Nhanganyaya kumashoko akajairika epombi (5) - Mutemo wekucheka pombi yemagetsi

Chikamu chechina Kushanda kwepombi ine dhayamita yakasiyana-siyana

Kushanda kwedhayamita inochinja-chinja zvinoreva kucheka chikamu cheimpeller yekutanga yepombi ine vane nelathe iri padhayamita yekunze. Mushure mekunge impeller yachekwa, mashandiro epombi achachinja zvichienderana nemitemo yakati, nokudaro zvichichinja nzvimbo yekushanda yepombi.

Mutemo wekucheka

Mukati mehuwandu hwakati hwekucheka, kushanda zvakanaka kwepombi yemvura isati yachekwa uye mushure mekucheka kunogona kuonekwa sekusina kuchinja.

avcsdv (1)
avcsdv (1)
avcsdv (1)
ponesa (1)

Matambudziko anoda kutariswa pakucheka impeller

Pane muganho wehuwandu hwekucheka kweimpeller, zvikasadaro chimiro cheimpeller chichaparadzwa, uye mugumo wemvura webanga uchakora, uye nzvimbo iri pakati peimpeller nebhokisi repombi ichawedzera, izvo zvichaita kuti kushanda kwepombi kuderere zvakanyanya. Huwandu hwepamusoro hwekucheka kweimpeller hunoenderana nekumhanya kwakanangana.

ponesa (2)

Kucheka imperler yepombi yemvura inzira yekugadzirisa kusawirirana pakati pemiganhu yemhando yepombi uye zvirevo uye kusiyana kwezvinhu zvinopa mvura, izvo zvinowedzera huwandu hwekushandiswa kwepombi yemvura. Huwandu hwekushanda kwepombi kazhinji chikamu che curve uko kushanda kwakanyanya kwepombi kunoderera ne 5% ~ 8%.

Muenzaniso:

Muenzaniso: SLW50-200B

Dhayamita yekunze yeimpeller: 165 mm, musoro: 36m.

Kana tikashandura dhayamita yekunze yeimpeller kuita: 155 mm

H155/H165= (155/165)2 = 0.852 = 0.88

H(155) = 36x 0.88m = 31.68m

Muchidimbu, kana dhayamita ye impeller yemhando iyi yepombi ikachekwa kusvika 155mm, musoro unogona kusvika 31 m.

Zvinyorwa:

Mukuita, kana huwandu hwemapeni huri hudiki, musoro wakachinjwa unenge wakakura kupfuura wakaverengerwa.


Nguva yekutumira: Ndira-12-2024