Kwiminyaka elikhulu eyadlulayo, iinjineli zaseMelika ezizinikeleyo zafaka umbhobho wentsimbi ukwenza iinkqubo zamanzi zeli lizwe.Le mveliso yomelele, ikhuselekile, nethembekileyo iye yamelana novavanyo lwexesha.YangokuUmbhobho wentsimbi weNsimbiyenziwe ukuba ihlale ngaphezulu kweminyaka eli-100, kwaye iyimveliso ekhethwayo kokusingqongileyo ngenxa yesiqulatho sayo esisetyenzisiweyo, ukonga amandla ngelixa sikwinkonzo, ukuqina kwayo, ukusetyenzwa kwayo kwakhona nangenxa yokuzinikela koshishino lweMibhobho yeIron eDuctile.
Izibonelelo ziquka:
Ifuna ulungiso oluncinane kakhulu yakube ifakiwe kwaye iyilelwe ukuhlala ubuncinci iminyaka eyi-100.
Ngokwengxelo yakutshanje ye-American Water Works Association, ubomi benkonzo eqikelelweyo ye-Ductile Iron Pipe yanamhlanje ubuncinci iminyaka eyi-105.Kukho umbhobho wentsimbi ongaphezulu okwinkonzo e-US kunayo nayiphi na enye imathiriyeli yombhobho, kwaye iDuctile Iron Pipe inobomi benkonzo ende kuyo nayiphi na imathiriyeli kwimarike namhlanje.
Ukuba ne-98% yomxholo osetyenzisiweyo, iDuctile Iron Pipe yona ngokwayo iyi-100% yemathiriyeli enokuphinda isetyenziswe.
2. Iindleko eziphantsi ukusuka kumthamo wokuhamba okwandisiweyo zikhokelela ekugcinweni kwamandla okubalulekileyo ngexesha lokuphila kombhobho kwinkonzo.I-Ductile Iron yonga imali.
Yomelele ngokwaneleyo ukujamelana neemeko ezinzima kakhulu, ukusuka kwizicelo zoxinzelelo oluphezulu, emhlabeni onzima kunye nemithwalo yezithuthi, kwiimeko zomhlaba ezingazinzanga.
3. Iyamelana nokuhlwa kwimihlaba emininzi, kwaye ngokuqhelekileyo ifuna kuphela i-polyethylene encasement esebenzayo, enoqoqosho, i-sheathing ekhululekile esemgangathweni yi-American Water Works Association, kwiindawo ezinobundlobongela.
Ngamandla ayo, ukuqina, kunye noyilo olugcinayo, i-Ductile Iron ngumbhobho okhethiweyo wokukhusela ngokuchasene nokunyuka kunye noxinzelelo olwandisiweyo lokulayishwa kwiminyaka.
4. Ukufakela kulula kwaye kukhuselekile kubasebenzi abanokusika kunye nokucofa iDuctile Iron Pipe kwisiza.
5. I-Ductile Iron Pipe inombhoxo kwaye imelana nomonakalo ngexesha lokuphatha kunye nokufakwa.
6. Ubume benkcenkce boMbhobho weNtsimbi weNtsimbi kuthetha ukuba umbhobho unokubekwa lula phantsi komhlaba kunye neendawo zokukhangela imibhobho eqhelekileyo.
Iingozi zokusebenzisa iPVC
Iinkxalabo ezinzulu, ezikhathaza kakhulu kunye neziqinisekisiweyo zempilo zinxulunyaniswa ne-polyvinyl chloride (PVC).Iinkxalabo zikhulu kangangokuba izixeko, iidolophu kunye neenkampani kwihlabathi jikelele ziyayivala okanye ziyayinqanda ukusetyenziswa kwayo.
1. Imveliso yePVC idala iikhemikhali ezinobungozi ezifana ne-dioxins kunye nezinye iitoxin ezibonakaliswe ukuba zibangela umhlaza kunye neziphene zokuzalwa.Enyanisweni, “amaqela omhlaza” afunyenwe kufutshane nemizi-mveliso evelisa iPVC.
Ngelixa umzi-mveliso wombhobho wePVC ujonga imveliso yawo njengenye indlela ephezulu kwiDuctile Iron Pipe, iinyani zibonisa ngenye indlela:
2. Umbhobho wePVC ubuthathaka.Ayinakumelana noxinzelelo, ngakumbi uxinzelelo oluqhelekileyo olwahlulayo olukhokelela kumanqaku abuthathaka asekuhlaleni.
Ubude bombhobho wePVC buxhomekeke kuxinzelelo kunye nexesha-uxinzelelo olukhulu, ngokukhawuleza luya kuphumelela.
3. Umbhobho we-PVC unomdla kumaqondo obushushu aphantsi (kumaqondo aphantsi, i-PVC iya ikhula ngokukhawuleza kwaye inokuphuka ngokulula, ngelixa i-PVC iyancipha ngakumbi kwiindawo ezifudumeleyo).
4. Umbhobho we-PVC ulahlekelwa amandla empembelelo xa ubonakaliswe kwimitha ye-ultraviolet - i-PVC inokulahlekelwa ukuya kwi-34% yamandla ayo empembelelo emva konyaka omnye wokuvezwa kwimitha ye-UV.
5. I-PVC ineendleko eziphezulu zokumpompa kunye namandla.Kubiza kakhulu ukumpompa ngombhobho wePVC kunoMbhobho weIron oDunctile kuba uMbhobho weIron oDunkiweyo unobubanzi obukhulu ngaphakathi.
6. Umbhobho wePVC unzima kakhulu ukuyifaka.Ifuna i-backfill enkulu ngakumbi, kwaye kufuneka ifakwe ngocingo lokulandela ukuqinisekisa ukuba inokufumaneka kwixesha elizayo.
7. Umbhobho wePVC uchaphazeleka kumonakalo ovela kwihlabathi langempela lokuthumela kunye neemeko zokuphatha.Umkrwelo onzulu kunobungqingqwa be-dime unokubeka esichengeni ubude bonke bombhobho wePVC.
8. Ukucofa umbhobho wePVC kunzima kwaye kuthatha ixesha kwaye kunokuba yingozi - okukhokelela ekuqhekekeni kwemibhobho, abasebenzi abalimele, kunye nokulahlekelwa okukhulu kwamanzi.
9. Ukufumana indawo evuzayo kumbhobho wePVC kunzima kakhulu.Inkoliso yeendlela zokufumana indawo iquka ukusasaza amaza esandi ezantsi kombhobho, amaza esandi angahambi kakuhle kumbhobho weplastiki.
10. Umbhobho we-PVC uchaphazeleka ngokuphindaphindiweyo kwi-chain chain chain, ebangele "i-force majeure" ezininzi izaziso zokulahlekelwa kwamandla okuvelisa kubathengi bayo.
Ixesha lokuposa: Dec-11-2020