高扬程大型浮船取水泵站水锤防护措施探讨

A Probe into Water Hammer Protection Measures of Large Floating Ship Pumping Station with the High Head

为探讨高扬程大型浮船取水泵站水锤防护措施,以云南省某单级摇臂式浮船泵站为例,对浮船泵站水锤防护措施进行数值模拟计算,提出了“泵后设置速闭止回阀+岸上设置空气罐+后段设置注微排气阀”的联合防护措施。速闭止回阀确保了泵组不倒转,空气罐解决了提水管压力震荡问题,注微排气阀有效保护负压段。该防护方案为前陡后缓复杂地形条件下浮船泵站的水锤防护设计提供参考和借鉴。

In order to explore the water hammer protection measures of large floating ship pumping station with high head,taking a singlestage rocker-arm floating ship pumping station in Yunnan Province as an example,this paper simulates the water hammer protection mea⁃sures numerically.Finally,the combined protection measures of setting fast closing check valve after pump+setting air tank on the bank+setting micro-injection exhaust valve in the back section are proposed.The quick closing check valve ensures that the pump group does not reverse,the air tank solves the pressure oscillation problem of the water pipe,and the micro-injection exhaust valve effectively protects the negative pressure section.This protection scheme provides a reference for the water hammer protection design of floating ship pumping station under the conditions of steep front and slow back complex terrain.