泵阀技术论坛 | 泵阀技术网 » 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。
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|"X 介质为水时3o-L)kXA_
用于一般给水：   主压力管道         流速：    2至3m/S
$u'|6Oj{me                            低压管道                      0.1至1m/S
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0GA,X:H(Z9L 工业用水：      离心泵压力管                      3至4m/S_ p(Rmh:mA(q*vp
                     离心泵吸水管                      1至2m/S（管径小于250）
5?~)Gh l|D                                                              1.5至2.5m/S（管径大于250）
XC*z7g9L9Uc                            给水总管                      1.5至3m/S-z*o BV8R.sI
                              排水管                      0.5至1m/S
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冷却：                     冷水管                      1.5至2.5m/S
e.q'dC2tD5[F)V                               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。
6n?nf,AP l%] 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:T"I:{J5q
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。-i%N*y3Ik a4c
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]J1lo:T(}1qWI#y
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。@1TU0~8\v,TJ?
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！%n*kBZEy4I
这个不知行不行！
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sM5CW*q,U xVT <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>D5oJh#a;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>冷水管</FONT></TD>AM1zKM)}
<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>.S@&^Pc`5a1J
<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>
[2qPi bx <TR style="HEIGHT: 14.25pt" height=19>L{O;QP0_o_C
<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>Y7J7{;g 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>　</FONT></TD>0|6E{l `#b)dZ?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>热水管</FONT></TD> Ipu+tP
<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>
$_G6Pd{_N:^f r <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>r6_e~-C`
<TR style="HEIGHT: 14.25pt" height=19>
1c"?2P5UD)oJ <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
7dU3s`EX <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>凝结</FONT></TD>
*OY"purJ <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>凝结水泵吸水管</FONT></TD>:n~}C1V.Z{
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.5-1</FONT></TD> wlR}7q$F3i!|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>#Z2U^ R V-IC6hMg
<TR style="HEIGHT: 14.25pt" height=19>
az,a5g6v7I <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>
|y2h!_;MM5n7X(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>6^FIj,t*d1N
<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>
"S^fEz(ug[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" x:num><FONT face=宋体>1-2</FONT></TD>
y9Sy?o ]vj8R <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?Np}8euZd
<TR style="HEIGHT: 14.25pt" height=19>
Dyx[QI <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>
G h'\\ ZTFd{ 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>Izw*tWg.B 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>自流凝结水管</FONT></TD>7yL V(zQ,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"><FONT face=宋体>0.1-0.3</FONT></TD>$Dzl7EcD7G#}-[
<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>
MLQ?v [t <TR style="HEIGHT: 14.25pt" height=19>
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cHJX/G <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>
i A3uc5UtvJX.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>一般液体</FONT></TD>
1D
bB@1[#aA1FU <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>G/F7v+NzJl&{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>1.5-3.0</FONT></TD>
2Vj\2@/n2u W <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>
y6Ra9v,k&iw+fk <TR style="HEIGHT: 14.25pt" height=19>4v_0Up]
<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>:Z]9cb6][&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>高粘度液体</FONT></TD>
.|N0L*J"ni%Ek2? <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>\7f_'B"Q6JpL
<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>:]0vAUyp1U.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>
N{V&pZ*q'I <TR style="HEIGHT: 14.25pt" height=19>S.V"Og[8s l
<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.X:X k2w'd'j.l*d6p.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>
?N-fmWQ <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>$_T#d Y#f 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>0.5-0.9</FONT></TD>|B3\&qZ3Vx
<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>
"Ec:x!b;xu[m <TR style="HEIGHT: 14.25pt" height=19>
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FFp <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>ARm_~ L,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"><FONT face=宋体>　</FONT></TD>:?,RDQu
<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>hl]Q:@Z3] k$w.Ud!|!M7V
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.7-1.0</FONT></TD>Z8kS!ghd;eco`5a
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
R5I9O6y:W8y <TR style="HEIGHT: 14.25pt" height=19>`+lOfmEj
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
*R'[)VtE#k K2H <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>(bnK&Q:I#q;n3a8Bd
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN100 "><FONT face=宋体>DN100<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>z~j m"m$p5HL5g
<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>1m,}u%m'k5S0z`
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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></TR>x4?|m@} TR%g
<TR style="HEIGHT: 14.25pt" height=19>9LA(DG)JB&C7X.`
<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>5i}*Qxh
<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>
J;}9d0} p2SC <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>
1J ~*?%@}\GN <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>J,^_2I^k
<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>
B[oBxu;[} <TR style="HEIGHT: 14.25pt" height=19>)k2J+q*T6`!{\
<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>
0sX9Kq/q}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>
;K#] bX`Hy <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>
GD9s~'Sb(zL <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>,W){KD7]&O ~M6|
<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>ld+Q]g5m
<TR style="HEIGHT: 14.25pt" height=19>
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d-n v)k \Q:X <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>
\|7uBoKG+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>z9J,bz@~ [
<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>
I*S6Am,V)@Z5O <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>
e*}/ll7KH%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"><FONT face=宋体>　</FONT></TD></TR>
9JU*x/F5EmxH <TR style="HEIGHT: 14.25pt" height=19>3nt'Os hIsK2O_Jm
<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>
[wR[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>-K'R;O9F2|h*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>DN100</FONT></TD>*YbKh]"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>0.7-1.0</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></TR>a0f@ dT2K_2e
<TR style="HEIGHT: 14.25pt" height=19>;x?V }5q]S
<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 [FH nz)o-W2~[ <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d2n0@:N-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" x:str="DN200 "><FONT face=宋体>DN200<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD> re3l'U4c*hy,@3A
<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>
$Cf)~ c8D W <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR> \Km-Z!X].x O
<TR style="HEIGHT: 14.25pt" height=19>
0a!\S"M,R Bf1r <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>
t0rC[;E.@8M5S7`8Y)zoJ <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>{*B;{^^0H @
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>粘度1000mPa.s</FONT></TD>
}Ofp2R/C5O3y4G <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>.sv+TXH&TVC A
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
FjxX k-xF~ <TR style="HEIGHT: 14.25pt" height=19>iS_eX{E
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>;z$MM rC
<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>"GAN$Yc h
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN25 "><FONT face=宋体>DN25<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>IX/ZK1@0{9y`-dc`$^
<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>
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k.s ]J7SD^ <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} gf~0j#O+[/u:A2i <TR style="HEIGHT: 14.25pt" height=19>
@`mB2z'q u)qd1\ <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>OClW4H0U
<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>
c0FG&}/cl'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" x:str="DN50 "><FONT face=宋体>DN50<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>U;WH~S:RG?"e/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>0.16-0.25</FONT></TD>L'\wrZ+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"><FONT face=宋体>　</FONT></TD></TR>Qsw khe"I[1U
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#c}C,D vq ] g <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:DEvJH{+E3R-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>
r1jo*GU1\ <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>
Kn$f8V%uzS2r,A'T <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.25-0.35</FONT></TD>
2?o(dHRG{8NL <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>a0x+i$Pc"yN
<TR style="HEIGHT: 14.25pt" height=19>v2dkR/tF"N/CL
<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>
nh,\FA 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>　</FONT></TD>
HO'y8x5n <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>
-}.nm8?Fhwq0| <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>y,Z r9{3W?
<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
3P\*ViEZl:qX 谢谢坛主了！数据正确。 [/quote]
Z7L*Tq {6g.e2C 给你添麻烦了，不过这样版面美观点。s9z#A/M ja
Pp~fYV
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]*{DG-I!}
[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]
,S+U
up7ix{7G [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]6[ |s,H5`qY
[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] e0|#Jm)p"f7xD1s
[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’