CN112484879A - Fluorescent optical fiber temperature sensor probe fixing device - Google Patents
Fluorescent optical fiber temperature sensor probe fixing device Download PDFInfo
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- CN112484879A CN112484879A CN202011361796.5A CN202011361796A CN112484879A CN 112484879 A CN112484879 A CN 112484879A CN 202011361796 A CN202011361796 A CN 202011361796A CN 112484879 A CN112484879 A CN 112484879A
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- temperature sensor
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- 239000000523 sample Substances 0.000 title claims abstract description 69
- 239000013307 optical fiber Substances 0.000 title claims abstract description 40
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 description 13
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000009529 body temperature measurement Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a fluorescent optical fiber temperature sensor probe fixing device, which comprises: the probe placing hole is formed in the cushion block, and the probe of the fluorescent optical fiber temperature sensor is positioned in the probe placing hole; the fixed tube is arranged on the cushion block, the fixed tube is communicated with the probe placing hole, and an optical fiber is inserted in the fixed tube; the fixing assembly is used for fixing the optical fiber device positioned in the fixing tube, and in the invention, the sensor probe is positioned in the placing hole arranged in the cushion block and is fixed by the fixing tube, so that the probe cannot be collided, and the probe is effectively protected; the optical fiber connected with the probe and positioned in the fixed tube is fixed by the fixed assembly, and the joint of the optical fiber and the probe cannot be bent, so that the oil temperature measuring effect of the transformer is ensured.
Description
Technical Field
The invention relates to the technical field of transformer temperature measurement, in particular to a probe fixing device of a fluorescent optical fiber temperature sensor.
Background
As one of the important electrical devices in the power system, the maintenance of the normal operation of the power transformer is a basic guarantee for reliable power supply of the whole power system. In recent years, with the development of economy in China and the improvement of the living standard of people, the power consumption demand is rapidly increased, a power system is developed towards the direction of ultrahigh voltage and high capacity, the fault rate of a transformer is increased, according to statistics of related data, the average accident rate of the transformer with the voltage of 110kV or more is over 0.69%, and the insulation aging, the breakdown of a transformer winding and the burning accident of the transformer due to overload operation account for over 75% of the accident rate. For high voltage oil-filled power transformers, the lifetime is mainly determined by the lifetime of the solid insulation (fiber paper), and the main factor contributing to the aging of the insulation is the long-term overheating operation of the insulation material. The thermal effect is a decisive factor of transformer aging, and the service life of the transformer is determined by the hot spot temperature. From the viewpoint of the insulation operation life of the transformer, it is generally considered that six degrees law should be followed: the average annual temperature is 98 ℃, the normal service life is realized, when the average annual temperature exceeds or does not reach 98 ℃, the service life of the transformer is reduced by half or doubled when the temperature is increased or reduced by 6 ℃, the temperature measurement of the oil-immersed power transformer is influenced by the interference of high voltage, high current, high insulation and strong electromagnetic field in the transformer, and a thermocouple and a thermal resistance sensor used based on the traditional electric signal measurement technology cannot meet the technical requirement of measuring the temperature of a winding in the transformer. Due to the lack of transformer hot spot temperature monitoring equipment, the existing transformer only operates at 50-60% of rated capacity, which causes great waste of the existing capacity.
Chinese utility model patent with publication number CN207966714U discloses a use cushion and fluorescence optic fibre temperature measurement transformer coil, directly insert optic fibre temperature measurement probe in this patent in the cushion, do not have the probe to fix, the probe is taken out easily when the cushion removes, the probe can not by fine protection.
Disclosure of Invention
In view of this, the present invention provides a fluorescent optical fiber temperature sensor probe fixing device, which is used for fixing a probe firmly, effectively protecting the probe, preventing the joint of the probe and an optical fiber from bending, and ensuring the oil temperature measurement effect of a transformer, in order to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fluorescent fiber optic temperature sensor probe fixture, comprising:
the probe placing hole is formed in the cushion block, and the probe of the fluorescent optical fiber temperature sensor is positioned in the probe placing hole;
the fixed tube is arranged on the cushion block, the fixed tube is communicated with the probe placing hole, and an optical fiber is inserted in the fixed tube;
a securing assembly for securing an optical fiber within a securing tube.
Furthermore, the fixed assembly comprises a circular ring sleeved on the optical fiber, the circular ring is detachably arranged at the top end of the fixed pipe, the top of the circular ring is circumferentially provided with a plurality of clamping pieces, and the clamping pieces are provided with driving assemblies for driving the clamping pieces to be folded.
Furthermore, the fixed pipe can be detachably arranged on the cushion block, and the area of the top end of the probe is larger than the area of an inner ring of the fixed pipe.
Furthermore, the fixed pipe and the fixed assembly are formed by splicing a left half part and a right half part.
Furthermore, the driving assembly for driving the clamping pieces to fold is a sleeve ring, the inner circumferential surface of the sleeve ring is in threaded connection with the outer circumferential surface of the clamping pieces, the sleeve ring is formed by splicing a left half ring and a right half ring, and a limiting plate for preventing the sleeve ring from being separated from the circular ring is arranged at the bottom of the sleeve ring.
Furthermore, the deformation temperature of the cushion block, the fixing pipe and the fixing assembly is more than 150 ℃.
The invention has the beneficial effects that:
the invention discloses a fluorescent optical fiber temperature sensor probe fixing device, wherein a sensor probe is positioned in a placing hole arranged in a cushion block and is fixed by a fixing tube, the probe cannot be collided, and the probe is effectively protected; the optical fiber connected with the probe and positioned in the fixed tube is fixed by the fixed assembly, and the joint of the optical fiber and the probe cannot be bent, so that the oil temperature measuring effect of the transformer is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic exploded view of FIG. 1;
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a third embodiment of the present invention;
the probe comprises a cushion block 1, a probe placing hole 2, a fixing tube 3, a circular ring 4, a clamping piece 5, a lantern ring 6, a limiting plate 7, a left half tube 8, a right half tube 9, a left fixing piece 10, a right fixing piece 11, a first protrusion 12, a first clamping groove 13 and a second protrusion 14.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-2, a fluorescent optical fiber temperature sensor probe fixing device according to a first embodiment of the present invention includes:
the probe placing device comprises a cushion block 1, a probe placing hole 2 is processed in the cushion block 1, and a probe of a fluorescent optical fiber temperature sensor is positioned in the probe placing hole 2;
fixed subassembly, fixed subassembly are used for the fixed optic fibre that is located fixed pipe 3, prevent when pulling optic fibre removes cushion 1, and optic fibre and sensor probe's junction is buckled, leads to the sensor to damage, and fixed subassembly is including cup jointing ring 4 on optic fibre, and ring 4 can be dismantled and set up on fixed pipe 3 tops, and the setting mode is: the ring 4 is sleeved outside the optical fiber, an internal thread is processed on the inner peripheral surface of the ring 4, an external thread matched with the internal thread is processed on the top surface of the fixed tube 3, and the detachable connection between the ring 4 and the top of the fixed tube 3 is realized; the top of the ring 4 is a circumference form integrated into one piece and is provided with five clamping pieces 5, the driving assembly that the driving clamping piece 5 is folded is arranged on the clamping piece 5, the driving assembly is a lantern ring 6, an internal thread is processed on the inner peripheral surface of the lantern ring 6, an external thread matched with the internal thread is processed on the outer peripheral surface of the clamping piece 5, the lantern ring 6 is in threaded connection outside the clamping piece 5, the lantern ring 6 is screwed upwards, the top of the clamping piece 5 is gradually folded, the optical fiber is tightly held by the inner peripheral surface of the clamping piece 5, fixing of the optical fiber positioned in the fixed pipe 3 is realized, a gap is reserved between the clamping piece and the clamping piece at the moment, a gap is reserved between the optical fiber positioned in the fixed pipe and the inner wall of the fixed pipe, an inclined hole (not marked in the figure) communicated with the side wall.
After the sensor probe and the optical fiber positioned in the fixed pipe 3 are fixed, the optical fiber sensor is tested, the probe is ensured to be intact and can normally measure the temperature, then the cushion block 1 is installed in the transformer, the connection part of the sensor probe, the probe and the optical fiber is effectively protected, the possibility of damage in the installation process is low, the probability of reinstalling the optical fiber temperature sensor when the transformer is assembled is low, and the assembly efficiency of the transformer is improved.
In order to ensure the quality of the transformer oil, the deformation temperatures of the cushion block 1, the fixed pipe 3 and the fixed assembly are all higher than 150 ℃.
Example two
As shown in fig. 3, a second embodiment of the present invention is different from the first embodiment in that the fixed tube 3 and the fixed assembly are formed by splicing a left half tube and a right half tube, the fixed tube 3 is formed by splicing a left half tube 8 and a right half tube 9, the whole ring 4 and the clamping piece 5 are divided into two parts, which are divided into a left fixing member 10 and a right fixing member 11, a first protrusion 12 is formed on the left half tube 8 and the left fixing member 10, a second groove 13 is formed on the right half tube 9 and the right fixing member 11, the first protrusion 12 is inserted into the second groove 13 and is in interference connection with the second groove 13, so as to achieve connection between the left half tube 8 and the right half tube 9, the left fixing member 10 and the right fixing member 11.
EXAMPLE III
In the actual operation process, the situation that the cushion block 1 is screwed after the left half pipe 8 and the right half pipe 9 are spliced, and the lantern ring 6 is not installed after the left fixing piece 10 and the right fixing piece 11 are spliced often occurs, at this time, the cushion block 1 needs to be screwed off, and then the lantern ring 6 is sleeved from bottom to top, so that the probe is likely to touch a sensor probe in the process, and the probe is damaged, as shown in fig. 4, the third embodiment of the invention is shown, the invention is different from the second embodiment in that the lantern ring 6 is formed by splicing a left half ring and a right half ring, the two half rings are integrally formed on two sides of the half rings, corresponding through holes are punched between the two opposite protrusions 14, bolts are inserted in the through holes, nuts are mounted at the other ends of the bolts, splicing of the two half rings is realized, the optical fiber probe is fixed at one time; after cushion 1 is fixed, optic fibre need rotate certain angle probably appears, make the more reasonable condition of optic fibre wiring, can twist out the jack with fixed 3 parts of pipe this moment, twist down lantern ring 6 again, press from both sides tight piece 5 and no longer hold optic fibre tightly, rotatory optic fibre to suitable position back, twist fixed pipe 3 again, on twist lantern ring 6, when not holding optic fibre tightly in order to prevent to press from both sides tight piece 5, lantern ring 6 breaks away from ring 4, the bonding prevents that lantern ring 6 from breaking away from ring 4's limiting plate 7 bottom ring 4.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A fluorescent optical fiber temperature sensor probe fixing device is characterized by comprising:
the probe placing hole (2) is formed in the cushion block (1), and the lower part of the probe of the fluorescent optical fiber temperature sensor is positioned in the probe placing hole (2);
the fixed tube (3) is arranged on the cushion block (1), the fixed tube (3) is communicated with the probe placing hole (2), and an optical fiber is inserted into the fixed tube (3);
a fixing assembly for fixing the optical fibre located within the fixing tube (3).
2. The fluorescent optical fiber temperature sensor probe fixing device is characterized in that the fixing assembly comprises a circular ring (4) sleeved on an optical fiber, the circular ring (4) is detachably arranged at the top end of the fixing tube (3), a plurality of clamping pieces (5) are circumferentially arranged at the top of the circular ring (4), and a driving assembly for driving the clamping pieces (5) to be folded is arranged on each clamping piece (5).
3. The fluorescent optical fiber temperature sensor probe fixing device is characterized in that the fixing tube (3) is detachably arranged on the cushion block (1), and the area of the top end of the probe is larger than that of the inner ring of the fixing tube (3).
4. The fluorescent optical fiber temperature sensor probe fixing device according to claim 3, wherein the fixing tube (3) and the fixing component are formed by splicing a left half and a right half.
5. The fluorescent optical fiber temperature sensor probe fixing device according to claim 4, wherein the driving component for driving the clamping piece (5) to fold is a sleeve ring (6), the inner circumferential surface of the sleeve ring (6) is in threaded connection with the outer circumferential surface of the clamping piece (5), the sleeve ring (6) is formed by splicing a left half ring and a right half ring, and a limiting plate (6) for preventing the sleeve ring (6) from being separated from the circular ring (4) is arranged at the bottom of the sleeve ring (6).
6. The fluorescent optical fiber temperature sensor probe fixing device according to any one of claims 1 to 5, wherein the deformation temperature of the cushion block (1), the fixing tube (3) and the fixing assembly is more than 150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011361796.5A CN112484879A (en) | 2020-11-28 | 2020-11-28 | Fluorescent optical fiber temperature sensor probe fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011361796.5A CN112484879A (en) | 2020-11-28 | 2020-11-28 | Fluorescent optical fiber temperature sensor probe fixing device |
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| Publication Number | Publication Date |
|---|---|
| CN112484879A true CN112484879A (en) | 2021-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011361796.5A Pending CN112484879A (en) | 2020-11-28 | 2020-11-28 | Fluorescent optical fiber temperature sensor probe fixing device |
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| Country | Link |
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| CN (1) | CN112484879A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201359908Y (en) * | 2009-02-26 | 2009-12-09 | 浙江电力变压器有限公司 | Cushion block structure laid by fiber optic temperature measuring probe |
| CN106468599A (en) * | 2016-07-19 | 2017-03-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Oil-immersed type transformer fiber optic temperature measuring probe fixing device |
| CN209706962U (en) * | 2019-05-27 | 2019-11-29 | 湖北惠祥电子科技有限公司 | A kind of water heater temperature sensor shell |
| CN110752456A (en) * | 2019-10-31 | 2020-02-04 | 松塔知识产权运营武汉有限公司 | Safety connecting device for cable |
| CN210464672U (en) * | 2019-09-27 | 2020-05-05 | 珠海润电科技有限公司 | Infrared online temperature measurement probe of power equipment |
| CN211452630U (en) * | 2019-12-31 | 2020-09-08 | 福建船政交通职业学院 | Optical fiber temperature measuring probe fixing device applied to magnetic material |
| CN211855607U (en) * | 2020-05-14 | 2020-11-03 | 山东电工电气集团有限公司 | Temperature measurement optical fiber fixing device for oil-immersed transformer winding |
-
2020
- 2020-11-28 CN CN202011361796.5A patent/CN112484879A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201359908Y (en) * | 2009-02-26 | 2009-12-09 | 浙江电力变压器有限公司 | Cushion block structure laid by fiber optic temperature measuring probe |
| CN106468599A (en) * | 2016-07-19 | 2017-03-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Oil-immersed type transformer fiber optic temperature measuring probe fixing device |
| CN209706962U (en) * | 2019-05-27 | 2019-11-29 | 湖北惠祥电子科技有限公司 | A kind of water heater temperature sensor shell |
| CN210464672U (en) * | 2019-09-27 | 2020-05-05 | 珠海润电科技有限公司 | Infrared online temperature measurement probe of power equipment |
| CN110752456A (en) * | 2019-10-31 | 2020-02-04 | 松塔知识产权运营武汉有限公司 | Safety connecting device for cable |
| CN211452630U (en) * | 2019-12-31 | 2020-09-08 | 福建船政交通职业学院 | Optical fiber temperature measuring probe fixing device applied to magnetic material |
| CN211855607U (en) * | 2020-05-14 | 2020-11-03 | 山东电工电气集团有限公司 | Temperature measurement optical fiber fixing device for oil-immersed transformer winding |
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Application publication date: 20210312 |