High-temperature insulation transformator and processing method thereof
Technical field
The present invention relates to transformator, in particular it relates to a kind of high-temperature insulation transformator and processing method thereof.
Background technology
At present, the surface of power equipment need to coat one layer of insulant, as coatings, insullac etc. set to improve electric power
Standby exterior insulation, this not only increases the safety of power system, also improves system reliability of operation, certain journey
The thrifty cost of power equipment on degree.
But the insulant complex manufacturing technology on existing high-temperature insulation transformator causes production cost high, the most resistance to
High temperature resistant and the insulation effect of high-temperature insulation transformator is the most inconspicuous.
Summary of the invention
It is an object of the invention to provide a kind of high-temperature insulation transformator and processing method thereof, prepared by this processing method
High-temperature insulation transformator there is high temperature resistant and excellent insulation effect, this process steps is simple simultaneously, and raw material is easy to get.
To achieve these goals, the invention provides a kind of high-temperature-resistant insulating paint transformator, described transformator interior
Scribble high-temperature-resistant insulating paint compositions on outer wall, described compositions comprise epoxy resin, phenolic resin, polyimide resin,
Firebrake ZB, trimethylolpropane, benzoyl peroxide, PTPP (potassium tripolyphosphate), nano titanium oxide, filler and fire retardant;
Wherein, relative to the epoxy resin of 100 weight portions, the content of described phenolic resin is 15-20 weight portion, described poly-
The content of imide resin is 6-9 weight portion, and the content of described Firebrake ZB is 5-10 weight portion, containing of described trimethylolpropane
Amount is 50-70 weight portion, and the content of described benzoyl peroxide is 12-20 weight portion, and the content of described PTPP (potassium tripolyphosphate) is 2-9
Weight portion, the content of described nano titanium oxide is 0.5-1.5 weight portion, and the content of described filler is 7-12 weight portion, described
The content of fire retardant is 5-10 weight portion.
The processing method that present invention also offers a kind of high-temperature insulation transformator, described processing method includes:
A, by epoxy resin, phenolic resin, polyimide resin, Firebrake ZB, trimethylolpropane, benzoyl peroxide,
PTPP (potassium tripolyphosphate), nano titanium oxide, filler and fire retardant heating are mixed and made into high-temperature-resistant insulating paint compositions;
B, by described high-temperature-resistant insulating paint compositions brushing on the inside and outside wall of transformer tank;
Wherein, relative to the epoxy resin of 100 weight portions, the consumption of described phenolic resin is 15-20 weight portion, described poly-
The consumption of imide resin is 6-9 weight portion, and the consumption of described Firebrake ZB is 5-10 weight portion, the use of described trimethylolpropane
Amount is 50-70 weight portion, and the consumption of described benzoyl peroxide is 12-20 weight portion, and the consumption of described PTPP (potassium tripolyphosphate) is 2-9
Weight portion, the consumption of described nano titanium oxide is 0.5-1.5 weight portion, and the consumption of described filler is 7-12 weight portion, described
The consumption of fire retardant is 5-10 weight portion.
By technique scheme, the present invention is by sub-to epoxy resin, phenolic resin and polyamides under conditions of heating
In polyimide resin add Firebrake ZB, trimethylolpropane, benzoyl peroxide, PTPP (potassium tripolyphosphate), nano titanium oxide, filler and
Fire retardant prepares high-temperature-resistant insulating paint compositions, then by this high-temperature-resistant insulating paint compositions brushing inside and outside transformator
Forming paint film on wall, the heat resisting temperature of this paint film is more than 500 DEG C, and breakdown strength exists at more than 160KV/m, specific insulation
1.5×104More than Ω m.This process steps is simple simultaneously, and raw material is easy to get, low cost.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that described herein specifically
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The present invention is supplied to a kind of high-temperature-resistant insulating paint transformator, the inside and outside wall of described transformator scribbles high temperature resistant
Composition of insulating coating, described compositions comprises epoxy resin, phenolic resin, polyimide resin, Firebrake ZB, trihydroxy methyl third
Alkane, benzoyl peroxide, PTPP (potassium tripolyphosphate), nano titanium oxide, filler and fire retardant.Wherein, relative to 100 weight portions
Epoxy resin, the content of described phenolic resin is 15-20 weight portion, and the content of described polyimide resin is 6-9 weight portion, institute
The content stating Firebrake ZB is 5-10 weight portion, and the content of described trimethylolpropane is 50-70 weight portion, described benzoyl peroxide first
The content of acyl is 12-20 weight portion, and the content of described PTPP (potassium tripolyphosphate) is 2-9 weight portion, the content of described nano titanium oxide
For 0.5-1.5 weight portion, the content of described filler is 7-12 weight portion, and the content of described fire retardant is 5-10 weight portion.
In the present invention, the particle diameter of described nano titanium oxide can select in wide scope, can be this area institute
Known to the titanium dioxide of any Nano grade, but from cost and the high temperature resistant and insulation of high-temperature-resistant insulating paint compositions
Consider in effect, it is preferable that the particle diameter of described nano titanium oxide is 5-10nm.
In the present invention, the kind of described filler can select in wide scope, can be known in the art
What a kind of inorganic filler, but consider from the high temperature resistant and insulation effect of cost and high-temperature-resistant insulating paint compositions, it is preferable that
One or more in mica powder, Pulvis Talci, flake asbestos and Kaolin of described filler.
In the present invention, the particle diameter of described filler can select in wide scope, but is coated with from cost and high-temperature insulation
Consider in the high temperature resistant and insulation effect of feed composition, it is preferable that the particle diameter of described filler is 0.05-0.15mm.
In the present invention, the kind of described fire retardant can select in wide scope, can be known in the art
Any inorganic filler, but consider from the high temperature resistant and insulation effect of cost and high-temperature-resistant insulating paint compositions, preferably
Ground, one or more in zirconium oxide, antimony oxide and Borax of described fire retardant.
In the present invention, the kind of described epoxy resin can select in wide scope, can be known in the art
Any epoxy resin, but from the high temperature resistant and insulation effect of cost and high-temperature-resistant insulating paint compositions consider, excellent
Selection of land, described epoxy resin is bisphenol A type epoxy resin and/or bisphenol f type epoxy resin.
The processing method that present invention also offers a kind of high-temperature insulation transformator, described processing method includes:
A, by epoxy resin, phenolic resin, polyimide resin, Firebrake ZB, trimethylolpropane, benzoyl peroxide,
PTPP (potassium tripolyphosphate), nano titanium oxide, filler and fire retardant heating are mixed and made into high-temperature-resistant insulating paint compositions;
B, by described high-temperature-resistant insulating paint compositions brushing on the inside and outside wall of transformer tank;
Wherein, relative to the epoxy resin of 100 weight portions, the consumption of described phenolic resin is 15-20 weight portion, described poly-
The consumption of imide resin is 6-9 weight portion, and the consumption of described Firebrake ZB is 5-10 weight portion, the use of described trimethylolpropane
Amount is 50-70 weight portion, and the consumption of described benzoyl peroxide is 12-20 weight portion, and the consumption of described PTPP (potassium tripolyphosphate) is 2-9
Weight portion, the consumption of described nano titanium oxide is 0.5-1.5 weight portion, and the consumption of described filler is 7-12 weight portion, described
The consumption of fire retardant is 5-10 weight portion.
In the processing method that the present invention provides, the particle diameter of described nano titanium oxide can select in wide scope,
Can be the titanium dioxide of any Nano grade known in the art, but from cost and high-temperature-resistant insulating paint compositions
High temperature resistant and insulation effect on consider, it is preferable that the particle diameter of described nano titanium oxide is 5-10nm.
In the processing method that the present invention provides, the kind of described filler can select in wide scope, can be this
Any inorganic filler known to field, but from cost and the high temperature resistant and insulation effect of high-temperature-resistant insulating paint compositions
Upper consideration, it is preferable that one or more in mica powder, Pulvis Talci, flake asbestos and Kaolin of described filler.
In the processing method that the present invention provides, the particle diameter of described filler can select in wide scope, but from cost
Consider with on the high temperature resistant of high-temperature-resistant insulating paint compositions and insulation effect, it is preferable that the particle diameter of described filler is 0.05-
0.15mm。
In the processing method that the present invention provides, the kind of described fire retardant can select in wide scope, Ke Yishi
Any inorganic filler known in the art, but from cost and the high temperature resistant and insulation effect of high-temperature-resistant insulating paint compositions
Consider on fruit, it is preferable that one or more in zirconium oxide, antimony oxide and Borax of described fire retardant.
In the processing method that the present invention provides, the kind of described epoxy resin can select in wide scope, permissible
It is any epoxy resin known in the art, but from cost and the high temperature resistant and insulation of high-temperature-resistant insulating paint compositions
Consider in effect, it is preferable that described epoxy resin is bisphenol A type epoxy resin and/or bisphenol f type epoxy resin.
In the processing method that the present invention provides, described in add the temperature of hot mixing and incorporation time can be in wide scope
Select, but consider from cost and production efficiency, it is preferable that described in add the temperature of hot mixing and be 180-220 DEG C, incorporation time is
2-3h。
Hereinafter will be described the present invention by embodiment.In following example, heat resisting temperature parameter, Ji Chuanqiang
Degree parameter and specific insulation parameter are all recorded by the method for GB1981-81.
Bisphenol A type epoxy resin is the product of Guangzhou Yuan Chuan Chemical Co., Ltd., and bisphenol f type epoxy resin is Guangzhou dimension
The product of Li Na Chemical Co., Ltd., phenolic resin are the product of Shanghai Wei Pu Chemical Engineering Technology Services Co., Ltd, polyimides
Resin is the product of Suzhou Dao Chou engineering plastic company limited, and Firebrake ZB is the product of Hefei Wan Ran new material Science and Technology Ltd.
Product, trimethylolpropane is the product of Guangzhou Xin Putai Chemical Co., Ltd., and benzoyl peroxide is the bright China in Hengshui rubber and plastic science and technology
The product of company limited, PTPP (potassium tripolyphosphate) is the product of Changzhou river phosphorous chemical industry company limited, and nano titanium oxide is Shanghai titanium
The product of face Industrial Co., Ltd..
Embodiment 1
At 200 DEG C, by 100kg bisphenol A type epoxy resin, phenolic resin 18kg, polyimide resin 8kg, Firebrake ZB
7kg, trimethylolpropane 60kg, benzoyl peroxide 16kg, PTPP (potassium tripolyphosphate) 5kg, nano titanium oxide 1kg, mica powder
10kg and zirconium oxide 8kg mixing 2.5h, then cooling prepares high-temperature-resistant insulating paint compositions A1.Wherein, sodium rice titanium dioxide
Particle diameter be 8nm, the particle diameter of mica powder is 0.1mm.
At 25 DEG C, this high-temperature-resistant insulating paint compositions brushing is formed paint film, this paint on the inside and outside wall of transformator
The high temperature resistant parameter of film, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Embodiment 2
At 180 DEG C, by 100kg bisphenol A type epoxy resin, phenolic resin 15kg, polyimide resin 6kg, Firebrake ZB
5kg, trimethylolpropane 50kg, benzoyl peroxide 12kg, PTPP (potassium tripolyphosphate) 2kg, nano titanium oxide 0.5kg, mica powder
7kg and zirconium oxide 5kg mixing 2h, then cooling prepares high-temperature-resistant insulating paint compositions A2.Wherein, the grain of sodium rice titanium dioxide
Footpath is 5nm, and the particle diameter of mica powder is 0.05mm.
At 20 DEG C, this high-temperature-resistant insulating paint compositions brushing is formed paint film, this paint on the inside and outside wall of transformator
The high temperature resistant parameter of film, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Embodiment 3
At 220 DEG C, by 100kg bisphenol A type epoxy resin, phenolic resin 20kg, polyimide resin 9kg, Firebrake ZB
10kg, trimethylolpropane 70kg, benzoyl peroxide 20kg, PTPP (potassium tripolyphosphate) 9kg, nano titanium oxide 1.5kg, mica powder
12kg and zirconium oxide 10kg mixing 3h, then cooling prepares high-temperature-resistant insulating paint compositions A3.Wherein, sodium rice titanium dioxide
Particle diameter is 10nm, and the particle diameter of mica powder is 0.15mm.
At 30 DEG C, this high-temperature-resistant insulating paint compositions brushing is formed paint film, this paint on the inside and outside wall of transformator
The high temperature resistant parameter of film, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Embodiment 4
Carry out according to the method for embodiment 1, except that, bisphenol A type epoxy resin is changed to bisphenol f type epoxy resin,
Zirconium oxide is changed to antimony oxide, prepares high-temperature-resistant insulating paint compositions A4.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Embodiment 5
Carry out according to the method for embodiment 1, except that, bisphenol A type epoxy resin is changed to bisphenol f type epoxy resin,
Mica powder is changed to Pulvis Talci, prepares high-temperature-resistant insulating paint compositions A5.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 1
Carry out according to the method for embodiment 1, except that, bisphenol A type epoxy resin is 5kg, prepares high-temperature insulation
Coating composition B1.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 2
Carry out according to the method for embodiment 1, except that, bisphenol A type epoxy resin is 25kg, prepares high-temperature insulation
Coating composition B2.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 3
Carry out according to the method for embodiment 1, except that, polyimide resin is 4kg, prepares high-temperature-resistant insulating paint
Compositions B3.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 4
Carry out according to the method for embodiment 1, except that, polyimide resin is 12kg, prepares high-temperature insulation and is coated with
Feed composition B4.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 5
Carry out according to the method for embodiment 1, except that, do not contain nano titanium oxide, prepare high-temperature insulation and be coated with
Feed composition B5.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 6
Carry out according to the method for embodiment 1, except that, nano titanium oxide is 3kg, prepares high-temperature-resistant insulating paint
Compositions B6.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 7
Carry out according to the method for embodiment 1, except that, benzoyl peroxide is 5kg, prepares high-temperature-resistant insulating paint
Compositions B7.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 8
Carry out according to the method for embodiment 1, except that, benzoyl peroxide is 25kg, prepares high-temperature insulation and is coated with
Feed composition B8.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 9
Carry out according to the method for embodiment 1, except that, trimethylolpropane is 30kg, prepares high-temperature insulation and is coated with
Feed composition B9.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 10
Carry out according to the method for embodiment 1, except that, trimethylolpropane is 80kg, prepares high-temperature insulation and is coated with
Feed composition B10.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 11
Carry out according to the method for embodiment 1, except that, PTPP (potassium tripolyphosphate) is 1kg, and Firebrake ZB is 15kg, prepares resistance to
High-temperature insulating paint compositions B11.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 12
Carry out according to the method for embodiment 1, except that, PTPP (potassium tripolyphosphate) is 12kg, and Firebrake ZB is 4kg, prepares resistance to
High-temperature insulating paint combination B 12.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant
Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Table 1
|
High temperature resistant (500 DEG C) |
Breakdown strength (KV/m) |
Specific insulation (104Ω m) |
A1 |
Paint film is normal |
175 |
1.81 |
A2 |
Paint film is normal |
170 |
1.70 |
A3 |
Paint film is normal |
168 |
1.65 |
A4 |
Paint film is normal |
164 |
1.68 |
A5 |
Paint film is normal |
172 |
1.75 |
B1 |
Coming off occurs in paint film |
130 |
1.35 |
B2 |
Coming off occurs in paint film |
140 |
1.27 |
B3 |
Coming off occurs in paint film |
130 |
1.28 |
B4 |
Coming off occurs in paint film |
135 |
1.19 |
B5 |
Coming off occurs in paint film |
128 |
1.22 |
B6 |
Coming off occurs in paint film |
127 |
1.24 |
B7 |
Coming off occurs in paint film |
119 |
1.28 |
B8 |
Coming off occurs in paint film |
124 |
1.34 |
B9 |
Coming off occurs in paint film |
108 |
1.32 |
B10 |
Coming off occurs in paint film |
117 |
1.25 |
B11 |
Coming off occurs in paint film |
113 |
1.21 |
B12 |
Coming off occurs in paint film |
126 |
1.19 |
By above-described embodiment and comparative example, the high-temperature insulation transformator that the present invention provides has the resistance to height of excellence
Temperature, breakdown strength and specific insulation, the method step simultaneously processing this transformator is simple, and raw material is easy to get.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple simple variant, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.