CN201050598Y - Mechanical seal - Google Patents
Mechanical seal Download PDFInfo
- Publication number
- CN201050598Y CN201050598Y CNU2007201423117U CN200720142311U CN201050598Y CN 201050598 Y CN201050598 Y CN 201050598Y CN U2007201423117 U CNU2007201423117 U CN U2007201423117U CN 200720142311 U CN200720142311 U CN 200720142311U CN 201050598 Y CN201050598 Y CN 201050598Y
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- CN
- China
- Prior art keywords
- ring
- sealing
- sic
- rotating ring
- purpose machinery
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 210000004907 gland Anatomy 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract description 9
- 230000003068 static effect Effects 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 5
- 239000011343 solid material Substances 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 238000003756 stirring Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
A special mechanical seal can work normally under a medium condition with abrasive solid particles and has a long service life and excellent sealing safety. The mechanical seal comprises a moving ring, a static ring, springs, an auxiliary sealing O-shaped ring, bearings, oil seals, a bushing, and bearing glands, wherein, a friction pair consisting of the moving ring and the static ring has an internal open structure so that the medium leaking direction is opposite to the centrifugal force direction; the moving ring and the static ring adopt hard-hard cooperation of SiC and SiC or SiC and WC to improve the abrasion resistance; the inner diameters and the outer diameters of the moving ring and the static ring are respectively equal, thereby reducing the adsorption of solid particles near the friction pair to cause abrasion; a plurality of springs are arranged inside and separated from the medium, avoiding the phenomenon that the springs become invalid due to obstruction and abrasion of solid materials. Aligning bearing structures are adopted to prevent too large oscillation at the shaft sealing positions.
Description
Technical field
The utility model is a vesselseals, a kind of special-purpose machinery sealing of more specifically saying so.
Background technique
In stirring apparatus, when mechanical seal contacts with material medium in the reactor, with the difference of material characteristic, especially contain the medium of abrasion solid particle in the material, the dynamic and static ring of mechanical seal is easy to wearing and tearing or spring failure and causes mechanical seal to damage and can't proper functioning.
Summary of the invention
The purpose of this utility model is to be to design a kind of special-purpose machinery sealing configuration, can effectively reduce the wearing and tearing of mechanical seal dynamic and static ring and the inefficacy of spring, thereby improves the working life of mechanical seal.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: the friction pair that the rotating ring and the stationary ring of single mechanical end face seal are formed adopts built-in open architecture, be exposed in the medium and contact with material, spring is arranged in inner isolated with medium, has avoided spring to be stopped up by solid material and corrosion and failure phenomenon.The built-in open architecture of this friction pair makes the dielectric leakage direction opposite with the centrifugal force direction, action of centrifugal force has avoided material to assemble near friction pair during the stirring shaft rotation, stoped solid particle to enter the junction plane of rotating ring and stationary ring, thereby reduce the wearing and tearing of rotating ring and stationary ring, stop dielectric leakage.SiC that the material employing PV value of dynamic and static ring is big and SiC or SiC and WC combination are hard to hard friction fit face, strengthen wear resistance.Adopt many springs to make the pressure distribution of seal face even.The external diameter and the internal diameter of rotating ring and stationary ring are consistent, and can reduce that solid particle is adsorbed near the surface friction pair and the wearing and tearing that cause.Excessive for preventing mechanical seal place oscillating quantity, be provided with the selfaligning bearing structure, thereby improve working life.
Another kind design as model utility, on the single mechanical end face seal basis, increased second level end face seal, the first order friction pair that contacts with material adopts built-in open architecture, be exposed in the medium and contact with material, spring is arranged in inner isolated with medium, has avoided spring to be stopped up by solid material and corrosion and failure phenomenon.The built-in open architecture of this abrasive end face makes the dielectric leakage direction opposite with the centrifugal force direction, action of centrifugal force has avoided material to assemble near friction pair during the stirring shaft rotation, stoped solid particle to enter the junction plane of rotating ring and stationary ring, thereby reduce the wearing and tearing of rotating ring and stationary ring, stop dielectric leakage.SiC that the material employing PV value of rotating ring and stationary ring is big and SiC or SiC and WC combination strengthen wear resistance firmly to hard friction fit face.Adopt many springs to make the pressure distribution of seal face even.The external diameter and the internal diameter of rotating ring and stationary ring are consistent, and can reduce that solid particle is adsorbed near the surface friction pair and the wearing and tearing that cause.Excessive for preventing an envelope place oscillating quantity, be provided with the structure of selfaligning bearing, thereby improve working life.In order further to improve the reliability of its sealing; Security and working life; set up second level seal face; the second level friction pair and first friction pair are composed in series the twin-stage mechanical seal structure; after leaking appears in first order friction pair; medium will enter in the lubricated sap cavity; to occur unusual and warning with the matching used compensator liquid level of mechanical seal; this moment, second level end face just just contacted solid particle; can not leak in short time; still can continue operation; need not hard stop, thus reliability and the Security used improved greatly, also increased the working life of mechanical seal.
The beneficial effects of the utility model are normally to use under the ambient condition that the abrasion solid particle is arranged, and the life-span is long, and sealingly secure is good.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a kind of embodiment's schematic representation of special-purpose machinery sealing, is a kind of single end face special-purpose machinery sealing.
Fig. 2 is another embodiment's schematic representation of a kind of special-purpose machinery sealing, is a kind of twin-stage special-purpose machinery sealing.
.1. rotating ring among the figure, 2. stationary ring, 3. pair sealing O type circle, 4. spring, 5. main body, 6. oil sealing, 7. bearing gland, 8. axle sleeve, 9. fastening piece, 10. bearing, 11. flushing chambeies, 12. by an axle O type circle, 13. rotating ring O type circle, 14. stationary seats, 15. outer rotating rings, 16. outer stationary rings, 17. lubricated sap cavities.
Embodiment
In a kind of single end face special-purpose machinery sealing shown in Figure 1, rotating ring (1) adopts built-in open architecture with the friction pair that stationary ring (2) is formed, secondary sealing O type circle (3) seals between stationary ring (2) and main body (5), rotating ring O type circle (13) seals between rotating ring (1) and axle sleeve (8), spring (4) acts on the stationary ring (2) and makes it become compensated loop, oil sealing (6) separates the mounting point of bearing (10) and flushing chamber (11), bearing gland (7) rigid bearing (10), by sealing by axle O type circle (12), fastening piece (9) is fixed on mechanical seal on the axle between the axle that axle sleeve (8) and mechanical seal will be installed.
In a kind of twin-stage special-purpose machinery sealing shown in Figure 2, rotating ring (1) adopts built-in open architecture with the friction pair that stationary ring (2) is formed, secondary sealing O type circle (3) seals between stationary ring (2) and stationary seat (14), rotating ring O type circle (13) seals between rotating ring (1) and axle sleeve (8), spring (4) acts on the stationary ring (2) and makes it become compensated loop, oil sealing (6) is formed bearing chamber with bearing gland (7) and seal case (18) bearing (10) is installed, outer rotating ring (15) is formed second level friction pair with outer rotating ring (16), with first order friction pair and a stationary seat (14) and seal case (a 18) formation lubricated sap cavity (17), by sealing by axle O type circle (12), fastening piece (9) is fixed on mechanical seal on the axle between the axle that axle sleeve (8) and mechanical seal will be installed.
Claims (10)
1. single end face special-purpose machinery sealing, comprise rotating ring, stationary ring, spring, secondary sealing O type circle, bearing, oil sealing, axle sleeve, bearing gland, the friction pair that rotating ring and stationary ring are formed adopts built-in open architecture, it is characterized in that rotating ring and stationary ring employing SiC and SiC or SiC and WC are firmly to hard cooperation.
2. according to the described a kind of single end face special-purpose machinery sealing of claim 1, it is characterized in that the internal diameter of rotating ring and stationary ring and external diameter are designed to equate.
3. according to the described a kind of single end face special-purpose machinery sealing of claim 1, it is characterized in that rotating ring and stationary ring adopt built-in open architecture to contact with medium, the leakage direction is opposite with the centrifugal force direction.
4. according to the described a kind of single end face special-purpose machinery sealing of claim 1, it is inner isolated with medium to it is characterized in that many springs are arranged in.
5. single end face special-purpose machinery sealing according to claim 1 is characterized in that having adopted the selfaligning bearing structure.
6. twin-stage special-purpose machinery sealing, comprise rotating ring, stationary ring, spring, secondary sealing O type circle, bearing, oil sealing, axle sleeve, bearing gland, outer stationary ring, outer rotating ring, seal case, it is characterized in that rotating ring and stationary ring employing SiC and SiC or SiC and WC are firmly to hard cooperation, set up second level seal face simultaneously, the second level friction pair and first friction pair are composed in series the twin-stage mechanical seal structure.
7. according to the described a kind of twin-stage special-purpose machinery sealing of claim 6, it is characterized in that the internal diameter of rotating ring and stationary ring and external diameter are designed to equate.
8. according to the described a kind of twin-stage special-purpose machinery sealing of claim 6, it is characterized in that rotating ring and stationary ring adopt built-in open architecture to contact with medium, the leakage direction is opposite with the centrifugal force direction.
9. according to the described a kind of twin-stage special-purpose machinery sealing of claim 6, it is inner isolated with medium to it is characterized in that many springs are arranged in.
10. twin-stage special-purpose machinery sealing according to claim 6 is characterized in that having adopted the selfaligning bearing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201423117U CN201050598Y (en) | 2007-03-24 | 2007-03-24 | Mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201423117U CN201050598Y (en) | 2007-03-24 | 2007-03-24 | Mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050598Y true CN201050598Y (en) | 2008-04-23 |
Family
ID=39337084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201423117U Expired - Fee Related CN201050598Y (en) | 2007-03-24 | 2007-03-24 | Mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050598Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551015B (en) * | 2009-04-30 | 2011-08-10 | 无锡市宏源弹性器材有限公司 | Full circle-telescopic shafting end surface sealing device used for deep-sea platform |
| CN102694436A (en) * | 2012-06-12 | 2012-09-26 | 中国南方航空工业(集团)有限公司 | Alternating current power generator |
| CN103388679A (en) * | 2013-08-07 | 2013-11-13 | 张家港市中化机械密封件厂 | Machinery seal |
| CN103962027A (en) * | 2014-03-24 | 2014-08-06 | 温州恒丰泰成套设备制造有限公司 | Mechanical stirring device capable of realizing pressure-bearing sealing and lifting |
| CN104455442A (en) * | 2013-09-24 | 2015-03-25 | 上海福思特流体机械有限公司 | Pump seal structure with bearing arranged between double mechanical seals |
| CN105074299A (en) * | 2013-04-04 | 2015-11-18 | 伊格尔博格曼德国有限公司 | Mechanical seal arrangement having sliding surfaces of differing hardness |
| CN106838321A (en) * | 2017-03-13 | 2017-06-13 | 浙江长城搅拌设备股份有限公司 | Kettle side entering type mechanical seal |
| US9694331B2 (en) | 2008-12-17 | 2017-07-04 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Mixer having rotating mixing container |
| CN107524810A (en) * | 2016-06-21 | 2017-12-29 | 辽宁天泽产业集团机械制造有限公司 | A kind of stirrer mechanical seal device |
| CN110274021A (en) * | 2019-06-27 | 2019-09-24 | 福建盛田机械制造有限公司 | A kind of axial seal component |
| CN110440001A (en) * | 2019-08-29 | 2019-11-12 | 浙江工业大学 | A kind of stationary ring replaceable mechanically-sealing apparatus |
-
2007
- 2007-03-24 CN CNU2007201423117U patent/CN201050598Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9694331B2 (en) | 2008-12-17 | 2017-07-04 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Mixer having rotating mixing container |
| CN101551015B (en) * | 2009-04-30 | 2011-08-10 | 无锡市宏源弹性器材有限公司 | Full circle-telescopic shafting end surface sealing device used for deep-sea platform |
| CN102694436B (en) * | 2012-06-12 | 2014-12-24 | 中国南方航空工业(集团)有限公司 | Alternating current power generator |
| CN102694436A (en) * | 2012-06-12 | 2012-09-26 | 中国南方航空工业(集团)有限公司 | Alternating current power generator |
| CN105074299A (en) * | 2013-04-04 | 2015-11-18 | 伊格尔博格曼德国有限公司 | Mechanical seal arrangement having sliding surfaces of differing hardness |
| CN103388679A (en) * | 2013-08-07 | 2013-11-13 | 张家港市中化机械密封件厂 | Machinery seal |
| CN104455442A (en) * | 2013-09-24 | 2015-03-25 | 上海福思特流体机械有限公司 | Pump seal structure with bearing arranged between double mechanical seals |
| CN103962027A (en) * | 2014-03-24 | 2014-08-06 | 温州恒丰泰成套设备制造有限公司 | Mechanical stirring device capable of realizing pressure-bearing sealing and lifting |
| CN103962027B (en) * | 2014-03-24 | 2016-04-20 | 温州恒丰泰成套设备制造有限公司 | Mechanical stirring device capable of realizing pressure-bearing sealing and lifting |
| CN107524810A (en) * | 2016-06-21 | 2017-12-29 | 辽宁天泽产业集团机械制造有限公司 | A kind of stirrer mechanical seal device |
| CN106838321A (en) * | 2017-03-13 | 2017-06-13 | 浙江长城搅拌设备股份有限公司 | Kettle side entering type mechanical seal |
| CN110274021A (en) * | 2019-06-27 | 2019-09-24 | 福建盛田机械制造有限公司 | A kind of axial seal component |
| CN110440001A (en) * | 2019-08-29 | 2019-11-12 | 浙江工业大学 | A kind of stationary ring replaceable mechanically-sealing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Great Wall Reducer Co., Ltd. Assignor: Yu Peiqing Contract fulfillment period: 2008.9.25 to 2017.3.23 Contract record no.: 2008330002793 Denomination of utility model: Mechanical seal Granted publication date: 20080423 License type: Exclusive license Record date: 20081225 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.25 TO 2017.3.23; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE GREAT WALL REDUCER CO., LTD. Effective date: 20081225 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20140324 |