Ifekthri yepayipi lensimbi elingagqwali
Izinto eziyisisekelo zepayipi lensimbi le-3PE le-anticorrosive lihlanganisa ipayipi lensimbi elingenamthungo, ipayipi lensimbi elivunguzayo kanye nepayipi lensimbi lomthungo oqondile. I-polyethylene (3PE) evimbela ukubola kwezingqimba ezintathu isetshenziswe kakhulu embonini yamapayipi e-petroleum ngenxa yokumelana nokugqwala kwayo okuhle, amanzi negesi ekwazi ukungena nokungena kanye nezakhiwo zemishini. I-anti-corrosion coating ye-3PE anti-corrosion steel pipe ibaluleke kakhulu empilweni yesevisi yamapayipi agqitshiwe. Amanye amapayipi ezinto ezifanayo agqitshwa ngaphansi komhlaba amashumi eminyaka ngaphandle kokugqwala, kanti amanye avuza eminyakeni embalwa. Ngoba basebenzisa izinhlobonhlobo zangaphandle zokulwa nokugqwala.
Ipayipi lensimbi le-3PE elivimbela ukubola libhekisela epayipini lensimbi elivimbela ukubola elinongqimba olu-3 lwesakhiwo se-polyethylene (mapec), okuyipayipi elivimbela ukubola elisetshenziswa kakhulu e-China. Ezinye izindlela zokulwa nokugqwala zifaka i-ipn8710, i-FBE epoxy powder, i-epoxy coal tar pitch nokunye. Ngokuvamile libhekisela ekunqandeni ukugqwala kodonga lwangaphandle lwepayipi lensimbi. I-Anti corrosion ifomu lepayipi lensimbi odongeni lwangaphandle.
Isendlalelo sokuqala se-epoxy powder (FBE > 100um)
Ungqimba lwesibili lwe-adhesive (AD) luyi-170 ~ 250um
Ungqimba lwesithathu lwe-polyethylene (PE) luyi-1.8 ~ 3.7mm
Ngokwenza, izinto ezintathu zixubene futhi zihlanganiswe zibe munye, ezihlanganiswe ngokuqinile nepayipi yensimbi ngemva kokucubungula ukuze zenze i-anti-corrosion coating enhle kakhulu. Izindlela zayo zokucubungula ngokuvamile zihlukaniswa ngohlobo olumazombezombe kanye nohlobo lokumboza oluyindilinga.
I-3PE anticorrosive steel pipe sticking (i-polyethylene anticorrosive coating enezendlalelo ezintathu) iyimbongolo yepayipi lensimbi evimbela ukubola ekhiqizwa ngokuhlanganisa ngobuchule i-2PE evimbela ukubola e-Europe kanye ne-epoxy powder anticorrosive steel pipe coating (FBE) esetshenziswa kabanzi eNyakatho Melika. Kuye kwaqashelwa futhi kwasetshenziswa emhlabeni wonke iminyaka engaphezu kweshumi.
Isembozo sepayipi lensimbi le-3PE elilwa nokugqwala yi-epoxy powder anti-corrosion coating ethintana nendawo yepayipi lensimbi, futhi ungqimba oluphakathi luyi-copolymer enamathelayo eneqembu elisebenzayo lesakhiwo segatsha. Ungqimba olungaphezulu luyi-high-density polyethylene anti-corrosion coating.
I-PE anticorrosive coating emithathu ihlanganisa ukungakwazi ukugqwala okuphezulu kanye nezakhiwo eziphezulu zemishini ye-epoxy resin ne-polyethylene. Kuze kube manje, kuqashelwa njengephayiphi engcono kakhulu yokulwa nokugqwala okunomphumela omuhle kakhulu nokusebenza emhlabeni, okusetshenziswe kumaphrojekthi amaningi.
Izinga le-SY / t0413-2002 lisetshenziswa e-China futhi laqaliswa kusukela ngo-Agasti 1, 2002. Izinga licacisa ikakhulukazi i-polyethylene kanye ne-high-density polyethylene, futhi iphoyinti lokuthambisa i-Vicat alikho ngaphansi kuka-110 ℃; Ugqinsi lwe-anti-corrosion coating lwangaphandle luzonqunywa ngokuya ngezinga laseJalimane elithi din30670-1991 elibuswa i-polyethylene yokuminyana okuphansi nokuphakathi. Amandla womthelela we-3PE anticorrosive coating athuthukiswa kakhulu. I-SY / t0413-2002 ithuthukisa kakhulu amandla e-peel kanye nokumelana nomthelela we-3PE anti-corrosion coating, ibeka ngokucacile ukuthi ngokusho kokuqukethwe kwekhabhoni emnyama kwezinye izinto ezikhethekile, amandla emishini kanye nokumelana nesimo sezulu kwe-3PE anti-corrosion coating kuqinisekisiwe, futhi imvamisa yesampula yamandla ecwecwe elinamathelayo elinamathelayo (okungukuthi amandla ekhasi lomkhono oshwabenekayo wokushisa kanye nebhande elishwabeneka ukushisa libe yinsimbi yokuqala) liyakhula.
Ngenhloso ye-3PE anti-corrosion steel pipe, abantu abaningi bazi into eyodwa kuphela futhi abayazi enye. Umsebenzi wayo ngempela uhlanganisa ububanzi obubanzi. Ilungele ukuhlinzekwa kwamanzi angaphansi komhlaba kanye ne-drainage, i-shotcrete engaphansi komhlaba, i-ventilation ye-pressure positive ne-negative, i-drainage yegesi, i-sprinkler yomlilo kanye namanye amanethiwekhi amapayipi ezimayini zamalahle. Amanzi acutshungulwa, izinsalela zemfucuza kanye nokubuyisa ipayipi lokuhambisa amanzi lesikhungo sokuphehla amandla ashisayo. Isebenza kahle kakhulu epayipini lokuphakelwa kwamanzi le-anti spray kanye nohlelo lokufafaza. Imikhono yokuzivikela yekhebula yamandla, ukuxhumana, indlela esheshayo, njll. Ilungele ukuhlinzekwa kwamanzi kwezakhiwo eziphakeme kakhulu, ukunikezwa kokushisa kwenethiwekhi yokushisa, ubunjiniyela bamanzi kampompi, ukudluliswa kwegesi, ukudluliswa kwamanzi angcwatshwe namanye amapayipi. Ipayipi lokuhambisa uwoyela, ipayipi lokucubungula lokuthutha imidiya egqwalayo ezimbonini zamakhemikhali, ezekhemisi, zokunyathelisa nezokudaya. Imisebenzi yokulwa nokugqwala kwepayipi lokulahla indle, ipayipi lendle kanye nethangi lebhayoloji. Kungashiwo ukuthi ipayipi yensimbi ye-3PE anti-corrosion ibalulekile ekwakhiweni kwamanje, futhi kukholakala ukuthi ngokunwetshwa kwesayensi nobuchwepheshe, kuzoba nempumelelo egqamile kakhulu esikhathini esizayo.
