Izinjongo eziyinhloko zokuthuthukisa ukusebenza kokuzamazama komhlaba kwamapayipi okuphakelwa kwamanzi zimbili: enye iwukuqinisekisa umthamo wokudluliswa kwamanzi, ukuvimbela indawo enkulu yokulahlekelwa umfutho wamanzi, ukuze ukwazi ukuhlinzeka ngamanzi emlilweni nasezikhungweni ezibucayi esimweni esiphuthumayo; Okwesibili ukunciphisa umonakalo wepayipi ukuze kube lula ukukhanda ngokushesha. Ngamanye amazwi, lapho ubhekene nezinhlekelele zokuzamazama komhlaba, uhlelo lokuhlinzeka ngamanzi kufanele lube nokuguquguquka okuphezulu.
Ukuvimbela amakhefu amakhulu amanzi kubalulekile ekugcineni ukusebenza okuvamile kohlelo lokuphakelwa kwamanzi. Uhlelo lwamapayipi lwe-PE4710 (olulingana ne-PE100) lunethuba eliphansi kakhulu lokuqhekeka nokuvuza kwanoma yiliphi ipayipi lamanzi, okusiza ukufeza zonke lezi zinhloso ezingenhla.
Ukusabalala kwamagagasi kanye nokuwohloka kwenhlabathi unomphela yizona zimbangela eziyinhloko zomonakalo wamapayipi agqitshiwe. Ngenxa yokuba khona kwamandla e-axial nokucindezeleka okugoba, ukunyakaza komhlabathi kuholela ezinhlobonhlobo ze-axial kanye nokugoba epayipini. Izinto eziqinile eziqinile (ukucindezeleka okuphezulu okuvunyelwe) ngokuvamile zinekhono elilinganiselwe lokukhubaza. Izinto ze-ductile ezimelelwe i-polyethylene (PE) (ingcindezi ephansi evumelekile) zinekhono elihle lokuguga kanye nokuqina.
Amandla wokuzamazama komhlaba wesistimu yamapayipi aboniswa ukuguquguquka kwawo kubunzima obungaphezulu. Ukuzamazama komhlaba noma ukusakazwa kwegagasi lokuzamazama komhlaba kungabangela ubunzima emhlabathini okwanele ukulimaza ngisho namapayipi asengozini kakhulu. Ukuqhekeka kwamaphutha, ukudilika kwenhlabathi, ukuguquka kwenhlabathi ibe udaka kanye nomphumela wokuhlala kanye/noma ukusakazeka eceleni, ukuncipha komhlaba kanye nokuphakanyiswa kungase kubangele ubunzima obukhulu emhlabathini, okubangele ukulimala ezindaweni ezinkulu zamapayipi agqitshiwe. Ithebula B-1 ibala idatha yobunzima obusemhlabeni obubonwa emhlabeni wonke ngenxa yokuwohloka unomphela komhlabathi.
Ithebula B-1 Kubhekwe ubunzima bomhlaba ngenxa yokuguquguquka unomphela komhlabathi
Ibanga elidingekayo le-ground strain yamapayipi liphakathi kuka-0.05% no-4.5%. Embikweni wango-2008 we-American Electric Power Research Institute, izilinganiso zomthamo we-PE4710 zanikezwa. Kumazinga okushisa angu-50°F (10 ° C), isilinganiso sokuvunwa kwepayipi le-PE4710 singu-9.9%, kuyilapho isilinganiso sokuqina sokuqina singama-206%. Ipayipi le-polyethylene lizohamba ngokuphendula ukunyakaza komhlabathi, kunokumelana nemithwalo engabangela ukuphuka kwamapayipi aqinile noma aphukayo. Ezehlakalweni eziningi zokuzamazama komhlaba, ipayipi elishiselwe (elishiselwe) le-high density polyethylene (HDPE) lizogoba, kodwa ngeke liphuke noma lihlukanise (uxhumano olungavali), ngaleyo ndlela ligcine amanzi avamile. Kumele kuqashelwe ukuthi konke ukuxhuma kwamapayipi e-PE nezinye izakhiwo, izinsiza ezihambisanayo kanye nezingxenye kungase kube ngaphansi kwemithwalo ephakeme ehlukene. Ukuxhumana kwalezi zingxenye kufanele kuhlelwe ngokucophelela futhi kuklanyelwe ukunciphisa ingozi yokuqhekeka.
Isivuno esiqinile sepayipi le-PE4710 sicishe siphindwe kabili kunesohlobo lwe-ground strain ebangelwa ubukhulu obukhulu obubonwayo, futhi uhlobo lokugcina lwe-PE4710 lungaphezu kokuphindwe ka-40 kohlobo oluphezulu lomhlabathi. Ukusebenza okutholwe ngokubala kwethiyori kuhambisana nokusetshenziswa kwepayipi le-polyethylene ekuzamazameni komhlaba. Ulayini wokuphakela amanzi we-HDPE oshiselwe wenze kahle ekuzamazameni komhlaba. Ithebula B-2 linikeza ukubonwa okungaphelele kokuzamazama komhlaba okwedlule e-Japan (Omuro and Himono, 2018).
Ithebula B-2 Idatha ebonwe ngesikhathi sokuzamazama komhlaba okwedlule e-Japan
Ukusebenza kokuzamazama komhlaba kwamapayipi kufanele kuhlolwe, okuhlanganisa ukuqina, umthamo we-axial strain, i-radius egobile evumelekile, amandla ahlangene, ukuzinza kanye nesimo esikhona samapayipi. Inani elikhulu lesipiliyoni sokuzamazama komhlaba libonisa ukuthi amapayipi amakhulu ahlinzeka ngamanzi e-HDPE ngokuhambisana namazinga ochungechunge lwamapayipi e-ASTM angagcina ukusebenza okuvamile ngaphansi kwezimo eziningi zokuzamazama komhlaba. Lapho izidingo zokuzamazama komhlaba zepayipi elikhulu lokuphakela amanzi ziphakeme, ukusetshenziswa kwamapayipi ashiselwe i-HDPE kufanele kucatshangelwe, ngoba ukusebenza kokuzamazama komhlaba kwamapayipi e-HDPE kunokwethenjelwa kakhulu, futhi angakwazi ukuzivumelanisa nezimo ezihlukahlukene zomhlabathi ezivezwa ukuzamazama komhlaba futhi agcine ukusebenza okuvamile.
CHUANGRONGis a share industry and trade integrated company, established in 2005 which focused on the production of HDPE Pipes, Fittings & Valves, PPR Pipes, Fittings & Valves, PP compression fittings & Valves, and sale of Plastic Pipe Welding machines, Pipe Tools, Pipe Repair Clamp and so on. If you need more details, please contact us +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Isikhathi sokuthumela: Mar-06-2025
