CN102565977B - Multi-core fiber component is used in blast impulse test - Google Patents
Multi-core fiber component is used in blast impulse test Download PDFInfo
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- CN102565977B CN102565977B CN201210029879.3A CN201210029879A CN102565977B CN 102565977 B CN102565977 B CN 102565977B CN 201210029879 A CN201210029879 A CN 201210029879A CN 102565977 B CN102565977 B CN 102565977B
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Abstract
Multi-core fiber component is used in blast impulse test, belongs to technical field of optical test.The present invention includes shell and the baffle plate, reinforcing plate and the pressure-bearing baffle plate that are arranged at enclosure；The outer wall of shell is provided with annular boss；First annular groove is provided with the middle part of the inner chamber of shell；The inner chamber of shell is provided at both ends with the second annular groove and the 3rd annular groove；It is slidably matched in one end outer wall of the 3rd annular groove of shell with the inwall formation of screw thread gland, the outer wall of screw thread gland is provided with screw thread, for coordinating with window of container formation screw thread；Pressure ring is provided between screw thread gland and annular boss；Baffle plate, reinforcing plate and pressure-bearing baffle plate setting have corresponding through hole, and optical patchcord is passed through from through hole.The present invention while meeting test request, can effectively prevent the leakage of toxic and harmful gas, tester and surrounding environment is effectively protected under blast load.
Description
Technical field
The invention belongs to technical field of optical test, and in particular to high leakproofness multi-core fiber under a kind of Explosive Shock Loading
Seal assembly, the sealing toxic and harmful gas of Shock wave physics, detonation physics that can be applied in various scientific experimentations research etc.
Optic test experiment.
Background technology
In Shock wave physics, detonation physics experiment, the features such as having response fast not by electromagnetic interference due to light probe,
Shock velocity and the velocity of sound and measurement in measurement flyer velocity, film flying planarization, sample are had been used for both at home and abroad flies layer and detonation
The waveform of ripple at a time etc..Because many materials can produce hypertoxic gas in explosion test, therefore experiment is needed close
Carry out, experimental provision is placed in container, Transmission Fibers are drawn by window of container, be so accomplished by pair in the explosive container of envelope
Transmission Fibers are sealed, by investigation both at home and abroad on multifiber cable, the report of multi-core connector, but it is close to carry out Detonation Experiments
The high leakproofness multi-core fiber seal assembly of envelope toxic and harmful gas gas explosion-proof impact is not reported but.
The content of the invention
The technical problems to be solved by the invention are to provide high leakproofness multi-core fiber under a kind of Explosive Shock Loading and sealed
Component, under Explosive Shock Loading, while meeting optic test requirement, effectively prevents the leakage of toxic and harmful gas, makes
Tester and surrounding environment are effectively protected.
The technical scheme that the present invention solves the technical problem use is that multi-core fiber component is used in blast impulse test, its
It is characterised by, including shell and the baffle plate, reinforcing plate and the pressure-bearing baffle plate that are arranged at enclosure；The outer wall of shell is provided with annular
Boss；First annular groove is provided with the middle part of the inner chamber of shell, for fixing reinforcing plate；The inner chamber of shell is provided at both ends with
Second ring groove and the 3rd annular groove, are respectively used to fixed dam and pressure-bearing baffle plate；The one of the 3rd annular groove of shell
The inwall of end outer wall and screw thread gland, which is formed, to be slidably matched, and the outer wall of screw thread gland is provided with screw thread, for window of container shape
Coordinate into screw thread；Pressure ring is provided between screw thread gland and annular boss；Baffle plate, reinforcing plate and pressure-bearing baffle plate setting have corresponding
Through hole, optical patchcord is passed through from through hole；The center section of the optical patchcord is naked fibre, in the part through reinforcing plate with shield
Set, sheath and covering are carried in the part through baffle plate and pressure-bearing baffle plate.
Further, ring-type is provided with colloid fixed groove between first annular groove and the second annular groove,
Ring-type is provided with colloid fixed groove between first annular groove and the 3rd annular groove.On annular boss, ring-type is set
There is O-ring seal fixing groove, for fixedly secured O-ring seal.The O-ring seal fixing groove at least two.The pressure
Ring is the pressure ring with boss.Epoxy sealing glue is filled with the inner chamber of shell.The side of reinforcing plate is provided with fixing glue, used
In fixed optical fiber and reinforcing plate.Sealing gasket is provided with the inside of boss.Cartridge is provided at both ends with shell.In annular
The side of boss, is provided with U-shaped groove.
It is efficient sealed that the present invention uses repeatedly sealed mode to realize, and has reached under conditions of 14MPa blast loads,
Leak rate is less than 6 × 10-11Pa·m3/ s, high leakproofness multi-core fiber component, throughput be more than 90%.The sealing of the present invention
Property multi-core fiber component, the multicore structure of use, compact conformation meets the requirement of miniaturization, under blast load, meet survey
While examination is required, the leakage of toxic and harmful gas can be effectively prevented, tester and surrounding environment is all obtained effectively
Protection, tool is with being widely applied value in all kinds of scientific experimentations and technological development.
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Brief description of the drawings
Fig. 1 high leakproofness multi-core fiber modular construction schematic diagrames.
Fig. 2 is shell section structure chart of the invention.
Fig. 3 is optical patchcord sectional structure chart of the present invention.
Fig. 4 is baffle plate of the present invention, pressure-bearing baffle arrangement schematic diagram.
Fig. 5 strengthens plate structure schematic diagram for the present invention.
Fig. 6 is the new screw thread gland sectional structure chart of this practicality.
Fig. 7 is the structural representation of pressure ring of the present invention.
In figure, the pressure-bearing baffle plate 8. of 1. baffle plate, 2. shell, 3. reinforcing plate, 4. optical patchcord, 5. pressure ring, 6. screw thread gland 7.
The O-shaped sealing of 12. first O-ring seal of the encapsulatings of epoxy sealing glue A 9. cylinder 10. epoxy sealing glue B, 11. fixing glues 13. second
The joint 30. of 14. sealing gasket, 15. epoxy sealing glue C, 16. window of container, 20. naked fibre, 21. sheaths, 22. covering 23. is enclosed to lead to
The boss of 31. through hole A 40.U types grooves of hole B 50.
Embodiment
Referring to Fig. 1-7.
High leakproofness multi-core fiber seal assembly under the Explosive Shock Loading of the present invention, including shell 2, reinforcing plate 3, gear
The annular of fixed reinforcing plate 3 is provided with the middle part of plate 1, optical patchcord 4, pressure-bearing baffle plate 7, pressure ring 5, screw thread gland 6, the inner chamber of shell 2
Groove, the inner chamber two ends of shell 2 are provided with the annular groove for placing baffle plate 1 and pressure-bearing baffle plate 7, and inner chamber is additionally provided with four circle grooves；Optical fiber
Wire jumper is special optical patchcord：Middle one section is naked fibre, and optical fiber is a diameter of μm of level of single-mode fiber or multimode fibre, Ling Yiduan
For the optical fiber of the sheath with a diameter of 1mm, a diameter of 3mm of outermost layer covering, double headed roller FC/APC joints；In the inner chamber of shell 2
Reinforcing plate 3 on portion's annular groove and baffle plate 1 and pressure-bearing baffle plate 7 in the annular groove at the inner chamber two ends of shell 2 are provided with several
Corresponding uniform through hole, several special optical patchcords are passed through from through hole, are one layer of fixing glue on the right side of reinforcing plate 3,
The epoxy sealing glue of the high leakproofness of proportioning is marked between fixing glue and pressure-bearing baffle plate 7, the baffle plate 1 in reinforcing plate 3 Yu left side
Between be marked with proportioning high leakproofness epoxy sealing glue, fluid sealant solidification after, shell 2, reinforcing plate 3, baffle plate 1, optical patchcord
4th, pressure-bearing baffle plate 7 constitutes seal assembly.It is embedded with respectively in the outside groove (O-ring seal fixing groove) set of shell 2
First O-ring seal and the second O-ring seal, there is two circle grooves on shell annular boss, and pressure ring 5 is the ring junction with boss
Structure, boss plays anti-rotation.Described shell, reinforcing plate, baffle plate, pressure-bearing baffle plate, pressure ring, the center of screw thread gland are coaxial
The heart is set.Described multi-core fiber seal assembly is generally cylindric.
During installation, by tighten screw thread gland 6 promote shell make shell move to left crush seal pad make its be deformed sealing
The gap of shell and window of container.Other first O-ring seal and the second O-ring seal realize second with window of container side
Secondary, third time is sealed.
Two packing elements are disposed in the both sides of window of container, the epoxy sealing glue of the high leakproofness of proportioning is perfused with, makes glue
Permeate all gaps and reach the purpose being again sealed off.
There is the U-shaped groove of two circles on described shell annular boss, can guarantee that after sealing gasket compression, the change of a sealing gasket part
Shape amount is filled up in groove, and has better seal with window of container, and the four of inner chamber encloses epoxy sealing glue of the grooves to perfusion
More preferable fixation is played after solidification.It is made of No. 45 steel of high-quality, with good explosion-proof impact property.
Described optical patchcord is special optical patchcord：One section is naked fibre in the middle of optical patchcord, and optical fiber is single-mode fiber
Or a diameter of μm of level of multimode fibre, another section of optical fiber for the sheath with diameter 1mm, a diameter of 3mm surrounding layers of outermost layer, 1mm
Outer diameter sheath and reinforcing plate on several through hole internal diameters match, on 3mm surrounding layers and baffle plate and reinforcement baffle plate in several through holes
Footpath matches.Without 3mm outsourcings layer segment within baffle plate and pressure-bearing baffle plate, optical patchcord quantity is determined according to actual needs.
Described sealing gasket be GB1147 vacuum rubbers, non-trimming, without scratch, flawless autocracy vulcanization form.
Described O-ring seal material be nitrile rubber, it is desirable to breaking strength be 11Mpa, elongation rate of tensile failure ＞ 220%,
Shore hardness is 60~70, and compression set is 100 DEG C × 22h, no more than 28%, the surface quality requirements of nitrile rubber without
It is overlap, flawless, indefectible.Autocracy vulcanization is formed, the O-ring seal performance guarantee sealing effectiveness of high-quality.
Described fluid sealant is excellent using adhesive property, the type epoxide-resin glues of 555- III of good airproof performance, and it flows when irrigating
Dynamic property is good, can fill out all gaps and realize sealing.Because of its high mechanical properties, cure shrinkage is small, so its product size is stable,
Internal stress is small, not easy to crack, room temperature just it is curable, bare fibre is not damaged after adhesive curing, glue and naked fibre, plastics surrounding layer and
The adhesive property of metal is excellent, and the technique vacuumized is employed during perfusion and ensure that encapsulating quality, through examining.
Described reinforcing plate, baffle plate, pressure-bearing baffle plate have several uniform through holes to play fixed several optical fiber, it is to avoid
The overbending of optical fiber, which knots, influences throughput, and material used is made of No. 45 steel of high-quality, with anti-well
Blast impulse performance.
Described pressure ring is the loop configuration with boss, and boss plays anti-rotation, prevented what sealing gasket was compressed in screw thread
During rotation dislocation improper extruding.It ensure that the uniform force of sealing gasket.
More specifically, with reference to Fig. 1-7：
High leakproofness multi-core fiber seal assembly under the Explosive Shock Loading that the present invention is provided, is characterized in, described
Multi-core fiber seal assembly includes shell 2, reinforcing plate 3, baffle plate 1, optical patchcord 4, pressure-bearing baffle plate 7, pressure ring 5, screw thread gland 6.
The annular groove of fixed reinforcing plate 3 is provided with the middle part of the described inner chamber of shell 2, shell inner cavity two ends are provided with placement baffle plate 1 and hold
The annular groove of baffle plate 7 is pressed, inner chamber is additionally provided with four circle grooves；Optical patchcord 4 is special optical patchcord：Middle one section is naked fibre
20, optical fiber is a diameter of μm of level of single-mode fiber or multimode fibre, another section of optical fiber for the sheath 21 with diameter 1mm, outermost layer
A diameter of 3mm covering 22, double headed roller FC or other models joint 23；Reinforcing plate 3 in the middle part of the inner chamber of shell 2 on annular groove and
Baffle plate 1 and pressure-bearing baffle plate 7 in the annular groove at the inner chamber two ends of shell 2 are provided with several corresponding uniform through holes, Shuo Gente
The optical patchcord of system is passed through from through hole, is one layer of fixing glue 11 on the right side of reinforcing plate 3, fixing glue 11 and pressure-bearing baffle plate it
Between be marked with proportioning high leakproofness epoxy sealing glue, the high leakproofness of proportioning is marked between the baffle plate 1 in reinforcing plate 3 and left side
Epoxy sealing glue, fluid sealant solidification after, shell, reinforcing plate, baffle plate, optical patchcord, pressure-bearing baffle plate constitute seal assembly.Outside
The first O-ring seal 12 and the second O-ring seal 13 are embedded with respectively in the outside groove set of shell, in shell annular boss
On have a two circle grooves 40, annular boss has sealing gasket 14, and pressure ring 5 is the loop configuration with boss 50,50 anti-rotations of boss
Effect.Described shell 2, reinforcing plate 3, baffle plate 1, pressure-bearing baffle plate 7, pressure ring 5, the center of screw thread gland 6 are concentric setting.
Described multi-core fiber seal assembly is generally cylindric.
Decline pressure ring 5 by tightening screw thread gland 6, so that promoting shell 2 shell 2 is moved to left crush seal pad 14 makes it
It is deformed the gap of sealing shell 2 and window of container.The other O-ring seal 13 of first O-ring seal 12 and second and container
Window 16 realizes second, third time sealing sideways.
Two packing elements 9 are disposed in the both sides of window of container, the epoxy sealing glue of the high leakproofness of proportioning is perfused with, makes glue
Permeate all gaps and reach the purpose being again sealed off.
There is the U-shaped groove 40 of two circles on the described annular boss of shell 2, can guarantee that after sealing gasket compression, sealing gasket 14 1
The deflection divided is filled up in U-shaped groove 40, and has better seal with window of container 16, and four circle grooves of inner chamber are to perfusion
Epoxy sealing adhesive curing after play more preferable fixation.Shell 2 is made of No. 45 steel of high-quality, with good explosion-proof
Impact property.
Described optical patchcord 4 is special optical patchcord 4：One section is naked fibre in the middle of optical patchcord 4, and optical fiber is single-mode optics
Fine or a diameter of μm of level of multimode fibre, another section of optical fiber for the sheath 21 with diameter 1mm, a diameter of 3mm surrounding layers of outermost layer,
Several through hole A31 internal diameters match on 1mm outer diameter sheath and reinforcing plate, 3mm surrounding layers and number on baffle plate 1 and pressure-bearing baffle plate 7
Individual through hole internal diameter matches.Without 3mm outsourcings layer segment within baffle plate 1 and pressure-bearing baffle plate 7, the quantity of optical patchcord 4 is according to reality
It needs to be determined that.
Described sealing gasket 14 be GB1147 vacuum rubbers, non-trimming, without scratch, flawless autocracy vulcanization form,.
Described O-ring seal material be nitrile rubber, it is desirable to breaking strength be 11Mpa, elongation rate of tensile failure ＞ 220%,
Shore hardness is 60~70, and compression set is 100 DEG C × 22h, no more than 28%, the surface quality requirements of nitrile rubber without
It is overlap, flawless, indefectible.Autocracy vulcanization is formed, the O-ring seal performance guarantee sealing effectiveness of high-quality.
Described epoxy sealing glue uses the type epoxide-resin glues of 555- III, by (first:Second) it is (2:1) match, i.e., by 555-
The epoxy resin of III two parts of first component (commercially available) is consolidated for 24 hours after being mixed with (commercially available) a epoxy resin of the component Bs of 555- III
Change.
Described reinforcing plate 3, baffle plate 1, pressure-bearing baffle plate 7 have several uniform through holes to play fixed several optical fiber, keep away
The overbending knotting influence throughput of optical fiber is exempted from, material used is made of No. 45 steel of high-quality, with fine
Explosion-proof impact property.
Described pressure ring 5 is the loop configuration with boss 50, and boss 50 plays anti-rotation, prevented sealing gasket 14 in screw thread
The improper extruding of rotation dislocation during compression.It ensure that the uniform force of sealing gasket.
Internal diameter of the described reinforcing plate 3, baffle plate 1, the external diameter of pressure-bearing baffle plate 7 respectively with shell 2 matches.
The external diameter of the internal diameter and shell 2 of described sealing gasket 14 matches.
The internal diameter of two described packing elements 8 is more than the external diameter of shell 2.
High leakproofness multi-core fiber component static sealing performance：Container in 0.2MPa pressure (absolute pressure), fill helium
Helium mass spectrum leak detection under conditions of 100%, the detection leak rate of multi-core fiber component is less than 6 × 10-11Pa·m3/s。
High leakproofness multi-core fiber component dynamic sealing performance：
6 groups of multi-core fiber components are installed in small container window, are to the superpressure of multi-core fiber component after experiment blast
SF is delivered in 14MPa, container6Gas, SF in monitoring of environmental before experiment6Background is less than 2 × 10-12ml/ml；Concentration is still low after experiment
In experiment preceding 2 × 10-12Ml/ml illustrates No leakage.
The sealing multi-core fiber component of the present invention, inside is recorded using epoxy sealing glue, outside uses sealing gasket sealing,
O-ring radial seal and epoxy sealing glue record etc. it is a variety of repeatedly sealedly modes realize efficient sealed, reached in 14MPa
Under conditions of blast load, leak rate is less than 6 × 10-11Pa·m3/ s, the multicore structure of use, compact conformation meets miniaturization
Requirement, the high leakproofness multi-core fiber component of making detects through light power meter：Throughput is more than 90%, and indices are equal
Meet test request.
Claims (10)
1. multi-core fiber component use in blast impulse test, it is characterised in that including shell (2) and be arranged inside shell (2)
Baffle plate (1), reinforcing plate (3) and pressure-bearing baffle plate (7)；The outer wall of shell (2) is provided with annular boss；In the middle part of the inner chamber of shell (2)
First annular groove is provided with, for fixing reinforcing plate (3)；The inner chamber of shell (2) be provided at both ends with the second annular groove and
3rd annular groove, is respectively used to fixed dam (1) and pressure-bearing baffle plate (7)；In one end outer wall of the 3rd annular groove of shell
Be slidably matched with the formation of the inwall of screw thread gland (6), the outer wall of screw thread gland (6) is provided with screw thread, for window of container shape
Coordinate into screw thread；Screw thread gland (6) is provided with pressure ring (5) between annular boss；Baffle plate (1), reinforcing plate (3) and pressure-bearing baffle plate
(7) corresponding through hole is provided with, optical patchcord is passed through from through hole；The center section of the optical patchcord is naked fibre, through adding
The part of strong plate (3) carries sheath (21), and sheath (21) and covering are carried in the part through baffle plate (1) and pressure-bearing baffle plate (7)
(22)。
2. multi-core fiber component use in blast impulse as claimed in claim 1 test, it is characterised in that first annular groove with
Ring-type is provided with colloid fixed groove between second annular groove, along ring between first annular groove and the 3rd annular groove
Shape is provided with colloid fixed groove.
3. multi-core fiber component is used in blast impulse test as claimed in claim 1, it is characterised in that on annular boss, ring
Shape is provided with O-ring seal fixing groove, for fixedly secured O-ring seal.
4. multi-core fiber component is used in blast impulse test as claimed in claim 3, it is characterised in that shell (2), reinforcing plate
(3), baffle plate (1), pressure-bearing baffle plate (7), pressure ring (5), screw thread gland (6) are concentric setting.
5. multi-core fiber component is used in blast impulse test as claimed in claim 1, it is characterised in that the pressure ring (5) is band
The pressure ring of boss.
6. multi-core fiber component is used in blast impulse test as claimed in claim 1, it is characterised in that the inner chamber in shell (2)
In be filled with epoxy sealing glue.
7. multi-core fiber component is used in blast impulse test as claimed in claim 6, it is characterised in that the one of reinforcing plate (3)
Side is provided with fixing glue (11), for fixing optical fiber and reinforcing plate.
8. multi-core fiber component is used in blast impulse test as claimed in claim 1, it is characterised in that set in the inner side of boss
There is sealing gasket (14).
9. multi-core fiber component is used in blast impulse test as claimed in claim 1, it is characterised in that the two ends in shell (2)
It is provided with cartridge (8).
10. multi-core fiber component is used in blast impulse test as claimed in claim 1, it is characterised in that in the side of annular boss
Face, is provided with U-shaped groove (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029879.3A CN102565977B (en) | 2012-02-10 | 2012-02-10 | Multi-core fiber component is used in blast impulse test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029879.3A CN102565977B (en) | 2012-02-10 | 2012-02-10 | Multi-core fiber component is used in blast impulse test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102565977A CN102565977A (en) | 2012-07-11 |
| CN102565977B true CN102565977B (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210029879.3A Expired - Fee Related CN102565977B (en) | 2012-02-10 | 2012-02-10 | Multi-core fiber component is used in blast impulse test |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135178B (en) * | 2013-03-15 | 2014-11-19 | 中国工程物理研究院核物理与化学研究所 | Compression-resistant fiber optic airtight transition box |
| CN106323578B (en) * | 2016-08-10 | 2019-03-26 | 中国工程物理研究院流体物理研究所 | The sealing optic test window device of explosion-proof impact |
| CN107678102A (en) * | 2017-11-16 | 2018-02-09 | 广州市光机电技术研究院 | A kind of optical fiber splicing device for coordinating vacuum equipment to use and method |
| CN109506063A (en) * | 2019-01-16 | 2019-03-22 | 中国工程物理研究院流体物理研究所 | A kind of four-way component |
| CN113193450B (en) * | 2020-01-14 | 2023-07-21 | 中国科学院沈阳自动化研究所 | Vacuum vulcanization preparation process of a full sea deep watertight connector |
| CN111175921B (en) * | 2020-02-14 | 2022-04-05 | 中国工程物理研究院核物理与化学研究所 | A protection structure for long-line densely packed optical fiber array |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5897015A (en) * | 1981-12-05 | 1983-06-09 | Kokusai Denshin Denwa Co Ltd <Kdd> | Watertight optical fiber connector |
| US6993239B2 (en) * | 2003-10-03 | 2006-01-31 | Avanex Corporation | Optical modules employing glass-sealed fiber feedthru with C-seal |
| JP4162011B2 (en) * | 2006-03-29 | 2008-10-08 | ソニー株式会社 | Airtight sealing device for polarization maintaining optical fiber |
| CN201188135Y (en) * | 2008-05-08 | 2009-01-28 | 北京创毅视讯科技有限公司 | Optical fiber connector |
| CN202486372U (en) * | 2012-02-10 | 2012-10-10 | 中国工程物理研究院流体物理研究所 | Multi-core optical fiber assembly for explosion shock test |
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- 2012-02-10 CN CN201210029879.3A patent/CN102565977B/en not_active Expired - Fee Related
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