CN105349231A - Transformer oil and preparation method thereof - Google Patents
Transformer oil and preparation method thereof Download PDFInfo
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- CN105349231A CN105349231A CN201510851928.5A CN201510851928A CN105349231A CN 105349231 A CN105349231 A CN 105349231A CN 201510851928 A CN201510851928 A CN 201510851928A CN 105349231 A CN105349231 A CN 105349231A
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Abstract
The invention discloses transformer oil and a preparation method thereof. The preparation method comprises the first step of smashing Chinese gall, poliothyrsis sinensis, gynocardia odorata and cotinus coggygria into plant powder, the second step of mixing and heating the plant powder, water, pectinase, cellulase and acid and then adding alkali liquor for neutralization to prepare enzymolysis mixed liquor, the third step of performing fractional distillation on the enzymolysis mixed liquor and then collecting fraction at the temperature between 175 DEG C and 185 DEG C to prepare plant extract, and the fourth step of mixing mineral oil, plant oil, the plant extract, phosphate, nitrite, triethanolamine, antioxidant, neopentyl glycol and a triazole compound and then drying the mixture to prepare the transformer oil. The transformer oil prepared through the method has excellent anti-insulation, heat conduction and flame-retardant performance.
Description
Technical field
The present invention relates to transformer, particularly, relate to a kind of transformer oil and preparation method thereof.
Background technology
Electric insulating oil is a kind of in the electric installation such as transformer, mutual inductor, both as the dielectric of electric installation, again as the heat-conducting medium of conductive electrical equipment heat energy, mainly plays insulation and cooling effect.
Along with the development of power industry, electrical network and power load just constantly increase, and user also constantly increases to electric installations such as transformers and with the security requirement of oil.Especially high requirement is proposed to the fire line of the oil-filled transformer used in urban distribution network Highrise buildings, thus require that the electric insulating oil used should have higher burning-point (being not less than 300 DEG C according to GB/T3536 or ASTMD92 method test burning-point).At present, electric insulating oil can meet the requirement of high insulation, but be difficult to meet has excellent anti-insulation, heat conduction and fire-retardant performance simultaneously.
Summary of the invention
The object of this invention is to provide a kind of transformer oil and preparation method thereof, the transformer oil obtained by the method has excellent anti-insulation, heat conduction and fire-retardant performance.
To achieve these goals, the invention provides a kind of preparation method of transformer oil, comprising:
1) by broken to Turkey-galls, Chinese pearlbloomtree, Gynocardia odorata R. Br and smoke tree wood powder obtained plant powder;
2) plant powder, water, polygalacturonase, cellulase and acid mixed and heat-treats, then adding alkali lye and carry out neutralizing with obtained enzymolysis mixed solution;
3) enzymolysis mixed solution is carried out fractionation process, then collect the cut of 175-185 DEG C with obtained plant milk extract;
4) mineral oil, vegetables oil, plant milk extract, phosphoric acid ester, nitrite, trolamine, oxidation inhibitor, neopentyl glycol and triazole class compounds are mixed, then dry obtained transformer oil.
The invention provides a kind of transformer oil, this transformer oil is obtained by the preparation of above-mentioned method.
Pass through technique scheme, first the present invention carries out enzymolysis to Turkey-galls, Chinese pearlbloomtree, Gynocardia odorata R. Br and smoke tree wood powder, then carry out extracting with obtained plant milk extract, then utilize the synergy of mineral oil, vegetables oil, plant milk extract, phosphoric acid ester, nitrite, trolamine, oxidation inhibitor, neopentyl glycol and triazole class compounds, make the transformer oil obtained have excellent anti-insulation, heat conduction and fire-retardant performance.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The invention provides a kind of preparation method of transformer oil, comprising:
1) by broken to Turkey-galls, Chinese pearlbloomtree, Gynocardia odorata R. Br and smoke tree wood powder obtained plant powder;
2) plant powder, water, polygalacturonase, cellulase and acid mixed and heat-treats, then adding alkali lye and carry out neutralizing with obtained enzymolysis mixed solution;
3) enzymolysis mixed solution is carried out fractionation process, then collect the cut of 175-185 DEG C with obtained plant milk extract;
4) mineral oil, vegetables oil, plant milk extract, phosphoric acid ester, nitrite, trolamine, oxidation inhibitor, neopentyl glycol and triazole class compounds are mixed, then dry obtained transformer oil.
In step 1 of the present invention) in, the consumption of each material can be selected in wide scope, but in order to make the transformer oil obtained, there is more excellent anti-insulation, heat conduction and fire-retardant performance, preferably, relative to the Turkey-galls of 100 weight parts, the consumption of Chinese pearlbloomtree is 30-50 weight part, and the consumption of Gynocardia odorata R. Br is 25-35 weight part, and the consumption of smoke tree wood is 30-40 weight part.
In step 1 of the present invention) in, the particle diameter of plant powder can be selected in wide scope, but in order to make the transformer oil obtained have more excellent anti-insulation, heat conduction and fire-retardant performance, preferably, in step 1) in, the particle diameter of plant powder is 0.3-0.5mm.
In step 2 of the present invention) in, the consumption of each material can be selected in wide scope, but in order to make the transformer oil obtained, there is more excellent anti-insulation, heat conduction and fire-retardant performance, preferably, relative to the plant powder of 100 weight parts, the consumption of water is 200-250 weight part, and the consumption of polygalacturonase is 15-30 weight part, the consumption of cellulase is 8-20 weight part, and the pH of system that plant powder, water, polygalacturonase, cellulase and acid are formed afterwards is 3.5-4.5.
In step 2 of the present invention) in, heat treated actual conditions can be selected in wide scope, but in order to make the transformer oil obtained, there is more excellent anti-insulation, heat conduction and fire-retardant performance, preferably, thermal treatment at least meets the following conditions: thermal treatment temp is 75-85 DEG C, and heat treatment time is 1-2h.
In step 2 of the present invention) in, the pH of enzymolysis mixed solution can select in wide scope, but in order to make the transformer oil obtained have more excellent anti-insulation, heat conduction and fire-retardant performance, preferably, the pH of enzymolysis mixed solution is 6.8-7.2.
In step 4 of the present invention) in, the consumption of each material can be selected in wide scope, but in order to make the transformer oil obtained, there is more excellent anti-insulation, heat conduction and fire-retardant performance, preferably, relative to the mineral oil of 100 weight parts, the consumption of vegetables oil is 40-60 weight part, the consumption of plant milk extract is 20-37 weight part, the consumption of phosphoric acid ester is 10-16 weight part, the consumption of nitrite is 4-8 weight part, the consumption of trolamine is 9-12 weight part, the consumption of oxidation inhibitor is 1-2 weight part, the consumption of neopentyl glycol is 22-30 weight part, the consumption of triazole class compounds is 4-9 weight part.
In step 4 of the present invention) in, the concrete kind of oxidation inhibitor and triazole class compounds can be selected in wide scope, but in order to make the transformer oil obtained have more excellent anti-insulation, heat conduction and fire-retardant performance, preferably, oxidation inhibitor be selected from p-ten.-butylcatechol, 4-ethyl pyrocatechol and adjacent methyl hydroquinone one or more, triazole class compounds is selected from 1-H-1,2,4-triazole, 4-amino-1,2,4-triazole and 1-H-1, one or more in 2,3-triazole.
In step 4 of the present invention) in, the water content of transformer oil can be selected in wide scope, but in order to make the transformer oil obtained have more excellent anti-insulation, heat conduction and fire-retardant performance, preferably, after super-dry, the water content of transformer oil is not more than 0.05 % by weight.
The invention provides a kind of transformer oil, this transformer oil is obtained by the preparation of above-mentioned method.
Below will be described the present invention by embodiment.
Embodiment 1
1) Turkey-galls, Chinese pearlbloomtree, Gynocardia odorata R. Br and smoke tree wood being pulverized obtained particle diameter according to the weight ratio of 100:40:30:35 is the plant powder of 0.4mm;
2) plant powder, water, polygalacturonase, cellulase are mixed make the pH of system be 4 and heat-treat 1.5h at 80 DEG C with acid according to 100:225:20:15 weight ratio, then add alkali lye and carry out neutralizing with obtained enzymolysis mixed solution (pH is for 7);
3) enzymolysis mixed solution is carried out fractionation process, then collect the cut of 175-185 DEG C with obtained plant milk extract;
4) by mineral oil, vegetables oil, plant milk extract, phosphoric acid ester, nitrite, trolamine, oxidation inhibitor (4-ethyl pyrocatechol), neopentyl glycol and triazole class compounds (1-H-1,2,4-triazole) mix according to the weight ratio of 100:50:30:14:6:11:1.5:26:9, then dry obtained water content is the transformer oil A1 of 0.05 % by weight.
Embodiment 2
1) Turkey-galls, Chinese pearlbloomtree, Gynocardia odorata R. Br and smoke tree wood being pulverized obtained particle diameter according to the weight ratio of 100:30:25:30 is the plant powder of 0.3mm;
2) plant powder, water, polygalacturonase, cellulase are mixed make the pH of system be 3.5 and heat-treat 1h at 75 DEG C with acid according to 100:200:15:8 weight ratio, then add alkali lye and carry out neutralizing with obtained enzymolysis mixed solution (pH is for 6.8);
3) enzymolysis mixed solution is carried out fractionation process, then collect the cut of 175-185 DEG C with obtained plant milk extract;
4) by mineral oil, vegetables oil, plant milk extract, phosphoric acid ester, nitrite, trolamine, oxidation inhibitor (4-ethyl pyrocatechol), neopentyl glycol and triazole class compounds (4-amino-1,2,4-triazole) mix according to the weight ratio of 100:40:20:10:4:9:1:22:4, then dry obtained water content is the transformer oil A2 of 0.03 % by weight.
Embodiment 3
1) Turkey-galls, Chinese pearlbloomtree, Gynocardia odorata R. Br and smoke tree wood being pulverized obtained particle diameter according to the weight ratio of 100:50:35:40 is the plant powder of 0.5mm;
2) plant powder, water, polygalacturonase, cellulase are mixed make the pH of system be 4.5 and heat-treat 2h at 85 DEG C with acid according to 100:250:30:20 weight ratio, then add alkali lye and carry out neutralizing with obtained enzymolysis mixed solution (pH is for 7.2);
3) enzymolysis mixed solution is carried out fractionation process, then collect the cut of 175-185 DEG C with obtained plant milk extract;
4) by mineral oil, vegetables oil, plant milk extract, phosphoric acid ester, nitrite, trolamine, oxidation inhibitor (adjacent methyl hydroquinone), neopentyl glycol and triazole class compounds (1-H-1,2,3-triazole) mix according to the weight ratio of 100:60:37:16:8:12:2:30:9, then dry obtained water content is the transformer oil A3 of 0.02 % by weight.
Comparative example 1
Carry out obtained transformer oil B1 according to the method for embodiment 1, unlike, step 1) in do not use Turkey-galls.
Comparative example 2
Carry out obtained transformer oil B2 according to the method for embodiment 1, unlike, step 1) in do not use Chinese pearlbloomtree.
Comparative example 3
Carry out obtained transformer oil B3 according to the method for embodiment 1, unlike, step 1) in do not use Gynocardia odorata R. Br.
Comparative example 4
Carry out obtained transformer oil B4 according to the method for embodiment 1, unlike, step 1) in do not use smoke tree wood.
Comparative example 5
Carry out obtained transformer oil B5 according to the method for embodiment 1, unlike, step 4) in do not use plant milk extract.
Test example 1
1) method recorded by GB/5654-2007 detects volume specific resistance (90 DEG C)/Ω m of above-mentioned transformer oil;
2) method recorded by GB/T261-2008 detect above-mentioned voltage device oil flash/DEG C;
3) method recorded by ASTMD2717-1983 detects the thermal conductivity (W/m DEG C) at 40 DEG C of above-mentioned voltage device oil; Detected result is in table 1.
Table 1
| Volume specific resistance (90 DEG C)/10 10Ω·m | Voltage device oil flash/DEG C | Thermal conductivity (W/m DEG C) | |
| A1 | 8.3 | 238 | 0.24 |
| A2 | 8.1 | 232 | 0.25 |
| A3 | 8.2 | 237 | 0.23 |
| B1 | 6.1 | 175 | 0.11 |
| B2 | 5.3 | 178 | 0.09 |
| B3 | 4.8 | 169 | 0.10 |
| B4 | 4.9 | 189 | 0.08 |
| B5 | 5.0 | 195 | 0.09 |
Known by upper table, transformer oil provided by the invention has excellent anti-insulation, heat conduction and fire-retardant performance.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a preparation method for transformer oil, is characterized in that, comprising:
1) by broken to Turkey-galls, Chinese pearlbloomtree, Gynocardia odorata R. Br and smoke tree wood powder obtained plant powder;
2) described plant powder, water, polygalacturonase, cellulase and acid mixed and heat-treats, then adding alkali lye and carry out neutralizing with obtained enzymolysis mixed solution;
3) described enzymolysis mixed solution is carried out fractionation process, then collect the cut of 175-185 DEG C with obtained plant milk extract;
4) mineral oil, vegetables oil, described plant milk extract, phosphoric acid ester, nitrite, trolamine, oxidation inhibitor, neopentyl glycol and triazole class compounds are mixed, then dry obtained transformer oil.
2. preparation method according to claim 1, wherein, in step 1) in, relative to the described Turkey-galls of 100 weight parts, the consumption of described Chinese pearlbloomtree is 30-50 weight part, and the consumption of described Gynocardia odorata R. Br is 25-35 weight part, and the consumption of described smoke tree wood is 30-40 weight part.
3. preparation method according to claim 1, wherein, in step 1) in, the particle diameter of described plant powder is 0.3-0.5mm.
4. according to the preparation method in claim 1-3 described in any one, wherein, relative to the described plant powder of 100 weight parts, the consumption of described water is 200-250 weight part, the consumption of described polygalacturonase is 15-30 weight part, the consumption of described cellulase is 8-20 weight part, and the pH of system that described plant powder, water, polygalacturonase, cellulase and acid are formed afterwards is 3.5-4.5.
5. preparation method according to claim 4, wherein, described thermal treatment at least meets the following conditions: thermal treatment temp is 75-85 DEG C, and heat treatment time is 1-2h.
6. preparation method according to claim 4, wherein, the pH of described enzymolysis mixed solution is 6.8-7.2.
7. the preparation method according to claim 5 or 6, wherein, relative to the described mineral oil of 100 weight parts, the consumption of described vegetables oil is 40-60 weight part, the consumption of described plant milk extract is 20-37 weight part, the consumption of described phosphoric acid ester is 10-16 weight part, the consumption of described nitrite is 4-8 weight part, the consumption of described trolamine is 9-12 weight part, the consumption of described oxidation inhibitor is 1-2 weight part, the consumption of described neopentyl glycol is 22-30 weight part, and the consumption of described triazole class compounds is 4-9 weight part.
8. preparation method according to claim 7, wherein, described oxidation inhibitor be selected from p-ten.-butylcatechol, 4-ethyl pyrocatechol and adjacent methyl hydroquinone one or more, described triazole class compounds is selected from 1-H-1,2,4-triazole, 4-amino-1,2,4-triazole and 1-H-1, one or more in 2,3-triazole.
9. preparation method according to claim 7, wherein, after described drying, the water content of described transformer oil is not more than 0.05 % by weight.
10. a transformer oil, is characterized in that, described transformer oil is obtained by the method preparation in claim 1-9 described in any one.
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| CN201510851928.5A CN105349231A (en) | 2015-11-26 | 2015-11-26 | Transformer oil and preparation method thereof |
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| CN201510851928.5A CN105349231A (en) | 2015-11-26 | 2015-11-26 | Transformer oil and preparation method thereof |
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Cited By (5)
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| CN105969485A (en) * | 2016-05-30 | 2016-09-28 | 五河县黄淮粮油机械有限公司 | Anti-wear additive of lubricating oil |
| CN105969484A (en) * | 2016-05-30 | 2016-09-28 | 五河县黄淮粮油机械有限公司 | Additive for improving anti-oxidation and anti-corrosion performance of lubricating oil |
| CN106010740A (en) * | 2016-05-30 | 2016-10-12 | 五河县黄淮粮油机械有限公司 | Lubricating oil stabilizing additive |
| CN106520259A (en) * | 2016-10-09 | 2017-03-22 | 安徽四新电子有限责任公司 | Insulating oil for explosion-proof capacitor |
| CN111621353A (en) * | 2020-04-20 | 2020-09-04 | 浙江中博润滑油有限公司 | Transformer oil manufacturing process with high heat conductivity |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969485A (en) * | 2016-05-30 | 2016-09-28 | 五河县黄淮粮油机械有限公司 | Anti-wear additive of lubricating oil |
| CN105969484A (en) * | 2016-05-30 | 2016-09-28 | 五河县黄淮粮油机械有限公司 | Additive for improving anti-oxidation and anti-corrosion performance of lubricating oil |
| CN106010740A (en) * | 2016-05-30 | 2016-10-12 | 五河县黄淮粮油机械有限公司 | Lubricating oil stabilizing additive |
| CN106520259A (en) * | 2016-10-09 | 2017-03-22 | 安徽四新电子有限责任公司 | Insulating oil for explosion-proof capacitor |
| CN111621353A (en) * | 2020-04-20 | 2020-09-04 | 浙江中博润滑油有限公司 | Transformer oil manufacturing process with high heat conductivity |
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Application publication date: 20160224 |