CN208595985U - High-sensitivity optical fiber grating temperature sensing device for pipeline thermometric - Google Patents
High-sensitivity optical fiber grating temperature sensing device for pipeline thermometric Download PDFInfo
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- CN208595985U CN208595985U CN201821272624.9U CN201821272624U CN208595985U CN 208595985 U CN208595985 U CN 208595985U CN 201821272624 U CN201821272624 U CN 201821272624U CN 208595985 U CN208595985 U CN 208595985U
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- fiber grating
- pipeline
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Abstract
It include mounting base, patch type temperature sensor and end cap the utility model discloses a kind of high-sensitivity optical fiber grating temperature sensing device for pipeline thermometric；The bottom of the mounting base is fitted on the tube wall of pipeline, and the mounting base upper fixing end lid, the patch type temperature sensor is encapsulated between the end cap and the mounting base；The patch type temperature sensor includes pedestal, groove is provided on pedestal, the fixed steel pipe in the both ends of groove, groove is interior to place fiber grating, and the both ends of the fiber grating are fixed in two steel pipes；Outlet is equipped with beside two steel pipes, the tail optical fiber at fiber grating both ends is drawn by outlet, and tail optical fiber is connect after drawing with optical fibre interrogation instrument.The utility model is suitable for the adverse circumstances of pipeline open air.
Description
Technical field
The utility model relates to fiber grating temperature sensor more particularly to a kind of highly sensitive light for pipeline thermometric
Fine grating temperature sensing device.
Background technique
Optical fiber sensing technology has obtained development at full speed, is the new force of field of sensing technologies.Fibre Optical Sensor is especially suitable
It shares in field of temperature measurement, fibre optic temperature sensor high sensitivity, encapsulation is convenient, and has had corresponding national standard.And
Fibre optical sensor is passive sensor, and the distributed measurement of long range may be implemented, these are all them compared to electrical sensor
Unrivaled advantage for pipeline.
Pipeline is always the important force of energy transport and the transport of other gases, but pipeline transportation takes quarter and guarantees temperature
The monitoring of the physical parameters such as field and pressure is spent, once the oil temperature or temperature in pipeline are lower than setting value, it is difficult to will cause transport
Etc. more serious consequence.The temperature for further testing pipeline internal medium by test tube road surface temperature is a kind of contactless
Temp measuring method, it will not destroy the structure of pipeline, not will cause the serious consequences such as pipe leakage, be a kind of good thermometric side
Method.
Fibre optic temperature sensor can be encapsulated as enhanced sensitivity formula structure, and the precision that measurement may be implemented is very high.Conduit running
Environment is generally all relatively more severe, so must be to fibre optical sensor with certain protection.Outdoors in environment, only adequately protect
Shield fibre optical sensor just can guarantee its normal operation.
Utility model content
The purpose of this utility model is to make full use of the advantage of fiber grating sensing technology, is designed a kind of for pipeline survey
The high-sensitivity optical fibre grating temperature sensor of temperature, and it is used for the thermometric of pipe wall.
Used technical solution is the utility model in order to reach the goal:
A kind of high-sensitivity optical fiber grating temperature sensing device for pipeline thermometric, including mounting base, patch type are provided
Temperature sensor and end cap；
The bottom of the mounting base is fitted on the tube wall of pipeline, the mounting base upper fixing end lid, the patch type temperature
Degree sensor is encapsulated between the end cap and the mounting base；
The patch type temperature sensor includes pedestal, is provided with groove on pedestal, the fixed steel pipe in the both ends of groove, in groove
Fiber grating is placed, the both ends of the fiber grating are fixed in two steel pipes；Outlet, optical fiber are equipped with beside two steel pipes
The tail optical fiber at grating both ends is drawn by outlet, and tail optical fiber is connect after drawing with optical fibre interrogation instrument.
Above-mentioned technical proposal is connect, the pedestal is equipped with screw hole, and pedestal is fixed by screws in the mounting base, and spiral shell
Screw thread glue is wiped at silk.
Above-mentioned technical proposal is connect, the bottom plate of the mounting base is alloy material bottom plate.
Connect above-mentioned technical proposal, filled silicon rubber between the end cap and the mounting base.
Above-mentioned technical proposal is connect, is fixedly connected between the end cap and the mounting base by the screw of surrounding.
Above-mentioned technical proposal is connect, the steel pipe is fixed on the base by welding.
Above-mentioned technical proposal is connect, the two sides up and down of the mounting base are equipped with the leg of arc, and two legs pass through argon arc
The method of weldering is welded in tube wall surface.
Above-mentioned technical proposal is connect, patch type temperature sensor is sensitizing type temperature sensor.
The beneficial effect that the utility model generates is: Non-contact optical fiber temperature of the utility model for pipeline thermometric passes
Sensor arrangement, mounting base can be bonded with tube wall well, good heat conduction effect.Mounting base bottom plate is fitted on tube wall, installation jail
Gu facilitate again, then the temperature sensor of patch type is sealed in mounting base again with mounting base substrate is fixed on, very suitable
It shares in the adverse circumstances of pipeline open air.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the high-sensitivity optical fiber grating temperature sensing device structure for pipeline thermometric of the utility model embodiment
Schematic diagram.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
As shown in Figure 1, the high-sensitivity optical fiber grating temperature sensing device for pipeline thermometric of the utility model includes
Mounting base 1, patch type temperature sensor 8 and end cap 9；
The bottom of mounting base 1 is fitted on the tube wall of pipeline, 1 upper fixing end lid of mounting base, 8 envelope of patch type temperature sensor
Between the end cap and the mounting base 1；
As shown in Figure 1, patch type temperature sensor 8 includes pedestal 6, groove 10 is provided on pedestal 6, the both ends of groove 10 are solid
Determine steel pipe 7, places fiber grating 11 in groove 10, the both ends of the fiber grating 11 are fixed in two steel pipes 7；Two steel pipes 7
Side be equipped with outlet 4, the tail optical fiber 3 at fiber grating both ends is drawn by outlet 4, tail optical fiber 3 draw after with optical fiber solution
Adjust instrument connection.Steel pipe 7 can be fixed on by welding on pedestal 6.
The general structure of pedestal 6 is primarily used to place the grating opened in advance for convenience of the strip of linear cutter, should
Structure facilitates processing, and is convenient for the production of sensor, is a kind of structure that comparison is reasonable and economic.
The utility model sensor above structure is thinner compared to other ceramic paster formula temperature sensors,
Also more rationally, sensitivity is higher, and temperature measurement accuracy is more quasi-.The effect of the steel pipe at both ends is to facilitate for wearing optical fiber and use heat-shrink tube
Optical fiber is protected.
Further, the pedestal 6 is equipped with screw hole, and pedestal 6 is fixed by screws in the mounting base 1, and screw
Place is wiped with screw thread glue, prevents its loosening.
Sensitizing type temperature sensor can be selected in patch type temperature sensor 8
The bottom plate of mounting base 1 can be rectangle, and very thin thickness can be installed around tube wall, therefore mounting base 1 can be very good
It is fitted closely with tube wall, good heat conduction effect.Alloy material can be selected in the material of mounting base bottom plate, and thermal coefficient is fine, heat transfer
Efficiency it is very high.The thickness of patch type temperature sensor 8 is also very thin, it is possible to it is fitted on the bottom plate of mounting base 1 well,
So heat transfer efficiency between the two is also very high.
In the embodiments of the present invention, filled silicon rubber between end cap 2 and mounting base 1, it is ensured that sensor it is closed
Property, prevent it from heat exchange occurs with extraneous temperature field.
Further, the surrounding of end cap 2 and mounting base 1 is equipped with screw hole, solid by screw between end cap 2 and mounting base 1
Fixed connection.
As shown in Figure 1, the two sides up and down of mounting base 1 are equipped with the leg 5 of arc, the side that two legs 5 pass through argon arc welding
Method is welded in tube wall surface, mounting base 1 can be made to be preferably bonded with tube wall by the leg 5 of arc.
The specific manufacturing process of the sensor device are as follows: mounting base 1 is mounted on tube wall by the method welded, and is allowed
It adequately contacts tube wall, and then the temperature sensor of patch type 8 is put into the groove 10 in mounting base, solid by screw
It is fixed, end cap 2 is sealed up, by temperature sensor seal protection within mounting base.Then the tail optical fiber 3 of optical fiber first passes through the tail of sensor
Then fine outlet 4 is come out by the outlet being arranged in mounting base 1, the tail optical fiber come out is connected to optical fibre interrogation instrument,
The temperature real-time monitoring to tube wall is realized to the wavelength real-time monitoring of grating.The temperature sensor of patch type is above-mentioned non-contacting
The temperature of method test pipeline internal medium.
Also end cap 2 can be spread silicon rubber above, then be screwed end cap 2 (end cap 2 is equipped with threaded hole 9)
In mounting base 1.Then equal silicon rubber parch, and guarantee the leakproofness of mounting base 1, thus fully ensure that pipe temperature scatter and disappear and
Temperature field it is constant, also fully ensured that safety of the sensor outdoors in environment, not will receive the influence of extraneous adverse circumstances.
To sum up, the Non-contact optical fiber temp sensor device for pipeline thermometric of the utility model embodiment, installation
Seat can be bonded with tube wall well, good heat conduction effect.Mounting base bottom plate is welded on tube wall by the method welded, installation jail
Gu facilitate again, the temperature sensor of patch type is screwed in mounting base substrate, is then sealed in mounting base again,
It is well suited for the adverse circumstances for pipeline open air.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (8)
1. a kind of high-sensitivity optical fiber grating temperature sensing device for pipeline thermometric, which is characterized in that including mounting base, patch
Chip temperature sensor and end cap；
The bottom of the mounting base is fitted on the tube wall of pipeline, the mounting base upper fixing end lid, and the patch type temperature passes
Sensor is encapsulated between the end cap and the mounting base；
The patch type temperature sensor includes pedestal, groove is provided on pedestal, the fixed steel pipe in the both ends of groove, groove is interior to be placed
Fiber grating, the both ends of the fiber grating are fixed in two steel pipes；Outlet, fiber grating are equipped with beside two steel pipes
The tail optical fiber at both ends is drawn by outlet, and tail optical fiber is connect after drawing with optical fibre interrogation instrument.
2. the high-sensitivity optical fiber grating temperature sensing device according to claim 1 for pipeline thermometric, feature exist
In the pedestal is equipped with screw hole, and pedestal is fixed by screws in the mounting base, and is wiped with screw thread glue at screw.
3. the high-sensitivity optical fiber grating temperature sensing device according to claim 1 for pipeline thermometric, feature exist
In the bottom plate of the mounting base is alloy material bottom plate.
4. the high-sensitivity optical fiber grating temperature sensing device according to claim 1 for pipeline thermometric, feature exist
In filled silicon rubber between the end cap and the mounting base.
5. the high-sensitivity optical fiber grating temperature sensing device according to claim 1 for pipeline thermometric, feature exist
In being fixedly connected between the end cap and the mounting base by the screw of surrounding.
6. the high-sensitivity optical fiber grating temperature sensing device according to claim 1 for pipeline thermometric, feature exist
In the steel pipe is fixed on the base by welding.
7. the high-sensitivity optical fiber grating temperature sensing device according to claim 1 for pipeline thermometric, feature exist
In the two sides up and down of the mounting base are equipped with the leg of arc, and two legs are welded in tube wall surface by the method for argon arc welding.
8. being filled described in any one of -7 for the high-sensitivity optical fiber grating temperature sensing of pipeline thermometric according to claim 1
It sets, which is characterized in that patch type temperature sensor is sensitizing type temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272624.9U CN208595985U (en) | 2018-08-08 | 2018-08-08 | High-sensitivity optical fiber grating temperature sensing device for pipeline thermometric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272624.9U CN208595985U (en) | 2018-08-08 | 2018-08-08 | High-sensitivity optical fiber grating temperature sensing device for pipeline thermometric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595985U true CN208595985U (en) | 2019-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821272624.9U Active CN208595985U (en) | 2018-08-08 | 2018-08-08 | High-sensitivity optical fiber grating temperature sensing device for pipeline thermometric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208595985U (en) |
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2018
- 2018-08-08 CN CN201821272624.9U patent/CN208595985U/en active Active
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