I-Norfolk County yidolobha elise-Ontario, eCanada. Yahlanganiswa yaba yidolobha elilodwa ngo-2001 elinabantu abangaphezu kuka-60,000. I-Norfolk itholakala kumakhilomitha angama-56 (amamayela angama-35) eningizimu-ntshonalanga yeHamilton namakhilomitha angama-97 (amamayela angama-60) eningizimu-mpumalanga yeLondon.
Lesi sifunda sisanda kuhlangabezana nempumelelo enkulu kumapayipi amanzi ensimbi angama-intshi angu-12. Lokhu ukuphela kwempahla evela emphakathini wasePort Rondon ukuya emphakathini wase-St. Williams, okusho ukuthi umthelela kubahlali mkhulu. Ithimba lasola ukuthi ukuvuza kwalo mzila kwakubangelwa umgodi, okuyimbangela evamile yokwehluleka kwamapayipi ensimbi. Ngesikhathi sokulungiswa, izisebenzi zamanzi zaveza ukuthi ngaphansi kwe-ductile iron water main ngokusobala kwakuwohlokile futhi kugqwalile.
Kuneminye imiphakathi eNorfolk, etholakala ezindaweni zemithombo ngokusebenzisa lezi zintambo zamapayipi amakhulu. Lezi zingosi zisengozini yokuhlaselwa ngenxa yokuphakelwa okukodwa kanye nokushoda kokuphinda kusetshenziswe. “Kusho uJeff Demeulemeester, uchwepheshe wobunjiniyela ogunyazwe eNorfolk kanye nomphathi wephrojekthi.
Uhlelo lwezimali lweminyaka eyi-10 lweNorfolk luyingxenye ebalulekile yohlelo lwayo lokusimama kwezezimali lwesikhathi eside futhi lugcizelela ukubaluleka kokuqinisekisa ukuqalwa, amaphrojekthi afakazelwe futhi athengekayo. Isimo samanje samapayipi amanzi kufanele siqondwe ukuze kuqinisekiswe ukugcinwa okuphumelelayo kokuvimbela.
Isifunda sithumele isicelo seziphakamiso zokuhlola isimo samapayipi aso amanzi. Ngemuva kwemizuliswano eminingi yokuhlola nokudingida, ubuchwepheshe bokuhlola isimo se-Echologics ePulse obungagadli obuhlinzekwe ngu-Mueller bukhethiwe ukuze kunqunywe isimo esikhona sesakhiwo futhi kutholwe noma yikuphi ukuvuza okukhona nokungajwayelekile.
Kule phrojekthi, i-Echologics ihlole cishe amakhilomitha angu-6.9 (amamayela angu-4.3) amaheda e-ductile iron gearbox ahamba kakhulu emgwaqeni ongaphambili. I-Norfolk ikhethe le ngxenye yepayipi ngenxa yokuntuleka kwayo kokuphinda isetshenziswe kanye nomlando wokuphazamiseka wangaphambilini. Njengoba ukwehluleka kwalo mzila kungase futhi kube nomthelela omkhulu kubahlali baseNorfolk, kwenziwa inhlolovo yokuhlolwa kwesimo ukuze kutholwe ukuthi ingabe zikhona yini izindawo ezikulolu chungechunge ezike zacekelwa phansi kakhulu. Ngokusekelwe emiphumeleni yocwaningo, i-AECOM Engineering Company incoma uhlelo olulandelayo lokuvuselela amapayipi njengoba kudingeka.
Umfanekiso 3. Uchaza isihlahla sesinqumo esenziwe ngokwezifiso sokukhetha indlela yokubuyekeza (ukulungisa nokushintsha) yezigaba zamapayipi angu-54 ngokusekelwe kumiphumela yokuhlola ye-ePulse..jpeg
Ubuchwepheshe be-ePulse bufinyelelwa ngokuxhuma izinzwa ezimbili ze-acoustic endaweni ngayinye yokuxhumana ekhona (njenge-hydrant yomlilo, i-valve noma ukuthintana ngokuqondile nodonga lwamapayipi). Amaza omsindo ayangeniswa epayipini, futhi isivinini sokusakazeka samaza omsindo silinganiswa phakathi kwezinzwa ezimbili zamaza omsindo.
Isivinini sokusakazwa kwegagasi lomsindo sincike esimweni sodonga lwamapayipi. Ngemva kokuqedwa komsebenzi osendaweni, isivinini somsindo sihlanganiswa nolunye ulwazi oluqoqwe esizeni (kuhlanganise nebanga nezinga lokushisa lamanzi), bese kusetshenziswa i-algorithm ethuthukisiwe yobunikazi ukuze kutholwe ukujiya kodonga olumaphakathi okusele kwengxenye ngayinye.
Le miphumela ihunyushwa ngokwezigaba ezintathu zokuthi “omuhle”, “omaphakathi” kanye “nompofu”. Izinga lokulimala odongeni elingaphansi kuka-10% liboniswa lihle; amaphesenti okulimala odongeni ukusuka ku-10% kuya ku-30% aboniswa njengephakathi; iphesenti elikhulu kunama-30% libhekwa “njengelibi”.
Umphathi wephrojekthi ye-AECOM u-Khalid Kaddoura uthe: “Umphumela ngamunye we-ePulse umele isimo esimaphakathi phakathi nesikhathi esiphakathi kwamaphoyinti amabili wokuxhuma izinzwa.” Amapayipi ashintshiwe ayabalwa. Ngale njongo, imiphumela ye-ePulse mihle kakhulu.”
Umfanekiso 2: Inzwa ixhunywe ngozibuthe ku-valve futhi ikhebula lixhunywe kusidlulisi ukuze kuhlolwe isimo se-acoustic.
Ingxenye yesibili yephrojekthi idinga ukuphenywa kokuvuza nezimo ezingavamile ukuba kuqedwe ngesikhathi esifanayo nokuhlolwa kwesimo. Lokhu kuyinzuzo yokusebenzisa i-ePulse ngoba isixhumi se-acoustic esifanayo singasetshenziswa ukwenza ukuhlola nokutholwa kokuvuza ngesikhathi esisodwa.
Ngemva kwesikhathi sokuhlola sezinsuku eziyi-12, imiphumela ye-ePulse yabonisa ukuthi izingxenye zenethiwekhi ezingu-12 kwezingu-54 zazisesimweni esibi, nokulahlekelwa okuphakathi kodonga okungaphezu kuka-30%. Ngaphezu kwalokho, kunemikhakha engama-30 esimeni esimaphakathi, futhi ukujiya kodonga lwangempela kulahlekelwe ngo-10% kuya ku-30%. Ezinye izingxenye zenethiwekhi eziyi-11 zisesimweni esihle, ukuncipha kodonga lwangempela kungaphansi kuka-10%, futhi ingxenye yenethiwekhi eyodwa esele ayikwazi ukusabalalisa imiphumela.
Akukho ukuputshuka okutholakele ngesikhathi sophenyo. Kodwa-ke, iphuzu lentshisekelo (POI) likhonjwe. Ilogo ye-POI ikhombisa ukuthi ezinye (kodwa hhayi zonke) zemibandela yomphumela wokuhlolwa ovuzayo zifinyelelwe. Uphenyo lwesibili kamuva lwaqinisekisa ukuthi umsindo wokuvuza usuka kuvalvu yokusiza ingcindezi yokusebenza emthonjeni wemitha.
UDemeulemeester uthe: “Sijabule kakhulu ngokuthi iphrojekthi isinikeze imininingwane esiyidingayo ukuze sibeke phambili futhi sibeke uhlelo olufundile lokushintshwa olusekelwe ekugqileni kodonga olusele lwepayipi lamanzi.” “Ngaphezu kwalokho, izindleko zokuhlola zibhekwa njengezingelutho ngoba zinikeze iNorfolk County ngedatha edingekayo ukuze kubekwe eqhulwini ukushintshwa kwenethiwekhi yethu eyinhloko yokudlulisela phambili ngohlelo lwemali yeminyaka eyi-10. Ngokusekelwe kushejuli yokushintsha “ebaluleke kakhulu,” sikwazile ukugcina isikhathi ngohlelo lwezezimali oludingekayo oluvumelanayo.”
Ngokusekelwe emiphumeleni eqoqwe ithimba lenkundla ye-Echologics, i-AECOM ithuthukise isihlahla sesinqumo sokuvuselela ngokwezifiso kanye nezilinganiso ezithile zezindleko zesabelomali zezinhlelo zokuvuselela. Kuhlanganiswe nemiphumela yokuhlola ye-ePulse, isihlahla sesinqumo sisekelwe ezigabeni ezintathu zezimo ezilandelayo: ezinhle, eziphakathi nendawo nezimbi.
Ezigabeni ezimbili zokuqala zokuhle nezimaphakathi, kunconywa ukuhlola ukusebenza kwe-hydraulic yamapayipi amanzi. Uma iwela ngaphakathi kwebanga elamukelekayo, ukuhlolwa okwengeziwe kuzokwenziwa ukuhlola izici zamanzi. Uma izinga lamanzi lingahlangabezani nezindinganiso zendawo, ukungenelela kokuvuselela kuyanconywa.
Ngakolunye uhlangothi, uma ukusebenza kwe-hydraulic yepayipi yamanzi kungamukeleki noma kunqunywa ukuthi kusesimweni esibi, kunconywa ukuthi kuthathelwe indawo amandla we-hydraulic, uma kudingeka amandla amaningi we-hydraulic. Uma umthamo we-hydraulic wanele, cabanga ukubuyekeza ikesi lobuchwepheshe ngecala ngokusekelwe ekuhlaziyweni kwezindleko kanye nendawo yaphansi yesakhiwo.
Ngemva kokuba iphrojekthi isiqediwe, iSifundazwe saseNorfolk sihlela ukushintsha izingxenye zamapayipi ezisesimweni esingesihle futhi sinquma ukushintshwa kwezingxenye zamapayipi ezengeziwe ohlelweni lwaso lwemali yeminyaka eyi-10.
PE, u-Alain Lalonde ungumphathi wesifunda we-Echologics e-Mueller, e-Canada. Ungaxhumana no-Lalonde nge-[Ukuvikelwa kwe-imeyili].
Abasebenzi be-“Water and Waste Digest” bamema ochwepheshe bemboni ukuthi baqoke amaphrojekthi amanzi namanzi angcolile avelele kakhulu futhi anobuhlakani abacabanga ukuthi aqashelwa “Kumhlahlandlela Wonyaka Wereferensi.” Ezinyangeni eziyi-18 ezedlule, wonke amaphrojekthi kufanele abe sesigabeni sokuklama noma sokwakha.
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Isikhathi sokuthumela: Mar-08-2021
