CN207689050U - A kind of sensor module - Google Patents
A kind of sensor module Download PDFInfo
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- CN207689050U CN207689050U CN201721842592.7U CN201721842592U CN207689050U CN 207689050 U CN207689050 U CN 207689050U CN 201721842592 U CN201721842592 U CN 201721842592U CN 207689050 U CN207689050 U CN 207689050U
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- sensor
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- fixing piece
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- optic grating
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Abstract
The utility model discloses a kind of sensor modules, belong to Monitoring Pinpelines field.The sensor module includes：Fiber-optic grating sensor, front connector, rear connectors, preceding fixing piece, rear fixing piece.Wherein, front connector and rear connectors are for being sleeved on pipeline to be monitored.Preceding fixing piece setting offsets in front connector, and with the front end of fiber-optic grating sensor.Fixing piece is arranged on rear connectors afterwards, and, it is connect with the rear portion of fiber-optic grating sensor.Fiber-optic grating sensor is axially arranged on the top of pipeline to be monitored, and, the rear end of fiber-optic grating sensor is connected with optical cable.Sensor module provided by the utility model, without destroying the erosion resistant coating on pipeline outer wall, ensure that the corrosion resistance of pipeline when monitoring the stress variation of pipe surface.
Description
Technical field
The utility model is related to Monitoring Pinpelines field, more particularly to a kind of sensor module.
Background technology
Long oil and gas pipeline is generally laid in mountainous region, is vulnerable to geological disaster invasion, is deformed so as to cause pipeline,
Even damage.Therefore, in order to avoid Pipeline damage, it is very necessary to be periodically monitored to the stress variation of pipe surface.
The prior art is monitored the stress variation of pipe surface using multiple strain gauges.Specifically, to pipeline table
Before the stress variation in face is monitored, first the erosion resistant coating on pipeline outer wall is removed, then multiple strain gauges are sticked to the pipeline
On outer wall.Wherein, multiple strain gauges are connected by optical cable and the fiber Bragg grating (FBG) demodulator on ground, fiber Bragg grating (FBG) demodulator and monitoring
Host is electrically connected.When being monitored operation, the dependent variable information of pipe surface is obtained using multiple strain gauges, and by the strain
Amount information is transferred to fiber Bragg grating (FBG) demodulator by optical cable in the form of optical signal.Using fiber Bragg grating (FBG) demodulator by the dependent variable
Information is demodulated to available dependent variable data, and the dependent variable data transfer is passed through the monitoring to host, staff is monitored
Host is the stress variation data that pipe surface can be observed.
Designer has found that the existing technology has at least the following problems：
The prior art will destroy the erosion resistant coating on pipeline outer wall, even if complete when monitoring the stress variation of pipe surface
The erosion resistant coating of the pipeline is repaired at after monitoring results, also can greatly reduce the corrosion resistance of pipeline, is long distance pipeline
Safe operation has buried hidden danger.
Utility model content
The utility model embodiment provides a kind of sensor module, can solve above-mentioned technical problem.Specific technical solution
It is as follows：
The utility model embodiment provides a kind of sensor module, and the sensor module includes：Optical fiber grating sensing
Device, front connector, rear connectors, preceding fixing piece, rear fixing piece；
The front connector and the rear connectors are for being sleeved on pipeline to be monitored；
The preceding fixing piece setting is connect in the front connector, and with the front end of the fiber-optic grating sensor；
Fixing piece is arranged on connector in the rear after described, and, it is connect with the rear portion of the fiber-optic grating sensor；
The fiber-optic grating sensor is axially arranged on the top of the pipeline to be monitored, and, the fiber grating passes
The rear end of sensor is connected with optical cable.
In a kind of possible design, the fiber-optic grating sensor includes：Connecting rod, sensor body, tail optical fiber, spy
The sleeve of head, spring, open rearward end；
The connecting rod is axially displaceably set in the sensor body, and both ends respectively with the probe and institute
State tail optical fiber connection；
The tail optical fiber is located at the rear of the sensor body, for being connect with the optical cable；
The spring pocket is in the connecting rod between the sensor body and the probe；
The sleeve is sleeved on the outside of the spring and the probe, and, the lateral surface of the barrel forward end with it is described before
Fixing piece connects, and medial surface offsets with the probe；
After the end of the medial surface of the barrel forward end and the probe offsets, the spring is compressed to predeterminated position, institute
Rear fixing piece is stated to be fixedly set in the sensor body.
In a kind of possible design, the preceding fixing piece includes：First base, the limit being disposed on the first base
Position body；
The first base is arranged in the front connector；
The limit body with the lateral surface of the barrel forward end for connecting.
In a kind of possible design, the first base is to be detachably connected with the front connector.
In a kind of possible design, the rear fixing piece includes：Second base, end cap, fastener；
The second base setting is in the rear on connector；
The end cap is used to coordinate with the second base, clamps the sensor body；
The fastener is used to lock the second base and the end cap.
In a kind of possible design, the second base is to be detachably connected with the rear connectors.
In a kind of possible design, the front connector and the rear connectors are anchor ear.
In a kind of possible design, the quantity of fiber-optic grating sensor, the preceding fixing piece and the rear fixing piece is equal
It is 4-6；
Multiple preceding fixing pieces are circumferentially uniformly distributed on the outer wall of the front connector；
Multiple rear fixing pieces are circumferentially on the outer wall of uniformly distributed connector in the rear；
Multiple fiber-optic grating sensors are circumferentially uniformly distributed in the top of the pipeline.
In a kind of possible design, the distance between the front connector and the rear connectors are the fiber grating
The 1/2-3/4 of sensor length.
The advantageous effect brought of technical solution that the utility model embodiment provides is：
The sensor module that the utility model embodiment provides by the way that preceding fixing piece and rear fixing piece is arranged, and makes preceding solid
The front end for determining part and fiber-optic grating sensor connects, and the rear portion of rear fixing piece and fiber-optic grating sensor connects, and realizes to light
The fixation of fiber grating sensor.By the way that front connector and rear connectors are arranged on pipeline to be monitored, and make front connector with after
Connector is sleeved on pipeline to be monitored, while preceding fixing piece being arranged in front connector, and rear fixing piece is arranged in rear company
On fitting, it is ensured that the stability of preceding fixing piece and rear fixing piece on pipeline to be monitored, so that fiber-optic grating sensor exists
It is capable of the stress variation on accurate induction pipe surface during subsequent monitoring results.As it can be seen that the utility model embodiment provides
Sensor module monitor pipe surface stress variation when, without destroying the erosion resistant coating on pipeline outer wall, ensure that pipeline
Corrosion resistance.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the sensor module that the utility model embodiment provides；
Fig. 2 is scheme of installation of the rear fixing piece of the utility model embodiment offer on rear connectors；
Fig. 3 is the front view for the rear fixing piece that the utility model embodiment provides；
Fig. 4 is the vertical view for the rear fixing piece that the utility model embodiment provides；
Fig. 5 is the front view for the preceding fixing piece that the utility model embodiment provides；
Fig. 6 is the schematic cross-section for the limit body that the utility model embodiment provides.
Reference numeral indicates respectively：
1 fiber-optic grating sensor,
101 sensor bodies,
102 tail optical fibers,
103 probes,
104 springs,
105 sleeves,
2 front connectors,
3 rear connectors,
Fixing piece before 4,
401 first bases,
402 limit bodies,
Fixing piece after 5,
501 second bases,
502 end caps,
503 fasteners,
M pipelines to be monitored.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provides a kind of sensor module, and as shown in Fig. 1, which includes：Light
Fiber grating sensor 1, front connector 2, rear connectors 3, preceding fixing piece 4, rear fixing piece 5.Wherein, front connector 2 and rear connection
Part 3 is for being sleeved on pipeline M to be monitored.Preceding fixing piece 4 be arranged in front connector 2, and with before fiber-optic grating sensor 1
End connection.Fixing piece 5 is arranged on rear connectors 3 afterwards, and, it is connect with the rear portion of fiber-optic grating sensor 1.Optical fiber grating sensing
Device 1 is axially arranged on the top of pipeline M to be monitored, and, the rear end of fiber-optic grating sensor 1 is connected with optical cable.
When mounted, front connector 2 and rear connectors 3 are sleeved on for the sensor module that the utility model embodiment provides
On pipeline M to be monitored, and the rear fixing piece 5 on rear connectors 3 is fixedly set in the rear portion of fiber-optic grating sensor 1, simultaneously
The front end of fiber-optic grating sensor 1 is set to offset with the preceding fixing piece 4 in front connector 2, rear end is connect with optical cable.It completes to install
Afterwards, which is embedded in together with pipeline M to be monitored in mountainous region.
When the stress variation to pipe surface is monitored, if pipeline M to be monitored deforms, optical fiber light
The front end of gate sensor 1 can then sense the dependent variable information on the surfaces pipeline M to be monitored, and by the dependent variable information by with
The optical cable of its rear end connection is transferred to fiber Bragg grating (FBG) demodulator in the form of optical signal.Using fiber Bragg grating (FBG) demodulator by the strain
Amount information is demodulated to available dependent variable data, and the dependent variable data transfer is passed through the prison to host, staff is monitored
The stress variation data of pipe surface can be obtained by surveying host.
The sensor module that the utility model embodiment provides, by the preceding fixing piece 4 of setting and rear fixing piece 5, and before making
Fixing piece 4 is connect with the front end of fiber-optic grating sensor 1, and rear fixing piece 5 is connect with the rear portion of fiber-optic grating sensor 1, is realized
Fixation to fiber-optic grating sensor 1.By the way that front connector 2 and rear connectors 3 are arranged on pipeline M to be monitored, and before making
Connector 2 and rear connectors 3 are sleeved on pipeline M to be monitored, while preceding fixing piece 4 being arranged in front connector 2, solid by after
Determine part 5 to be arranged on rear connectors 3, it is ensured that the stability of preceding fixing piece 4 and rear fixing piece 5 on pipeline M to be monitored, with
Just fiber-optic grating sensor is capable of the stress variation on accurate induction pipe surface during subsequent monitoring results.As it can be seen that this
The sensor module that utility model embodiment provides is when monitoring the stress variation of pipe surface, without destroying on pipeline outer wall
Erosion resistant coating ensure that the corrosion resistance of pipeline.
In the utility model embodiment, as shown in Fig. 1, fiber-optic grating sensor 1 includes：Connecting rod, sensor sheet
Body 101, tail optical fiber 102, probe 103, spring 104, sleeve 105.Wherein, connecting rod is axially displaceably set in sensor body
In 101, and both ends are connect with probe 103 and tail optical fiber 102 respectively.Tail optical fiber 102 is located at the rear of sensor body 101, for
Optical cable connects.Spring 104 is sleeved in the connecting rod between sensor body 101 and probe 103.Sleeve 105 is sleeved on 104 He of spring
The outside of probe 103, and, the lateral surface of 105 front end of sleeve is connect with preceding fixing piece 4, and medial surface offsets with probe 103.Sleeve
After the end of the medial surface of 105 front ends and probe 103 offsets, compressed spring 104 to predeterminated position, rear fixing piece 5 fixes suit
In sensor body 101.
Spring 104 is compressed to predeterminated position after offseting due to the medial surface of 105 front end of sleeve and the end of probe 103
(even if spring 104 is in and is compacted and upholds between two states), and rear fixing piece 5 is fixedly set in sensor body 101
On.Therefore, if with rear connectors 3 on pipeline M to be monitored due to the variation of pipe surface stress axis occurs for front connector 2
To shaking, or even axial movement, then preceding fixing piece 4 can be made to coordinate with rear fixing piece 5 and squeeze or discharge probe 103.At this point, spring
104 occur flexible, and the stress that probe 103 is sensed changes, the stress variation after transmission from one channel to another connecting rod and tail optical fiber 102,
Fiber Bragg grating (FBG) demodulator is transferred in the form of optical signal by optical cable.The pressure change is tuned into using fiber Bragg grating (FBG) demodulator
Available dependent variable data, and the dependent variable data transfer can be obtained to host, staff is monitored by the monitoring host
Take the stress variation data of pipe surface.
By being as above arranged, make front connector 2 that axial shaking or even axis occur on pipeline M to be monitored with rear connectors 3
To when movement, probe 103 can also be therewith axially moved by spring 104, avoid popping one's head in due to suffered extruding force
It is excessive and be damaged.Also, from the foregoing, it can be seen that the fiber-optic grating sensor 1 is simple in structure, and obtaining answering for pipe surface
It is easy to operate when power change information.It is sleeved on the outer of spring 104 and probe 103 by being arranged sleeve 105, and by sleeve 105
Portion realizes the protection to spring 104 and probe 103, both avoids being damaged into mountainous region being buried, or even influence monitoring
Operation is smoothed out.
Wherein, " medial surface and lateral surface of front end " can be understood as：The trailing flank and front side of plugging plate before sleeve 105
Face.
In the utility model embodiment, as shown in attached drawing 1 and attached drawing 5, preceding fixing piece 4 includes：First base 401 is set
Set the limit body 402 in first base 401.Wherein, first base 401 is arranged in front connector 2；Limit body 402 is used for
It is connect with the lateral surface of 105 front end of sleeve.
By the way that so set, while fixing piece before ensuring 4 can be fixed in front connector 2, itself and set can be made
The lateral surface of 105 front ends of cylinder offsets, not only easy for installation, additionally it is possible to cost-effective.
Wherein, limit body 402 can with 401 vertical connection of first base, with the operation effectiveness of fixing piece before raising 4.Tool
Body, limit body 402 can be connect with the end vertical of first base 401, vertical with the middle part of first base 401 can also be connected
It connects, as long as ensureing that limit body 402 can be connect with the lateral surface of 105 front end of sleeve.
The structure of first base 401 can be a variety of, for example, it can be arc panel body, bar shaped plate body etc., as long as
Ensure that first base 401 can be fixed in front connector 2.The structure of limit body 402 can be a variety of, for example,
It can be square plate body, bar shaped plate body etc., as long as ensureing that limit body 402 can offset i.e. with the lateral surface of 105 front end of sleeve
It can.
Further, in order to ensure that limit body 402 connect fastening with sleeve 105, at the same it is easy to disassemble, it can be by limit body
402 are set as being detachably connected with sleeve 105.Specifically, can internal thread be set in the front end of limit body 402 and sleeve 105
Hole, and use bolt compatible with the internal thread hole connects the two.Alternatively, card slot (ginseng is arranged on limit body 402
Add attached drawing 6), and internal thread hole is set in the front end of sleeve 105, the two is connect using bolt compatible with the internal thread hole
Get up, at this point, the side wall of bolt head and limit body 402 offsets.
In order to ensure that first base 401 connect fastening with front connector 2, at the same it is easy to disassemble, by first base 401 with before
Connector 2 is set as being detachably connected.It, can be by the connection of first base 401 and front connector 2 for the ease of processing and installing
Mode is set as identical as the connection type of above-mentioned limit body 402 and sleeve 105, and the structure of first base 401 is also provided with
It is identical as limit body 402.
In the utility model embodiment, as shown in attached drawing 3 and attached drawing 4, rear fixing piece 5 includes：Second base 501, end
Lid 502, fastener 503.Wherein, second base 501 is arranged on rear connectors 3.End cap 502 with second base 501 for matching
It closes, clamps sensor body 101.Fastener 503 is for locking second base 501 and end cap 502.
When installation, sensor body 101 is placed in second base 501, and end cap 502 is sleeved on the sensor body
On 101, second base 501 and end cap 502 are locked using fastener 503, second base 501 is made to be matched for clamping tightly with end cap 502
Sensor body 101.
Based on above-mentioned, the rear fixing piece 5 is simple in structure, and cost is relatively low, is easily installed, while may be implemented to sensor sheet
The fixation of body 101.
Wherein, the structure of second base 501 can be a variety of, for example, it can be arc panel body, bar shaped plate body
Deng as long as ensureing that second base 501 can be fixed on rear connectors 3.
Wherein, the structure of fastener 503 can be a variety of, for example, it can be bolt, pin etc., as long as can
End cap 502 is fixed in second base 501.
In order to ensure that second base 501 connect fastening with rear connectors 3, at the same it is easy to disassemble, it can be by second base 501
It is set as being detachably connected with rear connectors 3.Specifically, it can be provided in second base 501 and rear connectors 3 in multiple
Threaded hole, and connected the two using multiple bolts compatible with the internal thread hole.
In order to ensure that front connector 2 and rear connectors 3 can be securely sleeved on pipeline M to be monitored, while convenient for tearing open
It unloads, front connector 2 and rear connectors 3 can be set to anchor ear (referring to attached drawing 2).
Wherein, anchor ear is common for this field, and those skilled in the art can be obtained by purchased in market, for example, its
It can be the semicircle anchor ear that Nantong Hong Zhi communication equipments Co., Ltd produces and sells.
In order to improve the monitoring effect changed to tubing surface pressure, by fiber-optic grating sensor 1, preceding fixing piece 4 and after
The quantity setting of fixing piece 5 is 4-6.Multiple preceding fixing pieces 4 are circumferentially uniformly distributed on the outer wall of front connector 2.
Fixing piece 5 is circumferentially uniformly distributed on the outer wall of rear connectors 3 after multiple.Multiple fiber-optic grating sensors 1 are circumferentially uniform
It is laid in the top of pipeline M.It is understood that multiple fiber-optic grating sensors 1 are set around pipeline M to be monitored, it can
To be monitored from multi-faceted to tubing surface pressure variation, and then improve the accuracy to tubing surface pressure variation monitoring.
It in order to provide enough telescopic spaces to spring 104, is moved axially convenient for probe 103, while guarantee pair
The distance between front connector 2 and rear connectors 3 can be optical fiber grating sensing by the monitoring effect of tubing surface pressure variation
The 1/2-3/4 (such as 7/12,2/3) of 1 length of device.
Wherein, " 1 length of fiber-optic grating sensor " refers to：Sensor body 101, tail optical fiber 102, probe 103, spring
104, the total length of connecting rod.
The above is only the preferred embodiment of the present invention, the protection domain being not intended to limit the utility model,
Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in this reality
Within novel protection domain.
Claims (9)
1. a kind of sensor module, which is characterized in that the sensor module includes：Fiber-optic grating sensor (1), front connector
(2), rear connectors (3), preceding fixing piece (4), rear fixing piece (5)；
The front connector (2) and the rear connectors (3) are for being sleeved on pipeline to be monitored (M)；
The preceding fixing piece (4) is arranged in the front connector (2), and connects with the front end of the fiber-optic grating sensor (1)
It connects；
Fixing piece (5) is arranged on connector (3) in the rear after described, and, connect with the rear portion of the fiber-optic grating sensor (1)
It connects；
The fiber-optic grating sensor (1) is axially arranged on the top of the pipeline to be monitored (M), and, the fiber grating
The rear end of sensor (1) is connected with optical cable.
2. sensor module according to claim 1, which is characterized in that the fiber-optic grating sensor (1) includes：Connection
The sleeve (105) of bar, sensor body (101), tail optical fiber (102), probe (103), spring (104), open rearward end；
The connecting rod is axially displaceably set in the sensor body (101), and both ends respectively with the probe
(103) it is connected with the tail optical fiber (102)；
The tail optical fiber (102) is located at the rear of the sensor body (101), for being connect with the optical cable；
The spring (104) is sleeved in the connecting rod between the sensor body (101) and the probe (103)；
The sleeve (105) is sleeved on the outside of the spring (104) and the probe (103), and, sleeve (105) front end
Lateral surface connect with the preceding fixing piece (4), medial surface offsets with the probe (103)；
After the end of the medial surface of sleeve (105) front end and the probe (103) offsets, the spring (104) is compressed extremely
Predeterminated position, the rear fixing piece (5) are fixedly set in the sensor body (101).
3. sensor module according to claim 2, which is characterized in that the preceding fixing piece (4) includes：First base
(401), the limit body (402) being arranged in the first base (401)；
The first base (401) is arranged in the front connector (2)；
The limit body (402) with the lateral surface of the sleeve (105) front end for connecting.
4. sensor module according to claim 3, which is characterized in that the first base (401) and the preceding connection
Part (2) is to be detachably connected.
5. sensor module according to claim 2, which is characterized in that fixing piece (5) includes after described：Second base
(501), end cap (502), fastener (503)；
Second base (501) setting is in the rear on connector (3)；
The end cap (502) is used to coordinate with the second base (501), clamps the sensor body (101)；
The fastener (503) is used to lock the second base (501) and the end cap (502).
6. sensor module according to claim 5, which is characterized in that the second base (501) with it is described after connect
Part (3) is to be detachably connected.
7. sensor module according to claim 1, which is characterized in that the front connector (2) and the rear connectors
(3) it is anchor ear.
8. sensor module according to claim 1, which is characterized in that fiber-optic grating sensor (1), the preceding fixing piece
(4) and the quantity of the rear fixing piece (5) is 4-6；
Multiple preceding fixing pieces (4) are circumferentially uniformly distributed on the outer wall of the front connector (2)；
Multiple rear fixing pieces (5) are circumferentially on the outer wall of uniformly distributed connector in the rear (3)；
Multiple fiber-optic grating sensors (1) are circumferentially uniformly distributed in the top of the pipeline (M).
9. sensor module according to claim 1, which is characterized in that the front connector (2) and the rear connectors
The distance between (3) it is the 1/2-3/4 of the fiber-optic grating sensor (1) length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721842592.7U CN207689050U (en) | 2017-12-26 | 2017-12-26 | A kind of sensor module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721842592.7U CN207689050U (en) | 2017-12-26 | 2017-12-26 | A kind of sensor module |
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| Publication Number | Publication Date |
|---|---|
| CN207689050U true CN207689050U (en) | 2018-08-03 |
Family
ID=62995298
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| CN201721842592.7U Active CN207689050U (en) | 2017-12-26 | 2017-12-26 | A kind of sensor module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114803190A (en) * | 2021-01-21 | 2022-07-29 | 中国石油天然气集团有限公司 | Included angle monitoring device, system and method |
-
2017
- 2017-12-26 CN CN201721842592.7U patent/CN207689050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114803190A (en) * | 2021-01-21 | 2022-07-29 | 中国石油天然气集团有限公司 | Included angle monitoring device, system and method |
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