CN106654992B - A kind of power transmission line laser deicing method - Google Patents
A kind of power transmission line laser deicing method Download PDFInfo
- Publication number
- CN106654992B CN106654992B CN201611049838.5A CN201611049838A CN106654992B CN 106654992 B CN106654992 B CN 106654992B CN 201611049838 A CN201611049838 A CN 201611049838A CN 106654992 B CN106654992 B CN 106654992B
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- Prior art keywords
- transmission line
- power transmission
- organic polymer
- laser
- polymer coating
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 38
- 238000000576 coating method Methods 0.000 claims abstract description 38
- 229920000620 organic polymer Polymers 0.000 claims abstract description 34
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 238000005422 blasting Methods 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 230000035939 shock Effects 0.000 claims abstract description 6
- 238000002679 ablation Methods 0.000 claims abstract description 5
- 239000012634 fragment Substances 0.000 claims abstract description 4
- 238000013467 fragmentation Methods 0.000 claims abstract description 4
- 238000006062 fragmentation reaction Methods 0.000 claims abstract description 4
- 230000008016 vaporization Effects 0.000 claims abstract description 4
- 238000009834 vaporization Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008602 contraction Effects 0.000 abstract description 2
- 238000002844 melting Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000008018 melting Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
Abstract
The present invention provides a kind of power transmission line laser deicing method, include the following steps：(1) one layer of organic polymer coating is brushed in advance on the naked power transmission line surface of naked skin；(2) when there is ice covering on power transmission line, export pulse laser beam, make laser beam penetrate transparency ice layer to focus on the organic polymer coating on power transmission line surface, the vapour pressure that organic polymer coating ablation vaporization produces forms moment Blasting shock wave, ice sheet is burst, falls down the ice sheet fragment of fragmentation；(3) focal position of the laser beam in organic polymer coating is moved, i.e., so that laser beam makees scanning motion along power transmission line, you can realize the deicing of long-distance transmission line.Power transmission line laser deicing method of the present invention by the absorption laser of organic polymer coating, be rapidly heated, ablation vapography, it is ingenious to produce Blasting shock wave using the effect of contraction for wrapping up ice sheet, and broken ice sheet, realize effective deicing of power transmission line.
Description
Technical field
The invention belongs to laser application field, and in particular to a kind of power transmission line laser deicing method.
Background technology
According to incompletely statistics, since last century mid-term, China's transmission line of electricity by different degrees of icing disaster up to
Thousands of times.The accidents such as powerline ice-covering will cause electric wire wave, break, shaft tower collapses, insulator arc-over, to the normal of power grid
Operating and people's lives bring very big inconvenience.Cause the generations of various accidents to reduce icing, many R＆D institutions and high
Universities and colleges expand the research of removing ice of power transmission line technology, and have obtained certain effect.De-icing method is various both at home and abroad at present, deicing
Mechanism can be summarized as thermal ice-melting method, mechanical deicing, natural deicing and robot deicing method etc..
Thermal ice-melting method refers to the method for melting icing using additional heating source or conducting wire self-heating.Heat common at present
Power ice-melting method has three kinds of excess current de-icing method, short circuit current flow ice-melt, DC ice melting methods.Mechanical deicing's method is exactly outer using machinery
The method that power forces the coating ice falling on conducting wire.Natural deicing method refers to the side for being not required to outside energy and deicing being realized by natural force
Method.Such as on transmission line of electricity installation resistance snow ring, counterweight device, when accumulated snow or icing reache a certain level, by wind-force,
The effects such as gravity voluntarily come off, and this de-icing method is simple and practicable, but have stronger contingency, it is impossible to realize reliable deicing.
In addition to the method described above, the methods of artificial deicing, laser deicing also in application or research.Artificial deicing method master
If by beaing electric wire along surfaceman's pull rod or bamboo rod etc., make coating ice falling, this method is still that China is mainly adopted
One of de-icing method.But the method inefficiency, environment are very big to operation limitation, and the life security of power worker is subject to
Greatly threaten.
Laser deicing method is the method that deicing is carried out to transmission line of electricity using the laser beam of high power, high-energy.Current
Laser deicing method is mainly exposed on icing using laser so that icing Surface absorption laser energy causes temperature to raise, ice
Phase changes, and is melted into liquid or direct gasification, reaches the effect of laser ice-melt.This method has remote, non-connect
Tactile, external heat source, need not increase equipment inside power grid, not power off the advantages that deicing.But this method requires laser energy
It is high that (ice is intimate " transparent " to the laser beam of common wavelength, i.e., absorptivity is very low, such as the attenuation rate to 1064nm wavelength lasers
The attenuation rate of only 0.04~0.05/m, 532nm wavelength laser is only 0.03~0.04/m), ice-melt speed is slow, specific energy consumption
Greatly, when ice layer thickness changes, laser parameter will also occur to change accordingly, poor compatibility, and laser beam penetrates ice sheet
Act on power transmission line, easily cause power transmission line damage.
The content of the invention
The present invention is in view of the above shortcomings of the prior art, there is provided a kind of not damaged, the transmission of electricity line laser of highly compatible remove
Ice method.
The present invention is achieved through the following technical solutions：
A kind of power transmission line laser deicing method, includes the following steps：
(1) one layer of organic polymer coating is brushed in advance on the naked power transmission line surface of naked skin, it is desirable to the organic polymer
Thing coating is more than 70% to the laser beam absorption rate used in subsequent step, coating layer thickness 0.01mm~1mm；
(2) when there is ice covering on power transmission line, pulse laser beam is exported, laser beam is penetrated transparency ice layer and focuses on transmission of electricity
Very fast heating occurs on the organic polymer coating on line surface, after organic polymer coating absorption laser, and (heating rate is up to 106
~107DEG C/s), control laser power density organic polymer coating to produce violent ablation by adjusting laser technical parameters
Vaporization phenomenon, the vapour pressure of generation form moment Blasting shock wave, crack laser focusing radiation active region and neighbouring heat affected area
Ice sheet, simultaneously because the conduction of heat of organic polymer coating and metal power transmission line, laser focusing radiation will be caused to act on
Interface that the ice sheet of area and neighbouring heat affected area is contacted with organic polymer coating occurs thin layer and melts, that is, release ice sheet with it is organic
The solid-state adhesive force of polymer coating；
(3) focal position of the laser beam in organic polymer coating is moved, i.e., so that laser beam is swept along power transmission line as track
Movement is retouched, (spacing distance is less than or equal to laser focusing radiation active region and neighbouring heat affecting to scanning track spacing certain distance
Sector width), realize that the ice sheet fragment of the region fragmentation on power transmission line Jing Guo laser scanning is fallen down under the effect of gravity, along power transmission line
Make the deicing that long-distance transmission line can be achieved in this scanning motion.
The present invention has the advantages that：
1st, absorption laser, quick liter of the power transmission line laser deicing method of the present invention by organic polymer coating
Temperature, ablation vapography, it is ingenious to produce Blasting shock wave using the effect of contraction for wrapping up ice sheet, and broken ice sheet, utilization are organic
Polymer coating conduction effect releases the solid-state adhesive force of ice sheet and organic polymer coating, realizes effectively removing for power transmission line
Ice.
2nd, power transmission line laser deicing method of the invention utilizes metal and the different melting points of coating material, ice detachment laser
On the metal layer of power transmission line in itself without influence, lossless deicing is realized.
3rd, power transmission line laser deicing method of the present invention, laser beam realizes deicing through " transparent " ice sheet, with covering
Ice layer thickness is unrelated, therefore more thick ice can remove.
4th, the high-absorbility characteristic present invention utilizes organic polymer coating to laser beam so that the laser needed for deicing
Energy is significantly smaller than the laser deicing method that traditional ice sheet directly absorbs, and laser apparatus parameter request is low, and cost is low, and not
Power transmission line can be caused to damage.
5th, the present invention carries out deicing using Laser Scanning, compared to tradition machinery deicing, artificial de-icing method, realizes
Remote operation, contactless deicing, it is quick, easy to operate and safer.
Embodiment
With reference to embodiment, the present invention will be further described in detail.
The present invention provides a kind of power transmission line laser deicing method, specifically comprise the following steps：
(1) one layer of organic polymer coating is brushed in advance on the naked power transmission line surface of naked skin, it is desirable to the organic polymer
Thing coating is more than 70% to the laser beam absorption rate used in subsequent step；The organic polymer coating can be in power transmission line without ice
When brush or spraying, coating layer thickness 0.01mm~1mm；
(2) when there is ice covering on power transmission line, export pulse laser beam, make laser beam penetrate " transparent " ice sheet focus on it is defeated
Very fast heating occurs on the organic polymer coating of wire surface, after organic polymer coating absorption laser, and (heating rate is reachable
106~107DEG C/s), control laser power density organic polymer coating to produce acutely burning by adjusting laser technical parameters
Vaporization phenomenon is lost, the vapour pressure of generation forms moment Blasting shock wave, cracks laser focusing radiation active region and neighbouring heat affecting
The ice sheet in area, simultaneously because the conduction of heat of organic polymer coating and metal power transmission line, will cause laser focusing radiation to make
The interface contacted with the ice sheet of area and neighbouring heat affected area with organic polymer coating occurs thin layer and melts, that is, releases ice sheet with having
The solid-state adhesive force of machine polymer coating；
The wavelength requirement ice sheet of the laser beam is less than 0.1/m to its attenuation rate, i.e., the wavelength laser beam may be regarded as " thoroughly
It is bright "；
(3) focal position of the laser beam in organic polymer coating is moved, i.e., so that laser beam is swept along power transmission line as track
Movement is retouched, (spacing distance is less than or equal to laser focusing radiation active region and neighbouring heat affecting to scanning track spacing certain distance
Sector width), realize that the ice sheet fragment of the region fragmentation on power transmission line Jing Guo laser scanning is fallen down under the effect of gravity, along power transmission line
Make the deicing that long-distance transmission line can be achieved in this scanning motion.
The present invention can change into that various ways are apparent to one skilled in the art, and such change is not considered as
Depart from the scope of the present invention.All such technical staff to the field obviously change, and are included within this right
Within the scope of it is required that.
Claims (1)
- A kind of 1. power transmission line laser deicing method, it is characterised in that include the following steps：(1) one layer of organic polymer coating is brushed in advance on the naked power transmission line surface of naked skin, it is desirable to which the organic polymer applies Layer is more than 70% to the laser beam absorption rate used in subsequent step, coating layer thickness 0.01mm~1mm；(2) when there is ice covering on power transmission line, pulse laser beam is exported, laser beam is penetrated transparency ice layer and focuses on power transmission line table On the organic polymer coating in face, after absorbing laser very fast heating occurs for organic polymer coating, is joined by adjusting laser technology Number control laser power density causes organic polymer coating to produce violent ablation vaporization phenomenon, and the vapour pressure of generation forms moment Blasting shock wave, cracks the ice sheet of laser focusing radiation active region and neighbouring heat affected area, simultaneously because organic polymer coating And the conduction of heat of metal power transmission line, the ice sheet of laser focusing radiation active region and neighbouring heat affected area will be caused to gather with organic The interface of compound coating layer touch occurs thin layer and melts, that is, releases the solid-state adhesive force of ice sheet and organic polymer coating；(3) focal position of the laser beam in organic polymer coating is moved, i.e., so that laser beam makees track scanning fortune along power transmission line It is dynamic, scan track spacing certain distance so that the ice sheet fragment of the region fragmentation on power transmission line Jing Guo laser scanning is made in gravity Fallen down under, make the deicing of the i.e. achievable long-distance transmission line of this scanning motion along power transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049838.5A CN106654992B (en) | 2016-11-24 | 2016-11-24 | A kind of power transmission line laser deicing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049838.5A CN106654992B (en) | 2016-11-24 | 2016-11-24 | A kind of power transmission line laser deicing method |
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| Publication Number | Publication Date |
|---|---|
| CN106654992A CN106654992A (en) | 2017-05-10 |
| CN106654992B true CN106654992B (en) | 2018-04-24 |
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| CN201611049838.5A Expired - Fee Related CN106654992B (en) | 2016-11-24 | 2016-11-24 | A kind of power transmission line laser deicing method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107658779A (en) * | 2017-10-11 | 2018-02-02 | 清华大学 | A kind of method based on pulse laser processing overhead line foreign matter |
| CN108565810A (en) * | 2018-04-15 | 2018-09-21 | 广东电网有限责任公司 | A kind of operational method using carbon dioxide laser ice-melt |
| CN112382735B (en) * | 2020-11-17 | 2021-11-12 | 东莞赣锋电子有限公司 | Method for preparing lithium ion battery pole piece by laser cleaning |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332684A (en) * | 1998-12-01 | 2002-01-23 | 达特茅斯学院理事会 | Methods and structures for removing ice from surfaces |
| CN101325321A (en) * | 2008-04-09 | 2008-12-17 | 中国工程物理研究院应用电子学研究所 | Method for deicing aerial high voltage power line using laser |
| CN101562320A (en) * | 2009-05-08 | 2009-10-21 | 国网电力科学研究院 | Method and system for laser deicing for power transmission and transformation equipment |
| DE102010004310A1 (en) * | 2010-01-11 | 2011-07-14 | Rolf Dr. Ing. 47443 Engels | Assembly for eliminating ice formation on contact wires of e.g. train, has laser formed in defined working area, where energy acts upon freezing of wire in stand state and during drive state such that icing crystal structure is burst open |
| CN102489877A (en) * | 2011-12-23 | 2012-06-13 | 河南科技大学 | Laser shock method and laser shock device |
| CN104410029A (en) * | 2014-12-27 | 2015-03-11 | 赵东旭 | Non-contact deicer and method for power transmission line |
-
2016
- 2016-11-24 CN CN201611049838.5A patent/CN106654992B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332684A (en) * | 1998-12-01 | 2002-01-23 | 达特茅斯学院理事会 | Methods and structures for removing ice from surfaces |
| CN101325321A (en) * | 2008-04-09 | 2008-12-17 | 中国工程物理研究院应用电子学研究所 | Method for deicing aerial high voltage power line using laser |
| CN101562320A (en) * | 2009-05-08 | 2009-10-21 | 国网电力科学研究院 | Method and system for laser deicing for power transmission and transformation equipment |
| DE102010004310A1 (en) * | 2010-01-11 | 2011-07-14 | Rolf Dr. Ing. 47443 Engels | Assembly for eliminating ice formation on contact wires of e.g. train, has laser formed in defined working area, where energy acts upon freezing of wire in stand state and during drive state such that icing crystal structure is burst open |
| CN102489877A (en) * | 2011-12-23 | 2012-06-13 | 河南科技大学 | Laser shock method and laser shock device |
| CN104410029A (en) * | 2014-12-27 | 2015-03-11 | 赵东旭 | Non-contact deicer and method for power transmission line |
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| Publication number | Publication date |
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| CN106654992A (en) | 2017-05-10 |
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Effective date of registration: 20210914 Address after: 325000 Room 401, building C1, marine science and technology entrepreneurship Park, Longwan District, Wenzhou City, Zhejiang Province Patentee after: Wenzhou tianqin Laser Technology Co.,Ltd. Address before: 325000 Wenzhou City National University Science Park incubator, No. 38 Dongfang South Road, Ouhai Economic Development Zone, Wenzhou, Zhejiang Patentee before: WENZHOU VOCATIONAL & TECHNICAL College |
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Granted publication date: 20180424 Termination date: 20211124 |