CN202770556U - Oil storage tank temperature monitoring device based on distributed optical fiber temperature sensor - Google Patents
Oil storage tank temperature monitoring device based on distributed optical fiber temperature sensor Download PDFInfo
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- CN202770556U CN202770556U CN201220472064.8U CN201220472064U CN202770556U CN 202770556 U CN202770556 U CN 202770556U CN 201220472064 U CN201220472064 U CN 201220472064U CN 202770556 U CN202770556 U CN 202770556U
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Abstract
The utility model relates to a distributed optical fiber temperature measurement device, and specifically discloses an oil storage tank temperature monitoring device based on a distributed optical fiber temperature sensor, which is especially suitable for the oil field industry. The oil storage tank temperature monitoring device comprises an industrial personal computer, a semiconductor laser, a WDM (Wavelength Division Multiplexing) beam split filter module, a photoelectric receiving module, a data acquisition module and a sensing optical fiber. The oil storage tank temperature monitoring device is characterized in that the semiconductor laser is connected with the sensing optical fiber via the WDM beam split filter module, the input end of the photoelectric receiving module is connected with the WDM beam split filter module, the input end of the data acquisition module is connected with the output end of the photoelectric receiving module, and the output end of the data acquisition module and the semiconductor laser are respectively connected with the industrial personal computer. The oil storage tank temperature monitoring device has the advantages of being resistant to electromagnetic interference, flame-proof, anti-explosion and anti-corrosion, and so on, and can work in the severe environments, such as high-voltage environment, high-current environment and explosion environment.
Description
Technical field
The utility model relates to distributed fiber temperature measuring device, specifically a kind of storage tank device for detecting temperature based on distributed optical fiber temperature sensor that is specially adapted to oilfield applications.
Background technology
Oil is as a kind of important energy source, can be described as the blood of modern economy, along with the quickening of city process, China is the big producing country of oil, also is consumption big country, so, no matter be manufacturing enterprise or the sale enterprise of oil, all in places such as oil field, harbours, set up large-scale various storage tank, but oil itself just has low, inflammable, the explosive characteristics of burning-point, so its condition of storage is especially strict.
Storage tank in use, the temperature variation of metal can outside surface has played vital effect to the safety of storage tank, especially under summer high temperature environment, the temperature of metal can sharply raise, in case contact with crude oil, very easily cause fire, even cause the tank body blast, cause great security incident and casualties; Therefore, imperative to the temperature Real-Time Monitoring of tank body outside surface, to guarantee the safe operation of storage tank.
Summary of the invention
The utility model is for the potential safety hazard and the demand that exist in the existing oil storing process, propose a kind of rational in infrastructure, thermometric is accurate, can Real-Time Monitoring storage tank external temperature, and effectively guarantee the storage tank device for detecting temperature based on distributed optical fiber temperature sensor of oil storage security.
The utility model can reach by following measures:
A kind of storage tank device for detecting temperature based on distributed optical fiber temperature sensor, comprise industrial computer, semiconductor laser, WDM light splitting filtration module, photoelectricity receiver module, data acquisition module and sensor fibre, it is characterized in that semiconductor laser is connected with sensor fibre through WDM light splitting filtration module, the input end of photoelectricity receiver module is connected with WDM light splitting filtration module, the input end of data acquisition module is connected with the output terminal of photoelectricity receiver module, and the output terminal of data acquisition module and semiconductor laser are connected with industrial computer respectively.
Be provided with two photoelectricity receiving circuits that are connected with WDM light splitting filtration module respectively in the photoelectricity receiver module described in the utility model, two photoelectricity receiving circuits are respectively applied to receive and return from sensor fibre, and the dorsad stokes light of processing through WDM light splitting filtration module and anti-Stokes light dorsad, and give data acquisition module with it.
The utility model starts semiconductor laser work by the periodic pulse signal that is sent by industrial computer control in use, make it send pulse power light, the pulsed optical signals process WDM light splitting filtration module that sends is in sensor fibre, sensor fibre is then placed oneself in the midst of in the temperature field to be measured, in order to improve the thermometric accuracy, sensor fibre can be wrapped on the tank body to be measured in use, the light pulse of in sensor fibre, propagating, can be because the temperature effect of each location point causes backscattering, Raman backscattering light (Stokes in the Raman scattering and anti-Stokes light) turns back in the WDM light splitting filtration module on the way through sensor fibre, fall the relatively strong Rayleigh scattering light of amplitude through filtering and light-splitting processing, isolate the anti-Stokes light (AS) that is loaded with temperature information and temperature computation with reference to the stokes light (S) that uses, AS and S light signal are received by two-way photoelectricity receiving circuit respectively, again through after amplifying, enter high-speed a/d converter conversion, then pass through digital multi-point signal averager, storage, the linear superposition of periodic signal obtains temperature data after calculating, temperature data repeats through M time, can realize digital averaging, reach the inhibition noise, improve the purpose of signal to noise ratio (S/N ratio); By the corresponding relation of temperature and signal, process calculating through software and can obtain along the distributed temperature of all simulation division points of whole sensing optic cable.
The utlity model has following advantage: (a 1) optical fiber can replace a large amount of point sensors, can realize online in real time measurement, disaster surveillance and forecast, and the unit cost of obtaining information reduces greatly; (2) light, flexible, the convenient engineering installation of sensor fibre quality, the sensor fibre anti-electromagnetic interference capability is strong, and insulating property are high, sensor is output as light signal, anti-electromagnetic interference (EMI), the advantage such as anti-flaming, explosion-proof, anticorrosive can be operated in the rugged surroundings such as high pressure, large electric current and blast.
Description of drawings:
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is a kind of use view of the present utility model.
Reference numeral: industrial computer 1, semiconductor laser 2, WDM light splitting filtration module 3, photoelectricity receiver module 4, data acquisition module 5, sensor fibre 6, tank body to be measured 7.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
The utility model proposes a kind of storage tank device for detecting temperature based on distributed optical fiber temperature sensor, as shown in Figure 1, comprise industrial computer 1, semiconductor laser 2, WDM light splitting filtration module 3, photoelectricity receiver module 4, data acquisition module 5 and sensor fibre 6, it is characterized in that semiconductor laser 1 is connected with sensor fibre 6 through WDM light splitting filtration module 3, the input end of photoelectricity receiver module 4 is connected with WDM light splitting filtration module 3, the input end of data acquisition module 5 is connected with the output terminal of photoelectricity receiver module 4, and the output terminal of data acquisition module 5 and semiconductor laser 2 are connected with industrial computer 1 respectively.
Be provided with two photoelectricity receiving circuits that are connected with WDM light splitting filtration module 3 respectively in the photoelectricity receiver module 4 described in the utility model, two photoelectricity receiving circuits are respectively applied to receive and return from sensor fibre, and the dorsad stokes light of processing through WDM light splitting filtration module 3 and anti-Stokes light dorsad, and give data acquisition module 5 with it.
The periodic pulse signal that the utility model is sent by industrial computer 1 control in use starts semiconductor laser 2 work, make it send pulse power light, the pulsed optical signals process WDM light splitting filtration module 3 that sends is in sensor fibre 6,6 of sensor fibres are placed oneself in the midst of in the temperature field to be measured, in order to improve the thermometric accuracy, as shown in Figure 2, sensor fibre can be wrapped on the tank body 7 to be measured in use, the light pulse of in sensor fibre 6, propagating, can be because the temperature effect of each location point causes backscattering, Raman backscattering light (Stokes in the Raman scattering and anti-Stokes light) turns back in the WDM light splitting filtration module 3 on the way through sensor fibre 6, fall the relatively strong Rayleigh scattering light of amplitude through filtering and light-splitting processing, isolate the anti-Stokes light AS that is loaded with temperature information and temperature computation with reference to the stokes light S that uses, AS and S light signal are received by the two-way photoelectricity receiving circuit in the photoelectricity receiver module 4 respectively, again through after amplifying, enter high-speed a/d converter conversion, then pass through digital multi-point signal averager, storage, the linear superposition of periodic signal obtains temperature data after calculating, temperature data repeats through M time, can realize digital averaging, reach the inhibition noise, improve the purpose of signal to noise ratio (S/N ratio); By the corresponding relation of temperature and signal, process calculating through software and can obtain along the distributed temperature of all simulation division points of whole sensing optic cable.
The utlity model has following advantage: (a 1) optical fiber can replace a large amount of point sensors, can realize online in real time measurement, disaster surveillance and forecast, and the unit cost of obtaining information reduces greatly; (2) light, flexible, the convenient engineering installation of sensor fibre quality, the sensor fibre anti-electromagnetic interference capability is strong, and insulating property are high, sensor is output as light signal, anti-electromagnetic interference (EMI), the advantage such as anti-flaming, explosion-proof, anticorrosive can be operated in the rugged surroundings such as high pressure, large electric current and blast.
Claims (2)
1. storage tank device for detecting temperature based on distributed optical fiber temperature sensor, comprise industrial computer, semiconductor laser, WDM light splitting filtration module, photoelectricity receiver module, data acquisition module and sensor fibre, it is characterized in that semiconductor laser is connected with sensor fibre through WDM light splitting filtration module, the input end of photoelectricity receiver module is connected with WDM light splitting filtration module, the input end of data acquisition module is connected with the output terminal of photoelectricity receiver module, and the output terminal of data acquisition module and semiconductor laser are connected with industrial computer respectively.
2. a kind of storage tank device for detecting temperature based on distributed optical fiber temperature sensor according to claim 1 is characterized in that being provided with in the described photoelectricity receiver module two photoelectricity receiving circuits that are connected with WDM light splitting filtration module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220472064.8U CN202770556U (en) | 2012-09-17 | 2012-09-17 | Oil storage tank temperature monitoring device based on distributed optical fiber temperature sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220472064.8U CN202770556U (en) | 2012-09-17 | 2012-09-17 | Oil storage tank temperature monitoring device based on distributed optical fiber temperature sensor |
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| Publication Number | Publication Date |
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| CN202770556U true CN202770556U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220472064.8U Expired - Fee Related CN202770556U (en) | 2012-09-17 | 2012-09-17 | Oil storage tank temperature monitoring device based on distributed optical fiber temperature sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390724A (en) * | 2014-12-10 | 2015-03-04 | 杭州欧忆光电科技有限公司 | Temperature measurement device of floating roof oil tank |
| CN113063518A (en) * | 2021-03-24 | 2021-07-02 | 山东特种设备检验检测集团有限公司 | Atmospheric storage tank bottom plate corrosion monitoring method based on optical fiber sensing |
| CN113418625A (en) * | 2021-04-02 | 2021-09-21 | 西安电子科技大学 | Device and method for measuring electric explosion temperature distribution by adopting dual-wavelength laser |
-
2012
- 2012-09-17 CN CN201220472064.8U patent/CN202770556U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390724A (en) * | 2014-12-10 | 2015-03-04 | 杭州欧忆光电科技有限公司 | Temperature measurement device of floating roof oil tank |
| CN113063518A (en) * | 2021-03-24 | 2021-07-02 | 山东特种设备检验检测集团有限公司 | Atmospheric storage tank bottom plate corrosion monitoring method based on optical fiber sensing |
| CN113418625A (en) * | 2021-04-02 | 2021-09-21 | 西安电子科技大学 | Device and method for measuring electric explosion temperature distribution by adopting dual-wavelength laser |
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Granted publication date: 20130306 Termination date: 20140917 |
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