CN209510302U - Underground optical cable distal tip signal processing module structure - Google Patents
Underground optical cable distal tip signal processing module structure Download PDFInfo
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- CN209510302U CN209510302U CN201821793629.6U CN201821793629U CN209510302U CN 209510302 U CN209510302 U CN 209510302U CN 201821793629 U CN201821793629 U CN 201821793629U CN 209510302 U CN209510302 U CN 209510302U
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- optical cable
- shell
- processing module
- signal processing
- distal tip
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Abstract
The utility model relates to a kind of underground optical cable distal tip signal processing module structures, the optical cable in shell is protruded into including shell, one end, the inner hollow and both ends open of shell, pedestal is equipped in one end of shell to be sealed to the end, the other end of shell is equipped with pressure cap to be sealed to the end, inside the housing, sealed chamber is formed between pedestal, pressure cap, fixed part is fixedly installed on pedestal, the fixed part is in sealed chamber, and the cable core that the optical cable protrudes into seal chamber is wrapped on fixed part.The utility model can carry out delustring processing to optical cable end and avoid the accuracy for influencing normally to measure to reduce optical cable end reflection signal, from scene it is easy to operate from the point of view of, by being wound to optical fiber connector, realize end delustring, to reduce optical cable end reflection signal, guarantee normal measurement.
Description
Technical field
The utility model relates to the underground optical cable distal tip signal processing module structures that a kind of pair of optical cable end carries out delustring.
Background technique
The temperature along fiber length, vibration (sound wave), stress can be carried out using the distributed sensing characteristic of optical cable
Etc. parameters measurement, can be with parameters such as the pressure of measurement sensor position, temperature using the fibre optical sensor of point type.Cause
Optical fiber and fibre optical sensor are placed into the pit shaft of oil/gas well by this, can be surveyed to all kinds of parameter distributions along pit shaft section
Amount, to obtain the situation of change of hole condition, underground equipment operating condition and oil and gas reservoir, and takes according to situation of change and arranges accordingly
It applies.If optical fiber connector is not processed, strong reflectance signal can be generated and influence normally to measure.
Summary of the invention
It is able to carry out in view of the above problems, the object of the present invention is to provide one kind and optical cable end is carried out at delustring
Reason, to reduce optical cable end reflection signal, avoids the underground optical cable distal tip signal processing module structure for influencing normally to measure.
The technical scheme for implementing the utility model is as follows
Underground optical cable distal tip signal processing module structure protrudes into the optical cable in shell, the inside of shell including shell, one end
Hollow and both ends open is equipped with pedestal in one end of shell to be sealed to the end, and the other end of shell is equipped with pressure cap
To be sealed to the end, sealed chamber is formed inside the housing, between pedestal, pressure cap, fixation is fixedly installed on pedestal
Portion, the fixed part are in sealed chamber, and the cable core that the optical cable protrudes into seal chamber is wrapped on fixed part.
Further, it is attached between the pedestal, pressure cap and shell using engagement thread.
Further, the gear part that gear is formed to the cable core being wrapped on fixed part is provided on the fixed part.
Further, the annular table with through-hole is formed inside the shell, and optical cable is passed through from through-hole, is equipped in through-hole
Cover the first metal sealing cutting ferrule on optical cable.
Further, the test shell of inner hollow is provided between the pressure cap and shell, test one end of shell with
Cage connection, the other end are connect with pressure cap, have test storehouse in test shell, are offered and are surveyed along the radial direction of test shell
The instrument connection of storehouse connection is tried, is equipped in instrument connection and the plug blocked is formed to instrument connection.
Further, the test shell end is equipped with the second metal sealing cutting ferrule covered on optical cable, tests Cang Chu
Between the first metal sealing cutting ferrule, the second hermetic collar.
Further, the optical cable is wrapped up using stainless-steel pipe.
Further, the instrument connection is the 1/16 " conical bolt hole of NPT.
Further, the optical cable protrudes into the cable core in seal chamber and is wound in the circle of fixed part 5 or more.
Using above-mentioned technical proposal, delustring processing can be carried out to optical cable end, to reduce optical cable end reflection signal,
Avoid the accuracy for influencing normally to measure, from scene it is easy to operate from the point of view of, by being wound to optical fiber connector, realize end
Delustring is held, to reduce optical cable end reflection signal, guarantees normal measurement.
Detailed description of the invention
Fig. 1 is one structural schematic diagram of the embodiments of the present invention；
Fig. 2 is two structural schematic diagram of the embodiments of the present invention；
In attached drawing, 1 is shell, and 2 be optical cable, and 3 be pedestal, and 4 be pressure cap, and 5 be sealed chamber, and 6 be fixed part, and 7 be sealing
Circle, 8 be gear part, and 9 be annular table, and 10 be the first metal sealing cutting ferrule, and 11 be test shell, and 12 be instrument connection, and 13 be second
Metal sealing cutting ferrule.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
The technical solution of the utility model embodiment is clearly and completely described in the attached drawing of type embodiment.Obviously, described
Embodiment is a part of the embodiment of the utility model, instead of all the embodiments.Based on described the utility model
Embodiment, those of ordinary skill in the art's every other embodiment obtained under the premise of being not necessarily to creative work, all belongs to
In the range of the utility model protection.
Embodiment one, as shown in Figure 1, underground optical cable distal tip signal processing module structure, including shell 1, one end protrude into
It is close to carry out to the end to be equipped with pedestal 3 in one end of shell for optical cable 2 in shell, the inner hollow and both ends open of shell
Envelope, the other end of shell are equipped with pressure cap 4 to be sealed to the end, form seal chamber inside the housing, between pedestal, pressure cap
Room 5 is fixedly installed fixed part 6 on pedestal, which is in sealed chamber, and the cable core that optical cable protrudes into seal chamber twines
It is wound on fixed part.
It in specific implementation, is attached between pedestal, pressure cap and shell using engagement thread, and in base outer wall and shell
It is sealed between wall using O-shaped sealing ring 7, pressure-resistant static seal is realized by the O-ring.It is provided on fixed part to winding
Cable core on fixed part forms the gear part 8 of gear, and the size of gear part is greater than fixed part, gear part, fixed part and pedestal
It the common fixed form such as can also weld using design is integrally formed and be fixed.Being formed inside the shell has through-hole
Annular table 9, optical cable is passed through from through-hole, and the first metal sealing cutting ferrule 10 covered on optical cable is equipped in through-hole.
Usual oil/gas well underground is all much the environment of high temperature and pressure high corrosion, and optical fiber itself is very fragile, needs additional
It can be just placed into pit shaft after protection.Therefore we using stainless-steel pipe package optical fiber by the way of, to optical fiber realize protection with
Sealing.Reliable encapsulation process is also carried out simultaneously for the end of stainless-steel pipe optical cable, it is high to avoid the high temperature in pit shaft
Press high corrosion liquid perhaps gas enter in optical cable from optical cable end cause optical fiber damage or leak to ground along cable interior
Face and generate security risk.Metal sealing pressure cap, hermetic collar and shell are successively inserted in stainless-steel pipe optical cable end, then
A part of stainless-steel pipe crust for getting rid of end exposes internal cable core；Cable core on Optical Fiber Winding fixed part and is twined
More than 5 circles, realize delustring processing, to eliminate reflection signal, cable core is adhered on fixed part by blend compounds water, then by shell and
Pedestal is tightened by screw thread.Then by the through-hole of hermetic collar push-in shell annular platform, seal pressure cap is screwed into shell,
Until tightening, then hermetic collar, which is pressurized, causes the deformation of stainless-steel pipe crust to form pressure-resistant sealing with hermetic collar.So far, outside
The inner space of shell forms the sealed chamber 5 of a sealing by the hermetic collar of O-ring and top on pedestal, and outer
The liquid or gas in portion realize isolation.
Embodiment two, as shown in Fig. 2, being provided with inside between pressure cap and shell on the basis of embodiment one
Hollow test shell 11 tests one end and the cage connection of shell, and the other end is connect with pressure cap, has in test shell and surveys
Storehouse is tried, optical cable passes through test storehouse, and the instrument connection 12 being connected to test storehouse is offered along the radial direction of test shell, is filled in instrument connection
Equipped with the plug for forming closure to instrument connection.
Test shell end is equipped with the second metal sealing cutting ferrule 13 covered on optical cable, and it is close that test storehouse is in the first metal
It seals between cutting ferrule, the second hermetic collar.Instrument connection is 1/16 " conical bolt hole of NPT, the structure of plug and the structure of conical bolt hole
It is adapted, to increase the leakproofness after plug assembly instrument connection.
For the ease of testing the sealing performance after metal ferrule installation before erecting bed module is gone into the well, when sealing test storehouse
After all being tightened in place with metal sealing pressure cap, sealing space is formed between two metal ferrules and stainless-steel pipe crust, can be passed through
" NPT pressurizing port is carried out suppressing test at the scene with hydraulic pump, tests the sealing performance of metal ferrule for the 1/16 of sealing test storehouse
Whether meet the requirements.If sealing performance is undesirable, sealing installation, Yi Mianmo can be re-started before module is gone into the well
To causing shaft bottom liquid or gas to leak into sealed cabin body due to poorly sealed behind underground under block, entire Fibre Optical Sensor is influenced
The normal work of system, or leak to ground along cable interior and generate security risk.
Claims (9)
1. underground optical cable distal tip signal processing module structure, the optical cable in shell is protruded into including shell, one end, in the inside of shell
Empty and both ends open, which is characterized in that be equipped with pedestal in one end of shell to be sealed to the end, the other end of shell fills
Equipped with pressure cap to be sealed to the end, sealed chamber is formed inside the housing, between pedestal, pressure cap,
Fixed part is fixedly installed on pedestal, which is in sealed chamber, and the optical cable protrudes into the cable in seal chamber
Core is wrapped on fixed part.
2. underground optical cable distal tip signal processing module structure as described in claim 1, which is characterized in that the pedestal, pressure cap
It is attached between shell using engagement thread.
3. underground optical cable distal tip signal processing module structure as described in claim 1, which is characterized in that set on the fixed part
It is equipped with to the gear part for being wrapped in cable core formation gear on fixed part.
4. the underground optical cable distal tip signal processing module structure as described in claims 1 or 2 or 3, which is characterized in that inside the shell
The annular table with through-hole is formed, optical cable is passed through from through-hole, and the first metal sealing covered on optical cable is equipped in through-hole
Cutting ferrule.
5. the underground optical cable distal tip signal processing module structure as described in claims 1 or 2 or 3, which is characterized in that the pressure cap
It is provided with the test shell of inner hollow between shell, tests one end and the cage connection of shell, the other end is connect with pressure cap,
There is test storehouse in test shell, offered along the radial direction of test shell and test the instrument connection that is connected to of storehouse, in instrument connection
It is equipped with and the plug blocked is formed to instrument connection.
6. underground optical cable distal tip signal processing module structure as claimed in claim 5, which is characterized in that the test shell ends
Portion is equipped with the second metal sealing cutting ferrule covered on optical cable, and test storehouse is in the first metal sealing cutting ferrule, the second hermetic collar
Between.
7. underground optical cable distal tip signal processing module structure as claimed in claim 5, which is characterized in that the optical cable is not using
Become rusty steel steel pipe package.
8. underground optical cable distal tip signal processing module structure as claimed in claim 5, which is characterized in that the instrument connection is 1/
16 " the conical bolt holes of NPT.
9. the underground optical cable distal tip signal processing module structure as described in any one of claim 1-3,6-8, which is characterized in that
The optical cable protrudes into the cable core in seal chamber and is wound in the circle of fixed part 5 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821793629.6U CN209510302U (en) | 2018-11-01 | 2018-11-01 | Underground optical cable distal tip signal processing module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821793629.6U CN209510302U (en) | 2018-11-01 | 2018-11-01 | Underground optical cable distal tip signal processing module structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209510302U true CN209510302U (en) | 2019-10-18 |
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ID=68191719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821793629.6U Active CN209510302U (en) | 2018-11-01 | 2018-11-01 | Underground optical cable distal tip signal processing module structure |
Country Status (1)
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| CN (1) | CN209510302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024073243A1 (en) * | 2022-09-30 | 2024-04-04 | Commscope Technologies Llc | Identification and testing of laid optical fiber cables |
-
2018
- 2018-11-01 CN CN201821793629.6U patent/CN209510302U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024073243A1 (en) * | 2022-09-30 | 2024-04-04 | Commscope Technologies Llc | Identification and testing of laid optical fiber cables |
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