A siphon device for replacing underground reservoir water with floodwater and its operation method

摘要

The present invention discloses a device and a method for replacing underground reservoir water with floodwater via siphon , a water collecting pool is provided at the 5 upstream side of the foot of the reservoir dam, an apron is provided at the downstream side of the foot of the dam, a row of siphons are installed on the dam, and all the siphons are formed by connecting an inlet pipe, a hump pipe, a drainage device, and an outlet pipe from the upstream to the downstream. When the upstream water level is higher than the downstream water level, a control cabinet starts a water storage tank and 10 a water pump to deliver water to the drainage device, the drainage device causes the siphon for siphonic water discharge. The device utilizes floodwater resources to replace water for the reservoir in flood seasons, and is equipped with a negative pressure sensor and a water outlet sensor for intelligent control on the siphon. The device has the characteristics of safety, reliability, simple structure, all—weather siphonic water 15 replacing, large discharge flow, low energy consumption, easy operation, and intelligent control, etc., and is an advanced water conservancy and environmental protection device.