CN103134435A - Ice coating monitoring device for electric transmission line - Google Patents
Ice coating monitoring device for electric transmission line Download PDFInfo
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- CN103134435A CN103134435A CN 201110383014 CN201110383014A CN103134435A CN 103134435 A CN103134435 A CN 103134435A CN 201110383014 CN201110383014 CN 201110383014 CN 201110383014 A CN201110383014 A CN 201110383014A CN 103134435 A CN103134435 A CN 103134435A
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- sensing unit
- transmission line
- housing
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Abstract
The invention discloses an ice coating monitoring device for an electric transmission line. The ice coating monitoring device comprises a sensing unit, a measuring unit, a control unit, a power supply for providing electric power for the measuring unit and the control unit and a cable of which one end is connected with a signal optical fiber in an optical fiber curved sensing unit, wherein the sensing unit comprises a shell and the optical fiber curved sensing unit; the optical fiber curved sensing unit comprises a curved support and a plurality of deformation teeth I and a plurality of deformation teeth II; a curved channel is formed between heads of a plurality of deformation teeth I and a plurality of deformation teeth II; the optical fiber curved sensing unit is positioned between the inner wall of shell and a sliding plate; the other end of the optical fiber is connected with the measuring unit; and the measuring unit is connected with the control unit. The ice coating monitoring device has the advantages of high accuracy, electromagnetic interference resistance and low cost in the microbend optical fiber sensing technology, and a light path of the ice coating monitoring device is a totally-enclosed, high in stability, large in dynamic range and long in service.
Description
Technical field
The present invention relates to a kind of monitoring device, particularly relate to a kind of device for monitoring icing of electric transmission line.
Background technology
" intelligent grid " is one of industrial development direction of country's " 12 " emphasis support, is mainly because electric system is the important infrastructure of whole national economy.In addition, China mountain area is more, and many important transmission lines of electricity need through complicated geographical environments such as mountain areas, and this has caused many difficulties for the monitoring of power circuit.The transmission line of electricity ice damage accident that occurs in southern many areas 2008 beginning of the years has caused huge loss to national economy.The patent of Chinese patent application number 200820029356.8 " a kind of device for monitoring tension of powerline ice-covering on-line monitoring system " has disclosed a kind of scheme, to be arranged between shaft tower and insulator chain by the sensing device that will comprise dynamometry strain gauge element and transmitter, the variation of monitoring force value reflects the state of the icing on transmission pressure, but this scheme Real-Time Monitoring simple in structure has certain practical value.But because the distance high-voltage conducting wires is nearer, electromagnetic field still has some impacts, and in addition, traditional dynamometry strain gauge element is all shorter, thereby has affected promoting the use of of this scheme as life-span, the stability of resistance strain gage.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of device for monitoring icing of electric transmission line is provided.the precision that this device for monitoring icing of electric transmission line has the microbend fiber sensing technology is high, anti-electromagnetic interference (EMI), the advantage that cost is low, and its light path is the totally enclosed good stability that has, large dynamic range, long-life and anti-vibration and have good anti-emi characteristics, its monitoring equipment can use the modal light source-light power meter of fiber optic communication field just passable, make the simple in structure of this power value monitoring device, processing and fabricating is convenient, cost is low and use-pattern is flexible, highly sensitive, result of use is good, and can be applicable to inflammable and explosive place, the possibility occurrence of decrease safent accident, use value is high, strong adaptability.
for achieving the above object, the technical solution used in the present invention is: a kind of device for monitoring icing of electric transmission line, comprise and be installed on the UB type link plate that is connected with shaft tower and the sensing unit between insulator chain, and be installed on test cell and control module on shaft tower, and the power supply that electric power is provided for test cell and control module, it is characterized in that: described sensing unit comprises a housing and a Fiber bending sensing unit, be provided with an opening on described housing, carriage release lever and opening are slidably matched, one end of described carriage release lever is connected with the slide plate that is positioned at described housing, the other end of described carriage release lever is positioned at outside housing and is connected with insulator chain, be provided with the draw ring that is connected with UB type link plate on described housing, a plurality of distortion teeth one and a plurality of distortion tooth two that described Fiber bending sensing unit comprises curved bracket and is laid in continuously relative both sides on described curved bracket, described a plurality of distortion tooth one and a plurality of distortion tooth two are the shaped form passage that between staggered corresponding laying and head both, formation is passed for one or more signal optical fibres, and described distortion tooth one and distortion tooth two correspondences are laid in the both sides of signal optical fibre, described Fiber bending sensing unit is between inner walls and slide plate, also comprise the optical cable that an end is connected with signal optical fibre in the Fiber bending sensing unit, the other end of described optical cable is connected with test cell, and test cell and control module join.
Above-mentioned a kind of device for monitoring icing of electric transmission line is characterized in that: between described slide plate and inner walls, the auxiliary spring in parallel with curved bracket is installed.
Above-mentioned a kind of device for monitoring icing of electric transmission line is characterized in that: described auxiliary spring is the combination of butterfly spring or butterfly spring.
Above-mentioned a kind of device for monitoring icing of electric transmission line is characterized in that: the counterbalance spring that is connected in series with curved bracket is installed between described inner walls and slide plate.
Above-mentioned a kind of device for monitoring icing of electric transmission line is characterized in that: described curved bracket is shaped form housing, spring, corrugated tube or cylinder.
Above-mentioned a kind of device for monitoring icing of electric transmission line is characterized in that: described power supply is solar cell or wind-power electricity generation accumulating system.
Above-mentioned a kind of device for monitoring icing of electric transmission line is characterized in that: described control module connects wireless transmit/receive units.
Above-mentioned a kind of device for monitoring icing of electric transmission line is characterized in that: described optical cable is full non-metallic optical fiber cables.
The present invention compared with prior art has the following advantages:
1, simple in structure, processing and fabricating is easy, input cost is low and use-pattern is flexible, highly sensitive.
2, by adopting the monitoring device based on the optical fiber micro-bending sensing technology can improve measuring accuracy, and have good anti-electromagnetic interference capability, corrosion resistance, have simultaneously good shock resistance, be suitable for the Practical Project environmental baseline.
3, its totally enclosed light path detection has improved stability, the reliability of Fibre Optical Sensor unit, has increased the security of power value sensing device, and has been suitable for being applied in inflammable and explosive place.
4, adopt nonmetallic optical cable, test cell, control module and power supply can be placed on shaft tower the position nearer apart from ground, can keep in repair or safeguard test cell, control module or power supply in not stoppage in transit of transmission line of electricity situation, and reduce the impact of high-voltage electromagnetic field on parts such as test cell, control modules.
5, but device for monitoring icing of electric transmission line of the present invention has the characteristic of larger dynamic range Real-Time Monitoring, can effectively monitor the wire running status of transmission line of electricity, not only can be used for monitoring wire icing, simultaneously the parameters such as the vibration of wire, pulling force are monitored, can become the important component part of " intelligent grid ", have more wide application prospect.
In sum, the present invention is simple in structure, reasonable in design, processing and fabricating convenient, cost is low and use-pattern is flexible, highly sensitive, the monitoring dynamic range is large, practical value is high, and be suitable for inflammable and explosive and strong electromagnetic interference environment, prevent the generation of the accidents such as powerline ice-covering and wire tension be abnormal, have broad application prospects.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the first embodiment of the present invention.
Fig. 2 is the inner structure schematic diagram of sensing unit in invention the first embodiment.
Fig. 3 is the structural representation of box house in invention the first embodiment.
Fig. 4 is the structural representation of Fiber bending sensing unit in invention the first embodiment.
Fig. 5 is the cross-sectional structure schematic diagram of Fiber bending sensing unit in Fig. 4.
Fig. 6 is the structural representation of Fiber bending sensing unit in the second embodiment of the present invention.
Fig. 7 is the structural representation of Fiber bending sensing unit in the third embodiment of the present invention.
Fig. 8 is the enlarged drawing at A place in Fig. 7.
Fig. 9 is the structural representation of Fiber bending sensing unit in the 4th kind of embodiment of invention.
Figure 10 is that Fig. 9 is along the A-A end view drawing.
Description of reference numerals:
The 1-optical cable; The 2-housing; The 3-top cover;
4-1-is out of shape tooth one; 4-2-is out of shape tooth two; The 5-test cell;
6-Fiber bending sensing unit; The 7-control module; The 10-carriage release lever;
The 11-counterbalance spring; The 12-slide plate; The 13-fin;
The 15-butterfly spring; The 16-groove; 19-shaped form housing;
The 20-casing; The 21-shaft tower; The 22-wireless transmit/receive units;
The 23-electric battery; The 24-Blast Furnace Top Gas Recovery Turbine Unit (TRT); 25-UB type link plate;
The 26-sensing unit; The 27-insulator chain; The 28-wire;
The 33-signal optical fibre; The 36-cylinder; The 37-gap;
The 38-spring; The 40-corrugated tube; The 42-tube wall.
Embodiment
as Fig. 1, Fig. 2, Fig. 3, Fig. 4 and a kind of device for monitoring icing of electric transmission line shown in Figure 5, comprise and be installed on the UB type link plate 25 that is connected with shaft tower 21 and the sensing unit 26 between insulator chain 27, and be installed on test cell 5 and control module 7 on shaft tower 21, and the power supply that electric power is provided for test cell 5 and control module 7, described sensing unit 26 comprises a housing 2 and a Fiber bending sensing unit 6, be provided with an opening on described housing 2, a carriage release lever 10 is slidably matched with opening, one end of described carriage release lever 10 is connected with the slide plate 12 that is positioned at described housing 2, the other end of described carriage release lever 10 is positioned at outside housing 2 and is connected with insulator chain 27, be provided with the draw ring that is connected with UB type link plate 25 on described housing, a plurality of distortion tooth one 4-1 and a plurality of distortion tooth two 4-2 that described Fiber bending sensing unit 6 comprises curved bracket and is laid in continuously relative both sides on described curved bracket, described a plurality of distortion tooth one 4-1 and a plurality of distortion tooth two 4-2 are the shaped form passage that between staggered corresponding laying and head both, formation is passed for one or more signal optical fibres 33, and described distortion tooth one 4-1 and distortion tooth two 4-2 correspondences are laid in the both sides of signal optical fibre 33, described Fiber bending sensing unit 6 is between housing 2 inwalls and slide plate 12, also comprise the optical cable 1 that an end is connected with signal optical fibre 33 in Fiber bending sensing unit 6, the other end of described optical cable 1 is connected with test cell 5, and test cell 5 and control module 7 join.
In the present embodiment, Fiber bending sensing unit 6 is shaped form housing 19, a plurality of distortion tooth one 4-1 and a plurality of distortion tooth two 4-2 correspondences are laid on the inwall of shaped form housing 19, signal optical fibre 33 are connected with optical cable 1 that pass housing 2, and the other end of optical cable 1 is connected with test cell 5.preferably, between slide plate 12 and housing 2 inwalls, the combination that also have butterfly spring 15 in parallel with shaped form housing 19, when the ice coating state on wire 28 begins to change, the weight of wire 28 can change, thereby make carriage release lever 10 move and make the change in location of slide plate 12, thereby distortion tooth one 4-1 that is laid in shaped form housing 19 and the distance of being out of shape tooth two 4-2 between cog are changed, distortion tooth one 4-1 changes apart from changing the bending curvature that causes being held on signal optical fibre 33 between the two with distortion tooth two 4-2 between cog, the bending curvature of signal optical fibre 33 changes changes the optical signal power that is transmitted in signal optical fibre 33, record this variable signal and pass to control module 7 by the rear test cell 5 of optical cable 1, calculate the case of bending of shaped form housing 19 through control module 7, thereby obtain the distance that carriage release lever 10 moves, and further can calculate the size of the F power value that acts on carriage release lever 10, can extrapolate the thickness of icing on wire 28 thus, then by wireless transmit/receive units 22 with this data back control center (not marking).
Preferably, also be mounted with in housing 2 inside the counterbalance spring 11 that is connected in series with shaped form test channel 6, the other end of counterbalance spring 11 and housing 2 inwalls join.Because the existence of counterbalance spring 11 can further increase the scope that carriage release lever 10 can be detected, namely can detect the larger displacement of driving stem 10.
Preferably, fluted 16 at described housing 2 inwalls, fin 13 is arranged on slide plate 12, described groove 16 and fin 13 are to be slidably matched.
Preferably, be connected in addition Blast Furnace Top Gas Recovery Turbine Unit (TRT) 24 with electric battery 22, Blast Furnace Top Gas Recovery Turbine Unit (TRT) 24 can be photovoltaic power generation apparatus or wind power generation plant, or this is both combinations, and Blast Furnace Top Gas Recovery Turbine Unit (TRT) 24 be that electric battery 22 is charged.
Preferably, be filled with material water-proof material around described signal optical fibre 33.As greasy for preventing water or the adhesive that blocks water, prevent hydrone or other impurity to the erosion of signal optical fibre 33, extend the serviceable life of signal optical fibre 33.
Preferably, described signal optical fibre 33 can adopt the special optical fibers such as carbon coated optical fiber, pi coated fiber, metallic coating signal optical fibre, thin footpath optical fiber.
As shown in Figure 6, the present embodiment is as different from Example 1: the curved bracket that comprises in described Fiber bending sensing unit 6 is spring 38, a plurality of distortion tooth one 4-1 and a plurality of distortion tooth two 4-2 correspondences are laid in spring 38 between the two adjacent rings spring wire, and distortion tooth one 4-1 and the two interlaced layings of 4-2 of distortion tooth.In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
As shown in Figure 7 and Figure 8, the present embodiment is as different from Example 1: the curved bracket that comprises in described Fiber bending sensing unit 6 is corrugated tube 40, in distortion tooth one 4-1 and distortion tooth two 4-2 correspondences are laid on the tube wall 42 of corrugated tube 40 on the two opposite side surfaces of recess, and distortion tooth one 4-1 and the two interlaced layings of 4-2 of distortion tooth.In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
Embodiment 4
As shown in Figure 9 and Figure 10, the present embodiment is as different from Example 1: the curved bracket in described Fiber bending sensing unit 6 is cylinder 36, be distributed with gap 37 on the sidewall of cylinder 36,37 both sides up and down are laid with distortion tooth one 4-1 and distortion tooth two 4-2 of interlaced correspondence in the gap.In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every according to the technology of the present invention essence to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solution of the present invention.
Claims (8)
1. device for monitoring icing of electric transmission line, comprise and be installed on the UB type link plate (25) that is connected with shaft tower (21) and the sensing unit (26) between insulator chain (27), and be installed on test cell (5) and control module (7) on shaft tower (21), and be the power supply that test cell (5) and control module (7) provide electric power, it is characterized in that: described sensing unit (26) comprises a housing (2) and a Fiber bending sensing unit (6), described housing is provided with an opening on (2), a carriage release lever (10) is slidably matched with opening, one end of described carriage release lever (10) is connected with the slide plate that is positioned at described housing (2) (12), the other end of described carriage release lever (10) is positioned at outside housing (2) and is connected with insulator chain (27), be provided with the draw ring that is connected with UB type link plate (25) on described housing, a plurality of distortion teeth one (4-1) and a plurality of distortion tooth two (4-2) that described Fiber bending sensing unit (6) comprises curved bracket and is laid in continuously relative both sides on described curved bracket, described a plurality of distortion teeth one (4-1) and a plurality of distortion tooth two (4-2) are the shaped form passage that between staggered corresponding laying and head both, formation is passed for one or more signal optical fibres (33), and described distortion tooth one (4-1) and distortion tooth two (4-2) correspondence are laid in the both sides of signal optical fibre (33), described Fiber bending sensing unit (6) is positioned between housing (2) inwall and slide plate (12), also comprise the optical cable (1) that the interior signal optical fibre (33) in an end and Fiber bending sensing unit (6) is connected, the other end of described optical cable (1) is connected with test cell (5), and test cell (5) joins with control module (7).
2. a kind of device for monitoring icing of electric transmission line according to claim 1 is characterized in that: between described slide plate (12) and housing (2) inwall, the auxiliary spring in parallel with curved bracket is installed.
3. a kind of device for monitoring icing of electric transmission line according to claim 2, it is characterized in that: described auxiliary spring is the combination of butterfly spring or butterfly spring.
4. a kind of device for monitoring icing of electric transmission line according to claim 1, is characterized in that: the counterbalance spring (11) that is connected in series with curved bracket is installed between described housing (2) inwall and slide plate (12).
5. a kind of device for monitoring icing of electric transmission line according to claim 1, it is characterized in that: described curved bracket is shaped form housing, spring, corrugated tube or cylinder.
6. a kind of device for monitoring icing of electric transmission line according to claim 1, it is characterized in that: described power supply is solar cell or wind-power electricity generation accumulating system.
7. a kind of device for monitoring icing of electric transmission line according to claim 1, it is characterized in that: described control module (7) connects wireless transmit/receive units (22).
8. a kind of device for monitoring icing of electric transmission line according to claim 1, it is characterized in that: described optical cable (1) is full non-metallic optical fiber cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110383014 CN103134435A (en) | 2011-11-27 | 2011-11-27 | Ice coating monitoring device for electric transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110383014 CN103134435A (en) | 2011-11-27 | 2011-11-27 | Ice coating monitoring device for electric transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103134435A true CN103134435A (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110383014 Pending CN103134435A (en) | 2011-11-27 | 2011-11-27 | Ice coating monitoring device for electric transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103134435A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315987A (en) * | 2014-11-05 | 2015-01-28 | 国家电网公司 | Power transmission line icing monitoring and measuring device |
| CN105005235A (en) * | 2015-06-10 | 2015-10-28 | 国网山东东平县供电公司 | On-line icing monitoring system for power transmission line |
| CN112909874A (en) * | 2021-01-18 | 2021-06-04 | 刘洪金 | Transmission line with icing detects structural design |
-
2011
- 2011-11-27 CN CN 201110383014 patent/CN103134435A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315987A (en) * | 2014-11-05 | 2015-01-28 | 国家电网公司 | Power transmission line icing monitoring and measuring device |
| CN105005235A (en) * | 2015-06-10 | 2015-10-28 | 国网山东东平县供电公司 | On-line icing monitoring system for power transmission line |
| CN112909874A (en) * | 2021-01-18 | 2021-06-04 | 刘洪金 | Transmission line with icing detects structural design |
| CN112909874B (en) * | 2021-01-18 | 2022-09-23 | 国网浙江省电力有限公司台州供电公司 | Transmission line with icing detects structural design |
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Application publication date: 20130605 |