CN112146780A - Optical fiber temperature measuring system for bus duct - Google Patents
Optical fiber temperature measuring system for bus duct Download PDFInfo
- Publication number
- CN112146780A CN112146780A CN202010892702.0A CN202010892702A CN112146780A CN 112146780 A CN112146780 A CN 112146780A CN 202010892702 A CN202010892702 A CN 202010892702A CN 112146780 A CN112146780 A CN 112146780A
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- China
- Prior art keywords
- temperature measurement
- bus duct
- optical fiber
- bus
- sleeve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 34
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 238000002592 echocardiography Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000001069 Raman spectroscopy Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000253 optical time-domain reflectometry Methods 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
- G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
- G01D5/35364—Sensor working in reflection using backscattering to detect the measured quantity using inelastic backscattering to detect the measured quantity, e.g. using Brillouin or Raman backscattering
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses an optical fiber temperature measurement system for a bus duct, which comprises a bus duct body, wherein a plurality of copper bars are arranged in the bus duct body, temperature measurement optical fibers are arranged on the side surfaces of the copper bars, the temperature measurement optical fibers are sleeved in respective first sleeves, the first sleeves are connected through fixing parts, the temperature measurement optical fibers are connected with a temperature measurement host, and a pulse laser is arranged in the temperature measurement host. The bus is specially designed for the development of users with higher pursuit on the safety information of bus power supply. The principle that the scattering of laser in the optical fiber changes along with the temperature change is utilized, and an Optical Time Domain Reflection (OTDR) technology is adopted at a signal processing terminal to position the hot spots through the transmission speed of light waves in the optical fiber and the time of backward light echoes. The heating point can be monitored at fixed points, and once abnormity occurs, the heating point can be located according to the monitoring background, so that the problem is solved before an accident occurs, and the power supply safety is ensured.
Description
Technical Field
The invention relates to an optical fiber temperature measuring system for a bus duct.
Background
The low-voltage intensive bus is greatly accepted by the market due to excellent performance, compact appearance and good heat dissipation, and is colorful in various low-voltage power supply areas.
With the improvement of science and technology and the innovation of products, in order to ensure the use safety of the bus duct, a higher requirement is put forward on the temperature control of the bus duct by a use end, and particularly, the higher requirement is put forward on the dynamic monitoring of the power-on running state of the bus duct.
However, because the span of the bus duct is large, if the traditional temperature measurement mode is adopted, a large amount of cost is increased, and a large amount of sensors are installed. Therefore, in the aspect of temperature control of the bus duct, a novel dynamic temperature measurement mode needs to be adopted.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a better temperature measurement mode by combining with mechanism analysis so as to ensure the use safety of the bus duct.
The utility model provides an optic fibre temperature measurement system for bus duct, includes the bus duct body, this internal a plurality of copper bars that are equipped with of bus duct, the side of copper bar all is equipped with temperature measurement optic fibre, temperature measurement optic fibre all overlap and establish in respective first sleeve, link to each other through the mounting between a plurality of first sleeve, temperature measurement optic fibre links to each other with the temperature measurement host computer, the temperature measurement host computer in be equipped with pulse laser.
Preferably, a plurality of fixing pieces are arranged along the direction of the bus duct body.
Preferably, a module for receiving stokes light, a module for receiving anti-stokes light and an operation module are arranged in the temperature measurement host, and the operation module is used for calculating the proportion information of the stokes light and the anti-stokes light.
Preferably, two adjacent bus duct bodies are connected through a bus connector, and a connector cover plate is arranged outside the bus connector.
Preferably, the number of the copper bars is five.
Preferably, the first sleeves between two adjacent bus duct bodies are connected through the second sleeves.
Has the advantages that:
the bus is specially designed for the development of users with higher pursuit on the safety information of bus power supply. The principle that the scattering of laser in the optical fiber changes along with the temperature change is utilized, and an Optical Time Domain Reflection (OTDR) technology is adopted at a signal processing terminal to position the hot spots through the transmission speed of light waves in the optical fiber and the time of backward light echoes. The heating point can be monitored at fixed points, and once abnormity occurs, the heating point can be located according to the monitoring background, so that the problem is solved before an accident occurs, and the power supply safety is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a bus duct body;
FIG. 2 is a schematic view of the installation of the optical fiber temperature measuring part;
FIG. 3 is a schematic structural diagram of a temperature measuring optical fiber;
FIG. 4 is a schematic view of the fastener construction;
FIG. 5 is a schematic structural diagram of an optical fiber temperature measurement system for a bus duct;
FIG. 6 is a schematic structural view of a bus bar connector;
FIG. 7 is a schematic view of the construction of the connector cover plate;
FIG. 8 is a schematic view of the installation structure of the temperature measurement host;
FIG. 9 is a schematic diagram of a thermometry system;
1. the bus duct comprises a bus duct body 2, a first sleeve 3, a temperature measuring optical fiber 4, a fixing piece 5, a bus connector 6, a connector cover plate 7, a second sleeve 8 and a temperature measuring host.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1-8, an optical fiber temperature measurement system for a bus duct comprises a bus duct body 1, wherein a plurality of copper bars are arranged in the bus duct body 1, temperature measurement optical fibers 3 are arranged on the side faces of the copper bars, the temperature measurement optical fibers 3 are sleeved in respective first sleeves 2, the first sleeves 2 are connected through fixing parts 4, the temperature measurement optical fibers 3 are connected with a temperature measurement host 8, and a pulse laser is arranged in the temperature measurement host 8.
The temperature measurement host is internally provided with a module for receiving Stokes light, a module for receiving anti-Stokes light and an operation module, and the operation module is used for calculating the proportion information of the Stokes light and the anti-Stokes light.
Two adjacent bus duct bodies 1 are connected through a bus connector 5, and a connector cover plate 6 is arranged outside the bus connector 5.
In the production and assembly of the intensive bus, after the copper bar is wound and wrapped by the insulating sleeve, the optical fixing pieces 4 are placed at intervals, and then the optical fixing pieces penetrate through the fixing pieces 4 to lay the first sleeve 2.
When the bus is installed to a field distribution room, optical fibers are laid in a specific bus section or the whole bus according to field requirements. The optical fiber passes through the embedded first sleeve 2 of the bus body, and the embedded first sleeve 2 can ensure the temperature measurement of five phases of PE, L1, L2, L3 and L4.
The single segment bus bar is laid as shown in fig. 1, and the multi-segment bus bar connection is shown as 5. And a second sleeve 7 is added at the connector for switching, so that the protection of the optical fiber at the connector is ensured.
After the optical fibers are laid, the optical fibers are gathered to a temperature measurement host 8 at the tail end of signal acquisition, when the temperature measurement host works normally, a pulse laser of the temperature measurement host emits pulse laser into the temperature measurement optical fibers, the laser forms scattering in the optical fibers, and by means of one Raman scattering, the Raman scattering can generate Stokes light with the wavelength longer than that of a light source and anti-Stokes light with the wavelength shorter than that of the light source.
The intensity of the anti-stokes light signal is temperature dependent and the stokes light signal is temperature independent. The temperature at any point in the optical waveguide can be derived from the ratio of the anti-stokes optical signal to the stokes optical signal intensity at that point.
These hot spots are located by the transmission speed of the light waves in the optical fiber and the time of the back light echo by using the Optical Time Domain Reflectometry (OTDR) technique. By using the principle, distributed measurement of the temperature field along the optical fiber can be realized. In the optical fiber loop, once the abnormal condition that the temperature of a bus section exceeds a set value occurs, the background system can immediately send an alarm and automatically analyze the position distance of a fault point, and if the splicing box is arranged on the bus section, the background system can also send a switching-off signal according to the setting of the section position to disconnect the switching of the splicing box on the bus section and timely cut off the lower-level load. And intelligent temperature measurement and control of the bus are realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides an optic fibre temperature measurement system for bus duct, its characterized in that, includes the bus duct body, this internal a plurality of copper bars that are equipped with of bus duct, the side of copper bar all is equipped with temperature measurement optic fibre, temperature measurement optic fibre all overlap and establish in respective first sleeve, link to each other through the mounting between a plurality of first sleeve, temperature measurement optic fibre links to each other with the temperature measurement host computer, the temperature measurement host computer in be equipped with pulse laser.
2. The optical fiber temperature measuring system for the bus duct according to claim 1, wherein a plurality of fixing pieces are arranged along the direction of the bus duct body.
3. The optical fiber temperature measurement system for the bus duct according to claim 1, wherein a module for receiving stokes light, a module for receiving anti-stokes light and an operation module are arranged in the temperature measurement host, and the operation module is used for calculating ratio information of the stokes light and the anti-stokes light.
4. The optical fiber temperature measuring system for the bus duct according to claim 1, wherein two adjacent bus duct bodies are connected through a bus connector, and a connector cover plate is arranged outside the bus connector.
5. The optical fiber temperature measurement system for the bus duct according to claim 1, wherein the number of the copper bars is five.
6. The optical fiber temperature measuring system for the bus duct according to claim 1, wherein a first sleeve between two adjacent bus duct bodies is connected with a second sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010892702.0A CN112146780A (en) | 2020-08-31 | 2020-08-31 | Optical fiber temperature measuring system for bus duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010892702.0A CN112146780A (en) | 2020-08-31 | 2020-08-31 | Optical fiber temperature measuring system for bus duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112146780A true CN112146780A (en) | 2020-12-29 |
Family
ID=73890938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010892702.0A Pending CN112146780A (en) | 2020-08-31 | 2020-08-31 | Optical fiber temperature measuring system for bus duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112146780A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007097490A1 (en) * | 2006-02-23 | 2007-08-30 | Ls Corp. | Bus duct with tube and bust duct system measurable the temperature |
| CN202424061U (en) * | 2011-12-19 | 2012-09-05 | 福建森达电气有限公司 | Bus duct with function of infrared optical fiber temperature measurement |
| CN103346512A (en) * | 2013-06-25 | 2013-10-09 | 金海新源电气江苏有限公司 | Intelligent type bus duct |
| CN204422101U (en) * | 2015-02-09 | 2015-06-24 | 江苏久创电气科技有限公司 | A kind of distributed fiber temperature measuring device for intelligent grid |
| CN206313400U (en) * | 2016-12-30 | 2017-07-07 | 浙江金恒力新技术开发有限公司 | A kind of high security bus duct connector |
| CN206349726U (en) * | 2016-12-30 | 2017-07-21 | 浙江金恒力新技术开发有限公司 | A kind of multi-functional concentration bus duct |
| CN206515403U (en) * | 2016-10-08 | 2017-09-22 | 上海腾盛智能安全科技股份有限公司 | A kind of distributed fiber temperature measuring device |
| CN111224361A (en) * | 2020-03-12 | 2020-06-02 | 江苏亿能电气有限公司 | Bus duct is pour in temperature measurement |
-
2020
- 2020-08-31 CN CN202010892702.0A patent/CN112146780A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007097490A1 (en) * | 2006-02-23 | 2007-08-30 | Ls Corp. | Bus duct with tube and bust duct system measurable the temperature |
| CN202424061U (en) * | 2011-12-19 | 2012-09-05 | 福建森达电气有限公司 | Bus duct with function of infrared optical fiber temperature measurement |
| CN103346512A (en) * | 2013-06-25 | 2013-10-09 | 金海新源电气江苏有限公司 | Intelligent type bus duct |
| CN204422101U (en) * | 2015-02-09 | 2015-06-24 | 江苏久创电气科技有限公司 | A kind of distributed fiber temperature measuring device for intelligent grid |
| CN206515403U (en) * | 2016-10-08 | 2017-09-22 | 上海腾盛智能安全科技股份有限公司 | A kind of distributed fiber temperature measuring device |
| CN206313400U (en) * | 2016-12-30 | 2017-07-07 | 浙江金恒力新技术开发有限公司 | A kind of high security bus duct connector |
| CN206349726U (en) * | 2016-12-30 | 2017-07-21 | 浙江金恒力新技术开发有限公司 | A kind of multi-functional concentration bus duct |
| CN111224361A (en) * | 2020-03-12 | 2020-06-02 | 江苏亿能电气有限公司 | Bus duct is pour in temperature measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210512 Address after: No. 508, GANGLONG Road, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province, 212200 Applicant after: Jiangsu Yineng Bus Co.,Ltd. Address before: 212200 No. 65 Sanxing Road, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province Applicant before: ZHENJIANG MINGCHI ELECTRICAL Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 212200 No. 508, GANGLONG Road, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province Applicant after: Eaton bus (Jiangsu) Co.,Ltd. Address before: 212200 No. 508, GANGLONG Road, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province Applicant before: Jiangsu Yineng Bus Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201229 |