CN103940529A - Optical-fiber security monitoring device for oil-field oil transportation station - Google Patents
Optical-fiber security monitoring device for oil-field oil transportation station Download PDFInfo
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- CN103940529A CN103940529A CN201410049796.XA CN201410049796A CN103940529A CN 103940529 A CN103940529 A CN 103940529A CN 201410049796 A CN201410049796 A CN 201410049796A CN 103940529 A CN103940529 A CN 103940529A
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- monitoring
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- fiber
- temperature
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Abstract
Disclosed is an optical-fiber security monitoring device for an oil-field oil transportation station. The device includes monitoring optical cables. The device is characterized in that the monitoring optical cables are provided with fiber cores. Temperature sensing gratings of a photosensitive material are arranged in the fiber cores. The outer parts of the fiber cores are wrapped with sheaths of a macromolecule insulating material. The monitoring cables are arranged in cable underground channels of crude oil storage tanks and oil and water transportation pumps. A terminal is connected with an optical information demodulator. An optical technology is applied to realize intrinsic-safety monitoring and fiber bragg grating monitoring is electrically neutral and non-conductive. Any number of monitoring grating points can be designed for one optical fiber so that a multi-point temperature measurement network can be established flexibly and conveniently. The grating sensors are small in size, capable of measuring the temperature of a narrow space, great in insulating performance, free from effects of a damp environment, chemical erosion resistant, electromagnetic interference resistant, and electrically neutral, non-conductive, anti-thunder and anti-static. Information of each path of monitoring optical fiber passes the optical information demodulator and monitored temperature of each path is displayed on a screen of a computer at any time and an alarm is sent when overtemperature happens and the overtemperature position is displayed.
Description
Technical field
The present invention relates to a kind of safety monitoring assembly of crude oil gathering station, particularly a kind of oil field transfer station optical fiber safety monitoring device.
Background technology
Crude oil gathering station is the former oil and gas terminal of field produces, has 30 50000-100000m in each crude oil transmission station
3crude oil storage tank, each crude oil storage tank has heating pipeline and oil transportation water transfer pump.The power cable of heating pipeline and oil transportation water transfer pump is all in openable enclosed underpass, and crude oil storage tank offset crude oil heater and pulpit room on duty is respectively 50m, contains complicated hydro carbons in crude oil, and in air, content is 74～123g/m
3time, overtemperature or chance fire can explode, so the flash-point value of national standard strict regulations hydro carbons is>=55 ℃.Existing monitoring technology is with occasionally platinum resistance monitoring of thermoelectricity, is all charged conductor.
Be not intrinsic safety monitoring, facility environment impact is larger.
Summary of the invention
For achieving the above object, technical scheme provided by the invention is as follows: comprise monitoring optical cable, it is characterized in that: monitoring optical cable is provided with fibre core, lays the temperature sensing grating of photochromics, at the outside coated high molecular insulating material crust of fibre core in fibre core; Monitoring optical cable is laid in the cable subway of each crude oil storage tank and oil transportation water transfer pump, and terminal and optical information (FBG) demodulator join.
Effect of the present invention is: applied optics technology has realized intrinsic safety monitoring, FBG monitoring is not charged non-conductive, an optical fiber can design a monitoring grating arbitrarily and layout, and flexibly, conveniently sets up multi-point temperature measurement net, and grating sensor volume is little, can survey small space temperature, good insulating, is not affected by wet environment, chemical resistance of concrete, anti-electromagnetic interference (EMI), not charged non-conductive lightning protection anti electrostatic.The information of each road monitoring optical fiber is through optical information (FBG) demodulator, and the temperature of Jiang Ge road monitoring is presented on the screen of computing machine at any time, has the alert always of overtemperature and shows the position of overtemperature.
Accompanying drawing explanation
Fig. 1 is the structural representation of monitoring optical cable.
Fig. 2 is the cable subway schematic diagram that monitoring optical cable is laid in each crude oil storage tank and oil transportation water transfer pump.
Embodiment
See Fig. 1, monitoring optical cable is provided with the fibre core 1 that is doped with photochromics, according to the spectral frequency that need to design thermometric grating 2 and the wavelength of monitoring, many group gratings 2 arbitrarily can be set on an optical fiber 1, by micro-laser technology, grating 2 is write to fibre core 1, at the outside coated high molecular insulating material crust 3 of fibre core 1; Be made into monitoring optical cable.
See Fig. 2, when the present invention applies, each crude oil storage tank that monitoring optical cable is laid in tank field 4 around and oil tank top cross-ventilation mouth, and in enclosed various control cables underpass 9 inside that can open, prevents the danger that naked light and overtemperature and cable short circuit bring.Monitoring optical cable is monitored storage tank around and temperature and the cable temperature of oil tank top cross-ventilation mouth at any time.Monitoring optical cable is distributed in heating furnace body 5 and heating pipeline 8, prevents the danger that boiler overheating brings.Monitoring optical cable is distributed in each oil transportation water transfer pump and power switch cabinet 6, prevents the danger of each oil transportation water transfer pump and power switch overload.Each terminal of monitoring optical cable is all joined with the optical information (FBG) demodulator 7 in room on duty, pulpit.On the screen of computing machine, show the temperature of each monitoring point simultaneously.
Claims (1)
1.Yi Zhong oil field transfer station optical fiber safety monitoring device, comprises monitoring optical cable, it is characterized in that: monitoring optical cable is provided with fibre core, lays the temperature sensing grating of photochromics, at the outside coated high molecular insulating material crust of fibre core in fibre core; Monitoring optical cable is laid in the cable subway of each crude oil storage tank and oil transportation water transfer pump, and terminal and optical information (FBG) demodulator join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049796.XA CN103940529A (en) | 2014-02-13 | 2014-02-13 | Optical-fiber security monitoring device for oil-field oil transportation station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049796.XA CN103940529A (en) | 2014-02-13 | 2014-02-13 | Optical-fiber security monitoring device for oil-field oil transportation station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103940529A true CN103940529A (en) | 2014-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410049796.XA Pending CN103940529A (en) | 2014-02-13 | 2014-02-13 | Optical-fiber security monitoring device for oil-field oil transportation station |
Country Status (1)
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| CN (1) | CN103940529A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060034559A1 (en) * | 2004-08-10 | 2006-02-16 | Petroleo Brasileiro S.A. - Petrobras, Rio De Janerio, Rj | Optical transducer and method for the simultaneous measurement of pressure and temperature in oil and gas wells |
| CN201507323U (en) * | 2009-10-16 | 2010-06-16 | 山东大学 | Optical fiber coal mine water inrush precursor information monitor |
| CN201935752U (en) * | 2010-12-05 | 2011-08-17 | 胜利油田三力石油技术开发有限公司 | Optical fiber safety monitoring system for oil field united station |
| CN202381084U (en) * | 2011-12-06 | 2012-08-15 | 中国石油天然气股份有限公司 | Identical optical fiber temperature and pressure combined monitoring system |
| CN102680139A (en) * | 2012-06-07 | 2012-09-19 | 北京航空航天大学 | Fiber grating temperature sensing system for detecting temperatures of inflammables and explosives |
-
2014
- 2014-02-13 CN CN201410049796.XA patent/CN103940529A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060034559A1 (en) * | 2004-08-10 | 2006-02-16 | Petroleo Brasileiro S.A. - Petrobras, Rio De Janerio, Rj | Optical transducer and method for the simultaneous measurement of pressure and temperature in oil and gas wells |
| CN201507323U (en) * | 2009-10-16 | 2010-06-16 | 山东大学 | Optical fiber coal mine water inrush precursor information monitor |
| CN201935752U (en) * | 2010-12-05 | 2011-08-17 | 胜利油田三力石油技术开发有限公司 | Optical fiber safety monitoring system for oil field united station |
| CN202381084U (en) * | 2011-12-06 | 2012-08-15 | 中国石油天然气股份有限公司 | Identical optical fiber temperature and pressure combined monitoring system |
| CN102680139A (en) * | 2012-06-07 | 2012-09-19 | 北京航空航天大学 | Fiber grating temperature sensing system for detecting temperatures of inflammables and explosives |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140723 |