seth@tkflow.com 
Chii chinonzi NFPA Yepombi Yemvura Yemoto
Sangano reNational Fire Protection Association (NFPA) rine mitemo yakati wandei ine chekuita nemapombi emvura yemoto, kunyanya NFPA 20, inova "Standard for the Installation of Stationary Pomps for Fire Protection." Iyi chiyero inopa nhungamiro yekugadzira, kuisirwa, uye kugadzirisa kwepombi dzemoto dzinoshandiswa mumasisitimu ekudzivirira moto.
Mapoinzi akakosha kubva kuNFPA makumi maviri anosanganisira:
Mhando dzeMapombi:
Inobata mhando dzakasiyana dzepombi dzekudzima moto, kusanganisira centrifugal pombi, positive displacement pombi, nezvimwewo.
Zvinodiwa pakuiswa:
Inotsanangura zvinodiwa pakugadzwa kwepombi dzemoto, kusanganisira nzvimbo, kuwanikwa, uye kuchengetedzwa kubva kune zvakatipoteredza.
Kuedza uye Maintenance:
NFPA 20 inotsanangura maprotocol ekuyedza uye maitiro ekugadzirisa kuti ive nechokwadi chekuti pombi dzemoto dzinoshanda nemazvo kana zvichidikanwa.
Performance Standards:
Iyo chiyero inosanganisira maitiro ekuita ayo mapombi emoto anofanirwa kusangana kuti ave nechokwadi chekuwaniswa kwemvura yakakwana uye kudzvanywa kwemabasa ekudzima moto.
Magetsi:
Inotarisa kudiwa kwemasimba akavimbika, kusanganisira masisitimu ekuchengetedza, kuve nechokwadi chekuti pombi dzemoto dzinogona kushanda panguva dzenjodzi.
Kubva kunfpa.org, inoti NFPA 20 inochengetedza hupenyu nemidziyo nekupa zvinodiwa pakusarudzwa nekuiswa kwemapombi kuti ive nechokwadi chekuti masisitimu achashanda sezvinodiwa kuendesa mvura yakakwana uye yakavimbika munguva yenjodzi yemoto.
MaverengeroPombi Yemvura YemotoDzvinyiriro?
Kuti uverenge kumanikidza kwepombi yemoto, unogona kushandisa fomura inotevera:
Formula:
Kupi:
· P = Pombi kudzvinyirirwa mu psi (mapaundi per square inch)
Q = Flow rate mumagaloni paminiti (GPM)
· H = Musoro une simba (TDH) mutsoka
· F = Kurasika kwefriction mu psi
Matanho eKuverengera Moto Pump Pressure:
Sarudza Flow Rate (Q):
• Ziva mwero unodiwa wekuyerera kwegadziriro yako yekudzivirira moto, inowanzotaurwa muGPM.
Verenga Total Dynamic Head (TDH):
· Static Head: Edza chinhambwe chakatwasuka kubva pachitubu chemvura kusvika pakakwirira pakubuda.
Kurasika kweFriction: Verenga kurasikirwa kwekukweshera mupombi system uchishandisa friction kurasikirwa machati kana mafomula (seHazen-Williams equation).
· Elevation Loss: Account kune chero shanduko yekumusoro muhurongwa.
[TDH= Static Head + Friction Loss + Elevation Loss]
Verenga Kurasika Kwekuvhiringika (F):
· Shandisa mafomula kana machati akakodzera kuona kurasikirwa kwekukwenya zvichienderana nekukura kwepombi, kureba, uye mwero wekuyerera.
Batanidza Maitiro muFormula:
‣ Chinja kukosha kweQ, H, uye F mune fomula yekuverengera kupomba kwepombi.
Muenzaniso Kuverenga:
· Flow Rate (Q): 500 GPM
· Yese Dynamic Head (H): 100 tsoka
· Friction Loss (F): 10 psi
Kushandisa formula:
Zvinokosha Zvinotarisirwa:
· Ita shuwa kuti iyo yakaverengerwa kudzvanywa inosangana nezvinodiwa zvekudzivirira moto system.
· Gara uchitarisa zviyero zveNFPA nemakodhi emunharaunda pane zvakatemwa uye nhungamiro.
· Bvunza neinjiniya yekudzivirira moto kune yakaoma masisitimu kana kana usina chokwadi nezve chero maverengero.
Iwe Unotarisa Sei Moto Pombi Kudzvanywa?
Kuti utarise kudzvanywa kwepombi yemoto, unogona kutevera matanho aya:
1. Unganidza Midziyo Inodiwa:
Pressure Gauge: Ita shuwa kuti une calibrated pressure gauge inogona kuyera iyo inotarisirwa kudzvanywa renji.
Wrenches: Yekubatanidza geji kune pombi kana pombi.
Chengetedzo Gear: Pfeka giya rekuchengetedza rakakodzera, kusanganisira magirovhosi nemagirazi.
2. Tsvaga iyo Pressure Test Port:
Ziva iyo yekumanikidza test port pane yemoto pombi system. Izvi zvinowanzowanikwa padivi rekubuda kwepombi.
3. Batanidza Pressure Gauge:
Shandisa zvigadziriso zvakakodzera kubatanidza iyo yekumanikidza geji kune yekuyedza port. Ita shuwa chisimbiso chakasimba kudzivirira kudonha.
4. Tanga Pombi yeMoto:
Vhura pombi yemoto maererano nemirairo yemugadziri. Ita shuwa kuti iyo system yakavhurwa uye yakagadzirira kushanda.
5. Cherekedza Kuverenga Kudzvinyirira:
Kana pombi ichimhanya, tarisa kudzvanywa kwekuverenga pane geji. Izvi zvinokupa kuburitsa kumanikidza kwepombi.
6. Rekodha Kudzvinyirira:
Cherechedza kumanikidzwa kuverenga kune zvinyorwa zvako. Enzanisa nedzvinyiriro inodiwa inotsanangurwa muhurongwa hwekugadzira kana NFPA zviyero.
7. Tarisa kune Kusiyana:
Kana zvichibvira, tarisa kudzvinyirirwa pamitengo yakasiyana yekuyerera (kana hurongwa huchibvumira) kuve nechokwadi kuti pombi inoshanda zvinobudirira muhuwandu hwayo.
8. Vhara Pombi:
Mushure mekuyedza, vhara zvakachengeteka pombi uye bvisa iyo yekumanikidza geji.
9. Ongorora Nyaya:
Mushure mekuyedzwa, ongorora sisitimu kune chero kuvuza kana kusakwana kungangoda kutariswa.
Zvinokosha Zvinotarisirwa:
Chengetedzo Kutanga: Gara uchitevera mapuroteni ekuchengetedza paunenge uchishanda nemapombi emoto uye masisitimu akamanikidzwa.
Nguva Dzose Kuedzwa: Nguva dzose kudzvanywa kwekutarisa kwakakosha pakuchengetedza kuvimbika kwepombi yemoto.
Chii chinonzi Minimum Residual Pressure yeMoto Pombi?
Izvo zvishoma zvakasara zvekumanikidzwa kwemapombi emoto zvinowanzoenderana nezvinodiwa zvekudzivirira moto system uye macode emunharaunda. Nekudaro, chiyero chakajairwa ndechekuti iyo shoma yasara yekumanikidza inofanirwa kunge inosvika makumi maviri psi (mapaundi paskweya inch) panzvimbo iri kure yekubuda hose panguva yekuyerera kwakanyanya.
Izvi zvinoita kuti pave nekumanikidzwa kwakaringana kuti zvinyatso endesa mvura kumudziyo wekudzimisa moto, zvakadai semasprinklers kana hoses.
Horizontal split casing centrifugal pombi inopindirana neNFPA 20 uye UL yakanyorwa zvinodiwa zvekushandisa uye ine zvishongedzo zvakakodzera zvekupa mvura kumagetsi ekudzivirira moto muzvivakwa, mafekitori zvidyarwa nemayadhi.
| chiyero chekugovera: Injini inotyaira moto pombi+ control panel+ Jockey pombi / Magetsi mota dhiraivha pombi + control panel+ Jockey pombi |
| Chimwe chikumbiro cheyuniti ndapota kurukurai nemainjiniya eTKFLO. |
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Mhando yePombi | Horizontal centrifugal pombi ine yakakodzera yakakodzera yekupa mvura kugovera kumoto kudzivirira system muzvivakwa, zvidyarwa nemayadhi. |
| Capacity | 300 kusvika 5000GPM (68 kusvika 567m3/awa) |
| Musoro | 90 kusvika 650 tsoka (26 kusvika 198 mamita) |
| Pressure | Kusvika 650 tsoka (45 kg/cm2, 4485 KPa) |
| Simba reimba | Kusvikira ku800HP (597 KW) |
| Vatyairi | Vertical magetsi mota uye injini dzedhiziri dzine magiya ekurudyi, uye turbines. |
| Rudzi rwemvura | Mvura kana mvura yegungwa |
| Tembiricha | Ambient mukati memiganhu yekushanda kunogutsa kwemidziyo. |
| Zvinhu Zvekuvaka | Kandira simbi, Bronze yakaiswa sechiyero. Optional zvinhu zviripo zvekushandisa mvura yegungwa. |
CHIKAMU MAONERO eHorizontal Split Casing Centrifugal Fire Pump
Nguva yekutumira: Oct-28-2024