CN202707588U - Silicon carbide mechanical seal device for marine pump - Google Patents
Silicon carbide mechanical seal device for marine pump Download PDFInfo
- Publication number
- CN202707588U CN202707588U CN 201220280431 CN201220280431U CN202707588U CN 202707588 U CN202707588 U CN 202707588U CN 201220280431 CN201220280431 CN 201220280431 CN 201220280431 U CN201220280431 U CN 201220280431U CN 202707588 U CN202707588 U CN 202707588U
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- CN
- China
- Prior art keywords
- ring
- moving
- corrugated pipe
- sealing
- silicon carbide
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- Expired - Fee Related
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Abstract
The utility model relates to the field of mechanical seal, and discloses a silicon carbide mechanical seal device for a marine pump. The silicon carbide mechanical seal device comprises a pump body, a sealing static ring and a sealing moving ring which are circumferentially fixed on the pump body, and a rubber corrugated pipe, a moving ring sleeve, a spring seat and springs which are tightly matched on a rotating shaft, wherein the spring seat is sleeved on the outer circumference of the rubber corrugated pipe, the rubber corrugated pipe and the sealing moving ring have a press fit through the spring, the sealing moving ring and the rubber corrugated pipe are tightly arranged in the moving ring sleeve, the sealing moving ring and the sealing static ring have a press fit manner through the spring, and a sealing ring is arranged between the sealing moving ring and the moving ring sleeve. The silicon carbide mechanical seal device, provided by the utility model, is suitable for long-time operation, and has the advantages of larger pressure change of the pump cavity, and good sealing property and reliability during vibration of the pump body.
Description
Technical field
The utility model relates to the mechanical sealing technology field, especially a kind of marine pump mechanical sealing device of silicon carbide.
Background technique
At present, along with the increasing of country to the ocean development dynamics, the use of marine product is more and more, and improve the reliability of marine product especially sealing is significant for this reason.Common existing marine pump is provided with mechanical sealing device of silicon carbide, mechanical sealing device of silicon carbide comprises stationary seal ring, moving sealing ring, rubber corrugated pipe, spring seat, spring and moving ring sleeve, stationary seal ring circumferentially is fixed on the pump housing, spring seat makes itself and axle tight fit connection by compressing rubber corrugated pipe, moving sealing ring is pressed in the moving ring sleeve, and is force-fitted on the stationary seal ring by the spring on the spring seat.
There is following shortcoming in the marine pump mechanical sealing device of silicon carbide of this kind structure: because the marine pump long-play, add that the pressure in the pump chamber changes greatly, pump housing vibration is larger, external agency can be penetrated between moving ring sleeve and the moving sealing ring, and then the end of arrival rubber corrugated pipe, make the end of rubber corrugated pipe by dielectric corrosion, after the rubber corrugated tube end is corroded, reveal herein easily, cause seal failure.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of adaptation long-play is provided, and pump chamber pressure changes greatly, during pump housing vibration, and the marine pump mechanical sealing device of silicon carbide of sealability and good reliability.
Technical solution adopted in the utility model is: a kind of marine pump mechanical sealing device of silicon carbide is provided, comprise the pump housing, circumferentially be fixed on the stationary seal ring on the pump housing, moving sealing ring, the rubber corrugated pipe of close-fitting on rotatingshaft, moving ring sleeve, spring seat and spring, described spring socket sleeve is connected on the rubber corrugated pipe excircle, described rubber corrugated pipe is force-fitted on the moving sealing ring by spring, the equal close-fitting of described moving sealing ring and rubber corrugated pipe is in moving ring sleeve, described moving sealing ring is force-fitted on the stationary seal ring by spring, is provided with seal ring between described moving sealing ring and the moving ring sleeve.
After adopting above structure, the utility model marine pump mechanical sealing device of silicon carbide is compared with existing technology, following advantage is arranged: owing between moving sealing ring and moving ring sleeve, be provided with seal ring, pressure in pump chamber changes greatly, during pump housing vibration, the seal action of sealing circle can stop external agency to be penetrated into the press fit face of moving sealing ring and rubber corrugated pipe, avoid the rubber corrugated end surfaces to be corroded, thereby guaranteed sealability, again because seal ring has certain elasticity, when pump chamber pressure changes greatly, during pump housing vibration, have certain buffering between moving sealing ring and the seal ring, make moving sealing ring can not produce because running into moving ring sleeve angle or the cracked situation of collapsing, improve the reliability of sealing device.
As improvement, be provided with rubber pad between described stationary seal ring and the pump housing, the circumferential and pump housing close-fitting of rubber pad, circumferential and the rubber pad close-fitting of stationary seal ring, stationary seal ring is fixed by rubber pad and the pump housing, and rubber pad can absorb the vibration that the pump housing causes, avoids stationary seal ring to come off.
Description of drawings
Accompanying drawing is the structural representation of the utility model marine pump mechanical sealing device of silicon carbide.
Among the figure, 1, the pump housing, 2, rubber pad, 3, stationary seal ring, 4, moving sealing ring, 5, seal ring, 6, moving ring sleeve, 7, rubber corrugated pipe, 8, spring, 9, spring seat, 10, rotatingshaft.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in drawings, the utility model marine pump mechanical sealing device of silicon carbide, comprise the pump housing 1, circumferentially be fixed on the stationary seal ring 3 on the pump housing 1, moving sealing ring 4, the rubber corrugated pipe 7 of close-fitting on rotatingshaft 10, moving ring sleeve 6, spring seat 9 and spring 8, stationary seal ring 3 is fixing by rubber pad 2 and the pump housing 1, that is to say the rubber pad 2 circumferential and pump housing 1 close-fittings, stationary seal ring 3 circumferential and rubber pad 2 close-fittings, rubber corrugated pipe 7 is interference fitted on the rotatingshaft 10 by the compression that is located at its excircle upper spring seat 9, one end of rubber corrugated pipe 7 is force-fitted on the moving sealing ring 4 by the spring 8 that is located on the spring seat 9, moving sealing ring 4 and rubber corrugated pipe 7 equal close-fittings are in moving ring sleeve 6, namely moving sealing ring 4 and rubber corrugated pipe 7 are pressed in the moving ring sleeve 6 by plunging, moving ring sleeve 6 makes rubber corrugated pipe 7 be connected connection with moving sealing ring, moving sealing ring 4 is force-fitted on the stationary seal ring 3 by spring 8 and rubber corrugated pipe 7, namely spring 8 one ends and rubber corrugated pipe 7 compress, rubber corrugated pipe 7 and moving sealing ring 4 compress, be provided with seal ring 5 between moving sealing ring 4 and the moving ring sleeve 6, namely in the axial direction, 6 of moving sealing ring 4 and moving ring sleeves are provided with seal ring 5, seal ring 5 both sides respectively with moving ring sleeve 6 and moving sealing ring 4 interference fit.
During the utility model work, rotatingshaft 10 rotations, and then rotation of rubber corrugated pipe 7 on the rotatingshaft 10, drive fit by moving ring sleeve 6 and rubber corrugated pipe 7 and moving sealing ring 4, driving moving sealing ring 4 rotates, by the elastic force of spring 8 and stretching of rubber corrugated pipe 7, keep being close to of moving sealing ring 4 and stationary seal ring 3.
Claims (2)
1. marine pump mechanical sealing device of silicon carbide, comprise the pump housing (1), circumferentially be fixed on the stationary seal ring (3) on the pump housing (1), moving sealing ring (4), the rubber corrugated pipe (7) of close-fitting on rotatingshaft (10), moving ring sleeve (6), spring seat (9) and spring (8), described spring seat (9) is socketed on rubber corrugated pipe (7) excircle, described rubber corrugated pipe (7) is force-fitted on the moving sealing ring (4) by spring (8), the equal close-fitting of described moving sealing ring (4) and rubber corrugated pipe (7) is in moving ring sleeve (6), described moving sealing ring (4) is force-fitted on the stationary seal ring (3) by spring (8), it is characterized in that: be provided with seal ring (5) between described moving sealing ring (4) and the moving ring sleeve (6).
2. marine pump mechanical sealing device of silicon carbide according to claim 1, it is characterized in that: be provided with rubber pad (2) between described stationary seal ring (3) and the pump housing (1), circumferential and the pump housing (1) close-fitting of rubber pad (2), circumferential and rubber pad (2) close-fitting of stationary seal ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220280431 CN202707588U (en) | 2012-06-14 | 2012-06-14 | Silicon carbide mechanical seal device for marine pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220280431 CN202707588U (en) | 2012-06-14 | 2012-06-14 | Silicon carbide mechanical seal device for marine pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707588U true CN202707588U (en) | 2013-01-30 |
Family
ID=47587895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220280431 Expired - Fee Related CN202707588U (en) | 2012-06-14 | 2012-06-14 | Silicon carbide mechanical seal device for marine pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707588U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033416A (en) * | 2014-04-28 | 2014-09-10 | 宁波东联密封件有限公司 | Mechanical sealing device |
| CN104455449A (en) * | 2014-10-30 | 2015-03-25 | 大丰市海纳机械有限公司 | Water pump sealing device |
| CN108980356A (en) * | 2018-09-19 | 2018-12-11 | 龙口矿业集团有限公司 | The mechanically-sealing apparatus of cryogenic liquid pump |
| CN111664113A (en) * | 2020-06-18 | 2020-09-15 | 南京千里行测控技术有限公司 | Environment-friendly centrifugal blower body sealing device |
-
2012
- 2012-06-14 CN CN 201220280431 patent/CN202707588U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033416A (en) * | 2014-04-28 | 2014-09-10 | 宁波东联密封件有限公司 | Mechanical sealing device |
| CN104033416B (en) * | 2014-04-28 | 2016-08-24 | 宁波东联密封件有限公司 | A kind of mechanically-sealing apparatus |
| CN104455449A (en) * | 2014-10-30 | 2015-03-25 | 大丰市海纳机械有限公司 | Water pump sealing device |
| CN108980356A (en) * | 2018-09-19 | 2018-12-11 | 龙口矿业集团有限公司 | The mechanically-sealing apparatus of cryogenic liquid pump |
| CN111664113A (en) * | 2020-06-18 | 2020-09-15 | 南京千里行测控技术有限公司 | Environment-friendly centrifugal blower body sealing device |
| CN111664113B (en) * | 2020-06-18 | 2022-06-10 | 南京千里行测控技术有限公司 | Environment-friendly centrifugal blower body 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: 20130130 Termination date: 20140614 |
|
| EXPY | Termination of patent right or utility model |