Temperature difference type power generation device

Abstract

The invention relates to the technical field of temperature difference type power generation, in particular to a temperature difference type power generation device which comprises a base, a water tank is formed in the outer wall of the base, and an air tank filled with air, a pressure tank filled with water and a high-pressure tank filled with air and water are fixed to the outer wall of the top of the water tank. Through the arranged energy storage mechanism, after a piston drives a plunger to be inserted into a water conveying pipe and a detection value of a pressure sensor reaches a threshold value, a cooling mechanism is automatically triggered to spray mist into an air tank, air is cooled and contracted, after mist spraying is stopped, the air tank is driven to be heated again, and water is continuously fed into a high-pressure tank in cycles; after the piston drives the plunger to be inserted into the water conveying pipe, along with the continuous increase of the water pressure in the pressure tank, when the water pressure reaches the threshold value of the third one-way liquid valve, the water in the pressure tank is sprayed into the air pipe through the second nozzle, so that the air tank is further cooled, and the cooling efficiency is further improved.

Description

A thermoelectric power generation device Technical Field

[0001] This invention relates to the field of thermoelectric power generation technology, and more particularly to a thermoelectric power generation device. Background Technology

[0002] With the continuous development of economy and technology, the country's demand for electricity is increasing. Traditional power generation technologies, such as thermal power generation, not only consume a lot of energy but also cause a certain degree of pollution. The emergence and application of thermoelectric power generation technology has solved this problem well. The consumption of electricity has led people to continuously utilize resources to generate electricity. By recovering and utilizing heat, thermoelectric power generation can be achieved. The principle of thermoelectric power generation is generally to conduct heat to the tank through high-temperature liquid or gas. After the medium inside the tank is heated, the heat is converted into kinetic energy to drive the generator, realizing thermoelectric power generation. Then the electricity is stored in the battery, and then the medium is cooled by cooling water. The cycle is repeated. However, the current technology only uses a single cooling pipe for cooling. Not only is the cooling speed slow, but the cold water will also get hot over time. After getting hot, the power generation efficiency will decrease and the temperature will be unstable, which will make the power generation unstable or stop, and cannot generate electricity continuously and efficiently. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a thermoelectric power generation device. This invention utilizes an energy storage mechanism that, when the piston drives the plunger into the water supply pipe, and the pressure sensor detects a threshold value, it automatically triggers a cooling mechanism to spray water into the air tank, causing the air to cool and contract. After the spraying stops, the air tank is heated again, and this cycle repeats continuously, continuously supplying water to the high-pressure tank. After the piston drives the plunger into the water supply pipe, as the water pressure in the pressure tank continues to rise, when the water pressure reaches the threshold value of the third one-way valve, the water in the pressure tank is sprayed into the air pipe through a second nozzle, thereby further cooling the air tank and improving cooling efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a thermoelectric power generation device, comprising a base, a water tank formed on the outer wall of the base, an air tank filled with air, a pressure tank filled with water, and a high-pressure tank filled with both air and water fixed on the top outer wall of the water tank, a heat-conducting mechanism for transferring heat to the air tank and a cooling mechanism for cooling the air provided on the outer side of the air tank, an air pipe connected to the pressure tank provided on the outer wall of the air tank, an energy storage mechanism for air expansion provided inside the pressure tank, a water supply pipe connected to the high-pressure tank provided on the outer wall of the pressure tank, and a power-converting mechanism for energy conversion provided on the outer wall of the high-pressure tank, the energy storage mechanism comprising a cylinder fixed on the inner wall of the pressure tank, the cylinder being connected to the air pipe, a piston being slidably inserted into the cylinder, a second nozzle facing the air pipe provided on the outer wall of the piston, a spring provided between the outer wall of the piston away from the air pipe and the inner wall of the pressure tank, and a water inlet pipe extending into the water tank provided on the bottom outer wall of the pressure tank.

[0005] Preferably, a fixed sleeve is provided on the outer wall of the piston, which is coaxially distributed with the air pipe, and the fixed sleeve is connected to the second nozzle. A second one-way liquid valve is installed on the inner wall of the water supply pipe.

[0006] Preferably, a plug is fixed on the outer wall of the piston to block the water supply pipe, and a first one-way liquid valve is installed inside the water inlet pipe.

[0007] Preferably, a third one-way liquid valve is installed on the inner wall of the end of the fixed tube sleeve away from the air pipe, a heat insulation layer is provided on the outer wall of the cylinder, and a chamfer is provided on the inner wall of the end of the cylinder close to the air pipe.

[0008] Preferably, the heat conduction mechanism includes a heating tank fixed to the outer wall of the top of the water tank, the heating tank being sleeved on the outside of the air tank, a plurality of equidistantly distributed heat-conducting fins being welded to the outer wall of the air tank, and a hot water pipe for circulating hot water being provided on the outer wall of the heating tank.

[0009] Preferably, the cooling mechanism includes a water pump fixed to the outer wall of the top of the air tank, the output end of the water pump is equipped with a first nozzle located inside the air tank, the input end of the water pump is connected to the water tank through a pipe, and a drain pipe extending into the water tank is provided on the outer wall of the bottom of the air tank, and an air-water separation valve is provided on the drain pipe.

[0010] Preferably, the working mechanism includes a turbine generator set fixed on the outer wall of the top of the water tank, and a water outlet pipe located diagonally above the turbine generator set is provided on the outer wall of the high-pressure tank. A valve for opening and closing the water outlet pipe is provided on the water outlet pipe, and the turbine generator set is connected to a battery pack via wires.

[0011] Preferably, a control unit is provided on the outer wall of the pressure tank, a pressure sensor is fixed on the outer wall of the piston away from the air pipe, the pressure sensor is electrically connected to the water pump through the control unit, and a pressure switch is installed on the top outer wall of the high-pressure tank. When the high-pressure tank reaches the predetermined pressure, the pressure switch automatically cuts off the power, and the entire system stops working.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention, through the energy storage mechanism, enables the cooling mechanism to spray into the air tank when the piston drives the plunger to insert into the water supply pipe and the detection value of the pressure sensor reaches the threshold, thereby cooling and contracting the air. After the spraying stops, the air tank is heated up again, and the cycle repeats, continuously sending water into the high-pressure tank. After the piston drives the plunger to insert into the water supply pipe, as the water pressure in the pressure tank continues to rise, when the water pressure reaches the threshold of the third one-way liquid valve, the water in the pressure tank is sprayed into the air pipe through the second nozzle, thereby further cooling the air tank and further improving the cooling efficiency.

[0013] 2. The present invention uses a spring to reduce the internal air pressure of the air tank when it cools down. Under the action of the spring, the piston slides towards the side closer to the air pipe, thereby increasing the internal space of the pressure tank and creating a negative pressure. At this time, the first one-way liquid valve opens, and the water in the water tank is automatically filled into the pressure tank through the water inlet pipe. The water mist in the air tank condenses and collects in the drain pipe, and flows back into the water tank through the air-water separation valve, realizing the recycling of water. In addition, the open water tank is conducive to cooling the return water.

[0014] 3. The present invention utilizes a cylinder body. When the air tank is heated, the air inside expands due to the heat, increasing the internal air pressure. This allows high-pressure air to enter the cylinder body through the air pipe and push the piston to compress the spring. The pressure tank is filled with water, which compresses the internal space of the pressure tank during piston movement, thereby increasing the water pressure inside the pressure tank. When the water pressure reaches the threshold of the second one-way valve, the water inside the pressure tank is forced into the high-pressure tank through the water supply pipe, causing the water level in the high-pressure tank to rise. This compresses the air inside the tank, generating potential energy which is temporarily stored in the high-pressure tank, preparing for the operation of the subsequent working mechanism. Attached Figure Description

[0015] Figure 1 is a three-dimensional schematic diagram of the overall structure proposed in this invention; Figure 2 is a three-dimensional sectional schematic diagram of the overall structure proposed in this invention (first view); Figure 3 is a three-dimensional sectional schematic diagram of the overall structure proposed in this invention (second view); Figure 4 is a three-dimensional sectional schematic diagram of the cylinder proposed in this invention; Figure 5 is a three-dimensional sectional schematic diagram of the piston proposed in this invention; Figure 6 is a three-dimensional sectional schematic diagram of the high-pressure tank proposed in this invention; Figure 7 is a three-dimensional sectional schematic diagram of the air tank proposed in this invention.

[0016] Legend: 1. Base; 11. Water tank; 12. Control unit; 2. Air tank; 21. Heat-conducting fins; 22. Drain pipe; 23. Air-water separation valve; 24. Air pipe; 3. Heating tank; 31. Hot water pipe; 4. Pressure tank; 41. Cylinder; 42. Water inlet pipe; 421. First one-way liquid valve; 43. Water supply pipe; 431. Second one-way liquid valve; 5. High-pressure tank; 51. Pressure switch; 52. Water outlet pipe; 521. Valve; 6. Turbine generator set; 7. Water pump; 71. First nozzle; 8. Piston; 81. Spring; 82. Plug; 83. Fixed sleeve; 831. Third one-way liquid valve; 832. Second nozzle; 84. Pressure sensor. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] Referring to Figures 1 to 7, a thermoelectric generator includes a base 1. A water tank 11 is formed on the outer wall of the base 1. An air tank 2 filled with air, a pressure tank 4 filled with water, and a high-pressure tank 5 filled with both air and water are fixed on the top outer wall of the water tank 11. A heat-conducting mechanism for transferring heat to the air tank 2 and a cooling mechanism for cooling the air are provided on the outside of the air tank 2. An air pipe 24 connecting the air tank 2 to the pressure tank 4 is provided on the outer wall of the air tank 2. An energy storage mechanism for air expansion is provided inside the pressure tank 4. A water supply pipe 43 connecting the pressure tank 4 to the high-pressure tank 5 is provided on the outer wall of the pressure tank 4. A work-generating mechanism for energy conversion is provided on the outer wall of the high-pressure tank 5. The heat-conducting mechanism includes a heating tank 3 fixed on the top outer wall of the water tank 11. The heating tank 3 is sleeved on the outside of the air tank 2. A plurality of equidistantly distributed heat-conducting fins 21 are welded on the outer wall of the air tank 2. A hot water pipe 31 for circulating hot water is formed on the outer wall of the heating tank 3.

[0019] It should be noted that hot water is circulated into the heating tank 3 through the hot water pipe 31, so that the hot water that has cooled down flows out quickly and can be replenished in time with hot water. This keeps the heating tank 3 in a relatively stable high-temperature environment. After the heating tank 3 is filled with hot water, the air tank 2 is completely submerged in the hot water, thereby heating the air inside the air tank 2. In addition, the heat-conducting fins 21 can increase the heat exchange area between the air tank 2 and the hot water, thereby improving the heat exchange efficiency and thus improving the power generation efficiency.

[0020] The energy storage mechanism includes a cylinder 41 fixed to the inner wall of the pressure tank 4, the cylinder 41 being connected to the air pipe 24, a piston 8 slidably inserted inside the cylinder 41, a second nozzle 832 facing the air pipe 24 being provided on the outer wall of the piston 8, a spring 81 being provided between the outer wall of the piston 8 away from the air pipe 24 and the inner wall of the pressure tank 4, a water inlet pipe 42 extending into the water tank 11 being provided on the bottom outer wall of the pressure tank 4, and a fixed rod coaxial with the air pipe 24 being provided on the outer wall of the piston 8. The fixed sleeve 83 is connected to the second nozzle 832. A second one-way liquid valve 431 is installed on the inner wall of the water supply pipe 43. A plug 82 that can block the water supply pipe 43 is fixed on the outer wall of the piston 8. A first one-way liquid valve 421 is installed in the water inlet pipe 42. A third one-way liquid valve 831 is installed on the inner wall of the fixed sleeve 83 away from the air pipe 24. A heat insulation layer is provided on the outer wall of the cylinder body 41. A chamfer is opened on the inner wall of the cylinder body 41 near the air pipe 24.

[0021] It should be noted that in the initial state, the air tank 2 is in a low temperature state, and under the action of the spring 81, the piston 8 is located in the cylinder 41 at one end near the air pipe 24.

[0022] When air tank 2 heats up, the air inside expands due to the heat, increasing the internal air pressure. This causes high-pressure air to enter cylinder 41 through air pipe 24 and push piston 8 to compress spring 81. Pressure tank 4 is filled with water, which compresses the internal space of pressure tank 4 as piston 8 moves, increasing the water pressure inside. When the water pressure reaches the threshold of the second one-way valve 431, the water inside pressure tank 4 is forced into high-pressure tank 5 through water pipe 43, causing the water level in high-pressure tank 5 to rise. This compresses the air inside the tank, generating potential energy which is temporarily stored in high-pressure tank 5, preparing for the operation of the subsequent working mechanism.

[0023] Secondly, as the piston 8 continues to slide within the cylinder 41, the piston 8 drives the plunger 82 to insert into the water supply pipe 43, thereby closing the water supply pipe 43. At this time, the water pressure in the pressure tank 4 will continue to rise as the piston 8 moves. When the detection value of the pressure sensor 84 reaches the threshold, the cooling mechanism is automatically triggered to spray into the air tank 2, causing the air to cool and contract. After the spraying stops, the air tank 2 is heated again. This cycle repeats, continuously sending water into the high-pressure tank 5. The pressure threshold of the pressure sensor 84 is greater than the pressure threshold of the second one-way liquid valve 431, ensuring that the energy storage mechanism and the cooling mechanism will not start simultaneously.

[0024] Furthermore, after the piston 8 drives the plunger 82 to insert into the water supply pipe 43, as the water pressure in the pressure tank 4 continues to rise, when the water pressure reaches the threshold of the third one-way liquid valve 831, the water in the pressure tank 4 is sprayed into the air pipe 24 through the second nozzle 832, thereby further cooling the air tank 2 and further improving the cooling efficiency. In order to avoid the third one-way liquid valve 831 and the second one-way liquid valve 431 being triggered at the same time, the pressure threshold of the third one-way liquid valve 831 should be greater than the pressure threshold of the second one-way liquid valve 431.

[0025] Finally, when the air tank 2 cools down, its internal air pressure decreases. Under the action of the spring 81, the piston 8 slides towards the side closer to the air pipe 24, thereby increasing the internal space of the pressure tank 4 and forming a negative pressure. At this time, the first one-way liquid valve 421 opens, and the water in the water tank 11 is automatically filled into the pressure tank 4 through the water inlet pipe 42. The water mist in the air tank 2 condenses and collects in the drain pipe 22, and flows back into the water tank 11 through the air-water separation valve 23, realizing the recycling of water. In addition, the open water tank 11 is conducive to cooling the return water.

[0026] The cooling mechanism includes a water pump 7 fixed on the top outer wall of the air tank 2. The output end of the water pump 7 is equipped with a first nozzle 71 located inside the air tank 2. The input end of the water pump 7 is connected to the water tank 11 through a pipe. A drain pipe 22 extending into the water tank 11 is provided on the bottom outer wall of the air tank 2. An air-water separation valve 23 is provided on the drain pipe 22. A control unit 12 is provided on the outer wall of the pressure tank 4. A pressure sensor 84 is fixed on the outer wall of the piston 8 on the side away from the air pipe 24. The pressure sensor 84 is electrically connected to the water pump 7 through the control unit 12.

[0027] It should be noted that when the pressure sensor 84 detects a value that reaches the threshold, the control unit 12 starts the water pump 7, which sprays the cold water in the water tank 11 into the air tank 2 through the first nozzle 71. This causes the air in the air tank 2 to contract, thereby triggering the piston 8 in the energy storage mechanism to reset. Considering that the water in the water tank 11 will be at a high temperature when working in a high ambient temperature environment, a condensing device can be added to the water tank 11 for active cooling. This prevents the water in the water tank from being continuously heated by the environment when the device is in an extreme high temperature environment. In this case, the water sprayed into the air tank by the cooling mechanism will no longer be cold water, and the air tank will not be cooled. This will cause the piston to fail to reset, the energy storage mechanism to stop, and the entire power generation system to fail completely.

[0028] The working mechanism includes a turbine generator set 6 fixed on the top outer wall of the water tank 11. A water outlet pipe 52 is provided on the outer wall of the high-pressure tank 5, located diagonally above the turbine generator set 6. A valve 521 for opening and closing the water outlet pipe 52 is provided on the water outlet pipe 52. The turbine generator set 6 is connected to the battery pack through wires. A pressure switch 51 is installed on the top outer wall of the high-pressure tank 5. When the high-pressure tank 5 reaches the predetermined pressure, the pressure switch 51 automatically cuts off the power, and the entire system stops working.

[0029] It should be noted that after the internal pressure of the high-pressure tank 5 increases, valve 521 is opened, allowing high-pressure air to push water out of the outlet pipe 52 quickly and drive the turbine generator set 6 to work, converting the potential energy of the water into kinetic energy to do work. Finally, the turbine generator set 6 generates electricity. When the internal pressure of the high-pressure tank 5 reaches the predetermined pressure, the pressure switch 51 is automatically de-energized, and the entire system stops working. At this time, the operator can open valve 521 to actively release the pressure. When the internal pressure of the high-pressure tank 5 decreases, the operator operates the pressure switch 51 to energize, and the system starts working again.

[0030] Working Principle: Under the action of the heat conduction mechanism, hot water is circulated into the heating tank 3 through the hot water pipe 31, allowing the cooled hot water to flow out quickly and be replenished in time with subsequent high-temperature hot water, thus maintaining a relatively stable high-temperature environment inside the heating tank 3. After the heating tank 3 is filled with hot water, the air tank 2 is completely immersed in the hot water, thereby heating the air inside the air tank 2. Furthermore, the heat-conducting fins 21 can increase the heat exchange area between the air tank 2 and the hot water, thereby improving the heat exchange efficiency and thus improving the power generation efficiency. Under the action of the energy storage mechanism, when the air tank 2 heats up, the air inside it expands due to the heat, and the internal air pressure of the air tank 2 increases. The piston 8 moves, causing high-pressure air to enter the cylinder 41 through the air pipe 24 and push the piston 8 to compress the spring 81. The pressure tank 4 is filled with water, and the piston 8 compresses the internal space of the pressure tank 4 during its movement, thus increasing the water pressure inside the pressure tank 4. When the water pressure reaches the threshold of the second one-way valve 431, the water inside the pressure tank 4 is forced into the high-pressure tank 5 through the water supply pipe 43, causing the water level in the high-pressure tank 5 to rise. This compresses the air inside the tank, generating potential energy and temporarily storing it in the high-pressure tank 5, preparing for the operation of the subsequent working mechanism. Secondly, as the piston 8 continues to slide within the cylinder 41, the piston 8 drives the plunger 82 to insert into the pump. The water supply pipe 43 is closed when the piston 8 moves into the water pipe 43. At this time, the water pressure in the pressure tank 4 will continue to rise as the piston 8 moves. When the detection value of the pressure sensor 84 reaches the threshold, the cooling mechanism is automatically triggered to spray into the air tank 2, causing the air to cool and contract. After the spray stops, the air tank 2 will heat up again. This cycle repeats, continuously sending water into the high-pressure tank 5. The pressure threshold of the pressure sensor 84 is greater than the pressure threshold of the second one-way liquid valve 431, ensuring that the energy storage mechanism and the cooling mechanism will not start at the same time. Again, after the piston 8 drives the plunger 82 to insert into the water supply pipe 43, the water pressure in the pressure tank 4 continues to rise. When the water pressure reaches the threshold of the third one-way liquid valve 831, the pressure will continue to rise as the piston 8 moves into the water pipe 43. When the threshold value of pressure tank 4 is reached, water in pressure tank 4 is sprayed into air pipe 24 through second nozzle 832, thereby further cooling air tank 2 and improving cooling efficiency. In order to avoid the third one-way liquid valve 831 and the second one-way liquid valve 431 being triggered at the same time, the pressure threshold of the third one-way liquid valve 831 should be greater than the pressure threshold of the second one-way liquid valve 431. Under the action of the cooling mechanism, when the detection value of pressure sensor 84 reaches the threshold value, control unit 12 starts water pump 7, so that cold water in water tank 11 is sprayed into air tank 2 through first nozzle 71, thereby causing the air in air tank 2 to contract, and thus triggering piston 8 in energy storage mechanism to reset.When air tank 2 cools down, its internal air pressure decreases. Under the action of spring 81, piston 8 slides towards the side closer to air pipe 24, thereby increasing the internal space of pressure tank 4 and creating negative pressure. At this time, the first one-way liquid valve 421 opens, and water in water tank 11 automatically fills pressure tank 4 through water inlet pipe 42. Water mist in air tank 2 condenses and collects in drain pipe 22, and flows back to water tank 11 through air-water separation valve 23, realizing water recycling. The open water tank 11 is also beneficial for cooling the return water. Under the action of the working mechanism, after the internal pressure of high-pressure tank 5 increases, valve 521 opens, allowing high-pressure air to push water out quickly from water outlet pipe 52 and drive turbine generator set 6 to work, converting the potential energy of water into kinetic energy to do work, and finally generating electricity through turbine generator set 6.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A thermoelectric power generation device, comprising a base (1), characterized in that: A water tank (11) is provided on the outer wall of the base (1). An air tank (2) filled with air, a pressure tank (4) filled with water, and a high-pressure tank (5) filled with both air and water are fixed on the top outer wall of the water tank (11). A heat conduction mechanism for transferring heat to the air tank (2) and a cooling mechanism for cooling the air are provided on the outside of the air tank (2). An air pipe (24) connecting the air tank (4) is provided on the outer wall of the air tank (2). An energy storage mechanism for air expansion is provided inside the pressure tank (4). A water supply pipe connecting the pressure tank (5) is provided on the outer wall of the pressure tank (4). The outer wall of the high-pressure tank (5) is provided with a working mechanism for energy conversion; the energy storage mechanism includes a cylinder (41) fixed on the inner wall of the pressure tank (4), the cylinder (41) is connected to the air pipe (24), a piston (8) is slidably inserted in the cylinder (41), a second nozzle (832) facing the air pipe (24) is provided on the outer wall of the piston (8), a spring (81) is provided between the outer wall of the piston (8) away from the air pipe (24) and the inner wall of the pressure tank (4), and a water inlet pipe (42) extending into the water tank (11) is provided on the bottom outer wall of the pressure tank (4).

2. The thermoelectric power generation device according to claim 1, characterized in that: The piston (8) has a fixed sleeve (83) on its outer wall that is coaxial with the air pipe (24). The fixed sleeve (83) is connected to the second nozzle (832). The water pipe (43) has a second one-way liquid valve (431) installed on its inner wall.

3. The thermoelectric power generation device according to claim 2, characterized in that: The piston (8) has a plug (82) fixed on its outer wall that can block the water pipe (43), and a first one-way liquid valve (421) is installed inside the water inlet pipe (42).

4. The thermoelectric power generation device according to claim 2, characterized in that: A third one-way liquid valve (831) is installed on the inner wall of the fixed sleeve (83) away from the air pipe (24). A heat insulation layer is provided on the outer wall of the cylinder (41). A chamfer is provided on the inner wall of the cylinder (41) near the air pipe (24).

5. The thermoelectric power generation device according to claim 1, characterized in that: The heat conduction mechanism includes a heating tank (3) fixed on the outer wall of the top of the water tank (11). The heating tank (3) is sleeved on the outside of the air tank (2). Several heat conduction fins (21) are welded on the outer wall of the air tank (2) at equal intervals. A hot water pipe (31) for circulating hot water is opened on the outer wall of the heating tank (3).

6. The thermoelectric power generation device according to claim 1, characterized in that: The cooling mechanism includes a water pump (7) fixed on the top outer wall of the air tank (2), the output end of the water pump (7) is equipped with a first nozzle (71) located inside the air tank (2), the input end of the water pump (7) is connected to the water tank (11) through a pipe, and a drain pipe (22) extending into the water tank (11) is provided on the bottom outer wall of the air tank (2), and an air-water separation valve (23) is provided on the drain pipe (22).

7. The thermoelectric power generation device according to claim 1, characterized in that: The working mechanism includes a turbine generator set (6) fixed on the outer wall of the top of the water tank (11). The outer wall of the high pressure tank (5) is provided with a water outlet pipe (52) located diagonally above the turbine generator set (6). The water outlet pipe (52) is provided with a valve (521) for opening and closing the water outlet pipe (52). The turbine generator set (6) is connected to the battery pack through wires.

8. The thermoelectric power generation device according to claim 1, characterized in that: A control unit (12) is provided on the outer wall of the pressure tank (4). A pressure sensor (84) is fixed on the outer wall of the piston (8) away from the air pipe (24). The pressure sensor (84) is electrically connected to the water pump (7) through the control unit (12). A pressure switch (51) is installed on the top outer wall of the high pressure tank (5). When the high pressure tank (5) reaches the predetermined pressure, the pressure switch (51) automatically cuts off the power and the whole system stops working.

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