NFPA Rau Lub Twj Tso Dej Tua Hluav Taws Yog Dab Tsi?
Lub Koom Haum Tiv Thaiv Hluav Taws Hauv Tebchaws (NFPA) muaj ntau tus qauv uas cuam tshuam txog cov twj tso dej tua hluav taws, feem ntau yog NFPA 20, uas yog "Tus Qauv rau Kev Teeb tsa Cov Twj Tso Dej Nres rau Kev Tiv Thaiv Hluav Taws." Tus qauv no muab cov lus qhia rau kev tsim qauv, kev teeb tsa, thiab kev saib xyuas cov twj tso dej tua hluav taws siv hauv cov kab ke tiv thaiv hluav taws.
Cov ntsiab lus tseem ceeb los ntawm NFPA 20 suav nrog:
Hom twj tso kua mis:
Nws npog ntau homcov twj tua hluav taws, suav nrog cov twj centrifugal, cov twj tso kua mis hloov chaw zoo, thiab lwm yam.
Cov Kev Cai Rau Kev Txhim Kho:
Nws piav qhia txog cov kev cai rau kev teeb tsa cov twj tua hluav taws, suav nrog qhov chaw, kev nkag mus tau yooj yim, thiab kev tiv thaiv los ntawm cov yam ntxwv ib puag ncig.
Kev Xeem thiab Kev Txij Nkawm:
NFPA 20 teev cov txheej txheem kuaj thiab kev coj ua txij nkawm kom ntseeg tau tias cov twj tua hluav taws ua haujlwm tau zoo thaum xav tau.
Cov Qauv Kev Ua Tau Zoo:
Tus qauv suav nrog cov qauv kev ua tau zoo uas cov twj tua hluav taws yuav tsum ua tau kom ntseeg tau tias muaj dej txaus thiab muaj siab rau kev tua hluav taws.
Kev Muab Fais Fab:
Nws hais txog qhov xav tau cov chaw muab hluav taws xob txhim khu kev qha, suav nrog cov txheej txheem thaub qab, kom ntseeg tau tias cov twj tua hluav taws tuaj yeem ua haujlwm thaum muaj xwm txheej ceev.
Los ntawm nfpa.org, nws hais tias NFPA 20 tiv thaiv lub neej thiab khoom vaj khoom tsev los ntawm kev muab cov kev cai rau kev xaiv thiab kev teeb tsa cov twj tso kua mis kom ntseeg tau tias cov txheej txheem yuav ua haujlwm raws li lub hom phiaj los xa cov dej txaus thiab txhim khu kev qha hauv xwm txheej ceev hluav taws.
Yuav Ua Li Cas XamTwj Tso Dej Hluav TawsSiab?
Yuav xam lub zog ntawm lub twj tso hluav taws, koj siv tau cov qauv no:
Cov mis:
Qhov twg:
P = Lub zog twj tso kua mis hauv psi (phaus ib square inch)
Q = Tus nqi ntws hauv gallons ib feeb (GPM)
H = Tag nrho lub taub hau dynamic (TDH) hauv ko taw
· F = Kev poob sib txhuam hauv psi
Cov Kauj Ruam Los Xam Qhov Siab Ntawm Lub Twj Tso Kua Hluav Taws:
Txheeb Xyuas Tus Nqi Nqus (Q):
Txheeb xyuas tus nqi ntws uas xav tau rau koj lub kaw lus tiv thaiv hluav taws, feem ntau teev nyob rau hauv GPM.
Xam Tag Nrho Dynamic Head (TDH):
· Lub Taub Hau Static: Ntsuas qhov nrug ntsug ntawm qhov chaw dej mus rau qhov chaw siab tshaj plaws ntawm kev tso tawm.
· Kev Poob Kev Sib Txhuam: Xam qhov kev poob kev sib txhuam hauv cov kav dej siv cov duab kos lossis cov qauv kev poob kev sib txhuam (zoo li Hazen-Williams equation).
· Kev Poob Siab: Xam txog txhua qhov kev hloov siab hauv lub system.
[TDH= Lub Taub Hau Zoo Li Qub + Kev Poob Sib Txhuam + Kev Poob Siab]
Xam qhov kev poob ntawm kev sib txhuam (F):
Siv cov qauv lossis cov duab kos kom tsim nyog los txiav txim siab qhov kev poob ntawm kev sib txhuam raws li qhov loj ntawm cov yeeb nkab, qhov ntev, thiab qhov nrawm ntawm kev ntws.
Txuas Cov Nqi rau hauv tus qauv:
Hloov cov nqi ntawm Q, H, thiab F rau hauv cov mis los xam lub zog ntawm lub twj tso kua mis.
Piv txwv kev suav:
· Tus Nqi Nqus (Q): 500 GPM
· Tag Nrho Dynamic Head (H): 100 ko taw
Kev poob ntawm kev sib txhuam (F): 10 psi
Siv cov mis:
Cov Lus Qhia Tseem Ceeb:
· Xyuas kom tseeb tias qhov siab uas tau xam tau ua tau raws li qhov yuav tsum tau ua ntawm lub kaw lus tiv thaiv hluav taws.
· Ib txwm saib cov qauv NFPA thiab cov cai hauv zos rau cov kev cai thiab cov lus qhia tshwj xeeb.
· Sab laj nrog tus kws ua haujlwm tiv thaiv hluav taws rau cov txheej txheem nyuaj lossis yog tias koj tsis paub meej txog kev xam lej.
Koj Yuav Tshawb Xyuas Qhov Siab Ntawm Lub Twj Tua Hluav Taws Li Cas?
Yuav xyuas seb lub twj tso hluav taws kub siab npaum li cas, koj ua tau raws li cov kauj ruam no:
1. Sau Cov Khoom Siv Tsim Nyog:
Lub Tshuab Ntsuas Siab: Xyuas kom tseeb tias koj muaj lub tshuab ntsuas siab uas ntsuas tau qhov siab uas xav tau.
Cov Cwj Pwm: Rau kev txuas lub ntsuas rau lub twj tso kua mis lossis cov kav dej.
Cov Khoom Siv Kev Nyab Xeeb: Hnav cov khoom siv kev nyab xeeb kom tsim nyog, suav nrog cov hnab looj tes thiab cov tsom iav.
2. Nrhiav qhov chaw kuaj siab:
Txheeb xyuas qhov chaw sim siab ntawm lub twj tso kua hluav taws. Qhov no feem ntau nyob rau sab tso tawm ntawm lub twj tso kua hluav taws.
3. Txuas lub ntsuas siab:
Siv cov khoom siv sib txuas kom haum los txuas lub ntsuas siab rau qhov chaw sim. Xyuas kom lub foob kaw ruaj khov kom tiv thaiv kev xau.
4. Pib Lub Twj Tua Hluav Taws:
Qhib lub twj tso kua hluav taws raws li cov lus qhia ntawm tus neeg tsim khoom. Xyuas kom tseeb tias lub kaw lus tau npaj ua ntej thiab npaj txhij rau kev ua haujlwm.
5. Saib qhov nyeem ntawv siab:
Thaum lub twj tso kua dej khiav lawm, saib seb lub twj tso kua dej nyeem tau qhov siab npaum li cas. Qhov no yuav qhia koj txog qhov siab uas lub twj tso kua dej tawm.
6. Sau qhov siab:
Sau cia qhov nyeem siab rau koj cov ntaub ntawv. Muab piv rau qhov siab uas xav tau uas tau teev tseg hauv tus qauv tsim lossis cov qauv NFPA.
7. Tshawb xyuas seb puas muaj qhov sib txawv:
Yog tias siv tau, xyuas lub siab ntawm cov dej ntws sib txawv (yog tias lub kaw lus tso cai) kom ntseeg tau tias lub twj tso kua mis ua haujlwm tau zoo thoob plaws nws qhov ntau thiab tsawg.
8. Kaw lub twj tso kua mis:
Tom qab kuaj tas, kaw lub twj tso kua mis kom zoo thiab tshem lub ntsuas siab.
9. Tshawb xyuas seb puas muaj teeb meem:
Tom qab kuaj xyuas tas, xyuas seb puas muaj qhov xau lossis qhov tsis zoo uas yuav tsum tau saib xyuas.
Cov Lus Qhia Tseem Ceeb:
Kev Nyab Xeeb Ua Ntej: Ib txwm ua raws li cov txheej txheem kev nyab xeeb thaum ua haujlwm nrog cov twj tua hluav taws thiab cov tshuab muaj siab.
Kev Kuaj Xyuas Tsis Tu Ncua: Kev kuaj xyuas qhov siab tsis tu ncua yog qhov tseem ceeb rau kev tswj hwm qhov kev ntseeg tau ntawm lub twj tso kua hluav taws.
Qhov Tsawg Kawg Nkaus Siab Rau Lub Twj Tso Kua Hluav Taws Yog Dab Tsi?
Feem ntau, qhov siab tsawg kawg nkaus uas tshuav rau cov twj tua hluav taws nyob ntawm qhov yuav tsum tau ua ntawm lub kaw lus tiv thaiv hluav taws thiab cov cai hauv zos. Txawm li cas los xij, ib qho qauv dav dav yog tias qhov siab tsawg kawg nkaus uas tshuav yuav tsum yog tsawg kawg yog 20 psi (pounds ib square inch) ntawm qhov tawm ntawm cov yeeb nkab thaum muaj dej ntws ntau tshaj plaws.
Qhov no ua kom ntseeg tau tias muaj lub siab txaus los xa dej mus rau lub tshuab tua hluav taws, xws li cov sprinklers lossis cov hoses.
Cov twj tso kua dej centrifugal sib cais kab rov tav ua raws li NFPA 20 thiab UL teev cov kev cai thov thiab nrog cov khoom siv tsim nyog rau kev muab dej rau cov kab ke tiv thaiv hluav taws hauv cov tsev, cov chaw tsim khoom thiab cov vaj.
| Cov khoom siv: Lub cav tsav hluav taws twj tso kua mis + vaj huam sib luag tswj + Jockey twj tso kua mis / Lub cev muaj zog tsav twj tso kua mis + vaj huam sib luag tswj + Jockey twj tso kua mis |
| Yog xav tau lwm yam kev thov rau lub tshuab no, thov nrog TKFLO engineers tham. |
|
Hom twj tso kua mis | Cov twj tso kua dej centrifugal kab rov tav nrog qhov haum tsim nyog rau kev muab dej rau lub kaw lus tiv thaiv hluav taws hauv cov tsev, cov nroj tsuag thiab cov vaj. |
| Peev Xwm | 300 txog 5000GPM (68 txog 567m3/teev) |
| Lub taub hau | 90 txog 650 ko taw (26 txog 198 meters) |
| Siab | Txog li 650 ko taw (45 kg/cm2, 4485 KPa) |
| Lub Tsev Fais Fab | Txog li 800HP (597 KW) |
| Cov tsav tsheb | Cov cav hluav taws xob ntsug thiab cov cav diesel nrog cov iav sab xis, thiab cov turbines pa. |
| Hom kua | Dej los yog dej hiav txwv |
| Kub | Ambient nyob rau hauv cov kev txwv rau kev ua haujlwm ntawm cov khoom siv kom zoo. |
| Cov Khoom Siv Tsim Kho | Hlau cam khwb cia, tooj liab tau teeb tsa ua tus qauv. Cov ntaub ntawv xaiv tau muaj rau kev siv dej hiav txwv. |
SEEM SAIB ntawm Kab Rov Tav Split Casing Centrifugal Hluav Taws Twj Tso Kua
Lub sijhawm tshaj tawm: Lub Kaum Hli-28-2024