Imibuzo Evame Ukubuzwa

FAQ

IMIBUZO EJWAYELEKILE UKUBUZWA

Yimaphi amapharamitha ayinhloko we-ventilator?

Amapharamitha ayinhloko, isici kufeni, anezinombolo ezine: Amandla (V) Ukucindezela (p) Ukusebenza kahle (n) Isivinini sokuzungezisa (n min.-1)

Liyini Ikhono?

Umthamo inani loketshezi olunyakaziswa yisiphepho, ngevolumu, phakathi neyunithi yesikhathi, futhi ngokuvamile luvezwa ngo-m.3/h, m3/min., m3/isekhondi.

Iyini Ingqikithi Yengcindezi futhi ngingayibala kanjani?

Ingqikithi yokucindezela (pt) iyisamba sengcindezi emile (pst), okungukuthi amandla adingekayo ukuze amelane nokungqubuzana okuphambene nesistimu, kanye nokucindezela okuguquguqukayo (pd) noma amandla e-kinetic anikezwa uketshezi olunyakazayo (pt = pst + pd ).Ingcindezi eguquguqukayo incike kukho kokubili isivinini soketshezi (v) kanye namandla adonsela phansi athile (y).

ifomula-dinamic-pressure

Kuphi:
pd= ingcindezi enamandla (Pa)
y=isisindo esithile soketshezi(Kg/m3)
v= isivinini soketshezi ekuvuleni kwefeni okusetshenzwe isistimu (m/sec)

ifomula-umthamo-ingcindezi

Kuphi:
V= umthamo(m3/sec)
A= igeji yokuvula esetshenziswe uhlelo (m2)
v= isivinini soketshezi ekuvuleni kwefeni okusetshenzwe isistimu(m/sec)

Kuyini okukhiphayo futhi ngingakubala kanjani?

Ukusebenza kahle isilinganiso phakathi kwamandla atholwa ifeni kanye nokokufaka kwamandla enjini yokushayela ifeni

okukhiphayo ifomula ukusebenza kahle

Kuphi:
n= ukusebenza kahle (%)
V= umthamo (m3/sec)
pt= amandla amuncwa (KW)
P= isamba sokucindezela (daPa)

Siyini isivinini sokujikeleza?Kwenzekani ngokushintsha inani lama-revolution?

Isivinini sokuzungezisa inombolo yokuguquguquka okufanele i-impeller yabalandeli ikwazi ukuhlangabezana nezidingo zokusebenza.
Njengoba inani lama-revolution lihluka (n), kuyilapho amandla adonsela phansi oketshezi ehlala azinzile (?), ukuhluka okulandelayo kwenzeka:
Umthamo (V) ulingana ngokuqondile nesivinini sokuzungezisa, ngakho-ke:

t (1)

Kuphi:
n= isivinini sokuzungeza
V= umthamo
V1= umthamo omusha otholwe ngokuhlukahluka kwejubane lokuzungezisa
n1= isivinini esisha sokuzungezisa

t (2)

Kuphi:
n= isivinini sokuzungeza
pt= ingcindezi ephelele
pt1= isamba sokucindezela esisha esitholwe ekuhlukeni kwejubane lokuzungezisa
n1= isivinini esisha sokuzungezisa

Amandla amuncwa (P) ayahlukahluka nge-cube yokujikeleza isilinganiso, ngakho-ke:

formula-speed-rotation-abs.power_

Kuphi:
n= isivinini sokuzungeza
P = abs.amandla
P1= okokufaka kukagesi okusha okutholwe ngokuhlukahluka kwejubane lokuzungezisa
n1= isivinini esisha sokuzungezisa

Amandla adonsela phansi athile angabalwa kanjani?

Amandla adonsela phansi athile (y) angase abalwe ngefomula elandelayo

ifomula yamandla adonsela phansi

Kuphi:
273= uziro ngokuphelele(°C)
t= izinga lokushisa loketshezi(°C)
y= amandla adonsela phansi athize komoya ku-t C(Kg/m3)
Pb= ingcindezi ye-barometric (mm Hg)
13.59= amandla adonsela phansi e-mercury ku-0 C(kg/dm3)

Ukuze kube lula ukubala, isisindo somoya emazingeni okushisa ahlukahlukene nokuphakama kwe-asl sifakiwe kuthebula elingezansi:

Izinga lokushisa

-40°C

-20°C

0°C

10°C

15°C

20°C

30°C

40°C

50°C

60°C

70°C

Ubude
ngenhla
izinga lolwandle
ngamamitha
0

1,514

1,395

1,293

1,247

1,226

1,204

1,165

1,127

1,092

1,060

1,029

500

1,435

1,321

1,225

1,181

1,161

1,141

1,103

1,068

1,035

1,004

0,975

1000

1,355

1,248

1,156

1,116

1,096

1,078

1,042

1,009

0,977

0,948

0,920

1500

1,275

1,175

1,088

1,050

1,032

1,014

0,981

0,949

0,920

0,892

0,866

2000

1,196

1,101

1,020

0,984

0,967

0,951

0,919

0,890

0,862

0,837

0,812

2500

1,116

1,028

0,952

0,919

0,903

0,887

0,858

0,831

0,805

0,781

0,758

Izinga lokushisa

80°C

90°C

100°C

120°C

150°C

200°C

250°C

300°C

350°C

400°C

70C

Ubude
ngenhla
izinga lolwandle
ngamamitha
0

1,000

0,972

0,946

0,898

0,834

0,746

0,675

0,616

0,566

0,524

1,029

500

0,947

0,921

0,896

0,851

0,790

0,707

0,639

0,583

0,537

0,497

0,975

1000

0,894

0,870

0,846

0,803

0,746

0,667

0,604

0,551

0,507

0,469

0,920

1500

0,842

0,819

0,797

0,756

0,702

0,628

0,568

0,519

0,477

0,442

0,866

2000

0,789

0,767

0,747

0,709

0,659

0,589

0,533

0,486

0,447

0,414

0,812

2500

0,737

0,716

0,697

0,662

0,615

0,550

0,497

0,454

0,417

0,386

0,758

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