Tidal power storage pressurization hydroelectric generation system

The tidal energy storage and pressure-enhanced hydroelectric system addresses inefficiencies in tidal power generation by integrating wave and tidal energy capture mechanisms to enhance turbine rotation and efficiency, achieving prolonged and cost-effective electricity production.

CN120312474AInactive Publication Date: 2025-07-15LIMU TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510662451.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2025-07-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing tidal hydropower system is limited by the difference in tidal flow rate and natural water level, resulting in low impeller rotation speed and low power generation efficiency.

Method used

The linkage design of wavy pressure accumulator plate and impact block is adopted. Through the combination of tidal energy and wave energy, the synergistic effect of the pressure accumulator and impact block is used to achieve stable tidal energy pressure accumulator and wave energy intermittently strengthen power generation and enhance power generation efficiency.

Benefits of technology

It improves hydropower efficiency and power generation time, realizes adaptive tidal and wave dual energy utilization, reduces additional power demand, and has high stability and wear fault tolerance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120312474A_ABST
    Figure CN120312474A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of hydroelectric generation, in particular to a tidal power storage pressurization hydroelectric generation system which is internally provided with a machine body, two lifting connecting frames capable of moving up and down are arranged on the upper end face of the machine body in a bilateral symmetry mode, a mounting top plate is fixedly arranged in the middle of the upper end face of the machine body, and two wave pressure storage plates capable of moving left and right are arranged above the left side and the right side of the machine body; the wave pressure storage plate can be influenced by tidal energy and wave energy and can continuously and slowly move towards one side close to the power generation impeller under the impact of external water flow, so that a pressure storage connecting column starts to move towards one side of the center, and a force storage spring and an impact block are extruded; and the impact block can quickly move towards one side close to the power generation impeller under the resilience force of the force storage spring after being in contact and limited, so that water pressure impact is generated, the power generation impeller is accelerated to rotate, and the hydroelectric power generation efficiency and the power generation time of the hydroelectric power generation device can be effectively improved and prolonged at lower cost. And meanwhile, the self-adaptive tide and wave dual-energy utilization advantage is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of hydroelectric power generation, and particularly to a tidal energy storage and pressurized hydroelectric power generation system. Background Art

[0002] The kinetic energy and potential energy possessed by seawater during movement are collectively referred to as tidal energy. Tides are a renewable energy source with extremely large reserves, inexhaustible, pollution-free, and do not require mining and transportation.

[0003] When performing tidal hydroelectric power generation work, it is limited by tidal flow velocity and natural water level differences (such as dams). However, in tidal scenarios, the natural tidal range is usually only a few meters, and directly driving a water turbine has low efficiency, and there are often problems with low impeller rotation speed during power generation. Summary of the Invention

[0004] The purpose of the present invention is to provide a tidal energy storage and pressurized hydroelectric power generation system to overcome the above-mentioned defects in the prior art.

[0005] According to a tidal energy storage and pressurized hydroelectric power generation system of the present invention, it includes a body. On the upper end surface of the body, there are two lift connection frames that can move up and down symmetrically on the left and right. In the middle of the upper end surface of the body, there is a fixed installation top plate. Above the left and right sides of the body, there are two wave storage pressure plates that can move left and right. In the front and back of the upper end surface of the body, there are two reciprocating lift frames that can move up and down symmetrically. In the front and back of the upper end surface of the body, there are four fixed limit boxes symmetrically; There is a water passing cavity in the body. In the water passing cavity, a power generation impeller is rotatably provided. On the left and right sides of the upper wall of the water passing cavity, six energy storage cylinders are fixedly provided. In the energy storage cylinder, there is a pressure storage working cavity filled with air. One end surface of the energy storage cylinder close to the power generation impeller is fixedly provided with a pressurized injection port. In the reciprocating lift frame, there is a sliding cavity that communicates front and back. The front and back end surfaces of the lift connection frame penetrate through the sliding cavity and are slidably connected to the sliding cavity. In the middle of the sliding cavity, there is a lift impact block fixedly provided. On the front and back end surfaces of the body, there is a lift cam rotatably provided. The lift cam corresponds vertically to the lift impact block and can drive the lift impact block to move upward.

[0006] In some embodiments, in the middle of the upper wall of the water passing cavity, there is a hydraulic generator fixedly provided, and the lower end surface of the hydraulic generator is power-connected to the power generation impeller.

[0007] In some embodiments, a stop chamber is provided in the pressurized injection port, and a stop valve plate that can move up and down is provided in the stop chamber, and the stop valve plate can control the passage between the pressure storage working chamber, the stop chamber and the water passage chamber, and the upper end surface of the stop valve plate passes through the upper wall of the stop chamber and is fixedly connected to the lower end surface of the lifting connecting frame, and a pressure detector is fixedly provided on the upper wall of the pressure storage working chamber, and the pressure detector can detect the pressure in the pressure storage working chamber.

[0008] In some embodiments, a pressure storage connecting column that can move left and right is provided in the pressure storage working chamber, and an impact block that can slide left and right is provided on the side of the pressure storage connecting column close to the water passing chamber. Water is stored in the pressure storage working chamber and the pass-stop chamber located in the area of the impact block close to the power generation impeller. A reset spring is fixedly connected between the end face of the impact block close to the center and the wall of the pass-stop chamber away from the power generation impeller. The end face of the pressure storage connecting column away from the power generation impeller is fixedly connected to the end face of the wave pressure storage plate on the same side close to the center. A force storage spring is fixedly connected between the end face of the pressure storage connecting column close to the power generation impeller and the end face of the impact block away from the power generation impeller.

[0009] In some embodiments, two lifting and reset cavities are symmetrically provided on the front and rear of the lower end surface of the mounting top plate, the upper end surface of the lifting and reset cavity extends into the lifting and reset cavity on the same side and is slidably connected to the side wall of the lifting and reset cavity, a lifting spring is fixedly connected between the upper end surface of the lifting and reset block and the upper wall of the lifting and reset cavity, two cam motors are fixedly provided on the front and rear end surfaces of the body, and the lifting cam is dynamically connected to the cam motor on the end surface away from the body.

[0010] In some embodiments, the wave pressure accumulator plate is symmetrically and fixedly provided with two buffer inner boxes above the end surface of one side of the body, a pawl cavity is provided in the limit box, a pawl moving plate that can slide left and right is provided in the pawl cavity, and three limit pawls are rotatably provided on the upper end surface of the pawl moving plate, a pawl spring is fixedly connected between the lower side of the outer circular surface of the limit pawl and the upper end surface of the pawl moving plate, a ratchet plate that can move up and down is provided on the upper wall of the pawl cavity, and the lower end surface of the ratchet plate is a ratchet surface that can cooperate with the limit pawl.

[0011] In some embodiments, a buffer inner cavity is provided in the buffer inner box, and the end surface of the pawl moving plate on the side away from the center extends into the buffer inner cavity and a buffer spring is fixedly connected to a side wall of the buffer inner cavity away from the center.

[0012] In some embodiments, the upper end surface of the lifting connection frame is symmetrical in front and back and is fixedly provided with two limiting top frames, a lifting interval cavity connected to the left and right is provided in the limiting top frame, and two locking connection frames that can move up and down are symmetrically provided on the upper side of the body, and the lower end surface of the locking connection frame is fixedly connected to the two upper end surfaces of the limiting top frames on the same side, and the right end surface of the locking connection frame on the left side is symmetrical in front and back and is fixedly provided with two locking connection shafts, and the right end surface of the locking connection shaft passes through the lifting interval cavity and is fixedly connected to the left end surface of the locking connection frame on the right side.

[0013] In some embodiments, a control panel is fixedly provided on the upper end surface of the machine body, and the control panel can control the start and stop of all motors and devices of the present invention.

[0014] Compared with the prior art, the advantages of the present invention are: The present invention is characterized in that the wave pressure storage plate is affected by tidal energy and wave energy, and under the impact of external water flow, it will continue to move slowly toward the side close to the power generation impeller, so that the pressure storage connecting column begins to move toward the center side, so that the storage spring and the impact block are squeezed, and the impact block will move quickly toward the side close to the power generation impeller under the rebound force of the storage spring after contact limiting, thereby generating a water pressure shock, and the pushed water will be quickly blown to the side of the power generation impeller, so that the power generation impeller accelerates its rotation, thereby effectively improving the water conservancy power generation efficiency and power generation time of the present invention at a relatively low cost.

[0015] The present invention has the advantages of dual energy utilization of adaptive tides and waves, can automatically capture tidal unidirectional water flow and wave reciprocating motion, and through the linkage design of the pressure storage connecting column and the impact block, realizes the coordinated power generation of stable tidal energy storage and intermittent intensification of wave energy, thereby extending the daily effective power generation time.

[0016] The movement of the wave pressure storage plate of the present invention will also drive the pawl moving plate to move toward the depth of the pawl cavity. Since the ratchet plate is at the lowest point, the lower end surface of the ratchet plate will contact the upper end surface of the limiting pawl and form a ratchet pawl cooperation, which can limit the pawl moving plate and the wave pressure storage plate, and prevent the wave pressure storage plate from rebounding to its original position under the influence of the rebound force of the force storage spring. It can have relatively reliable stability and will not have the problem of abnormal rebound leading to the failure of pressurization.

[0017] Under the reset work of the lifting spring, the working component of the present invention can be automatically reset to the initial position. At this time, the on-off valve plate can block the on-off cavity, so that the pressure accumulation working cavity and the water passing cavity are no longer connected. The limiting pawl and the ratchet plate achieve the cooperation of ratchet and pawl again to perform one-way limiting work on the pawl moving plate. At this time, the next energy storage work can be started, enabling the present invention to have the function of low additional power demand, and being able to greatly improve the power generation efficiency of hydropower with a small electricity consumption cost. The buffer spring can perform buffer protection work on the pawl moving plate and the wave pressure accumulation plate, and give the device a certain wear tolerance range, reducing the burden during the rebound and impact of the wave pressure accumulation plate. The automatic reset work of the present invention enables the present invention to stably perform the hydraulic power generation energy storage and pressurization work for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view of the present invention; Figure 2 is the top view of the present invention; Figure 3 is the left view of the present invention; Figure 4 is the overall structural schematic diagram of a tidal energy storage and pressurization hydropower generation system of the present invention; Figure 5 is the present invention Figure 4 the structural schematic diagram of the energy storage cylinder 14 component in; Figure 6 is the present invention Figure 5 the structural schematic diagram in the A-A direction in; Figure 7 is the present invention Figure 5 the structural schematic diagram of the limiting box 15 component in; Figure 8 is the present invention Figure 5 the structural schematic diagram of the pressure accumulation working cavity 48 component in.

[0019] In the figure: 11. Body; 12. Wave pressure storage plate; 13. Pressure storage connection column; 14. Pressure storage cylinder; 15. Limit box; 16. Locking connection shaft; 17. Locking connection frame; 18. Limit top frame; 19. Installation top plate; 20. Reciprocating lifting frame; 21. Lifting impact block; 22. Lifting cam; 23. Pawl moving plate; 24. Limit pawl; 25. Sliding cavity; 26. Control panel; 27. Buffer inner box; 28. Ratchet plate; 29. Power generation impeller; 30. Water passage cavity; 31. Pressurized injection port; 32. On-off cavity; 33. On-off valve plate; 34. Lifting connection frame; 35. Pressure storage spring; 36. Cam motor; 37. Hydro generator; 38. Lifting interval cavity; 39. Lifting reset cavity; 40. Lifting spring; 41. Buffer spring; 42. Pawl spring; 43. Pawl cavity; 44. Pressure detector; 45. Impact block; 46. Buffer inner cavity; 47. Reset spring; 48. Pressure storage working cavity. Detailed implementation mode

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1 Refer to Figures 1-8 , which is the first embodiment of the present invention. This embodiment provides an embodiment of a tidal energy storage and pressurized hydroelectric power generation system, including a body 11. On the upper end surface of the body 11, there are two symmetrically arranged lifting connection frames 34 that can move up and down on the left and right. In the middle of the upper end surface of the body 11, there is a fixed installation top plate 19. Above the left and right sides of the body 11, there are two wave pressure storage plates 12 that can move left and right. In the front and rear symmetry of the upper end surface of the body 11, there are two reciprocating lifting frames 20 that can move up and down. In the front and rear symmetry and fixed on the upper end surface of the body 11, there are four limit boxes 15. A water passage chamber 30 is provided in the machine body 11, and a power generation impeller 29 is rotatably provided in the water passage chamber 30. Six power storage cylinders 14 are fixedly provided on the left and right sides of the upper wall of the water passage chamber 30. A pressure storage working chamber 48 is provided in the power storage cylinder 14, and air is injected into the pressure storage working chamber 48. A pressurized injection port 31 is fixedly provided on the end face of the power storage cylinder 14 close to the power generation impeller 29. A sliding chamber 25 connected front and back is provided in the reciprocating lifting frame 20. The front and rear end faces of the lifting connecting frame 34 pass through the sliding chamber 25 and are slidably connected to the sliding chamber 25. A lifting impact block 21 is fixedly provided in the middle of the sliding chamber 25. The lifting impact block 21 is made of impact-resistant material. Lifting cams 22 are rotatably provided on the front and rear end faces of the machine body 11. The lifting cams 22 are vertically corresponding to the lifting impact block 21 and can drive the lifting impact block 21 to move upward.

[0022] A hydroelectric generator 37 is fixedly provided at the middle of the upper wall of the water passage chamber 30 . The lower end surface of the hydroelectric generator 37 is dynamically connected to the power generation impeller 29 . The hydroelectric generator 37 can generate electricity through the rotation of the power generation impeller 29 .

[0023] A stop chamber 32 is provided in the pressurized injection port 31, and a stop valve plate 33 which can move up and down is provided in the stop chamber 32. The stop valve plate 33 can control the flow of the pressure storage working chamber 48, the stop chamber 32 and the water flow chamber 30. The upper end surface of the stop valve plate 33 passes through the upper wall of the stop chamber 32 and is fixedly connected to the lower end surface of the lifting connecting frame 34. A pressure detector 44 is fixedly provided on the upper wall of the pressure storage working chamber 48. The pressure detector 44 can detect the pressure in the pressure storage working chamber 48.

[0024] The pressure storage working chamber 48 is provided with a pressure storage connecting column 13 that can move left and right. The pressure storage connecting column 13 is provided with an impact block 45 that can slide left and right near the water passage chamber 30. Water is stored in the pressure storage working chamber 48 and the pass-stop chamber 32 located in the area of the impact block 45 near the power generation impeller 29. A return spring 47 is fixedly connected between the end surface of the impact block 45 near the center and the side wall of the pass-stop chamber 32 away from the power generation impeller 29. The end surface of the pressure storage connecting column 13 away from the power generation impeller 29 It is fixedly connected to the end face of the wave pressure storage plate 12 on the same side close to the center, and a force storage spring 35 is fixedly connected between the end face of the pressure storage connecting column 13 close to the power generation impeller 29 and the end face of the impact block 45 away from the power generation impeller 29. When hydropower generation is working, the wave pressure storage plate 12 will be continuously affected by external waves or tides and begin to move toward the center, thereby driving the pressure storage connecting column 13 to move toward the center. Since seawater is difficult to compress, the impact block 45 will be compressed and the force storage spring 35 will begin to shrink.

[0025] Two lifting and reset cavities 39 are symmetrically arranged at the front and rear of the lower end face of the installation top plate 19. The upper end face of the lifting impact block 21 extends into the lifting and reset cavity 39 on the same side and is slidably connected to the side wall of the lifting and reset cavity 39. A lifting spring 40 is fixedly connected between the upper end face of the lifting impact block 21 and the upper wall of the lifting and reset cavity 39. Two cam motors 36 are fixedly arranged on the front and rear end faces of the machine body 11. The end face of the lifting cam 22 away from the machine body 11 is power-connected to the cam motor 36. When the cam motor 36 is started, the lifting cam 22 rotates, driving the lifting impact block 21 to start moving upward, and realizing reciprocating up and down movement under the resilience of the lifting spring 40, thereby driving the lifting connecting frame 34 to move up and down and slide in the sliding cavity 25, and further driving the on-off valve plate 33 to move upward in the on-off cavity 32. When the on-off valve plate 33 moves to the upper side, the on-off cavity 32, the pressure accumulation working cavity 48 and the water passing cavity 30 are communicated. At this time, the impact block 45 will quickly move toward the side close to the power generation impeller 29 under the resilience of the energy storage spring 35, generating a water pressure impact. The pushed water will quickly blow to the side of the power generation impeller 29, causing the power generation impeller 29 to rotate at an accelerated speed.

[0026] Embodiment 2 Referring to Figures 1-8 , in order to prevent the wave pressure accumulation plate 12 and the pressure accumulation connecting column 13 from rebounding during energy storage and getting stuck during unloading, a pawl moving plate 23 and a ratchet plate 28 are provided; Two buffer inner boxes 27 are symmetrically and fixedly arranged above the end face of the wave pressure accumulation plate 12 close to the machine body 11. A pawl cavity 43 is arranged in the limit box 15. A pawl moving plate 23 that can slide left and right is arranged in the pawl cavity 43. Three limit pawls 24 are rotatably arranged on the upper end face of the pawl moving plate 23. A pawl spring 42 is fixedly connected between the lower side of the outer circumferential surface of the limit pawl 24 and the upper end face of the pawl moving plate 23. A ratchet plate 28 that can move up and down is arranged on the upper wall of the pawl cavity 43. The lower end face of the ratchet plate 28 is a ratchet surface that can cooperate with the limit pawl 24, which can realize the function of preventing rebound.

[0027] A buffer inner cavity 46 is arranged in the buffer inner box 27. The end face of the pawl moving plate 23 away from the center extends into the buffer inner cavity 46 and is fixedly connected to the side wall of the buffer inner cavity 46 away from the center by a buffer spring 41, and the buffer spring 41 can play a buffering role.

[0028] The upper end surface of the lifting connection frame 34 is symmetrical in front and back and fixed with two limit top frames 18, and the limit top frame 18 is provided with a lifting interval cavity 38 connected to the left and right. The upper side of the body 11 is symmetrically provided with two locking connection frames 17 that can move up and down. The lower end surface of the locking connection frame 17 is fixedly connected to the upper end surfaces of the two limit top frames 18 on the same side. The right end surface of the locking connection frame 17 on the left side is symmetrical in front and back and fixed with two locking connection shafts 16. The right end surface of the locking connection shaft 16 passes through the lifting interval cavity 38. 8 and is fixedly connected to the left end face of the locking connecting frame 17 on the right side. When the lifting connecting frame 34 is lifted or lowered, it will drive the limiting top frame 18 to move upward together until the lower wall of the lifting spacing cavity 38 contacts the lower side of the outer circumferential surface of the locking connecting shaft 16, and then drive the locking connecting shaft 16 together with the locking connecting frame 17 and the ratchet plate 28 to move upward, so that the ratchet plate 28 and the limiting pawl 24 no longer realize the ratchet pawl cooperation, so that the pressure storage connecting column 13 and the wave pressure storage plate 12 can start to rebound.

[0029] A control panel 26 is fixedly disposed on the upper end surface of the machine body 11 , and the control panel 26 can control the start and stop of all motors and devices of the present invention.

[0030] Under the reset operation of the lifting spring 40 of the present invention, the lifting impact block 21 together with the reciprocating lifting frame 20, the locking connecting shaft 16, the locking connecting frame 17, the limiting top frame 18, the lifting connecting frame 34, the stop chamber 32 and the ratchet plate 28 will be driven to descend and gradually reset to the initial position. At this time, the stop valve plate 33 can block the stop chamber 32, so that the pressure storage working chamber 48 and the water passing chamber 30 are no longer connected. The limiting pawl 24 and the ratchet plate 28 realize the ratchet pawl cooperation again, and the pawl moving plate 23 is limited in one direction. At this time, the next power storage work can be started, and the buffer spring 41 can perform buffer protection work on the pawl moving plate 23 and the wave pressure storage plate 12, and give the device a certain wear tolerance range, reduce the burden of the wave pressure storage plate 12 during rebound and impact, and the automatic reset work of the present invention can enable the present invention to perform hydropower generation power storage and pressurization work stably for a long time.

[0031] Specific workflow: When performing tidal hydroelectric power generation, the machine body 11 can be installed at the tidal connection port of the power station, and the wave pressure storage plate 12 is placed at the same height as the horizontal plane. After the wave pressure storage plates 12 on both sides are installed, they are in the initial position, which is far away from the machine body 11. At this time, the lifting spring 40, the return spring 47 and the pressure storage working chamber 48 are in a normal state. When the external tidal water level changes, the external water will flow from one side opening of the water passage cavity 30 to the other side opening. At this time, the seawater flow around the body 11 is unidirectional, which will drive the power generation impeller 29 to start rotating, so that the hydraulic generator 37 starts to generate electricity hydraulically.

[0032] When generating electricity, the wave pressure accumulator plate 12 on the water inlet side will be continuously affected by the external tidal energy and wave energy. Under the impact of the external water flow, it will continuously move slowly towards the side close to the power generation impeller 29, so that the pressure accumulation connecting column 13 starts to move towards the center side, causing the energy storage spring 35 and the impact block 45 to be squeezed. The air pressure between the impact block 45 and the pressure accumulation connecting column 13 starts to increase, and the energy storage spring 35 starts to contract. Since there is seawater stored in the center side of the impact block 45 and in the on-off cavity 32, and seawater is almost incompressible under normal conditions, the impact block 45 will not slide towards the center side temporarily, and the return spring 47 will not be compressed by a large amount. At the same time, the movement of the wave pressure accumulator plate 12 will also drive the pawl moving plate 23 to move deeper into the pawl cavity 43. Since the ratchet plate 28 is at the lowest position, the lower end surface of the ratchet plate 28 will contact the upper end surface of the limit pawl 24 to form a ratchet and pawl cooperation, which can limit the pawl moving plate 23 and the wave pressure accumulator plate 12 to prevent the wave pressure accumulator plate 12 from rebounding to its original position under the influence of the resilience of the energy storage spring 35.

[0033] When the pressure detector 44 detects that the air pressure in the pressure accumulation working cavity 48 is relatively high, it will control the cam motor 36 to start. The start of the cam motor 36 drives the lifting cam 22 to rotate, thereby driving the lifting impact block 21 to start moving upward, and realizing up and down reciprocating motion under the resilience of the lifting spring 40, thereby driving the lifting connecting frame 34 to move up and down and slide in the sliding cavity 25, and further driving the on-off valve plate 33 to move upward in the on-off cavity 32. When the on-off valve plate 33 moves to the upper side, the on-off cavity 32, the pressure accumulation working cavity 48 and the water passage cavity 30 will be connected. At this time, the impact block 45 will move quickly towards the side close to the power generation impeller 29 under the resilience of the energy storage spring 35, thereby generating a water pressure impact. The pushed water will be quickly blown to the side of the power generation impeller 29, so that the power generation impeller 29 rotates at an accelerated speed, so that the hydraulic power generation efficiency and power generation time of the present invention can be effectively improved at a lower cost.

[0034] When the impact block 45 generates an impact, the locking connecting shaft 16 will be located in the middle of the lifting interval cavity 38. As the reciprocating lifting frame 20 and the lifting impact block 21 rise, it will drive the limit top frame 18 to move upward together until the lower wall of the lifting interval cavity 38 contacts the lower side of the outer circular surface of the locking connecting shaft 16, and then it will drive the locking connecting shaft 16 together with the locking connecting frame 17 and the ratchet plate 28 to move upward, so that the ratchet plate 28 and the limit pawl 24 no longer achieve the ratchet and pawl cooperation, enabling the pressure accumulation connecting column 13 and the wave pressure accumulation plate 12 to start rebounding. At this time, after the impact work, the impact block 45 will return to the initial position under the compression and rebound of the return spring 47. After the impact block 45 returns to its original position, due to the limiting contact between the limit pawl 24 and the ratchet plate 28 on the pawl moving plate 23, the pressure accumulation connecting column 13 together with the wave pressure accumulation plate 12 will be pushed to the initial position. When the reciprocating lifting frame 20 moves to the uppermost position and the long end of the lifting cam 22 no longer contacts the lower end surface of the lifting impact block 21, under the reset work of the lifting spring 40, it will drive the lifting impact block 21 together with the reciprocating lifting frame 20, the locking connecting shaft 16, the locking connecting frame 17, the limit top frame 18, the lifting connecting frame 34, the through-stop cavity 32 and the ratchet plate 28 to descend and gradually return to the initial position. At this time, the through-stop valve plate 33 can block the through-stop cavity 32, so that the pressure accumulation working cavity 48 and the water passing cavity 30 are no longer connected, and the limit pawl 24 and the ratchet plate 28 achieve the ratchet and pawl cooperation again to perform the one-way limiting work on the pawl moving plate 23. At this time, the next pressure accumulation work can be started. The buffer spring 41 can perform buffer protection on the pawl moving plate 23 and the wave pressure accumulation plate 12, and give the device a certain wear tolerance range, reducing the burden on the wave pressure accumulation plate 12 during rebounding and impact. The automatic reset work of the present invention enables the present invention to stably perform the hydraulic power generation pressure accumulation work for a long time.

[0035] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A tidal energy storage and pressurized hydropower generation system, comprising a body (11), characterized in that: On the upper end surface of the machine body (11), there are two lifting connection frames (34) that can move up and down symmetrically on the left and right. In the middle of the upper end surface of the machine body (11), there is a fixed installation top plate (19). Above the left and right sides of the machine body (11), there are two wave pressure accumulator plates (12) that can move left and right. In the front and back of the upper end surface of the machine body (11), there are two reciprocating lifting frames (20) that can move up and down. On the front and back of the upper end surface of the machine body (11), there are four limit boxes (15) fixed symmetrically. Inside the machine body (11), there is a water passing cavity (30). Inside the water passing cavity (30), there is a rotating power generation impeller (29). On the left and right sides of the upper wall of the water passing cavity (30), there are six energy storage cylinders (14) fixed. Inside the energy storage cylinder (14), there is a pressure accumulation working cavity (48). On the end face of the energy storage cylinder (14) close to the power generation impeller (29), there is a pressure injection port (31). Inside the reciprocating lifting frame (20), there is a sliding cavity (25) that communicates front and back. The front and back end faces of the lifting connection frame (34) penetrate through the sliding cavity (25) and are slidably connected to the sliding cavity (25). In the middle of the sliding cavity (25), there is a lifting impact block (21). On the front and back end faces of the machine body (11), there is a rotating lifting cam (22). The lifting cam (22) is vertically corresponding to the lifting impact block (21).

2. The tidal energy storage and pressurized hydroelectric power generation system according to claim 1, characterized in that: In the middle of the upper wall of the water passing cavity (30), there is a hydraulic generator (37) fixed. The lower end face of the hydraulic generator (37) is power-connected to the power generation impeller (29).

3. A tidal energy storage pressurized hydroelectric power generation system according to claim 1, characterized in that: Inside the pressure injection port (31), there is a through-stop cavity (32). Inside the through-stop cavity (32), there is a through-stop valve plate (33) that can move up and down. The upper end face of the through-stop valve plate (33) penetrates through the upper wall of the through-stop cavity (32) and is fixedly connected to the lower end face of the lifting connection frame (34). On the upper wall of the pressure accumulation working cavity (48), there is a pressure detector (44) fixed.

4. The tidal energy storage and pressurized hydroelectric power generation system according to claim 3, characterized in that: Inside the pressure accumulation working cavity (48), there is a pressure accumulation connection column (13) that can move left and right. On the side of the pressure accumulation connection column (13) close to the water passing cavity (30), there is an impact block (45) that can slide left and right. Between the end face of the impact block (45) close to the center and the wall of the through-stop cavity (32) far from the power generation impeller (29), there is a return spring (47) fixedly connected. The end face of the pressure accumulation connection column (13) far from the power generation impeller (29) is fixedly connected to the end face of the same-side wave pressure accumulator plate (12) close to the center. Between the end face of the pressure accumulation connection column (13) close to the power generation impeller (29) and the end face of the impact block (45) far from the power generation impeller (29), there is a power accumulation spring (35) fixedly connected.

5. A tidal energy storage and pressurized hydroelectric power generation system according to claim 1, characterized in that: There are two lifting and reset cavities (39) symmetrically arranged before and after on the lower end surface of the installation top plate (19). The upper end surface of the lifting impact block (21) extends into the lifting and reset cavity (39) on the same side and is slidably connected to the side wall of the lifting and reset cavity (39). A lifting spring (40) is fixedly connected between the upper end surface of the lifting impact block (21) and the upper wall of the lifting and reset cavity (39). Two cam motors (36) are fixedly arranged on the front and rear end surfaces of the machine body (11). The end surface on the side away from the machine body (11) of the lifting cam (22) is power-connected to the cam motor (36).

6. The tidal energy storage and pressurized hydroelectric power generation system according to claim 1, wherein: On the upper side of the end surface of the wave storage pressing plate (12) close to the machine body (11), two buffer inner boxes (27) are symmetrically and fixedly arranged before and after. There is a ratchet pawl cavity (43) in the limit box (15). A ratchet pawl moving plate (23) that can slide left and right is arranged in the ratchet pawl cavity (43). Three limit ratchet pawls (24) are rotatably arranged on the upper end surface of the ratchet pawl moving plate (23). A ratchet pawl spring (42) is fixedly connected between the lower side of the outer circumferential surface of the limit ratchet pawl (24) and the upper end surface of the ratchet pawl moving plate (23). A ratchet tooth plate (28) that can move up and down is arranged on the upper wall of the ratchet pawl cavity (43). The lower end surface of the ratchet tooth plate (28) is a ratchet tooth surface.

7. A tidal energy storage and pressurized hydroelectric power generation system according to claim 6, characterized in that: There is a buffer inner cavity (46) in the buffer inner box (27). The end surface on the side away from the center of the ratchet pawl moving plate (23) extends into the buffer inner cavity (46) and is fixedly connected to the side wall on the side away from the center of the buffer inner cavity (46) by a buffer spring (41).

8. A tidal energy storage and pressurized hydroelectric power generation system according to claim 1, characterized in that: On the upper end surface of the lifting connection frame (34), two limit top frames (18) are symmetrically and fixedly arranged before and after. There is a left-right communicating lifting interval cavity (38) in the limit top frame (18). Two locking connection frames (17) that can move up and down are symmetrically arranged on the upper side of the machine body (11). The lower end surface of the locking connection frame (17) is fixedly connected to the upper end surfaces of the two limit top frames (18) on the same side. Two locking connection shafts (16) are symmetrically and fixedly arranged before and after on the right end surface of the left locking connection frame (17). The right end surface of the locking connection shaft (16) penetrates through the lifting interval cavity (38) and is fixedly connected to the left end surface of the right locking connection frame (17).

9. The tidal energy storage and pressurized hydroelectric power generation system according to claim 1, characterized in that: A control panel (26) is fixedly arranged on the upper end surface of the machine body (11).