Iinjongo eziphambili zokuphucula ukusebenza kwenyikima kwemibhobho yokuhambisa amanzi zezimbini: enye kukuqinisekisa amandla okuhambisa amanzi, ukuthintela ukulahleka koxinzelelo lwamanzi kwindawo enkulu, ukuze kukwazi ukubonelela ngamanzi kumlilo nakwizibonelelo ezibalulekileyo ngexesha likaxakeka; eyesibini kukunciphisa umonakalo wombhobho ukuze kube lula ukulungisa ngokukhawuleza. Ngamanye amazwi, xa kujongwe iintlekele zenyikima, inkqubo yokuhambisa amanzi kufuneka ibe nokuguquguquka okuphezulu.
Ukuthintela ukuqhekeka kwamanzi kubalulekile ekugcineni ukusebenza okuqhelekileyo kwenkqubo yokubonelela ngamanzi. Inkqubo yemibhobho ye-PE4710 (elingana ne-PE100) inamathuba aphantsi okuqhekeka nokuvuza kunayo nayiphi na imibhobho yamanzi, nto leyo enceda ekufezekiseni zonke ezi njongo zingasentla.
Ukusasazeka kwamaza kunye nokuguquka komhlaba ngokusisigxina zezona zinto ziphambili zomonakalo ongaphantsi komhlaba. Ngenxa yokubakho kwamandla e-axial kunye noxinzelelo lokugoba, intshukumo yomhlaba ikhokelela kwiingxaki ze-axial kunye nokugoba kumbhobho. Izixhobo ezinobulukhuni obuphezulu (uxinzelelo oluphezulu oluvumelekileyo) ngokubanzi zinamandla amancinci okugoba. Izinto ezithambileyo ezimelwe yi-polyethylene (PE) (uxinzelelo oluphantsi oluvumelekileyo) zinamandla amahle okugoba kunye nokuqina.
Amandla okushukuma kweenkqubo zemibhobho abonakaliswa kukukwazi kwayo ukuziqhelanisa noxinzelelo lomphezulu. Ukushukuma kwenyikima okanye ukwanda kwamaza enyikima kunokubangela uxinzelelo emhlabeni ngokwaneleyo ukuba konakalise neepayipi ezisengozini kakhulu. Ukuqhekeka kwempazamo, ukudilika komhlaba, utshintsho lomhlaba ube ludaka kunye nokuhla okubangelwa kukuhlala kunye/okanye ukusasazeka ecaleni, ukuhla komhlaba kunye nokuphakama kunokubangela uxinzelelo olukhulu lomhlaba, okubangela umonakalo kwiindawo ezinkulu zemibhobho egqunywe. Itheyibhile B-1 idwelisa idatha yoxinzelelo lomhlaba ebonwe kwihlabathi liphela ngenxa yokuguquguquka komhlaba okusisigxina.
Itheyibhile B-1 Uxinzelelo lomhlaba oluqatshelweyo ngenxa yokuguquka komhlaba okusisigxina
Uluhlu olufunekayo loxinzelelo lomhlaba kwiipayipi luphakathi kwe-0.05% kunye ne-4.5%. Kwingxelo ka-2008 yi-American Electric Power Research Institute, imilinganiselo yomthamo woxinzelelo lwezinto ze-PE4710 inikwe. Kubushushu obungama-50°F (10°C), uxinzelelo oluqhelekileyo lwemveliso yoxinzelelo lwepayipi ye-PE4710 yi-9.9%, ngelixa uxinzelelo oluqhelekileyo loxinzelelo lokugqibela luyi-206%. Umbhobho we-polyethylene uya kuhamba ngokuphendula kwintshukumo yomhlaba, endaweni yokumelana nemithwalo enokubangela ukuba iipayipi eziqinileyo okanye ezibuthathaka ziqhekeke. Kwiimeko ezininzi zenyikima, umbhobho we-polyethylene (HDPE) odityanisiweyo (odityanisiweyo) oxineneyo (odityanisiweyo) uya kugoba, kodwa awuyi kwaphuka okanye wahlukanise (unxibelelwano olungatywinwanga), ngaloo ndlela ugcine unikezelo lwamanzi oluqhelekileyo. Kufuneka kuqatshelwe ukuba zonke iintambo ze-PE nezinye izakhiwo, izibonelelo ezincedisayo kunye nezinto ezisetyenziswayo zinokuba phantsi kwemithwalo ephezulu yokwahluka. Uqhagamshelwano lwala macandelo kufuneka lucwangciswe ngononophelo kwaye luyilwe ukunciphisa umngcipheko wokuqhekeka.
Uxinzelelo lwe-tensile yield lombhobho we-PE4710 luphantse luphindwe kabini kunoxinzelelo lomhlaba olubangelwa bubukhulu obubonakalayo, kwaye uxinzelelo lokugqibela lwe-PE4710 lungaphezulu kwezihlandlo ezingama-40 kunoxinzelelo lomhlaba oluphezulu. Ukusebenza okufunyenwe ngokubala kwethiyori kuhambelana nokusetyenziswa kombhobho we-polyethylene kwinyikima. Umgca wokuhambisa amanzi we-HDPE odibeneyo usebenze kakuhle kwinyikima. Itheyibhile B-2 inika ukuqwalaselwa okuncinci kweenyikima zangaphambili eJapan (Omuro noHimono, 2018).
Itheyibhile B-2 Idatha ebonwe ngexesha leenyikima zomhlaba zangaphambili eJapan
Ukusebenza kwe-seismic kwemibhobho kufuneka kuhlolwe, kubandakanya ukuqina, amandla oxinzelelo lwe-axial, i-radius evumelekileyo yokugoba, amandla edibeneyo, uzinzo kunye nemeko yepayipi ekhoyo. Inani elikhulu lamava e-seismic libonisa ukuba imibhobho ephambili yokuhambisa amanzi ye-HDPE ngokuhambelana nemigangatho yochungechunge lwemibhobho ye-ASTM inokugcina ukusebenza okuqhelekileyo phantsi kweemeko ezininzi zomthwalo we-seismic. Xa iimfuno zokusebenza kwe-seismic zombhobho oyintloko wokuhambisa amanzi ziphezulu, ukusetyenziswa kwemibhobho ye-HDPE edibeneyo kufuneka kuqwalaselwe, kuba ukusebenza kwe-seismic kwemibhobho ye-HDPE kuthembekile ngakumbi, kwaye inokuziqhelanisa neentlobo ezahlukeneyo zomhlaba eziveliswa ziinyikima kwaye igcine ukusebenza okuqhelekileyo.
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
Ixesha leposi: Matshi-06-2025
