to working life improve.
Summary of the invention
The purpose of this invention is to provide a kind of long service life, simple and reasonable, the functional reliability height is applicable to the Double End sealer with assembled of shaft end seal of the conveying equipment of high viscosity, fluid that easily polymerization and adhesive quality are strong.
For achieving the above object, the technical solution used in the present invention is:
A kind of Double End sealer with assembled, be installed on conveying equipment for fluid substances and realize shaft end seal, described Double End sealer with assembled comprises primary seal, secondary sealing, and described primary seal directly contacts with sealed fluid, described secondary sealing directly contacts with atmosphere
Described primary seal comprises a pair of main friction ring, and described secondary sealing comprises a pair of secondary friction ring.
Preferably, form the cavity of sealing between described primary seal and the described secondary sealing, be connected with pressure transducer in the described cavity.
Preferably, described primary seal is edge seal, any one described main friction ring with another contacted of described main friction ring be its rubbing surface, described rubbing surface is an annular, and the rubbing surface width of a described main friction ring is less than the width of the rubbing surface of another described main friction ring.
Preferably, the monolateral width of the less rubbing surface of described width is 0.1-0.5mm.
Preferably, described main friction ring comprises initiatively ring, main stationary ring, is connected with main elastic compensating element on the described active ring.
Preferably, described main elastic compensating element is a bellows.
Preferably, described pair is sealed into plane sealing.
Preferably, described Double End sealer with assembled also comprises gland, axle sleeve, driving ring, seal ring, the limiting stopper that described primary seal and described secondary sealing are installed.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1, because the present invention adopts double sealing structure, after primary seal lost efficacy, pair was sealed under the effect of pressure medium and enters working state, forms defence line, second road, the functional reliability height is applicable to the shaft end seal of the conveying equipment of high viscosity, fluid that easily polymerization and adhesive quality are strong;
2, because primary seal of the present invention adopts edge seal, and fricative heat is little, good heat dissipation effect, the interior outside has a narrow range of temperature, and the influence of temperature distortion and pressure distortion is little, thereby guarantees that sealability is stable; Simultaneously, because main friction ring sharp edge is sharp-pointed, when high speed rotating, can cuts off condensation product between sealing surface, thereby guarantee normal sealability;
3, because the pressure transducer that the present invention the installs runnability of watch-dog constantly, when primary seal lost efficacy, pair was sealed under the effect of pressure and starts working, and avoids being harmful to fluid and leaks outside.
Description of drawings
Accompanying drawing 1 is the structural representation of Double End sealer with assembled of the present invention.
In the above accompanying drawing: 1, gland; 2, axle sleeve; 3, driving ring; 4, seal ring; 5, limiting stopper; 6, primary seal; 7, secondary sealing; 8, main friction ring; 9, initiatively encircle; 10, main stationary ring; 11, main elastic compensating element; 12, secondary friction ring; 13, secondary rotating ring; 14, secondary stationary ring; 15, secondary elastic compensating element; 16, cavity.
Embodiment
Below in conjunction with embodiment shown in the drawings the present invention is further described.
Embodiment one: shown in accompanying drawing 1.
A kind of Double End sealer with assembled is installed on conveying equipment for fluid substances, is used to realize shaft end seal, comprises gland 1, axle sleeve 2, driving ring 3, seal ring 4, limiting stopper 5, primary seal 6, secondary sealing 7.
Primary seal directly contacts with sealed fluid, and secondary sealing directly contacts with atmosphere.
Primary seal 6 is edge seal, and primary seal 6 comprises a pair of main friction ring 8.Main friction ring 8 comprise initiatively encircle 9, main stationary ring 10, any one main friction ring 8 with another 8 contacted of main friction ring be its rubbing surface, rubbing surface is an annular, initiatively encircle the monolateral width of the monolateral width of 9 rubbing surface less than the rubbing surface of main stationary ring 10, the monolateral width that initiatively encircles 9 rubbing surface is 0.1-0.5mm.Initiatively encircle and be connected with main elastic compensating element 11 on 9, main elastic compensating element 11 is a bellows.
Form the cavity 16 of sealing between primary seal 6 and the secondary sealing 7, be connected with pressure transducer in the cavity 16.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. Double End sealer with assembled, be installed on conveying equipment for fluid substances and realize shaft end seal, it is characterized in that: described Double End sealer with assembled comprises primary seal, secondary sealing, and described primary seal directly contacts with sealed fluid, described secondary sealing directly contacts with atmosphere
Described primary seal comprises a pair of main friction ring, and described secondary sealing comprises a pair of secondary friction ring.
2. Double End sealer with assembled according to claim 1 is characterized in that: form the cavity of sealing between described primary seal and the described secondary sealing, be connected with pressure transducer in the described cavity.
3. Double End sealer with assembled according to claim 1, it is characterized in that: described primary seal is edge seal, any one described main friction ring with another contacted of described main friction ring be its rubbing surface, described rubbing surface is an annular, and the rubbing surface width of a described main friction ring is less than the width of the rubbing surface of another described main friction ring.
4. Double End sealer with assembled according to claim 3 is characterized in that: the monolateral width of the rubbing surface that described width is less is 0.1-0.5mm.
5. Double End sealer with assembled according to claim 1 is characterized in that: described main friction ring comprises initiatively ring, main stationary ring, is connected with main elastic compensating element on the described active ring.
6. Double End sealer with assembled according to claim 5 is characterized in that: described main elastic compensating element is a bellows.
7. Double End sealer with assembled according to claim 1 is characterized in that: described pair is sealed into plane sealing.
8. Double End sealer with assembled according to claim 1 is characterized in that: described Double End sealer with assembled also comprises gland, axle sleeve, driving ring, seal ring, the limiting stopper that described primary seal and described secondary sealing are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100330101A CN102072322A (en) | 2011-01-31 | 2011-01-31 | Combined type sealing device with double end faces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100330101A CN102072322A (en) | 2011-01-31 | 2011-01-31 | Combined type sealing device with double end faces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102072322A true CN102072322A (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100330101A Pending CN102072322A (en) | 2011-01-31 | 2011-01-31 | Combined type sealing device with double end faces |
Country Status (1)
| Country | Link |
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| CN (1) | CN102072322A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494139A (en) * | 2011-12-16 | 2012-06-13 | 山东米科思机械设备有限公司 | Novel shaft-end sealing structure of concrete mixer |
| CN103090014A (en) * | 2011-10-31 | 2013-05-08 | 祥景精机股份有限公司 | Cartridge counter-pressure-resistant shaft seal |
| CN103711909A (en) * | 2013-12-17 | 2014-04-09 | 南通密炼捏合机械有限公司 | Horizontal type shaft head sealing structure |
| CN103826419A (en) * | 2012-11-19 | 2014-05-28 | 丰田自动车株式会社 | Connection structure and inverter |
| CN104455438A (en) * | 2014-12-07 | 2015-03-25 | 无锡高卓流体设备有限公司 | Double-end-face sealing device |
| CN104455452A (en) * | 2014-12-07 | 2015-03-25 | 无锡高卓流体设备有限公司 | Novel double end surface sealing device |
| CN107923537A (en) * | 2016-06-20 | 2018-04-17 | 机械制造中心设计局股份公司 | End face seal |
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|---|---|---|---|---|
| US3508758A (en) * | 1966-10-12 | 1970-04-28 | Sulzer Ag | Fluid-tight seal for rotating shaft |
| CN2128325Y (en) * | 1992-06-17 | 1993-03-17 | 丁慧生 | Magnetic particle clutch/brake seal device |
| CN1099466A (en) * | 1993-08-25 | 1995-03-01 | 日本皮拉工业株式会社 | A shaft seal device |
| US5412977A (en) * | 1992-07-02 | 1995-05-09 | Sulzer Escher Wyss Ag | Turbo machine with an axial dry gas seal |
| CN2373639Y (en) * | 1999-04-30 | 2000-04-12 | 石家庄工业泵厂 | Spring sealed mechanical seal |
| JP2004084688A (en) * | 2002-08-22 | 2004-03-18 | Nippon Petroleum Refining Co Ltd | Filter device of sealing gas |
| CN2727462Y (en) * | 2004-05-29 | 2005-09-21 | 汤奇 | Automatic controlled combined gas sealing system |
| CN101215954A (en) * | 2008-01-09 | 2008-07-09 | 西南石油大学 | High sealing property screw drill driving-shaft assembly |
| CN201206556Y (en) * | 2008-05-30 | 2009-03-11 | 无锡中策机电设备有限公司 | Vacuum pressure air pump with built-in blade sealing arrangement |
| CN201521639U (en) * | 2009-10-13 | 2010-07-07 | 江苏金鹰流体机械有限公司 | Flange of parallel double-shaft mechanical sealing device |
| WO2010102940A1 (en) * | 2009-03-10 | 2010-09-16 | Siemens Aktiengesellschaft | Shaft seal for a turbomachine |
| EP2246597A1 (en) * | 2008-02-25 | 2010-11-03 | Eagle Industry Co., Ltd. | Shaft sealing device |
| CN201963876U (en) * | 2011-01-31 | 2011-09-07 | 江苏金鹰流体机械有限公司 | Double end face combination sealing device |
-
2011
- 2011-01-31 CN CN2011100330101A patent/CN102072322A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3508758A (en) * | 1966-10-12 | 1970-04-28 | Sulzer Ag | Fluid-tight seal for rotating shaft |
| CN2128325Y (en) * | 1992-06-17 | 1993-03-17 | 丁慧生 | Magnetic particle clutch/brake seal device |
| US5412977A (en) * | 1992-07-02 | 1995-05-09 | Sulzer Escher Wyss Ag | Turbo machine with an axial dry gas seal |
| CN1099466A (en) * | 1993-08-25 | 1995-03-01 | 日本皮拉工业株式会社 | A shaft seal device |
| CN2373639Y (en) * | 1999-04-30 | 2000-04-12 | 石家庄工业泵厂 | Spring sealed mechanical seal |
| JP2004084688A (en) * | 2002-08-22 | 2004-03-18 | Nippon Petroleum Refining Co Ltd | Filter device of sealing gas |
| CN2727462Y (en) * | 2004-05-29 | 2005-09-21 | 汤奇 | Automatic controlled combined gas sealing system |
| CN101215954A (en) * | 2008-01-09 | 2008-07-09 | 西南石油大学 | High sealing property screw drill driving-shaft assembly |
| EP2246597A1 (en) * | 2008-02-25 | 2010-11-03 | Eagle Industry Co., Ltd. | Shaft sealing device |
| CN201206556Y (en) * | 2008-05-30 | 2009-03-11 | 无锡中策机电设备有限公司 | Vacuum pressure air pump with built-in blade sealing arrangement |
| WO2010102940A1 (en) * | 2009-03-10 | 2010-09-16 | Siemens Aktiengesellschaft | Shaft seal for a turbomachine |
| CN201521639U (en) * | 2009-10-13 | 2010-07-07 | 江苏金鹰流体机械有限公司 | Flange of parallel double-shaft mechanical sealing device |
| CN201963876U (en) * | 2011-01-31 | 2011-09-07 | 江苏金鹰流体机械有限公司 | Double end face combination sealing device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090014A (en) * | 2011-10-31 | 2013-05-08 | 祥景精机股份有限公司 | Cartridge counter-pressure-resistant shaft seal |
| CN103090014B (en) * | 2011-10-31 | 2015-08-26 | 祥景精机股份有限公司 | Cartridge counter-pressure-resshaftt shaftt seal |
| CN102494139A (en) * | 2011-12-16 | 2012-06-13 | 山东米科思机械设备有限公司 | Novel shaft-end sealing structure of concrete mixer |
| CN103826419A (en) * | 2012-11-19 | 2014-05-28 | 丰田自动车株式会社 | Connection structure and inverter |
| CN103826419B (en) * | 2012-11-19 | 2016-08-17 | 丰田自动车株式会社 | Attachment structure and inverter |
| CN103711909A (en) * | 2013-12-17 | 2014-04-09 | 南通密炼捏合机械有限公司 | Horizontal type shaft head sealing structure |
| CN104455438A (en) * | 2014-12-07 | 2015-03-25 | 无锡高卓流体设备有限公司 | Double-end-face sealing device |
| CN104455452A (en) * | 2014-12-07 | 2015-03-25 | 无锡高卓流体设备有限公司 | Novel double end surface sealing device |
| CN107923537A (en) * | 2016-06-20 | 2018-04-17 | 机械制造中心设计局股份公司 | End face seal |
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Application publication date: 20110525 |