CN110454576A - Seal assembly for rotary machine - Google Patents
Seal assembly for rotary machine Download PDFInfo
- Publication number
- CN110454576A CN110454576A CN201810425232.XA CN201810425232A CN110454576A CN 110454576 A CN110454576 A CN 110454576A CN 201810425232 A CN201810425232 A CN 201810425232A CN 110454576 A CN110454576 A CN 110454576A
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- Prior art keywords
- seal component
- seal
- component
- honeycomb
- finger
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 230000006837 decompression Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
-
- 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
- F16J15/44—Free-space packings
- F16J15/444—Free-space packings with facing materials having honeycomb-like structure
-
- 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
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
- F16J15/4476—Labyrinth packings with radial path
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a kind of seal assemblies for rotary machine, the rotary machine includes quiet body and rotor, the seal assembly includes brush seal component, honeycomb seal component and Finger seal component, the brush seal component, the honeycomb seal component and the Finger seal component are suitable for being located on the quiet body, the brush seal component and the Finger seal component are alternately arranged along the axial direction of the rotor, the honeycomb seal component is located between the brush seal component and the Finger seal component and opposite with the sealing tooth on the surface for being located at the rotor, the honeycomb seal component and the sealing tooth constitute labyrinth seal.The present invention is used for the seal assembly of rotary machine, has good sealing effect, and long service life, required sealing space is small, improves applicability.
Description
Technical field
The present invention relates to technical field of sealing technology, more particularly to a kind of seal assembly for rotary machine.
Background technique
It usually requires to be sealed fluid in the rotary machine of the compressor or turbine of gas turbine etc., be let out with reducing
Leakage, guarantees the normal work of rotary machine.In the related technology, between the compressor of gas turbine or the grade of the component in turbine and
Shaft end usually require to be arranged it is multi-stage sealed, with by expansion, throttling and decompression process reach sealing effect.
However, the series that existing sealing needs is more, required sealing space is big, and applicability is low, and due between sealing
Gap is small, is easy to produce fretting wear, influences the service life of sealing element, reduces sealing effect.
Summary of the invention
For this purpose, the present invention proposes that a kind of seal assembly for rotary machine, the seal assembly are imitated with good sealing
Fruit, long service life, required sealing space is small, improves applicability.
Seal assembly according to an embodiment of the present invention for rotary machine, the rotary machine include quiet body and rotation
Body, the seal assembly include brush seal component, honeycomb seal component and Finger seal component, the brush seal component,
The honeycomb seal component and the Finger seal component are suitable for being located on the quiet body, the brush seal component and described
Finger seal component is alternately arranged along the axial direction of the rotor, and the honeycomb seal component is located at the brush seal component
It is between the Finger seal component and opposite with the sealing tooth on the surface for being located at the rotor, the honeycomb seal portion
Part and the sealing tooth constitute labyrinth seal.
Seal assembly according to an embodiment of the present invention for rotary machine passes through brush seal component, Finger seal portion
Effective arrangement of part and Finger seal component can fast implement throttling, decompression, have good sealing effect, and use
Service life is long, and required sealing space is small, can be suitable for sealing space constrained environment, improve applicability.
In some embodiments, the brush seal component radially has the first gap described with the rotor,
The Finger seal component and the rotor radially have the second gap described, the honeycomb seal component with it is described
Rotor radially has third space described, and the third space is greater than first gap and second gap.
In some embodiments, first gap is 0.1mm~0.5mm；Second gap be 0.05mm~
0.3mm。
In some embodiments, the honeycomb seal component is in the gap radially of the quiet body with the sealing tooth
0.5mm~1mm.
In some embodiments, thickness of the seal assembly in the axial direction of the quiet body is no more than 50mm.
In some embodiments, thickness of the brush seal component in the axial direction is no more than 2mm, and the honeycomb is close
It seals thickness of the component in the axial direction and is no more than 20mm.
In some embodiments, the sealing tooth longitudinal section is in rectangle or triangle.
In some embodiments, the brush seal component includes the first brush seal component and the second brush seal portion
Part, the honeycomb seal component include the first honeycomb seal component and the second honeycomb seal component, and the Finger seal component is set
Between the first brush seal component and the second brush seal component, the first honeycomb seal component is set to institute
It states between the first brush seal component and the Finger seal component, it is close that the second honeycomb seal component is set to the finger tip
It seals between component and the second brush seal component.
In some embodiments, the Finger seal component is located at the first brush seal component and described second brush
The middle position of seal member.
In some embodiments, the Finger seal component includes the first Finger seal component and the second Finger seal portion
Part, the honeycomb seal component include the first honeycomb seal component and the second honeycomb seal component, and the brush seal component is set
Between the first Finger seal component and the second Finger seal component, the first honeycomb seal component is set to institute
It states between the first Finger seal component and the brush seal component, the second honeycomb seal component is set to described brush close
It seals between component and the second Finger seal component.
In some embodiments, the brush seal component is located at the first Finger seal component and second finger tip
The middle position of seal member.
In some embodiments, a honeycomb seal component corresponds to multiple sealing teeth.
Detailed description of the invention
Fig. 1 is the seal assembly according to an embodiment of the invention for rotary machine.
Fig. 2 is the seal assembly for rotary machine of another embodiment according to the present invention.
Appended drawing reference:
Seal assembly 100, brush seal component 1, the first brush seal component 11, the second brush seal component 12, honeycomb
Seal member 2, the first honeycomb seal component 21, the second honeycomb seal component 22, Finger seal component 3, the first Finger seal portion
Part 31, the second Finger seal component 32 seal tooth 4, quiet body 200, rotor 300.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.In
In description of the invention, it is to be understood that term " center ", " length ", " width ", " thickness ", "inner", "outside", " axis
To ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
As shown in Figs. 1-2, the seal assembly according to an embodiment of the present invention for rotary machine, wherein rotary machine packet
Quiet body 200 and rotor 300 are included, specifically, quiet body 200 is arranged around the periphery of rotor 300, and rotor 300 is quiet
It can be rotated around the axis of rotor 300 in body 200, seal assembly 100 is for sealing quiet body 200 and rotor 300.Wherein,
Rotary machine such as gas turbine, gas turbine include casing and shaft, shaft be located in casing and in casing around the shaft
Axis can be rotated, which is rotor 300, and the casing can be quiet body 200, be also possible to the sealing of casing innate need of the economy
Position setting sealing matrix, which is connected with the inner wall of casing and is looped around the periphery of shaft, then the sealing matrix
For quiet body 200.
Seal assembly 100 includes brush seal component 1, honeycomb seal component 2 and Finger seal component 3, brush seal portion
Part 1, honeycomb seal component 2 and Finger seal component 3 are suitable for being located on quiet body 200.Here, " it is suitable for " being seal assembly 100
When being specifically located on rotary machine, brush seal component 1, honeycomb seal component 2 and Finger seal component 3 are located at quiet body 200
On, that is, indicate under specific application environment can the meaning, for example, brush seal component 1, the honeycomb of seal assembly 100 are close
Envelope component 2 and Finger seal component 3 are located on the sealing matrix on casing or in casing.Specifically, brush seal component 1,
Honeycomb seal component 2 and Finger seal component 3 are located at the inner peripheral surface of quiet body 200.
Brush seal component 1 and Finger seal component 3 are alternately arranged along the axial direction of rotor 300, and honeycomb seal component 2 is set
Between brush seal component 1 and Finger seal component 3 and be located at rotor 300 surface on sealing tooth 4 it is opposite, bee
Nest seal member 2 and sealing tooth 4 constitute labyrinth seal.
In other words, in the axial direction of rotor 300, brush seal component 1 and Finger seal component 3 replace and are spaced cloth
It sets, honeycomb seal component 2 is located at the interval location between brush seal component 1 and Finger seal component 3, rotor 300
The outer peripheral surface opposite with quiet body 200 be equipped with sealing tooth 4, sealing tooth 4 and honeycomb seal component 2 rotor 300 radially
It is oppositely arranged and constitutes labyrinth seal.Further, the both ends of honeycomb seal component 2 respectively with brush seal component 1 and refer to
A connection in sharp seal member 3.
It is understood that forming gap and consumption between sealing tooth 4 and quiet body 200 in labyrinth seal on rotor 300
Space is dissipated, when fluid is by gap, the partial pressure of the segment fluid flow can be converted into speed energy, and speed can dissipate immediately
It is thermal energy that effect in cavity due to turbulent eddy and skin friction drag, which dissipates, since the fluid of process generates throttling and heat
The pressure of mechanics effect, the segment fluid flow gradually decreases, to achieve the effect that sealing.
More specifically, seal assembly 100 in the casing of gas turbine for having and being used as rotor 300 in gas turbine
Shaft, shaft in casing can axis rotation around the shaft, be additionally provided with the sealing base for being looped around shaft periphery in casing
Body, the outer peripheral surface for sealing matrix are connected with casing inner surface, and sealing matrix is equipped with brush seal component 1, honeycomb seal component
2 and Finger seal component 3, shaft is equipped with the sealing tooth 4 opposite with honeycomb seal component 2, to realize between casing and shaft
Sealing.It is understood that the present invention is not limited thereto, for example, without sealing matrix between casing and shaft, it is brush close
Envelope component 1, honeycomb seal component 2 and Finger seal component 3 are directly arranged on casing inner surface, and shaft is equipped with close with honeycomb
The opposite sealing tooth of component 2 is sealed, to realize the sealing between casing and shaft.It is understood that by the gas turbine
The seal assembly of above structure is set, can be improved the reliability of gas turbine.
Seal assembly according to an embodiment of the present invention for rotary machine passes through brush seal component, Finger seal portion
Effective arrangement of part and Finger seal component can fast implement throttling, decompression, have good sealing effect, and use
Service life is long, and required sealing space is small, easy for installation, can be suitable for sealing space constrained environment, improve applicability.
In some embodiments, brush seal component 1 radially has the first gap in quiet body 200 with rotor 300,
Finger seal component 3 and rotor 300 have the second gap radially, and honeycomb seal component 2 and rotor 300 are in radial direction
Upper to have third space, third space is greater than the first gap and the second gap.In other words, brush seal component 1, honeycomb seal
Component 2 and Finger seal component 3 have between rotor 300 in the radial direction of quiet body 200 (i.e. the radial direction of rotor 300)
There is gap, and gap in the radial direction is greater than brush seal component 1 and rotor between honeycomb seal component 2 and rotor 300
Gap in the radial direction between 300, gap in the radial direction is close also greater than finger tip between honeycomb seal component 2 and rotor 300
Seal gap in the radial direction between component 3 and rotor 300.Here, gap is the inner surface and rotor of corresponding seal member
300 outer surface distance in the radial direction.In addition, term " first ", " second ", " third " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", " second ", " third " feature can explicitly or implicitly include at least one of the features.
Further, the first gap is 0.1mm~0.5mm；Second gap is 0.05mm~0.3mm.In other words, brush close
Gap in the radial direction between component 1 and rotor 300 is sealed in the range of 0.1mm~0.5mm, Finger seal component 3 and rotation
The range of gap in the radial direction in 0.05mm~0.3mm between body 300.More specifically, honeycomb seal component 2 and sealing tooth 4
Gap in the radial direction is 0.5mm~1mm, and in other words, the inner surface of honeycomb seal component 2 and the outer surface of sealing tooth 4 are in diameter
Upward gap is in 0.5mm~1mm range.
In some embodiments, thickness of the seal assembly in the axial direction of quiet body 200 is no more than 50mm, specifically, brush
The thickness of seal member 1 in the axial direction is no more than 2mm, and thickness of the honeycomb seal component in the axial direction is no more than 20mm.It can
With understanding, by doing specific design to brush seal component 1, honeycomb seal component 2 and Finger seal component 3, further
It is capable of the radial clearance of lesser control sealing, reduces amount of leakage, improve sealing effect.
In some embodiments, the longitudinal section (section shown in figure) for sealing tooth 4 is in rectangle or triangle, such as Fig. 1 institute
Showing, the longitudinal section for sealing tooth 4 is triangular in shape, as shown in Fig. 2, the longitudinal section of sealing tooth 4 is in rectangle, the present invention is not limited thereto,
The shape those skilled in the art for sealing the longitudinal section of tooth 4 can be determines according to actual conditions.
In some embodiments, as shown in Figure 1, brush seal component 1 includes the first brush seal component 11 and the second brush
Formula seal member 12, honeycomb seal component 2 include the first honeycomb seal component 21 and the second honeycomb seal component 22, and finger tip is close
It seals component 3 to be set between the first brush seal component 11 and the second brush seal component 12, the first honeycomb seal component 21 is set to
Between first brush seal component 11 and Finger seal component 3, the second honeycomb seal component 22 is set to 3 He of Finger seal component
Between second brush seal component 12.Further, Finger seal component 3 is located at the first brush seal component 11 and the second brush
The middle position of formula seal member 12.Further, as shown in Figure 1, the left end of the first honeycomb seal component 21 and the first brush
The right end of formula seal member 11 connects, and the right end of the first honeycomb seal component 21 is connect with the left end of Finger seal component 3；The
The left end of two honeycomb seal components 22 is connect with the right end of Finger seal component 3, the right end of the second honeycomb seal component 22 and
The left end of two brush seal components 12 connects.
In some embodiments, as shown in Fig. 2, Finger seal component 3 includes that the first Finger seal component 31 and second refers to
Sharp seal member 32, honeycomb seal component 2 includes the first honeycomb seal component 21 and the second honeycomb seal component 22, brush close
It seals component 1 to be set between the first Finger seal component 31 and the second Finger seal component 32, the first honeycomb seal component 21 is set to
Between first Finger seal component 31 and brush seal component 1, the second honeycomb seal component 22 is set to 1 He of brush seal component
Between second Finger seal component 32.Further, brush seal component 1 is located at the first Finger seal component 31 and second and refers to
The middle position of sharp seal member 32.Further, as shown in Fig. 2, the left end of the first honeycomb seal component 21 refers to first
The right end of sharp seal member 31 connects, and the right end of the first honeycomb seal component 22 is connect with the left end of brush seal component 1；The
The left end of two honeycomb seal components 22 is connect with the right end of brush seal component 1, the right end of the second honeycomb seal component 22 and
The left end of two Finger seal components 31 connects.
In some embodiments, the corresponding multiple sealing teeth 4 of a honeycomb seal component 2.In other words, the first honeycomb seal portion
The corresponding multiple sealing teeth 4 of part 21, the second honeycomb seal component 22 also correspond to multiple sealing teeth 4.Further, each honeycomb
The corresponding multiple sealing teeth 4 of seal member 2 are arranged along the axial uniform intervals of rotor 300.In the description of the present invention, " more
It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
Below with reference to the accompanying drawings the seal assembly for rotary machine of 1 description specific embodiment according to the present invention.
As shown in Figure 1, the seal assembly 100 according to an embodiment of the present invention for rotary machine, rotary machine includes quiet
Body 200 and rotor 300, quiet body 200 is looped around the periphery of rotor 300, and rotor 300 can be rotatable around its axis, close
Sealing assembly 100 includes brush seal component 1, honeycomb seal component 2, Finger seal component 3 and sealing tooth 4, brush seal component
1, honeycomb seal component 2 and Finger seal component 3 are suitable for being located at the inner peripheral surface of quiet body 200, and the inner peripheral surface is and rotor
300 rotor 300 diametrically opposite inner peripheral surface.
Second brush seal component 12 of first brush seal component 11 and right side of the brush seal component 1 including left side,
Honeycomb seal component 2 includes the first honeycomb seal component 21 in left side and the second honeycomb seal component 22 on right side, Finger seal
Component 3 is set between the first brush seal component 11 and the second brush seal component 12 and is located at the first brush seal component 11
With the middle position of the second brush seal component 12, the first honeycomb seal component 21 is set to the first brush seal component 11 and refers to
Between sharp seal member 3, the second honeycomb seal component 22 is set between Finger seal component 3 and the second brush seal component 12,
And first the left end of honeycomb seal component 21 connect with the right end of the first brush seal component 11, the first honeycomb seal component 21
Right end connect with the left end of Finger seal component 3；The left end of second honeycomb seal component 22 and the right side of Finger seal component 3
End connection, the right end of the second honeycomb seal component 22 are connect with the left end of the second brush seal component 12.
The periphery of rotor 300 is equipped with 6 longitudinal sections sealing tooth 4 triangular in shape, wherein 3 sealing teeth 4 are in rotor
Uniform intervals arrangement and being radially oppositely arranged with the first honeycomb seal component 21 in rotor 300 in 300 axial direction, separately
Outer 3 sealings tooth 4 uniform intervals in the axial direction of rotor 300 are arranged and in the radially close with the second honeycomb of rotor 300
Envelope component 22 is oppositely arranged.
Brush seal component 1 and rotor 300 have the first gap, Finger seal component 3 and rotor 300 radially
There is the second gap radially, honeycomb seal component 2 and rotor 300 have third space radially, wherein third
Gap is greater than the first gap and the second gap, and the first gap is 0.1mm~0.5mm；Second gap is 0.05mm~0.3mm.Bee
Nest seal member 2 and the sealing gap in the radial direction of tooth 4 are 0.5mm~1mm, thickness of the seal assembly in the axial direction of quiet body 200
Degree is no more than 50mm, and specifically, the thickness of brush seal component 1 in the axial direction is no more than 2mm, and honeycomb seal component is described
Thickness in axial direction is no more than 20mm.
The seal assembly 100 in accordance with another embodiment of the present invention for rotary machine is described below with reference to Fig. 2.Such as figure
Shown in 2, seal assembly 100 includes brush seal component 1, honeycomb seal component 2, Finger seal component 3 and seals tooth 4, close
The longitudinal section for sealing tooth 4 is in rectangle.
Second Finger seal component 32 of first Finger seal component 31 and right side of the Finger seal component 3 including left side,
Honeycomb seal component 2 includes the first honeycomb seal component 21 in left side and the second honeycomb seal component 22 on right side, brush seal
Component 1 is set between the first Finger seal component 31 and the second Finger seal component 32 and is located at the first Finger seal component 31
With the middle position of the second Finger seal component 32, the first honeycomb seal component 21 is set to the first Finger seal component 31 and brush
Between formula seal member 1, the second honeycomb seal component 22 is set between brush seal component 1 and the second Finger seal component 32,
The left end of first honeycomb seal component 21 is connect with the right end of the first Finger seal component 31, the first honeycomb seal component 22
Right end is connect with the left end of brush seal component 1；The left end of second honeycomb seal component 22 and the right end of brush seal component 1
Connection, the right end of the second honeycomb seal component 22 are connect with the left end of the second Finger seal component 31.
The other structures of seal assembly shown in Fig. 2 and operation can be identical as embodiment illustrated in fig. 1, here no longer in detail
Description.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
Combination and combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (12)
1. a kind of seal assembly for rotary machine, the rotary machine includes quiet body and rotor, which is characterized in that described
Seal assembly includes brush seal component, honeycomb seal component and Finger seal component, the brush seal component, the honeycomb
Seal member and the Finger seal component are suitable for being located on the quiet body, the brush seal component and the Finger seal portion
Part is alternately arranged along the axial direction of the rotor, and the honeycomb seal component is located at the brush seal component and the finger tip is close
Seal between component and opposite with the sealing tooth on the surface for being located at the rotor, the honeycomb seal component and the sealing tooth
Constitute labyrinth seal.
2. the seal assembly according to claim 1 for rotary machine, which is characterized in that the brush seal component with
The outer surface of the rotor radially has the first gap, the appearance of the Finger seal component and the rotor described
Face radially has the second gap described, and the outer surface of the honeycomb seal component and the rotor radially has described
There is third space, the third space is greater than first gap and second gap.
3. the seal assembly according to claim 2 for rotary machine, which is characterized in that first gap is
0.1mm~0.5mm；Second gap is 0.05mm~0.3mm.
4. the seal assembly according to claim 1 for rotary machine, which is characterized in that the honeycomb seal component with
The sealing tooth is 0.5mm~1mm in the gap radially of the quiet body.
5. the seal assembly according to claim 1 for rotary machine, which is characterized in that the seal assembly is described
Thickness in the axial direction of quiet body is no more than 50mm.
6. the seal assembly according to claim 5 for rotary machine, which is characterized in that the brush seal component exists
Thickness in the axial direction is no more than 2mm, and thickness of the honeycomb seal component in the axial direction is no more than 20mm.
7. the seal assembly according to claim 1 for rotary machine, which is characterized in that the sealing tooth longitudinal section is in
Rectangle or triangle.
8. the seal assembly according to claim 1 for rotary machine, which is characterized in that the brush seal component packet
Include the first brush seal component and the second brush seal component, the honeycomb seal component includes the first honeycomb seal component and the
Two honeycomb seal components, the Finger seal component are set to the first brush seal component and the second brush seal component
Between, the first honeycomb seal component is set between the first brush seal component and the Finger seal component, described
Second honeycomb seal component is set between the Finger seal component and the second brush seal component.
9. the seal assembly according to claim 8 for rotary machine, which is characterized in that Finger seal component position
In the middle position of the first brush seal component and the second brush seal component.
10. the seal assembly according to claim 1 for rotary machine, which is characterized in that the Finger seal component
Including the first Finger seal component and the second Finger seal component, the honeycomb seal component include the first honeycomb seal component and
Second honeycomb seal component, the brush seal component are set to the first Finger seal component and second Finger seal portion
Between part, the first honeycomb seal component is set between the first Finger seal component and the brush seal component, institute
The second honeycomb seal component is stated to be set between the brush seal component and the second Finger seal component.
11. the seal assembly according to claim 10 for rotary machine, which is characterized in that the brush seal component
Positioned at the middle position of the first Finger seal component and the second Finger seal component.
12. the seal assembly of rotary machine is used for described in any one of -11 according to claim 1, which is characterized in that an institute
It states honeycomb seal component and corresponds to multiple sealing teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425232.XA CN110454576A (en) | 2018-05-07 | 2018-05-07 | Seal assembly for rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425232.XA CN110454576A (en) | 2018-05-07 | 2018-05-07 | Seal assembly for rotary machine |
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|---|---|
| CN110454576A true CN110454576A (en) | 2019-11-15 |
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ID=68471603
Family Applications (1)
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|---|---|---|---|
| CN201810425232.XA Pending CN110454576A (en) | 2018-05-07 | 2018-05-07 | Seal assembly for rotary machine |
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|---|---|---|---|---|
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| WO2001055624A1 (en) * | 2000-01-31 | 2001-08-02 | General Electric Company | Brush seals for steam turbine applications |
| CN201100408Y (en) * | 2007-11-14 | 2008-08-13 | 南京信润科技有限公司 | Multi-level cellular brush sealing device |
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| CN206361152U (en) * | 2016-12-27 | 2017-07-28 | 成都爱迪电力设备有限公司 | A kind of metal honeycomb seal structure |
| CN208519179U (en) * | 2018-05-07 | 2019-02-19 | 中国联合重型燃气轮机技术有限公司 | Seal assembly for rotary machine |
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| WO2001055624A1 (en) * | 2000-01-31 | 2001-08-02 | General Electric Company | Brush seals for steam turbine applications |
| CN201100408Y (en) * | 2007-11-14 | 2008-08-13 | 南京信润科技有限公司 | Multi-level cellular brush sealing device |
| CN101649908A (en) * | 2009-09-18 | 2010-02-17 | 哈尔滨工程大学 | Labyrinth and fingertip combined type seal structure |
| CN102518477A (en) * | 2011-12-31 | 2012-06-27 | 中国燃气涡轮研究院 | Finger sealing device |
| US20130181408A1 (en) * | 2012-01-13 | 2013-07-18 | General Electric Company | Brush seal arrangement combined with honeycomb seal |
| CN103711527A (en) * | 2014-01-17 | 2014-04-09 | 清华大学 | Brush type sealing and fingertip sealing combined seal |
| CN104806301A (en) * | 2015-04-03 | 2015-07-29 | 清华大学 | Non-contact fingertip-labyrinth-brush type combined sealer |
| CN105587345A (en) * | 2016-01-26 | 2016-05-18 | 山西国峰煤电有限责任公司 | High pressure cylinder shaft seal device for power station steam turbine |
| CN106369166A (en) * | 2016-10-13 | 2017-02-01 | 中国航空动力机械研究所 | Fingertip sealing device |
| CN206361152U (en) * | 2016-12-27 | 2017-07-28 | 成都爱迪电力设备有限公司 | A kind of metal honeycomb seal structure |
| CN208519179U (en) * | 2018-05-07 | 2019-02-19 | 中国联合重型燃气轮机技术有限公司 | Seal assembly for rotary machine |
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