CN107035869A - A kind of liquid labyrinth seal - Google Patents
A kind of liquid labyrinth seal Download PDFInfo
- Publication number
- CN107035869A CN107035869A CN201710400782.1A CN201710400782A CN107035869A CN 107035869 A CN107035869 A CN 107035869A CN 201710400782 A CN201710400782 A CN 201710400782A CN 107035869 A CN107035869 A CN 107035869A
- Authority
- CN
- China
- Prior art keywords
- sealing assembly
- interior
- lip end
- shell
- 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
- F16J15/4472—Labyrinth packings with axial 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
- F16J15/40—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
- F16J15/4476—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 liquid labyrinth seal, including shell (1), rotating shaft (2), first F types ring (31), 2nd F types ring (42), 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
Liquid labyrinth seal.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of liquid labyrinth seal, including it is shell (1), rotating shaft (2), the first F types ring (31), the 2nd F types ring (42), 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 envelope
Liquid labyrinth region is formed between component, the 2nd F types ring (42) is fixedly mounted in rotating shaft (2), and the first F type rings
(31) shell (1) is fixedly mounted on, the first F types ring (31) is mutually twisted with the 2nd F types ring (42), liquid labyrinth area
Domain is filled with liquid sealant so that adjacent sealing ring one (32) and sealing ring two (42) formation glue sealing, the covering group
Part include envelope one (51), metallic framework one (52), lip end one (53), tighten up spring one (54), auxiliary section one (55) with
And dustproof part (56), the metallic framework one (52) is arranged in envelope one (51), and the auxiliary section one (55) is arranged at
Between shell (1) and envelope one (51), the lip end one (53), dustproof part (56) are arranged at adjacent turn of envelope one (51)
The side of axle (2), and the spring one (54) of tightening up is arranged on lip end one (53)；The interior sealing assembly includes interior capsule two
(61), metallic framework two (62), lip end two (631), lip end three (632), tighten up spring two (641), tighten up spring three
(642), auxiliary section two (65), the metallic framework two (52) is 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 (631) is arranged at interior (61) adjacent shafts of capsule two
(2) side, and the spring two (641) of tightening up is arranged on lip end two (63), the lip end three (632) is arranged at interior
The side of capsule two (61) adjacent shafts (2), and the spring three (642) of tightening up is arranged on lip end two (63), and it is described
Lip end three (632), lip end two (631) are axially arranged along rotating shaft.
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.
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
F types ring (31), the 2nd F types ring (42) are arranged in the region of liquid labyrinth, then inject hydraulic seal in the region of liquid labyrinth
Glue, when the spindle is rotated, because sealing ring one (32) is the 2nd F types ring (42), sealing ring two (42) is the first F types ring (31),
The faying face of sealing ring one (32) and sealing ring two (42) forms a kind of uniform stabilization with viscosity, viscoplasticity or strippable property
Continuous film, in the present invention, by for the first F types ring (31), the 2nd F types ring (42) formation labyrinth channel, work as progress
During sealing, the ejection that interior sealing assembly stops air-flow is first passed around, gas flow is reduced, and a part of air-flow is blocked in interior envelope
On the outside of component, and another part air-flow is entered in the region of liquid labyrinth, under the effect of the pressure, pushes liquid sealant shifting
Dynamic, because spacing is small (generally below 0.1mm) between the first F types ring (31), the 2nd F types ring (42), gas is difficult to promote liquid
Fluid sealant, with the increase of pressure, gas gradually promotes liquid sealant, liquid sealant in the presence of air-flow, along be fascinated
Palace path walking, produces labyrinth effect, due to the effect of labyrinth effect, liquid sealant is heated so that liquid sealant
Viscosity and elasticity are strengthened, the enhancing of the viscosity and elasticity of liquid sealant so that sealing ring one (32) and sealing ring two
(42) film toughness of faying face formation is stronger, and air-flow 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) is mutually rotated with sealing ring two (42), forms new sealing film, this process with
The rotation of rotating shaft continues, when air-flow finally goes out liquid labyrinth region, reaches outer sealing assembly, because air-flow is in liquid labyrinth band
Dynamic liquid sealant flowing, and the interaction between sealing ring one (32) and sealing ring two (42) so that fraction and liquid
Bubble stream is formed between body fluid sealant, and remaining flowed energy is further reduced, due to and liquid sealant air-flow work
Under, the liquid sealant of HTHP, the outside sealing assembly of liquid sealant of HTHP and the movement of interior sealing assembly are formed, is entered
Row decompression, so, under the drive of rotating shaft, the contact surface between the lip end one (53) of outer sealing assembly and rotating shaft (2) is also formed
Diaphragm seal, the contact surface between the lip end two (63) of interior sealing assembly and rotating shaft (2) also forms diaphragm seal, arrives to covering
Component air-flow is under the effect of lip end one (53) sealing film, and energy is further reduced, and now due to the lip end of interior sealing assembly
Contact surface between portion two (63) and rotating shaft (2) also forms diaphragm seal so that the gas entered in the region of liquid labyrinth is more
Plus it is difficult, when entering, the gas in the region of liquid labyrinth is more, and liquid sealant work is more, in the environment of high pressure,
More preferably, viscosity is more excellent, and internal gas is more difficult to flee from for its activity, and then can effectively prevent air-flow from being exchanged with extraneous.Separately
Outside, labyrinth channel is arranged at using the first F types ring (31), the 2nd F types ring (42), adds the first F types ring (31), the 2nd F types
Contact surface between ring (42), and then add the amount for the film that liquid labyrinth area is formed so that it is close that air-flow is more difficult to breakthrough
The sealing of sealing, 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 liquid labyrinth seal, as shown in figure 1, including shell 1, rotating shaft 2, the first F types ring 31, the 2nd F types ring 42,
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；Between the shell 1, rotating shaft 2, outer sealing assembly and interior sealing assembly
Liquid labyrinth region is formed, the 2nd F types ring 42 is fixedly mounted in rotating shaft 2, and the first F types ring 31 is fixedly mounted on
Shell 1, the first F types ring 31 is mutually twisted with the 2nd F types ring 42, and liquid labyrinth area filling has liquid sealant,
So that adjacent sealing ring 1 and the formation glue sealing of sealing ring 2 42, the outer sealing assembly include envelope 1, metal bone
Frame 1, lip end 1, spring 1, auxiliary section 1 and dustproof part 56 are tightened up, the metallic framework 1 is arranged at
In envelope 1, and the auxiliary section 1 is arranged between shell 1 and envelope 1, the lip end 1, dust-proof
Portion 56 is 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；It is described
Interior sealing assembly include interior capsule 2 61, metallic framework 2 62, lip end 2 631, lip end 3 632, tighten up spring 2 641, receipts
Tight spring 3 642, auxiliary section 2 65, the metallic framework 2 52 is arranged in interior capsule 2 61, and the auxiliary section 2 65 is set
It is placed between shell 1 and interior capsule 2 61, the lip end 2 631 is arranged at the side of the interior adjacent shafts 2 of capsule 2 61, and institute
State and tighten up spring 2 641 and be arranged on lip end 2 63, the lip end 3 632 is arranged at the interior adjacent shafts 2 of capsule 2 61
Side, and the spring 3 642 of tightening up is arranged on lip end 2 63, and the lip end 3 632, the edge of lip end 2 631 turn
Axle is axially arranged.The shell 1 is provided with the interface 11 for injecting liquid sealant.The auxiliary section 1, auxiliary section two
65 be rubber seal.
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 (3)
1. a kind of liquid labyrinth seal, it is characterised in that：Including shell (1), rotating shaft (2), the first F types ring (31), the 2nd F types
Ring (42), outer sealing assembly and interior sealing assembly, the interior sealing assembly, outer sealing assembly are arranged in shell (1) from inside to outside, and institute
The interior sealing assembly, outer sealing assembly is stated to be located between rotating shaft (2) and shell (1)；The shell (1), rotating shaft (2), outer sealing assembly
And liquid labyrinth region is formed between interior sealing assembly, the 2nd F types ring (42) is fixedly mounted in rotating shaft (2), and described
First F types ring (31) is fixedly mounted on shell (1), and the first F types ring (31) is mutually twisted with the 2nd F types ring (42), described
Liquid labyrinth area filling has liquid sealant so that adjacent sealing ring one (32) and sealing ring two (42) formation glue sealing,
The outer sealing assembly include envelope one (51), metallic framework one (52), lip end one (53), tighten up spring one (54), cooperation
Portion one (55) and dustproof part (56), the metallic framework one (52) are arranged in envelope one (51), and the auxiliary section one
(55) it is arranged between shell (1) and envelope one (51), the lip end one (53), dustproof part (56) are arranged at envelope one
(51) side of adjacent shafts (2), and the spring one (54) of tightening up is arranged on lip end one (53)；The interior sealing assembly bag
Include interior capsule two (61), metallic framework two (62), lip end two (631), lip end three (632), tighten up spring two (641), receipts
Tight spring three (642), auxiliary section two (65), the metallic framework two (52) are arranged in interior capsule two (61), and the cooperation
Portion two (65) is arranged between shell (1) and interior capsule two (61), and the lip end two (631) is arranged at interior (61) phase of capsule two
The side of adjacent rotating shaft (2), and the spring two (641) of tightening up is arranged on lip end two (63), the lip end three (632) sets
The side of interior (61) adjacent shafts (2) of capsule two is placed in, and the spring three (642) of tightening up is arranged on lip end two (63),
And the lip end three (632), lip end two (631) are axially arranged along rotating shaft.
2. liquid labyrinth seal according to claim 1, it is characterised in that：The shell (1) is provided with for injecting liquid
The interface (11) of body fluid sealant.
3. 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400782.1A CN107035869B (en) | 2017-05-31 | 2017-05-31 | A kind of liquid labyrinth seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400782.1A CN107035869B (en) | 2017-05-31 | 2017-05-31 | A kind of liquid labyrinth seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107035869A true CN107035869A (en) | 2017-08-11 |
| CN107035869B CN107035869B (en) | 2019-10-18 |
Family
ID=59540744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710400782.1A Active CN107035869B (en) | 2017-05-31 | 2017-05-31 | A kind of liquid labyrinth seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107035869B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869554A (en) * | 2018-08-31 | 2018-11-23 | 无锡三立轴承股份有限公司 | Bearing seal |
| CN111810484A (en) * | 2020-07-02 | 2020-10-23 | 江苏海川卓越密封材料有限公司 | Leak-proof sealing piece for hydraulic cylinder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB444814A (en) * | 1933-10-04 | 1936-03-26 | Escher Wyss Maschf Ag | Labyrinth packing for rotating parts of machinery, particularly parts of steam and gas turbines |
| US4304409A (en) * | 1979-06-11 | 1981-12-08 | Inpro, Inc. | Sealing assembly |
| EP0043918A1 (en) * | 1980-07-16 | 1982-01-20 | Herbert HÄNCHEN KG | Low friction sealing |
| US4533148A (en) * | 1984-10-04 | 1985-08-06 | Lindahl Lemoyne | Sealing ring assembly for use in pulp refining equipment |
| US4743034A (en) * | 1987-03-27 | 1988-05-10 | Durametallic Corporation | Labyrinth bearing protector seal |
| CN1340668A (en) * | 2000-08-31 | 2002-03-20 | 阿特拉斯科普科康普特克公司 | Liquid sealing device |
| CN1688826A (en) * | 2002-10-03 | 2005-10-26 | 奥依列斯工业株式会社 | Sliding bearing |
-
2017
- 2017-05-31 CN CN201710400782.1A patent/CN107035869B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB444814A (en) * | 1933-10-04 | 1936-03-26 | Escher Wyss Maschf Ag | Labyrinth packing for rotating parts of machinery, particularly parts of steam and gas turbines |
| US4304409A (en) * | 1979-06-11 | 1981-12-08 | Inpro, Inc. | Sealing assembly |
| EP0043918A1 (en) * | 1980-07-16 | 1982-01-20 | Herbert HÄNCHEN KG | Low friction sealing |
| US4533148A (en) * | 1984-10-04 | 1985-08-06 | Lindahl Lemoyne | Sealing ring assembly for use in pulp refining equipment |
| US4743034A (en) * | 1987-03-27 | 1988-05-10 | Durametallic Corporation | Labyrinth bearing protector seal |
| CN1340668A (en) * | 2000-08-31 | 2002-03-20 | 阿特拉斯科普科康普特克公司 | Liquid sealing device |
| CN1688826A (en) * | 2002-10-03 | 2005-10-26 | 奥依列斯工业株式会社 | Sliding bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869554A (en) * | 2018-08-31 | 2018-11-23 | 无锡三立轴承股份有限公司 | Bearing seal |
| CN111810484A (en) * | 2020-07-02 | 2020-10-23 | 江苏海川卓越密封材料有限公司 | Leak-proof sealing piece for hydraulic cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107035869B (en) | 2019-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107035869A (en) | A kind of liquid labyrinth seal | |
| CN107152530A (en) | A kind of V-type liquid labyrinth seal | |
| CN107420545A (en) | A kind of labyrinth seal | |
| CN106989179A (en) | A kind of F types liquid labyrinth seal | |
| CN107191598A (en) | A kind of T-shaped liquid labyrinth seal | |
| CN107084246A (en) | A kind of two-side sealing part | |
| CN106195278A (en) | A kind of high speed cold blower fan magnetic fluid seal device | |
| CN107152531A (en) | A kind of stepped liquid labyrinth seal | |
| CN107084247A (en) | A kind of seal | |
| CN202417617U (en) | Radial labyrinth gland of turbine | |
| CN107061746A (en) | A kind of sealing device | |
| CN107061747A (en) | A kind of L-type liquid labyrinth seal | |
| CN107152532A (en) | A kind of blade profile liquid labyrinth seal | |
| CN107091329B (en) | A kind of non-font liquid labyrinth seal | |
| CN209180014U (en) | A kind of compressor drum bearing isolating seal structure | |
| CN204258511U (en) | The hermetically-sealed construction of sliding bearing | |
| CN207420953U (en) | A kind of impeller back seal structure | |
| CN206290708U (en) | It is directed to the two-lid sealing structure of Vehicle loaded pump | |
| CN206957975U (en) | A kind of sealing structure applied to water pump | |
| CN205806482U (en) | Combination hydraulic rotary shaft oil seal | |
| CN206368815U (en) | Roots blower combined sealing structure | |
| CN209278203U (en) | The gas sealing mechanism of main shaft in a kind of numerical control blower | |
| CN205350364U (en) | Embedded type honeycomb seal structure | |
| CN204573043U (en) | A kind of combined type ring gear seal arrangement | |
| CN207974770U (en) | Cone bit metal rubber shaft bearing sealing ring and its rock bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |