西气东输二线阀室放空系统设置-油气储运-齐建波-2011

289*():,,2009,28(9)63~65开展了西气东输二线阀室放空立管系统的设置研究,确定了放空方式放空立管直径放空管高度及其与阀室的距离等参数采用PHAST软件,对放空立管出口处可燃性气体的扩散过程进行了定量模拟,给出了可燃性气体意外燃烧热影响强度和范围西气东输管道阀室放空系统设置GB5018320041,,1,(1),,1一相关参数的确定1,,,,,3.5~4.5MPa,5MPa,6.6MPa,6.6MPa,,,8.2MPa2,,10~12h,12h33224168km,32km;,24km4,,,32km,,12MPa,1,,,*065000,146;:13803166507631(104m3/h)(h)16.8012.015.010.0022.523.05,,[1],,0.56,(2),DN400,DN3507,GB5018320046.8.84.0.8,,10m2.0m;10m,5m1.2104m3/h,10m;1.2104~4.0104m3/h,40m,1.2104m3/h,,,40m2(km)(104m3/h)(mm)(mm)329.51397DN4000.50248.78382DN4000.46246.00316DN3500.41326.59330DN3500.45二放空立管出口模拟1,GB501832004,(DNV)PHAST,,,2~520.2m/s()642009517.0m/s()9.51104m3/h,DN400,20m,50%23m,,,,[2],,150m/s,2,,PHAST,,669.51104m3/h,DN400,20m5m/s,40m,5.6kW/m2,,1min三结论,20m,40m9.51104m3/h,1,6.3kW/m2,PHAST5.6kW/m2,PHAST1,GB5018320042,APIRP521(:2008-11-19)65289齐建波等: