CN102266858B - Gas-liquid mixed sandblasting insulation method for cleaning high-voltage electrified insulator - Google Patents
Gas-liquid mixed sandblasting insulation method for cleaning high-voltage electrified insulator Download PDFInfo
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- CN102266858B CN102266858B CN 201110193511 CN201110193511A CN102266858B CN 102266858 B CN102266858 B CN 102266858B CN 201110193511 CN201110193511 CN 201110193511 CN 201110193511 A CN201110193511 A CN 201110193511A CN 102266858 B CN102266858 B CN 102266858B
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Abstract
The invention relates to a gas-liquid mixed sandblasting insulation method for cleaning a high-voltage electrified insulator, which can effectively solve the problem of cleaning the high-voltage electrified insulator. In the method, gases and a cleaning agent are combined to clean the high-voltage insulator, and the method comprises the following steps of: preparing a high-voltage insulating cleaning agent; preparing a cleaning solution by mixing the high-voltage insulating cleaning agent and solid epoxy resin sand in a weight ratio of 40:1, fully uniformly mixing the cleaning solution in a mixer, and conveying the cleaning solution to a spray gun through an infusion pump via an infusion pipe; and delivering air to the spray gun through an air compressor via an air filter, spraying the cleaning solution to the high-voltage insulator at a speed of over 100m/s under dual action of the air compressor and the infusion pump so as to clean the high-voltage insulator. The method has the advantages of advancement, simple equipment, good cleaning effect, high speed, safe operation and low labor intensity, and is an innovation for cleaning the electrified insulator.
Description
Technical field
The present invention relates to power equipment, the method that insulator is cleaned in particularly a kind of gas-liquid mixed sandblast electrification in high voltage insulation.
Background technology
Insulator is requisite on the power equipment, because insulator is exposed in the air, easy contaminated, producing pollution flashover is common occurrence, in case produce safety and normal operation that pollution flashover can influence transmission facility.
So-called pollution flashover accumulates in the lip-deep filthy material with electric conductivity of line insulator exactly, after wet weather makes moist, the dielectric level of insulator is reduced greatly, the flashover fault that under normal operation, takes place.The filthy material of insulator surface generally is divided into two big types:
(1) micronic dust that floats in the natural dirty air, salt fog that sea wind brings (forming salt efflorescence) and birds droppings etc. at insulator surface.
(2) flue dust and the waste gas of discharges such as industrial filthy thermal power plant, chemical plant, glass factory, cement plant, Metallurgical Factory and steam locomotive.Naturally the filthy material of insulator surface is prone to fallen by rain-out, and industrial filthy material then constitutes film attached to insulator surface, is difficult for being fallen by rain-out.
In order to prevent the pollution flashover accident of overhead transmission line insulator, general often take following measure:
(1) to filthy: regularly clean insulator.Annual before the multiple arrival in season of pollution flashover accident, must once generally clean insulator; Seriously regional in filth, should suitably increase the cleaning number of times.
(2) reinforced insulation increases creep age distance, improves dielectric level.As increase filthy regional insulator sheet number, or adopt dust-proof insulator.Operating experience shows, in the pollution severity location, adopts dust-proof insulator, and anti-fouling effect is better.
(3) be coated on the insulator surface to materials such as moisture employing anti-pollution flashover organosilicons, to improve the stain resistance of insulator.If scribble this antifouling flush paint on the insulator, then rainwater drops on all the other, can form the globule and tumble along insulator surface, can not make insulator surface moistening, can not reduce the dielectric level of insulator and causes flashover.
Because because of rising, therefore keep the cleaning of insulator surface is the key of dealing with problems to pollution flashover by filthy material.Environment is inevitable to the pollution of power equipment under the existing social and economic condition of China.Particularly rainwater less autumn and winter season, owing to there is not the souring of rainwater, the long-pending dirt of electric power facility is serious, runs into the greasy weather, pernicious pollution flashover accident very easily takes place in the snow sky.For the generation that prevents pollution flashover accident must regularly be cleaned the dielectric level that recovers insulator to insulator.Cleaning is divided into have a power failure cleaning and live cleaning again.
Have a power failure cleaning because labour intensity is big, and efficient is low, and power off time is difficult to condition restriction such as arrangement, can't satisfy the needs of power department.Present stage power department commonly used be that line facility to filthy area carries out charged cleaning (sweeping).
The charged cleaning of power equipment (sweeping) is divided into charged machinery cleaning, Living water washing, and charged air-blowing, several work methods such as charged insulation cleaning agent cleaning, specifically:
1. do cleaning: power system high voltage electric power equip ment and circuit are carried out the charged direct cleaning mode of wiping electrical equipment of smearing, be called and do cleaning.
2. air-blowing: this be a kind of purge electrical switchgear, feed line terminals row etc. and dielectrics such as sawdust be sprayed onto with compressed air with compressed air be cleaned on the thing, thereby dirt removal is reached the cleaning mode of cleaning purpose.
3. water flushing: the water flushing is that power system is a kind of method of medium to the charged cleaning of part high-tension apparatus with water.
4. charged insulation cleaning agent cleans
Refer to adopt highly insulate, burn, strong detergency, free of contamination insulation cleaning agent cooperate special-purpose cleaning equipment, is used in combination the electric cleaning brush of being processed by insulating materials, the livewire work mode of cleaning power equipment external insulation.
All there is such or such problem in said method for various reasons, and cleaning performance is unsatisfactory, can not satisfy the needs that in the real work insulator cleaned, and therefore, its innovation is imperative.
Summary of the invention
To above-mentioned situation, for overcoming the defective of prior art, the object of the invention just provides the method that insulator is cleaned in a kind of gas-liquid mixed sandblast electrification in high voltage insulation, and the cleaning that can effectively solve the electrification in high voltage insulator guarantees the problem that power equipment safety moves.
The technical scheme that the present invention solves is, adopts gas and cleaning agent to combine, or is called liquid blasting and High-Voltage Insulation cleaning agent and combines high-tension insulator is cleaned; The steps include: at first preparation High-Voltage Insulation cleaning agent, and then preparation cleaning fluid; Cleaning fluid is to be mixed with the weight ratio of 40:1 by the epoxy resin sand of High-Voltage Insulation cleaning agent and solid to process; Afterwards cleaning fluid is inserted blender and fully mix, deliver to spray gun through woven hose, simultaneously by infusion pump; Air is delivered to spray gun by air compressor through tracheae through air filter; Cleaning fluid sprays to high-tension insulator with the speed more than the 100m/s under the double action of air compressor and infusion pump, realize the cleaning to high-tension insulator.
The inventive method is advanced, and equipment is simple, and cleaning performance is good, and speed is fast, handling safety, and labour intensity is little, is that the innovation on the insulator is cleaned in livewire work.
The specific embodiment
Elaborate below in conjunction with concrete condition and accompanying drawing specific embodiments of the invention.
The present invention is realized by following steps in practical implementation:
1. preparation High-Voltage Insulation cleaning agent, this cleaning agent are by weight percent meter: solvent naphtha 40-50%, lightweight solvent naphtha 7-11%, No. 25 transformer oil 40-50% and bleeding agent 0.5-1.5% mix and process; Described lightweight solvent naphtha is 200# solvent naphtha or 400# solvent naphtha; Described bleeding agent is claimed wetting agent or surfactant again, a kind of for methyl pyrrolidone, sulfonated oil, Nekal BX or soap;
2. preparation cleaning fluid; The epoxy resin sand of above-mentioned High-Voltage Insulation cleaning agent and solid mixed with weight ratio 40:1 process, described epoxy resin sand is to be pulverized by epoxy resin, crosses 100 mesh sieves; With deionized water the epoxy resin sand grains is carried out rinsing 30-40min then; Vacuum drying 4h again removes depolarization free monomer and moisture, guarantee the epoxy resin sand grains with enough insulating properties are arranged after the High-Voltage Insulation cleaning agent mixes;
3. the High-Voltage Insulation cleaning agent is placed blender, make the epoxy resin sand grains of High-Voltage Insulation cleaning agent and solid fully be mixed into cleaning fluid;
4. liquor charging: adopt existing pneumatic type mixed liquor delivery pump with cleaning fluid by extracting out in the blender, and deliver to spray gun through woven hose;
5. air compression is carried: when cleaning fluid was delivered to spray gun, air was that the air compressor of 0.8Mpa is delivered to spray gun through tracheae by outlet pressure after the air filter filtering;
6. gas-liquid mixed is cleaned insulator; Adopting the spray gun of existing round nozzle that gas and cleaning fluid are got in the nozzle chamber of spray gun simultaneously mixes; Under the double action of infusion pump and air compressor; Speed with 100m/s sprays to high-tension insulator, cleans from bottom to top 2-3 time, can realize the cleaning to high-tension insulator.
Described High-Voltage Insulation cleaning agent in practical implementation can be by weight percent meter: solvent naphtha 45%, lightweight solvent naphtha 9%, No. 25 transformer oil 45% and bleeding agent 1% mix to be processed;
Described High-Voltage Insulation cleaning agent in practical implementation also can be by weight percent meter: solvent naphtha 48%, lightweight solvent naphtha 10%, No. 25 transformer oil 40.5% and bleeding agent 1.5% mix to be processed;
Described High-Voltage Insulation cleaning agent in practical implementation also can be by weight percent meter: solvent naphtha 42%, lightweight solvent naphtha 8%, No. 25 transformer oil 49.5% and bleeding agent 0.5% mix to be processed.
Of the present invention
GasThe insulation of liquid mixing sandblast electrification in high voltage is cleaned the method for insulator through on probation and test; Because the mode that has adopted the liquid blasting that contains solid particle and High-Voltage Insulation cleaning agent to combine; The speed of cleaning fluid is up to more than the 100m/s; Solid particle in the cleaning fluid plays the effect of strong dirt-removing, and cleaning agent not only plays the effect of insulation protection but also the purpose that prevents to produce dust pollution is arranged, and has following advantage with original compared with techniques:
1. livewire work need not the restriction that has a power failure, as long as weather condition allows to carry out operation at any time.
2. dirt-removing power is strong; Clean thoroughly: mix drop and have higher initial velocity; Strong wallop can wash the surface that insulator is given in the most obstinate filthy material and don't damage, and practiced thrift apparatus maintenance expense more than the twice service life that has prolonged insulator.
3. construction operation safety: clean the dielectric strength and the air similar (breakdown voltage is not less than 30KV, and measured value is 44KV) of mixed liquor, guaranteed operating personnel's construction safety.
4. clean and adopt single rifle Job Operations simple, labour intensity is low, and cleaning efficiency is high, and operating efficiency improves more than five times.
5. equipment is simple, and wide application can be effective to the several work environment, both can clean converting equipment, can clean transmission facility again, and indoor and outdoor all can be used, and huge economic and social benefit is arranged.
Claims (4)
1. one kind
GasThe method that insulator is cleaned in the insulation of liquid mixing sandblast electrification in high voltage is characterized in that, is realized by following steps:
(1) preparation High-Voltage Insulation cleaning agent, this cleaning agent are by weight percent meter: solvent naphtha 40-50%, lightweight solvent naphtha 7-11%, No. 25 transformer oil 40-50% and bleeding agent 0.5-1.5% mix and process; Described lightweight solvent naphtha is 200# solvent naphtha or 400# solvent naphtha; Described bleeding agent is a kind of of methyl pyrrolidone, sulfonated oil, Nekal BX or soap;
(2) preparation cleaning fluid; The epoxy resin sand of above-mentioned High-Voltage Insulation cleaning agent and solid mixed with weight ratio 40:1 process, described epoxy resin sand is to be pulverized by epoxy resin, crosses 100 mesh sieves; With deionized water the epoxy resin sand grains is carried out rinsing 30-40min then; Vacuum drying 4h again removes depolarization free monomer and moisture, guarantee the epoxy resin sand grains with enough insulating properties are arranged after the High-Voltage Insulation cleaning agent mixes;
(3) the High-Voltage Insulation cleaning agent is placed blender, make the epoxy resin sand grains of High-Voltage Insulation cleaning agent and solid fully be mixed into cleaning fluid;
(4) liquor charging: adopt existing pneumatic type mixed liquor delivery pump with cleaning fluid by extracting out in the blender, and deliver to spray gun through woven hose;
(5) air compression is carried: when cleaning fluid was delivered to spray gun, air was that the air compressor of 0.8Mpa is delivered to spray gun through tracheae by outlet pressure after the air filter filtering;
(6) gas-liquid mixed is cleaned insulator; Adopting the spray gun of existing round nozzle that gas and cleaning fluid are got in the nozzle chamber of spray gun simultaneously mixes; Under the double action of mixed liquor delivery pump and air compressor; Speed with 100m/s sprays to high-tension insulator, cleans from bottom to top 2-3 time, can realize the cleaning to high-tension insulator.
2. according to claim 1
GasThe method that insulator is cleaned in the insulation of liquid mixing sandblast electrification in high voltage; It is characterized in that what described High-Voltage Insulation cleaning agent can be by weight percent meter in practical implementation: solvent naphtha 45%, lightweight solvent naphtha 9%, No. 25 transformer oil 45% and bleeding agent 1% mix to be processed.
3. according to claim 1
GasThe method that insulator is cleaned in the insulation of liquid mixing sandblast electrification in high voltage; It is characterized in that what described High-Voltage Insulation cleaning agent also can be by weight percent meter in practical implementation: solvent naphtha 48%, lightweight solvent naphtha 10%, No. 25 transformer oil 40.5% and bleeding agent 1.5% mix to be processed.
4. according to claim 1
GasThe method that insulator is cleaned in the insulation of liquid mixing sandblast electrification in high voltage; It is characterized in that what described High-Voltage Insulation cleaning agent also can be by weight percent meter in practical implementation: solvent naphtha 42%, lightweight solvent naphtha 8%, No. 25 transformer oil 49.5% and bleeding agent 0.5% mix to be processed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110193511 CN102266858B (en) | 2011-07-12 | 2011-07-12 | Gas-liquid mixed sandblasting insulation method for cleaning high-voltage electrified insulator |
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| CN 201110193511 CN102266858B (en) | 2011-07-12 | 2011-07-12 | Gas-liquid mixed sandblasting insulation method for cleaning high-voltage electrified insulator |
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| CN102266858A CN102266858A (en) | 2011-12-07 |
| CN102266858B true CN102266858B (en) | 2012-12-19 |
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Families Citing this family (11)
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| CN102671879B (en) * | 2012-05-16 | 2014-11-05 | 西安交通大学 | Method for live cleaning of contaminated insulator with high-temperature water vapor doped with alkanolamide |
| CN103071645A (en) * | 2012-12-26 | 2013-05-01 | 苏州金纳信息技术有限公司 | Device for cleaning pneumatic transmission lines and communication lines |
| CN103071635B (en) * | 2013-01-14 | 2014-11-19 | 黑龙江电力职工大学 | Method for cleaning transformer cooler through spraying and hot-line water washing |
| CN104353632B (en) * | 2014-11-07 | 2017-01-18 | 河南恒安电力股份有限公司 | Gas-liquid mixing high-pressure washer |
| CN104475400B (en) * | 2014-11-26 | 2016-09-21 | 国网河南安阳县供电公司 | A kind of insulator sand washing production line |
| CN105038506A (en) * | 2015-08-03 | 2015-11-11 | 芜湖真空科技有限公司 | Cleaning agent for LOW-E glass and preparation method and application of cleaning agent |
| CN105296244A (en) * | 2015-11-17 | 2016-02-03 | 杨超 | Insulator electrified cleaning agent |
| CN106424012A (en) * | 2016-09-18 | 2017-02-22 | 国网河南伊川县供电公司 | Electrified cleaning device and method for secondary power supply system for power substation |
| CN110091257A (en) * | 2019-05-05 | 2019-08-06 | 常州世竟液态金属有限公司 | A kind of zirconium-base amorphous alloy surface sand-blasting technique |
| CN114523666A (en) * | 2022-03-18 | 2022-05-24 | 爱司凯科技股份有限公司 | Washing and scraping separated type 3D printing equipment printing nozzle cleaning mechanism |
| CN115041381A (en) * | 2022-07-07 | 2022-09-13 | 河南恒安电力股份有限公司 | Spraying device and spraying process for nano repairing agent of anti-pollution flashover coating of insulator |
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| US3625763A (en) * | 1968-12-04 | 1971-12-07 | Bunker Ramo | Conformal coating stripping method and composition |
| CN1071197A (en) * | 1991-09-20 | 1993-04-21 | 薛志纯 | Cleaning agent |
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Owner name: HENAN HENG'AN ELECTRIC POWER CO., LTD. Free format text: FORMER NAME: HENAN HENG'AN ELECTRIC POWER TECHNOLOGY INDUSTRIAL CO., LTD. |
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Address after: 450001 No. 96, Ruida Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee after: HENAN HENG'AN ELECTRIC POWER Co.,Ltd. Address before: 450001 No. 96, Ruida Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee before: Henan Heng'an Electric Power Technology Industrial Co.,Ltd. |
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Application publication date: 20111207 Assignee: HENAN HENGAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Assignor: HENAN HENG'AN ELECTRIC POWER Co.,Ltd. Contract record no.: X2023980035578 Denomination of invention: Method for Cleaning Insulators with High Voltage Live Insulation by Gas-liquid Mixed Sandblasting Granted publication date: 20121219 License type: Common License Record date: 20230516 |