CN114958013A - Repair liquid suitable for oil-filled cable and preparation method and application thereof - Google Patents
Repair liquid suitable for oil-filled cable and preparation method and application thereof Download PDFInfo
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- CN114958013A CN114958013A CN202210715321.4A CN202210715321A CN114958013A CN 114958013 A CN114958013 A CN 114958013A CN 202210715321 A CN202210715321 A CN 202210715321A CN 114958013 A CN114958013 A CN 114958013A
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- Prior art keywords
- oil
- repair
- filled
- cable
- repair liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 155
- 230000008439 repair process Effects 0.000 title claims abstract description 132
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 69
- 238000009413 insulation Methods 0.000 claims abstract description 68
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 58
- 238000003756 stirring Methods 0.000 claims abstract description 43
- 239000003054 catalyst Substances 0.000 claims abstract description 41
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 230000008719 thickening Effects 0.000 claims abstract description 28
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 19
- 239000011707 mineral Substances 0.000 claims abstract description 19
- 239000003921 oil Substances 0.000 claims description 168
- 235000019198 oils Nutrition 0.000 claims description 168
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 22
- 239000003963 antioxidant agent Substances 0.000 claims description 21
- 230000003078 antioxidant effect Effects 0.000 claims description 21
- 239000007822 coupling agent Substances 0.000 claims description 17
- LLEMOWNGBBNAJR-UHFFFAOYSA-N biphenyl-2-ol Chemical compound OC1=CC=CC=C1C1=CC=CC=C1 LLEMOWNGBBNAJR-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000000806 elastomer Substances 0.000 claims description 12
- REQXNMOSXYEQLM-UHFFFAOYSA-N methoxy-dimethyl-phenylsilane Chemical compound CO[Si](C)(C)C1=CC=CC=C1 REQXNMOSXYEQLM-UHFFFAOYSA-N 0.000 claims description 12
- 235000013311 vegetables Nutrition 0.000 claims description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 11
- 239000004964 aerogel Substances 0.000 claims description 11
- 239000000419 plant extract Substances 0.000 claims description 11
- 241000196324 Embryophyta Species 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002033 PVDF binder Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 125000004423 acyloxy group Chemical group 0.000 claims description 8
- 235000010292 orthophenyl phenol Nutrition 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 claims description 7
- 235000005701 Tarchonanthus camphoratus Nutrition 0.000 claims description 7
- 244000082946 Tarchonanthus camphoratus Species 0.000 claims description 7
- 150000004645 aluminates Chemical class 0.000 claims description 7
- 239000010642 eucalyptus oil Substances 0.000 claims description 7
- 229940044949 eucalyptus oil Drugs 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000001525 mentha piperita l. herb oil Substances 0.000 claims description 7
- 239000002121 nanofiber Substances 0.000 claims description 7
- 235000019477 peppermint oil Nutrition 0.000 claims description 7
- 239000001738 pogostemon cablin oil Substances 0.000 claims description 7
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 7
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 claims description 7
- -1 acyloxy titanate Chemical compound 0.000 claims description 6
- SLTAOXPOORASCD-UHFFFAOYSA-N n-[3-[dimethoxy(methyl)silyl]propyl]butan-1-amine Chemical compound CCCCNCCC[Si](C)(OC)OC SLTAOXPOORASCD-UHFFFAOYSA-N 0.000 claims description 6
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- PKTOVQRKCNPVKY-UHFFFAOYSA-N dimethoxy(methyl)silicon Chemical compound CO[Si](C)OC PKTOVQRKCNPVKY-UHFFFAOYSA-N 0.000 claims description 5
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 claims description 5
- 210000004177 elastic tissue Anatomy 0.000 claims description 5
- 239000006247 magnetic powder Substances 0.000 claims description 5
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 229910021595 Copper(I) iodide Inorganic materials 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- LSXDOTMGLUJQCM-UHFFFAOYSA-M copper(i) iodide Chemical compound I[Cu] LSXDOTMGLUJQCM-UHFFFAOYSA-M 0.000 claims description 4
- OIKHZBFJHONJJB-UHFFFAOYSA-N dimethyl(phenyl)silicon Chemical compound C[Si](C)C1=CC=CC=C1 OIKHZBFJHONJJB-UHFFFAOYSA-N 0.000 claims description 4
- FARFSFSKJHNGTK-UHFFFAOYSA-L disodium;benzenesulfonate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC=CC=C1.[O-]S(=O)(=O)C1=CC=CC=C1 FARFSFSKJHNGTK-UHFFFAOYSA-L 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- HXVNBWAKAOHACI-UHFFFAOYSA-N 2,4-dimethyl-3-pentanone Chemical compound CC(C)C(=O)C(C)C HXVNBWAKAOHACI-UHFFFAOYSA-N 0.000 claims description 3
- DGXAGETVRDOQFP-UHFFFAOYSA-N 2,6-dihydroxybenzaldehyde Chemical compound OC1=CC=CC(O)=C1C=O DGXAGETVRDOQFP-UHFFFAOYSA-N 0.000 claims description 3
- XYVLBSAFHCWHDF-UHFFFAOYSA-N 4-[dimethoxy(methyl)silyl]-2-methylbutanenitrile Chemical compound CO[Si](C)(OC)CCC(C)C#N XYVLBSAFHCWHDF-UHFFFAOYSA-N 0.000 claims description 3
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- HJSLFCCWAKVHIW-UHFFFAOYSA-N cyclohexane-1,3-dione Chemical compound O=C1CCCC(=O)C1 HJSLFCCWAKVHIW-UHFFFAOYSA-N 0.000 claims description 3
- HTDKEJXHILZNPP-UHFFFAOYSA-N dioctyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OCCCCCCCC HTDKEJXHILZNPP-UHFFFAOYSA-N 0.000 claims description 3
- NETBVGNWMHLXRP-UHFFFAOYSA-N tert-butyl-dimethoxy-methylsilane Chemical compound CO[Si](C)(OC)C(C)(C)C NETBVGNWMHLXRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 2
- 239000004965 Silica aerogel Substances 0.000 claims description 2
- 239000010495 camellia oil Substances 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 5
- KOMDZQSPRDYARS-UHFFFAOYSA-N cyclopenta-1,3-diene titanium Chemical compound [Ti].C1C=CC=C1.C1C=CC=C1 KOMDZQSPRDYARS-UHFFFAOYSA-N 0.000 claims 2
- 239000010630 cinnamon oil Substances 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000012779 reinforcing material Substances 0.000 description 8
- 239000012466 permeate Substances 0.000 description 7
- 240000001548 Camellia japonica Species 0.000 description 6
- 244000037364 Cinnamomum aromaticum Species 0.000 description 6
- 235000014489 Cinnamomum aromaticum Nutrition 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 6
- 235000018597 common camellia Nutrition 0.000 description 6
- 235000015112 vegetable and seed oil Nutrition 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 4
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 230000003712 anti-aging effect Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- VSAWBBYYMBQKIK-UHFFFAOYSA-N 4-[[3,5-bis[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-2,4,6-trimethylphenyl]methyl]-2,6-ditert-butylphenol Chemical compound CC1=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C1CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VSAWBBYYMBQKIK-UHFFFAOYSA-N 0.000 description 3
- 241000238876 Acari Species 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 3
- 240000005572 Syzygium cordatum Species 0.000 description 3
- 235000006650 Syzygium cordatum Nutrition 0.000 description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 3
- PESYEWKSBIWTAK-UHFFFAOYSA-N cyclopenta-1,3-diene;titanium(2+) Chemical compound [Ti+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 PESYEWKSBIWTAK-UHFFFAOYSA-N 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- XYXJKPCGSGVSBO-UHFFFAOYSA-N 1,3,5-tris[(4-tert-butyl-3-hydroxy-2,6-dimethylphenyl)methyl]-1,3,5-triazinane-2,4,6-trione Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C)=C1CN1C(=O)N(CC=2C(=C(O)C(=CC=2C)C(C)(C)C)C)C(=O)N(CC=2C(=C(O)C(=CC=2C)C(C)(C)C)C)C1=O XYXJKPCGSGVSBO-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- HNZUNIKWNYHEJJ-FMIVXFBMSA-N geranyl acetone Chemical compound CC(C)=CCC\C(C)=C\CCC(C)=O HNZUNIKWNYHEJJ-FMIVXFBMSA-N 0.000 description 2
- HNZUNIKWNYHEJJ-UHFFFAOYSA-N geranyl acetone Natural products CC(C)=CCCC(C)=CCCC(C)=O HNZUNIKWNYHEJJ-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- SRKKQWSERFMTOX-UHFFFAOYSA-N cyclopentane;titanium Chemical compound [Ti].[CH]1C=CC=C1 SRKKQWSERFMTOX-UHFFFAOYSA-N 0.000 description 1
- KXMBKYCAYAIOGS-UHFFFAOYSA-N dioctyl propan-2-yl phosphate Chemical compound CCCCCCCCOP(=O)(OC(C)C)OCCCCCCCC KXMBKYCAYAIOGS-UHFFFAOYSA-N 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000035929 gnawing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention belongs to the technical field of cable repair, and particularly relates to a repair liquid suitable for an oil-filled cable, and a preparation method and application thereof, wherein the repair liquid comprises the following components in parts by mass: 0.05-10% of mineral insulating oil, 0.01-10% of plant insulating oil, 5-40% of first flow-rate insulation enhancing medium, 5-45% of second flow-rate insulation enhancing medium, 0.1-5% of biological blending reagent, 0.05-5% of catalyst and 0.05-5% of thickening reaction reagent. The preparation method comprises the following steps: adding 0.05-10% of mineral insulating oil, 0.01-10% of plant insulating oil, 5-40% of first flow-rate insulating and reinforcing medium, 5-45% of second flow-rate insulating and reinforcing medium and 0.1-5% of biological blending reagent into a container, stirring and mixing for 5-30 minutes; adding 0.05-5% of catalyst, stirring and mixing for 5-45 minutes; adding 0.05-5% of thickening reaction reagent and stirring for at least 5 minutes; the temperature of the inner wall of the container is not lower than 20 ℃ in the preparation process, and the repair liquid suitable for the dry cable and the oil-filled cable is obtained. The repair liquid is suitable for repairing dry cables and oil-filled cables.
Description
Technical Field
The invention belongs to the technical field of cable repair, and particularly relates to a repair liquid suitable for oil-filled cables and dry cables, and a preparation method and application thereof.
Background
The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater. Under the influence of manufacturing process, construction conditions, operation environment, maintenance technology and the like, various defects can be generated after the cable is put into operation, so that the dielectric constant is changed, the insulation level is reduced, and the loss is increased. The method has important significance for repairing the defects of the cable and prolonging the service life of the cable.
The cable repair liquid in the prior art only aims at dry cables such as crosslinked polyethylene cables and the like, and the problem of fusion of the repair liquid and an oil-filled medium is not solved, so that no record of the repair liquid which can be directly applied to oil-filled cables or cables containing electrolyte or oil-filled capacitors exists in the prior art, and the following reasons are found through experimental research: the existing repair liquid contains a component which reacts with water, once the component contacts with water in insulating oil or electrolyte, the permeability of the repair liquid in the insulating oil or electrolyte is possibly influenced, or agglomeration in the insulating oil is increased to form an irregular insulating layer, so that the existing repair liquid is directly used for oil-filled cables under the condition of no intervention of a proper third-party material, and the repair failure is easily caused because the proportion of the repair liquid entering the insulating layer is greatly reduced or even completely isolated in the insulating oil due to the reaction of siloxane or an acidic catalytic agent and the insulating oil or electrolyte. In addition, if the existing repair liquid is directly injected for repair, the repair liquid reacts with water in the insulating oil to rapidly generate clusters to form a blocking isolation layer, so that the repair liquid is difficult to permeate into the subsequent length of the cable, only the front end part of the cable can be repaired, the dielectric component of the insulating oil is not uniform, and abnormal heating can be caused.
And the nano repair liquid or nano microcapsule in the prior art mainly aims at water branches in insulation cavities, reduces the moisture in the cable through chemical reaction so as to prolong the insulation life, and the problems of the technology are that: when a penetrating insulation crack occurs in the cable, water branches and electric branches coexist, and the internal air and the external air of the cable are communicated, so that limited repair liquid cannot completely eliminate moisture continuously input by external air or cause the repair liquid to leak and run off from the crack, and repair failure is caused. In addition, if the water tree branches and the electric tree branches are complicated in structure, for example, a plurality of water tree branches are crossed in a certain area of the insulating layer, the nano repairing liquid may cause the plurality of tree branches to be communicated to form a large gap, so that the nano repairing liquid is rapidly lost in the large gap and is difficult to stay to generate enough clusters to improve the insulating property of the cable.
The prior art has another defect that: generally, the total volume of the gaps of the water tree branches or the electric tree branches is small, and the needed repair liquid is less, but due to the environment application factor, a large amount of repair liquid needs to be filled in the cables, and the cables are repaired blindly. In addition, a considerable proportion of the repair liquid permeates and flows out through various natural nanometer gaps after 48 hours, so that the cable cannot be inhibited from being affected with damp or growing branches for a long time, and the repair liquid is wasted while the surrounding environment is damaged.
Disclosure of Invention
The invention aims to provide a repair liquid suitable for oil-filled cables and a preparation method thereof, wherein the repair liquid can repair not only water branches and electric branches, but also penetrating cracks; the method can be used for repairing oil-filled cables and oil-filled capacitors and is also suitable for repairing dry cables.
The invention also aims to provide the application of the repair liquid in oil-filled cable and dry cable repair.
In order to solve at least one technical problem existing in the prior art, the invention is improved from two aspects of formula components and application method: the improvement of the formula components at least achieves one of the following effects, namely, the effects of isolating the air from blocking, consuming residual oxygen inside and reducing the burst risk are achieved; the growth of cracks is inhibited, and the problem that the repair liquid runs off from the cracks is solved; crack enlargement caused by the action of the mites is avoided; the flow rate of the repairing liquid is controlled so as to adjust the polymerization degree of the polymerization product, thereby improving the long-lasting property of the repairing liquid. The improvement of the application method realizes better repairing effect by batch repairing.
The technical scheme of the invention is as follows:
a repair liquid suitable for oil-filled cables comprises the following components in percentage by mass:
0.05 to 10 percent of mineral insulating oil,
0.01-10% of vegetable insulating oil, and the vegetable insulating oil and the mineral insulating oil can further absorb water and dissolve impurities to a certain degree;
the first flow rate insulation enhancement media is 20% -40%,
20% -45% of second flow-rate insulation reinforcing medium,
0.1 to 10 percent of biological blending reagent,
0.05 to 5 percent of catalyst,
0.05 to 5 percent of thickening reaction reagent;
the first flow-rate insulation enhancement medium is one or a combination of phenyl dimethyl silane, phenyl trimethoxy silane, a silane coupling agent and dimethyl silicone oil;
the second flow-rate insulation reinforcing medium is one or a combination of phenyl dimethyl methoxy silane, 3-cyano butyl methyl dimethoxy silane, (N-butyl-aminopropyl) methyl dimethoxy silane, phenyl dimethyl methoxy silane, (P-methyl phenyl ethyl) methyl dimethoxy silane, silane modified resin and methyl tertiary butyl dimethoxy silane.
The biological blending reagent comprises o-phenylphenol and plant extract oil, wherein the plant extract oil comprises peppermint oil, eucalyptus oil, cassia oil, camphor wood oil, patchouli oil and camellia seed oil. Wherein the o-phenylphenol is used for improving the stability and the flame retardance of the repair liquid.
In some embodiments, the biological blending reagent further comprises PVDF, PZT, magnetic powder and light-storing powder, and the light-storing powder can generate a light energy storage effect when being contacted with light, so that the capability of dissolving impurities and absorbing moisture of the camellia oil is enhanced.
In some embodiments, the bioremediation agent further comprises an anti-deformation nanoelastomer comprised of nanofibers, silicon-based elastic fibers, polyurethane elastomers, and polyimide nanofibers.
In some embodiments, the catalyst is a combination of two or more of a titanium silicon catalyst, silica, titania, isopropyl ketone, resorcinol-formaldehyde aerogel, silica aerogel, titania material aerogel, aluminum-based aerogel, isopropyldioleate acyloxy (dioctylphosphate acyloxy) titanate, beta-diketone titanium polyacid compound, 1, 3-cyclohexanedione, titanocene catalyst, beta-diketone non-titanocene catalyst, isopropyldioctylphosphate titanate, isopropyldioleate oxy (dioctylphosphate titanate), isopropyl titanate, dodecylbenzene sulfonic acid, benzene sulfonic acid disodium salt, cuprous iodide, silicon alkoxide.
In some embodiments, the thickening reactive agent consists of a titanate coupling agent, an aluminate coupling agent, an antioxidant, and a silane coupling agent, the titanate coupling agent is not more than 50% of the thickening reactive agent, and the antioxidant is at least two of antioxidant 168, antioxidant 330, antioxidant 1010, antioxidant 1076, antioxidant 1330, and antioxidant 5057.
The invention provides a preparation method of the repair liquid suitable for the oil-filled cable, which comprises the following steps: adding 0.05-10% of mineral insulating oil, 0.01-10% of plant insulating oil, 20-40% of first flow-rate insulating and reinforcing medium, 20-45% of second flow-rate insulating and reinforcing medium and 0.1-10% of biological blending reagent into a container, stirring and mixing for 5-30 minutes; adding 0.05-5% of catalyst, stirring and mixing for 5-45 minutes; adding 0.05-5% of thickening reaction reagent and stirring for at least 5 minutes; the temperature of the inner wall of the container is 20-80 ℃ in the preparation process, and the repair liquid suitable for the oil-filled cable is obtained.
The invention also provides another preparation method of the repair liquid suitable for the oil-filled cable, which comprises the following steps of:
(1) preparing a premix: stirring and mixing a catalyst and a thickening reaction reagent to prepare a premix, and dividing the premix into three parts;
(2) preparation of a first-stage repair liquid: taking a part of premix and a first flow-rate insulation reinforcing medium to stir and mix for 1-5 minutes to obtain a first-stage repairing liquid;
(3) preparing a second-stage repairing liquid: taking a part of premix and a second flow rate insulation reinforcing medium, and stirring and mixing for 1-5 minutes to obtain a second-stage repair liquid;
(4) preparing a third-stage repairing liquid: and taking a part of the premix, stirring and mixing the premix and the biological blending reagent for 1-10 minutes, then adding mineral insulating oil and plant insulating oil, and mixing and stirring to obtain the third-stage repairing liquid.
The repair liquid prepared by the method can directly repair the running cable through an auxiliary interface or an insulating adapter and the like.
The invention further provides the application of the repair liquid suitable for the oil-filled cable in the power cable insulation repair:
(1) dry cable application one: and injecting the repair liquid into the dry cable insulating layer under the pressure condition, or encapsulating the repair liquid into the cable at the outer part of the damaged point or directly spraying the repair liquid on the outer damaged point.
(2) Dry cable application two: and sequentially injecting the first-stage repair liquid, the second-stage repair liquid and the third-stage repair liquid into the dry cable or spraying the first-stage repair liquid, the second-stage repair liquid and the third-stage repair liquid to the external damaged point of the dry cable for repair.
(3) Oil-filled cables apply one: and (2) taking out part or all of the insulating oil of the aged oil-filled cable, adding a repairing liquid into a vacuum, semi-vacuum or gas-filled container, stirring and mixing, and injecting the mixture into the oil-filled cable, wherein the repairing liquid accounts for 1-18% of the insulating oil by mass.
(4) Oil-filled cable application two: and sequentially injecting the first-stage repairing liquid, the second-stage repairing liquid and the third-stage repairing liquid into the oil-filled cable.
Compared with the prior art, the technical scheme has the following advantages:
on one hand, the plant extracted oil in the biological blending reagent can absorb moisture and consume the moisture in the oil-filled cable insulating oil, so that the moisture content of the reaction between the plant extracted oil and the first flow-rate insulating and reinforcing medium and the moisture content of the reaction between the plant extracted oil and the second flow-rate insulating and reinforcing medium are reduced, the speed of the reaction between the plant extracted oil and the first flow-rate insulating and reinforcing medium and the reaction between the plant extracted oil and the second flow-rate insulating and reinforcing medium and the water to generate agglomeration is slowed down, and the repairing liquid can continuously permeate into the whole cable; on the other hand, the permeability of the plant-extracted oil entering other sheaths of the cable is smaller than that of the first flow-rate insulation enhancement medium and the second flow-rate insulation enhancement medium, so that a considerable proportion of the first flow-rate insulation enhancement medium and the second flow-rate insulation enhancement medium can be used for repairing sheath cracks.
PVDF, PZT and magnetic powder in the biological blending reagent can be combined with an external electric field to generate ultrasonic waves, and the peeling and crushing of an oxidation substance and a discharge release substance are accelerated by utilizing the effects of thermal expansion and cold contraction, and the reaction of plant extract oil or insulating oil with the plant extract oil or the insulating oil is promoted.
The biological blending reagent also comprises an anti-deformation nano elastomer, and on one hand, the anti-deformation nano elastomer can be combined with a thickening reaction reagent to further reduce the flow rate of the repair liquid, reduce the consumption of the repair liquid, reduce the cost and simultaneously reduce the damage to the surrounding environment; on the other hand, the supporting effect on the inner wall of the gap can be enhanced in the process that the repairing liquid generates the cluster, the long-term reinforcing and insulating effect is achieved, the cluster is prevented from being not tightly contacted with the inner wall of the gap, and a cavity is left due to expansion with heat and contraction with cold when the cable runs to generate heat or the load fluctuates.
The plant extract oil in the biological blending reagent and the deformation-resistant nano elastomer form a stable insulating medium, so that on one hand, physical barrier can be formed on the insects and the mites at the gaps, and the plant extract oil can also form chemical barrier on the insects and the mites through volatilizing odor; on the other hand, the catalyst can be matched with aerogel and other porous media in the catalyst, so that the plant extract oil is slowly volatilized, and the effect of inhibiting the gnawing of the insect and mite for a long time is achieved. The plant extract oil can also dissolve partial impurities, such as hydroxide and the like, so that the influence of impurities and dirt attached to gaps on the repairing effect is eliminated to a certain extent; the plant extract oil or the biological fiber in the biological blending reagent can absorb moisture, reduce the temperature and solve the problem of weak heat release of the repair liquid.
The repairing liquid provided by the invention adopts a thickening reaction reagent, the component reacts with moisture to generate a first barrier layer, and reacts with oxygen to generate a second barrier layer when contacting with external air, so that the repairing liquid is isolated from the external air, the leakage of the repairing liquid is prevented, a foundation is laid for subsequent repairing, and the repairing problem of a large gap or a penetrating gap is solved; in addition, when the repair liquid is injected into the cable or sprayed on the weak point of the cable (capacitor), air brought into the cable or the capacitor by pressure reacts with an oxidation reaction reagent in the repair liquid and undergoes a condensation reaction with hydroxyl generated by aging of a cable insulating layer material, so that the cohesiveness of the repair liquid and the corrosion resistance of the insulating layer are improved.
The catalyst in the formula and the resin are subjected to esterification reaction, and the antioxidant is in contact reaction with oxygen, so that the oxygen content in the power cable is reduced, and a cross-linked layer is generated, thereby reducing the explosion probability.
The repair liquid provided by the invention can react with oxygen and water to a certain degree, reduces the flow rate per se, and gradually forms an isolation layer after reaching a leakage point for tens of seconds to generate a blocking agglomeration manufacturing condition, so that the repair liquid in the cable can continuously flow in the cable and complete repair, and the defects that the conventional repair liquid has high flow rate and is difficult to form the blocking agglomeration after rapidly leaking once reaching the leakage position under the condition that the resistance of the leakage point is far smaller than that of oil are overcome.
The repair liquid provided by the invention can be used for the insulation repair of oil-filled insulation equipment such as oil-filled cables, oil-filled capacitors and the like and cable joints, and can also be used for the insulation repair of dry cables; in addition, the method can also be used for repairing the circulating insulating oil in the circulating treatment process of the insulating oil.
Drawings
FIG. 1 shows a method for preparing a repairing liquid for oil-filled cables according to the present invention.
Fig. 2 is another method of preparing a repair liquid suitable for oil-filled cables according to the present invention.
Detailed Description
Example 1:
the embodiment provides a repair liquid suitable for an oil-filled cable, which comprises the following components in percentage by mass: 3% of mineral insulating oil, 5% of vegetable insulating oil, 40% of first-flow-rate insulating and reinforcing medium, 45% of second-flow-rate insulating and reinforcing medium, 3.5% of biological blending reagent, 3% of catalyst and 0.5% of thickening reaction reagent.
The first flow-rate insulation enhancement medium is composed of phenyl dimethylsilane and phenyl trimethoxy silane.
The second flow-rate insulation reinforcing medium consists of phenyl dimethyl methoxy silane, 3-cyano butyl methyl dimethoxy silane, (N-butyl-aminopropyl) methyl dimethoxy silane and phenyl dimethyl methoxy silane.
The biological blending reagent is composed of o-phenylphenol, peppermint oil, eucalyptus oil, cassia oil, camphorwood oil, patchouli oil, PVDF, PZT, magnetic powder, camellia seed oil, light storage powder and an anti-deformation nano elastomer, wherein the anti-deformation nano elastomer is composed of nano fibers, silicon-based elastic fibers, polyurethane elastomers and glass fibers, and accounts for 30% of the mass fraction of the biological blending reagent.
The catalyst consists of titanium dioxide, isopropyl ketone, resorcinol-formaldehyde aerogel, silicon dioxide aerogel, titanium dioxide material aerogel and benzenesulfonic acid disodium salt.
The thickening reaction reagent consists of a titanate coupling agent, an aluminate coupling agent, an antioxidant and a silane coupling agent, wherein the antioxidant consists of an antioxidant 168, an antioxidant 330 and an antioxidant 1010.
As shown in fig. 1, the preparation method of the repair liquid in this embodiment is as follows: firstly, adding mineral insulating oil and vegetable insulating oil into a container, and stirring and mixing for 3 minutes; adding the first flow-rate insulation enhancement medium, the second flow-rate insulation enhancement medium and the biological blending reagent, and continuously stirring and mixing for 27 minutes; adding a catalyst, stirring and mixing for 20 minutes; adding the thickening reaction reagent into the mixture in several times and uniformly mixing the mixture, wherein the total stirring time is 5 minutes; the temperature of the inner wall of the container is 20 ℃ in the preparation process, and the repair liquid suitable for the oil-filled cable is obtained.
Example 2:
the embodiment provides a repair liquid suitable for an oil-filled cable, which comprises the following components in percentage by mass: 5% of mineral insulating oil, 10% of vegetable insulating oil, 30% of first-flow-rate insulating and reinforcing medium, 45% of second-flow-rate insulating and reinforcing medium, 5% of biological blending reagent, 2.5% of catalyst and 2.5% of thickening reaction reagent.
The first flow-rate insulation reinforcing medium is composed of a silane coupling agent and dimethyl silicone oil.
The second flow-rate insulation reinforcing medium consists of (P-methylphenylethyl) methyldimethoxysilane, silane modified resin and methyl tert-butyldimethoxysilane.
The biological blending reagent consists of o-phenylphenol, peppermint oil, eucalyptus oil, cassia oil, camphor wood oil, patchouli oil, PVDF, PZT, magnetic powder, camellia seed oil and light-storing powder.
The catalyst consists of aluminum-based aerogel, isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate, beta-diketone titanium, a beta-diketone titanium polyacid compound, 1, 3-cyclohexanedione and a cyclopentadienyl titanium catalyst.
The thickening reaction reagent consists of a titanate coupling agent, an aluminate coupling agent, an antioxidant and a silane coupling agent, and the antioxidant consists of an antioxidant 1076, an antioxidant 1330 and an antioxidant 5057.
As shown in fig. 1, the preparation method of the repair liquid in this embodiment is as follows: firstly, adding mineral insulating oil and vegetable insulating oil into a container, and stirring and mixing for 5 minutes; adding the first flow-rate insulation enhancement medium, the second flow-rate insulation enhancement medium and the biological blending reagent, and continuously stirring and mixing for 20 minutes; adding a catalyst, stirring and mixing for 45 minutes; adding the thickening reaction reagent into the mixture in several times and uniformly mixing the mixture, wherein the total stirring time is 10 minutes; the temperature of the inner wall of the container is 50 ℃ in the preparation process, and the repair liquid suitable for the oil-filled cable is obtained.
Example 3:
the embodiment provides a repair liquid suitable for an oil-filled cable, which comprises the following components in percentage by mass: 6% of mineral insulating oil, 5% of vegetable insulating oil, 35% of first-flow-rate insulating and reinforcing medium, 40% of second-flow-rate insulating and reinforcing medium, 10% of biological blending reagent, 3% of catalyst and 1% of thickening reaction reagent.
The first flow-rate insulation enhancement medium is composed of phenyl dimethylsilane and a silane coupling agent.
The second flow-rate insulation reinforcing medium is composed of phenyl dimethyl methoxy silane, (N-butyl-aminopropyl) methyl dimethoxy silane, phenyl dimethyl methoxy silane and silane modified resin.
The biological blending reagent is composed of o-phenylphenol, peppermint oil, eucalyptus oil, cassia oil, camphor wood oil, patchouli oil and camellia seed oil.
The catalyst consists of a titanium silicon catalyst, silicon dioxide, a beta-diketone non-titanocene catalyst, isopropyl dioctyl phosphate acyloxy titanate, isopropyl dioleate oxyl (dioctyl phosphate acyloxy titanate), isopropyl titanate, dodecyl benzene sulfonic acid, cuprous iodide and silicon alkoxide.
The thickening reaction reagent consists of a titanate coupling agent, an aluminate coupling agent, an antioxidant and a silane coupling agent, and the antioxidant consists of an antioxidant 168, an antioxidant 330 and an antioxidant 1330.
As shown in fig. 1, the preparation method of the repair liquid in this embodiment is as follows: firstly, adding mineral insulating oil and vegetable insulating oil into a container, and stirring and mixing for 3 minutes; adding the first flow-rate insulation enhancement medium, the second flow-rate insulation enhancement medium and the biological blending reagent, and continuously stirring and mixing for 2 minutes; adding a catalyst, stirring and mixing for 5 minutes; adding the thickening reaction reagent into the mixture in several times and uniformly mixing the mixture, wherein the total stirring time is 5 minutes; the temperature of the inner wall of the container is 80 ℃ in the preparation process, and the repair liquid suitable for the oil-filled cable is obtained.
The application method of the repair liquid of the embodiment 1-3 in the repair of the oil-filled cable or the oil-filled capacitor comprises the following steps: and (2) partially or completely taking out the insulating oil of the aged oil-filled cable, adding a repairing liquid into a vacuum, semi-vacuum or gas-filled container, stirring and mixing, and injecting the mixture into the cable, wherein the repairing liquid accounts for 1-18% of the insulating oil by mass.
The application method of the repair liquid of examples 1 to 3 in the dry cable is as follows: and injecting the repair liquid into the dry cable insulating layer under the pressure condition, or encapsulating the repair liquid into the cable at the outer part of the damaged point or directly spraying the repair liquid on the outer damaged point.
Example 4:
the embodiment provides a repair liquid suitable for an oil-filled cable, which comprises the following components in percentage by mass: 0.5% of mineral insulating oil, 1% of vegetable insulating oil, 40% of first-flow-rate insulating and reinforcing medium, 45% of second-flow-rate insulating and reinforcing medium, 10% of biological blending reagent, 2% of catalyst and 1.5% of thickening reaction reagent.
The first flow-rate insulation enhancement medium is composed of phenyl trimethoxy silane and dimethyl silicone oil.
The second flow-rate insulation reinforcing medium consists of (N-butyl-aminopropyl) methyldimethoxysilane and phenyl dimethylmethoxysilane.
The biological blending reagent is composed of o-phenyl phenol, peppermint oil, eucalyptus oil, cassia oil, camphor wood oil, patchouli oil, camellia seed oil and a deformation-resistant nano elastomer, wherein the deformation-resistant nano elastomer is composed of nano fibers, silicon-based elastic fibers, a polyurethane elastomer and glass fibers, and the deformation-resistant nano elastomer accounts for 30% of the mass fraction of the biological blending reagent.
The catalyst consists of tetraisopropyl titanate, dodecyl benzene sulfonic acid, disodium benzene sulfonate, cuprous iodide and silicon alkoxide.
The thickening reaction reagent consists of a titanate coupling agent, an aluminate coupling agent, an antioxidant and a silane coupling agent, and the antioxidant consists of an antioxidant 1010, an antioxidant 1076 and an antioxidant 1330.
As shown in fig. 2, the preparation method of the repair liquid in this embodiment is as follows:
preparing a premix: stirring and mixing a catalyst and a thickening reaction reagent to prepare a premix, and dividing the premix into three parts;
preparation of a first-stage repair liquid: taking a part of premix and a first flow-rate insulation reinforcing medium to stir and mix for 5 minutes to obtain a first-stage repairing liquid;
preparing a second-stage repair liquid: taking one part of premix and a second flow-rate insulation reinforcing medium to stir and mix for 5 minutes to obtain a second-stage repair liquid;
preparing a third-stage repairing liquid: and taking a part of the premix, stirring and mixing the premix and the biological blending reagent for 10 minutes, and then adding mineral insulating oil and plant insulating oil, mixing and stirring to obtain the third-stage repairing liquid.
Example 5:
the embodiment provides a repair liquid suitable for an oil-filled cable, which comprises the following components in percentage by mass: 8% of mineral insulating oil, 6% of vegetable insulating oil, 40% of first-flow-rate insulating and reinforcing medium, 30% of second-flow-rate insulating and reinforcing medium, 9% of biological blending reagent, 2% of catalyst and 5% of thickening reaction reagent.
The first flow-rate insulation enhancement medium is composed of phenyl trimethoxy silane and dimethyl silicone oil.
The second flow-rate insulation reinforcing medium consists of (N-butyl-aminopropyl) methyldimethoxysilane and phenyl dimethylmethoxysilane.
The biological blending reagent is composed of o-phenylphenol, peppermint oil, eucalyptus oil, cassia oil, camphorwood oil, patchouli oil, camellia seed oil and a deformation-resistant nano elastomer, wherein the deformation-resistant nano elastomer is composed of nano fibers, silicon-based elastic fibers, polyurethane elastomers and glass fibers, and accounts for 30% of the mass of the biological blending reagent.
The catalyst consists of isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate, tetraisopropyl titanate and dodecyl benzene sulfonic acid.
The thickening reaction reagent consists of a titanate coupling agent, an aluminate coupling agent, an antioxidant and a silane coupling agent, and the antioxidant consists of an antioxidant 168, an antioxidant 1076 and an antioxidant 5057.
As shown in fig. 2, the preparation method of the repair liquid in this embodiment is as follows:
preparing a premix: stirring and mixing a catalyst and a thickening reaction reagent to prepare a premix, and dividing the premix into three parts;
preparation of a first-stage repair liquid: taking a part of premix and a first flow-rate insulation reinforcing medium to stir and mix for 1 minute to obtain a first-stage repairing liquid;
preparing a second-stage repairing liquid: taking one part of premix and a second flow-rate insulation reinforcing medium to stir and mix for 1 minute to obtain a second-stage repair liquid;
preparing a third-stage repairing liquid: and (3) taking a part of the premix and the biological blending agent, stirring and mixing for 1 minute, then adding the mineral insulating oil and the plant insulating oil, mixing and stirring to obtain the third-stage repairing liquid.
The application method of the repair liquid of the examples 4 to 5 in the oil-filled cable or the oil-filled capacitor comprises the following steps: and sequentially injecting the first-stage repairing liquid, the second-stage repairing liquid and the third-stage repairing liquid into the oil-filled cable, wherein the total amount of the repairing liquids accounts for 1% -18% of the total amount of the insulating oil of the oil-filled cable or the oil-filled capacitor.
The application method of the repair liquid of examples 4 to 5 in the dry cable is as follows: and sequentially injecting the first-stage repair liquid, the second-stage repair liquid and the third-stage repair liquid into the dry cable or spraying the dry cable to the external damaged point of the cable for repair.
Application example 1:
sample preparation:
selecting oil-filled cables with the same aging degree, cutting the oil-filled cables into 25 sections with the same length, and cutting the 25 sections of the oil-filled cablesIs divided into 1 、B 1 、C 1 、D 1 、E 1 Groups of 5, each of which was prepared, wherein,
A 1 the group oil-filled cable is repaired by adopting the repairing liquid in the embodiment 1, and the specific repairing method comprises the following steps: taking out all the insulating oil in the oil-filled cable, placing the insulating oil in an air-filled container, adding a repair liquid, stirring and mixing, wherein the added repair liquid accounts for 5% of the mass of the insulating oil, applying a DC bias and a high-frequency signal to the oil-filled cable after 30 minutes to promote fusion and permeation of the insulating oil and the repair liquid, applying a DC signal and a high-frequency signal for not less than 15 minutes, naturally cooling for 30 minutes, and injecting the mixed liquid into the oil-filled cable.
B 1 The group oil-filled cable is repaired by adopting conventional repair liquid, and the conventional repair liquid is composed of 8% of a rapid insulation reinforcing material; medium and long term reinforcing material 85%; 5% of a catalyst; 2 percent of anti-aging blender, 50 percent of phenyl methyl ketone and phenyl trimethoxy silane are mixed to form the rapid insulation reinforcing material, the medium-long term reinforcing material is prepared by mixing 50% of phenyl dimethyl methoxy silane, (P-methyl phenyl ethyl) methyl dimethoxy silane, the catalyst is prepared by combining 50% of isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate and 50% of titanate coupling agent, and the anti-aging blender is prepared by 10% of ferrocene, 40% of 1,3, 5-tris (4-tert-butyl-3-hydroxy-2, 6-dimethyl benzyl) -1,3, 5-triazine-2, 4,6- (1H,3H,5H) -trione, 40% of geranyl acetone and 10% of polyvinylidene fluoride (PVDF). The repair method was the same as group a.
C 1 Group oil filled cables were not repaired and served as controls.
D 1 Group oil-filled cable is in A 1 On the basis of the group, the materials are soaked in saline water with the salt content of 10% at the temperature of 55 ℃ for 96 hours.
E 1 Group oil-filled cable at B 1 On the basis of the group, the materials are soaked in saline water with the salt content of 10% at the temperature of 55 ℃ for 96 hours.
And (3) performance testing:
test A separately 1 、B 1 、C 1 、D 1 、E 1 And indexes such as dielectric loss, insulation resistance and the like of the oil-filled cable are formed.
Wherein the content of the first and second substances,
A 1 the average dielectric loss of the group oil-filled cable is 0.45 percent, the average insulation resistance is 1.9G ohm, A 1 The average dielectric loss measured after the group of oil-filled cables were put into operation for 30 days was 0.35%, the average insulation resistance was 6.0G ohm, and the average dielectric loss measured after the group of oil-filled cables were put into operation for 180 days was 0.36%, and the average insulation resistance was 5.6G ohm.
B 1 The average dielectric loss of the group of oil-filled cables was 1.2%, the average insulation resistance was 1.5G ohm, the average dielectric loss after 30 days of operation was 1.5%, the average insulation resistance was 1.4G ohm, the average dielectric loss after 180 days of operation was 1.8%, and the average insulation resistance was 1.3G ohm.
C 1 The average dielectric loss of the group oil-filled cable was 2.6% and the average insulation resistance was 0.32G ohm.
D 1 The average water content of the oil-filled cable group was 1.605%, the average dielectric loss was 0.71%, the average insulation resistance was 1.7G ohm, and the average breakdown voltage was 15.6 kV.
E 1 The average water content of the oil-filled cable group was 2.750%, the average dielectric loss was 3.33%, the average insulation resistance was 0.9G ohm, and the average breakdown voltage was 12.8 kV.
Therefore, the repairing liquid of the invention has a repairing effect on the oil-filled cable which is obviously superior to that of the traditional repairing liquid, and on one hand, the repairing effect after 30 days and 180 days of operation is obviously superior to that of the traditional repairing liquid; on the other hand, the stability of the repaired oil-filled cable in a simulated damp aging state is also obviously superior to that of the traditional repairing liquid.
Application example 2:
sample preparation:
selecting 9 oil-filled capacitors with the same model and the same aging degree as experimental objects, and dividing the 9 capacitors into A 2 、B 2 、C 2 Groups of 3, each of which, wherein,
A 2 the capacitor bank is repaired by the repair liquid in the embodiment 4, and the specific repair method comprises the following steps: to the capacitorCleaning and drying the position where the insulating oil permeates, spraying the first-stage repair liquid, the second-stage repair liquid and the third-stage repair liquid at the permeating position in sequence according to the embodiment 4, aligning the permeating position with high-pressure injection equipment to perform contact high-pressure permeation to enable the repair liquid to permeate into the capacitor, stopping the high-pressure equipment to work for more than 1 minute after continuing for 30 minutes, slowly removing the high-pressure equipment, and sealing the permeating position. The sealing treatment method adopted in the application example is spraying of insulating protective paint, and it should be noted that other sealing treatment methods in the prior art can also be used in the application example to achieve the sealing effect.
B 2 Repairing the group capacitor by using a conventional repairing liquid, wherein the conventional repairing liquid is composed of 8% of a rapid insulation reinforcing material; medium and long term reinforcing material 85%; 5% of a catalyst; 2 percent of anti-aging blender, 50 percent of phenyl methyl ketone and phenyl trimethoxy silane are mixed to form the rapid insulation reinforcing material, the medium-long term reinforcing material is prepared by mixing 50% of phenyl dimethyl methoxy silane, (P-methyl phenyl ethyl) methyl dimethoxy silane, the catalyst is prepared by combining 50% of isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate and 50% of titanate coupling agent, and the anti-aging blender is prepared by 10% of ferrocene, 40% of 1,3, 5-tris (4-tert-butyl-3-hydroxy-2, 6-dimethyl benzyl) -1,3, 5-triazine-2, 4,6- (1H,3H,5H) -trione, 40% of geranyl acetone and 10% of polyvinylidene fluoride (PVDF). The repairing method comprises the following steps: cleaning and drying the position of the capacitor where the insulating oil permeates, spraying repair liquid at the permeating position, aligning the permeating position with high-pressure injection equipment to carry out contact high-pressure permeation to ensure that the repair liquid permeates into the capacitor, stopping the high-pressure equipment from working for more than 1 minute after lasting for 30 minutes, slowly removing the high-pressure equipment, and sealing the permeating position.
C 2 The group capacitors were not repaired and served as a control group.
And (3) performance testing:
a is to be 2 、B 2 、C 2 After the group capacitors were energized and operated for 48 hours, test A was conducted separately 2 、B 2 、C 2 Dielectric loss, insulation resistance, breakdown voltage of the group capacitor, wherein,
A 2 the average dielectric loss of the group was 0.68% and the average insulation resistance was 1.9G ohm, and after operating the capacitor for 48 hours, the average dielectric loss was again measured on power failure as 0.56%, the average insulation resistance was 4.0G ohm, and the average breakdown voltage was 25 kV.
B 2 The average dielectric loss of the group was 1.23%, and the average insulation resistance was 0.86G ohm, which failed to meet the use standard.
C 2 The average dielectric loss of the group was 1.14%, the average insulation resistance was 1.86G ohm, and the average breakdown voltage was 10.8 kV.
Therefore, the repairing liquid has obvious repairing effect on the oil-filled capacitor, and the breakdown voltage of the repaired capacitor is obviously improved and reaches the use standard. The medium loss of the oil-filled capacitor repaired by the traditional repairing liquid is improved, the insulation resistance is obviously reduced, no repairing effect is realized, and the repairing liquid is obviously not suitable for repairing the oil-filled capacitor.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and should be considered to be within the scope of the invention.
Claims (10)
1. The repairing liquid suitable for the oil-filled cable is characterized by comprising the following components in parts by mass:
0.05 to 10 percent of mineral insulating oil,
0.01 to 10 percent of vegetable insulating oil,
the first flow rate insulation enhancement media is 20% -40%,
20% -45% of second flow-rate insulation reinforcing medium,
0.1 to 10 percent of biological blending reagent,
0.05 to 5 percent of catalyst,
0.05 to 5 percent of thickening reaction reagent;
the first flow-rate insulation enhancement medium is one or a combination of phenyl dimethyl silane, phenyl trimethoxy silane, a silane coupling agent and dimethyl silicone oil;
the second flow-rate insulation reinforcing medium is one or a combination of phenyl dimethyl methoxy silane, 3-cyano butyl methyl dimethoxy silane, (N-butyl-aminopropyl) methyl dimethoxy silane, phenyl dimethyl methoxy silane, (P-methyl phenyl ethyl) methyl dimethoxy silane, silane modified resin and methyl tertiary butyl dimethoxy silane.
2. The repair fluid suitable for oil-extended cables of claim 1, wherein the bioremediation agent comprises o-phenylphenol and plant extract oil, the plant extract oil comprising peppermint oil, eucalyptus oil, cinnamon oil, camphor wood oil, patchouli oil, camellia oil.
3. The repair fluid for oil-filled cables of claim 2 wherein the bioremediation agent further comprises PVDF, PZT, magnetic powder, and light-storing powder.
4. The repair fluid for oil-filled cables according to claim 3, wherein the bioremediation agent further comprises a deformation-resistant nano-elastomer, the deformation-resistant nano-elastomer comprising nanofibers, silicon-based elastic fibers, polyurethane elastomers and polyimide nanofibers.
5. The repair fluid for oil-filled cables as claimed in claim 1, wherein the catalyst is a combination of two or more selected from the group consisting of titanium silicon catalyst, silica, titania, isopropyl ketone, resorcinol-formaldehyde aerogel, silica aerogel, titania material aerogel, aluminum-based aerogel, isopropyldioleate acyloxy (dioctylphosphate acyloxy) titanate, β -diketone titanium polyacid compound, 1, 3-cyclohexanedione, titanocene catalyst, β -diketone non-titanocene catalyst, isopropyldioctylphosphate acyloxy titanate, isopropyldioleate oxy (dioctylphosphate titanate), isopropyl titanate, dodecylbenzene sulfonic acid, benzene sulfonic acid disodium salt, cuprous iodide, and silicon alkoxide.
6. The repair fluid for oil-extended cables according to claim 1, wherein the thickening reagent is composed of a titanate coupling agent, an aluminate coupling agent, an antioxidant and a silane coupling agent.
7. The method for preparing the repairing liquid suitable for the oil-filled cable according to claim 1, wherein 0.05% -10% of mineral insulating oil, 0.01% -10% of plant insulating oil, 20% -40% of first flow rate insulation reinforcing medium, 20% -45% of second flow rate insulation reinforcing medium and 0.1% -10% of biological blending agent are added into a container and stirred and mixed for 5-30 minutes; adding 0.05-5% of catalyst, stirring and mixing for 5-45 minutes; adding 0.05-5% of thickening reaction reagent and stirring for at least 5 minutes; the temperature of the inner wall of the container is 20-80 ℃ in the preparation process, and the repair liquid suitable for the oil-filled cable is obtained.
8. The method of claim 1, comprising the steps of:
(1) preparing a premix: stirring and mixing a catalyst and a thickening reaction reagent to prepare a premix, and dividing the premix into three parts;
(2) preparation of a first-stage repair liquid: taking a part of premix and a first flow-rate insulation reinforcing medium to stir and mix for 1-5 minutes to obtain a first-stage repairing liquid;
(3) preparing a second-stage repairing liquid: taking one part of the premix and a second flow rate insulation reinforcing medium to stir and mix for 1-5 minutes to obtain a second stage repair liquid;
(4) preparing a third-stage repairing liquid: and taking one part of the premix, stirring and mixing the premix and the biological blending reagent for 1-10 minutes, then adding mineral insulating oil and vegetable insulating oil, and mixing and stirring to obtain the third-stage repair liquid.
9. Use of a repair liquid according to any one of claims 1 to 6 for oil-filled cables in the repair of power cables, including dry cables and oil-filled cables.
10. Use of a repair liquid suitable for oil-filled cables in the repair of power cables according to claim 9, characterized in that the use in the repair of oil-filled cables comprises the following steps: taking out part or all of the insulating oil of the aged oil-filled cable, adding a repairing liquid, mixing and injecting into the oil-filled cable;
the application in dry cable repair comprises the following steps: and injecting the repair liquid into the dry cable insulating layer under the pressure condition, or encapsulating the repair liquid into the cable at the outer part of the damaged point or directly spraying the repair liquid on the outer damaged point.
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