Hydroelectric power generation super energy storage system

Abstract

The invention relates to the technical field of energy storage, and discloses a hydroelectric power generation super energy storage system which comprises a main reservoir, an energy storage reservoir and a single-shaft double-cylinder steam turbine. When the generating capacity is full, the pump body pumps water at the downstream of the main reservoir to the energy storage reservoir for storage, and energy conversion when electric power is surplus is completed; when the generating capacity is deficient, the driving gate slides to extrude the limiting plate, after the cover plate is opened, the sealing block on the ejector rod is separated from the protective cover, and water in the energy storage reservoir can flow to the single-shaft double-cylinder turbine through the connecting port to supplement a water source and assist power generation, so that the power gap is quickly filled, the power grid load fluctuation is adapted, and the supply and demand toughness of a power system is improved; meanwhile, through the design that the cover plate is opened firstly and then the sealing block is separated for flow passing, the cover plate can be prevented from directly making contact with water in the energy storage reservoir and bearing high pressure, the situation that the cover plate is difficult to open or broken due to too large water pressure is prevented from structural linkage logic, the key part, namely the cover plate, is effectively protected, the service life of the cover plate is prolonged, and the overall operation safety of the system is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of energy storage, and particularly relates to a water conservancy power generation super energy storage system. BACKGROUND

[0002] With the global energy structure transforming towards clean and low carbon, water conservancy power generation, as a mature and environmentally friendly renewable energy form, continues to increase its proportion in the power system. However, the traditional water conservancy power generation system is significantly affected by natural hydrological conditions, and the power generation capacity presents obvious intermittency and instability, which makes it difficult to accurately match the real-time load demand of the power grid. In the flood season or wet season, the reservoir inflow is large, and the power generation system is often in full load operation, which is prone to power surplus. If these surplus power cannot be stored in time, it can only be wasted by abandoning water. In the dry season or peak electricity consumption period, the inflow is reduced, resulting in a sharp drop in power generation, which is difficult to meet the load demand of the power grid, and needs to rely on traditional energy such as thermal power and gas power for peak shaving and energy supplement, which not only increases energy consumption and carbon emissions, but also reduces the cleanliness of the power system.

[0003] In order to alleviate the above-mentioned supply and demand contradiction, although water conservancy energy storage schemes such as pumped storage have appeared in the prior art, the water outlet components of some pumped storage systems directly contact with the water in the reservoir. When the storage capacity of the energy storage reservoir is large, the cover plate needs to withstand a large water pressure, which is prone to have the problems of excessive opening resistance, opening failure, and even the cover plate is broken due to water pressure impact, resulting in that the energy storage water source cannot be transported to the power generation device in time, and the peak shaving efficiency is affected.

[0004] Therefore, the present application is proposed. SUMMARY

[0005] To solve the above technical problems, the basic idea of the technical scheme of the present application is as follows: A water conservancy power generation super energy storage system, comprising a main reservoir, an energy storage reservoir and a single-shaft double-cylinder steam turbine.

[0006] The energy storage reservoir is arranged downstream of the main reservoir, and the single-shaft double-cylinder steam turbine is connected to the water outlets of the main reservoir and the energy storage reservoir, respectively, and a connecting port is arranged at the water outlet of the energy storage reservoir; A pump body is further installed downstream of the main reservoir, and the pump body is used to pump water to the energy storage reservoir when the power generation capacity is full; The connecting pipe is connected with one of the input ends of the single-shaft double-cylinder steam turbine, the communicating pipe is connected with the other input end of the single-shaft double-cylinder steam turbine, the water outlet of the single-shaft double-cylinder steam turbine is located downstream, and the single-shaft double-cylinder steam turbine is connected with the power generation system.

[0007] The connecting pipe is connected with one of the input ends of the single-shaft double-cylinder steam turbine, the communicating pipe is connected with the other input end of the single-shaft double-cylinder steam turbine, the water outlet of the single-shaft double-cylinder steam turbine is located downstream, and the single-shaft double-cylinder steam turbine is connected with the power generation system.

[0008] The connecting pipe is connected with one of the input ends of the single-shaft double-cylinder steam turbine, the communicating pipe is connected with the other input end of the single-shaft double-cylinder steam turbine, the water outlet of the single-shaft double-cylinder steam turbine is located downstream, and the single-shaft double-cylinder steam turbine is connected with the power generation system.

[0009] The connecting pipe is connected with one of the input ends of the single-shaft double-cylinder steam turbine, the communicating pipe is connected with the other input end of the single-shaft double-cylinder steam turbine, the water outlet of the single-shaft double-cylinder steam turbine is located downstream, and the single-shaft double-cylinder steam turbine is connected with the power generation system.

[0010] The connecting pipe is connected with one of the input ends of the single-shaft double-cylinder steam turbine, the communicating pipe is connected with the other input end of the single-shaft double-cylinder steam turbine, the water outlet of the single-shaft double-cylinder steam turbine is located downstream, and the single-shaft double-cylinder steam turbine is connected with the power generation system.

[0011] The connecting pipe is connected with one of the input ends of the single-shaft double-cylinder steam turbine, the communicating pipe is connected with the other input end of the single-shaft double-cylinder steam turbine, the water outlet of the single-shaft double-cylinder steam turbine is located downstream, and the single-shaft double-cylinder steam turbine is connected with the power generation system.

[0012] As a preferred embodiment of the present application, the top rod end is provided with a synchronization plate, the synchronization plate is arranged on the inner side wall of the protective cover, and a plurality of groups of push plates are arranged on the bottom of the synchronization plate, each group of the push plates is provided with a gap, and the gap is in sliding connection with the sliding rod.

[0013] As a preferred embodiment of the present application, the top rod side wall is provided with a synchronization frame, a plurality of pairs of sealing blocks are arranged on the synchronization frame, the sealing blocks are movably inserted into the side wall of the protective cover, and a taper surface is arranged at the end of the sealing block, when the cover plate rotates to open the connecting port, the taper surface contacts the protective cover, thereby generating a gap, wherein the gap facilitates the water flow to enter the protective cover along the gap, and the synchronization protective cover flows to the connecting port.

[0014] As a preferred embodiment of the present application, the energy storage reservoir side wall is provided with a reset cover, a pressing plate is slidably arranged in the reset cover, the top of the pressing plate is connected with a reset rod, the bottom of the pressing plate is connected with a top rod, the reset rod and the top rod are movably inserted into the reset cover, a reset spring is sleeved on the top rod located on the inner side wall of the reset cover, one end of the reset spring is clamped on the pressing plate, and the other end of the reset spring is clamped on the side wall of the reset cover.

[0015] As a preferred embodiment of the present application, the gate back surface is provided with a sleeve plate, a through hole is arranged at the end of the sleeve plate, the through hole movably penetrates the reset rod, the diameter of the through hole is greater than the diameter of the reset rod, and the diameter of the through hole is less than the diameter of the limiting plate.

[0016] Compared with the prior art, the present application has the following advantages: When the power generation capacity is sufficient, the pump body pumps the water downstream of the main reservoir to the energy storage reservoir for storage, thereby completing the energy conversion when the power is in surplus; when the power generation capacity is insufficient, the driving gate slides to press the limiting plate, the top rod is moved by the reset rod to open the cover plate on the connecting port, after the cover plate is opened, the sealing block on the top rod is separated from the protective cover, and the water in the energy storage reservoir can flow to the single-shaft double-cylinder steam turbine through the connecting port to supplement the water source and assist power generation, thereby quickly filling the power gap, adapting to the load fluctuation of the power grid, and improving the supply-demand resilience of the power system; at the same time, the design of opening the cover plate first and then separating the sealing block for flow can avoid the direct contact of the cover plate with the water body in the energy storage reservoir and the bearing of high pressure, prevent the cover plate from being difficult to open or broken due to excessive water pressure from the structure linkage logic, effectively protect the key part of the cover plate, prolong the service life, and improve the overall operation safety of the system; in addition, the double water flows of the main reservoir and the energy storage reservoir jointly act on the single-shaft double-cylinder steam turbine, which can improve the working power of the steam turbine, compared with single water source driving, the output efficiency of the power generation system can be further improved, the power generation capacity can be quickly improved in the power shortage scene, and the power demand can be met.

[0017] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram: Figure 1 A three-dimensional diagram of a super energy storage system for hydropower generation; Figure 2 A plan view of a super energy storage system for hydropower generation; Figure 3 An axial view of a super energy storage system for hydropower generation; Figure 4 This is a side view of a super energy storage system for hydropower generation; Figure 5 A super energy storage system for hydropower generation Figure 3 Enlarged view of point A in the middle; Figure 6 A rear view of a super energy storage system for hydropower generation; Figure 7 A super energy storage system for hydropower generation Figure 6 Enlarged view at point B in the middle; Figure 8 A super energy storage system for hydropower generation Figure 7 Enlarged view at point C; Figure 9 This is a diagram showing the internal structure of the protective cover of a super energy storage system for hydropower generation. Figure 10 A super energy storage system for hydropower generation Figure 9 Enlarged view at point D Figure 11 This is a cross-sectional view of the reset cover of a super energy storage system for hydropower generation.

[0019] In the diagram: 1. Main reservoir; 2. Energy storage reservoir; 3. Connecting pipe; 4. Single-shaft double-cylinder steam turbine; 5. Connecting pipe; 6. Connection port; 7. Return pipe; 8. Pump body; 9. Gate; 10. Gate opening; 11. Inner groove; 12. Crossbeam; 13. Drive motor; 14. Lead screw shaft; 15. Connecting frame; 16. Limiting rod; 17. Limiting seat; 18. Overflow outlet; 19. Stop bar; 20. Protective cover; 21. Partition plate; 22. Countersunk groove; 23. Cover plate; 24. Rocker arm; 25. Sliding rod; 26. Push plate; 27. Synchronizing plate; 28. Top rod; 29. ​​Synchronizing frame; 30. Sealing block; 31. Conical surface; 32. Reset cover; 33. Reset rod; 34. Limiting plate; 35. Sleeve plate; 36. Through hole; 37. Pressure plate; 38. Reset spring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0021] Example 1: like Figures 1 to 11 As shown, a super energy storage system for hydropower includes a main reservoir 1, an energy storage reservoir 2, and a single-shaft twin-cylinder steam turbine 4.

[0022] The energy storage reservoir 2 is located downstream of the main reservoir 1, and the single-shaft double-cylinder steam turbine 4 is connected to the outlets of the main reservoir 1 and the energy storage reservoir 2 respectively, and a connection port 6 is provided at the outlet of the energy storage reservoir 2. A pump body 8 is also installed downstream of the main reservoir 1. The pump body 8 is used to pump water to the energy storage reservoir 2 when the power generation is sufficient. A gate 9 is movably connected to the energy storage reservoir 2. The gate 9 has an overflow outlet 18 for regulating the water volume of the energy storage reservoir 2. A cover plate 23 is rotatably installed on the connection port 6. A protective cover 20 covers the outer wall of the connection port 6. A top rod 28 is inserted into the protective cover 20 and is rotatably connected to the cover plate 23. A reset rod 33 is installed on the top rod 28. A limit plate 34 is installed on the top of the reset rod 33. The gate 9 is slidably connected to the reset rod 33. When the power generation is insufficient, the gate 9 is driven to slide to the highest point and squeezes the limit plate 34, driving the top rod 28 to move and opening the cover plate 23. A sealing block 30 is also installed on the top rod 28. After the cover plate 23 is opened, the sealing block 30 separates from the inserted protective cover 20, which facilitates the water flow into the single-shaft double-cylinder steam turbine 4 for auxiliary power generation.

[0023] like Figures 1 to 11 As shown, in a specific embodiment, a connecting pipe 3 is installed at the bottom of the main reservoir 1. The end of the connecting pipe 3 is connected to one of the input ends of the single-shaft double-cylinder steam turbine 4. A connecting pipe 5 is installed at the end of the connecting port 6, and the connecting pipe 5 is connected to the other input end of the single-shaft double-cylinder steam turbine 4. The outlet of the single-shaft double-cylinder steam turbine 4 is located downstream, and the single-shaft double-cylinder steam turbine 4 is connected to the power generation system. The connecting pipe 3 and the connecting pipe 5 clearly define the connection path between the main reservoir 1, the energy storage reservoir 2, and the single-shaft double-cylinder steam turbine 4, ensuring that the water flow for both conventional and auxiliary power generation is accurately delivered to the steam turbine, and guaranteeing a stable connection of the power generation system.

[0024] like Figures 1 to 11 As shown, a return pipe 7 is further installed at the outlet of the pump body 8. The end of the return pipe 7 is above the energy storage reservoir 2, and the outlet height of the return pipe 7 is higher than the liquid level in the energy storage reservoir 2. The outlet height design of the return pipe 7 avoids backflow of water, ensuring that the pump body 8 can efficiently transport water to the energy storage reservoir 2 when the power generation capacity is sufficient, thereby improving the water storage reliability during the energy storage phase.

[0025] Example 2: The difference between the above embodiments and this embodiment is that: Figures 1 to 11As shown, the energy storage reservoir 2 is equipped with a gate 10, and a gate 9 is movably inserted into the gate 10. An inner groove 11 is formed on the side wall of the gate 10, and the inner groove 11 is slidably connected to the side wall of the gate 9. Several pairs of baffles 19 are installed on the overflow outlet 18, and the baffles 19 are staggered to block debris. The gate 10 and inner groove 11 optimize the sliding stability of the gate 9, and the staggered baffles 19 can block debris in the water, preventing debris from entering the energy storage reservoir 2 and affecting the operation of subsequent components, thus improving the system's anti-interference capability.

[0026] like Figures 1 to 11 As shown, in a specific embodiment, a crossbeam 12 is installed on the side wall of the gate 10, and a drive motor 13 is installed on the crossbeam 12. The output end of the drive motor 13 movably passes through the crossbeam 12, and a lead screw shaft 14 is installed at the output end of the drive motor 13. The lead screw shaft 14 is screwed to the gate 9. A connecting frame 15 is installed on the side wall of the gate 9, and a limit rod 16 is installed through the connecting frame 15. Limit seats 17 are installed at both ends of the limit rod 16, and the side walls of the limit seats 17 are installed on the side wall of the energy storage reservoir 2. The drive motor 13 and the lead screw shaft 14 realize the automatic adjustment of the gate 9. The limit rod 16 and the limit seats 17 further restrict the sliding trajectory of the gate 9, ensuring that the position adjustment of the gate 9 is accurate and stable, and reducing the cost of manual operation.

[0027] Example 3: The difference between the above embodiments and this embodiment is that: Figures 1 to 11 As shown, several pairs of partitions 21 are staggered on the connection port 6. Countersunk grooves 22 are installed on the partitions 21. The sidewalls of the cover plate 23 overlap and are mounted on the countersunk grooves 22. A rocker arm 24 is mounted at the rotation center of the cover plate 23. A sliding rod 25 is mounted on the rocker arm 24. The rocker arm 24 is in an inclined state. A synchronization plate 27 is installed at the end of the push rod 28. The synchronization plate 27 is placed on the inner sidewall of the protective cover 20. Several sets of push plates 26 are installed at the bottom of the synchronization plate 27. Each set of push plates 26 has a gap, and the gap is slidably connected to the sliding rod 25. The partitions 21 and countersunk grooves 22 improve the sealing performance of the cover plate 23 when closed. The cooperation of the rocker arm 24, sliding rod 25, and push plates 26 enables the cover plate 23 to open in a coordinated manner, ensuring that the opening action of the connection port 6 is smooth and controllable.

[0028] like Figures 1 to 11As shown in the specific embodiment, the top rod 28 side wall is provided with a synchronous frame 29, and a plurality of pairs of sealing blocks 30 are installed on the synchronous frame 29. The sealing blocks 30 are movably inserted into the side wall of the protective cover 20, and the sealing blocks 30 are provided with a tapered surface 31 at the tail end. When the cover plate 23 is rotated to open the connecting port 6, the tapered surface 31 is in contact with the protective cover 20, thereby generating a gap. The gap facilitates the water flow to enter the protective cover 20 along the gap, and the protective cover 20 is synchronized with the flow direction of the connecting port 6. The synchronous frame 29 ensures the synchronous action of the sealing blocks 30, and the tapered surface 31 is designed to enable the water flow to enter the protective cover 20 and the connecting port 6 in an orderly manner, thereby avoiding excessive water flow impact to cause component damage, and ensuring the water flow conveying efficiency.

[0029] As shown in the specific embodiment, Figures 1 to 11 Further, the energy storage reservoir 2 side wall is provided with a reset cover 32, and a pressing plate 37 is slidably arranged in the reset cover 32. The top of the pressing plate 37 is connected with a reset rod 33, and the bottom of the pressing plate 37 is connected with a top rod 28. The reset rod 33 and the top rod 28 are movably inserted into the reset cover 32. A reset spring 38 is sleeved on the top rod 28 located on the inner side wall of the reset cover 32. One end of the reset spring 38 is clamped on the pressing plate 37, and the other end of the reset spring 38 is clamped on the side wall of the reset cover 32. The reset cover 32 provides installation and movement space for the reset component, and the reset spring 38 realizes the automatic reset of the top rod 28 and the reset rod 33 without the need for additional power, thereby reducing system energy consumption and improving the reset reliability of the component.

[0030] As shown in the specific embodiment, Figures 1 to 11 Further, the sleeve plate 35 is installed on the back of the gate 9, and a through hole 36 is installed at the tail end of the sleeve plate 35. The through hole 36 movably penetrates the reset rod 33. The diameter of the through hole 36 is greater than the diameter of the reset rod 33, and the diameter of the through hole 36 is less than the diameter of the limiting plate 34. The diameter of the through hole 36 not only ensures the normal movement of the reset rod 33, but also realizes the effective extrusion driving of the reset rod 33 by the gate 9 through the limiting plate 34, thereby avoiding the reset rod 33 from being separated from the sleeve plate 35 and ensuring the stability of the linkage structure.

[0031] The implementation principle of the water conservancy power generation super energy storage system is as follows: In the conventional power generation stage, the water stored in the main reservoir 1 is transported to one of the input ends of the single-shaft double-cylinder steam turbine 4 through the connecting pipe 3 installed at the bottom. The water flow drives the single-shaft double-cylinder steam turbine 4 to operate, thereby driving the power generation system connected thereto to realize power output. The water after completing the work of the single-shaft double-cylinder steam turbine 4 is discharged from the downstream water outlet.

[0032] When the power generation is sufficient (i.e. the power supply and demand is in surplus), the pump body 8 installed downstream of the main reservoir 1 is started, the pump body 8 pumps the water downstream and transports it to the energy storage reservoir 2 through the return pipe 7 connected to the water outlet, because the outlet height of the return pipe 7 is higher than the liquid level of the energy storage reservoir 2, it can ensure that the water flow flows stably into the energy storage reservoir 2 and avoids backflow, at this time the movable plug-in gate 9 on the energy storage reservoir 2 is in the adaptive position, the overflow opening 18 opened on the gate 9 can regulate the water storage capacity of the energy storage reservoir 2, prevent water overflow, and the several pairs of staggered distribution of the baffle rod 19 installed on the overflow opening 18 can block the impurities in the water to prevent the impurities from entering the energy storage reservoir 2 and affecting the operation of the subsequent components.

[0033] The position adjustment of the gate 9 relies on the driving motor 13 installed on the side wall cross beam 12 of the gate 10, the output end of the driving motor 13 is connected with the screw shaft 14 which is screwed with the gate 9 after penetrating through the cross beam 12, starting the driving motor 13 can drive the screw shaft 14 to rotate, and in turn drive the gate 9 to slide along the inner groove 11 of the side wall of the gate 10, at the same time, the limiting rod 16 penetrating through the inside of the gate 9 side wall connecting frame 15 can guide and limit the sliding of the gate 9, to ensure the stable movement of the gate 9.

[0034] When the power generation is insufficient (i.e. the power supply and demand is in short supply), the water stored in the energy storage reservoir 2 needs to be used to assist power generation, at this time the driving motor 13 is started again, and the gate 9 is driven to slide to the highest point by the screw shaft 14. The sleeve plate 35 installed on the back of the gate 9 has a through hole 36 at the end, the through hole 36 is movably penetrated by the reset rod 33 movably inserted in the reset cover 32 of the side wall of the energy storage reservoir 2 (and the diameter of the through hole 36 is greater than the diameter of the reset rod 33 and less than the diameter of the limiting plate 34), when the gate 9 slides to the highest point, the sleeve plate 35 extrudes the limiting plate 34 installed on the top of the reset rod 33 through the through hole 36, and in turn pushes the reset rod 33 to move upward; the bottom of the reset rod 33 is connected with the pressing plate 37 slidingly arranged inside the reset cover 32, the upward movement of the reset rod 33 drives the pressing plate 37 to slide upward along the inner side wall of the reset cover 32 synchronously, and the top rod 28 connected with the pressing plate 37 also moves upward synchronously, at this time the reset spring 38 sleeved on the top rod 28 is stretched by the pressing plate 37 and stores elastic potential energy.

[0035] The synchronization plate 27 mounted at the end of the top rod 28 is located inside the inner wall of the protective cover 20. The top rod 28 moves upward to drive the synchronization plate 27 to move upward synchronously. A plurality of groups of push plates 26 mounted at the bottom of the synchronization plate 27 also move upward synchronously. The slits opened on the push plates 26 are in sliding connection with the slide rods 25 mounted on the swing arms 24 at the connecting port 6. The swing arms 24 are in an inclined state, and the rotation center thereof is connected with the cover plate 23. When the push plates 26 move upward, the slide rods 25 are driven to swing through the slits, and in turn drive the swing arms 24 to rotate. The swing arms 24 drive the cover plate 23 to be separated from the countersunk grooves 22 of the partition plates 21 staggered and mounted on the connecting port 6, and the opening of the connecting port 6 is realized first. In this process, the cover plate 23 is not in direct contact with the water in the energy storage reservoir 2 because the connecting port 6 is opened first, so that the cover plate 23 is prevented from directly bearing the pressure of the water in the reservoir and being difficult to open or being broken due to excessive water pressure.

[0036] During the movement of the top rod 28, the synchronization frame 29 mounted on the side wall of the top rod 28 drives a plurality of pairs of sealing blocks 30 to move upward synchronously, so that the sealing blocks 30 are separated from the movable plug-in state of the side wall of the protective cover 20. When the cover plate 23 has completed the opening action of the connecting port 6, the tapered surface 31 at the end of the sealing block 30 is in contact with the protective cover 20 and a gap is formed. Only then the water in the energy storage reservoir 2 enters the inside of the protective cover 20 along the gap, and then flows to the communicating pipe 5 mounted at the end thereof through the opened connecting port 6. The communicating pipe 5 delivers the water flow to the other input end of the single-shaft double-cylinder steam turbine 4, and the water flow delivered by the connecting pipe 3 from the main reservoir 1 drives the single-shaft double-cylinder steam turbine 4 together, so as to further improve the power generation efficiency to make up for the power gap.

[0037] When the power generation capacity returns to the full state and the energy storage reservoir 2 is not needed to assist power generation, the control driving motor 13 is reversed, the lead screw shaft 14 drives the gate 9 to slide downward along the inner groove 11 to reset, the extrusion force of the gate 9 on the limiting plate 34 disappears, the reset spring 38 in the reset cover 32 releases the elastic potential energy, pulls the pressing plate 37 to move downward, and the pressing plate 37 drives the reset rod 33 and the top rod 28 to reset downward synchronously. When the top rod 28 resets, the synchronization plate 27 drives the push plate 26 to move downward, the push plate 26 drives the slide rod 25 to swing reversely through the slits, and in turn drives the swing arm 24 to drive the cover plate 23 to be re-lapped on the countersunk groove 22 of the partition plate 21, so as to realize the sealing and closing of the connecting port 6. At the same time, the synchronization frame 29 on the top rod 28 drives the sealing block 30 to be re-plugged with the side wall of the protective cover 20, so as to eliminate the gap between the tapered surface 31 and the protective cover 20 and avoid water leakage. At this time, the pump body 8 is started again to continue to pump the downstream water into the energy storage reservoir 2 to store energy, and the system returns to the energy storage or conventional power generation state, so as to realize the energy storage and on-demand release of power in a cycle.

Claims

1. A super energy storage system for hydropower generation, comprising a main reservoir (1), an energy storage reservoir (2), and a single-shaft twin-cylinder steam turbine (4), characterized in that: The energy storage reservoir (2) is located downstream of the main reservoir (1), and the single-shaft double-cylinder steam turbine (4) is connected to the outlets of the main reservoir (1) and the energy storage reservoir (2) respectively, and a connection port (6) is provided at the outlet of the energy storage reservoir (2). A pump body (8) is also installed downstream of the main reservoir (1). The pump body (8) is used to pump water to the energy storage reservoir (2) when the power generation is sufficient. The energy storage reservoir (2) is movably connected to a gate (9), and the gate (9) has an overflow outlet (18) for regulating the water volume of the energy storage reservoir (2). A cover plate (23) is rotatably installed on the connection port (6), and a protective cover (20) covers the outer wall of the connection port (6). A top rod (28) is inserted into the protective cover (20), and the top rod (28) is rotatably connected to the cover plate (23). A reset rod (33) is installed on the top rod (28). 33) A limit plate (34) is installed on the top, and the gate (9) is slidably connected to the reset rod (33). When the power generation is insufficient, the gate (9) is driven to slide to the highest point to squeeze the limit plate (34), drive the top rod (28) to move, and drive the cover plate (23) to open. A sealing block (30) is also installed on the top rod (28). After the cover plate (23) is opened, the sealing block (30) is separated from the plugged protective cover (20), which facilitates the water flow into the single-shaft double-cylinder steam turbine (4) to assist in power generation.

2. The super energy storage system for hydropower generation according to claim 1, characterized in that, The bottom of the main reservoir (1) is equipped with a connecting pipe (3), the end of which is connected to one of the input ends of a single-shaft double-cylinder steam turbine (4). The end of the connecting port (6) is equipped with a connecting pipe (5), which is connected to the other input end of the single-shaft double-cylinder steam turbine (4). The outlet of the single-shaft double-cylinder steam turbine (4) is located downstream, and the single-shaft double-cylinder steam turbine (4) is connected to the power generation system.

3. The super energy storage system for hydropower generation according to claim 1, characterized in that, The outlet of the pump body (8) is equipped with a return pipe (7), the end of the return pipe (7) is above the energy storage reservoir (2), and the outlet height of the return pipe (7) is higher than the liquid level of the energy storage reservoir (2).

4. The super energy storage system for hydropower generation according to claim 1, characterized in that, The energy storage reservoir (2) is provided with a gate (10), and the gate (9) is movably inserted into the gate (10). The side wall of the gate (10) is provided with an inner groove (11), and the inner groove (11) is slidably connected to the side wall of the gate (9). Several pairs of baffles (19) are installed on the overflow outlet (18). The baffles (19) are staggered and are used to block debris.

5. A super energy storage system for hydropower generation according to claim 4, characterized in that, A crossbeam (12) is installed on the side wall of the gate (10). A drive motor (13) is installed on the crossbeam (12). The output end of the drive motor (13) moves through the crossbeam (12). A lead screw shaft (14) is installed at the output end of the drive motor (13). The lead screw shaft (14) is screwed into the gate (9). A connecting frame (15) is installed on the side wall of the gate (9). A limit rod (16) is installed inside the connecting frame (15). Limit seats (17) are installed at both ends of the limit rod (16). The side wall of the limit seat (17) is installed on the side wall of the energy storage reservoir (2).

6. A super energy storage system for hydropower generation according to claim 1, characterized in that, Several pairs of partitions (21) are installed alternately on the connection port (6). A countersunk groove (22) is installed on the partition (21). The side wall of the cover plate (23) is overlapped on the countersunk groove (22). A rocker arm (24) is installed at the rotation center of the cover plate (23). A slide rod (25) is installed on the rocker arm (24). The rocker arm (24) is in an inclined state.

7. A super energy storage system for hydropower generation according to claim 6, characterized in that, The top rod (28) is equipped with a synchronization plate (27) at its end. The synchronization plate (27) is placed on the inner side wall of the protective cover (20). Several sets of push plates (26) are installed at the bottom of the synchronization plate (27). Each set of push plates (26) has a gap, and the gap is slidably connected to the slide rod (25).

8. A super energy storage system for hydropower generation according to claim 1, characterized in that, The top rod (28) is equipped with a synchronization frame (29) on its side wall. Several pairs of sealing blocks (30) are installed on the synchronization frame (29). The sealing blocks (30) are movably inserted into the side wall of the protective cover (20). The end of the sealing block (30) is provided with a conical surface (31). When the cover plate (23) rotates to open the connection port (6), the conical surface (31) contacts the protective cover (20), thereby creating a gap. The gap facilitates water flow into the protective cover (20) along the gap, and the synchronous protective cover (20) flows towards the connection port (6).

9. A super energy storage system for hydropower generation according to claim 1, characterized in that, The energy storage reservoir (2) is equipped with a reset cover (32) on its side wall. A pressure plate (37) is slidably arranged inside the reset cover (32). The top of the pressure plate (37) is connected to the reset rod (33), and the bottom of the pressure plate (37) is connected to the top rod (28). The reset rod (33) and the top rod (28) are movably inserted into the reset cover (32). A reset spring (38) is sleeved on the top rod (28) located on the inner side wall of the reset cover (32). One end of the reset spring (38) is clamped on the pressure plate (37), and the other end of the reset spring (38) is clamped on the side wall of the reset cover (32).

10. A super energy storage system for hydropower generation according to claim 1, characterized in that, A sleeve plate (35) is installed on the back of the gate (9). A through hole (36) is installed at the end of the sleeve plate (35). The through hole (36) is movably connected to the reset rod (33). The diameter of the through hole (36) is larger than the diameter of the reset rod (33), and the diameter of the through hole (36) is smaller than the diameter of the limit plate (34).

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