CN113865741A - Insulation temperature sensing and phase color identification method for electrical equipment - Google Patents
Insulation temperature sensing and phase color identification method for electrical equipment Download PDFInfo
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- CN113865741A CN113865741A CN202111128912.3A CN202111128912A CN113865741A CN 113865741 A CN113865741 A CN 113865741A CN 202111128912 A CN202111128912 A CN 202111128912A CN 113865741 A CN113865741 A CN 113865741A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000009413 insulation Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 126
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 15
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 92
- 239000000203 mixture Substances 0.000 claims description 88
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 81
- 238000002156 mixing Methods 0.000 claims description 74
- 230000008859 change Effects 0.000 claims description 44
- 238000006243 chemical reaction Methods 0.000 claims description 44
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- ZQBAKBUEJOMQEX-UHFFFAOYSA-N phenyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=CC=C1 ZQBAKBUEJOMQEX-UHFFFAOYSA-N 0.000 claims description 24
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 22
- 238000000227 grinding Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 14
- 229920001684 low density polyethylene Polymers 0.000 claims description 14
- 239000004702 low-density polyethylene Substances 0.000 claims description 14
- 239000000314 lubricant Substances 0.000 claims description 14
- 239000003381 stabilizer Substances 0.000 claims description 14
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 claims description 12
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 12
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 12
- 229960000969 phenyl salicylate Drugs 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 claims description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 241000692870 Inachis io Species 0.000 claims description 5
- 238000007605 air drying Methods 0.000 claims description 4
- 238000000498 ball milling Methods 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000000967 suction filtration Methods 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- -1 silicate ester Chemical class 0.000 claims description 2
- 230000008439 repair process Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to an insulation temperature-sensing and phase color identification method for power equipment, which adopts a detection sleeve, a temperature-change material, a heat-conducting silica gel pad, an acrylic glass plate and an identification sticker.
Description
Technical Field
The invention relates to the technical field of maintenance of electrical equipment, in particular to an insulation temperature sensing and phase color identification method for electrical equipment.
Background
Cable run and overhead line trouble often are caused by generating heat, like cable elbow type head, cable middle head, overhead line middle head, cable terminal, transformer pile head, fastener junction, circuit and equipment junction etc. adopt the remote temperature measurement of thermoscope to measure temperature and can not discover whole problems, and after differentiated operation and maintenance strategy was carried out, the point that generates heat can not obtain real-time supervision, the monitoring instrument installation price is expensive, operation and maintenance cost is higher, simultaneously, the temperature difference of same point that generates heat inside and outside, only rely on current means can not discover current problem.
In summary, the present invention provides an insulation temperature sensing and phase color identification method for electrical equipment to solve the existing problems.
Disclosure of Invention
The present invention is directed to a method for identifying an insulation temperature sensing and phase color of an electrical device, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
an insulation temperature sensing and phase color identification method for electrical equipment adopts a detection sleeve, a temperature change material, a heat conduction silica gel pad, an acrylic glass plate and an identification sticker, and comprises the following steps:
s1, forming through grooves in the front and back of the detection sleeve by using a grooving machine, polishing the acrylic glass plate and the temperature change material by using a polisher respectively to enable the shapes of the acrylic glass plate and the temperature change material to be matched with the shapes of the through grooves, and installing the heat-conducting silica gel pad on the inner wall of the detection sleeve by using glue;
s2, placing the temperature change material in the through groove, fixedly installing the acrylic glass plate in the through groove, spraying insulating paint on the outer wall of the detection sleeve by using a spray gun, and finally pasting the corresponding identification sticker on the outer wall of the detection sleeve;
and S3, installing a proper detection sleeve on the cable of the overhead line, and judging the temperature of the cable according to the color of the temperature change material in the through groove during maintenance.
In a preferred embodiment of the present invention, the temperature-change material is prepared by mixing a color-changing dye, a color-developing agent, ethyl acetate, bismuth oxide, phenyl salicylate, low-density polyethylene, a stabilizer, acetone, a lubricant, and a filler, and the components are, by weight: 200-300 parts of color-changing dye, 250-400 parts of color-developing agent, 1000-1200 parts of ethyl acetate, 100-200 parts of bismuth oxide, 150-200 parts of phenyl salicylate, 500-800 parts of low-density polyethylene, 50-75 parts of stabilizer, 100-120 parts of acetone, 30-45 parts of lubricant and 80-90 parts of filler.
As a preferable scheme of the invention, the preparation method of the temperature change material comprises the following steps:
s11, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 120-150 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material A;
s12, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 90-120 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material B;
s13, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 70-90 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material C;
s14, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 50-70 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material D;
s15, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 30-50 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material E;
s16, adding the color-changing material A, the color-changing material B, the color-changing material C, the color-changing material D and the color-changing material E into a reaction kettle, raising the temperature to 100-110 ℃, stirring and mixing for 30-50 min by using an electric stirrer, sequentially adding phenyl salicylate, a stabilizer, a lubricant and a filler, and stirring for 30-40 min again to obtain color-changing material powder;
s17, preheating a heating kettle to 180 ℃, putting bismuth oxide into the heating kettle, heating to 250-280 ℃, calcining for 70-90 min, taking out to obtain light yellow powder, putting titanium dioxide into a ball mill, ball-milling for 10-15 min, taking out, and fully and uniformly mixing with the light yellow powder to obtain a mixture;
s18, adding the color-changing material powder and the mixture into an acetone solution, heating to 24-28 ℃ at a heating speed of 6-7 ℃/min, stirring, uniformly mixing, cooling to-5-1 ℃, performing suction filtration, drying the filter residue with hot air, feeding the filter residue and low-density polyethylene into a double-screw extruder for extrusion granulation, and then cooling and air-drying to obtain the temperature-changing material.
In a preferred embodiment of the present invention, the discoloring material a in S11 is milky white at normal temperature and turns purple at a high temperature of 120 to 150 ℃.
In a preferred embodiment of the present invention, the discoloring material B in S12 is milky white at normal temperature, and turns to a reddish color at a high temperature of 90 to 120 ℃.
In a preferred embodiment of the present invention, the discoloring material C in S13 is milk white at normal temperature, and turns orange yellow at a high temperature of 70 to 90 ℃.
In a preferred embodiment of the present invention, the discoloring material D in S14 is milk white at normal temperature, and turns into peacock green at a high temperature of 50 to 70 ℃.
In a preferred embodiment of the present invention, the discoloring material E in S15 is milky white at normal temperature, and turns to a blue-ish color at a temperature of 30 to 50 ℃.
In a preferred embodiment of the present invention, the stabilizer is organotin, the lubricant is silicate, the filler is carbon black, and the low density polyethylene has a density of 0.89 to 0.91 g/cm.
As a preferable scheme of the invention, the identification sticker is divided into three types, namely yellow identification sticker, green identification sticker and red identification sticker, and the yellow identification sticker, the green identification sticker and the red identification sticker respectively correspond to ABC three-phase lines on the overhead line.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the detection sleeve and the temperature change material are arranged, the temperature change material is milky white at normal temperature, and can present different colors at different temperatures, so that a worker can know the temperature of the cable in the detection sleeve only by looking up the color of the temperature change material during maintenance, the detection cost is low, different temperature color changes at different positions of different equipment are obvious, non-operation and maintenance personnel can identify heating points, the possibility of line defect development is reduced, and the accuracy of line fault inspection is improved.
2. According to the invention, through setting the identification stickers with different colors, the detection sleeve pasted with the identification stickers with three colors of yellow, green and red can effectively distinguish the ABC three-phase lines on the overhead line, reduce the risk of line commissioning, ensure accurate fault repair information during operation and fault inspection, and ensure accurate repair position of the repair personnel during field work.
3. According to the invention, the bismuth oxide which is calcined and modified is arranged in the temperature change material, so that the temperature change material can absorb part of ultraviolet rays in practical application, the added phenyl salicylate can filter part of ultraviolet ray energy, the temperature change material is prevented from being damaged by the ultraviolet rays, and meanwhile, the temperature change material is physically protected by adding the ball-milled nano titanium dioxide, so that the service life of the temperature change material is effectively prolonged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The invention discloses an insulation temperature sensing and phase color identification method for electrical equipment, which comprises a detection sleeve, a temperature change material, a heat conduction silica gel pad, an acrylic glass plate and an identification sticker, and comprises the following steps:
s1, forming through grooves in the front and back of the detection sleeve by using a grooving machine, polishing the acrylic glass plate and the temperature change material by using a polisher respectively to enable the shapes of the acrylic glass plate and the temperature change material to be matched with the shapes of the through grooves, and installing the heat-conducting silica gel pad on the inner wall of the detection sleeve by using glue;
s2, placing the temperature change material in the through groove, fixedly installing the acrylic glass plate in the through groove, spraying insulating paint on the outer wall of the detection sleeve by using a spray gun, and finally pasting the corresponding identification sticker on the outer wall of the detection sleeve;
and S3, installing a proper detection sleeve on the cable of the overhead line, and judging the temperature of the cable by an operator according to the color of the temperature change material in the through groove during maintenance.
Further, the temperature-change material is prepared by mixing a color-changing dye, a color developing agent, ethyl acetate, bismuth oxide, phenyl salicylate, low-density polyethylene, a stabilizer, acetone, a lubricant and a filler, and the components are as follows according to the weight ratio: 200-300 parts of color-changing dye, 250-400 parts of color-developing agent, 1000-1200 parts of ethyl acetate, 100-200 parts of bismuth oxide, 150-200 parts of phenyl salicylate, 500-800 parts of low-density polyethylene, 50-75 parts of stabilizer, 100-120 parts of acetone, 30-45 parts of lubricant and 80-90 parts of filler.
Further, the preparation method of the temperature change material comprises the following steps:
s11, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 120-150 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material A;
s12, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 90-120 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material B;
s13, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 70-90 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material C;
s14, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 50-70 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material D;
s15, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 30-50 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material E;
s16, adding the color-changing material A, the color-changing material B, the color-changing material C, the color-changing material D and the color-changing material E into a reaction kettle, raising the temperature to 100-110 ℃, stirring and mixing for 30-50 min by using an electric stirrer, sequentially adding phenyl salicylate, a stabilizer, a lubricant and a filler, and stirring for 30-40 min again to obtain color-changing material powder;
s17, preheating a heating kettle to 180 ℃, putting bismuth oxide into the heating kettle, heating to 250-280 ℃, calcining for 70-90 min, taking out to obtain light yellow powder, putting titanium dioxide into a ball mill, ball-milling for 10-15 min, taking out, and fully and uniformly mixing with the light yellow powder to obtain a mixture;
s18, adding the color-changing material powder and the mixture into an acetone solution, heating to 24-28 ℃ at a heating speed of 6-7 ℃/min, stirring, uniformly mixing, cooling to-5-1 ℃, performing suction filtration, drying the filter residue with hot air, feeding the filter residue and low-density polyethylene into a double-screw extruder for extrusion granulation, and then cooling and air-drying to obtain the temperature-changing material.
Further, the color-changing material A in the S11 is milk white at normal temperature and can be changed into purple at a high temperature of 120-150 ℃.
Further, the color-changing material B in the S12 is milk white at normal temperature and can turn into scarlet at the high temperature of 90-120 ℃.
Further, the discoloring material C in S13 is milk white at normal temperature and turns orange yellow at a high temperature of 70 to 90 ℃.
Further, the color-changing material D in the S14 is milk white at normal temperature, and can be changed into peacock green at the high temperature of 50-70 ℃.
Further, the color-changing material E in the S15 is milk white at normal temperature and can be changed into blue at the temperature of 30-50 ℃.
Further, the stabilizer is organic tin, the lubricant is silicate ester, the filler is carbon black, and the density of the low-density polyethylene is 0.89-0.91 g/cm.
Further, the sign sticker divide into three kinds of yellow sign sticker, green sign sticker and red sign sticker, and yellow sign sticker, green sign sticker and red sign sticker correspond ABC three-phase line on the overhead line respectively.
Detailed description of the preferred embodiments
Weighing 300 parts of color-changing dye, 400 parts of color developing agent, 1200 parts of ethyl acetate, 200 parts of bismuth oxide, 200 parts of phenyl salicylate, 800 parts of low-density polyethylene, 75 parts of stabilizer, 120 parts of acetone, 45 parts of lubricant and 90 parts of filler;
taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 170 ℃, the stirring and mixing rotating speed is 450r/min, reducing the temperature to 120-150 ℃ after the stirring is finished, preserving the temperature for 50min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material A;
taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 170 ℃, the stirring and mixing rotating speed is 450r/min, reducing the temperature to 90-120 ℃ after the stirring is finished, preserving the temperature for 50min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material B;
taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 170 ℃, the stirring and mixing rotating speed is 450r/min, reducing the temperature to 70-90 ℃ after the stirring is finished, preserving the temperature for 50min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material C;
taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 170 ℃, the stirring and mixing rotating speed is 450r/min, reducing the temperature to 50-70 ℃ after the stirring is finished, preserving the temperature for 50min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material D;
taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 170 ℃, the stirring and mixing rotating speed is 450r/min, reducing the temperature to 30-50 ℃ after the stirring is finished, preserving the temperature for 50min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material E;
adding the color-changing material A, the color-changing material B, the color-changing material C, the color-changing material D and the color-changing material E into a reaction kettle, raising the temperature to 110 ℃, stirring and mixing for 50min by using an electric stirrer, sequentially adding phenyl salicylate, a stabilizer, a lubricant and a filler, stirring for 40min again to obtain color-changing material powder, preheating the heating kettle to 180 ℃, adding bismuth oxide into the heating kettle, raising the temperature to 280 ℃, calcining for 90min, taking out to obtain light yellow powder, placing titanium dioxide into a ball mill, ball-milling for 15min, taking out, fully and uniformly mixing with the light yellow powder to obtain a mixture, adding the color-changing material powder and the mixture into an acetone solution, raising the temperature to 28 ℃ at the temperature raising speed of 7 ℃/min, stirring uniformly, cooling to-5-1 ℃, carrying out suction filtration, drying filter residues by hot air, then sending the filter residues and low-density polyethylene into a double-screw extruder for extrusion granulation, then cooling and air drying to obtain a temperature change material;
the method comprises the following steps of (1) forming through grooves in the front and the back of a detection sleeve by using a grooving machine, polishing an acrylic glass plate and a temperature-change material by using a polisher respectively to enable the shapes of the acrylic glass plate and the temperature-change material to be matched with the shapes of the through grooves, mounting a heat-conducting silica gel pad on the inner wall of the detection sleeve by using glue, placing the temperature-change material in the through grooves, fixedly mounting the acrylic glass plate in the through grooves, spraying insulating paint on the outer wall of the detection sleeve by using a spray gun, finally pasting corresponding identification stickers on the outer wall of the detection sleeve, and mounting a proper detection sleeve on a cable of an overhead line;
during maintenance, a worker judges the temperature of the cable according to the color of the temperature change material in the through groove, when the temperature of the cable is normal temperature, the temperature change material in the through groove is carbon black, when the temperature of the cable rises to 30-50 ℃, heat in the cable is transferred to the temperature change material through the heat-conducting silica gel pad, the color change material E in the temperature change material is converted into blue, and when the cable is maintained, the color of the temperature change material in the detection sleeve is seen by the worker to be blue;
when the temperature of the cable rises to 30-50 ℃, the heat in the cable is transferred to the temperature-changing material through the heat-conducting silica gel pad, the color-changing material E in the temperature-changing material is converted into blue, and when the cable is overhauled, a worker can see that the color of the temperature-changing material in the detection sleeve is blue;
when the temperature of the cable rises to 50-70 ℃, heat in the cable can be transferred to the temperature-change material through the heat-conducting silica gel pad, the color-change material D in the temperature-change material can be converted into peacock green, and the color of the temperature-change material in the detection sleeve, which is seen by a worker during maintenance, is peacock green;
when the temperature of the cable rises to 70-90 ℃, the heat in the cable is transferred to the temperature-change material through the heat-conducting silica gel pad, the color-change material C in the temperature-change material is converted into orange yellow, and the color of the temperature-change material in the detection sleeve is orange yellow when a worker examines and repairs the cable;
when the temperature of the cable rises to 90-120 ℃, heat in the cable can be transferred to the temperature change material through the heat-conducting silica gel pad, the color change material B in the temperature change material can be turned into large red, and the color of the temperature change material in the detection sleeve, which is seen by a worker during maintenance, is large red;
when the temperature of the cable rises to 120-150 ℃, heat in the cable is transferred to the temperature change material through the heat-conducting silica gel pad, the color change material A in the temperature change material is converted into purple, and a worker can detect that the color of the temperature change material in the sleeve is purple when overhauling is carried out;
the worker knows the current temperature of the cable by detecting the color change of the temperature change material in the sleeve.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An insulation temperature sensing and phase color identification method for electrical equipment is characterized by comprising the following steps: the method comprises the following steps:
s1, forming through grooves in the front and back of the detection sleeve by using a grooving machine, polishing the acrylic glass plate and the temperature change material by using a polisher respectively to enable the shapes of the acrylic glass plate and the temperature change material to be matched with the shapes of the through grooves, and installing the heat-conducting silica gel pad on the inner wall of the detection sleeve by using glue;
s2, placing the temperature change material in the through groove, fixedly installing the acrylic glass plate in the through groove, spraying insulating paint on the outer wall of the detection sleeve by using a spray gun, and finally pasting the corresponding identification sticker on the outer wall of the detection sleeve;
and S3, installing a proper detection sleeve on the cable of the overhead line, and judging the temperature of the cable according to the color of the temperature change material in the through groove during maintenance.
2. The method for identifying the insulated temperature-sensing and phase-color of the electrical equipment according to claim 1, wherein the method comprises the following steps: the temperature change material is prepared by mixing a color change dye, a color developing agent, ethyl acetate, bismuth oxide, phenyl salicylate, low-density polyethylene, a stabilizer, acetone, a lubricant and a filler, and the components are as follows by weight: 200-300 parts of color-changing dye, 250-400 parts of color-developing agent, 1000-1200 parts of ethyl acetate, 100-200 parts of bismuth oxide, 150-200 parts of phenyl salicylate, 500-800 parts of low-density polyethylene, 50-75 parts of stabilizer, 100-120 parts of acetone, 30-45 parts of lubricant and 80-90 parts of filler.
3. The method for identifying the insulated temperature-sensing and phase-color of the electrical equipment as claimed in claim 2, wherein: the preparation method of the temperature change material comprises the following steps:
s11, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 120-150 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material A;
s12, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 90-120 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material B;
s13, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 70-90 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material C;
s14, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 50-70 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material D;
s15, taking out one fifth of color-changing dye, one fifth of color-developing agent and one fifth of ethyl acetate, sending the mixture into a reaction kettle, stirring and mixing the mixture by using an electric stirrer, wherein the stirring and mixing temperature is 160-170 ℃, the stirring and mixing speed is 350-450 r/min, reducing the temperature to 30-50 ℃ after the stirring is finished, preserving the temperature for 30-50 min, taking out the mixture after the liquid in the reaction kettle is completely solidified, sending the mixture into a ball mill for grinding treatment, and obtaining a color-changing material E;
s16, adding the color-changing material A, the color-changing material B, the color-changing material C, the color-changing material D and the color-changing material E into a reaction kettle, raising the temperature to 100-110 ℃, stirring and mixing for 30-50 min by using an electric stirrer, sequentially adding phenyl salicylate, a stabilizer, a lubricant and a filler, and stirring for 30-40 min again to obtain color-changing material powder;
s17, preheating a heating kettle to 180 ℃, putting bismuth oxide into the heating kettle, heating to 250-280 ℃, calcining for 70-90 min, taking out to obtain light yellow powder, putting titanium dioxide into a ball mill, ball-milling for 10-15 min, taking out, and fully and uniformly mixing with the light yellow powder to obtain a mixture;
s18, adding the color-changing material powder and the mixture into an acetone solution, heating to 24-28 ℃ at a heating speed of 6-7 ℃/min, stirring, uniformly mixing, cooling to-5-1 ℃, performing suction filtration, drying the filter residue with hot air, feeding the filter residue and low-density polyethylene into a double-screw extruder for extrusion granulation, and then cooling and air-drying to obtain the temperature-changing material.
4. The method according to claim 3, wherein the method comprises the steps of: the color-changing material A in the S11 is milk white at normal temperature and can be changed into purple at the high temperature of 120-150 ℃.
5. The method according to claim 3, wherein the method comprises the steps of: the color-changing material B in the S12 is milk white at normal temperature and can be changed into scarlet at the high temperature of 90-120 ℃.
6. The method according to claim 3, wherein the method comprises the steps of: the discoloring material C in the S13 is milk white at normal temperature and can be changed into orange yellow at the high temperature of 70-90 ℃.
7. The method according to claim 3, wherein the method comprises the steps of: the color-changing material D in the S14 is milk white at normal temperature and can be converted into peacock green at the high temperature of 50-70 ℃.
8. The method according to claim 3, wherein the method comprises the steps of: the color-changing material E in the S15 is milk white at normal temperature and can be changed into blue at the temperature of 30-50 ℃.
9. The method according to claim 3, wherein the method comprises the steps of: the stabilizer is organic tin, the lubricant is silicate ester, the filler is carbon black, and the density of the low-density polyethylene is 0.89-0.91 g/cm.
10. The method for identifying the insulated temperature-sensing and phase-color of the electrical equipment according to claim 1, wherein the method comprises the following steps: the sign sticker divide into three kinds of yellow sign sticker, green sign sticker and red sign sticker, and yellow sign sticker, green sign sticker and red sign sticker correspond ABC three-phase line on the overhead line respectively.
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| CN114235894A (en) * | 2022-02-23 | 2022-03-25 | 全球能源互联网研究院有限公司 | Epoxy resin performance testing method for packaging high-frequency transformer |
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