Iintambo zangaphantsi kwamanzi zidlala indima ebalulekileyo kunxibelelwano lwehlabathi, zithwele idatha eninzi kwiilwandlekazi. Ukukhetha imathiriyeli efanelekileyo kwezi ntambo kubalulekile ukuze kuqinisekiswe ukuqina kwazo, ukusebenza kwazo, kunye nokuthembeka kwiimeko ezinzima eziphantsi kwamanzi. Kweli nqaku, siza kuphonononga imingeni ebandakanyekayo ekukhetheni izixhobo zeentambo zangaphantsi kwamanzi kwaye sixoxe ngezisombululo ezinokunceda ekwenzeni izigqibo ezizizo.
Ukuxhathisa ukonakala:
Omnye wemingeni ephambili kuyilo lweentambo zangaphantsi kwamanzi kukuhlwa. Iintambo zisesichengeni samanzi olwandle, nto leyo enokubangela umonakalo omkhulu wokonakala ekuhambeni kwexesha. Ukukhetha izixhobo ezinokumelana nokugqwesa okugqwesileyo kubalulekile kubomi obude bekhebula. Izisombululo ezinjengokusebenzisa ingxubevange enganyangekiyo njengentsimbi engatyiwayo okanye ukusebenzisa iileyiti ezikhethekileyo kunokubonelela ngokhuseleko olusebenzayo kumhlwa.
Amandla oomatshini:
Iintambo zangaphantsi kwamanzi kufuneka zimelane noxinzelelo olukhulu kunye noxinzelelo lomatshini ngenxa yemisinga yolwandle, amaza kunye nobunzima bamanzi. Ukukhetha iMathiriyeli yeeNtyibilizi zeNxweme ezomeleleyo ezinoomatshini abaphezulu kubalulekile ukuqinisekisa ukuba iintambo ziyakwazi ukumelana nala mandla ngaphandle kokubeka esichengeni isidima sazo. Izinto zokuqina eziphakamileyo ezifana neentsinga ze-aramid kunye neepholima ze-carbon fibre-reinforced polymers (CFRP) zidla ngokusetyenziswa ukukhulisa iipropathi zoomatshini zeentambo zangaphantsi kolwandle.
Ukuthintelwa kwamanzi kunye nokugquma:
Ukugcina i-insulation efanelekileyo kunye neempawu zokuthintela amanzi kubalulekile ukukhusela ukungena kwamanzi kunye nokukhusela izinto zangaphakathi zentambo. I-Polyethylene, i-polypropylene, kunye ne-cross-linked polyethylene (XLPE) ziqhelekileyo zisetyenziselwa ukugquma kunye neengqimba zokuthintela amanzi kwiintambo zangaphantsi kwamanzi. Ezi zixhobo zibonelela ngeempawu ezigqwesileyo zokufakelwa kombane kwaye zinokuxhathisa ukungena kwamanzi, ziqinisekisa ukusebenza kakuhle kwekhebula kunye nokuphila ixesha elide.
Ukuguquguquka kunye nokuGobela iRadiyosi:
Iintambo zangaphantsi kwamanzi zihlala zifuna ukuba bhetyebhetye kwaye zikwazi ukumelana nokugoba okuphindaphindiweyo ngaphandle kokubeka esichengeni ukusebenza kwazo. Izinto ezisetyenziswa kwiiCables zangaphantsi kwamanzi ezinokuguquguquka okuphezulu kunye nokuqina okuphantsi kokugoba, njengeentlobo ezithile ze-polyurethane kunye ne-elastomers, ziqhelekileyo zisetyenziselwa ukuqinisekisa ukuba iintambo zingafakelwa kwaye zigcinwe kwiimeko ezahlukeneyo zangaphantsi kwamanzi ngelixa zigcina ingqibelelo yazo yombane kunye noomatshini.
Uzinzo lweThermal:
Iintambo zangaphantsi kwamanzi zinokuba neenguqu ezibalulekileyo zobushushu kwiindawo eziphantsi kwamanzi. Kubalulekile ukukhetha iMathiriyeli yeeNdwendwe zangaphantsi kwamanzi ezinozinzo olubalaseleyo lwe-thermal ukuqinisekisa ukuba iintambo ziyakwazi ukumelana nolu tshintsho lobushushu ngaphandle kokuchaphazela ukusebenza kwazo. Iimathiriyeli ze-Thermoplastic ezifana ne-polyethylene kunye ne-polypropylene zinika uzinzo olufanelekileyo lwe-thermal, zibenza ukhetho olufanelekileyo lokugquma kunye neengqimba ze-sheathing.
Isiphelo:
Ukukhetha imathiriyeli efanelekileyo kwiintambo zangaphantsi kwamanzi yinkqubo ebaluleke kakhulu ebandakanya ukuqwalaselwa kwemingeni engqamene nemo engqongileyo engaphantsi kwamanzi. Ngokujongana nemiba efana nokuchasana nokugqwala, amandla omatshini, ukuvala amanzi, ukuguquguquka, kunye nokuzinza kwe-thermal, abavelisi bekhebula kunye nabaqhubi banokuqinisekisa ukusebenza kakuhle kunye nokuphila ixesha elide kweentambo zangaphantsi kwamanzi. Ukuqonda le mingeni kunye nokuphumeza izisombululo ezifanelekileyo zezinto eziyimfuneko kunxibelelwano oluthembekileyo nolusebenzayo lwehlabathi jikelele.
Ixesha lokuposa: May-02-2023