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。
kM[+w%Hi*JH 介质为水时
M&g4T&A C 用于一般给水：   主压力管道         流速：    2至3m/S
&] \*I M;@_bN                            低压管道                      0.1至1m/Si_&db(q2d

'[C'Y,q} 工业用水：      离心泵压力管                      3至4m/S8I~&dp`Z4TVW$m@.T
                     离心泵吸水管                      1至2m/S（管径小于250）(j5nx)tfHJ!Z
                                                             1.5至2.5m/S（管径大于250）
2r5Y~0~+N\ R                            给水总管                      1.5至3m/S
)_)p7_7nx2V-dPD                               排水管                      0.5至1m/SyN,B$j3H'zI

o2k:rH/j\(G[F 冷却：                     冷水管                      1.5至2.5m/S
e;` [3r[:?\!Z+t N,x:m                               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。8hS%g hU
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:f#w |"W[*?F|,{
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。
'G.w`2EmJ?&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]
:xCpaJ
x 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。
N9z W([|;_l
_k,G 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！
'[b E]3{3ty1~ 这个不知行不行！ dog4s@.u.C)x
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@Fh3J1Z'@'YR x[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>冷水管</FONT></TD>
%Fno8s4vsm <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> NeRvS!t 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"><FONT face=宋体>　</FONT></TD></TR>?.o(X*Z'g Ky
<TR style="HEIGHT: 14.25pt" height=19>
:p{b"B0F"q ~8P <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]0|._HMq8s_\T-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>　</FONT></TD>
]%r2zdF8c^)~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>9i4U z2?'aFOT@0V
<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>
:Tk1E&I j/bLl <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>
;zu(BE:B#W!h9FL.X <TR style="HEIGHT: 14.25pt" height=19>
#Z y(C(s!Fu <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>`i5I6y
<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>Zzk0i#XB;dK$u
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>凝结水泵吸水管</FONT></TD>
,axpF2C*aw3FuN <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.5-1</FONT></TD>
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<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
`mZ'knSC Nr] <TR style="HEIGHT: 14.25pt" height=19>
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D}'e@%M <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>LzBjkh
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<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>
5p6D$xXtX5P ^ <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>
__T^!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:num><FONT face=宋体>1-2</FONT></TD>vY9V*t
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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>
+D$d.d:^(~ <TR style="HEIGHT: 14.25pt" height=19>
H+ekP/H^j&a|v <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>'o7v8E*?^n4Q0[
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>n5w W8i|&if
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>自流凝结水管</FONT></TD>
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a4GYp <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.1-0.3</FONT></TD>'yR,?*f7w]r6^-^
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>6]k#Q8aT#W {I
<TR style="HEIGHT: 14.25pt" height=19> e-X9X3[1y#|x:d
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>-{XG$oCv~
<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>5h+piJ0Pc(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>低粘度</FONT></TD>Rx @dpY\pno R zN^
<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>+l B8i4G-Z PD
<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>aPDIY
<TR style="HEIGHT: 14.25pt" height=19>'a^H4WX|7HTA
<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>
UqMWi.C&^kG!|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>高粘度液体</FONT></TD>
+V%?A ~F.`#EK3b#pz <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>,E}HP|#Z.`6z
<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>8Uhp? Cj
<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>uJ7X'LVe{m
<TR style="HEIGHT: 14.25pt" height=19>
2c
rZ1t4]7P*vk <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>1Ep Zyq/h2[ 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>
aya6Zt$Mg)| <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>DN25</FONT></TD> U2q3FXE~
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.5-0.9</FONT></TD>
-}?6T@?P wktu)q <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
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4zfH OK2o A)_/[z a <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19><FONT face=宋体>　</FONT></TD>6Xr}Ud D
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD>Q'u,A/aY2Jh[C.Z-R
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN50 "><FONT face=宋体>DN50<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>'G^| ~3S8Y`a/A!@
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>0.7-1.0</FONT></TD>
Vb!q|c7Z\:X!X^` k <TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent"><FONT face=宋体>　</FONT></TD></TR>
9o)V*S6Cq-q8QBt0}Q <TR style="HEIGHT: 14.25pt" height=19>$NfiH9JXk
<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>
Nv1q3i4Y+vqT <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"yK.iA
<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>H8A|9J;l
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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>1.0-1.6</FONT></TD>
$Q(be7`+g#YWV8gs <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>.@!\"J*{CTS
<TR style="HEIGHT: 14.25pt" height=19>
KI]6Q~UM] <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>
:F4}fM{[^0I*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>:i^xN]-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"><FONT face=宋体>粘度100mPa.s</FONT></TD>U"wR&[6y.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>t bb(P[ HPkM
<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>i"c joL6o
<TR style="HEIGHT: 14.25pt" height=19>
:py7o*{#L!f&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>wg5j+b)ES%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>.YP.H7Xg7b@5l
<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>
XH:yj vi.Iy5c <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>:y2S"ZrKr`
<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'eH3J,I_/o9B5G d
<TR style="HEIGHT: 14.25pt" height=19> VN1r|~ ^*tb-]
<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>
;LH+N]c4fr <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>
w9R u`4FW <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>
bCc$W@:n,v5b%c%nv7W <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>
#L|P!~(x]+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>
3o8R4vX3~k"TxrU <TR style="HEIGHT: 14.25pt" height=19>9CfF
~4Jl`i
<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>.j%b${4rr
<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>
ZO M@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>DN100</FONT></TD>
d6q'L
F` s0R <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>N Yjjw*?{
<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>
U!W9^q3vJj,f kJ <TR style="HEIGHT: 14.25pt" height=19>
yWut7m6I <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>
bs;wFY!mG
<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>
PA2Y^0p!eL{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" x:str="DN200 "><FONT face=宋体>DN200<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>&_[K8B7T5x
<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> kH&w#M eb[@,e,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>
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<TR style="HEIGHT: 14.25pt" height=19>
H:lM;z:oP)Y0Wg <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>
3bj}0Np%z.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>
)N[/P\t'Mi6X0j^ <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>o6oh EWb
<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>
J1}fo-h 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>
ry jd7w"X'{R:L <TR style="HEIGHT: 14.25pt" height=19>&VQ"W8axe_u%YlF
<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>0kiVE"f:O/dD
<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>9W.P!| \t@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" x:str="DN25 "><FONT face=宋体>DN25<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>
YD$Y~~6?U*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>0.1-0.2</FONT></TD>
1n` v YAd <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]aaGK^ <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>!p$afJP)}%I:r/kk+W
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN50 "><FONT face=宋体>DN50<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>`$]O;sj:P"{%r,G3i5F
<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*BzfN.SEw4Z
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j%z/k*PRo8E;[}1`%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>:{dh.[;jse3v@
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z.z$R9V\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+M?6^2A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="DN200 "><FONT face=宋体>DN200<SPAN style="mso-spacerun: yes"> </SPAN></FONT></TD>

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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*T4vb3i}+R:g
谢谢坛主了！数据正确。 [/quote]:HwxH2K W
给你添麻烦了，不过这样版面美观点。,VjC6N/z[#Ox0L
0["r4m,{,QH G
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]
QE.AK7b4vO [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 T AA0S~
[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]
;\D|\m0Q [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];C#A `s~!z
}
[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！
&^*OirKvm:[      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’