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水位自动调节器在于保证按给定水位和流量向渠道分水。渠道上设放水管,向灌溉系统放水0.3～0.5秒立米。放水管上下游水位差0.2～2米。流态可以是自由出流或淹没出流。渠内流态可以是均匀流或不定常的壅水情况。调节器靠水力作用,见示意图。其工作原理如下:在上游静水压力作用下,扇形门体3回绕轴4转动,带动与其刚性连接的拉杆2,使封口门1脱开,有一定流量泄入下游渠道。
Water level automatic regulator is to ensure that water by a given water level and flow to the channel. The channel is set on the drain pipe, water to the irrigation system 0.3 to 0.5 seconds cubic meters. Water pipe upstream and downstream water level difference of 0.2 to 2 meters. The flow regime can be free flow or submerged flow. Drainage flow can be uniform flow or unsteady water conditions. Regulator by hydraulic action, see diagram. Its working principle is as follows: Under the effect of the upstream hydrostatic pressure, the fan-shaped door body 3 rotates around the shaft 4 and drives the tie rod 2 rigidly connected with it, so that the sealing door 1 is disengaged and a certain flow is discharged into the downstream channel.