CN105296095A - Transformer oil with strong heat dissipating function - Google Patents

Abstract

The invention discloses transformer oil with a strong heat dissipating function. The transformer oil is prepared from, by weight, 4-5 parts of zinc acetylacetonate, 0.7-1 part of oleic acid, 20-24 parts of ethyl alcohol, 2-3 parts of polyimide, 0.2-0.4 part of ethylenediamine, 0.4-0.6 part of silane coupling agent KH570, 1000-1100 parts of transformer base oil, 2-3 parts of polyethyleneimine, 0.3-0.4 part of zinc stearate, 50-55 parts of soybean oil, 1-2 parts of nickel oxide, 3-4 parts of zirconium boride, 2-3 parts of ferrous titanate, 4-4.5 parts of antimony trioxide and 0.2-0.3 part of phenoxy methyl alcohol. The service life of the transformer is effectively prolonged, the danger coefficient is effectively reduced, quality is improved, the application prospect is enlarged, raw materials are wide in source, and the transformer oil is low in cost and worthy of popularization.

Description

The transformer oil that a kind of thermolysis is strong

Technical field

The present invention relates to industrial lubricant technical field, particularly relate to the transformer oil that a kind of thermolysis is strong.

Background technology

In recent years, occur in electric power accident both domestic and external people are recognized the safety of power system relates to the safety of entire society's economic life.In the process of power system power transmission and transformation, transformer is as the tie of delivery of electrical energy, and be one of equipment of most important and most critical in power equipment, its safe and stable operation is related to the steady running of whole electrical network.Operation transformer in systems in which, once there is major accident, not only can cause the autoclasia of equipment, also can interrupt the electric power supply of power network, causes tremendous influence to the production of society and life.Especially the voltage range along with power system is more and more higher, the progressively deterioration problem of the transformer insulated characteristic of long-time running in power system seems more outstanding, therefore, improve the insulation characterisitic that transformer runs, suppress aging of insulation in transformer, thus reduce that insulating fault become a reality in the urgent need to.Transformer oil is as dielectric most important in power transformer, and assume responsibility for the dual role of heat radiation and insulation, therefore, the heat dispersion and the insulating property that how to improve transformer oil receive more concern.Traditional transformer oil thermal conductivity is less, do not meet more and more higher radiating requirements, secondly more and more higher voltage range and miniaturization all require that dielectric must have higher insulation strength, based on this, in order to adapt to the developing direction of transformer Large Copacity, extra-high pressure grade and miniaturization, improve the insulation characterisitic of traditional transformer oil long-time running, research insulating property are higher, the better transformer oil of thermal ageing properties is extremely urgent.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, provides the transformer oil that a kind of thermolysis is strong.

The present invention is achieved by the following technical solutions:

The transformer oil that thermolysis is strong, is made up of the raw material of following weight part: zinc acetylacetonate 4-5, oleic acid 0.7-1, ethanol 20-24, polyimide 2-3, quadrol 0.2-0.4, silane coupling agent KH5700.4-0.6, transformer foundation oil 1000-1100, polymine 2-3, Zinic stearas 0.3-0.4, soybean oil 50-55, nickel oxide 1-2, zirconium boride 99.5004323A8ure 3-4, ferrous titanate 2-3, ANTIMONY TRIOXIDE SB 203 99.8 PCT 4-4.5, phenoxy group methyl alcohol 0.2-0.3.

The transformer oil that described a kind of thermolysis is strong, be made up of following concrete steps:

(1) zirconium boride 99.5004323A8ure, ferrous titanate and ANTIMONY TRIOXIDE SB 203 99.8 PCT are added to ball milling in ball mill to mix, add Zinic stearas again and continue ball milling 0.5-1h, by zinc acetylacetonate, ethanol and oleic acid mix and blend, ultrasonicly to clarify to solution, add the mixed powder then hydro-thermal reaction 20-24h under 160-165 ° of C of above-mentioned preparation again, precipitation is dehydrated for subsequent use;

(2) polyimide is heated to melting, then adds quadrol and silane coupling agent KH570 mixes, be sprayed on particle prepared by step (1), for subsequent use after naturally cooling;

(3) transformer foundation oil and soybean oil are mixed and heated to 210-230 ° of C, then add particle mixing and stirring prepared by polymine and step (2), then under 1200-1400 rev/min of high speed dispersor, stir 0.5-1h, be incubated 2-3h;

(4) add other surplus materials by after the transformer oil cool to room temperature in (3), dispersed with stirring is evenly filtered afterwards, and removing impurity, can obtain.

Advantage of the present invention is: the present invention adopts the stearic acid modified nanoparticle of tensio-active agent, at nano particle zirconium boride 99.5004323A8ure, ferrous titanate and ANTIMONY TRIOXIDE SB 203 99.8 PCT surface formation protective layer prevent the reunion between nano particle, improve the stability of nano-fluid, hydrophilic macromolecule polyimide is adopted to be coated on nanoparticle surface, macromolecular compound forms one deck protecting sheathing, the distance between solid particulate is prevented to reduce further, improve the permanent stability of suspension, in transformer foundation oil, add polyelectrolyte polymine effectively can improve ionic environment, particle stability in transformer oil is strengthened, not free settling, the nanoparticle added is with the use of the heat radiation that effectively can improve transformer oil, high temperature resistant, high flash point, anti-oxidant good with flame retardant properties, transformer oil prepared by the present invention effectively raises the work-ing life of transformer oil and reduces danger coefficient, improve quality, expand application prospect, and cost is low, raw material sources are convenient, be worthy to be popularized.

Embodiment

The transformer oil that thermolysis is strong, is made up of the raw material of following weight part (kilogram): zinc acetylacetonate 4, oleic acid 0.7, ethanol 20, polyimide 2, quadrol 0.2, silane coupling agent KH5700.4, transformer foundation oil 1000, polymine 2, Zinic stearas 0.3, soybean oil 50, nickel oxide 1, zirconium boride 99.5004323A8ure 3, ferrous titanate 2, ANTIMONY TRIOXIDE SB 203 99.8 PCT 4, phenoxy group methyl alcohol 0.2.

The transformer oil that described a kind of thermolysis is strong, be made up of following concrete steps:

(1) zirconium boride 99.5004323A8ure, ferrous titanate and ANTIMONY TRIOXIDE SB 203 99.8 PCT are added to ball milling in ball mill to mix, add Zinic stearas again and continue ball milling 0.5h, by zinc acetylacetonate, ethanol and oleic acid mix and blend, ultrasonicly to clarify to solution, add the mixed powder then hydro-thermal reaction 20h under 160 ° of C of above-mentioned preparation again, precipitation is dehydrated for subsequent use;

(2) polyimide is heated to melting, then adds quadrol and silane coupling agent KH570 mixes, be sprayed on particle prepared by step (1), for subsequent use after naturally cooling;

(3) transformer foundation oil and soybean oil are mixed and heated to 210 ° of C, then add particle mixing and stirring prepared by polymine and step (2), then under 1200 revs/min of high speed dispersors, stir 0.5h, be incubated 2h;

(4) add other surplus materials by after the transformer oil cool to room temperature in (3), dispersed with stirring is evenly filtered afterwards, and removing impurity, can obtain.

Transformer oil work voltage breakdown of the present invention is for more than 80KV, and specific inductivity is 2.15,90 ° of C current displacement angle tangent values is 0.0003, and volume specific resistance is 9 × 10 ¹²Ω m, thermoelectricity conductance is 2.10Wm ^-1k ^-1, specific conductivity is 5.4pS/m.

Claims (2)

1. the transformer oil that a thermolysis is strong, it is characterized in that, be made up of the raw material of following weight part: zinc acetylacetonate 4-5, oleic acid 0.7-1, ethanol 20-24, polyimide 2-3, quadrol 0.2-0.4, silane coupling agent KH5700.4-0.6, transformer foundation oil 1000-1100, polymine 2-3, Zinic stearas 0.3-0.4, soybean oil 50-55, nickel oxide 1-2, zirconium boride 99.5004323A8ure 3-4, ferrous titanate 2-3, ANTIMONY TRIOXIDE SB 203 99.8 PCT 4-4.5, phenoxy group methyl alcohol 0.2-0.3.

2. the transformer oil that a kind of thermolysis is strong according to claim 1, is characterized in that, is made up of following concrete steps:

(1) zirconium boride 99.5004323A8ure, ferrous titanate and ANTIMONY TRIOXIDE SB 203 99.8 PCT are added to ball milling in ball mill to mix, add Zinic stearas again and continue ball milling 0.5-1h, by zinc acetylacetonate, ethanol and oleic acid mix and blend, ultrasonicly to clarify to solution, add the mixed powder then hydro-thermal reaction 20-24h under 160-165 ° of C of above-mentioned preparation again, precipitation is dehydrated for subsequent use;

(2) polyimide is heated to melting, then adds quadrol and silane coupling agent KH570 mixes, be sprayed on particle prepared by step (1), for subsequent use after naturally cooling;

(3) transformer foundation oil and soybean oil are mixed and heated to 210-230 ° of C, then add particle mixing and stirring prepared by polymine and step (2), then under 1200-1400 rev/min of high speed dispersor, stir 0.5-1h, be incubated 2-3h;

(4) add other surplus materials by after the transformer oil cool to room temperature in (3), dispersed with stirring is evenly filtered afterwards, and removing impurity, can obtain.