Power generation system

Abstract

This invention discloses a power generation system, which includes a solar energy conversion component, a pumping component, a generator component, and a valve component. The solar energy conversion component's collector converts solar energy into heat energy to heat a solar thermal cavity. Air inside the solar thermal cavity expands and is input to the first end of the housing through an outlet. The pressure generated by the expanded air acts on one end of a pneumatic pumping mechanism, driving the pneumatic pumping mechanism to move towards the second end of the housing, compressing the air inside the second end of the housing. After the air at the second end of the housing is compressed to a certain pressure value, the first valve opens, and the compressed air enters the turbine inlet of the generator component. Solar energy is converted into power to drive the pneumatic pumping mechanism to do work on the air at the second end of the housing. The resulting high-pressure gas provides power to the turbine for generating electricity, thus providing a power generation system that utilizes solar energy for thermoelectric power generation.

Description

Technical Field

[0001] This invention relates to the automotive field, and more particularly to power generation systems. Background Technology

[0002] Vehicles exposed to direct sunlight inevitably suffer from reduced comfort during driving; furthermore, the utilization of solar energy remains a long-standing research topic within the industry. Currently, solar power generation primarily consists of two types: photovoltaic (PV) and thermoelectric. However, technological development for vehicles focuses on PV, as PV devices have limited integration capabilities in traditional vehicles. Furthermore, research and application of thermoelectric power, particularly in the field of air-based thermoelectric power generation, are still in their infancy. Summary of the Invention

[0003] The main objective of this invention is to propose a power generation system that utilizes solar energy for thermoelectric power generation.

[0004] To achieve the above objectives, the present invention provides a power generation system, wherein the power generation system comprises:

[0005] A light energy conversion component includes a collector and a photothermal section. The photothermal section forms a photothermal cavity and an output port communicating with the photothermal cavity. The collector is used to convert light energy into heat energy for heating the air inside the photothermal cavity.

[0006] An air pumping assembly includes a housing and a pneumatic pumping mechanism. The housing extends laterally and has a first end and a second end in the same direction. The first end of the housing has an air inlet communicating with the outlet, and the second end of the housing has an exhaust port. The pneumatic pumping mechanism is slidably disposed laterally within the housing and located between the air inlet and the exhaust port of the housing, having an initial position near the air inlet and a working position near the exhaust port. The pneumatic pumping mechanism is used to compress air at the second end of the housing during its stroke from the initial position to the working position.

[0007] A generator assembly includes a steam turbine and a generator, wherein the steam turbine's inlet is connected to the exhaust outlet of the casing, and the steam turbine is used to drive the generator to generate electricity using high-pressure gas; and,

[0008] The valve assembly includes a first valve for opening and closing the inlet of the steam turbine.

[0009] Optionally, the pneumatic pump mechanism includes:

[0010] A first piston is disposed at the first end of the housing and forms an expansion cavity between it and the end wall of the first end of the housing. An air inlet is provided through the end wall of the first end of the housing. The first piston is slidably disposed in the housing in the lateral direction.

[0011] A second piston, disposed at the second end of the housing, forms a compression chamber between itself and the end wall of the second end of the housing. An exhaust port extends through the end wall of the second end of the housing. The second piston is laterally slidably disposed within the housing. The first piston and the second piston, together with the peripheral wall of the housing, form a transition chamber between the expansion chamber and the compression chamber.

[0012] A connecting rod is disposed between the first piston and the second piston, having a first end and a second end in the lateral direction. The first end of the connecting rod is fixed to the first piston, and the second end of the connecting rod is fixed to the second piston.

[0013] Optionally, the power generation system further includes a gas storage tank, which is connected to the exhaust port of the casing. The gas storage tank is provided with a communication port that is connected to the air inlet of the steam turbine. The gas storage tank is used to store the compressed gas discharged from the exhaust port of the casing during the process of the pneumatic pump mechanism moving to the working position.

[0014] The valve assembly further includes a first check valve, a second check valve, a replenishing valve, an inlet valve, and an exhaust valve. The first check valve is located at the exhaust port of the housing and is used to open when compressed gas flows from the compression chamber to the gas storage tank.

[0015] The wall of the compression chamber is provided with a first air inlet for communication with the outside. The first air inlet is used to communicate with the compression chamber, and the second one-way valve is used to open the first air inlet when the outside atmosphere flows into the compression chamber.

[0016] The cavity wall of the photothermal cavity is provided with a second air supply port, which is used to communicate with the outside. The air supply valve is used to open and close the second air supply port.

[0017] The air inlet of the air inlet valve is connected to the air outlet, and the air outlet of the air inlet valve is connected to the expansion chamber.

[0018] The air inlet of the exhaust valve is connected to the expansion chamber, and the exhaust outlet of the exhaust valve is connected to the outside.

[0019] Optionally, the second end of the housing is formed with a compression channel and a gas supply channel that are both extended laterally and spaced longitudinally, and the ends of the compression channel and the gas supply channel near the transition cavity are both in communication with the transition cavity;

[0020] The second piston is slidably disposed in the compression channel in a transverse direction. The inner wall of the compression channel and the second piston enclose the compression chamber to form the compression cavity. The end of the compression channel away from the transition cavity forms the exhaust port of the housing. The second piston is provided with a first connecting channel that connects the transition cavity and the compression channel. The second one-way valve is used to open and close the first connecting channel. The first connecting channel forms the first air supply port.

[0021] The pneumatic pumping mechanism further includes a third piston, which is slidably disposed laterally within the air supply channel. The inner wall of the air supply channel and the third piston enclose each other to form an air supply chamber. A third air supply port is provided at one end of the air supply channel away from the transition chamber. The third air supply port is connected to the second air supply port. The third piston has a second connecting channel that connects the transition chamber and the air supply chamber. The pneumatic pumping mechanism further includes a third one-way valve, which is used to open when outside air flows into the air supply chamber.

[0022] The second end of the connecting rod is provided with a first connecting part and a second connecting part spaced apart in the longitudinal direction. The first connecting part is fixedly connected to the second piston, and the second connecting part is fixedly connected to the third piston.

[0023] The housing has a through hole in the area corresponding to the transition cavity, so that the transition cavity can communicate with the outside atmosphere.

[0024] Optionally, the cross-sectional area of ​​the first piston is S1, the cross-sectional area of ​​the second piston is S2, and the cross-sectional area of ​​the third piston is S3, wherein S1 > S2 + S3.

[0025] Optionally, the pneumatic pump mechanism further includes a return spring, one end of which is connected to the housing and the other end of which is connected to the pneumatic pump mechanism, for providing a return force during the stroke of the pneumatic pump mechanism from the working position to the initial position.

[0026] Optionally, the intake valve includes:

[0027] An intake valve seat, wherein the intake valve seat forms an intake passage communicating with the intake port and the exhaust port of the intake valve, and the intake valve seat is further provided with a first mounting channel penetrating the inner wall of the intake passage; and,

[0028] A first valve core, wherein an air inlet hole is provided through the first valve core, and the first valve core is slidably disposed along the first mounting channel so as to conduct the photothermal cavity and the expansion cavity when the air inlet hole is aligned with the air inlet channel;

[0029] The exhaust valve includes:

[0030] An exhaust valve seat, wherein the exhaust valve seat forms an exhaust passage connecting the air inlet of the exhaust valve and the exhaust outlet of the exhaust valve, and the exhaust valve seat is further provided with a second mounting channel penetrating the inner wall of the exhaust passage; and,

[0031] The second valve core has an exhaust hole through it and is slidably disposed along the second mounting channel so that when the exhaust hole is aligned with the exhaust passage, the expansion chamber is connected to the outside.

[0032] Optionally, the intake valve and the exhaust valve are spaced apart in the longitudinal direction and are respectively located on both sides of the connecting rod in the transverse direction, and the intake port and the exhaust port are both extended in the longitudinal direction;

[0033] The first valve core is provided with a first magnetic attraction part, and the second valve core is provided with a second magnetic attraction part;

[0034] The connecting rod is provided with a third magnetic attraction part and a fourth magnetic attraction part at intervals in the horizontal direction;

[0035] When the pneumatic pump mechanism is in the initial position, the third magnetic attraction part is arranged corresponding to the first magnetic attraction part and the second magnetic attraction part. The third magnetic attraction part is used to attract the first magnetic attraction part to drive the first valve core to slide, so as to open the air intake passage, and to repel the second magnetic attraction part from driving the second valve core to slide, so as to close the exhaust passage.

[0036] When the pneumatic pump mechanism is in the working position, the fourth magnetic attraction part is arranged corresponding to the first magnetic attraction part and the second magnetic attraction part. The fourth magnetic attraction part is used to attract the second magnetic attraction part to drive the second valve core to slide, so as to open the exhaust passage, and to repel the first magnetic attraction part from driving the first valve core to slide, so as to close the air intake passage.

[0037] Optionally, the longitudinal circumference of the intake valve seat is provided with a magnetic yoke;

[0038] The exhaust valve seat is configured with a magnetic yoke on its longitudinal circumference.

[0039] Optionally, the inner wall of the first installation channel is provided with a plurality of first spring pieces, which are respectively disposed on both sides of the first valve core in the longitudinal direction to provide clamping force when the first valve core slides in the longitudinal direction;

[0040] The inner wall of the second installation channel is provided with a plurality of second springs, which are respectively disposed on both sides of the second valve core in the longitudinal direction to provide clamping force when the second valve core slides in the longitudinal direction.

[0041] In the technical solution provided by this invention, the solar collector converts solar energy into heat energy to heat the solar thermal cavity. After the air in the solar thermal cavity is heated and expands, it is input to the first end of the shell through the output port. The pressure generated by the expanded air acts on the end of the pneumatic pump mechanism near the first end of the shell, thereby driving the pneumatic pump mechanism to move towards the second end of the shell. The pneumatic pump mechanism compresses the air in the second end of the shell. After the air in the second end of the shell is compressed to the required pressure, the first valve opens, and the air inlet of the steam turbine and the exhaust port of the shell are connected. The steam turbine has aerodynamic power as driving power, enabling the steam turbine to generate electricity. Solar energy is converted into power to drive the pneumatic pump mechanism to do work on the air at the second end of the shell. The high-pressure gas generated provides power to the steam turbine for generating electricity, thus providing a power generation system that uses solar energy for thermoelectric power generation. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of an embodiment of the power generation system provided by the present invention;

[0044] Figure 2 for Figure 1 A schematic diagram of the pneumatic pump mechanism in the image;

[0045] Figure 3 for Figure 2 A schematic diagram of the pneumatic pump mechanism in its initial position;

[0046] Figure 4 for Figure 2 A schematic diagram of the pneumatic pump mechanism in the working position;

[0047] Figure 5 for Figure 2 A schematic diagram showing the intake valve in the intake state;

[0048] Figure 6 for Figure 2 A schematic diagram showing the intake valve in the closed state;

[0049] Figure 7 for Figure 2 A schematic diagram showing the exhaust valve in the closed state;

[0050] Figure 8 for Figure 2 A schematic diagram of the exhaust valve in the exhaust state;

[0051] Figure 9 for Figure 1 A schematic diagram of the power generation control module;

[0052] Figure 10 for Figure 1 A schematic diagram of the power generation process in a power generation system.

[0053] Explanation of icon numbers:

[0054]

[0055]

[0056] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0058] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0059] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0060] Vehicles exposed to direct sunlight inevitably suffer from reduced comfort during driving; furthermore, the utilization of solar energy remains a long-standing research topic within the industry. Currently, solar power generation primarily consists of two types: photovoltaic (PV) and thermoelectric. However, technological development for vehicles focuses on PV, as PV devices have limited integration capabilities in traditional vehicles. Furthermore, research and application of thermoelectric power, particularly in the field of air-based thermoelectric power generation, are still in their infancy.

[0061] To address the aforementioned problems, the present invention provides a power generation system 100. Figures 1 to 10 This is a specific embodiment of the power generation system 100 provided by the present invention.

[0062] Please see Figures 1 to 4 The power generation system 100 includes a solar energy conversion component 1, a pumping component, a generator component 4, and a valve component. The solar energy conversion component 1 includes a collector 11 and a solar thermal section 12. The solar thermal section 12 forms a solar thermal cavity 12a and an output port 12b communicating with the solar thermal cavity 12a. The collector 11 is used to convert solar energy into thermal energy for heating the air inside the solar thermal cavity 12a. The pumping component includes a housing 2 and a pneumatic pumping mechanism 3. The housing 2 extends laterally and has a first end and a second end in the lateral direction. The first end of the housing 2 has an air inlet communicating with the output port 12b, and the second end of the housing 2 has an exhaust port. The pneumatic pumping mechanism 3 is slidably arranged laterally. The pneumatic pumping mechanism 3 is located within the housing 2 and between the air inlet 2a and the exhaust port 2b of the housing 2, having an initial position close to the air inlet 2a and a working position close to the exhaust port 2b of the housing 2. During its stroke from the initial position to the working position, the pneumatic pumping mechanism 3 compresses the air at the second end of the housing 2. The generator assembly 4 includes a steam turbine 41 and a generator. The air inlet of the steam turbine 41 is connected to the exhaust port 2b of the housing. The steam turbine 41 is used to generate electricity using high-pressure gas and to drive the generator to generate electricity using high-pressure gas. The valve assembly includes a first valve for opening and closing the air inlet of the steam turbine 41.

[0063] In the technical solution provided by the present invention, the solar collector 11 converts solar energy into heat energy to heat the solar thermal cavity 12a. After the air in the solar thermal cavity 12a is heated and expanded, it is input to the first end of the shell 2 through the output port 12b. The pressure generated by the expanded air acts on the end of the pneumatic pump mechanism 3 near the first end of the shell 2, thereby driving the pneumatic pump mechanism 3 to move towards the second end of the shell 2. The pneumatic pump mechanism 3 compresses the air in the second end of the shell 2. After the air in the second end of the shell 2 is compressed to the required pressure, the first valve opens, and the air inlet of the steam turbine 41 is connected to the exhaust port 2b of the shell. The steam turbine 41 has aerodynamic power as driving power, so that the steam turbine 41 can generate electricity. The solar energy is converted into power to drive the pneumatic pump mechanism 3 to do work on the air at the second end of the shell 2. The high-pressure gas generated provides power to the steam turbine 41 for generating electricity, so as to provide a power generation system 100 for using solar energy for thermoelectric power generation.

[0064] It should be noted that since the solar collector 11 is integrated into the vehicle roof, it can provide additional electrical energy to the vehicle, contributing to fuel economy to some extent. Furthermore, when considering the vehicle roof directly as the solar collector 11, this system has advantages over photovoltaic power generation systems in terms of lightweight design and portability. Additionally, because the solar collector 11 absorbs sunlight by installing the power generation system 100 on the roof, it insulates against the heat generated by sunlight, largely solving the problem of roof overheating in summer, improving driving comfort while reducing the electricity consumption from additional air conditioning cooling.

[0065] Specifically, please refer to Figure 2In this embodiment, the pneumatic pump mechanism 3 includes a first piston 31, a second piston 32, and a connecting rod 33. The first piston 31 is disposed at the first end of the housing 2 and forms an expansion cavity 3a between itself and the end wall of the first end of the housing 2. The end wall of the first end of the housing 2 is provided with an air inlet 2a. The first piston 31 is slidably disposed in the housing 2 in the transverse direction. After the gas in the photothermal cavity 12a expands, it enters the expansion cavity 3a of the first end of the housing 2 through the output port 12b and the air inlet 2a of the housing 2. When the two end faces of the first piston 31 in the transverse direction are subjected to uneven transverse pressure, the first piston 31 will move towards the side with less pressure. The second piston 32 is disposed at the second end of the housing 2, forming a compression cavity 3b between itself and the end wall of the second end of the housing 2. The end wall of the second end of the housing 2 has an exhaust port 2b extending through it. The second piston 32 is slidably disposed on the housing 2 laterally. Similarly, when the two end faces of the second piston 32 are subjected to unequal lateral pressure, the second piston 32 will move towards the side with less pressure. When the second piston 32 moves towards the exhaust port 2b of the housing, the air at the second end of the housing 2 is compressed, and the gas pressure increases. The first piston 31 and the second piston 32, together with the peripheral wall of the housing 2, form a transition cavity 3c located between the expansion cavity 3a and the compression cavity 3b. The connecting rod 33 is disposed between the first piston 31 and the second piston 32, and has a first end and a second end in the lateral direction. The first end of the connecting rod 33 is fixed to the first piston 31, and the second end of the connecting rod 33 is fixed to the second piston 32. Therefore, the driving force on the first piston 31 is applied to the second piston 32 through the connecting rod 33. Through the work done by the movement of the second piston 32, the air at the second end of the housing 2 is compressed, thereby providing compressed air into the air storage tank 5.

[0066] Furthermore, in order to enable the second end of the housing 2 to store more compressed air and provide sufficient power, please refer to [link to relevant documentation]. Figure 2 In this embodiment, the power generation system 100 further includes a gas storage tank 5, which is connected to the exhaust port 2b of the housing. The gas storage tank 5 is provided with a communication port that is connected to the air inlet of the steam turbine 41. The gas storage tank 5 is used to store the compressed gas discharged from the exhaust port 2b of the housing before the pneumatic pumping mechanism 3 moves to the working position.

[0067] To facilitate the collection of high-pressure gas discharged from the exhaust port 2b of the housing by the gas storage tank 5, please refer to [link / reference needed]. Figure 1 and Figure 2In this embodiment, the valve assembly further includes a first one-way valve 61, a second one-way valve 62, a replenishing valve 63, an intake valve 64, and an exhaust valve 65. The first one-way valve 61 is located at the exhaust port 2b of the housing and is used to open when compressed gas flows from the compression chamber 3b to the gas storage tank 5. The wall of the compression chamber 3b is provided with a first replenishing port 3d for communication with the outside. The first replenishing port 3d is used to communicate with the compression chamber 3b. The second one-way valve 62... The first gas inlet 3d is used to connect and disconnect the gas inlet 3d; the cavity wall of the photothermal cavity 12a is provided with a second gas inlet 12c, which is used to communicate with the outside. The gas inlet valve 63 is used to open and close the second gas inlet 12c; the inlet of the inlet valve 64 is connected to the outlet 12b, and the outlet of the inlet valve 64 is connected to the expansion cavity 3a through 2a; the inlet of the exhaust valve 65 is connected to the expansion cavity 3a, and the outlet of the exhaust valve 65 is connected to the outside. The second piston 32 moves toward the exhaust outlet 2b near the housing. When the air pressure in the compression cavity 3b is greater than the air pressure in the gas storage tank 5, the first one-way valve 61 opens. At this time, the air pressure P1 in the gas storage tank 5 slowly exceeds P0.

[0068] In order for the gas storage tank 5 to continuously collect high-pressure gas, the pneumatic pump mechanism 3 needs to reciprocate laterally within the housing 2. During this process, air needs to be introduced into the compression chamber 3b to facilitate repeated compression of the gas at the second end of the housing 2 by the second piston 32. It should be noted that the first air inlet 3d is connected to the outside, and the air pressure introduced into the compression chamber 3b is P0. Since P1 > P0, the first one-way valve 61 is closed, creating a closed compression space in the compression chamber 3b.

[0069] When the pneumatic pump mechanism 3 moves towards the air inlet 2a of the housing 2, the air pressure in the expansion chamber 3a is relatively high, hindering the sliding of the first piston 31. Therefore, it is necessary to depressurize the expansion chamber 3a. This causes the air inlet valve 64 to close and the air outlet valve 65 to open, allowing the high-temperature, high-pressure gas in the expansion chamber 3a to be discharged through the exhaust port of the air outlet valve 65, restoring the air pressure in the expansion chamber 3a to P0. At this point, both ends of the pneumatic pump mechanism 3 are at atmospheric pressure P0, and the pneumatic pump mechanism 3 can return to its initial position. Furthermore, after the pneumatic pump mechanism 3 returns to its initial position, because the photothermal cavity continues to be heated, the air inside the photothermal cavity continues to be heated, and its internal air pressure is greater than P0. In order to replenish the air in the photothermal cavity 12a, the replenishment valve 63 needs to be opened when the air pressure in the replenishment chamber 3f is greater than P0. As the pneumatic pump mechanism moves towards the working position, the air in the replenishment chamber 3f is gradually compressed, and the air pressure gradually increases. When the pressure rises to a level comparable to that in the photothermal chamber 12a, the replenishment valve 63 opens, and the pneumatic pump mechanism continues to move towards the working position, replenishing the photothermal chamber 12a with new air. After the pneumatic pump mechanism 3 returns to the initial position, the exhaust valve 65 closes, the replenishment valve 63 closes, and the intake valve 64 opens. The air in the photothermal chamber 12a continues to expand due to the heating effect of the collector 11, and the expanded gas re-enters the expansion chamber 3a, driving the pneumatic pump mechanism 3 to compress the air in the compression chamber 3b.

[0070] With this configuration, during the transverse reciprocating motion of the pneumatic pump mechanism 3, the second piston 32 continuously compresses the air at the second end of the housing 2 and delivers it to the air storage tank 5. Then, during the return stroke, it replenishes the outside atmosphere into the compression chamber 3b and the air replenishment chamber 3f. During the stroke of compressing the compression chamber 3b again, it compresses the air at the second end of the housing 2 and delivers it to the air storage tank 5, so that the air storage tank 5 can store more high-pressure gas to continuously drive the steam turbine 41 to generate electricity.

[0071] Furthermore, for convenience in replenishing gas to the photothermal cavity 12a, please refer to [link / reference needed]. Figure 2 and Figure 3In this embodiment, the second end of the housing 2 has a compression channel 2c and a replenishment channel 2d that are both longitudinally spaced and extend laterally. The ends of the compression channel 2c and the replenishment channel 2d near the transition cavity 3c are both connected to the transition cavity 3c. The second piston 32 is slidably disposed laterally within the compression channel 2c. The inner wall of the compression channel 2c and the second piston 32 enclose the compression cavity 3b. The end of the compression channel 2c away from the transition cavity 3c forms the exhaust port 2b of the housing. The second piston 32 has a first connecting channel 32a that connects the transition cavity 3c and the compression channel 2c. The second one-way valve 62 is used to open and close the first connecting channel 32a. 2a, the first connecting channel 32a forms the first air supply port 3d; the power generation system 100 also includes a third piston 34, which is slidably disposed laterally within the air supply channel 2d. The inner wall of the air supply channel 2d and the third piston 34 enclose each other to form an air supply chamber 3f. The air supply channel 2d has a third air supply port 3e at one end away from the transition chamber 3c. The third air supply port 3e is connected to the second air supply port 12c. The third piston 34 has a second connecting channel 34a that connects the transition chamber 3c and the air supply chamber 3f. The pneumatic pump mechanism 3 also includes a third one-way valve 66, which is used to open and close the second connecting channel 34a.

[0072] To facilitate the synchronous driving of the second piston 32 and the third piston 34, please refer to... Figure 2The second end of the connecting rod 33 is longitudinally spaced with a first connecting portion 331 and a second connecting portion 332. The first connecting portion 331 is fixedly connected to the second piston 32, and the second connecting portion 332 is fixedly connected to the third piston 34. The housing 2 is provided with a through hole 2e in the area corresponding to the transition cavity 3c, so that the transition cavity 3c is in communication with the outside atmosphere. With this configuration, when the first piston 31 moves toward the end near the exhaust port 2b of the housing, the intake valve 64 opens and the exhaust valve 65 closes. The second piston 32 compresses the air in the compression cavity 3b. At this time, the third one-way valve 66 closes. Because the third air supply port 3e is connected to the second air supply port 12c, the third piston 34 replenishes the air in the air supply cavity 3f into the photothermal cavity 12a, so that the photothermal cavity 12a is always filled with air. When the first piston 31 moves toward the end near the air inlet 2a of the housing 2, the air inlet valve 64 closes, the air outlet valve 65 opens, the gas in the expansion chamber 3a is discharged through the air outlet valve 65, the second one-way valve 62 opens, the compression chamber 3b is connected to the transition chamber 3c, and is connected to the outside atmosphere through the through hole 2e, so that air can be added to the compression chamber 3b; the third one-way valve 66 opens, and air is added to the air supply chamber 3f.

[0073] Furthermore, in this embodiment, the cross-sectional area of ​​the first piston 31 is S1, the cross-sectional area of ​​the second piston 32 is S2, and the cross-sectional area of ​​the third piston 34 is S3, wherein S1 > S2 + S3. Since F = PS, when P is constant, F is proportional to S. The larger S is, the larger F is. When the pressure in the expansion chamber 3a is large and the cross-sectional area S1 > S2 + S3, the pressures acting on the two ends of the pneumatic pump mechanism 3 in the transverse direction are unequal, which will smoothly drive the pneumatic pump mechanism 3 to slide automatically toward the exhaust port 2b of the housing.

[0074] Furthermore, in order to enable the pneumatic pump mechanism 3 to automatically switch between the working position and the initial position, please refer to... Figures 3 to 4In this embodiment, the power generation system 100 further includes a return spring 35. One end of the return spring 35 is connected to the housing 2, and the other end is connected to the pneumatic pump mechanism 3. The return spring 35 provides a reset force during the stroke of the pneumatic pump mechanism 3 from the working position back to the initial position. Thus, when the pneumatic pump mechanism 3 is in the working position, after the gas storage tank 5 stores gas, it needs to be driven towards the initial position. At this time, the inlet valve 64 is closed, the exhaust valve 65 is open, the atmospheric pressure in the expansion chamber 3a approaches P0, the second one-way valve 62 is open, the atmospheric pressure in the compression chamber 3b approaches P0, and the third one-way valve 66 is open, also approaching P0. Since S1 > S2 + S3, a force is needed to act on the pneumatic pump mechanism 3 to drive it towards the housing 2. The air inlet 2a moves in the direction of the return spring 35, which can be sleeved on the first connecting part 331. The first connecting part 331 extends laterally. The return spring 35 is compressed when the connecting rod 33 moves towards the exhaust port 2b of the housing, storing elastic potential energy. When the connecting rod 33 moves towards the air inlet 2a of the housing 2, the return spring 35 releases the elastic potential energy, driving the connecting rod 33 to move the first piston 31, the second piston 32 and the third piston 34, so that the pneumatic pump mechanism 3 can return to the initial position.

[0075] Specifically, please refer to Figures 5 to 6 In this embodiment, the intake valve 64 includes an intake valve seat 641 and a first valve core 642. An intake passage 641a is formed, connecting the intake port and the exhaust port of the intake valve 64. The intake valve seat 641 is also provided with a first mounting channel 641b penetrating the inner wall of the intake passage 641a. The first valve core 642 is provided with an intake hole 642a. The first valve core 642 is slidably disposed along the first mounting channel 641b. When the intake hole 642a is aligned with the intake passage 641a, the hot air of the photothermal cavity 12a will enter the expansion cavity 3a through the intake passage 641a to connect the photothermal cavity 12a and the expansion cavity 3a. When the intake hole 642a is misaligned with the intake passage 641a, the first valve core 642 disconnects the intake passage 641a to isolate the photothermal cavity 12a and the expansion cavity 3a.

[0076] Specifically, please refer to Figures 7 to 8The exhaust valve 65 includes an exhaust valve seat 651 and a second valve core 652. The exhaust valve seat 651 forms an exhaust passage 651a that connects the air inlet and the exhaust outlet of the exhaust valve 65. The exhaust valve seat 651 is also provided with a second mounting channel 651b that penetrates the inner wall of the exhaust passage 651a. The second valve core 652 is provided with an exhaust hole 652a. The second valve core 652 is slidably disposed along the second mounting channel 651b so that when the exhaust hole 652a is aligned with the exhaust passage 651a, the expansion chamber 3a is connected to the outside world to conduct the expansion chamber 3a and the outside atmosphere. When the exhaust hole 652a is misaligned with the exhaust passage 651a, the second valve core 652 disconnects the exhaust passage 651a so that the expansion chamber 3a is isolated from the outside atmosphere.

[0077] Specifically, in order to drive the first valve core 642 and the second valve core 652 to slide when needed, thereby achieving the functions of conduction and isolation, in this embodiment, the intake valve 64 and the exhaust valve 65 are spaced apart in the longitudinal direction and are respectively located on both sides of the connecting rod 33 in the transverse direction. The intake port 642a and the exhaust port 652a both extend longitudinally. The first valve core 642 is provided with a first magnetic attraction part 643, and the second valve core 652 is provided with a second magnetic attraction part 653. The connecting rod 33 is provided with a third magnetic attraction part 36 and a fourth magnetic attraction part 37 spaced apart in the transverse direction. When the pneumatic pump mechanism 3 is in the initial position, the third magnetic attraction part 36 is correspondingly arranged with the first magnetic attraction part 643 and the second magnetic attraction part 653. The magnetic poles of the third magnetic attraction part 36 and the first magnetic attraction part 643 are opposite, so that the third magnetic attraction part 36 can attract the first magnetic attraction part 643 to drive the first valve core 642 to slide, thereby opening the air intake passage 641a. However, the magnetic poles of the third magnetic attraction part 36 are the same as the magnetic poles of the second magnetic attraction part 653, thus repelling the second magnetic attraction part 653 from driving the second valve core 652 to slide, thereby closing the exhaust passage 651a.

[0078] When the pneumatic pump mechanism 3 is in the working position, the fourth magnetic attraction part 37 is correspondingly arranged with the first magnetic attraction part 643 and the second magnetic attraction part 653. The magnetic poles of the fourth magnetic attraction part 37 and the second magnetic attraction part 653 are arranged oppositely, so that the fourth magnetic attraction part 37 is used to attract the second magnetic attraction part 653 to drive the second valve core 652 to slide, so as to open the exhaust passage 651a. The magnetic poles of the fourth magnetic attraction part 37 and the first magnetic attraction part 643 are arranged the same, so as to repel the first magnetic attraction part 643 from driving the first valve core 642 to slide, so as to close the air intake passage 641a.

[0079] Furthermore, to prevent the intake valve 64 and the exhaust valve 65 from being affected by the third magnetic attraction part 36 and the fourth magnetic attraction part 37 being in non-corresponding positions, in this embodiment, the circumference of the intake valve seat 641 in the longitudinal direction is provided as a magnetic yoke, and the circumference of the exhaust valve seat 651 in the longitudinal direction is also provided as a magnetic yoke. In this way, the magnetic yoke guides the magnetic fields of the first magnetic attraction part 643 and the second magnetic attraction part 653, confining the magnetic fields within a set range, allowing the magnetic valves to exert their magnetic force at precise positions.

[0080] Furthermore, since the first valve core 642 and the second valve core 652 can be slidably disposed, in order to avoid misoperation, such as shaking caused by vehicle bumps, which would cause the intake valve 64 and the exhaust valve 65 to be out of control, in this embodiment, the inner wall of the first mounting channel 641b is provided with a plurality of first spring pieces 644. The plurality of first spring pieces 644 are respectively disposed on both sides of the first valve core 642 in the longitudinal direction to provide clamping force when the first valve core 642 slides in the longitudinal direction. Since the plurality of first spring pieces 644 can undergo elastic deformation, the friction and extrusion forces generated by the plurality of first spring pieces 644 disposed on both sides of the first valve core 642 prevent the first valve core 642 from sliding arbitrarily. When the first valve core 642 is subjected to repulsive or attractive forces, it will overcome the friction and extrusion forces and slide up and down. Similarly, the inner wall of the second mounting channel 651b is provided with a plurality of second spring pieces 654, which are respectively disposed on both sides of the second valve core 652 in the longitudinal direction to provide clamping force when the second valve core 652 slides in the longitudinal direction. With this arrangement, the position of the first valve core 642 and the second valve core 652 can be controlled by the flexibility of the spring pieces.

[0081] Please see Figure 9 The power generation control module of this system includes a power supply unit, a control unit, a pressure sensor, a solenoid valve, and connecting pipes. The pipes connect the outlet of the gas storage tank 5 to the inlet of the turbine 41. The pressure sensor monitors the pressure in the gas storage tank 5. The solenoid valve controls the opening and closing of the pipes. The control unit determines the pressure conditions and controls the solenoid valve. The battery unit powers the control unit and contains a built-in rechargeable dry cell battery. A DC-DC converter is connected in parallel to convert the electricity output from the generator to charge the dry cell battery. The module contains wires connecting to the generator, and the output ports of the wires are equipped with anti-reverse diodes to prevent reverse input of external power current.

[0082] Please see Figure 10The power generation process of the steam turbine 41 is as follows: The power generation system 100 continuously stores high-pressure air into the air storage tank 5. When the air pressure reaches the preset value, the solenoid valve inside the control module is opened, and the high-pressure air enters the power generation mechanism to drive the steam turbine 41 to drive the generator to generate electricity. The air is then output to the outside after passing through the control module. At the same time, the DC-DC converter of the power supply unit inside the module starts to work and charges the dry cell battery, while simultaneously supplying power to the module.

[0083] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A power generation system, characterized in that, include: A light energy conversion component includes a collector and a photothermal section. The photothermal section forms a photothermal cavity and an output port communicating with the photothermal cavity. The collector is used to convert light energy into heat energy for heating the air inside the photothermal cavity. An air pumping assembly includes a housing and a pneumatic pumping mechanism. The housing extends laterally and has a first end and a second end in the same direction. The first end of the housing has an air inlet communicating with the outlet. The second end of the housing has an exhaust port. The pneumatic pumping mechanism is slidably disposed laterally within the housing and located between the air inlet and the exhaust port of the housing, having an initial position near the air inlet and a working position near the exhaust port. The pneumatic pumping mechanism is used to compress air at the second end of the housing during its stroke from the initial position to the working position. A generator assembly includes a steam turbine and a generator, wherein the steam turbine's inlet is connected to the exhaust port of the casing, and the steam turbine is used to drive the generator to generate electricity using high-pressure gas; as well as, A valve assembly, including a first valve for opening and closing the inlet of the steam turbine; The pneumatic pump mechanism includes: A first piston is disposed at the first end of the housing and forms an expansion cavity between it and the end wall of the first end of the housing. An air inlet is provided through the end wall of the first end of the housing. The first piston is slidably disposed in the housing in the transverse direction. A second piston, disposed at the second end of the housing, forms a compression chamber between itself and the end wall of the second end of the housing. An exhaust port is provided through the end wall of the second end of the housing. The second piston is slidably disposed laterally within the housing. The first piston and the second piston, together with the peripheral wall of the housing, form a transition chamber located between the expansion chamber and the compression chamber. A connecting rod is disposed between the first piston and the second piston, having a first end and a second end in the lateral direction. The first end of the connecting rod is fixed to the first piston, and the second end of the connecting rod is fixed to the second piston. The power generation system also includes a gas storage tank, which is connected to the exhaust port of the casing. The gas storage tank is provided with a connection port that is connected to the air inlet of the steam turbine. The gas storage tank is used to store the compressed gas discharged from the exhaust port of the casing during the process of the pneumatic pump mechanism moving to the working position. The valve assembly further includes a first check valve, a second check valve, a replenishing valve, an inlet valve, and an exhaust valve. The first check valve is located at the exhaust port of the housing and is used to open when compressed gas flows from the compression chamber to the gas storage tank. The wall of the compression chamber is provided with a first air inlet for communication with the outside. The first air inlet is used to communicate with the compression chamber, and the second one-way valve is used to open the first air inlet when the outside atmosphere flows into the compression chamber. The cavity wall of the photothermal cavity is provided with a second air supply port, which is used to communicate with the outside. The air supply valve is used to open and close the second air supply port. The air inlet of the air inlet valve is connected to the air outlet, and the air outlet of the air inlet valve is connected to the expansion chamber. The air inlet of the exhaust valve is connected to the expansion chamber, and the exhaust outlet of the exhaust valve is connected to the outside. The second end of the housing is formed with a compression channel and a gas supply channel that are both extended laterally and spaced longitudinally. The ends of the compression channel and the gas supply channel near the transition cavity are both connected to the transition cavity. The second piston is slidably disposed in the compression channel in a transverse direction. The inner wall of the compression channel and the second piston enclose the compression chamber to form the compression cavity. The end of the compression channel away from the transition cavity forms the exhaust port of the housing. The second piston is provided with a first connecting channel that connects the transition cavity and the compression channel. The first connecting channel forms the first air supply port. The pneumatic pumping mechanism further includes a third piston, which is slidably disposed laterally within the air supply channel. The inner wall of the air supply channel and the third piston enclose each other to form an air supply chamber. A third air supply port is provided at one end of the air supply channel away from the transition chamber. The third air supply port is connected to the second air supply port. The third piston has a second connecting channel that connects the transition chamber and the air supply chamber. The pneumatic pumping mechanism further includes a third one-way valve, which is used to open when outside air flows into the air supply chamber. The second end of the connecting rod is provided with a first connecting part and a second connecting part spaced apart in the longitudinal direction. The first connecting part is fixedly connected to the second piston, and the second connecting part is fixedly connected to the third piston. The housing has a through hole in the area corresponding to the transition cavity, so that the transition cavity can communicate with the outside atmosphere.

2. The power generation system as described in claim 1, characterized in that, The cross-sectional area of ​​the first piston is S1, the cross-sectional area of ​​the second piston is S2, and the cross-sectional area of ​​the third piston is S3, wherein S1 > S2 + S3.

3. The power generation system as described in claim 2, characterized in that, The pneumatic pump mechanism also includes a return spring, one end of which is connected to the housing and the other end of which is connected to the pneumatic pump mechanism. The return spring is used to provide a return force during the stroke of the pneumatic pump mechanism from the working position to the initial position.

4. The power generation system as described in claim 1, characterized in that, The intake valve includes: An intake valve seat, wherein the intake valve seat forms an intake passage communicating with the intake port and the exhaust port of the intake valve, and the intake valve seat is further provided with a first mounting channel penetrating the inner wall of the intake passage; and, A first valve core, wherein an air inlet hole is provided through the first valve core, and the first valve core is slidably disposed along the first mounting channel so as to conduct the photothermal cavity and the expansion cavity when the air inlet hole is aligned with the air inlet channel; The exhaust valve includes: An exhaust valve seat, wherein the exhaust valve seat forms an exhaust passage connecting the air inlet of the exhaust valve and the exhaust outlet of the exhaust valve, and the exhaust valve seat is further provided with a second mounting channel penetrating the inner wall of the exhaust passage; and, The second valve core has an exhaust hole through it and is slidably disposed along the second mounting channel so that when the exhaust hole is aligned with the exhaust passage, the expansion chamber is connected to the outside.

5. The power generation system as described in claim 4, characterized in that, The intake valve and the exhaust valve are spaced apart in the longitudinal direction and are respectively located on both sides of the connecting rod in the transverse direction. The intake port and the exhaust port are both extended in the longitudinal direction. The first valve core is provided with a first magnetic attraction part, and the second valve core is provided with a second magnetic attraction part; The connecting rod is provided with a third magnetic attraction part and a fourth magnetic attraction part at intervals in the horizontal direction; When the pneumatic pump mechanism is in the initial position, the third magnetic attraction part is arranged corresponding to the first magnetic attraction part and the second magnetic attraction part. The third magnetic attraction part is used to attract the first magnetic attraction part to drive the first valve core to slide, so as to open the air intake passage, and to repel the second magnetic attraction part from driving the second valve core to slide, so as to close the exhaust passage. When the pneumatic pump mechanism is in the working position, the fourth magnetic attraction part is arranged corresponding to the first magnetic attraction part and the second magnetic attraction part. The fourth magnetic attraction part is used to attract the second magnetic attraction part to drive the second valve core to slide, so as to open the exhaust passage, and to repel the first magnetic attraction part from driving the first valve core to slide, so as to close the intake passage.

6. The power generation system as described in claim 4, characterized in that, The intake valve seat is configured with a magnetic yoke on its longitudinal circumference; The exhaust valve seat is configured with a magnetic yoke on its longitudinal circumference.

7. The power generation system as described in claim 4, characterized in that, The inner wall of the first installation channel is provided with a plurality of first spring pieces, which are respectively disposed on both sides of the first valve core in the longitudinal direction to provide clamping force when the first valve core slides in the longitudinal direction; The inner wall of the second installation channel is provided with a plurality of second springs, which are respectively disposed on both sides of the second valve core in the longitudinal direction to provide clamping force when the second valve core slides in the longitudinal direction.

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