多种流量计在隧洞排水中的应用  

Application of Various Flow Meters in Tunnel Drainage

作　　者：陈文坤 林军 罗小鸣 刘斐 CHEN Wen-kun;LIN Jun;LUO Xiao-ming;LIU Fei(Zhaotong Investigation,Design&Research Institute of Water Conservancy&Hydropower,Zhaotong 657000,China;POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]昭通市水利水电勘测设计研究院,云南昭通657000 [2]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2023年第2期229-232,共4页Yunnan Water Power

摘　　要：某标段施工多条隧洞,且要求每条隧洞排水单独量测,前期采用“接管式”智能电磁流量计、“外夹式”超声波流量计、传统“三角”量水围堰监控量测隧洞排水量,均未满足相关要求,对排水计量造成较大影响。后通过对传统“三角(或矩形)”量水围堰配电感传感器及巴歇尔槽配明渠流量计方案的比选,最终选用后者,目前已成功运行1+a,量测结果获得参建各方一致认可,同时巴歇尔槽配流量计量测隧洞排水已在滇中引水工程多个标段推广应用。Several tunnels are constructed in a certain section and the drainage of each tunnel is required to be measured separately. In the early stage, the tunnel drainage was monitored and measured by using intelligent electromagnetic flowmeter of connection type, ultrasonic flowmeter of external clip type and traditional water measuring cofferdam of triangle type, which did not meet the relevant requirements and greatly affected the drainage measurement. The latter is selected by comparing the distribution inductance sensor of traditional triangular(or rectangular) water measuring cofferdam with open channel flowmeter of Bachel channel. At present,it has been operated successfully for more than one year and the measurement results have been unanimously approved by all participants. At the same time, the measurement of tunnel drainage by Bachel channel with flow meter has been widely used in several water diversion projects in Yunnan.

关 键 词：电磁流量计 超声波流量计 量水围堰 巴歇尔槽 明渠流量计 

分 类 号：TV672.1[水利工程—水利水电工程] U456.32[建筑科学—桥梁与隧道工程]