长距离大管径跨海供水管道水锤防护设计  

Design of Water Hammer Protection for Long Distance and Large Diameter Cross‑sea Water Supply Pipeline

作　　者：寇殿良 刘存莉 王学攀 KOU Dian‑liang;LIU Cun‑li;WANG Xue‑pan(Guangxi Communications Design Group Co.Ltd.,Nanning 530029,China;Guangxi Transportation Science and Technology Group Co.Ltd.,Nanning 530007,China;BENSV Valve Stock Co.Ltd.,Tianjin 300350,China)

机构地区：[1]广西交通设计集团有限公司,广西南宁530029 [2]广西交科集团有限公司,广西南宁530007 [3]博纳斯威阀门股份有限公司,天津300350

出　　处：《中国给水排水》2023年第22期84-88,共5页China Water & Wastewater

摘　　要：目前针对长距离跨海供水项目水锤防护的研究较少,由于跨海段管道设置水锤防护措施较难,因此水锤防护主要集中在陆地段管道,实施范围有限,水锤防护难度较大。某沿海企业用水量为20×10^(4)m^(3)/d,通过提升泵站从水库向企业供水,采用D1600 mm钢管单管敷设,管线全长约36.5 km,其中约24.8 km埋设在海底。借助Bentley Hammer软件,针对长距离“凹”字状跨海管道布置模型,分析了该模型的特点,并在停泵水锤工况下分析了水锤波的传递,进行了两阶段关阀水锤防护、设置单向调压塔和空气阀等水锤联合防护研究。针对“凹”字状管道模型跨海段后的陆地段管道负压大、水头线低等特点,提出加深该段管道埋深、放缓管道坡度的措施,并进行了经济技术比选。There are hitherto few studies on water hammer protection for long distance cross‑sea water supply projects.Because it is difficult to install water hammer protection measures in cross‑sea pipelines,the protection measures are mainly installed in the pipelines on land with limited implementation area,which also increases the difficulty to carry out water hammer protection.The water consumption of a coastal enterprise is 20×10^(4)m^(3)/d.The water is supplied to the enterprise from a reservoir through a lifting pump station.The pipeline is laid by single D1600 mm steel pipe with a total length of about 36.5 km,of which approximately 24.8 km is buried on the seabed.The characteristics of the layout of the“concave”long distance cross‑sea pipeline were analyzed via Bentley Hammer software,as well as the water hammer wave transmission under the water hammer condition caused by the pump stop,and the effects of combined measures such as two‑stage valve closing,setting of one‑way surge tower and air valve on the protection of water hammer were investigated.In response to the characteristics of high negative pressure and low water head line in the land section of the“concave”shaped pipeline model after crossing the sea,measures were proposed to deepen the burial depth of the pipeline in this section and slow down the slope of the pipeline,and economic and technological comparisons were conducted.

关 键 词：水锤 供水工程 Bentley Hammer软件 

分 类 号：TU991[建筑科学—市政工程]