centrifugal twj tso kua misNws yog lub tshuab ua kua dej uas nws txoj haujlwm ua haujlwm raws li lub zog centrifugal.

Cov hauv qab no yogcentrifugal twj tso kua misCov ntaub ntawv ntxaws ntxaws thiab piav qhia ntawm nws ua haujlwm li cas:

1.yooj yim qauv

1.1 Pump lub cev

• Khoom siv: cam khwb cia hlau, stainless hlau, bronze, thiab lwm yam.
• tsim: Feem ntau nyob rau hauv cov duab ntawm lub volute, siv los sau thiab coj cov dej ntws.

1.2 Lub impeller

• Khoom siv: cam khwb cia hlau, stainless hlau, bronze, thiab lwm yam.
• tsim: Impeller yogcentrifugal twj tso kua misCov khoom tseem ceeb feem ntau muab faib ua peb hom: kaw, ib nrab qhib thiab qhib.
• Cov nplooj: Feem ntau 5-12 ntsiav tshuaj, nyob ntawm lub twj tso kua mis tsim thiab daim ntawv thov.

1.3 axis

• Khoom siv: High zog steel los yog stainless hlau.
• Muaj nuj nqi: Txuas lub cev muaj zog thiab impeller kom xa hluav taws xob.

1.4 Sealing ntaus ntawv

• hom: Mechanical seal lossis packing seal.
• Muaj nuj nqi: Tiv thaiv kom tsis txhob ua kua.

1.5 Cov kabmob

• hom: Rolling bearing lossis zawv zawg bearing.
• Muaj nuj nqi: Txhawb nqa ncej thiab txo kev sib txhuam.

2.Txoj cai ua haujlwm

2.1 Cov kua nkag mus rau hauv lub twj tso kua mis

• Txoj kev dej nkag: Cov kua nkag mus rau hauv lub twj tso kua mis lub cev los ntawm cov yeeb nkab inlet, feem ntau yog los ntawm cov yeeb nkab nqus thiab nqus valve.
• Dej inlet txoj kab uas hla: Txiav txim siab raws li lub twj tso kua mis specifications thiab tsim cov kev cai.

2.2 Impeller accelerates kua

• Impeller ceev: Feem ntau ntawm 1450 RPM lossis 2900 RPM (revolutions ib feeb), nyob ntawm lub twj tso kua mis tsim thiab daim ntawv thov.
• centrifugal zog: Lub impeller tig ntawm kev kub ceev uas tau tsav los ntawm lub cev muaj zog, thiab cov kua yog nrawm los ntawm lub zog centrifugal.

2.3 Cov kua dej ntws mus rau sab nraud ntawm lub twj tso kua mis lub cev

• Khiav tsim: Cov kua ceev nrawm ntws tawm mus rau sab nraud raws li cov channel ntws ntawm lub impeller thiab nkag mus rau hauv lub cev ntawm lub twj tso kua mis.
• Volute tsim: Tus tsim ntawm lub volute pab hloov lub kinetic zog ntawm cov kua rau hauv siab zog.

2.4 Cov kua dej tawm ntawm lub twj tso kua mis

• Txoj kev tso dej tawm: Cov kua yog ntxiv decelerated nyob rau hauv lub volute thiab hloov mus rau hauv siab zog, thiab yog tawm los ntawm lub twj tso kua mis lub cev los ntawm lub qhov hluav taws xob yeeb nkab.
• Qhov hluav taws xob txoj kab uas hla: Txiav txim siab raws li lub twj tso kua mis specifications thiab tsim cov kev cai.

3.zog conversion txheej txheem

3.1 Kinetic zog conversion

• Lub impeller acceleration: Cov kua tau txais lub zog kinetic nyob rau hauv qhov kev txiav txim ntawm lub impeller, thiab nws qhov nrawm nce.
• Kinetic zog formula:( E_k = \frac{1}{2} mv^2 )
  • (E_k): kinetic zog
  • (m): Cov kua nplaum
  • (v): kua tshaj tawm

3.2 Siab zog hloov dua siab tshiab

• Volute deceleration: Cov kua decelerates nyob rau hauv lub volute, thiab lub kinetic zog hloov mus rau hauv siab zog.
• Bernoulli sib npaug(P + \frac{1}{2} \rho v^2 + \rho gh = \text{constant} )
  • (P): Siab
  • (\rho): kua density
  • (v): kua tshaj tawm
  • (g): gravitational acceleration
  • (h): qhov siab

4.Kev ua haujlwm tsis zoo

4.1 Flow (Q)

• txhais:centrifugal twj tso kua misTus nqi ntawm cov kua xa tawm ib lub sijhawm.
• chav tsev: Cubic meters ib teev (m3/h) los yog litres ib ob (L/s).
• thaj tsam: Feem ntau 10-5000 m3 / h, nyob ntawm lub twj tso kua mis qauv thiab daim ntawv thov.

4.2 Lift (H)

• txhais:centrifugal twj tso kua misMuaj peev xwm nce qhov siab ntawm cov kua.
• chav tsev: Meter (m).
• thaj tsam: Feem ntau 10-150 meters, nyob ntawm lub twj tso kua mis qauv thiab daim ntawv thov.

4.3 Lub zog (P)

• txhais:centrifugal twj tso kua misLub cev muaj zog.
• chav tsevhwj chim: kilowatt (kW).
• Kev suav lej:( P = \frac{Q \times H}{102 \times \eta})
  • (Q): tus nqi ntws (m3 / h)
  • (H): Lift (m)
  • (\eta): efficiency ntawm lub twj tso kua mis (feem ntau 0.6-0.8)

4.4 Efficiency (η)

• txhais: Lub zog conversion efficiency ntawm lub twj tso kua mis.
• chav tsev: feem pua ??(%).
• thaj tsam: Feem ntau 60% -85%, nyob ntawm lub twj tso kua mis tsim thiab daim ntawv thov.

5.Cov sijhawm thov

5.1 Cov dej num hauv nroog

• siv: Lub chaw twj tso kua mis loj siv nyob rau hauv cov dej hauv nroog.
• ntws: Feem ntau 500-3000 m3 / h.
• Nqa: Feem ntau 30-100 meters.

5.2 Kev lag luam dej

• siv: Siv nyob rau hauv cov dej txias cov tshuab hauv kev tsim khoom.
• ntws: Feem ntau 200-2000 m3 / h.
• Nqa: Feem ntau 20-80 meters.

5.3 Agricultural irrigation

• siv: Irrigation systems rau thaj tsam loj ntawm thaj av.
• ntws: Feem ntau 100-1500 m3 / h.
• Nqa: Feem ntau 10-50 meters.

5.4 Kev siv dej hauv tsev

• siv: Siv nyob rau hauv cov khoom siv dej ntawm cov tsev siab.
• ntws: Feem ntau 50-1000 m3 / h.
• Nqa: Feem ntau 20-70 meters.

Tau txais kev nkag siab zoo dua nrog cov ntaub ntawv ntxaws ntxaws thiab cov lus piav qhiacentrifugal twj tso kua misNws txoj hauv kev ua haujlwm thiab nws cov kev ua tau zoo thiab kev xaiv hauv cov ntawv thov sib txawv.