CN103133696A - Dynamic pressure mechanical sealing ring for automatically draining particle type fluids - Google Patents
Dynamic pressure mechanical sealing ring for automatically draining particle type fluids Download PDFInfo
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- CN103133696A CN103133696A CN2013100563793A CN201310056379A CN103133696A CN 103133696 A CN103133696 A CN 103133696A CN 2013100563793 A CN2013100563793 A CN 2013100563793A CN 201310056379 A CN201310056379 A CN 201310056379A CN 103133696 A CN103133696 A CN 103133696A
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Abstract
The invention relates to a dynamic pressure mechanical sealing ring for automatically draining particle type fluids. The dynamic pressure mechanical sealing ring is a mechanical seal moving ring, and a micron-sized particle retaining groove, a micron-sized dynamic pressure groove, a millimeter-sized particle storage groove and a millimeter-sized particle draining hole are arranged on the end surface of the mechanical sealing ring. The particle retaining groove can prevent solid particles from being inhaled, the dynamic pressure groove plays a role in fluid pumping effects and dynamic pressure effects, the particle storage groove plays a role in temporarily storing solid particles, and the particle draining hole can drain solid particles stored in the particle storage groove into sealing media. The sealing ring is convenient to process and capable of reducing leak of mechanical seal, greatly improving lubricating performances, and effectively draining the solid particles which are inhaled to the sealing end surface so as to reduce abrasive wear.
Description
Technical field
The present invention relates to the fluid machinery sealing technique, specifically a kind of automatic excretion granular pattern hydrodynamic mechanical seal ring.
Background technique
In the prior art, reveal for the lubricating status and the minimizing that improve seal face in mechanical seal, the various special machines sealings that utilize fluid active and static pressure effect and pumping effect occurred, comprising dry gas seals and upstream pumping mechanical seal.Dry gas seals is to offer fluid dynamic pressure groove at moving sealing ring section outside diameter, and during the rotating ring rotation, fluid dynamic pressure groove pumps into the very thin one deck air film of formation between seal face to the gas of outside diameter, thereby makes seal operation under contactless state; Upstream pumping mechanical seal is to offer fluid dynamic pressure groove at moving sealing ring section internal side diameter, and during the rotating ring rotation, fluid dynamic pressure groove is pumped to the high pressure side, upstream with low voltage side leak liquid or buffering liquid.The dynamic pressure grooved of two kinds of mechanical seal seal faces mostly is spiral line type, circular arc line style, straight line type, T font, chevron shaped.
Dry gas seals and on have pumping machine sealing can produce the stable air film of one deck or liquid film, reduce greatly and resolve surface wear and leakage.But, this class non-contact mechanical seal is easy between the solid particle suction seal end face in sealing gas, leak liquid or low pressure buffer liquid and can not in time get rid of, make between the sealing friction pair end face and produce abrasive wear, cause sealing early failue and the purpose of design that do not reach expection.Although can adopt in engineering is used measure such as filtrations grade sealing gas, leak liquid or low pressure buffer liquid in diameter remove greater than the solid particle of 10um (even 5pm), but still can not prevent between the solid particle suction seal end face of diameter less than 10um (5um), so the abrasive wear between seal face is difficult to avoid.
In recent years, cause the problem of abrasive wear because sucking solid particle for improving this type of mechanical seal, several end face Transform Type design occurred.Chinese patent 101701585 A have announced a kind of mechanical sealing ring for automatic two-way pumping, it can simplify the structure of mechanical seal, reduce the mechanical seal seal face and directly contact the friction and wear degree that causes, extend the working life of Sealing, reduced the cost of seal arrangement, and can bidirectional rotation, but, cause that aspect abrasive wear, the sealing ring does not embody the mechanism of despumation, can not well illustrate and address this problem avoiding solid particle to be drawn into seal face; Chinese patent 2534428Y has announced a kind of single-row cross fluid dynamic pressure tank upstream pumping mechanical seal, has good moment unlatching ability and in time gets rid of the solid particle ability, and still, this mechanical seal can not effectively prevent the suction of solid particle; The mechanical seal that Chinese patent 2534429Y and Chinese patent 00239202.X announce can not effectively prevent the suction of solid particle equally;
Summary of the invention
Purpose of the present invention is exactly to make up the deficiency on prior art and the automatic excretion granular pattern hydrodynamic mechanical seal ring of a kind of effective minimizing seal ring end face abrasive wear of proposing.The use of sealing ring can reduce the leakage of mechanical seal, greatly improves its greasy property, lowers abrasive wear thereby effectively drain the solid particle that is inhaled into seal face, obtains more preferably mechanical seal.
the present invention for achieving the above object, relate generally to the remodeling problem of seal ring end face, it is characterized in that: offer successively resistance grain groove on the mechanical sealing linkage ring end face, dynamic pressure groove, storage grain groove and drain boles, wherein resistance grain groove is opened in gas or liquid and is pumped into end, the grooved of resistance grain groove and dynamic pressure groove is continuous and consistent, it can be spiral line type, the circular arc line style, straight line type, the T font, chevron shaped, storage grain groove is annular groove, and open at the end of dynamic pressure groove or end nearby, the groove depth of resistance grain groove and dynamic pressure groove is that 0um is to 10um, the groove depth 0.5mm-10mm of storage grain groove, wherein the groove depth of resistance grain groove is shallower than dynamic pressure groove, row's grain Kong Yiduan is positioned at storage grain groove groove place and size can cover groove, the other end is positioned at rotating ring side or other end, because resistance grain groove depth is more shallow, therefore can stop larger impurity to be inhaled into, even the large solid particle of resistivity grain groove deep is inhaled into seal face, this solid particle also can be pumped to storage grain groove, is stored up the grain groove and stores, dynamic pressure groove plays fluid pumping effect and dynamic pressure effect, and storage grain groove plays the effect that stores impurity, and arranging a hole can be discharged to the solid particle that stores in storage grain groove in sealing medium.
Effect of the present invention is mainly: (1) offers resistance grain groove at the mechanical sealing linkage ring end face, can prevent effectively that larger solid particle is inhaled into seal face and causes abrasive wear, has improved greatly the friction, lubrication situation of seal face; (2) offer dynamic pressure groove at the mechanical sealing linkage ring end face, dynamic pressure groove plays fluid pumping effect and dynamic pressure effect, dynamic pressure effect and pumping effect can both produce larger opening force, realize the non-contact of seal face, that end-face friction is changed into fluid lubrication by boundary lubrication, improved the lubrication state of end face, the pumping effect can be pumped to the high pressure side, upstream with low voltage side leak liquid or buffering liquid, thereby reduces leakage rate; (3) storage grain groove can store a small amount of minor radius solid particle that is inhaled into, thereby reduces abrasive wear; (4) row's grain hole can be discharged to the solid particle that stores in storage grain groove in sealing medium; (5) radially the mechanical seal of groove depth gradation type is simple for the sealing chain rate, and easily realizes, processing cost is low.
Description of drawings
Fig. 1 is used for the seal ring end face grooved schematic diagram of the present invention of gas seal;
Fig. 2 is used for the seal ring end face grooved schematic diagram of the present invention of hydraulic seal.
Embodiment
Automatic excretion granular pattern hydrodynamic mechanical seal ring of the present invention is the rotating ring of mechanical seal, and the end face moulding can be adopted the processes such as electrochemical corrosion, electrical spark, laser beam machining.
Fig. 1 is for being used for the seal ring end face grooved schematic diagram of the present invention of gas seal, seal ring external diameter end is for pumping into end, from outside to inside, resistance grain groove, dynamic pressure groove, storage grain groove successively distribute, the grooved of resistance grain groove and dynamic pressure groove is continuous and consistent, be spiral line type, storage grain groove is annular groove, opens the end at dynamic pressure groove, resistance grain groove deep 2.5um, the dynamic pressure groove groove depth is that 5um is to 10um, the groove depth 2mm of storage grain groove, the number of resistance grain groove and dynamic pressure groove is 6, row's grain Kong Yiduan is positioned at storage grain groove groove place and size can cover groove, the other end is positioned at the rotating ring side, and number is 2, Fig. 2 is for being used for the seal ring end face grooved schematic diagram of the present invention of hydraulic seal, seal ring external diameter end is for pumping into end, from inside to outside, resistance grain groove successively distributes, dynamic pressure groove, storage grain groove, the grooved of resistance grain groove and dynamic pressure groove is continuous and consistent, be spiral line type, storage grain groove is annular groove, open the end at dynamic pressure groove, resistance grain groove deep 2.5um, dynamic pressure groove, groove depth is that 5um is to 10um, the groove depth 2mm of storage grain groove, the number of resistance grain groove and dynamic pressure groove is 6, row's grain Kong Yiduan is positioned at storage grain groove groove place and size can cover groove, the other end is positioned at the rotating ring side, number is 2.
The described content of this specification embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also is included in those skilled in the art and conceives the equivalent technologies means that can expect according to the present invention.
Claims (5)
1. an automatic excretion granular pattern hydrodynamic mechanical seal ring, is characterized in that offering successively a resistance grain groove, dynamic pressure groove, storage grain groove on the mechanical sealing linkage ring end face, arranges a hole, and wherein a resistance grain groove is opened in gas or liquid and pumped into end;
2. automatic excretion granular pattern hydrodynamic mechanical seal ring according to claim 1, the grooved that it is characterized in that hindering a groove and dynamic pressure groove continuously and consistent, can be spiral line type, circular arc line style, straight line type, T font, chevron shaped, a storage grain groove is annular groove, and opens at the end of dynamic pressure groove or end nearby;
3. automatic excretion granular pattern hydrodynamic mechanical seal ring according to claim 1, the groove depth that it is characterized in that hindering a groove and dynamic pressure groove be 0um to 10um, the groove depth 0.5mm-10mm of storage grain groove, wherein the groove depth of resistance grain groove is shallower than dynamic pressure groove;
4. automatic excretion granular pattern hydrodynamic mechanical seal ring according to claim 1, the number that it is characterized in that hindering a groove and dynamic pressure groove is consistent, and minimum 1, maximum 1000;
5. automatic excretion granular pattern hydrodynamic mechanical seal ring according to claim 1, it is characterized in that row's grain Kong Yiduan is positioned at storage grain groove groove place and size can cover groove, the other end is positioned at rotating ring side or other end, minimum one maximum 1000 of row's grain number of perforations;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100563793A CN103133696A (en) | 2013-02-22 | 2013-02-22 | Dynamic pressure mechanical sealing ring for automatically draining particle type fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100563793A CN103133696A (en) | 2013-02-22 | 2013-02-22 | Dynamic pressure mechanical sealing ring for automatically draining particle type fluids |
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| CN103133696A true CN103133696A (en) | 2013-06-05 |
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| CN2013100563793A Pending CN103133696A (en) | 2013-02-22 | 2013-02-22 | Dynamic pressure mechanical sealing ring for automatically draining particle type fluids |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106471296A (en) * | 2014-09-20 | 2017-03-01 | 伊格尔工业股份有限公司 | Slide unit |
| CN107110370A (en) * | 2014-11-08 | 2017-08-29 | 伊格尔工业股份有限公司 | Slide unit |
| CN107532726A (en) * | 2015-05-19 | 2018-01-02 | 伊格尔工业股份有限公司 | Slide unit |
| CN107882878A (en) * | 2017-12-07 | 2018-04-06 | 湖南天雁机械有限责任公司 | The thrust bearing of turbocharger of anti-abrasive wear |
| CN108131449A (en) * | 2018-01-31 | 2018-06-08 | 大连威尔博合金科技有限公司 | A kind of superhard material built-up welding mechanical seal ring |
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| US4212475A (en) * | 1979-01-15 | 1980-07-15 | Crane Packing Co. | Self aligning spiral groove face seal |
| JPH05164250A (en) * | 1991-12-18 | 1993-06-29 | Mitsubishi Heavy Ind Ltd | Non-contact mechanical seal |
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| CN201434073Y (en) * | 2009-05-15 | 2010-03-31 | 天津西泰斯机械技术有限公司 | Deslagging type rotating ring structure used in mechanical seal |
| CN101968117A (en) * | 2010-09-13 | 2011-02-09 | 清华大学 | Spiral groove end face seal device with transitional groove wall structure |
| CN202280841U (en) * | 2011-08-18 | 2012-06-20 | 东营海森密封技术有限责任公司 | Double-column reverse-intersecting fluid dynamic pressing groove mechanical seal |
| CN102518809A (en) * | 2011-12-29 | 2012-06-27 | 江苏大学 | Solid particle suction preventive type fluid dynamic pressure mechanical sealing ring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4212475A (en) * | 1979-01-15 | 1980-07-15 | Crane Packing Co. | Self aligning spiral groove face seal |
| JPH05164250A (en) * | 1991-12-18 | 1993-06-29 | Mitsubishi Heavy Ind Ltd | Non-contact mechanical seal |
| CN2442034Y (en) * | 2000-06-13 | 2001-08-08 | 石油大学(华东) | Double row fluid dynamic pressure groove self lubrication non-contact type mechanical seal |
| CN201434073Y (en) * | 2009-05-15 | 2010-03-31 | 天津西泰斯机械技术有限公司 | Deslagging type rotating ring structure used in mechanical seal |
| CN101968117A (en) * | 2010-09-13 | 2011-02-09 | 清华大学 | Spiral groove end face seal device with transitional groove wall structure |
| CN202280841U (en) * | 2011-08-18 | 2012-06-20 | 东营海森密封技术有限责任公司 | Double-column reverse-intersecting fluid dynamic pressing groove mechanical seal |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106471296A (en) * | 2014-09-20 | 2017-03-01 | 伊格尔工业股份有限公司 | Slide unit |
| CN106471296B (en) * | 2014-09-20 | 2018-12-28 | 伊格尔工业股份有限公司 | Slide unit |
| US10344867B2 (en) | 2014-09-20 | 2019-07-09 | Eagle Industry Co., Ltd. | Sliding component |
| CN107110370A (en) * | 2014-11-08 | 2017-08-29 | 伊格尔工业股份有限公司 | Slide unit |
| CN107110370B (en) * | 2014-11-08 | 2019-09-13 | 伊格尔工业股份有限公司 | Slide unit |
| CN107532726A (en) * | 2015-05-19 | 2018-01-02 | 伊格尔工业股份有限公司 | Slide unit |
| CN107532726B (en) * | 2015-05-19 | 2020-09-22 | 伊格尔工业股份有限公司 | Sliding component |
| CN107882878A (en) * | 2017-12-07 | 2018-04-06 | 湖南天雁机械有限责任公司 | The thrust bearing of turbocharger of anti-abrasive wear |
| CN108131449A (en) * | 2018-01-31 | 2018-06-08 | 大连威尔博合金科技有限公司 | A kind of superhard material built-up welding mechanical seal ring |
| CN108131449B (en) * | 2018-01-31 | 2023-08-29 | 大连威尔博合金科技有限公司 | Super-hard material surfacing mechanical sealing ring |
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Application publication date: 20130605 |