CN106340372A - Closed type optical fiber pass-through device and processing method thereof - Google Patents
Closed type optical fiber pass-through device and processing method thereof Download PDFInfo
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- CN106340372A CN106340372A CN201510414105.6A CN201510414105A CN106340372A CN 106340372 A CN106340372 A CN 106340372A CN 201510414105 A CN201510414105 A CN 201510414105A CN 106340372 A CN106340372 A CN 106340372A
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Abstract
The invention relates to the technical field of communication and provides a closed type optical fiber pass-through device and a processing method thereof. The device comprises a flange, an installation plate and optical fiber pass-through devices, wherein each of the optical fiber pass-through devices comprises a main body with a through hole, a ceramic inserted core, and two sleeves; the ceramic inserted core is bonded inside the through hole; the ceramic inserted core is provided with a light-permeable bare optical fiber encapsulated with glue; the two sleeves are positioned inside the through hole and sleeve on two ends of the ceramic inserted core. According to the device, the airtightness of the optical fiber pass-through device inside is guaranteed through glue binding sealing mode inside the optical fiber pass-through device; threaded connection is adopted between the optical fiber pass-through device main body and the installation plate, and screw thread assembling play the role of sealing so that the sealing grade of the closed type optical fiber pass-through device is increased, and the sealing effect is good; meanwhile, due to the simple overall structure of the closed type optical fiber pass-through device, less space occupation, simple processing method and small cost, large scale production and application are facilitated.
Description
Technical field
The present invention relates to communication technique field, more specifically, it is to be related to be applied to the close of oil-filled transformer
Envelope type optical fiber pass-through facility and its processing method.
Background technology
Large Oil immersion transformator is one of nucleus equipment of mains network, and the change of its internal temperature directly affects
Transformer performance.Oil-filled transformer casing is hermetic container, is carrying out internal temperature to oil-filled transformer
During detection, fibre optic temperature sensor need to be allowed to pass through transformer box wall to extend into inside transformer, and fiber optic temperature
The position of sensor and transformer box wall insertion occurs the problem of sealing leak.
On solving the problems, such as sealing leak at transformator insertion, some domestic at present scientific research structures and enterprise
Have been proposed for some solutions, solution mainly adopts welded seal or cementing sealing.But
These solutions still suffer from various different shortcomings.
As the patent for cn102411172a for the China Patent Publication No. discloses, " a kind of optical fiber airtight switching is inserted
Seat ", this multi-tap employs cramped construction design, but core component optical fiber contact pins assembly therein needs
Individually customization processing, increased integrally-built complexity.
China Patent Publication No. is that the patent of cn103135178b discloses a kind of " resistance to compression optical fiber airtight switching
Box body ", two ends, in order to ensure sealing, are directly carried the optical fiber glue package of joint by this interconnecting device
To in tubular structure, all joints then need to be fixed on additional socket, and overall structure is excessively huge.
China Patent Publication No. is that the patent of cn101697026a discloses a kind of " isolated optical fiber seal switching
Device and its processing method ", it is ensured inside and outside by the method for welding optical glass in the middle of interior outward flange
Sealing, and the optical signal transmission in interior outside then by the one-to-one optical fiber collimator of optical glass both sides Lai
Ensure, although this mode can play reasonable sealing effectiveness, which employs multiple welding procedures,
Increased the complexity of overall manufacturing process, and optical signal meeting at optical glass is coupled with optical fiber collimator
Produce loss.
China Patent Publication No. be cn101697025a patent open " direct-pass type optical fiber sealing device and its
Manufacture method ", the structure of this optical fiber sealing device is relatively easy, but equally employs multiple welding procedures,
And the optical fiber in the program need to be processed through special plating metal on surface, slightly careless in welding process just have
Optical fiber may be damaged.
Therefore it can thus be seen that on solving the problems, such as sealing leak at transformator insertion, do not close at present
Suitable scheme to solve the problems, such as structure and manufacturing process simultaneously.
Content of the invention
It is an object of the invention to provide a kind of closed type optical fiber pass-through facility and its processing method are it is intended to solve
The problem of optical fiber sealing device complex structure, complex manufacturing technology in prior art.
For solving above-mentioned technical problem, the technical scheme is that a kind of offer closed type optical fiber insertion dress
Put, including the ring flange being welded on transformer-cabinet, be fixed on installing plate outside described ring flange and
It is threadingly attached on described installing plate and pass through the optical fiber insertion of described ring flange and transformer-cabinet conducting
Device, described optical fiber through device includes main body, ceramic insertion core and two sleeves with through hole, described pottery
Lock pin is adhered to described insertion in the hole, adopts mucilage sealing equipped with the bare fibre of light-permeable in described ceramic insertion core,
Described two sleeves are located at described insertion in the hole and are respectively sleeved in the two ends of described ceramic insertion core.
Alternatively, the two ends of described through hole all form the switching for placing outside st adaptor in enlarging shape
Mouthful.
Alternatively, described main body is provided with coniform external screw thread, and described installing plate is provided with coniform screwed hole,
Described coniform external screw thread is locked with described coniform screwed hole after smearing thread sealant.
Alternatively, described installing plate is additionally provided with the fixing hole for fixing outer protective housing.
Alternatively, described installing plate is secured by bolts on described ring flange, described ring flange and described peace
It is provided with sealing ring between dress plate.
Present invention also offers a kind of processing method of closed type optical fiber pass-through facility, comprise the following steps:
Preparation process:
Preparation is provided with the ring flange of centre bore；
Prepare installing plate: and the installing hole for installing optical fiber through device is processed on installing plate；
Prepare optical fiber through device: fixture has main body, ceramic insertion core and two sleeves of through hole, can
The bare fibre of printing opacity is in lock pin to form ceramic insertion core using glue package, and described ceramic insertion core is adhered to
Described insertion in the hole, described two sleeves is stretched into respectively and is placed on described pottery and insert by the two ends of described through hole
The two ends of core.
Number of assembling steps:
Ring flange is welded on transformer-cabinet；
The optical fiber preparing through device is installed on the installing hole of installing plate, and installing plate is fixed on
Outside ring flange.
Alternatively, in processing mounting holes, installing hole is coniform screwed hole；When preparing main body, main body
It is machined with outward the coniform external screw thread coordinating with described coniform screwed hole.
Alternatively, in number of assembling steps, by the coniform external screw thread of described main body smear after thread sealant with
Described coniform screwed hole locks.
Alternatively, when preparing main body, the two ends of described through hole carried out enlarging formed being used for placing outside
The converting interface of st adaptor.
Alternatively, when preparing ring flange, seal groove is set in ring flange outer surface, in assembling,
Sealing ring is placed in described seal groove；Or, when preparing installing plate, arrange close in installing plate inner surface
Sealing groove, in assembling, places sealing ring in described seal groove.
In the present invention, closed type optical fiber pass-through facility integrally by the way of cementing and thread seal, in optical fiber
Sealing by the way of glue adhering and sealing it is ensured that within optical fiber through device in through device internal structure,
And adopt between optical fiber through device main body and installing plate and threaded, Screw assembly plays certain close in itself
Envelope acts on, and so, improves the sealing grade of closed type optical fiber pass-through facility, sealing effectiveness is more preferable；Meanwhile,
Because closed type optical fiber pass-through facility overall structure is simple, space hold is little, and processing method is simple, is processed into
This is little, is easy to large-scale production and application.
Brief description
Fig. 1 is that closed type optical fiber pass-through facility provided in an embodiment of the present invention is installed on cuing open during transformer-cabinet
View；
Fig. 2 is the sectional view of optical fiber through device in the embodiment of the present invention；
Fig. 3 is the front view of installing plate in the embodiment of the present invention；
Fig. 4 is the sectional view of installing plate in the embodiment of the present invention；
Fig. 5 is the front view of ring flange in the embodiment of the present invention；
Fig. 6 is the sectional view of ring flange in the embodiment of the present invention；
10- transformer-cabinet；11- opening；20- ring flange；
21- centre bore；22- screw；23- seal groove；
30- installing plate；The coniform screwed hole of 31-；32- through hole；
33- fixing hole；40- optical fiber through device；41- main body；
411- through hole；412- converting interface；The coniform external screw thread of 413-；
42- ceramic insertion core；43- bare fibre；44- sleeve.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing and reality
Apply example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
Only in order to explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can
With directly on another element or may be simultaneously present centering elements.When an element is referred to as " connecting
In " another element, it can be directly to another element or may be simultaneously present centering elements.
Also, it should be noted the orientation term such as left and right, upper and lower in the present embodiment, it is only phase each other
To concept or with the normal operating condition of product as reference, and should not be regarded as restrictive.
With reference to Fig. 1, closed type optical fiber pass-through facility provided in an embodiment of the present invention, it is fixed on transformer-cabinet
On 10, it includes ring flange 20, installing plate 30 and optical fiber through device 40.Transformer-cabinet 10 has
Opening 11, ring flange 20 is welded in outside opening 11, and ring flange 20 has centre bore 21, centre bore 21
With opening 11 just to and turn on, installing plate 30 is fixed on outside ring flange 20.Optical fiber through device 40 is passed through
It is threadedly connected on installing plate 30 and passes through the centre bore 21 of ring flange 20, extend into transformer-cabinet 10
Opening 11 in.In conjunction with Fig. 2, optical fiber through device 40 includes main body 41, the pottery with through hole 411
Lock pin 42 and two sleeves 44, ceramic insertion core 42 is adhered in through hole 411 by glue, ceramic insertion core
Mucilage sealing is adopted equipped with the naked bare fibre 43 of light-permeable, the two ends of naked bare fibre 43 and ceramic insertion core 42 in 42
Two-port concordant, two sleeves 44 are respectively positioned in through hole 411 and are respectively sleeved in the two ends of ceramic insertion core 42.
In the present embodiment, closed type optical fiber pass-through facility integrally by the way of cementing and thread seal, in light
In fine through device 40 internal structure by the way of glue adhering and sealing it is ensured that within optical fiber through device 40
Sealing, and adopt between the main body 41 in optical fiber through device 40 and installing plate 30 and threaded, screw thread fills
Join and play certain sealing function in itself, so, improve the sealing grade of closed type optical fiber pass-through facility,
Sealing effectiveness is more preferable；Meanwhile, in the present embodiment, closed type optical fiber pass-through facility overall structure is simple, space
Take little, processing cost is little, is easy to large-scale production and application.
Referring again to Fig. 2, main body 41 is in long tubular structure, and through hole 411 insertion along its length is passed through
The two-port of through hole 411 is all higher than internal aperture, be the two ends of insertion all in enlarging shape, so, in expansion
Mouth shape is to be used for placing outside st adaptor to form converting interface 412.
Bare fibre 43 is bonded in by both ends of the surface grinding and polishing after ceramic insertion core 42 by glue, for transformator
Optical signal transmission inside and outside casing 10.Converting interface 412 is used for connecting the outside bare fibre with st adaptor
Cable, and the sheathed sleeve in ceramic insertion core 42 two ends 44 is also adopted by pottery and makes, it is used for ensureing exterior light
The hollow ferrule in st adaptor on fine cable is coaxial with the ceramic insertion core 42 in optical fiber through device 40, from
And guarantee that optical signal transmission is unobstructed.
The screw connection structure of optical fiber through device 40 and installing plate 30 is particularly as follows: the main body of optical fiber through device 40
41 are provided with coniform external screw thread 413, and installing plate 30 is provided with coniform screwed hole 31, coniform external screw thread
Lock with coniform screwed hole 31 after 413 uniform application thread sealants.So, further ensure
Coniform threaded sealing.
With reference to Fig. 3, Fig. 4, be provided with the middle part of installing plate 30 multiple coniform external screw threads 413 be used for installing multiple
Optical fiber through device 40.In the present embodiment, multiple optical fiber through devices 40 arrange ringwise, certain optical fiber insertion
Depending on the arrangement mode of device 40 can also be according to practical situation, it is not limited to shown in the present embodiment in figure.This enforcement
In example, there are eight coniform external screw threads 413, eight optical fiber through devices 40 of corresponding installation, eight optical fiber pass through
Logical device 40 surrounds two annulars.So, you can interior to transformer-cabinet 10 eight click through trip temperature monitoring.
Certainly, also dependent on practical situation, the optical fiber through device 40 of setting varying number.Meanwhile, installing plate 30
On be additionally provided with through hole 32, ring flange 20 is correspondingly provided with screw 22, between installing plate 30 and ring flange 20
It is fixedly connected with the bolt of screw 22 by sequentially passing through through hole 32.And, installing plate 30 also has and fixes
Hole 33, fixing hole 33 is used for installing fixing outer protective housing (not shown), and outer protective housing is used for
Protection external fiber joint.
With reference to Fig. 5, Fig. 6, for improving sealing grade further, between ring flange 20 and installing plate 30 also
It is provided with sealing ring (not shown).Specifically, seal groove 23 is set in ring flange 20 outer surface,
Sealing ring is placed in seal groove 23.Or, seal groove is set in installing plate 30 inner surface, in sealing
Sealing ring is placed in groove.
Present invention also offers the processing method of above-mentioned closed type optical fiber pass-through facility, it comprises the following steps:
Preparation process: in this step, prepare ring flange 20, installing plate 30 and optical fiber through device respectively
40, the preparation order of this three part can also be prepared in no particular order simultaneously.
Specifically, prepare ring flange 20, select circular carbon constructional steel plate, or other metallic plates, then
Open up centre bore 21 in carbon constructional steel plate center, in carbon constructional steel plate edge screw 22, exist simultaneously
One surface of carbon constructional steel plate opens up the seal groove 23 of ring-type, so forms ring flange 20.Certainly, this
Place can also be not provided with seal groove, and arranges seal groove on installing plate 30.
Prepare installing plate 30, select circular corrosion resistant plate or other metallic plates, processing is many on corrosion resistant plate
Individual coniform screwed hole 31, processing through hole 32 and fixing hole 33 simultaneously.
Prepare optical fiber through device 40: processing has the main body 41 of through hole 411, and two by through hole 411
End carries out enlarging process and forms converting interface 412, and processing in main body 41 can coniform screw thread on installing plate 30
The coniform external screw thread 413 of hole 31 cooperation；The lock pin of preparation hollow, bare fibre 43 is passed through glue bonding
In lock pin, bonding finishes the excision unnecessary bare fibre of lock pin two-port 43, make the both ends of the surface of bare fibre 43 with
The two-port of lock pin is concordant, and the both ends of the surface of grinding and polishing bare fibre 43, and so, i.e. encapsulation forms pottery and inserts
Core 42, ceramic insertion core 42 is bonded to glue in the through hole 411 of main body 41, then by two sleeves 44
It is adhered respectively to the two ends of through hole 411 and be placed on the two ends of ceramic insertion core 42.
Number of assembling steps: in this step, by ring flange 20, installing plate 30 and optical fiber through device 40 respectively
It is fixed installation, assembling sequence is in no particular order.
Specifically, ring flange 20 is welded on transformer-cabinet 10, makes centre bore 21 and the change of ring flange 20
Opening 11 on depressor casing 10 is just right, and installs sealing ring in the seal groove 23 of ring flange 20 outer surface.
The coniform external screw thread 413 of optical fiber through device 40 is smeared the circular cone on be aligned installing plate 30 after thread sealant
Shape screwed hole 31 screws in clockwise, tightens optical fiber through device 40 with box spanner, and erasing installing plate 30 surface is many
Remaining thread sealant.The converting interface 412 at optical fiber through device 40 two ends is connected the exterior light with st adaptor
Fine cable (not shown), constitutes the optic fibre light path inside and outside connection transformer-cabinet 10.Assembling is completed
Together with installing plate 30 afterwards is bolted on ring flange 20, and screws up with a wrench and complete closed type light
The assembling of fine pass-through facility.
In the present invention, because closed type optical fiber pass-through facility structure is simple, while ensureing sealing effectiveness,
Also its processing is made to be easier, processing technique is easily grasped, and is easy to large-scale production and application.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Any modification, equivalent and improvement made within spirit and principle etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. a kind of closed type optical fiber pass-through facility it is characterised in that: include being welded in method on transformer-cabinet
Blue disk, it is fixed on the installing plate outside described ring flange and is threadingly attached on described installing plate and wears
Cross the optical fiber through device of described ring flange and transformer-cabinet conducting, described optical fiber through device is included with insertion
The main body in hole, ceramic insertion core and two sleeves, described ceramic insertion core is adhered to described insertion in the hole, described pottery
Adopt mucilage sealing equipped with the bare fibre of light-permeable in porcelain lock pin, described two sleeves are located at described insertion in the hole and divide
It is not placed on the two ends of described ceramic insertion core.
2. closed type optical fiber pass-through facility as claimed in claim 1 it is characterised in that: described through hole
Two ends all form the converting interface for placing outside st adaptor in enlarging shape.
3. closed type optical fiber pass-through facility as claimed in claim 1 it is characterised in that: described main body is provided with
Coniform external screw thread, described installing plate is provided with coniform screwed hole, and described coniform external screw thread smears screw thread
Lock with described coniform screwed hole after sealant.
4. closed type optical fiber pass-through facility as claimed in claim 1 it is characterised in that: on described installing plate
It is additionally provided with the fixing hole for fixing outer protective housing.
5. the closed type optical fiber pass-through facility as any one of Claims 1-4 it is characterised in that:
Described installing plate is secured by bolts on described ring flange, is provided between described ring flange and described installing plate
Sealing ring.
6. a kind of processing method of closed type optical fiber pass-through facility it is characterised in that: comprise the following steps:
Preparation process:
Preparation is provided with the ring flange of centre bore；
Prepare installing plate: and the installing hole for installing optical fiber through device is processed on installing plate；
Prepare optical fiber through device: fixture has main body, ceramic insertion core and two sleeves of through hole, can
The bare fibre of printing opacity is in lock pin to form ceramic insertion core using glue package, and described ceramic insertion core is adhered to
Described insertion in the hole, described two sleeves is stretched into respectively and is placed on described pottery and insert by the two ends of described through hole
The two ends of core.
Number of assembling steps:
Ring flange is welded on transformer-cabinet；
The optical fiber preparing through device is installed on the installing hole of installing plate, and installing plate is fixed on
Outside ring flange.
7. closed type optical fiber pass-through facility as claimed in claim 6 processing method it is characterised in that:
During processing mounting holes, installing hole is coniform screwed hole；Prepare main body when, be machined with outside main body with described
The coniform external screw thread of coniform screwed hole cooperation.
8. closed type optical fiber pass-through facility as claimed in claim 7 processing method it is characterised in that:
In number of assembling steps, by the coniform external screw thread of described main body smear after thread sealant with described coniform screw thread
Hole locks.
9. closed type optical fiber pass-through facility as claimed in claim 6 processing method it is characterised in that:
During preparation main body, the two ends of described through hole are carried out enlarging and forms the switching being used for placing outside st adaptor
Mouthful.
10. closed type optical fiber pass-through facility as claimed in claim 6 processing method it is characterised in that:
When preparing ring flange, seal groove is set in ring flange outer surface, in assembling, in described seal groove
Place sealing ring；Or, when preparing installing plate, seal groove is set in installing plate inner surface, in assembling
When, place sealing ring in described seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510414105.6A CN106340372A (en) | 2015-07-14 | 2015-07-14 | Closed type optical fiber pass-through device and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510414105.6A CN106340372A (en) | 2015-07-14 | 2015-07-14 | Closed type optical fiber pass-through device and processing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106340372A true CN106340372A (en) | 2017-01-18 |
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ID=57826129
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510414105.6A Pending CN106340372A (en) | 2015-07-14 | 2015-07-14 | Closed type optical fiber pass-through device and processing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643567A (en) * | 2017-11-08 | 2018-01-30 | 长沙湘计海盾科技有限公司 | The excessively fine sealing structure of stifled core and sealing assembly method of a kind of watertight connector |
| CN109254364A (en) * | 2018-11-14 | 2019-01-22 | 四川光恒通信技术有限公司 | A kind of unidirectional optical device of novel fully-sealed single fiber and its packaging method |
| CN112002524A (en) * | 2020-08-28 | 2020-11-27 | 华北电力大学（保定） | Oil-immersed transformer bushing |
| CN112013990A (en) * | 2020-08-28 | 2020-12-01 | 华北电力大学（保定） | Temperature on-line monitoring device for bushing conducting rod of oil-immersed transformer |
| CN112630897A (en) * | 2020-11-29 | 2021-04-09 | 西安和其光电科技股份有限公司 | Temperature measurement optic fibre switching module and take temperature measurement optic fibre switching module's transformer |
| CN113310596A (en) * | 2021-05-26 | 2021-08-27 | 南京力通达电气技术有限公司 | System and method for monitoring gas and temperature in transformer oil based on pure optical fiber sensing |
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| CN107643567A (en) * | 2017-11-08 | 2018-01-30 | 长沙湘计海盾科技有限公司 | The excessively fine sealing structure of stifled core and sealing assembly method of a kind of watertight connector |
| CN109254364A (en) * | 2018-11-14 | 2019-01-22 | 四川光恒通信技术有限公司 | A kind of unidirectional optical device of novel fully-sealed single fiber and its packaging method |
| CN112002524A (en) * | 2020-08-28 | 2020-11-27 | 华北电力大学（保定） | Oil-immersed transformer bushing |
| CN112013990A (en) * | 2020-08-28 | 2020-12-01 | 华北电力大学（保定） | Temperature on-line monitoring device for bushing conducting rod of oil-immersed transformer |
| CN112630897A (en) * | 2020-11-29 | 2021-04-09 | 西安和其光电科技股份有限公司 | Temperature measurement optic fibre switching module and take temperature measurement optic fibre switching module's transformer |
| CN113310596A (en) * | 2021-05-26 | 2021-08-27 | 南京力通达电气技术有限公司 | System and method for monitoring gas and temperature in transformer oil based on pure optical fiber sensing |
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Application publication date: 20170118 |