Sun-tracking steam power generation system

Abstract

A sun-tracking steam power generation system, comprising a solar energy collection assembly, a power device, and a generator. The solar energy collection assembly comprises a frame, a Fresnel lens, a connecting member, a connecting rod assembly, a first driving member, a second driving member, and a steam pipe; the first driving member is arranged on the frame and is connected to the connecting member so as to drive the connecting member to swing around a first swing axis; the second driving member is arranged on the connecting member and is connected to the connecting rod assembly so as to drive the connecting rod assembly to swing around a second swing axis; and the Fresnel lens focuses light to the steam pipe to heat water in the steam pipe to generate steam, and the steam is outputted from an output end of the steam pipe to drive the power device to operate, so that the power device drives the generator to operate to generate electric energy.

Description

Sun-chasing steam power generation system Technical Field

[0001] This invention relates to a power generation system; in particular, it refers to a sun-tracking steam power generation system. Background Technology

[0002] It is known that in order to reduce carbon emissions and reduce pollution generated by power generation, adopting environmentally friendly renewable energy power supply devices such as solar power generation is a current industry trend. Existing solar power supply devices are devices that convert sunlight into electricity. Although they can reduce carbon emissions and reduce pollution generated by power generation, the current adoption rate of existing solar power supply devices is not high due to their high manufacturing and installation costs.

[0003] In addition, existing solar power generation devices are easily affected by factors such as geography, season, weather and sunshine, which can affect the power generation. Therefore, how to provide a low-cost and stable power generation system is an urgent problem to be solved. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a sun-tracking steam power generation system that can reduce manufacturing and installation costs and provide a stable power generation.

[0005] To achieve the above objectives, the present invention provides a solar-tracking steam power generation system comprising a solar energy collection component, a power unit, and a generator. The solar energy collection component includes a frame, a Fresnel lens, a connector, a linkage assembly, a first driver, a second driver, and a steam pipe. The linkage assembly is pivotally mounted on the connector, the Fresnel lens and the steam pipe are disposed on the linkage assembly, the first driver is disposed on the frame and connected to the connector to drive the connector to swing about a first swing axis, and the second driver is disposed on the connector and connected to the linkage assembly to drive the linkage assembly to swing about a second swing axis. The power unit is connected to an output end of the steam pipe, and the generator is connected to the power unit. The Fresnel lens focuses light onto the steam pipe to heat the water in the steam pipe, thereby generating steam which is output from the output end to drive the power unit, which in turn drives the generator to generate electricity.

[0006] The advantages of this invention are that, compared to existing solar panel power generation systems, the sun-tracking steam power generation system of this invention can significantly reduce manufacturing and installation costs. In addition, the design of the connector swinging around the first swing axis allows the Fresnel lens to swing with the solar trajectory formed by the Earth's rotation around the first swing axis, thereby increasing power generation. Furthermore, the design of the linkage assembly swinging around the second swing axis allows the Fresnel lens to adjust its tilt angle with the trajectory of the changing solar incidence angle formed by the Earth's revolution around the sun, thereby further increasing power generation. Attached Figure Description

[0007] Figure 1 is a schematic diagram of a sun-chasing steam power generation system according to a first preferred embodiment of the present invention.

[0008] Figure 2 is a schematic diagram of the sun-chasing steam power generation system of the above preferred embodiment.

[0009] Figure 3 is a schematic diagram of the sun-chasing steam power generation system of the above preferred embodiment.

[0010] Figure 4 is a schematic diagram of the sun-chasing steam power generation system of the above preferred embodiment.

[0011] Figure 5 is a schematic diagram of a sun-chasing steam power generation system according to a second preferred embodiment of the present invention.

[0012] Figure 6 is a schematic diagram of a sun-chasing steam power generation system according to another preferred embodiment of the present invention.

[0013] Figure reference numerals 1,2: Sun-tracking steam power generation system; 10: Solar energy collection component; 11: Frame; 12: Fresnel lens; 12a: Light-collecting surface; 13: Connector; 14: Link assembly; 141: First link; 142: Second link; 143: Third link bracket; 15: First actuator; 16: Second actuator; 17: Steam pipe; 17a: Output end; 20, 20': Power unit; 21: Piston; 22: Cylinder; 22a: Drain hole; 23: Flywheel assembly; 30, 30': Generator. 40: Motor; 42: Water collection tank; 44: Air release valve; 50: Return water motor; 52: Water storage tank; 60: Check valve; 70: Water supply pipeline; 72: Steam pressure cylinder; 72: Exhaust valve; A1: First swing axis; A2: Second swing axis; d: Minimum distance; D: Predetermined distance; G: Combination; h: Height; P1: First position; P2: Second position; P3: Third position; S1: Longitudinal reference plane; S2: Horizontal reference plane; W: External water source; w: Width; θ1: First included angle; θ2: Second included angle; θ3: Third included angle. Detailed Implementation

[0014] To more clearly illustrate the present invention, preferred embodiments are described in detail below with reference to the accompanying drawings. Referring to Figures 1 to 4, a sun-tracking steam power generation system 1 according to a first preferred embodiment of the present invention is shown, comprising a solar energy collection component 10, a power unit 20, and a generator 30. The solar energy collection component 10 includes a frame 11, a Fresnel lens 12, a connector 13, a linkage assembly 14, a first actuator 15, a second actuator 16, and a steam pipe 17. In this embodiment, the steam pipe 17 is a spiral copper pipe.

[0015] The power unit 20 is connected to an output end 17a of the steam pipe 17, and the generator 30 is connected to the power unit 20. Thus, the Fresnel lens 12 focuses sunlight onto the steam pipe 17 to heat the water in the steam pipe 17, thereby generating steam in the steam pipe 17. The steam is output from the output end 17a of the steam pipe 17 to drive the power unit 20, which in turn drives the generator 30 to operate. The generator 30 converts the kinetic energy of the power unit 20 into electrical energy for the user.

[0016] In this embodiment, the power unit 20 is a piston-type power unit 20, including a piston 21, a cylinder 22, and a flywheel assembly 23. The output end 17a of the steam pipe 17 is connected to the cylinder 22. The steam output from the steam pipe 17 can drive the piston 21, which is disposed in the cylinder 22, to move axially within the cylinder 22, thereby driving the flywheel assembly 23 to rotate. In turn, the flywheel assembly 23 can drive the generator 30 to operate. In other embodiments, the power unit 20 may also be, for example, a steam turbine engine or other power unit 20 that can be driven by steam.

[0017] As shown in Figure 1, the linkage assembly 14 is pivotally mounted on the connector 13. The Fresnel lens 12 and the steam pipe 17 are mounted on the linkage assembly 14. The first driver 15 is mounted on the frame 11 and connected to the connector 13 to drive the connector 13 to swing around a first swing axis A1. The second driver 16 is mounted on the connector 13 and connected to the linkage assembly 14 to drive the linkage assembly 14 to swing around a second swing axis A2. Thus, the Fresnel lens 12 can swing around the first swing axis A1 with the connector 13 in accordance with the solar illumination trajectory formed by the Earth's rotation. The trajectory of the solar incidence angle formed by the Fresnel lens 12 in accordance with the Earth's revolution around the sun can be adjusted by the linkage assembly 14 around the second swing axis A2 to increase the power generation.

[0018] Furthermore, the first driver 15 and the second driver 16 can be motors, and as shown in FIG1, a longitudinal reference plane S1 is defined. The first swing axis A1 is perpendicular to the longitudinal reference plane S1, and the second swing axis A2 is located on the longitudinal reference plane S1. That is, the first swing axis A1 and the second swing axis A2 are perpendicular to each other. For example, the rotation shaft of the first driver 15 is connected to the connector 13 to drive the connector 13 to rotate on the longitudinal reference plane S1, and together drive the linkage assembly 14, the Fresnel lens 12 and the vapor pipe 17 to swing around the first swing axis A1 with the solar illumination trajectory formed by the Earth's rotation, so that a light-receiving surface 12a of the Fresnel lens 12 remains perpendicular to the sunlight, thereby providing a stable power generation.

[0019] In addition, the second driver 16 can drive the linkage assembly 14 to swing around the second swing axis A2 to a first position P1, a second position P2, and a third position P3 respectively. When the linkage assembly 14 is in the first position P1, the light-receiving surface 12a of the Fresnel lens 12 forms a first angle θ1 with the longitudinal reference surface S1. When the linkage assembly 14 is in the second position P2, the light-receiving surface 12a of the Fresnel lens 12 forms a second angle θ2 with the longitudinal reference surface S1. When the linkage assembly 14 is in the third position P3, the light-receiving surface 12a of the Fresnel lens 12 forms a third angle θ3 with the longitudinal reference surface S1. The first angle θ1 is smaller than the second angle θ2, and the second angle θ2 is smaller than the third angle θ3.

[0020] For example, the first included angle can be 31 degrees, the second included angle can be 55 degrees, and the third included angle can be 78.4 degrees, to correspond to the solar tilt angles at the winter solstice, spring equinox, autumn equinox, and summer solstice, respectively. The second driver 16 can drive the linkage assembly 14 to swing around the second swing axis A2 at the winter solstice, spring equinox, autumn equinox, and summer solstice to the first position P1 (see figure), the second position P2 (see figure), and the third position P3 (see figure), respectively. Alternatively, the movement can be gradual and change over time, moving from the first position P1 to the second position P2, from the second position P2 to the third position P3, from the third position P3 to the second position P2, or from the second position P2 to the first position P1.

[0021] Furthermore, the linkage assembly 14 includes a first linkage 141, a second linkage 142, and a third linkage bracket 143. One end of the first linkage 141 is pivotally connected to the connector 13 and connected to the drive shaft of the second driver 16. The other end of the first linkage 141 is pivotally connected to one end of the second linkage 142 relative to the end pivotally connected to the connector 13. The other end of the second linkage 142 is pivotally connected to the third linkage bracket 143, and the bottom of the third linkage bracket 143 is pivotally connected to the connector 13. The pivot point between the third linkage bracket 143 and the connector 13 is lower than the pivot point between the third linkage bracket 143 and the second linkage 142. The Fresnel lens 12 and the vapor tube 17 are disposed on the third linkage bracket 143. Thus, when the drive shaft of the second driver 16 rotates, it can drive the first linkage 141 to rotate, thereby actuating the second linkage 142 and the third linkage bracket 143.

[0022] Referring to Figure 1, the sun-chasing steam power generation system 1 includes a water collection tank 40 connected to the power unit 20. The water collection tank 40 is connected to a drain hole 22a at the bottom of the cylinder 22 of the power unit 20, thereby recovering water converted from steam. The sun-chasing steam power generation system 1 further includes a water storage tank 50, a check valve 52, a vent valve 42, a return water motor 44, and a water supply pipeline 60. The water storage tank 50 is connected to an external water source W and the steam pipe 17. The water supply pipeline 60 is connected to the water storage tank 50 and the water collection tank 40, and the water supply pipeline 60 transports water from the water collection tank 40 to the water storage tank 50. The check valve 52 is installed on the water supply pipeline between the water storage tank 50 and the steam pipe 17 and is positioned... Located near the steam pipe 17, the vent valve 42 is positioned at the upper end of the water collection tank 40, and the return water motor 44 is positioned at the outlet of the water collection tank 40. The outlet of the water collection tank 40 is connected to the water supply pipeline 60. Thus, water from the external water source W can flow into the water storage tank 50, and water in the water storage tank 50 can be output to the steam pipe 17. Furthermore, the check valve 52 prevents steam in the steam pipe 17 from flowing back into the water storage tank 50. Water entering the water collection tank 40 can be transported to the water storage tank 50 via the return water motor 44 and the water supply pipeline 60 for recycling and reuse. In addition, when the air pressure in the water collection tank 40 is too high, the vent valve 42 can release the pressure.

[0023] Referring to Figures 1 and 4, in this embodiment, the solar energy collection components 10 in the sun-chasing steam power generation system 1 are multiple, and the multiple solar energy collection components 10 are arranged as shown in Figure 4. The multiple solar energy collection components 10 are arranged at a predetermined distance D along the first swing axis A1. The solar energy collection components 10 are disposed on a horizontal reference plane S2 and have a height h. When the connecting rod assembly 14 is located at the first position P1, the Fresnel lens 12 has a minimum distance d between it and the horizontal reference plane S2. The solar energy collection components 10 have a width w along the first swing axis A1. The predetermined distance D is greater than or equal to w(hd) / d. Therefore, the Fresnel lens 12 of each solar energy collection component 10 will not be affected by the shading of another adjacent solar energy collection component 10, thus affecting the light collection. In other embodiments, the number of solar energy collection components 10 in the sun-chasing steam power generation system 1 can also be one, and is not limited to multiple in this embodiment.

[0024] Please refer to Figure 5, which shows a second preferred embodiment of the sun-tracking steam power generation system 2 of the present invention. The sun-tracking steam power generation system 2 has a substantially the same structure as the sun-tracking steam power generation system 1 of the first preferred embodiment described above. The difference is that the sun-tracking steam power generation system 1 of the first preferred embodiment includes a plurality of solar energy collection components 10, a plurality of power devices 20, and a plurality of generators 30. The number of solar energy collection components 10, the plurality of power devices 20, and the plurality of generators 30 are arranged in a mutually coordinated manner. That is, one solar energy collection component 10 is correspondingly provided with one power device 20 and one generator 30, and the plurality of solar energy collection components 10, the plurality of power devices 20, and the plurality of generators 30 can be arranged in the manner shown in the figure.

[0025] In the second preferred embodiment of the sun-tracking steam power generation system 2, the sun-tracking steam power generation system 2 includes multiple solar energy collection components 10, a power unit 20', and a generator 30'. The sun-tracking steam power generation system 1 further includes a steam pressure cylinder 70, which is connected to the output end 17a of the steam pipe 17 of each of the solar energy collection components 10 and the power unit. The output end 17a of each steam pipe 17 is connected to the power unit 20 through the steam pressure cylinder 70. That is, the steam generated by each of the solar energy collection components 10 can be input into the steam pressure cylinder 70 to drive the power unit 20, which in turn drives the generator 30 to generate electricity. The steam pressure cylinder 70 has an exhaust valve 72, which releases excess steam by opening the exhaust valve 72.

[0026] In addition, the sun-chasing steam power generation system 2 can be a system containing multiple power generation combinations G, as shown in Figure 6. Each combination G includes three solar energy collection components 10, a power unit 20' and a generator 30', and each combination G can be arranged in an array as shown in Figure 6.

[0027] In summary, the advantages of this invention are that, compared to existing solar panel power generation systems, the sun-tracking steam power generation systems 1 and 2 of this invention can significantly reduce manufacturing and installation costs. Furthermore, the design of the connector 13 swinging around the first swing axis A1 allows the Fresnel lens 12 to swing with the connector 13 around the first swing axis A1 in accordance with the solar trajectory formed by the Earth's rotation, thereby increasing power generation. Moreover, the design of the linkage assembly 14 swinging around the second swing axis A2 allows the Fresnel lens 12 to adjust its tilt angle with the trajectory of the changing solar incidence angle formed by the Earth's revolution around the sun, thereby further increasing power generation.

[0028] The above description is only a preferred embodiment of the present invention. Any equivalent changes made by applying the present invention specification and the claims should be included within the patent scope of the present invention.

Claims

1. A sun-tracking steam power generation system, comprising: A solar energy collection assembly includes a frame, a Fresnel lens, a connector, a linkage assembly, a first actuator, a second actuator, and a vapor pipe. The linkage assembly is pivotally mounted on the connector, the Fresnel lens and the vapor pipe are disposed on the linkage assembly, the first actuator is disposed on the frame and connected to the connector to drive the connector to swing about a first swing axis, and the second actuator is disposed on the connector and connected to the linkage assembly to drive the linkage assembly to swing about a second swing axis. A power unit is connected to one output end of the steam pipe; and A generator is connected to the power unit; in, The Fresnel lens focuses light onto the steam pipe to heat the water in the steam pipe, thereby generating steam which is output from the output end to drive the power unit, which in turn drives the generator to generate electricity.

2. The sun-tracking steam power generation system as described in claim 1, wherein, Define a longitudinal reference plane, wherein the first swing axis is perpendicular to the longitudinal reference plane, and the second swing axis is located on the longitudinal reference plane.

3. The sun-tracking steam power generation system as described in claim 2, wherein, The second driver can drive the linkage assembly to swing around the second swing axis to a first position, a second position, and a third position respectively. When the linkage assembly is in the first position, a light-receiving surface of the Fresnel lens forms a first angle with the longitudinal reference plane. When the linkage assembly is in the second position, the light-receiving surface of the Fresnel lens forms a second angle with the longitudinal reference plane. When the linkage assembly is in the third position, the light-receiving surface of the Fresnel lens forms a third angle with the longitudinal reference plane. The first angle is smaller than the second angle, and the second angle is smaller than the third angle.

4. The sun-tracking steam power generation system as described in claim 3, wherein, The number of solar energy collection components is multiple, and the multiple solar energy collection components are arranged at a predetermined distance along the first swing axis. The solar energy collection components are disposed on a horizontal reference plane and have a height h. When the linkage assembly is in the first position, the Fresnel lens has a minimum distance d between it and the horizontal reference plane. The solar energy collection components have a width w along the first swing axis, and the predetermined distance is greater than or equal to w(hd) / d.

5. The sun-tracking steam power generation system as described in claim 1, wherein, It includes a water collection tank connected to the power unit.

6. The sun-tracking steam power generation system as described in claim 5, wherein, It includes a water storage tank and a water supply pipeline. The water storage tank is connected to an external water source and the steam pipe. The water supply pipeline is connected to the water storage tank and the water collection tank. The water supply pipeline transports water from the water collection tank to the water storage tank.

7. The sun-tracking steam power generation system as described in claim 1, wherein, It includes a steam pressure cylinder, wherein there are multiple solar energy collection components, the steam pressure cylinder is connected to the output end of each steam pipe and the power device, and the output end of each steam pipe is connected to the power device through the steam pressure cylinder.

8. The sun-tracking steam power generation system as described in claim 7, wherein, The steam cylinder has an exhaust valve.

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