Power generation system utilizing tidal energy

Abstract

The invention relates to a power generation system utilizing tidal energy, and belongs to the technical field of tidal energy utilization. Comprising a water receiving tank, a water storage tank, a watertight bin, positioning screws and foundation piles. A water storage tank with an open upper end is fixed above the water receiving tank, the water storage tank and the water receiving tank are communicated and connected through a sewer pipe, and water flow in the sewer pipe drives the impeller to rotate. A generator set is arranged in the watertight bin, and an input shaft of the generator set is connected with a rotating shaft of the impeller. The foundation pile is arranged below the water receiving tank, the foundation pile is connected with the water receiving tank through a positioning screw rod, and a drainage channel of the water receiving tank is provided with a drainage valve. According to the tidal power generation system, the tidal power generation system is miniaturized, modularized and movable, impounding reservoirs and damming are not needed, investment is small, and the tidal power generation system is more suitable for power utilization requirements of coastal fishing grounds.

Description

Technical Field

[0001] This application belongs to the technical field of tidal energy utilization, and specifically relates to a power generation system that utilizes tidal energy. Background Art

[0002] Tidal energy power generation technology is a renewable energy technology that utilizes the water level difference or tidal current kinetic energy generated by the periodic rise and fall of seawater, and converts it into electrical energy through devices such as water turbines. Most of them form a reservoir by building a dam in a bay or estuary, and use the tidal level difference to drive the water turbine. It belongs to large-scale marine energy power generation facilities, and the existing technology cannot be applied to the power supply system of marine fishing grounds.

[0003] However, most marine fishing grounds are built offshore. In order to avoid the impact of human activities on fish, even coastal fishing grounds are built more than 5 nautical miles away from the coastline. During the operation of coastal fishing grounds, since the number of fish per unit area is greater than that in the natural environment, oxygenation machines are required for oxygenation, and feeding machines are also required for automated feeding of feed. Some other equipment also requires electrical energy to drive.

[0004] The traditional power supply method for coastal fishing grounds is to extend the port power grid to the fishing ground through submarine cables to provide stable power for aquaculture equipment, cold storage, etc., and use diesel generator sets as emergency backups. This power supply structure has a high upfront investment, and during the later operation process, the electricity cost accounts for a large proportion of the cost. Summary of the Invention

[0005] The technical problem to be solved by this application is: to overcome the deficiencies of the existing technology and provide a power generation system that utilizes tidal energy. This application miniaturizes, modularizes, and makes the tidal energy power generation system movable. There is no need to build a reservoir and a dam, with a small investment, and it is more suitable for the electricity demand of coastal fishing grounds.

[0006] The technical solution adopted by this application to solve the problems existing in the existing technology is: A power generation system that utilizes tidal energy, including a water receiving tank, a water storage tank, a watertight compartment, positioning screws, and foundation piles.

[0007] The water storage tank with an open upper end is fixed above the water receiving tank. The water storage tank and the water receiving tank are connected through a downpipe. The water flow inside the downpipe drives the impeller to rotate.

[0008] A generator set is arranged inside the watertight compartment, and the input shaft of the generator set is connected to the rotating shaft of the impeller.

[0009] The foundation pile is arranged below the water receiving tank. The foundation pile is connected to the water receiving tank through a positioning screw. A drain valve is provided in the drainage channel of the water receiving tank.

[0010] Preferably, two foundation piles are arranged below the water receiving tank, and at least two positioning screws arranged at intervals are provided on each foundation pile.

[0011] An end portion in the length direction of the water receiving tank protrudes with a first mounting plate, and a mounting hole is provided on the first mounting plate. The mounting hole is sleeved on the positioning screw, and nuts threadedly connected to the positioning screw are abutted on both the upper and lower sides of the first mounting plate.

[0012] Preferably, a driving cavity is connected through the water discharge pipe. The axis of the driving cavity is perpendicular to and spaced from the water discharge pipe, and the impeller is rotatably arranged inside the driving cavity.

[0013] Preferably, the cross-sectional shape of the drainage channel of the water receiving tank is T-shaped, and the drainage valve includes a T-shaped slider. The height of the T-shaped slider is greater than or equal to the height of the drainage channel, and the T-shaped slider is slidably arranged inside the drainage channel.

[0014] An upper baffle is provided at the top of the drainage channel. An upper extension plate is fixed to the outer side of the top of the T-shaped slider, and a first floating plate is provided on the upper extension plate.

[0015] Preferably, a drainage control assembly is provided inside the water storage tank. When the liquid level inside the water storage tank is higher than the threshold value, the drainage control assembly controls the water storage tank to drain water into the water discharge pipe.

[0016] Preferably, the water discharge pipe is arranged below the water storage tank, and the through port between the water discharge pipe and the water storage tank is located on the bottom surface of the water storage tank.

[0017] Preferably, the drainage control assembly includes a valve core arranged vertically. The top of the valve core is connected with a second floating plate. In the free state, the valve core penetrates into the water discharge pipe.

[0018] Preferably, a sliding sleeve extends outward from the top of the valve core, and a sliding rod arranged vertically is fixed to the bottom surface of the water storage tank. The sliding sleeve is sleeved on the sliding rod.

[0019] Preferably, an energy storage assembly is connected to the positioning screw.

[0020] Preferably, the energy storage assembly includes a housing. A plurality of partition plates are provided inside the housing. The partition plates divide the interior of the housing into an energy storage unit placement cavity and a cooling isolation cavity arranged at intervals. Energy storage units are provided inside the energy storage unit placement cavity, and a plurality of through holes penetrating up and down are provided on the housing at the cooling isolation cavity.

[0021] Compared with the prior art, the beneficial effects of the present application are as follows: (1)The power generation assembly, energy storage assembly, and foundation piles have achieved modular and miniaturized designs, which are more suitable for the power supply of coastal fishing grounds. At the same time, their modularity and miniaturization are also convenient for disassembly, recycling, and reuse through the assembled connection method.

[0022] (2)It can not only generate electricity using tidal energy but also replenish water to the storage tank through waves for power generation, increasing the total power generation duration and thus improving the utilization efficiency.

[0023] (3)The liquid level height of the drainage is controlled by the drainage control assembly inside the storage tank to optimize the utilization of the seawater potential energy inside it, improving the power generation duration and power generation efficiency. Description of the Drawings

[0024] The present application will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 It is a structural diagram of a power generation system using tidal energy according to the present application. Figure 2 [[ID=1--18]]It is a structural diagram of the power generation assembly in a power generation system using tidal energy according to the present application. Figure 3 It is a structural diagram when the drainage valve of the connection tank in the power generation assembly of the present application is closed. Figure 4 It is a structural diagram when the drainage valve of the connection tank in the power generation assembly of the present application is opened. Figure 5 It is a cross-sectional view of the connection tank in the power generation assembly of the present application. Figure 6 It is a structural diagram of the storage tank in the power generation assembly of the present application. Figure 7 It is a schematic diagram of the bottom of the storage tank in the power generation assembly of the present application. Figure 8 It is an exploded view of the storage tank in the power generation assembly of the present application. Figure 9 It is a cross-sectional view when the drainage opening of the storage tank in the power generation assembly of the present application is opened. Figure 10 It is a partial cross-sectional view of the drainage control assembly of the storage tank in the power generation assembly of the present application. Figure 11 It is a cross-sectional view when the drainage opening of the storage tank in the power generation assembly of the present application is closed. Figure 12 It is a first cross-sectional view of the energy storage assembly in a power generation system using tidal energy according to the present application. Figure 13 It is a second cross-sectional view of the energy storage assembly in a power generation system using tidal energy according to the present application.

[0026] In the figure: 1 - water receiving tank, 101 - water receiving hole, 102 - drainage channel, 103 - upper baffle, 104 - first mounting plate, 105 - slot, 2 - drain valve, 201 - T-shaped slider, 202 - upper extension plate, 203 - first floating plate, 3 - exhaust pipe, 301 - floating ball, 4 - water storage tank, 401 - support leg, 5 - downcomer, 6 - drive chamber, 7 - impeller, 701 - rotating shaft, 702 - jack, 8 - watertight chamber, 801 - input shaft, 802 - insertion plate, 9 - sleeve, 901 - water inlet hole, 902 - support sleeve, 903 - adapter plate, 10 - valve core, 1001 - conical head, 1002 - limit plate, 1003 - sliding sleeve, 11 - second floating plate, 12 - sliding rod, 13 - ejector rod, 1301 - third floating plate, 14 - rotating block, 15 - positioning screw, 16 - foundation pile, 17 - nut, 18 - energy storage assembly, 1801 - housing, 1802 - second mounting plate, 1803 - partition plate, 1804 - wire routing chamber, 1805 - energy storage unit placement chamber, 1806 - cooling isolation chamber, 1807 - wire passing hole, 1808 - through hole, 1809 - energy storage unit. Specific embodiments

[0027] The present application will be further described in detail with reference to the accompanying drawings, but it is not intended to limit the present application.

[0028] As Figure 1 shown, a power generation system using tidal energy includes a power generation assembly positioning screw 15 and a foundation pile 16. As Figure 2 shown, the power generation assembly includes a water receiving tank 1, a water storage tank 4, and a watertight chamber 8.

[0029] The water storage tank 4 with an open upper end is fixed above the water receiving tank 1 and is fixedly connected through the support legs 401 below it. The water storage tank 4 and the water receiving tank 1 are connected through the downcomer 5 in a through manner, and the water flow inside the downcomer 5 drives the impeller 7 to rotate. Further, a drive chamber 6 is connected through the downcomer 5 in a through manner, the axis of the drive chamber 6 is perpendicular to the downcomer 5 and is arranged at intervals, and the impeller 7 is coaxially rotatably arranged inside the drive chamber 6.

[0030] At least 3 groups of water storage tanks 4 are arranged above the water receiving tank 1, and the sum of the internal volumes of all the water storage tanks 4 is less than or equal to the internal volume of the water receiving tank 1.

[0031] A power generation set is provided inside the watertight chamber 8, and the input shaft 801 of the power generation set is connected to the rotating shaft 701 of the impeller 7.

[0032] As Figures 3 to 5As shown, a drain valve 2 is provided in the drain channel 102 of the water receiving tank 1. The cross-sectional shape of the drain channel 102 of the water receiving tank 1 is T-shaped, the drain channel 102 is vertically arranged, with its upper and lower ends open, an upper baffle 103 is provided at the top of the drain channel 102, and a convex block is provided on the outer side below the drain channel 102.

[0033] The drain valve 2 includes a T-shaped slider 201, the height of the T-shaped slider 201 is greater than or equal to the height of the drain channel 102, and the T-shaped slider 201 is slidably arranged inside the drain channel 102.

[0034] An upper extension plate 202 is fixedly provided on the outer side of the top of the T-shaped slider 201, and a first floating plate 203 is provided on the upper extension plate 202.

[0035] As the sea level rises and falls, the first floating plate 203 drives the T-shaped slider 201 to move up and down. When the first floating plate 203 moves upward and is blocked by the upper baffle 103, the T-shaped slider 201 blocks the drain channel 102. When the sea level drops, the first floating plate 203 moves downward and is blocked by the convex block on the outer side below the drain channel 102, preventing the drain valve 2 from completely separating from the drain channel 102. At this time, the drain channel 102 is opened, and the water receiving tank 1 drains water outward.

[0036] As shown by Figures 6 to 11 As shown, a drain control assembly is provided inside the water storage tank 4. When the liquid level inside the water storage tank 4 is higher than the threshold value, the drain control assembly controls the water storage tank 4 to drain water into the downpipe 5 to ensure that the water pressure inside the downpipe 5 is higher than the threshold value, facilitating the rotation of the impeller 7, and then driving the generator set inside the watertight chamber 8 to generate electricity.

[0037] The downpipe 5 is arranged below the water storage tank 4, and the through hole of the downpipe 5 communicating with the water storage tank 4 is located on the bottom surface of the water storage tank 4. A water receiving hole 101 is provided on the top surface of the water receiving tank 1, and the bottom of the downpipe 5 is connected in communication with the water receiving hole 101.

[0038] In this embodiment, the drain control assembly includes a valve core 10 arranged vertically. A conical head 1001 is provided at the bottom of the valve core 10, and a second floating plate 11 is connected to the top of the valve core 10. In the free state, the valve core 10 penetrates into the downpipe 5, and the outer diameter of the valve core 10 is the same as the inner diameter of the downpipe 5. After passing into the downpipe 5, the downpipe 5 is sealed. The opening liquid level height of the drain control assembly is adjusted by designing the height of the valve core 10.

[0039] A sliding sleeve 1003 extends outward from the top of the valve core 10. A sliding rod 12 arranged vertically is fixed on the bottom surface of the water storage tank 4. The sliding sleeve 1003 is sleeved on the sliding rod 12, and the sliding rod 12 guides the valve core 10 to move only up and down.

[0040] In order to achieve the modular design of the drainage control assembly, facilitate production and replacement. The drainage control assembly includes a sleeve 9, both the upper and lower ends of the sleeve 9 are arranged to be open, a ring-shaped mounting flange is sleeved at the bottom of the sleeve 9, and the mounting flange is detachably connected to the bottom surface of the water storage tank 4 through bolts.

[0041] Below the circumferential surface of the sleeve 9, there are several water inlet holes 901. The height of the water inlet holes 901 controls the lowest liquid level of the water drainage of the water storage tank 4, that is, the lowest pressure of the water flow inside the sewer pipe 5. The top of the sliding rod 12 is fixedly connected to the top surface of the sleeve 9 through a plate. The cylindrical valve core 10 is coaxially arranged in the middle of the sleeve 9. Above the valve core 10, it is connected to the second floating plate 11 through an extension rod. The outer diameter of the second floating plate 11 is larger than the outer diameter of the sleeve 9.

[0042] During high tide, the sea level rises. When the sea level is higher than the top of the water storage tank 4, sea water flows into the inside of the water storage tank 4, causing the liquid level inside the water storage tank 4 to rise. When the liquid level height reaches the height of the second floating plate 11, it pushes the second floating plate 11 to move upward, and the second floating plate 11 drives the valve core 10 to move upward. When the valve core 10 completely moves out of the inside of the sewer pipe 5, the sea water inside the water storage tank 4 flows through the sewer pipe 5 into the driving cavity 6, driving the impeller 7 to rotate.

[0043] Since the drain valve 2 is controlled by the first floating plate 203, therefore, when the sea level rises, the second floating plate 203 moves upward, closing the drainage channel 102 in advance, so that sea water will not flow into the receiving tank 1 through the drainage channel 102. In order to be able to close the drain valve 2 in advance, the second floating plate 203 can be arranged in the middle or lower part of the T-shaped slider 201. In this way, the inside of the receiving tank 1 is an empty chamber, and there will be no back pressure on the sea water discharged from the sewer pipe 5, thereby ensuring the drainage smoothness of the sewer pipe 5 and the energy conversion efficiency between the sewer pipe 5 and the impeller 7.

[0044] A ventilation pipe 3 is connected through the top of the receiving tank 1. The ventilation pipe 3 is made of a flexible pipe, and its end is connected with a float ball 301. The float ball 301 is provided with a ventilation hole. The float ball 301 can always float on the sea surface to ensure the smoothness of ventilation. The arrangement of the ventilation pipe 3 can ensure the stability of the internal pressure during the water inlet process of the receiving tank 1.

[0045] With the above arrangement form of the drainage control assembly, when the sea level drops and the second floating plate 11 moves downward, after the lower part of the valve core 10 is inserted into the inside of the sewer pipe 5, the water inside the water storage tank 4 cannot be drained for power generation. But at this time, the liquid level height inside the water storage tank 4 is higher than the height of the sleeve 9, and the potential energy of the internal sea water can still be used to drive the generator set to rotate and generate electricity.

[0046] In order to make more complete use of the potential energy of the sea water inside the water storage tank 4, in this embodiment, two groups of transfer plates 903 arranged symmetrically are fixed above the inner wall of the sleeve 9, and a rotating block 14 is rotatably connected between each group of transfer plates 903.

[0047] A support sleeve 902 is fixed on the inner wall of the sleeve 9 below the adapter plate 903. A ejector rod 13 arranged to slide up and down is inserted inside the support sleeve 902. A third floating plate 1301 is fixed to the bottom of the ejector rod 13. The top of the ejector rod 13 is located directly below the rotating block 14. A limit ring is sleeved on the ejector rod 13, and the limit ring is located below the support sleeve 902. When the buoyancy of seawater pushes the ejector rod 13 to move upward through the third floating plate 1301 and the limit ring abuts against the bottom of the support sleeve 902, the top of the ejector rod 13 abuts against the bottom surface of the horizontally arranged rotating block 14.

[0048] A limit plate 1002 is fixed at the position corresponding to the rotating block 14 at the top of the valve core 10. When the liquid level inside the water storage tank 4 rises, it first pushes the third floating plate 1301 to move upward until the limit ring of the ejector rod 13 abuts against the support sleeve 902, and the ejector rod 13 pushes the rotating block 14 to the horizontal position.

[0049] When the liquid level inside the water storage tank 4 continues to rise, the second floating plate 11 drives the valve core 10 to move upward. When the limit plate 1002 of the valve core 10 contacts the rotating block 14, it pushes the rotating block 14 to rotate around one end of the center of its principle sleeve 902, so that the valve core 10 can continue to move upward. When the limit plate 1002 moves above the rotating block 14, the rotating block 14 returns to the horizontal position under the action of its own weight. At this time, the valve core 10 disengages from the lower water pipe 5, and the water storage tank 4 starts to drain water.

[0050] When the liquid level inside the water storage tank 4 drops, the valve core 10 drops, and the limit plate 1002 drops directly above the rotating block 14 and abuts against it. The rotating block 14 supports it to prevent the valve core 10 from continuing to drop. At this time, the valve core 10 has not yet entered the lower water pipe 5, and the lower water pipe 5 continues to drain water. Until the liquid level inside the water storage tank 4 is lower than the third floating plate 1301 and the ejector rod 13 moves downward and the rotating block 14 can rotate downward, the limit plate 1002 of the valve core 10 will push the rotating block 14 to rotate downward, it disengages from the rotating block 14, and the valve core 10 drops rapidly.

[0051] The maximum height that the third floating plate 1301 rises is flush with the water inlet hole 901, so as to effectively utilize the potential energy of the seawater inside the water storage tank 4. It can not only utilize tidal energy, but also when the sea surface is lower than the upper open end of the water storage tank 4, the waves can also pump seawater into the water storage tank 4, enabling it to also utilize wave energy for power generation.

[0052] In case of a failure of the generator set, for quick replacement, in this embodiment, a slot 105 is provided on the top surface of the water receiving tank 1, and a plug board 802 is provided on the watertight compartment 8. The plug board 802 and the slot 105 are inserted in a horizontally sliding manner to achieve quick positioning. A fastening bolt can be added between the plug board 802 and the slot 105, and after being in place, they are fixedly connected through the fastening bolt.

[0053] The end of the rotating shaft 701 of the impeller 7 is recessed with a polygonal socket 702. The end of the input shaft 801 of the generator set is polygonal, and the end of the insertion shaft 801 is inserted into the interior of the socket 702 to achieve quick connection. A lifting ring is provided at the top of the watertight bin 8 for easy hoisting.

[0054] The described foundation pile 16 is arranged below the water receiving tank 1, and the foundation pile 16 is connected to the water receiving tank 1 through positioning screws 15. In order to make the drainage of the water receiving tank 1 smoother during the ebb tide, the height of the drainage tank 1 should be higher than the lowest sea level at low tide. For this reason, two foundation piles 16 are arranged below the water receiving tank 1, and at least two spaced positioning screws 15 are provided on each foundation pile 16.

[0055] At the end of the water receiving tank 1 in the length direction, a first mounting plate 104 protrudes. Mounting holes are provided on the first mounting plate 104, and the mounting holes are sleeved on the positioning screws 15. Nuts 17 threadedly connected to the positioning screws 15 are abutted on both the upper and lower sides of the first mounting plate 104.

[0056] The foundation pile 16 can adopt a concrete pile body, which is located on the seabed. The water receiving tank 1 is supported and positioned through the erected screws 15 and nuts 17.

[0057] By Figure 12 and Figure 13 As shown, an energy storage assembly 18 is connected to the positioning screw 15. The energy storage assembly 18 includes a housing 1801. Inside the housing 1801, a number of partition plates 1803 are provided. The partition plates 1803 divide the interior of the housing 1801 into an energy storage unit placement cavity 1805 and a cooling isolation cavity 1806 arranged at intervals. An energy storage unit 1809 is provided inside the energy storage unit placement cavity 1805. A number of through holes 1808 penetrating up and down are provided on the housing 1801 at the cooling isolation cavity 1806. The energy storage unit 1809 adopts the prior art and includes a storage battery and a power control module, and its connection method to the generator set also adopts the prior art.

[0058] The cooling isolation cavity 1806 mainly functions to isolate and cool. When one of the energy storage units 1809 fails and catches fire, it will not affect other energy storage units 1809. The seawater inside the cooling isolation cavity 1806 enters and exits through two groups of through holes 1808 arranged up and down. The heated seawater after heat exchange is discharged from the lower through hole 1808, and the cold seawater flows into the interior of the cooling isolation cavity 1806 from the upper through hole 1808 for cooling.

[0059] The interior of the housing 1801 is partitioned into a wire routing cavity 1804. The wire routing cavity 1804 is connected to the energy storage unit placement cavity 1805 through a wire passing hole 1807 for wire routing.

[0060] A second mounting plate 1802 is provided at the end face of the housing 1801. A through hole is provided on the second mounting plate 1802, and the through hole is sleeved on the positioning screw 15. The bottom end of the housing 1801 is lapped on the top of the foundation pile 16.

[0061] At least two towing ropes are connected to the housing 1801, and the ends of the towing ropes are fixed to the water receiving tank 1, which is convenient for pulling the energy storage assembly 18 out of the sea for maintenance in the later stage.

[0062] The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments, and various changes can be made without departing from the purpose of the present application within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A power generation system using tidal energy, characterized in that : It includes a water receiving tank (1), a water storage tank (4), a watertight compartment (8), a positioning screw (15) and a foundation pile (16); A water storage tank (4) with an open top is fixed above the water receiving tank (1). The water storage tank (4) and the water receiving tank (1) are connected through a downpipe (5). The water flow inside the downpipe (5) drives the impeller (7) to rotate. A generator set is provided inside the watertight compartment (8), and an input shaft (801) of the generator set is connected to a rotating shaft (701) of the impeller (7); The foundation pile (16) is arranged below the water receiving box (1), and the foundation pile (16) is connected to the water receiving box (1) via a positioning screw (15). The drainage channel (102) of the water receiving box (1) is provided with a drainage valve (2).

2. The power generation system using tidal energy according to claim 1, characterized in that : Two foundation piles (16) are arranged below the water receiving box (1), and each foundation pile (16) is provided with at least two positioning screws (15) arranged at intervals; A first mounting plate (104) is protruded from the end of the water receiving box (1) in the longitudinal direction. The first mounting plate (104) is provided with a mounting hole, which is sleeved on the positioning screw (15). Nuts (17) threadedly connected to the positioning screw (15) are abutted on the upper and lower sides of the first mounting plate (104).

3. A tidal energy power generation system according to claim 1 or 2, characterized in that : The downpipe (5) is connected to a driving chamber (6) through which the axis of the driving chamber (6) and the downpipe (5) are perpendicular to each other and spaced apart. The impeller (7) is rotatably arranged inside the driving chamber (6).

4. A tidal energy power generation system according to claim 2, characterized in that : The horizontal cross-section of the drainage channel (102) of the water receiving box (1) is T-shaped, and the drainage valve (2) includes a T-shaped slider (201), the height of the T-shaped slider (201) is greater than or equal to the height of the drainage channel (102), and the T-shaped slider (201) is slidably arranged inside the drainage channel (102); An upper baffle (103) is provided at the top of the drainage channel (102), an upper extension plate (202) is fixed to the outer side of the top of the T-shaped slider (201), and a first floating plate (203) is provided on the upper extension plate (202).

5. A power generation system using tidal energy according to claim 1 or 2 or 4, characterized in that : The water storage tank (4) is provided with a drainage control assembly inside. When the liquid level inside the water storage tank (4) is higher than a threshold value, the drainage control assembly controls the water storage tank (4) to drain water into the downpipe (5).

6. The power generation system using tidal energy according to claim 5, wherein : The downpipe (5) is arranged below the water storage tank (4), and a through opening between the downpipe (5) and the water storage tank (4) is located on the bottom surface of the water storage tank (4).

7. A power generation system using tidal energy according to claim 6, characterized in that : The drainage control assembly comprises a vertically arranged valve core (10), the top of the valve core (10) being connected to a second floating plate (11), and in a free state, the valve core (10) being inserted into the interior of the sewer pipe (5).

8. A tidal energy power generation system according to claim 7, characterized in that : A sliding sleeve (1003) extends outward from the top of the valve core (10), a vertically arranged sliding rod (12) is fixed to the bottom surface of the water storage tank (4), and the sliding sleeve (1003) is sleeved on the sliding rod (12).

9. The power generation system using tidal energy according to claim 8, characterized in that : The positioning screw (15) is connected to an energy storage assembly (18).

10. The power generation system using tidal energy according to claim 9, characterized in that : The energy storage assembly (18) described above includes a housing (1801). Inside the housing (1801), there are several partition plates (1803). The partition plates (1803) divide the interior of the housing (1801) into an energy storage unit placement cavity (1805) and a cooling isolation cavity (1806) that are arranged at intervals. An energy storage unit (1809) is provided inside the energy storage unit placement cavity (1805). On the housing (1801) at the cooling isolation cavity (1806), there are several through holes (1808) that penetrate up and down.

Images