Hydroelectric power generation method, structure and device based on water hammer effect circulating backwater

Abstract

The invention relates to the technical field of hydroelectric generation, in particular to a hydroelectric generation circulating water return structure based on a water hammer effect, which is sequentially provided with an upper water tank, a middle water tank and a lower water tank, and the middle water tank receives backflow water after hydroelectric generation and supplies water to a potential energy pump arranged in the lower water tank through a water inlet pipe. The potential energy pump lifts part of water back to the upper water pool through the water lifting pipe under the action of the water hammer, and the water which is not lifted flows back to the lower water pool and participates in the next circulation, so that external water pumping energy consumption is reduced, and cyclic utilization of water potential energy is achieved.

Description

Technical Field

[0001] This invention relates to the field of hydropower technology, and in particular to a hydropower circulating water return structure, a hydropower generation device, and a hydropower generation method. Background Technology

[0002] Existing pumped-storage hydroelectric power plants typically employ a method of "pumping water during periods of low electricity prices and releasing water to generate electricity during periods of high electricity prices" to shift energy. While this can balance the grid load, the pumping process relies on large motors and pumps, resulting in high energy consumption and operating costs. Furthermore, relying solely on electricity to pump water back to the upper reservoir limits overall energy utilization efficiency. Especially in scenarios with limited terrain, small headroom, or large backflow volumes, even higher electricity is required to pump large volumes of water back to the upper reservoir, leading to lower overall system efficiency and hindering the construction of energy-efficient hydroelectric power generation facilities.

[0003] Therefore, there is an urgent need to design a new type of hydropower recirculation design that can solve one or more of the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a water-hammer effect-based hydropower generation circulating water return structure, a water-hammer effect-based hydropower generation device, and a water-hammer effect-based hydropower generation method to address the shortcomings of existing technologies. The aim is to provide a technical solution that can autonomously lift the water returned from power generation to the upper water tank without consuming additional external energy, thereby reducing the proportion of water that needs to be pumped back by electricity and significantly reducing the overall cost of hydropower generation.

[0005] This invention achieves the above objective through the following technical solution: a hydroelectric power generation circulating water return structure based on the water hammer effect, comprising: upper pool; The middle water tank is located below the upper water tank and is used to receive the return water discharged from the upper water tank through the hydroelectric power generation mechanism. A lower water tank is located below the middle water tank; A potential energy pump, installed in the lower water tank, is used to generate a water hammer effect using the water flow from the middle water tank. The water inlet pipe has one end connected to the middle water tank and the other end connected to the water inlet of the potential energy pump, and is used to introduce water from the middle water tank into the potential energy pump. A water lifting pipe, one end of which is connected to the outlet of the potential energy pump and the other end of which is connected to the upper water tank, is used to transport water lifted by the potential energy pump to the upper water tank. The elevation difference between the middle water tank and the lower water tank, as well as the size parameters of the inlet pipe and the lifting pipe, are configured to enable the potential energy pump to generate a water hammer effect sufficient to lift water back to the upper water tank.

[0006] Furthermore, the height difference between the intermediate water tank and the lower water tank is 5m to 20m; The diameter of the water inlet pipe is 300mm to 500mm; The length of the inlet pipe is 20m to 50m; The diameter of the water lifting pipe is 100mm to 350mm; The water lifting efficiency of the potential energy pump is 50% to 80%.

[0007] Furthermore, the drainage pool is a trough-type or box-type structure; A water pump is installed in the lower water tank. The inlet of the water pump is connected to the lower water tank, and the outlet is connected to the upper water tank. It is used to pump the part of the water that is not lifted to the upper water tank by the potential energy pump back to the upper water tank so that the return water volume of the whole system meets the water supply needs of the hydroelectric power generation mechanism. A hydroelectric power generation mechanism is provided between the upper water tank and the middle water tank, and the outlet end of the hydroelectric power generation mechanism is connected to the middle water tank.

[0008] A hydroelectric power generation device based on water hammer effect and circulating water return includes: upper pool; A hydroelectric power generation mechanism is located downstream of the upper water tank and is used to generate electricity using the potential energy of the water in the upper water tank. The middle water tank is used to receive the return water after the hydroelectric power generation mechanism generates electricity; sink; sink A potential energy pump, installed in the lower water tank, is used to generate a water hammer effect by utilizing the water flow from the middle water tank and to lift the water. The water inlet pipe has one end connected to the middle water tank and the other end connected to the water inlet of the potential energy pump. A water lifting pipe is connected to the lower water tank and the upper water tank respectively, and is used to transport the water lifted by the potential energy pump to the upper water tank. The potential energy pump is used to lift the water entering the potential energy pump to a height higher than the middle water tank and return it to the upper water tank without external energy input.

[0009] Furthermore, water that is not lifted to the upper water tank by the potential energy pump flows back to the lower water tank through the water lifting pipe, and together with the water flow from the middle water tank, forms the working cycle of the potential energy pump.

[0010] Furthermore, a water pump is installed in the lower water tank. The inlet of the water pump is connected to the lower water tank, and the outlet is connected to the upper water tank. The pump is used to pump back the portion of water that was not lifted to the upper water tank by the potential energy pump, so that the return water volume of the entire system meets the water supply needs of the hydroelectric power generation mechanism.

[0011] Furthermore, the potential energy pump adopts a water hammer pump structure, which includes a pressure tank (also known as an air chamber). The water hammer effect is generated through the water hammer pump.

[0012] A hydroelectric power generation method based on water hammer effect and circulating water includes the following steps: Power generation steps: Water from the upper pool is introduced into the hydroelectric power generation mechanism, and the potential energy of the water is used to generate electricity, resulting in the return water after power generation; Recirculation step: The recirculated water obtained from the power generation step is transported to a greywater tank for storage; Water hammer driving steps: Water from the middle water tank is introduced into the potential energy pump located in the lower water tank through the inlet pipe, and the water hammer effect is triggered by the inertia of the water flow. Water lifting step: Using the water hammer effect generated by the water hammer drive step, a portion of the water is lifted through the water lifting pipe and transported to the upper water tank.

[0013] The circulation process involves returning unlifted water to the lower water tank, where it combines with water from the middle water tank to form a continuous working cycle for the potential energy pump, thereby achieving water circulation lifting and power generation.

[0014] Furthermore, in the cyclical process, approximately 30% of the return water that is not pumped to the upper water tank by the potential energy pump needs to be pumped by electricity, while the remaining water volume is naturally lifted through the water hammer effect.

[0015] Furthermore, the cyclical step is as follows: using a water pump to pump the return water that has not been lifted to the upper water tank by the potential energy pump back to the upper water tank, so as to maintain the water replenishment of the upper water tank.

[0016] The beneficial effects of this invention are: The proposed circulating water structure, through the sequential arrangement of an upper, middle, and lower water tank, allows the return water to flow sequentially to a lower elevation area due to natural drop. The middle water tank receives the return water after power generation, providing a stable water source for the potential energy pump and creating the initial head required for the water hammer effect through its height difference with the lower water tank. Based on this, the water flow between the middle and lower water tanks is introduced through an inlet pipe to the potential energy pump located in the lower water tank. The potential energy pump generates a water hammer effect, creating sufficient inertia and pressure fluctuations within the pipe, thereby driving the potential energy pump to achieve natural water lifting.

[0017] The outlet of the potential energy pump is further connected to the upper water tank via a lift pipe, completing the process of returning water to the upper water tank. This structure utilizes the internal circulation of water potential energy to generate lifting power, allowing the return water after power generation to be lifted back to the upper water tank without relying on external electricity, achieving true natural water circulation. Because the system employs a multi-tank, tiered arrangement combined with the water hammer effect, it significantly reduces the dependence on electricity in traditional pumping processes, improves the efficiency of water potential energy recycling, and enhances the overall economic efficiency and environmental friendliness of the power generation system.

[0018] Overall, this structure, through a reasonable arrangement of water tank levels and pipeline connections, enables the potential energy pump to operate continuously under stable head conditions, thereby effectively solving the problem of relying on a large amount of electricity to pump back water in traditional hydropower generation. It achieves the technical effects of natural lifting of back water, reduced system energy consumption, and improved operating efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one structure of the present invention; Figure 2 This is another structural schematic diagram of the present invention, and a partial enlarged structural schematic diagram.

[0020] The reference numerals in the figures include: 1—Upper water tank, 2—Middle water tank, 3—Lower water tank, 4—Potential energy pump, 5—Inlet pipe, 6—Water lifting pipe, 7—Power generation water pipe, 8—Hydropower generation mechanism; 41—Pressure tank; 81—Water turbine, 82—Generator. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terminology used in this specification is only for the purpose of describing specific embodiments and is not intended to limit the invention.

[0023] In related technologies, existing pumped-storage power stations typically employ a method of "pumping water during periods of low electricity prices and releasing water to generate electricity during periods of high electricity prices" for energy redistribution. While this can balance the grid load, the pumping process relies on large motors and pumps, resulting in high energy consumption and operating costs. Furthermore, relying solely on electricity to pump water back to the upper reservoir 1 limits overall energy utilization efficiency. Especially in scenarios with limited terrain, small headroom, or large backflow volumes, even higher electricity consumption is required to pump large volumes of water back to the upper reservoir 1, leading to lower overall system efficiency and hindering the construction of energy-efficient hydropower facilities.

[0024] Through repeated research, the inventors discovered that the water hammer pump, as a self-driven pump that operates based on fluid inertia and the water hammer effect, can achieve a certain head of water lifting without external energy input. However, in existing technologies, water hammer pumps are mostly used in rural water lifting and river water intake scenarios, and their water lifting principle has not yet been systematically applied to hydroelectric power generation devices. Furthermore, there is a lack of mature structural arrangements that coordinate water hammer pumps with upper, middle, and lower water tanks to form a circulating water potential energy recovery system. Therefore, existing pumped storage models still suffer from high energy consumption, reliance on electric pumping equipment, and low energy efficiency.

[0025] Therefore, in order to reduce the pumping power consumption of traditional pumped storage systems and improve the energy utilization efficiency of the water return process, embodiments of this application provide a water-hammer effect-based hydropower generation circulating water return structure, a water-hammer effect-based circulating water return device, and a water-hammer effect-based circulating water return method. This technical solution can autonomously lift the water returned from power generation to the upper water tank 1 without consuming additional external energy, thereby reducing the proportion of water that needs to be pumped back by electricity and significantly reducing the overall cost of hydropower generation.

[0026] like Figure 1 As shown, this embodiment of the invention provides a hydroelectric power generation device based on the water hammer effect and the principle of circulating water return. By setting the potential energy pump 4 in the lower water tank 3, and utilizing the circulating arrangement of the upper water tank 1, the hydroelectric power generation mechanism 8, the middle water tank 2, the inlet pipe 5, the potential energy pump 4, the lifting pipe 6, and the upper water tank 1, the water after power generation can be lifted to a significant height without external energy under the action of water hammer. In this case, most of the water returned after power generation can be transported back to the upper water tank 1 without relying on electric pumping, and only about 30% of the water needs to be pumped by electricity, achieving a significant reduction in energy consumption.

[0027] This invention utilizes the water hammer effect generated by the potential energy pump 4 to construct a natural potential energy enhancement mechanism. This allows the system to reuse energy using the inertia of its own water flow, reducing the workload of the pumping motor and effectively lowering the operating costs in the hydropower generation cycle. Simultaneously, the lower reservoir 3 adopts a 2m long and 1.5m wide cuboid trough structure, which can stably receive the unlifted water flow and ensure a stable working head for the potential energy pump 4. While maintaining long-term reliable system operation, this invention achieves higher energy-saving effects by increasing the natural water lifting ratio in the return water process. Compared to traditional pumped storage models, it is greener and more economical, making it suitable for widespread use in hydropower generation scenarios with limited terrain, requiring significant lifting heights, or being sensitive to energy efficiency.

[0028] The potential energy pump 4 adopts a water hammer pump structure, which includes a pressure tank 41 (also known as an air chamber). The water hammer effect is generated by the water hammer pump.

[0029] In this embodiment, a water-hammer effect-based hydroelectric power generation circulating water return structure is also provided. The upper water tank 1 is located at the highest point of the entire system, with a height that meets the head requirements for hydroelectric power generation. The water effluent from the upper water tank 1 is used to generate electricity through a hydroelectric power generation mechanism, and the return water after power generation enters the lower middle water tank 2, with a height difference of 10m between the middle water tank 2 and the lower water tank 3.

[0030] The outlet of the middle water tank 2 is connected to the inlet pipe 5, and the other end of the inlet pipe 5 is connected to the inlet of the potential energy pump 4 located in the lower water tank 3.

[0031] The potential energy pump 4 employs a mechanical water hammer lifting structure, which can generate a water hammer effect by utilizing the inertia of water flow and pressure waves without external energy input. In this embodiment, the water lifting efficiency of the potential energy pump 4 can reach 60% to 70%.

[0032] The outlet of the potential energy pump 4 is connected to the water lifting pipe 6, which is used to transport the lifted water back to the upper water tank 1 to realize the circulation and recharge of the water body.

[0033] The sink 3 adopts a cuboid trough structure with a base measuring 2m in length and 1.5m in width. It is used to receive the unlifted water flow and maintain the stable head required by the potential energy pump 4.

[0034] The dimensions and parameters in this embodiment ensure that the potential energy pump 4 generates an effective water hammer effect, thereby achieving a natural lift of most of the return water and significantly reducing the energy consumption of the external pumping system.

[0035] A hydroelectric power generation method based on water hammer effect and circulating water includes the following steps: Power generation steps: Water from the upper water tank 1 is introduced into the hydroelectric power generation mechanism 8, and the potential energy of the water is used to generate electricity, resulting in return water after power generation; specifically, the hydroelectric power generation mechanism 8 includes a water turbine 81 and a generator 82, and the upper water tank 1 is connected to a power generation water pipe 7, with one end of the power generation water pipe 7 extending away from the upper water tank and close to the water turbine 81. Recirculation step: The recirculated water obtained from the power generation step is transported to the secondary water tank 2 for storage; Water hammer driving steps: Water from the middle water tank 2 is introduced into the potential energy pump 4 located in the lower water tank 3 through the inlet pipe 5, and the water hammer effect is triggered by the inertia of the water flow. Water lifting step: Using the water hammer effect generated by the water hammer drive step, a portion of the water is lifted through the water lifting pipe 6 and transported to the upper water tank 1.

[0036] The circulation process involves returning unlifted water to the lower water tank 3, where it, together with water from the middle water tank 2, forms a continuous working cycle for the potential energy pump 4, thereby achieving water circulation lifting and power generation.

[0037] Preferably, in the cyclic step, about 30% of the return water that is not pumped to the upper water tank 1 by the potential energy pump 4 needs to be pumped by electricity, while the remaining water volume is naturally lifted by the water hammer effect.

[0038] Preferably, the cyclic step is as follows: the return water that has not been lifted to the upper water tank 1 by the potential energy pump 4 is pumped to the upper water tank 1 to maintain the water replenishment of the upper water tank 1.

[0039] During work: The upper water tank 1, as the highest water storage unit in the entire system, stores water that releases potential energy and generates electricity through a hydroelectric power generation mechanism. As the water flows through the mechanism, some of its energy is converted into electrical energy, and the water itself, having lost its high potential energy, falls back into the lower middle water tank 2. The middle water tank 2 not only receives the returning water but also provides the stable inflow conditions required for the potential energy pump 4 to operate, ensuring that the water emanating from the middle water tank 2 maintains a constant flow rate and velocity as it flows down to the lower water tank 3.

[0040] When the return water enters the inlet pipe 5 from the intermediate water tank 2, it gains sufficient pressure and inertial momentum within the pipe due to the natural elevation difference between the intermediate water tank 2 and the lower water tank 3. It then enters the potential energy pump 4 located in the lower water tank 3. Under the influence of sudden obstruction of the water flow or pressure wave reflection, the potential energy pump 4 creates a typical water hammer effect, causing a portion of the water to be lifted to a height higher than its incoming water head. The outlet of the potential energy pump 4 is connected to the upper water tank 1 via the lift pipe 6, thus the lifted water returns to the upper water tank 1 along the lift pipe 6, achieving natural recharge of the return water.

[0041] In this process, the potential energy pump 4 relies on the potential energy and inertia of the water flow itself to lift water, without the need for external power. This allows most of the return water in the system to be lifted back to the upper water tank 1 without additional energy consumption. The portion of water that cannot be lifted by the potential energy pump 4 remains in the lower water tank 3 and is replenished to the upper water tank 1 at appropriate times using a supporting pumping device, ensuring that the water storage capacity of the upper water tank 1 meets the continuous water intake needs of the power generation unit. Because the potential energy pump 4 undertakes the main return water task, the workload of the pumping device is significantly reduced, resulting in a substantial reduction in the energy consumption of the entire return water cycle.

[0042] As the water level in the upper reservoir 1 returns to the height required for power generation, the system generates hydroelectric power again. The water generated flows into the middle reservoir 2 and is then pumped back to the upper reservoir 1 by the potential energy pump 4, repeating this cycle continuously. This entire cycle achieves internal energy circulation through the synergistic effect of natural water potential difference and water hammer effect, allowing for further utilization of the residual water potential energy during power generation. This reduces the need for traditional high-energy-consuming pumping, resulting in a more economical and sustainable power generation system.

[0043] During the operation of potential energy pump 4, to generate the water hammer effect, a portion of the water is released through its drainage path and flows back to the lower water tank 3. This water, as water hammer circulating water, participates in the periodic power generation of potential energy pump 4 along with the water from the middle water tank 2. The portion of the return water that enters the system after passing through the power generation mechanism but is not lifted to the upper water tank 1 by potential energy pump 4 is lifted by a pump located in the lower water tank 3 and reinjected into the upper water tank 1 to maintain the effective water volume required for power generation. The two water flows perform different functions in the system: one maintains the water hammer effect, and the other ensures the continuity of the power generation cycle.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydroelectric power generation method based on water hammer effect and circulating water, characterized in that, Includes the following steps: Power generation steps: Water from the upper pool (1) is introduced into the hydroelectric power generation mechanism (8) to generate electricity using the potential energy of the water, and the returned water after power generation is obtained; Return flow step: The return water obtained from the power generation step is transported to the medium water tank (2) for storage; Water hammer driving steps: Water from the middle water tank (2) is fed into the potential energy pump (4) located in the lower water tank (3) through the inlet pipe (5), and the water hammer effect is triggered by the inertia of the water flow. Water lifting step: Using the water hammer effect generated by the water hammer drive step, a portion of the water is lifted through the water lifting pipe (6) and transported to the upper water tank (1); The circulation process involves returning the unlifted water to the lower water tank (3), where it, together with the water from the middle water tank (2), forms a continuous working cycle for the potential energy pump (4), thereby achieving the circulation lifting of the water body and the circulation power generation.

2. The hydropower generation method based on water hammer effect and circulating water according to claim 1, characterized in that, In the cyclical process, the return water that is not pumped to the upper water tank (1) by the potential energy pump (4) needs to be pumped by electric power, while the remaining water volume is naturally lifted by the water hammer effect.

3. The hydropower generation method based on water hammer effect and circulating water according to claim 1, characterized in that, The cycle steps are as follows: the return water that has not been lifted to the upper water tank (1) by the potential energy pump (4) is pumped to the upper water tank (1) to maintain the water replenishment of the upper water tank (1).

4. A hydroelectric power generation circulating water return structure applied to the method described in any one of claims 1-3, characterized in that, include: upper pool(1); The middle water tank (2) is located below the upper water tank (1) and is used to receive the return water discharged from the upper water tank (1) through the hydroelectric power generation mechanism; The lower water tank (3) is located below the middle water tank (2); A potential energy pump (4) is installed in the lower water tank (3) to generate a water hammer effect using the water flow from the middle water tank (2); The water inlet pipe (5) is connected at one end to the middle water tank (2) and at the other end to the water inlet of the potential energy pump (4), and is used to introduce water from the middle water tank (2) into the potential energy pump (4). A water lifting pipe (6) is connected at one end to the outlet of the potential energy pump (4) and at the other end to the upper water tank (1), for transporting water lifted by the potential energy pump (4) to the upper water tank (1). The height difference between the middle water tank (2) and the lower water tank (3) and the size parameters of the inlet pipe (5) and the lifting pipe (6) are configured such that the potential energy pump (4) can generate a water hammer effect sufficient to lift water back to the upper water tank (1).

5. The hydropower generation circulating water return structure according to claim 4, characterized in that, The height difference between the middle water tank (2) and the lower water tank (3) is 5m to 20m; The diameter of the water inlet pipe (5) is 300mm to 500mm; The length of the water inlet pipe (5) is 20m to 50m; The diameter of the water lifting pipe (6) is 100mm to 350mm.

6. The hydropower generation circulating water return structure according to claim 4, characterized in that, The drainage pool (3) is a trough-type or box-type structure; A water pump is installed in the lower water tank (3). The water inlet of the water pump is connected to the lower water tank (3), and the water outlet is connected to the upper water tank (1). It is used to pump the part of the water that is not lifted to the upper water tank (1) by the potential energy pump (4) back to the upper water tank (1) so that the return water volume of the whole system meets the water supply needs of the hydroelectric power generation mechanism.

7. A hydroelectric power generation device applied to the method of any one of claims 1-3, characterized in that, include: upper pool(1); A hydroelectric power generation mechanism (8) is located downstream of the upper water tank (1) and is used to generate electricity using the potential energy of the water in the upper water tank (1). The middle water tank (2) is used to receive the return water after the hydroelectric power generation mechanism (8) generates electricity; sink(3); A potential energy pump (4) is installed in the lower water tank (3) to generate a water hammer effect and lift the water using the water flow from the middle water tank (2); The water inlet pipe (5) is connected at one end to the middle water tank (2) and at the other end to the water inlet of the potential energy pump (4); Water lifting pipe (6) is connected to the lower water tank (3) and the upper water tank (1) respectively, and is used to transport the water lifted by the potential energy pump (4) to the upper water tank (1); The potential energy pump (4) is used to lift the water entering the potential energy pump (4) to a height higher than the middle water tank (2) and return it to the upper water tank (1) without external energy input.

8. The hydroelectric power generation device according to claim 7, characterized in that, The height of the medium-sized water tank (2) is 5m to 20m above the ground; The water inlet pipe (5) has a diameter of 300mm to 500mm and a length of 20m to 50m; The diameter of the water lifting pipe (6) is 100mm to 350mm; This results in the water lifting height of the potential energy pump (4) being 15m to 100m; The sink (3) is a cuboid trough structure with a base length of 1m to 5m and a width of 0.5m to 3m.

9. The hydroelectric power generation device based on water hammer effect circulating water according to claim 7, characterized in that, Water that is not lifted to the upper water tank (1) by the potential energy pump (4) flows back to the lower water tank (3) through the water lifting pipe (6) and together with the water flow from the middle water tank (2) forms the working cycle of the potential energy pump (4).

10. The hydroelectric power generation device based on water hammer effect circulating water according to claim 7, characterized in that, A water pump is installed in the lower water tank (3). The water inlet of the water pump is connected to the lower water tank (3), and the water outlet is connected to the upper water tank (1). It is used to pump the part of the water that is not lifted to the upper water tank (1) by the potential energy pump (4) back to the upper water tank (1) so that the return water volume of the whole system meets the water supply needs of the hydroelectric power generation mechanism.

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