巴歇尔槽(又称巴氏计量槽)，是用于明渠流量测量的辅助设备。在液体流动过程中，非满管状态流动的水路称作明渠(openchannel)，明渠流量计的应用场所有城市供水引水渠、火电厂冷却水引水和排水渠、污水治理流入和排放渠、工矿企业废水排放以及水利工程和农业灌溉用渠道。流量刻度显示不锈钢巴歇尔槽，把明渠内流量的大小转成液位的高低。选配不锈钢流量标尺，液位、流量一目了然无需繁琐计算，提高工作效率，节省工程预算。不锈钢巴歇尔槽安装注意事项：1槽的中心线要与渠道的中心线重合,使水流进入巴歇尔槽不出现偏流。2槽通水后，水的流态要自由流。巴歇尔槽的淹没度要小于规定的临界淹没度。3槽的上游应有大于5倍渠道宽的平直段，使水流能平稳进入巴歇尔槽。即没有左右偏流，也没有渠道坡降形成的冲力。4槽安装在渠道上要牢固。与渠道侧壁、渠底连结要紧密，不能漏水。使水流全部流经巴歇尔槽的计量部位。巴歇尔槽的计量部位是槽内喉道段。巴歇尔槽安装的***关键点：必须保证巴歇尔槽下游有水位差，排放通畅，不会积水。注：巴歇尔槽支架处为水流上游。巴歇尔槽自由流流量公式：Q=CHn巴歇尔槽规格：(1~25号)水位高度：(0~2.13m)巴歇尔槽水位-流量公式类别序号喉道宽度b(m)流量公式Q=Chan(L/s)水位范围h(m)流量范围Q(L/s)临界淹没度%***小***大***小***大小型10.02560.4ha1.550.0150.210.095.40.520.051120.7ha1.550.0150.240.1813.20.530.076177.1ha1.550.030.330.7732.10.540.152381.2ha1.580.030.451.50111.00.650.228535.4ha1.530.030.602.52510.6标准型60.25561ha1.5130.030.603.02500.670.30679ha1.5210.030.753.54000.680.451038ha1.5370.030.754.56300.690.601403ha1.5480.050.7512.58500.6100.751772ha1.5570.060.7525.011000.6110.902147ha1.5650.060.7530.012500.6121.002397ha1.5690.060.8030.015000.7131.202904ha1.5770.060.8035.020000.7141.503668ha1.5860.060.8045.025000.7151.804440ha1.5930.080.8080.030000.7162.105222ha1.5990.080.8095.036000.7172.406004ha1.6050.080.80100.040000.7大型183.057463ha1.60.091.07160.082800.8193.668859ha1.60.091.37190.0146800.8204.5710960ha1.60.091.67230.0250400.8216.1014450ha1.60.091.83310.0379700.8227.6217940ha1.60.091.83380.0471600.8239.1421440ha1.60.091.83460.0563300.82412.1928430ha1.60.091.83600.0747000.82515.2435410ha1.60.091.83750.0930400.8)