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长距离、高扬程管道输水工程,受地形的影响呈现出复杂的空间布置特点。启泵、事故停泵、正常输水工况等引起的水流流速变化产生的气体释放、液体汽化、水柱分离及断流弥合水锤等现象会使输水系统无法正常运行。因此,合理地分析水锤发生的原因,调整输水系统的空间布置形式,采用相应的水锤防护设施,是优化工程设计、确保工程安全运行的关键。
Long-distance, high-lift pipeline project, affected by the terrain shows a complex spatial layout characteristics. The phenomena of gas release, liquid vaporization, separation of water column and breaking of water hammer caused by the change of water flow rate caused by the start pump, accident stop pump and normal water conveyance condition will make the water delivery system unable to operate normally. Therefore, it is the key to optimize the engineering design and ensure the safe operation of the project by reasonably analyzing the causes of the water hammer, adjusting the spatial arrangement of the water delivery system and adopting the corresponding water hammer protection facilities.