CN2639573Y - Improved axle seal for pump - Google Patents
Improved axle seal for pump Download PDFInfo
- Publication number
- CN2639573Y CN2639573Y CN 03277534 CN03277534U CN2639573Y CN 2639573 Y CN2639573 Y CN 2639573Y CN 03277534 CN03277534 CN 03277534 CN 03277534 U CN03277534 U CN 03277534U CN 2639573 Y CN2639573 Y CN 2639573Y
- Authority
- CN
- China
- Prior art keywords
- lip
- sealing
- heat dissipation
- cooling
- pump
- 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
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to an improvement to the shaft gland used in a pump, which is characterized in that: a lip-shaped flexible seal packing ring component is additionally provided with a heat dissipation ring and/or a cooling fan blowing inward at the outer flank thereof which is rotated along with a shaft, the heat dissipation effect is enhanced through the heat dissipation ring and/or the cooling fan blowing inward which is rotated along with the shaft and the accelerated cooling of the lip-shaped auxiliary shaft gland, more particularly the combination of both. Moreover, the utility model adopts a coaxial structure, which ensures reliable heat dissipation and avoids the ineffectiveness of heat dissipation. The lip-shaped auxiliary shaft gland made of fluorine rubber enhances the heat preservation of the lip. The shaft gland provided in the utility model is more particularly suitable for the sealing of the rotor axis of a slurry pump.
Description
Technical field
Model utility is about the improvement to the pump shaft sealing, relates in particular to the improvement that the shurry pump of carrying slip is used shaft sealing.
Background technique
The lip seal with elastometic washer is because simple in structure, and low-pressure delivery clear liquid or low density slip have the better seal performance, and working life is also longer relatively, because the friction resistance is little, power consumpiton is little, and keeps in repair easyly, thereby is usually used in the rotating shaft sealing of hydrodynamic seal such as pump.Usually lip seal is made up of as Fig. 1 main lip seal and secondary lip seal, mainly auxiliary main lip seal after parking of the sealing when the pump running is mainly born in main lip circle sealing, secondary lip seal, the sealing after guaranteeing to stop.The major defect of lip seal is: inboard primary seal is owing to there is conveyance fluid cooling in the pump, temperature rise is difficult for raising, and the secondary sealing in the outside is not owing to there is other cooling system, dry friction produces heat and can not get effective cooling, the seal lip temperature is higher, can cause sealing heating, distortion, surface texturing, and then produce the adhesiveness wearing and tearing, so secondary seal lip is very easily damaged and was lost efficacy.Not only shortened the sealing whole service life; And can cause the back of stopping to produce leakage because of losing negative pressure in the pump chamber.
In order to solve the secondary sealing of lip dry friction generation temperature rise, the someone proposes to adopt and adds the cooling water circulation, takes over 13 as Fig. 2 at pair sealing outside increase cooling water ring 12 and recirculated cooling water, by adding circulation of fluid to pair sealing cooling, to prolong its working life.Yet this kind adds the circulation of fluid cooling, though solved the cooling of secondary sealing, but cooling water recirculation system must be set separately, use very inconvenient, and when pump machine degree of suction vacu um is high, cooling water also might be inhaled into pump machine inside, thereby influence conveying material purity, if dehydration once in a while, cooling system lost efficacy, still can cause secondary sealing heating to burn out poor reliability; Cooling water waste water resource not only besides, and produce secondary pollution.
Summary of the invention
The purpose of model utility is to overcome the deficiency of above-mentioned prior art; provide a kind of without cooling water; can guarantee that still pair is sealed with the effect that cools preferably; and good reliability; can reduce the black box operating temperature; the effectively secondary sealing of protection prolongs the pump shaft sealing in working life of secondary seal lip.
The model utility purpose realizes; the main improvement is then to increase but fan of the cooling ring that rotates with axle and/or interior blast-cold outside the lip flexible seal ring; secondary sealing and the heat that the axle sleeve dry friction produces are dispersed in the atmosphere by the bigger heat diffusion area of cooling ring; or by interior blast-cold but fan cooled off; thereby reach pair sealing cooling cooling, protection seal lip.Specifically, model utility pump shaft sealing comprises rotating shaft and is sheathed on the lip flexible sealing coil assembly of rotating shaft periphery, it is characterized in that said lip flexible sealing coil assembly then has but fan of the cooling ring that rotates with axle and/or interior blast-cold outward.
For increasing the heat diffusion area of cooling ring, there is the radiating fin that increases heat diffusion area on the said cooling ring of model utility surface.For improving secondary seal lip heatproof characteristic, fluorine rubber and the good teflon lip-type packing of heat resistance are better adopted in the secondary sealing of model utility lip.The said interior blast-cold of model utility is fan but, is meant and rotates after wind shaft sealing to the inside.
The sealing of model utility pump shaft, owing to set up but fan of cooling ring and/or interior blast-cold in the lip-type packing outside, not only increased heat diffusion area greatly, the heat that secondary sealing friction is produced can be dispersed by cooling ring, the wind cooling temperature lowering of interior blowing fan, also can help to quicken heat radiation, especially both combinations have improved radiating effect especially.Coaxial mounted cooling ring and interior blowing fan have been guaranteed the reliability of dispelling the heat, and heat radiation can not occur and lose efficacy, the temperature tolerance of the teflon lip that fluorine rubber and heat resistance are good secondary sealing the raising especially lip.Model utility has not only been saved cooling water than prior art, and simple installation, stops not leak, and sealing reliability is good, long service life, and the model utility shaft sealing is specially adapted to the rotating shaft sealing of shurry pump.
Below in conjunction with three specific embodiments, further specify the model utility design.
Description of drawings
Fig. 1 is the prior art structural representation.
Fig. 2 is a prior art band water-cooling structure schematic representation.
Fig. 3 is the first example structure schematic representation.
Fig. 4 is the second example structure schematic representation.
Fig. 5 is the 3rd example structure schematic representation.
Embodiment
Embodiment 1: referring to Fig. 3, lip seal configuration routinely, radially be arranged with seal ring baffle ring 2 successively at rotating shaft 11 external axle sleeves 1, sealing case 3, rubber lip primary seal circle 4, teflon lip secondary seal ring 5, sealing lid 6 and the anti-hold-down ring 7 that revolves, the cooling ring 8 of secondary sealing outside band radiating fin, interior blowing fan 9 prevents the hold-down ring 10 that rotates.
Embodiment 2: referring to Fig. 4, as embodiment 1, omit cooling ring, blowing fan 9 in being arranged at intervals with.
Embodiment 3: referring to Fig. 5, as embodiment 1, also can omit interior blowing fan, and use cooling ring 8 separately.
The model utility embodiment, it is described to be not limited to the foregoing description, and some unsubstantialities that model utility is done are changed; as several roads lip-type seal circle is set; and major and minor lip seal is with incorgruous installation, and the structural type of cooling ring, fan etc. are still truely used novel protected scope.
Claims (3)
1, a kind of pump shaft sealing comprises rotating shaft and is sheathed on the lip flexible sealing coil assembly of rotating shaft periphery, it is characterized in that said lip flexible sealing coil assembly then has but fan of the cooling ring that rotates with axle and/or interior blast-cold outward.
2, according to the described pump shaft sealing of claim 1, it is characterized in that there is the radiating fin that increases heat diffusion area on said cooling ring surface.
3, according to claim 1 or 2 described pump shaft sealings, the secondary seal ring that it is characterized in that said lip flexible sealing is fluorine rubber or teflon lip circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277534 CN2639573Y (en) | 2003-08-08 | 2003-08-08 | Improved axle seal for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277534 CN2639573Y (en) | 2003-08-08 | 2003-08-08 | Improved axle seal for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2639573Y true CN2639573Y (en) | 2004-09-08 |
Family
ID=34302865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277534 Expired - Fee Related CN2639573Y (en) | 2003-08-08 | 2003-08-08 | Improved axle seal for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2639573Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839940A (en) * | 2011-06-23 | 2012-12-26 | 中国石油天然气股份有限公司 | Rotator for cementing well at top of horizontal well screen pipe |
| CN106762845A (en) * | 2016-11-24 | 2017-05-31 | 沈阳透平机械股份有限公司 | The method that water filling seal and compression machine water injection system change nozzle online |
-
2003
- 2003-08-08 CN CN 03277534 patent/CN2639573Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839940A (en) * | 2011-06-23 | 2012-12-26 | 中国石油天然气股份有限公司 | Rotator for cementing well at top of horizontal well screen pipe |
| CN102839940B (en) * | 2011-06-23 | 2016-02-10 | 中国石油天然气股份有限公司 | A kind of top cementing of horizontal well sieve tube well cementation circulator |
| CN106762845A (en) * | 2016-11-24 | 2017-05-31 | 沈阳透平机械股份有限公司 | The method that water filling seal and compression machine water injection system change nozzle online |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |