CN203670800U - Magnetic liquid sealing device for sealing liquid - Google Patents
Magnetic liquid sealing device for sealing liquid Download PDFInfo
- Publication number
- CN203670800U CN203670800U CN201420031177.3U CN201420031177U CN203670800U CN 203670800 U CN203670800 U CN 203670800U CN 201420031177 U CN201420031177 U CN 201420031177U CN 203670800 U CN203670800 U CN 203670800U
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- Prior art keywords
- ring
- pole shoe
- sealing
- seal
- overcoat
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Abstract
The utility model discloses a magnetic liquid sealing device for sealing liquid, and belongs to the field of mechanical engineering sealing. The device comprises a rotating shaft (1), a shaft sleeve sealing ring (2), a fixed pin (3), a shaft sleeve (4), a movable ring (5), a movable ring sealing ring (6), a static ring (7), a static ring sealing ring (8), a spring (9), an outer sleeve (10), a left partition magnetic ring (11), a left pole shoe sealing ring (12), a left pole shoe (13), a permanent magnet (14), a right pole shoe sealing ring (15), a right pole shoe (16), a right partition magnetic ring (17) and a threaded end cover (18). The characteristics that sealing of an upstream pumping machine resists high pressure and zero leakage of sealing of magnetic liquid is achieved are utilized by the device, zero leakage of sealing of the magnetic liquid and sealing of the upstream pumping machine is achieved, and the application range of sealing of the magnetic liquid is expanded.
Description
Technical field
The invention belongs to sealing field of mechanical engineering.
Background technique
Upstream pumping mechanical seal is widely used in the industries such as oil, chemical industry, machinery in various mechanical rotary seals.The advantage of its relative magnetic fluid sealing maximum is can sealing high-pressure liquid.However, upstream pumping mechanical seal can not be accomplished zero leakage, a small amount of while being flow to low voltage side by sealing liquid body when having, and probably cause environmental pollution or device damage, and magnetic fluid sealing technology can be accomplished zero leakage in the situation that of lower pressure.
Summary of the invention
The technical issues that need to address of the present invention be magnetic fluid sealing can not sealing high-pressure liquid and upstream pumping mechanical seal cannot realize zero leakage.Therefore magnetic fluid seal device for seal fluid is proposed.
The technical solution adopted for the present invention to solve the technical problems is:
For the magnetic fluid seal device of seal fluid, form this device and comprise: rotating shaft, sleeve sealing circle, fixing pin, axle sleeve, rotating ring, seal ring of moving ring, stationary ring, stationary ring seal ring, spring, overcoat, left magnetism resistent ring, left pole shoe seal ring, left pole shoe, permanent magnet, right pole shoe seal ring, right pole shoe, right magnetism resistent ring, thread ending cover.
Connection between this device each several part:
Permanent magnet is arranged on to left pole shoe right side, right pole shoe is arranged on to permanent magnet right side; Left pole shoe seal ring is arranged in left pole shoe cylindrical Baltimore groove, and right pole shoe seal ring is arranged in right pole shoe cylindrical Baltimore groove; Left pole shoe seal ring, left pole shoe, permanent magnet, right pole shoe seal ring and right pole shoe form magnetic fluid sealing assembly; Left magnetism resistent ring, magnetic fluid sealing assembly and right magnetism resistent ring order are packed in overcoat right-hand member counterbore.
Spring fitting is fixed to overcoat left end interior edge face and with overcoat; Stationary ring seal ring is arranged in stationary ring cylindrical Baltimore groove, and stationary ring is packed in overcoat left end inner circle, and stationary ring right side and spring are fixed.
Seal ring of moving ring is arranged in rotating ring cylindrical Baltimore groove, and rotating ring is packed in axle sleeve left end groove; Fixing pin is packed in the pin-and-hole of axle sleeve and rotating ring, rotating ring and axle sleeve are fixed; Sleeve sealing circle is arranged in the Baltimore groove of axle sleeve left end inner circle; Rotating shaft is packed in axle sleeve; Rotating shaft, sleeve sealing circle, fixing pin, axle sleeve, rotating ring and seal ring of moving ring form rotating assembly.
Rotating assembly packs into the endoporus being formed by stationary ring, overcoat and magnetic fluid sealing assembly from left end; Rotating assembly, stationary ring, stationary ring seal ring and spring form upstream pumping mechanical seal assembly.
Thread ending cover is arranged on the right side of right magnetism resistent ring, and by thread ending cover and overcoat being fixed with being threaded of overcoat.
At upstream pumping mechanical seal assembly right side combination magnetic fluid sealing assembly, upstream pumping mechanical seal is arranged on high pressure side, and magnetic fluid sealing is arranged on low voltage side.
Put hole a outward for injecting magnetic liquid as buffer fluid.In the time that upstream pumping mechanical seal occurs to leak, the high pressure magnetic liquid one side balance high pressure of injection and the pressure difference of low voltage side, stop to leak further to occur; On the other hand, stop by sealing liquid body magnetropism hydraulic seal place flowing pollution magnetic fluid sealing.
The present invention compares had beneficial effect with prior art:
The present invention has adopted the sealing means of magnetic fluid sealing and upstream pumping mechanical seal combination, has utilized the feature of the high voltage bearing feature of upstream pumping mechanical seal and magnetic fluid sealing zero leakage.After upstream pumping mechanical seal, sealed fluid pressure significantly to decline; Magnetic liquid, as buffer fluid, will be separated by sealing liquid body and magnetic fluid sealing, avoid, by sealing liquid body pollution magnetic fluid sealing, having realized magnetic fluid sealing liquid, and reach sealing zero leakage.
Accompanying drawing explanation
Fig. 1 upstream pumping mechanical seal and magnetic fluid sealing combination erection drawing.
In figure: rotating shaft 1, sleeve sealing circle 2, fixing pin 3, axle sleeve 4, rotating ring 5, seal ring of moving ring 6, stationary ring 7, stationary ring seal ring 8, spring 9, overcoat 10, left magnetism resistent ring 11, left pole shoe seal ring 12, left pole shoe 13, permanent magnet 14, right pole shoe seal ring 15, right pole shoe 16, right magnetism resistent ring 17, thread ending cover 18.
Embodiment
Take accompanying drawing 1 as embodiment, the invention will be further described:
For the magnetic fluid seal device of seal fluid, form this device and comprise: rotating shaft 1, sleeve sealing circle 2, fixing pin 3, axle sleeve 4, rotating ring 5, seal ring of moving ring 6, stationary ring 7, stationary ring seal ring 8, spring 9, overcoat 10, left magnetism resistent ring 11, left pole shoe seal ring 12, left pole shoe 13, permanent magnet 14, right pole shoe seal ring 15, right pole shoe 16, right magnetism resistent ring 17, thread ending cover 18.
Connection between this device each several part:
Seal ring of moving ring 6 is arranged in rotating ring 5 cylindrical Baltimore grooves, and rotating ring 5 is packed in axle sleeve 4 left end grooves; Fixing pin 3 is packed in the pin-and-hole of axle sleeve 4 and rotating ring 5, rotating ring 5 is fixing with axle sleeve 4; Sleeve sealing circle 2 is arranged in the Baltimore groove of axle sleeve 4 left end inner circles; Rotating shaft 1 is packed in axle sleeve 4, and axle sleeve 4 is interference fit with rotating shaft 1; Rotating shaft 1, sleeve sealing circle 2, fixing pin 3, axle sleeve 4, rotating ring 5 and seal ring of moving ring 6 form rotating assembly.
Rotating assembly packs into the endoporus being formed by stationary ring 7, overcoat 10 and magnetic fluid sealing assembly from left end; Rotating assembly, stationary ring 7, stationary ring seal ring 8 and spring 9 form upstream pumping mechanical seal assembly.
At upstream pumping mechanical seal assembly right side combination magnetic fluid sealing assembly, upstream pumping mechanical seal is arranged on high pressure side, and magnetic fluid sealing is arranged on low voltage side.
On overcoat 10, hole a is used for injecting magnetic liquid as buffer fluid.
Claims (1)
1. for the magnetic fluid seal device of seal fluid, form this device and comprise:
Rotating shaft (1), sleeve sealing circle (2), fixing pin (3), axle sleeve (4), rotating ring (5), seal ring of moving ring (6), stationary ring (7), stationary ring seal ring (8), spring (9), overcoat (10), left magnetism resistent ring (11), left pole shoe seal ring (12), left pole shoe (13), permanent magnet (14), right pole shoe seal ring (15), right pole shoe (16), right magnetism resistent ring (17), thread ending cover (18);
Connection between this device each several part:
Permanent magnet (14) is arranged on to left pole shoe (13) right side, right pole shoe (16) is arranged on to permanent magnet (14) right side; Left pole shoe seal ring (12) is arranged in left pole shoe (13) cylindrical Baltimore groove, and right pole shoe seal ring (15) is arranged in right pole shoe (16) cylindrical Baltimore groove; Left pole shoe seal ring (12), left pole shoe (13), permanent magnet (14), right pole shoe seal ring (15) and right pole shoe (16) form magnetic fluid sealing assembly; Left magnetism resistent ring (11), magnetic fluid sealing assembly and right magnetism resistent ring (17) order are packed in overcoat (10) right-hand member counterbore;
Spring (9) is installed on overcoat (10) left end interior edge face and is fixed with overcoat; Stationary ring seal ring (8) is arranged in stationary ring (7) cylindrical Baltimore groove, and stationary ring (7) is packed in overcoat (10) left end inner circle, and stationary ring (7) right side and spring (9) are fixing;
Seal ring of moving ring (6) is arranged in rotating ring (5) cylindrical Baltimore groove, and rotating ring (5) is packed in axle sleeve (4) left end groove; Fixing pin (3) is packed in the pin-and-hole of axle sleeve (4) and rotating ring (5), by fixing to rotating ring (5) and axle sleeve (4); Sleeve sealing circle (2) is arranged in the Baltimore groove of axle sleeve (4) left end inner circle; Rotating shaft (1) is packed in axle sleeve (4); Rotating shaft (1), sleeve sealing circle (2), fixing pin (3), axle sleeve (4), rotating ring (5) and seal ring of moving ring (6) form rotating assembly;
Rotating assembly packs into the endoporus being formed by stationary ring (7), overcoat (10) and magnetic fluid sealing assembly from left end; Rotating assembly, stationary ring (7), stationary ring seal ring (8) and spring (9) form upstream pumping mechanical seal assembly;
Thread ending cover (18) is arranged on the right side of right magnetism resistent ring (17), and by thread ending cover (18) and overcoat (10) being fixed with being threaded of overcoat (10);
It is characterized in that: at upstream pumping mechanical seal assembly right side combination magnetic fluid sealing assembly, upstream pumping mechanical seal is arranged on high pressure side, and magnetic fluid sealing is arranged on low voltage side;
The upper hole (a) of overcoat (10) is for injecting magnetic liquid as buffer fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031177.3U CN203670800U (en) | 2014-01-17 | 2014-01-17 | Magnetic liquid sealing device for sealing liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031177.3U CN203670800U (en) | 2014-01-17 | 2014-01-17 | Magnetic liquid sealing device for sealing liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670800U true CN203670800U (en) | 2014-06-25 |
Family
ID=50967098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420031177.3U Expired - Fee Related CN203670800U (en) | 2014-01-17 | 2014-01-17 | Magnetic liquid sealing device for sealing liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670800U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763575A (en) * | 2015-02-04 | 2015-07-08 | 浙江大学 | Impeller main shaft sealing device for ocean current energy power generation system |
| CN104879501A (en) * | 2015-04-18 | 2015-09-02 | 中煤张家口煤矿机械有限责任公司 | Sealing method used for reducer of scraper conveyor |
| CN105465374A (en) * | 2016-01-28 | 2016-04-06 | 自贡兆强环保科技股份有限公司 | Oil mist sealing structure of hydraulic generator |
| CN106499824A (en) * | 2017-01-09 | 2017-03-15 | 昆明理工大学 | A kind of reciprocating magnetic liquid self-circulation lubricating sealing device |
| CN108799506A (en) * | 2018-09-03 | 2018-11-13 | 广西科技大学 | A kind of more magnetic source symmetric form device for sealing magnetic fluid |
| CN110206891A (en) * | 2019-07-07 | 2019-09-06 | 南京林业大学 | Split mechanical seal magnetic liquid auxiliary seal ring |
| CN112728105A (en) * | 2020-12-31 | 2021-04-30 | 清华大学 | Magnetic liquid sealing device |
-
2014
- 2014-01-17 CN CN201420031177.3U patent/CN203670800U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763575A (en) * | 2015-02-04 | 2015-07-08 | 浙江大学 | Impeller main shaft sealing device for ocean current energy power generation system |
| CN104879501A (en) * | 2015-04-18 | 2015-09-02 | 中煤张家口煤矿机械有限责任公司 | Sealing method used for reducer of scraper conveyor |
| CN105465374A (en) * | 2016-01-28 | 2016-04-06 | 自贡兆强环保科技股份有限公司 | Oil mist sealing structure of hydraulic generator |
| CN106499824A (en) * | 2017-01-09 | 2017-03-15 | 昆明理工大学 | A kind of reciprocating magnetic liquid self-circulation lubricating sealing device |
| CN108799506A (en) * | 2018-09-03 | 2018-11-13 | 广西科技大学 | A kind of more magnetic source symmetric form device for sealing magnetic fluid |
| CN108799506B (en) * | 2018-09-03 | 2023-05-02 | 广西科技大学 | Multi-magnetic source symmetrical magnetic fluid sealing device |
| CN110206891A (en) * | 2019-07-07 | 2019-09-06 | 南京林业大学 | Split mechanical seal magnetic liquid auxiliary seal ring |
| CN112728105A (en) * | 2020-12-31 | 2021-04-30 | 清华大学 | Magnetic liquid sealing device |
| CN112728105B (en) * | 2020-12-31 | 2022-07-12 | 清华大学 | Magnetic liquid sealing device |
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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: 20140625 Termination date: 20200117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |