CN107574041B - Cleaning agent for online maintenance of high-low voltage distribution equipment - Google Patents
Cleaning agent for online maintenance of high-low voltage distribution equipment Download PDFInfo
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- CN107574041B CN107574041B CN201710183041.2A CN201710183041A CN107574041B CN 107574041 B CN107574041 B CN 107574041B CN 201710183041 A CN201710183041 A CN 201710183041A CN 107574041 B CN107574041 B CN 107574041B
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Abstract
The invention provides a cleaning agent for online maintenance of high-voltage and low-voltage power distribution equipment, which is characterized by comprising the following components in parts by weight: comprises polyamino acid polyethylene glycol polyester with the mass percentage concentration of 1-50%. The cleaning agent provided by the invention can clean and decontaminate high-low voltage distribution equipment and prevent the corrosion of pollutants.
Description
Technical Field
The invention relates to the field of cleaning agents, in particular to a cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment.
Background
The power equipment which runs for a long time, in particular, high-voltage and low-voltage power distribution equipment which runs on line and the like, is influenced by environmental factors such as industrial emissions, moisture, oxidation, corrosive gas, natural dust and the like in the air environment, and the surfaces of the power equipment cannot avoid adhering solid, liquid and gas dirt particles, and generally have certain conductivity and hygroscopicity.
In dry weather conditions, such devices with dirt on their surfaces may still maintain a high level of insulation. However, when the insulator is exposed to humid weather such as fog, dew, rain, frost, ice melt, snow melt and the like, the surface of the insulator can form a conductive water film due to the fact that the salt and the alkali in the dirt layer are dissolved in water, and therefore leakage current can flow along the surface of the insulator.
Because of the influence of various equipment shapes, structure sizes and other factors, the current density of each part on the surface of each equipment is different, a drying belt is firstly formed at a part with larger current, the drying belt bears higher voltage, and when the electric field intensity is large enough, the current discharges along the surface of a crossing drying area to generate local electric arcs. When the dirty and wet states are serious, the local electric arc reaches or exceeds the critical state, the electric arc penetrates through the two electrodes, flashover, namely pollution flashover, occurs, and power failure accidents are caused.
The surface of the charged equipment is polluted, the polluted equipment surface is wetted and the voltage is three necessary conditions for the occurrence of pollution flashover, so that the aim of preventing pollution flashover can be fulfilled by taking a countermeasure against any factor.
Along with the rapid development of national economy, the capacity and rated output voltage level of a power grid are greatly improved, meanwhile, along with the development of industry and agriculture, the environmental pollution of parts of regions is getting more and more serious, and the harm and economic loss caused by pollution flashover accidents of electrified equipment are getting more and more serious.
The main measures taken by the power department for many years are: applying anti-fouling flashover coatings such as: RTV coating, insulation strengthening, power failure cleaning, etc., but these methods are inefficient, have poor cleaning effect, and are prone to cause human accidents, etc.
Electrified washing can effectively get rid of the deep filth in insulator surface, eliminates the emergence of high voltage insulator accident, however, the insulating cleaner who uses on the market at present, on the one hand because the cleaning performance of cleaner itself is not good, causes a large amount of solvents extravagant, has promoted the cleaning cost greatly. On the other hand, the currently developed cleaning agent is often corrosive to materials such as certain plastic components and silicone rubber components. Moreover, because the cleaning agent is usually slow in volatilization, if the cleaning agent is sprayed on the cleaned equipment or components and parts, if the volatility is low, the components and parts of the cleaned equipment, particularly plastic and silicon rubber components and parts, must be corroded, and charged ions, acid, alkali, salt and the like on the components and parts of the cleaned equipment are not thoroughly removed, so that the cleaning quality is influenced.
Disclosure of Invention
The invention aims to overcome the defects and provides the cleaning agent for the online maintenance of the high-low voltage power distribution equipment, which can clean and decontaminate the high-low voltage power distribution equipment, prevent the corrosion of pollutants, has the characteristics of good volatility, no residue, no color, no odor, no combustion, no electricity conduction, no corrosion, no toxicity, no ODS (ozone depleting substance) and the like.
The invention provides a cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment, which is characterized in that: comprises polyamino acid polyethylene glycol polyester with the mass percentage concentration of 1-50%.
Furthermore, the cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment provided by the invention also has the characteristics that: the composite material is prepared from the following substances in parts by mass:
furthermore, the cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment provided by the invention also has the characteristics that: namely, the polyamino acid polyethylene glycol polyester is prepared by mixing polyamino acid, polyethylene glycol and polybasic acid;
wherein the mass ratio of the polyamino acid to the polyethylene glycol to the polybasic acid is as follows: 1:0.8-0.9:1.1-1.5.
Furthermore, the cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment provided by the invention also has the characteristics that: namely, the preparation method of the polyamino acid polyethylene glycol polyester is as follows:
step one, under the condition of protecting gas, putting a molecular sieve (which can be not added, if the addition amount of the molecular sieve is 2-10% of the total mass of all raw materials), polybasic acid and half of polyethylene glycol into an autoclave in sequence, and stirring for 20-30 minutes at the temperature of 40-65 ℃;
adding the rest polyethylene glycol and polyamino acid, and simultaneously adding a catalytic amount of concentrated sulfuric acid;
step three, after all the raw materials are added, heating to 80-105 ℃, and carrying out high-pressure reaction for 1-5 hours;
and step four, filtering insoluble substances at high temperature, and cooling to room temperature to obtain the polyamino acid polyethylene glycol polyester.
The polyamino acid polyethylene glycol polyester is actually a mixture of any two or three compounds among polyamino acid, polyethylene glycol and polybasic acid.
Furthermore, the cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment provided by the invention also has the characteristics that: namely, the polyamino acid is selected from one or more of polylysine, polyaspartic acid and polyaspartic acid;
the polyethylene glycol is selected from polyethylene glycol with molecular weight not less than 100; preferably polyethylene glycol having a molecular weight in the range of 100-1000;
the polybasic acid is selected from dibasic or tribasic acid with carbon number not more than 16. Preferred are oxalic acid, malonic acid, dodecanedioic acid, tartaric acid, malic acid, citric acid, and the like.
Furthermore, the cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment provided by the invention also has the characteristics that: namely, the halogenated hydrocarbon is one or more selected from saturated or unsaturated halogenated aliphatic hydrocarbons with the carbon number not more than 10.
Preferably as follows: dichloropentafluoropropane, trichloroethane, dichloromonofluoroethane, trichloroethylene, tetrachloroethylene, dichloromethane and the like.
Furthermore, the cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment provided by the invention also has the characteristics that: that is, the above alcohols are selected from one or more of monohydric alcohol and dihydric alcohol with boiling point lower than 120 ℃ and carbon atom number not more than 5.
Furthermore, the cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment provided by the invention also has the characteristics that: that is, the aliphatic hydrocarbon is one or more selected from saturated or unsaturated aliphatic hydrocarbons having not more than 8 carbon atoms.
Furthermore, the cleaning agent for online maintenance of high-voltage and low-voltage distribution equipment provided by the invention also has the characteristics that: namely, the polydimethylsiloxane is one or more selected from polydimethylsiloxane with the viscosity of less than 5000 at 25 ℃.
In addition, the invention also provides a preparation method of the cleaning agent for online maintenance of high-low voltage distribution equipment, which is characterized by comprising the following steps:
uniformly mixing halogenated hydrocarbon, alcohols and polydimethylsiloxane to form a first reagent;
uniformly mixing aliphatic hydrocarbon and polyamino acid polyethylene glycol polyester to form a reagent II;
and slowly mixing the second reagent into the first reagent at the temperature of 20-60 ℃ to form a transparent mixed solution, namely the cleaning agent.
The invention has the following functions and effects:
the cleaning agent for online maintenance of the high-voltage and low-voltage power distribution equipment, which can clean and decontaminate the high-voltage and low-voltage power distribution equipment, prevent the corrosion of pollutants, has the characteristics of good volatility, no residue, no color, no odor, no combustion, no electricity conduction, no corrosion, no toxicity, no ODS (ozone depleting substance) and the like, is manufactured.
In the invention, the selected polyamino acid polyethylene glycol polyester has an amide structure of polyamino acid, a polyether structure of polyethylene glycol and an ester chain structure formed by mutual reaction or reaction with polybasic acid due to the structural characteristics of the polyamino acid polyethylene glycol polyester, so that the compound has multiple functional groups and functions. And the component has biodegradable properties.
Due to the presence of such functional groups, the compatibility between the components is improved when the compound is used in the system of the present invention. Based on various groups on the long carbon chain of the polyamino acid polyethylene glycol polyester, the formula group of the invention can play a role in connection, namely, the polyamino acid polyethylene glycol polyester is taken as a link through weak bond effects such as hydrogen bonds, covalent bonds and the like, so that the phase fusibility among all components is improved. In addition, the surface active factors are connected in series among the components, so that the cleaning efficiency of the components is improved, experiments show that the cleaning agent disclosed by the invention can realize high-efficiency cleaning capability, and the using amount of the cleaning agent is 10-20% of that of the traditional online cleaning agent on the premise of obtaining the same cleaning effect.
In addition, due to the net surface effect generated by the coupling effect, after cleaning is finished, namely after the cleaning solution adsorbing or wrapping pollutants finishes the decontamination function, a protective film can be formed on the surface of the charged equipment to effectively prevent the pollutants from being accumulated and formed on the surface of the equipment again, and experiments show that the time for the charged equipment using the cleaning agent to reach 5% of the surface area and be polluted is more than 5 times of that of the commercially available cleaning agent.
Detailed Description
Example I cleaning agent No. 1 for on-line maintenance of high-low voltage distribution equipment
The feed additive is prepared from the following substances in parts by mass:
| trichloropropane | 63 parts of a mixture; |
| ethanol | 21 parts of (1); |
| n-hexane | 17 parts of (1); |
| PMX-200 | 2 parts of (1); |
| polyamino acid polyethylene glycol polyester 1# | 5 parts of the raw materials. |
The preparation method of the polyamino acid polyethylene glycol polyester 1# is as follows:
step one, under the condition of protecting gas, sequentially putting 200g of molecular sieve, 500g of oxalic acid and 500g of polyethylene glycol 400 into a high-pressure kettle, and stirring at 65 ℃ for 20 minutes until all raw materials are uniformly mixed;
step two, adding 500g of polyethylene glycol and 600g of polyaspartic acid, and slowly dripping 45g of 98% concentrated sulfuric acid;
and step three, after all the raw materials are added, heating to 85 ℃ at the speed of 5 ℃/min, and carrying out high-pressure reaction 1.5 hours;
and step four, filtering insoluble substances at high temperature, and cooling to room temperature to obtain the polyamino acid polyethylene glycol polyester No. 1.
The preparation method of the cleaning agent 1# for the online maintenance of the high-low voltage distribution equipment comprises the following steps:
mixing trichloropropane, ethanol and PMX-200 according to the proportion in the table to form a reagent A; uniformly mixing n-hexane and polyamino acid polyethylene glycol polyester No. 1 according to the proportion in the table to form a reagent B;
and slowly mixing the reagent B into the reagent A at room temperature to form a transparent mixed solution, namely the cleaning agent 1# for online maintenance of high-low voltage distribution equipment, at an adding speed which is just good for quickly changing a system into a transparent phase.
The use amount is as follows:
the dosage of each square meter is 0.09-0.11kg of the cleaning agent 1# for the online maintenance of the high-low voltage distribution equipment.
Volatility and cleaning efficiency:
the volatile mass percentage of every 60 seconds is 92%, and the cleaning rate of pollutants reaches more than 98%.
Example two cleaning agent No. 2 for on-line maintenance of high-low voltage distribution equipment
The feed additive is prepared from the following substances in parts by mass:
| tetrachloroethylene | 55 parts of (1); |
| ethanol | 11 parts of (1); |
| dodecane | 21 parts of (1); |
| PMX-1000 | 6 parts of (1); |
| polyamino acid polyethylene glycol polyester 2# | And 2 parts. |
The preparation method of the polyamino acid polyethylene glycol polyester 1# is as follows:
step one, under the condition of protecting gas, sequentially putting 100g of tartaric acid and 40g of polyethylene glycol 200 into a high-pressure kettle, and stirring at the temperature of 80 ℃ for 20 minutes until all raw materials are uniformly mixed;
step two, adding 40g of polyethylene glycol and 100g of polylysine, and slowly dripping 5g of 98% concentrated sulfuric acid;
step three, after all the raw materials are added, heating to 105 ℃ at the speed of 5 ℃/min, and carrying out high-pressure reaction for 3 hours;
and step four, filtering insoluble substances at high temperature, and cooling to room temperature to obtain the polyamino acid polyethylene glycol polyester No. 2.
The preparation method of the cleaning agent 2# for the online maintenance of the high-low voltage distribution equipment comprises the following steps:
uniformly mixing tetrachloroethylene, ethanol and PMX-1000 according to the proportion in a table to form a reagent A; uniformly mixing dodecane and polyamino acid polyethylene glycol polyester 2# according to the proportion in the table to form a reagent B;
and slowly mixing the reagent B into the reagent A at the temperature of 60 ℃ at an adding speed which is just good for quickly changing a system into a transparent phase to form a transparent mixed solution, namely the cleaning agent 2# for online maintenance of high-low voltage distribution equipment.
The use amount is as follows:
the dosage of each square meter is 0.11-0.13kg of the cleaning agent 2# for the online maintenance of the high-low voltage distribution equipment.
Volatility and cleaning efficiency:
the volatile mass percentage of every 60 seconds is 93%, and the cleaning rate of pollutants reaches more than 98%.
EXAMPLE III cleaning agent No. 3 for on-line maintenance of high-low voltage distribution equipment
The feed additive is prepared from the following substances in parts by mass:
| tetrachloroethylene | 35 parts of (B); |
| dichloropentafluoropropane | 35 portions of |
| Propylene glycol | 16 parts of a mixture; |
| dodecane | 14 parts of (1); |
| PMX-200 | 2 parts of (1); |
| polyamino acid polyethylene glycol polyester 3# | 9 parts. |
The preparation method of the polyamino acid polyethylene glycol polyester 3# is as follows:
step one, under the condition of protecting gas, sequentially putting 200g of malic acid and 30g of polyethylene glycol 600 into an autoclave, and stirring at the temperature of 45 ℃ for 30 minutes until all raw materials are uniformly mixed;
step two, adding 30g of polyethylene glycol 600 and 250g of polylysine, and slowly dropwise adding 15g of 98% concentrated sulfuric acid;
step three, after all the raw materials are added, heating to 95 ℃ at the speed of 5 ℃/min, and carrying out high-pressure reaction for 2 hours;
and step four, filtering insoluble substances at high temperature, and cooling to room temperature to obtain the polyamino acid polyethylene glycol polyester No. 3.
The preparation method of the cleaning agent 2# for the online maintenance of the high-low voltage distribution equipment comprises the following steps:
uniformly mixing tetrachloroethylene, dichloropentafluoropropane, propylene glycol and PMX-200 according to the proportion in the table to form a reagent A; uniformly mixing dodecane and polyamino acid polyethylene glycol polyester No. 3 according to the proportion in the table to form a reagent B;
and slowly mixing the reagent B into the reagent A at the temperature of 30 ℃, and forming a transparent mixed solution at an adding speed which is just good for quickly changing a system into a transparent phase, namely the cleaning agent 3# for online maintenance of high-low voltage distribution equipment.
The use amount is as follows:
the dosage of each square meter is 0.15-0.17kg of the cleaning agent 2# for the online maintenance of the high-low voltage distribution equipment.
Volatility and cleaning efficiency:
the volatile mass percentage of every 60 seconds is 91%, and the cleaning rate of pollutants reaches more than 98%.
Claims (6)
1. The cleaning agent for the online maintenance of the high-low voltage distribution equipment is characterized by being prepared from the following substances in parts by mass:
the polyamino acid polyethylene glycol polyester is prepared by mixing polyamino acid, polyethylene glycol and polybasic acid;
wherein the mass ratio of the polyamino acid to the polyethylene glycol to the polybasic acid is as follows: 1:0.8-0.9: 1.1-1.5;
the preparation method of the polyamino acid polyethylene glycol polyester is as follows:
step one, under the condition of protecting gas, sequentially putting a molecular sieve, polybasic acid and half of polyethylene glycol into a high-pressure kettle, and stirring for 20-30 minutes at the temperature of 40-65 ℃;
adding the rest polyethylene glycol and polyamino acid, and simultaneously adding a catalytic amount of concentrated sulfuric acid;
step three, after all the raw materials are added, heating to 80-105 ℃, and carrying out high-pressure reaction for 1-5 hours;
step four, filtering insoluble substances at high temperature, and cooling to room temperature to obtain polyamino acid polyethylene glycol polyester;
uniformly mixing halogenated hydrocarbon, alcohols and polydimethylsiloxane to form a first reagent;
uniformly mixing aliphatic hydrocarbon and polyamino acid polyethylene glycol polyester to form a reagent II;
and slowly mixing the second reagent into the first reagent at the temperature of 20-60 ℃ to form a transparent mixed solution, namely the cleaning agent.
2. The cleaning agent for the online maintenance of high-low voltage distribution equipment as claimed in claim 1, wherein:
the polyamino acid is selected from one or more of polylysine and polyaspartic acid;
the polyethylene glycol is selected from polyethylene glycol with molecular weight not less than 100;
the polybasic acid is selected from binary or ternary acid with carbon number not more than 16.
3. The cleaning agent for the online maintenance of high-low voltage distribution equipment as claimed in claim 1, wherein:
the halogenated hydrocarbon is selected from one or more of saturated or unsaturated halogenated aliphatic hydrocarbons with the carbon number not more than 10.
4. The cleaning agent for the online maintenance of high-low voltage distribution equipment as claimed in claim 1, wherein:
the alcohols are selected from one or more of monohydric alcohols and dihydric alcohols with the boiling points lower than 120 ℃ and the carbon atom number not more than 5.
5. The cleaning agent for the online maintenance of high-low voltage distribution equipment as claimed in claim 1, wherein:
the aliphatic hydrocarbon is one or more of saturated or unsaturated aliphatic hydrocarbons with the carbon number not more than 8.
6. The cleaning agent for the online maintenance of high-low voltage distribution equipment as claimed in claim 1, wherein:
the polydimethylsiloxane is selected from one or more of polydimethylsiloxane with the viscosity of less than 5000 at 25 ℃.
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| CN201710183041.2A CN107574041B (en) | 2017-03-24 | 2017-03-24 | Cleaning agent for online maintenance of high-low voltage distribution equipment |
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| CN107574041B true CN107574041B (en) | 2020-12-22 |
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| CN105273869A (en) * | 2014-07-24 | 2016-01-27 | 滕州市智星电力电子工程有限公司 | Electrical equipment charged insulation cleaning agent and preparation method thereof |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419962A (en) * | 2015-12-12 | 2016-03-23 | 昆明理工大电力工程技术有限公司 | High pressure anti-pollution-flashover cleaner |
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- 2017-03-24 CN CN201710183041.2A patent/CN107574041B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613213A (en) * | 2013-12-17 | 2014-03-05 | 河南省科学院能源研究所有限公司 | Environment-friendly cooling circulating water system composite corrosion-inhibition antisludging agent and preparation method thereof |
| CN105273869A (en) * | 2014-07-24 | 2016-01-27 | 滕州市智星电力电子工程有限公司 | Electrical equipment charged insulation cleaning agent and preparation method thereof |
| CN105419975A (en) * | 2015-10-26 | 2016-03-23 | 国网山东海阳市供电公司 | Dustproof and antirust surface cleaning treatment agent for electric power facilities |
| CN106495294A (en) * | 2016-11-09 | 2017-03-15 | 河南省科学院能源研究所有限公司 | A kind of corrosion-mitigation scale-inhibition antibacterial and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 聚天冬氨酸功能高分子材料研究进展;余定华,曹辉,黄和;《生物加工过程》;20130331;第69-70页 * |
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