CN201302491Y - Loop sensor for measuring temperature of cable conductor - Google Patents
Loop sensor for measuring temperature of cable conductor Download PDFInfo
- Publication number
- CN201302491Y CN201302491Y CNU2008201919850U CN200820191985U CN201302491Y CN 201302491 Y CN201302491 Y CN 201302491Y CN U2008201919850 U CNU2008201919850 U CN U2008201919850U CN 200820191985 U CN200820191985 U CN 200820191985U CN 201302491 Y CN201302491 Y CN 201302491Y
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- China
- Prior art keywords
- temperature
- cable
- loop sensor
- cable conductor
- conductors
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- Expired - Lifetime
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Abstract
The utility model relates to a loop sensor for measuring temperature of cable conductors, which comprises two thermocouple conductors, and is characterized in that the temperature sensing ends of the thermocouple conductors are of hemi-toroidal shape, and a copper ring gasket is welded on each end of the thermocouple conductors. The utility model has the advantages that the temperature of conductors at any place of the cable body can be measured accurately and in real time, the operation state and conductor temperature can be monitored effectively when the cable line is under different line loads and scientific and effective technical information can be provided for the safe operation of the cable line.
Description
Technical field
The utility model belongs to a kind of temperature measurement of cable conductor device, particularly a kind of loop sensor that is used for temperature measurement of cable conductor.
Background technology
Because the needs of urban construction, newly-built electrical power mains line is abandoned pole line transmission mode in the past usually and adopt the power cable line that directly lays in underground dedicated tunnel or soil in the urban district, with electromagnetic interference (EMI), the floor area of the avoiding trolley wire adverse effect to city planning such as excessive.The existing power cable adopts solid material as the major part that guarantees its electrical insulation properties usually, and its reliability is a most important factor in the power cable.And in actual applications, whether there is confidential relation with its conductor in safety owing to the temperature that produces by load to the insulating property of cable material, in the cable industry it this technical field has been carried out scientific research for many years and has explored.Traditional measuring method adopts common some temperature formula temperature sensor usually, the ground cable body vertically need be cut open during installation, and adopt traditional tight bundle fixed form will put temperature sensor temperature-sensitive part and partly carry out contact with cable conductor and fix, there are following deficiency in such test and installation method: 1, dissection and the reduction scope that cable is carried out is excessive, structure and thermal field distribution to cable body exert an influence, and there are theoretical error in measurement data and original cable; 2, the installation of sensor and the fixing common way of contact, the temperature transfer effect and the poor reliability of sensor and measured conductor of adopting; 3, workload is big, and mounting process is loaded down with trivial details.
Summary of the invention
The purpose of this utility model provide a kind of can minimize change the construction of cable and thermal field distribution influence in, realization is to the small space inner cable conductor temperature loop sensor that is used for temperature measurement of cable conductor quick, that accurately measure, to overcome above-mentioned deficiency.
To achieve these goals, the utility model is made by two thermocouple wires, is characterized in: the temperature-sensitive end of thermocouple wire is the semicircular ring shape, also is welded with a copper ring pad in the temperature-sensitive end of thermocouple wire.
The temperature-sensitive end leads of above-mentioned thermocouple wire is tight helical structure.
The semicircular ring plane of the outlet direction of above-mentioned thermocouple wire and described temperature-sensitive end in vertical direction.
Above-mentioned thermocouple wire adopts the thermopair material of T type or other index type.
Advantage of the present utility model is can be according to the research needs, the any part of small space inner cable body is realized the precision real time measuring of conductor temperature, running status and the conductor temperature of cable line when the different line load effectively monitored realizing, the purpose of scientific and effective technical information is provided for the safe operation of cable line.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a scheme of installation of the present utility model.
Among the figure: 1-loop sensor, 2-copper ring pad, 3-sensor outlet part, the non magnetic securing member of 4-, 5-packing material, 6-sealant, 7-temperature collecting cell, 8-cable, 9-cable conductor, 10-cable surface mounting hole, 11-conductive surface mounting hole.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
The utility model is made by two thermocouple wires, and the temperature-sensitive end of thermocouple wire is the semicircular ring shape of tight helical structure, also is welded with a copper ring pad in the temperature-sensitive end of thermocouple wire.
The utility model is installed according to following manner:
1, clean and mark at the position of cable preparation measurement temperature, the installation of sensor should be carried out at the upper surface of cable;
2, use the bigger straight drill of diameter in the cross-linked cable insulating layer that adopts same raw materials, laterally to drill through some spiral fashion cross linked insulation materials, as packing material;
3, to conductor direction vertical drilling, drill bit reaches conductive surface promptly to be stopped the straight drill of use diameter phi 10mm at cable surface, conductive surface is not produced damage as far as possible.
4, the conductive surface attachment removing of using diameter phi 2.5mm or φ 3mm lengthening straight drill will hole interior, and, finish the making of cable surface mounting hole with the corner part in the pressurized air cleaning mounting hole;
5, use the conductive surface centre boring of diameter phi 2.5mm or φ 3mm lengthening straight drill in mounting hole, degree of depth 3mm～5mm, and clean the surface of a wound with pressurized air, finish the making of conductive surface pilot hole;
6, the ring-type temperature-sensitive end of the sensor made is cleaned out, and put into the cable surface mounting hole gently, up to contacting with the cable conductor surface;
7, use non magnetic securing member, the ring-type temperature-sensitive end of temperature sensor closely is fixed on the conductive surface pilot hole surface of cable conductor, and note to damage the measurement outlet of temperature-sensitive electrode;
8, the packing material that step 2 is drilled through is slowly inserted in the cable surface mounting hole, and carefully tamps with mallet and small wood.Packing material should be filled to the cable surface height;
9, use encapsulant that cable surface mounting hole surface is tamped and sealed, outside use insulative water-proof adhesive tape and black PVC adhesive tape are wrapped repeatedly two-layer in 1/2 mode of putting up.
10, with the outlet of temperature sensor part after near the positive and negative S type of the cable surface the cable surface mounting hole is fixing, vertically away from cable, be connected to the digital temperature measuring unit then and realize measurement temperature signal.
The content that is not described in detail in this instructions belongs to this area professional and technical personnel's known prior art.
Claims (4)
1, a kind of loop sensor that is used for temperature measurement of cable conductor is made by two thermocouple wires, it is characterized in that: the temperature-sensitive end of thermocouple wire is the semicircular ring shape, also is welded with a copper ring pad in the temperature-sensitive end of thermocouple wire.
2, the loop sensor that is used for temperature measurement of cable conductor as claimed in claim 1 is characterized in that: the temperature-sensitive end leads of thermocouple wire is tight helical structure.
3, the loop sensor that is used for temperature measurement of cable conductor as claimed in claim 1 is characterized in that: the semicircular ring plane of the outlet direction of thermocouple wire and described temperature-sensitive end in vertical direction.
4, the loop sensor that is used for temperature measurement of cable conductor as claimed in claim 1 is characterized in that: thermocouple wire adopts the thermopair material of T type or other index type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201919850U CN201302491Y (en) | 2008-10-31 | 2008-10-31 | Loop sensor for measuring temperature of cable conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201919850U CN201302491Y (en) | 2008-10-31 | 2008-10-31 | Loop sensor for measuring temperature of cable conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201302491Y true CN201302491Y (en) | 2009-09-02 |
Family
ID=41086119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201919850U Expired - Lifetime CN201302491Y (en) | 2008-10-31 | 2008-10-31 | Loop sensor for measuring temperature of cable conductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201302491Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494793A (en) * | 2011-12-01 | 2012-06-13 | 国网电力科学研究院 | Temperature thermocouple for high-voltage and ultrahigh-voltage power cable |
| CN103792447A (en) * | 2014-01-20 | 2014-05-14 | 常州嘉恩电子科技有限公司 | Ultrahigh-voltage ceramic filter |
| CN109490710A (en) * | 2018-11-23 | 2019-03-19 | 中国二十二冶集团有限公司 | The method for searching aluminium cable breakpoint |
| CN110186582A (en) * | 2019-05-31 | 2019-08-30 | 国网浙江省电力有限公司 | A kind of cable thermocouple laying method that can be achieved to block water |
| CN111721801A (en) * | 2020-05-20 | 2020-09-29 | 江苏方天电力技术有限公司 | Heat conduction sensor based on heat conduction gradient |
-
2008
- 2008-10-31 CN CNU2008201919850U patent/CN201302491Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494793A (en) * | 2011-12-01 | 2012-06-13 | 国网电力科学研究院 | Temperature thermocouple for high-voltage and ultrahigh-voltage power cable |
| CN103792447A (en) * | 2014-01-20 | 2014-05-14 | 常州嘉恩电子科技有限公司 | Ultrahigh-voltage ceramic filter |
| CN109490710A (en) * | 2018-11-23 | 2019-03-19 | 中国二十二冶集团有限公司 | The method for searching aluminium cable breakpoint |
| CN110186582A (en) * | 2019-05-31 | 2019-08-30 | 国网浙江省电力有限公司 | A kind of cable thermocouple laying method that can be achieved to block water |
| CN111721801A (en) * | 2020-05-20 | 2020-09-29 | 江苏方天电力技术有限公司 | Heat conduction sensor based on heat conduction gradient |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090902 |