CN204924477U - Cable temperature measuring device of cable load circulation system - Google Patents
Cable temperature measuring device of cable load circulation system Download PDFInfo
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- CN204924477U CN204924477U CN201520729027.4U CN201520729027U CN204924477U CN 204924477 U CN204924477 U CN 204924477U CN 201520729027 U CN201520729027 U CN 201520729027U CN 204924477 U CN204924477 U CN 204924477U
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- cable
- thermopair
- thermocouple
- lead
- measurement mechanism
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- 238000009413 insulation Methods 0.000 claims abstract description 56
- 239000004020 conductor Substances 0.000 claims abstract description 47
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 28
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 28
- 238000009529 body temperature measurement Methods 0.000 claims description 20
- 239000004519 grease Substances 0.000 claims description 13
- 229920001296 polysiloxane Polymers 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000741 silica gel Substances 0.000 claims description 12
- 229910002027 silica gel Inorganic materials 0.000 claims description 12
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model discloses a cable temperature measuring device of cable load circulation system, include: the cable to be tested consists of a cable sheath layer, an insulation shielding layer, an XLPE insulation layer, a conductor shielding layer and a conductor wire core in sequence from outside to inside, and a cutting area is arranged on one side surface of the cable to be tested; the cutting area is cut into from the side cutting part of the cable to be measured, and the cutting area sequentially cuts into the cable sheath layer, the insulation shielding layer, the XLPE insulation layer and the conductor shielding layer to reach the outer side surface of the conductor wire core; and a first thermocouple, a second thermocouple, a third thermocouple and a fourth thermocouple are respectively laid between the structural layers, and a first lead, a second lead, a third lead and a fourth lead which correspond to the first thermocouple, the second thermocouple, the third thermocouple and the fourth thermocouple are respectively led out from the side cutting positions. Adopt the utility model discloses technical scheme can accurate measurement cable each structural layer's temperature, improves the measuring precision.
Description
Technical field
The utility model relates to technical field of electric power, particularly relates to a kind of cable temperature measurement mechanism of cable duty cycle system.
Background technology
At present, when carrying out the test of direct current cables duty cycle, the measuring method of analog loopback cable temperature is mainly punched to cable with electric drill, beats dark to the tested cable structural sheet of bit contact, nedle thermocouple is inserted in aperture the thermometric realized each structural sheet.The shortcoming of the method is the surface that thermopair can not ensure accurately to be inserted into tested construction of cable layer, is easy to cause measurement data inaccurate.Cable is easy to cause crimp through boring in addition, affects thermometric effect.Duty cycle system needs the temperature of the very accurately each layer of control simulation cable, but existing measuring method precision is lower, cannot meet testing requirements.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of cable temperature measurement mechanism of cable duty cycle system, and the temperature of each structural sheet of energy Measurement accuracy cable, improves the precision measured.
For solving above technical matters, the utility model embodiment provides a kind of cable temperature measurement mechanism of cable duty cycle system, comprise: the cable under test be made up of the coat layer of power cable, insulation screen, XLPE insulation course, conductor shield and conductor thread core successively from outside to inside, a side of described cable under test is provided with cutting zone;
Described cutting zone is cut by the cut place, side of described cable under test, cuts described the coat layer of power cable, insulation screen, XLPE insulation course, conductor shield successively, arrives the lateral surface of described conductor thread core;
The first thermopair is laid with between described conductor thread core and described conductor shield; First lead-in wire of described first thermopair is drawn from cut place, described side;
The second thermopair is laid with between described conductor shield and described XLPE insulation course; Second lead-in wire of described second thermopair is drawn from cut place, described side;
Three thermocouple is laid with between described XLPE insulation course and described insulation screen; 3rd lead-in wire of described three thermocouple is drawn from cut place, described side;
The 4th thermopair is laid with between described insulation screen and described the coat layer of power cable; 4th lead-in wire of described 4th thermopair is drawn from cut place, described side.
Further, the cut surface of cut place, described side is coated with heat conductive silica gel;
And the inside surface between described conductor thread core and described conductor shield, inside surface, the inside surface between described XLPE insulation course and described insulation screen and the inside surface between described insulation screen and described the coat layer of power cable between described conductor shield and described XLPE insulation course are coated with heat conductive silica gel.
Further, the thickness of described heat conductive silica gel is between for 0.1 millimeter to 0.5 millimeter.
Further, the head of described first thermopair is coated with heat-conducting silicone grease, and is fixed between described conductor thread core and described conductor shield by the first para tape;
The head of described second thermopair is coated with heat-conducting silicone grease, and is fixed between described conductor shield and described XLPE insulation course by the second para tape;
The head of described three thermocouple is coated with heat-conducting silicone grease, and is fixed between described XLPE insulation course and described insulation screen by the 3rd para tape;
The head of described 4th thermopair is coated with heat-conducting silicone grease, and is fixed between described insulation screen and described the coat layer of power cable by the 4th para tape.
Further, described first thermopair, the second thermopair, three thermocouple and the 4th thermopair are SMD thermopair.
Further, described cable temperature measurement mechanism also comprises: temperature measuring set;
Described temperature measuring set goes between with draw from cut place, described side described first respectively, second go between, the 3rd go between and the 4th go between and be connected.
Visible, the cable temperature measurement mechanism of a kind of cable duty cycle system that the utility model embodiment provides, by laying thermopair between each structural sheet, each thermopair is the lead-in wire of cut place extraction from the side respectively, temperature measuring set directly can measure the temperature between each structural sheet, insert cable compared to existing employing needle-like thermopair punching and carry out measuring tempeature, the utility model solves inaccurate, the yielding problem in measuring position, avoid the error of radial heat transfer, can realize accurately, synchronously, effectively measure each structural sheet hull-skin temperature of cable.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the cable temperature measurement mechanism of the cable duty cycle system that the utility model provides;
Fig. 2 is the partial structurtes schematic diagram of a kind of embodiment of the cable temperature measurement mechanism of the cable duty cycle system that the utility model provides;
Fig. 3 is the structural representation of a kind of embodiment of the SMD thermopair that the utility model provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
It is the structural representation of a kind of embodiment of the cable temperature measurement mechanism of the cable duty cycle system that the utility model provides see Fig. 1 and Fig. 2, Fig. 1.Fig. 2 is the partial structurtes schematic diagram of a kind of embodiment of the cable temperature measurement mechanism of the cable duty cycle system that the utility model provides.Wherein, this cable temperature measurement mechanism comprises: the cable under test be made up of the coat layer of power cable 5, insulation screen 4, XLPE insulation course 3, conductor shield 2 and conductor thread core 1 successively from outside to inside.The side that this cable under test is a certain section is provided with cutting zone 6.Cutting zone 6 is cut by the cut place, side of cable under test, cuts the coat layer of power cable 5, insulation screen 4, XLPE insulation course 3, conductor shield 2 successively, arrives the lateral surface of described conductor thread core 1.The coat layer of power cable 5 comprises oversheath and protective metal shell.
As shown in Figure 2, be laid with the first thermopair a between conductor thread core 1 and conductor shield 2, first lead-in wire 11 of the first thermopair a is drawn cut place from the side.Between conductor shield 2 and XLPE insulation course 3, be laid with the second thermopair b, second lead-in wire 22 of the second thermopair b is drawn cut place from the side.Between XLPE insulation course 3 and insulation screen 4, be laid with three thermocouple c, the 3rd lead-in wire 33 of three thermocouple c is drawn from=cut place, side.Between insulation screen 4 and the coat layer of power cable 5, be laid with the 4th thermopair d, the 4th lead-in wire 44 of the 4th thermopair d is drawn cut place from the side.
In the present embodiment, the cut surface of cut place, side is coated with heat conductive silica gel, and the inside surface between conductor thread core 1 and conductor shield 2, the inside surface between conductor shield 2 and XLPE insulation course 3, the inside surface between XLPE insulation course 3 and insulation screen 4 and the inside surface between insulation screen 4 and the coat layer of power cable 5 are coated with heat conductive silica gel.
In the present embodiment, each structural sheet of cable under test has laid thermopair, evenly applies very thin one deck with heat conductive silica gel at adjacent featured layer inside surface and both sides cut surface, and the thickness of heat conductive silica gel is between for 0.1 millimeter to 0.5 millimeter.Heat conductive silica gel has high-adhesion energy and superpower heat conductivility, can fill the air-gap between surface of contact, make close contact between layers, do not affect heat trnasfer.
In the present embodiment, the head of the first thermopair a is coated with heat-conducting silicone grease, and is fixed between conductor thread core 1 and conductor shield 2 by the first para tape.The head of the second thermopair b is coated with heat-conducting silicone grease, and is fixed between conductor shield 2 and XLPE insulation course 3 by the second para tape.The head of three thermocouple c is coated with heat-conducting silicone grease, and is fixed between XLPE insulation course 3 and insulation screen 4 by the 3rd para tape.The head of the 4th thermopair d is coated with heat-conducting silicone grease, and is fixed between insulation screen 4 and the coat layer of power cable 5 by the 4th para tape.Heat-conducting silicone grease has high thermal conductivity, splendid heat conductivility, adsorbability and stability, can fill the air-gap of thermopair and construction of cable layer surface of contact, heat conduction is not obstructed.
In the present embodiment, the first thermopair a, the second thermopair b, three thermocouple c and the 4th thermopair d are SMD thermopair.Greatly, closely, thermometric accuracy is high, reaction velocity is fast, volume is little and convenient fixed installation in contact for SMD thermopair and structural sheet contact area to be measured.Detailed content can be the structural representation of a kind of embodiment of the SMD thermopair that the utility model provides see Fig. 3, Fig. 3.
One as the present embodiment is illustrated, and this cable temperature measurement mechanism also comprises: temperature measuring set.What temperature measuring set was drawn with cut place from the side respectively first goes between and 11, second goes between and the 22, the 3rd go between and 33 and the 4th go between and 44 to be connected.Temperature measuring set is by the temperature directly measured between each structural sheet that goes between.
In order to structure of the present utility model is better described, below installation steps of the present utility model, be specially: a certain section that chooses cable under test in direct current cables duty cycle system simulation loop, its the coat layer of power cable 5 (comprising oversheath and protective metal shell), insulation screen 4, XLPE insulation course 3, conductor shield 2 are cut strip off, successively until expose conductor thread core 1.Lay the first thermopair a on exposed conductor thread core 1 surface, then recovered back successively by each structural sheet peeled off, its first extension line 11 from the side cut place is drawn.In like manner, lay the second thermopair b, three thermocouple c and the 4th thermopair d respectively at conductor shielding 2, XLPE insulation course 3, insulation screen 4 outside surface, its extension line is drawn from the cut place, side of each layer; Each structural sheet has laid thermopair, evenly applies, ensure close contact between layers with heat conductive silica gel at adjacent featured layer inside surface and both sides cut surface; Recovery completes backward simulation loop galvanization, measures the temperature of each thermopair laying layer of cable after thermally-stabilised.
Therefore, the cable temperature measurement mechanism of a kind of cable duty cycle system that the utility model embodiment provides, by laying thermopair between each structural sheet, each thermopair is the lead-in wire of cut place extraction from the side respectively, temperature measuring set directly can measure the temperature between each structural sheet, insert cable compared to existing employing needle-like thermopair punching and carry out measuring tempeature, the utility model solves inaccurate, the yielding problem in measuring position, avoid the error of radial heat transfer, can realize accurately, synchronously, effectively measure each structural sheet hull-skin temperature of cable.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (6)
1. the cable temperature measurement mechanism of a cable duty cycle system, comprise: the cable under test be made up of the coat layer of power cable, insulation screen, XLPE insulation course, conductor shield and conductor thread core successively from outside to inside, it is characterized in that, a side of described cable under test is provided with cutting zone;
Described cutting zone is cut by the cut place, side of described cable under test, cuts described the coat layer of power cable, insulation screen, XLPE insulation course, conductor shield successively, arrives the lateral surface of described conductor thread core;
The first thermopair is laid with between described conductor thread core and described conductor shield; First lead-in wire of described first thermopair is drawn from cut place, described side;
The second thermopair is laid with between described conductor shield and described XLPE insulation course; Second lead-in wire of described second thermopair is drawn from cut place, described side;
Three thermocouple is laid with between described XLPE insulation course and described insulation screen; 3rd lead-in wire of described three thermocouple is drawn from cut place, described side;
The 4th thermopair is laid with between described insulation screen and described the coat layer of power cable; 4th lead-in wire of described 4th thermopair is drawn from cut place, described side.
2. the cable temperature measurement mechanism of cable duty cycle system according to claim 1, is characterized in that, the cut surface of cut place, described side is coated with heat conductive silica gel;
And the inside surface between described conductor thread core and described conductor shield, inside surface, the inside surface between described XLPE insulation course and described insulation screen and the inside surface between described insulation screen and described the coat layer of power cable between described conductor shield and described XLPE insulation course are coated with heat conductive silica gel.
3. the cable temperature measurement mechanism of cable duty cycle system according to claim 2, is characterized in that, the thickness of described heat conductive silica gel is between for 0.1 millimeter to 0.5 millimeter.
4. the cable temperature measurement mechanism of cable duty cycle system according to claim 1, is characterized in that,
The head of described first thermopair is coated with heat-conducting silicone grease, and is fixed between described conductor thread core and described conductor shield by the first para tape;
The head of described second thermopair is coated with heat-conducting silicone grease, and is fixed between described conductor shield and described XLPE insulation course by the second para tape;
The head of described three thermocouple is coated with heat-conducting silicone grease, and is fixed between described XLPE insulation course and described insulation screen by the 3rd para tape;
The head of described 4th thermopair is coated with heat-conducting silicone grease, and is fixed between described insulation screen and described the coat layer of power cable by the 4th para tape.
5. the cable temperature measurement mechanism of cable duty cycle system according to claim 4, is characterized in that,
Described first thermopair, the second thermopair, three thermocouple and the 4th thermopair are SMD thermopair.
6. the cable temperature measurement mechanism of the cable duty cycle system according to any one of claim 1 to 5, is characterized in that, described cable temperature measurement mechanism also comprises: temperature measuring set;
Described temperature measuring set goes between with draw from cut place, described side described first respectively, second go between, the 3rd go between and the 4th go between and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729027.4U CN204924477U (en) | 2015-09-18 | 2015-09-18 | Cable temperature measuring device of cable load circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729027.4U CN204924477U (en) | 2015-09-18 | 2015-09-18 | Cable temperature measuring device of cable load circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204924477U true CN204924477U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520729027.4U Active CN204924477U (en) | 2015-09-18 | 2015-09-18 | Cable temperature measuring device of cable load circulation system |
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| CN (1) | CN204924477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113823464A (en) * | 2021-10-20 | 2021-12-21 | 东莞市瀛通电线有限公司 | Wire rod sheath temperature detection device and detection method thereof |
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2015
- 2015-09-18 CN CN201520729027.4U patent/CN204924477U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113823464A (en) * | 2021-10-20 | 2021-12-21 | 东莞市瀛通电线有限公司 | Wire rod sheath temperature detection device and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210720 Address after: 510080 West Tower 13-20 Floor, Shui Jungang 6 and 8 Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: China South Power Grid International Co.,Ltd. Patentee after: SOUTH CHINA University OF TECHNOLOGY Address before: 510080 West Tower 13-20 Floor, Shui Jungang 6 and 8 Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: China South Power Grid International Co.,Ltd. Patentee before: POWER GRID TECHNOLOGY RESEARCH CENTER. CHINA SOUTHERN POWER GRID Patentee before: SOUTH CHINA University OF TECHNOLOGY |