Nokuba igumbi locingo lweisifudumezi sombane esingaqhushumbaifuna ukugquma kwepeyinti yokufakwa kwepeyinti ixhomekeke kuphononongo olubanzi lohlobo oluthile lobungqina bokudubula, iimfuno ezisemgangathweni, kunye neemeko zokwenyani zesicelo.
I. IiMfuno ezingundoqo zeeNgcaciso eziMgangatho
1. GB 3836.1-2021 (IiMfuno ngokuBanzi kwiZixhobo kwi-Atmospheres Explosive Atmospheres)
Lo mgangatho ubandakanya iimfuno zommandla wothuli kodwa awunyanzelisi imimiselo yokutshiza ivanishi yokutshiza kumagumbi ocingo kwizixhobo zeClass II (ezifana neizifudumezi zombane ezingaqhushumbayo).
Kwizixhobo zeKlasi I (imigodi yamalahle ephantsi komhlaba), iindawo zangaphakathi zamagumbi ocingo lwentsimbi kufuneka zigqunywe ngepeyinti enganyangekiyo ye-arc (njengepeyinti ye-porcelain ye-1320 epoxy) ukukhusela ukuqhuma kwegesi ye-arc-induced. Nangona kunjalo, akukho mfuneko ethile echazwe kwizixhobo zeClass II (imimandla engeyiyo yemigodi yamalahle efana nezityalo zekhemikhali, izibonelelo ze-oyile kunye negesi, njl.).
2. Uyilo oluKhethekileyo lweZixhobo zokuNgadangali (Ex d).
Imiphezulu yokukhwelana kwindawo ebiyelweyo engatshiyo kufuneka ifakwe kunyango lwe-phosphating kwaye iqatywe nge-oyile yokunqanda ukurusa (efana ne-204-1 ye-oyile ye-anti-rust) ukuqinisekisa ukutywinwa kunye nokuxhathisa ukubola. Nangona i-oyile ye-anti-rust ineempawu ezithile zokugquma, ayisiyo ipeyinti ekhethekileyo yokugquma.
Ukuba kukho ii-conductors eziveziweyo okanye iingozi ze-flashover ngaphakathi kwegumbi le-wiring, uyilo kufuneka luhambelane nemigangatho (umzekelo, i-GB/T 16935.1) ngokucocwa kunye nomgama we-creepage, kunokuba uthembele kuphela kwi-varnish yokukhusela.
3. IiMfuno zokuKhusela uKhuseleko oloNgeziweyo (Ex e) Izixhobo
Isixhobo sokhuseleko esomeleziweyo kufuneka siqinisekise ukuba akukho zintlantsi ngexesha lokusebenza kwesiqhelo, kunye nokusebenza kogqumelelo lwegumbi le-wiring luxhomekeke ikakhulu kwizinto ezigqumayo (ezifana neeseramics, i-epoxy resin) kunye ne-conductor sheathing, endaweni yokugquma umphezulu wegumbi.
Ukuba ubuso becandelo le-insulating lonakaliswe, kufuneka lilungiswe ngepeyinti ye-insulating yebakala elifanayo, kodwa akukho mfuneko yokuba i-cavity yonke ifakwe.
II. Iingqwalasela zobuGcisa kwizicelo eziSebenzayo
1. Imisebenzi kunye neMida yeVarnish yokugquma
Izinto eziluncedo: Ipeyinti egqumayo inokwandisa ukomelela komphezulu wokugquma (njengokumelana ne-arc kunye nokuthintela ukuvuza), iyenze ifanelekele ngakumbi ukufuma okuphezulu okanye indawo ezinothuli. Umzekelo, ukusebenzisa i-20-30μm yepeyinti yokugquma i-epoxy kunokunyusa izinga lokugcinwa kwe-insulation libe ngaphezulu kwama-85%.
Umngcipheko: Ipeyinti egqumayo inokuchaphazela ukutshatyalaliswa kobushushu. Umzekelo, ubungqina bokudubulaisifudumezi sombanekwandisa ukutshatyalaliswa kobushushu ngokusebenzisa iminyango yokupholisa kunye nokuzaliswa kwegesi engasebenzi. Ukutshiza ngokugqithisileyo kunokuphazamisa ibhalansi yobushushu. Ukongezelela, ipeyinti yokugquma kufuneka iphumelele iimvavanyo zokumelana nobushushu obuphezulu (umzekelo, ngaphezu kwe-150 ° C) okanye ingaphumeleli.
2. Ukuziqhelanisa noShishino kunye neeNkqubo zoMvelisi
Izixhobo ezingangenwa luthuli zangaphandle: Uninzi lwabavelisi bafaka i-primer yokuthintela ukurusa (umzekelo, i-alkyd primer ebomvu yentsimbi ye-C06-1) ngaphakathi kwigumbi lokubiyela, kodwa ipeyinti yokugquma ayinyanzeliswa. Umzekelo, ibhokisi ethile yesiphambuka yemoto ethintela uqhushumbo isebenzisa indibaniselwano "yepeyinti ye-arc-resistant magnetic", eqinisa ukugquma kwindawo kuphela.
Ukwandiswa kwezixhobo zokukhusela: Ugxininiso olukhulu lubekwe ekuthembekeni komatshini wokudibanisa umqhubi (njengama-terminals anti-loosening) kunye nokukhethwa kwezinto zokukhusela, ngelixa ukutshiza kwe-cavity akuyimfuneko.
3. IiMfuno ezongezelelweyo zeeMpahla eziZodwa
Iindawo ezinomhlwa ophezulu (ezifana nemimandla engaselunxwemeni okanye yemizi-mveliso yeekhemikhali): Faka ipeyinti ekhusela ukurusa (umzekelo, i-ZS-1091 i-ceramic insulating insulating coating) ukuqinisekisa ukuxhathisa imichiza kunye nokugquma.
Isixhobo esinamandla ombane aphezulu (umzekelo, ngaphezulu kwe-10kV): Ipeyinti echasene ne-corona enobunzima obuthambekileyo kufuneka ifakwe ukucinezela izinto ezikhutshwayo.
III. Isiphelo kunye neeNgcebiso
1. Iimeko zokutshiza ezinyanzelekileyo
Kuphela ngamagumbi ocingo ezixhobo zeClass I (kwimigodi yamalahle angaphantsi komhlaba) afunekayo ukuba aqatywe ngokunyanzeliswa ngepeyinti enganyangekiyo kwi-arc.
Ukuba isixhobo siphucula ukusebenza kwaso kobungqina bokudubula ngokufaka ipeyinti yokugquma (umzekelo, ukuhlangabezana neereyithingi eziphezulu ze-IP okanye ukumelana nokubola), oku kufuneka kuchazwe ngokucacileyo kumaxwebhu esiqinisekiso.
2. Iimeko ezinganyanzelekanga kodwa ezicetyiswayo
Kwizixhobo zeClass II, kucetyiswa ukuba usebenzise ipeyinti yokugquma ukuba kukho iimeko ezilandelayo:
Igumbi le-wiring linendawo edibeneyo, kunye nokukhutshwa kombane okanye umgama we-creepage usondela kumda oqhelekileyo.
Ukufuma okuphezulu kwendawo (umzekelo, RH> 90%) okanye ubukho bothuli oluqhubayo.
Isixhobo sifuna ukusebenza ixesha elide kwaye kunzima ukusigcina (umzekelo, ukungcwatywa okanye ukufakela okutywiniweyo).
Kunconywa ukuba ukhethe i-high-temperature-resistant (≥135 ° C) kunye ne-adhesive insulating paint (efana nepeyinti ye-epoxy polyester), kunye nobukhulu obulawulwa phakathi kwe-20-30μm ukulinganisa ukugquma kunye nokutshatyalaliswa kobushushu.
3. Inkqubo kunye noQinisekiso
Ngaphambi kokutshiza, i-cavity kufuneka iqhutywe unyango lwe-sandblasting (i-Sa2.5 grade) ukuqinisekisa ukunamathela kwefilimu yepeyinti.
Emva kokugqitywa, ukuchasana kwe-insulation (≥10MΩ) kunye namandla e-dielectric (umzekelo, i-1760V / 2min) kufuneka ihlolwe, kwaye uvavanyo lokutshiza ityuwa (umzekelo, isisombululo se-5% se-NaCl, iiyure ze-1000 ngaphandle kokugqwala) kufuneka sidlule.
Ukuba ufuna ukwazi ngakumbi malunga nemveliso yethu, ncedaQhagamshelana nathi!
Ixesha lokuposa: Oct-09-2025
