摘要
对使用高压冲洗机冲洗排水管道系统时系统的压力波动进行了研究,探究了喷头不同伸入距离和冲洗方式对系统压力波动的影响。结果表明:冲洗喷头引起系统最大负压的位置是相对横支管上0.5 m处;在DN110普通单立管系统中固定冲洗方式所产生的系统压力先突破-400 Pa,而DN110特殊单立管和DN75普通单立管系统则是移动冲洗方式所产生的系统压力先突破-400 Pa。
The pressure fluctuation in the system when using high-pressure washing machine to flush drainage system was studied to explore the influence of different extending distances and flushing modes of the flushing nozzle on the pressure fluctuation in the system. The results showed that the posi- tion of the maximum negative pressure caused by the flushing nozzle is 0.5 m on the relatively horizontal branch. The system pressure generated by fixed flushing mode in DN110 common single riser system first broke -400 Pa, while the system pressure generated by mobile flushing mode in DNll0 special single riser system and DN75 common single riser system first broke -400 Pa.
出处
《中国给水排水》
CAS
CSCD
北大核心
2016年第15期150-154,共5页
China Water & Wastewater
基金
国家水体污染控制与治理科技重大专项(2014ZX07406002)
关键词
高压冲洗
喷头
排水系统
伸入距离
high-pressure flushing
nozzle
drainage system
extending distance
