长江科学院院报 ›› 2024, Vol. 41 ›› Issue (10): 86-93.DOI: 10.11988/ckyyb.20231434

• 水力学 • 上一篇    下一篇

阻断水锤传播的调压塔水力特性及其应用

后小霞1,2(), 徐晓东3, 石韬4, 任坤杰1,2, 辛福选3, 杨青远1,2, 韩松林1,2()   

  1. 1 长江科学院 水力学研究所,武汉 430010
    2 长江科学院 水利部长江中下游河湖治理与防洪重点实验室,武汉 430010
    3 内蒙古引绰济辽供水有限责任公司,内蒙古 乌兰浩特 137400
    4 内蒙古自治区水利水电勘测设计院,呼和浩特 010020
  • 收稿日期:2023-12-28 修回日期:2024-04-17 出版日期:2024-10-01 发布日期:2024-10-25
  • 通讯作者: 韩松林(1986-),男,河南林州人,高级工程师,博士,研究方向为水工水力学和计算水力学。E-mail:slhan@hotmail.com
  • 作者简介:

    后小霞(1991-),女,甘肃渭源人,工程师,博士,研究方向为引调水工程过渡过程。E-mail:

  • 基金资助:
    中央级公益性科研院所基本科研业务费项目(CKSF2023317+SL)

Hydraulic Characteristics and Application of Cylindrical Surge Tower for Blocking Water Hammer Propagation

HOU Xiao-xia1,2(), XU Xiao-dong3, SHI Tao4, REN Kun-jie1,2, XIN Fu-xuan3, YANG Qing-yuan1,2, HAN Song-lin1,2()   

  1. 1 Hydraulics Department, Changjiang River Scientific Research Institute, Wuhan 430010, China
    2 Key Laboratory of Ministry of Water Resources on River & Lake Regulation and Flood Control in Middle and Lower Reaches of Yangtze River, Changjiang River Scientific Research Institute,Wuhan 430010, China
    3 Inner Mongolia Chaoer-Liaohe River Diversion Water Supply Co., Ltd., Ulanhot 137400, China
    4 Inner Mongolia Water Conservancy and Hydropower Survey and Design Institute, Hohhot 010020, China
  • Received:2023-12-28 Revised:2024-04-17 Published:2024-10-01 Online:2024-10-25

摘要:

安全可控的水锤压力是保障长距离有压输水工程稳定运行的必要条件,然而对于超长有压输水系统,还需要重点关注局部爆管等极端事故产生的超标水锤压强,其在全线蔓延导致整个输水系统瘫痪,可能引发次生危害。为解决极端水锤压力在整个输水系统传播的问题,首先提出一种阻断水锤传播的圆筒式溢流调压塔结构,通过将调压塔进水管竖直向上深入调压塔内部,形成圆筒式溢流调压塔,利用调压塔结构将进出水管道有效分割,以此阻断水锤的传播。随后通过模型试验和数值模拟方法分析了阻断式调压塔的水力特性,发现调压塔内流态均匀,溢流水体能在调压塔内充分消能后进入下游管线。最后将此调压塔应用于引绰济辽有压管线中,发现当管线出现局部爆管事故时,此调压塔能有效阻断负水锤的传播,避免水锤在全线蔓延,缩小事故影响范围。研究成果可为超长距离输水系统的水锤防护措施研究提供借鉴依据。

关键词: 超长有压输水系统, 过渡过程, 水锤防护, 阻断式调压塔, 水力特性

Abstract:

Safe and controllable water hammer pressure is a necessary condition to ensure the stable operation of long pressurized piping system. However, in ultra-long pressurized pipeline system, extreme accidents such as local pipe bursts may paralyze the entire system or lead to secondary disasters due to the widespread propagation of water hammer pressure throughout the entire pipeline.To address this issue, we introduce a cylindrical overflow surge tower designed to block water hammer propagation. The surge tower features a vertical inlet pipe, which effectively segments the pipelines and prevents water hammer from spreading. We analyzed the hydraulic characteristics of this surge tower using both model tests and numerical simulations. Our findings indicate that the flow patterns within the tower are uniform, and the overflow water dissipates sufficient energy before entering the downstream pipeline. Finally, we describe the application of this surge tower to the Chaoer River to Liaohe River Diversion Project. Results demonstrate that the surge tower effectively blocks the propagation of water hammer in case of local pipe bursts, thereby mitigating the negative impact of water hammer on the entire pipeline system. The findings offer valuable insights into protection strategies against water hammer for ultra-long pressurized piping systems.

Key words: ultra-long pressurized piping system, transient process, water hammer protection, blocking-up surge tower, hydraulic characteristics

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