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Mfundo yogwiritsira ntchito pampu ya centrifugal
2024-09-14
pompa centrifugalNdi makina amadzimadzi wamba omwe mfundo zake zogwirira ntchito zimachokera ku mphamvu ya centrifugal.
Zotsatirazi ndipompa centrifugalTsatanetsatane watsatanetsatane ndi kufotokozera momwe zimagwirira ntchito:
1.dongosolo lofunikira
1.1 Pampu thupi
- Zakuthupi: Chitsulo choponyera, chitsulo chosapanga dzimbiri, mkuwa, etc.
- kupanga: Nthawi zambiri imakhala ngati volute, yomwe imagwiritsidwa ntchito kusonkhanitsa ndikuwongolera kutuluka kwamadzimadzi.
1.2 Impeller
- Zakuthupi: Chitsulo choponyera, chitsulo chosapanga dzimbiri, mkuwa, etc.
- kupanga: Impeller ndipompa centrifugalZigawo zapakati nthawi zambiri zimagawidwa m'magulu atatu: otsekedwa, otseguka komanso otseguka.
- Chiwerengero cha masamba: Kawirikawiri mapiritsi a 5-12, kutengera kapangidwe ka mpope ndi kugwiritsa ntchito.
1.3 gawo
- Zakuthupi: Chitsulo champhamvu kwambiri kapena chitsulo chosapanga dzimbiri.
- Ntchito: Lumikizani mota ndi chowongolera kuti mutumize mphamvu.
1.4 Chida chosindikizira
- mtundu: Makina osindikizira kapena chisindikizo chonyamula.
- Ntchito: Pewani kutuluka kwamadzimadzi.
1.5 Mapiritsi
- mtundu: Kudzigudubuza kapena kutsetsereka.
- Ntchito: Imathandizira shaft ndikuchepetsa kukangana.
2.Mfundo yogwira ntchito
2.1 Zamadzimadzi zimalowa m'thupi la mpope
- Njira yolowera madzi: Zamadzimadzi zimalowa m'thupi la mpope kudzera mu chitoliro cholowera, nthawi zambiri kudzera papaipi yoyamwa ndi valavu yoyamwa.
- Madzi olowera m'mimba mwake: Zimatsimikiziridwa potengera mawonekedwe a pampu ndi zofunikira za mapangidwe.
2.2 Impeller imathandizira madzi
- Impeller liwiro: Nthawi zambiri pa 1450 RPM kapena 2900 RPM (kusintha pamphindi), kutengera kapangidwe ka mpope ndi kugwiritsa ntchito.
- mphamvu ya centrifugal: Chotsitsacho chimazungulira pa liwiro lalikulu loyendetsedwa ndi mota, ndipo madziwo amafulumizitsidwa ndi mphamvu ya centrifugal.
2.3 Madzi amayenderera kunja kwa thupi la mpope
- Mapangidwe othamanga: Madzi othamanga amatuluka kunja motsatira njira yothamanga ya chopondera ndipo amalowa mu gawo la volute la thupi la mpope.
- Kupanga kwamphamvu: Mapangidwe a volute amathandizira kusintha mphamvu ya kinetic yamadzimadzi kukhala mphamvu yokakamiza.
2.4 Zamadzimadzi zotuluka m'thupi la mpope
- Njira yotulutsira madzi: Madziwo amachepetsedwanso mu volute ndikusandulika kukhala mphamvu yamagetsi, ndipo amatulutsidwa m'thupi la mpope kudzera mupaipi yotulutsira madzi.
- Outlet diameter: Zimatsimikiziridwa potengera mawonekedwe a pampu ndi zofunikira za mapangidwe.
3.mphamvu kutembenuka ndondomeko
3.1 Kutembenuka kwamphamvu kwa Kinetic
- Impeller mathamangitsidwe: The madzi amapeza kinetic mphamvu pansi pa zochita za impeller, ndi liwiro lake kumawonjezeka.
- Kinetic Energy formula:( E_k = \frac{1}{2} mv^2)
- (E_k): mphamvu ya kinetic
- (m): Kuchuluka kwamadzi
- (v): kuthamanga kwamadzi
3.2 Kutembenuka kwamphamvu kwamphamvu
- Kuchepetsa mphamvu: The madzi decelerates mu volute, ndi mphamvu kinetic amasandulika kukakamiza mphamvu.
- Bernoulli equation( P + \frac{1}{2} \rho v^2 + \rho gh = \text{constant} )
- (P): Kupanikizika
- ( \ rho ): kuchuluka kwamadzimadzi
- (v): kuthamanga kwamadzi
- (g): kuthamanga kwamphamvu
- (h): kutalika
4.Magwiridwe magawo
4.1 Kuyenda (Q)
- tanthauzo:pompa centrifugalKuchuluka kwa madzi operekedwa pa nthawi ya unit.
- unit: Kiyubiki mita pa ola (m3/h) kapena malita pa sekondi (L/s).
- kukula: Nthawi zambiri 10-5000 m3/h, kutengera pampu chitsanzo ndi ntchito.
4.2 Kwezani (H)
- tanthauzo:pompa centrifugalAmatha kukweza kutalika kwa madzi.
- unitmita (m).
- kukula: Nthawi zambiri 10-150 mita, kutengera pampu chitsanzo ndi ntchito.
4.3 Mphamvu (P)
- tanthauzo:pompa centrifugalMphamvu zamagalimoto.
- unit: kilowatt (kW).
- Fomula yowerengera:( P = \frac{Q \nthawi H}{102 \nthawi \eta} )
- (Q): kuthamanga (m3/h)
- (H): Kwezani (m)
- ( \ eta ): mphamvu ya mpope (nthawi zambiri 0.6-0.8)
4.4 Kuchita bwino (η)
- tanthauzo: Mphamvu kutembenuka mphamvu ya mpope.
- unit:peresenti(%).
- kukula: Nthawi zambiri 60% -85%, kutengera kapangidwe mpope ndi ntchito.
5.Nthawi zofunsira
5.1 Kupereka madzi a Municipal
- ntchito: Malo opopera madzi omwe amagwiritsidwa ntchito pamakina operekera madzi akutawuni.
- kuyenda: Nthawi zambiri 500-3000 m3 / h.
- Kwezani: Kawirikawiri 30-100 mamita.
5.2 Madzi a m’mafakitale
- ntchito: Amagwiritsidwa ntchito poziziritsa kayendedwe ka madzi popanga mafakitale.
- kuyenda: Nthawi zambiri 200-2000 m3 / h.
- Kwezani: Kawirikawiri 20-80 mamita.
5.3 ulimi wothirira
- ntchito: Njira zothirira madera akuluakulu a minda.
- kuyenda: Nthawi zambiri 100-1500 m3 / h.
- Kwezani: Kawirikawiri 10-50 mamita.
5.4 Kumanga malo operekera madzi
- ntchito: Amagwiritsidwa ntchito m'makina operekera madzi a nyumba zapamwamba.
- kuyenda: Nthawi zambiri 50-1000 m3/h.
- Kwezani: Kawirikawiri 20-70 mamita.
Pezani kumvetsetsa bwino ndi deta yatsatanetsatane ndi mafotokozedwepompa centrifugalMfundo yake yogwirira ntchito ndi machitidwe ake ndi kusankha maziko muzogwiritsira ntchito zosiyanasiyana.