Izitanki Zensimbi Ezigalvanisiwe Ze-NFPA 22: Ubunjiniyela, Ukuthobela, kanye Nokuhlala Isikhathi Eside
Kwadalwa ngo 06.17
Amathangi Ensiza Ye-Galvanized Eyakwa-NFPA 22: Ubunjiniyela, Ukuthobela, Nokuhlala isikhathi eside
Lapho uhlola izixazululo zokugcina amanzi ukuze kuvikelwe umlilo oyimfihlo, amathangi ensiza ye-galvanized eboshiwe uvame ukumela ibhalansi efanele phakathi kwezindleko zokuqala zokwakha, ukuqina komklamo, nokusetshenziswa ngokushesha. Ngokulawulwa yi-NFPA 22 (Standard for Water Tanks for Private Fire Protection), lezi tanki kumele zakhiwe ukuze zimelane nemithwalo eqinile yemvelo neye-hydraulic. Ngenkathi inqubo ye-galvanization ihlinzeka ngokumelana nokugqwala okubalulekile, ukuhambisana kweqiniso kuncike ekugcinweni kwe-AWWA D103 standard for bolted steel tank construction.
1. Indima Yensimbi E-Galvanized Ekulweni Nomlilo
I-Hot-Dip Galvanization (HDG) ihilela ukugqoka amaphaneli ensimbi ngesendlalelo se-zinc. Le nqubo idala isithiyo se-cathodic, okusho ukuthi uma ingaphezulu liklwebhekile noma luvulekile, i-zinc ezungezile izinikela ukuze ivimbele insimbi engaphansi ukuthi ingagqwali.
Emkhakheni we-NFPA 22, amathangi ensimbi e-galvanized—avame ukuba ahlanganisiwe futhi aboshwe—asebenza njenge-"workhorse" yokugcina amanzi omlilo. Asetshenziswa kabanzi ezindaweni zezimboni, ezindaweni zokugcina izimpahla ezinkulu, kanye nasezindaweni zasemakhaya lapho ukuxhuma kugridi kamasipala kungenzeki noma kubiza kakhulu.
2. Izindinganiso Zokuhambisana: NFPA 22 & AWWA D103
I-NFPA 22 ayibophi ukuthi kusebenziswe impahla eyodwa, kodwa ichaza ngokuqinile izimiso zokusebenza kwanoma iyiphi impahla ekhethiwe. Ngensimbi ye-galvanized, ukuhambisana kuqhutshwa ikakhulukazi yi-AWWA D103 (Izinga Lamathangi Ensini Eboshwe).
● Izindinganiso zobunjiniyela: Ithangi ngalinye le-galvanized kumele lenziwe ngobunjiniyela ukuze lihambisane nezidingo ezithile zomoya, ukuzamazama komhlaba, kanye nomthwalo weqhwa. Awukwazi ukufaka ithangi nje; kufanele unikeze "amashidi okucindezela" noma izibalo zesakhiwo ezisayinwe unjiniyela ochwepheshe.
● Ukuvikelwa Okumelana Nokugqwala: I-NFPA 22 ifuna ukuthi izindawo zangaphakathi ezivezwe emanzini zivikelwe. Amathangi e-galvanized avame ukukufeza lokhu ngendlela eyodwa kwezimbili:
1. I-Galvanization Ephezulu: Ubukhulu obunzima bokugqoka i-zinc obanele ukuvimbela ukugqwala isikhathi sonke sokusebenza kwethangi.
2. Izendlalelo Zangaphakathi: Ukusebenzisa izendlalelo eziqinisekiswe yi-NSF/ANSI 61 (njenge-Butyl noma i-EPDM rubber) ukuhlukanisa amanzi kumaphaneli ensimbi, kunciphisa ngempumelelo ubungozi bokugqwala kwangaphakathi.
3. Ukuqhathanisa Insiza ye-Galvanized Namanye ubuchwepheshe bamathangi ensimbi
Isici | Insiza ye-Galvanized (Eboshiwe) | Insiza Yengilazi Eqiniswe Ensini (GFS) | Insiza Yensimbi Ye-Carbon Eboshiwe |
Izindleko Zokuqala | Engabizi | Phezulu | Phezulu |
Ukumelana Nokugqwala | Phakathi (I-Zinc Yokuhlatshelwa) | Okungcono Kakhulu (I-Glass Barrier) | Phansi (Kudingeka Ukugcotshwa) |
Isivinini Sokuhlanganisa | Ngokushesha (Okuyimodular/Okuboshiwe) | Ngokushesha (Okuyimodular/Okuboshiwe) | Kancane (Ukushisela Ensimini) |
Ukunakekelwa | Kudingeka ukuhlolwa njalo | Phansi Kakhulu | Phezulu (Ukuphinda Ugcotshwe) |
Ukuthobela | AWWA D103 | AWWA D103 | AWWA D100 |
4. Izinto Ezibalulekile Zokuklama
Ukuqinisekisa ukuthi iphrojekthi yakho yetangi eligalelwe igolide iyadlula esivivinyweni yi-Authority Having Jurisdiction (AHJ), kufanele ifake lezi zici ezithile ezidingwa yi-NFPA 22:
● I-Anti-Vortex Plate: Ibhekiswe endaweni yokuphuma ukuze kuvinjelwe ukwakheka kwe-whirlpool nokungena komoya, okungalimaza ama-fire pump.
● Ama-Roof Vents: Abalulekile ukuvumela umoya ukuthi ungene etangini ngesikhathi kuphuma umthamo omkhulu. Ngaphandle kokungena komoya okufanele, itangi lingabhekana nokuwa komqambothi ngenxa yengcindezi ye-vacuum.
● Ukuvikelwa ekuqandiseni: Ezingxenyeni lapho izinga lokushisa lehla ngaphansi kuka-40°F (4.4°C), ithangi kumele libe nezinhlelo zokushisisa ukuze kuqinisekiswe ukuthi amanzi ahlala engamanzi futhi alungele ukudonswa yipompi.
● Ukuqapha: Izikali zamazinga namanqamuli aphansi axhumana ngqo nephanele lokulawula i-alamu yomlilo esikhungweni ukuze kuqashwe ukude.
5. Ukudlulisela Ekugcineni Okungapheli (NFPA 25)
Indawo evamile yokuhluleka kwabaphathi bezakhiwo ukudida izindinganiso zokuklama (NFPA 22) nezindinganiso zokuhlola (NFPA 25). Uma ithangi lakho elihlanganiswe nge-zinc selifakiwe, lingena kumjikelezo wokugcinwa we-NFPA 25:
1. Ukuhlola Okubonwayo: Njalo hlola ingaphandle ukuze ubone ukugqwala okumhlophe (i-zinc oxide) noma izimpawu zokulimala ngokomzimba.
2. Ukuhlola Kwangaphakathi: Uma ithangi lisebenzisa i-liner yangaphakathi, kufanele lihlolwe ngezimpawu zokubola, ukuqhekeka, noma ukuqoqeka kukadaka.
3. Ukusebenza kwamavalvu: Amavalvu okuvikela umlilo kufanele avivinywe (asebenze) njalo ukuze kuqinisekiswe ukuthi awavalelwa yimikhiqizo yamaminerali noma imfucumfucu.
4. Imibhalo: Gcina irekhodi elisesikhathini lawo wonke amahlolo. Abaqinisekisi bomshwalense bazofakazela le mibhalo ngesikhathi sokuhlolwa kwesakhiwo minyaka yonke.
Ingabe i-Galvanized Ilungile Kuwe?
Amathangi ensimbi ye-galvanized ayisixazululo esihle, esonga imali sokuvikela umlilo, uma nje enziwe ngokwe-AWWA D103 futhi afakwe ukuvikelwa kwangaphakathi okufanele (i-galvanization enzima noma i-liner). Ngokulandela imiyalelo yokuklama ku-NFPA 22 kanye nokuzibophezela ohlelweni lokugcinwa ku-NFPA 25, abanikazi bezindawo bangaqinisekisa isipele samanzi esithembekile, esithobela imithetho esizokwazi ukumelana nesikhathi.
Ngabe uhlola insimbi ye-galvanized nezinye izinketho zesiza esithile, noma ngabe ulungiselela ukudweba isicelo sokunikezwa (RFP) sohlelo lokugcina amanzi omlilo? Ukwazi isigaba sephrojekthi yakho kunganginika amakhathalogu okuvumelana nezimo aqondiswe kakhulu.
WhatsApp