摘要
针对雨水口及其他跌落水流的流量测量问题,提出一种基于动量变化率而测定来流冲击力的计量流量的方法。具体步骤是通过力传感装置和称重变送器将下落水流冲击力转化为电压信号,依据率定实验过程中电压值的变化,最终换算成雨水口径流流量。结果表明,应用该计量方法进行雨水口流量测量,其获得的流量精度较高,适应雨水口的流量变化,是一种计量雨水口流量的有效方法。
It is difficult to monitor the storm water runoff flow and other nappe flow with the exsiting measuring methods. To solve this problem,a new measuring method for storm water inlet runoff quantity is brought forward,which is based on the rate of change of momentum to the measure flow impact. Through force sensing device and weight transmitter,falling water flow impact pressure is converted to voltage signal. The change of voltage value in the process of calibration experiments,eventually is converted to storm water inlet runoff quantity. The result shows that this kind of measuring method can achieve high flow precision and adapt to the change of storm water inlet runoff quantity,which is an effective approach of measuring storm water inlet runoff quantity.
出处
《环境工程》
CAS
CSCD
北大核心
2016年第12期12-16,22,共6页
Environmental Engineering
基金
国家水体污染控制与治理科技重大专项(2010ZX07320-002
2010ZX07320-003)
北京建筑大学"城乡建设与管理"产学研联合研究生培养基地项目
关键词
雨水口
流量计量
动量
runoff inlet
flow measurement
momentum
