CN105255233A - Fireproof high-temperature resistant power transformer shell - Google Patents
Fireproof high-temperature resistant power transformer shell Download PDFInfo
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- CN105255233A CN105255233A CN201510835684.1A CN201510835684A CN105255233A CN 105255233 A CN105255233 A CN 105255233A CN 201510835684 A CN201510835684 A CN 201510835684A CN 105255233 A CN105255233 A CN 105255233A
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Abstract
The invention discloses a fireproof high-temperature resistant power transformer shell. The fireproof high-temperature resistant power transformer shell is formed by welding metal glass fiber reinforced plastic plates, and the inner surface and the outer surface of the shell are both coated with fireproof thermal-insulation paint. The fireproof thermal-insulation paint is prepared from, by mass, 18-28 parts of organic silicon resin, 35-40 parts of modified asphalt, 3-5 parts of glass microbeads, 16-24 parts of titanium dioxide, 18-32 parts of silicon carbide, 22-30 parts of aluminum hydroxide, 15-25 parts of boron nitride, 8-15 parts of magnesium hydrate, 12-16 parts of n-butyl alcohol, 18-26 parts of methyl acrylate, 3-5 parts of butyl ester, 4-6 parts of dispersing agents, 2-4 parts of coupling agents and 6-14 parts of curing agents. The fireproof thermal-insulation paint has the advantages of being excellent in flame retardant property, thermal dissipation capability and adhesive force, lighter in color, high in gloss, high in photo-thermal reflectivity and the like, and the fireproof thermal-insulation paint can be resistant to yellowing and free of paint peeling even under a high-temperature environment for a long time.
Description
Technical field
The present invention relates to transformer equipment field, specifically a kind of electrical transformer tank of fire-proof high-temperature resistant.
Background technology
Transformer is used to convert voltage of alternating current, electric current and transmit a kind of static electrical equipment of AC energy.It realizes electrical energy transfer according to the principle of electromagnetic induction.Transformer can be divided into the transformer of power transformer, testing transformer, instrument transformer and special purpose with regard to its purposes; Power transformer is wherein a kind of static electric installation, being used to the voltage of alternating current of a certain numerical value (electric current) to become the equipment of the identical another kind of frequency or the different voltage (electric current) of several numerical value, is also the necessaries of power transmission and distribution, power consumer distribution.
Be in operation, as overload or short circuit occur inside transformer, insulating material or transformer oil will Yin Gaowen or electrical spark effects and decompose, expand so that gasification, inside transformer pressure is sharply increased, transformer casing may be caused to explode, and a large amount of transformer oil ejection burning, oil stream can expand fire hazard again further.Therefore, need the electrical transformer tank studying a kind of fire-proof high-temperature resistant, for promoting the fire resistance of power transformer itself.
Summary of the invention
The object of the present invention is to provide a kind of electrical transformer tank of fire-proof high-temperature resistant, by within it surface and outside surface all apply fire-proof and thermal-insulation paint, make it have excellent flame retardant properties, heat-sinking capability, sticking power, also have that color is more shallow, gloss is high, photothermal reflectance rate advantages of higher, even if also can color inhibition and do not fall paint under long term high temperature environment simultaneously.
For achieving the above object, the invention provides following technical scheme:
The electrical transformer tank of fire-proof high-temperature resistant, described shell is formed by metallic glass steel Plate Welding, the internal surface of described shell, outside surface is coated with fire-proof and thermal-insulation paint, described fire-proof and thermal-insulation paint is prepared from by the raw material of following mass parts: silicone resin 18-28 part, modifying asphalt 35-40 part, glass microballon 3-5 part, titanium dioxide 16-24 part, silicon carbide 18-32 part, aluminium hydroxide 22-30 part, boron nitride 15-25 part, magnesium hydroxide 8-15 part, propyl carbinol 12-16 part, methyl acrylate 18-26 part, butyl ester 3-5 part, dispersion agent 4-6 part, coupling agent 2-4 part, solidifying agent 6-14 part, described modifying asphalt is made up of the raw material of following mass parts: pitch 100-120 part, polyethylene wax 1-1.4 part, wilkinite 1.5-2 part, vinyl chloride-vinyl acetate resin 15-18 part, maleic anhydride 5-5.5 part, Potassium aluminum sulfate dodecahydrate 0.2-0.3 part, dibenzoyl peroxide 0.1-0.12 part, sodium lignosulfonate 0.55-0.7 part, the preparation method of described modifying asphalt, comprise the following steps: 1) by asphalt heating to melting, under the protection of nitrogen, slowly add maleic anhydride and dibenzoyl peroxide, temperature is controlled at 170-180 DEG C, stir 1.5-2h under 300-500r/min rotating speed after, obtain modifying asphalt, 2) vinyl chloride-vinyl acetate resin, polyethylene wax are mixed and heated to 155-162 DEG C, then it are mixed with modifying asphalt, 3) wilkinite and Potassium aluminum sulfate dodecahydrate is then added, and with agitation grinding 0.5-1 hour under 1000-1500r/min rotating speed.
As the further scheme of the present invention: described silicone resin is methylpolysiloxane resin or methyl phenyl silicone resin.
As the further scheme of the present invention: the particle diameter of described silicon carbide is 0.5-15um; The particle diameter of described aluminium hydroxide is 1-25um; The particle diameter of described boron nitride is 0.5-8um; The particle diameter of described magnesium hydroxide is 0.5-5um.
As the further scheme of the present invention: described dispersion agent is the mixture of one or more in polyacrylamide, sodium lauryl sulphate, methyl amyl alcohol.
As the further scheme of the present invention: described coupling agent is the mixture of one or more in Silane coupling agent KH550, silane coupling agent KH560, silane coupling agent KH570, silane coupling agent KH792.
As the further scheme of the present invention: described solidifying agent is the mixture of one or more in aminoresin, acid anhydrides, resole.
As the further scheme of the present invention: the preparation method of described fire-proof and thermal-insulation paint, comprise the following steps: add successively in proportion in silicone resin, modifying asphalt, glass microballon, titanium dioxide, silicon carbide, aluminium hydroxide, boron nitride, magnesium hydroxide, propyl carbinol, methyl acrylate, butyl ester, dispersion agent, coupling agent to a mixing bowl and be uniformly dispersed, be ground to less than 50 μm with sand mill again, obtain mixture; Then add solidifying agent in proportion in mixture, mix, obtain fire-proof and thermal-insulation paint.
As the further scheme of the present invention: the internal surface this fire-proof and thermal-insulation paint being coated on shell, coating thickness is 30-38 μm, after placing 30-35min at ambient temperature, namely curable; Then this fire-proof and thermal-insulation paint is coated on the outside surface of shell, coating thickness is 25-35 μm, after placing 50-60min at ambient temperature, namely curable; 5-8min is toasted under the shell finally internal surface and outside surface being coated with fire-proof and thermal-insulation paint is placed in 150-165 DEG C of temperature.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is by being coated with fire-proof and thermal-insulation paint at the internal surface of shell and outside surface, this fire-proof and thermal-insulation paint has excellent flame retardant properties, heat-sinking capability, sticking power, also have that color is more shallow, gloss is high, photothermal reflectance rate advantages of higher, even if also can color inhibition and do not fall paint under long term high temperature environment simultaneously.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, the electrical transformer tank of fire-proof high-temperature resistant, shell is formed by metallic glass steel Plate Welding, the internal surface of shell, outside surface are coated with fire-proof and thermal-insulation paint, and fire-proof and thermal-insulation paint is prepared from by the raw material of following mass parts: methylpolysiloxane resin 18 parts, modifying asphalt 40 parts, glass microballon 3 parts, titanium dioxide 24 parts, 18 parts, silicon carbide, 30 parts, aluminium hydroxide, boron nitride 15 parts, magnesium hydroxide 15 parts, propyl carbinol 12 parts, methyl acrylate 26 parts, butyl ester 3 parts, polyacrylamide 6 parts, Silane coupling agent KH550 2 parts, 14 parts, acid anhydrides; Modifying asphalt is made up of the raw material of following mass parts: pitch 100 parts, polyethylene wax 1.4 parts, wilkinite 1.5 parts, vinyl chloride-vinyl acetate resin 18 parts, maleic anhydride 5 parts, Potassium aluminum sulfate dodecahydrate 0.3 part, dibenzoyl peroxide 0.1 part, sodium lignosulfonate 0.7 part, its preparation method, comprise the following steps: 1) by asphalt heating to melting, maleic anhydride and dibenzoyl peroxide is slowly added under the protection of nitrogen, temperature is controlled at 170 DEG C, stir 1.5h under 500r/min rotating speed after, obtain modifying asphalt; 2) vinyl chloride-vinyl acetate resin, polyethylene wax are mixed and heated to 162 DEG C, then it are mixed with modifying asphalt; 3) wilkinite and Potassium aluminum sulfate dodecahydrate is then added, and with agitation grinding under 1500r/min rotating speed 0.5 hour.
The preparation method of described fire-proof and thermal-insulation paint, comprise the following steps: add successively in proportion in methylpolysiloxane resin, modifying asphalt, glass microballon, titanium dioxide, silicon carbide, aluminium hydroxide, boron nitride, magnesium hydroxide, propyl carbinol, methyl acrylate, butyl ester, polyacrylamide, Silane coupling agent KH550 to a mixing bowl and be uniformly dispersed, be ground to less than 50 μm with sand mill again, obtain mixture; Then add acid anhydrides in proportion in mixture, mix, obtain fire-proof and thermal-insulation paint.
This fire-proof and thermal-insulation paint is coated on the internal surface of shell, coating thickness is 30 μm, after placing 30min at ambient temperature, namely curable; Then this fire-proof and thermal-insulation paint is coated on the outside surface of shell, coating thickness is 25 μm, after placing 50min at ambient temperature, namely curable; 5min is toasted under the shell finally internal surface and outside surface being coated with fire-proof and thermal-insulation paint is placed in 150 DEG C of temperature.
Embodiment 2
In the embodiment of the present invention, the electrical transformer tank of fire-proof high-temperature resistant, shell is formed by metallic glass steel Plate Welding, the internal surface of shell, outside surface is coated with fire-proof and thermal-insulation paint, fire-proof and thermal-insulation paint is prepared from by the raw material of following mass parts: methylpolysiloxane resin 23 parts, modifying asphalt 38 parts, glass microballon 4 parts, titanium dioxide 20 parts, 24 parts, silicon carbide, 26 parts, aluminium hydroxide, boron nitride 20 parts, magnesium hydroxide 11 parts, propyl carbinol 14 parts, methyl acrylate 22 parts, butyl ester 4 parts, sodium lauryl sulphate 5 parts, silane coupling agent KH5603 part, 10 parts, aminoresin, modifying asphalt is made up of the raw material of following mass parts: pitch 110 parts, polyethylene wax 1.2 parts, wilkinite 1.8 parts, vinyl chloride-vinyl acetate resin 16 parts, maleic anhydride 5.2 parts, Potassium aluminum sulfate dodecahydrate 0.25 part, dibenzoyl peroxide 0.11 part, sodium lignosulfonate 0.62 part, its preparation method, comprise the following steps: 1) by asphalt heating to melting, maleic anhydride and dibenzoyl peroxide is slowly added under the protection of nitrogen, temperature is controlled at 175 DEG C, stir 1.8h under 400r/min rotating speed after, obtain modifying asphalt, 2) vinyl chloride-vinyl acetate resin, polyethylene wax are mixed and heated to 158 DEG C, then it are mixed with modifying asphalt, 3) wilkinite and Potassium aluminum sulfate dodecahydrate is then added, and with agitation grinding under 1200r/min rotating speed 0.8 hour.
The preparation method of described fire-proof and thermal-insulation paint, comprise the following steps: add successively in proportion in methylpolysiloxane resin, modifying asphalt, glass microballon, titanium dioxide, silicon carbide, aluminium hydroxide, boron nitride, magnesium hydroxide, propyl carbinol, methyl acrylate, butyl ester, sodium lauryl sulphate, silane coupling agent KH560 to a mixing bowl and be uniformly dispersed, be ground to less than 50 μm with sand mill again, obtain mixture; Then add aminoresin in proportion in mixture, mix, obtain fire-proof and thermal-insulation paint.
This fire-proof and thermal-insulation paint is coated on the internal surface of shell, coating thickness is 35 μm, after placing 32min at ambient temperature, namely curable; Then this fire-proof and thermal-insulation paint is coated on the outside surface of shell, coating thickness is 30 μm, after placing 55min at ambient temperature, namely curable; 6min is toasted under the shell finally internal surface and outside surface being coated with fire-proof and thermal-insulation paint is placed in 160 DEG C of temperature.
Embodiment 3
In the embodiment of the present invention, the electrical transformer tank of fire-proof high-temperature resistant, shell is formed by metallic glass steel Plate Welding, the internal surface of shell, outside surface is coated with fire-proof and thermal-insulation paint, fire-proof and thermal-insulation paint is prepared from by the raw material of following mass parts: methyl phenyl silicone resin 28 parts, modifying asphalt 35 parts, glass microballon 5 parts, titanium dioxide 16 parts, 32 parts, silicon carbide, 22 parts, aluminium hydroxide, boron nitride 25 parts, magnesium hydroxide 8 parts, propyl carbinol 16 parts, methyl acrylate 18 parts, butyl ester 5 parts, methyl amyl alcohol 4 parts, silane coupling agent KH7924 part, resole 6 parts, modifying asphalt is made up of the raw material of following mass parts: pitch 120 parts, polyethylene wax 1 part, wilkinite 2 parts, vinyl chloride-vinyl acetate resin 15 parts, maleic anhydride 5.5 parts, Potassium aluminum sulfate dodecahydrate 0.2 part, dibenzoyl peroxide 0.12 part, sodium lignosulfonate 0.55 part, its preparation method, comprise the following steps: 1) by asphalt heating to melting, maleic anhydride and dibenzoyl peroxide is slowly added under the protection of nitrogen, temperature is controlled at 180 DEG C, stir 2h under 300r/min rotating speed after, obtain modifying asphalt, 2) vinyl chloride-vinyl acetate resin, polyethylene wax are mixed and heated to 155 DEG C, then it are mixed with modifying asphalt, 3) wilkinite and Potassium aluminum sulfate dodecahydrate is then added, and with agitation grinding under 1000r/min rotating speed 1 hour.
The preparation method of described fire-proof and thermal-insulation paint, comprise the following steps: add successively in proportion in methyl phenyl silicone resin, modifying asphalt, glass microballon, titanium dioxide, silicon carbide, aluminium hydroxide, boron nitride, magnesium hydroxide, propyl carbinol, methyl acrylate, butyl ester, methyl amyl alcohol, silane coupling agent KH792 to a mixing bowl and be uniformly dispersed, be ground to less than 50 μm with sand mill again, obtain mixture; Then add resole in proportion in mixture, mix, obtain fire-proof and thermal-insulation paint.
This fire-proof and thermal-insulation paint is coated on the internal surface of shell, coating thickness is 38 μm, after placing 35min at ambient temperature, namely curable; Then this fire-proof and thermal-insulation paint is coated on the outside surface of shell, coating thickness is 35 μm, after placing 60min at ambient temperature, namely curable; 8min is toasted under the shell finally internal surface and outside surface being coated with fire-proof and thermal-insulation paint is placed in 165 DEG C of temperature.
The present invention is by being coated with fire-proof and thermal-insulation paint at the internal surface of shell and outside surface, this fire-proof and thermal-insulation paint has excellent flame retardant properties, heat-sinking capability, sticking power, also have that color is more shallow, gloss is high, photothermal reflectance rate advantages of higher, even if also can color inhibition and do not fall paint under long term high temperature environment simultaneously.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (8)
1. the electrical transformer tank of fire-proof high-temperature resistant, described shell is formed by metallic glass steel Plate Welding, it is characterized in that, the internal surface of described shell, outside surface is coated with fire-proof and thermal-insulation paint, described fire-proof and thermal-insulation paint is prepared from by the raw material of following mass parts: silicone resin 18-28 part, modifying asphalt 35-40 part, glass microballon 3-5 part, titanium dioxide 16-24 part, silicon carbide 18-32 part, aluminium hydroxide 22-30 part, boron nitride 15-25 part, magnesium hydroxide 8-15 part, propyl carbinol 12-16 part, methyl acrylate 18-26 part, butyl ester 3-5 part, dispersion agent 4-6 part, coupling agent 2-4 part, solidifying agent 6-14 part, described modifying asphalt is made up of the raw material of following mass parts: pitch 100-120 part, polyethylene wax 1-1.4 part, wilkinite 1.5-2 part, vinyl chloride-vinyl acetate resin 15-18 part, maleic anhydride 5-5.5 part, Potassium aluminum sulfate dodecahydrate 0.2-0.3 part, dibenzoyl peroxide 0.1-0.12 part, sodium lignosulfonate 0.55-0.7 part, the preparation method of described modifying asphalt, comprise the following steps: 1) by asphalt heating to melting, under the protection of nitrogen, slowly add maleic anhydride and dibenzoyl peroxide, temperature is controlled at 170-180 DEG C, stir 1.5-2h under 300-500r/min rotating speed after, obtain modifying asphalt, 2) vinyl chloride-vinyl acetate resin, polyethylene wax are mixed and heated to 155-162 DEG C, then it are mixed with modifying asphalt, 3) wilkinite and Potassium aluminum sulfate dodecahydrate is then added, and with agitation grinding 0.5-1 hour under 1000-1500r/min rotating speed.
2. the electrical transformer tank of fire-proof high-temperature resistant according to claim 1, is characterized in that, described silicone resin is methylpolysiloxane resin or methyl phenyl silicone resin.
3. the electrical transformer tank of fire-proof high-temperature resistant according to claim 1, is characterized in that, the particle diameter of described silicon carbide is 0.5-15um; The particle diameter of described aluminium hydroxide is 1-25um; The particle diameter of described boron nitride is 0.5-8um; The particle diameter of described magnesium hydroxide is 0.5-5um.
4. the electrical transformer tank of fire-proof high-temperature resistant according to claim 1, is characterized in that, described dispersion agent is the mixture of one or more in polyacrylamide, sodium lauryl sulphate, methyl amyl alcohol.
5. the electrical transformer tank of fire-proof high-temperature resistant according to claim 1, it is characterized in that, described coupling agent is the mixture of one or more in Silane coupling agent KH550, silane coupling agent KH560, silane coupling agent KH570, silane coupling agent KH792.
6. the electrical transformer tank of fire-proof high-temperature resistant according to claim 1, is characterized in that, described solidifying agent is the mixture of one or more in aminoresin, acid anhydrides, resole.
7. according to the electrical transformer tank of the arbitrary described fire-proof high-temperature resistant of claim 1-6, it is characterized in that, the preparation method of described fire-proof and thermal-insulation paint, comprise the following steps: add successively in proportion in silicone resin, modifying asphalt, glass microballon, titanium dioxide, silicon carbide, aluminium hydroxide, boron nitride, magnesium hydroxide, propyl carbinol, methyl acrylate, butyl ester, dispersion agent, coupling agent to a mixing bowl and be uniformly dispersed, be ground to less than 50 μm with sand mill again, obtain mixture; Then add solidifying agent in proportion in mixture, mix, obtain fire-proof and thermal-insulation paint.
8. the electrical transformer tank of fire-proof high-temperature resistant according to claim 7, is characterized in that, this fire-proof and thermal-insulation paint is coated on the internal surface of shell, and coating thickness is 30-38 μm, after placing 30-35min at ambient temperature, namely curable; Then this fire-proof and thermal-insulation paint is coated on the outside surface of shell, coating thickness is 25-35 μm, after placing 50-60min at ambient temperature, namely curable; 5-8min is toasted under the shell finally internal surface and outside surface being coated with fire-proof and thermal-insulation paint is placed in 150-165 DEG C of temperature.
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| CN201510835684.1A CN105255233A (en) | 2015-11-25 | 2015-11-25 | Fireproof high-temperature resistant power transformer shell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510835684.1A CN105255233A (en) | 2015-11-25 | 2015-11-25 | Fireproof high-temperature resistant power transformer shell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106783045A (en) * | 2017-03-16 | 2017-05-31 | 江西亿晟电气有限责任公司 | A kind of horizontal integration pole type transformer platform for collecting power transformation box and comprehensive distribution box composition |
| CN108538540A (en) * | 2018-03-28 | 2018-09-14 | 合肥云智物联科技有限公司 | Desert area protection equipment for transformer and its control method |
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Patent Citations (5)
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| DE202013102414U1 (en) * | 2013-06-05 | 2014-09-08 | René Scheitenberger | Multi-component kit for producing a room-filling elastic structural mass as end product |
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Application publication date: 20160120 |