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以800 m深井立式抢险排水系统为例,分析了深井排水系统管路正常运行时的所受载荷,并运用HARMMER水锤瞬态分析软件分析了系统管路在不同水锤防护方法下所受的动载荷;运用ANSYS有限元分析件,对排水管路进行静载分析及安全性评价,并分别对系统最上端和最下端管路在停泵水锤力作用下的疲劳寿命进行分析,估算出最上端和最下端管路可承受停泵水锤的次数;最后由分析结果得出最下端管路的疲劳寿命为最上端管路的12.9倍,提出了排水管路编号管理办法及上下排水管路交替的使用方法,有效地提高了排水管路的使用安全性。
Taking the 800 m deep vertical emergency rescue and drainage system as an example, the load of deep well drainage system during normal operation was analyzed. The HARMMER water hammer transient analysis software was used to analyze the system piping suffered under different water hammer protection methods The static load analysis and safety evaluation of the drainage pipeline were carried out by ANSYS finite element analysis software. The fatigue life of the uppermost and the lowermost pipeline of the system under the water hammer force of the stoppage pump was analyzed respectively, Out of the top and bottom of the pipeline can withstand the number of stop water hammer; Finally, the analysis results obtained the lowest end of the pipeline fatigue life of 12.9 times the top of the pipeline, the proposed drainage number and management approach and drainage The use of alternating pipe, effectively improve the safety of the drainage pipe.