CN101526135A - Labyrinth combined type mechanical sealing device - Google Patents
Labyrinth combined type mechanical sealing device Download PDFInfo
- Publication number
- CN101526135A CN101526135A CN200910011205A CN200910011205A CN101526135A CN 101526135 A CN101526135 A CN 101526135A CN 200910011205 A CN200910011205 A CN 200910011205A CN 200910011205 A CN200910011205 A CN 200910011205A CN 101526135 A CN101526135 A CN 101526135A
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- China
- Prior art keywords
- labyrinth seal
- cover
- seal cover
- labyrinth
- pump
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Abstract
The invention relates to a labyrinth combined type mechanical sealing device. A labyrinth sealing sleeve (6) is arranged in the front end of the mechanic sealing device, i.e., between a shaft hole (51) and a pump shaft (3) of a pump cover 5', the labyrinth sealing sleeve (6) is fixedly arranged on the pump shaft (3), the front half part of the outer ring surface of the labyrinth sealing sleeve (6) is provided with a thread groove (61) which is rotationally matched with a shaft hole (51) of the pump cover to form a screw pump in a sliding mode, and grains in media are pushed out of the shaft hole (51), i.e., the thread groove of the labyrinth sealing sleeve and can not pass through and enter an attrition end surface to prevent the attrition end surface against attrition by the grains.
Description
Technical field
What the present invention relates to is shaft sealer, particularly mechanical seal device.
Background technique
Mechanical seal device is by at least one pair of rotating ring and stationary ring perpendicular to axis, and rotating ring or stationary ring encircle by way of compensation under axial elasticity element (spring) effect and make dynamic and static environmental protection hold the formation that is rotatably assorted of sliding of fitting, and prevent the device that working fluid leaks along running shaft.Mechanical seal device is arranged between body such as pump cover and pump shaft, and rotating ring is connected with axle or axle sleeve, and stationary ring and stationary seat or be connected with gland on the body by stationary seat are finished the rotation axis seal effect by rotating ring and the rotation of stationary ring abrasive end face slide relative.
During mechanical seal device work, need suitable operating mode, need promptly to prevent that the granule foreign in the medium from entering rotating ring and stationary ring abrasive end face, to prevent granule foreign abrasive end face is caused wearing and tearing, otherwise influence the sealing and the working life of mechanical seal device.
The prior art mechanical seal device is the assisting agency of anti-particle not, and the flowing medium in the pump chamber acts directly on the mechanical seal device, and the particle in the medium causes the wearing and tearing of friction side easily.
Summary of the invention
The purpose of this invention is to provide and a kind ofly prevent that the particle in the medium from entering into abrasive end face, prevent that particle in the medium is to the labyrinth combined type mechanical sealing device of abrasive end face wearing and tearing.
The present invention includes at least one pair of rotating ring and stationary ring perpendicular to axis, and rotating ring or stationary ring encircle by way of compensation under axial elasticity element (spring) effect and make, stationary ring keeps fitting sliding and is rotatably assorted, rotating ring is connected with axle or axle sleeve, stationary ring is connected with machine sealed cover on the body, it is characterized in that being provided with the labyrinth seal cover at the axis hole and the between centers of body, the labyrinth seal cover is made of the axle sleeve that is fixedly mounted on the axle, on the first half of the outer ring surface that this labyrinth seal is overlapped, offer thread groove, the outer ring surface of labyrinth seal cover and the axis hole of body slide and are rotatably assorted, thread groove that labyrinth seal puts and axis hole form volute pump, axis hole will be entered in the medium, the particle that promptly enters in the labyrinth seal thread die cutting groove is constantly carried back labyrinth seal cover front end, and the particle in the medium can not be passed through.
The present invention is simple in structure, the thread groove that labyrinth seal puts, can prevent that the particle in the medium from passing through, the mechanical seal device that particle in the medium and dynamic and static ring is slided be rotatably assorted is isolated, can not enter into abrasive end face, prevent that the particle in the medium from causing wearing and tearing to abrasive end face, improved mechanical sealing performance, and prolonged mechanical seal working life.
Description of drawings
Fig. 1 is an embodiment of the invention structural representation.
Embodiment
The present invention includes at least one pair of rotating ring 1 and stationary ring 2 perpendicular to axis, and rotating ring or stationary ring encircle by way of compensation under axial elasticity element (spring) effect and make, stationary ring keeps fitting sliding and is rotatably assorted, rotating ring 1 is connected with axle 3 or axle sleeve, stationary ring 2 is connected with machine sealed cover 4 on the body, axis hole 51 and 3 on axle at body 5 are provided with labyrinth seal cover 6, labyrinth seal cover 6 is fixedly mounted on the axle 3, on the first half of the outer ring surface of this labyrinth seal cover 6, offer thread groove 61, the outer ring surface of labyrinth seal cover 6 and the axis hole of body 51 slide and are rotatably assorted, thread groove 61 on the labyrinth seal cover 6 forms volute pump with body axis hole 51, axis hole will be entered in the medium, the particle that promptly enters in the labyrinth seal thread die cutting groove 61 constantly carries back labyrinth seal to overlap 6 front end, and the particle in the medium can not be passed through.
Shown in accompanying drawing 1 embodiment, be to be used for using on the centrifugal pump, stationary ring 2 is connected with machine sealed cover 4 on the pump cover 5 ', axis hole 51 and 3 of pump shafts at pump cover 5 ' are provided with labyrinth seal cover 6, labyrinth seal cover 6 is fixedly mounted on the pump shaft 3, offer thread groove 61 on the first half of the outer ring surface of this labyrinth seal cover 6, the outer ring surface of labyrinth seal cover 6 slides with the axis hole of pump cover 51 and is rotatably assorted, thread groove 61 on the labyrinth seal cover 6 and pump cover 5 ' axis hole 51 formation volute pumps.
Claims (2)
1, labyrinth combined type mechanical sealing device, comprise at least one pair of rotating ring and stationary ring perpendicular to axis, and rotating ring or stationary ring encircle by way of compensation under the effect of axial elasticity element and make, stationary ring keeps fitting sliding and is rotatably assorted, rotating ring is connected with axle or axle sleeve, stationary ring is connected with machine sealed cover on the body, it is characterized in that: between the axis hole (51) of body (5) and axle (3), be provided with labyrinth seal cover (6), labyrinth seal cover (6) is fixedly mounted on the axle (3), on the first half of the outer ring surface of this labyrinth seal cover (6), offer thread groove (61), the axis hole (51) of the outer ring surface of labyrinth seal cover (6) and body slides and is rotatably assorted, thread groove (61) on the labyrinth seal cover (6) forms volute pump with body axis hole (51), axis hole will be entered in the medium, promptly enter into the front end that the particle transport in the labyrinth seal thread die cutting groove is gone back to labyrinth seal cover (6), the particle in the medium can not be passed through.
2, ask according to power and require 1 described labyrinth combined type mechanical sealing device, it is characterized in that stationary ring (2) is connected with machine sealed cover (4) on the pump cover (5 '), be provided with labyrinth seal cover (6) between the axis hole (51) of pump cover (5 ') and pump shaft (3), labyrinth seal cover (6) is fixedly mounted on the pump shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910011205A CN101526135A (en) | 2009-04-17 | 2009-04-17 | Labyrinth combined type mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910011205A CN101526135A (en) | 2009-04-17 | 2009-04-17 | Labyrinth combined type mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101526135A true CN101526135A (en) | 2009-09-09 |
Family
ID=41094154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910011205A Pending CN101526135A (en) | 2009-04-17 | 2009-04-17 | Labyrinth combined type mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101526135A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619487A (en) * | 2012-04-27 | 2012-08-01 | 西南石油大学 | Vibration-preventing high-temperature-resisting underground moving sealing device |
| CN102678932A (en) * | 2012-04-27 | 2012-09-19 | 大连华阳光大密封有限公司 | Double mechanical seal without accessory system |
| CN103215677A (en) * | 2013-05-07 | 2013-07-24 | 四川理工学院 | Damping vibration attenuation metacentric-type electric spindle centrifugal machine |
| CN103459903A (en) * | 2011-04-08 | 2013-12-18 | 西门子公司 | Shaft seal insert |
| CN103459904A (en) * | 2011-04-08 | 2013-12-18 | 西门子公司 | Shaft seal arrangement |
| CN105879742A (en) * | 2015-01-26 | 2016-08-24 | 建德市全新钙业有限公司 | Stirring device of dedusting digester |
| CN106593938A (en) * | 2016-12-16 | 2017-04-26 | 哈尔滨电气动力装备有限公司 | Mechanical labyrinth seal for nuclear main pump two-way thrust bearing circulating lubricating oil system |
| CN109340168A (en) * | 2018-10-22 | 2019-02-15 | 柳州酸王泵制造股份有限公司 | A kind of threaded single-end face integrated mechanically-sealing apparatus |
| CN112303243A (en) * | 2020-07-31 | 2021-02-02 | 李金伟 | Sealing element with good sealing effect and application thereof |
| CN113561054A (en) * | 2021-07-28 | 2021-10-29 | 北京烁科精微电子装备有限公司 | Polishing pad dressing device and polishing equipment |
| CN114033741A (en) * | 2021-11-17 | 2022-02-11 | 嘉利特荏原泵业有限公司 | Seal cavity structure of high-temperature high-pressure corrosion-resistant abrasion-resistant centrifugal pump |
-
2009
- 2009-04-17 CN CN200910011205A patent/CN101526135A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103459904B (en) * | 2011-04-08 | 2015-10-21 | 西门子公司 | Shaft sealer |
| CN103459903B (en) * | 2011-04-08 | 2015-12-23 | 西门子公司 | shaft seal insert |
| CN103459903A (en) * | 2011-04-08 | 2013-12-18 | 西门子公司 | Shaft seal insert |
| CN103459904A (en) * | 2011-04-08 | 2013-12-18 | 西门子公司 | Shaft seal arrangement |
| CN102619487A (en) * | 2012-04-27 | 2012-08-01 | 西南石油大学 | Vibration-preventing high-temperature-resisting underground moving sealing device |
| CN102678932B (en) * | 2012-04-27 | 2014-09-24 | 大连华阳密封股份有限公司 | Double mechanical seal without accessory system |
| CN102678932A (en) * | 2012-04-27 | 2012-09-19 | 大连华阳光大密封有限公司 | Double mechanical seal without accessory system |
| CN103215677B (en) * | 2013-05-07 | 2016-06-08 | 四川理工学院 | A kind of damping vibration attenuation metancenter formula electricity ingot whizzer |
| CN103215677A (en) * | 2013-05-07 | 2013-07-24 | 四川理工学院 | Damping vibration attenuation metacentric-type electric spindle centrifugal machine |
| CN105879742A (en) * | 2015-01-26 | 2016-08-24 | 建德市全新钙业有限公司 | Stirring device of dedusting digester |
| CN106593938A (en) * | 2016-12-16 | 2017-04-26 | 哈尔滨电气动力装备有限公司 | Mechanical labyrinth seal for nuclear main pump two-way thrust bearing circulating lubricating oil system |
| CN109340168A (en) * | 2018-10-22 | 2019-02-15 | 柳州酸王泵制造股份有限公司 | A kind of threaded single-end face integrated mechanically-sealing apparatus |
| CN112303243A (en) * | 2020-07-31 | 2021-02-02 | 李金伟 | Sealing element with good sealing effect and application thereof |
| CN113561054A (en) * | 2021-07-28 | 2021-10-29 | 北京烁科精微电子装备有限公司 | Polishing pad dressing device and polishing equipment |
| CN114033741A (en) * | 2021-11-17 | 2022-02-11 | 嘉利特荏原泵业有限公司 | Seal cavity structure of high-temperature high-pressure corrosion-resistant abrasion-resistant centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090909 |