CN112175699A - Fluorinated liquid composition and application thereof in transformer - Google Patents
Fluorinated liquid composition and application thereof in transformer Download PDFInfo
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- CN112175699A CN112175699A CN202011049136.3A CN202011049136A CN112175699A CN 112175699 A CN112175699 A CN 112175699A CN 202011049136 A CN202011049136 A CN 202011049136A CN 112175699 A CN112175699 A CN 112175699A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/06—Perfluorinated compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/06—Perfluorinated compounds
- C10M2211/063—Perfluorinated compounds used as base material
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
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- Organic Insulating Materials (AREA)
Abstract
The invention discloses a fluorinated liquid composition and application thereof in a transformer, wherein the fluorinated liquid composition is hexafluoropropylene dimer, hexafluoropropylene trimer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoropentane, perfluorohexane, perfluorotripropylamine, perfluorotributylamine, perfluorotripentylamine, perfluoro-N-methylmorpholine, perfluorocyclic ether, perfluoropropyl methyl ether, perfluorobutyl ethyl ether, perfluoro-2-methylpentane-3-methoxy ether, perfluoro-2-methylhexane-3-ethoxy ether, C8Any four of the cyclic ether mixtures, individually designated as firstA component, a second component, a third component, and a fourth component. Compared with the traditional transformer oil, the fluorinated liquid composition has the advantages of better fluidity, thermal conductivity, heat dissipation, insulativity, high boiling point, low freezing point, low density and the like, is applied to a transformer due to the advantages of environmental friendliness, oxidation resistance, low acid value and the like, reduces the defects of the medium of the existing transformer, and prolongs the service life of the transformer.
Description
Technical Field
The invention relates to the technical field of transformer media, in particular to a fluorinated liquid composition and application thereof in a transformer.
Background
The power transformer is the core equipment of power generation and transformation of industrial, mining and enterprise and power systems, whether the power transformer normally operates or not is related to the safety and economic benefits of enterprises, and the stable operation of national economy can be influenced or interfered by the occurrence of transformer equipment accidents. The transformer oil is used as a medium of a traditional transformer, is applied to transformer equipment, has good dielectric and heat conducting properties, has low freezing point and other excellent properties, and mainly plays roles in insulation, heat dissipation and arc extinction. However, the transformer oil is generally obtained from mineral oil or petroleum, and the defects of combustibility, easy aging, serious environmental pollution and the like are increasingly highlighted. The flash point of the transformer oil is 135 ℃, the burning point is 170 ℃, and the flammability of the transformer oil brings hidden troubles to the safe operation of the transformer. Moreover, the transformer oil is in a heating and oxidizing environment for a long time, so that the aging phenomenon is inevitable. The aging and decomposition of oil products can generate a large amount of organic acid, the increase of the acid value can improve the conductivity of the transformer oil and reduce the insulating property of the oil products, thereby causing the deterioration of the dielectric property of the oil, the aggravation of the metal catalysis in the oil, the multiplication of microorganisms and the reduction of the service life of the transformer.
In recent years, different transformer media have been brought to the market in order to solve the drawbacks of transformer oils, such as SF6、SF6/N2Mixed gas medium, and insoluble oil such as alpha oil, beta oil, and gamma oil. Although the gas medium is beneficial to the development of the transformer towards high voltage and large capacity, the insoluble oil has the advantages of no flash point, no ignition point and the like, the gas medium generally has the heat dissipation problem, and the insoluble oil such as alpha oil, beta oil, gamma oil and the like has the defects of high viscosity, poor fluidity, poor heat dissipation capability and the like, and is an important influence factor for preventing the insoluble oil from being put into the market on a large scale. Therefore, developing a novel insulating medium with low viscosity, good fluidity and strong heat dissipation capability is an important research direction for solving the problem of large defects of the traditional transformer oil at present.
Disclosure of Invention
In order to solve the problems of the traditional transformer oil, the invention aims to provide a fluorinated liquid composition and application thereof in a transformer.
The fluorinated liquid composition is characterized in that the composition is hexafluoropropylene dimer, hexafluoropropylene trimer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoropentane, perfluorohexane, perfluorotripropylamine, perfluorotributylamine, perfluorotripentylamine, perfluoro-N-methylmorpholine, perfluorocyclic ether, perfluoropropyl methyl ether, perfluorobutyl ethyl ether, perfluoro-2-methylpentane-3-methoxy ether, perfluoro-2-methylhexane-3-ethoxy ether, C8Any four of the cyclic ether mixtures are identified as the first component, the second component, the third component, and the fourth component, respectively.
The fluorinated liquid composition is characterized in that after component conditions are optimized and screened, the first component is any one of hexafluoropropylene dimer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoropentane or perfluorohexane, preferably hexafluoropropylene dimer or perfluorooctane; the second component is hexafluoropropylene trimer, C8Any one of cyclic ether mixture or perfluoro-N-methylmorpholine, preferably hexafluoropropylene trimer or C8A mixture of cyclic ethers; the third component is any one of perfluoro tripropylamine, perfluoro tributylamine or perfluoro tripentylamine; the fourth component is any one of perfluor cyclic ether, perfluor propyl methyl ether, perfluor butyl ethyl ether, perfluor-2-methyl pentane-3-methoxy ether or perfluor-2-methyl hexane-3-ethoxy ether.
The fluorinated liquid composition is characterized in that the structure of hexafluoropropylene trimer is any one of the following two structures:
the structure of the hexafluoropropylene dimer is any one of the following two structures:
C8the main structure of the cyclic ether mixture is:
simultaneously, the compounding method of the novel fluoridized liquid composition comprises the following steps:
s1, screening physical and chemical properties of different fluorides, and selecting a substance of a first component to be any one of hexafluoropropylene dimer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoropentane or perfluorohexane.
S2, screening physical and chemical properties of different fluorides, and selecting substances of a second component as hexafluoropropylene tripolymer and C8Any one of cyclic ether mixture or perfluoro-N-methylmorpholine.
S3, screening by physicochemical properties of different fluorides, and selecting a substance of the third component as any one of perfluoro tripropylamine, perfluoro tributylamine or perfluoro tripentylamine.
S4, screening physical and chemical properties of different fluorides, and selecting a substance of the fourth component to be any one of perfluoro cyclic ether, perfluoro propyl methyl ether, perfluoro butyl ethyl ether, perfluoro-2-methylpentane-3-methoxy ether or perfluoro-2-methylhexane-3-ethoxy ether.
And S5, mixing and stirring the four components according to a proper mass ratio to obtain a plurality of groups of target fluorinated liquid compositions.
The fluorinated liquid composition is characterized in that the content of a first component is 5-10%, the content of a second component is 20-30%, the content of a third component is 50-60%, and the content of a fourth component is 5-10% by mass of the total amount of the fluorinated liquid composition being 100%.
The fluorination liquid composition is characterized in that the four components are physically mixed according to the mass ratio and uniformly stirred at normal temperature to obtain the target fluorination liquid composition.
And mixing the fluorides of each component according to an optimal mass ratio to obtain a plurality of groups of fluorinated liquid compositions, measuring the physicochemical property of each group of compositions, and comparing the measured physicochemical property with the parameters of the traditional transformer oil to obtain a plurality of groups of novel fluorinated liquid compositions more suitable for transformer media.
The application of the fluorinated liquid composition in the transformer is characterized in that the fluorinated liquid composition is applied to the transformer as a transformer medium instead of transformer oil.
The fluorinated liquid is used as a novel environment-friendly material, and can be used as a novel transformer medium to replace a transformer medium with large defects such as a traditional transformer oil and the like due to the properties of good fluidity, thermal conductivity, heat dissipation, insulativity, high boiling point, low freezing point, low density and the like, and is applied to the normal use of the transformer.
Compared with the prior art, the beneficial effect of this scheme is as follows:
1. the medium formula of the transformer is four fluorides, and after the medium is compounded into a composition, the density is low, so that the medium is beneficial to the precipitation of impurities.
2. The novel fluorinated liquid composition has lower viscosity and better fluidity compared with transformer oil. High heat conductivity coefficient and strong heat dissipation capability.
3. Compared with transformer oil, the novel fluorinated liquid composition has the advantages of high flash point and non-flammability, so that the transformer is safer to use.
4. The novel fluoridized liquid composition has the advantages of good insulating property, low oxidation degree, difficult aging and capability of prolonging the service life of a transformer.
The novel fluorizated liquid composition has wide application range, can not be solidified and vaporized in the environment of-50-120 ℃, and can keep good performance.
Detailed Description
The present invention is further illustrated by the following examples, which should not be construed as limiting the scope of the invention.
Example (b):
fluoropolymers and perfluoro compounds have been widely used in various fields in recent years because of their excellent physicochemical properties. The basic properties of the fluorochemical used in the present invention were first determined and, as shown in table 1, there is an important reference to aid in the selection of the fluoride for subsequent compounding.
TABLE 1 basic parameters of the component materials of the novel fluorinated liquid compositions
Except for the basic properties of the fluoride determined in the table 1, the hexafluoropropylene dimer and the hexafluoropropylene trimer which are obtained through research are both low toxic substances with stable properties, have low viscosity, good fluidity and heat conduction and heat dissipation capacity, are combined with the unique advantages of low dielectric constant, nonflammability, environmental friendliness and the like, and are suitable to be used as one of the components of the fluorinated liquid composition to be applied to the transformer. The fluoride compounds were selectively combined in combination with their different properties and parameters, and the combination of the fluoride liquid compositions is shown in table 2.
TABLE 2 novel fluorinated liquid composition combinations
The combinations in table 2 are all taken as examples and are sequentially marked as examples 1-15, the fluorinated liquid compositions obtained after mixing each component with different mass ratios are subjected to property and mass detection, and the optimal mass ratio of the four components is determined according to the results of the property and mass detection. The optimum mass ratio of the fluorinated liquid composition and the comparison are shown in table 3.
TABLE 3 best quality ratio of examples and comparative examples
The fluorinated liquid composition prepared under the condition of the optimal mass ratio is subjected to property test and quality detection and is compared with a quality index and a comparative transformer oil, and the results are shown in tables 4-1, 4-2, 5-1, 5-2, 6-1, 6-2, 7-1, 7-2, 8-1 and 8-2.
Table 4-1 comparison of properties and quality testing of fluorinated liquid compositions of examples 1-3 with comparative transformer oils
Tables 4-2 comparison of corrosion performance of fluorinated liquid compositions of examples 1-3 with comparative transformer oil
Table 5-1 comparison of properties and quality testing of fluorinated liquid compositions of examples 4-6 with comparative transformer oils
Tables 5-2 comparison of corrosion Performance of fluorinated liquid compositions of examples 4-6 with comparative transformer oils
Table 6-1 comparison of properties and quality testing of fluorinated liquid compositions of examples 7-9 with comparative transformer oils
Table 6-2 comparison of corrosion performance of fluorinated liquid compositions of examples 7-9 with comparative transformer oil
Table 7-1 comparison of properties and quality testing of fluorinated liquid compositions of examples 10-12 with comparative transformer oils
Table 7-2 comparison of corrosion performance of fluorinated liquid compositions of examples 10-12 with comparative transformer oil
Table 8-1 comparison of properties and quality testing of fluorinated liquid compositions of examples 13-15 with comparative transformer oils
Table 8-2 comparison of corrosion performance of fluorinated liquid compositions of examples 13-15 with comparative transformer oil
As can be seen from tables 4-1, 4-2, 5-1, 5-2, 6-1, 6-2, 7-1, 7-2, 8-1 and 8-2, the fluorinated liquid compositions of examples 1-15 all exhibited good physicochemical properties and all reached the quality index of the transformer media. Compared with the conventional transformer oil of the comparative example, the examples 1 to 15 can replace the transformer oil as the transformer medium to be applied to the transformer due to good physical properties such as low viscosity, high boiling point, high insulation and the like, and good chemical properties such as less corrosion to metal materials and non-metal materials in the transformer.
The statements in this specification merely set forth a list of implementations of the inventive concept and the scope of the present invention should not be construed as limited to the particular forms set forth in the examples.
Claims (6)
1. A fluorinated liquid composition characterized in that said composition is hexafluoropropylene dimer, hexafluoropropylene trimer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoropentane, perfluorohexane, perfluorotripropylamine, perfluorotributylamine, perfluorotripentylamine, perfluoro-N-methylmorpholine, perfluorocyclic ether, perfluoropropyl methyl ether, perfluorobutyl ethyl ether, perfluoro-2-methylpentane-3-methoxy ether, perfluoro-2-methylhexane-3-ethoxy ether, C8Any four of the cyclic ether mixtures are identified as the first component, the second component, the third component, and the fourth component, respectively.
2. A fluorinated liquid composition according to claim 1, wherein the first component is any one of hexafluoropropylene dimer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoropentane or perfluorohexane, preferably hexafluoropropylene dimer or perfluorooctane; the second component is hexafluoropropylene trimer, C8Any one of cyclic ether mixture or perfluoro-N-methylmorpholine, preferably hexafluoropropylene trimer or C8A mixture of cyclic ethers; the third component is any one of perfluoro tripropylamine, perfluoro tributylamine or perfluoro tripentylamine; the fourth component is any one of perfluor cyclic ether, perfluor propyl methyl ether, perfluor butyl ethyl ether, perfluor-2-methyl pentane-3-methoxy ether or perfluor-2-methyl hexane-3-ethoxy ether.
3. A fluorinated liquid composition according to claim 2, wherein the hexafluoropropylene trimer has a structure of any one of the following two structures:
the structure of the hexafluoropropylene dimer is any one of the following two structures:
C8the main structure of the cyclic ether mixture is:
4. a fluorinated liquid composition according to claim 2, wherein the content of the first component is 5% to 10%, the content of the second component is 20% to 30%, the content of the third component is 50% to 60%, and the content of the fourth component is 5% to 10% based on 100% by mass of the total amount of the fluorinated liquid composition.
5. The fluorination liquid composition as claimed in claim 4, wherein the four components are physically mixed according to the mass ratio and uniformly stirred at normal temperature to obtain the target fluorination liquid composition.
6. Use of the fluorinated liquid composition according to claim 1 in a transformer, wherein the fluorinated liquid composition is used as a transformer medium in place of transformer oil in a transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011049136.3A CN112175699A (en) | 2020-09-29 | 2020-09-29 | Fluorinated liquid composition and application thereof in transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011049136.3A CN112175699A (en) | 2020-09-29 | 2020-09-29 | Fluorinated liquid composition and application thereof in transformer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265231A (en) * | 2021-03-09 | 2021-08-17 | 南京微米电子产业研究院有限公司 | Preparation method of nano-diamond fluorinated liquid fluid |
| CN113308290A (en) * | 2021-05-25 | 2021-08-27 | 清华大学 | Flame-retardant transformer oil and preparation method thereof |
| CN113717699A (en) * | 2021-07-15 | 2021-11-30 | 浙江巨化技术中心有限公司 | Composition, silicon-containing liquid coolant, preparation method of silicon-containing liquid coolant and immersion cooling system |
| CN113773812A (en) * | 2021-09-13 | 2021-12-10 | 浙江巨化技术中心有限公司 | Composition containing heterocyclic accelerator, application of composition to liquid refrigerant and immersed liquid cooling system |
| CN113861949A (en) * | 2021-10-12 | 2021-12-31 | 浙江巨化技术中心有限公司 | Heat transfer composition, application thereof and immersion cooling system |
| CN113969144A (en) * | 2021-10-12 | 2022-01-25 | 浙江巨化技术中心有限公司 | Composition, application of composition to liquid refrigerant and liquid cooling system |
| CN114539986A (en) * | 2022-02-15 | 2022-05-27 | 浙江诺亚氟化工有限公司 | Application of composition containing perfluoroether compound as heat transfer medium |
| CN115449353A (en) * | 2021-06-08 | 2022-12-09 | 浙江省化工研究院有限公司 | Liquid cooling medium and application thereof |
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| CN107430925A (en) * | 2014-12-12 | 2017-12-01 | Abb瑞士股份有限公司 | Gas-insulating type electrical equipment, particularly gas-insulating type transformer or reactor |
| CN111647391A (en) * | 2020-07-15 | 2020-09-11 | 浙江诺亚氟化工有限公司 | Multi-effect organic cooling liquid composition and application thereof |
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| TW201134803A (en) * | 2010-01-25 | 2011-10-16 | 3M Innovative Properties Co | Perfluoroketones as gaseous dielectrics |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265231A (en) * | 2021-03-09 | 2021-08-17 | 南京微米电子产业研究院有限公司 | Preparation method of nano-diamond fluorinated liquid fluid |
| CN113308290A (en) * | 2021-05-25 | 2021-08-27 | 清华大学 | Flame-retardant transformer oil and preparation method thereof |
| CN115449353A (en) * | 2021-06-08 | 2022-12-09 | 浙江省化工研究院有限公司 | Liquid cooling medium and application thereof |
| CN113717699A (en) * | 2021-07-15 | 2021-11-30 | 浙江巨化技术中心有限公司 | Composition, silicon-containing liquid coolant, preparation method of silicon-containing liquid coolant and immersion cooling system |
| CN113773812A (en) * | 2021-09-13 | 2021-12-10 | 浙江巨化技术中心有限公司 | Composition containing heterocyclic accelerator, application of composition to liquid refrigerant and immersed liquid cooling system |
| CN113861949A (en) * | 2021-10-12 | 2021-12-31 | 浙江巨化技术中心有限公司 | Heat transfer composition, application thereof and immersion cooling system |
| CN113969144A (en) * | 2021-10-12 | 2022-01-25 | 浙江巨化技术中心有限公司 | Composition, application of composition to liquid refrigerant and liquid cooling system |
| CN113861949B (en) * | 2021-10-12 | 2023-08-15 | 浙江巨化技术中心有限公司 | Heat transfer composition, application thereof and immersed cooling system |
| CN114539986A (en) * | 2022-02-15 | 2022-05-27 | 浙江诺亚氟化工有限公司 | Application of composition containing perfluoroether compound as heat transfer medium |
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