A stirling power plant

Abstract

The application discloses a Stirling power generation device and relates to the technical field of Stirling application equipment.The Stirling power generation device comprises a Stirling mechanism with a heat-absorbing end arranged below the ground and a heat-dissipating end arranged above the ground, and further comprises a condenser, one end of the condenser is arranged to extend into the ground below and is connected with the heat-absorbing end of the Stirling mechanism, and the other end is movably provided with a condensing plate.The Stirling power generation device has the beneficial effects that the main condensing plates arranged in an array and capable of rotating up and down and the auxiliary condensing plates connected through connecting rods are arranged, sunlight can be gathered and conducted to the heat-absorbing end along the light guide pipe for heating during work, the auxiliary condensing plates can cover the light guide pipe orifice during non-work to avoid sand, rain and snow from falling into the light guide pipe orifice and affecting the subsequent operation of the device, gaps are arranged between the main condensing plates during work to avoid the accumulation of sand, the heat-absorbing end is arranged below the ground and is not easily affected by wind and other factors, the heat-dissipating end is arranged above the ground, which is conducive to heat dissipation and can ensure a large temperature difference and improve the efficiency of the Stirling mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of Stirling application device, and particularly relates to a Stirling power generation device. BACKGROUND

[0002] In northwest and other regions, due to complex terrain, the cost of erecting cables is large, but due to sufficient sunlight in northwest and other regions, solar power generation is a good choice, and power supply of some infrastructure or patrol posts in northwest regions can be provided by solar power generation, however, desertification in northwest regions is relatively serious, and the wind and sand weather in daily life can make sand soil accumulate and cover the solar panels, thereby affecting the efficiency of solar power generation, and cleaning of the solar panels is more complex and has a high cost.

[0003] The Stirling engine is an external combustion engine, and can be driven by providing sufficient heat at the heat absorption end to form a temperature difference, if the Stirling engine can drive a generator to generate power, the above problems can be easily solved, and the key point of the technical scheme is how to efficiently and conveniently obtain heat provided to the heat absorption end, the best method is still to apply solar energy, and high temperature can be obtained by focusing sunlight, which is sufficient to drive the Stirling generator, in order to focus sunlight, the influence of sand soil in the wind and sand weather also needs to be avoided, and a condenser needs to be designed to achieve the purpose.

[0004] Similarly, in order to obtain a larger temperature difference, the abundant wind energy resources in northwest regions are utilized to achieve heat dissipation of the heat dissipation end, but the temperature of the heat absorption end also needs to be avoided, therefore, the Stirling engine also needs to be ingeniously arranged to obtain a larger temperature difference and achieve higher conversion efficiency.

[0005] Based on this, the applicant proposes a Stirling power generation device to solve the above technical problems. SUMMARY

[0006] The present application provides a Stirling power generation device to solve the above technical problems.

[0007] The present application is solved by the following technical scheme:

[0008] A Stirling power generation device, comprising a Stirling mechanism with a heat absorption end arranged below the ground and a heat dissipation end arranged above the ground, and further comprising a condenser, one end of the condenser is arranged below the ground and connected with the heat absorption end of the Stirling mechanism, and the other end is movably provided with a condensing plate.

[0009] Preferably, the light collector comprises a light guide pipe inserted into the ground, the light guide pipe is provided with the light collector plate on the upper side, the light collector plate comprises a main light collector plate, the main light collector plate is provided with a secondary light collector plate on the upper side, the main light collector plate is rotated to the upper end to collect light, and the secondary light collector plate conducts the light beam along the light guide pipe to the heat absorption end of the Stirling mechanism, and the main light collector plate is rotated to the lower end, and the secondary light collector plate covers the pipe opening of the light guide pipe.

[0010] Preferably, the main light collector plate is arranged in a circular array along the side of the light guide pipe, and the secondary light collector plate is rotationally connected with the main light collector plate through a connecting rod.

[0011] Preferably, gaps are arranged between adjacent main light collector plates after the main light collector plate is rotated to the upper end.

[0012] Preferably, the light guide pipe is connected with the heat absorption end of the Stirling mechanism through a connector.

[0013] Preferably, a reflector is arranged in the light guide pipe.

[0014] Preferably, the Stirling mechanism comprises a cylinder, a main piston and a secondary piston slidingly arranged in the cylinder, a heat absorption cavity and a heat dissipation cavity in communication with each other through a gap between the secondary piston and the heat dissipation cavity are arranged in the cylinder, and the main piston is arranged in the heat dissipation cavity.

[0015] Preferably, a plurality of heat dissipators are arranged outside the heat dissipation cavity.

[0016] Preferably, the heat absorption end comprises an end face or a side face outside the heat absorption cavity.

[0017] Preferably, the connector is sleeve-shaped, the light guide pipe is "L"-shaped, a through hole is formed in the side face of the connector and in communication with the light guide pipe, and the light beam passes through the through hole to irradiate on the side face outside the heat absorption cavity after passing through the light guide pipe.

[0018] Preferably, the connector is sleeve-shaped, the light guide pipe is "L"-shaped, a through hole is formed in the side face of the connector and in communication with the light guide pipe, and the light beam passes through the through hole to irradiate on the side face outside the heat absorption cavity after passing through the light guide pipe.

[0019] Preferably, the main piston and the secondary piston are both movably connected with a driving device, the driving device comprises a crankshaft, the main piston is rotationally connected with the crankshaft through a connecting rod A, and the secondary piston is rotationally connected with the crankshaft through a connecting rod B.

[0020] Preferably, a protective cover is arranged outside the driving device, the protective cover is connected to one end of the cylinder, an axle hole is formed in the protective cover, and the end portion of the crankshaft extends outside the protective cover through the axle hole.

[0021] Preferably, the protective cover is arranged inside a housing, the heat sink is arranged outside the housing, and a supporting column is arranged at the lower side of the housing.

[0022] Preferably, the top of the housing is a dome.

[0023] Preferably, the crankshaft end is connected with a power generation and storage device through a belt wheel mechanism, and the power generation and storage device is arranged inside the housing.

[0024] Preferably, a power output device is arranged on the housing and connected with the power generation and storage device, and a controller is arranged on the housing for controlling the power output device.

[0025] Preferably, the belt wheel mechanism comprises a main belt wheel arranged on the crankshaft and a sub-belt wheel arranged on the power generation and storage device, and the main belt wheel and the sub-belt wheel are connected through a transmission belt.

[0026] Preferably, the power generation and storage device comprises a generator A and a storage device A connected therewith, a generator B and a storage device B connected therewith, a generator C and a storage device C connected therewith, and a generator D and a storage device D connected therewith.

[0027] Preferably, the main belt wheel comprises a main belt wheel A and a main belt wheel B arranged at the two ends of the crankshaft respectively, and two belt wheel grooves are arranged on the main belt wheel A and the main belt wheel B respectively for mounting the transmission belt.

[0028] Preferably, the sub-belt wheel comprises a sub-belt wheel A arranged on the generator A, a sub-belt wheel B arranged on the generator B, a sub-belt wheel C arranged on the generator C, and a sub-belt wheel D arranged on the generator D.

[0029] Preferably, the transmission belt comprises a transmission belt A connecting the sub-belt wheel A with the main belt wheel A, a transmission belt B connecting the sub-belt wheel B with the main belt wheel A, a transmission belt C connecting the sub-belt wheel C with the main belt wheel B, and a transmission belt D connecting the sub-belt wheel D with the main belt wheel B.

[0030] Preferably, a mounting platform is arranged inside the housing, the generator A, the storage device A, the generator D, and the storage device D are arranged on the upper side of the mounting platform, and the generator B, the storage device B, the generator C, and the storage device C are arranged on the lower side of the mounting platform.

[0031] The application has the beneficial effects that the main light collecting plates arranged in an array and capable of rotating up and down and the auxiliary light collecting plates connected by connecting rods can gather sunlight and conduct the sunlight to the heat absorbing end along the light guide pipe for heating when working, and the auxiliary light collecting plates can cover the light guide pipe openings when not working, so as to avoid sand, rain and snow from falling into and affecting the subsequent operation of the device; gaps are arranged between the main light collecting plates when working, so as to avoid the accumulation of sand; the heat absorbing end is arranged at the ground, and is not easily affected by wind and other factors; the heat radiating end is arranged on the ground, which is beneficial to cooling, and can ensure a large temperature difference and improve the efficiency of the Stirling mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be described below. Obviously, the technical solutions described in the description of the drawings are only some embodiments of the present application, and for those skilled in the art, other embodiments and drawings can be obtained without creative labor on the basis of the embodiments shown in the drawings.

[0033] Figure 1 is a schematic diagram of the three-dimensional structure of the present application.

[0034] Figure 2 is Figure 1 a schematic diagram of the partial enlargement of A of the present application.

[0035] Figure 3 is a schematic diagram of the three-dimensional structure of the present application.

[0036] Figure 4 is Figure 3 a schematic diagram of the partial enlargement of B of the present application.

[0037] Figure 5 is an exploded view of the three-dimensional structure of the present application.

[0038] Figure 6 is a schematic diagram of the three-dimensional structure of the present application.

[0039] Figure 7 is a schematic diagram of the three-dimensional structure of the present application.

[0040] Figure 8 is a schematic diagram of the three-dimensional structure of the light collector of the present application.

[0041] Figure 9 is a sectional view of the three-dimensional structure of the light collector of the present application.

[0042] Figure 10 is a schematic diagram of the internal structure of the present application.

[0043] Figure 11 is a schematic diagram of the internal structure of the present application.

[0044] Figure 12 is a schematic diagram of the internal structure of the present application.

[0045] Figure 13 is a schematic diagram of the internal structure of the present application.

[0046] Figure 14 is a schematic diagram of the internal structure of the present application.

[0047] Figure 15 is a schematic diagram of the internal structure of the present application.

[0048] Figure 16 is a schematic diagram of the shell structure of the present application.

[0049] Figure 17 is a schematic diagram of the Stirling mechanism structure of the present application.

[0050] Figure 18 is a sectional view of the Stirling mechanism structure of the present application.

[0051] Figure 19 is a schematic diagram of the Stirling mechanism structure of the present application.

[0052] In the figure: 1, shell, 2, support column, 3, power output device, 4, controller, 5, cylinder, 6, radiator, 7, auxiliary piston, 8, main piston, 9, connecting rod A, 10, connecting rod B, 11, crankshaft, 12, protective cover, 13, main pulley A, 14, transmission belt A, 15, transmission belt B, 16, generator A, 17, power storage device A, 18, auxiliary pulley A, 19, power storage device B, 20, generator B, 21, auxiliary pulley B, 22, main pulley B, 23, transmission belt C, 24, transmission belt D, 25, power storage device D, 26, generator D, 27, power storage device C, 28, generator C, 29, connector, 30, light guide tube, 31, main light condensing plate, 32, auxiliary light condensing plate, 33, connecting rod, 34, reflector, 35, heat absorption cavity, 36, mounting platform, 37, auxiliary pulley D, 38, auxiliary pulley C, 39, heat dissipation cavity. DETAILED DESCRIPTION

[0053] The technical solutions of the embodiments of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. Embodiment 1

[0054] As Figures 1 to 19The application discloses a Stirling power generation device, which comprises a Stirling mechanism with a heat absorbing end arranged below the ground and a heat radiating end arranged above the ground, a cylinder 5, a main piston 8 and a secondary piston 7 slidingly arranged in the cylinder 5, a heat absorbing cavity 35 and a heat radiating cavity 39 arranged in the cylinder 5 and communicated with the secondary piston 7 through a gap, a plurality of heat radiators 6 arranged outside the heat radiating cavity 39, the main piston 8 arranged in the heat radiating cavity 39, the main piston 8 and the secondary piston 7 movably connected with a driving device, the driving device comprising a crankshaft 11, the main piston 8 rotatably connected with the crankshaft 11 through a connecting rod A 9, the secondary piston 7 rotatably connected with the crankshaft 11 through a connecting rod B 10, a protective cover 12 arranged outside the driving device, the protective cover 12 connected with one end of the cylinder 5, an axle hole arranged on the protective cover 12, the crankshaft 11 extending out of the protective cover 12 through the axle hole, the crankshaft 11 connected with a power generation and storage device through a belt wheel mechanism, the belt wheel mechanism comprising a main belt wheel arranged on the crankshaft 11 and a secondary belt wheel arranged on the power generation and storage device, the main belt wheel connected with the secondary belt wheel through a transmission belt, the power generation and storage device comprising a power generator A 16 and a power storage device A 17 connected with the power generator A 16, a power generator B 20 and a power storage device B 19 connected with the power generator B 20, a power generator C 28 and a power storage device C 27 connected with the power generator C 28, a power generator D 26 and a power storage device D 25 connected with the power generator D 26, the main belt wheel comprising a main belt wheel A 13 and a main belt wheel B 22 arranged at two ends of the crankshaft 11 respectively, two belt wheel grooves arranged on the main belt wheel A 13 and the main belt wheel B for mounting the transmission belt, the secondary belt wheel comprising a secondary belt wheel A 18 arranged on the power generator A 16, a secondary belt wheel B 21 arranged on the power generator B 20, a secondary belt wheel C 38 arranged on the power generator C 28, a secondary belt wheel D 37 arranged on the power generator D 26, the transmission belt comprising a transmission belt A 14 connecting the secondary belt wheel A 18 with the main belt wheel A 13, a transmission belt B 15 connecting the secondary belt wheel B 21 with the main belt wheel A 13, a transmission belt C 23 connecting the secondary belt wheel C 38 with the main belt wheel B 22, a transmission belt D 24 connecting the secondary belt wheel D 37 with the main belt wheel B 22, a shell 1, the protective cover 12 arranged in the shell 1, the power generation and storage device mounted in the shell 1, the heat radiators 6 arranged outside the shell 1, a supporting column 2 arranged at the lower side of the shell 1, a power output device 3 arranged on the shell 1 and connected with the power generation and storage device, a controller 4 arranged on the shell 1 and used for controlling the power output device 3, an installation platform 36 arranged in the shell 1, the power generator A 16, the power storage device A 17, the power generator D 26 and the power storage device D 25 arranged on the upper side of the installation platform 36,The generator B20, the electricity accumulator B19, the generator C28 and the electricity accumulator C27 are arranged on the lower side of the mounting platform 36, and further comprise a light collector, the light collector comprises a light guide pipe 30 inserted into the ground, a reflector 34 is arranged in the light guide pipe 30, the light guide pipe 30 is connected with the heat absorbing end of the Stirling mechanism through a connector 29, the heat absorbing end comprises a side surface outside the heat absorbing cavity 35, the connector 29 is sleeve-shaped, the light guide pipe 30 is in the shape of “L”, a through hole is formed in the side surface of the connector 29 and communicates with the light guide pipe 30, and the light beam is irradiated on the side surface outside the heat absorbing cavity 35 through the through hole after being reflected by the reflector 34; a light collecting plate is rotatably arranged on the upper side of the light guide pipe 30, the light collecting plate comprises a main light collecting plate 31, a sub light collecting plate 32 is rotatably arranged on the main light collecting plate 31, the main light collecting plate 31 is arranged in a circumferential array along the side surface of the light guide pipe 30, and gaps are arranged between adjacent main light collecting plates 31 after the main light collecting plate 31 is rotated to the upper end; the sub light collecting plate 32 is rotatably connected with the main light collecting plate 31 through a connecting rod 33, the light beam is conducted to the heat absorbing end of the Stirling mechanism through the sub light collecting plate 32 after the main light collecting plate 31 is rotated to the upper end and light is collected, and the sub light collecting plate 32 covers the pipe opening of the light guide pipe 30 after the main light collecting plate 31 is rotated to the lower end.

[0055] When the device operates, the main light collecting plate 31 is rotated to the upper side to form an overall reflecting surface, at the same time, the sub light collecting plate 32 is lifted under the action of the connecting rod 33 to open the pipe opening of the light guide pipe 30, and the focal point positions of the main light collecting plate 31 and the sub light collecting plate 32 coincide at this time, so that it can be ensured that the parallel light beam of the sunlight is reflected to the sub light collecting plate 32 after being collected by the main light collecting plate 31 and is reflected into the light guide pipe 30 again, and the collected light beam is parallel light beam, so that the collected light beam can be completely used for heating the heat absorbing end; gaps are arranged between the main light collecting plates 31, and when the device is used in a region with wind and sand, the sand and soil are not easy to accumulate on the main light collecting plate 31, so that the efficiency is improved; when the heat absorbing end is heated by the collected light beam, the Stirling mechanism operates to drive the pulley to rotate, so that the generator is driven to generate electricity, and the electricity is stored in the electricity accumulator; the electricity can be taken out through the power output device 3, or the cable can be directly drawn out from the electricity accumulator; during the lightless time such as night or rainy and snowy days, the main light collecting plate 31 is rotated to the lower side to drive the sub light collecting plate 32 to descend to cover the pipe opening of the light guide pipe 30, so that the sand and soil and the rain and snow are prevented from falling into the light guide pipe 30, and the main light collecting plate 30 is in a drooping state, so that the sand and soil cannot accumulate on the main light collecting plate 30 and manual cleaning is not needed.

[0056] On the basis of the above embodiment, the heat absorbing end comprises an end surface outside the heat absorbing cavity 35, the connector 29 is in the shape of a sleeve ring, the light guide pipe 30 is in the shape of “J”, and the light beam is irradiated on the end surface outside the heat absorbing cavity 35 through the connector 29 after being reflected by the reflector 34.

[0057] Preferably, the shell 1 can be provided with several heat dissipation holes, and a filter screen can be arranged inside the heat dissipation holes to avoid sand entering.

[0058] It is apparent to a person skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, but can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being indicated by the appended claims rather than by the foregoing description, and it is intended that all changes and modifications which come within the meaning and range of equivalency of the claims are resolutely intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0059] Furthermore, it should be understood that although the present specification describes exemplary embodiments, the present specification does not limit the application to these exemplary embodiments only. The present specification describes the present application in one general context, but the present specification can also be broken down into sub-contexts, and the technical solutions in the respective embodiments can be combined as appropriate to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A Stirling power generation device, characterized in that: The device includes a Stirling mechanism with its heat-absorbing end located below the ground and its heat-dissipating end located above the ground. It also includes a concentrator, one end of which extends below the ground and connects to the heat-absorbing end of the Stirling mechanism, and the other end of which is movably fitted with a focusing plate. The concentrator includes a light guide tube (30) with one end inserted below the ground. The focusing plate is rotatably mounted on the upper side of the light guide tube (30). The focusing plate includes a main focusing plate (31) and a secondary focusing plate (32) rotatably mounted on the main focusing plate (31). When the main focusing plate (31) rotates to its upper end to focus the light, the light beam is transmitted along the light guide tube (30) to the heat-absorbing end of the Stirling mechanism via the secondary focusing plate (32). When the main focusing plate (31) rotates to its lower end, the secondary focusing plate (32) covers the light guide tube. The main focusing plate (31) is arranged in a circular array along the side of the light guide tube (30) at the opening of the tube (30). The secondary focusing plate (32) is rotatably connected to the main focusing plate (31) through the connecting rod (33). After the main focusing plate (31) is rotated to the upper end, a gap is provided between adjacent main focusing plates (31). The light guide tube (30) is connected to the heat-absorbing end of the Stirling mechanism through the connector (29). A reflector (34) is provided inside the light guide tube (30). The connector (29) is sleeve-shaped. The light guide tube (30) is "L"-shaped. A through hole is opened on the side of the connector (29) and communicates with the light guide tube (30). After the light beam passes through the light guide tube (30), it passes through the through hole and irradiates the heat-absorbing end.

2. The Stirling power generation device according to claim 1, characterized in that: The Stirling mechanism includes a cylinder (5) and a main piston (8) and a secondary piston (7) that slide within the cylinder (5). The cylinder (5) is provided with a heat absorption chamber (35) and a heat dissipation chamber (39) that communicate with the secondary piston (7) through a gap. The main piston (8) is located within the heat dissipation chamber (39).

3. A Stirling power generation device according to claim 2, characterized in that: Several radiators (6) are provided on the outside of the heat dissipation cavity (39).

4. A Stirling power generation device according to claim 2, characterized in that: Both the main piston (8) and the auxiliary piston (7) are movably connected to the drive device, which includes a crankshaft (11). The main piston (8) is rotatably connected to the crankshaft (11) via connecting rod A (9), and the auxiliary piston (7) is rotatably connected to the crankshaft (11) via connecting rod B (10).

5. A Stirling power generation device according to claim 4, characterized in that: The crankshaft (11) end is connected to a power generation and energy storage device via a pulley mechanism.

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