上海煤气
上海煤氣
상해매기
SHANGHAI GAS
2013年
5期
7-9
,共3页
周伟国%刘东京%王海%肖兵
週偉國%劉東京%王海%肖兵
주위국%류동경%왕해%초병
清管器%清管%燃气%管道%数学模型
清管器%清管%燃氣%管道%數學模型
청관기%청관%연기%관도%수학모형
pig%pipeline pigging%gas%pipeline%mathematical model
在燃气管道清通工作中,一般使用皮碗清管器或球形清管器清除管道内的各种杂质及积水。清管器在管道内运行,尤其是在通过弯头、三通等处时,由于管道摩擦阻力增大,非常容易发生卡堵现象,导致清通压力迅速增大,使管道清通效率及安全性降低。基于流体力学原理,提出了清管器卡堵简化数学模型,并分别模拟皮碗清管器及球形清管器在燃气管道中的卡堵过程。
在燃氣管道清通工作中,一般使用皮碗清管器或毬形清管器清除管道內的各種雜質及積水。清管器在管道內運行,尤其是在通過彎頭、三通等處時,由于管道摩抆阻力增大,非常容易髮生卡堵現象,導緻清通壓力迅速增大,使管道清通效率及安全性降低。基于流體力學原理,提齣瞭清管器卡堵簡化數學模型,併分彆模擬皮碗清管器及毬形清管器在燃氣管道中的卡堵過程。
재연기관도청통공작중,일반사용피완청관기혹구형청관기청제관도내적각충잡질급적수。청관기재관도내운행,우기시재통과만두、삼통등처시,유우관도마찰조력증대,비상용역발생잡도현상,도치청통압력신속증대,사관도청통효솔급안전성강저。기우류체역학원리,제출료청관기잡도간화수학모형,병분별모의피완청관기급구형청관기재연기관도중적잡도과정。
Cup pigs and pigging balls are generally used to clear away various impurities and water in gas pipeline during pigging operation. However, the pigs are commonly blocked when moving through the gas pipeline, especially elbows or tee fittings as a result of higher pipeline friction resistances, which lowers the effect and safety of pipeline pigging. Based on the principle of fluid mechanics, the paper introduces a simplified pig blocking mathematical model and the operation of simulating the blockage of the cup pigs and pigging balls in gas pipeline.