CN108506494A - A kind of imitative fish bone well dry gas sealing structure - Google Patents
A kind of imitative fish bone well dry gas sealing structure Download PDFInfo
- Publication number
- CN108506494A CN108506494A CN201810368239.2A CN201810368239A CN108506494A CN 108506494 A CN108506494 A CN 108506494A CN 201810368239 A CN201810368239 A CN 201810368239A CN 108506494 A CN108506494 A CN 108506494A
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- Prior art keywords
- slot
- imitative fish
- dry gas
- sealing structure
- imitative
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of imitative fish bone well dry gas sealing structures, including rotating ring and stationary ring；Wherein, rotating ring and the outside diameter of stationary ring end face are sealing import, i.e. high-pressure side, and internal side diameter is that sealing exports, i.e. low-pressure side；High-pressure side on rotating ring and at least one end face of stationary ring has been uniformly distributed circumferentially several imitative fish-bone type grooves；Non-open area between circumferentially-adjacent two imitative fish-bone type grooves is sealing weir (4), and the seals dam (8) of annular is equipped with below imitative fish-bone type groove.The present invention have unlatching ability is strong, stability is high, leakage rate is low, can reduce seal face deformation, can the significant advantages such as bidirectional rotation, have a vast market foreground.
Description
Technical field
The present invention relates to a kind of imitative fish bone well dry gas sealing structures, are suitable for each mechanical rotary seal.
Background technology
With development in science and technology, to sealing structure, more stringent requirements are proposed in the fields such as energy source and power, petrochemical industry.Dry gas is close
Envelope is widely applied since leakage rate is low, wears the significant advantages such as small, long lifespan on rotating machinery.At present application than
Wide dry gas seals are mostly single direction rotation sealing, are not suitable for bidirectional rotation machinery.And it is existing can bidirectional rotation it is dry
Hermetic seal, there are dynamic pressures to open the shortcomings of effect is not strong, leakage rate is higher, seal face deformation is big.In view of this situation, having must
Study the unlatching ability that can enhance, reduce end face temperature, reduce leakage rate, stable operation the sealing knot suitable for bidirectional rotation
Structure.
Invention content
The purpose of the present invention is to provide a kind of imitative fish bone well dry gas sealing structures, and dynamic pressure effect is apparent, open ability
By force, stability is high, can be used for each mechanical rotary seal.
The present invention adopts the following technical scheme that realize：
A kind of imitative fish bone well dry gas sealing structure, including rotating ring and stationary ring；Wherein, rotating ring and the outside diameter of stationary ring end face are
Import, i.e. high-pressure side are sealed, internal side diameter is that sealing exports, i.e. low-pressure side；High-pressure side on rotating ring and at least one end face of stationary ring
It has been uniformly distributed circumferentially several imitative fish-bone type grooves；Non-open area between circumferentially-adjacent two imitative fish-bone type grooves is sealing
Weir is equipped with the seals dam of annular below imitative fish-bone type groove.
The present invention, which further improves, to be, each imitative fish-bone type groove includes radial conduction slot, and and radial conduction
Slot connected transport screw slot, reverse acting spiral slot and " fish tail " combination slot；Radial conduction slot is radially restrained, transport screw slot and
Reverse acting spiral slot is symmetrical about the central axes of radial conduction slot, is connected to the both sides of radial conduction slot, transport screw slot and reversed
Helicla flute is in first increases and then decreases variation tendency radially from higher-pressure region to low-pressure area, and the helicla flute in the middle part of seal face is most
Greatly；" fish tail " combination slot is symmetrical about the central axes of radial conduction slot.
The present invention, which further improves, to be, the profile of radial conduction slot include be sequentially connected the first camber line, first straight line,
Second camber line and second straight line, and first straight line and second straight line are symmetrical about central axes.
The present invention, which further improves, to be, the profile of transport screw slot includes sequentially connected first circular arc line, first
The profile of helix and the second circular arc line, reverse acting spiral slot includes sequentially connected third circular arc line, the second helix and the 4th
Circular arc line；The profile of " fish tail " combination slot includes sequentially connected 5th circular arc line, third helix, the 6th circular arc line, the 4th
Helix and the 7th circular arc line.
The present invention, which further improves, to be, passes through circular arc between the adjacent grooves of circumferentially-adjacent two imitative fish-bone type grooves
Slot is connected.
The present invention, which further improves, to be, transport screw slot and reverse acting spiral slot downstream position arrangement are directional big
Hole, and directionality macropore selects oval macropore or diamond shape macropore.
The present invention, which further improves, to be, which is equal deep trouths, ladder-like deep trouths or the cone angle convergence such as not
The not equal deep trouths of type.
The present invention, which further improves, to be, seals dam is uniformly provided with several micropores, and micropore selects round micropore, ellipse
Shape micropore, diamond shape micropore or square micropore.
The present invention, which further improves, to be, the outer diameter face of the sealing structure is evenly equipped with several convex heat exchange structures of ball-and-socket/ball.
The present invention, which further improves, to be, the arrangement in-line arrangement of the convex heat exchange structure of ball-and-socket/ball or wrong row, shape is ball
Type, spheroid shape or teardrop shaped.
The present invention has following beneficial technique effect：
A kind of imitative fish bone well dry gas sealing structure provided by the invention, including rotating ring and stationary ring.Rotating ring and stationary ring end face
Outside diameter is sealing import, i.e. high-pressure side, and internal side diameter is that sealing exports, i.e. low-pressure side.On rotating ring and at least one end face of stationary ring
High-pressure side be uniformly distributed circumferentially imitative fish-bone type groove.Non-open area between circumferentially-adjacent imitative fish-bone type groove is sealing
Weir is equipped with ring packing dam below imitative fish-bone type groove.The imitative fish bone well dry gas sealing structure that the present invention uses, can bidirectional rotary
Turn, unlatching ability is strong, and end force is evenly distributed, and end face temperature is low, and leakage rate is small, and stability is strong.
Further, it is symmetrical about central axes that fish-bone type groove is imitated in the present invention, adapts to the operating mode of bidirectional rotation, rotate in the forward direction and
Reverse rotation has good sealing performance；Radial conduction slot can enhance dynamic pressure effect in convergence shape, improve seal face lubrication
State；Imitative fish-bone type groove is radially distributed multiple helical groove structures, multiple higher-pressure regions is being formed radially, compared to general dry gas
Sealing, dynamic pressure effect are remarkably reinforced, and open ability enhancing；When sealing rotation, transport screw slot can form apparent dynamic pressure effect, instead
To helicla flute back to working medium in seal clearance can be sent to high-pressure side, reduce leakage rate；Arc groove can make sealed end at " fish tail "
Face circumferential pressure distribution equilibrium reduces power deformation effect, while enhancing sealing stability；
Further, the arc groove in the present invention between the adjacent grooves of circumferentially-adjacent two imitative fish-bone type grooves may make close
Sealing end face circumferential pressure is evenly distributed, and reduces power deformation effect, while enhancing sealing stability；The peripheral flow of gas in arc groove
It is dynamic, the damping effect of end face is enhanced, leakage rate can be reduced；
Further, the directionality macropore that helicla flute downstream position is arranged in the present invention, plays guide functions, and adsorbable solid
Body particle reduces seal break-off risk；
Further, seals dam of the present invention arranges microcellular structure, adsorbable solid particle, and enhances the heat exchange of seal inner diameter area,
Seal face temperature is reduced, influence of thermal deformation is reduced；
Further, sealing ring outer diameter of the present invention arranges that the convex heat exchange structure of ball-and-socket/ball, enhancing sealing ring heat exchange reduce sealing
End face temperature reduces influence of thermal deformation；
Further, each Spiral groove parameter can be adjusted flexibly in the present invention, adapt to different operating modes.
In conclusion a kind of imitative fish bone well dry gas sealing structure of the present invention, can be obviously improved seal face unlatching
Ability reduces end face temperature, reduces leakage rate, improves stability, reduces seal face deformation, suitable for rotating forward or backwards
Occasion.
Description of the drawings
Fig. 1 is a kind of imitative fish bone well dry gas sealing structure schematic diagram of the present invention.
Fig. 2 is the imitative fish bone well slot shape appearance figure of the present invention.
Fig. 3 is that waiting for the present invention imitates fish bone well slot cross-section figure deeply.
Fig. 4 is that the ladder-like of the present invention does not wait deep imitative fish bone well slot cross-section figure.
Fig. 5 is that the tapered of the present invention does not wait deep imitative fish bone well slot cross-section figure.
Fig. 6 is the straight line drainage trough schematic diagram of the present invention.
Fig. 7 is the circular arc drainage trough schematic diagram of the present invention.
Fig. 8 is the spiral drainage trough schematic diagram of the present invention.
Fig. 9 is the wave drainage trough schematic diagram of the present invention.
Figure 10 is the directionality macropore schematic diagram of the present invention.
Figure 11 is the micropore schematic diagram of the present invention.
Figure 12 is that sealing ring outer diameter of the present invention arranges ball-and-socket/ball male structure schematic diagram.
Figure 13 is that in-line arrangement arranges ball-and-socket/ball male structure schematic diagram.
Figure 14 is wrong arrangement Place nest/ball male structure schematic diagram.
Figure 15 is ball-type ball-and-socket/convex schematic diagram of ball.
Figure 16 is spheroid shape ball-and-socket/convex schematic diagram of ball.
Figure 17 is teardrop shaped ball-and-socket/convex schematic diagram of ball.
In figure：1 is radial conduction slot, and 2 be transport screw slot, and 3 be reverse acting spiral slot, and 4 be sealing weir, and 5 be arc groove, 6
For directionality macropore, 7 be " fish tail " combination slot, 8 be seals dam, and 9 be micropore, and 10 be the convex heat exchange structure of ball-and-socket/ball, and 21 be first
Helix, 22 be the first circular arc line, and 23 be the second circular arc line, and 31 be the second helix, 32 be third circular arc line, and 33 be the 4th circle
Camber line, 61 be oval macropore, and 62 be diamond shape macropore, and 71 be the 5th circular arc line, and 72 be third helix, and 73 be the 6th circular arc
Line, 74 be the 4th helix, and 75 be the 7th circular arc line, and 91 be round micropore, and 92 be oval micropore, and 93 be diamond shape micropore, 94
It is square micropore, 101 be the first camber line, and 102 be the second camber line, and 103 be first straight line, and 104 be second straight line.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in further detail.But this should not be interpreted as to the above-mentioned theme of the present invention
Range be limited only to the following contents.In the case where not departing from above-mentioned thought of the invention, according to ordinary skill knowledge
The various replacements or change made with customary means, should all be included within the scope of the invention.
Referring to Fig. 1, a kind of imitative fish bone well dry gas sealing structure provided by the invention, including rotating ring and stationary ring.Rotating ring and quiet
The outside diameter of ring end face is sealing import, i.e. high-pressure side, and internal side diameter is that sealing exports, i.e. low-pressure side.Rotating ring and stationary ring at least one
Circumferentially periodic arrangement has imitative fish-bone type groove for high-pressure side on a end face.The imitative fish-bone type groove is by radial conduction slot 1, forward direction
Helicla flute 2, reverse acting spiral slot 3 and " fish tail " combination slot 7 are constituted.Radial conduction slot 1 is radially restrained, with transport screw slot 2, instead
It is connected to helicla flute 3 with " fish tail " combination slot 7, and it is symmetrical about central axes.3 edge of transport screw slot 2 and reverse acting spiral slot
Radial is in first increases and then decreases variation tendency from higher-pressure region to low-pressure area, and the helicla flute in the middle part of seal face is maximum." fish tail "
Combination slot 7 about the symmetrical helicla flute of axis and arc groove by constituting.The adjacent grooves of circumferentially-adjacent imitative fish-bone type groove it
Between have arc groove 5 be connected.Transport screw slot 2 and 3 downstream position of reverse acting spiral slot arrange directional macropore 6.It is circumferentially-adjacent imitative
Non-open area between fish-bone type groove is sealing weir 4, and the seals dam 8 of annular is equipped with below imitative fish-bone type groove.In seals dam 8
Arrange micropore 9.
Referring to Fig. 2, imitative fish-bone type groove includes radial conduction slot 1, transport screw slot 2, reverse acting spiral slot 3 and " fish tail " combination
Slot 7.The profile of transport screw slot 2 is made of the first helix 21, the first circular arc line 22 and the second circular arc line 23.It is corresponding,
The profile of reverse acting spiral slot 3 is made of the second helix 31, third circular arc line 32 and the 4th circular arc line 33." fish tail " combination slot 7
Profile by the 5th circular arc line 71, third helix 72, the 6th circular arc line 73, the 4th helix 74 and 75 structure of the 7th circular arc line
At.Further, referring to Fig. 3, Fig. 4 and Fig. 5, imitative fish-bone type groove could be provided as different types, such as deep trouth, the ladder-like depth such as not
Slot, tapered deep trouths such as not etc..
Referring to Fig. 6, straight line radial conduction slot 1 is straight by the first camber line 101, the second camber line 102, first straight line 103 and second
Line 104 is constituted.Wherein, first straight line 103 and second straight line 104 are symmetrical about central axes.Referring to Fig. 7, Fig. 8 and Fig. 9, radially draw
Chute molded line also may be disposed to other patterns, such as circular arc drainage trough, spiral drainage trough, wave drainage trough.
Referring to Figure 10, the patterns such as oval macropore 61, diamond shape macropore 62 can be selected in directionality macropore 6.
Referring to Figure 11, round micropore 91, oval micropore 92, diamond shape micropore 93 and square micropore 94 can be selected in micropore 9
Etc. patterns.
Referring to Figure 12, sealing ring outer diameter face arranges the convex heat exchange structure of ball-and-socket/ball 10.Referring to Figure 13, Figure 14, Figure 15, Figure 16
And Figure 17, the convex heat exchange structure of ball-and-socket/ball 10 can have different arrangements and a shape, arrangement can be in-line arrangement or wrong row,
Shape can be ball-type, spheroid shape, teardrop shaped etc..
Working principle of the present invention is as follows：
Under working condition, sealing working medium flows into seal face from outside diameter higher-pressure region, and the drainage of radial conduction slot 1 will
Sealing working medium is rapidly introduced into end face, and convergence type structure produces very strong compression effectiveness to sealing working medium.Since rotating ring rotates,
It seals working medium and radially enters each rank transport screw slot 2 step by step, compressed, pressure increases rapidly, is formd in seal face
Multiple higher-pressure regions.Reverse acting spiral slot 3 sends the portion gas for sealing downstream back to high-pressure side, reduces leakage rate.Circumferentially-adjacent two
Arc groove 5 between the adjacent grooves root of imitative fish-bone type groove keeps circumferential pressure distribution in end face more uniform, and improves end
The lubrication circumstances in face.5 downstream position of helicla flute it is directional microporous, play drainage, and can be with consolidating in adsorbed gas
Body particle." fish tail " combination slot 7 of imitative fish-bone type groove and the composite structure of arc groove 5 have further been uniformly distributed end force.
The microcellular structure of seals dam area arrangement, further adsorbent solid particle, and can coolant seal end face.
Claims (10)
1. a kind of imitative fish bone well dry gas sealing structure, which is characterized in that including rotating ring and stationary ring；Wherein, rotating ring and stationary ring end face
Outside diameter be sealing import, i.e. high-pressure side, internal side diameter is that sealing exports, i.e. low-pressure side；Rotating ring and at least one end face of stationary ring
On high-pressure side be uniformly distributed circumferentially several imitative fish-bone type grooves；Non- aperture area between circumferentially-adjacent two imitative fish-bone type grooves
Domain is sealing weir (4), and the seals dam (8) of annular is equipped with below imitative fish-bone type groove.
2. a kind of imitative fish bone well dry gas sealing structure according to claim 1, which is characterized in that each imitative fish-bone type groove is equal
Including radial conduction slot (1), and the transport screw slot (2), reverse acting spiral slot (3) and " fish that are connected with radial conduction slot (1)
Tail " combination slot (7)；Radial conduction slot (1) is radially restrained, and transport screw slot (2) and reverse acting spiral slot (3) are about radial conduction
The central axes of slot (1) are symmetrical, are connected to the both sides of radial conduction slot (1), transport screw slot (2) and reverse acting spiral slot (3) are along diameter
To being in first increases and then decreases variation tendency from higher-pressure region to low-pressure area, the helicla flute in the middle part of seal face is maximum；" fish tail " group
It is symmetrical about the central axes of radial conduction slot (1) to close slot (7).
3. a kind of imitative fish bone well dry gas sealing structure according to claim 2, which is characterized in that radial conduction slot (1)
Profile includes being sequentially connected the first camber line (101), first straight line (103), the second camber line (102) and second straight line (104), and the
One straight line (103) and second straight line (104) are symmetrical about central axes.
4. a kind of imitative fish bone well dry gas sealing structure according to claim 2, which is characterized in that transport screw slot (2)
Profile includes sequentially connected first circular arc line (22), the first helix (21) and the second circular arc line (23), reverse acting spiral slot (3)
Profile include sequentially connected third circular arc line (32), the second helix (31) and the 4th circular arc line (33)；" fish tail " combines
The profile of slot (7) includes sequentially connected 5th circular arc line (71), third helix (72), the 6th circular arc line (73), the 4th spiral shell
Spin line (74) and the 7th circular arc line (75).
5. a kind of imitative fish bone well dry gas sealing structure according to claim 2, which is characterized in that circumferentially-adjacent two imitative fishes
It is connected by arc groove (5) between the adjacent grooves of bone type groove.
6. a kind of imitative fish bone well dry gas sealing structure according to claim 2, which is characterized in that transport screw slot (2) and
Reverse acting spiral slot (3) downstream position arranges directional macropore (6), and directionality macropore (6) select oval macropore (61) or
Diamond shape macropore (62).
7. a kind of imitative fish bone well dry gas sealing structure according to claim 1, which is characterized in that the imitative fish-bone type groove is etc.
Deep trouth, the ladder-like deep trouths such as not or cone angle convergence the type deep trouths such as not.
8. a kind of imitative fish bone well dry gas sealing structure according to claim 1, which is characterized in that seals dam (8) is uniformly opened
Equipped with several micropores (9), micropore (9) selects round micropore (91), oval micropore (92), diamond shape micropore (93) or square micro-
Hole (94).
9. a kind of imitative fish bone well dry gas sealing structure according to claim 1, which is characterized in that the outer diameter of the sealing structure
Face is evenly equipped with several convex heat exchange structures of ball-and-socket/ball (10).
10. a kind of imitative fish bone well dry gas sealing structure according to claim 9, which is characterized in that the convex heat exchange knot of ball-and-socket/ball
The arrangement in-line arrangement of structure (10) or wrong row, shape are ball-type, spheroid shape or teardrop shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368239.2A CN108506494B (en) | 2018-04-23 | 2018-04-23 | Fish bone-like dry gas sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368239.2A CN108506494B (en) | 2018-04-23 | 2018-04-23 | Fish bone-like dry gas sealing structure |
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| Publication Number | Publication Date |
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| CN108506494A true CN108506494A (en) | 2018-09-07 |
| CN108506494B CN108506494B (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810368239.2A Active CN108506494B (en) | 2018-04-23 | 2018-04-23 | Fish bone-like dry gas sealing structure |
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| CN (1) | CN108506494B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185461A (en) * | 2018-10-26 | 2019-01-11 | 清华大学 | The seal face structure of rotating machinery |
| CN109538762A (en) * | 2019-01-14 | 2019-03-29 | 东营海森密封技术有限责任公司 | A kind of shaft end mechanical seal structure |
| CN110578801A (en) * | 2019-09-29 | 2019-12-17 | 西安石油大学 | Anchor-shaped dry gas sealing device |
| CN113439167A (en) * | 2019-02-04 | 2021-09-24 | 伊格尔工业股份有限公司 | Sliding component |
| CN113454353A (en) * | 2019-02-21 | 2021-09-28 | 伊格尔工业股份有限公司 | Sliding component |
| US11608897B2 (en) | 2018-08-01 | 2023-03-21 | Eagle Industry Co., Ltd. | Slide component |
| US11815184B2 (en) | 2018-11-30 | 2023-11-14 | Eagle Industry Co., Ltd. | Sliding component |
| US11821462B2 (en) | 2018-08-24 | 2023-11-21 | Eagle Industry Co., Ltd. | Sliding member |
| US11821521B2 (en) | 2018-12-21 | 2023-11-21 | Eagle Industry Co., Ltd. | Sliding component |
| US11892081B2 (en) | 2019-07-26 | 2024-02-06 | Eagle Industry Co., Ltd. | Sliding component |
| US11933405B2 (en) | 2019-02-14 | 2024-03-19 | Eagle Industry Co., Ltd. | Sliding component |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11608897B2 (en) | 2018-08-01 | 2023-03-21 | Eagle Industry Co., Ltd. | Slide component |
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| US11815184B2 (en) | 2018-11-30 | 2023-11-14 | Eagle Industry Co., Ltd. | Sliding component |
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| CN113439167A (en) * | 2019-02-04 | 2021-09-24 | 伊格尔工业股份有限公司 | Sliding component |
| US11933405B2 (en) | 2019-02-14 | 2024-03-19 | Eagle Industry Co., Ltd. | Sliding component |
| CN113454353A (en) * | 2019-02-21 | 2021-09-28 | 伊格尔工业股份有限公司 | Sliding component |
| US11892081B2 (en) | 2019-07-26 | 2024-02-06 | Eagle Industry Co., Ltd. | Sliding component |
| CN110578801A (en) * | 2019-09-29 | 2019-12-17 | 西安石油大学 | Anchor-shaped dry gas sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108506494B (en) | 2020-03-17 |
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