CN205373914U - A link up ware for monitoring of oil -immersed transformer optic fibre - Google Patents
A link up ware for monitoring of oil -immersed transformer optic fibre Download PDFInfo
- Publication number
- CN205373914U CN205373914U CN201620107068.4U CN201620107068U CN205373914U CN 205373914 U CN205373914 U CN 205373914U CN 201620107068 U CN201620107068 U CN 201620107068U CN 205373914 U CN205373914 U CN 205373914U
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- ferrule
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- fastening bolt
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- oil
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Abstract
The utility model discloses a link up ware for monitoring of oil -immersed transformer optic fibre and preparation method, having a perfect understanding the ware and including hollow fastening bolt, can approximately closing bolted cover on fastening bolt, placing the adapter sleeve in the fastening bolt in, wherein adapter sleeve is built -in has optic fibre, two sections ferrule about the optic fibre outside is equipped with, the through -hole of one section ferrule bottom fastening bolt penetrates, and another section ferrule is penetrated by the through -hole at bolted cover center, it is not closed between two sections ferrule, leave one section gap, adopt sealed glue and seal two sections ferrule's section department, then the outer cover between two sections ferrule's section there is adapter sleeve to the filling is sealed gluey sealed fixed between adapter sleeve and ferrule. The utility model provides an it is simple to link up ware preparation method, sealed effectual, moreover greatly reduced the preparation cost, can the wide application sealed between optic fibre and transformer.
Description
Technical field
This utility model belongs to oil-filled transformer fiber optic monitoring technology field, particularly relates to a kind of through device for oil-filled transformer fiber-optic monitoring.
Background technology
Oil-filled transformer is industrial and mining establishment and one of visual plant in civil buildings power supply-distribution system.Present commonly used fiber grating measuring system accurately measures the temperature signal of oil-filled transformer, application number be 201410475425.8 Chinese patent application disclose a kind of oil-filled transformer temperature measurement system, including fiber-optic grating sensor, grating signal demodulating system and signal processing display instrument table；This utility model, by arranging high temperature resistant coat at sensor external, makes fiber-optic grating sensor be encapsulated in insulating protective layer, it is to avoid electric information sensor indirectly measure inaccurate not in time with non-intuitive problem.But the Transmission Fibers for the internal thermometric of oil-filled transformer belongs to wired sensing, it is necessary to transmit out by fiber medium by the data of grating collection.Owing to gas permeation occurs in oil-filled transformer; its dielectric level can be substantially reduced, be easily caused disruptive discharge, it is therefore desirable to draw transformator place at optical fiber and carry out sealing protection process; otherwise not only affect the properly functioning of transformator, also can lead to substantial equipment security incident.
Today mainly by the through device of housing through transformer tank splicing optical fibers sensor, it is known that through device be made up of equipped with the 3/8NPT rustless steel accessory of optical fiber in conjunction with lining and inside two ST types.The through device of housing is internal uses solder glass to seal, and the through device of housing is connected with transformer-cabinet by special through device plate.This through device need to adopt glass solder method to seal when preparing, and operation easier is high, and owing to welding temperature is higher, when postwelding cools down, coefficient of expansion difference is relatively big, can produce bigger stress in weld seam, causes cracking time serious, it is easy to gas leakage.The price of this through device is prohibitively expensive, causes the cost of fiber-optic monitoring significantly to increase.
Utility model content
For the deficiencies in the prior art, this utility model provides a kind of through device for oil-filled transformer fiber-optic monitoring and preparation method thereof, this utility model adopts fluid sealant that optical fiber junction and bolt junction carry out omnidistance sealing, solve through sealing problem during fiber grating on-line monitoring oil-filled transformer, the preparation of described through device is simple, less costly.
The technical solution of the utility model is as follows: a kind of through device for oil-filled transformer fiber-optic monitoring, described through device includes the fastening bolt (3) of hollow, the bolted cover (1) that can cover in fastening bolt (3), is placed in the connection sleeve pipe (5) fastened in bolt (3), connects sleeve pipe (5) and is built-in with optical fiber (6)；
Described optical fiber (6) outside is provided with two sections ferrule (7), one section of ferrule (7) is penetrated by the through hole of fastening stud base, and another section of ferrule (7) is penetrated by the through hole at bolted cover (1) center；
Do not close between two sections of ferrules (7); leave one section of gap; fluid sealant (4) is adopted to be sealed by the section part of two sections of ferrules (7); then the outer layer between the section of two sections of ferrules (7) is cased with one section of connection sleeve pipe (5); for protecting the optical fiber between ferrule section, the length of ferrule should be able to be completely covered the distance between two sections；Then between connection sleeve pipe (5) and ferrule (7), filling and sealing glue (4) seals fixing；Above-mentioned seal process guaranteeing, optical fiber is without bending.
Between described bolted cover (1) with fastening bolt (3) and fastening bolt (3) with is connected between sleeve pipe (5) and all adopts fluid sealant (4) sealing to fix.
Described through device is additionally provided with rubber washer (2), and described rubber washer (2) is sealed between fastening bolt (3) and transformer-cabinet.
The material of described fluid sealant (4) is epoxy resin；The material of described connection sleeve pipe (5) is politef.
If adopting a ferrule parcel optical fiber, because the external diameter of every optical fiber is generally 125-140um, the diameter of ferrule is less, specification is generally 1.6～3.0mm, from ferrule top to bottom encapsulating, due to fluid sealant comparatively thickness, not easily adopt the mode of injection to carry out encapsulating, be not easy to observe around optical fiber whether fully sealing.The very few easy gas leakage of encapsulating, does not have sealing effectiveness, if encapsulating too much easily by whole optical fiber seal in ferrule, during to subsequent operation, optical fiber is difficult to and ferrule is peeled off, then optical fiber cannot be connected with Fibre Optical Sensor etc..
So this utility model adopts leaves one section of gap structure mode in the middle of two sections of ferrules, the gap place of two sections of ferrules exposes optical fiber, the fluid sealant of thickness is spread upon on exposed optical fiber outer wall, again ferrule is inserted in outer wall to be coated with outside the optical fiber of fluid sealant, thus allowing fluid sealant by one section of optical fiber seal in ferrule.Being provided with one section of gap purpose between two sections of ferrules is facilitate encapsulating, not easily leaks gas, and easily observes whether optical fiber is entirely sealed in ferrule.
This utility model provide through device first by optical fiber seal in two sections of ferrules, optical fiber seal after two sections of optical fiber again ferrule is sealed in connection sleeve pipe in, outer layer connect sleeve pipe can effectively protect optical fiber, it is prevented that its damage；Adopt bilayer sleeve to carry out sealing and anti-leakage effective, and optical signal loss is low.Finally Sealed casing pipe is sealed in fastening bolt, fastening bolt upper cover has after on bolted cover, accomplish the omnidistance sealing within through device, then through device is bolted on transformer-cabinet by fastening, thus completely cutting off the interior or exterior space of transformer-cabinet, it is ensured that meet the properly functioning required air-proof condition of transformator.
Compared with prior art, this utility model has the advantages that the through device preparation method that this utility model provides is simple, good sealing effect, and greatly reduces preparation cost, it is possible to be widely used in the optical signal transmission inside and outside oil-filled transformer.
Accompanying drawing explanation
The profile of the through device that Fig. 1 provides for this utility model；
Fig. 2 is the structural representation of described through device；
Figure indicates: 1-bolted cover, 2-rubber sheet gasket, 3-fastens bolt, 4-fluid sealant, and 5-connects sleeve pipe, 6-optical fiber, 7-ferrule, S-gap.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in further details.
Embodiment 1
As shown in Figure 1 and Figure 2, described through device includes bolted cover 1, rubber washer 2, fastening bolt 3, fluid sealant 4, connects sleeve pipe 5, output optical fibre 6 and ferrule 7；Being provided with two sections ferrule 7 outside optical fiber 6, one section of ferrule 7 is penetrated by the through hole of fastening stud base, and another section of ferrule 7 is penetrated by the through hole at bolted cover 1 center；Do not close between two sections of ferrules 7, leave one section of gap S, adopting fluid sealant 4 to be sealed by the section part of two sections of ferrules 7, be then cased with one section of connection sleeve pipe 5 between the section of two sections of ferrules 7, the length connecting sleeve pipe 5 should be completely covered the distance between two sections；And seal fixing connecting filling and sealing glue 4 between sleeve pipe 5 and ferrule 7；Between described bolted cover 1 with fastening bolt 3 and fastening bolt 3 and is connected between sleeve pipe 5 all to adopt fluid sealant 4 and seals and fix；Described rubber washer 2 is sealed between fastening bolt 3 and transformer-cabinet.
In the present embodiment, the material of fluid sealant 4 is epoxy resin；The material connecting sleeve pipe 5 is politef.
The preparation method of described through device is as follows:
Being provided with two sections of ferrules 7 outside optical fiber 6, penetrated by the through hole bottom fastening bolt 3 by one section of ferrule 7, another section of ferrule 7 is penetrated by the through hole at bolted cover 1 center；Leaving one section of gap S between two sections of ferrules 7, expose one section of optical fiber, exposed optical fiber outer wall is smeared fluid sealant, two sections of ferrules are inserted in outside the optical fiber scribbling fluid sealant respectively, thus fluid sealant by one section of optical fiber seal in two sections of ferrules；Then the outside between the section of two sections of ferrules 7 is cased with one section of connection sleeve pipe 5, covers the distance between two sections, and adopts fluid sealant 4 will to be fixed by cementing sealing between ferrule and connection sleeve pipe；
It is placed in, by connecting sleeve pipe 5, the inside fastening bolt 3 after fluid sealant solidification, connects and use fluid sealant 4 to seal between sleeve pipe 5 and fastening bolt 3；After gelling to be sealed is solid, bolted cover 1 covers and seals on fastening bolt 3, and obtaining inner sealing has the through device of optical fiber；
Through device is attached fixing by fastening the ring flange of bolt and oil-filled transformer tank surface, and fastening bolt 3 is lined with rubber sheet gasket 2 with ring flange seam and seals.
The using method of described through device is as follows:
After connecting through device according to Fig. 1, the special flange dish that through device is provided with transformer tank surface is connected, then again the optical fiber drawn and optical cable welding, finally, is connected with (FBG) demodulator realizing optical fiber Bragg raster.
Above in conjunction with accompanying drawing, detailed description of the invention of the present utility model is explained in detail, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, it is also possible to make various change under the premise without departing from this utility model objective.
Claims (5)
1. the through device for oil-filled transformer fiber-optic monitoring, it is characterized in that, described through device includes the fastening bolt (3) of hollow, the bolted cover (1) that can cover in fastening bolt (3) and is placed in the connection sleeve pipe (5) in fastening bolt (3)；Wherein connect sleeve pipe (5) and be built-in with optical fiber (6)；
Described optical fiber (6) outside is provided with two sections ferrule (7), one section of ferrule (7) is penetrated by the through hole of fastening stud base, and another section of ferrule (7) is penetrated by the through hole at bolted cover (1) center；
Do not close between two sections of ferrules (7), leave one section of gap, fluid sealant (4) is adopted to be sealed by the section part of two sections of ferrules (7), then the outer layer between the section of two sections of ferrules (7) is cased with one section of connection sleeve pipe (5), and seals fixing connecting filling and sealing glue (4) between sleeve pipe (5) and ferrule (7).
2. the through device for oil-filled transformer fiber-optic monitoring as claimed in claim 1, it is characterized in that, between described bolted cover (1) with fastening bolt (3) and fastening bolt (3) with is connected between sleeve pipe (5) and all adopts fluid sealant (4) sealing to fix.
3. the through device for oil-filled transformer fiber-optic monitoring as claimed in claim 1, it is characterized in that, described through device is additionally provided with rubber washer (2), and described rubber washer (2) is arranged between fastening bolt (3) and transformer-cabinet.
4. the through device for oil-filled transformer fiber-optic monitoring as claimed in claim 1, it is characterised in that the material of described fluid sealant (4) is epoxy resin.
5. the through device for oil-filled transformer fiber-optic monitoring as claimed in claim 1, it is characterised in that the material of described connection sleeve pipe (5) is politef.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107068.4U CN205373914U (en) | 2016-02-03 | 2016-02-03 | A link up ware for monitoring of oil -immersed transformer optic fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107068.4U CN205373914U (en) | 2016-02-03 | 2016-02-03 | A link up ware for monitoring of oil -immersed transformer optic fibre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205373914U true CN205373914U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620107068.4U Expired - Fee Related CN205373914U (en) | 2016-02-03 | 2016-02-03 | A link up ware for monitoring of oil -immersed transformer optic fibre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205373914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675167A (en) * | 2016-02-03 | 2016-06-15 | 昆明理工光智检测科技有限公司 | Fiber monitoring through device for oil-immersed transformer, and preparation method for fiber monitoring through device |
| CN113607303A (en) * | 2021-07-28 | 2021-11-05 | 西安和其光电科技股份有限公司 | Optical fiber packaging method and temperature measuring optical fiber |
-
2016
- 2016-02-03 CN CN201620107068.4U patent/CN205373914U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675167A (en) * | 2016-02-03 | 2016-06-15 | 昆明理工光智检测科技有限公司 | Fiber monitoring through device for oil-immersed transformer, and preparation method for fiber monitoring through device |
| CN113607303A (en) * | 2021-07-28 | 2021-11-05 | 西安和其光电科技股份有限公司 | Optical fiber packaging method and temperature measuring optical fiber |
| CN113607303B (en) * | 2021-07-28 | 2023-12-22 | 西安和其光电科技股份有限公司 | Optical fiber packaging method and temperature measuring optical fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20190203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |