CN204375474U - A kind of can the cable of accurate temperature measurement - Google Patents
A kind of can the cable of accurate temperature measurement Download PDFInfo
- Publication number
- CN204375474U CN204375474U CN201420853590.8U CN201420853590U CN204375474U CN 204375474 U CN204375474 U CN 204375474U CN 201420853590 U CN201420853590 U CN 201420853590U CN 204375474 U CN204375474 U CN 204375474U
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- Prior art keywords
- cable
- temperature
- optical fiber
- conductor
- band
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a kind of can the cable of accurate temperature measurement, comprise band, and be coated on the conductor in band, conductor loop be distributed in band, be wherein formed centrally thermometric passage, in thermometric passage, be provided with temperature-measuring optical fiber.The utility model measured temperature is conductor temperature, without the need to conversion, is not affected by the external environment; Lay with cable, without the need to secondary installing, simple to operate; Optical fiber present position electric field is almost nil, can not affect the transmission of optical fiber temperature-measurement signal; Fibre junction, without the need to drawing, can not produce harmful effect to cable main insulation; Not overlapping with cable main insulation position, even if be damaged, the safe operation of cable also can not be affected.
Description
Technical field
The utility model relates to a kind of cable.
Background technology
Along with the fast development of economy, urban construction and modernization of business degree improve, electric power as economic lifeline encounters unprecedented challenge, and in order to meet power demands, the proportion in the electrical network of each big city shared by power cable is increasing, under this condition, the safety problem of power cable is more and more subject to people's attention, particularly city Central Substations, and circuit is intensive, engineering is complicated, and underground cable generally distributes extensively, distance, must cause serious loss once have an accident.
Temperature is the key factor in useful life affecting power cable, under improper superheat state, the aging speed of power cable insulation quickly, once cable running overload, conductor temperature will sharply rise, and accelerates ageing of insulation, even thermal breakdown occurs, cause fire, danger is caused to the safety of life and property of people.In prior art, the thermometric mode of cable has two kinds: by temperature sensing optical fiber Surface Mount (surface-mount type) on outer jacket, and temperature sensing optical fiber is built in (built-in) between cable metal sheath and insulating barrier, calculates conductor temperature again after recording relevant temperature by particular algorithm.These two kinds of modes are affected by the external environment greatly, and inverse algorithm whether science need demonstration further, therefore there is larger error in the conductor temperature calculated.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provide a kind of can the cable of accurate temperature measurement, by temperature-measuring optical fiber is arranged at conductor center, directly can obtains the real time temperature of conductor, be convenient to accurate measurement.
The utility model solves the technical scheme that its technical problem adopts:
Can the cable of accurate temperature measurement, comprise band, and be coated on the conductor in band, conductor loop be distributed in band, be wherein formed centrally thermometric passage, in thermometric passage, be provided with temperature-measuring optical fiber.
As the further improved procedure of such scheme, outside temperature-measuring optical fiber, be provided with sheath.
As the further improved procedure of such scheme, what temperature-measuring optical fiber was snakelike is arranged in thermometric passage.
As the further improved procedure of such scheme, comprising the aluminium hydraulic pressed connecting pipe for connecting between conductor, the tube wall of aluminium hydraulic pressed connecting pipe being axially arranged with the opening at least one place along it.
As the further improved procedure of such scheme, comprise the cable termination with extraction channel and thermometric passage, which is provided with for the low-pressure side of stube cable and the high-pressure side for being connected high voltage source, enter extraction channel close on high-tension side temperature-measuring optical fiber from thermometric passage, and oppositely extension is drawn from low-pressure side.
The beneficial effects of the utility model are:
1, measured temperature is conductor temperature, without the need to conversion, is not affected by the external environment;
2, lay with cable, without the need to secondary installing, simple to operate;
3, optical fiber present position electric field is almost nil, can not affect the transmission of optical fiber temperature-measurement signal;
4, fibre junction is without the need to drawing, and can not produce harmful effect to cable main insulation;
5, not overlapping with cable main insulation position, even if be damaged, the safe operation of cable also can not be affected.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the cutaway view of the utility model embodiment;
Fig. 2 is the cable connection diagram of the utility model embodiment;
Fig. 3 is light and the cable termination connection diagram of the utility model embodiment.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, scheme and effect fully.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
It should be noted that, if no special instructions, when a certain feature is called as " fixing ", " connection " in another feature, it can directly be fixed, be connected in another feature, also indirectly can fix, be connected in another feature.In addition, it is only relative to the mutual alignment relation of each part of the utility model in accompanying drawing that the upper and lower, left and right used in the utility model etc. describe.
In addition, unless otherwise defined, all technology used herein are identical with the implication that those skilled in the art understand usually with scientific terminology.The term used in specification is herein to describe specific embodiment, instead of in order to limit the present invention.Term as used herein " and/or " comprise the arbitrary combination of one or more relevant Listed Items.
Referring to figs. 1 through Fig. 3, comprise band 10 and conductor 20, conductor 20 annular be distributed in band 10, be formed centrally thermometric passage 21 wherein, in thermometric passage 21, be provided with temperature-measuring optical fiber 30, its measure temperature be conductor temperature, without the need to conversion; In addition the electric field of temperature-measuring optical fiber 30 present position is almost nil, thus can not affect the transmission of optical fiber temperature-measurement signal.
Preferably, be provided with sheath outside temperature-measuring optical fiber 30, make it have certain withstand voltage resistance to tension, further preferably, temperature-measuring optical fiber 30 is in snakelike being distributed in thermometric passage 21.Because optical fiber 30 is in cable conductor center, the deformation that this position produces when cable bend is minimum, and the optical fiber of snakelike distribution simultaneously has certain flexible surplus, thus greatly reduces the possibility by damage.
For the ease of the connection between cable, be also provided with aluminium hydraulic pressed connecting pipe 50, for ensureing the extraction that continues of optical fiber, preferably aluminium hydraulic pressed connecting pipe 50 length appropriateness need be lengthened, ensureing that its hollow space is at about 150mm; On the tube wall of aluminium hydraulic pressed connecting pipe 50, be axially arranged with the opening of at least one along it, like this, can the crimping work of advanced column conductor, then optical fiber is drawn from opening part and continue, again optical fiber splice is put after having continued among back pressure adapter.
Also comprise the cable termination 40 with extraction channel and thermometric passage, which is provided with for the low-pressure side 41 of stube cable and the high-pressure side 42 for being connected high voltage source, under normal circumstances, optical fiber 30 is drawn from high-pressure side 42 with thermometric passage, the protection after optical fiber extraction and Insulation Problems must be related to like this, and now optical fiber is in hyperbaric environment, process is difficulty very, in order to address this problem, optical fiber 30 close to high-pressure side 42 proceeds in extraction channel by thermometric passage, and draw from low-pressure side 41 after oppositely extending, because low-pressure side 41 is positioned at the base position of cable termination 40, zero potential is in because being connected with the earth, avoid bring when optical fiber is drawn in hyperbaric environment fixing, the problems such as protection and insulation configuration.
Preferably, extraction channel can be arranged separately, can be also original structure on cable termination 40, as oil duct etc.
More than that better enforcement of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (5)
1. can the cable of accurate temperature measurement, comprise band, and be coated on the conductor in described band, it is characterized in that: described conductor loop be distributed in described band, be wherein formed centrally thermometric passage, in described thermometric passage, be provided with temperature-measuring optical fiber.
2. cable according to claim 1, is characterized in that: be provided with sheath outside described temperature-measuring optical fiber.
3. cable according to claim 2, is characterized in that: what described temperature-measuring optical fiber was snakelike is arranged in described thermometric passage.
4. the cable according to any one of claims 1 to 3, is characterized in that: comprise the aluminium hydraulic pressed connecting pipe for connecting between described conductor, the tube wall of described aluminium hydraulic pressed connecting pipe is axially arranged with the opening at least one place along it.
5. cable according to claim 4, it is characterized in that: comprise the cable termination with extraction channel and thermometric passage, which is provided with for the low-pressure side of stube cable and the high-pressure side for being connected high voltage source, enter extraction channel close to described on high-tension side temperature-measuring optical fiber from described thermometric passage, and oppositely extension is drawn from described low-pressure side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853590.8U CN204375474U (en) | 2014-12-26 | 2014-12-26 | A kind of can the cable of accurate temperature measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853590.8U CN204375474U (en) | 2014-12-26 | 2014-12-26 | A kind of can the cable of accurate temperature measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204375474U true CN204375474U (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420853590.8U Active CN204375474U (en) | 2014-12-26 | 2014-12-26 | A kind of can the cable of accurate temperature measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204375474U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994359A (en) * | 2017-12-22 | 2018-05-04 | 深圳市沃尔核材股份有限公司 | The adapter assembly and connector connecting method of built-in fiber cable |
| WO2019201611A1 (en) * | 2018-04-20 | 2019-10-24 | Innogy Se | Power cable, in particular submarine cable, which can be laid underground |
| WO2020099615A1 (en) * | 2018-11-15 | 2020-05-22 | Abb Schweiz Ag | High-voltage lead-through device and arrangement for handling data of a high-voltage lead-through device |
-
2014
- 2014-12-26 CN CN201420853590.8U patent/CN204375474U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994359A (en) * | 2017-12-22 | 2018-05-04 | 深圳市沃尔核材股份有限公司 | The adapter assembly and connector connecting method of built-in fiber cable |
| CN107994359B (en) * | 2017-12-22 | 2024-02-02 | 深圳市沃尔核材股份有限公司 | Joint assembly of built-in optical fiber cable and joint connection method |
| WO2019201611A1 (en) * | 2018-04-20 | 2019-10-24 | Innogy Se | Power cable, in particular submarine cable, which can be laid underground |
| WO2020099615A1 (en) * | 2018-11-15 | 2020-05-22 | Abb Schweiz Ag | High-voltage lead-through device and arrangement for handling data of a high-voltage lead-through device |
| US11269002B2 (en) | 2018-11-15 | 2022-03-08 | Hitachi Energy Switzerland Ag | High-voltage lead-through device and arrangement for handling data of a high-voltage lead-through device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |