CN205896181U - Paillon foil terminal surface air film seal structure of micropore texture is left on paillon foil surface - Google Patents
Paillon foil terminal surface air film seal structure of micropore texture is left on paillon foil surface Download PDFInfo
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- CN205896181U CN205896181U CN201620742955.9U CN201620742955U CN205896181U CN 205896181 U CN205896181 U CN 205896181U CN 201620742955 U CN201620742955 U CN 201620742955U CN 205896181 U CN205896181 U CN 205896181U
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Abstract
Paillon foil terminal surface air film seal structure of micropore texture is left on paillon foil surface is including rotating ring and the quiet ring that the air film is sealed, the seal face of at least one sealing ring is a paillon foil terminal surface of taking surface texture in rotating ring or the quiet ring, the sealing ring of taking the paillon foil terminal surface is including the annular ring body of circle, fan -shaped rubber pad, the annular paillon foil, the ring body outside is the sunken ring shape concave surface that forms a little, ring body inboard is the protruding ring step that forms a little, the upper surface of ring step forms sealing dam, evenly set up the fan -shaped groove of a plurality of according to the rotation center symmetric distribution on the ring shape concave surface, all put into a fan -shaped rubber pad in every fan -shaped groove, fan -shaped rubber pad upper surface and ring shape concave surface parallel and level, the micropore clitellum is opened to annular paillon foil upper surface, and its lower surface is hugged closely with ring shape concave surface, and annular paillon foil upper surface flushes with sealing dam, follow a plurality of micropores of the radial orientation equipartition of annular paillon foil in the micropore clitellum and form the hole row, form sealed weir between the row of kong lieyu hole, the micropore row distribute with the dislocation of fan -shaped groove.
Description
Technical field
This utility model is related to mechanical end face sealing structure design field and in particular to a kind of foil surfaces open micropore
The paillon foil gas film face seal structure of texture, is particularly well-suited to the axle end sealing device of high-voltage high-speed rotating machinery.
Background technology
Mechanical seal with its low leakage, low-power consumption, long-life etc. significantly performance advantage in the shaft end seal of rotating machinery
Upper acquisition is extensively applied, such as the shaft end seal of the rotating machinery such as compressor, pump, reactor and blower fan, with petrochemical industry and boat
The fast development of its aviation is it is desirable to mechanical seal can adapt to high parameter, variable working condition and severe sealed environment.Microporous end surface is close
Feng Yiqi can effectively adapt to the high sealing occasion of solid content, have more preferable abrasive resistance and operational reliability and obtain
Extensively apply, in succession develop the microporous end surface sealing of multiple multi-forms at present both at home and abroad, micro- including circular micropore, directivity
Multiple micropore seal face structures such as hole, biserial incline direction micropore, fringe shape arrangement micropore, but due to pore fluid dynamic pressure effect
Should be poor, the fluid film bearing capacity of formation is poor, and the start and stop stage under high pressure operating mode, and gas is not easily accessible porose area, end face
Easily dry grind, especially at a high speed and under the conditions of variable working condition, external disturbance is larger, common microporous end surface sealing adaptability is relatively
Difference, seal face easily touches mill and eccentric wear, causes the destruction of micropore texture, and the performance of serious reduction microporous end surface sealing is excellent
Gesture.
Content of the invention
This utility model will overcome the disadvantages mentioned above of prior art, provide and open easy, dynamic pressure effect under a kind of high-voltage high-speed
Ying Qiang, gas film stiffness are big, dynamic stability is good, slip is low, are suitable for the foil surfaces containing solid particle operating mode and open micropore knitting
The paillon foil gas film face seal structure of structure.
This utility model is to be achieved through the following technical solutions:
A kind of foil surfaces open the paillon foil gas film face seal structure of micropore texture, the rotating ring including gas film sealing and quiet
Ring；In described rotating ring or stationary ring, the seal face of at least one sealing ring is the paillon foil end face of belt surface texture, described band paillon foil
The sealing ring of end face includes circular ring body, fan-shaped rubber blanket, annular paillon foil, and outside ring body, depression forms annulus a little
Shape concave surface, convexes to form annular steps a little inside ring body, the upper surface of described annular steps forms seals dam, described annulus
Uniformly open up several on shape concave surface according to the symmetrical fan groove of center of rotation, in each fan groove, put into one piece of sector
Rubber blanket, described sector rubber blanket upper surface is concordant with annular concave surface；Described annular paillon foil upper surface opens micropore annulus, under it
Surface is close to annular concave surface, and is connected by screw and fixes with ring body, and annular paillon foil upper surface is flushed with seals dam；Institute
State in micropore annulus along annular paillon foil radial direction uniformly multiple micropores formation micropore row, between micropore row and micropore row, have sealing
Weir, described micropore row are dislocatedly distributed with fan groove.Described block rubber can also be made of aluminum, the relatively low material of copper equal strength.
This utility model has the advantages that
The foil surfaces that this utility model provides open the paillon foil gas film face seal structure of micropore texture, in ring body annulus
Shape concave surface uniformly has several and puts into fan-shaped block rubber according to the symmetrical fan groove of center of rotation and wherein, so that
Being dislocatedly distributed on ring body annular concave surface has the material of two kinds of dual extension-compression modulus, and in fan groove region, elastic modelling quantity is less,
In non-fan groove area, elastic modelling quantity is larger；When micron meter after screw with ring body assembling, on paillon foil for the paillon foil with micropore
The fan groove area of degree Kong Lieyu ring body is dislocatedly distributed, and the foil area that micropore row are located is supported by ring body own material, close
The foil area part that envelope weir is located is directly supported by rubber blanket.Under high pressure operating mode, foil seal can be made by hydrostatic pressure
The region that weir is directly supported by rubber blanket occurs larger elastic deformation thus introducing gases at high pressure, increases the static pressure of seal face
Opening force, thus improve the unlatching performance of sealing.When the normal operation of sealing, on the one hand, sealing weir is directly propped up by rubber blanket
Deformation is passed through in the region of support makes sealing gas be easier to enter the micropore area of closing, and to the enough gas of the leeward side supplement of micropore
Body, it is to avoid also enhance the dynamic pressure effect of micropore while producing underbalance effect；On the other hand, because the convergence extruding of gas is made
Compare with the windward side of, micropore that leeward lateral pressure is high, hence in so that windward side in the region that directly supported by rubber blanket of sealing weir
Deformation will be greater than the deformation of leeward side, thus forming power wedge, effectively increasing the mould of micropore leeward side, increasing air film
Rigidity, improves operation stability.Additionally, under the conditions of variable working condition, on paillon foil, the sealing weir between micropore row is straight by rubber blanket
The change perceiving mould is made adaptable compatibility of deformation by the region connecing support, and deformation can affect mould, finally again further
So that sealing is run and reach a most stable of dynamic equilibrium state.Compared with sealing with traditional microporous end surface, with the paper tinsel of micropore texture
Piece end face seal has high pressure operating mode end face and easily opens, and at a high speed and runs more stable feature under variable working condition.
The utility model has the advantages that: under high-voltage high-speed, unlatching is easily, dynamic pressure effect is strong, gas film stiffness is big, dynamically steady
Qualitative good, slip is low, is suitable for operating mode containing solid particle.
Brief description
Fig. 1 is structural blast schematic diagram of the present utility model.
Fig. 2 is the structural representation of assembly of the present utility model.
Fig. 3 is the structural representation of middle ring body of the present utility model.
Fig. 4 is paillon foil surface micro-pores texture arrangement mode schematic diagram in this utility model.
Fig. 5 is the structural representation of block rubber of the present utility model.
Wherein: 1- ring body；2- fan groove；3- seals dam；4- sector rubber blanket；5- annular paillon foil；6- micropore arranges；7- is close
Envelope weir；8- screw；61- micropore is single-row；62- micropore multiple row.
Specific embodiment
Below in conjunction with the accompanying drawings the technical solution of the utility model is described in detail.
Referring to figs. 1 to shown in Fig. 5, this utility model foil surfaces open the paillon foil gas film face seal structure of micropore texture,
Rotating ring including gas film sealing and stationary ring；In described rotating ring or stationary ring, the seal face of at least one sealing ring is belt surface texture
Paillon foil end face, the described sealing ring with paillon foil end face includes circular ring body 1, fan-shaped rubber blanket 4, annular paillon foil 5, ring
Outside body 1, depression forms annular concave surface a little, convexes to form annular steps inside ring body a little, described annular steps
Upper surface forms seals dam 3, described annular concave surface uniformly has several according to the symmetrical fan groove of center of rotation
2, put into one piece of fan-shaped rubber blanket 4 in each fan groove 2, described sector rubber blanket 4 upper surface is concordant with annular concave surface.By
Adopt high-strength rigid material in ring body 1, elastic modelling quantity is larger, and rubber blanket 4 is soft material, elastic modelling quantity is less, because
Elastic modelling quantity size on this whole annular concave surface assumes periodically change distribution, and the described sealing ring with paillon foil end face is in high pressure
Effect its sealing foil end face circumferencial direction of lower edge is also easy to produce periodically deforming, and then obtains high hydrodynamic effect.
Described annular paillon foil 5 upper surface opens micropore annulus, and described annular paillon foil 5 lower surface is close to annular concave surface, institute
State annular paillon foil fixing by screw 8 connection and ring body 1, described annular paillon foil 5 upper surface is flushed with seals dam 7.
Micropore in described micropore annulus radially becomes rods arranged in horizontal line along annular paillon foil, forms micropore row 6, micropore row with micro-
It is sealing weir 7 between the row of hole, described micropore row 6 and fan groove 2 are dislocatedly distributed, and so can ensure the paillon foil area that micropore row 6 are located
Domain is supported by ring body 1 own material, it is possible to provide enough support stiffness, thus micropore area produces dynamic pressure after ensureing sealing operating
Effect is not impaired；The foil area part that sealing weir 7 is located is directly supported by rubber blanket, the region being directly supported by rubber blanket
Easily be stressed change and be deformed, this deformation not only facilitate improve microporous end surface sealing opening feature and dynamic pressure effect,
Also contribute to gas film stiffness simultaneously and stablize mould change.
In described micropore annulus, micropore can be single-row symmetrical according to center of rotation, the micropore single-row 61 in such as Fig. 4, also may be used
Multiple row is symmetrical according to center of rotation side by side, the micropore multiple row 62 in such as Fig. 4.
Content described in this specification embodiment is only enumerating of the way of realization to utility model design, this utility model
Protection domain be not construed as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model also includes
Those skilled in the art according to this utility model design it is conceivable that equivalent technologies mean.
Claims (1)
1. a kind of foil surfaces open paillon foil gas film face seal structure, the rotating ring including gas film sealing and the stationary ring of micropore texture；
It is characterized in that: in described rotating ring or stationary ring, the seal face of at least one sealing ring is the paillon foil end face of belt surface texture, institute
State the sealing ring with paillon foil end face and include circular ring body, fan-shaped rubber blanket, annular paillon foil, be recessed a little outside ring body
Form annular concave surface, inside ring body, convex to form annular steps a little, the upper surface of described annular steps forms seals dam,
Uniformly open up several on described annular concave surface according to the symmetrical fan groove of center of rotation, put in each fan groove
One piece of fan-shaped rubber blanket, described sector rubber blanket upper surface is concordant with annular concave surface；Described annular paillon foil upper surface opens micropore
Annulus, its lower surface is close to annular concave surface, and is connected by screw and fixes with ring body, annular paillon foil upper surface and sealing
Dam flushes；In described micropore annulus, along annular paillon foil radial direction, uniformly multiple micropores form micropore row, have close between micropore row
Envelope weir, described micropore row are dislocatedly distributed with fan groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620742955.9U CN205896181U (en) | 2016-07-13 | 2016-07-13 | Paillon foil terminal surface air film seal structure of micropore texture is left on paillon foil surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620742955.9U CN205896181U (en) | 2016-07-13 | 2016-07-13 | Paillon foil terminal surface air film seal structure of micropore texture is left on paillon foil surface |
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| Publication Number | Publication Date |
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| CN205896181U true CN205896181U (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620742955.9U Active CN205896181U (en) | 2016-07-13 | 2016-07-13 | Paillon foil terminal surface air film seal structure of micropore texture is left on paillon foil surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015578A (en) * | 2016-07-13 | 2016-10-12 | 浙江工业大学 | Foil piece end face gas film sealed structure with foil piece surface provided with micropore texture |
-
2016
- 2016-07-13 CN CN201620742955.9U patent/CN205896181U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015578A (en) * | 2016-07-13 | 2016-10-12 | 浙江工业大学 | Foil piece end face gas film sealed structure with foil piece surface provided with micropore texture |
| CN106015578B (en) * | 2016-07-13 | 2017-11-07 | 浙江工业大学 | Foil surfaces open the paillon foil gas film face seal structure of micropore texture |
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