Daim ntawv thov ntawm Epoxy Resin Insulators hauv Cov Khoom Siv Hluav Taws Xob

Daim ntawv thov ntawm Epoxy Resin Insulators hauv Cov Khoom Siv Hluav Taws Xob

Nyob rau hauv xyoo tas los no, insulators nrog epoxy resin li dielectric tau siv dav hauv kev lag luam hluav taws xob, xws li bushings, txhawb insulators, contact boxes, insulating cylinders and poles made of epoxy resin on three-phase AC high-voltage switchgear. Kem, thiab lwm yam, cia peb tham txog qee yam ntawm kuv tus kheej cov kev xav raws li cov teeb meem rwb thaiv tsev uas tshwm sim thaum siv cov epoxy resin rwb thaiv tsev qhov chaw.

1. Kev tsim cov epoxy resin rwb thaiv tsev
Cov ntaub ntawv epoxy resin muaj cov txiaj ntsig zoo hauv cov khoom siv hluav taws xob, xws li kev sib koom ua ke siab, muaj zog adhesion, zoo yooj, zoo thermal curing zog thiab ruaj khov tshuaj corrosion kuj. Oxygen siab gel manufacturing txheej txheem (APG txheej txheem), nqus casting rau hauv ntau yam khoom siv. Cov epoxy resin insulating qhov chaw ua tau zoo ntawm cov neeg kho tshuab muaj zog, muaj zog arc tsis kam, siab compactness, du nto, zoo txias tsis kam, zoo tshav kub tsis kam, zoo hluav taws xob rwb thaiv tsev kev ua tau zoo, thiab lwm yam Nws yog dav siv nyob rau hauv kev lag luam thiab feem ntau plays lub lub luag haujlwm ntawm kev txhawb nqa thiab rwb thaiv tsev. Lub cev, mechanical, hluav taws xob thiab thermal zog ntawm epoxy resin rwb thaiv tsev rau 3.6 txog 40.5 kV yog qhia nyob rau hauv cov lus hauv qab no.
Epoxy resins yog siv ua ke nrog cov additives kom tau txais daim ntawv thov nqi. Additives tuaj yeem xaiv raws li lub hom phiaj sib txawv. Feem ntau siv additives suav nrog cov hauv qab no: ① curing agent. ② hloov kho. ③ Ntim. ④ thinner. ⑤ Lwm tus. Ntawm lawv, tus neeg sawv cev kho yog ib qho tseem ceeb ntxiv, txawm tias nws yog siv los ua cov nplaum, txheej lossis castable, nws yuav tsum tau ntxiv, txwv tsis pub cov epoxy resin tsis tuaj yeem kho. Vim muaj kev siv sib txawv, cov khoom thiab cov kev xav tau, kuj tseem muaj cov kev cai sib txawv rau epoxy resins thiab additives xws li curing agents, modifiers, fillers thiab diluents.
Nyob rau hauv cov txheej txheem ntawm insulating qhov chaw, qhov zoo ntawm raw cov ntaub ntawv xws li epoxy resin, pwm, pwm, cua sov kub, lub pouring siab, thiab lub sij hawm curing muaj kev cuam tshuam zoo rau qhov zoo ntawm cov khoom tiav ntawm insulating. ntu. Yog li ntawd, cov chaw tsim khoom muaj cov txheej txheem txheem. Txheej txheem los xyuas kom meej qhov zoo tswj ntawm insulating qhov chaw.

2. Kev tawg mechanism thiab optimization txheej txheem ntawm epoxy resin rwb thaiv tsev
Epoxy resin rwb thaiv tsev yog ib qho khoom nruab nrab, thiab lub zog tawg ntawm cov khoom yog siab dua li cov kua thiab roj nruab nrab. khoom nruab nrab tawg
Cov yam ntxwv yog tias lub zog tawg ntawm lub zog muaj kev sib raug zoo nrog lub sijhawm ua haujlwm ntawm qhov hluav taws xob. Feem ntau hais lus, kev tawg ntawm lub sijhawm ua haujlwm t Lub npe hu ua solid-sealed ncej yog hais txog ib qho kev ywj pheej uas muaj xws li lub tshuab nqus tsev cuam tshuam thiab / lossis kev sib txuas thiab nws cov terminals ntim nrog cov khoom siv insulating. Txij li nws cov khoom siv insulating yog cov epoxy resin, lub zog silicone roj hmab thiab cov nplaum, thiab lwm yam., cov txheej txheem ntawm lub tshuab nqus tsev cuam tshuam yog encapsulated nyob rau hauv lem ntawm qab mus rau sab saum toj raws li cov txheej txheem sealing khoom. Ib tug ncej yog tsim nyob rau hauv periphery ntawm lub ntsiab Circuit Court. Nyob rau hauv cov txheej txheem ntau lawm, tus ncej yuav tsum xyuas kom meej tias qhov kev ua tau zoo ntawm lub tshuab nqus tsev cuam tshuam yuav tsis raug txo los yog poob, thiab nws qhov chaw yuav tsum tiaj tus thiab du, thiab yuav tsum tsis muaj looseness, impurities, npuas los yog pores uas txo cov hluav taws xob thiab cov khoom siv kho tshuab. , thiab yuav tsum tsis muaj qhov tsis xws luag xws li tawg. . Txawm li cas los xij, qhov kev tsis lees paub ntawm 40.5 kV cov khoom lag luam kaw cov khoom tseem yog qhov siab, thiab qhov poob los ntawm kev puas tsuaj ntawm lub tshuab nqus tsev cuam tshuam yog mob taub hau rau ntau qhov chaw tsim khoom. Qhov laj thawj yog vim li cas qhov kev tsis lees paub yog vim qhov tseeb tias tus ncej tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm rwb thaiv tsev. Piv txwv li, nyob rau hauv 95 kV 1 min fais fab zaus tiv thaiv hluav taws xob ntsuas hluav taws xob, muaj lub suab nrov tawm lossis tawg tshwm sim hauv cov rwb thaiv tsev thaum lub sijhawm kuaj.
Los ntawm lub hauv paus ntsiab lus ntawm high-voltage rwb thaiv tsev, peb paub hais tias cov hluav taws xob tawg txheej txheem ntawm cov khoom nruab nrab yog zoo ib yam li cov roj. Lub electron avalanche yog tsim los ntawm kev cuam tshuam ionization. Thaum lub electron avalanche muaj zog txaus, lub dielectric lattice qauv raug rhuav tshem thiab kev tawg yog tshwm sim. Rau ob peb cov ntaub ntawv insulating siv nyob rau hauv cov khoom-sealed ncej, lub siab tshaj plaws voltage uas lub thickness ntawm chav tsev yuav tiv taus ua ntej tawg, uas yog, lub inherent breakdown teb lub zog, kuj siab, tshwj xeeb tshaj yog cov Eb ntawm epoxy resin ≈ 20 kV / mm. Txawm li cas los xij, qhov sib xws ntawm lub teb hluav taws xob muaj kev cuam tshuam zoo rau cov khoom siv insulating ntawm cov khoom nruab nrab. Yog tias muaj qhov hluav taws xob muaj zog heev sab hauv, txawm tias cov khoom siv insulating muaj cov tuab txaus thiab cov kab hluav taws xob rwb thaiv tsev, ob qho tib si qhov kev ntsuas hluav taws xob tiv thaiv thiab qhov kev sim tawm ib nrab yog dhau thaum tawm hauv lub hoobkas. Tom qab ib lub sijhawm ua haujlwm, kev puas tsuaj ntawm cov rwb thaiv tsev kuj tseem tuaj yeem tshwm sim ntau zaus. Cov nyhuv ntawm cov hluav taws xob hauv zos muaj zog heev, ib yam li tearing daim ntawv, cov kev ntxhov siab ntau dhau yuav raug siv rau txhua qhov kev ua haujlwm, thiab qhov tshwm sim yog tias lub zog tsawg dua li lub zog tensile ntawm daim ntawv tuaj yeem rhuav tshem tag nrho. ntawv. Thaum lub zog hluav taws xob hauv zos muaj zog heev ua rau cov khoom siv insulating hauv cov khoom siv hluav taws xob, nws yuav tsim cov nyhuv "cone qhov", yog li cov khoom siv insulating maj mam tawg. Txawm li cas los xij, nyob rau theem pib, tsis yog tsuas yog cov pa hluav taws xob ntau zaus tiv taus qhov hluav taws xob thiab kev ntsuas qhov tso tawm ib nrab tsis tuaj yeem ntes qhov kev phom sij zais no, tab sis kuj tsis muaj txoj hauv kev tshawb nrhiav kom pom nws, thiab nws tsuas yog lav tau los ntawm cov txheej txheem tsim khoom. Yog li ntawd, cov npoo ntawm cov kab sab saud thiab sab nraud ntawm cov khoom kaw ntom ntom yuav tsum tau hloov mus rau hauv ib puag ncig arc, thiab lub vojvoog yuav tsum loj npaum li qhov ua tau los ua kom zoo dua cov hluav taws xob xa hluav taws xob. Thaum lub sij hawm tsim cov txheej txheem ntawm tus ncej, rau cov khoom siv xov xwm xws li epoxy resin thiab lub zog silicone roj hmab, vim muaj qhov sib txuam ntawm thaj chaw lossis ntim qhov sib txawv ntawm qhov tawg, lub zog tawg tuaj yeem sib txawv, thiab qhov tawg ntawm qhov loj. thaj chaw lossis ntim yuav txawv. Yog li ntawd, cov khoom nruab nrab xws li epoxy resin yuav tsum tau muab sib xyaw ua ke los ntawm kev sib xyaw cov khoom ua ntej encapsulation thiab kho, thiaj li tswj tau qhov tawg ntawm lub zog.
Nyob rau tib lub sijhawm, txij li cov khoom nruab nrab yog cov rwb thaiv tsev tsis yog tus kheej rov qab, tus ncej yog raug rau ntau qhov kev ntsuas hluav taws xob. Yog hais tias cov khoom nruab nrab yog ib feem puas nyob rau hauv txhua qhov kev ntsuam xyuas voltage, nyob rau hauv lub cumulative nyhuv thiab ntau yam kev xeem voltages, qhov kev puas tsuaj ib feem yuav nthuav thiab nws thiaj li ua rau cov ncej tawg. Yog li ntawd, qhov rwb thaiv tsev ntawm tus ncej yuav tsum tau tsim kom loj dua kom tsis txhob muaj kev puas tsuaj rau tus ncej los ntawm qhov ntsuas qhov ntsuas qhov ntsuas.
Tsis tas li ntawd, cov huab cua sib txawv tsim los ntawm cov neeg pluag adhesion ntawm ntau yam khoom xov xwm nyob rau hauv lub ncej ncej los yog cov huab cua npuas nyob rau hauv cov khoom nruab nrab nws tus kheej, nyob rau hauv qhov kev txiav txim ntawm lub voltage, qhov sib txawv ntawm huab cua los yog huab cua sib txawv yog siab tshaj nyob rau hauv cov khoom. nruab nrab vim muaj zog teb ntau dua nyob rau hauv huab cua sib txawv los yog npuas. Los yog qhov tawg ntawm lub zog ntawm cov npuas yog qis dua li cov khib nyiab. Yog li ntawd, yuav muaj ib feem tawm ntawm cov npuas nyob rau hauv cov khoom nruab nrab ntawm tus ncej los yog tawg paug tawm nyob rau hauv cov pa tawm. Txhawm rau daws qhov teeb meem rwb thaiv tsev no, nws yog qhov pom tseeb los tiv thaiv kev tsim ntawm huab cua tsis sib xws lossis npuas: ① Cov khoom sib txuas tuaj yeem kho tau raws li qhov sib xws ntawm qhov chaw (nqus ntawm lub tshuab nqus tsev cuam tshuam) los yog lub qhov dej (nto ntawm silicone roj hmab), thiab siv. ib tug tsim nyog adhesive kom zoo sib txuas ntawm kev sib raug zoo nto. ② Cov khoom siv raw zoo heev thiab cov khoom siv nchuav tuaj yeem siv los xyuas kom cov rwb thaiv tsev ntawm cov khoom nruab nrab.

3 Kev ntsuam xyuas ntawm epoxy resin rwb thaiv tsev
Feem ntau, qhov yuav tsum tau ua cov khoom kuaj uas yuav tsum tau ua rau cov khoom siv insulating ua los ntawm epoxy resin yog:
1) Cov tsos mob lossis kev kuaj X-ray, kev tshuaj xyuas qhov loj.
2) Kev ntsuas ib puag ncig, xws li kev ntsuas txias thiab cua sov, ntsuas kev vibration thiab kev ntsuas lub zog, thiab lwm yam.
3) Kev ntsuas rwb thaiv tsev, xws li kev kuaj ib nrab, lub zog zaus tiv thaiv qhov ntsuas hluav taws xob, thiab lwm yam.

4 Kev xaus
Nyob rau hauv cov ntsiab lus, niaj hnub no, thaum epoxy resin rwb thaiv tsev yog dav siv, peb yuav tsum raug siv epoxy resin rwb thaiv tsev cov khoom los ntawm cov yam ntxwv ntawm epoxy resin rwb thaiv tsev qhov chaw tsim cov txheej txheem thiab hluav taws xob teb optimization tsim nyob rau hauv lub hwj chim khoom los ua epoxy resin rwb thaiv tsev qhov chaw. Daim ntawv thov hauv cov khoom siv fais fab yog zoo meej dua.