CN201016397Y - End-face mechanically sealing arrangement of controlled zero-revolution opening pressure helical groove - Google Patents
End-face mechanically sealing arrangement of controlled zero-revolution opening pressure helical groove Download PDFInfo
- Publication number
- CN201016397Y CN201016397Y CNU2007200104843U CN200720010484U CN201016397Y CN 201016397 Y CN201016397 Y CN 201016397Y CN U2007200104843 U CNU2007200104843 U CN U2007200104843U CN 200720010484 U CN200720010484 U CN 200720010484U CN 201016397 Y CN201016397 Y CN 201016397Y
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- face
- spiral chute
- rotating ring
- ring
- conical surface
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Abstract
The utility model provides a mechanical seal device of controllable zero revolution opening pressure for a spiral scroll end face, and belongs to a mechanical seal device for a spiral scroll end face, and is technically characterized in that a rotating ring in a friction pair constitutes a single negative micro-pyramidal face structure, or the rotating ring and an end face of a static ring are made into positive micro-pyramidal faces to constitute a double positive micro-pyramidal face structure. The single and double positive micro-pyramidal faces are designed so that the spiral scroll is appropriate to be arranged on the outside diameter side of the rotating ring or the static ring. The utility model has the advantages of novel structure, simple art, and that the utility model is designed so that the spiral scroll end face is sealed mechanically without friction or wear, and zero rotary speed opening pressure of the mechanical sealing device for the spiral scroll end face is expectable. The frictional wear of the rotating ring and the static ring is prevented. The utility model is used for non-contact mechanical seal.
Description
Technical field:
The utility model relates to a kind of spiral chute end surface mechanical sealing technical field.Particularly a kind of spiral chute end surface mechanical sealing device that is used for the controlled zero revolution cracking pressure of fluid machinery running shaft.
Background technique:
Usually, spiral chute end surface mechanical sealing device, by rotating ring, stationary ring, spring constitutes friction pair.In the friction pair of elasticity assembling, the end face of rotating ring and stationary ring is parallel anchor ring.And on the end face of rotating ring or stationary ring, process uniform spiral chute.When rotating shaft was static, spring force and hydrodynamic pressure were fitted rotating ring and the stationary ring in the friction pair.Realized static sealing.During the rotating shaft rotation, the spiral chute on the end face produces dynamic pressure effect, and the rotating ring of applying and stationary ring are opened.And the fluid film that formation has certain rigidity between rotating ring and stationary ring.Realized the non-contact operation (dynamic seal (packing)) of spiral chute end surface mechanical sealing device.The starting stage dynamic pressure effect of this process is not remarkable, and rotating ring and stationary ring still are in fit-state, causes the fretting wear of rotating ring and stationary ring.If the equipment frequent starting will produce serious fretting wear, even cause spiral chute end surface mechanical sealing failure of apparatus.
Summary of the invention:
The purpose of this utility model is the shortcoming that exists in the above-mentioned technology, and a kind of spiral chute end surface mechanical sealing device of controlled zero revolution cracking pressure is provided.It is a kind of non-contacting mechanical seal.It can make the spiral chute end surface mechanical sealing realize not having friction does not have wearing and tearing.And the cracking pressure of expectability spiral chute end surface mechanical sealing device zero rotating speed.Avoided the fretting wear of rotating ring and stationary ring.
The purpose of this utility model is achieved in that and comprises rotating ring, stationary ring, spiral chute, it is characterized in that, with the rotating ring in the friction pair, also can be that the end face of stationary ring is made just little conical surface, constitute Dan Zhengwei conical surface type structure, or opposed just little conical surface type structure.Span 0.15～2.5 μ m of height of conical surface e.
Also the end face of rotating ring and stationary ring all can be made just little conical surface, constitute two just little conical surface type structures, or opposed two just little cone structure.Height of conical surface is e/2.Single, double just little conical surface is suitable for the outside diameter that spiral chute is opened in rotating ring or stationary ring.The end face of rotating ring and stationary ring also can be designed to negative little conical surface, constitutes single or two negative little cone structures.Single, double negative little cone structure is suitable for the internal side diameter that spiral chute is opened in rotating ring or stationary ring.
When zero rotating speed cracking pressure was high, e got smaller value, and when zero rotating speed cracking pressure was low, e got higher value.
The utility model has the advantages that, novel structure, technology is simple, and it can make the spiral chute end surface mechanical sealing realize not having friction does not have wearing and tearing, the cracking pressure of expectability spiral chute end surface mechanical sealing device zero rotating speed.Avoided the fretting wear of rotating ring and stationary ring.
Description of drawings:
Fig. 1 is the structural drawing of the Dan Zhengwei conical surface of the present utility model
Fig. 2 is the structural drawing of two just little conical surfaces of the present utility model
Fig. 3 is the structural representation of the utility model spiral chute at outside diameter
Fig. 4 is the structural drawing of the negative little conical surface of list of the present utility model
Fig. 5 is the structural drawing of two negative little conical surfaces of the present utility model
Fig. 6 is the structural representation of the utility model spiral chute at internal side diameter
Fig. 7 is the structural drawing of the opposed Dan Zhengwei conical surface of the present utility model
Fig. 8 is the structural drawing of opposed two just little conical surfaces of the present utility model
Fig. 9 is the user mode structural representation that the utility model spiral chute is located at outer radius
Figure 10 is the user mode structural representation that the opposed single, double just little conical surface spiral chute of the utility model is located at outer radius
Figure 11 is the user mode structural representation that the utility model spiral chute is located at inner radius
Embodiment:
Below in conjunction with accompanying drawing present embodiment is described further:
By Fig. 1-Fig. 2, Fig. 3 as can be known, the rotating ring 1 in the friction pair also can be that the end face of stationary ring 2 is made just little conical surface, constitutes the Dan Zhengwei cone structure.Span 0.15～2.5 μ m of height of conical surface e.Also the end face of rotating ring 1 and stationary ring 2 all can be made just little conical surface, constitute two just little cone structures.Height of conical surface is e/2.Single, double just little cone structure is suitable for the outside diameter that spiral chute 3 is opened in rotating ring or stationary ring.
By Fig. 4-Fig. 5, Fig. 6 as can be known, the end face of rotating ring 1 and stationary ring 2 also can be designed to single negative little conical surface, two negative little conical surface, and single, double negative little conical surface is suitable for the internal side diameter that spiral chute 3 is opened in rotating ring or stationary ring.
Fig. 1, Fig. 2, the little conical surface of Fig. 4, Fig. 5 all can adopt processing methods such as machinery or chemistry to realize.Height of conical surface e value can adopt methods such as electronics or optics to measure.
The rotating ring of Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 7, this structure of Fig. 8 or the spiral fluted flute profile of stationary ring can be any flute profiles.
By Fig. 7, Fig. 8 as can be known, the Dan Zhengwei conical surface, two just little conical surface also can be made opposed form in actual applications.Also can adopt processing methods such as machinery or chemistry to realize.Height of conical surface e value can adopt methods such as electronics or optics to measure.
By Fig. 9, Figure 10, Figure 11 as can be known, rotating ring 1, stationary ring 2, spring 4 constitute friction pair.Rotating ring 1 is fixed in the rotating shaft 5 in the friction pair of elasticity assembling,, stationary ring 2 is fixed on the housing.
By Fig. 9, Figure 10, Figure 11 structural type of the utility model when concrete application the as can be known.
Claims (9)
1. the spiral chute end surface mechanical sealing device of controlled zero a revolution cracking pressure comprises rotating ring, stationary ring, spiral chute, it is characterized in that, the end face of rotating ring in the friction pair and stationary ring is made just little conical surface; Or negative little conical surface.
2. the spiral chute end surface mechanical sealing device of controlled zero revolution cracking pressure according to claim 1 is characterized in that, the end face of rotating ring in the friction pair and stationary ring can also be made the opposed type Dan Zhengwei conical surface; Or the two just little conical surfaces of opposed type.
3. the spiral chute end surface mechanical sealing device of controlled zero revolution cracking pressure according to claim 1 is characterized in that, the end face of rotating ring and stationary ring be can be made into single or two just little conical surface.
4. the spiral chute end surface mechanical sealing device of controlled zero revolution cracking pressure according to claim 1 is characterized in that, the end face of rotating ring and stationary ring be can be made into single or two negative little conical surface.
5. the spiral chute end surface mechanical sealing device of controlled zero revolution cracking pressure according to claim 1 is characterized in that the spiral fluted flute profile of rotating ring and stationary ring is any flute profile.
6. the spiral chute end surface mechanical sealing device of controlled zero revolution cracking pressure according to claim 3 is characterized in that the span of Dan Zhengwei height of conical surface e is 0.15～2.5 μ m.
7. the spiral chute end surface mechanical sealing device of controlled zero revolution cracking pressure according to claim 3 is characterized in that two just little height of conical surface are e/2.
8. the spiral chute end surface mechanical sealing device of controlled zero revolution cracking pressure according to claim 3 is characterized in that single, double just little conical surface is used for the outside diameter that spiral chute is opened in rotating ring or stationary ring.
9. the spiral chute end surface mechanical sealing device of controlled zero revolution cracking pressure according to claim 4 is characterized in that, single, double negative little conical surface is used for the internal side diameter that spiral chute is opened in rotating ring or stationary ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200104843U CN201016397Y (en) | 2007-02-07 | 2007-02-07 | End-face mechanically sealing arrangement of controlled zero-revolution opening pressure helical groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200104843U CN201016397Y (en) | 2007-02-07 | 2007-02-07 | End-face mechanically sealing arrangement of controlled zero-revolution opening pressure helical groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201016397Y true CN201016397Y (en) | 2008-02-06 |
Family
ID=39056883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200104843U Expired - Lifetime CN201016397Y (en) | 2007-02-07 | 2007-02-07 | End-face mechanically sealing arrangement of controlled zero-revolution opening pressure helical groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201016397Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846143A (en) * | 2010-06-23 | 2010-09-29 | 北京理工大学 | Seal ring with even-depth spiral groove on end face |
| CN103090006A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral groove rotary sealing ring with cone-shaped cross section and used on vehicle |
| CN107060900A (en) * | 2017-03-31 | 2017-08-18 | 沈阳北碳密封有限公司 | Burner honeycomb spiral radial brush broach split mechanical seals |
| CN108679231A (en) * | 2018-07-27 | 2018-10-19 | 中国大唐集团科学技术研究院有限公司华中分公司 | Turbo-generator Set hydrogen seal device and encapsulating method |
| CN110513324A (en) * | 2019-08-23 | 2019-11-29 | 哈尔滨电气动力装备有限公司 | Reactor coolant pump Hydrostatic die mould mechanical seal |
-
2007
- 2007-02-07 CN CNU2007200104843U patent/CN201016397Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846143A (en) * | 2010-06-23 | 2010-09-29 | 北京理工大学 | Seal ring with even-depth spiral groove on end face |
| CN103090006A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral groove rotary sealing ring with cone-shaped cross section and used on vehicle |
| CN103090006B (en) * | 2013-02-04 | 2014-04-16 | 北京理工大学 | Spiral groove rotary sealing ring with cone-shaped cross section and used on vehicle |
| CN107060900A (en) * | 2017-03-31 | 2017-08-18 | 沈阳北碳密封有限公司 | Burner honeycomb spiral radial brush broach split mechanical seals |
| CN107060900B (en) * | 2017-03-31 | 2023-06-16 | 沈阳北碳密封有限公司 | Honeycomb spiral radial brush type comb tooth split seal |
| CN108679231A (en) * | 2018-07-27 | 2018-10-19 | 中国大唐集团科学技术研究院有限公司华中分公司 | Turbo-generator Set hydrogen seal device and encapsulating method |
| CN110513324A (en) * | 2019-08-23 | 2019-11-29 | 哈尔滨电气动力装备有限公司 | Reactor coolant pump Hydrostatic die mould mechanical seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |
|
| CX01 | Expiry of patent term |