不同介质在管道中的流速表.docx

介质管道种类及条件流速饱和蒸汽Dg>2003040Dg=2001002535Dg<1001530低压蒸汽P<1Mpa(A)1520中压蒸汽P=14Mpa(A)2040高压蒸汽P=412Mpa(A)4060过热蒸汽Dg>2004060Dg=2001003050Dg<1002040二次蒸汽：利用时1530不利用时60乏气排气管：从受压容器排出80从无压容器排出1530高压乏气80100压缩气体真空510P0.3Mpa(G)812P=0.30.6 Mpa(G)1020P=0.61 Mpa(G)1015P=12 Mpa(G)812P=13 Mpa(G)86P=330 Mpa(G)0.53氧气P=00.05 Mpa(G)5.010P=0.050.6 Mpa(G)78P=0.61 Mpa(G)46P=12 Mpa(G)P=23 Mpa(G)3.04.0煤气管路长50100米P200毫米汞柱0.753P2000毫米汞柱812P6000毫米汞柱312半水煤气P=0.10.15 Mpa(G)1015天然气30烟道气烟道内36管路内34氮气P=510Mpa(A)25变换气P=0.12 Mpa(A)1015氢氮混合气P=2030 Mpa(A)510氨气P=真空1525P<0.3 Mpa(G)815P<0.6 Mpa(G)1020P2 Mpa(G)38水及粘度相似液体P=0.10.3 Mpa(G)0.52P1Mpa(G)0.53P8 Mpa(G)23P2030 Mpa(G)23.5热网循环水、冷却水0.51压力回水0.52无压回水0.51.2自来水主管P=Mpa(G)1.53.5支管P=Mpa(G)11.5锅炉给水P>0.8 Mpa(G)>3.0蒸气冷凝水0.51.5冷凝水自流0.20.5过热水2油及粘度大的液体油及相似液体0.52粘度50厘泊Dg250.50.9Dg500.71.0Dg1001.01.6粘度100厘泊Dg250.30.6Dg500.50.7Dg1000.71.0Dg2001.21.6粘度1000厘泊Dg250.10.2Dg500.160.25Dg1000.250.35Dg2000.350.55液氨P=真空0.050.3P0.6 Mpa(G)0.30.8P2 Mpa(G)0.81.5排出废水0.40.8泥状混合物浓度：15%2.5325%3465%2.53气体鼓风机吸入管1015鼓风机排出管1520压缩机吸入管1020压缩机排出管P<1 Mpa810P=110 Mpa1020P>10Mpa812往复式真空泵吸入管1316往复式真空泵排出管2530油封式真空泵吸人管1013水及粘度相似液体往复泵吸入管0.51.5往复泉排出管12离心泵吸入管(常温)1.52离心泵吸入管(70110)%。0.51.5离心泵排出管1.53高压离心泵排出管33.5齿轮泵吸入管1齿轮泵排出管12氨气<8