Amapayipi ensimbiahlukene ngamapayipi ensimbi abandayo namapayipi ensimbi anama-dip ashisayo.Amapayipi ensimbi abandayo avaliwe.Ngeminyaka yawo-1960 kanye nawo-1970, amazwe athuthukile emhlabeni aqala ukwakha izinhlobo ezintsha zamapayipi futhi kancane kancane avala amapayipi anamathani.Ongqongqoshe abane kanye namakhomishana okuhlanganisa noMnyango Wezokwakha waseChina nabo bakhiphe incwadi eshoyo ukuthi amapayipi awuthayela avaliwe ukuthi asetshenziswe njengamapayipi okuhambisa amanzi kusukela ngo-2000. Amapayipi amanzi abandayo emiphakathini esanda kwakhiwa awavamisile ukusebenzisa amapayipi anothayela, kanti amanye amanzi ashisayo. amapayipi kweminye imiphakathi asebenzisa amapayipi anathayela.Amapayipi ensimbi afakwe emanzini ashisayo anezinhlobonhlobo zezicelo ekuvikelweni komlilo, amandla kanye nemigwaqo emikhulu.
Izinhlelo zokusebenza
Amapayipi ensimbi ashisayo asetshenziswa kabanzi ekwakheni, imishini, izimayini zamalahle, amakhemikhali, amandla kagesi, izimoto zikaloliwe, imboni yezimoto, imigwaqo emikhulu, amabhuloho, iziqukathi, izikhungo zemidlalo, imishini yezolimo, imishini kaphethiloli, imishini yokuhlola, ukwakhiwa kwe-greenhouse nokunye. izimboni zokukhiqiza.
Ipayipi lensimbi eliphehliwe yipayipi lensimbi elishiselwe nge-hot-dip galvanized noma i-electro-galvanized layer phezu komhlaba.I-galvanizing ingakhuphula ukumelana nokugqwala kwamapayipi ensimbi futhi yandise impilo yesevisi.Amapayipi anamathangi asetshenziswa kakhulu.Ngaphezu kokusetshenziswa njengamapayipi oketshezi oluvamile olunomfutho ophansi njengamanzi, igesi, nowoyela, abuye asetshenziswe njengamapayipi emithombo kawoyela namapayipi kawoyela embonini ye-petroleum, ikakhulukazi ezindaweni zikawoyela ezingasogwini, nezishisi zikawoyela nama-condenser. emishinini yokupheka ngamakhemikhali.Amapayipi ama-coolers, izishintshi zikawoyela zokugeza izihluzi zamalahle, namapayipi enqwaba yama-trestle, amafreyimu asekelayo emigudu yezimayini, njll.
Isingeniso esinemininingwane
Idiphu elishisayoipayipi likathayela
Ipayipi elinothayela le-hot-dip ukwenza insimbi encibilikisiwe isabelane ne-iron matrix ukuze ikhiqize ungqimba lwengxubevange, ukuze i-matrix kanye nokunamathela kuhlanganiswe.I-hot-dip galvanizing iwukuba ugqume ipayipi lensimbi kuqala.Ukuze kukhishwe i-iron oxide ebusweni bepayipi lensimbi, ngemva kokukhetha, ihlanzwa ethangini le-ammonium chloride noma i-zinc chloride isixazululo samanzi noma isixazululo esinamanzi esixutshwe se-ammonium chloride ne-zinc chloride, bese sithunyelwa okugeza okushisayo kwediphu.I-hot-dip galvanizing inezinzuzo zokugqoka okufanayo, ukunamathela okuqinile nokuphila isikhathi eside.I-hot-dipipayipi lensimbii-substrate ibhekana nokusabela okuyinkimbinkimbi ngokomzimba namakhemikhali ngesisombululo sokucwenga esincibilikisiwe ukuze kwakhiwe ungqimba lwengxubevange ye-zinc-iron olungagqwali olunokwakheka okuhlangene.Isendlalelo se-alloy sihlanganiswe nesendlalelo se-zinc ehlanzekile kanye ne-substrate yepayipi yensimbi, ngakho inokumelana nokugqwala okuqinile.
Ipayipi elibandayo likathayela
Ipayipi elibandayo elinothayela liyi-electro-galvanized, futhi inani lama-galvanized lincane kakhulu, kuphela i-10-50g/m2.Ukumelana nokugqwala kwayo kuhluke kakhulu kunaleyo yepayipi likathayela lediphu elishisayo.Ukuze kuqinisekiswe ikhwalithi, abakhiqizi abaningi bamapayipi othayela abavamile abasebenzisi i-electro-galvanized (i-plating ebandayo).Yilawo mabhizinisi amancane kuphela anemishini ephelelwe yisikhathi asebenzisa i-electrogalvanizing, futhi vele amanani awo ashibhile.UMnyango Wezokwakha ukhiphe umyalo ngokusemthethweni wokuthi kuqedwe amapayipi abandayo anothayela ngobuchwepheshe obuphelelwe yisikhathi, futhi kungasebenzisi amapayipi abandayo amapayipi amanzi negesi.Isendlalelo se-galvanized sepayipi lensimbi elibandayo liyisingqimba se-electroplating, futhi ungqimba lwezinc lubekwe ngokuzimela nge-substrate yepayipi yensimbi.Isendlalelo se-zinc sincane, futhi ungqimba lwe-zinc lumane lunamathele ku-substrate yepayipi yensimbi futhi kulula ukuwa.Ngakho-ke, ukumelana nokugqwala kwayo kubi.Ezindlini ezisanda kwakhiwa, akuvunyelwe ukusebenzisa amapayipi ensimbi abandayo njengamapayipi okuhambisa amanzi.
Isikhathi sokuthumela: Nov-09-2022