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Zonel Filtech payaibatsira vatengi kuvandudza vatakuri veguruva, vamwe vavo vakanyunyuta kuti kuchenesa masisitimu avo.bhegi sefa imbahaisi kushanda zvakanaka kunyange kana vachishandisa mhepo inotungamira pombi pamhepo inovhuvhuta pombi, zvakare ne venturi, uye zvakare nekumanikidza kwakaringana kumhepo yakamanikidzwa, saka havagone kuwana mhinduro yekuvandudza mabasa ekuchenesa.

Mushure mekuongorora hurongwa hwavo hwekuchenesa, mainjiniya eZonel akawanikwa chikonzero chikuru ndechekuti chinhambwe chiri pakati pepombi yavo inotungamira yemhepo kuenda kubhegi tube sheet haina kunaka. Kana chinhambwe chakakurisa, mhepo inogona kuridza imwe kubhegi chubhu sheet panzvimbo mumabhegi esefa; zvakapesana, kana yakanyanya kudiki, mweya wakatsikirirwa haugone kutungamira mweya wakakwana kunze mumabhegi esefa, mhedzisiro yekuchenesa chokwadi haizove yakanaka.

Asi sei kutsanangura chinhambwe ichi (H1 mumufananidzo unotevera)?

１.Chekutanga, unoda kutsanangura kukosha kwevhareji yeØp mumufananidzo.
Semazuva ese, isu tinoverenga iyo Øp neinotevera fomula:
Øp=(C*D^2/n) ^1/2
C=Coefficient, semazuva ese sarudza 50%~65%.
D=pulse jet valve outlet dhayamita, senguva dzose zvakafanana kune pombi inofuridza mweya.
n = nhamba yebhegi resefa pamutsara (kucheneswa neiyo yakafanana pulse jet valve)
Semazuva ese, C tinosarudza 0.55.
Kazhinji, mhepo inotungamira pombi dhayamita ndeye 2 ~ 3 nguva dzeØp.

 

２.Tsanangurai urefu hwepombi inotungamira yemhepo.
Mhepo inotungamira pombi semazuva ese shandisa iyo inotevera formula:
L=Ck* Øp/K
Ck=coefficient, semazuva ese sarudza 0.2~0.25
K = is jet turbulence coefficient, cylindrical sarudza 0.076.
kureva L= inenge 0.2* Øp/0.076=2.65 Øp

 

３.Zviri nyore kuwana iyo tg dhigirii =(1/2 Øb)/H2
tg dhigirii = 3.4K = 0.272 (inogona kubatwa senguva dzose)
Saka dhigirii sarudza 15 degree.

 

Semuyenzaniso:
Kana ukasarudza 3” yakanyudzwa pulse jet valve, inotungamira pombi d=30mm, sefa dhayamita yebhegi i160mm, mawaniro eH1.
Mhinduro:
Zviripachena, iyo H1=H2-L
Saka isu tinofanirwa kutsanangura iyo H2 uye L.

tg dhigirii =(1/2 Øb)/H2=3.4K=0.272
kureva H2=1.838 Øb

Øb = 160mm
Saka iyo H2 = 294 mm

3”semazuva ese avhareji Øp=15 mm (inogonawo kuverenga kana bhegi qty richipihwa, kana zvinoenderana nedata reruzivo, rakawedzerwa ndapota tsvaga.)
Kubva pane zvamboitika, L=2.65 Øp, saka L=2.65*15=40 mm
Saka iyo H1=294-40=254mm.

 

Kune Qp, kazhinji avhareji data inogona kusarudzwa seinotevera:
Pulse jet valve size ---- 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

 

Semazuva ese, iyo Qp dhizaini ichakamurwa kuita 3 ~ 4 mapoka, padhuze ne pulse jet valve, saizi yakavhurika yakakura, uye boka rekuisa dhayamita misiyano ingangoita 1mm.