管道流速对照表

管径流量m3/h(DN)0.4m/s0・6m/sO.8m/s1.Om/s1.2m/s1・4m/s200.50.70.91.11.41.6250.71.11.41.82.12.5321.21.72.32.93.54.1401.82.73.64.55.46.3502.84.25.77.18.59.9654.87.29.611.914.316.7807.210.914.518.121.725.310011.317.022.628.333.939.612517.726.535.344.253.061.915025.43&250.963.676.389.120045.267.990.5113.1135.715&36m/s1.82.84.67.2319.129.045.270.7101.8181.01・8m/s2・Om/s2.2m/s2.4m/s2.6m/s2.8m/s3.0m/s2.02.32.52.72.93.23.43.23.53.94.24.64.95.35.25.86.46.97.58.1&78.19.010.010.911.812.713.612.714.115.617.018.419.821.221.523.926.328.731.133.435.832.636.239.843.447.050.754.350.956.562.267.973.579.284.879.58&497.2106.0114.9123.7132.5114.5127.2140.0152.7165.4178.1190.9203.6226.2248.8271.4294.1316.7339.325070.7106.0141.4176.7212.1247.4282.7300101.8152.7203.6254.5305.4356.3407.1350138.5207.8277.1346.4415.6484.9554.2100181.0271.4361.9452.4542.9633.3723.8450229.0343.5458.0572.6687.1801.6916.1500282.7424.1565.5706.9848.2989.61131.0600407.1610.7814.31017.91221.41425.01628.6管径(DN)流速推荐值m/s:20253240506580闭式系统0.5-0.60.6-0.70.7-0.90.8-10.9-1.21.1-1.41.2~1.6开式系统0.4-0.50.5-0.60.6-0.80.7-0.90.8-1.00.9-1.21.1-1.42.1管道内各种介质常用流速范囤31&1353.4388.8424.1459.5494.8530.1458.050&9559.8610.7661.6712.5763.4623.4692.7762.0831.3900.5969.81039.1814.3904.8995.31085.71176.21266.71357.21030.61145.11259.61374.11488.61603.21717.71272.31413.71555.11696.51837.81979.22120.61832.22035.72239.32442.92646.52850.03053.61001251502002503003504001.3-1.81.5~2.01.6-2.21.8-2.51.8-2.61.9-2.91.6~2.51.8-2.61.2-1.61.4-1.81.5~2.01.6~2.31.7-2.41.7-2.4管道内各种介质常用流速范用见表2.1,表中管道的材质除注明外，一律为钢。该表中流速为推荐值。2.2管道压力降控制值管道压力降控制值见表2.2—1和表2.2—2。该表中压力降值为推荐值。表2・1常用流透的范图表介质工作条件或管径范屉流速m/s飽和蒸汽加>20030〜40恥20070035〜25DAf<10030〜15饱和裁汽P<1MPa15〜20P=1〜4NP日20-40P=4〜12NPa40-60过热藻汽£W>2O040〜60恥20070050-30DNV10040-20二次裁汽二次燕汽要利用时15-3060高压乏汽80-100排气管：从受压容器排出80从无压容器排出15-30压缩气体5-100.3MPa（表）8-12P=0・3〜0・6MPa（却20〜10P=0,6〜1MPa（表）15-10阳〜2MPa（表＞12^8P=2〜3MPa（表｝8〜3P=3〜3OMPa（表）3-0.5氧气注②^0-0.05MPa（表）^=0.05~0.6MPa（表）^O.S-1MPa（表）A=2〜3HPw（表）10〜58-66~44-3煤气管道长50-100m^0.027NPa5-0.75/^O.27MPa12〜e/^0.8MPa12〜3半水煤气^0.1-0.15MPa（表）1075天然气30烟遣气烟道内3〜6管道内3-4石灰窑窑气10-12澱气^=5-10MPa25氢氨混合气洼③斤20•〜3QMPa5-10氮气d真空15-25^<0.3MPa｛表）8-15/><0.6MPa（表）10-20PV2MPa（表）3-8乙烯气A=22-150MPa（表）5-6乙快气注④P<0.01MPa（表〉37P<0.15MPa（表）4-8（最大）P<2.5MPa（表）用大4气体氯仿液体氯化氢气体（钢衬胶曾）腋饰（橡胶骨〉气体（嗾璃管）液体（玻璃管）10-251.5102201,5101.2瓠化甲烷气体:补202氯乙烯二氯乙烯三鬣乙烯2乙二醇2苯乙烯2一澡乙烯玻璃管1水及粘度相似的液体A=0,1-0.3MPa（表）0.5〜2/^1MPa（表）3-0.S/^8MPa（表）3〜2/^2O-30MPa（表）3.5-2自来水主管P=0・3MPa（表）1.5-3.5支&h=0.3«Pa（表｝1-0-1.5锅妒给水E>0・8MPa（表）1-2—3.5蒸汽冷凝水0.5-1.5冷凝水自流0.2-0.5过热水2海水.澈碱水P<06MPa（表）X5〜2.5油及粘度较大的液体粘度0.05蹲・s/W25/W50加00粘度0,1P日・s彩5Z2V5OZZV100PV200粘度1P』・sZW25ZW50DM00DN2CQ0.5-0.90.7-1.01.0-1.60.3-0.60.5-0.70.7-1.01.2-1.60.1-0.20.16-0.250.25-0.350.350.55液氮g空医0・6HPa(表)F$2MPa(^)0.05-0.30・87・31.5-0.8氢氧化钠浓度0、30%230-50%1.550-73%1.2四氯化篠2浓度88-93%（铅管〉1.293700%（铸铁宦.钢管）1.2盐酸.（材胶管）1.5带有固体Z〜4.5i.-nt1.5拮出废水0.4-0.8泥状混合物浓度15%2.5-325%3〜465%2.5〜3鼓风机吸入管鼓风机排出管压缩机吸入管压缩机排出管：F<1WPa（表）F=110MPa（表）P>10MPa（表〉徃旦黄真空泉吸入管=出管汕封式更空泵吸入管107515〜2010-2010-810-20872137625〜301073往复泵吸入骨往良泵排出管离心泵吸入管C常温)加及粘度相似的液体离心泵吸入管(7o-nor)离心泵丼岀骨高压离心泵并出管虛轮泵吸入辔齿轮•泵排出管注：(II本衣所列臨速.在区用时还腕券皿和应的国嫌惋來②氣=汛迭应鬆尽了訓飞站儘讨觊抢》(GB50030—91).•31邈Hiifti里咸券照丫母•氣站啟it觊范b(GB50177—93)・»乙洙淤.叱H.發照｛乙灿站我计觊总》(GB50031—91).0.5-1.520.5-1.53375W11〜2表2.2-1一般工程设计的管道压力降控制值骨道类别最大摩擦压力降kPa/IOOm总压力降kPa液体泵进口管i泵出口管：ZW40.5093mo70zmoo及以上50蒸汽和气体公用物料总管按进口压力的5%公用物料文會按进口压力的2%压缩机进口管；Pv350kPa（表）1,875&350kPa（表）3.5-7压缩机出口管14-20姦汽按进口压力的3绻表2・22毎10On僧弋的床力降控制值（APr100）介管道种类压力降kPa负压管道注/^49kPa49kPa0.45MPm1.964.50.01P压缩机的排出管利其它压力管道P^0.45MPaP>0.45MPa4.50.01P工艺用的加热蒸汽管道G.3MPa<^O.6MPa0.6MPa