CN107152532A - A kind of blade profile liquid labyrinth seal - Google Patents
A kind of blade profile liquid labyrinth seal Download PDFInfo
- Publication number
- CN107152532A CN107152532A CN201710405375.XA CN201710405375A CN107152532A CN 107152532 A CN107152532 A CN 107152532A CN 201710405375 A CN201710405375 A CN 201710405375A CN 107152532 A CN107152532 A CN 107152532A
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing assembly
- shell
- blade profile
- type ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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 blade profile liquid labyrinth seal, including shell (1), rotating shaft (2), F types ring (31), dry font ring (41), outer sealing assembly and interior sealing assembly, the interior sealing assembly, outer sealing assembly is arranged in shell (1) from inside to outside, the shell (1), rotating shaft (2), liquid labyrinth region is formed between outer sealing assembly and interior sealing assembly, liquid labyrinth area filling has liquid sealant, so that adjacent sealing ring one (32) and sealing ring two (42) formation glue sealing, structure of the present invention and simple, good sealing effect.
Description
Technical field
The present invention relates to a kind of labyrinth seal, more particularly to a kind of steam turbine, gas turbine, compressor, air blower
Shaft end and level between liquid labyrinth seal,
Background technology
Labyrinth seal is that several belt sealing teeth being arranged in order are set around rotating shaft, is formed between tooth and tooth a series of
Dam gap and expansion cavity, and sealed medium produces throttle effect at the gap by tortuous labyrinth and reaches the mesh of Drain Resistance
's.Due to there is gap between the rotor and casing of labyrinth seal, no solid contact needn't lubricate, and allow have thermal expansion, adapt to
High temperature, high pressure, the occasion of high speed-frequency.But, just These characteristics due to labyrinth seal so that it needs high-precision situation
During lower air seal, required precision and sealing effectiveness are extremely difficult to.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of good sealing effect, air tight
Blade profile liquid labyrinth seal.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of blade profile liquid labyrinth seal, including shell (1), rotating shaft (2), the first type ring (31), Second-Type ring (41),
Outer sealing assembly and interior sealing assembly, the interior sealing assembly, outer sealing assembly are arranged in shell (1) from inside to outside, and described
Interior sealing assembly, outer sealing assembly are located between rotating shaft (2) and shell (1)；The shell (1), rotating shaft (2), outer sealing assembly and interior
Liquid labyrinth region is formed between sealing assembly, the Second-Type ring (41) is fixedly mounted in rotating shaft (2), and the first type ring
(31) be fixedly mounted on shell (1), the first type ring (31) includes the first blade profile ring (32), the first blade profile ring (32) into
To being arranged on shell (1), and the Second-Type ring (41) includes the second blade profile ring and cup type ring, and the Second-Type ring (41) sets
It is placed between every the first blade profile of team ring (32), and the cup type ring is arranged between adjacent two teams' the first blade profile ring (32)；Institute
Stating liquid labyrinth area filling has liquid sealant so that sealing ring one (32) and Second-Type on the first adjacent type ring (31)
Sealing ring two (42) the formation glue sealing of ring (41), the outer sealing assembly includes envelope one (51), metallic framework one (52), lip
End one (53), spring one (54), auxiliary section one (55) and dustproof part (56) are tightened up, the metallic framework one (52) is arranged at
In envelope one (51), and the auxiliary section one (55) is arranged between shell (1) and envelope one (51), the lip end one
(53), dustproof part (56) is arranged at the side of envelope one (51) adjacent shafts (2), and the spring one (54) of tightening up is arranged on
On lip end one (53)；The interior sealing assembly includes interior capsule two (61), metallic framework two (62), lip end two (63), tightened up
Spring two (64), auxiliary section two (65), the metallic framework two (52) are arranged in interior capsule two (61), and the auxiliary section two
(65) it is arranged between shell (1) and interior capsule two (61), the lip end two (63) is arranged at interior adjacent turn of capsule two (61)
The side of axle (2), and the spring two (64) of tightening up is arranged on lip end two (63).
It is preferred that：The shell (1) is provided with the interface (11) for injecting liquid sealant.
It is preferred that：The auxiliary section one (55), auxiliary section two (65) are rubber seal.
It is preferred that：The sealing ring one (32) of the first T-shaped ring (31), the number of sealing ring two (42) are 2.
The present invention compared with prior art, has the advantages that：
The present invention is by shell (1), rotating shaft (2), outer sealing assembly and interior sealing assembly formation liquid labyrinth region, by first
Type ring (31), Second-Type ring (41) are arranged in the region of liquid labyrinth, then inject liquid sealant in the region of liquid labyrinth,
When the spindle is rotated, because the first type ring (31), Second-Type ring (41) are mutually twisted, sealing ring one (32) and sealing ring two (42)
Faying face formed and a kind of have viscosity, the continuous film of the uniform stabilization of viscoplasticity or strippable property, in the present invention, lead to
Cross and form labyrinth channel for the first type ring (31), Second-Type ring (41), when being sealed, first pass around interior sealing assembly and stop gas
The ejection of stream, gas flow is reduced, and a part of air-flow is blocked on the outside of interior sealing assembly, and another part air-flow is entered
In the region of liquid labyrinth, under the effect of the pressure, liquid sealant movement is push, due to the=the first type ring (31), Second-Type ring
(41) spacing is small (generally below 0.1mm) between, and gas is difficult to promote liquid sealant, and with the increase of pressure, gas is gradually
Liquid sealant is promoted, liquid sealant is walked in the presence of air-flow along labyrinth passage, produce labyrinth effect, due to fan
The effect of palace effect, liquid sealant is heated so that the viscosity and elasticity of liquid sealant are strengthened, liquid sealant
The enhancing of viscosity and elasticity so that sealing ring one (32) and the film toughness of the faying face formation of sealing ring two (42) are stronger, gas
Stream is more difficult to be passed through, when air-flow workmanship, which expends energy, breaks through film, due to the rotation of rotating shaft, sealing ring one (32) and sealing
Ring two (42) is mutually rotated, and forms new sealing film, this process continues with the rotation of rotating shaft, when air-flow finally goes out liquid
Labyrinth region, reach outer sealing assembly when, due to air-flow liquid labyrinth drive liquid sealant flowing, and sealing ring one (32) and
Interaction between sealing ring two (42) so that form bubble stream between fraction and liquid sealant, and remaining gas
Stream energy is further reduced, due to and liquid sealant in the presence of air-flow, formed HTHP liquid sealant, high temperature
The outside sealing assembly of liquid sealant of high pressure and the movement of interior sealing assembly, are depressurized, so, under the drive of rotating shaft, covering group
Contact surface between the lip end one (53) of part and rotating shaft (2) also forms diaphragm seal, the lip end two (63) of interior sealing assembly with
Contact surface between rotating shaft (2) also forms diaphragm seal, arrives to outer sealing assembly air-flow and makees in lip end one (53) sealing film
Under, energy is further reduced, and now due to the contact surface between the lip end two (63) of interior sealing assembly and rotating shaft (2) also shape
Into diaphragm seal so that the gas entered in the region of liquid labyrinth is more difficult, when entering the gas in the region of liquid labyrinth
Body is more, and liquid sealant work is more, in the environment of high pressure, and more preferably, viscosity is more excellent, and internal gas is more difficult to for its activity
Flee from, and then can effectively prevent air-flow from being exchanged with extraneous.In addition, being set using the first type ring (31), Second-Type ring (41)
Labyrinth channel is placed in, the contact surface between the first type ring (31), Second-Type ring (41) is added, and then add liquid labyrinth area
The amount of the film formed so that air-flow is more difficult to break through the sealing of seal, good sealing effect.
Brief description of the drawings
Fig. 1 is the structural representation of embodiments of the invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, it should be understood that these examples are merely to illustrate this
Invention rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are various to the present invention's
The modification of the equivalent form of value falls within the application appended claims limited range.
A kind of blade profile liquid labyrinth seal, as shown in figure 1, including shell 1, rotating shaft 2, the first type ring 31, Second-Type ring
41st, outer sealing assembly and interior sealing assembly, the interior sealing assembly, outer sealing assembly are arranged in shell 1 from inside to outside, and described
Interior sealing assembly, outer sealing assembly are located between rotating shaft 2 and shell 1；The shell 1, rotating shaft 2, outer sealing assembly and interior sealing assembly it
Between formed liquid labyrinth region, the Second-Type ring 41 is fixedly mounted in rotating shaft 2, and the first type ring 31 is fixedly mounted on
Shell 1, the first type ring 31 includes the first blade profile ring 32, and the first blade profile ring 32 is arranged in pairs on shell 1, and described
Second-Type ring 41 includes the second blade profile ring and cup type ring, and the Second-Type ring 41 is arranged between every the first blade profile of team ring 32, and
The cup type ring is arranged between adjacent two teams' the first blade profile ring 32；Liquid labyrinth area filling has liquid sealant,
So that the formation glue sealing of sealing ring 2 42 of the sealing ring 1 and Second-Type ring 41 on the first adjacent type ring 31, the covering
Component includes envelope 1, metallic framework 1, lip end 1, tightens up spring 1, auxiliary section 1 and dustproof part
56, the metallic framework 1 is arranged in envelope 1, and the auxiliary section 1 is arranged at shell 1 and envelope 1
Between, the lip end 1, dustproof part 56 are arranged at the side of the adjacent shafts 2 of envelope 1, and described tighten up spring one
54 are arranged on lip end 1；The interior sealing assembly includes interior capsule 2 61, metallic framework 2 62, lip end 2 63, tightened up
Spring 2 64, auxiliary section 2 65, the metallic framework 2 52 are arranged in interior capsule 2 61, and the auxiliary section 2 65 is arranged at
Between shell 1 and interior capsule 2 61, the lip end 2 63 is arranged at the side of the interior adjacent shafts 2 of capsule 2 61, and described receives
Tight spring 2 64 is arranged on lip end 2 63.The shell 1 is provided with the interface 11 for injecting liquid sealant.It is described to match somebody with somebody
Conjunction portion 1, auxiliary section 2 65 are rubber seal.The sealing ring 1 of the first T-shaped ring 31, the number of sealing ring 2 42
For 2；Also include cloud system, signal projector and pressure sensor, the pressure sensor is arranged in the region of liquid labyrinth,
And the pressure that the pressure sensor is measured is uploaded in cloud system by signal projector, so facilitate transferring and transporting for data
With.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of blade profile liquid labyrinth seal, it is characterised in that：Including shell (1), rotating shaft (2), the first type ring (31), second
Type ring (41), outer sealing assembly and interior sealing assembly, the interior sealing assembly, outer sealing assembly are arranged in shell (1) from inside to outside, and
The interior sealing assembly, outer sealing assembly are located between rotating shaft (2) and shell (1)；The shell (1), rotating shaft (2), covering group
Liquid labyrinth region is formed between part and interior sealing assembly, the Second-Type ring (41) is fixedly mounted in rotating shaft (2), and described
First type ring (31) is fixedly mounted on shell (1), and the first type ring (31) includes the first blade profile ring (32), first blade profile
Ring (32) is arranged in pairs on shell (1), and the Second-Type ring (41) includes the second blade profile ring and cup type ring, the Second-Type
Ring (41) is arranged between every the first blade profile of team ring (32), and the cup type ring is arranged at adjacent two teams' the first blade profile ring (32)
Between；Liquid labyrinth area filling has liquid sealant so that the sealing ring one (32) on the first adjacent type ring (31)
With sealing ring two (42) the formation glue sealing of Second-Type ring (41), the outer sealing assembly includes envelope one (51), metallic framework
One (52), lip end one (53), tighten up spring one (54), auxiliary section one (55) and dustproof part (56), the metallic framework one
(52) it is arranged in envelope one (51), and the auxiliary section one (55) is arranged between shell (1) and envelope one (51), institute
State lip end one (53), dustproof part (56) and be arranged at the side of envelope one (51) adjacent shafts (2), and described tighten up spring one
(54) it is arranged on lip end one (53)；The interior sealing assembly includes interior capsule two (61), metallic framework two (62), lip end two
(63) spring two (64), auxiliary section two (65), are tightened up, the metallic framework two (52) is arranged in interior capsule two (61), and institute
State auxiliary section two (65) to be arranged between shell (1) and interior capsule two (61), the lip end two (63) is arranged at interior capsule two
(61) side of adjacent shafts (2), and the spring two (64) of tightening up is arranged on lip end two (63)；Also include cloud system,
Signal projector and pressure sensor, the pressure sensor are arranged in the region of liquid labyrinth, and the pressure sensor is surveyed
The pressure obtained is uploaded in cloud system by signal projector.
2. blade profile liquid labyrinth seal according to claim 1, it is characterised in that：The shell (1) is provided with for noting
Enter the interface (11) of liquid sealant.
3. blade profile liquid labyrinth seal according to claim 1, it is characterised in that：The auxiliary section one (55), auxiliary section
Two (65) are rubber seal.
4. blade profile liquid labyrinth seal according to claim 1, it is characterised in that：The sealing of the first T-shaped ring (31)
Ring one (32), the number of sealing ring two (42) are 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405375.XA CN107152532B (en) | 2017-05-31 | 2017-05-31 | A kind of blade profile liquid labyrinth seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405375.XA CN107152532B (en) | 2017-05-31 | 2017-05-31 | A kind of blade profile liquid labyrinth seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107152532A true CN107152532A (en) | 2017-09-12 |
| CN107152532B CN107152532B (en) | 2019-03-12 |
Family
ID=59794947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710405375.XA Active CN107152532B (en) | 2017-05-31 | 2017-05-31 | A kind of blade profile liquid labyrinth seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107152532B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3880434A (en) * | 1973-01-29 | 1975-04-29 | Commissariat Energie Atomique | Sealing device for shaft of machines |
| CN86201567U (en) * | 1986-03-17 | 1987-08-26 | 李建新 | Double direction oil-immersed water proof seal |
| US5014998A (en) * | 1988-03-28 | 1991-05-14 | United Conveyor Corporation | Shaft seal |
| CN101245856A (en) * | 2008-03-27 | 2008-08-20 | 济南东方天明机械有限公司 | Bearing sealing device |
| CN104455465A (en) * | 2014-12-12 | 2015-03-25 | 北京凯特破碎机有限公司 | Composite labyrinth sealing device |
-
2017
- 2017-05-31 CN CN201710405375.XA patent/CN107152532B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3880434A (en) * | 1973-01-29 | 1975-04-29 | Commissariat Energie Atomique | Sealing device for shaft of machines |
| CN86201567U (en) * | 1986-03-17 | 1987-08-26 | 李建新 | Double direction oil-immersed water proof seal |
| US5014998A (en) * | 1988-03-28 | 1991-05-14 | United Conveyor Corporation | Shaft seal |
| CN101245856A (en) * | 2008-03-27 | 2008-08-20 | 济南东方天明机械有限公司 | Bearing sealing device |
| CN104455465A (en) * | 2014-12-12 | 2015-03-25 | 北京凯特破碎机有限公司 | Composite labyrinth sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107152532B (en) | 2019-03-12 |
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