千米立井排水系统停泵水锤数值模拟  

Numerical Simulation to the Pump-Off Water Hammer of the Drainage System in Kilometer Shaft

作　　者：孙宁[1] 孙振松[2] 

机构地区：[1]煤炭工业邯郸设计研究院,河北邯郸056031 [2]淄博矿业集团唐口煤矿

出　　处：《矿山机械》2006年第12期77-79,共3页Mining & Processing Equipment

摘　　要：针对唐口煤矿千米立井排水系统,对无阀管路、止回阀作用和缓闭阀作用三种工况的停泵水锤进行数值模拟。表明千米立井排水系统在无阀管路和止回阀作用时,突然停泵不会引起断流弥合水锤;但千米立井停泵时引起的连续水锤压力很大,二阶段缓闭阀能有效地降低水锤压力。In the kilometer shaft of TangKou coal mine, the paper respectively makes the numerical simulation to the pump-off water hammer of the drainage system whose pipeline without valve, with check valve and with slowly closing valve. The result shows that sudden pump-off could not cause the break flow and close water hammer in the drain- age system whose pipeline without valve or with check valve, but the pressure of the continual water hammer occurs due to the pump-off in kilometer shaft is great, the two-stage slowly closing valve could ef- fectively decreases the pressure of the water hammer.

关 键 词：主排水系统 停泵水锤 数值模拟 千米立井 排水高度 水锤压力 排水设备 排水管路 

分 类 号：TD744[矿业工程—矿井通风与安全]