The invention belongs to the technical field of hydroelectric power generation, and discloses a multi-stage circulating water utilization
power generation system which comprises
multiple stages of
water tanks with gradually decreased heights, a plurality of
siphon devices are arranged between adjacent
water tanks to convey water from a low-position water tank to a high-position water tank, the bottom of the highest-position water tank is connected with the lowest-position water tank through a return
pipe, and the return
pipe is provided with a
turbine. The
turbine is in driving connection with the generator; the
siphon device comprises a
water storage tank located above the high-level
pool, the top of the
water storage tank is connected with a water suction
pipe, the bottom of the
water storage tank is connected with a drainage pipe, the inlet end of the water suction pipe is located in the low-level
pool, and the drainage pipe is vertically downward and has an outlet located in the high-level
pool.
Fossil fuel does not need to be consumed in the operation process of the device, no
waste gas or waste water is discharged, and the
energy policy requirement of
sustainable development is met; compared with a traditional
hydropower station, the device does not need a high dam or a large reservoir, and the construction and maintenance cost is reduced; dependence of traditional
hydropower on natural
terrain fall is broken through, and wider adaptability and deployment flexibility are achieved.