CN105305353B - Ice covering on transmission lines monitoring device - Google Patents
Ice covering on transmission lines monitoring device Download PDFInfo
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- CN105305353B CN105305353B CN201510779461.8A CN201510779461A CN105305353B CN 105305353 B CN105305353 B CN 105305353B CN 201510779461 A CN201510779461 A CN 201510779461A CN 105305353 B CN105305353 B CN 105305353B
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- Prior art keywords
- transmission line
- power transmission
- support bar
- bullet
- housing
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Abstract
A kind of ice covering on transmission lines monitoring device, it is characterised in that：Ice covering on transmission lines monitoring device is by multiple monitoring devices components, each monitoring devices includes hollow housing, the housing includes bottom surface, side wall on bottom surface and the top cover on the wall of side, wherein bottom surface removes a part, also include liftable support bar on the bullet being located under bottom surface, bottom surface, and the power transmission line on support bar.
Description
Technical field
The present invention relates to a kind of monitoring of ice covering on transmission lines and measurement, belong to the transmission ＆ distribution electrical domain of electric power.
Background technology
Power transmission line in the winter time when icing phenomenon occurs, this be it is well known, freeze after produced by danger
Evil mainly include it is following some：1) shaft tower is damaged.Line ice coating is blocked up, and the mechanical loading of shaft tower can be made more to carry and fracture；2) circuit
Tripping operation.The circuit being arranged vertically for wire, (icing on wire is not necessarily simultaneously when the icing on layer conductor first comes off instantly
Come off), wire will rise rapidly or upper and lower jump, cause phase fault, line switching is tripped, power failure；3) insulate
Substring is tilted, wire is seriously sagging.When ice covering thickness in each span of circuit is uneven, conducting wire sag will great changes will take place,
Suspension insulator is caused to tilt, gold utensil bears larger horizontal direction active force.In the blocked up span of icing, it can cause to lead
Line is serious sagging and occurs ground fault；4) after insulator chain icing, insulating properties can be substantially reduced.When suspension insulator covers
When ice dissolves, it is possible to create icicle, make insulator chain short circuit, cause ground fault.So after power transmission line freezes, should
Icing is removed in time, and above-mentioned to avoid the occurrence of, the judgement for icing mainly includes at 2 points, and any seeks to hair in time
The icing of existing power transmission line, seeks to the thickness of accurate measurement icing layer more in addition.Prior art common problem is exactly
Judge inaccurate for ice covering thickness, error is also very big sometimes, often causes judgement to be made a fault, so as to cause in decision-making
Error, what the present invention exactly put forward for the problem, purpose, which is just to provide one kind, can accurately monitor transmission line icing thickness
Device and method
The content of the invention
According to one embodiment of the invention, a kind of ice covering on transmission lines monitoring device, it is characterised in that：Ice covering on transmission lines is monitored
Device is by multiple monitoring devices components, and each monitoring devices includes hollow housing, and the housing includes bottom surface, the side on bottom surface
Wall and the top cover on the wall of side, wherein bottom surface remove a part, the lower surface in the bottom surface, the big opening end of bullet
Just it is connected to the edge that bottom surface removes part；Upper surface in the bottom surface, is close to described in the both sides for removing part edge
Edge is provided with liftable support bar, and liftable support bar is two, and power transmission line is connected to two liftable support bars
Between, the spacing between slightly larger than two liftable support bars of length of power transmission line, to cause power transmission line to be installed to two support bars
Between after, the height in the middle of power transmission line is not higher than the height of two ends support bar；The top cover of housing is by two symmetrical half top cover groups
Into semi-circular indentation being provided with position corresponding with support bar on each half top cover, the diameter of semi-circular indentation is slightly larger
In the diameter of support bar, two symmetrical half top covers can dock closing housing and open the space for exposing enclosure interior；In shell
The inside of body also has heater, and bullet is non-conductive in itself, with multiple non-interconnected relative to cone in bullet
The raised conducting ring of the inner surface of body, is additionally provided with bullet for strengthening the solvent of water electric conductivity, and conducting ring, which has, to be lacked
Mouthful, it is consequently formed in the conducting ring of a non-interconnected, bullet each non-interconnected conducting ring and is connected with controller, works as power transmission line
On icing melt be water after i.e. enter bullet in, into bullet after it is instant solution bullet in solvent so that melt
Frozen water it is conductive, when ponding height more than non-interconnected conducting ring after, i.e., produced in controller one with
The corresponding pre-warning signal of the non-interconnected conducting ring depth of water, so, the different degrees of icing of power transmission line can produce different thawings
Water, so as to flood the non-interconnected conducting ring of different height in bullet, so as to produce different pre-warning signals, by
Melt the icing on power transmission line at the time of different, can determine whether what kind of situation the ice covering thickness of power transmission line has reached, namely pass through
Multiple monitoring devices are set, and multiple monitoring devices are heated progressively, you can realize the complete of transmission line icing thickness
Journey is monitored.
According to one embodiment of the invention, the housing is shaped as cuboid or cylinder.
According to one embodiment of the invention, the heater is arranged on the side wall.
According to one embodiment of the invention, the height on top is higher than the top cover at least 10cm after the support bar rises.
According to one embodiment of the invention, after the power transmission line is installed between support bar, the height in the middle of power transmission line is low
In supporting bar top 5mm.
According to one embodiment of the invention, the water after the icing on selected power transmission line melts fully enters bullet,
And icing of the support bar with will not be entered in the conical hopper after melting.
According to one embodiment of the invention, there is provided a kind of method for carrying out ice covering on transmission lines monitoring, it is characterised in that bag
Include following steps：
1) monitoring device is constituted by multiple monitoring devices, chooses the power transmission line with tested power transmission line phase same material and size,
Length is slightly larger than the spacing between the support bar of enclosure interior two；
2) top cover of the housing of multiple monitoring devices is opened, namely two and half top covers retreat expose enclosure interior respectively
Two support bars, then rise support bar, until support bar is raised to the outside of housing, and supporting bar top is apart from housing top
The height of lid is more than more than 10cm, and then power transmission line is arranged on two support bars, top cover is closed again；Or in advance by power transmission line
It is arranged on two support bars, when needing measurement, directly rises support bar, so as to rises to outside housing and cause power transmission line
Power transmission line is more than more than 10cm apart from the height of Casing top；
3) the whole measurement being made up of multiple monitoring devices is placed in outdoor and the contour position of tested power transmission line and holding
Regular hour so that produced and tested power transmission line identical icing structure on selected power transmission line；
4) according to it is predetermined at the time of so that the support bar of monitoring devices declines, by support bar and support bar
Power transmission line is closed in housing, and two and half top covers are then docked again, so that closure shell；
5) using the heater in housing to carry out heating causes the icing on selected power transmission line melts to be water, power transmission line
Bullet of the water under power transmission line after overlying ice-out is all received；
6) check as the pre-warning signal produced by controller, then by predetermined time, repeat step 4) and 5), namely
The melting process of ice covering on transmission lines in second monitoring devices is completed, the pre-warning signal that controller is produced then is checked again, as
Complete the melting process of ice covering on transmission lines in all monitoring devices.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the monitoring devices of the present invention in the first state；
Accompanying drawing 2 is structural representation of the monitoring devices of the present invention in second of state；
Accompanying drawing 3 is the structural representation of monitoring devices Casing top of the present invention；
Accompanying drawing 4 is the schematic diagram for being grouped together into monitoring device in the present invention by 4 monitoring devices；
Accompanying drawing 5 is the top view of non-interconnected conducting ring in bullet in monitoring devices of the present invention.
In above-mentioned accompanying drawing, 1 represents housing, and 2 represent power transmission line, and 3 represent liftable support bar, and 4 represent bullet, 5
The conducting ring of non-interconnected in bullet is represented, 6 represent heater, and 4.1-4.4 represents monitoring devices.
Embodiment
Illustrate the ice covering on transmission lines monitoring device of the present invention on the basis of with reference to accompanying drawing 1-5 first below, such as Fig. 4 institutes
Show, ice covering on transmission lines monitoring device of the invention is by 4 monitoring devices components, and 4 monitoring devices are exemplary, other numbers
The monitoring devices of amount is all possible, in order to briefly describe, and is illustrated below on the basis of with reference to accompanying drawing 4 exemplified by 4.
Wherein shown in Fig. 1-2 is one in 4 monitoring devices.
As shown in Figure 1-2, monitoring devices of the invention includes hollow rectangle housing 1, and the housing 1 includes bottom surface, position
In four side walls on bottom surface and the top cover on four side walls.Wherein bottom surface removes a part, in the bottom surface
Lower surface, the big opening end of bullet 4 is just connected to the edge that bottom surface removes part, and the upper surface in the bottom surface is being removed
The both sides of part edge are close to the edge and are provided with liftable support bar 3, and liftable support bar 3 is two, power transmission line
It is connected between two liftable support bars 3, the spacing between slightly larger than two liftable support bars of length of power transmission line 2,
After make it that power transmission line 2 is installed between two support bars, the height in the middle of power transmission line is not higher than the height of two ends support bar, preferably
Less than the height 5mm of supporting bar top.Wherein Fig. 1 is that support bar 3 is under the first state risen with power transmission line 2, and Fig. 2 is branch
Strut and power transmission line are in the state of falling, under two states, the top of support bar 3 and the transmission of electricity in supporting bar top
Line 2 is respectively positioned on bullet 4.As shown in figure 3, the top cover of housing 1 is made up of two symmetrical half top covers, in each half top cover
Semi-circular indentation is provided with upper position corresponding with support bar, the diameter of semi-circular indentation is slightly larger than the diameter of support bar,
Two symmetrical half top covers can dock closing housing 1, can also each be moved rearwards by, so as to open the sky for exposing enclosure interior
Between, to facilitate two support bars that power transmission line is risen to the outside of housing 1.So, after two symmetrical half top cover docking,
The semi-circular indentation of two and half top covers docks to form a circle just by support bar.Also have in the inside of housing 1 and add
Hot device 6, the position of heater 6 may be provided on the wall of side, certainly, and other suitable positions are also possible, as long as can realize
The function of heating, quantity can be with one or more.Meanwhile, the shape of top cover upper notch can be other shapes, as long as with support
The shape of bar is corresponding.Bullet is non-conductive in itself, with multiple non-interconnected relative to taper in bullet
The raised conducting ring of the inner surface of body, multiple conducting rings uniform or non-uniform Distribution from the bottom up, raised conducting ring is higher than bullet
More than inner surface 5mm.And it is additionally provided with bullet for strengthening the salt equal solvent of water electric conductivity.Wherein bullet
Shape can change, and such as can be cylindrical shape, shape be without limited.Shape on conducting ring can refer to Fig. 5 institutes
Show, Fig. 5 is the top view of conducting ring in bullet.The wherein quantitative example of conducting ring shows 4, certainly, quantity
Can be other, such as 3,5, preferably more than 2, the wherein quantity of conducting ring should be consistent with the quantity of monitoring devices.
Conducting ring can be becket, and such as copper ring or aluminium ring, a conducting ring not complete becket with breach, for example, are gone
Except a quarter of whole becket, the conducting ring of a non-interconnected is consequently formed.For example constitute defeated by four monitoring devices
Ice thickness monitor device, then the quantity of conducting ring should also be as 4 in bullet.Each non-interconnected is led in bullet
Electric ring is connected with controller, when on power transmission line icing melt be water after i.e. enter bullet in, into bullet after it is instant
The salt in bullet is solved so that the frozen water melted is conductive, when height the leading more than first non-interconnected of ponding
After electric ring, i.e., a pre-warning signal corresponding with the first non-interconnected conducting ring depth of water, so, power transmission line are produced in controller
Different degrees of icing can produce different thawing waters, so as to flood the non-interconnected conduction of different height in bullet
Ring, so as to produce different pre-warning signals, by melting the icing on power transmission line different at the time of, can determine whether covering for power transmission line
What kind of situation ice thickness has reached, namely by setting multiple monitoring devices, and being carried out to multiple monitoring devices progressively
Heating, you can realize the monitored over time of transmission line icing thickness.
Below come describe in detail the present apparatus be used for measure transmission line icing thickness method.This method comprises the following steps：
1) monitoring device is constituted by multiple monitoring devices, chooses the power transmission line with tested power transmission line phase same material and size,
Length is slightly larger than the spacing between two support bars of the inside of housing 1；
2) top cover of the housing 1 of multiple monitoring devices is opened, namely two and half top covers retreat expose inside housing 1 respectively
Two support bars, then support bar is risen, until support bar is raised to the outside of housing, and supporting bar top is apart from housing
The height of 1 top cover is more than more than 10cm, and then power transmission line is arranged on two support bars, top cover is closed again；Or in advance will be defeated
Electric wire is arranged on two support bars, when needing measurement, is directly risen support bar, so that power transmission line is risen to outside housing simultaneously
So that power transmission line is more than more than 10cm apart from the height of the top cover of housing 1；
3) the whole measurement being made up of multiple monitoring devices is placed in outdoor and the contour position of tested power transmission line and holding
Regular hour so that produced and tested power transmission line identical icing structure on selected power transmission line；
4) according to it is predetermined at the time of so that the support bar of monitoring devices declines, by support bar and support bar
Power transmission line is closed in housing 1, and two and half top covers are then docked again, so that closure shell 1；
5) using the heater in housing 1 to carry out heating causes the icing on selected power transmission line melts to be water, transmission of electricity
Bullet of the water under power transmission line after line overlying ice-out is all received；
6) check as the pre-warning signal produced by controller, then by predetermined time, repeat step 4) and 5), namely
The melting process of ice covering on transmission lines in second monitoring devices is completed, the pre-warning signal that controller is produced then is checked again, as
Complete the melting process of ice covering on transmission lines in all monitoring devices.
Measuring principle below for the present invention is illustrated, when predicting power transmission line and may freeze, in advance by institute
The power transmission line of selection is placed in and is tested under power transmission line identical freezing environment, so as to produce with being truly tested power transmission line identical knot
Ice thickness, when needing measurement transmission line icing thickness, is heated using the device of the present invention and is turned the icing on power transmission line
Water is turned to, and is received by bullet.In heating process, because top cover is closed again, the evaporation of vapor is reduced
Caused loss, simultaneously as the height in the middle of power transmission line is not higher than the height of support bar, so after ice covering on transmission lines melts
Water can be fully entered in bullet, and the formed water big city of the icing thawing with support bar sheet is downward along support bar
Stream, will not enter in bullet and produce influence to measurement result.Meanwhile, in melting process, because top cover is closed again, this
Sample can prevent the steam of outside from entering enclosure interior to influence measurement result.Meanwhile, support bar is highly higher than top after rising
10cm is covered above is in order to reduce the influence that top cover freezes for power transmission line.Because non-interconnected conducting ring is higher than table in bullet
Face, so pre-warning signal only can be just produced in the case where ponding floods, and one ice covering thickness of each pre-warning signal correspondence,
These pre-warning signals are available for staff to be referred to.The addition of wherein salt causes ponding conductive, so as to
Ponding produces pre-warning signal when flooding non-interconnected conducting ring.Likewise it is preferred that the width of non-interconnected conducting ring breach is not less than whole
The a quarter of conducting ring girth, may cause non-interconnected conducting ring is produced to be electrically connected if breach is too small due to the process of current
Lead to produce error signal.
Housing 1 therein can be other shapes, such as cylindrical shape.
Claims (5)
1. a kind of ice covering on transmission lines monitoring device, it is characterised in that：Ice covering on transmission lines monitoring device is made up of multiple monitoring devices,
Each monitoring devices includes hollow housing, and the housing includes bottom surface, the side wall on bottom surface and the top on the wall of side
Lid, wherein bottom surface remove a part, and the lower surface in the bottom surface, the big opening end of bullet is just connected to bottom surface and removes part
Edge；Upper surface in the bottom surface, is close to the edge in the both sides for removing part edge and is provided with liftable support
Bar, liftable support bar is two, and power transmission line is connected between two liftable support bars, and the length of power transmission line is slightly larger than
Spacing between two liftable support bars, after make it that power transmission line is installed between two support bars, the height in the middle of power transmission line
The not higher than height of two ends support bar；The top cover of housing is made up of two symmetrical half top covers, with support on each half top cover
Be provided with semi-circular indentation at the corresponding position of bar, the diameter of semi-circular indentation is slightly larger than the diameter of support bar, when two it is right
After the half top cover docking claimed, the semi-circular indentation of two and half top covers docks to form a circle just by support bar, and two
Individual symmetrical half top cover can dock closing housing and open the space for exposing enclosure interior；Also there is heating in the inside of housing
Device, bullet is non-conductive in itself, the inner surface projection relative to bullet with multiple non-interconnected in bullet
Conducting ring, is additionally provided with for strengthening the solvent of water electric conductivity, conducting ring has breach in bullet, be consequently formed one it is non-
Each non-interconnected conducting ring is connected with controller in the conducting ring of connection, bullet, is water when the icing on power transmission line melts
Afterwards i.e. enter bullet in, into bullet after it is instant solution bullet in solvent so that melt frozen water have conduction
Property, when ponding height more than non-interconnected conducting ring after, i.e., one and the non-interconnected conducting ring are produced in controller
The corresponding pre-warning signal of the depth of water, so, the different degrees of icing of power transmission line can produce different thawing waters, so as to flood
Do not have the non-interconnected conducting ring of different height in bullet, so as to produce different pre-warning signals, by melting different at the time of
Icing on power transmission line, can determine whether what kind of situation the ice covering thickness of power transmission line has reached, namely by setting multiple monitors
Part, and multiple monitoring devices are heated progressively, you can realize the monitored over time of transmission line icing thickness, the housing
Be shaped as cuboid or cylinder, the heater is arranged on the side wall.
2. ice covering on transmission lines monitoring device according to claim 1, it is characterised in that：Top after the support bar rises
Highly it is higher than the top cover at least 10cm.
3. ice covering on transmission lines monitoring device according to claim 1, it is characterised in that：The power transmission line is installed to support bar
Between after, height in the middle of power transmission line is less than supporting bar top 5mm.
4. ice covering on transmission lines monitoring device according to claim 1, it is characterised in that：Icing on selected power transmission line
Water after thawing fully enters bullet, and icing of the support bar with will not be entered in the bullet after melting.
5. any ice covering on transmission lines monitoring device carries out the side of transmission line icing thickness measurement in a kind of 1-4 using claim
Method, it is characterised in that comprise the following steps：
1) monitoring device is constituted by multiple monitoring devices, chooses the power transmission line with tested power transmission line phase same material and size, length
Slightly larger than the spacing between the support bar of enclosure interior two；
2) top cover of the housing of multiple monitoring devices is opened, namely two and half top covers retreat expose two of enclosure interior respectively
Support bar, then rises support bar, until the outside to housing of support bar, and supporting bar top is apart from Casing top
Highly it is more than more than 10cm, then power transmission line is arranged on two support bars, top cover is closed again；Or power transmission line is set in advance
On two support bars, when needing measurement, directly support bar is risen, so that power transmission line is risen to outside housing and causes transmission of electricity
The height of linear distance Casing top is more than more than 10cm；
3) the whole measurement being made up of multiple monitoring devices is placed in the outdoor and contour position of tested power transmission line and keeps certain
Time so that on selected power transmission line produce with tested power transmission line identical icing structure；
4) according to it is predetermined at the time of so that the support bar of monitoring devices declines, by the transmission of electricity on support bar and support bar
Line is closed in housing, and two and half top covers are then docked again, so that closure shell；
5) using the heater in housing to carry out heating causes the icing on selected power transmission line melts to be water, power transmission line overlying
Bullet of the water under power transmission line after ice-out is all received；
6) check as the pre-warning signal produced by controller, then by predetermined time, repeat step 4) and 5), namely complete
The melting process of ice covering on transmission lines in second monitoring devices, then checks the pre-warning signal that controller is produced, as completion again
The melting process of ice covering on transmission lines in all monitoring devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779461.8A CN105305353B (en) | 2015-11-13 | 2015-11-13 | Ice covering on transmission lines monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779461.8A CN105305353B (en) | 2015-11-13 | 2015-11-13 | Ice covering on transmission lines monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105305353A CN105305353A (en) | 2016-02-03 |
| CN105305353B true CN105305353B (en) | 2017-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510779461.8A Expired - Fee Related CN105305353B (en) | 2015-11-13 | 2015-11-13 | Ice covering on transmission lines monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105305353B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616978B (en) * | 2018-11-08 | 2020-12-04 | 金鹏飞 | High-voltage line ice and snow prevention tower device capable of melting in sections |
| CN111472945A (en) * | 2020-03-23 | 2020-07-31 | 国家电投集团广西兴安风电有限公司 | Wind-powered electricity generation field icing monitoring and early warning device based on electromagnetic resonance principle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989546A (en) * | 1995-09-28 | 1997-04-04 | Mitsubishi Materials Corp | Ice thickness measuring device |
| CN104578061B (en) * | 2015-01-26 | 2017-02-22 | 国家电网公司 | Method for pre-estimating overhead power transmission line wire designed ice thickness |
| CN104713488A (en) * | 2015-03-26 | 2015-06-17 | 天津大学 | Optical ice thickness observation barrel |
| CN205195209U (en) * | 2015-11-13 | 2016-04-27 | 华北电力大学（保定） | Power transmission line icing monitoring device |
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2015
- 2015-11-13 CN CN201510779461.8A patent/CN105305353B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN105305353A (en) | 2016-02-03 |
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Granted publication date: 20171003 Termination date: 20201113 |