Ukhetha Kanjani Umthengisi Wamathangi Okuhlanza Ukungcola
Kwadalwa ngo Ngokwamukisa
Ukhetha Kanjani Umthengisi Wethangi Lokuhlanza Ukungcola?
Izinkontileka zamathangi endle zivame ukunqunywa ngentengo, futhi amathangi endle ngokuvamile ayimpahla okufanele ihlale iminyaka engamashumi amathathu ngaphandle kokuthi igezwe nje futhi ibhekwe kanye ngonyaka. Isicelo eshibhile esihambisana nemithetho kanye nesicelo esinenani elingcono kakhulu zihlukana ezintweni ezingabonakali ohlelweni lwentengo: ukuthi ukupenda kwenziwe ngubani, ukuthi ukuhlaziywa kwenziwe yini, nokuthi umthengisi uzophendula yini ucingo ngonyaka weshumi nambili.
Ukukhetha kahle akunzima, kodwa kudinga ukuthi ucele amadokhumenti kunokuba uthembe iziqinisekiso. Ukuhlola okuyisithupha ngezansi kwehlukanisa abakhiqizi abasekela umkhiqizo wabo kubathengisi abamane bawudayise, futhi kungenziwa ngemini eyodwa yokubuyekeza izinkontileka.
1. Yiliphi Ikhono Lobunjiniyela Okufanele Ulibize?
Umthengisi kufanele akwazi ukuklama ithangi lasiza nesiza sakho nendle yakho, hhayi nje ukuphinda usayizi ovela ekhasilogini.
· Ukuqonda Umsebenzi: Umsebenzi wendle yokulahla indle kusho i-hydrogen sulphide, i-grit, i-scum kanye nomthwalo wokushisa. Umhlinzeki ongabuzi ngamazinga e-H2S noma okuqukethwe kwe-grit akaklanyeli umsebenzi.
· Amakhodi Okuklama Nokuhlaziya: Izibalo ezivaliwe ku-AWWA D103-09 noma i-EN 1993 enemimoya, ukuzamazama komhlaba, i-vacuum kanye nezimo zomthwalo wokushisa ezishiwo.
· Ukukhetha Uhlelo Lokufaka Umbala: Ukukhetha okufanele phakathi kwe-glass-fused-to-steel, i-fusion bonded epoxy kanye ne-stainless kuthangi ngalinye embonini, kucatshangwe ngamakhemikhali kunangentengo.
· Ukuqina Kwegesi Nokuklama Iphunga: Izembozo, izivalo, izindawo zokungena kanye nezindawo zokuqoqa igesi ziklanywe njengohlelo lapho kudingeka khona ukulawula iphunga.
· Isisekelo Nephakheji Lokuxhumana: Amatafula omthwalo, izakhiwo zama-anchor kanye nemibandela yokuhlala kukhishwa nethangi kunokuba kushiywe ukuqagela.
2. Yiluphi Ufakazelo Lwekhwalithi Okufanele Ulifune?
Amadokhumenti ongawahlola. Uma irekhodi lingakwazi ukukhiqizwa, ukulawula okuhambisanayo akuzange kwenziwe.
· Ubunikazi Bomugqa Wokumboza: Qinisekisa ukuthi umkhiqizi usebenzisa isithando sakhe sokushisisa i-enamel. Amaphaneli akhiqizwa ngaphandle asho ukulawulwa kwangaphandle kokushisisa, ukujiya kanye nokuhlolwa.
· Amarekhodi Okumboza Kwephaneli Ngalinye: Ukufundwa kokujiya, izinga lokulungiswa kwendawo kanye nemiphumela yokuhlolwa kwe-holiday nge-voltage eshiwo, erekhodwa ngokuphambene nezinombolo zamaphaneli.
· Izitifiketi Zensimbi Nezibhawudo: Izitifiketi zamapuleti e-EN 10204 3.1 kanye nezitifiketi zebhawudi ze-Grade 8.8 noma ezilinganayo.
· Izitifiketi: I-ISO 9001 ne-ISO 45001 yohlelo lokulawula, i-ISO 28765 yokufaka ukugoqwa, i-EN 1090 yokwenza insimbi, kanye ne-NSF/ANSI 61 lapho kudingeka khona ukusetshenziswa kwamanzi okuphuzwayo.
· Ukuhlolwa Ngemva Kokumiswa: Ukuzibophezela ekuhloleni kabusha ukuqhubeka kokugoqwa ngemva kokumiswa nangaphambi kokugcwalisa.
3. Yiziphi Izimo Zokuhweba Ezikuvikelayo?
Izimo ezintathu zibaluleke kakhulu kunentengo: ukuqiniseka kokulethwa, ikhono lokufaka, nokuqina kwewaranti.
· Ukuqiniseka Kokulethwa: Isikhathi esishiwo sokukhiqiza, indlela yokupakisha, namadokhumenti okuthumela ngaphandle, nezinkomba zokulethwa ngesikhathi ezindaweni ezifanayo.
· Ikhono Lokufaka: Isitatimende sendlela, ukuqinisekiswa kwabasebenzi kanye nokukhetha ukugadwa yifektri - amathangi endle yokulahla indle awavamile ukwakhiwa ngempumelelo yisebenzi elingaqeqeshiwe.
· Iwaranti Nezinsiza: Iwaranti yeminyaka eminingi ehlanganisa ukusebenza kokumboza, isikhathi esichaziwe sokuphendula, kanye nekhithi yezinsiza ehlanganisa isivalo kanye nezinto zokulungisa ezigunyaziwe.
· Izinkomba Eziqhathanisekayo: Amaphrojekthi anomthamo nomsebenzi ofanayo, kanye nokuxhumana nabaqhubi kunokuthatha izithombe.
· Ukuzinza Kwezezimali: Impahla yeminyaka engamashumi amathathu idinga umhlinzeki ozoba khona ukuze ahloniphe iwaranti.
Indlela Yokuhlola | Okufanele Ukubuze | Isixwayiso |
Ulayini wokumboza | Ingabe ungumnikazi futhi uyawusebenzisa umthando? | Amaphaneli athengwe emthonjeni ongashiwo |
Amandla okuklama | Bonisa izibalo ezivaliwe ezinazo zonke izimo zomthwalo | Ukukala ngomthamo ngaphandle kokuhlaziya |
Amarekhodi ekhwalithi | Amarekhodi obukhulu bephaneli ngalinye kanye namalogo eholide | Izitifiketi eziyisifinyezo ngaphandle kwedatha |
Izinkomba eziqhathanisekayo | Umthamo nomsebenzi ofanayo, umqhubi atholakale | Amaphrojekthi amancane noma angahlobene kuphela |
Ukuqiniseka kokulethwa | Isikhathi sokuletha, ukupakisha kanye nesethi yamadokhumenti ngokubhala | Izithembiso zokulethwa ezingacacile |
Iwaranti | Iminyaka eminingi, ehlanganisa ukusebenza kokufakwa kopende | Izinyanga eziyishumi nambili, umsebenzi kuphela |
Ukuqinisekiswa kobunjiniyela nokusekelwa kwephrojekthi
Wonke ithangi elethwa yi-Shijiazhuang Zhengzhong Technology Co., Ltd. (Center Enamel) lakhiwe ngokuqinisekisa i-AWWA D103-09 kanye ne-EN 1090 ngokuqinisekiswa kwe-finite element yomzimba, uphahla kanye nemithwalo ye-nozzle, lihlanganiswe ngezinga lokushisa elingu-820-930°C ngaphansi kokulawulwa kwe-ISO 9001 kanye ne-ISO 45001, lihlolwe nge-holiday test ku-1500 V kuyo yonke ingaphezulu elingamaphesenti ayikhulu, futhi lihlanganiswe ngamabhawudi e-Grade 8.8 kanye ne-sealant eqinisekiswe ngumkhiqizi. Izimpendulo ze-tender zifaka izibalo zokuklama ezivaliwe, amarekhodi okufaka umbozo, amakhophi eziqinisekiso, izinhlu zokufanisa eziqhathanisekayo ezinemininingwane yabaphathi, kanye newaranti echaziweyo nephakheji lezinsimbi eziyisipele.
Ingabe umhlinzeki wamathangi kufanele abe nomugqa wakhe wokufaka ukugoqwa?
Yebo. Ikhwalithi yokugoqwa inqunywa ukulawulwa kwezinga lokushisa lokushisa, ukusetshenziswa nokuhlolwa. Umhlinzeki othenga amaphaneli angakwazi ukulawula noma yiliphi lawo futhi akakwazi ukukhiqiza amarekhodi afakazela ukuthi umsebenzi wenziwe.
Yimaphi amarekhodi ekhwalithi okufanele ngiwafune?
Ukuqina kokugoqwa kwephaneli ngalinye kanye namarekhodi okuhlolwa kweholide nge-voltage eshiwo, izinga lokulungiswa kwendawo, izitifiketi ze-EN 10204 3.1 zomshini, izitifiketi zamabhodi, izibalo zokuklama ezivaliwe, nokuzibophezela ekuhloleni kabusha ngemva kokumiswa.
Kubaluleke kangakanani ukubhekisela kwephrojekthi okufanayo?
Kubaluleke kakhulu. Umhlinzeki owake wakha amathangi anomthamo ofanayo endle efanayo useke wahlangabezana nezinkinga zetshe, isikhunta kanye nesulfide ozobhekana nazo esitshalweni sakho. Hlala ubuza abathintwayo babasebenzi, hhayi izithombe.
Very. A supplier who has built tanks of similar capacity on similar sewage has already encountered the grit, scum and sulphide problems your plant will face. Always ask for operator contacts, not photographs.
Yiziphi izitifiketi ezibalulekile kumathangi endle?
I-ISO 9001 ne-ISO 45001 yezinhlelo zokuphatha, i-ISO 28765 yokumbozwa kwe-enamel, i-EN 1090 yokwenziwa kwesakhiwo sensimbi, kanye ne-NSF/ANSI 61 uma noma yiliphi ithangi liphethe amanzi okuphuza noma amanzi asetshenzisiwe.
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