Xov Xwm - Dab tsi yog NFPA Rau Cov Hluav Taws Xob Hluav Taws Xob? Yuav ua li cas xam cov hluav taws kub twj tso kua mis siab?

Dab tsi yog NFPA Rau Cov Hluav Taws Xob Hluav Taws Xob

Lub Koom Haum Tiv Thaiv Hluav Taws Hauv Lub Tebchaws (NFPA) muaj ntau tus qauv uas hais txog cov twj tua hluav taws, feem ntau NFPA 20, uas yog "Txoj Cai rau Kev Txhim Kho Cov Pumps Nyob Hauv Kev Tiv Thaiv Hluav Taws." Cov qauv no muab cov lus qhia rau kev tsim, kev teeb tsa, thiab kev saib xyuas cov twj tua hluav taws siv hauv kev tiv thaiv hluav taws.

Cov ntsiab lus tseem ceeb ntawm NFPA 20 suav nrog:

Hom Pumps:

Nws npog ntau homcov twj tua hluav taws, suav nrog cov twj centrifugal, twj tso kua mis zoo, thiab lwm yam.

Installation Requirements:

Nws qhia txog cov kev xav tau rau kev teeb tsa cov twj tua hluav taws, suav nrog qhov chaw, kev nkag mus tau, thiab kev tiv thaiv los ntawm ib puag ncig yam.

Kev kuaj thiab tu:

NFPA 20 qhia txog kev sim cov txheej txheem thiab kev saib xyuas kom ntseeg tau tias cov twj tua hluav taws ua haujlwm zoo thaum xav tau.

Cov qauv kev ua haujlwm:

Cov txheej txheem suav nrog cov txheej txheem kev ua haujlwm uas cov twj tua hluav taws yuav tsum ua kom tau raws li cov dej txaus thiab siab rau kev ua haujlwm tua hluav taws.

Fais fab mov:

Nws hais txog qhov xav tau ntawm cov khoom siv 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 cov khoom ntiag tug los ntawm kev muab cov kev cai rau kev xaiv thiab kev teeb tsa cov twj tso kua mis kom ntseeg tau tias cov tshuab yuav ua haujlwm raws li npaj kom xa cov khoom siv dej txaus thiab txhim khu kev qha thaum muaj hluav taws kub ceev.

Yuav xam li casHluav taws kub twj tso kua misSiab?

Txhawm rau xam qhov hluav taws kub twj tso kua mis, koj tuaj yeem siv cov qauv hauv qab no:

Formula:

Qhov twg:

· P = Pump siab hauv psi (phaus ib square inch)

· Q = Tus nqi ntws hauv nkas loos ib feeb (GPM)

· H = Total dynamic head (TDH) in feet

· F = Kev sib txhuam poob hauv psi

Cov kauj ruam los xam qhov hluav taws kub twj tso kua mis:

Txiav txim siab Flow Rate (Q):

· Txheeb xyuas tus nqi txaus rau koj qhov kev tiv thaiv hluav taws, feem ntau teev hauv GPM.

Muab xam tag nrho Dynamic Head (TDH):

· Lub taub hau zoo li qub: Ntsuas qhov kev ncua deb ntawm cov dej mus rau qhov siab tshaj plaws ntawm qhov tso tawm.

· Friction Poob: xam qhov kev sib txhuam poob hauv cov kav dej siv cov kab kos los yog cov qauv (xws li Hazen-Williams equation).

· Elevation Poob: Account rau ib qho kev hloov siab hauv qhov system.

[TDH = Static Head + Friction Poob + Elevation Poob]

Calculate Friction Loss (F):

· Siv cov qauv tsim nyog lossis cov kab kos los txiav txim qhov kev sib txhuam poob raws li cov yeeb nkab loj, qhov ntev, thiab qhov ntws ntws.

Txuas tus nqi rau hauv Formula:

· Hloov cov txiaj ntsig ntawm Q, H, thiab F rau hauv cov qauv los xam cov twj tso kua mis.

Piv txwv xam:

· Flow Rate (Q): 500 GPM

· Tag Nrho Dynamic Head (H): 100 ko taw

· Kev sib txhuam poob (F): 10 psi

Siv tus qauv:

Cov ntsiab lus tseem ceeb:

· Xyuas kom meej tias qhov ntsuas siab ua tau raws li qhov yuav tsum tau ua ntawm kev tiv thaiv hluav taws.

· Ib txwm xa mus rau NFPA cov qauv thiab cov lej hauv zos rau cov cai tshwj xeeb thiab cov lus qhia.

· Tham nrog tus kws tsim hluav taws xob tiv thaiv hluav taws rau cov kab ke nyuaj lossis yog tias koj tsis paub meej txog kev suav.

Koj Yuav Ua Li Cas Tshawb Xyuas Hluav Taws Kub Siab?

Txhawm rau kuaj xyuas hluav taws kub twj tso kua mis, koj tuaj yeem ua raws li cov kauj ruam no:

1. Sau cov cuab yeej tsim nyog:

Pressure Gauge: Xyuas kom koj muaj lub ntsuas ntsuas ntsuas siab uas tuaj yeem ntsuas qhov xav tau ntau yam.

Wrenches: Rau txuas lub ntsuas rau lub twj tso kua mis lossis kav dej.

Safety Iav: Hnav cov iav kev nyab xeeb tsim nyog, nrog rau cov hnab looj tes thiab tsom iav.

2. Nrhiav qhov Chaw Ntsuas Siab:

Txheeb xyuas qhov chaw ntsuas qhov siab ntawm qhov hluav taws kub twj tso kua mis. Qhov no feem ntau yog nyob rau sab tawm ntawm lub twj tso kua mis.

3. Txuas lub ntsuas ntsuas:

Siv cov fittings uas tsim nyog los txuas lub ntsuas ntsuas siab rau qhov chaw nres nkoj kuaj. Xyuas kom lub foob kaw ntom ntom kom tiv thaiv kom tsis txhob xau.

4. Pib lub twj tua hluav taws:

Qhib lub twj tua hluav taws raws li cov neeg tsim khoom cov lus qhia. Xyuas kom meej tias qhov system yog primed thiab npaj rau kev ua haujlwm.

5. Saib Kev Nyeem Ntawv Siab:

Thaum lub twj tso kua mis khiav, saib xyuas qhov kev nyeem ntawv siab ntawm lub ntsuas. Qhov no yuav ua rau koj tso siab ntawm lub twj tso kua mis.

6. Sau qhov siab:

Nco ntsoov nyeem ntawv siab rau koj cov ntaub ntawv. Muab piv rau qhov yuav tsum tau muaj siab teev nyob rau hauv lub system tsim los yog NFPA cov qauv.

7. Txheeb xyuas Variations:

Yog tias tsim nyog, xyuas lub siab ntawm qhov sib txawv ntawm qhov sib txawv (yog tias lub kaw lus tso cai) kom ntseeg tau tias lub twj tso kua mis ua haujlwm zoo thoob plaws nws qhov ntau.

8. Kaw lub twj tso kua mis:

Tom qab kev sim, xyuam xim kaw lub twj tso kua mis thiab disconnect lub siab ntsuas.

9. Tshawb xyuas cov teeb meem:

Tom qab kev sim, tshuaj xyuas lub kaw lus rau txhua qhov xau lossis qhov txawv txav uas yuav xav tau kev saib xyuas.

Cov ntsiab lus 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 ua haujlwm siab.

Kev Ntsuas Tsis tu ncua: Kev ntsuas siab tsis tu ncua yog qhov tseem ceeb rau kev tswj xyuas qhov kev ntseeg siab ntawm cov twj tua hluav taws.

Dab tsi yog qhov tsawg kawg nkaus Residual Pressure rau Hluav Taws Twj?

Qhov tsawg kawg nkaus qhov siab ntawm cov twj tua hluav taws feem ntau yog nyob ntawm cov kev cai tshwj xeeb ntawm kev tiv thaiv hluav taws thiab cov lej hauv zos. Txawm li cas los xij, ib qho qauv zoo ib yam yog tias qhov tsawg kawg nkaus qhov siab yuav tsum yog tsawg kawg yog 20 psi (phaus ib square inch) ntawm qhov hluav taws xob qhov hluav taws xob feem ntau nyob rau lub sijhawm siab tshaj plaws.

Qhov no ua kom ntseeg tau tias muaj lub siab txaus los xa cov dej mus rau qhov hluav taws kub tua hluav taws, xws li cov twj tso kua mis lossis cov kav dej.

TKFLO Split Casing Ob Chav Suction Fire Pump Specifications

split casing ob chav suction hluav taws twj tso kua mis

Kab rov tav split casing centrifugal twj tso kua mis ua raws li NFPA 20 thiab UL teev cov ntawv thov thiab cov khoom siv tsim nyog rau kev muab dej rau kev tiv thaiv hluav taws hauv cov tsev, cov chaw tsim khoom thiab cov vaj tsev.

Scope ntawm kev muab khoom: Cav tsav hluav taws twj tso kua mis + tswj vaj huam sib luag + Jockey twj tso kua mis / Hluav taws xob lub cev muaj zog tsav twj tso kua mis + tswj vaj huam sib luag + Jockey twj tso kua mis

Lwm qhov kev thov rau chav tsev thov tham nrog TKFLO engineers.

Hom Pump	Kab rov tav centrifugal twj nrog qhov tsim nyog rau kev muab dej rau kev tiv thaiv hluav taws hauv cov tsev, nroj tsuag thiab vaj.
Muaj peev xwm	300-5000GPM (68-567m3 / teev)
Lub taub hau	90 mus rau 650 ko taw (26 mus rau 198 meters)
Siab	Mus txog 650 ko taw (45 kg / cm2, 4485 KPa)
Lub zog hauv tsev	Mus txog 800HP (597 KW)
Cov tsav tsheb	Vertical hluav taws xob motors thiab diesel xyaw nrog lub kaum sab xis iav, thiab chav turbines.
Hom kua	Dej los yog dej hiav txwv
Kub	Ambient nyob rau hauv cov kev txwv rau cov khoom txaus siab ua haujlwm.
Khoom siv ntawm kev tsim kho	Cam khwb cia hlau, Bronze haum raws li tus qauv. Cov ntaub ntawv xaiv tau muaj rau kev siv dej hiav txwv.

TSHOOJ SAIB ntawm Kab rov tav Split Casing Centrifugal Hluav Taws Twj

Post lub sij hawm: Oct-28-2024