Ingabe i-Ductile Iron ingcono kune-PVC?

Emaphrojekthini okusiza abantu basemadolobheni kanye nokwakhiwa kwenethiwekhi enkulu yokuphakelwa kwamanzi, ukukhetha izinto zamapayipi kuthinta ngqo izindleko zokusebenza nokugcinwa kanye nokuphepha kokuphakelwa kwamanzi amashumi eminyaka ezayo. Amapayipi e-PVC, ngenxa yokumelana kwawo okulula nokugqwala, ake aba inketho ephikiswana ngayo kakhulu emakethe.

Kodwa-ke, uma sidlula imikhawulo "yezindleko zokuthenga zokuqala" futhi sihlola inkinga ngombono wokumelana nokucindezela, ukumelana nokuzamazama komhlaba kanye nezinhlekelele, kanye nezindleko zomjikelezo wokuphila, amapayipi ensimbi athambile abonisa inzuzo enkulu kakhulu.

Lesi sihloko sizohlaziya ngokujulile izizathu ezinhlanu eziyinhloko zokuthi kungani amapayipi ensimbi athambile engcono kunamapayipi e-PVC futhi sihlole ukuthi i-DINSEN, njengomhlinzeki wamapayipi amanzi asezingeni eliphezulu, iphakamise kanjani izinzuzo zendabuko zamapayipi ensimbi athambile kuya ezingeni elisha ngokuthuthukiswa kobuchwepheshe.

Yini eyesabeka kakhulu ngamanethiwekhi okuphakelwa kwamanzi? Ukuqhuma kwamapayipi.

Ijika lamandla e-hydrostatic lesikhathi eside lamapayipi e-PVC linquma ukuthi avame ukuqhekeka ngenxa yokuguquguquka okukhulu kwengcindezi noma imiphumela yesando samanzi. Ikakhulukazi ezindaweni ezibandayo, ukuqhekeka kwamapayipi e-PVC okushisa okuphansi kuyimingcele ebalulekile ekusetshenzisweni kwawo.

Izinzuzo zamapayipi ensimbi athambile: Amapayipi ensimbi athambile anamandla amakhulu okubamba kanye nokwelulwa (imfuneko ejwayelekile ≥10%). Lokhu kusho ukuthi amapayipi ensimbi athambile awagcini nje ngokuba “aqinile,” kodwa futhi anesici “sokunqoba ubulukhuni ngokuguquguquka.” Angamunca ngempumelelo imithwalo enamandla ebusweni bomgwaqo kanye nemithelela yesando samanzi, avimbele ukuqhuma kwamapayipi.

• Usekelo Lobuchwepheshe be-DINSEN: Ngezimo zokuphakelwa kwamanzi ezinomfutho ophezulu,Amapayipi ensimbi athambile e-DINSENdlula ezinqubweni eziqondile zokunamathisela ukuqinisekisa izinga lokushintshashintsha kwama-spheroid elingaphezu kuka-85% esakhiweni se-metallographic, okunikeza amapayipi amandla ensimbi kanye nokuqina kwensimbi.

Amanethiwekhi amapayipi asemadolobheni agqitshwe phansi kakhulu, abhekene nezinguquko zejiyoloji ezingalindelekile.

Amapayipi e-PVC ngokuvamile asebenzisa ukuxhumana okuguquguqukayo namasongo enjoloba. Nakuba enokuguquguquka okuthile, umzimba wepayipi ngokwawo une-modulus ephansi, okwenza kube lula ukuguquguquka kwemisebe ngokweqile ngesikhathi sokungalingani, okuholela ekuvuza emajoyintini noma ekungazinzini kwepayipi.

Izinzuzo Zamapayipi Ensimbi Ahlanganisiwe: Amapayipi e-DI asebenzisa ijoyinti yohlobo lwe-T noma ijoyinti yohlobo lwe-K. Lo mklamo uvumela ijoyinti ngalinye ukuthi likhulule cishe ama-degree angu-3-5 okugoba lapho ipayipi lihlangana nokuzamazama komhlaba noma ukufuduka komhlaba. Lonke ipayipi liyaguquguquka ngokugoba “njengedrako engaphansi komhlaba” ngaphandle kokuphuka. Leli zinga lokuphindaphindeka kokuzamazama komhlaba alinakuqhathaniswa namapayipi e-PVC enziwe ngento eyodwa.

Ngaphezu kwalokho, emigqeni emikhulu yamanzi aluhlaza kanye neyokudlulisa ye-DN300 nangaphezulu, izinzuzo zamapayipi ensimbi athambile anezingqimba zangaphakathi zibaluleke kakhulu. Nakuba i-PVC inodonga lwangaphakathi olubushelelezi kakhulu,ulwelwesi lwesamente oluyi-ductile ipayipi lensimbis bakha ungqimba lwe-calcification oluzinzile odongeni lwabo lwangaphakathi ngokuhamba kwesikhathi, okwenza ubuso bube bushelelezi ngokwengeziwe.

Okubaluleke kakhulu, amapayipi ensimbi athambile angamelana nesivinini esiphezulu se-centrifuge, aqinisekise ukujiya kodonga okufanayo futhi avimbele “ukugeleza” noma “ukuzwakala kwesando samanzi” okungenzeka ngamapayipi e-PVC ngezinga lokugeleza ngokweqile.

Ingabe insimbi ethambile ingcono kune-PVC?Njengonjiniyela bezobuchwepheshe e-DINSEN, singanikeza impendulo eqondile: ngemigqa yamanzi eyinhloko ehlelelwe ukusetshenziswa iminyaka engaphezu kwengu-50, amapayipi ensimbi athambile yiwona kuphela ikhambi elivuthiwe elihlanganisa amandla aphakathi kuya kwaphezulu, ukuqina okuphezulu, ukumelana nokuzamazama komhlaba, kanye nokugcinwa okuphansi. Ukuze uthole amanzi asemadolobheni aphephile, khethaAmapayipi ensimbi e-DINSEN athambile.