Iindaba

Xa iZonel Filtech inceda abathengi ukuba baphucule abaqokeleli bothuli, abanye babo bakhalazelwa ukuba iinkqubo zokucoca zabo.indlu yokucoca ingxowaayisebenzi kakuhle nokuba basebenzisa umbhobho ohamba phambili womoya emoyeni ovuthela umbhobho, kunye ne-venturi, kunye noxinzelelo oluchanekileyo lomoya ocinezelweyo, ngoko abanakufumana isisombululo sokuphucula imisebenzi yokucoca.

Emva kokuhlalutya inkqubo yabo yokucoca, iinjineli zeZonel zifunyenwe isizathu esona sizathu kukuba umgama phakathi kombhobho wabo okhokelela emoyeni kwi-tube sheet sheet awuchanekanga. Ukuba umgama mkhulu kakhulu, umoya unokuvuthela kwiphepha letyhubhu yengxowa endaweni yoko kwiingxowa zokucoca; ngokuchaseneyo, ukuba incinci kakhulu, umoya ocinezelweyo awukwazi ukukhokelela umoya owaneleyo ngaphandle kwiingxowa zokucoca, umphumo wokucoca ngokuqinisekileyo awuyi kuba mhle.

Kodwa ungawuchaza njani lo mgama (H1 kumzobo olandelayo) ?

１.Inyathelo lokuqala, kufuneka uchaze ixabiso eliphakathi le-Øp kumzobo.
Njengesiqhelo, sibala i-Øp ngale fomula ilandelayo:
Øp=(C*D^2/n) ^1/2
C=I-Coefficient, njengesiqhelo khetha i-50% ~ 65%.
D=Ivalve yejethi ye-pulse, njengesiqhelo iyafana kumbhobho ovuthela umoya.
n=inani lengxowa yokucoca ngomqolo (ukucoca ngevalve yejethi ye-pulse efanayo)
Njengesiqhelo, C sikhetha 0.55.
Ubukhulu becala, umbhobho okhokelayo womoya ubukhulu yi-2 ~ 3 amaxesha e-Øp.

 

２.Chaza ubude bombhobho okhokelela emoyeni.
Umbhobho okhokelela emoyeni njengesiqhelo sebenzisa le fomula ilandelayo:
L=Ck* Øp/K
Ck=umlingane, njengesiqhelo khetha 0.2~0.25
K=yi-jet turbulence coefficient, cylindrical khetha 0.076.
okt L= malunga 0.2* Øp/0.076=2.65 Øp

 

３.Kulula kakhulu ukufumana loo tg isidanga =(1/2 Øb)/H2
tg isidanga= 3.4K=0.272 (inokuphathwa njengesiqhelo)
Ngoko isidanga khetha i-15 degree.

 

Umzekelo:
Ukuba khetha i-3” entywilisiweyo ivelufa yejethi yepulse, umbhobho ohamba phambili d=30mm, isihluzo sebhegi yedayamitha yi-160mm, ungayifumana njani i-H1.
Impendulo:
Ngokucacileyo, i-H1=H2-L
Ke kufuneka sichaze i-H2 kunye ne-L.

tg isidanga =(1/2 Øb)/H2=3.4K=0.272
okt H2=1.838 Øb

Øb = 160mm
Ngoko ke i-H2=294 mm

3”njengesiqhelo i-avareji Øp=15 mm (iyakwazi ukubala xa ibhegi inikwa, okanye ngokwedatha yamava, eyongeziweyo nceda uyifumane.)
Ukususela kwisiphumo sangaphambili, L=2.65 Øp, ngoko ke L=2.65*15=40 mm
Ke i-H1=294-40=254mm.

 

Kwi-Qp, ngokubanzi idatha ephakathi inokukhethwa ngolu hlobo lulandelayo:
Ubungakanani bevalve yejethi yePulse ---- Qp
3/4”----5~7mm
1” ---- 6~8mm
1 1/2”----7~9mm
2”----8~11mm
2 1/2”----9~14mm
3”----14~18mm
4”----16~22mm

 

Njengesiqhelo, xa uyilo lwe-Qp luya kwahlulwa lube ngamaqela angama-3 ~ 4, kufutshane nevalve yejet ye-pulse, ubungakanani obuvulekileyo bukhulu, kunye neqela leqela leeyantlukwano zobubanzi malunga ne-1mm.