Water circulation power generation system based on the kinetic energy of water flow drop

Abstract

This invention discloses a water-circulation power generation system based on the kinetic energy of water flow drop, featuring natural, environmentally friendly, energy-saving, and clean characteristics. It can generate electricity by circulating water resources from sources such as the sea, rivers, lakes, and reservoirs. The invention includes a water intake device located at the water source, multiple water hammer pumps, water tanks, a booster tower, and turbine components distributed at different corresponding heights on the mountainside. A first water conveyance path connects the water intake device and the multiple water tanks to transport water sequentially upwards along the tanks. A second water conveyance path connects the water source and the multiple water tanks to transport water sequentially downwards along the tanks to the booster tower. The first water conveyance path is equipped with a pumping mechanism that uses the water flow drop as power to transport water upwards, and the second water conveyance path is equipped with a booster power generation device that converts the power of the water flow drop into electrical energy. This invention has a simple structure, is flexible in application, convenient to construct, has stable operating efficiency, requires less stringent geographical conditions, and is of great significance for achieving carbon neutrality.

Description

Technical Field

[0001] This invention relates to a water circulation power generation system based on the kinetic energy of water flow drop. Background Technology

[0002] Electricity is the lifeblood of national development, especially clean hydropower. my country's hydropower manufacturing and application have reached world-class levels, with the entire industry showing vigorous development and significant economic benefits. Currently, hydropower technology is basically divided into three categories: dam-type, diversion-type, and hybrid-type. However, because all require the construction of dams, the construction period is long, infrastructure investment is large, and there is a certain degree of damage to the ecological environment. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a water circulation power generation system based on the kinetic energy of water flow drop, which requires less engineering work, has lower construction costs, and has less stringent requirements for the installation geographical environment.

[0004] To achieve the above objectives, the present invention provides a water circulation power generation system based on the kinetic energy of water flow drop, comprising a water intake device located at a water source, multiple water pools distributed at different heights on a mountain, a first water conveyance path connecting the water intake device and the multiple water pools for sequentially conveying water upwards along the multiple water pools, and a second water conveyance path connecting the water source and the multiple water pools for sequentially conveying water downwards along the multiple water pools. A water pumping mechanism is installed on the first water conveyance path to convey water upwards using the water flow drop as power, and a booster power generation device is installed on the second water conveyance path to convert the water flow drop kinetic energy into electrical energy. Adjacent to the second water conveyance path... At least one of the aforementioned booster power generation devices is connected between the two water pools. The booster power generation device includes a booster water tower and a turbine assembly. The booster water tower includes an inlet pipe, an overflow pipe, and a drain pipe. The inlet pipe of the booster water tower is connected to the overflow pipe of the water pool located at the higher position / the upstream booster water tower. The overflow pipe of the booster water tower is connected to the inlet pipe of the water pool located at the lower position / the downstream booster water tower. The turbine assembly is connected between the drain pipe of the booster water tower and the water pool located at the lower position. The booster water tower includes a straight cylindrical tower body with a conical lower end. The tip of the conical shape is connected to the drain pipe. A float is movably installed in the tower body.

[0005] Furthermore, the water intake device includes a tank body, the tank body includes a lower chamber, and the water lifting mechanism includes a first water lifting mechanism disposed between the water intake device and the water tank. The first water lifting mechanism includes a first inlet pipe, a first water hammer pump, and a first outlet pipe disposed in the lower chamber. One end of the first inlet pipe is connected to the side wall of the tank body, and an inlet hole communicating with the first inlet pipe is opened on the outside of the tank body. The other end of the first inlet pipe is connected to the inlet end of the first water hammer pump, and one end of the first outlet pipe is connected to the outlet end of the first water hammer pump. The other end of the first outlet pipe extends through to the outside of the tank body.

[0006] Furthermore, the first water inlet pipe is inclined, one end of the first water inlet pipe has a flared opening, and a filter screen is provided at the water inlet hole on the outside of the tank.

[0007] Furthermore, the chamber includes an upper chamber located above the lower chamber, a first water pump is installed in the upper chamber, a second water inlet pipe extending through the lower chamber and a second water outlet pipe connected to the first water pump are connected to the first water pump, and a solar power supply mechanism for driving the first water pump is installed on the top of the chamber.

[0008] Furthermore, the first outlet pipe and the water tank are connected by a water conveying mechanism, which includes a first rigid pipe, a second rigid pipe, a short flexible hose, and a first support tower. The top of the first support tower is equipped with a movable adapter. One end of the first rigid pipe is connected to the first outlet pipe, and the other end of the first rigid pipe is connected to the movable adapter through the short flexible hose. Both ends of the second rigid pipe are connected to the movable adapter and the water tank, respectively.

[0009] Furthermore, the water lifting mechanism includes a second water lifting mechanism disposed between two adjacent water pools along the first water conveyance path. The second water lifting mechanism includes a third rigid pipe, a fourth rigid pipe, and a second water hammer pump. The two ends of the third rigid pipe are respectively connected to the lower water pool and the inlet of the second water hammer pump. The third rigid pipe is inclined and used to generate water flow drop power. The two ends of the fourth rigid pipe are respectively connected to the outlet of the second water hammer pump and the higher water pool.

[0010] Furthermore, the second water pumping mechanism includes a first water tank, a second water hammer pump is installed in the first water tank, a second water pump is installed between the first water tank and the lower water tank of the two pools, the second water pump is connected to the first water tank and the water tank through a third water inlet pipe and a third water outlet pipe, respectively, and the second water pump is also connected to a solar power supply mechanism for driving its operation.

[0011] Furthermore, the turbine assembly includes at least one turbine and a second water tank that cooperates with the turbine to receive the falling water. The second water tank is connected to the turbine located downstream or to a pool located at a lower position.

[0012] Furthermore, the turbine assembly is located in the lower of two adjacent pools along the second water conveyance path. The turbine assembly includes a second support tower, and the turbine and the second water tank are mounted on the second support tower.

[0013] The beneficial effects of this invention are as follows: This invention utilizes the drop in water flow as power, continuously transporting water from the water source to a higher elevation along a first water conveyance path via a pumping mechanism. The water is then input into and stored in multiple pools. During the lifting and transporting process, the kinetic energy of the water is converted into potential energy. As the water falls along a second water conveyance path, a booster generator pressurizes the water flow, converting its potential energy into electrical energy. The water ultimately flows back to the water source. The entire system operation requires no additional power supply, exhibits high electrical energy conversion efficiency, and the water resources pumped into the pools can be used to supply the daily needs of residents. The implementation of this invention requires minimal geographical conditions, effectively utilizes water resources located at lower elevations, and features simple construction, short construction period, and low investment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the connection layout of the various components in an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the booster water tower according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the water tank according to an embodiment of the present invention;

[0017] Figure 4 This is a partial structural schematic diagram of the water conveying mechanism according to an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the connection layout of the components according to another embodiment of the present invention;

[0019] Figure 6 This is a cross-sectional view of the water intake device according to an embodiment of the present invention;

[0020] Figure 7 This is a schematic diagram illustrating the working principle of the water hammer pump according to an embodiment of the present invention. Detailed Implementation

[0021] Examples of implementations of the water circulation power generation system based on the kinetic energy of water flow drop in this invention Figure 1-7As shown: The system includes a water intake device 1 located at water source a, and multiple pools 2 distributed at different heights on mountain b. A first water conveyance path 31 connects the water intake device 1 and the pools 2 to sequentially transport water upwards along the pools 2. A second water conveyance path 32 connects the water source a and the pools 2 to sequentially transport water downwards along the pools 2. A water lifting mechanism is installed on the first water conveyance path 31, using the water drop as power to transport water upwards. Along the first water conveyance path 31... The water lifting mechanism is installed between adjacent water intake devices 1 and water pool 2, as well as between water pools 2 and water pools 2, which can transport water to higher places step by step and temporarily store it in the corresponding water pools 2. A booster power generation device is installed on the second water conveyance path 32 to convert the power of the water flow drop into electrical energy. The booster power generation device is installed between adjacent water pools 2 along the second water conveyance path 31. The booster power generation device can pressurize the falling water flow, increase its impact force, and convert the pressurized water flow into electrical energy.

[0022] like Figure 6 As shown, the water intake device 1 includes a tank body 11, the tank body 11 includes a lower chamber 12, and the water lifting mechanism includes a first water lifting mechanism disposed between the water intake device 1 and the water tank 2. The first water lifting mechanism includes a first water inlet pipe 411 disposed in the lower chamber 12, a first water hammer pump 412, and a first water outlet pipe 413. One end of the first water inlet pipe 411 is connected to the side wall of the tank body 11. A water inlet hole 111 communicating with the first water inlet pipe 411 is opened on the outer side wall of the tank body 11, and external water can enter the first water inlet pipe 411 through the water inlet hole 111. The other end of the first water inlet pipe 411 is connected to the water inlet end of the first water hammer pump 412. One end of the first water outlet pipe 413 is connected to the water outlet end of the first water hammer pump 412, and the other end of the first water outlet pipe 413 extends through to the outside of the tank body 11.

[0023] The water intake device 1 is floated on the surface of the water source, and by adjusting the counterweight, the inlet 111 is kept submerged in the water. Water outside the chamber 11 flows along the first inlet pipe 411 towards the inlet of the first water hammer pump 412 under the influence of water pressure and the drop in water flow. To improve the power of the water flow, the first inlet pipe 411 is inclined, and one end of the first inlet pipe 411 has a flared opening to improve water reception. A filter screen 13 is installed at the inlet 111 on the outside of the chamber 11 to remove floating impurities and prevent clogging. The first water hammer pump 412 uses the kinetic energy of the water flow to pump it upwards along the first outlet pipe 413.

[0024] The chamber 11 also includes an upper chamber 14 located above the lower chamber 12. A first water pump 15 is installed in the upper chamber 14. The first water pump 15 is connected to a second water inlet pipe 16 extending through the lower chamber 14 and a second water outlet pipe 17 connected to the outside of the chamber 11. The second water outlet pipe 17 is connected to the outer side wall of the chamber 11 at a position above the water surface. The second water inlet pipe 16 is located near the bottom of the lower chamber 14. A solar power supply mechanism for driving the first water pump 15 is installed at the top of the chamber 11. The solar power supply mechanism includes a photovoltaic panel 18 for receiving light energy and converting it into electrical energy. In order to achieve uninterrupted operation 24 hours a day, the solar power supply mechanism may also include a storage battery for energy storage. Since the first water hammer pump 412 generates tailwater in the lower chamber 12 during operation, the first water pump 15 can be used to pump the tailwater back to the water source, thus achieving the discharge of tailwater and preventing the lower chamber 12 from being flooded. This avoids affecting the normal operation of the first water hammer pump 41 and avoids increasing the overall weight of the water intake device.

[0025] like Figure 1 , 4 As shown, the outlet of the first water hammer pump 412 is connected to the water tank 2 via a water conveying mechanism. The water conveying mechanism includes a first rigid pipe 51, a second rigid pipe 52, a short flexible hose 53, and a first support tower 54. A movable adapter is provided at the top of the first support tower 54. One end of the first rigid pipe 51 is connected to the first outlet pipe 413. The first rigid pipe 51 and the first outlet pipe 413 can also be the same component. The other end of the first rigid pipe 51 is connected to the short flexible hose 53. 3. Connected to the movable adapter, the two ends of the second rigid pipe 52 are respectively connected to the movable adapter and the water tank 2. In this embodiment, the movable adapter includes a ball head adapter 551 that is connected to the short flexible hose 53 and a ball head connecting sleeve 552 disposed at one end of the second rigid pipe 52. The ball head adapter 551 and the ball head connecting sleeve 552 form a sleeve fit that can move relatively within a certain angle range. The top of the first support tower 54 is connected and fixed to the ball head connecting sleeve 552. The first support tower 54 can be erected on the bank or at the bottom of the water source. Its main function is to support the first rigid pipe 51 and the second rigid pipe 52, maintaining the reliability and stability of the overall structure. In addition, it can also be used for the movable connection between the first rigid pipe 51 and the second rigid pipe 52. Through cooperation with the short flexible hose 53, the first rigid pipe 51 can swing relative to the second rigid pipe 52 within a certain angle range, so that the water source can ensure a reliable connection between the water intake device 1, the water pool 2, and the water source a during high tide and low tide.

[0026] like Figure 3As shown, the water lifting mechanism includes a second water lifting mechanism disposed between two adjacent water pools 2 along the first water conveyance path 31. The second water lifting mechanism includes a third rigid pipe 421, a fourth rigid pipe 422, and a second water hammer pump 423. The two ends of the third rigid pipe 421 are respectively connected to the lower water pool 2 and the inlet of the second water hammer pump 423. The third rigid pipe 421 is inclined and used to generate water flow drop force. The two ends of the fourth rigid pipe 422 are respectively connected to the outlet of the second water hammer pump 423 and the higher water pool 2. When the water in the lower water pool 2 falls along the third rigid pipe 61, water flow drop force is generated. Through the water lifting action of the second water hammer pump 423, water can be transported along the fourth rigid pipe 422 to the higher water pool 2.

[0027] The second water pumping mechanism also includes a first water tank 424, in which the second water hammer pump 423 is disposed. A second water pump 425 is disposed between the first water tank 424 and the lower-lying water tank 2. The second water pump 425 is connected to the first water tank 424 and the water tank 2 via a third inlet pipe 426 and a third outlet pipe 427, respectively. The second water pump 425 is also connected to a solar power supply mechanism for driving its operation. The solar power supply mechanism includes a photovoltaic panel 18 for receiving light energy and converting it into electrical energy. To achieve 24-hour uninterrupted operation, the solar power supply mechanism may also include a battery for energy storage. Since the second water hammer pump 423 produces tailwater during operation, the first water tank 424 is used to collect and temporarily store this tailwater. The second water pump 425 can pump the tailwater back into the water tank 2, realizing the recycling of tailwater, reducing environmental impact, and avoiding waste of water resources.

[0028] like Figure 1-3 As shown, in this embodiment, two booster power generation devices 7 are connected between two adjacent water pools 2 along the second water conveyance path 32, which can improve the conversion rate of electrical energy. The two booster power generation devices 7 are in an upstream and downstream position relationship. The booster power generation device 7 includes a booster water tower 71 and a water turbine assembly 72. The water turbine assembly 72 is connected to a generator set (not shown in the figure) for generating electrical energy. The booster water tower 71 includes an inlet pipe 711, an overflow pipe 712, and a drain pipe 713. The inlet pipe 711 of the upstream booster water tower 71 is connected to the water pool 2 located at the higher position of the two water pools 2. The inlet pipe 711 of the downstream booster water tower 71 is connected to the overflow pipe 712 of the upstream booster water tower 71. The overflow pipe 712 of the downstream booster water tower 71 is connected to the water pool 2 located at the lower position of the two water pools 2.

[0029] In the two booster towers 71 mentioned above, the water in the higher water tank 2 first enters the upstream booster tower 71. The flow rate of the water entering the booster tower 71 is greater than the flow rate of the water discharged from the drain pipe 713 of the booster tower 71, so that the liquid level in the booster tower 71 can rise to the position of the overflow pipe 712. The excess water will flow along the overflow pipe 712 into the downstream booster tower 71. Similarly, the flow rate of the water flowing into the downstream booster tower 71 through the inlet pipe 711 must be at least equal to the flow rate of the water discharged from the drain pipe 713 of the downstream booster tower 71. The excess water can flow along the overflow pipe 712 of the downstream booster tower 71 into the lower water tank 2 for recycling.

[0030] The turbine assembly 72 is connected between the drain pipe 713 of the booster tower 71 and the water tank 2 located at a lower position. In this embodiment, the turbine assembly 72 includes two turbines 721 and two second water tanks 722 that cooperate with the turbines 721 to collect the falling water. The turbine assembly 72 includes a second support tower 717. The two turbines 721 and the two second water tanks 722 are erected at different heights via the second support tower 717. The turbines 721 located at relatively higher positions are driven by the water pressurized and discharged from the drain pipe 713 to rotate and generate electricity. During this process, the second water tanks 722 cooperate with it to collect the falling water. The second water tanks 722 collect the water through a guide pipe. The falling water flows onto the turbine 721 located at a lower position, and uses the water flow to generate electricity in a secondary manner, improving the power conversion rate. In conjunction with the second water tank 722 located at a lower position, the water is guided to the two adjacent water pools 2 located at a lower position. The turbine assembly 72 is located in the lower position of the two adjacent water pools 2 along the second water conveyance path 32. The inlet pipe 711 of the booster tower 71 located upstream is connected to a certain height position of the water pool 2, so that when the liquid level in the water pool 2 rises to a certain height position, it can naturally overflow along the inlet pipe 711 and flow into the booster tower 71, avoiding the water level in the water pool 2 from being too high and causing the turbine assembly 72 to be submerged or water to overflow along the top edge of the water pool 2.

[0031] In addition to temporarily storing water falling along the second water conveyance path 32, the booster tower 71 can also pressurize the water to improve the power generation efficiency of subsequent turbine components. In this embodiment, the booster tower 71 further includes a cylindrical tower body 714, the lower end of which is tapered. The tip of the tapered shape is connected to the drain pipe 713. An actuator valve 716 is installed at the drain pipe 713 to control the water flow rate. The inlet pipe 711 is connected to the top center of the tower body 714, and the overflow pipe 712 is connected to the upper side of the tower body 714. A float 715 is movably installed within the tower body 714. The float is placed in the water in the tower body 714. While the water in the tower body 714 gives the float 715 an upward buoyancy, the weight of the float 715 itself can also give the water in the tower body 714 a downward pressure, increasing the pressure when the water is discharged along the drain pipe 713. When the water level in the tower body 714 rises to the overflow pipe 712, it can flow through the overflow pipe 712 to the lower water tank 2 / downstream booster tower 71 for recycling or continued boosting for power generation.

[0032] In practice, in order to increase the amount of water taken from the water source, multiple water intake devices 1 can be installed at the water source and connected to the lowest water pool 2 in the multiple water pools 2 through a water conveying mechanism.

[0033] The water hammer pump described in this invention is a water lifting device that does not consume energy. It can transport water to higher ground using the power of water flow. It is a relatively mature product on the market and is commonly used for irrigation of forests, farmland, and orchards, as well as for water supply in mountainous areas and villages, and afforestation of barren hills. This invention preferably uses a Dok water hammer pump, the schematic diagram of which is shown in Figure 7. The water hammer pump described in this invention includes an inlet end 81, an outlet end 82, and a tailwater discharge end 83. Water hammer pumps are a relatively conventional prior art technology, and their detailed operating principle will not be elaborated upon here.

[0034] Figure 1 This diagram illustrates the connection layout of various components in an embodiment of the hydroelectric power generation system of the present invention. This embodiment employs a simplified, miniaturized implementation, comprising only two water tanks 2. Figure 1 The thick line represents the first water conveyance path, and the thin line represents the second water conveyance path. Figure 5 A schematic diagram of the connection layout of the components of another embodiment of the hydroelectric power generation system of the present invention is shown. In this other embodiment, a large-scale implementation scheme is adopted, including several water pools 2 distributed at different heights on the mountain a. Figure 5 Similarly, the thick line represents the first water conveyance path, and the thin line represents the second water conveyance path. Figure 5 The text uses a simplified representation, omitting components such as the conveying mechanism, water pumping mechanism, and booster generator.

[0035] Compared to existing technologies that directly utilize the drop in elevation to generate electricity (e.g., dam power generation), this invention effectively utilizes lower-lying water resources. It generates electricity by actively creating a difference in water elevation, has fewer requirements for the geographical environment, simplifies construction, and provides stable operation. The raised water can also supply the daily needs of residents. Furthermore, the water is returned to the source after use, achieving a cycle and minimizing harm to the natural environment. This invention is of great significance for achieving carbon neutrality.

[0036] The above embodiments are merely one preferred embodiment of the present invention. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included within the protection scope of the present invention.

Claims

1. A water circulation power generation system based on the kinetic energy of water flow drop, characterized in that: The system includes a water intake device located at a water source, multiple pools distributed at different elevations on the mountainside, a first water conveyance path connecting the water intake device and the pools for sequentially conveying water upwards along the pools, and a second water conveyance path connecting the water source and the pools for sequentially conveying water downwards along the pools. A pumping mechanism is installed on the first water conveyance path to propel water upwards using the drop in water flow as power, and a booster generator is installed on the second water conveyance path to convert the power of the drop in water flow into electrical energy. At least one of the booster generators is connected between any two adjacent pools along the second water conveyance path. The booster power generation device includes a booster tower and a turbine assembly. The booster tower includes an inlet pipe, an overflow pipe, and a drain pipe. The inlet pipe of the booster tower is connected to a water tank at a higher location / the overflow pipe of an upstream booster tower. The overflow pipe of the booster tower is connected to a water tank at a lower location / the inlet pipe of a downstream booster tower. The turbine assembly is connected between the drain pipe of the booster tower and the water tank at a lower location. The booster tower includes a cylindrical tower body, the lower end of which is connected to the drain pipe. A float is movably installed within the tower body. The water intake device includes a tank body with a lower chamber. The water lifting mechanism... The system includes a first water-lifting mechanism positioned between the water intake device and the water tank. This mechanism comprises a first inlet pipe, a first water hammer pump, and a first outlet pipe, all located in the lower chamber. One end of the first inlet pipe is connected to the side wall of the tank body. An inlet hole communicating with the first inlet pipe is located on the outer side of the tank body. The other end of the first inlet pipe is connected to the inlet of the first water hammer pump. One end of the first outlet pipe is connected to the outlet of the first water hammer pump, and the other end extends through the outer side of the tank body. The water intake device is designed to float on the surface of the water source, and by adjusting the counterweight, the inlet hole can be kept submerged. When not submerged in water, the water outside the chamber flows along the first inlet pipe toward the inlet of the first water hammer pump under the action of water pressure and the power of the water flow difference. The chamber includes an upper chamber located above the lower chamber. The upper chamber is equipped with a first water pump. The first water pump is connected to a second inlet pipe extending through the lower chamber and a second outlet pipe connected to the outside of the chamber. A solar power supply mechanism for driving the first water pump is installed on the top of the chamber. The first water pump is used to pump the tailwater generated by the first water hammer pump in the lower chamber and discharge it back to the water source through the second outlet pipe to prevent the lower chamber from being flooded and to avoid increasing the overall weight of the water intake device.

2. The water circulation power generation system based on the kinetic energy of water flow drop as described in claim 1, characterized in that: The first water inlet pipe is inclined, and one end of the first water inlet pipe has a flared opening. A filter screen is installed at the water inlet on the outside of the tank.

3. The water circulation power generation system based on the kinetic energy of water flow drop as described in claim 1, characterized in that: The first outlet pipe and the water tank are connected by a water conveying mechanism, which includes a first rigid pipe, a second rigid pipe, a short flexible hose, and a first support tower. A movable adapter is provided at the top of the first support tower. One end of the first rigid pipe is connected to the first outlet pipe, and the other end of the first rigid pipe is connected to the movable adapter through the short flexible hose. Both ends of the second rigid pipe are connected to the movable adapter and the water tank, respectively.

4. The water circulation power generation system based on the kinetic energy of water flow drop as described in claim 1, characterized in that: The water pumping mechanism includes a second water pumping mechanism disposed between two adjacent water tanks along the first water conveyance path. The second water pumping mechanism includes a third rigid pipe, a fourth rigid pipe, and a second water hammer pump. The two ends of the third rigid pipe are respectively connected to the lower water tank and the inlet of the second water hammer pump. The third rigid pipe is inclined and used to generate water flow drop power. The two ends of the fourth rigid pipe are respectively connected to the outlet of the second water hammer pump and the higher water tank.

5. The water circulation power generation system based on the kinetic energy of water flow drop as described in claim 4, characterized in that: The second water pumping mechanism includes a first water tank, a second water hammer pump is installed in the first water tank, a second water pump is installed between the first water tank and the lower water tank of the two pools, the second water pump is connected to the first water tank and the water tank through a third water inlet pipe and a third water outlet pipe, respectively, and the second water pump is also connected to a solar power supply mechanism for driving its operation.

6. The water circulation power generation system based on the kinetic energy of water flow drop as described in claim 1, characterized in that: The turbine assembly includes at least one turbine and a second water tank that works with the turbine to receive the falling water. The second water tank is connected to the turbine located downstream or to a pool located at a lower elevation.

7. The water circulation power generation system based on the kinetic energy of water flow drop according to claim 6, characterized in that: The turbine assembly is located in the lower water tank among two adjacent water tanks along the second water conveyance path. The turbine assembly includes a second support tower, and the turbine and the second water tank are mounted on the second support tower.

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