Ecological and environmental protection sewage treatment equipment Basher tank

Regarding the selection of material for the Bacher groove, choose the material to be used based on the measuring medium, such as whether the medium to be measured contains corrosion? For those with strong corrosiveness, it is necessary to choose a fiberglass material for the Bacher groove. Compared to stainless steel Bacher grooves, fiberglass material for Bacher grooves has stronger corrosion resistance! But if installed outdoors, it is easily weathered by wind and sun, which will reduce its service life.

Ecological and environmental protection sewage treatment equipment Basher tank

BaThe structure of the Scheer groove,From upstreamContraction segmentShort straight throat and downstreamDiffusion segmentthree partsComposed into parts. The groove bottom of the contraction section tilts downstream, while the inclination direction of the groove bottom of the diffusion section is opposite to that of the throat groove bottom.

Ecological and environmental protection sewage treatment equipment Basher tankThe use of

The larger the flow in the open channel, the higher the liquid level; The smaller the flow rate, the lower the liquid level. For general channels, there is no definite correspondence between liquid level and flow rate. Because the same water depth and flow rate are also related to the cross-sectional area, slope, and roughness of the channel. Installing a measuring weir groove in the channel, the correspondence between the upstream water level and flow rate of the channel mainly depends on the geometric dimensions of the weir groove, as the gap of the weir or the contraction of the groove is smaller than the cross-sectional area of the channel. The same measuring weir tank is placed on different channels, and the same liquid level corresponds to the same flow rate. The measuring weir channel converts the flow into liquid level. By measuring the flow of water in the measuring weir troughLiquid level, and then reverse calculate the flow rate based on the corresponding water level flow relationship of the weir tank.

If the flow rate in the measuring tank is high,throatThe fluctuation of the middle water level is also significant, making it difficult to directly measure the water level in the tank. Therefore, after setting up observation wells on the groove wall, safety measurements are takenwater gaugeThe bottom of the well is 20-25cm lower than the groove threshold, and a flat metal tube can be used for logging and measuring water tanksConcrete pipeConnection: The centerline of the pipe should be 3cm above the bottom of the groove. The upstream water gauge should be located upstream of the throat at a distance of (2/3) from the beginning of the throat, and the downstream water gauge should be located 5cm above the end of the throatAt the groove wall. The zero point of the upstream and downstream water gauges should be level with the height of the groove bottom, and there should be no water leakage in the observation well. The well should be regularly cleaned of sediment and covered with a lid to prevent debris from entering.