CN106838323B - A kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance - Google Patents
A kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance Download PDFInfo
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- CN106838323B CN106838323B CN201710199807.6A CN201710199807A CN106838323B CN 106838323 B CN106838323 B CN 106838323B CN 201710199807 A CN201710199807 A CN 201710199807A CN 106838323 B CN106838323 B CN 106838323B
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- Prior art keywords
- micro
- bulge
- cluster
- seal face
- shark skin
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- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 241000251730 Chondrichthyes Species 0.000 title claims abstract description 27
- 238000005086 pumping Methods 0.000 claims abstract description 42
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 238000005452 bending Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 210000003491 skin Anatomy 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 241000238586 Cirripedia Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 241000565667 Mesodon inflectus Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- F16J15/3496—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member use of special materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
A kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance, including the rotating ring or stationary ring as mechanical seal, the seal face outer end of rotating ring and stationary ring is as high-pressure side, that is, upstream, seal face the inner is used as low-pressure side, that is, downstream, the high-pressure side of at least one seal face upstream is equipped with the seals dam of a circle closing in rotating ring or stationary ring, and circumferentially it is evenly distributed with several pumping grooves on the seal face surface, the first end of pumping groove extends to the high-pressure side of seal face, and second end extends to the low-pressure side of seal face；Region between adjacent two pumping grooves is sealing weir；The micro-bulge cluster of slot bottom and the imitative shark skin surface pattern of sealing weir surface processing, until being uniformly covered with whole sealing weir and pumping groove slot bottom, micro-bulge cluster is made of the dislocation arrangement of micro-bulge cluster several dimpling body units parallel to each other.The beneficial effects of the invention are as follows：Prevent marine fouling organism attachment, drag reduction, imitative shark skin surface three-dimensional appearance that is wear-resisting and strengthening heat dissipation.
Description
Technical field
The invention belongs to mechanical seal structure design field, is specifically related to a kind of imitative shark skin surface three-dimensional appearance
End surface mechanical sealing structure.
Background technology
Marine environment has the particularity of many with respect to land, so applying the operating mode of the mechanical seal in extra large frock is standby
It is more severe.Particularly marine biofouling problem, which is given, applies the mechanical seal in extra large frock is standby to bring many harm, sea
Foreign fouling organism can be attached in the friction pair of mechanical seal, can accelerate the corrosion and abrasion of seal face, so as to cause machinery
The sealing performance of sealing declines, and service life shortens, and mechanical seal can be made to fail when serious.For such case, it is necessary to grind
Study carefully a kind of mechanically-sealing apparatus for preventing marine fouling organism from adhering to, make mechanical seal in the process of running by marine fouling organism
Influence be preferably minimized, so as to increase the wearability and corrosion resistance of sealing, extend its service life.
At present, have many studies have shown that large ocean mammal shagreen have complexity surface topography, this
The appearance structure of a little biological surfaces can effectively prevent or suppress biological attachment.The machine of benthon attachment is protected according to shark
Reason, Brennan et al., Scardino and De Nys and Magin et al. develop Sharklet using the method for etching overmolded
AFTM fine structure materials, it was demonstrated that can effectively prevent algae, barnacle etc. to be stained marine organisms attachment, and its adhesive rate reduces
85% or so.
The mechanism of marine fouling organism attachment is imitated according to shark skin surface appearance structure, a kind of imitative shark epidermis can be designed
The end surface mechanical sealing structure of face appearance structure, so that marine organisms attachment is prevented or inhibited, so as to reach increase seal wear-resistant
Property and corrosion resistance, the purpose to prolong the service life.
The content of the invention
For current the defects of being easily subject to marine fouling organism to adhere to using the end face seal of ocean or deficiency, the present invention
Provide a kind of end for the imitative shark skin surface three-dimensional appearance for preventing marine fouling organism attachment, drag reduction, wear-resisting and reinforcing from radiating
Face mechanical seal structure.
A kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance of the present invention, including mechanical seal
The seal face outer end of rotating ring and stationary ring, the rotating ring and the stationary ring is inner as high-pressure side, that is, upstream, seal face
As low-pressure side, that is, downstream, it is characterised in that：The high-pressure side of at least one seal face upstream is set in the rotating ring or stationary ring
There is the seals dam that a circle is closed, and several pumping grooves, the pumping groove are circumferentially evenly distributed with the seal face surface
First end extend to the high-pressure side of seal face, second end extends to the low-pressure side of seal face；Adjacent two pumpings
Region between groove is sealing weir；The pumping groove slot bottom and sealing weir surface are machined with the micro- of imitative shark skin surface pattern
Convex body cluster, the micro-bulge cluster dislocation arrangement is until be uniformly covered with whole sealing weir and pumping groove slot bottom, the micro-bulge
Cluster is made of several dimpling body units parallel to each other.
The micro-bulge cluster is arranged in parallel along its short-axis direction successively by several dimpling body units, and with group micro-bulge list
Member length along its short-axis direction from center to both ends decrescence；The adjacent micro-bulge cluster on sealing weir surface along its short-axis direction head and the tail
Connect, and straight line where the micro-bulge cluster short axle on sealing weir surface crosses the center of circle of seal face；Its short-and-medium axle refers to micro-bulge
The symmetry axis vertical with micro-bulge unit center axis in cluster；Major axis refers to the center of most long dimpling body unit in micro-bulge cluster
Axis.
The seal face surface is that bending direction is consistent along its circumferentially uniformly distributed multiple pumping groove, pumping groove
Smooth arc groove, and the second end notch of pumping groove is than first end slot opening.
The micro-bulge cluster long axis direction of the bottom surface of the pumping groove is consistent with the arc groove water conservancy diversion direction, institute
It is consistent with the tangent to periphery direction of basic circle where arc groove to state the micro-bulge cluster long axis direction on sealing weir surface.
The micro-bulge cell cross-section is the combined shaped of rectangle and two semicircles, the dimpling body unit two and half
Straight line where the round heart is overlapped with dimpling body unit major axis, the perpendicular bisector of two semicircle circle center line connectings of dimpling body unit is by sealing
The end face center of circle and overlapped with micro-bulge cell short axis.
Spacing of the first end of the pumping groove apart from the end face upstream is 0.5-3mm, groove depth 0.1-
1mm。
The uniformly distributed pumping groove number in the seal face surface is 3-25.
It it is 0.05-0.3 μm with the gap between the dimpling body unit in group micro-bulge cluster.
The invention has the advantages that：
1) it is machined with micron order on pumping groove slot bottom and sealing weir surface and imitates the micro- of shark skin surface three-dimensional appearance
Convex body cluster so that marine fouling organism is difficult to adhere on seal face, so as to reach the mesh for preventing that marine fouling organism from adhering to
's.
2) due to that between micro-bulge cluster, there are certain interval, a part of end face seal can be taken away when liquid passes through and is being run
During the frictional heat that produces, reach the effect for strengthening heat dissipation.
3) pumping groove and imitative shark skin surface three-dimensional appearance are combined, and can be reduced friction power loss, be subtracted so as to reach
The effect of resistance.
4) pumping groove and imitative shark skin surface three-dimensional appearance are combined, and can strengthen dynamic pressure effect, reduce abrasion, from
And the effect for reaching enhancing wearability, prolonging the service life.
Brief description of the drawings
Fig. 1 is that (A represents high-pressure side to schematic diagram of the invention；B represents low-pressure side)；
Fig. 2 is the top view of the present invention；
Fig. 3 is the micro-bulge cluster schematic diagram of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
A kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance of the present invention of embodiment 1, including make
For the rotating ring and stationary ring of mechanical seal, on the seal face outer end of the rotating ring and the stationary ring 1 as high-pressure side A is
Trip, seal face the inner are used as low-pressure side B, that is, downstream, the high pressure of at least one seal face upstream in the rotating ring or stationary ring
Side is equipped with the seals dam 2 of a circle closing, and is circumferentially evenly distributed with several pumping grooves 5, the upstream on the seal face surface
The first end of pumping groove 5 extends to the high-pressure side A of seal face, and second end extends to the low-pressure side B of seal face；Adjacent two
Region between pumping groove 5 is sealing weir 3；5 slot bottom of pumping groove and 3 surface of sealing weir are machined with imitative sharkskin
The micro-bulge cluster 4 of surface topography, the dislocation of micro-bulge cluster 4 arrangement is until be uniformly covered with whole sealing weir 3 and pumping groove 5
Slot bottom, the micro-bulge cluster 441 are made of several dimpling body units parallel to each other.
The micro-bulge cluster 4 is arranged in parallel along its short-axis direction successively by several dimpling body units 41, and with group dimpling
The length of body unit along its 7 direction of short axle from center to both ends decrescence；The adjacent micro-bulge cluster on sealing weir surface is along its short axle side
To end to end, and straight line where the micro-bulge cluster short axle on sealing weir surface crosses the center of circle of seal face；Its short-and-medium axle refers to
The symmetry axis vertical with micro-bulge unit center axis in micro-bulge cluster；Major axis 6 refers to most long dimpling body unit in micro-bulge cluster
Central shaft.
The seal face surface is consistent for bending direction along its circumferentially uniformly distributed multiple pumping groove 5, pumping groove 5
Smooth arc groove, and the second end notch of pumping groove 5 is than first end slot opening.
4 major axis of micro-bulge cluster, 6 direction of the bottom surface of the pumping groove 5 and the arc groove water conservancy diversion direction one
Cause, the micro-bulge cluster long axis direction on 3 surface of sealing weir is consistent with the tangent to periphery direction of basic circle where arc groove.
41 cross section of dimpling body unit is the combined shaped of rectangle and two semicircles, the dimpling body unit two
Straight line where the semicircle center of circle is overlapped with dimpling body unit major axis, the perpendicular bisector of two semicircle circle center line connectings of dimpling body unit is through overstocked
The end-blocking face center of circle and overlapped with micro-bulge cell short axis.
Spacing of 5 first end of pumping groove apart from the end face upstream is 0.5-3mm, groove depth 0.1-1mm.
The uniformly distributed pumping groove number in the seal face surface is 3-25.
It it is 0.05-0.3 μm with the gap between the dimpling body unit in group micro-bulge cluster 4.
Specifically, stationary ring is represented in Fig. 1, but rotating ring is in fact similar to its, in addition this place is not drawn；The pumping
Groove 5 and imitative shark skin surface three-dimensional appearance are combined can reduce friction power loss, so as to drop low friction pair in the process of running
Resistance, reaches the effect of drag reduction, at the same the pumping groove 5 and imitative shark skin surface three-dimensional appearance be combined can increase it is dynamic
Effect is pressed, friction pair is reduced wear rate reduction in the process of running, the effect for reach enhancing wearability, prolonging the service life.
There are gap between the micro-bulge cluster 4, the area of liquid and solid contact can be increased, make the heat that convection current is conducted heat between solid-liquid
Amount increase, the heat taken away by liquid flowing increases, so as to reach the effect for strengthening heat dissipation.Simultaneously as the micro-bulge
The presence of cluster 4 so that marine fouling organism is difficult to adhere on seal face, so that reaching prevents what marine fouling organism from adhering to
Purpose.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.
Claims (8)
1. a kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance, including rotating ring, stationary ring as mechanical seal,
The seal face outer end of the rotating ring and stationary ring is used as low-pressure side, that is, downstream as high-pressure side, that is, upstream, seal face the inner,
It is characterized in that：The high-pressure side of at least one seal face upstream is equipped with the sealing of a circle closing in the rotating ring or stationary ring
Dam, and several pumping grooves are circumferentially evenly distributed with the seal face surface, the first end of the pumping groove extends to close
The high-pressure side in end-blocking face, second end extend to the low-pressure side of seal face；Region between adjacent two pumping grooves is close
Seal weir；The pumping groove slot bottom and sealing weir surface are machined with the micro-bulge cluster of imitative shark skin surface pattern, the dimpling
The dislocation arrangement of body cluster until being uniformly covered with whole sealing weir and pumping groove slot bottom, put down each other by several by the micro-bulge cluster
Capable dimpling body unit composition.
A kind of 2. end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance as claimed in claim 1, it is characterised in that：
The micro-bulge cluster is arranged in parallel along its short-axis direction successively by several dimpling body units, and with the length of group dimpling body unit
Along its short-axis direction from center to both ends decrescence；The adjacent micro-bulge cluster on sealing weir surface is end to end along its short-axis direction, and
Straight line where the micro-bulge cluster short axle on sealing weir surface crosses the center of circle of seal face；Its short-and-medium axle refer in micro-bulge cluster with it is micro-
The vertical symmetry axis of convex body unit center axis；Major axis refers to the central shaft of most long dimpling body unit in micro-bulge cluster.
A kind of 3. end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance as claimed in claim 2, it is characterised in that：
The seal face surface is the consistent smooth circular arc of bending direction along its circumferentially uniformly distributed multiple pumping groove, pumping groove
Groove, and the second end notch of pumping groove is than first end slot opening.
A kind of 4. end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance as claimed in claim 3, it is characterised in that：
The micro-bulge cluster long axis direction of the bottom surface of the pumping groove is consistent with the arc groove water conservancy diversion direction, the sealing weir
Micro-bulge cluster long axis direction on surface is consistent with the tangent to periphery direction of basic circle where arc groove.
A kind of 5. end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance as claimed in claim 3, it is characterised in that：
The micro-bulge cell cross-section is the combined shaped of rectangle and two semicircles, described two semicircle center of circle institutes of dimpling body unit
Straight line is overlapped with dimpling body unit major axis, the perpendicular bisector of two semicircle circle center line connectings of dimpling body unit passes through the seal face center of circle
And overlapped with micro-bulge cell short axis.
A kind of 6. end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance as claimed in claim 5, it is characterised in that：
Spacing of the pumping groove first end apart from the end face upstream is 0.5-3mm, groove depth 0.1-1mm.
A kind of 7. end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance as claimed in claim 6, it is characterised in that：
The uniformly distributed pumping groove number in the seal face surface is 3-25.
A kind of 8. end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance as claimed in claim 4, it is characterised in that：
It it is 0.05-0.3 μm with the gap between the dimpling body unit in group micro-bulge cluster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199807.6A CN106838323B (en) | 2017-03-30 | 2017-03-30 | A kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199807.6A CN106838323B (en) | 2017-03-30 | 2017-03-30 | A kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106838323A CN106838323A (en) | 2017-06-13 |
| CN106838323B true CN106838323B (en) | 2018-05-04 |
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| CN201710199807.6A Active CN106838323B (en) | 2017-03-30 | 2017-03-30 | A kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228196B (en) * | 2017-07-06 | 2018-08-21 | 浙江工业大学 | Augmentation of heat transfer type ternary bending micro-bulge end surface mechanical sealing structure |
| CN110500409B (en) * | 2019-09-11 | 2024-06-07 | 浙江工业大学 | Micro-convex body cluster surface mechanical seal with function of reducing microbial adhesion |
| CN116324237A (en) * | 2020-09-29 | 2023-06-23 | 伊格尔工业股份有限公司 | Sliding member |
| CN113090486B (en) * | 2021-04-02 | 2022-08-16 | 燕山大学 | Axial plunger pump piston shoe friction pair with shark skin-imitated structure |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6902168B2 (en) * | 2002-03-19 | 2005-06-07 | Eagle Industry Co., Ltd. | Sliding element |
| JP5314425B2 (en) * | 2006-10-30 | 2013-10-16 | 京セラ株式会社 | Sliding member and manufacturing method thereof |
| JP5020334B2 (en) * | 2007-11-29 | 2012-09-05 | 京セラ株式会社 | Sliding members, mechanical seal rings, mechanical seals and forceset valves |
| JP5456772B2 (en) * | 2009-05-25 | 2014-04-02 | イーグル工業株式会社 | Sealing device |
| CN101793324B (en) * | 2009-08-06 | 2011-12-28 | 浙江工业大学 | Hydrodynamic mechanical seal structure for three-dimensional fish scale-like texture bottom surface type groove |
| CN103016743B (en) * | 2012-12-13 | 2015-07-08 | 江苏大学 | Mechanical seal capable of implementing zero wear, zero leakage and preventing solid particles |
| CN103062411B (en) * | 2012-12-24 | 2015-08-26 | 浙江工业大学 | Microgroove double-layer composite groove deep end surface mechanical seal structure |
| CN103122998B (en) * | 2013-02-26 | 2015-10-28 | 浙江工业大学 | Imitative sharkskin streamline type groove end surface mechanical sealing structure |
| CN205605823U (en) * | 2016-03-24 | 2016-09-28 | 中国石油大学(华东) | Satisfy just direction changing imitative fin type groove terminal surface mechanical seal structure |
| CN206754365U (en) * | 2017-03-30 | 2017-12-15 | 浙江工业大学 | A kind of end surface mechanical sealing structure of imitative shark skin surface three-dimensional appearance |
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2017
- 2017-03-30 CN CN201710199807.6A patent/CN106838323B/en active Active
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