CN206845897U - Mechanically-sealing apparatus - Google Patents
Mechanically-sealing apparatus Download PDFInfo
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- CN206845897U CN206845897U CN201720242079.8U CN201720242079U CN206845897U CN 206845897 U CN206845897 U CN 206845897U CN 201720242079 U CN201720242079 U CN 201720242079U CN 206845897 U CN206845897 U CN 206845897U
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Abstract
The utility model provides a kind of mechanically-sealing apparatus.The mechanically-sealing apparatus includes the rotating ring and stationary ring for being sheathed on rotating shaft.The stationary ring includes first end face.The rotating ring includes second end face.The first end face and second end face contact are set.The first end face or the second end face are provided with helicla flute.The mechanically-sealing apparatus further comprises the monitoring device for sensing caused acoustic emission signal between the first end face and the second end face.Contact situation of the rotating ring with stationary ring can effectively be monitored by the monitoring device, improve the accuracy of monitoring.
Description
Technical field
Mechanical field is the utility model is related to, more particularly to a kind of mechanically-sealing apparatus.
Background technology
Mechanical seal is typically used as the shaft end seal of rotating machinery, and it is by a pair or several rotating ring and stationary ring (is claimed
For sealing ring) end-surface friction pair rotated against is formed, rub auxiliary air gap very little, so that dynamic sealing is achieved.It is in addition, quiet
Only or the leakage path of fine motion is obstructed by secondary sealing part.
As the shaft end seal element of key, the failure of mechanical seal may bring severe economic loss even personnel's wound
Die.Traditional mechanical seal can not effectively understand situation about being contacted during friction subtask, can not be broken down in friction pair first
Phase is remedied in time, so as to cause larger loss.
Utility model content
Based on this, it is necessary to the problem of can not effectively understanding the contact situation of friction pair for traditional mechanical seal, carry
For a kind of mechanically-sealing apparatus for the contact situation that can effectively understand friction pair.
A kind of mechanically-sealing apparatus, including the rotating ring and stationary ring of rotating shaft are sheathed on, the stationary ring includes first end face, described
Rotating ring includes second end face, and the first end face and second end face contact are set, the first end face or second end
Face is provided with helicla flute, the mechanically-sealing apparatus further comprise being used for sensing the first end face and the second end face it
Between caused acoustic emission signal monitoring device.
In one of the embodiments, multiple frictions are further provided between the first end face and the second end face
Structure, the multiple friction structure are arranged at the first end face and/or the second end face.
In one of the embodiments, when the helicla flute is arranged at the second end face, multiple friction structures
Set location include：Set at the edge of the first end face, it is circumferentially spaced at the edge of the internal diameter of the second end face
Set or be arranged on above-mentioned position simultaneously.
In one of the embodiments, the helicla flute is arranged at the first end face, and multiple friction structures are set
Seated position includes：Set at the edge of the second end face, in the circumferentially spaced setting in the edge of the internal diameter of the second end face
Or above-mentioned position is arranged on simultaneously.
In one of the embodiments, multiple friction structures are along the first end face or the circumference of the second end face
Uniform intervals are set, or are set along the circumferential non-uniform spacing of the first end face or the second end face.
In one of the embodiments, the friction structure is bulge-structure, groove structure or coating structure.
In one of the embodiments, the monitoring device is acoustic emission sensor.
In one of the embodiments, the monitoring device is arranged in the rotating ring.
In one of the embodiments, the mechanically-sealing apparatus includes multiple monitoring devices, multiple monitorings
Device is arranged at intervals in central angles such as the axial same circumference in same section of the rotating ring.
In one of the embodiments, the mechanically-sealing apparatus also includes being used to receive the nothing that the monitoring device is sent
The reception device of line signal.
In one of the embodiments, the first end face and/or second end face are further provided with micron-sized sealing
Enhancing structure, the sealing enhancing structure include the one or more in waviness structure, tapered configuration and bowl configurations.
The mechanically-sealing apparatus sets friction structure in friction pair, by friction structure and helicla flute, friction structure and
Phase mutual friction between friction structure produces acoustic emission signal, and acoustic emission signal is monitored by monitoring device.Pass through the monitoring
Device can effectively monitor contact situation of the rotating ring with stationary ring, improve the accuracy of monitoring.
Brief description of the drawings
Fig. 1 is that monitoring device is arranged at stationary ring in a kind of mechanically-sealing apparatus that the utility model one embodiment provides
Structural representation；
Fig. 2 is a kind of external diameter of the first end face of the stationary ring for mechanically-sealing apparatus that the utility model one embodiment provides
The uniform arrangement schematic diagram of friction structure；
Fig. 3 is a kind of second end face helicla flute of the rotating ring for mechanically-sealing apparatus that the utility model one embodiment provides
Arrangement schematic diagram；
Fig. 4 is a kind of internal diameter of the first end face of the stationary ring for mechanically-sealing apparatus that the utility model one embodiment provides
With the friction structure arrangement schematic diagram of external diameter；
Fig. 5 is a kind of second end face friction knot of the rotating ring for mechanically-sealing apparatus that the utility model one embodiment provides
Structure arrangement schematic diagram；
Fig. 6 is a kind of first end face friction knot of the stationary ring for mechanically-sealing apparatus that the utility model one embodiment provides
The uneven arrangement schematic diagram of structure；
Fig. 7 is a kind of waviness of the first end face of the stationary ring for mechanically-sealing apparatus that the utility model one embodiment provides
The schematic diagram of structure；
Fig. 8 is a kind of taper of the first end face of the stationary ring for mechanically-sealing apparatus that the utility model one embodiment provides
The schematic diagram of structure；
Fig. 9 is that a kind of second end face of the rotating ring for mechanically-sealing apparatus that the utility model one embodiment provides is provided with
The schematic diagram of bowl configurations；
Figure 10 is that monitoring device is arranged at rotating ring in a kind of mechanically-sealing apparatus that the utility model one embodiment provides
Structural representation；
Figure 11 is that a kind of monitoring device for mechanically-sealing apparatus that the utility model one embodiment provides is arranged at rotating ring
Distributed architecture schematic diagram.
Description of reference numerals
Mechanically-sealing apparatus 10, mechanically-sealing apparatus 20, monitoring device 100, reception device 110, stationary ring 200, first end
Face 210, barrier element 300, rotating ring 400, second end face 410, helicla flute 411, flexible member 500, secondary sealing 600, stationary seat
700th, seal cavity 800, axle sleeve 900, rotating shaft 910, friction structure 920, tapered configuration 930, frustum 931, waviness structure 940,
Bowl configurations 950.
Embodiment
In order that purpose of utility model of the present utility model, technical scheme and technique effect are more clearly understood, tie below
Accompanying drawing is closed specific embodiment of the utility model is described.It should be appreciated that specific embodiment described herein is only used
To explain the utility model, it is not used to limit the utility model.
Refer to Fig. 1-3, a kind of mechanically-sealing apparatus 10 that the utility model embodiment provides.The stationary ring 200 includes
First end face 210, the rotating ring 400 include second end face 410.First end face 210 and the second end face 410 contact is set
Put.The first end face 210 or the second end face 410 are provided with helicla flute 411.The mechanically-sealing apparatus 10 further wraps
Include the monitoring device 100 for sensing caused acoustic emission signal between the first end face 210 and the second end face 410.
The helicla flute 411 for being arranged at the first end face 210 contacts or is arranged at institute with the second end face 410
Acoustic emission signal can be produced by stating when the helicla flute 411 of second end face 410 contacts with the first end face 210.The monitoring device
100 can monitor acoustic emission signal in real time.The rotating ring 400 and described quiet can effectively be monitored by the monitoring device 100
The contact situation of ring 200, improve the accuracy of monitoring.
When material internal produces micro-crack or micro-crack extension, it can be released energy in the form of elastic wave (i.e. stress wave),
Produce acoustic emission signal.Sometimes sound emission is also referred to as " stress wave transmitting ".Sound caused by mechanical seal end surface contact friction
Transmission signal (friction sound emission) not only easily measures, and is easily separated from various ambient noises, thus is adapted to existing in industry
Wait compared with being used under complex environment.Acoustic emission signal can carry frequency distribution information, thus can be excluded by filtering
Noise, so as to improve the accuracy of measurement.The working condition of end face can be analyzed deeper into ground using these information.
The monitoring device 100 friction knot when being used to contact the first end face 210 and the second end face 410
Periodic acoustic emission signal variation characteristic is converted to electric signal caused by structure 920.The monitoring device 100 is relative to described quiet
Ring 200 is static.Change by analyzing the electric signal can obtain the signal amplitude at measuring point, can also obtain sound emission letter
Number frequency, the cycle.The frequency of the frictional vibration of different materials can also be distinguished by the electric signal.The monitoring device
100 can be acoustic emission sensor, acceleration transducer and eddy current displacement sensor etc..
It is appreciated that the monitoring device 100 can be arranged on the inside of the stationary ring 200 or the rotating ring 400, also may be used
To be arranged near stationary ring 200 or the rotating ring 400 working region, as long as the monitoring device 100 can sense when
Caused acoustic emission signal between the stationary ring 200 and the rotating ring 400.The quantity of the monitoring device 100 can also
To be multiple.
In one of the embodiments, multiple uniform intervals of the monitoring device 100 are arranged at the stationary ring 200.It is multiple
The monitoring device 100 can have more signal acquisition points.
Rotating machinery would generally outwardly transmit power by rotating shaft 910.One end of the rotating shaft 910 is positioned at described
Inside rotating machinery, the other end stretches out the rotating machinery.The rotating machinery is stretched out in the rotating shaft 910
Port usually there will be the gap of circumference.Medium (such as lubricating oil) in rotating machinery can be from the gap to outside
Leakage.The mechanically-sealing apparatus 10 is for preventing the medium in rotating machinery to external leakage.
Sealing medium is needed in rotating machinery work, process is rotated against in the stationary ring 200 and the rotating ring 400
In, it can form fluid film between the stationary ring 200 and the stationary ring 400.The fluid film can produce hydrostatic pressure effect and
Hydrodynamic effect.Hydrostatic pressure effect and hydrodynamic effect can bring stability to fluid film.When thickness reduces,
Hydrostatic pressure effect and hydrodynamic effect, which all have, to be pushed the stationary ring 200 and the rotating ring 400 to both sides open to strengthen stream
The function of body film thickness.
Fig. 1 is referred to, the mechanically-sealing apparatus 10 can also include stationary seat 700, axle sleeve 900, the and of flexible member 500
Secondary sealing 600.The stationary ring 200 can be arranged at one end of the stationary seat 700.The flexible member 500 is arranged at described
Between stationary seat 700 and the stationary ring 200.One end of the flexible member 500 can be fixed on the stationary seat 700.It is described
The other end of flexible member 500 can be connected to the stationary ring 200.The flexible member 500 can make the stationary ring 200 close
The rotating ring 400.The axle sleeve 900 can be arranged at the rotating shaft 910 close to one end of the rotating ring 400.The rotating ring 400
The axle sleeve 900 can be fixedly installed on.The secondary sealing 600 can be used for sealing the stationary seat 700 and the stationary ring 200
Between space.The secondary sealing 600 can be sealing ring.The rotating ring 400 and the stationary ring 200 are sheathed on described turn successively
Axle 910, and it is located at the port position that the rotating machinery is stretched out in the rotating shaft 910.
Here the working condition of the mechanically-sealing apparatus 10 of rotating machinery is illustrated：The rotating shaft 910 is static
When, the flexible member 500 promotes the stationary ring 200 close to the rotating ring 400.The first end face 210 and second end
Face 410 contacts with each other.When the rotating shaft 910 starts, the rotating shaft 910 can drive the axle sleeve 900 and the rotating ring 400 to revolve
Turn.The relatively described rotating shaft 910 of the stationary ring 200 is static.After the rotating ring 400, which rotates, reaches given pace, in the spiral
In the presence of groove 411, the first end face 210 and the second end face 410 are gradually disengaged and form one layer of stable fluid film.
Medium in the rotating machinery can not flow out from the fluid film.The fluid film enhances the first end face
210 and the sealing effectiveness of the second end face 410.The first end face 210 and the second end face 410 are annular, are had
Internal diameter and external diameter., can be in the first end face 210 and described when the friction structure 920 is arranged at the edge of the external diameter
Periodic acoustic emission signal variation characteristic is produced during the outer diameter contact of second end face 410.By becoming to the acoustic emission signal
Changing the analysis of feature can determine that frictional position occurs in the external diameter.
Fig. 2-6 are referred to, in one of the embodiments, are entered between the first end face 210 and the second end face 410
One step is provided with multiple friction structures 920.The multiple friction structure 920 is arranged at the first end face 210 and/or described
Biend 410.
In one of the embodiments, it is multiple described to rub when the helicla flute 411 is arranged at the second end face 410
Wiping the set location of structure 920 includes：Set at the edge of the first end face 210, in the internal diameter of the second end face 410
The circumferentially spaced setting in edge is arranged on above-mentioned position simultaneously.
In one of the embodiments, the helicla flute 411 is arranged at the first end face 210.Multiple friction knots
The set location of structure 920 includes：Set at the edge of the second end face 410, at the edge of the internal diameter of the second end face 410
Circumferentially spaced setting is arranged on above-mentioned position simultaneously.
The friction structure 920 can have more in the set-up mode of the first end face 210 and the second end face 410
Kind：1st, the first end face 210 only has external diameter to be provided with the friction structure 920, and the second end face 410 is only provided with described
Helicla flute 411；2nd, the first end face 210 only has external diameter to be provided with the friction structure 920, the second end face 410 it is interior
Footpath is provided with the friction structure 920；3rd, the internal diameter of the first end face 210 and external diameter all set the friction structure 920, institute
State second end face 410 and there was only helicla flute 411；4th, the external diameter of the first end face and internal diameter are both provided with the friction structure 920,
The internal diameter of the second end face is provided with the friction structure 920.5th, the first end face 210 only has internal diameter to be provided with described rub
Structure 920 is wiped, the second end face 410 is only provided with the helicla flute 411；6th, the first end face 210 only has internal diameter to set
There is the friction structure 920, the internal diameter of the second end face 410 is provided with the friction structure 920.
In one of the embodiments, the helicla flute 411 is arranged at the first end face 210.Multiple friction knots
Structure 920 is in the external diameter of the second end face 410 or in the first end face 210 and the edge of the internal diameter of the second end face 410
Circumferentially spaced setting.The first end face 210 of the present embodiment and the set-up mode of the second end face 410 and above-mentioned implementation
Example is similar, there is a variety of corresponding arrangements.
The friction structure 920 can be multiple.The friction structure 920 can be to be arranged on the first end face 210
And/or the projection or pit of the second end face 410.The friction structure 920 can also be the different shapes such as strip, bulk
Shape.The friction structure 920 can be distributed in the diverse location of the first end face 210 or the second end face 410.Institute
State rotating machinery work during, the first end face 210 and the second end face 410 contact with each other friction when, can
To think the mechanically-sealing apparatus 10, there occurs failure.The friction structure 920 can participate in the first end face 210 and institute
In the friction for stating second end face 410, and contacted with the rotating ring 400 or the stationary ring 200.In the rotating ring 400, the stationary ring
During 200 rotate against contact, the friction structure 920 can produce periodic acoustic emission signal variation characteristic (such as
Vibration Condition, stress intensity change etc.).Pass through the analysis to the periodically acoustic emission signal variation characteristic, it may be determined that
The position that the stationary ring 200 and the rotating ring 400 rub.
When the mechanically-sealing apparatus 10 operates, it can revolved by the signal amplitude that the monitoring device 100 collects
Variation tendency in turn-week phase time scale carrys out the type of failure judgement.In one embodiment, the monitoring device 100 can be with
A signal amplitude is gathered within the certain intervals time.Multiple signal width can be gathered by being rotated in the rotating shaft 910 in a cycle
Value point.By the analysis to signal amplitude collection point it is recognized that in each cycle with signal amplitude during each week intuitively
Variation tendency.
Starting shooting with stopping process, when rotating speed is less than certain value, solid contact friction can produced, so that signal
Amplitude significantly rises.If it is excessive to open rotating speed, or there is very signal amplitude variation tendency with normal variation tendency in opening process
Big difference, then it is considered that there occurs failure.
During 10 steady running of mechanically-sealing apparatus, between the stationary ring 200 and the rotating ring 400 by air film every
Open, therefore solid contact friction will not occur, signal amplitude very little.Signal amplitude answers very little during steady running.If during steady running
Signal amplitude is larger then it is considered that there occurs failure.
Preferably, electric signal can be converted to power spectrum by Fourier transformation.The power spectrum can include described
The frequency of rotating shaft 910 and each multiplied frequency harmonic.Integrated signal form and the power spectrum can distinguish different failure modes.Example
Such as, when the stationary ring 200 is acted on by large axial force, signal amplitude increases, and is mainly DC quantity in power spectrum.Flat
Weighing apparatus than it is excessive, there may be such failure when dynamic pressure effect is insufficient, supporting spring is really up to the mark, supporting spring is all stuck
Pattern.
In one of the embodiments, the quantity of the friction structure 920 of the first end face 210 can be that (N is N
Positive integer) it is individual.The number of the helicla flute 411 of the second end face 410 is that M (M is positive integer) is individual.During normal work, institute
State first end face 210 and the second end face 410 is parallel to each other.During failure, following judgment mode may be referred to：
1st, signal amplitude feature：From form, signal is persistently present, and has largely with the cycle of rotating shaft 910
1/M or so when a length of cycle oscillating curves.The multiplied frequency harmonic near a large amount of M multiplied frequency harmonics and M times is had in power spectrum.
Failure possible cause：The first end face 210 tilts towards the second end face 410.
Accident analysis：The first end face 210 towards the second end face 410 tilt when, the rotating ring 400 and described quiet
The part of the contact of the external diameter of ring 200 can produce friction.The position that the stationary ring 200 participates in friction is basically unchanged.With described
Rotating ring 400 is rotated, and the weir area between the M helicla flute 411 of the rotating ring 400 is alternately participated in friction.
2nd, signal amplitude feature：From form, signal is persistently present, and has largely in the 1/N in the cycle of rotating shaft 910 or so
When a length of cycle oscillating curves.The multiplied frequency harmonic near a large amount of N multiplied frequency harmonics and N times is had in power spectrum.
Failure possible cause：The second end face 410 tilts towards the first end face 210.
Accident analysis：When the second end face 410 tilts towards the first end face 210, the rotating ring 400 and described
The part that stationary ring 200 contacts can produce friction.The position that the rotating ring 400 participates in friction is basically unchanged.And with the rotating ring
400 rotation, N number of friction structure 920 of the stationary ring 200 are alternately participated in friction.
It is appreciated that being arranged at the first end face 210 here with the friction structure 920, the helicla flute 411 is set
Exemplified by the second end face 410.It is appreciated that the friction structure 920 is arranged at the second end face 210, the spiral
Analysis method when groove 411 is arranged at the first end face 410 is identical with above-mentioned analysis method.
In the presence of both the above failure is equal, the two failure factors can be included each simultaneously in signal amplitude and power spectrum
The feature brought when individually occurring.
The edge of the internal diameter of the first end face 210 can be provided with the individual friction structures 920 of E (E is positive integer).Institute
The individual friction structures 920 of F (F is positive integer) can be provided with by stating the edge of the internal diameter of second end face 410.Due to described first
The outer radius and inner radius of end face 210 and the second end face 410 have a friction structure 920 of entirely different quantity, thus can be with
Friction is distinguished to occur in inner radius or outer radius.General cone angle very little or during into negative taper, friction should occur in outer radius, and
Fault mode can be distinguished in the way of being carried in above-described embodiment.But when there is larger positive cone angle, friction occurs in internal diameter
Place, and the harmonic wave of E times, F times etc. frequency multiplication may be brought.It can judge accordingly at least one in the rotating ring 400 and the stationary ring 200
Generate larger positive cone angle.It is appreciated that the internal diameter of the first end face 210 or the second end face 410 and described
External diameter can be provided with the friction structure 920 simultaneously.
In one of the embodiments, multiple uniform intervals of the friction structure 920 are set.Or along the first end face
The circumferential non-uniform spacing of 210 or described second end faces 410 is set.The mode that the friction structure 920 is uniformly arranged being capable of root
According to the caused regular feature of tool in power spectrum.It is easy to Judging fault to occur in external diameter or internal diameter.The friction structure
The feature of power spectrum, can be produced in the friction structure 920 being uniformly arranged caused by the mode that 920 non-uniform spacings are set
Power spectrum on the basis of further determine that region caused by failure.
In one of the embodiments, the friction structure 920 is raised, groove or coating.It is described raised and described recessed
Groove can produce the change of acoustic emission signal in friction process.In one embodiment, the projection can be 2 μm of high tables
Face percent ripple.When solid friction occurs for the coating, the acoustic emission signal frequency of generation is produced with the matrix material of stationary ring 200
Raw acoustic emission signal frequency is on different frequency bands.Matrix can be respectively obtained by being filtered processing to acoustic emission signal
The signal amplitude of material friction and the signal amplitude of coating material friction.According to signal amplitude change can failure judgement position
Put.
In one embodiment, the monitoring device 100 is acoustic emission sensor.The acoustic emission sensor 100 can be with
To be multiple, and it is distributed in the stationary ring 200.The acoustic emission sensor can be converted to acoustic emission signal electric signal and outside
Boundary exports.In engineering field, the generation of equipment crackle and extension, friction, shock, abrasion, plastic deformation, corrosion, fluid are contacted
Leakage, phase transformation etc..It can be detected by the acoustic emission sensor.
Refer to Fig. 1, in one of the embodiments, the monitoring device 100 be arranged at the stationary ring 200 inside or
The one end of the stationary ring 200 away from the rotating ring 400.The inside that the monitoring device 100 is arranged at the stationary ring 200 can subtract
Few influence to the global shape of stationary ring 200.The monitoring device 100 is arranged at the stationary ring 200 away from the rotating ring 400
One end the monitoring device 100 is caused to damage when can prevent the stationary ring 200 close to the rotating ring 400.Using described
The sealing position of the plant equipment of mechanically-sealing apparatus 10 and non-tight position generally have certain pressure differential.When the monitoring
When device 100 is outwardly transmitted electric signal by signal wire, the signal wire is drawn to prevent from the low-pressure side of plant equipment
The normal work of affected by high signal wire.
Fig. 1 is referred to, in one of the embodiments, the one end of the monitoring device 100 away from the rotating ring 400 is set
Have for reducing barrier element 300 of the periphery vibration to the monitoring device 100 interference.Most of parts of plant equipment are set
It is placed in the one end of the monitoring device 100 away from the rotating ring 400.The barrier element 300 is used for reducing from plant equipment
Interference of the collision of other parts to signal, so as to obtain the end contact signal of higher quality.
Fig. 7-9 are referred to, in one embodiment, the first end face 210 and/or second end face 410 are provided with micron
The sealing enhancing structure of level.The sealing enhancing structure is included in waviness structure 940, tapered configuration 930 and bowl configurations 950
It is one or more of.
The tapered configuration 930 can cause hydrostatic pressure effect.The waviness structure 940 can bring hydrodynamic to imitate
Should.The pit 950 can also bring Fluid pressure effect to strengthen sealing property.
The waviness structure 940 and the tapered configuration 930 can be formed by individually processing the first end face 210,
Can also be that the first end face 210 is not as caused by during the monitoring device 100 and the assembled formation of stationary ring 200
Uniformity is formed.The waviness structure 940 can have the end face of heaving of the sea form.The waviness structure 940 can be
It is about 0.02 μm -0.2 μm of waviness with wave height.The height of the frustum 931 of the micron-sized tapered configuration 930 can be
0.1μm-1μm。
The bowl configurations 950 can be used for strengthening hydrodynamic effect, so as to strengthen the rotating ring 400 and the stationary ring
200 stability in the course of the work.The bowl configurations 950 can also accommodate the stationary ring 200 and the rotating ring 400 in work
During work because of friction and caused by abrasive dust, so as to improve the reliability of the rotating ring 400 and the stationary ring 200 at work.
The bowl configurations 950 can be evenly arranged in the second end face 410 and/or the first end face 210.The bowl configurations
950 size can be micron order.Fig. 9 is referred to, the surface of helicla flute 411 can also set the bowl configurations 950.
Figure 10 is referred to, provides a kind of mechanically-sealing apparatus 20 in one embodiment.The mechanically-sealing apparatus 20
Structure and technical characteristic and above-mentioned mechanically-sealing apparatus 10 it is essentially identical.Difference is：
The set-up mode of monitoring device 100 is different.In the present embodiment, the monitoring device 100 is arranged at the rotating ring
400.The monitoring device 100 is arranged at the inside of the rotating ring 400 to reduce the influence to the global shape of rotating ring 400.
Figure 11 is referred to, the mechanically-sealing apparatus 20 can also include multiple monitoring devices 100, the monitoring dress
Put 100 inside that the rotating ring 400 is installed in the center of circle such as same circumference angular spacing.The monitoring device 100 is uniformly arranged
Mode can reduce the rotating ring 400 in long-term rotation process due to lay particular stress on cause failure.
Figure 10 is referred to, in one embodiment, the mechanically-sealing apparatus 20 also includes being used to receive the monitoring dress
Put the reception device 110 of 100 wireless signals sent.The reception device 110 is installed in seal cavity 800.The annular seal space
800 be the object that the mechanically-sealing apparatus 20 seals.Can be gas or liquid in the annular seal space 800.
In the running of mechanically-sealing apparatus 20, the monitoring device 100 can rotate with rotating ring 400.It is described
Monitoring device 100 transmits radio signal to the reception device 110.It can avoid using signal wire using wireless transmission function
Because the problem of winding, causes failure.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (11)
1. a kind of mechanically-sealing apparatus, including it is sheathed on the rotating ring (400) and stationary ring (200) of rotating shaft (910), the stationary ring
(200) first end face (210) is included, the rotating ring (400) includes second end face (410), the first end face (210) and described
Second end face (410) contact is set, and the first end face (210) or the second end face (410) are provided with helicla flute (411),
Characterized in that, the mechanically-sealing apparatus (10) further comprises being used to sense the first end face (210) and described second
The monitoring device (100) of caused acoustic emission signal between end face (410).
2. mechanically-sealing apparatus as claimed in claim 1, it is characterised in that the first end face (210) and second end
Multiple friction structures (920) are further provided between face (410), the multiple friction structure (920) is arranged at described first
End face (210) and/or the second end face (410).
3. mechanically-sealing apparatus as claimed in claim 2, it is characterised in that when the helicla flute (411) is arranged at described
During biend (410), the set location of multiple friction structures (920) includes：Set at the edge of the first end face (210)
Put, circumferentially spaced setting or above-mentioned position is arranged on simultaneously at the edge of the internal diameter of the second end face (410).
4. mechanically-sealing apparatus as claimed in claim 2, it is characterised in that the helicla flute (411) is arranged at described first
End face (210), the set location of multiple friction structures (920) include：Set at the edge of the second end face (410),
Circumferentially spaced setting or above-mentioned position is arranged on simultaneously at the edge of the internal diameter of the second end face (410).
5. the mechanically-sealing apparatus as described in claim 3 or 4, it is characterised in that multiple friction structures (920) are along described
The circumferential uniform intervals of first end face (210) or the second end face (410) are set, or along the first end face (210) or institute
The circumferential non-uniform spacing for stating second end face (410) is set.
6. mechanically-sealing apparatus as claimed in claim 5, it is characterised in that the friction structure (920) is bulge-structure, recessed
Slot structure or coating structure.
7. mechanically-sealing apparatus as claimed in claim 1, it is characterised in that the monitoring device (100) is voice sending sensor
Device.
8. mechanically-sealing apparatus as claimed in claim 1, it is characterised in that the monitoring device (100) is arranged at described dynamic
In ring (400).
9. mechanically-sealing apparatus as claimed in claim 8, it is characterised in that the mechanically-sealing apparatus (10) includes multiple institutes
State monitoring device (100), same circle of multiple monitoring devices (100) in the axial same section of the rotating ring (400)
The central angles such as week are arranged at intervals.
10. mechanically-sealing apparatus as claimed in claim 8, it is characterised in that the mechanically-sealing apparatus (10) also includes using
In the reception device (110) for receiving the wireless signal that the monitoring device (100) sends.
11. mechanically-sealing apparatus as claimed in claim 1, it is characterised in that the first end face (210) and/or the second end
Face (410) is further provided with micron-sized sealing enhancing structure, and the sealing enhancing structure includes waviness structure (940), cone
The one or more spent in structure (930) and bowl configurations (950).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720242079.8U CN206845897U (en) | 2017-03-13 | 2017-03-13 | Mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720242079.8U CN206845897U (en) | 2017-03-13 | 2017-03-13 | Mechanically-sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845897U true CN206845897U (en) | 2018-01-05 |
Family
ID=60790934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720242079.8U Active CN206845897U (en) | 2017-03-13 | 2017-03-13 | Mechanically-sealing apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN206845897U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571590A (en) * | 2017-03-13 | 2018-09-25 | 清华大学 | Mechanically-sealing apparatus |
| CN108869750A (en) * | 2018-08-16 | 2018-11-23 | 清华大学 | It can monitor-type mechanically-sealing apparatus |
| CN108956043A (en) * | 2018-07-03 | 2018-12-07 | 清华大学 | A kind of multiple dimensioned Real Time Monitoring method of mechanical seal |
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2017
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571590A (en) * | 2017-03-13 | 2018-09-25 | 清华大学 | Mechanically-sealing apparatus |
| CN108571590B (en) * | 2017-03-13 | 2024-03-26 | 清华大学 | Mechanical sealing device |
| CN108956043A (en) * | 2018-07-03 | 2018-12-07 | 清华大学 | A kind of multiple dimensioned Real Time Monitoring method of mechanical seal |
| WO2020006971A1 (en) * | 2018-07-03 | 2020-01-09 | 清华大学 | Multi-scale real-time monitoring and analysis method for mechanical seal |
| CN108956043B (en) * | 2018-07-03 | 2020-05-22 | 清华大学 | Mechanical seal multi-scale real-time monitoring and analyzing method |
| US11125642B2 (en) | 2018-07-03 | 2021-09-21 | Tsinghua University | Multi-scale real-time acoustic emission monitoring and analysis method for mechanical seal |
| CN108869750A (en) * | 2018-08-16 | 2018-11-23 | 清华大学 | It can monitor-type mechanically-sealing apparatus |
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