CN106654992A - Laser deicing method for power transmission line - Google Patents
Laser deicing method for power transmission line Download PDFInfo
- Publication number
- CN106654992A CN106654992A CN201611049838.5A CN201611049838A CN106654992A CN 106654992 A CN106654992 A CN 106654992A CN 201611049838 A CN201611049838 A CN 201611049838A CN 106654992 A CN106654992 A CN 106654992A
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- Prior art keywords
- transmission line
- power transmission
- laser
- organic polymer
- 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 39
- 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
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 238000005422 blasting Methods 0.000 claims abstract description 7
- 230000035939 shock Effects 0.000 claims abstract description 7
- 238000002679 ablation Methods 0.000 claims abstract description 5
- 230000008016 vaporization Effects 0.000 claims abstract description 5
- 238000009834 vaporization Methods 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 11
- 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
- 239000012634 fragment Substances 0.000 claims description 3
- 238000013467 fragmentation Methods 0.000 claims description 3
- 238000006062 fragmentation reaction Methods 0.000 claims description 3
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 2
- 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
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002309 gasification 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
- 239000007921 spray Substances 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a laser deicing method for a power transmission line. The method comprises the following steps that: (1) the surface of a bare power transmission line without an insulation sheath is coated with an organic polymer coating ; (2) when the power transmission line is covered with ice, a pulsed laser beam is outputted, the laser beam is made to pass through a transparent ice layer and focus on the organic polymer coating on the surface of the power transmission line, vapor pressure generated by the ablation and vaporization of the organic polymer coating forms instantaneous blasting shock waves, the ice layer is smashed by the blasting shock waves, and the broken ice layer falls; and (3) the focusing position of the laser beam on the organic polymer coating is moved, so that the laser beam can perform scanning movement along the power transmission line, and therefore, the deicing of the long-distance power transmission line can be realized. According to the laser deicing method for the power transmission line of the invention, the laser absorption, rapid temperature rise and ablation vaporization effect of the organic polymer coating are applied, and a restraint effect wrapping the ice layer is ingeniously utilized to generate the blasting shock waves, so that the ice layer can be smashed, and therefore, the effective deicing of the power transmission line can be realized.
Description
Technical field
The invention belongs to laser application, and in particular to a kind of power transmission line laser deicing method.
Background technology
According to incompletely statistics, since the last century mid-term, China's transmission line of electricity is subjected to 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 electrical network
Operating and people's lives bring very big inconvenience.Cause the generation 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 achieved with certain effect.At present both at home and abroad de-icing method is various, 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 using additional heating source or wire self-heating the method to melt icing.Heat common at present
Power ice-melting method has excess current de-icing method, short circuit current ice-melt, three kinds of methods of DC ice melting.Mechanical deicing's method is exactly outer using machinery
The method that power forces the coating ice falling on wire.Natural deicing method refers to and is not required to outside energy and realizes the side of deicing by natural force
Method.Such as on transmission line of electricity install resistance snow ring, counterweight device, when accumulated snow or icing reach to a certain degree, by wind-force,
Gravity etc. acts on self falling, and this de-icing method is simple, but with stronger contingency, it is impossible to realize reliable deicing.
In addition to the method described above, the method such as artificial deicing, laser deicing is also in application or research.Artificial deicing method master
If beaing electric wire along the line by surfaceman's pull bar or bamboo rod etc., coating ice falling, this method is set to remain China and mainly adopt
One of de-icing method.But the method inefficiency, environment limits very big to operation, and the life security of power worker is subject to
Greatly threaten.
Laser deicing method is the method for carrying out deicing 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.The method has remote, non-connecing
Touch, external heat source, the advantages of equipment, not power-off deicing need not be increased inside electrical network.But the 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 to the attenuation rate of 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 corresponding change, 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 directed to above-mentioned the deficiencies in the prior art, there is provided a kind of not damaged, the transmission of electricity line laser of highly compatible are removed
Ice method.
The present invention is achieved through the following technical solutions：
A kind of power transmission line laser deicing method, comprises the 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 adopted in subsequent step, coating layer thickness 0.01mm～1mm；
(2) when there is ice to cover on power transmission line, pulse laser beam is exported, makes laser beam penetrate transparency ice layer and focus on transmission of electricity
On the organic polymer coating on line surface, very fast intensification occurs after organic polymer coating absorption laser, and (heating rate is up to 106
～107DEG C/s), cause organic polymer coating to produce violent ablation by adjusting laser technical parameterses control laser power density
Vaporization phenomenon, the vapour pressure of generation forms moment Blasting shock wave, cracks Laser Focusing effect of irradiation area and neighbouring heat affected area
Ice sheet, simultaneously because the conduction of heat of organic polymer coating and metal power transmission line, Laser Focusing effect of irradiation will be caused
There is thin layer and melt in interface that the ice sheet of area and neighbouring heat affected area is contacted with organic polymer coating, that is, release ice sheet with it is organic
The solid-state adhesive force of polymer coating；
(3) mobile laser beam causes laser beam to sweep as track along power transmission line in the focal position of organic polymer coating
Motion is retouched, (spacing distance is less than or equal to Laser Focusing effect of irradiation area and neighbouring heat affecting for scanning track spacing certain distance
Sector width), the ice sheet fragment for realizing the region fragmentation on power transmission line through laser scanning falls down under gravity, along power transmission line
Make the deicing that this scanning motion is capable of achieving long-distance transmission line.
The present invention has the advantages that：
1st, power transmission line laser deicing method of the present invention is by the absorption laser of organic polymer coating, quick liter
Temperature, ablation vapography, the ingenious effect of contraction using parcel ice sheet produces Blasting shock wave, and crushes ice sheet, using 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 is using metal and the different melting points of coating material, ice detachment laser
On the metal level of power transmission line itself without impact, lossless deicing is realized.
3rd, power transmission line laser deicing method of the present invention, laser beam realizes deicing through " transparent " ice sheet, and covers
Ice layer thickness is unrelated, therefore many thick ice can be removed.
4th, present invention utilizes high-absorbility characteristic of the 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, low cost, and not
Power transmission line can be caused to damage.
5th, the present invention carries out deicing using Laser Scanning, compares tradition machinery deicing, artificial de-icing method, realizes
Remote operation, contactless deicing, it is quick, easy to operate and safer.
Specific embodiment
With reference to specific embodiment, the present invention will be further described in detail.
The invention provides a kind of power transmission line laser deicing method, specifically includes 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 adopted in subsequent step；The organic polymer coating can be in power transmission line without ice
When brush or spray, coating layer thickness 0.01mm～1mm；
(2) when there is ice to cover on power transmission line, export pulse laser beam, make laser beam penetrate " transparent " ice sheet focus on it is defeated
On the organic polymer coating of wire surface, very fast intensification occurs after organic polymer coating absorption laser, and (heating rate is reachable
106～107DEG C/s), cause organic polymer coating to produce acutely burning by adjusting laser technical parameterses control laser power density
Erosion vaporization phenomenon, the vapour pressure of generation forms moment Blasting shock wave, cracks Laser Focusing effect of irradiation area 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 irradiation to make
There is thin layer and melt in the interface contacted with organic polymer coating with the ice sheet of area and neighbouring heat affected area, that is, release ice sheet and have
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) mobile laser beam causes laser beam to sweep as track along power transmission line in the focal position of organic polymer coating
Motion is retouched, (spacing distance is less than or equal to Laser Focusing effect of irradiation area and neighbouring heat affecting for scanning track spacing certain distance
Sector width), the ice sheet fragment for realizing the region fragmentation on power transmission line through laser scanning falls down under gravity, along power transmission line
Make the deicing that this scanning motion is capable of achieving long-distance transmission line.
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 requirement.
Claims (1)
1. a kind of power transmission line laser deicing method, it is characterised in that comprise the 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 is applied
Layer is more than 70% to the laser beam absorption rate adopted in subsequent step, coating layer thickness 0.01mm～1mm；
(2) when there is ice to cover on power transmission line, pulse laser beam is exported, makes laser beam penetrate transparency ice layer and focus on power transmission line table
On the organic polymer coating in face, organic polymer coating absorbs and very fast intensification occurs after laser, by adjusting laser technology ginseng
Numerical 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 effect of irradiation area and neighbouring heat affected area, simultaneously because organic polymer coating
And the conduction of heat of metal power transmission line, by causing, the ice sheet in Laser Focusing effect of irradiation area and neighbouring heat affected area is poly- with organic
There is thin layer and melt in the interface of compound coating layer touch, that is, release the solid-state adhesive force of ice sheet and organic polymer coating；
(3) mobile laser beam causes laser beam to make track scanning fortune along power transmission line in the focal position of organic polymer coating
It is dynamic, scan track spacing certain distance so that the ice sheet fragment of the region fragmentation on power transmission line through laser scanning is made in gravity
Fall down with, along power transmission line the deicing that this scanning motion is capable of achieving long-distance transmission line is made.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106654992A true CN106654992A (en) | 2017-05-10 |
| CN106654992B CN106654992B (en) | 2018-04-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611049838.5A Expired - Fee Related CN106654992B (en) | 2016-11-24 | 2016-11-24 | A kind of power transmission line laser deicing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106654992B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112382735A (en) * | 2020-11-17 | 2021-02-19 | 东莞赣锋电子有限公司 | Method for preparing lithium ion battery pole piece by laser cleaning |
| CN112769084A (en) * | 2020-07-24 | 2021-05-07 | 宝宇(武汉)激光技术有限公司 | Laser-microwave composite deicing system and method |
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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112769084A (en) * | 2020-07-24 | 2021-05-07 | 宝宇(武汉)激光技术有限公司 | Laser-microwave composite deicing system and method |
| CN112382735A (en) * | 2020-11-17 | 2021-02-19 | 东莞赣锋电子有限公司 | Method for preparing lithium ion battery pole piece by laser cleaning |
| 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 |
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| Publication number | Publication date |
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| CN106654992B (en) | 2018-04-24 |
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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 |