CN205779434U - A kind of vertical hydrogenerator bearing oil groove sealing device - Google Patents
A kind of vertical hydrogenerator bearing oil groove sealing device Download PDFInfo
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- CN205779434U CN205779434U CN201620601179.0U CN201620601179U CN205779434U CN 205779434 U CN205779434 U CN 205779434U CN 201620601179 U CN201620601179 U CN 201620601179U CN 205779434 U CN205779434 U CN 205779434U
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- sealing block
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a kind of vertical hydrogenerator bearing oil groove sealing device, belong to hydrogenerator technical field of sealing technology, including oil groove, thrust collar axle journal and sealing lid, it is characterized in that: on described thrust collar axle journal, be provided with disk boss, described sealing covers and arranges inner side cavity and outboard chambers, in described inboard cavity body, sealing block is set, described sealing block is placed on disk boss, described sealing block lower end has notch, upper end has passage, passage connects with notch, and the outer wall of described inner side cavity connects sealing tooth.Sealing block lower end of the present utility model has notch, by being passed through the air of certain pressure in notch, being formed for one layer of stable high pressure air film between sealing block and disk boss upper surface, fitted seal tooth just can effectively seal mist of oil, prevent mist of oil from leaking, there is good oil mist sealing effect.
Description
Technical field
This utility model relates to hydrogenerator technical field of sealing technology, particularly relates to a kind of vertical hydrogenerator bearing
Oil groove sealing device.
Background technology
Existing vertical hydrogenerator bearing oil groove sealing device mainly has several big class form.One class is contactless comb
Tooth seals, and its structure mainly includes oil groove, thrust collar axle journal and seals lid, and its defect is that leakage rate is big, containing oil in leakage
Mist, in During Process of Long-term Operation, mist of oil meeting coagulation, in rotor air channel, affects engine health and runs.One class is that contact is close
Envelope, sealing friction pair typically uses macromolecular material, carbon, hairbrush etc., and its sealing effectiveness is better than contactless labyrinth seal, but
Be that friction pair abrasion is very serious in running, sometimes there is also frictional heat, cause slide rotor lose hot jacket tightly measure,
The problems such as shaft displacement increase.Also having a class is hermetic seal, and sealing lid typically has two-layer cannelure, and it constitutes two-layer chamber with axle surface
Body, between cavity, axially disposed layer comb seals, and one layer of cavity is passed through air wherein, and arranges area from absorbing smoke outwards machine from another
Cavity air-breathing, when use noncontact comb time, the method sealing effectiveness is the best, use contact comb time, sealing effectiveness still can,
But fretting wear is serious.Publication No. CN 201810458U, publication date is that the Chinese patent literature of on 04 27th, 2011 is open
A kind of automatic compensation type gapless sealed oil baffle of hydraulic generator, is characterized in that: by shell, location screw, propelling spring, the
Body sealing together, second piece of seal and the 3rd piece of seal are constituted, and first piece of seal, second piece of seal and the 3rd piece are close
Two holes, location being parallel to each other, first piece of seal, second piece of seal and the 3rd piece of seal phase is had on envelope body
Interconnection is connected into full circle, and jointing edge is a pair supplementary angle bonded to each other, and shell is drilled with screwed hole, equipped location spiral shell in this screwed hole
Nail, first piece of seal, second piece of seal and the 3rd piece of seal are positioned screw respectively and are limited in the annular groove of shell, push away
Entering spring to be positioned on annular groove inner face, the propelling spring other end is compressed on first piece of seal, second piece of seal and the 3rd piece
On seal.
Automatic compensation type gapless sealed oil baffle of hydraulic generator disclosed in this patent documentation, owing to propelling spring is for a long time
It is susceptible to deformation after using, causes the sealing between seal and rotating shaft and between seal to reduce, and then easily cause
Mist of oil leaks, and affects oil mist sealing effect.
Utility model content
This utility model is in order to overcome the defect of above-mentioned prior art, it is provided that a kind of vertical hydrogenerator bearing oil groove is close
Seal apparatus, sealing block lower end of the present utility model has notch, by being passed through the air of certain pressure in notch, sealing block with
Being formed for one layer of stable high pressure air film between disk boss upper surface, fitted seal tooth just can effectively seal mist of oil, prevent
Mist of oil leaks, and has good oil mist sealing effect.
This utility model is achieved through the following technical solutions:
A kind of vertical hydrogenerator bearing oil groove sealing device, including oil groove, thrust collar axle journal and sealing lid, its feature
Being: be provided with disk boss on described thrust collar axle journal, described sealing covers and arranges inner side cavity and outboard chambers, described interior
Arranging sealing block in side chamber body, described sealing block is placed on disk boss, and described sealing block lower end has notch, and upper end has logical
Pore, passage connects with notch, and the outer wall of described inner side cavity connects sealing tooth.
The upper surface of described disk boss has multiple radial slot on along the circumferential direction, multiple radial slots are uniformly distributed.
Described outboard chambers is two, and an outboard chambers and inner side cavity arranged radially, another outboard chambers is positioned at
The lower section of disk boss.
Described sealing tooth is multilamellar, and multi-layer sealed tooth is axially arranged along the outer wall of inner side cavity, any two-layer adjacent seals
Spacing between tooth is identical.
The degree of depth of described radial slot is 1 μm-5mm.
During use, during generator rotation part stationary, sealing block is placed on thrust collar axle journal table on the disk boss arranged
Face, the passage of sealing block upper end is connected with the air-blast device sealed outside covering by pipeline, when generator rotation parts move
Time, in the notch of sealing block lower end, the air of certain pressure it is passed through by pipeline and passage, sealing block is convex with described disk
Being formed for one layer of stable high pressure air film between platform upper surface, inside cooperation, the sealing tooth on chamber outer wall just can effectively seal
Mist of oil.
The beneficial effects of the utility model are mainly manifested in following aspect:
One, this utility model, thrust collar axle journal is provided with disk boss, and sealing covers and arranges inner side cavity and outboard cavity
Body, arranges sealing block in inboard cavity body, sealing block is placed on disk boss, and sealing block lower end has notch, and upper end has ventilation
Hole, passage connects with notch, and the outer wall of inner side cavity connects sealing tooth, during the motion of generator rotation parts, by logical
Pore is passed through the air of certain pressure in the notch of sealing block lower end, with regard to shape between sealing block and described disk boss upper surface
Becoming one layer of stable high pressure air film, inside cooperation, the sealing tooth on chamber outer wall just can effectively seal mist of oil, prevents outside mist of oil
Let out, there is good oil mist sealing effect.
Two, this utility model, the upper surface of disk boss has multiple radial slot on along the circumferential direction, multiple radial slots are equal
Even distribution, it is possible to make on disk boss the position away from passage also form stable high pressure air film, so around thrust collar axle
On neck, the upper surface of whole disk boss can form one layer of more uniform high pressure air film, is beneficial to improve oil mist sealing effect.
Three, this utility model, outboard chambers is two, and an outboard chambers and inner side cavity arranged radially, outside another
Side chamber body is positioned at the lower section of disk boss, forms two-layer cavity body structure, and oil mist sealing is better.
Four, this utility model, sealing tooth is multilamellar, and multi-layer sealed tooth is axially arranged along the outer wall of inner side cavity, any two
Spacing between layer adjacent seals tooth is identical, uses the sealing tooth of multilamellar, forms multiple-layer overlapped and seals, and arbitrarily two-layer seals in addition
Between tooth, spacing is identical, and every layer of sealing effectiveness sealing tooth is the most homogeneous, and then is beneficial to improve oil mist sealing.
Five, this utility model, the degree of depth of radial slot is 1 μm-5mm, uses the degree of depth of this particular range, it is simple to manufacture,
And can ensure that the upper surface of whole disk boss forms one layer of more uniform high pressure air film.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, this utility model is described in further detail, its
In:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the structural representation of this utility model embodiment 3；
Fig. 4 is the enlarged drawing in Fig. 3 at B；
Labelling in figure: 1, oil groove, 2, thrust collar axle journal, 3, seal lid, 4, disk boss, 5, inner side cavity, 6, outboard cavity
Body, 7, sealing block, 8, notch, 9, passage, 10, seal tooth, 11, radial slot.
Detailed description of the invention
Embodiment 1
Seeing Fig. 1 and Fig. 2, a kind of vertical hydrogenerator bearing oil groove sealing device, including oil groove 1, thrust collar axle journal 2
With sealing lid 3, described thrust collar axle journal 2 being provided with disk boss 4, described sealing arranges inner side cavity 5 and outboard cavity on lid 3
Body 6, arranges sealing block 7 in described inner side cavity 5, described sealing block 7 is placed on disk boss 4, and described sealing block 7 lower end has
Notch 8, upper end has passage 9, and passage 9 connects with notch 8, the outer wall of described inner side cavity 5 connects and has sealing tooth 10.
The present embodiment is most basic embodiment, and thrust collar axle journal is provided with disk boss, and sealing covers in arranging
Side chamber body and outboard chambers, arrange sealing block in inboard cavity body, sealing block is placed on disk boss, and sealing block lower end has groove
Mouthful, upper end has passage, and passage connects with notch, and the outer wall of inner side cavity connects sealing tooth, generator rotation portion
During part motion, being passed through the air of certain pressure in the notch of sealing block lower end by passage, sealing block is convex with described disk
Being formed for one layer of stable high pressure air film between platform upper surface, inside cooperation, the sealing tooth on chamber outer wall just can effectively seal
Mist of oil, prevents mist of oil from leaking, and has good oil mist sealing effect.
Embodiment 2
Seeing Fig. 1 and Fig. 2, a kind of vertical hydrogenerator bearing oil groove sealing device, including oil groove 1, thrust collar axle journal 2
With sealing lid 3, described thrust collar axle journal 2 being provided with disk boss 4, described sealing arranges inner side cavity 5 and outboard cavity on lid 3
Body 6, arranges sealing block 7 in described inner side cavity 5, described sealing block 7 is placed on disk boss 4, and described sealing block 7 lower end has
Notch 8, upper end has passage 9, and passage 9 connects with notch 8, the outer wall of described inner side cavity 5 connects and has sealing tooth 10.
The upper surface of described disk boss 4 has multiple radial slot 11 on along the circumferential direction, multiple radial slots 11 uniformly divide
Cloth.
The present embodiment is a better embodiment, and the upper surface of disk boss has multiple radial slot on along the circumferential direction,
Multiple radial slots are uniformly distributed, it is possible to make on disk boss the position away from passage also form stable high pressure air film, so
On thrust collar axle journal, the upper surface of whole disk boss can form one layer of more uniform high pressure air film, is beneficial to improve oil
Mist sealing effectiveness.
Embodiment 3
Seeing Fig. 3 and Fig. 4, a kind of vertical hydrogenerator bearing oil groove sealing device, including oil groove 1, thrust collar axle journal 2
With sealing lid 3, described thrust collar axle journal 2 being provided with disk boss 4, described sealing arranges inner side cavity 5 and outboard cavity on lid 3
Body 6, arranges sealing block 7 in described inner side cavity 5, described sealing block 7 is placed on disk boss 4, and described sealing block 7 lower end has
Notch 8, upper end has passage 9, and passage 9 connects with notch 8, the outer wall of described inner side cavity 5 connects and has sealing tooth 10.
The upper surface of described disk boss 4 has multiple radial slot 11 on along the circumferential direction, multiple radial slots 11 uniformly divide
Cloth.
Described outboard chambers 6 is two, an outboard chambers 6 and inner side cavity 5 arranged radially, another outboard chambers 6
It is positioned at the lower section of disk boss 4.
Described sealing tooth 10 is multilamellar, and multi-layer sealed tooth 10 is axially arranged along the outer wall of inner side cavity 5, and any two-layer is adjacent
Seal the spacing between tooth 10 identical.
The present embodiment is another better embodiment, and outboard chambers is two, and an outboard chambers is with inner side cavity radially
Arrangement, another outboard chambers is positioned at the lower section of disk boss, forms two-layer cavity body structure, and oil mist sealing is better.Seal
Tooth is multilamellar, and multi-layer sealed tooth is axially arranged along the outer wall of inner side cavity, and the spacing between any two-layer adjacent seals tooth is identical,
Using the sealing tooth of multilamellar, form multiple-layer overlapped and seal, between any two-layer sealing tooth, spacing is identical in addition, and every layer seals tooth
Sealing effectiveness is the most homogeneous, and then is beneficial to improve oil mist sealing.
Embodiment 4
Seeing Fig. 3 and Fig. 4, a kind of vertical hydrogenerator bearing oil groove sealing device, including oil groove 1, thrust collar axle journal 2
With sealing lid 3, described thrust collar axle journal 2 being provided with disk boss 4, described sealing arranges inner side cavity 5 and outboard cavity on lid 3
Body 6, arranges sealing block 7 in described inner side cavity 5, described sealing block 7 is placed on disk boss 4, and described sealing block 7 lower end has
Notch 8, upper end has passage 9, and passage 9 connects with notch 8, the outer wall of described inner side cavity 5 connects and has sealing tooth 10.
The upper surface of described disk boss 4 has multiple radial slot 11 on along the circumferential direction, multiple radial slots 11 uniformly divide
Cloth.
Described outboard chambers 6 is two, an outboard chambers 6 and inner side cavity 5 arranged radially, another outboard chambers 6
It is positioned at the lower section of disk boss 4.
Described sealing tooth 10 is multilamellar, and multi-layer sealed tooth 10 is axially arranged along the outer wall of inner side cavity 5, and any two-layer is adjacent
Seal the spacing between tooth 10 identical.
The degree of depth of described radial slot 11 is 1 μm.
Embodiment 5
Seeing Fig. 3 and Fig. 4, a kind of vertical hydrogenerator bearing oil groove sealing device, including oil groove 1, thrust collar axle journal 2
With sealing lid 3, described thrust collar axle journal 2 being provided with disk boss 4, described sealing arranges inner side cavity 5 and outboard cavity on lid 3
Body 6, arranges sealing block 7 in described inner side cavity 5, described sealing block 7 is placed on disk boss 4, and described sealing block 7 lower end has
Notch 8, upper end has passage 9, and passage 9 connects with notch 8, the outer wall of described inner side cavity 5 connects and has sealing tooth 10.
The upper surface of described disk boss 4 has multiple radial slot 11 on along the circumferential direction, multiple radial slots 11 uniformly divide
Cloth.
Described outboard chambers 6 is two, an outboard chambers 6 and inner side cavity 5 arranged radially, another outboard chambers 6
It is positioned at the lower section of disk boss 4.
Described sealing tooth 10 is multilamellar, and multi-layer sealed tooth 10 is axially arranged along the outer wall of inner side cavity 5, and any two-layer is adjacent
Seal the spacing between tooth 10 identical.
The degree of depth of described radial slot 11 is 3 μm.
Embodiment 6
Seeing Fig. 3 and Fig. 4, a kind of vertical hydrogenerator bearing oil groove sealing device, including oil groove 1, thrust collar axle journal 2
With sealing lid 3, described thrust collar axle journal 2 being provided with disk boss 4, described sealing arranges inner side cavity 5 and outboard cavity on lid 3
Body 6, arranges sealing block 7 in described inner side cavity 5, described sealing block 7 is placed on disk boss 4, and described sealing block 7 lower end has
Notch 8, upper end has passage 9, and passage 9 connects with notch 8, the outer wall of described inner side cavity 5 connects and has sealing tooth 10.
The upper surface of described disk boss 4 has multiple radial slot 11 on along the circumferential direction, multiple radial slots 11 uniformly divide
Cloth.
Described outboard chambers 6 is two, an outboard chambers 6 and inner side cavity 5 arranged radially, another outboard chambers 6
It is positioned at the lower section of disk boss 4.
Described sealing tooth 10 is multilamellar, and multi-layer sealed tooth 10 is axially arranged along the outer wall of inner side cavity 5, and any two-layer is adjacent
Seal the spacing between tooth 10 identical.
The degree of depth of described radial slot 11 is 5 μm.
The present embodiment is preferred forms, and thrust collar axle journal is provided with disk boss, and sealing covers and arranges inboard cavity
Body and outboard chambers, arrange sealing block in inboard cavity body, sealing block is placed on disk boss, and sealing block lower end has notch, on
End has passage, and passage connects with notch, and the outer wall of inner side cavity connects sealing tooth, and generator rotation parts move
Time, in the notch of sealing block lower end, the air of certain pressure, sealing block and table on described disk boss it is passed through by passage
Being formed for one layer of stable high pressure air film between face, inside cooperation, the sealing tooth on chamber outer wall just can effectively seal mist of oil,
Prevent mist of oil from leaking, there is good oil mist sealing effect.The degree of depth of radial slot is 5 μm, it is simple to manufactures, and can ensure whole
The upper surface of individual disk boss forms one layer of more uniform high pressure air film.
Claims (5)
1. a vertical hydrogenerator bearing oil groove sealing device, including oil groove (1), thrust collar axle journal (2) and sealing lid
(3), it is characterised in that: being provided with disk boss (4) on described thrust collar axle journal (2), described sealing arranges inboard cavity on lid (3)
Body (5) and outboard chambers (6), arrange sealing block (7) in described inner side cavity (5), described sealing block (7) is placed in disk boss
(4) on, described sealing block (7) lower end has notch (8), and upper end has passage (9), and passage (9) connects with notch (8),
Connect on the outer wall of described inner side cavity (5) and have sealing tooth (10).
A kind of vertical hydrogenerator bearing oil groove sealing device the most according to claim 1, it is characterised in that: described circle
The upper surface of dish boss (4) has multiple radial slot (11) on along the circumferential direction, multiple radial slots (11) are uniformly distributed.
A kind of vertical hydrogenerator bearing oil groove sealing device the most according to claim 1 and 2, it is characterised in that: institute
Stating outboard chambers (6) is two, an outboard chambers (6) and inner side cavity (5) arranged radially, another outboard chambers (6) position
Lower section in disk boss (4).
A kind of vertical hydrogenerator bearing oil groove sealing device the most according to claim 1, it is characterised in that: described close
Envelope tooth (10) is multilamellar, and multi-layer sealed tooth (10) is axially arranged along the outer wall of inner side cavity (5), any two-layer adjacent seals tooth
(10) spacing between is identical.
A kind of vertical hydrogenerator bearing oil groove sealing device the most according to claim 2, it is characterised in that: described footpath
The degree of depth to groove (11) is 1 μm-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601179.0U CN205779434U (en) | 2016-06-20 | 2016-06-20 | A kind of vertical hydrogenerator bearing oil groove sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601179.0U CN205779434U (en) | 2016-06-20 | 2016-06-20 | A kind of vertical hydrogenerator bearing oil groove sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205779434U true CN205779434U (en) | 2016-12-07 |
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ID=58132148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620601179.0U Active CN205779434U (en) | 2016-06-20 | 2016-06-20 | A kind of vertical hydrogenerator bearing oil groove sealing device |
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| CN (1) | CN205779434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469672A (en) * | 2019-08-15 | 2019-11-19 | 东方电气集团东方电机有限公司 | Generate electricity sump oil mist prevention system |
| CN114754077A (en) * | 2022-04-24 | 2022-07-15 | 华能澜沧江水电股份有限公司 | Oil mist prevention device for thrust bearing of hydroelectric generating set and using method thereof |
-
2016
- 2016-06-20 CN CN201620601179.0U patent/CN205779434U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469672A (en) * | 2019-08-15 | 2019-11-19 | 东方电气集团东方电机有限公司 | Generate electricity sump oil mist prevention system |
| CN110469672B (en) * | 2019-08-15 | 2020-12-25 | 东方电气集团东方电机有限公司 | Oil mist prevention system for generator oil groove |
| CN114754077A (en) * | 2022-04-24 | 2022-07-15 | 华能澜沧江水电股份有限公司 | Oil mist prevention device for thrust bearing of hydroelectric generating set and using method thereof |
| CN114754077B (en) * | 2022-04-24 | 2023-11-17 | 华能澜沧江水电股份有限公司 | Oil mist preventing device for thrust bearing of hydroelectric generating set and application method of oil mist preventing device |
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