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。z{&h9IH.?gL@
介质为水时
'X?3QN Z$HM)}(ef 用于一般给水：   主压力管道         流速：    2至3m/SL|g3Q:t&B d5]4l
                           低压管道                      0.1至1m/S
b{ A P[b 8@w2U1l-A1g
工业用水：      离心泵压力管                      3至4m/Se@8Rl1j;\
                     离心泵吸水管                      1至2m/S（管径小于250）
pq]X'z5XO P;b                                                              1.5至2.5m/S（管径大于250）yzU5~/P
                           给水总管                      1.5至3m/S0~1oJA/c*Q.p6I
                              排水管                      0.5至1m/Sk*o:^%E RyR#`j

W.mB'i,q:K%{b 冷却：                     冷水管                      1.5至2.5m/S
ft5T ~ n                               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。+w&@T2T#~g1BhJ
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:
]K,Vb_pQo 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。
v!{[)A;D/HR 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]%D(c3T!K9X_ |$M
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。rA2Ck"sQk] R
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！
!`Ai&P.D 这个不知行不行！q^3R^n,P([Fz+x9x
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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>低压管道</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>泵出口</FONT></TD>
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[@.r4oa{N~!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>冷却</FONT></TD>
"qz7Qi~.]GnVK <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>
[,H&c~-^&F/|4@} <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>
Xd H5k1q*ib.fG`#~ <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>;~
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<TR style="HEIGHT: 14.25pt" height=19> H5r
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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>E7S2t/c-V'K Z
<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>
pS mS;hv+k/s <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>Kyi?sV2J
<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>{7XIrN8vw)D)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></TR>
,c:{.jPh3fJ$W+j <TR style="HEIGHT: 14.25pt" height=19>
m/ED/[Q,h-n_a <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>y2|!w Y;x'YP\
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>凝结</FONT></TD>:v f"r;iD+@
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>凝结水泵吸水管</FONT></TD>0B-[6p n^2es+X x
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.5-1</FONT></TD>
.Y*i'l}7F <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>L6~Dj&C4gUB
<TR style="HEIGHT: 14.25pt" height=19>o9O e_`-aRO
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>n1s*?9p`&~1g
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
%]YU/\ C!ec%D$E$HI <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>凝结水泵出水管</FONT></TD>
m9F3KC_!a&sjK4A x9p <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:num><FONT face=宋体>1-2</FONT></TD>
h&Gp:zi/Dz <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>|(cKrtK
<TR style="HEIGHT: 14.25pt" height=19>
}S+X8i h1S <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
\0S?x-C0N <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>+[
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<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>自流凝结水管</FONT></TD>*\N%y^YxX
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.1-0.3</FONT></TD>-bJ
LzeeiS1V
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
:c$H5AG-a f7L <TR style="HEIGHT: 14.25pt" height=19>
Jg$d!^ EZo~3YU <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>r:F4J"`^2K*}~U1Ra
<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>FkN%e!IZ
<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>
I4c`8@9Ph[!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>1.5-3.0</FONT></TD>z
K"V(|2p&\8d n|'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>　</FONT></TD></TR>8@g(l7e?.t k/C_
<TR style="HEIGHT: 14.25pt" height=19>H"YOPmM&q lb
<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>
'kF/_9B.Kr1E#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>高粘度液体</FONT></TD>'hE}
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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>粘度 50mPa.s</FONT></TD>d VWy9F0`!W*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>
hV7?*@Tz <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>
(O{M bI <TR style="HEIGHT: 14.25pt" height=19>1T"G$bJ~
<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>
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N 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>
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v5O <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>s*k:Os6m{
<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>.V"S%]4s[P)D,D: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>9f T5K"b%JRszxj8XV
<TR style="HEIGHT: 14.25pt" height=19>
ch-N'bvb2q <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>
k jUN
fL <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>
A}_3Dt&] {"kLQ@ <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>)j.XuX fy7R8r
<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>t/z_'`n~)C9|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> W g4M1HSnK
<TR style="HEIGHT: 14.25pt" height=19>
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n.~ <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>
C$gF{-hQ0Lz <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>"D2Gkh{#Ji\;S-m
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN100 "><FONT face=宋体>DN100<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>]"j VAUDc
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>1.0-1.6</FONT></TD>
WW1|3z+g <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
tu-[b!e5rp <TR style="HEIGHT: 14.25pt" height=19>
0eaPM/NiM6}M_p <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
3q@F;Q9r7{$@ <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>
&JX)DA wt,^&pOW <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>
;W$n-y#mch5N5_ <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>8E7RXMlq
<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>
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C_{anT4nUM <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>-M P_1~ a!nM3rP
<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>9bT6vu-Zl-Ei
<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>
~+IQ"P&z0`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>0.3-0.6</FONT></TD>
R SLYA1s <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@/XE\u
<TR style="HEIGHT: 14.25pt" height=19>
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y| <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>:asI,rzU7McvMahS
<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>VT"p-qz'p Vb 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="DN50 "><FONT face=宋体>DN50<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>+`N9R8_AtR4Gi
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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>0.5-0.7</FONT></TD>icm!O"`)ru6_#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>　</FONT></TD></TR>
0L9J*f3m/N7W/^ <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>
2['I0P!r/P <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>
G@'B3s"V*N1N <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>
5Nz8u b u ER`!\2z <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>
HI.F[)R <TR style="HEIGHT: 14.25pt" height=19>9m8H1Q8h0T,y
<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>J1Jxvz.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>
Fk!m.BR;rc[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" x:str="DN200 "><FONT face=宋体>DN200<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>
gU0AF;@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>1.2-1.6</FONT></TD>
)brI$x1x'i!II"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>　</FONT></TD></TR>};Y'm8SJrY9{e
<TR style="HEIGHT: 14.25pt" height=19>
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u7~qT8oJN <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>2L)@y3|o [Y
<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>4y0]t(O)OU&Nx
<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>
-T9]4tv._R?C3{(vj <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>
,zCJdj+G|)M <TR style="HEIGHT: 14.25pt" height=19>2W%PD(|8ab[B t] lC
<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?8e4fo-|+VO <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>
3[ys{e Y.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" x:str="DN25 "><FONT face=宋体>DN25<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>
(\R;m.TJ1e <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>
5DB"kQ`(qPj^^Z&w#Ts <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>
^hGJ&b E En#pZ <TR style="HEIGHT: 14.25pt" height=19>
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@%p5O!Q2SthJ*D+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>　</FONT></TD> cv?*Li*U(Hl;Y
<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> N3K9Js4z;Tzp
<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>kT,Z;?X~
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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>DN100</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>U.^]p Z_#v`/Zf
<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>$Ds$Fr)|#~4EF
<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> E XO$v+W%zAI
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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
2I8I;iP ][ 谢谢坛主了！数据正确。 [/quote] [2nvAnc4N6l
给你添麻烦了，不过这样版面美观点。yP F8L-F7g7I _

p0vM,mv9GC&R 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]/dtA;zbiWY
[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]
e'j!o&`k [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]-P'w}0waH%k1u"av
[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]
yCS dGL+\j&}mNzz [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]

青山 发表于 2006-11-1 13:07

好东西,谢谢你们能提供这些

lxc866733 发表于 2006-11-24 23:34

谢谢，简明实用的好资料。

ancenylee 发表于 2006-11-30 09:27

谢谢楼主，第一次上论坛就遇上好资料了:D

LZY7913 发表于 2006-12-3 20:55

非常感谢，对我们搞泵的人大有用处，再次感谢！Tzy)LAo qLQ
     呵呵，虽然与现在的研发主流不一致，但还是好东西啊，以前翻书可苦了，而却记不住，现在看一次就记住了

qzx666 发表于 2006-12-4 07:30

欢迎23、24楼的朋友，请积极参加技术讨论

thpgl 发表于 2006-12-12 16:28

入门级资料，不过挺实用

qzx666 发表于 2006-12-13 07:36

回复 #26 thpgl 的帖子

既然是入门级的资料，那您就发点高水平的资料给我们看看

欣泉泵业 发表于 2007-1-4 12:23

:victory: 谢谢受教了

jianfengsbk 发表于 2007-1-5 15:34

非常感谢。学习。

jianfengsbk 发表于 2007-1-5 16:04

已经拷贝下来，以后肯定有用。

查看完整版本: 介绍‘经济流速’