CN108318972B - A kind of optical fiber connection seal and pressure bearing connector - Google Patents
A kind of optical fiber connection seal and pressure bearing connector Download PDFInfo
- Publication number
- CN108318972B CN108318972B CN201810208488.5A CN201810208488A CN108318972B CN 108318972 B CN108318972 B CN 108318972B CN 201810208488 A CN201810208488 A CN 201810208488A CN 108318972 B CN108318972 B CN 108318972B
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- Prior art keywords
- optical fiber
- pressure
- bearing
- collimating mirror
- joint body
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a kind of optical fiber to connect seal and pressure bearing connector, including bearing shell, left inside chamber and right inner cavity two parts are divided by multi-core optical fiber pressure-bearing joint body inside the bearing shell, it is described left inside intracavitary to be provided with spectral instrument and reception optical fiber, the spectral instrument is connected on the fibre-optical splice of multi-core optical fiber pressure-bearing joint body by reception optical fiber, it is intracavitary in the right side to be provided with transmission fiber and sapphire window, one end of the transmission fiber is connected in sapphire window, the other end is connected to the fibre-optical splice of multi-core optical fiber pressure-bearing joint body, the present invention proposes a kind of optical fiber jointing formed based on collimating mirror and sapphire glass and sealing ring, the optical signal of a piece optical fiber is transferred to an other optical fiber by collimating mirror and sapphire glass, and after an optical fiber is under pressure destruction, sapphire glass and sealing ring prevent pressure Fluid passes through, and an other optical fiber will not be destroyed, to protect on more expensive spectral instrument.
Description
Technical field
The present invention relates to Petroleum Down-hole Tool field, specially a kind of optical fiber connects seal and pressure bearing connector.
Background technique
It the use of the way of optical fiber connection universal is at present that two optical fiber are linked together using dedicated connector, still,
A fluid breaks if optical fiber is under pressure, pressure fluid can destroy an other optical fiber, the connector by the connector
It is unable to isolated pressure；To destroy more expensive spectral instrument.
Summary of the invention
The present invention, which provides one kind, can prevent external high pressure fluid after the failure of fibre-optical splice one end from influencing the other end
Optical fiber connects seal and pressure bearing connector.
In an embodiment of the invention, a kind of optical fiber connection seal and pressure bearing connector, including bearing shell, institute are provided
It states and left inside chamber and right inner cavity two parts, the left inside intracavitary setting is divided by multi-core optical fiber pressure-bearing joint body inside bearing shell
There are spectral instrument and reception optical fiber, the spectral instrument is connected to the first light of multi-core optical fiber pressure-bearing joint body by reception optical fiber
On fine connector, intracavitary in the right side to be provided with transmission fiber and sapphire window, one end of the transmission fiber is connected to blue treasured
On stone window mouth, the other end is connected on the second fibre-optical splice of multi-core optical fiber pressure-bearing joint body.
In an embodiment of the invention, left collimating mirror and right collimation are equipped in the multi-core optical fiber pressure-bearing joint body
Mirror, is provided with sapphire glass between the left collimating mirror and right collimating mirror, and the left collimating mirror is fixed on by lock ring
Wall in multi-core optical fiber pressure-bearing joint body, and connect with fibre-optical splice, the right collimating mirror is fixed by cover board and screw is in multicore
Wall in optical fiber pressure-bearing joint body, and connect with the second fibre-optical splice.
In an embodiment of the invention, the first sealing ring is equipped between the sapphire glass and left collimating mirror,
For preventing external high pressure measurement fluid from entering left inside chamber along right inner cavity.
In an embodiment of the invention, the sapphire glass and the first sealing ring are pressed into multi-core optical fiber together and hold
In the left end stepped hole of crimp head body, the end face of described left collimating mirror one end is adjacent to sapphire glass, utilizes spiral shell by lock ring
Left collimating mirror is pressed on the first fibre-optical splice by line connection.
In an embodiment of the invention, the transmission fiber receives the survey of the external high pressure at the sapphire window
The optical signal for measuring fluid, by optical fiber optical signal by the sapphire glass after the right collimating mirror, using the left side
Collimating mirror is simultaneously transferred to the reception optical fiber by first fibre-optical splice, finally the optical signal of external high pressure measurement fluid
It is transmitted to spectral instrument, completes measurement processing function.
In an embodiment of the invention, it is equipped between the multi-core optical fiber pressure-bearing joint body and the bearing shell
Second sealing ring, for preventing external test fluid from entering left inside chamber.
In an embodiment of the invention, described right collimating mirror one end is mounted on multi-core optical fiber pressure-bearing joint body right end
Inner hole in, and be fixed on multi-core optical fiber pressure-bearing joint body by cover board and screw.
In an embodiment of the invention, the fibre-optical splice on the multi-core optical fiber pressure-bearing joint body is equipped with one group
Or multiple groups.
In an embodiment of the invention, the left inside chamber side of the multi-core optical fiber pressure-bearing joint body is equipped with seal plug
Head, the seal plug are sealed in the surface of shell of left inside chamber by third sealing ring.
Optical fiber jointing of the invention is transferred to using the optical signal of an optical fiber by collimating mirror and sapphire glass
An other optical fiber, and after an optical fiber is under pressure destruction, sapphire glass and sealing ring prevent pressure fluid from passing through,
An other optical fiber will not be destroyed, to protect more expensive spectral instrument, can effectively solve asking for background technique proposition
Topic.
Detailed description of the invention
Fig. 1 is the attachment structure schematic diagram of the optical fiber connection seal and pressure bearing connector in one embodiment of the present invention；
Fig. 2 is the enlarged diagram of multi-core optical fiber pressure-bearing joint body in Fig. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of optical fiber to connect seal and pressure bearing connector, including bearing shell 2, bearing shell
2 inside are divided by multi-core optical fiber pressure-bearing joint body 4 for 19 two parts of left inside chamber 11 and right inner cavity, are provided with spectrum in left inside chamber 11
Instrument 24 and reception optical fiber 3, spectral instrument 24 are connected to the first optical fiber of multi-core optical fiber pressure-bearing joint body 4 by reception optical fiber 3
On connector 12, transmission fiber 6 and sapphire window 7 are provided in right inner cavity 19, one end of transmission fiber 6 is connected to sapphire window
On mouth 7, the other end is connected on the second fibre-optical splice 20 of multi-core optical fiber pressure-bearing joint body 4.
It is optical fiber directly the optical signal transmission of probe segment to optical spectrum instrumentation that spectral instrument 24, which measures general method,
Device carries out optical signal measurement processing, finally obtains result.In some applications, probe segment will bear high pressure, if probe
Part is damaged, and high-pressure fluid can enter spectral instrument 24 by optical fiber gap, to damage spectral instrument 24, influence to measure
As a result, and in the present embodiment, when probe is in the applications for having pressure, use two groups of optical fiber, the connection of one group of optical fiber is visited
Head point, another set optical fiber are connected to spectral instrument 24, and two groups of optical fiber are linked together by multi-core optical fiber pressure-bearing joint 4,
Intermediate seal partition is formed, while not losing optical signal transmission, achievees the purpose that protect spectral instrument.
Left collimating mirror 13 and right collimating mirror 17 are equipped in multi-core optical fiber pressure-bearing joint body 4, in left collimating mirror 13 and right collimation
It is provided with sapphire glass 16 between mirror 17, is provided with installation optical fiber in two opposing sidewalls of multi-core optical fiber pressure-bearing joint body 4
The hole of connector, left collimating mirror 13 are fixed in the hole on 4 inner wall of multi-core optical fiber pressure-bearing joint body by lock ring 14, and with the one the
The connection of one fibre-optical splice 12, right collimating mirror 17 are fixed in the hole on 4 inner wall of multi-core optical fiber pressure-bearing joint body by cover board 18, and
It connect with the second fibre-optical splice 20, is equipped between the excircle side wall and multi-core optical fiber pressure-bearing joint body 4 of sapphire glass 16
First sealing ring 15 enters left inside chamber 11 for preventing the external high pressure of right inner cavity 19 from measuring fluid 8.
Specifically, in the present embodiment, disclosing a kind of light formed based on collimating mirror and sapphire glass and sealing ring
Fine jointing, after transmission fiber 6 receives the optical signal of the external high pressure measurement fluid 8 measured at sapphire window 7, by the
After the right collimating mirror 17 of two fibre-optical splice 20 and sapphire glass 16, it is transmitted to by the reception optical fiber 3 that the first fibre-optical splice 12 connects
Measurement processing function is completed at spectral instrument 24 in left inside chamber 11.In measurement process, once it is pressed at sapphire window 7
Power is destroyed, and external test fluid 8 opening can enter right inner cavity 19 along this, by sapphire in multi-core optical fiber pressure-bearing joint body 4
The sealing structure that glass 16 and the first sealing ring 15 are formed prevents, and prevents external test fluid from entering left inside chamber 11, to protect
More expensive spectral instrument 24；
For improve blocking effect, be also equipped with corresponding sealing element in the connection of each component, specific structure as shown in Fig. 2,
If sapphire window 7 is damaged for some reason, external high pressure, which measures fluid 8, can enter right inner cavity 19, then external high pressure
Sapphire glass 16 can be reached by right collimating mirror 17 by measuring fluid 8, and sapphire glass 16 and the first sealing ring 15 can prevent outer
Portion's high-tension measurement fluid 8 enters left collimating mirror 13, and lock ring 14 and multi-core optical fiber pressure-bearing joint body 4 are connected through a screw thread, and compresses left
Sapphire glass 16 is limited in the hole of multi-core optical fiber pressure-bearing joint body 4, is mounted on multi-core optical fiber pressure-bearing joint by collimating mirror 13
The second sealing ring 5 between 4 excircle of body and enclosure interior can prevent external high pressure measurement fluid 8 along inner walls and more
The junction of core fibre pressure-bearing joint body 4 enters left inside chamber 11, and this programme can prevent completely external high pressure measurement fluid 8 to pass through
Gap enters the installation space of spectral instrument 24 between fibre circuit or component, to protect spectral instrument 24.
Multi-core optical fiber pressure-bearing joint body 4 is equipped with the second sealing ring 5, for preventing external test fluid 8 from entering left inside chamber
11；Sapphire glass 16 and the first sealing ring 15 are pressed into together in the left end stepped hole of multi-core optical fiber pressure-bearing joint body 4, left collimation
The end face of 13 one end of mirror is adjacent to sapphire glass 16, and lock ring 14, which is connected through a screw thread, is pressed into the first optical fiber for left collimating mirror 13
On connector 12；Right 17 one end of collimating mirror is mounted in the inner hole of 12 right end of the first fibre-optical splice, and passes through cover board 18 and screw
21 are fixed on multi-core optical fiber pressure-bearing joint body 4；Multi-core optical fiber pressure-bearing joint body 4 can install one or more groups of optical fiber simultaneously and connect
Head, wherein the first light connector 12 and the second light connector 20 are one group.
Multi-core optical fiber pressure-bearing joint body 4 and right collimating mirror 17, sapphire glass 16, left collimating mirror 13, lock ring 14, cover board 18
And screw 21 forms a whole, cover board 18 is fixed on 17 mirrors of right collimation on multi-core optical fiber pressure-bearing joint body 4.
The present invention is by taking a kind of petroleum device for subsurface measuring as an example, and bearing shell 2 is surrounded by external high pressure fluid 10, spectrometer
Device 24 and reception optical fiber 3 are in left inside chamber 11, and 6 sapphire window 7 of transmission fiber is in right inner cavity 19, multi-core optical fiber pressure-bearing joint body 4
Bearing shell 2 is divided into left inside chamber 11 and right inner cavity 19 is divided into two parts and as the intermediate transfer point of optical fiber optical signal, transmission
Optical fiber 6 receives the optical signal that external high pressure measures fluid 8 by sapphire glass 7, by right collimating mirror 17 by optical fiber optical signal
After sapphire glass 16, then by left collimating mirror 13 by reception optical fiber 3 the optical signal transmission of pressure external test fluid 8 extremely
Spectral instrument 24 completes measurement processing function.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (7)
1. a kind of optical fiber connects seal and pressure bearing connector, which is characterized in that including bearing shell (2), the bearing shell (2) is internal
It is divided into left inside chamber (11) and right inner cavity (19) two parts by multi-core optical fiber pressure-bearing joint body (4), is set in the left inside chamber (11)
It is equipped with spectral instrument (24) and reception optical fiber (3), the spectral instrument (24) is connected to multi-core optical fiber by reception optical fiber (3) and holds
On the first fibre-optical splice (12) of crimp head body (4), transmission fiber (6) and sapphire window are provided in the right inner cavity (19)
(7), one end of the transmission fiber (6) is connected on sapphire window (7), and the other end is connected to multi-core optical fiber pressure-bearing joint body
(4) on the second fibre-optical splice (20)；
Left collimating mirror (13) and right collimating mirror (17) are equipped in the multi-core optical fiber pressure-bearing joint body (4), in the left collimation
It is provided between mirror (13) and right collimating mirror (17) sapphire glass (16), the left collimating mirror (13) is fixed by lock ring (14)
It is connect in multi-core optical fiber pressure-bearing joint body (4) inner wall, and with the first fibre-optical splice (12), the right collimating mirror (17) passes through cover board
(18) it is fixed on multi-core optical fiber pressure-bearing joint body (4) inner wall with screw (21), and is connect with the second fibre-optical splice (20)；
The first sealing ring (15) are equipped between the sapphire glass (16) and left collimating mirror (13), for preventing external high pressure from surveying
It measures fluid (8) and enters left inside chamber (11) along right inner cavity (19).
2. a kind of optical fiber according to claim 1 connects seal and pressure bearing connector, it is characterised in that: the sapphire glass
(16) it is pressed into the left end stepped hole of multi-core optical fiber pressure-bearing joint body (4) together with the first sealing ring (15), the left collimating mirror
(13) end face of one end is adjacent to sapphire glass (16), is pressed into left collimating mirror (13) using threaded connection by lock ring (14)
On the first fibre-optical splice (12).
3. a kind of optical fiber according to claim 1 connects seal and pressure bearing connector, it is characterised in that: the transmission fiber (6)
The optical signal for receiving external high pressure measurement fluid (8) at the sapphire window (7), will after the right collimating mirror (17)
Optical fiber optical signal using the left collimating mirror (13) and passes through first fibre-optical splice by the sapphire glass (16)
(12) reception optical fiber (3) are transferred to, finally the optical signal transmission of external high pressure measurement fluid (8) to spectral instrument
(24), measurement processing function is completed.
4. a kind of optical fiber according to claim 1 connects seal and pressure bearing connector, it is characterised in that: the multi-core optical fiber pressure-bearing
The second sealing ring (5) are equipped between fitting body (4) and the bearing shell (2), it is left for preventing external test fluid (8) from entering
Inner cavity (11).
5. a kind of optical fiber according to claim 1 connects seal and pressure bearing connector, it is characterised in that: the right collimating mirror (17)
One end is mounted in the inner hole of multi-core optical fiber pressure-bearing joint body (4) right end, and is fixed on by cover board (18) with screw (21)
On multi-core optical fiber pressure-bearing joint body (4).
6. a kind of optical fiber according to claim 1 connects seal and pressure bearing connector, it is characterised in that: the multi-core optical fiber pressure-bearing
Fibre-optical splice in fitting body (4) is equipped with one or more groups of.
7. a kind of optical fiber according to claim 1 connects seal and pressure bearing connector, it is characterised in that: the multi-core optical fiber pressure-bearing
Left inside chamber (11) side of fitting body (4) is equipped with seal plug (1), and the seal plug (1) is sealed by third sealing ring (9)
Surface of shell in left inside chamber (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208488.5A CN108318972B (en) | 2018-03-14 | 2018-03-14 | A kind of optical fiber connection seal and pressure bearing connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208488.5A CN108318972B (en) | 2018-03-14 | 2018-03-14 | A kind of optical fiber connection seal and pressure bearing connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108318972A CN108318972A (en) | 2018-07-24 |
| CN108318972B true CN108318972B (en) | 2019-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810208488.5A Active CN108318972B (en) | 2018-03-14 | 2018-03-14 | A kind of optical fiber connection seal and pressure bearing connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108318972B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982842A (en) * | 2020-08-05 | 2020-11-24 | 北京宏源四方科技开发有限公司 | Fluid analysis nipple for petroleum logging instrument |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3248003A1 (en) * | 1982-12-24 | 1984-06-28 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Cable closure for optical-fibre joints |
| CN201196592Y (en) * | 2008-05-06 | 2009-02-18 | 中国科学院南海海洋研究所 | Underwater radiance probe with optical fiber |
| CN102042965A (en) * | 2010-11-18 | 2011-05-04 | 上海衡伟信息技术有限公司 | On-line broad-spectrum water quality analyzer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016116693A1 (en) * | 2016-09-07 | 2018-03-08 | Maschinenfabrik Rieter Ag | Garnbildungselement and spinneret for an air-spinning machine |
| CN206919907U (en) * | 2017-06-20 | 2018-01-23 | 中国人民解放军63729部队 | Hypogee Fiber Bragg Grating Sensor Array and its protector |
-
2018
- 2018-03-14 CN CN201810208488.5A patent/CN108318972B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3248003A1 (en) * | 1982-12-24 | 1984-06-28 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Cable closure for optical-fibre joints |
| CN201196592Y (en) * | 2008-05-06 | 2009-02-18 | 中国科学院南海海洋研究所 | Underwater radiance probe with optical fiber |
| CN102042965A (en) * | 2010-11-18 | 2011-05-04 | 上海衡伟信息技术有限公司 | On-line broad-spectrum water quality analyzer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108318972A (en) | 2018-07-24 |
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