CN203476784U - Sealing ring with improved structure - Google Patents
Sealing ring with improved structure Download PDFInfo
- Publication number
- CN203476784U CN203476784U CN201320287480.5U CN201320287480U CN203476784U CN 203476784 U CN203476784 U CN 203476784U CN 201320287480 U CN201320287480 U CN 201320287480U CN 203476784 U CN203476784 U CN 203476784U
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- CN
- China
- Prior art keywords
- seal ring
- friction
- sealing ring
- impeller
- thrust ball
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to sealing rings with improved structures. The sealing rings comprise sealing ring bodies, inclined grooves and thrust balls. A plurality of blind holes are uniformly disposed in an inner circumferential end face of a sealing ring friction pair and are internally provided with the thrust balls, the rolling friction is realized by the thrust balls, and thus the conventional friction surface contact is changed into point and line contact, thereby greatly reducing frictional resistance, reducing heat generated by friction and prolonging service life of the sealing ring. A plurality of inclined grooves are disposed in an outer circumferential end face of a sealing ring friction pair, the inclined grooves rotate along with an impeller, and thus a backflow liquid form the exit of the impeller obtains a centrifugal force and is tossed out along the inclined grooves, thereby effectively preventing internal leakage of a magnetic drive pump, timely emitting the heat generation by friction, reducing the magnetic drive pump of the sealing ring, and raising working efficiency of the magnetic drive pump.
Description
Technical field
The utility model designs a kind of seal ring, and the seal ring of a kind of low-frictional force characteristic and low leakage characteristics particularly belongs to the shaft sealing field of fluid machinery.
Background technique
The suction port that the highly pressurised liquid flowing out from impeller is got back to again impeller by impeller and the gap between fixed pump shell of rotation, is called internal leakage.In order to reduce internal leakage, protection pump case is equipped with dismountable seal ring on the housing corresponding with impeller eye place.After seal wears, axial clearance is increased, the lifting rate of pump reduces, pump work Efficiency Decreasing, and when gap surpasses certain value, magnetic drive pump is without working efficiency.
Seal ring in the course of the work, except bearing the factors such as working temperature, pressure, corrosion, also need to bear the temperature producing because of friction due to seal ring friction pair end face simultaneously, thereby aggravated the wearing and tearing of seal ring friction pair end face, and then affect sealing effect and the working life of seal ring.Increase the width of the friction pair end face of seal ring, can increase the intensity of friction pair end face, mitigate wear, but can increase face pressure, increase surface friction drag and frictional heat simultaneously; Reduce the width of the degree of friction end face of seal ring, can reduce surface friction drag and reduce frictional heat, but can reduce the intensity of seal ring friction pair, unstable wear, affects sealing effect and the working life of seal ring.
Summary of the invention
The problem that is difficult to overcome in order to solve above-mentioned prior art, the utility model provides a kind of seal ring of architecture advances, and sealing ring has low-frictional force characteristic and low leakage characteristics.
The utility model in order to solve the problems of the technologies described above adopted technological scheme is: a kind of seal ring of architecture advances, comprise seal ring A, seal ring B, valley gutter 11, thrust ball 12, described seal ring A is placed in the groove 7 of outer snail body wall 1 and the groove 6 of interior snail body wall 2.
As further improvement of the utility model, described seal ring A evenly has a plurality of blind holes at seal ring A friction pair inner circumference end face 8, places thrust ball 12 in blind hole.
As further improvement of the utility model, described thrust ball 12 is gas Pressure Sintered Silicon Nitride thrust ball.
As further improvement of the utility model, described seal ring A coordinates installation with spring assembly, and described spring assembly is arranged on the rear portion of the groove 7 of outer snail body wall 1 and the groove 6 of interior snail body wall 2.
As further improvement of the utility model, described spring assembly selects friction factor little, the composite high-molecular material of corrosion resistance and good.
As further improvement of the utility model, described seal ring B is placed in the collar extension groove 4 of impeller 3 and the internal orifice groove 5 of impeller 3, at seal ring B friction pair excircle end face 13, evenly has a plurality of valley gutters 11, and described valley gutter 11 grooveds are triangle, this grooved technique is simple, easily realizes.
As further improvement of the utility model, 0～90 ° of described valley gutter 11 included angle scope, fluting direction is consistent with the direction blade of impeller 3.
As further improvement of the utility model, described seal ring A the selection of material is composite high-molecular material, and described seal ring B the selection of material is a kind of in silicon carbide, silicon nitride and composite high-molecular material.The material wear-resistant of selecting, corrosion resistant, heatproof, comprehensive mechanical performance are good.
The beneficial effects of the utility model are: used the seal ring of thrust ball 12, reduced surface friction drag, reduced friction producing heat, extended the working life of seal ring.When impeller 3 rotates with pump shaft, seal ring B is with impeller 3 rotations, the liquid refluxing from impeller 3 outlets is because of valley gutter 11 rotation acquisition centrifugal force, and be thrown out of along valley gutter 11, effectively prevented " internal leakage " of magnetic drive pump, simultaneously after seal ring A, B friction pair excircle end face are because of sliding friction generation temperature, heat can distribute in time by valley gutter, reduce the degree of wear of seal ring, thereby increased the sealing effect of seal ring, increase the service life.Because surface friction drag reduces, " internal leakage " reduces, and improved the working efficiency of magnetic drive pump.
Accompanying drawing explanation
Fig. 1 is position view of the present utility model
Fig. 2 is seal ring A structural representation
Fig. 3 is seal ring B structural representation
Embodiment
Embodiment: a kind of seal ring of architecture advances, comprise seal ring A, seal ring B, valley gutter 11, thrust ball 12, described seal ring A is placed in the groove 7 of outer snail body wall 1 and the groove 6 of interior snail body wall 2, described seal ring A evenly has a plurality of blind holes at seal ring A friction pair inner circumference end face 8, in described blind hole, place thrust ball 12, thrust ball 12 diameters are consistent with blind hole depth, by thrust ball 12, realize seal ring A, rolling friction between B friction pair inner circumference end face, by original face contact, changing Points And lines into contacts, greatly reduced surface friction drag, reduce friction producing heat, extended the working life of seal ring.
Described thrust ball 12 is gas Pressure Sintered Silicon Nitride thrust ball, thrust ball 12 corrosion resistants of this kind of materials for support, wear-resisting property are good, the more important thing is that its cold-hot impact, self lubricity and comprehensive mechanical performance are good especially, not fragile, guarantee that thrust ball 12 can be used for a long time.
Described seal ring A coordinates installation with spring assembly, described spring assembly is arranged on the rear portion of the groove 7 of outer snail body wall 1 and the groove 6 of interior snail body wall 2, and the elastic reaction of described spring assembly makes seal ring A and seal ring B close contact, guarantees good sealability.
Described spring assembly selects friction factor little, the composite high-molecular material of corrosion resistance and good.
Described seal ring B is placed in the collar extension groove 4 of impeller 3 and the internal orifice groove 5 of impeller 3, at seal ring B friction pair excircle end face 13, evenly has a plurality of valley gutters 11, and described valley gutter 11 grooveds are triangle, and this grooved technique is simple, easily realizes.
0～90 ° of described valley gutter 11 included angle scope, fluting direction is consistent with the direction blade of impeller 3, when impeller 3 rotates with pump shaft, seal ring B is also with impeller 3 rotations, the liquid refluxing from impeller 3 outlets is because of valley gutter 11 rotation acquisition centrifugal force, and be thrown out of along valley gutter 11, effectively prevented " internal leakage " of magnetic drive pump, simultaneously as seal ring A, B friction pair excircle end face produces after temperature because of sliding friction, heat can distribute in time by valley gutter, reduce the degree of wear of seal ring, thereby increased the sealing effect of seal ring, increase the service life.
Above-described embodiment is only explanation technical conceive of the present utility model and feature; its object is to allow person skilled in the art can understand content of the present invention and be implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (5)
1. the seal ring of an architecture advances, comprise seal ring A, seal ring B, valley gutter (11), thrust ball (12), is characterized in that: described seal ring A is placed in outer snail body wall chase (7) and interior snail body wall chase (6), and described seal ring A evenly has a plurality of blind holes at seal ring A friction pair inner circumference end face (8), in described blind hole, place thrust ball (12), thrust ball (12) diameter is consistent with blind hole depth.
2. seal ring according to claim 1, is characterized in that: described thrust ball (12) is gas Pressure Sintered Silicon Nitride thrust ball.
3. seal ring according to claim 1, it is characterized in that: described seal ring A coordinates installation with spring assembly, described spring assembly is arranged on the rear portion of outer snail body wall chase (7) and interior snail body wall chase (6), the elastic reaction of described spring assembly makes seal ring A and seal ring B close contact, described spring assembly selects friction factor little, the composite high-molecular material of corrosion resistance and good.
4. seal ring according to claim 1, it is characterized in that: described seal ring B is placed in impeller outer choma (4) and impeller inner wear ring (5), at seal ring B friction pair excircle end face (9), evenly have a plurality of valley gutters (11), described valley gutter (11) is triangle.
5. seal ring according to claim 1, is characterized in that: 0～90 ° of described valley gutter (11) included angle scope, fluting direction is consistent with impeller blade direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320287480.5U CN203476784U (en) | 2013-05-24 | 2013-05-24 | Sealing ring with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320287480.5U CN203476784U (en) | 2013-05-24 | 2013-05-24 | Sealing ring with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476784U true CN203476784U (en) | 2014-03-12 |
Family
ID=50225122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320287480.5U Withdrawn - After Issue CN203476784U (en) | 2013-05-24 | 2013-05-24 | Sealing ring with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476784U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179719A (en) * | 2013-05-28 | 2014-12-03 | 高涵文 | Structure-improved sealing ring |
| CN104179718A (en) * | 2013-05-24 | 2014-12-03 | 高涵文 | Sealing ring with improved structure |
| CN105020147A (en) * | 2014-04-15 | 2015-11-04 | 高涵文 | Nearly-zero inner leakage stainless steel magnetic drive pump |
| CN105020145A (en) * | 2014-04-15 | 2015-11-04 | 高涵文 | Anti-dry grinding fluoroplastic magnetic drive pump |
| CN105020166A (en) * | 2014-04-15 | 2015-11-04 | 高涵文 | Nearly-zero inner leakage fluoroplastic magnetic drive pump |
| CN109072935A (en) * | 2016-05-04 | 2018-12-21 | Ksb 股份公司 | Centrifugal pump with the device for being sealed |
| CN105987006B (en) * | 2015-02-04 | 2019-03-26 | 昆山江津长抗干磨磁力泵有限公司 | A kind of magnetic force middle-opening pump of corrosion-resistant anti-dry grinding |
| CN113107894A (en) * | 2021-04-27 | 2021-07-13 | 江苏大学 | Centrifugal pump seal mouth ring with double adjustable spin |
-
2013
- 2013-05-24 CN CN201320287480.5U patent/CN203476784U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179718A (en) * | 2013-05-24 | 2014-12-03 | 高涵文 | Sealing ring with improved structure |
| CN104179719A (en) * | 2013-05-28 | 2014-12-03 | 高涵文 | Structure-improved sealing ring |
| CN105020147A (en) * | 2014-04-15 | 2015-11-04 | 高涵文 | Nearly-zero inner leakage stainless steel magnetic drive pump |
| CN105020145A (en) * | 2014-04-15 | 2015-11-04 | 高涵文 | Anti-dry grinding fluoroplastic magnetic drive pump |
| CN105020166A (en) * | 2014-04-15 | 2015-11-04 | 高涵文 | Nearly-zero inner leakage fluoroplastic magnetic drive pump |
| CN105987006B (en) * | 2015-02-04 | 2019-03-26 | 昆山江津长抗干磨磁力泵有限公司 | A kind of magnetic force middle-opening pump of corrosion-resistant anti-dry grinding |
| CN109072935A (en) * | 2016-05-04 | 2018-12-21 | Ksb 股份公司 | Centrifugal pump with the device for being sealed |
| US11619238B2 (en) | 2016-05-04 | 2023-04-04 | KSB SE & Co. KGaA | Centrifugal pump having an arrangement for sealing |
| CN113107894A (en) * | 2021-04-27 | 2021-07-13 | 江苏大学 | Centrifugal pump seal mouth ring with double adjustable spin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20170517 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20170517 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |