Island micro-grid and aluminum air power generation module thereof

Abstract

The invention relates to the technical field of micro-grids, in particular to an island micro-grid and an aluminum-air power generation module thereof. An aluminum-air power generation module comprises a shell, an adjusting mechanism and a power generation mechanism. The power generation mechanism comprises a main pipe and at least one power generation assembly. The power generation unit continuously enters and exits the seawater by rotating the main pipe, so that the power generation unit can carry oxygen to participate in the reaction. The shell is always balanced on the surface of seawater, a special pressure-resistant container is not needed, heat exchange can be carried out through seawater flowing, heat released by the power generation unit during power generation is taken out, the temperature of the power generation unit is controlled, and safety can be remarkably improved. The invention provides an island micro-grid and an aluminum-air power generation module thereof, and aims to solve the problem that an existing micro-grid system cannot provide guaranteed power supply for the island micro-grid when island power supply fault power recovery time is long.

Description

Technical Field

[0001] The present invention relates to the technical field of microgrids, and in particular to an island microgrid and an aluminum air power generation module thereof. Background Art

[0002] The island microgrid is a microgrid system specially used in the island environment. It is composed of distributed power sources, power loads, energy storage facilities, distribution facilities, system monitoring and protection devices, etc. It has complete power transmission and distribution functions, including power generation, power consumption, energy storage, regulation and protection. In the island power supply system, it is difficult for the city power to cross the sea. Some islands are equipped with a single 35 kV line for power supply. A single line failure will cause the entire island to lose power, and the fault recovery time is long, which seriously restricts the reliable power supply of the island. Therefore, the application of microgrids plays a vital role in the island power supply system. On weekdays, the microgrid and the large power grid complement each other. Once the city power is cut off, the microgrid will seamlessly switch to island mode.

[0003] The aluminum-air power generation module uses aluminum alloy as the negative electrode, air electrode as the positive electrode, and neutral or alkaline aqueous solution as the electrolyte. During operation, the aluminum alloy negative electrode and oxygen in the air undergo a chemical reaction to output electrical energy.

[0004] For example, the utility model patent with announcement number CN205353701U provides an island-type smart microgrid system, which generates electricity through the wind power generation system and solar power generation system, and uses the computer in the intelligent control system to timely understand the situation on the island, find the source of danger, and take timely measures to reduce the losses of the power grid on the island due to natural disasters. However, the wind power generation system and the solar power generation system are limited by fuel, and the output will be reduced if the safe operating time is exceeded. Therefore, under the premise that the island power supply failure takes a long time to restore power, the wind power generation system and the solar power generation system cannot provide a guaranteed power supply for the island microgrid. Summary of the invention

[0005] The present invention provides an island microgrid and an aluminum air power generation module thereof to solve the problem that the existing microgrid system cannot provide a guaranteed power supply for the island microgrid when the island power supply failure recovery time is long.

[0006] An island microgrid and its aluminum-air power generation module of the present invention adopt the following technical solution: an aluminum-air power generation module includes a shell, an adjustment mechanism and a power generation mechanism, and the shell floats on the water. The power generation mechanism includes a main pipe and at least one power generation component. The main pipe is horizontally arranged, and the main pipe can be slid up and down in the shell, and the main pipe can rotate around its own axis. An electric slip ring is arranged at one end of the main pipe, and a DC bus is arranged on the electric slip ring. A retaining frame is fixedly arranged on the main pipe, and the two sides of the retaining frame along the first direction are respectively a first side and a second side, and the first direction is the radial direction of the main pipe.

[0007] The power generation assembly includes two power generation units, which are respectively arranged on the first side and the second side of the retaining frame. The main pipe moves in the housing and has a first position and a second position, and the second position of the main pipe is below the first position. When the main pipe is in the second position, the power generation unit on the lower side of the main pipe contacts the seawater, and the power generation unit generates electricity after contacting the seawater. The power generation unit on the upper side of the main pipe does not contact the seawater.

[0008] The regulating mechanism includes a first electromagnet, a second electromagnet, a first permanent magnet and two second permanent magnets. The first permanent magnet is fixedly arranged on the first side of the retaining frame. The second permanent magnet is fixedly arranged in the middle of the retaining frame, and the two second permanent magnets are distributed in sequence along the circumference of the main pipe. The first electromagnet and the second electromagnet are both fixedly arranged in the housing, and the first electromagnet and the second electromagnet are located at the upper ends of the first permanent magnet and the second permanent magnet. The first electromagnet and the first permanent magnet attract each other, and the second electromagnet and the second permanent magnet attract each other. When the first electromagnet and the second electromagnet are powered off, the first electromagnet and the first permanent magnet are disconnected, the second electromagnet and the second permanent magnet are disconnected, and the main pipe moves from the first position to the second position.

[0009] Furthermore, the power generation unit includes a connecting plate, an anode aluminum plate and two cathode membranes. The connecting plate is fixedly arranged on a retaining frame, and the connecting plate is arranged along the axial direction of the main pipe. The anode aluminum plate and the two cathode membranes are arranged in the connecting plate, and the anode aluminum plate and the cathode membrane are both arranged along the axial direction of the main pipe, and the anode aluminum plate and the cathode membrane are both wavy. The two cathode membranes are distributed in sequence along the second direction, the second direction is the radial direction of the main pipe, and the first direction is perpendicular to the second direction, and the anode aluminum plate is arranged between the two cathode membranes. Waterproof oxygen-permeable membranes are arranged on both sides of the cathode membrane along the second direction, and a catalyst membrane is arranged on the side of the cathode membrane facing the anode aluminum plate.

[0010] Further, the connecting plate includes an upper plate, a lower plate and two side plates, the upper plate and the lower plate are sequentially distributed along the second direction, and the anode aluminum plate and the cathode film are arranged between the upper plate and the lower plate. The length of the lower plate is less than the length of the upper plate, and an open end is formed between the lower plate and the upper plate, and the open end is a side of the connecting plate away from the main pipe. The two side plates are sequentially distributed along the axial direction of the main pipe, and each side plate is fixedly connected to the upper plate and the lower plate.

[0011] Furthermore, the power generation mechanism also includes a DC motor, and the output shaft of the DC motor is fixedly connected to an end of the main pipe away from the electric slip ring.

[0012] Furthermore, an airbag is arranged on the outer peripheral wall of the shell.

[0013] Furthermore, a magnetic curtain that can be opened from the middle is arranged in the shell, and the magnetic curtain is arranged between the first position and the second position of the main pipe.

[0014] Furthermore, the main pipe comprises two half pipes, the two half pipes are buckled together, and a sealing ring is arranged at the connection between the two half pipes.

[0015] Furthermore, two slide grooves are arranged on the inner wall of the housing, and the two slide grooves are sequentially distributed along the axial direction of the main pipe. Each slide groove is arranged vertically. A sleeve is fixedly arranged on the DC motor, a first sliding block is arranged on the sleeve, and a second sliding block is arranged on the electric slip ring. The first sliding block and the second sliding block are respectively slidably arranged in the two slide grooves.

[0016] An island microgrid includes the above-mentioned aluminum air power generation module, and also includes an energy storage module, a generator module and a bidirectional AC / DC rectifier. An AC bus is provided on the generator module. The generator module includes one or more of a photovoltaic power generation system, a wind power generation system, and a hydrogen fuel power generation system. The energy storage module is connected to a first electromagnet and a second electromagnet. The bidirectional AC / DC rectifier connects the AC bus and the DC bus to realize AC / DC power conversion.

[0017] The generator module supplies power when the energy storage module is less than 30% and transmits the power to the AC bus, reversely charging the energy storage module while supplying power to the load. The energy storage module continues to supply power when the generator module stops supplying power due to a fault or fuel exhaustion. The aluminum air power generation module supplies power when the energy storage module is less than 10% and transmits the generated power to the DC bus. The aluminum air power generation module stops supplying power when the energy storage module is more than 30%.

[0018] Furthermore, an island microgrid also includes a power detection module, the power detection module includes a relay switch, and the relay switch is connected to the energy storage module. The relay switch is closed when the power of the energy storage module is less than 10%, at which time the first electromagnet and the second electromagnet are powered off, the first electromagnet and the first permanent magnet are disconnected, and the second electromagnet and the second permanent magnet are disconnected. The relay switch is opened when the power of the energy storage module is greater than 30%, at which time the first electromagnet and the second electromagnet are powered, and the first electromagnet is connected to the first permanent magnet.

[0019] The beneficial effects of the present invention are as follows: an island microgrid and its aluminum air power generation module of the present invention, through the setting of the regulating mechanism and the power generation mechanism, in the initial state, the first electromagnet and the second electromagnet are energized and have magnetism, the first electromagnet and the first permanent magnet, the second electromagnet and the second permanent magnet attract each other, the main pipe is in the first position, and the power generation unit does not generate electricity. When the first electromagnet and the second electromagnet are powered off and lose magnetism, the first electromagnet and the first permanent magnet are disconnected, the second electromagnet and the second permanent magnet are disconnected, and under the action of gravity, the main pipe moves downward to the second position.

[0020] Since the second permanent magnet is provided on the first side of the holder, the mass of the first side and the second side of the holder is unbalanced, so the first side of the holder will fall into the water first. When the power generation unit on the first side of the holder enters the seawater, the seawater and air bubbles enter the power generation unit, and the power generation unit starts to generate electricity. By rotating the main pipe, the power generation unit on the first side of the holder gradually leaves the seawater, and the seawater in the power generation unit is gradually poured out. Before the power generation unit enters the seawater again, the seawater in the power generation unit is completely emptied and carries new air. This goes back and forth, and new seawater and air bubbles are replaced in each circle.

[0021] Since seawater contains only 0.5% dissolved oxygen, the oxygen concentration seriously restricts the power generation efficiency of the power generation unit. Therefore, by rotating the main pipe, the power generation unit is constantly in and out of the seawater, which is more conducive to the power generation unit carrying oxygen to participate in the reaction.

[0022] The two power generation units set by the cage can speed up the power generation efficiency and gain a longer repair time for power restoration. The shell is always balanced on the seawater surface, without the need for special pressure-resistant containers. The flow of seawater can also be used for heat exchange, bringing out the heat released by the power generation unit during power generation, controlling the temperature of the power generation unit, and significantly improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 A cross-sectional view of an aluminum air power generation module provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of an adjustment mechanism and a power generation mechanism of an aluminum air power generation module provided in an embodiment of the present invention; Figure 3 An exploded diagram of an adjustment mechanism and a power generation mechanism of an aluminum air power generation module provided in an embodiment of the present invention; Figure 4 A schematic diagram of a partial structure of a power generation mechanism of an aluminum air power generation module provided in an embodiment of the present invention; Figure 5 for Figure 4 The enlarged view of point A in the middle; Figure 6 A schematic diagram of the structure of a power generation unit of an aluminum air power generation module provided in an embodiment of the present invention; Figure 7 for Figure 6 The enlarged view of point B in the middle; Figure 8 A schematic diagram of a power generation unit of an aluminum air power generation module provided by an embodiment of the present invention when generating electricity; Fig. 9 A schematic structural diagram of an adjustment mechanism and a power generation mechanism of an aluminum air power generation module provided in another embodiment of the present invention; Fig.10 A front view of an adjustment mechanism and a power generation mechanism of an aluminum air power generation module provided in another embodiment of the present invention.

[0025] In the figure: 100, housing; 110, magnetic curtain; 120, slide; 130, round table; 131, fixing plate; 200, main pipe; 201, half pipe; 202, inlet hole; 203, outlet pipe; 210, electric slip ring; 211, second sliding block; 220, retaining frame; 300, first electromagnet; 301, second electromagnet; 310, first permanent magnet; 320, second permanent magnet; 400, connecting plate; 410, anodized aluminum plate; 420 , cathode membrane; 430, upper plate; 431, first vertical plate; 433, first convex plate; 440, lower plate; 441, second vertical plate; 442, limiting column; 443, second convex plate; 450, side plate; 451, first corrugated plate; 452, second corrugated plate; 453, third corrugated plate; 454, fourth corrugated plate; 500, DC motor; 510, airbag; 520, sleeve; 521, first sliding block; 600, air bubble; 700, sea water. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Reference Figures 1 to 10 As shown, an aluminum air power generation module provided by an embodiment of the present invention includes a shell 100, an adjustment mechanism and a power generation mechanism, and the shell 100 floats on the water. The power generation mechanism includes a main pipe 200 and at least one power generation component. The main pipe 200 is arranged horizontally, and the main pipe 200 can be slid up and down in the shell 100, and the main pipe 200 can rotate around its own axis. An electric slip ring 210 is arranged at one end of the main pipe 200, and a DC bus is arranged on the electric slip ring 210. A retaining frame 220 is fixedly arranged on the main pipe 200, and the two sides of the retaining frame 220 along the first direction are respectively a first side and a second side, and the first direction is the radial direction of the main pipe 200.

[0028] The power generation assembly includes two power generation units, which are respectively arranged on the first side and the second side of the retaining frame 220. The main pipe 200 moves in the housing 100 and has a first position and a second position, and the second position of the main pipe 200 is below the first position. When the main pipe 200 is in the first position, the power generation unit is not in contact with the seawater 700. When the main pipe 200 is in the second position, the power generation unit on the lower side of the main pipe 200 is in contact with the seawater 700, and after the seawater 700 and the air bubbles 600 enter the power generation unit, the power generation unit starts to generate electricity. The power generation unit on the upper side of the main pipe 200 is not in contact with the seawater 700.

[0029] The adjustment mechanism includes a first electromagnet 300, a second electromagnet 301, a first permanent magnet 310 and two second permanent magnets 320. The first permanent magnet 310 is fixedly arranged on the first side of the holder 220. The second permanent magnet 320 is fixedly arranged in the middle of the holder 220, and the two second permanent magnets 320 are sequentially distributed along the circumference of the main pipe 200. The first electromagnet 300 and the second electromagnet 301 are both fixedly arranged in the housing 100, and the first electromagnet 300 and the second electromagnet 301 are located at the upper ends of the first permanent magnet 310 and the second permanent magnet 320. The first electromagnet 300 and the first permanent magnet 310 attract each other, and the second electromagnet 301 and the second permanent magnet 320 attract each other. When the first electromagnet 300 and the second electromagnet 301 are powered off, the first electromagnet 300 and the first permanent magnet 310 are disconnected, the second electromagnet 301 and the second permanent magnet 320 are disconnected, and the main pipe 200 moves from the first position to the second position.

[0030] In the initial state, the first electromagnet 300 and the second electromagnet 301 are energized and have magnetism, the first electromagnet 300 and the first permanent magnet 310 attract each other, the second electromagnet 301 and the second permanent magnet 320 attract each other, the main pipe 200 is in the first position, and the power generation unit does not generate electricity. When the first electromagnet 300 and the second electromagnet 301 are powered off and lose magnetism, the first electromagnet 300 and the first permanent magnet 310 are disconnected, the second electromagnet 301 and the second permanent magnet 320 are disconnected, and under the action of gravity, the main pipe 200 moves downward to the second position.

[0031] Since the second permanent magnet 320 is provided on the first side of the retaining frame 220, the mass of the first side and the second side of the retaining frame 220 is unbalanced, so the first side of the retaining frame 220 will fall into the water first. When the power generation unit on the first side of the retaining frame 220 enters the seawater 700, the seawater 700 and the air bubbles 600 enter the power generation unit, and the power generation unit starts to generate electricity. By rotating the main pipe 200, the power generation unit on the first side of the retaining frame 220 gradually leaves the seawater 700, and the seawater 700 in the power generation unit is gradually poured out. Before the power generation unit enters the seawater 700 again, the seawater 700 in the power generation unit is completely emptied and carries new air. This goes back and forth, and new seawater 700 and air bubbles 600 are replaced in each circle.

[0032] Since the seawater 700 contains only 0.5% dissolved oxygen, the oxygen concentration seriously restricts the power generation efficiency of the power generation unit. Therefore, by rotating the main pipe 200, the power generation unit is constantly in and out of the seawater 700, which is more conducive to the power generation unit carrying oxygen to participate in the reaction.

[0033] The two power generation units arranged by the retaining frame 220 increase the power generation efficiency and gain a longer repair time for power restoration. The shell 100 is always balanced on the surface of the seawater 700, and no special pressure-resistant container is required. The flow of seawater 700 can also perform heat exchange, bringing out the heat released by the power generation unit during power generation, controlling the temperature of the power generation unit, and significantly improving safety.

[0034] In this embodiment, the power generation unit includes a connecting plate 400, an anodized aluminum plate 410 and two cathode films 420. The connecting plate 400 is fixedly arranged on the retaining frame 220, and the connecting plate 400 is arranged along the axial direction of the main pipe 200. The anodized aluminum plate 410 and the two cathode films 420 are arranged in the connecting plate 400, and the anodized aluminum plate 410 and the cathode film 420 are both arranged along the axial direction of the main pipe 200, and the anodized aluminum plate 410 and the cathode film 420 are both wavy, which increases the contact area with the air, so that more air can be carried. The two cathode films 420 are distributed in sequence along the second direction, the second direction is the radial direction of the main pipe 200, and the first direction is perpendicular to the second direction, and the anodized aluminum plate 410 is arranged between the two cathode films 420. A waterproof oxygen-permeable film is arranged on both sides of the cathode film 420 along the second direction, and a catalyst film is arranged on the side of the cathode film 420 facing the anodized aluminum plate 410.

[0035] By using the flowing seawater 700, the polarization of the anode aluminum plate 410 and the cathode membrane 420 caused by the reactants is eliminated to a certain extent, which is beneficial to the balance of the discharge performance of the anode aluminum plate 410 and the cathode membrane 420 and improves the power generation efficiency.

[0036] In this embodiment, the connecting plate 400 includes an upper plate 430, a lower plate 440 and two side plates 450, the upper plate 430 and the lower plate 440 are sequentially distributed along the second direction, and the anode aluminum plate 410 and the cathode membrane 420 are arranged between the upper plate 430 and the lower plate 440. The length of the lower plate 440 is less than the length of the upper plate 430, and an open end is formed between the lower plate 440 and the upper plate 430, and the open end is the side of the connecting plate 400 away from the main pipe 200, and the open end enables the seawater 700 to effectively flow into the power generation unit. The two side plates 450 are sequentially distributed along the axial direction of the main pipe 200, and each side plate 450 is fixedly connected to the upper plate 430 and the lower plate 440. The middle of the upper plate 430 and the lower plate 440 are hollowed out to increase the amount of air contact.

[0037] A first vertical plate 431 is fixedly provided on one side of the upper plate 430 close to the main pipe 200, and a second vertical plate 441 is fixedly provided on one side of the lower plate 440 close to the main pipe 200. A limiting column 442 is fixedly provided on the second vertical plate 441, and a groove adapted to the limiting column 442 is provided on the first vertical plate 431. A sealant is provided between the first vertical plate 431 and the second vertical plate 441 to prevent the leakage of the seawater 700.

[0038] The first corrugated plate 451, the second corrugated plate 452, the third corrugated plate 453 and the fourth corrugated plate 454 are fixedly arranged on the side plate 450. The first corrugated plate 451, the second corrugated plate 452, the third corrugated plate 453 and the fourth corrugated plate 454 are sequentially arranged along the direction from the upper plate 430 to the lower plate 440. The anodized aluminum plate 410 is arranged between the second corrugated plate 452 and the third corrugated plate 453.

[0039] A first convex plate 433 is fixedly provided on one side of the upper plate 430 close to the side plate 450, and a second convex plate 443 is fixedly provided on one side of the lower plate 440 close to the side plate 450, and both the first convex plate 433 and the second convex plate 443 are wavy. One cathode membrane 420 is provided between the first convex plate 433 and the first corrugated plate 451. Another cathode membrane 420 is provided between the second convex plate 443 and the fourth corrugated plate 454, so that a gap is left between the anode aluminum plate 410 and the cathode membrane 420, which is convenient for the seawater 700 and the bubbles 600 to enter.

[0040] In this embodiment, the power generation mechanism further includes a DC motor 500 , and the output shaft of the DC motor 500 is fixedly connected to an end of the main pipe 200 away from the electric slip ring 210 .

[0041] In another embodiment, a first connecting frame and a second connecting frame are fixedly arranged on the main pipe 200, and the first connecting frame and the second connecting frame are sequentially distributed along the axial direction of the main pipe 200. The first connecting frame is closer to the DC motor 500 than the second connecting frame, and two power generation units are arranged on the first connecting frame to ensure that the first permanent magnet 310 and the first electromagnet 300 can be arranged on the first connecting frame without obstacles. A plurality of power generation units are arranged on the second connecting frame, and the plurality of power generation units are sequentially distributed along the circumference of the main pipe 200.

[0042] In this embodiment, an airbag 510 is disposed on the outer peripheral wall of the housing 100. A truncated platform 130 is disposed below the housing 100, and the airbag 510 is disposed on the truncated platform 130. A detachable fixing plate 131 is disposed on the truncated platform 130, and the fixing plate 131 is used to limit the position of the airbag 510, and the height of the airbag 510 can be adjusted by moving the fixing plate 131.

[0043] In this embodiment, a magnetic curtain 110 that can be opened from the middle is disposed in the housing 100, and the magnetic curtain 110 is disposed between the first position and the second position of the main pipe 200. When the main pipe 200 is in the first position, the main pipe 200 is above the magnetic curtain 110, isolating the power generation unit from the seawater 700.

[0044] In this embodiment, the main pipe 200 includes two half pipes 201, the two half pipes 201 are buckled together, and a sealing ring is provided at the connection of the two half pipes 201. An inlet hole 202 is provided on the half pipe 201, and an outlet pipe 203 is provided at the inlet hole 202, and the outlet pipe 203 is connected to the connecting plate 400. A positive electrode and a negative electrode are provided in the outlet pipe 203. The negative electrode is connected to the anode aluminum plate 410, and the positive electrode is connected to the two cathode films 420. The positive electrode and the negative electrode are connected with a wire, and the wire enters the main pipe 200 along the outlet pipe 203 and is connected to the DC motor 500 and the electric slip ring 210.

[0045] In this embodiment, two slide grooves 120 are arranged on the inner wall of the shell 100, and the two slide grooves 120 are sequentially distributed along the axial direction of the main pipe 200. Each slide groove 120 is arranged vertically. A sleeve 520 is fixedly arranged on the DC motor 500, and a first sliding block 521 is arranged on the sleeve 520. A second sliding block 211 is arranged on the electric slip ring 210, and the electric slip ring 210 and the second sliding block 211 can rotate with each other. The first sliding block 521 and the second sliding block 211 are respectively slidably arranged in the two slide grooves 120. Since the load of the main pipe 200 will increase suddenly after the power generation unit is filled with seawater 700, the first sliding block 521 and the second sliding block 211 that slide up and down in the slide groove 120 are arranged to enhance the strength of the main pipe 200.

[0046] An island microgrid includes an aluminum air power generation module, an energy storage module, a generator module and a bidirectional AC / DC rectifier. An AC bus is provided on the generator module. The generator module includes one or more of a photovoltaic power generation system, a wind power generation system and a hydrogen fuel power generation system. The energy storage module is connected to a first electromagnet 300 and a second electromagnet 301. The bidirectional AC / DC rectifier connects the AC bus and the DC bus to realize AC / DC power conversion.

[0047] The generator module supplies power when the energy storage module is less than 30% and transmits the power to the AC bus, reversely charging the energy storage module while supplying power to the load. The energy storage module continues to supply power when the generator module stops supplying power due to a fault or fuel exhaustion. The aluminum air power generation module supplies power when the energy storage module is less than 10% and transmits the generated power to the DC bus. The aluminum air power generation module stops supplying power when the energy storage module is more than 30%.

[0048] In this embodiment, an island microgrid also includes a power detection module, and the power detection module includes a relay switch, and the relay switch is connected to the energy storage module. The relay switch is closed when the power of the energy storage module is less than 10%, at which time the first electromagnet 300 and the second electromagnet 301 are powered off, the first electromagnet 300 and the first permanent magnet 310 are disconnected, and the second electromagnet 301 and the second electromagnet 301 are disconnected. The relay switch is turned on when the power of the energy storage module is greater than 30%, at which time the first electromagnet 300 and the second electromagnet 301 are powered, the first electromagnet 300 and the first permanent magnet 310 are connected, and the second electromagnet 301 and the second permanent magnet 320 are connected. At this time, the second electromagnet 301 and the second permanent magnet 320 will appear to be attracted or not attracted. When the first side of the retaining frame 220 rotates to the same side as the second electromagnet 301, the second electromagnet 301 and the second permanent magnet 320 are attracted. When the first side of the retaining frame 220 rotates to the different side of the second electromagnet 301, the second electromagnet 301 and the second permanent magnet 320 are not attracted. That is, the first permanent magnet 310 is the main magnet that exerts the magnetic attraction effect, and the second permanent magnet 320 mainly functions to ensure that the power generation unit on one side enters the water first.

[0049] Working process: In the initial state, the power of the energy storage module is higher than 30%, the first electromagnet 300 and the first permanent magnet 310 are attracted to each other, and the second electromagnet 301 and the second permanent magnet 320 are attracted to each other. The main pipe 200 is in the first position.

[0050] When the energy storage module is less than 30% charged, the generator module is started to supply power. The generator module generates electricity and transmits it to the AC bus. While supplying power to the load, it also reversely charges the energy storage module. When the generator module stops supplying power due to a fault or fuel exhaustion, the energy storage module continues to supply power.

[0051] When the power of the energy storage module is less than 10%, the relay switch is turned off, the first electromagnet 300 and the second electromagnet 301 are powered off, so that the first electromagnet 300 and the first permanent magnet 310 are disconnected, and the second electromagnet 301 and the second permanent magnet 320 are disconnected. Under the action of gravity, the main pipe 200 moves from the first position to the second position. Since the second permanent magnet 320 is provided on the first side of the retaining frame 220, the mass of the first side and the second side of the retaining frame 220 is unbalanced, so the first side of the retaining frame 220 will fall into the water first.

[0052] When the power generation unit on the first side of the retaining frame 220 enters the seawater 700, air is stored in the upper concave part of the anode aluminum plate 410 and the cathode membrane 420 in the form of bubbles 600. Since a waterproof oxygen-permeable membrane is provided on the cathode membrane 420, the air outside the cathode membrane 420 will penetrate between the anode aluminum plate 410 and the cathode membrane 420. There are four necessary conditions for the aluminum-air power generation module to generate electricity, namely, anode, cathode, oxygen and electrolyte solution. The electrolyte solution is seawater 700. When the power generation unit carries air into the seawater 700, all power generation conditions are met, and the power generation unit starts to generate electricity.

[0053] The current generated by the power generation unit drives the DC motor 500 to rotate, the DC motor 500 drives the main pipe 200 to rotate, and the main pipe 200 drives the power generation assembly to rotate synchronously. When the power generation unit rotates to the lowest position, that is, the connecting plate 400 is in a vertical state, the bubbles 600 float on the first vertical plate 431 and the second vertical plate 441 of the connecting plate 400, and the electrolyte participating in the reaction here is the seawater 700 hanging on the cathode membrane 420. The oxygen participating in the reaction at the open end of the connecting plate 400 is the dissolved oxygen in the seawater 700, and the electrolyte participating in the reaction here is the seawater 700 in the sea.

[0054] The main pipe 200 drives the power generation unit to continue to rotate. After the power generation unit leaves the seawater 700, the connecting plate 400 gradually becomes horizontal, and the bubbles 600 gradually move from the first vertical plate 431 and the second vertical plate 441 to the open end of the connecting plate 400. Part of the seawater 700 is stored in the upper concave part of the anode aluminum plate 410 and the cathode membrane 420, and the reaction continues.

[0055] When the power generation unit is at the highest position, that is, the connecting plate 400 is in a vertical state, the bubbles 600 are discharged, and the seawater 700 in the power generation unit gathers at the first vertical plate 431 and the second vertical plate 441, and the reaction continues. The power generation unit continues to rotate, and the seawater 700 in the power generation unit is gradually poured out. Before the power generation unit enters the seawater 700 again, the seawater 700 in the power generation unit is completely emptied and carries new air. This goes back and forth, and new seawater 700 and bubbles 600 are replaced in each circle.

[0056] The current generated by the aluminum air power generation module is divided into two paths, one to drive the motor to rotate, and the other to be transmitted to the DC bus through the electric slip ring 210. The power generated by the aluminum air power generation module is directly rectified by the bidirectional AC / DC rectifier, and reversely charges the energy storage module while supplying power to the load. When the power of the energy storage module is higher than 30%, the aluminum air power generation module stops supplying power.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An aluminum air power generation module, characterized in that: The invention comprises a shell, an adjusting mechanism and a power generation mechanism, wherein the shell floats on the water surface; the power generation mechanism comprises a main pipe and at least one power generation component; the main pipe is arranged horizontally, and the main pipe can be arranged in the shell so as to slide up and down, and the main pipe can rotate around its own axis; an electric slip ring is arranged at one end of the main pipe, and a DC bus is arranged on the electric slip ring; a retaining frame is fixedly arranged on the main pipe, and the two sides of the retaining frame along a first direction are respectively a first side and a second side, and the first direction is the radial direction of the main pipe; The power generation assembly includes two power generation units, which are respectively arranged on the first side and the second side of the retaining frame; the main pipe has a first position and a second position when it moves in the housing, and the second position of the main pipe is below the first position; when the main pipe is in the second position, the power generation unit on the lower side of the main pipe contacts the seawater, and the power generation unit generates electricity after contacting the seawater; the power generation unit on the upper side of the main pipe does not contact the seawater; The adjustment mechanism includes a first electromagnet, a second electromagnet, a first permanent magnet and two second permanent magnets; the first permanent magnet is fixedly arranged on the first side of the retaining frame; The second permanent magnet is fixedly arranged in the middle of the retaining frame, and the two second permanent magnets are sequentially distributed along the circumference of the main pipe; the first electromagnet and the second electromagnet are both fixedly arranged in the shell, the first electromagnet and the second electromagnet are located at the upper ends of the first permanent magnet and the second permanent magnet, the first electromagnet and the first permanent magnet are attracted to each other, and the second electromagnet and the second permanent magnet are attracted to each other; when the first electromagnet and the second electromagnet are powered off, the first electromagnet and the first permanent magnet are disconnected, the second electromagnet and the second permanent magnet are disconnected, and the main pipe moves from the first position to the second position.

2. The aluminum air power generation module according to claim 1, characterized in that: The power generation unit includes a connecting plate, an anode aluminum plate and two cathode membranes; the connecting plate is fixedly arranged on a retaining frame, and the connecting plate is arranged along the axial direction of the main pipe; the anode aluminum plate and the two cathode membranes are arranged in the connecting plate, and the anode aluminum plate and the cathode membranes are both arranged along the axial direction of the main pipe, and the anode aluminum plate and the cathode membranes are both wavy; the two cathode membranes are distributed in sequence along a second direction, the second direction is the radial direction of the main pipe, and the first direction is perpendicular to the second direction, and the anode aluminum plate is arranged between the two cathode membranes; waterproof and oxygen-permeable membranes are arranged on both sides of the cathode membrane along the second direction, and a catalyst membrane is arranged on the side of the cathode membrane facing the anode aluminum plate.

3. The aluminum air power generation module according to claim 2, characterized in that: The connecting plate comprises an upper plate, a lower plate and two side plates, the upper plate and the lower plate are sequentially distributed along the second direction, the anode aluminum plate and the cathode film are arranged between the upper plate and the lower plate; wherein the length of the lower plate is smaller than the length of the upper plate, an open end is formed between the lower plate and the upper plate, and the open end is a side of the connecting plate away from the main pipe; the two side plates are sequentially distributed along the axial direction of the main pipe, and each side plate is fixedly connected to the upper plate and the lower plate.

4. The aluminum air power generation module according to claim 1, characterized in that: The power generation mechanism also includes a DC motor, and the output shaft of the DC motor is fixedly connected to an end of the main pipe away from the electric slip ring.

5. The aluminum air power generation module according to claim 1, characterized in that: An air bag is arranged on the outer peripheral wall of the shell.

6. The aluminum air power generation module according to claim 1, characterized in that: A magnetic curtain which can be split from the middle is arranged in the shell, and the magnetic curtain is arranged between the first position and the second position of the main pipe.

7. The aluminum air power generation module according to claim 1, characterized in that: The main pipe comprises two half pipes, the two half pipes are buckled together, and a sealing ring is arranged at the connection of the two half pipes.

8. The aluminum air power generation module according to claim 3 is characterized in that: Two slide grooves are arranged on the inner wall of the shell, and the two slide grooves are distributed in sequence along the axial direction of the main pipe; each slide groove is arranged vertically; a sleeve is fixedly arranged on the DC motor, a first sliding block is arranged on the sleeve, and a second sliding block is arranged on the electric slip ring; the first sliding block and the second sliding block are respectively slidably arranged in the two slide grooves.

9. An island microgrid, comprising an aluminum-air power generation module according to any one of claims 1 to 8, characterized in that: It also includes an energy storage module, a generator module and a bidirectional AC / DC rectifier; the generator module is provided with an AC bus; the generator module includes one or more of a photovoltaic power generation system, a wind power generation system, and a hydrogen fuel power generation system; the energy storage module is connected to the first electromagnet and the second electromagnet; the bidirectional AC / DC rectifier connects the AC bus and the DC bus to realize AC / DC conversion; The generator set module supplies power when the power of the energy storage module is less than 30%, and transmits the electric energy to the AC bus, reverse charging the energy storage module while supplying power to the load; the energy storage module continues to supply power when the generator set module stops supplying power due to a fault or fuel exhaustion; the aluminum air power generation module supplies power when the power of the energy storage module is less than 10%, and transmits the generated electric energy to the DC bus; the aluminum air power generation module stops supplying power when the power of the energy storage module is higher than 30%.

10. The island microgrid according to claim 9, characterized in that: It also includes a power detection module, which includes a relay switch, and the relay switch is connected to the energy storage module; the relay switch is closed when the power of the energy storage module is less than 10%, at which time the first electromagnet and the second electromagnet are powered off, the first electromagnet and the first permanent magnet are disconnected, and the second electromagnet and the second permanent magnet are disconnected; the relay switch is opened when the power of the energy storage module is greater than 30%, at which time the first electromagnet and the second electromagnet are powered on, and the first electromagnet is connected to the first permanent magnet.

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