tashkil etadi. Yuqori bosimli bi rlamchi drossellanish sikli sikllar orasida
e n g soddasi b o ‘lsa h a m , ene r gi ya sarfi b o ‘yi cha e n g s a ma r a s iz sikldir.
Bu sikl, havoni dastlab m i n u s 228 К g a c h a ni sbat an a r z o n b o ‘lgan
a m m i a k l i sovi tish h a m d a b i r q i s m h a v o n i 12—20 M P a b o s i m g a c h a ,
qolganini esa mi nima l m u m k i n b o ‘lgan bosi m 0, 6 M P a g a c h a siqishni
kiritib, m u k a m m a l l a s h t i r i l i s h i m u m k i n . N a t i j a d a
yetarli d a r a j a d a ,
yu qo ri s a m a r a l i drossel lash effektiga erishi ladi .
B u n d a y ikki bosimli va 228 К g a c h a oraliq sovitishni q o ‘llaydigan
sikl b o ‘y ic ha G - 6 8 0 0 tipidagi t o z a azot olish u c h u n m o ‘ljallangan
h a v o n i ajratish qu ri l ma l ar i ishlaydilar. Or a li q a m m i a k l i sovit ishni
q o ‘llash h i so bi ga y u q o r i bosi mli h a v o m i q d o r i k a m a y a d i , b u n i n g
hisobiga esa energi yani ng sol isht irma sarfi h a m 10— 12% ga kamayadi .
3.3.2. Bir qism havoni detanderda kengaytiruvchi o‘rta
bosimli sikl (Klod sikli)
0 ‘rta bosi m (4,0—6,0 M P a ) da ishlaydigan b u n d a y siklni sxemasi
(a)
va T - S diagrammasidagi ishlash tasviri
{b)
3. 3-rasmda k o ‘rsatilgan.
H a v o p o r s h e n l i k o m p r e s s o r 1 d a 4 , 0 —6, 0
M P a g a c h a siqiladi
( T - S d i a g r a m m a s i d a
I — 11
c h i z i g ‘i): siqilish o q i b a t i d a h a v o isiydi va
a y l a n m a suv bilan sovitgich ( 2 ) da sovitiladi, s o ‘ngra issiqlik a l m a s h
t irgich ( J ) d a az ot va kisl orod b i lan T 3 Kelvin g r a d u s g a c h a sovitiladi
( I I — I I I
c h i z i g ‘i). A z o t va kislorod issiqlik a l m a s h t i r g i c h
( 3)
d a n
( n u q t a Г) c h i q i b , i s t e’m o l c h i g a y ubor i ladi . Issiqlik a l m a s h g i c h
( 3)
d a n c h i q q a n h a vo ikki o q i m g a b o ‘linadi.
H a v o n i n g D q i s m d a n ibor at b i r i n ch i o q i m i p o r s h e n l i d e t a n d e r
( 4 )
ga y u b o r i l i b , u y e r d a h a v o t a s h q i ish b a j a r i s h b i l a n p as tk i
re kt i f i ka ts i o n m i n o r a ( 7 ) dagi b o s i m — o ‘r t a c h a 0, 6 M P a b o s i m
g a c h a k enga yadi ( I I I —VI c hi z i g ‘i; d e t a n d e r n i n g
foydali ish koeffitsi-
y e n t i n i h i so bg a o l in s a I I I —V c h i z i g ‘i), h a v o n i n g q ol ga n 1 - D qismli
ikkinchi o q i m i esa y o ‘nalishi b o ‘y i c h a i kkinchi issiqlik a l m as ht i rg ic h
( 5 ) ga y u b or i la d i va u y e r d a kislorod va a z o t n i n g q ar s hi o q i m i bilan
sovitiladi ( I I I — IV c h i z i g ‘i). S h u n d a n s o ‘ng s ovitilgan bu h a v o d r o s -
selli ventil
( 6)
or qa li 4 0 —60 M P a d a n 0,6 M P a b o s i m g a c h a d r o s -
sel lani b ( I V —VI c h i z i g ‘i), p o r s h e n l i d e t a n d e r
( 4)
d a n 0, 6 M P a b o
s i m d a k e l a y o t g a n h a v o bilan q o ‘shilib, pastki re kt i f i ka ts io n m i n o r a
( 7 ) ning pastki qi smi ga kiradi va u y er da t o ‘y i n g a n h a v o b u g ‘i va
s u y u q h a v o g a ajraladi. T o ‘y i n g an h a v o b u g ‘i
re kt i fi ka tsi ya qilinib,
m i n o r a ( 7 ) ni ng t e p a q i s m i d a t o z a s u y u q a z o t hosil qi lina di va u
drosselli vent il
( 8)
or qa li 0, 6 M P a d a n 0, 13 M P a g a c h a d ros sel la-
nib, yu q or i r ekti fi ka ts ion m i n o r a
( 10)
ni n g t e p a qi smi ga yu b or i l ad i .
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