泵阀技术论坛 » 泵理论与设计 » 介绍‘经济流速’

zhou451201000 发表于 2005-9-30 11:13

介绍‘经济流速’

管子的流速是任意设定的吗？不是。从流体力学可知当管内介质流速越大则阻力越大。当流速越小时，虽然流动阻力小了，对于同样的流量所需要的管径却大了，造成设备成本的升高。于是人们考虑到这两条因素取了一个合理的流速称为经济流速，人们根据流量选择管径就是依靠经济流速计算得出的。 zl7n7t3Z9w:v
介质为水时
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^,QO5xyLy ~D 用于一般给水：   主压力管道         流速：    2至3m/S
I5nP,vIL9T*G                            低压管道                      0.1至1m/SK/M"p+W1^;g

&nw\"b[*P 工业用水：      离心泵压力管                      3至4m/S
%F+kj3h%P9yu
S)kA                      离心泵吸水管                      1至2m/S（管径小于250）6d*`Y8B['He
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                                                             1.5至2.5m/S（管径大于250）
*x*{m}1Ec5z]                            给水总管                      1.5至3m/S
!g%fx-x4i3s*l4x9}                               排水管                      0.5至1m/S*M'K3m0?qOQw

3p^%Ld!{y;J 冷却：                     冷水管                      1.5至2.5m/S
v7}N6Wo8us*Q:o                               热水管                      1至1.5m/S

admin 发表于 2005-10-2 23:39

谢谢总版主，学习了，希望多发这类帖子。

gapi 发表于 2005-10-18 14:26

谢谢总版主，希望多发这类帖子

liujy22862 发表于 2005-10-18 18:19

多谢！希望多提供这些数据。

YOYO_I 发表于 2005-10-27 11:09

有没有关于输油管路的流速啊？

zhou451201000 发表于 2005-10-29 19:46

在工程上对各种介质（液体，气体，两相流，液压油路等）都有了各自管道中的经济流速和相应的计算公式。
h\v t4B EA 看到你的贴子后，我查了下我手头资料，由于资料有限未见输油管路流速的计算。你可以找下资料，我也想法找下资料，找到后我想法通知你。

muerxiao 发表于 2005-11-5 10:28

谢谢总版主，希望多发这类帖子

YOYO_I 发表于 2005-11-11 08:44

[quote]Originally posted by [i]zhou451201000[/i] at 2005-10-29 19:46:
;b+Y2xJ,A*d Hd@ 在工程上对各种介质（液体，气体，两相流，液压油路等）都有了各自管道中的经济流速和相应的计算公式。
p)X;d&i9R.O 看到你的贴子后，我查了下我手头资料，由于资料有限未见输油管路流速的计算。你可以找下资料，我也想法找下 ... [/quote]E B)s6uQ:Y$c
谢谢哈！现在的泵大多数向石油、化工发展。油特殊性决定了他的流速。上次有人问我这么快的流速会不会引起摩擦火花导致爆炸呢。
o,|7v}F \ 把我给问住了。

我爱我家 发表于 2005-12-19 02:25

回复 #1 zhou451201000 的帖子

有长见识了，多谢zhou451201000老师。

bufferman 发表于 2005-12-20 17:56

化工管路流速选取

化工管路流速选取，看看有没有用！ [attach]428[/attach]

bufferman 发表于 2005-12-20 18:04

谢谢坛主！
!D$GvX8~"D 这个不知行不行！
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<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
zOx0Tu <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>冷却</FONT></TD>Qc3Xe.Vcp}
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>冷水管</FONT></TD>~4V+q1l-l3f2l
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>1.5-2.5</FONT></TD>
Nh:jQv SB <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
!d2Jpv&g.ur <TR style="HEIGHT: 14.25pt" height=19>/v/q8Uuh?^K8o
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
FwgAK`1^`7i <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>bF-v6x sZa$O
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>热水管</FONT></TD>T'L5Oq5|p9O
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>1-1.5</FONT></TD>'T6MSc:l5kDyq
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
x+R"i{ B"O!p <TR style="HEIGHT: 14.25pt" height=19>
#|:V3nt.jz <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
#kR K9^)?Z@|9} <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>凝结</FONT></TD>
2i~2j-E%O7e <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>凝结水泵吸水管</FONT></TD>eDX\dT2|aEo8R
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.5-1</FONT></TD>
W-|Q+V&p z.A:v*Q f <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
6kOB:R#eg$^ <TR style="HEIGHT: 14.25pt" height=19>
R5J;{J(@
T$E <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
\&{3X%?l o:N <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>)z'cwc6|w;S9OA
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>凝结水泵出水管</FONT></TD>
uz0M8BI'kF <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:num><FONT face=宋体>1-2</FONT></TD>
?O+J j2P/J'E4rV <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>r9R8m}l'xKuq
<TR style="HEIGHT: 14.25pt" height=19>
\)_%V1xf!k9A <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>)~ w @\!Zg:Kp*i
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
O f3_]$N6EIc.mR <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>自流凝结水管</FONT></TD>
~!@P[ oJ <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.1-0.3</FONT></TD>l9V#IKmYEfEy
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>nQe6g*IaK
<TR style="HEIGHT: 14.25pt" height=19>

E ~&X1WD|9y2n <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
)Y V0_*sR4B1o&_ yl <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>一般液体</FONT></TD>
E-mSN"M)~f#T <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>低粘度</FONT></TD>3tb4Nx%bJ
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>1.5-3.0</FONT></TD>@+d(V+FB8L ~KUh
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
JSpg}MyCn <TR style="HEIGHT: 14.25pt" height=19> kf_au.lk2|
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>7~Xk0c/g[
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>高粘度液体</FONT></TD> b{Y[/C+IZnb
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>粘度 50mPa.s</FONT></TD>
F5U`
Z.|M6bl{ <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>'o/T8@,J J@ K]2M:_o
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>1j{o1F8G"H7h P
<TR style="HEIGHT: 14.25pt" height=19>
/W:c-fI z <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
s'SHt0TU;c'_$E <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>Ezh1@ x/t$g9s g+q
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>DN25</FONT></TD>\Q c/d({x
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.5-0.9</FONT></TD>
Kp!DC~"UC <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR> e
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<TR style="HEIGHT: 14.25pt" height=19>
C4@5w7d,}0T <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD> ]/w5{$Bs,Tc
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
5[Qq#L
?r0Bws)U <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN50 "><FONT face=宋体>DN50<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>_\L%Z? F"t
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.7-1.0</FONT></TD>7bSX8eCZv
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
Q9r#B/Dh <TR style="HEIGHT: 14.25pt" height=19>
cOAL8uZ#Q%S0uZT <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
t(`r"r&X B'A <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>"KGW8F4i@+Bb1{h
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN100 "><FONT face=宋体>DN100<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>4M"ygMjh
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>1.0-1.6</FONT></TD>ECeV\#Ec [no'R
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
4N;fvQ%I <TR style="HEIGHT: 14.25pt" height=19>
DtNzP2JJ <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD> t1?
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<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
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@DXO <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>粘度100mPa.s</FONT></TD>
T2wh"@jg JF.xH <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>!Kcc Z2[
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>

SD0n*F6t@ <TR style="HEIGHT: 14.25pt" height=19>
(z[)S?U[4mG <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>

TUD ?4Y BM <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
v"d^H:\I <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN25 "><FONT face=宋体>DN25<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>
a-P oO%{ <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.3-0.6</FONT></TD>` z]G d4kEYT_
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>c;Hxc.Y~k| E
<TR style="HEIGHT: 14.25pt" height=19>
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y'E <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
(uPP(`X3},X"jfx l3v { <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD> RA3u*|/VF0u^
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN50 "><FONT face=宋体>DN50<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>"c Uf:CkNtI(ge
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.5-0.7</FONT></TD>
QU7jJ$h <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
Rx(m[7_lyq <TR style="HEIGHT: 14.25pt" height=19>1Ja8}5xfE-mU
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>/RsONY_&]"q
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
w,dH3b4jx%| <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>DN100</FONT></TD>
jz'W(L'J?jw} <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.7-1.0</FONT></TD>
;X!~2| ^L"yJg&T3C <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
miY7A|?4hU <TR style="HEIGHT: 14.25pt" height=19>Q.~)S`yi;oOU#\
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
QX&G$f7|C7r ``R <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
9z*SLRj.Xf;w!]b <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN200 "><FONT face=宋体>DN200<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>
BK2s9SW!Ze <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>1.2-1.6</FONT></TD>]~8nX{e
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
)JiLJu-L <TR style="HEIGHT: 14.25pt" height=19>0h%z}@pe:Ln8lr
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>

pZ(nM`B.F.] <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>Xe s&was u&c
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>粘度1000mPa.s</FONT></TD>(xC0fJi V Dv
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>"]#{*G+K,EM D
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>{9\Y
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<TR style="HEIGHT: 14.25pt" height=19>u!`0?2g$xwR
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>,V"H)daSQ&L$Ms*I
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
9f(W4K n(E3F <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN25 "><FONT face=宋体>DN25<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD> pp)y;e3mG"unN
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.1-0.2</FONT></TD>
/n0i kF"Fnz? t <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
$]"H{"@'fQ/B <TR style="HEIGHT: 14.25pt" height=19>
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<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>o{&R
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<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN50 "><FONT face=宋体>DN50<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>
5NdF?Z'io <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.16-0.25</FONT></TD>
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<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
(Jc#JU^|1O <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>DN100</FONT></TD>
C7N!U&VUAzv8f&Q <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.25-0.35</FONT></TD>br)ZR"v0VAb \,O j
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<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
4E])y4x2VC;oiy9Zl}jP <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN200 "><FONT face=宋体>DN200<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>
.u`w+Sr(z!{A0Ql8o$J <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.35-0.55</FONT></TD>
w#~i*YR'YZ v <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR></TBODY></TABLE></DIV>

bufferman 发表于 2005-12-20 19:27

谢谢坛主了！数据正确。

admin 发表于 2005-12-20 19:37

[quote]原帖由 [i]bufferman[/i] 于 2005-12-20 19:27 发表
~ gPdg+l&]U 谢谢坛主了！数据正确。 [/quote]
hX-_w1yA a%T)H)U 给你添麻烦了，不过这样版面美观点。
+H)hC-O vNn bY
rqH)i6D0YL 谢谢你了。

ojj 发表于 2005-12-26 19:57

有用，谢谢共享

yb_power 发表于 2006-1-17 10:26

希望多发这类帖子

zbm55016 发表于 2006-4-18 21:51

非常感谢，对我们搞泵的人大有用处，再次感谢！

85198277 发表于 2006-9-15 19:29

特殊

有没有超低温介质液氧的相关数据？

hn3237161 发表于 2006-9-21 01:29

85198277 你需要液氧泵的什么数据，我现在设计的卧式离心液氧泵在国内是最大的，流量60立方／小时，扬程108米，已经用在我国的航天发射场了，不知道对你有没有帮助。我的[email]fuyiping15@yahoo.com.cn[/email]

admin 发表于 2006-9-21 09:39

回复 #18 hn3237161 的帖子

发点上来我们大家都见识见识如何？:D

zdm 发表于 2006-10-24 18:58

[size=3][color=#000000][font=宋体]以下是本人收集的有关油流速的资料，希望对大家有帮助。[/font][size=14pt][/size][/color][/size]
LM C/Y;E"| SXe M [align=center][color=#000000][font=宋体][size=14pt]油封系统输油泵流速与管径选取[/size][/font][size=14pt][/size][/color][/align][table][tr][td=2,1,162][align=center][size=3][color=#000000][font=宋体]主油泵流量[/font][font=Times New Roman](l/min)[/font][/color][/size][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]35[/color][/size][/font][/align][/td][td=1,1,81][align=center][size=3][color=#000000][font=Times New Roman]50[/font][font=宋体]～[/font][font=Times New Roman]70[/font][/color][/size][/align][/td][td=1,1,81][align=center][size=3][color=#000000][font=Times New Roman]100[/font][font=宋体]～[/font][font=Times New Roman]140[/font][/color][/size][/align][/td][td=1,1,81][align=center][size=3][color=#000000][font=Times New Roman]200[/font][font=宋体]～[/font][font=Times New Roman]230[/font][/color][/size][/align][/td][td=1,1,81][align=center][size=3][color=#000000][font=Times New Roman]400[/font][font=宋体]～[/font][font=Times New Roman]560[/font][/color][/size][/align][/td][/tr][tr][td=1,1,81][align=center][font=宋体][size=3][color=#000000]供油[/color][/size][/font][/align][/td][td=1,1,81][align=center][size=3][color=#000000][font=宋体]管径[/font][font=Times New Roman](in)[/font][/color][/size][/align][align=center][size=3][color=#000000][font=宋体]速度[/font][font=Times New Roman](m/s)[/font][/color][/size][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]1[/color][/size][/font][/align][align=center][font=Times New Roman][size=3][color=#000000]0.87[/color][/size][/font][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]1 1/2[/color][/size][/font][/align][align=center][size=3][color=#000000][font=Times New Roman]0.63[/font][font=宋体]～[/font][font=Times New Roman]0.95[/font][/color][/size][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]2[/color][/size][/font][/align][align=center][font=Times New Roman][size=3][color=#000000]0.95[/color][/size][/font][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]2 1/2[/color][/size][/font][/align][align=center][font=Times New Roman][size=3][color=#000000]1.13[/color][/size][/font][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]3[/color][/size][/font][/align][align=center][size=3][color=#000000][font=Times New Roman]1.15[/font][font=宋体]～[/font][font=Times New Roman]1.51[/font][/color][/size][/align][/td][/tr][tr][td=1,1,81][align=center][font=宋体][size=3][color=#000000]回油[/color][/size][/font][/align][/td][td=1,1,81][align=center][size=3][color=#000000][font=宋体]管径[/font][font=Times New Roman](in)[/font][/color][/size][/align][align=center][size=3][color=#000000][font=宋体]速度[/font][font=Times New Roman](m/s)[/font][/color][/size][/align][/td][td=1,1,81][align=center][font=宋体][size=3][color=#000000]—[/color][/size][/font][/align][align=center][font=宋体][size=3][color=#000000]—[/color][/size][/font][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]2 1/2[/color][/size][/font][/align][align=center][size=3][color=#000000][font=Times New Roman]0.23[/font][font=宋体]～[/font][font=Times New Roman]0.35[/font][/color][/size][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]3[/color][/size][/font][/align][align=center][font=Times New Roman][size=3][color=#000000]0.35[/color][/size][/font][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]4[/color][/size][/font][/align][align=center][font=Times New Roman][size=3][color=#000000]0.49[/color][/size][/font][/align][/td][td=1,1,81][align=center][font=Times New Roman][size=3][color=#000000]5[/color][/size][/font][/align][align=center][size=3][color=#000000][font=Times New Roman]0.47[/font][font=宋体]～[/font][font=Times New Roman]0.66[/font][/color][/size][/align][/td][/tr][/table][size=3][color=#000000][font=Times New Roman]*[/font][font=宋体]注：[/font][font=Times New Roman]1 in=25.4mm[/font][/color][/size]
-b x8[,g{j [size=3][color=#000000][font=Times New Roman]*[/font][font=宋体]流速的选定随管径而异。流速选得低，会增大管件与阀门尺寸，使设备笨重；如选得过高，则管路阻力过大，易带走污物。吸入管路流速过高会出现抽空、涡流及噪声。回油管路流速过高，则回油不畅。通常选取吸入管路流速为[/font][font=Times New Roman]0.5[/font][font=宋体]～[/font][font=Times New Roman]1.5m/s[/font][font=宋体]，供油管流速为[/font][font=Times New Roman]0.63[/font][font=宋体]～[/font][font=Times New Roman]1.84m/s[/font][font=宋体]，回油管流速为[/font][font=Times New Roman]0.23[/font][font=宋体]～[/font][font=Times New Roman]0.69m/s[/font][font=宋体]。参见上表。[/font][/color][/size]%lHfqt.Y!t0s
[size=3][color=#000000][font=Times New Roman]*[/font][font=宋体]对粘度高的油品，可选取供油管流速为[/font][font=Times New Roman]0.5[/font][font=宋体]～[/font][font=Times New Roman]0.6m/s[/font][font=宋体]，回油管流速为[/font][font=Times New Roman]0.2m/s[/font][font=宋体]。[/font][/color][/size]
g6@8\5c?)nf [color=#000000][size=4][size=3][font=宋体]对粘度低的油品，吸入管流速可提高到[/font]1[font=宋体]～[/font]2m/s[font=宋体]，供油管流速提高到[/font]2[font=宋体]～[/font]4m/s[/size][font=宋体]。[/font][/size][/color]

查看完整版本: 介绍‘经济流速’