介绍‘经济流速’(页 1) - 泵理论与设计 - 泵阀技术论坛 | 兰泵技术论坛

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。
介质为水时
用于一般给水：主压力管道       流速： 2至3m/S
                        低压管道                   0.1至1m/S

工业用水：    离心泵压力管                   3至4m/Sl@;p-n/A
                  离心泵吸水管                   1至2m/S（管径小于250）1Pg,flK$^?
                                                         1.5至2.5m/S（管径大于250）
                        给水总管                   1.5至3m/SNa'E TU
                           排水管                   0.5至1m/Sgi$y*jXeQ

冷却：                   冷水管                   1.5至2.5m/S
                           热水管                   1至1.5m/S

wanggh 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。
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:
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。*su])Z-J
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]^,td&LkB"l-r
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。u0w1D2C*s
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！7YXQ9~_bl;s!b
这个不知行不行！
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管道内流速常用值(m/s）</TD></TR>
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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">　</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">冷水管</TD>qd&h&fF+}6ml?
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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">　</TD></TR>
<TR style="HEIGHT: 14.25pt" height=19>3}'AyfAis ~
<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>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>-njJ5_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">自流凝结水管</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">0.1-0.3</TD>GFU5\\@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">　</TD></TR>6~-F5} [ F$`H
<TR style="HEIGHT: 14.25pt" height=19>gK!?HA+l
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">一般液体</TD>f(i1AP8Nxr+_!wLJ
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">低粘度</TD>tr_Ep`3}
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">1.5-3.0</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>O#]u9f7[:v]
<TR style="HEIGHT: 14.25pt" height=19>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">高粘度液体</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">粘度 50mPa.s</TD>#g-MG(oM2~s
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>]p4akC#CU(V&fw$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">　</TD></TR>
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>0Sct'Qd%PC-p/m3H
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">DN25</TD>K6eev'Ch{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">0.5-0.9</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>0_/nw$_3ld4MJtG
<TR style="HEIGHT: 14.25pt" height=19>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 14.25pt; BACKGROUND-COLOR: transparent" height=19>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>%Z]JP8u7tPV'j
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent" x:str="DN50 ">DN50 </TD>$d0?:{2NBK7ad
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">0.7-1.0</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>_!`2` J'OBT#U
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>8tj4I!a5JQBY'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="DN100 ">DN100 </TD>ki?k&ugN
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">1.0-1.6</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>$Z!C A[g]
<TR style="HEIGHT: 14.25pt" height=19>x~)zu;e5`
<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>　</TD>#TON'x,Y(J#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">　</TD>/X'T3xUp{B9z
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">粘度100mPa.s</TD>#m:su"ryT0k"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">　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>^w|2|*Or^\
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>BOP[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="DN25 ">DN25 </TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">0.3-0.6</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>
<TD 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 ">DN50 </TD>7k |;SDj.Af!zx
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">0.5-0.7</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>*aaR@"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">　</TD>/Gv`O(f Qv
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">DN100</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">0.7-1.0</TD> NVU8w#V!{}6q
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>
<TD 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 ">DN200 </TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">1.2-1.6</TD>[w7H*}+I&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">　</TD></TR>
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>;Cs-YJoo
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">粘度1000mPa.s</TD>z V@q$RmK
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>%cG.X%cC+~
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>
<TD 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 ">DN25 </TD>m#~)n(q#v+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">0.1-0.2</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>!Sx yZ?P:o&w2j
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>ni`n*j{6?k: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" x:str="DN50 ">DN50 </TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">0.16-0.25</TD>-zHnlB:R&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">　</TD></TR>
<TR style="HEIGHT: 14.25pt" height=19>1dQ-Eadkc
<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>　</TD>4F,B/N~5S 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">　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">DN100</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">0.25-0.35</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR>
<TR style="HEIGHT: 14.25pt" height=19>
<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>　</TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD>
<TD 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 ">DN200 </TD>
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">0.35-0.55</TD>l*Ch(iBP0a
<TD class=xl23 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent">　</TD></TR></TBODY></TABLE></DIV>

bufferman 发表于 2005-12-20 19:27

谢谢坛主了！数据正确。

wanggh 发表于 2005-12-20 19:37

[quote]原帖由 [i]bufferman[/i] 于 2005-12-20 19:27 发表3u5_+Wj:s|
谢谢坛主了！数据正确。 [/quote]3[ qt3T,f
给你添麻烦了，不过这样版面美观点。!Q$v/[XV7VeQ)\

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]

wanggh 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]+C|ic}2{ k
[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]
[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]
[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]
[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]

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