CN105952900A - Sealing ring with wave-shaped groove end surface and mechanical sealing device - Google Patents
Sealing ring with wave-shaped groove end surface and mechanical sealing device Download PDFInfo
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- CN105952900A CN105952900A CN201610536014.4A CN201610536014A CN105952900A CN 105952900 A CN105952900 A CN 105952900A CN 201610536014 A CN201610536014 A CN 201610536014A CN 105952900 A CN105952900 A CN 105952900A
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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
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Devices (AREA)
Abstract
Sealing ring and mechanically-sealing apparatus with waveform groove end face. The sealing ring is that the slot that evenly arranged same form is divided by the isolated part with transverse plane height is offered on seal face, and circumferential surface expansion shape of the shape of each slot on seal face at any radius may be characterized as relational expression:
. The sealing ring of the structure type can make end face fluid film have bigger opening force and higher rigidity and bearing capacity, have better end face hydrodynamic effect.
Description
Technical field
The present invention relates to end face fluidic sealing members and there is the face seals of described potted component, being concretely
There is the sealing ring of waveform groove end face and use the mechanically-sealing apparatus of this sealing ring.
Background technology
Mechanical sealing technology is widely used to answering of the axial end face seal of numerous rotating machineries with its superior performance
In with, the pump of such as various types, compressor, decompressor, seperator, reactor etc. rotate the shaft end seal of class machine.At present
In the basic structure of the fluid end face non-contact mechanical seal device having been reported and/or using, generally include stationary ring
The composition group such as (stationary ring), rotating ring (rotating ring), stationary seat, axle sleeve, trundle, tolerance ring, clamping sleeve, throw-out collar, spring, stop pin
Part.Stationary ring and rotating ring coaxial line are oppositely arranged, and its relative end face is sealing surface.Stationary ring radially empty set on stationary seat, with
Static ring seat keeps geo-stationary, and it is axially supported by throw-out collar and spring floating, and circumference is positioned by stop pin, makes stationary ring edge only
Axially free floating and can not rotate with the axis.Rotating ring with radially by tolerance ring swelling on the external cylindrical surface of axle sleeve, axially and axle
The step surface contact of set compacted set axial compression, circumference is fixed together with axle sleeve by trundle, makes the rotating ring can be with axle sleeve
Synchronous rotary together with rotary shaft.
Mechanical seal can be divided into contact and contactless two kinds at present.Non-contact mechanical seal is according to its seal face
The generation type of fluid film opening force is different, can be roughly divided into again dynamic pressure type and hydrostatic profile two kinds.Dynamic pressure type non-contact type mechanical
Sealing usually utilizes medium flowing between sealing surface to form sufficient hydrodynamic effect, opens obtaining enough fluid films
Qi Li and fluid film rigidity.The dynamic pressure effect of end face fluid form is main and sealing surface relative rotation speed, dielectric viscosity, sealing surface table
Face structure is correlated with, and wherein sealing surface relative rotation speed and dielectric viscosity depend on using the field condition sealing unit, skill often
In art more improvable be sealing surface surface texture.Current common sealing surface surface texture arranges measure, is to seal at it
On one or both sides end face in end face, offer and be divided into uniformly arrangement by the same form isolated part with transverse plane height
Type slot form, wherein the end face seal with forms such as the helicla flute of equivalent gullet depth, T-shape slot, wavy surface grooves is the most typical.How
Strengthening the dynamic pressure effect of end face fluid, to increase end face fluid film bearing capacity and fluid film rigidity, thus lift-off seal runs
Stability, finally increases the service life, and is one of the Main way of non-contact mechanical seal end face groove type research.
In traditional groove design and research process, it is usually a kind of grooved of first design, then selectes some property sealed
Energy index amount, is optimized trench structure and parameter, to obtaining best end face fluid film characteristic.Its thinking be first to
Determine grooved, the most again this grooved parameter and sealing are associated.This allow for grooved setting can not actively, well with end
The characteristics match of face fluid film, thus it is difficult to obtain optimal end face hydrodynamic effect, also cannot obtain bigger fluid
Film rigidity and opening force.
Summary of the invention
For above-mentioned situation, present invention firstly provides a kind of sealing ring with waveform groove end face, and further provide for
A kind of mechanically-sealing apparatus using this sealing ring, so that end face fluid film has bigger opening force and higher rigidity and holds
Loading capability, has more preferable end face hydrodynamic effect.
The present invention has the sealing ring of waveform groove end face, also in offering on seal face by having transverse plane height
Isolated part be divided into the groove of the uniformly same form of arrangement.Wherein, the grooved of single groove is on seal face at any radius
Side face expansion shape may be characterized as following relational expression 1.:
①。
Formula 1. in:hFor the trench bottom any point at this radius in groove relative to the depth value in the axial direction of transverse plane, lead to
Chang Keweiλ2 times, be preferably≤100 μm；
λBeing worth in 1/2 of the axial depth capacity relative to transverse plane for groove, its value generally can be 1～300 μm, preferably 1～50
μm；
aFor the wave period coefficient of groove,a=(2π/N)1-b , it is to form factorbThe wave period change caused is adjusted, its
Concrete value bybWithNDetermine so that it is mate along point cycles formed such as seal face circumferences with by groove quantity；
bFor the form factor of groove,b≤ 0.8, the leeward side of the groove in the Shi Yigecao district of its impact and along sealing ring direction of rotation
The ratio of the circumferential arc length of cell wall and the circumferential arc length of whole groove, i.e. the circumferential arc length of leeward side cell wall/(circumference of leeward side cell wall
The circumferential arc length of arc length+windward side cell wall) relevant circumferential profiled outline molded line state；
kFor described isolation part coefficient, expression is the circumferential width ratio having groove portion in the wave period of a groove with slotless portion
The change of value.1. can be derived by formula, its ratio relation is 1:(k 1/b -1).WhenkWhen taking 1, the waveform district week of seal face
Upwards by cloth tankful；kWhen value increases, in a seal face waveform district, circumference You Cao district will reduce, and slotless district will increase；
WhenkWhen value increases to 2.5, in the waveform district of a seal face, the region that there are about about 40% is You Cao district, if continued
IncreasekValue, the fluid film dynamic pressure effect of seal face will significantly reduce.Therefore,kPreferred span be 1～2.5；
NFor the quantity of the groove of arrangement on whole seal face；
rRadius for the arbitrary place of trench bottom；
r 0 For seal face external diameter；
r g The radius of groove and slotless district boundary is radially had for seal face；
θFor the edge molded line of groove leeward side cell wall and the edge of windward side cell wall along sealing ring direction of rotation on seal face
Polar angle variable between the molded line two intersection points respectively and at seal face periphery.It is said that in general,θ=0～2π/(N×k 1 /b ), a complete reference waveform district can be symbolized；
φFor the edge molded line of the groove footpath of arbitrary point in the radial direction of intersection point, with the edge molded line of groove at seal face periphery
Angle between direction, generallyφ=0～π/N,Illustrate the relation between the different trends of groove and seal face radial direction.By
In for the cross-sectional width of groove, generally use the groove of wide form, therefore described on seal face the trend of groove with
The trend of groove edge molded line is consistent.Such as, for the groove of spiral line type trend,φCan be by formula
Calculating is tried to achieve, whereinβ=10°~30°；Learn through a large amount of tests, excessive or too smallβValue all can obtain abundance to seal face
Fluid film rigidity produce impact, and work asβWhen value is preferably in the range of 15 ° ~ 18 °, seal face fluid film rigidity is even more ideal.
For the groove moved towards for linear type on seal face, it may include radially move towards or with radial direction, there is the oblique of angle
To multi-forms such as trends.Wherein, when radially moving towards,φPerseverance is zero；With radially there is angle oblique move towards time,φCan press
FormulaCalculating is tried to achieve, thereinγTrend and the leeward side cell wall type of groove for groove
Line angle variables between the radial direction of seal face outside diameter starting point.
On the basis of the above, a kind of preferably scheme is, the form factor in described relational expressionb=0.1~0.8.Waveform system
The value of number affects the described leeward side cell wall circumference arc length of groove and the change of windward side cell wall circumference arc length, and two sides
The profile of waved surface.WhenbDuring less than 0.1, the impact of this coefficient can be omited substantially；WhenbAfter 0.8, appreciable impact is met
The circumferential arc length size of wind side channel wall, can cause the dynamic pressure effect of whole groove fluid medium to reduce.
Particularly, when the ratio of the leeward side cell wall in the cell wall of both sides, trench bottom bosom with the circumferential arc length of windward side cell wall
For 1:(21/b -1), time, can have more preferably sealing effectiveness.
Owing to the diameter of seal face can affect sealing medium leakage rate and seal face the most to a certain extent with wave amplitude
Fluid film dynamic pressure performance, therefore the seal face circumference leakage path of sealed diameter larger side is longer, can fit for controlling leakage rate
When using less wave amplitude；The seal face circumference leakage path of sealed diameter smaller side is shorter, for obtain bigger opening force and
Rigidity, can suitably use bigger wave amplitude.Consider, the most described relational expression 1. middle wave amplitude variable λ representing groove,
I.e. groove is in the value of the axial depth capacity 1/2 relative to transverse plane, with the inside radius of annular seal end facer iRatio be 0.01～
5e-3(that is 0.01～5 10-3), it is that one more preferably selects.
1. after being determined desired single groove design by described relational expression, it is possible to according to required on seal face
Whole groove that the quantity of the groove of equipment, formation uniformly arrangement and structural shape are identical.
Due in the structural parameters of described seal face, groove numberNThe hydrodynamic effect of seal face can be affected.Along with
Groove number increases, and opening force, leakage rate and liquid film stiffness increase the most rapidly, then increases slowly and the most steady.By a large amount of real
Test and learn, in the case of meeting each requirement, although the quantity of rippleNThe biggest sealing property is the best, but comprehensive process cost etc. are each
Plant factor, the generally quantity of groove on seal faceNIt is 6～30 to be that one the most suitably selects.
Further, on the basis of the above, on described seal face, the degree of depth of the concrete form of groove, i.e. groove, permissible
It is positioned at seal face upper fluid film for the form of the increasing or decreasing the most from inside to outside at seal face, the i.e. opening of groove
Pressure upstream side or pressure downstream side.
On the basis of the above-mentioned sealing ring with waveform groove end face, present invention also offers one and there is ripple linear groove end
The mechanically-sealing apparatus in face.Described sealing device includes the rotating ring that can rotate with rotary shaft and keeps relative with stationary seat
Static stationary ring, rotating ring is oppositely arranged with coaxial line end face with stationary ring, and its axially opposing end face is seal face, institute
Stating at least one in rotating ring and stationary ring is the above-mentioned sealing ring with waveform groove end face.
On this basis, interregional the holding level with both hands of described groove is not offered between described rotating ring and the seal face of stationary ring
Gap, face is 0～0.025 millimeter, preferably 0.002～0.025 millimeter, preferably 0.002～0.005 millimeter or 0.01～
0.025 millimeter.
The sealing ring with waveform groove end face of the present invention and corresponding mechanically-sealing apparatus, can be arranged as required to into
The layout of multiple seal style, such as fan in the middle of mechanical single seal, double seals, tandem seal (more than two-stage), series connection band
Palace (more than two-stage), also can be with other seal style composition combined labyrinth and carbon gland knots such as floating-ring seal, carbon ring seal, labyrinth seals
Structure.
Calculate and test result all shows, have employed the above-mentioned mechanical seal with ripple linear groove end face sealing ring of the present invention
Device, it is possible to increase substantially the dynamic pressure effect of end face fluid film, makes to have bigger opening force, rigidity on seal face and hold
Loading capability, hence it is evident that there is preferably fluid film characteristic than the seal face of traditional structure forms.With to internal diameter as 69.25mm, outward
Footpath is 76mm, seal face slotless district radius radiallyr g Close for the normal spiral groove of 70.6mm and ripple linear groove of the present invention
As a example by end-blocking face, comparing calculation finds: when the seal face gap between rotating ring and stationary ring is 1 micron, ripple of the present invention
The seal face medium opening force of linear groove about increases about 22% than the medium opening force of normal spiral groove, and fluid film rigidity increases
About 300～600%；When seal face gap is 2 microns, the sealing surface medium opening force of ripple linear groove of the present invention is than common spiral shell
The medium opening force of spin slot increases about 8%, and fluid film rigidity increases about 90%, and the structure indicating the present invention obviously increases
End face hydrodynamic effect.
Below in conjunction with the detailed description of the invention of embodiment, the foregoing of the present invention is described in further detail again.
But this should not being interpreted as, the scope of the above-mentioned theme of the present invention is only limitted to Examples below.Thinking without departing from the above-mentioned technology of the present invention
In the case of thinking, the various replacements made according to ordinary skill knowledge and customary means or change, all should be included in this
In bright scope.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of mechanically-sealing apparatus with ripple linear groove end face sealing ring.
Fig. 2 is the amagnified partial perspective schematic diagram of Fig. 1 sealing ring medium wave linear groove.
Fig. 3 is the structural representation after circumferentially launching along the outer radius ripple linear groove of Fig. 2 sealing ring.
Fig. 4 is the structural representation that a kind of spiral line type moves towards groove.
Fig. 5 is a kind of linear structural representation moving towards groove.
Detailed description of the invention
Embodiment 1
A kind of mechanically-sealing apparatus with ripple linear groove end face sealing ring as shown in Figure 1, has and can rotate with rotary shaft 17
Rotating ring 2 and keep the stationary ring 1 of geo-stationary, rotating ring 2 to set so that coaxial line end face is relative with stationary ring 1 with stationary seat 3
Putting, its axially opposing end face is seal face.Stationary ring 1 and rotating ring 2 coaxial line are arranged, and its relative end face is formed and seals
Face.Radially empty set is in static ring seat 3 for stationary ring 1, and axially by throw-out collar 8 and spring 9 float support, circumference is determined by stop pin 10
Position, therefore stationary ring 1 free floating the most vertically.Rotating ring 2 radially by tolerance ring 6 swelling on the external cylindrical surface of axle sleeve 4,
Axially contacting with the step surface of axle sleeve 4 and compacted set 7 is through locking nut 18 axial compression, circumference is solid with axle sleeve 4 by trundle 5
Being scheduled on together, therefore rotating ring 2 can be with axle sleeve 4 and rotary shaft 17 synchronous rotary.Axle sleeve 4 is radially sleeved on its inner hole surface
On the external cylindrical surface of rotary shaft 17, axially contacting with step surface at the shaft shoulder in rotary shaft 17, circumference is by trundle 16 and rotation
Axle 17 connects.
The seal face of stationary ring 1 and/or rotating ring 2 is provided with ripple linear groove, for controlling to flow into Jie of ripple linear groove
Quality, improves end face fluid film dynamic pressure effect, between its stationary ring 1 and rotating ring 2 in the case of leakage rate does not exceeds standard as far as possible
The sealing surface gap width formed ish 0.It is said that in general, gaph 0It is 0～0.025 millimeter, specifically comprehensively can examine according to practical situation
Consider various factors opposite end plane clearance suitably to adjust.Such as, sealing for standard machinery, two seal faces are substantially at
Gapless direct contact condition；Slotless interval gap for gas non-contacting seal end faceh 0Normally about 0.002～0.005
Millimeter, and for its end face slotless interval gap of some liquid film non-contact mechanical sealh 0Typically about 0.01～0.025 milli
Rice.
As shown in Figures 2 to 4, the described ripple linear groove 11 offered on the seal face of stationary ring 1 and/or rotating ring 2,
The pattern of each groove 11 is identical, the isolation part 14 with transverse plane height be separated into the arrangement of uniform shape.Described each groove 11 exists
On seal face, 1. the side face expansion shape at any radius may be characterized as following relational expression:
①。
Formula 1. inhFor the trench bottom any point at this radius in groove 11 relative to the degree of depth in the axial direction of transverse plane
Value, is 40 μm；λIt is worth in 1/2 of the axial depth capacity relative to transverse plane for groove 11,λ=20 μm, andλWith in sealing surface
Radiusr iRatio be 0.132e-3(that is 0.132 10-3)；bFor the form factor of groove 11,b=0.6；aWave period for groove 11
Coefficient,a=(2π/N)1-b =0.772；kFor described isolation part coefficient, value is 1.4, therefore by isolation part coefficientkAnd waveform
Coefficientb, it is also possible to determine that the circumferential arc length summation circumferentially having waveform groove on seal face is total with the circumferential arc length without waveform groove
The ratio of sum is 1:(k 1/b -1)=1:1.75；NFor the arrangement quantity of groove 11 on whole seal face, preferably 12 grooves；rFor groove 11
The radius at arbitrary place, bottom；r iIt is the internal diameter of seal face,r iFor 69.25mm；r 0 It is seal face external diameter, for 76mm；r g It is close
The end-blocking face diameter radius having groove 11 region and slotless district 15 boundary upwards, for 70.6mm；θFor on seal face along close
The edge molded line of the groove 11 leeward side cell wall 12 of seal ring direction of rotation and the edge molded line of windward side cell wall 13 respectively with sealed end
Two intersection point P at periphery, the polar angle variable between Q.θFor leeward along the groove of sealing ring direction of rotation on seal face
Pole between the edge molded line of side channel wall and the edge molded line of windward side cell wall two intersection points respectively and at seal face periphery is sat
Mark angle variables, different with the position at different radii in groove 11, according to the shape design to required groove,θShould be 0～2π/(N
×k 1/b Value in the range of), and form a continuous print circumference waveform.
For edge molded line radial direction of intersection point at seal face periphery of groove, with the footpath of arbitrary point on this edge molded line
Angle between direction, generallyφ=0～π/N.Such as, in the structure of groove 11 that a kind of spiral line type shown in Fig. 4 moves towards,
In the periodic regime of one ripple linear groove, edge molded line hands over seal face external diameter at P point, and M point is arbitrary point on edge molded line,
Angle between seal face center O and P point and M point radially line is, and can be asked by formula:,
Whereinβ=15 °～18 °, particularlyβ =18°。
The circumference of groove 11 is made up of windward side cell wall 13 and leeward side cell wall 12 two parts along sealing ring direction of rotation.Meet
Wind side channel wall 13 edge profiled outline is demarcated in waveform lowest part A point with leeward side cell wall 12 edge profiled outline, and leeward
Side channel wall 12 is 1:(2 with the ratio of the circumferential arc length of windward side cell wall 131/b -1) =1:2.175。
The opening of groove 11 can be located at pressure upstream side or the pressure downstream side of seal face upper fluid film, and groove is relative to holding level with both hands
The degree of depth in face can be the increasing or decreasing the most from inside to outside at seal face.The opening of groove 11 can be located at seal face
Radially inner side or radial outside side face, and be preferably non-penetrating by 15 block in slotless district with transverse plane height
Groove, slotless district 15 may be located at the radially inner side of seal face or radial outside, and (degree of depth of the groove 11 shown in figure is to seal
Being incremented by the most from inside to outside of end face, and it is opened on the radial outside side face of seal face, slotless district 15 is positioned at seal face
Radially inner side form).When the opening of groove 11 is positioned at the pressure upstream side of fluid film, it is possible to increase holding of seal face fluid film
Carry performance, use relatively broad, when the opening of groove 11 is positioned at the pressure downstream side of fluid film, then can reduce the stream of seal face
Body leakage rate, can be suitable in the place needing pumping.
Embodiment 2
Being from the different places of embodiment 1 structure, groove 11 is linear trend on seal face, including radially or and footpath
To the oblique trend with suitable angle.Wherein relational expression 1. inφBy formula
Calculate, thereinγFor the trend of groove 11 and leeward side cell wall 12 molded line of groove in the radial direction side of seal face outside diameter starting point P
To angle variables, as shown in Figure 5.The structure of remainder is consistent with embodiment 1.Clearly for radially move towards
For linear type groove,φPerseverance is zero.
Claims (10)
1. there is the sealing ring of waveform groove end face, seal face offers by the isolation part (14) with transverse plane height point
It is divided into the groove (11) of the uniformly same form of arrangement, it is characterized by: the grooved of described single groove (11) is any on seal face
1. side face expansion shape at radius may be characterized as following relational expression:
1.,
In formula:hFor the trench bottom any point at this radius in groove (11) relative to the depth value in the axial direction of transverse plane；λFor
Groove (11) is in 1/2 value of the axial depth capacity relative to transverse plane；aFor the wave period coefficient of groove (11),a=(2π/N)1-b ；bFor the form factor of groove (11),b≤0.8；kFor described isolation part coefficient, it is preferablyk=1～2.5；NFor at whole seal face
The quantity of the groove (11) of upper arrangement；rRadius for arbitrary place, groove (11) bottom；r 0 For seal face external diameter；r g For sealed end face diameter
Upwards there is the radius of groove (11) and slotless district (15) boundary；θFor groove (11) along sealing ring direction of rotation on seal face
The edge molded line of leeward side cell wall (12) and the edge molded line of windward side cell wall (13) respectively with sealed end periphery at two friendships
Polar angle variable between point (P, Q),θ=0～2π/(N×k 1/b )；φEdge molded line for groove is handed at seal face periphery
Angle between the radial direction of arbitrary point (M) in the radial direction of point (P), and this edge molded line,φ=0～π/N。
2. sealing ring as claimed in claim 1, is characterized by: groove (11) described relational expression 1. in form factorb=0.1
～0.8.
3. sealing ring as claimed in claim 1, is characterized by: rotate along sealing ring in the cell wall of both sides, bosom, groove (11) bottom
The leeward side cell wall (12) in direction is 1:(2 with the ratio of the circumferential arc length of windward side cell wall (13)1/b -1)。
4. sealing ring as claimed in claim 1, is characterized by: circumferentially have the circumferential arc length summation of waveform groove on seal face
It is 1:(with the ratio of the circumferential arc length summation without waveform groovek 1/b -1)。
5. sealing ring as claimed in claim 1, is characterized by:
(1) groove (11) described in for move towards for spiral line type on seal face time, relational expression 1. inφBy formulaCalculate, whereinβ=10 °～30 °, it is preferablyβ=15 °～18 °；Or
(2) groove (11) described in for move towards for linear type on seal face time, relational expression 1. inφBy formulaCalculate, thereinγTrend and the leeward side cell wall (12) of groove for groove (11)
Molded line angle variables between the radial direction of seal face outside diameter starting point (P).
6. sealing ring as claimed in claim 1, is characterized by: described relational expression 1. middle groove (11) is at the axle relative to transverse plane
Value to depth capacity 1/2λWith sealing surface inside radiusr iRatio be 0.01～5e-3.
7. sealing ring as claimed in claim 1, is characterized by: the quantity of groove (11) on described relational expression 1. middle seal faceN
It is 6～30.
8. the sealing ring as described in one of claim 1 to 7, is characterized by: groove (11) is relative to the degree of depth of transverse plane, for close
Being incremented by the most from inside to outside of end-blocking face, or successively decrease.
9. there is the mechanically-sealing apparatus of ripple linear groove end face, including the rotating ring (2) that can rotate with rotary shaft (17) with quiet
Ring seat (3) keeps the stationary ring (1) of geo-stationary, and rotating ring (2) is oppositely arranged with coaxial line end face with stationary ring (1), its axle
It is seal face to relative end face, it is characterized by: at least one in described rotating ring (2) and stationary ring (1) is wanted for right
Seek one of 1 to 8 described sealing ring.
10. mechanically-sealing apparatus as claimed in claim 9, is characterized by: described rotating ring (2) is close with stationary ring (1)
The interregional transverse plane gap (h of described groove (11) is not offered between end-blocking face0) be 0～0.025 millimeter, preferably 0.002～
0.025 millimeter, preferably 0.002～0.005 millimeter or 0.01～0.025 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610536014.4A CN105952900B (en) | 2016-07-10 | 2016-07-10 | Sealing ring and mechanically-sealing apparatus with waveform groove end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610536014.4A CN105952900B (en) | 2016-07-10 | 2016-07-10 | Sealing ring and mechanically-sealing apparatus with waveform groove end face |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105952900A true CN105952900A (en) | 2016-09-21 |
| CN105952900B CN105952900B (en) | 2018-01-09 |
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ID=56900390
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610536014.4A Expired - Fee Related CN105952900B (en) | 2016-07-10 | 2016-07-10 | Sealing ring and mechanically-sealing apparatus with waveform groove end face |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439037A (en) * | 2016-11-18 | 2017-02-22 | 西华大学 | Seal ring and mechanical seal device with combination groove end |
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| US4836561A (en) * | 1987-02-17 | 1989-06-06 | University Of New Mexico | Wavy-tilt-dam seal ring |
| US5092612A (en) * | 1986-10-28 | 1992-03-03 | Pacific Wietz Gmbh & Co. Kg | Contactless pressurizing-gas shaft seal |
| US5947481A (en) * | 1996-08-02 | 1999-09-07 | Flowserve Management Company | Wavy face ring |
| CN102322528A (en) * | 2011-09-26 | 2012-01-18 | 清华大学 | The asymmetric waviness end face of a kind of active and static pressure combined type fluid machinery sealing configuration |
| CN202327105U (en) * | 2011-11-09 | 2012-07-11 | 四川日机密封件股份有限公司 | Mechanical sealing device for fixed taper type waveform curved surface |
| US20140203517A1 (en) * | 2013-01-23 | 2014-07-24 | Flowserve Management Company | Mechanical face seal with a reverse trapezoidal face pattern |
-
2016
- 2016-07-10 CN CN201610536014.4A patent/CN105952900B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5092612A (en) * | 1986-10-28 | 1992-03-03 | Pacific Wietz Gmbh & Co. Kg | Contactless pressurizing-gas shaft seal |
| US4836561A (en) * | 1987-02-17 | 1989-06-06 | University Of New Mexico | Wavy-tilt-dam seal ring |
| US5947481A (en) * | 1996-08-02 | 1999-09-07 | Flowserve Management Company | Wavy face ring |
| CN102322528A (en) * | 2011-09-26 | 2012-01-18 | 清华大学 | The asymmetric waviness end face of a kind of active and static pressure combined type fluid machinery sealing configuration |
| CN202327105U (en) * | 2011-11-09 | 2012-07-11 | 四川日机密封件股份有限公司 | Mechanical sealing device for fixed taper type waveform curved surface |
| US20140203517A1 (en) * | 2013-01-23 | 2014-07-24 | Flowserve Management Company | Mechanical face seal with a reverse trapezoidal face pattern |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439037A (en) * | 2016-11-18 | 2017-02-22 | 西华大学 | Seal ring and mechanical seal device with combination groove end |
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| Publication number | Publication date |
|---|---|
| CN105952900B (en) | 2018-01-09 |
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