CN107191598A - A kind of T-shaped liquid labyrinth seal - Google Patents
A kind of T-shaped liquid labyrinth seal Download PDFInfo
- Publication number
- CN107191598A CN107191598A CN201710400823.7A CN201710400823A CN107191598A CN 107191598 A CN107191598 A CN 107191598A CN 201710400823 A CN201710400823 A CN 201710400823A CN 107191598 A CN107191598 A CN 107191598A
- Authority
- CN
- China
- Prior art keywords
- sealing assembly
- ring
- shell
- interior
- shaped 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
- 239000007788 liquid Substances 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 78
- 239000000565 sealant Substances 0.000 claims abstract description 20
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims abstract description 3
- 239000002775 capsule Substances 0.000 claims description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- F16J15/16—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
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
-
- 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
- F16J15/4472—Labyrinth packings with axial path
- F16J15/4474—Pre-assembled packings
Abstract
The invention discloses a kind of T-shaped 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
T-shaped liquid labyrinth seal.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of T-shaped liquid labyrinth seal, including shell (1), rotating shaft (2), the first T-shaped ring (31), the second T-shaped 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
The interior sealing assembly, outer sealing assembly are located between rotating shaft (2) and shell (1)；The shell (1), rotating shaft (2), outer sealing assembly with
And liquid labyrinth region is formed between interior sealing assembly, the second T-shaped ring (41) is fixedly mounted in rotating shaft (2), and described the
One T-shaped ring (31) is fixedly mounted on the T prefix phases between shell (1), and the first T-shaped ring (31) and the second T-shaped ring (41)
Mutually occlusion；Liquid labyrinth area filling has liquid sealant so that the sealing ring one on the first adjacent T-shaped ring (31)
(32) with sealing ring two (42) the formation glue sealing of the second T-shaped ring (41), the outer sealing assembly includes envelope one (51), metal
Skeleton one (52), lip end one (53), tighten up spring one (54), auxiliary section one (55) and dustproof part (56), the metal bone
Frame one (52) is arranged in envelope one (51), and the auxiliary section one (55) be arranged at shell (1) and envelope one (51) it
Between, the lip end one (53), dustproof part (56) are arranged at the side of envelope one (51) adjacent shafts (2), and described tighten up
Spring one (54) 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 at interior capsule two (61)
It is interior, and the auxiliary section two (65) is arranged between shell (1) and interior capsule two (61), the lip end two (63) is arranged at interior
The side of capsule two (61) adjacent shafts (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 by shell (1), rotating shaft (2), outer sealing assembly and interior sealing assembly formation liquid labyrinth region, will, the
One T-shaped ring (31), the second T-shaped ring (41) are arranged in the region of liquid labyrinth, liquid are then injected in the region of liquid labyrinth close
Sealing, when the spindle is rotated, because, the first T-shaped ring (31), the second T-shaped ring (41) are mutually twisted, sealing ring one (32) and sealing
The faying face of ring two (42) forms a kind of continuous film of the uniform stabilization with viscosity, viscoplasticity or strippable property, at this
In invention, by forming labyrinth channel for the first T-shaped ring (31), the second T-shaped ring (41), when being sealed, first pass around interior
Sealing assembly stops the ejection of air-flow, and gas flow is reduced, and a part of air-flow is blocked on the outside of interior sealing assembly, and another portion
Divide air-flow to enter in the region of liquid labyrinth, under the effect of the pressure, liquid sealant movement is push, due to the=the first T-shaped ring
(31), spacing is small (generally below 0.1mm) between the second T-shaped ring (41), and gas is difficult to promote liquid sealant, with pressure
Increase, gas gradually promotes liquid sealant, and liquid sealant is walked in the presence of air-flow along labyrinth passage, produces fan
Palace effect, due to the effect of labyrinth effect, liquid sealant is heated so that the viscosity and elasticity of liquid sealant are increased
By force, the enhancing of the viscosity and elasticity of liquid sealant so that sealing ring one (32) and the faying face formation of sealing ring two (42)
Film toughness is stronger, and air-flow is more difficult to be passed through, close due to the rotation of rotating shaft when air-flow workmanship, which expends energy, breaks through film
Seal ring one (32) is mutually rotated with sealing ring two (42), forms new sealing film, and this process continues with the rotation of rotating shaft, when
Air-flow finally goes out liquid labyrinth region, when reaching outer sealing assembly, because air-flow drives liquid sealant flowing in liquid labyrinth,
And the interaction between sealing ring one (32) and sealing ring two (42) so that gas is formed between fraction and liquid sealant
Bubble stream, and remaining flowed energy is further reduced, due to and liquid sealant forms HTHP in the presence of air-flow
Liquid sealant, the outside sealing assembly of liquid sealant of HTHP and the movement of interior sealing assembly, are depressurized, so, in rotating shaft
Drive under, the contact surface between the lip end one (53) of outer sealing assembly and rotating shaft (2) also forms diaphragm seal, interior sealing assembly
Contact surface between lip end two (63) and rotating shaft (2) also forms diaphragm seal, arrives to outer sealing assembly air-flow in lip end one
(53) under sealing film effect, energy is further reduced, and now due to interior sealing assembly lip end two (63) and rotating shaft (2) it
Between contact surface also form diaphragm seal so that the gas entered in the region of liquid labyrinth is more difficult, when entering liquid
Gas in the region of labyrinth is more, and liquid sealant work is more, in the environment of high pressure, and more preferably, viscosity is more for its activity
Excellent, internal gas is more difficult to flee from, and then can effectively prevent air-flow from being exchanged with extraneous.In addition, using the first T-shaped ring
(31), the second T-shaped ring (41) is arranged at labyrinth channel, adds the contact between the first T-shaped ring (31), the second T-shaped ring (41)
Face, and then add the amount for the film that liquid labyrinth area is formed so that air-flow is more difficult to break through the sealing of seal, sealing effect
It is really good.
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 T-shaped liquid labyrinth seal, as shown in figure 1, including shell 1, rotating shaft 2, the first T-shaped ring 31, the second T-shaped 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 T-shaped ring 41 is fixedly mounted in rotating shaft 2, and the first T-shaped ring 31 is fixedly mounted
T prefixs between shell 1, and the T-shaped ring 41 of the first T-shaped ring 31 and second are mutually twisted；Liquid labyrinth region is filled out
Filled with liquid sealant so that the shape of sealing ring 2 42 of the T-shaped ring 41 of sealing ring one 32 and second on the first adjacent T-shaped ring 31
Plastic seal, the outer sealing assembly include envelope 1, metallic framework 1, lip end 1, tighten up spring 1, cooperation
Portion 1 and dustproof part 56, the metallic framework 1 are arranged in envelope 1, and the auxiliary section 1 is arranged at
Between shell 1 and envelope 1, the lip end 1, dustproof part 56 are arranged at the side of the adjacent shafts 2 of envelope 1,
And the spring 1 of tightening up is arranged on lip end 1；The interior sealing assembly include interior capsule 2 61, metallic framework 2 62,
Lip end 2 63, spring 2 64, auxiliary section 2 65 are tightened up, the metallic framework 2 52 is arranged in interior capsule 2 61, and described
Auxiliary section 2 65 is arranged between shell 1 and interior capsule 2 61, and the lip end 2 63 is arranged at the interior adjacent shafts 2 of capsule 2 61
Side, and the spring 2 64 of tightening up is arranged on lip end 2 63.The shell 1 is provided with for injecting liquid sealant
Interface 11.The auxiliary section 1, auxiliary section 2 65 are rubber seal.It is the sealing ring 1 of the first T-shaped ring 31, close
The number of seal ring 2 42 is 2.
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 T-shaped liquid labyrinth seal, it is characterised in that：Including shell (1), rotating shaft (2), the first T-shaped ring (31), second
T-shaped 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
Liquid labyrinth region is formed between component and interior sealing assembly, the second T-shaped ring (41) is fixedly mounted in rotating shaft (2), and
The first T-shaped ring (31) is fixedly mounted on the T between shell (1), and the first T-shaped ring (31) and the second T-shaped ring (41)
Prefix is mutually twisted；Liquid labyrinth area filling has liquid sealant so that the sealing on the first adjacent T-shaped ring (31)
Sealing ring two (42) the formation glue sealing of ring one (32) and the second T-shaped ring (41), the outer sealing assembly include 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 gold
Category skeleton one (52) is arranged in envelope one (51), and the auxiliary section one (55) is arranged at shell (1) and envelope one
(51) between, the lip end one (53), dustproof part (56) are arranged at the side of envelope one (51) adjacent shafts (2), and institute
State and tighten up spring one (54) and be arranged on lip end one (53)；The interior sealing assembly includes interior capsule two (61), metallic framework two
(62), lip end two (63), tighten up spring two (64), auxiliary section two (65), the metallic framework two (52) is arranged at interior capsule
In two (61), and the auxiliary section two (65) is arranged between shell (1) and interior capsule two (61), and the lip end two (63) sets
The side of interior (61) adjacent shafts (2) of capsule two is placed in, and the spring two (64) of tightening up is arranged on lip end two (63).
2. T-shaped liquid labyrinth seal according to claim 1, it is characterised in that：The shell (1) is provided with for injecting
The interface (11) of liquid sealant.
3. T-shaped liquid labyrinth seal according to claim 1, it is characterised in that：The auxiliary section one (55), auxiliary section two
(65) it is rubber seal.
4. T-shaped liquid labyrinth seal according to claim 1, it is characterised in that：The sealing ring of the first T-shaped ring (31)
One (32), the number of sealing ring two (42) are 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400823.7A CN107191598B (en) | 2017-05-31 | 2017-05-31 | A kind of T-type liquid labyrinth seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400823.7A CN107191598B (en) | 2017-05-31 | 2017-05-31 | A kind of T-type liquid labyrinth seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107191598A true CN107191598A (en) | 2017-09-22 |
| CN107191598B CN107191598B (en) | 2019-02-26 |
Family
ID=59876842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710400823.7A Active CN107191598B (en) | 2017-05-31 | 2017-05-31 | A kind of T-type liquid labyrinth seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191598B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3012916A1 (en) * | 1980-04-02 | 1981-10-08 | Eksperimental'nyj naučno-issledovatel'skij institut metallorežuščich stankov | Labyrinth seal for rotary shaft - has set of ring plates rigidly fixed to shaft and set fixed to stationary sleeve which has through passage passing through it |
| CN2318186Y (en) * | 1997-10-08 | 1999-05-12 | 白德山 | UHMW-PE plastic bearing idler for mine belt conveyor |
| CN200975488Y (en) * | 2006-11-16 | 2007-11-14 | 江苏科行环境工程技术有限公司 | Sealing device used between horizontal rolls milling dynamic and static revolving part |
| CN203189736U (en) * | 2013-03-18 | 2013-09-11 | 南车戚墅堰机车车辆工艺研究所有限公司 | Output shaft sealing device |
| CN103899758A (en) * | 2014-03-04 | 2014-07-02 | 哈尔滨工程大学 | T-shaped staggered-type labyrinth seal capable of eliminating rotor exciting force |
-
2017
- 2017-05-31 CN CN201710400823.7A patent/CN107191598B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3012916A1 (en) * | 1980-04-02 | 1981-10-08 | Eksperimental'nyj naučno-issledovatel'skij institut metallorežuščich stankov | Labyrinth seal for rotary shaft - has set of ring plates rigidly fixed to shaft and set fixed to stationary sleeve which has through passage passing through it |
| CN2318186Y (en) * | 1997-10-08 | 1999-05-12 | 白德山 | UHMW-PE plastic bearing idler for mine belt conveyor |
| CN200975488Y (en) * | 2006-11-16 | 2007-11-14 | 江苏科行环境工程技术有限公司 | Sealing device used between horizontal rolls milling dynamic and static revolving part |
| CN203189736U (en) * | 2013-03-18 | 2013-09-11 | 南车戚墅堰机车车辆工艺研究所有限公司 | Output shaft sealing device |
| CN103899758A (en) * | 2014-03-04 | 2014-07-02 | 哈尔滨工程大学 | T-shaped staggered-type labyrinth seal capable of eliminating rotor exciting force |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107191598B (en) | 2019-02-26 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A T-shaped liquid labyrinth seal Effective date of registration: 20231103 Granted publication date: 20190226 Pledgee: Bank of Jiangsu Limited by Share Ltd. Zhenjiang branch Pledgor: JIANGSU HOK SEAL MATERIAL Co.,Ltd. Registration number: Y2023980063418 |