阅读说明：本技术 一种油浸电机 (A kind of oil immersion motor ) 是由 林波 叶灵荣 林娜 金新兵 叶云兰 于 2019-09-05 设计创作，主要内容包括：本发明公开了一种电机用复合绝缘油。本发明公开了上述电机用复合绝缘油的制备方法,包括以下步骤：将纳米级炭黑、硅粉混合均匀后,加入乙二醇,超声分散后,研磨得到第一物料；将钛酸四丁酯加入无水乙醇中,加入二乙醇胺,滴加浓盐酸调节pH值后,加入氧化镧,搅拌得到第二物料；将第一物料、第二物料混合后,超声分散,研磨后,喷雾干燥,得到第三物料；将第三物料加入花生绝缘油中,超声分散后,超声分散得到电机用复合绝缘油。本发明公开了一种油浸电机,包括前端盖、后端盖、机壳、转子和定子,前端盖和后端盖分别密封设置在机壳的两端,定子固定连接在机壳内,转子套接在定子上,机壳内填充有上述电机用复合绝缘油。(The invention discloses a kind of motor compound inslation oil.The invention discloses the above-mentioned motor preparation methods of compound inslation oil, comprising the following steps: after mixing by nanoscale carbon black, silicon powder, ethylene glycol is added, after ultrasonic disperse, grinding obtains first material；Butyl titanate is added to absolute ethanol, diethanol amine is added, after concentrated hydrochloric acid adjusting pH value is added dropwise, lanthana is added, stirs to get second material；After first material, second material are mixed, ultrasonic disperse, after grinding, spray drying obtains third material；Third material is added in peanut insulating oil, after ultrasonic disperse, ultrasonic disperse obtains motor compound inslation oil.The invention discloses a kind of oil immersion motors, including drive end bearing bracket, rear end cap, casing, rotor and stator, drive end bearing bracket and rear end cap are sealingly disposed in the both ends of casing respectively, and stator is fixedly connected in casing, rotor is socketed on stator, filled with above-mentioned motor compound inslation oil in casing.)

1. a kind of motor preparation method of compound inslation oil, which comprises the following steps:

S1, by nanoscale carbon black, silicon powder after mixing, ethylene glycol is added, after ultrasonic disperse, grinding obtains first material；

S2, butyl titanate is added to absolute ethanol, diethanol amine is added, after concentrated hydrochloric acid adjusting pH value is added dropwise, oxidation is added Lanthanum stirs to get second material；

S3, by first material, second material mix after, ultrasonic disperse, after grinding, spray drying, obtain third material；

S4, third material is added in peanut insulating oil, after ultrasonic disperse, ultrasonic disperse obtains motor compound inslation oil.

2. motor compound inslation oil preparation method according to claim 1, which is characterized in that in S1, nanoscale carbon black, silicon The molar ratio of powder is 1.5-1.8:1；Preferably, in S1, quality of glycol is equal with nanoscale carbon black, silicon powder quality sum.

3. motor compound inslation oil preparation method according to claim 1, which is characterized in that in S1, the function of ultrasonic disperse Rate is 260-320W, and the time of ultrasonic disperse is 0.5-0.75h；Preferably, in S1, grinding revolving speed is 180-200rpm, grinding Time is 18-22h.

4. motor compound inslation oil preparation method according to claim 1, which is characterized in that in S2, diethanol amine, metatitanic acid Four butyl esters, dehydrated alcohol volume ratio are 1:3.8-4:6.5-6.8, and the molar ratio of diethanol amine and lanthana is 1:0.1-0.3.

5. motor compound inslation oil preparation method according to claim 1, which is characterized in that in S3, the function of ultrasonic disperse Rate is 220-240W, time 1.5-2h；Preferably, in S3, grinding revolving speed is 220-240rpm, time 7-9h.

6. motor compound inslation oil preparation method according to claim 1, which is characterized in that in S4, third material and flower The mass ratio of raw insulating oil is 1:120-125.

7. motor compound inslation oil preparation method according to claim 1, which is characterized in that in S4, the function of ultrasonic disperse Rate is 220-240W, time 1-1.5h.

8. motor compound inslation oil preparation method according to claim 1, which is characterized in that in S4, the temperature of ultrasonic disperse Degree is 65-70 DEG C.

9. a kind of motor compound inslation oil, which is characterized in that using any one of the claim 1-8 motor compound inslation Oily preparation method is made.

10. a kind of oil immersion motor, including drive end bearing bracket, rear end cap, casing, rotor and stator, drive end bearing bracket and rear end cap seal respectively The both ends of casing are set, and stator is fixedly connected in casing, and rotor is socketed on stator, which is characterized in that filling in casing There is motor compound inslation oil as claimed in claim 9.

Technical field

The present invention relates to oil immersion technical field of motors more particularly to a kind of motor compound inslation oil and preparation method thereof, And a kind of oil immersion motor.

Background technique

Motor longevity of service can generate a large amount of heat, it is necessary to take away heat in time, otherwise temperature is more than motor copper Line temperature classification, gently then influences electric efficiency and service life, heavy then burn motor and cause accident.

And vegetable insulating oil is applied in motor or transformer as a kind of novel environment friendly dielectric, so And generally vegetable insulating oil tolerance surge voltage ability is not generally strong, heat dissipation performance is bad, hinders vegetable insulating oil popularization and answers With.

Summary of the invention

The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of motor compound inslation proposed Oil and preparation method thereof and a kind of oil immersion motor；It is basic material with peanut insulating oil, is changed by the way of Ceramic Composite Property, trap depth in peanut insulating oil is increased, the presence of these shallow traps, required escape after keeping electronics captured Amount is also bigger, to promote the insulation characterisitic of motor compound inslation oil.

A kind of preparation method of motor compound inslation oil, comprising the following steps:

S1, by nanoscale carbon black, silicon powder after mixing, ethylene glycol is added, after ultrasonic disperse, grinding obtains the first object Material；

S2, butyl titanate is added to absolute ethanol, diethanol amine is added, after concentrated hydrochloric acid adjusting pH value is added dropwise, be added Lanthana stirs to get second material；

S3, by first material, second material mix after, ultrasonic disperse, after grinding, spray drying, obtain third material；

S4, third material is added in peanut insulating oil, after ultrasonic disperse, ultrasonic disperse obtains motor compound inslation Oil.

Preferably, in S1, nanoscale carbon black, silicon powder molar ratio be 1.5-1.8:1.

Preferably, in S1, quality of glycol is equal with nanoscale carbon black, silicon powder quality sum.

Preferably, in S1, the power of ultrasonic disperse is 260-320W, time 0.5-0.75h.

Preferably, in S1, grinding revolving speed is 180-200rpm, time 18-22h.

Preferably, in S2, diethanol amine, butyl titanate, dehydrated alcohol volume ratio are 1:3.8-4:6.5-6.8, oxidation The molar ratio of lanthanum and dehydrated alcohol is 1:8-8.5.

Preferably, in S2, pH value 6.2-6.5.

Preferably, in S3, the power of ultrasonic disperse is 220-240W, time 1.5-2h.

Preferably, in S3, grinding revolving speed is 220-240rpm, time 7-9h.

Preferably, in S3, the temperature of spray drying is 110-120 DEG C.

Preferably, in S4, the mass ratio of third material and peanut insulating oil is 1:120-125.

Preferably, in S4, the power of ultrasonic disperse is 220-240W, time 1-1.5h.

Preferably, the temperature of above-mentioned ultrasonic disperse is 65-70 DEG C.

Preferably, in S4, peanut insulating oil is prepared using following technique: by peanut oil alkali white silk, washing, dry, absorption is de- Color, depickling obtain peanut insulating oil.

Preferably, peanut oil is extracted from transgenic peanuts.

The oleic acid content of peanut oil is higher, and fatty acid degree of unsaturation is low, and transgenic peanuts oil has yield height, price The advantages that cheap is the excellent basic oil for preparing vegetable insulating oil.But there are solid particle, pigment, water in peanut oil Point, the impurity such as free fatty acid, influence the physicochemical property and electric property of vegetable insulating oil, need through alkali white silk, washing, dry The removal of the techniques such as dry, decoloration, depickling.

Using transgenic peanuts oil as raw material, has oleic acid content higher, due to only one unsaturated bond of oleic acid, make It is more stable compared with common peanut oil to obtain transgenic peanuts oil；Meanwhile transgenic peanuts oleic acid valence is lower, can prevent free-fat Polarization forms ionic bridge to acid in the electric field, improves the breakdown voltage of peanut insulating oil, reduces dielectric dissipation factor.Transgenic peanuts Oil also has many advantages, such as that fatty acid degree of unsaturation is low, and yield is high, cheap, is the excellent base for preparing vegetable insulating oil Plinth oil；By techniques such as alkali white silk, washing, drying, decoloration, depicklings, it can effectively remove in peanut oil that there are solid particles, color The impurity such as element, moisture, free fatty acid enhance the physicochemical property and electric property of peanut insulating oil.

Preferably, in the peanut insulating oil preparation step of S4, it is as follows that alkali practices technique: lye being added in peanut oil, heating To 60-65 DEG C, after stirring 15-18min, stands 12-14h and obtain 4 materials.

Preferably, in the peanut insulating oil preparation step of S4, it is 1:300- that alkali, which practices technique lye and the volume ratio of peanut oil, 400, the concentration of lye is 15-18 ° of B é.

Preferably, in the peanut insulating oil preparation step of S4, washing process are as follows: with the speed of 70-75L/min to the 4th object Soft water is added in material, stirs 15-20min, after standing 3-4h, draining wash water obtains the 5th material.

Preferably, in the peanut insulating oil preparation step of S4, washing process soft water and the volume ratio of transgenic peanuts oil are 1:60-65.

Preferably, in the peanut insulating oil preparation step of S4, drying process using vacuum drying, vacuum degree be -0.08~- 0.1MPa, temperature are 102-105 DEG C.

Preferably, in the peanut insulating oil preparation step of S4, decoloration process uses activated decoloration, and mixing speed is 70-80rpm, temperature are 104-108 DEG C, time 30-35min.

Preferably, in the peanut insulating oil preparation step of S4, deacidifying process pressure is 155-160Pa, temperature 262-267 DEG C, flow 550-650L/h.

In S1 of the present invention, under the action of mechanical forces, silicon particle is when undergoing partial amorphism process, specific surface area and table Face can incrementally increase, with the carbon in nanoscale carbon black by Covalent bonding together, and the ultrasonic disperse of special parameter, can make this two Kind element more uniformly contacts；Ethylene glycol, which is added, can effectively completely cut off the oxygen in air, and element silicon is prevented to be oxidized, and improve The efficiency of the chemical reaction avoids excessive impurity from generating；Using nanoscale carbon black, surface hydroxyl is more, and specific surface area is larger, energy Enough accelerate the Covalent bonding together between carbon, silicon, improves preparation efficiency.

In S2 of the present invention, during preparing second material, butyl titanate, diethanol amine are as presoma, in anhydrous second It is mixed under this liquid-phase condition of alcohol, hydrolysis, condensation chemical reaction occurs, forms the gel network of three-dimensional structure；Add specific ratio The lanthana of example, the superior chemical activity that electronics cloud structure has, can promote the formation of gel network.

In S3 of the present invention, first material can be evenly dispersed in the gel of second material under the action of ultrasonic disperse In network；Lanthanum ion can be played bridging effect in S3, be on the one hand equably adsorbed on gel net with its chemical activity first In network, first material is on the other hand adsorbed, keeps first material distribution more uniform；Secondly, lanthanum ion is as catalyst, Neng Goujin One step promotes the Covalent bonding together between carbon and silicon, reduces carbon ion in first material, silicon ion residual, improves SiC synthesis Rate.

In S4 of the present invention, under the action of ultrasonic disperse, oleic acid in peanut insulating oil can be with silicon carbide, titanium dioxide Titanium is combined closely by covalent bond and Van der Waals force, is made oleic acid by two kinds of physically encapsulation, chemical bonding forms, is coated on always Silicon carbide, titanium dioxide surface, prevent agglomeration, so that it is exhausted so that silicon carbide and titanium dioxide is evenly dispersed in peanut In edge oil.By the silicon carbide of Coated with Oleic Acid, titanium dioxide, steric hindrance is on the one hand increased, improves silicon carbide, titanium dioxide Nonpolarity, and the dispersibility in peanut insulating oil, to improve the breakdown voltage of motor compound inslation oil；Another party Face can reduce Lacking oxygen, free electron in peanut insulating oil, so that the resistivity of peanut insulating oil is greatly improved, thus Further strengthen the electric property of motor compound inslation oil.

In S4 of the present invention, because of its high specific surface area and reactivity, it is exhausted to absorb peanut first for silicon carbide, titanium dioxide The oxygen generated during edge oil degradation inhibits grease molecules oxidation course；Secondly, silicon carbide, titanium dioxide can adsorb peanut The moisture of insulating oil remnants inhibits grease molecules to hydrolyze process, improves the anti-aging effect of peanut insulating oil；Again, silicon carbide, Titanium dioxide polarizes under electric field action, and a large amount of traps are formed around it, so that the migration of charged particle in oil is hindered, Conduction current is reduced, breakdown voltage is improved.

A kind of motor compound inslation oil, is made using above-mentioned motor compound inslation oil preparation method.

A kind of oil immersion motor, including drive end bearing bracket, rear end cap, casing, rotor and stator, drive end bearing bracket and rear end cap seal respectively The both ends of casing are set, and stator is fixedly connected in casing, and rotor is socketed on stator, is used in casing filled with above-mentioned motor Compound inslation oil.

It is filled in motor case using above-mentioned motor with compound inslation oil, due to improving with excellent electric property Heat dissipation performance in motor work process promotes motor insulation performance.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of oil immersion motor proposed by the present invention.

Specific embodiment

Combined with specific embodiments below the present invention is made further to explain.