CN110486475A - A kind of wave bullet formula mechanically-sealing apparatus - Google Patents
A kind of wave bullet formula mechanically-sealing apparatus Download PDFInfo
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- CN110486475A CN110486475A CN201910865583.7A CN201910865583A CN110486475A CN 110486475 A CN110486475 A CN 110486475A CN 201910865583 A CN201910865583 A CN 201910865583A CN 110486475 A CN110486475 A CN 110486475A
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- 238000007789 sealing Methods 0.000 title claims abstract description 104
- 230000003068 static effect Effects 0.000 claims abstract description 94
- 239000007788 liquid Substances 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
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- 238000005272 metallurgy Methods 0.000 description 1
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- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
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- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The present invention provides a kind of wave bullet formula mechanically-sealing apparatus, it include: end cap, axle sleeve and the first double seals structure and the second double seals structure that axial series setting between the end cap and axle sleeve is set, the first double seals structure has the first ripple static components and the first spring static components of radial series setting, and the second double seals structure has the second ripple static components and second spring static components of radial series setting.First ripple static components play main sealing function, and in the case where the first ripple static components seal failure, the first spring static components play sealing and block medium is leaked to close to atmospheric side, guarantee the leakproofness of the first double seals structure；Be conducive to while having the advantages that bellow seal, sealing structure fails caused by being also prevented from the failure of bellow seal, guarantees the validity of sealing, prevents medium by the first double seals structure, improves mechanical seal operation stability and reliability.
Description
Technical field
The invention belongs to technical field of mechanical, and in particular to a kind of wave bullet formula mechanically-sealing apparatus.
Background technique
Mechanical seal is as the great industrial sectors of national economy rotation such as petrochemical industry, coal chemical industry, salt chemical engineering, electric power, metallurgy, nuclear power
The key foundations components such as rotating machinery such as machine, pump, kettle, performance quality directly decide the operation shape of mating rotation rotating machinery
State and service efficiency.It is close to supporting machinery as rotation rotating machinery pump develops towards operating conditions such as high parameters such as high pressure, high temperature, high speed
The operation stability and reliability of envelope are put forward higher requirements.
Typical Representative of the metal bellows mechanical seal as mechanical seal is high parameter such as high pressure, high temperature etc. using work
Preference scheme under condition, is widely applied, such as hydrogenation plant high temperature and pressure fluid power turbomachinery.It is demonstrate,proved through practice
Bright, under the operating conditions such as high pressure, high temperature, power thermal deformation easily occurs for metal bellows, due to metal bellows wave plate welding technique, weldering
The defects of seam is because of residual stress cannot bear excessive power thermal deformation, and otherwise weld seam is easily broken, and causes the auxiliary of bellows
Sealing function failure, occurs radial leakage；Weld seam is seriously broken, and can be further resulted in metal bellows and be lost bullet, entire mechanical close
Envelope failure, leads to processing medium serious leak, parking maintenance；It seriously will lead to the accidents such as fire, explosion, or even personnel caused to hurt
It dies, seriously threatens the life security of field personnel.
Summary of the invention
The present invention is directed to the above-mentioned problems in the prior art, eliminates under high parameter such as high pressure, high temperature operating condition because of wave
The fracture of line pipe causes the failures such as leakage to influence, and improves mechanical seal operation stability and reliability, extends service life.
To reach above-mentioned technical purpose, the present invention is implemented with the following technical solutions:
A kind of wave bullet formula mechanically-sealing apparatus, comprising: end cap, axle sleeve and the setting axial series between the end cap and axle sleeve
The the first double seals structure and the second double seals structure being arranged, the first double seals structure have radial string
Join the first ripple static components and the first spring static components of setting, the second double seals structure has radial series
The the second ripple static components and second spring static components being arranged.
Further, the first ripple static components are located at the outside of the first spring static components, and described second
Ripple static components are located at the inside of second spring static components.
Further, the first ripple static components are located at the inside of the first spring static components, and described second
Ripple static components are located at the outside of second spring static components.
Further, the first double seals structure and the second double seals structure are using design back-to-back.
Further, the first double seals structure also has the first rotating ring, on first rotating ring be equipped with
The first ripple static components match sealing the first rotating ring external seal face, match with the first spring static components
First rotating ring inner sealing surface of sealing.
Further, the first chamber of annular is formed between the first ripple static components and the first spring static components
Body, the internal side diameter in the first rotating ring external seal face offers the first outer dynamic pressure groove being connected to first cavity, in institute
The internal side diameter for stating the first rotating ring inner sealing surface offers dynamic pressure groove in first.
Further, it is equipped on the first rotating ring between the first rotating ring external seal face and the first rotating ring inner sealing surface
The first groove of annular.
Further, the first ripple static components include the first outer stationary ring, close to the first of the described first outer stationary ring
Front stall, the first back seat far from first stationary ring, the first bellows for connecting first front stall and the first back seat；First bullet
Spring static components include stationary ring in first, the first spring, first pushing away of being arranged in described first between stationary ring and the first spring
Ring；Connection structure is being equipped in first front stall and described first between stationary ring.
Further, the connection structure be in first front stall and described first stationary ring one of them on be arranged
The lug of radial protrusion, in first front stall and described first in the another one of stationary ring setting and the lug phase
The concave arc matched, the lug are located in the concave arc.
Further, the lug is axially disposed.
Further, the second chamber of annular is formed between the second ripple static components and second spring static components
Body, the mechanically-sealing apparatus further include the sensor for detecting liquid level in second cavity.
Further, the second double seals structure also has the second rotating ring, on second rotating ring be equipped with
The second ripple static components match sealing the second rotating ring inner sealing surface, match with the second spring static components
Second rotating ring external seal face of sealing.
Further, the outside diameter in the second rotating ring external seal face offers the second dynamic pressure groove.
Further, it is equipped on the first rotating ring between the second rotating ring external seal face and the second rotating ring inner sealing surface
The second groove of annular.
Further, the second ripple static components include stationary ring in second, close to second of stationary ring in described second
Front stall, the second bellows far from the second back seat of stationary ring, connection second front stall and the second back seat in described second；Second
Spring static components include the second outer stationary ring, second spring, be arranged between the described second outer stationary ring and second spring second
Throw-out collar；The second stop pin is equipped between second throw-out collar and end-cap assembly.
Wave bullet formula mechanically-sealing apparatus provided by the invention has radial series by the first double seals structure of setting
The the first ripple static components and the first spring static components being arranged, the first ripple static components play main sealing function,
In the case where the first ripple static components seal failure, the first spring static components play sealing and block medium is to close to big
Gas side leakage, guarantees the leakproofness of the first double seals structure；Be conducive to be also prevented from while having the advantages that bellow seal
Sealing structure fails caused by the failure of bellow seal, guarantees the validity of sealing, prevents medium close by the first Double End
Seal structure；Simultaneously by the first double seals structure and the second double seals structure of setting axial series, in medium
Leaking tool on direction, there are four sealings, improve mechanical seal operation stability and reliability, extend service life.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of wave bullet formula mechanically-sealing apparatus proposed by the invention；
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at the first double seals structure；
Fig. 3 is the enlarged structure schematic diagram in Fig. 1 at the second double seals structure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
In the description of the present invention, it should be noted that radially using the direction close to main shaft as "inner", far from main
The direction of axis is "outside"；Term is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply relatively important
Property；Define " first ", the feature of " second " can explicitly or implicitly include one or more of the features.In this hair
In bright description, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
- Fig. 3 refering to fig. 1 is one embodiment of wave bullet formula mechanically-sealing apparatus proposed by the invention, as shown in Figure 1,
Cavity 53 and end cap 23 surround seal chamber, and industrial media is equipped in seal chamber；Main shaft is rotatable to be located in seal chamber, and two
Seal chamber is stretched out at end；It is set with axle sleeve 16 on main shaft, wave bullet formula mechanically-sealing apparatus is equipped between end cap 23 and axle sleeve 16.
The side of wave bullet formula mechanically-sealing apparatus is atmospheric side in the axial direction, and the other side is side medium, and right side is atmospheric side in attached drawing, left
Side is side medium.Axle sleeve 16 is sleeved on main shaft, and third trundle 14,16 inner radius of axle sleeve are equipped with third sealing ring 19.
Shown in Figure 1, a kind of wave bullet formula mechanically-sealing apparatus includes: cavity 53, end cap 55 and is arranged in cavity 53
The the first double seals structure 100 and the second double seals structure 200 that axial series are arranged between end cap 55, close to Jie
Second double seals structure 200 of the first double seals structure 100 of matter side and close atmospheric side, wherein the first both-end
The the first ripple static components 110 and the first spring static components 120 that there are surface seal structure 100 radial series to be arranged, second
Double seals structure 200 has the second ripple static components 210 and second spring static components 220 of radial series setting.
First ripple static components 110 play main sealing function in the first double seals structure 100, in the first ripple stationary ring
In the case where 110 seal failure of component, the first spring static components 220 play sealing function and block medium is to close to atmospheric side
Leakage eliminates under high parameter such as high pressure, high temperature operating condition because bellows fracture causes the failures such as leakage to influence, guarantees first pair
The leakproofness of end face seal structure 100；Be conducive to while having the advantages that bellow seal, be also prevented from the failure of bellow seal and
Caused sealing structure failure, guarantees the validity of sealing, prevents medium from passing through the first double seals structure 100；Lead to simultaneously
The the first double seals structure 100 and the second double seals structure 200 for crossing setting axial series, in the leakage direction of medium
There are four sealings for upper tool, improve mechanical seal operation stability and reliability, extend service life.
It is preferably provided with, the first ripple static components 110 are located at the outside of the first spring static components 120, and the second ripple is quiet
Ring assemblies 210 are located at the inside of second spring static components 220, on the direction of dielectric leakage, are followed successively by the first ripple stationary ring
Component 110, the first spring static components 120, the second ripple static components 210, second spring static components 220；First both-end
In surface seal structure 100, the outside of the first ripple static components 110 is processing medium.It ensure that the first double seals structure
100 and second in double seals structure 200, on the leakage direction of medium or countercurrent direction, first reaches ripple static components,
So that ripple static components play sealing function.
Shown in Figure 2, the first double seals structure 100 has the first rotating ring 10, and the first rotating ring 10 suit is fixed on
On axle sleeve 16, the assembled end of the first rotating ring 10 and axle sleeve 16 is equipped with the first sealing ring 15, guarantees the first rotating ring 10 and axle sleeve
Leakproofness between 16；Rotary power transmitting is carried out by the first trundle 14 between the first rotating ring 10 and axle sleeve 16.Second
Double seals structure 200 has the second rotating ring 35, and the second rotating ring 35 suit is fixed on axle sleeve 16, the second rotating ring 35 and axle sleeve
16 matching parts are equipped with the second sealing ring 34, and carry out axially position by positioning sleeve 36；Positioning sleeve 36 and axle sleeve 16 pass through spiral shell
Line connection provides rotary power for the second rotating ring 35.First double seals structure 100 and the second double seals structure 200
It is arranged on axle sleeve 16 using back-to-back design, that is, the first rotating ring 10 close to side medium, the second rotating ring 35 is arranged in axle sleeve
Close to atmospheric side on 16, the first ripple static components 110 and the second ripple static components 210 are close to each other, 10 He of the first rotating ring
Second rotating ring 35 is located remotely from each other；Design is so that the first double seals structure 100 and the second double seals structure 200 back-to-back
Seal face bear internal pressure, be conducive to increase sealing performance.
On the first rotating ring 10 be equipped with the first ripple static components 110 match sealing the first rotating ring external seal face 8,
Match the first rotating ring inner sealing surface 12 of sealing with the first spring static components 120, that is, the first ripple static components 110
It is sealed with the cooperation of the first rotating ring 10 with the first spring static components 120, using two stationary rings of a rotating ring and radial series
Component cooperation sealing, is conducive to the simplification of structure, and is conducive to the consistency of inside and outside concatenated two sealings.Preferably, first
Rotating ring external seal face 8 and the first concordantly setting of rotating ring inner sealing surface 12, the first rotating ring external seal face 8 and the first rotating ring inner sealing surface
12 are located on same sagittal plane.On the first rotating ring 10 between first rotating ring external seal face 8 and the first rotating ring inner sealing surface 12
First groove 11 equipped with annular is conducive to the performance for improving the first rotating ring 10, avoids influence of thermal deformation during the work time
Sealing performance.
First ripple static components 110 include the first outer stationary ring 6, close to the first outer stationary ring 6 the first front stall 5, separate the
First back seat 3 of one outer stationary ring 6, the first bellows 4 for connecting the first front stall 5 and the first back seat 3, one end of the first bellows 4
It is fixed with the sealing of the first front stall 5, the other end and the sealing of the first back seat 3 are fixed；To prevent processing medium from leaking, 5 He of the first front stall
The matching part of first outer stationary ring 6 installs the 4th sealing ring 7, the 5th sealing of matching part installation of the first back seat 3 and end cap 23
Circle 2；First back seat 3 is fastened to end cap 23 by the hexagon socket head cap screw 1 of circumference uniform distribution, prevents the first ripple static components 110
Rotation.First spring static components 120 include stationary ring 17 in first, the first spring 21, stationary ring 17 and first are arranged in first
The first throw-out collar 20 between spring 21, the matching part of stationary ring 17 and end cap 23 is equipped with the 6th sealing ring 18 in first；First
Interior stationary ring 17 and the cooperation of the first rotating ring inner sealing surface 12 seal, and the first outer stationary ring 6 and the cooperation of the first rotating ring external seal face 8 seal.
Connection structure is being equipped in first front stall 5 and first between stationary ring 17, is being avoided in first before stationary ring 17 and first
The rotation of seat 5, so that the torque of the first front stall 5 is given in the first rotating ring external seal face 8, a part is transmitted to stationary ring 17 in first
On, reduce the torque passed on the first bellows 4；Be conducive to the stability of the first front stall 5 simultaneously.Specifically, connection structure is
The lug 501 of radial protrusion is set on the first front stall 5, the concave arc that the setting of stationary ring 17 matches with lug 501 in first
171, lug 501 is located in concave arc 171.Lug 501 and concave arc 171 are axially disposed, that is, lug 51 and concave arc 171 it
Between can bear torsion.The circumferential direction for being preferably provided at the internal side diameter of the first front stall 5 is equipped with 3-4 lug 501, lug 501
Radius is 3-6mm；Circumferentially setting concave arc 171, the radius of concave arc 171 are 4-7mm to the outside diameter of stationary ring 17 in first.
In other embodiments, concave arc can also be set on the first front stall 5, lug is set on stationary ring 17 in first.
The first cavity 22 of annular is formed between the first ripple static components 110 and the first spring static components 120；In
The internal side diameter in the first rotating ring external seal face 8 offers the first outer dynamic pressure groove 9 being connected to the first cavity 22, close in the first rotating ring
The internal side diameter of cover 12 offers dynamic pressure groove 13 in first.First double seals structure 100 and the second double seals structure
It is third cavity 23 between 200, dynamic pressure groove 13 is connected to third cavity 23 in first；Obstruction liquid entrance is offered on end cap 55
51 and obstruction liquid outlet 50, into third cavity 23, input has the obstruction liquid of certain pressure, and dynamic pressure groove 13 is by third in first
Obstruction liquid pump in cavity 23 is sent into the first cavity 22.When in the first cavity 22 without pressure, the first outer dynamic pressure groove 9 is moved first
The processing medium that ring external seal face 8 leaks carries out reverse pumping；When in the first cavity 22 full of obstruction liquid, fluid dynamic pressure groove 9 will hinder
Plug liquid is pumped to processing medium side, realizes processing medium zero leakage；Stationary ring 17 matches in first rotating ring inner sealing surface 12 and first
Sealing surface and the sealing surface that matches of the first rotating ring external seal face 8 and the first outer stationary ring 6 be respectively formed liquid-film lubrication machinery respectively
Sealing.When the first bellows 4 generation welding seam breaking in the first ripple static components 110, the first bellows 4 is caused to lose auxiliary
When sealing function, although processing medium leaks in the first cavity 22, sealing in the first spring static components 120 and the first rotating ring
The sealing surface that face 12 is formed functions well as sealing function, prevents processing medium from leaking in third cavity 23, significantly solves
Because bellows fracture leads to the stability and reliability of seal assembly in the influence of the failures such as leakage.
It is shown in Figure 3, the of annular is formed between the second ripple static components 210 and second spring static components 220
Two cavitys 28, equipped with the sensor 46 for detecting liquid level in the second cavity 28；The liquid in the second cavity 28 can be monitored in real time
Position situation is conducive to the seal failure for finding the second ripple static components 210 in time.
Second double seals structure 200 also has the second rotating ring 35, is equipped on the second rotating ring 35 quiet with the second ripple
Ring assemblies 210 match sealing the second rotating ring inner sealing surface 33, with second spring static components 220 match the second of sealing
Rotating ring external seal face 40.Cooperated using two static components of a rotating ring and radial series and sealed, is conducive to the simplification of structure,
And be conducive to the consistency of inside and outside concatenated two sealings.Preferably, the second rotating ring inner sealing surface 33 and the second rotating ring external seal
Face 40 is concordantly arranged, and the second rotating ring inner sealing surface 33 and the second rotating ring external seal face 40 are located on same sagittal plane.Second is dynamic
The second rotating ring 35 between ring inner sealing surface 33 and the second rotating ring external seal face 40 is equipped with the second groove 54 of annular, is conducive to
The performance for improving the second rotating ring 35 avoids influence of thermal deformation sealing performance during the work time.
Second ripple static components 210 include stationary ring 32 in second, second front stall 30 of stationary ring 32, separate in second
Second bellows 29 of the second back seat 26 of stationary ring 32, connection the second front stall 30 and the second back seat 26 in second；To prevent third
Obstruction liquid leakage in cavity 23, the matching part of stationary ring 32 installs the 7th sealing ring 31, In in the second front stall 30 and second
The matching part of second tailstock 26 and end cap 23 installs the 8th sealing ring 25；One end of second bellows 29 and the second front stall 30 are close
Sealing is determined, the other end and the sealing of the second back seat 26 are fixed.To prevent the second ripple static components 210 from rotating with the second rotating ring 35,
The first stop pin 27 is equipped between the second back seat 26 and end cap 23.
Second spring static components 220 include the second outer stationary ring 42, second spring 24, are arranged in the second outer stationary ring 42 and the
The second throw-out collar 44 between two springs 24；Second throw-out collar 44 and the second outer 42 matching part of stationary ring install the 9th sealing ring 43, the
Two throw-out collars 44 install the tenth sealing ring 45 with 23 matching part of end cap；To prevent second spring static components 220 with the second rotating ring
35 rotations, are arranged the second stop pin 47 between the second throw-out collar 44 and end cap 23.Outside diameter in the second rotating ring external seal face 40 is opened
Equipped with the second dynamic pressure groove 41, the second dynamic pressure groove 41 is connected to atmospheric side.Second ripple static components 210 and second spring stationary ring group
The radially arranged in series of part 220 forms the second double seals structure 200；Second ripple static components 210 are located at second spring
The inside of static components 220；When the sealing surface of stationary ring 32 and the second rotating ring inner sealing surface 33 does not leak in second, second
Outer stationary ring 42 and the sealing surface in the second rotating ring external seal face 40 are using surrounding air as lubricating fluid, by the pump of the second dynamic pressure groove 41
Function is sent to form gas film lubrication mechanical seal；Stationary ring 32 and the sealing surface of the second rotating ring inner sealing surface 33 leak in second
Or Yin Boweng pipe welding seam breaking, whens leakage etc. occurs, the sealing surface in the second outer stationary ring 42 and the second rotating ring external seal face 40 is to leak
Obstruction liquid be lubricating fluid, by the reverse pumping function of the second dynamic pressure groove 41, realize that the zero of the second double seals structure 200 lets out
Leakage.
The installation of end cap 23 is fixed, end cap 23 is connected to by cavity 53 by bolt 48 and nut 49；Positioning sleeve 36
It is fixed on main shaft, the circumferentially radially installed jackscrew 37 of positioning sleeve 36 connects axle sleeve 16, the first rotating ring 10 and the second rotating ring 35
Fixed on main shaft；Consider cartridge mechanical seal, one end of locating plate 38 be fastened on end cap 23 by bolt 39,
The other end of locating plate 38 is installed to positioning sleeve 36, and sealing stationary parts and rotary part are connected.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (10)
1. a kind of wave bullet formula mechanically-sealing apparatus characterized by comprising end cap, axle sleeve and setting are in the end cap and axis
The the first double seals structure and the second double seals structure that axial series are arranged between set, first double seals
Structure has the first ripple static components and the first spring static components of radial series setting, the second double seals knot
Structure has the second ripple static components and second spring static components of radial series setting.
2. wave bullet formula mechanically-sealing apparatus according to claim 1, which is characterized in that the first ripple static components position
In the outside of the first spring static components, the second ripple static components are located at the inside of second spring static components.
3. wave bullet formula mechanically-sealing apparatus according to claim 1, which is characterized in that the first double seals structure
With the second double seals structure using design back-to-back.
4. wave bullet formula mechanically-sealing apparatus according to claim 1, which is characterized in that the first double seals structure
Also there is the first rotating ring, the first rotating ring of the sealing that matches with the first ripple static components is equipped on first rotating ring
External seal face, match the first rotating ring inner sealing surface of sealing with the first spring static components.
5. wave bullet formula mechanically-sealing apparatus according to claim 4, which is characterized in that the first ripple static components and
Formed between first spring static components annular the first cavity, the internal side diameter in the first rotating ring external seal face offer with
First outer dynamic pressure groove of the first cavity connection, offers dynamic pressure in first in the internal side diameter of the first rotating ring inner sealing surface
Slot.
6. wave bullet formula mechanically-sealing apparatus according to claim 4, which is characterized in that in the first rotating ring external seal face
And first the first rotating ring between rotating ring inner sealing surface is equipped with the first groove of annular.
7. wave bullet formula mechanically-sealing apparatus according to any one of claims 1 to 6, which is characterized in that first ripple
Static components include the first outer stationary ring, after the first front stall of the described first outer stationary ring, the first of separate first stationary ring
First bellows of seat, connection first front stall and the first back seat；The first spring static components include first in stationary ring,
First spring, the first throw-out collar being arranged in described first between stationary ring and the first spring；In first front stall and described the
Connection structure is equipped in one between stationary ring.
8. wave bullet formula mechanically-sealing apparatus according to claim 7, which is characterized in that the connection structure is described the
The lug of radial protrusion is set in one of them of stationary ring in one front stall and described first, in first front stall and described first
The concave arc to match with the lug is set in the another one of interior stationary ring, and the lug is located in the concave arc.
9. wave bullet formula mechanically-sealing apparatus according to any one of claims 1 to 6, which is characterized in that second ripple
The second cavity of annular is formed between static components and second spring static components, the mechanically-sealing apparatus further includes for examining
Survey the sensor of liquid level in second cavity.
10. wave bullet formula mechanically-sealing apparatus according to any one of claims 1 to 6, which is characterized in that second both-end
Surface seal structure also has the second rotating ring, is equipped on second rotating ring and matches sealing with the second ripple static components
The second rotating ring inner sealing surface, match the second rotating ring external seal face of sealing with the second spring static components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865583.7A CN110486475B (en) | 2019-09-12 | 2019-09-12 | Bow-elastic mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865583.7A CN110486475B (en) | 2019-09-12 | 2019-09-12 | Bow-elastic mechanical sealing device |
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| CN110486475A true CN110486475A (en) | 2019-11-22 |
| CN110486475B CN110486475B (en) | 2024-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910865583.7A Active CN110486475B (en) | 2019-09-12 | 2019-09-12 | Bow-elastic mechanical sealing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623121A (en) * | 2020-07-01 | 2020-09-04 | 鸿浩泵业有限公司 | Parallel double-end-face mechanical seal |
| CN112145427A (en) * | 2020-09-08 | 2020-12-29 | 洛普兰机械设备(宁波)有限公司 | Integrated mechanical seal for process screw compressor |
| CN113944758A (en) * | 2021-12-02 | 2022-01-18 | 河南理工大学 | Hierarchical linkage rotary feeding sealing device |
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| CN112145427B (en) * | 2020-09-08 | 2022-07-19 | 洛普兰机械设备(宁波)有限公司 | Packaging type mechanical seal for process screw compressor |
| CN113944758A (en) * | 2021-12-02 | 2022-01-18 | 河南理工大学 | Hierarchical linkage rotary feeding sealing device |
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