Njengoba abantu benaka kakhulu ukuvikelwa kwemvelo kanye nentuthuko esimeme, ukusetshenziswa kwamapayipi ezimbonini nasemasimini ahlukahlukene sekuyinto evamile. Kodwa-ke, amapayipi avame ukuchayeka ezindaweni ezinzima, njengokushisa okuphezulu, umfutho ophezulu, kanye nemithombo egqwalisayo, okubangela umonakalo omkhulu kuwo, okuholela ezindleleni zokulungisa eziphakeme, futhi kwezinye izimo, izingozi noma izinhlekelele zemvelo. Ukuze kunqotshwe lezi zinselele, amapayipi angambozwa ngezingubo zokuzivikela ezifanaIzembozo ze-3LPEkanye ne-FBE coating ukuze kwandiswe ukumelana kwazo nokugqwala futhi kuthuthukiswe ukuqina kwazo.
Isembozo se-3LPE, okungukuthi, isembozo se-polyethylene esinezingqimba ezintathu, siyisistimu yokumboza enezingqimba eziningi equkethe isendlalelo sesisekelo se-epoxy esihlanganisiwe (FBE), isendlalelo sokunamathela kanye nesendlalelo se-polyethylene topcoat. Uhlelo lokumboza lunokumelana okuhle kakhulu nokugqwala, amandla okusebenza kanye nokumelana nomthelela, okwenza lusetshenziswe kabanzi kuamapayipi kawoyela negesi,amapayipi amanzi kanye nezinye izimboni lapho amapayipi evezwa khona ezindaweni ezigqwalisayo.
Ngakolunye uhlangothi, i-FBE coating iyisistimu yokumboza enejazi elilodwa equkethe i-thermosetting epoxy powder coating esetshenziswa ebusweni bepayipi. Uhlelo lokumboza lunamathela kahle kakhulu, ukuguguleka okuphezulu kanye nokumelana nokushayisana kanye nokumelana okuhle kwamakhemikhali, okwenza lufanelekele ukuvikelwa kwamapayipi ezimbonini ezahlukahlukene ezifana namafutha negesi, amanzi kanye nezokuthutha.
Kokubili ukugqoka kwe-3LPE kanye nokugqoka kwe-FBE kusetshenziswa kabanzi kubunjiniyela bamapayipi ngenxa yezakhiwo zabo ezinhle kakhulu zokuvikela. Kodwa-ke, ububanzi bokusetshenziswa kwazo buyahlukahluka kuye ngesimo esithile okudingeka siphathwe yipayipi.
Emapayipini kawoyela negesi, ukugqoka kwe-3LPE kuyathandwa ngoba kungamelana nesenzo sokugqwala sikawoyela negesi, kanye nomthelela kanye nokungqubuzana kwenhlabathi ezungezile. Ngaphezu kwalokho, ukugqoka kwe-3LPE kungamelana nokuqhekeka kwe-cathodic, okuwukuhlukaniswa kokugqoka ezindaweni zensimbi ngenxa yokusabela kwe-electrochemical. Lokhu kubaluleke kakhulu kumapayipi avikelwe nge-cathodic ngokumelene nokugqwala.
In amapayipi amanzi, i-FBE coating iyindlela yokuqala yokukhetha ngoba ingavimbela ngempumelelo ukwakheka kwe-biofilm kanye nokukhula kwamagciwane, okungangcolisa ikhwalithi yamanzi. I-FBE coating ifaneleka futhi kumapayipi ahambisa izinto ezihudulayo, njengesihlabathi, amatshe noma udaka, ngenxa yokumelana kwayo nokuguguleka okuhle kakhulu.
Ephayiphini lokuthuthwa, ukugqoka okungu-3LPE noma ukugqoka okungu-FBE kungasetshenziswa ngokwesimo esithile sokuthuthwa. Uma iphayiphi livezwa endaweni egqwalisayo, njengendawo yasolwandle, ukugqoka okungu-3LPE kuyathandwa ngoba kumelana nesenzo sokugqwalisa samanzi olwandle nezinto eziphilayo zasolwandle. Uma iphayiphi livezwa ezintweni ezikrwada njengamaminerali noma ama-ore, ukugqoka okungu-FBE kuyathandwa ngoba kunganikeza ukumelana nokuguguleka okungcono kunokugqoka okungu-3LPE.
Ngamafuphi, ububanzi bokusetshenziswa kwesembozo se-3LPE kanye nesembozo se-FBE buyahlukahluka ngokuya ngezimo ezithile zeubunjiniyela bepayipi. Lezi zinhlelo ezimbili zokumboza zinezinzuzo nezinkinga zazo. Ukukhethwa kohlelo lokumboza kufanele kucabangele ngokuphelele izici ezahlukahlukene njengohlobo lwendawo, izinga lokushisa kanye nokucindezela kwephayiphi, kanye nendawo ezungezile. Ngokuthuthuka okuqhubekayo kobuchwepheshe bephayiphi, sikholelwa ukuthi kuzoba nezinhlelo zokumboza ezintsha nezisebenzayo ukuze kuhlangatshezwane nezidingo ezikhulayo zokuvikelwa nokuphepha kwephayiphi.
Sinefektri yokulwa nokugqwala engenza uqweqwe lwe-3PE, uqweqwe lwe-epoxy njll. Uma unemibuzo sicela usithinte.
Isikhathi sokuthunyelwe: Mashi-20-2023