CHƯƠNG 4
CHƯƠNG 4
VN HNH V BO DƯNG H
VN HNH V BO DƯNG H
THNG ĐƯNG NG
THNG ĐƯNG NG
4.1 GII THIU CHUNG V H THNG ĐƯNG NG
4.1 GII THIU CHUNG V H THNG ĐƯNG NG
!"#$
!"#$
%& ' ! ( ) * + ,- # .(
%& ' ! ( ) * + ,- # .(
* /012$ 304 5
* /012$ 304 5
60#78 9:).;<
60#78 9:).;<
+ ,- # .(
+ ,- # .(
=0,#>+2$ # =5
=0,#>+2$ # =5
?+ ,- @ !" A . !
?+ ,- @ !" A . !
!BCD ,#9%,6 .E
!BCD ,#9%,6 .E
9/ .F2 )5)+,0) 6
9/ .F2 )5)+,0) 6
!"!" G4+,-%H
!"!" G4+,-%H
)) -9I))5
)) -9I))5
4.2 PHÂN LOI ĐƯNG NG
4.2 PHÂN LOI ĐƯNG NG
J5KL)+.(.A !"0.)FA !M
J5KL)+.(.A !"0.)FA !M
N @ &A @ A @ 2 A
N @ &A @ A @ 2 A
@ :O)M
@ :O)M
*/. ống bằng thép:
*/. ống bằng thép:
?( .6 4 C D + .( & @ F)
?( .6 4 C D + .( & @ F)
!" A 0) + ,- %H . /
!" A 0) + ,- %H . /
* 01304 9(30)
* 01304 9(30)
!" A +,-%H P/)D
!" A +,-%H P/)D
9#.(+,-'(.Q='
9#.(+,-'(.Q='
( R .;555 !" !" .6 4 & F)
( R .;555 !" !" .6 4 & F)
!" A 6)#M
!" A 6)#M
S
K)4<&M
K)4<&M
TU0H)5
TU0H)5
TU0H.!PA)5
TU0H.!PA)5
T U 0H V C W :
T U 0H V C W :
.!B &!MX.).LKY02ZL5
.!B &!MX.).LKY02ZL5
4.2 PHÂN LOI ĐƯNG NG
4.2 PHÂN LOI ĐƯNG NG
S
Y:.!B 4<&M
Y:.!B 4<&M
[#3 .6 \, EF/\
[#3 .6 \, EF/\
'+]?(4.)F&-M
'+]?(4.)F&-M
TX'4<*L)(/^ \,
TX'4<*L)(/^ \,
60\)_5
60\)_5
TX'H1<&5
TX'H1<&5
TX')%,)<&5
TX')%,)<&5
4.2 PHÂN LOI ĐƯNG NG
4.2 PHÂN LOI ĐƯNG NG
K&*'4.E7(/)E
K&*'4.E7(/)E
& `).L ^abc_ Y0`)M ^ab d
& `).L ^abc_ Y0`)M ^ab d
Jc_`)^abdbc_Y05K&*'
Jc_`)^abdbc_Y05K&*'
4):!" !BCD JeY0deZ5
4):!" !BCD JeY0deZ5
K& !" !B C D ( / : .
K& !" !B C D ( / : .
&EfcZG** 0OAE
&EfcZG** 0OAE
& * : .!B ! ! 5 gA E
& * : .!B ! ! 5 gA E
&,#''4')%,
&,#''4')%,
)H1 !"!" CD &
)H1 !"!" CD &
B<Y0,ZY05
B<Y0,ZY05
4.2 PHÂN LOI ĐƯNG NG
4.2 PHÂN LOI ĐƯNG NG
*/. Các ống bằng gang:
*/. Các ống bằng gang:
h !BCD )!" A .Q=!E:
h !BCD )!" A .Q=!E:
G *9'H1)0) )A 5Ki
G *9'H1)0) )A 5Ki
:.(< 7 EF& EF
:.(< 7 EF& EF
D < E1 ,6),7:
D < E1 ,6),7:
:5?G+,A @ !" CD )((
:5?G+,A @ !" CD )((
A !E!E..F,!E)5
A !E!E..F,!E)5
4.2 PHÂN LOI ĐƯNG NG
4.2 PHÂN LOI ĐƯNG NG
*/. Các ống bằng chất dẻo.
*/. Các ống bằng chất dẻo.
N @ :O)9!BCD 0) +,-
N @ :O)9!BCD 0) +,-
)/'/R(.6
)/'/R(.6
<A @ 65YA @ 6j!B
<A @ 65YA @ 6j!B
CD -!E)F.]
CD -!E)F.]
*/. Các ống bằng nhôm:
*/. Các ống bằng nhôm:
YB2dH ^kbdbc`_*
YB2dH ^kbdbc`_*
: .!B 4 A 7 ( / : !B C D
: .!B 4 A 7 ( / : !B C D
0) ,). 9##5
0) ,). 9##5
4.2 PHÂN LOI ĐƯNG NG
4.2 PHÂN LOI ĐƯNG NG
k5 U .)F L) , A M Z !" .)F
k5 U .)F L) , A M Z !" .)F
(A A A 2A *
(A A A 2A *
2 ]
2 ]
lm n( A A M [ ( A A j
lm n( A A M [ ( A A j
/ !" A 9 A , * -
/ !" A 9 A , * -
)=2 ^
)=2 ^
!" F G%! _5n(A A
!" F G%! _5n(A A
!" !B - + ,- / .)F
!" !B - + ,- / .)F
#.(:RL)/':R5
#.(:RL)/':R5
Z!B-< ( A ,.*H
Z!B-< ( A ,.*H
) !o C 8 G ) / (
) !o C 8 G ) / (
A , + ,- / .)F #
A , + ,- / .)F #
.(5p-.9!95
.(5p-.9!95
4.2 PHÂN LOI ĐƯNG NG
4.2 PHÂN LOI ĐƯNG NG
lmn(A A ) ) M
lmn(A A ) ) M
[ ( A A ' A .Q = )
[ ( A A ' A .Q = )
) 5K!" .k,A !$ 6
) 5K!" .k,A !$ 6
( ( + %: # .( , '
( ( + %: # .( , '
, A + ,- $ .q ' .)F
, A + ,- $ .q ' .)F
#.(5p-<(A A
#.(5p-<(A A
) ) .+(0) (C8)
) ) .+(0) (C8)
!o !B-.9!.E5
!o !B-.9!.E5
4.2 PHÂN LOI ĐƯNG NG
4.2 PHÂN LOI ĐƯNG NG
r5U.)FL).Q=,A MKL)*
r5U.)FL).Q=,A MKL)*
0,A .Q=0#=:,
0,A .Q=0#=:,
A .Q=0) .1 :,0\A 5
A .Q=0) .1 :,0\A 5
lm5A .Q=0#=:Mn(A A -
lm5A .Q=0#=:Mn(A A -
,!" .Q=F,W )
,!" .Q=F,W )
%: + 555 p - . s .Q
%: + 555 p - . s .Q
=R)(010j+.B
=R)(010j+.B
) ( ) !o C 85 Z!B - .
) ( ) !o C 85 Z!B - .
(9/)2 )5
(9/)2 )5
lm5N 0) .1 :,0\A MK!" C
lm5N 0) .1 :,0\A MK!" C
D A E ( A A + ,- %
D A E ( A A + ,- %
3 !555 p - . ) !B
3 !555 p - . ) !B
-.*.Q=R)&010j5
-.*.Q=R)&010j5
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
1.
1.
Lựa chọn tuyến ống:
Lựa chọn tuyến ống:
Y,A!7 (.64,A *
Y,A!7 (.64,A *
-%L%&L).t6W 3M
-%L%&L).t6W 3M
u#<(A CD !" A 5
u#<(A CD !" A 5
!7 # )795
!7 # )795
`/-G.64,A
`/-G.64,A
%L%&,A M
%L%&,A M
K.+. ,A *-5
K.+. ,A *-5
K.+! %,.Q)v. 5
K.+! %,.Q)v. 5
K.+:'!7 <20!" %\/
K.+:'!7 <20!" %\/
90R9/,<5
90R9/,<5
g '=>+<. 5
g '=>+<. 5
K.+. A:0) . \
K.+. A:0) . \
%L%&5
%L%&5
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
Y9!) 9%:A <2
Y9!) 9%:A <2
+,-A )0\^0#:.'_=A .
+,-A )0\^0#:.'_=A .
0\ ^ ) 9 , H !" 9
0\ ^ ) 9 , H !" 9
H 5w:!" A :)=!" A
H 5w:!" A :)=!" A
*-(A 5w*!)
*-(A 5w*!)
/ %!7 !" )2
/ %!7 !" )2
o^ )_RD0B5Y*-:,
o^ )_RD0B5Y*-:,
0@ 9 0F )= * 2 :
0@ 9 0F )= * 2 :
!" 9A ! .E)=
!" 9A ! .E)=
!B .F 9 .)F , V H !" 9 A
!B .F 9 .)F , V H !" 9 A
5 Y 9 + ) - 0 , A
5 Y 9 + ) - 0 , A
^,W9'PL)9!EA _)0G
^,W9'PL)9!EA _)0G
92 +#.(5
92 +#.(5
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
k5[649!EA M
k5[649!EA M
Y,2!B%L%&0) .649
Y,2!B%L%&0) .649
!E,A .M
!E,A .M
ZH :5
ZH :5
ZH : #5
ZH : #5
?+A5
?+A5
KW4.(<A 5
KW4.(<A 5
X6A!),A!" 9:
X6A!),A!" 9:
#,A 5Y,#'i.61 ,
#,A 5Y,#'i.61 ,
08<V!BCD 0)
08<V!BCD 0)
( /!" A 95
( /!" A 95
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
r5[64+.(.A M
r5[64+.(.A M
K!" A !BF)@ &,#(6
K!" A !BF)@ &,#(6
.6 4 R F ) < .)F & !B C
.6 4 R F ) < .)F & !B C
D - ) \ ,# > +5 X6 .6 4
D - ) \ ,# > +5 X6 .6 4
&2 !" *%!E 4*j
&2 !" *%!E 4*j
#>+)G.;)5
#>+)G.;)5
w)(=9>+<
w)(=9>+<
A &0)5Y*-CD &2 0jA *
A &0)5Y*-CD &2 0jA *
4 ))=.*#0) 5Y+.(=(!
4 ))=.*#0) 5Y+.(=(!
+,(, 1))E&0)5
+,(, 1))E&0)5
Y + .( .)F ))L \ !B
Y + .( .)F ))L \ !B
:)2 (97F 2 O)
:)2 (97F 2 O)
A * .* ' .E ).,L05 ?( C D A
A * .* ' .E ).,L05 ?( C D A
!B.+.().,L0\0:WAE
!B.+.().,L0\0:WAE
( A 9 : :5 ?+ .( ).,L0 !B
( A 9 : :5 ?+ .( ).,L0 !B
%L.+.( )(+,#90<
%L.+.( )(+,#90<
0)R)F92 .E5
0)R)F92 .E5
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
r5[64',A M
r5[64',A M
Y#-<3A !
Y#-<3A !
0#>+)(.64'
0#>+)(.64'
,A +*:5w.64.)FA
,A +*:5w.64.)FA
CD )=(3
CD )=(3
(!B H / /=(0) 0!" B
(!B H / /=(0) 0!" B
0) ( A 2 * R %C .; ( !B ,5
0) ( A 2 * R %C .; ( !B ,5
Y,W!7 ',A M
Y,W!7 ',A M
x:
x:
Z(/
Z(/
H1
H1
U! .Q=
U! .Q=
gRG,-
gRG,-
g/WR
g/WR
KW4<(A ! A
KW4<(A ! A
Y'(+':y */
Y'(+':y */
(4 :'<+.(L),#',
(4 :'<+.(L),#',
A 5
A 5
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
S
g/,A-<A =!E:0) M
g/,A-<A =!E:0) M
K0) *M
K0) *M
M[',9)
M[',9)
UM[:9)
UM[:9)
XM[/)&7(/9)5
XM[/)&7(/9)5
a
a
M[!" 9 )<A
M[!" 9 )<A
zM[(A )H ,Wa{dJL)3,Q
zM[(A )H ,Wa{dJL)3,Q
%+*-)@ D|
%+*-)@ D|
γ
γ
M[(A,Wa}da{L)(/
M[(A,Wa}da{L)(/
&5
&5
YM[',D)H1,%*1)='
YM[',D)H1,%*1)='
0L5
0L5
0
P.D
t C
2(SE P )
= +
+ γ
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
Y*6'=CD !" A :.')
Y*6'=CD !" A :.')
2 C8s 9A&)E
2 C8s 9A&)E
2 0!" ) 5 ~ 2 0!" ) %
2 0!" ) 5 ~ 2 0!" ) %
!E .6(9)+04 A
!E .6(9)+04 A
E ,# )' , A 5 K,# y
E ,# )' , A 5 K,# y
+0) 0!" B!" A :.#.6
+0) 0!" B!" A :.#.6
4,A #/ FR09
4,A #/ FR09
= (5 ?9 D ) 0!" B , . ' , A F
= (5 ?9 D ) 0!" B , . ' , A F
0 !0#2 0F*H
0 !0#2 0F*H
R!BF4ER):5
R!BF4ER):5
Z A * !" 9 .E G 3 0G A
Z A * !" 9 .E G 3 0G A
%L%& + )F.6/ .#
%L%& + )F.6/ .#
A y ! - ) + 3 0G .: A 5
A y ! - ) + 3 0G .: A 5
g',=(304 EA R
g',=(304 EA R
:<:2 R!7 '/019
:<:2 R!7 '/019
)•<:0q5
)•<:0q5
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
YA &*i.(!" 9m',!B3f{
YA &*i.(!" 9m',!B3f{
!B-)+5(D ',)
!B-)+5(D ',)
&H1*-!B9*6((
&H1*-!B9*6((
:H1$ E!EM
:H1$ E!EM
Y€kH1 4
Y€kH1 4
nkH1
nkH1
€kH1)%)@ )%
€kH1)%)@ )%
`/H1!B-)7A+.;
`/H1!B-)7A+.;
M
M
Z(/
Z(/
:
:
g/I
g/I
n
n
Z /:H1
Z /:H1
KA/1 ,
KA/1 ,
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
!"#$%&'(
!"#$%&'(
)*+,-
)*+,-
./&01&
./&01&
$2$"345*+,26
$2$"345*+,26
27892:!;<5$=34
27892:!;<5$=34
5*+,26!+8" 0>
5*+,26!+8" 0>
!+ 8 %? - 9 0 @ 5; " 0
!+ 8 %? - 9 0 @ 5; " 0
&A4-!"2B%-CDDEF8%?9<0&0
&A4-!"2B%-CDDEF8%?9<0&0
B,079&8GH4&$0-
B,079&8GH4&$0-
5;<53>&A3!+8"
5;<53>&A3!+8"
0:2789&A
0:2789&A
5%5IJ%A<&A43
5%5IJ%A<&A43
%?9; I>$$34
%?9; I>$$34
!"$IK&
!"$IK&
$0*H%L27>91M;NOB327
$0*H%L27>91M;NOB327
894$ !" $9%-56
894$ !" $9%-56
$;
$;
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
}5[64.E<A H1
}5[64.E<A H1
g!" A -RH1$#0) ).!
g!" A -RH1$#0) ).!
:)=!E))=#
:)=!E))=#
) ) / H 1 F < '
) ) / H 1 F < '
( H 1 : )= !E -5 Y (
( H 1 : )= !E -5 Y (
A .E<!" A !" !BCD
A .E<!" A !" !BCD
.M
.M
Y.E<@ 6!" !BH
Y.E<@ 6!" !BH
!" 9@ B<,)=6
!" 9@ B<,)=6
5
5
U).,L,.LL^Uz_
U).,L,.LL^Uz_
Y .E < L)%, .# @ !
Y .E < L)%, .# @ !
* ,^•‚z_
* ,^•‚z_
4.3 THIT K H THNG ĐƯNG NG
4.3 THIT K H THNG ĐƯNG NG
b
b
5X6\7<!" A 5
5X6\7<!" A 5
Y ( .( ( / < .!
Y ( .( ( / < .!
2 0) !" A .)A R\76
2 0) !" A .)A R\76
\7,!" %,L0L):M
\7,!" %,L0L):M
X6\7!E( <.60@
X6\7!E( <.60@
/.((/5
/.((/5
Y.6<!" A .#,^,
Y.6<!" A .#,^,
,0ƒG_
,0ƒG_
„,R)&AE .6F)@ 6
„,R)&AE .6F)@ 6
\7 0R) 0R)&AE
\7 0R) 0R)&AE
:5Y 0R,!B)@ 2
:5Y 0R,!B)@ 2
X…^JkbXTakbX_5†
X…^JkbXTakbX_5†
K0) *M
K0) *M
XM./)&
XM./)&
XM[/)&.F5
XM[/)&.F5
XM[/)&* 5
XM[/)&* 5
†
†
M[(A0q L)APH5
M[(A0q L)APH5