Kolorifen hisobi
Kolorifen tanlash uchun isitish yuzasini aniqlaymiz.
F= bunda Q=Lmax*(Cx(ti-t0)
Bu yerda: Cx-0.241 kj/kgk
W1=145ºC; W0-2ºC
Q=Lmax* Cx(W1- W0)=40.06*0.241(145-2)=1380.2
k=40NW/mk deb qabul qilamiz.
-2ºC→145ºC; Wkmv=152ºC; Wkh=5 ºC
= =30 ºC > 2 ºC
Wyr 43.2 ºC
F= 7.98m2
Ushbu hisob bo’yicha КФС – 11 kotariferni tanlaymiz.
КФС – 2 tip; F=9.9 m2; m=57.03 kp; ℓ= 360mm; h= 560mm; jonlomoqim
ϯ1= 0.112m3; ϯ2= 0.0046m2
Mexanik hisob.
Barabanning og’ish burchagi.
ά= +(0.007+Wx)
bu yerda : -uzunligi-14 m; n-aylanishlar-5ayl/min; d-diametri-2.8m2; Wx-tutun tezligi-6.8 m/s
ά= +0.007+ =11.8 ºC
N=0.078*ρ2*G*n
N=0.078*2.82*14*1115*0.071*5=3.49kV
Batareyali siklon qurilma hisobi.
Berilgan boshlang’ich ma’lumotlar:
Vk=9500m3 =2.64
dэ=190mm
ρ2=1k/m
Batareyali siklon hisoblanayotanda ko’pincha narmal nagruzkada ishlash uchun ⍙p =70 mm suv ustuni deb qabul qilsak, element diametrini esa dэ =190 mm deb qabul qilamiz.
Batareyali siklon elementlar sonini hisoblaymiz.
N=28.75*102 =28.75*102* =11.7 Vm
Elementning sonini 12 deb qabul qilamiz. Gidravlik qarshilikni apparat uchun element diametrini 190mm bo’lib uning temperaturasi W=30 ºC dan katta bo’lsa, ρ=65 deb qabul qilamiz.
Silindrik qinidagi gazni tezligini hisoblaymiz.
Silindrik 1 element uchun sarfini hisoblaymiz.
Vg=0.785*D2*3600*Wk = 0.785*0.1922*3600*1.46=868.9 kl/s
Bizga kerakli elementlarni hisoblaymiz.
n= = =10.93
n=12 dona qabul qilganimiz to’g’ri ekan.
n1=3 dona; n2=6 dona deb qabul qilsak unda apparatni elpni hisoblashimiz mumkin.
B=dэл*n1+0.04(n1+1)=0.190*3+0.04(3+1)=0.73mm
n= dэл*21+0.04(n2+1)=0.190*6+0.04(6+1)=2.42m
elementning ko’ndlangnkesim yuzasimi hisoblaymiz.
ϯэл= = =0,283mm2
Wmax= = =4,27m/s
Mexanik hisob
Shtuser tanlaymiz (changli gaz uchun). Standart shtuserlar OST26-1404-76
bo’yicha Dk=300mm, dv=325mm, Sv=8mm, Hv=190mm.
Shu shtuserlar uchun flanetslibrikma tanlaymiz ГОСТ1255*67
Dk=300mm D1=365mm
Dф=435mm D2=357mm
Dб=395mm d=23mm
h=18mm z=12mm
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