Izinhloso eziyinhloko zokuthuthukisa ukusebenza kokuzamazama kwamapayipi okuphakelwa kwamanzi zimbili: eyodwa ukuqinisekisa amandla okudlulisa amanzi, ukuvimbela indawo enkulu yokulahlekelwa umfutho wamanzi, ukuze ukwazi ukuphakela amanzi emlilweni nasezindaweni ezibalulekile eziphuthumayo; eyesibili ukunciphisa umonakalo wepayipi ukuze kube lula ukulungisa ngokushesha. Ngamanye amazwi, lapho kubhekene nezinhlekelele zokuzamazama komhlaba, uhlelo lokuphakelwa kwamanzi kufanele lube nokuzivumelanisa nezimo okuphezulu.
Ukuvimbela ukuqhekeka kwamanzi okuyinhloko kubalulekile ekugcineni ukusebenza okuvamile kohlelo lokuphakelwa kwamanzi. Uhlelo lwamapayipi lwe-PE4710 (olulingana ne-PE100) lunamathuba aphansi kakhulu okuqhekeka nokuvuza kunanoma yiliphi ipayipi lamanzi, okusiza ukufeza zonke izinhloso ezingenhla.
Ukusabalala kwamagagasi kanye nokuguquka komhlabathi unomphela yizona zimbangela eziyinhloko zomonakalo wepayipi eligqitshwe phansi. Ngenxa yokuba khona kwamandla e-axial kanye nokucindezeleka kokugoba, ukunyakaza komhlabathi kuholela ekucindezelweni kwe-axial kanye nokugoba epayipini. Izinto ezinokuqina okuphezulu (ukucindezeleka okuphezulu okuvunyelwe) ngokuvamile zinekhono elilinganiselwe lokuguguleka. Izinto ezithambile ezimelelwa yi-polyethylene (PE) (ukucindezeleka okuphansi okuvunyelwe) zinekhono elihle lokuguguleka kanye nokuqina.
Amandla okuzamazama komhlaba ohlelweni lwamapayipi abonakala ngokuzivumelanisa kwawo nobunzima bomphezulu. Ukuzamazama komhlaba noma ukusabalala kwamagagasi okuzamazama komhlaba kungabangela ubunzima emhlabathini ngokwanele ukulimaza ngisho namapayipi asengozini kakhulu. Ukuqhekeka kwamaphutha, ukudilika komhlaba, ukushintsha kwenhlabathi ibe udaka kanye nokuhlaliswa okubangelwa yilokhu kanye/noma ukusabalala kwezinhlangothi, ukwehla komhlaba kanye nokuphakama kwawo kungabangela ubunzima obukhulu bomhlabathi, okuholela ekulimaleni kwezindawo ezinkulu zamapayipi agqitshwe. Ithebula B-1 libala idatha yobunzima bomhlabathi ebonwe emhlabeni wonke ngenxa yokuguquguquka komhlaba okungapheli.
Ithebula B-1 Ukucindezeleka komhlaba okubonwe ngenxa yokuguquka komhlaba okuhlala njalo
Ububanzi obudingekayo bokucindezeleka komhlabathi wamapayipi buphakathi kuka-0.05% no-4.5%. Embikweni ka-2008 we-American Electric Power Research Institute, kwanikezwa izilinganiso zomthamo wokucindezeleka wezinto ze-PE4710. Ekushiseni okungu-50°F (10 ° C), ukucindezeleka okujwayelekile kokukhiqiza ukucindezela kwepayipi le-PE4710 kungu-9.9%, kuyilapho ukucindezeleka okujwayelekile kokucindezela kungu-206%. Ipayipi le-polyethylene lizohamba ngokuphendula ukunyakaza komhlabathi, kunokuba limelane nemithwalo engabangela ukuthi amapayipi aqinile noma aqhekeke. Ezimweni eziningi zokuzamazama komhlaba, ipayipi le-polyethylene (HDPE) elihlanganisiwe (elihlanganisiwe) elinobukhulu obuphezulu lizogoba, kodwa ngeke liphuke noma lihlukanise (ukuxhumeka okungavali), ngaleyo ndlela ligcine ukutholakala kwamanzi okuvamile. Kufanele kuqashelwe ukuthi konke ukuxhumana kwamapayipi e-PE nezinye izakhiwo, izikhungo ezisekelayo kanye nezingxenye kungase kube ngaphansi kwemithwalo ephezulu yokwehluka. Ukuxhumeka kwalezi zingxenye kufanele kuhlelwe ngokucophelela futhi kuklanywe ukuze kuncishiswe ingozi yokuqhekeka.
Ukucindezeleka kokudonsa kwepayipi le-PE4710 cishe kuphindwe kabili kunokucindezeleka komhlaba okubangelwa ubukhulu obukhulu obubonwe, kanti ukucindezeleka kokugcina kwe-PE4710 kungaphezu kokuphindwe ka-40 kunokucindezeleka komhlaba okuphezulu. Ukusebenza okutholwe ngokubala kwethiyori kuhambisana nokusetshenziswa kwepayipi le-polyethylene ekuzamazameni komhlaba. Umugqa wamanzi we-HDPE ohlanganisiwe wenze kahle ekuzamazameni komhlaba. Ithebula B-2 linikeza ukubonwa okuyingxenye kokuzamazama komhlaba okwedlule eJapane (Omuro noHimono, 2018).
Ithebula B-2 Idatha ebonwe ngesikhathi sokuzamazama komhlaba okwedlule eJapane
Ukusebenza kokuzamazama kwamapayipi kufanele kuhlolwe, okuhlanganisa ukuqina, umthamo wokucindezela kwe-axial, irediyasi yokugoba evumelekile, amandla amalunga, ukuzinza kanye nesimo sepayipi esikhona. Inani elikhulu lokuhlangenwe nakho kokuzamazama komhlaba libonisa ukuthi amapayipi amakhulu okuphakelwa kwamanzi e-HDPE ngokuhambisana namazinga ochungechunge lwamapayipi e-ASTM angagcina ukusebenza okuvamile ngaphansi kwezimo eziningi zomthwalo wokuzamazama komhlaba. Lapho izidingo zokusebenza kokuzamazama komhlaba kwepayipi elikhulu lokuphakelwa kwamanzi ziphezulu, ukusetshenziswa kwamapayipi e-HDPE ahlanganisiwe kufanele kucatshangelwe, ngoba ukusebenza kokuzamazama komhlaba kwamapayipi e-HDPE kuthembekile kakhulu, futhi angazivumelanisa nezinhlobo ezahlukene zomhlaba ezibangelwa 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 sokuthunyelwe: Mashi-06-2025
