CN107387766A - A kind of carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture - Google Patents
A kind of carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture Download PDFInfo
- Publication number
- CN107387766A CN107387766A CN201710748374.5A CN201710748374A CN107387766A CN 107387766 A CN107387766 A CN 107387766A CN 201710748374 A CN201710748374 A CN 201710748374A CN 107387766 A CN107387766 A CN 107387766A
- Authority
- CN
- China
- Prior art keywords
- imitative
- conservancy diversion
- carbon ring
- water conservancy
- helicla flute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
-
- 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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Outer Garments And Coats (AREA)
Abstract
A kind of carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture, the axial side of the carbon ring seal is sealing hydraulic fluid side, and opposite side is separation gas side, and the pressure of the separation gas is less than 0.05~0.15MPa of sealing liquid；The internal diameter side surface of the carbon ring seal by the rotating shaft surface of sealing machine with forming a pair of sealing pairs, the internal diameter side surface is made up of circumferential uniform smooth water-wetted surface 1, imitative fin water conservancy diversion projection 2 and pumping hydrophobic surface helicla flute 3, the imitative fin water conservancy diversion projection 2 is opened between smooth water-wetted surface 1 and pumping hydrophobic surface helicla flute 3, and the bottom surface of the pumping hydrophobic surface helicla flute 3 coated with hydrophobic coating and is machined with segment-shaped hydrophily micro-bulge.
Description
Technical field
The invention belongs to non-contacting seal field, is related to a kind of utilize and imitates desert beetle back surfaces texture and surface material
Hydrophilic or hydrophobic property the carbon ring sealing structure of material, it will be received to reach containing liquid component in humid gas or atomization sealing medium
Collect, and the purpose of liquid pumped back sealing medium side will be collected by directionality texture, carbon ring seal is because its is simple in construction, maintenance
It is convenient, it is not necessary to complicated lubricating and cooling system, to be mainly used in the shaft end seal of the rotation turbine plant such as petrochemical industry, metallurgy
With bearing seal.
Background technology
There are three kinds of forms in the primary seal commonly used at present in technique oil free screw compressor, wherein carbon ring seal relies on small
Gap reducing pressure by regulating flow realizes sealing function, because its is simple in construction, be easily installed maintenance, good economy performance and it is wide in technical screw compressor
General use；In addition, carbon ring seal is also used widely in the sealing of gas compressor shaft end and its bearing seal.But carbocyclic ring
Sealing is run in use, there is also some urgent problems to be solved there is self-defect at the scene of reality.Current carbocyclic ring
Structure can be monoblock type, or split-type.Designed multi-clove type carbocyclic ring structure in Chinese patent CN2011201380,
One annulus is encircled into by the sealing ring for being cut into multistage, the otch of cut every section sealing ring is angular cut, and every section
Otch is to carry out average cutting along same direction, and the tangent line of angular cut is the tangent to periphery of sealing ring inner periphery, is ensured close
Carbocyclic ring inwardly slides axle sleeve to seal ring along angular cut after wear, seal clearance is kept constant.But carbon ring seal
It is larger to there is gap, leakage rate is larger at high speed, while gap crosses conference and makes flowing dynamic pressure small, causes from alignment
Ability.When carbon ring seal is applied to bearing seal, because the sealability to bearing oil is poor, lubricating oil is often led to
Scurrying into compressor causes gas to carry, and directly endangers the safety in operation and stability of unit.
The content of the invention
The present invention to overcome in the carbon ring seal of prior art exist gap it is larger caused by leakage rate is big and dynamic pressure effect
The deficiencies of poor, the action principle based on bionical desert beetle back surfaces texture, there is provided a kind of face seal is better, dynamic pressure
Effect preferably has hydrophilic and hydrophobic water conservancy diversion pumping carbocyclic ring structure.
The technical scheme is that：
A kind of carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture, the axial side of the carbon ring seal is sealing
Hydraulic fluid side, opposite side are separation gas side, and the pressure of the separation gas is less than 0.05~0.15MPa of sealing liquid；The carbon
The internal diameter side surface of ring sealing by the rotating shaft surface of sealing machine with forming a pair of sealing pairs, and the internal diameter side surface is by circumferential equal
The smooth water-wetted surface 1 of cloth, imitative fin water conservancy diversion projection 2 and pumping hydrophobic surface helicla flute 3 form, and several piece imitates fin water conservancy diversion
Projection 2 is arranged between smooth water-wetted surface 1 and pumping hydrophobic surface helicla flute 3, the basal plane of imitative fin water conservancy diversion projection 2
Same surface is in the smooth water-wetted surface 1, the curved surface for meeting gas side of the imitative fin water conservancy diversion projection 2 has hydrophilic spy
Property, the surface for imitating fin water conservancy diversion projection 2 forms guiding gutter；The bottom surface of the pumping hydrophobic surface helicla flute 3 is coated with thin
Water paint and it is machined with segment-shaped hydrophily micro-bulge；Described guiding gutter and pumping hydrophobic surface helicla flute are from sealing
Hydraulic fluid side to separation gas side penetrates.
Further, angle α=35 ° between the tangent line of the imitative fin water conservancy diversion projection 2 and the smooth water-wetted surface 1~
55°；The curved surface for meeting gas side of the imitative fin water conservancy diversion projection 2 tilts to helicla flute slightly, and inclination angle is 1 °~5 °.
Further, the groove depth of the pumping hydrophobic surface helicla flute is 5~20 μm, and the segment-shaped of bottom land processing is hydrophilic
Property a diameter of 5~20 μm of micro-bulge, the height of projection of the segment-shaped hydrophily micro-bulge is 1~10 μm, the segment-shaped
Angle β=1 °~10 ° between the center line and groove bottom of hydrophily micro-bulge.
Further, the smooth water-wetted surface 1, imitative fin water conservancy diversion projection 2 and the edge of pumping hydrophobic surface helicla flute 3
Circumferentially distributed length ratio is 1.5:3.5:5.0.
The present invention operation principle be：
Hydrophilic and hydrophobic property based on imitative desert beetle back smooth surface or Surface Texture, propose one kind by hydrophilic light
Sliding surface, imitative fin water conservancy diversion is raised and the bionical carbon ring seal surface of the composition containing hydrophobic micro-bulge groove bottom helicla flute three is single
Member, this unit constitute novel bionic carbon ring sealing structure along carbon ring seal inner surface period profile.Wherein, carbocyclic ring internal diameter
The coating with hydrophilic properties of the smooth water-wetted surface laying in side ring surface, its operation principle are exactly imitative desert beetle back skin parent
Water-based smooth surface collects the principle of water droplet, makes gas-liquid mixed phase medium to the full extent (containing humid gas or atomization sealing medium)
In liquid portion condense in smooth water-wetted surface, reduce leakage of the liquid medium to compressor gas side or separation gas side
Amount.In addition, imitative fin water conservancy diversion is raised and the operation principle of the segment-shaped micro-bulge of spiral groove bottom is also based on imitative desert beetle
Back skin hydrophily smooth surface collects the mechanism of water droplet, it is therefore an objective to so that convex in smooth water-wetted surface and imitative fin water conservancy diversion
The liquid for playing upper accumulation is entered in helicla flute by rotating inertia force, by condensation liquid blowback under the pump action of helicla flute
To by sealing liquid side medium；The gas face of meeting of imitative fin water conservancy diversion projection 2 tilts to helicla flute slightly, and inclination angle is 1 °~5 °, with
Function well as the effect that condensed liquid is imported to helicla flute.At the same time, the hydrophily segment-shaped micro-bulge of spiral groove bottom is also
Play a part of aiding in condensation fog, further strengthen the effect that gas takes off liquid, it is ensured that separation gas moisture content is minimum.Helicla flute
Bottom surface is applied as hydrophobic surface, prevents stop of the condensed liquid in groove bottom, and maximum possible shortens stop of the condensed liquid in groove
Time.
The advantages of the present invention are mainly manifested in：(1) the smooth hydrophily that carbocyclic ring internal diameter side ring surface uses applies
Layer surface, it may be such that gas-liquid mixed phase medium produces condensation, condensed liquid is accumulated on shiny surface, prevents leakage of the liquid to gas；
(2) the imitative fin water conservancy diversion opened up is raised, the common carbocyclic ring raised compared to water conservancy diversion is not opened up, on the one hand can effectively make to contain moisture
Body produces condensation, and the water conservancy diversion condensation face on the other hand rolled slightly can be more timely and effectively by the guiding fluid helicla flute of accumulation
In area, preventing whole sealing area fluid thickness from including, liquid measure is excessive to produce too high friction torque and frictional heat, prevents fluid film
Rigidity reduction or deficiency.(3) hydrophobic property of the pumping groove bottom opened up plays timely discharge opeing and acted on, and groove bottom
Hydrophily segment-shaped micro-bulge further to producing condensation effect containing humid gas, increases the circulation of pumped back hydraulic fluid side, drop
Low liquid leakage amount, reduce delay of the liquid in groove area, it is most important that can effectively avoid in compressor gas band liquid and
Bearing oil is scurried into unit, improves the safety in operation and stability of whole unit.
Brief description of the drawings
Fig. 1 is a kind of three-dimensional signal of the hydrophobic discharge opeing carbocyclic ring of imitative desert beetle pumping of case study on implementation of the present invention
Figure；
Fig. 2 is that the raised schematic three dimensional views of fin water conservancy diversion are imitated in Fig. 1；
Fig. 3 a are the arrangement schematic diagrams of Fig. 1 middle and upper reaches pumping drain tank bottom land texture, and the segment-shaped that Fig. 3 b are Fig. 3 a is hydrophilic
The schematic diagram of property micro-bulge.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings
Referring to Fig. 1 to Fig. 3：A kind of carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture, the carbon ring seal
Axial side is sealing hydraulic fluid side, and opposite side be separation gas side, the pressure of the separation gas less than seal liquid 0.05~
0.15MPa；The internal diameter side surface of the carbon ring seal by the rotating shaft surface of sealing machine with forming a pair of sealing pairs, the internal diameter
Side surface is made up of circumferential uniform smooth water-wetted surface 1, imitative fin water conservancy diversion projection 2 and pumping hydrophobic surface helicla flute 3,
Several piece is imitated fin water conservancy diversion projection 2 and is listed between smooth water-wetted surface 1 and pumping hydrophobic surface helicla flute 3, and imitative fin is led
Basal plane and the smooth water-wetted surface 1 of stream projection 2 be in same surface, and the imitative fin water conservancy diversion projection 2 meets gas side
Curved surface has water-wet behavior, and the surface for imitating fin water conservancy diversion projection 2 forms guiding gutter；The pumping hydrophobic surface helicla flute 3
Bottom surface coated with hydrophobic coating and be machined with segment-shaped hydrophily micro-bulge；The described hydrophobic table of guiding gutter and pumping
Surface helix groove penetrates from sealing hydraulic fluid side to separation gas side.
Angle α between the tangent line and the smooth water-wetted surface 1 of the curved surface for meeting gas side of imitative fin water conservancy diversion projection 2=
35 °~55 °；The curved surface for meeting gas side of the imitative fin water conservancy diversion projection 2 tilts to helicla flute slightly, and inclination angle is 1 °~5 °.
Further, the groove depth of the pumping hydrophobic surface helicla flute is 5~20 μm, and the segment-shaped of bottom land processing is hydrophilic
Property a diameter of 5~20 μm of micro-bulge, the height of projection of the segment-shaped hydrophily micro-bulge is 1~10 μm, the segment-shaped
Angle β=1 °~10 ° between the center line and groove bottom of hydrophily micro-bulge.
The smooth water-wetted surface 1, imitative fin water conservancy diversion projection 2 and pumping hydrophobic surface helicla flute 3 are circumferentially distributed
Length ratio be 1.5:3.5:5.0.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection model of the invention
Enclose and be not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes people in the art
Member according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (4)
1. a kind of carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture, the axial side of the carbon ring seal is sealing fluid
Side, opposite side are separation gas side, and the pressure of the separation gas is less than 0.05~0.15MPa of sealing liquid；Its feature exists
In：The internal diameter side surface of the carbon ring seal by the rotating shaft surface of sealing machine with forming a pair of sealing pairs, the internal side diameter table
Face is made up of circumferential uniform smooth water-wetted surface 1, imitative fin water conservancy diversion projection 2 and pumping hydrophobic surface helicla flute 3, several piece
Imitative fin water conservancy diversion projection 2 is arranged between smooth water-wetted surface 1 and pumping hydrophobic surface helicla flute 3, it is convex to imitate fin water conservancy diversion
The basal plane and the smooth water-wetted surface 1 for playing 2 are in same surface, the curved surface for meeting gas side of the imitative fin water conservancy diversion projection 2
With water-wet behavior, the surface for imitating fin water conservancy diversion projection 2 forms guiding gutter；The bottom of the pumping hydrophobic surface helicla flute 3
Face is coated with hydrophobic coating and is machined with segment-shaped hydrophily micro-bulge；Described guiding gutter and pumping hydrophobic surface spiral shell
Spin slot penetrates from sealing hydraulic fluid side to separation gas side.
2. the carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture as claimed in claim 1, it is characterised in that：It is described imitative
Angle α=35 °~55 ° between the tangent line of fin water conservancy diversion projection 2 and the smooth water-wetted surface 1；The imitative fin water conservancy diversion is convex
Rise 2 the curved surface for meeting gas side slightly to helicla flute tilt, inclination angle be 1 °~5 °.
3. the carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture as claimed in claim 2, it is characterised in that：On described
The groove depth of trip pumping hydrophobic surface helicla flute is 5~20 μm, a diameter of the 5~20 of the segment-shaped hydrophily micro-bulge of bottom land processing
μm, the height of projection of the segment-shaped hydrophily micro-bulge is 1~10 μm, the center line of the segment-shaped hydrophily micro-bulge with
Angle β=1 °~10 ° between groove bottom.
4. the carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture as claimed in claim 3, it is characterised in that：The light
Sliding water-wetted surface 1, imitative fin water conservancy diversion projection 2 and the circumferentially distributed length ratio of pumping hydrophobic surface helicla flute 3 are 1.5:
3.5:5.0。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710748374.5A CN107387766B (en) | 2017-08-28 | 2017-08-28 | Carbon ring sealing structure of desert beetle-imitated back shell surface texture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710748374.5A CN107387766B (en) | 2017-08-28 | 2017-08-28 | Carbon ring sealing structure of desert beetle-imitated back shell surface texture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107387766A true CN107387766A (en) | 2017-11-24 |
| CN107387766B CN107387766B (en) | 2019-12-24 |
Family
ID=60345464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710748374.5A Active CN107387766B (en) | 2017-08-28 | 2017-08-28 | Carbon ring sealing structure of desert beetle-imitated back shell surface texture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387766B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965577A (en) * | 2017-12-28 | 2018-04-27 | 大连威尔博合金科技有限公司 | A kind of superhard material built-up welding mechanical seal ring |
| WO2022071090A1 (en) * | 2020-09-29 | 2022-04-07 | イーグル工業株式会社 | Sliding component |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2021382A1 (en) * | 1969-05-09 | 1970-11-19 | Angus George Co Ltd | Shaft seal |
| US6409177B1 (en) * | 1999-08-23 | 2002-06-25 | Freudenberg-Nok General Partnership | Rotary shaft seal |
| JP2003056718A (en) * | 2001-08-22 | 2003-02-26 | Koyo Seiko Co Ltd | Oil seal |
| CN104769338A (en) * | 2012-10-23 | 2015-07-08 | Nok株式会社 | Oil seal |
| CN207333704U (en) * | 2017-08-28 | 2018-05-08 | 浙江工业大学 | A kind of carbon ring sealing structure of imitative desert beetle dorsal shield Surface Texture |
-
2017
- 2017-08-28 CN CN201710748374.5A patent/CN107387766B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2021382A1 (en) * | 1969-05-09 | 1970-11-19 | Angus George Co Ltd | Shaft seal |
| US6409177B1 (en) * | 1999-08-23 | 2002-06-25 | Freudenberg-Nok General Partnership | Rotary shaft seal |
| JP2003056718A (en) * | 2001-08-22 | 2003-02-26 | Koyo Seiko Co Ltd | Oil seal |
| CN104769338A (en) * | 2012-10-23 | 2015-07-08 | Nok株式会社 | Oil seal |
| CN207333704U (en) * | 2017-08-28 | 2018-05-08 | 浙江工业大学 | A kind of carbon ring sealing structure of imitative desert beetle dorsal shield Surface Texture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965577A (en) * | 2017-12-28 | 2018-04-27 | 大连威尔博合金科技有限公司 | A kind of superhard material built-up welding mechanical seal ring |
| WO2022071090A1 (en) * | 2020-09-29 | 2022-04-07 | イーグル工業株式会社 | Sliding component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107387766B (en) | 2019-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102588600B (en) | Profiled groove end surface non-contact mechanical seal with backflow function | |
| CN106439023B (en) | A kind of cosine curve type mechanical seal end surface structure | |
| CN104791381B (en) | The concentric radial plain bearing formed with interface sliding | |
| CN107387766A (en) | A kind of carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture | |
| CN106870562B (en) | A kind of taper dynamic and hydrostatic bearing sub-assembly of diameter of axle surface-texturing | |
| CN104454980B (en) | Energy-saving radial sliding bearing | |
| CN104421093B (en) | The hydraulic turbine and piping | |
| CN2534429Y (en) | Double-row same direction fluid dynamic pressure tank upper-stream pumping mechanical seal | |
| CN103133697B (en) | Can the dovetail groove end surface mechanical sealing structure of bidirectional rotation | |
| CN103016743A (en) | Mechanical seal capable of implementing zero wear, zero leakage and preventing solid particles | |
| CN207333704U (en) | A kind of carbon ring sealing structure of imitative desert beetle dorsal shield Surface Texture | |
| CN206958248U (en) | A kind of low leakage helicla flute liquid film mechanical sealing end face structure | |
| CN100557197C (en) | A kind of mixed flow type turbine vane | |
| CN201916486U (en) | Negative-pressure profiled groove end face mechanical sealing structure | |
| CN102705247A (en) | Multistage mine submersible pump | |
| CN205978439U (en) | Cosine curve type mechanical seal terminal surface structure | |
| CN207178686U (en) | Zero leakage pumping formula mechanical seal | |
| CN208236901U (en) | A kind of textured gas bush(ing) bearing of journal surface | |
| CN202451434U (en) | Centrifugal compressor provided with separation structures | |
| CN106763779B (en) | A kind of mechanical seal ring with more zigzag helicla flutes | |
| CN211116602U (en) | Sliding vane surface structure, sliding vane and compressor | |
| CN208919329U (en) | A kind of axial cross section is the novel spiral groove mechanical seal of right angled triangle | |
| CN206770615U (en) | It is a kind of to be pumped into formula Spiral Groove Dry Gas Seals by Use structure with convergence type seal clearance | |
| CN105065675A (en) | Seal ring with streamline groove end face and mechanical seal device | |
| CN114922978A (en) | Liquid membrane sealing ring with super-hydrophilic, super-smooth and flow guide characteristics and processing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |