Download - Thiet Ke He Thong Say Thung Quay
-
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1. 1.1
-
, .
-
1.2 -
.
- . - - -7 :
- - -4) mm .
- ph nhn (14-20)% - ha .
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1.3 1.3.1
- t
- Tuy nhin :
.
Ly tm
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1.3.2 - (75-90) .- .-
.
- .
- .- ,
- .- 20-45)%
n theo tiu ch TCVN - .
2. 2.1
- .
- nhn , mm quay hi .
- -1/50
.
- 0 0
.-
khng
-
.
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2.2 - nh
.- 0 0
1 1.
- - . .
- -12) .
- ne .
- . Qu tm.
3. 3.1
- G1, G2 (kg/h) .1, 2:
W (kg/h): .- :
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- L :
- :
3.2
3.2.1 3.2.1.1
- calorifer
Nh t0 = 230C 0= 82 %.
:
: ; pa = 0, 981 bar.Enthalpy: . : :
- th (TNS):
: ,
.
- 80)0C.
0 0C nn .
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:
0 = d1 :
%.
1= I2 :
Suy ra, %
Theo 0C
-
.
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.
t
(C)(%)
d
kkk)I
(kJ/kg kkk)
Ph
(bar)(m
3/kg kk)
23 82 0,015 61,00 0,028 0,89
80 5,0 0,015 119.8 0,470 1,06 39 67 0,03144 119,8 0,0694 0,96
- : 0 (kg kkk /h).
:
Suy ra :
:
:
:
:
- :Trn t mt (VLS) . bs =0; Qct =0.
: lorifer: : [ ]
N : : ra: : Qmt
- [ ] Hay
[ ]
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:
[ ] : t
: :
2 1
1; ;V mtV mt
Q Qq q l
W W d d
.Cv1, Cv2: VLS 1=0,4 ,2=0,1 .
Theo :
{
:
a = 4,18 :
v.
,
2 1
I I 1.
3.2.2 -
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- Enthalpy: -
- :
-
- - :
:
:
3.2.3 - 7 mm
nng ,
- :
2 h.4. - :
- m
L= 9 m-
:
- : 5,592
3980
2
21
tttk
(oC)
- : 585,02
67,05,0
2
21
k
- :192,0
5,595,235
42,402612exp
5,235
42,402612exp
tph bar
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- ( ) ( )
- :
.- : . -