-华东成品油管道泄漏量及压降的计算(导师：董荣国 编写：一飞 荣 丁韬 吴进摘要：在十二五规划期间，我国又将建立多条成品油管道，这给我国成品油管道的开展带来了契机，同时，对成品油管道的平安运行也提出了更高的要求。特别是“11.22东黄复线输油管线泄漏爆炸事故的发生，引发了人们对于成品油管道泄漏这一平安问题的高度重视和深度思考。华东分公司，做为华东区最大的成品油物流中心，现有三条在运成品油管线浙管线、南管线、北管道，华东成品油管网已初具规模，为了更好的应对管道泄漏事故，保护国有资产平安，迎合公司倡导的“平安管道建立，本文主要对成品油管线泄漏量，以及泄漏所引起的漏点压降这一课题展开深入的研究。关键词：压力波 漏点压降 泄漏量1、华东管网压力波传播速度的分析1.1实际波速采集在实际生产过程中，通过各种工况发生变化或调节阀调节下载流量而产生相应管段的压力波，利用泄漏检测软件对管线各站进出站压力数据的高精度采集，查找对应的压力特征突变点，来测算总结压力波传递速度。1.1.1浙管线1柴油状态下：表1.1序号山站站间距km时间差s实际波速km/s19:07:019:07:4250.591411.2229:09:549:10:3550.591411.2239:27:499:28:3150.591421.2049:32:219:34:0350.591421.20序号站站间距km时间差s实际波速km/s112:58:5012:59:4770.245571.23213:00:1813:01:1570.245571.23313:02:0713:03:0470.245571.23413:04:0313:05:0070.245571.23序号站桐乡站间距km时间差s实际波速km/s14:13:194:12:3751.613421.2324:15:024:14:2051.613421.2334:17:294:16:4751.613421.2344:30:084:29:2651.613421.23序号桐乡站站间距km时间差s实际波速km/s14:14:194:14:5949.36401.2324:16:464:17:2649.36401.2334:29:254:30:0549.36401.2344:33:194:33:5949.36401.232汽油状态下：表1.2序号山站站间距km时间差s实际波速km/s120:12:2020:13:0750.591471.07220:12:4520:13:3250.591471.07320:13:4820:14:3550.591471.07420:13:3220:14:1850.591471.07序号站站间距km时间差s实际波速km/s14:59:264:58:2170.245651.0825:00:545:01:5970.245651.0835:02:435:03:4870.245651.0845:04:395:05:4470.245651.08序号站桐乡站间距km时间差s实际波速km/s123:26:4423:25:5651.613481.08223:26:5823:26:1051.613481.08323:30:4723:29:5951.613481.08423:31:1423:30:2651.613481.08序号桐乡站站间距km时间差s实际波速km/s121:20:2321:21:0949.36451.09221:22:0321:22:4949.36461.07321:49:0521:49:5149.36461.07422:00:0122:00:4749.36451.091.1.2南管线1柴油状态下表1.3序号站站间距km时间差s实际波速km/s19:37:229:38:3183.54691.2129:41:509:42:5983.54691.2139:44:399:45:4883.54691.2149:53:359:54:4483.54691.21序号站站间距km时间差s实际波速km/s122:32:2322:33:1562.59521.20222:38:5122:39:4362.59521.20322:41:4022:42:3162.59511.22422:51:3622:52:2762.59511.22序号站江阴站间距km时间差s实际波速km/s117:42:0617:43:1078.29641.22217:48:3417:49:3978.29651.20317:51:2317:52:2878.29651.20418:01:1918:02:2378.29641.22序号江阴站站间距km时间差s实际波速km/s117:19:3517:20:2865.17531.23217:23:0317:23:5665.17531.23317:30:5217:31:4565.17531.23417:36:4817:37:4165.17531.23序号站站间距km时间差s实际波速km/s12:42:072:43:1077.18631.2322:46:352:47:3877.18631.2332:50:242:51:2777.18631.2342:59:203:00:2377.18631.232汽油状态下表1.4序号站站间距km时间差s实际波速km/s116:07:2316:08:4183.54781.07216:21:5116:23:0983.54781.07316:44:4016:45:5883.54781.07416:53:3616:54:5483.54781.07序号站站间距km时间差s实际波速km/s115:18:4515:19:4462.59591.06215:33:1315:34:1162.59581.08315:56:0215:57:0162.59591.06416:04:5816:05:5662.59581.08序号站江阴站间距km时间差s实际波速km/s17:55:297:56:4278.29731.0728:09:578:11:1078.29731.0738:32:468:33:5978.29731.0748:41:428:42:5578.29731.07序号江阴站站间距km时间差s实际波速km/s17:47:387:48:3865.17601.0827:56:067:57:0665.17601.0838:16:158:17:1565.17601.0848:21:088:22:0865.17601.08序号站站间距km时间差s实际波速km/s17:20:457:21:5677.18711.0927:26:137:27:2477.18711.0937:41:227:42:3477.18721.0747:56:157:57:2777.18721.07根据华东管网浙和南管道的实际数据，代入压力波速理论公式进展计算，可以得到浙管线与南管线中不同管径管道的理论波速数据。式中： a瞬变压力波速，m/s；k液体体积弹性系数，Pa；液体密度，kg/m3；E管材弹性模量，Pa；D管径，m；e管壁厚度，m；c1管道约束系数；g重力加速度，m/s2。406mm管径管道中输送汽油时的压力波速度：20时，汽油K=9.16108 Pa，=740kg/m，D=406.67.17.1/1000=0.3922 m，E钢=206.9109 Pa，e =0.0071 m，c1=10.32。波速a约为1006.23 m/s。输送柴油时的压力波速度：20时，柴油K=12108 Pa，=850kg/m，D=406.67.17.1/1000=0.3922 m，E钢=206.9109 Pa，e =0.0071 m，c1=10.32。波速a约为1045.50 m/s。323mm管径管道中输送汽油时的压力波速度：20时，汽油K=9.16108 Pa，=740kg/m，D=323.96.46.4/1000=0.3111 m，E钢=206.9109 Pa，e =0.0064 m，c1 =10.32。波速a约为1017.41 m/s。输送柴油时的压力波速度：20时，柴油K=12108 Pa，=850kg/m，D=323.96.46.4/1000=0.3111 m，E钢=206.9109 Pa，e =0.0064 m，c1 =10.32。波速a约为1059.96 m/s。说明：以上计算结果仅为根据理论公式算出的理论值，华东管网山至段、至江阴均为406mm管径的管道，至、至，江阴至则为323mm管径的管道，由于温度、油品密度、体积弹性系数等均为变化数据，因而这里选取的数据均为标准状态下理论数据值。在实际生产过程中，通过各种工况发生变化或调节阀调节下载流量而产生相应管段的压力波，利用泄漏检测软件对管线各站进出站压力数据的高精度采集，查找对应的压力特征突变