Gas sitere n'okike bụ ihe dị ọcha, rụọ ọrụ nke ọma, adaba na ike dị elu yana akụrụngwa akụrụngwa.Nrigbu ya na itinye ya n'ọrụ nwere nnukwu uru akụ na ụba, ọha na eze na gburugburu ebe obibi.Site na mmepe nke gas sitere n'okike nke China, ụlọ ọrụ gas ga-eche ohere ọhụrụ ihu, na-echekwa ihe ịma aka ọhụrụ ihu.Mgbanwe nke netwọk ọkpọkọ mbụ ma ọ bụ ịtọba netwọk ọkpọ ọhụrụ ga-emesi ike nchekwa, wepụ ihe ize ndụ niile.Dị ka a na-ahụ site na netwọk ọkpọkọ n'ụlọ na ná mba ọzọ, ihe kpatara ihe mberede ahụ, nke ihe mberede na-emebi mmadụ kpatara kpatara mmebi nke pipeline corrosion (gụnyere nrụgide corrosion cracking) na nke abụọ.Nke ikpeazụ na-esikarị ike ịchọpụta, na-elegharakarị corrosion pipeline anya, ihe ịrụ ụka adịghị ya na a ga-ekwurịrị ebumnuche dị mkpa.
Ngwa mkpuchi anticorrosion dị elu
Ụzọ bụ isi nke ụlọ na mba dị n'okpuru ala gas pipeline corrosion kwesịrị ekwesị dabere na pipeline ala ala, ọdịdị ọdịdị ala, ọnọdụ ala, mkpuchi nke nchebe cathodic gbakwunyere.Agba eji: mmanụ ala asphalt, coal tar enamel, epoxy paint.Mgbochi corrosion petrol petroleum a na-ejikarị agba asphalt.Ọ bụrụ na ala gburugburu ebe obibi, microbial, ọ dịghị oké njọ nnyonye anya na miri-gbanyere mkpọrọgwụ osisi, a ga-ahuta dị ka oké ọnụ mgbochi corrosion oyi akwa.Ngwongwo ya na-asọ asọ adịghị mma maka ọnọdụ okpomọkụ dị elu na mmetọ dị njọ nke gburugburu ebe obibi n'oge a na-ewu ụlọ, ojiji ya egosila na-agbada ala.Site n'echiche zuru ụwa ọnụ, nke a na-ejikarị eme ihe mgbe a na-agbanye enamel coal tar na epoxy paint.Nke mbụ nwere mgbochi mgbochi microbial corrosion siri ike, mgbochi mgbọrọgwụ penetration nke osisi, obere mmiri absorption, iguzogide cathodic delamination, bonding ọbọp siri ike na mgbidi, e nwere doro anya uru maka ojiji na mmanụ na gas pipeline The United States, Russia. , na nnukwu ọnụ ọgụgụ ojiji.
Pipeline mkpuchi n'ihu elu pretreatment usoro mmezi
Ogo nke nchekwa na-adabere n'ogo nke usoro nhazi ihe eji eme ihe n'ihu mkpuchi.Iwu nke oge na mmetọ ọrụ siri ike ikwe nkwa ịdị mma.Na-adịbeghị anya ọchịchọ iji elu okpomọkụ unglazed iwu degreasing, na ọkpọkọ loading n'ime pụrụ iche ọkụ na 350 ~ 400 ℃ supplemented na ventilashion, mkpuchi 3 ~ 4 h, mmanụ ọkụ nkwa degreasing àgwà.Igwe peening kama usoro pickling nke ọdịnala.Usoro a bụ ojiji nke ikuku abịakọrọ na-ebu ígwè ogbugba (ma ọ bụ ájá) na-etolite a elu-ọsọ eruba nke lọjistik mmetụta siri ike na ígwè elu site nozzle nke egbe wepụ mmanụ ma ọ bụ oxide.Ọ nchara kpam kpam, ma na-mma n'elu roughness, na-amụba kọntaktị ebe nke mgbidi na mkpuchi (ihe dị ka ugboro 20), na mma mkpuchi nkekọ ike, nwere ike n'ụzọ dị irè gbochie miri delamination.
Oge nzipu: Nov-04-2019