CN103121019A - 500 KV electric transmission line insulator electrification water washing method - Google Patents
500 KV electric transmission line insulator electrification water washing method Download PDFInfo
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Abstract
The invention provides a 500 KV electric transmission line insulator electrification water washing method. The method mainly comprises the steps of setting the water resistivity of water and adjusting pressure of a hydraulic giant; judging the wind direction and wind power on a tower and adjusting the length of a water column according to the wind direction and the wind power; placing the hydraulic giant at a given position and washing triphase insulators of 500 KV electric transmission lines in sequence from bottom to top; washing insulator chains on the downwind side firstly and then washing insulator chains on the weather side during insulator chain washing, and washing piece by piece from bottom to top and washing by starting from the wire side in sequence for suspension insulator chains; and judging whether phenomena of sewage dripping and partial arcing striking appear for washed insulators, and rewashing corresponding insulators if the phenomena appear. The 500 KV electric transmission line insulator electrification water washing method enables electrification water washing to be achievable for most of the 500 KV electric transmission lines, line outrage is reduced, pollution flashover is avoided, safety and stability of power grids are ensured, and good economic and social benefits are created.
Description
Technical field
The present invention relates to the ultra-high-tension power transmission line Anti-pollution Flashover, particularly relate to a kind of 500kV transmission line insulator live water flushing method.
Background technology
Develop rapidly along with industrial economy and urban construction, continuity and quality to power supply have proposed the more higher requirement of property, prevent the transmission line of electricity pollution flashover, prevent the generation of electric grid large area power cut accident, guarantee that the reliable supply of power network safety operation and electric power is extremely important.Yet the transmission line equipment long term exposure is particularly regional, coastal and the salt-soda soil is regional in industry in the Nature, is subject to that industrial waste gas, seawater or nature are saline and alkaline, the effect of dust, usually can be in its insulator surface formation filth to a certain degree.These contain the filth of salt, acid, alkaline components, and in general water soluble, be electrolyte after filth is water-soluble, has very strong electric conductivity.Contaminated insulator, electricity is led increase, and insulating properties reduce, and leakage current sharply increases, and its flashover voltage reduces greatly, and pollution flashover just may occur in this moment.Especially leak than can not satisfy filth apart from insulator inadequate or that adopt and require the time when insulator design, pollution flashover just must occur.Pollution flashover accident causes power supply reliability to descend, thereby brings serious negative effect for industrial and agricultural production and resident living power utility in case generation can directly cause user's large tracts of land, the long-time power failure, and operational management has proposed very high requirement to transmission line of electricity for this.
Guaranteeing power supply continuously, is that each department of national economy is to the basic demand of electric power.Livewire work has a power failure to improving power supply reliability, reducing, and very large economic and social benefit is arranged.And the livewire work mode in power system at present is varied, and main charged anti-pollution measure has charged (machinery) cleaning, charged air-blowing cleaning, the living water washing etc. done.Wherein the charged methods such as (machinery) cleaning, charged air-blowing cleaning of doing all exist obvious limitation, and living water washing is a kind of livewire work mode of electric power electroceramics or glass external insulation of cleaning with the pressure water column of high resistivity.Disclose a kind of " mobile type live washing device for transmission line " in application number is 200910039280.6 Chinese patent, it is rational in infrastructure, safe, reliable, convenient to have, and is applicable to the characteristics of remote, high efficiency, extensive field work.Therefore, living water washing is not only safe and reliable technically, and compares with alternate manner, has many-sided advantage, has that uninterrupted power supply, cleaning performance are good, the efficiency advantages of higher, is one of effective measures that prevent electric device generation pollution flashover.
At present, be directed to the general efficient of 500kV transmission line insulator live water flushing method lower, therefore, the flushing of 500kV electric transmission line isolator remains the anti-soil technology difficult problem that the assistant officer is to be solved.
Summary of the invention
Based on this, be necessary to provide a kind of 500kV transmission line insulator live water flushing method, in conjunction with mobile type live washing device for transmission line, rinse for the 500kV electric transmission line isolator, have the advantages such as efficient is high, cost is low, scope is wide, effective, safe, convenient.
A kind of 500kV transmission line insulator live water flushing method comprises the steps;
Step a, mobile type live washing device for transmission line is carried out ground connection, set the water resistance rate of water and adjust hydraulic giant pressure;
Step b, connection hydraulic giant and aqueduct carry out reliable ground to the rifle mouth, and judgement tower upwind and wind-force are adjusted water column length according to described wind direction and wind-force;
Step c, hydraulic giant is placed on the position of setting, order is from the bottom to top rinsed the insulator of 500kV transmission line of electricity three-phase successively; When rinsing insulator chain, the insulator chain of subpunch downwind side, the insulator chain of backlash weather side for suspension insulator, from bottom to top rinses successively piecewise, begins successively to rinse from side of wire was during flushing;
Whether the insulator after steps d, judgement are rinsed sewage drippage, local starting the arc phenomenon occur, if, again rinse corresponding insulator, if not, finish to rinse.
Above-mentioned 500kV transmission line insulator live water flushing method, in the situation that the normal charging operation of 500kV transmission line of electricity, utilize the water of setting water resistance rate and the water column of certain pressure, by backwashing manner more reasonable, efficient and that optimize, filth to insulator surface is rinsed, and can carry out the living water washing operation to most 500kV transmission line of electricity, has reduced line outage, has prevented the pollution flashover generation, guarantee the safety and stablization of electrical network, created good economic and social benefits.
Description of drawings
Fig. 1 is the flow chart of the 500kV transmission line insulator live water flushing method of an embodiment;
Fig. 2 is for adopting rush-harvesting and rush-planting to replace the position view that douche is rinsed insulator;
Fig. 3 is for adopting single rifle to replace douche to the schematic diagram of insulator flushing process.
The specific embodiment
Be described in detail below in conjunction with the specific embodiment of accompanying drawing to 500kV transmission line insulator live water flushing method of the present invention.
Fig. 1 is the flow chart of the 500kV transmission line insulator live water flushing method of an embodiment, comprises the steps:
Step a, mobile type live washing device for transmission line is carried out ground connection, set the water resistance rate of water and adjust hydraulic giant pressure.
Particularly, carrier vehicle sail reach operation field after, the situation of ground handling personnel inspection mobile type live washing device for transmission line is first carried out ground connection to carrier vehicle, control by hydraulic means again water pipe is laid to steel tower, the water resistance rate of test water and adjustment hydraulic giant pressure.Preferably, set the water resistance rate of water greater than 100000 Ω .cm.
Step b, connection hydraulic giant and aqueduct carry out reliable ground to the rifle mouth, and judgement tower upwind and wind-force are adjusted water column length according to described wind direction and wind-force.
Particularly, after work high above the ground personnel Deng Ta is fixed in coaster on the reliable member of steel tower, cage is relaxed to ground to the insulation pull rope in steel tower, the ground handling personnel coordinate aqueduct and hydraulic giant are drawn to steel tower, after the work high above the ground personnel are fixed in water pipe on the reliable member of steel tower, hydraulic giant and aqueduct are connected, check the insulator situation, judgement tower upwind and wind-force, the rifle mouth is carried out reliable ground, test hydraulic giant pressure and water column length are guaranteed to begin after above-mentioned situation all meets the requirements to rinse.
Step c, hydraulic giant is placed on the position of setting, order is from the bottom to top rinsed the insulator of 500kV transmission line of electricity three-phase successively; When rinsing insulator chain, the insulator chain of subpunch downwind side, the insulator chain of backlash weather side for suspension insulator, from bottom to top rinses successively piecewise, begins successively to rinse from side of wire was during flushing.
Particularly, after at the scene rigging up and debugging being completed, the aloft work personnel begin to carry out the living water washing operation.Preferably, hydraulic giant can be placed on tower body or cross-arm, must be first outside safe distance from the distance of transmission line of electricity, when keeping rinsing in flushing process, the angle of water column and insulator is greater than 45 °.
In addition, need to take corresponding technical safety measures in flushing process, the work high above the ground personnel must strictly control the distance between human body and electrical body, guarantee personal safety.Must guarantee that the 500kV safe distance is greater than 3.6 meters.The work high above the ground personnel must dress by natural or synthetic material and make, be woven with the Work protection articles for use of conductive fiber in it: shielding (conduction) clothes, screening glove, screening socks and shielding footwear, and connect a bulk loop, prevent that operating personnel are subject to the impact of electric field.In flushing process, mobile type live washing device for transmission line is answered reliable ground, should closely monitor water pump pressure and water level during flushing, and in time adjust, and prevents from cutting off the water supply in flushing process or decompression.
Whether the insulator after steps d, judgement are rinsed sewage drippage, local starting the arc phenomenon occur, if, again rinse corresponding insulator, if not, finish to rinse.
Particularly, after flushing was complete, whether the insulator that judgement is rinsed sewage drippage, local starting the arc phenomenon occurred.If after rinsing from being rinsed the clear water that is that insulator equipment flows down, can think that this equipment has been rinsed totally, porcelain piece or glass insulator smooth and bright surface, noresidue stain, the dirt (filth that difficulty is removed, in being not included in as filths such as chemical industry, cement), without the sewage drippage, if there is sewage drippage, local starting the arc phenomenon, again rinse corresponding insulator.
In one embodiment, rinse in the process of insulator at described step c, the angle of hydraulic giant is adjusted in the variation of Real-Time Monitoring tower upwind and wind speed according to the wind direction of described monitoring, suspend flushing operation when wind speed surpasses setting value; Said process has been guaranteed the security of flushing process.
In one embodiment, if what rinse in described step c is four insulators in parallel, adopt two hydraulic giants alternately simultaneously four insulator strings to be rinsed when rinsing, first rinse the insulator of weather side during flushing, the insulator of afterflush downwind side.
Shown in Figure 2, Fig. 2 is for adopting rush-harvesting and rush-planting to replace the position view that douche is rinsed insulator, A, two hydraulic giants of B rinse four series connection insulators respectively, wherein, rinse respectively insulator chain of weather side and an insulator chain of downwind side according to two hydraulic giants of wind direction.
With reference to shown in Figure 3, Fig. 3 is for adopting rush-harvesting and rush-planting to replace douche to the schematic diagram of insulator flushing process, and in figure, numerical order is flush sequence, and concrete order is: 13-zone, 22-zone, 12-zone, 21-zone, regional 11-zone 23.Wherein, intensive arrow represents to rinse piecewise direction, and intensive arrow represents that flushing speed is low speed; Sparse arrow represents flyback, and sparse arrow represents at a high speed.
In one embodiment, rinse in the process of insulator at described step c, successively rinse to the middle part by part bottom the insulating part of insulator, flyback is to the bottom again, after confirming that the bottom is rinsed well, successively rinse to the top by part from the bottom again, after confirming that the top arc extinguishing is completed and rinsed well, more progressively flyback to the bottom.
Above-mentioned flushing process adopts twice methods of hydraulic giant one punching, and less, the dirty situation of sheet number that is fit to insulator is not the flushing of very serious insulator.
In one embodiment, rinse in the process of insulator at described step c, successively upwards rinse to 1/3rd places by part bottom the insulating part of insulator, then flyback is to the bottom, successively by 2/3rds places of part flushings, then flyback is to the bottom by the bottom, then by the bottom successively by the part flushing to the top, after confirmation was dirty without sewage, flyback was to the bottom.
Above-mentioned flushing process adopts three times methods of hydraulic giant one punching, the flushing of the insulator that less, the dirty situation of sheet number of suitable insulator is relatively serious.
In one embodiment, rinse in the process of insulator at described step c, successively upwards rinse by part bottom the insulating part of insulator, flyback after upwards rinsing four or five, flyback is successively upwards rinsed by part from the bottom behind the bottom more again, then after increasing four or five again flyback to the bottom, circulation flushing like this, complete until whole insulator is rinsed, confirms to stop flushing after dirty without sewage.
Above-mentioned flushing process adopts hydraulic giant one to rush method many times, the flushing of the insulator that more, the dirty situation of sheet number of suitable insulator is comparatively serious.
500kV transmission line insulator live water flushing method of the present invention, in the situation that the normal charging operation of transmission line of electricity, step on the mode of tower operation by rinsing personal height, utilize mobile type live washing device for transmission line that the filth of insulator surface is rinsed.Wherein, be not limited to certain specific mobile type live washing device for transmission line, be specially adapted to following regional, the ac rated voltage 500kV transmission line of electricity living water washing operation of height above sea level 1000m.Can carry out near the insulator of the 500kV transmission line of electricity of road networks great majority by the method and rinse, have safely, convenient, the characteristics of broad covered area are fit to the living water washing requirement of most of 500kV transmission lines of electricity, have good economic benefit.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a 500kV transmission line insulator live water flushing method, is characterized in that, comprises the steps:
Step a, mobile type live washing device for transmission line is carried out ground connection, set the water resistance rate of water and adjust hydraulic giant pressure;
Step b, connection hydraulic giant and aqueduct carry out reliable ground to the rifle mouth, and judgement tower upwind and wind-force are adjusted water column length according to described wind direction and wind-force;
Step c, hydraulic giant is placed on the position of setting, order is from the bottom to top rinsed the insulator of 500kV transmission line of electricity three-phase successively; When rinsing insulator chain, the insulator chain of subpunch downwind side, the insulator chain of backlash weather side for suspension insulator, from bottom to top rinses successively piecewise, begins successively to rinse from side of wire was during flushing;
Whether the insulator after steps d, judgement are rinsed sewage drippage, local starting the arc phenomenon occur, if, again rinse corresponding insulator, if not, finish to rinse.
2. 500kV transmission line insulator live water flushing method according to claim 1, is characterized in that, sets the water resistance rate of water greater than 100000 Ω .cm
3. 500kV transmission line insulator live water flushing method according to claim 1, is characterized in that, rinses in the process of insulator at described step c, and when keeping rinsing, the angle of water column and insulator is greater than 45 °.
4. 500kV transmission line insulator live water flushing method according to claim 1, it is characterized in that, rinse in the process of insulator at described step c, the variation of Real-Time Monitoring tower upwind and wind speed, adjust the angle of hydraulic giant according to the wind direction of described monitoring, suspend flushing operation when wind speed surpasses setting value.
5. 500kV transmission line insulator live water flushing method according to claim 1, it is characterized in that, if what rinse in described step c is four insulators in parallel, adopt two hydraulic giants alternately simultaneously four insulator strings to be rinsed when rinsing, first rinse the insulator of weather side during flushing, the insulator of afterflush downwind side.
6. 500kV transmission line insulator live water flushing method according to claim 1, it is characterized in that, rinse in the process of insulator at described step c, successively rinse to the middle part by part bottom the insulating part of insulator, flyback to the bottom, after confirming that the bottom is rinsed well, is more successively rinsed to the top by part from the bottom again, after confirming that the top arc extinguishing is completed and rinsed well, more progressively flyback to the bottom.
7. 500kV transmission line insulator live water flushing method according to claim 1, it is characterized in that, rinse in the process of insulator at described step c, successively upwards rinse to 1/3rd places by part bottom the insulating part of insulator, then flyback to the bottom, is successively pursued 2/3rds places of part flushing by the bottom, flyback is to the bottom again, successively rinsed to the top by part by the bottom again, confirms dirty without sewage after, the bottom is arrived in flyback.
8. 500kV transmission line insulator live water flushing method according to claim 1, it is characterized in that, rinse in the process of insulator at described step c, successively upwards rinsed by part by the insulating part of insulator bottom, upwards rinse four or five after flyback, flyback is successively upwards rinsed by part from the bottom behind the bottom more again, after increasing again four or five again flyback to the bottom, so circulation flushing, complete until whole insulator is rinsed, and confirms to stop flushing after dirty without sewage.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815814A (en) * | 2015-04-28 | 2015-08-05 | 山东鲁能智能技术有限公司 | Insulation protection system and method for charging water washing robot in transformer substation |
| CN104998856A (en) * | 2015-07-31 | 2015-10-28 | 中国能源建设集团广东火电工程有限公司 | Electrified water washing device and method |
| CN105562381A (en) * | 2014-10-14 | 2016-05-11 | 山西晋缘电力化学清洗中心有限公司 | Live washing method for suspension insulator string and washing device |
| CN105562382A (en) * | 2014-10-14 | 2016-05-11 | 山西晋缘电力化学清洗中心有限公司 | Live washing method for strain insulator string |
| CN110560413A (en) * | 2019-10-24 | 2019-12-13 | 山西晋缘电力化学清洗中心有限公司 | 35kV equipment external insulation charged water washing method and washing system used by same |
| CN112099554A (en) * | 2020-07-14 | 2020-12-18 | 国网安徽省电力有限公司检修分公司 | Control method and system for flushing insulator of high-voltage transmission line |
| CN112495894A (en) * | 2020-10-27 | 2021-03-16 | 国网福建省电力有限公司检修分公司 | Method for realizing anti-pollution flashover electrification control by using unmanned aerial vehicle platform |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5119851A (en) * | 1988-08-26 | 1992-06-09 | Luigi Paris | Equipment to carry out maintenanace operations, particularly washing, on insulator chains of high voltage electric lines |
| JP2005081308A (en) * | 2003-09-10 | 2005-03-31 | Ebara Kogyo Senjo Kk | Washing device and washing method |
| CN101337229A (en) * | 2008-08-11 | 2009-01-07 | 张平安 | Electric insulation cleaning method of high-pressure electric power apparatus |
| CN101562318A (en) * | 2009-05-08 | 2009-10-21 | 广东电网公司佛山供电局 | Mobile type live washing device for transmission line |
| CN101804408A (en) * | 2010-03-17 | 2010-08-18 | 国网电力科学研究院 | Electric cleaning device of dirty belt of post insulator of DC converter station |
| CN102773226A (en) * | 2012-07-27 | 2012-11-14 | 武汉大学 | Method and device for flushing 500kV post insulator with charged water |
-
2013
- 2013-03-07 CN CN201310073412.3A patent/CN103121019B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5119851A (en) * | 1988-08-26 | 1992-06-09 | Luigi Paris | Equipment to carry out maintenanace operations, particularly washing, on insulator chains of high voltage electric lines |
| JP2005081308A (en) * | 2003-09-10 | 2005-03-31 | Ebara Kogyo Senjo Kk | Washing device and washing method |
| CN101337229A (en) * | 2008-08-11 | 2009-01-07 | 张平安 | Electric insulation cleaning method of high-pressure electric power apparatus |
| CN101562318A (en) * | 2009-05-08 | 2009-10-21 | 广东电网公司佛山供电局 | Mobile type live washing device for transmission line |
| CN101804408A (en) * | 2010-03-17 | 2010-08-18 | 国网电力科学研究院 | Electric cleaning device of dirty belt of post insulator of DC converter station |
| CN102773226A (en) * | 2012-07-27 | 2012-11-14 | 武汉大学 | Method and device for flushing 500kV post insulator with charged water |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562381A (en) * | 2014-10-14 | 2016-05-11 | 山西晋缘电力化学清洗中心有限公司 | Live washing method for suspension insulator string and washing device |
| CN105562382A (en) * | 2014-10-14 | 2016-05-11 | 山西晋缘电力化学清洗中心有限公司 | Live washing method for strain insulator string |
| CN104815814A (en) * | 2015-04-28 | 2015-08-05 | 山东鲁能智能技术有限公司 | Insulation protection system and method for charging water washing robot in transformer substation |
| CN104998856A (en) * | 2015-07-31 | 2015-10-28 | 中国能源建设集团广东火电工程有限公司 | Electrified water washing device and method |
| CN110560413A (en) * | 2019-10-24 | 2019-12-13 | 山西晋缘电力化学清洗中心有限公司 | 35kV equipment external insulation charged water washing method and washing system used by same |
| CN112099554A (en) * | 2020-07-14 | 2020-12-18 | 国网安徽省电力有限公司检修分公司 | Control method and system for flushing insulator of high-voltage transmission line |
| CN112495894A (en) * | 2020-10-27 | 2021-03-16 | 国网福建省电力有限公司检修分公司 | Method for realizing anti-pollution flashover electrification control by using unmanned aerial vehicle platform |
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Address after: 528000 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Co-patentee after: Guangdong Weiheng Electric Power Technology Development Co., Ltd. Patentee after: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORPORATION Co-patentee after: WuHan University Address before: 528000 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Co-patentee before: Guangdong Weiheng Electric Power Technology Development Co., Ltd. Patentee before: Foshan Power Supply Bureau, Guangdong Power Grid Corporation Co-patentee before: WuHan University |
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Effective date of registration: 20191101 Address after: 528000 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Co-patentee after: Guangdong Weiheng Power Transmission and Distribution Co., Ltd. Patentee after: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORPORATION Co-patentee after: WuHan University Address before: 528000 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Co-patentee before: Guangdong Weiheng Electric Power Technology Development Co., Ltd. Patentee before: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORPORATION Co-patentee before: WuHan University |
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