CN105300334B - Transmission line icing thickness measurement apparatus - Google Patents
Transmission line icing thickness measurement apparatus Download PDFInfo
- Publication number
- CN105300334B CN105300334B CN201510779544.7A CN201510779544A CN105300334B CN 105300334 B CN105300334 B CN 105300334B CN 201510779544 A CN201510779544 A CN 201510779544A CN 105300334 B CN105300334 B CN 105300334B
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- China
- Prior art keywords
- transmission line
- power transmission
- support bar
- housing
- icing
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Abstract
A kind of transmission line icing thickness measurement apparatus, including hollow housing, the housing include bottom surface, the side wall on bottom surface, and the top cover on side wall；Include the weight meter on bottom surface inside hollow housing, the top of the weight meter is connected with conical hopper with the weight meter, and the outermost edges in the both sides of conical hopper and conical hopper are provided with the liftable support bar on bottom surface；The top cover of housing is made up of two symmetrical half top covers, opening position corresponding with support bar is provided with half of recess on each half top cover, the diameter of half of recess is slightly larger than the size of support bar, and two symmetrical half top covers, which can move forward, docks closing housing and the respective space for being moved rearwards opening and exposing enclosure interior；So, after two symmetrical half top cover docking, half of recess of two and half top covers docks to form a whole recess just by support bar；Enclosure interior also has heater, and water is converted into for the icing on power transmission line to be melted.
Description
Technical field
The present invention relates to a kind of monitoring of ice covering on transmission lines and thickness measure, 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 caused by endanger
Evil mainly include it is following some：1) shaft tower is damaged.Line ice coating is blocked up, and shaft tower machinery loading can be made more to carry and fracture；2) circuit
Tripping operation.For the circuit of wire vertical arrangement, (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, causes phase fault, line switching is tripped, power failure；3) insulate
Substring tilts, 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 ground fault occurs；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 to avoid the generation of the above situation, the judgement for icing mainly includes at 2 points, and any seeks to send out in time
The icing of existing power transmission line, the thickness of accurate measurement icing layer is sought to more in addition.Prior art common problem is exactly
Judge to be forbidden 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.The present invention is exactly what is put forward for the problem, and purpose, which is just to provide one kind, can accurately measure transmission line icing thickness
Device and method.
The content of the invention
According to one embodiment of the invention, there is provided a kind of transmission line icing thickness measurement apparatus, it is characterised in that：Including
Hollow housing, the housing include bottom surface, the upper side wall positioned at bottom surface, and the top cover on side wall；In hollow housing
Portion includes the weight meter on bottom surface, and the top of the weight meter is connected with conical hopper with the weight meter, in conical hopper
The outermost edges of both sides and conical hopper are provided with the liftable support bar on bottom surface, liftable support bar
For two, power transmission line is connected between two liftable support bars, and the length of power transmission line is slightly larger than two liftable support bars
Between spacing, after causing power transmission line to be installed between the support bar, the height among power transmission line supports not higher than both ends
The height on bar top；The top cover of housing is made up of two symmetrical half top covers, the position corresponding with support bar on each half top cover
The place of putting is provided with half of recess, and the diameter of half of recess is slightly larger than the size of support bar, and two symmetrical half top covers can move forward
Docking closing housing and the respective space for being moved rearwards opening and exposing enclosure interior；So, when two symmetrical half top covers pair
After connecing, half of recess of two and half top covers docks to form a whole recess just by support bar；The enclosure interior
Also there is heater, water is converted into for the icing on power transmission line to be melted.
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 in 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 among 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 taper leakage
Bucket, and the icing on support bar itself will not be entered in the conical hopper after melting.
According to another embodiment, there is provided a kind of method for carrying out transmission line icing thickness measurement, it is special
Sign is to comprise the following steps：
1) choose with the power transmission line of tested power transmission line phase same material and size, length be slightly larger than the support bar of enclosure interior two it
Between spacing；
2) support bar is risen, until the top of support bar reaches the outside of housing, and supporting bar top is apart from housing
The height of top cover is more than more than 10cm, and then the power transmission line of selection is arranged on two support bars, is closed again top cover；Or in advance
Power transmission line is arranged on two support bars, when needing measurement, top cover is opened, support bar is risen, so as to which power transmission line be risen from
Outside to housing and power transmission line is caused to be more than more than 10cm apart from the height of Casing top；
3) whole measurement is placed in the outdoor and contour position of tested power transmission line and is kept for the regular hour so that be selected
Power transmission line on produce with tested power transmission line identical icing structure；
4) decent strut, the power transmission line on support bar and support bar is closed in housing, then docks two and half again
Top cover, so as to closure shell；
5) it is water to use the heater in housing to carry out heating make it that the icing on selected power transmission line melts, power transmission line
Water after overlying ice-out is all received by the conical hopper under power transmission line, so as to be measured by the weight meter under conical hopper
The quality of water outlet, and the controller by the mass transport measured to outside；
6) thickness of ice covering on transmission lines is calculated according to following mathematical expression for controller：Wherein m
The quality of water after icing on measured power transmission line melts, ρ are the density of ice, and r is the radius of power transmission line, and l is selected
Power transmission line length.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the measurement apparatus of the present invention in the first state；
Accompanying drawing 2 is structural representation of the measurement apparatus of the present invention in second of state；
Accompanying drawing 3 is the structural representation of measurement apparatus Casing top of the present invention；
In above-mentioned accompanying drawing, 1 expression housing, 2 expression power transmission lines, 3 expression liftable support bars, 4 expression weight meters, 5
Conical hopper is represented, 6 represent heater.
Embodiment
Illustrate the transmission line icing thickness measurement apparatus of the present invention on the basis of with reference to accompanying drawing 1-3 first below, such as scheme
Shown in 1-2, transmission line icing thickness measurement apparatus of the invention includes hollow rectangle housing 1, and the housing includes bottom surface, position
Four side walls on bottom surface, and the top cover on four side walls.Include being located inside hollow rectangular housing 1
Weight meter 4 on bottom surface, the top of the weight meter 4 and the weight meter are connected with conical hopper 5, the both sides of conical hopper 5 with
The outermost edges of conical hopper are provided with liftable support bar 3, and liftable support bar 3 is two, and power transmission line connects
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, with
So that after power transmission line 2 is installed between two support bars, the height among power transmission line is not higher than the height of both ends support bar, preferably low
In the height 5mm of supporting bar top.No matter liftable support bar 3, which is in, rises or falls state, the height on the top of support bar 3
Degree is all higher than the height of conical hopper 5.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 conical hopper 5.As shown in figure 3, the top cover of housing 1 is made up of two symmetrical half top covers, pushed up each half
Cover opening position corresponding with support bar and be provided with semi-circular indentation, the diameter of semi-circular indentation is straight slightly larger than support bar
Footpath, two symmetrical half top covers can dock closing housing 1, can also each be moved rearwards, expose enclosure interior so as to open
Space, to facilitate two support bars that power transmission line is risen to the outside of housing 1.So, when two symmetrical half top covers dock it
Afterwards, 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
Heater 6, the position of heater 6 may be provided in side wall, and certainly, other suitable positions are also possible, as long as can be real
The function of now heating, quantity can be one or more.Meanwhile the shape of top cover upper notch can be other shapes, if with branch
The shape of strut is corresponding.
Below come describe in detail the present apparatus be used for measure transmission line icing thickness method.This method comprises the following steps：
1) power transmission line with tested power transmission line phase same material and size is chosen, length is equal to inside hollow rectangular housing 1
Spacing between two support bars；
2) top cover of housing 1 is opened, namely two and half top covers retreat two support bars exposed inside housing 1 respectively,
Then support bar is risen, until support bar is raised to the outside of housing, and supporting bar top is big apart from the height of the top cover of housing 1
In more than 10cm, then power transmission line is arranged on two support bars, is closed again top cover；Or power transmission line is arranged on two in advance
On strut, when needing measurement, directly support bar is risen, so as to be risen from power transmission line to outside housing and cause power transmission line distance
The height of the top cover of housing 1 is more than more than 10cm；
3) whole measurement is placed in the outdoor and contour position of tested power transmission line and is kept for the regular hour so that be selected
Power transmission line on produce with tested power transmission line identical icing structure；
4) decent strut, the power transmission line on support bar and support bar is closed in housing 1, then docks two and half again
Top cover, so as to closure shell 1；
5) it is water to use the heater in housing 1 to carry out heating make it that the icing on selected power transmission line melts, transmission of electricity
Water after line overlying ice-out is all received by the conical hopper under power transmission line, so as to by the weight meter meter under conical hopper
Measure the quality of water, and the controller by the mass transport measured to outside；
6) thickness of ice covering on transmission lines is calculated according to following mathematical expression：Measured by wherein m
Power transmission line on icing melt after water quality, ρ be ice density, r be power transmission line radius, l is selected transmission of electricity
The length of line.
Illustrated below for the measuring principle of the present invention, 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 to measure transmission line icing thickness, heated using the device of the present invention and turned the icing on power transmission line
Water is turned to, and is received by conical hopper.In heating process, because top cover is closed again, reduce the steaming of vapor
Lost caused by hair, simultaneously as the height among power transmission line is not higher than the height of support bar, so after ice covering on transmission lines melts
Water can fully enter in conical hopper, and icing with support bar sheet melt formed water big city along support bar to
Flow down, will not enter in conical hopper and measurement result is had an impact.Meanwhile in melting process, because top cover seals again
Close, can so prevent the steam of outside from entering enclosure interior to influence measurement result.Meanwhile highly will height after support bar rise
In top cover 10cm above is in order to reduce the influence that top cover freezes for power transmission line.
Because power transmission line is generally pylindrical, the calculating process of ice covering thickness is as follows：
Icing Mass Calculation mathematical expression is as follows on power transmission line：(πR2-πr2What) × l × ρ=m, wherein R were represented is power transmission line
Radius after icing, m be ice quality, and after ice-out water quality, can derive that power transmission line covers according to above-mentioned mathematical expression
Radius after ice isAgain due to R=d+r, wherein d is the thickness of icing, so
Thus, the thickness of power transmission line overlying ice sheet can finally be accurately measured.
Housing 1 therein can be other shapes, such as cylindrical shape, as long as there is inner space.Surveyed to reach
The purpose of accurate or measurable multiple time point ice covering thickness is measured, multiple measurement apparatus can be set simultaneously.
Claims (7)
- A kind of 1. transmission line icing thickness measurement apparatus, it is characterised in that：Including hollow housing, the housing includes bottom surface, is located at Side wall on bottom surface, and the top cover on side wall；Include the weight meter on bottom surface inside hollow housing, should The top of weight meter is connected with conical hopper with the weight meter, and the outermost edges in the both sides of conical hopper and conical hopper are tight Be sticked the liftable support bar being equipped with bottom surface, and liftable support bar is two, and power transmission line is connected to two and can risen Between the support bar of drop, the spacing between slightly larger than two liftable support bars of length of power transmission line, to cause power transmission line to install To after between the support bar, the height among power transmission line is not higher than the height of both ends supporting bar top；The top cover of housing is by two Individual symmetrical half top cover composition, opening position corresponding with support bar is provided with half of recess on each half top cover, and half recessed The diameter of mouth is slightly larger than the size of support bar, and two symmetrical half top covers, which can move forward, to be docked closing housing and be each moved rearwards Open the space for exposing enclosure interior；So, after two symmetrical half top cover docking, half of recess pair of two and half top covers Connect to form a whole recess just by support bar；The enclosure interior also has heater, for by power transmission line Icing, which melts, is converted into water.
- 2. measurement apparatus according to claim 1, it is characterised in that：The housing is shaped as cuboid or cylinder.
- 3. measurement apparatus according to claim 1, it is characterised in that：The heater is arranged in the side wall.
- 4. measurement apparatus according to claim 1, it is characterised in that：The height on top is higher than institute after the support bar rises State top cover at least 10cm.
- 5. measurement apparatus according to claim 1, it is characterised in that：It is defeated after the power transmission line is installed between support bar Height among electric wire is less than supporting bar top 5mm.
- 6. measurement apparatus according to claim 1, it is characterised in that：The water after icing thawing on selected power transmission line Conical hopper is fully entered, and the icing on support bar itself will not be entered in the conical hopper after melting.
- 7. a kind of method that any device carries out transmission line icing thickness measurement in 1-6 using claim, it is characterised in that bag Include following steps：1) power transmission line with tested power transmission line phase same material and size is chosen, length is slightly larger than between the support bar of enclosure interior two Spacing；2) support bar is risen, until the top of support bar reaches the outside of housing, and supporting bar top pushes up apart from housing (1) The height of lid is more than more than 10cm, and then the power transmission line of selection is arranged on two support bars, is closed again top cover；Or in advance will Power transmission line is arranged on two support bars, when needing measurement, opens top cover, support bar is risen, so as to which power transmission line emersion be arrived Housing is outer and causes power transmission line to be more than more than 10cm apart from the height of Casing top；3) whole measurement is placed in the outdoor and contour position of tested power transmission line and is kept for the regular hour so that selected is defeated Produced and tested power transmission line identical icing structure on electric wire；4) decent strut, the power transmission line on support bar and support bar is closed in housing, then docks two and half top covers again, So as to closure shell；5) it is water to use the heater in housing to carry out heating make it that the icing on selected power transmission line melts, power transmission line overlying Water after ice-out is all received by the conical hopper under power transmission line, so as to measure water outlet by the weight meter under conical hopper Quality, and by the mass transport measured to outside controller；6) thickness of ice covering on transmission lines is calculated according to following mathematical expression for controller：Wherein m is surveyed The quality of water after icing on the power transmission line of amount melts, ρ are the density of ice, and r is the radius of power transmission line, and l is selected defeated The length of electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779544.7A CN105300334B (en) | 2015-11-13 | 2015-11-13 | Transmission line icing thickness measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779544.7A CN105300334B (en) | 2015-11-13 | 2015-11-13 | Transmission line icing thickness measurement apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105300334A CN105300334A (en) | 2016-02-03 |
| CN105300334B true CN105300334B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510779544.7A Expired - Fee Related CN105300334B (en) | 2015-11-13 | 2015-11-13 | Transmission line icing thickness measurement apparatus |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716560A (en) * | 2016-02-26 | 2016-06-29 | 东南大学 | Device for detecting thickness of ice and snow on road |
| CN106017271A (en) * | 2016-07-20 | 2016-10-12 | 国网浙江省电力公司绍兴供电公司 | Auxiliary scale for observing icing of power transmission line |
| CN106289001A (en) * | 2016-07-20 | 2017-01-04 | 国网浙江省电力公司绍兴供电公司 | A kind of aided ruler device for powerline ice-covering observation |
| CN113008185A (en) * | 2021-01-25 | 2021-06-22 | 四川东钢新材料股份有限公司 | Cable coating thickness detection method and aluminum layer uniform thickness detection method of aluminum-clad steel wire |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4426885A (en) * | 1982-09-09 | 1984-01-24 | John Visco | Device for indicating the thickness of ice |
| JPH11295443A (en) * | 1998-04-10 | 1999-10-29 | Ship Res Inst Ministry Of Transport | Icing meter |
| CN101701842A (en) * | 2009-11-03 | 2010-05-05 | 杭州海康雷鸟信息技术有限公司 | Method and system for real-time monitoring of analog wire coated by ice of overhead power transmission line |
| CN201449247U (en) * | 2009-03-30 | 2010-05-05 | 长沙美能电力设备有限公司 | Thickness real-time monitor for ice coating on electric power pylon |
| CN102798367A (en) * | 2011-05-27 | 2012-11-28 | 上海涌能能源科技发展有限公司 | Method and device for detecting ice thickness on transmission line conductor |
| CN103335623A (en) * | 2013-06-13 | 2013-10-02 | 国家电网公司 | Method for observing thickness of ice coating on power transmission line |
| CN104182611A (en) * | 2014-07-21 | 2014-12-03 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Weighing method based tangent tower wire icing thickness calculation method and system |
| CN104636601A (en) * | 2015-01-05 | 2015-05-20 | 中国南方电网有限责任公司 | Electric transmission line icing thickness forecasting method for introducing dynamic de-icing process |
| CN205138461U (en) * | 2015-11-13 | 2016-04-06 | 华北电力大学（保定） | Power transmission line icing thickness measurement device |
-
2015
- 2015-11-13 CN CN201510779544.7A patent/CN105300334B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4426885A (en) * | 1982-09-09 | 1984-01-24 | John Visco | Device for indicating the thickness of ice |
| JPH11295443A (en) * | 1998-04-10 | 1999-10-29 | Ship Res Inst Ministry Of Transport | Icing meter |
| CN201449247U (en) * | 2009-03-30 | 2010-05-05 | 长沙美能电力设备有限公司 | Thickness real-time monitor for ice coating on electric power pylon |
| CN101701842A (en) * | 2009-11-03 | 2010-05-05 | 杭州海康雷鸟信息技术有限公司 | Method and system for real-time monitoring of analog wire coated by ice of overhead power transmission line |
| CN102798367A (en) * | 2011-05-27 | 2012-11-28 | 上海涌能能源科技发展有限公司 | Method and device for detecting ice thickness on transmission line conductor |
| CN103335623A (en) * | 2013-06-13 | 2013-10-02 | 国家电网公司 | Method for observing thickness of ice coating on power transmission line |
| CN104182611A (en) * | 2014-07-21 | 2014-12-03 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Weighing method based tangent tower wire icing thickness calculation method and system |
| CN104636601A (en) * | 2015-01-05 | 2015-05-20 | 中国南方电网有限责任公司 | Electric transmission line icing thickness forecasting method for introducing dynamic de-icing process |
| CN205138461U (en) * | 2015-11-13 | 2016-04-06 | 华北电力大学（保定） | Power transmission line icing thickness measurement device |
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Granted publication date: 20171114 Termination date: 20201113 |