Multi-stage circulating water utilization power generation system

Abstract

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.

Description

Technical Field

[0001] The invention belongs to the technical field of hydropower generation, and in particular relates to a multi-stage circulating water power generation system. Background Art

[0002] With the continued growth of global energy demand and increasing environmental pressure, the development of green and renewable energy has become a key priority for countries around the world. Hydropower, as a clean, efficient, and renewable energy source, has long occupied a crucial position in the global energy mix. However, traditional hydropower generation typically relies on large reservoirs and large headfalls, resulting in significant investment and long construction cycles, while also potentially having adverse impacts on the ecological environment.

[0003] The siphon principle, a natural phenomenon that relies on atmospheric pressure and gravity to achieve the automatic flow of liquids, has been widely used in agricultural irrigation and water circulation. Applying the siphon principle to hydropower systems attempts to reuse water and create height differences without relying on external energy input, offering new insights into the development of small, distributed clean energy systems. Summary of the Invention

[0004] To overcome the above technical problems, the present invention provides a multi-stage circulating water power generation system, which uses the siphon principle to divert water from a low position to a high position, forming a controllable water level difference, and then drives the turbine to convert energy to achieve stable power generation. The exploration of this technology is expected to break the terrain and level difference limitations of traditional hydropower generation, and provide an environmentally friendly and efficient energy solution for remote mountainous areas, rural areas and even urban rainwater utilization systems.

[0005] The present invention adopts the following technical solutions: A multi-stage circulating water power generation system includes multiple water tanks of decreasing height. Multiple siphon devices are installed between adjacent water tanks to transfer water from the lower water tank to the higher water tank. The bottom of the highest water tank is connected to the lowest water tank through a return pipe. The return pipe is equipped with a turbine, which drives a connected generator. The siphon device includes a water tank located above the high-level water tank. The top of the water tank is connected to a suction pipe, and the bottom is connected to a drainage pipe. The inlet end of the suction pipe is located in the low-level water tank, and the drainage pipe is vertically downward and the outlet is located in the high-level water tank.

[0006] Preferably, the water tank is connected to a water injection pipe, the water injection pipe is provided with a water injection valve, the water injection pipe is connected to a water pump, the water pump is installed in a high-level water tank, and an exhaust hole is opened on the top of the water tank, and the exhaust hole is provided with an exhaust valve.

[0007] Preferably, a total of four water pools and three layers of siphon devices are provided.

[0008] Preferably, the height difference of the liquid levels in adjacent water pools is equal, and the height of the highest water pool is 10m.

[0009] Preferably, water purification filter material is placed in the pool through a mesh frame.

[0010] Preferably, the drain pipe is provided with a drain valve.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. Green and environmentally friendly, zero carbon emissions No fossil fuels need to be consumed during the operation of the device, and no waste gas or wastewater is discharged during the power generation process.

[0012] 2. Simple structure and low cost Compared with traditional hydropower stations, this device does not require high dams or large reservoirs. It can achieve energy conversion only through a combination of siphons and turbines, reducing construction and maintenance costs.

[0013] 3. Widely applicable to low-rise or plain areas The innovative use of siphon structures to artificially create water level differences breaks through the traditional hydropower's reliance on natural terrain differences and has wider adaptability and deployment flexibility.

[0014] 4. Energy recycling to improve water resource efficiency It can be combined with the water circulation system to realize the secondary utilization of rainwater, river water, drainage, etc., generate electricity while ensuring water supply, and improve the utilization rate of water resources.

[0015] 5. Easy to modularize and suitable for distributed deployment The device can be assembled and expanded as needed, and is particularly suitable for use in homes, agriculture, or areas far from the power grid, and has good prospects for application and promotion.

[0016] 6. Has exploratory scientific research value Combining the siphon principle with hydropower generation has exploratory and innovative significance in terms of theory and engineering technology, and is expected to lead a new direction in the development of small-scale hydropower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of a siphon device.

[0018] Description of reference numerals: 1. Water pool; 2. Siphon device; 21. Water storage tank; 22. Suction pipe; 23. Drain pipe; 24. Exhaust valve; 25. Water filling valve; 26. Water filling pipe; 27. Water pump; 28. Drain valve; 3. Return pipe; 4. Turbine; 5. Generator. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings. The same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Unless otherwise specified, the raw materials and equipment used are commercially available or commonly used in the art. The methods in the embodiments, unless otherwise specified, are conventional methods in the art. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0020] See also Figure 1 A multi-stage circulating water power generation system includes four water pools 1 with decreasing heights. The liquid level height difference between adjacent water pools 1 is equal. The height of the highest water pool 1 is 10m. Multiple sets of siphon devices 2 are arranged between adjacent water pools 1 to transport water from the low-level water pool 1 to the high-level water pool 1. Since the water pool 1 has four layers, the siphon device 2 has three layers. The bottom of the highest water pool 1 is connected to the lowest water pool 1 through a return pipe 3. The return pipe 3 is provided with a turbine 4, and the turbine 4 drives the generator 5; the siphon device 2 includes a water tank 21 located above the high-level water pool 1, the top of the water tank 21 is connected to a water suction pipe 22, and the bottom is connected to a drainage pipe 23. The inlet end of the water suction pipe 22 is located in the low-level water pool 1, the drainage pipe 23 is vertically downward and the outlet is located in the high-level water pool 1, and the drainage pipe 23 is provided with a drainage valve 28.

[0021] In order to facilitate the start-up and adjustment of the siphon device 2, the water tank 21 is connected to a water injection pipe 26, the water injection pipe 26 is provided with a water injection valve 25, the water injection pipe 26 is connected to a water pump 27, and the water pump 27 is installed in the high-level water pool 1. An exhaust hole is opened at the top of the water tank 21, and the exhaust hole is provided with an exhaust valve 24.

[0022] In order to keep the water clean, water purification filter materials are placed in the pool 1 through a mesh frame.

[0023] The multi-stage circulating water power generation system has the following working process: Close the drain valve 28 and open the water filling valve 25 and the water pump 27. Water is quickly injected into the water tank 21 through the water pump 27 and the water filling pipe 26, and the air in the tank is discharged from the opened exhaust valve 24. After a certain amount of water is injected into the tank, close the water filling valve 25 and the exhaust valve 24, and the siphon device 2 starts to work. Due to the gravity of the water in the tank, the water in the tank falls from the drain pipe 23 to the high-level water tank 1, thereby guiding the water in the low-level water tank 1 to the high-level water tank 1, realizing step-by-step upward water transportation; the water pressure in the highest water tank 1 is the largest, and the water inside it returns to the lowest water tank 1 from the return pipe 3. During the reflux process, the turbine 4 drives the generator 5 to generate electricity.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the above embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A multi-stage circulating water power generation system, characterized in that: It includes multiple water tanks of decreasing height. Multiple siphon devices are set between adjacent water tanks to transfer water from the lower water tank to the higher water tank. The bottom of the highest water tank is connected to the lowest water tank through a return pipe. The return pipe is equipped with a turbine, which drives a generator. The siphon device includes a water tank located above the high-level water tank. The top of the water tank is connected to a suction pipe, and the bottom is connected to a drainage pipe. The inlet end of the suction pipe is located in the low-level water tank, and the drainage pipe is vertically downward and the outlet is located in the high-level water tank.

2. The multi-stage circulating water power generation system according to claim 1 is characterized in that: The water storage tank is connected with a water injection pipe, the water injection pipe is provided with a water injection valve, the water injection pipe is connected with a water pump, the water pump is installed in a high-level water pool, and an exhaust hole is opened on the top of the water storage tank, and the exhaust hole is provided with an exhaust valve.

3. The multi-stage circulating water power generation system according to claim 1 is characterized in that: There are four levels of water pools and three layers of siphon devices.

4. The multi-stage circulating water power generation system according to claim 3 is characterized in that: The height difference of the liquid levels in adjacent water pools is equal, and the height of the highest water pool is 10m.

5. The multi-stage circulating water power generation system according to claim 1 is characterized in that: Water purification filter materials are placed in the pool through a mesh frame.

6. The multi-stage circulating water power generation system according to claim 1 is characterized in that: A drain valve is installed on the drain pipe.

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