Solar photo-thermal absorption tower

Abstract

The utility model relates to a solar photo-thermal absorption tower, which belongs to the technical field of new energy devices and comprises a tower body, a photo-thermal conduction mechanism, a photoelectric conversion mechanism and a thermoelectric conversion mechanism. The light heat conduction mechanism is fixed to the top end of the tower body and guides sunlight with heat energy and light energy into the generation interlayer. According to the utility model, the micro curved surfaces distributed in the array are utilized to collect solar energy and solar heat energy, and the top ends of light beams are correspondingly arranged at the focal points of the micro curved plates and the bottom ends of the light beams extend into the reflecting interlayer, so that the sunlight can be guided into the reflecting interlayer; and then the photoelectric conversion mechanism and the thermoelectric conversion mechanism are used for collecting solar energy and solar thermal energy respectively, so that the solar energy absorption efficiency is improved, the temperature in the tower is prevented from rising, and the high photoelectric conversion efficiency is maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy devices, in particular to a solar thermal absorption tower. Background Art

[0002] With the rapid development of society, energy consumption has increased rapidly. Production, life and building function maintenance, as the three major areas of energy consumption, are the main responsibilities for carbon emissions. The existing centralized heating and power supply for production, life and construction are mostly achieved by burning coal. During the combustion of coal in boilers, a large amount of toxic and harmful pollutants such as carbon dioxide, sulfide, nitrogen oxides, etc. are produced, which is poor in energy conservation and environmental protection.

[0003] In order to solve the above technical problems, solar energy is being promoted and applied on a large scale. As a clean energy, solar energy has the advantages of wide distribution, low cost and mature technology. However, solar power generation is intermittent and volatile, and cannot meet the energy consumption needs of production, life and construction at night and in extreme weather. At the same time, the power generation efficiency of photovoltaic cells is affected by the temperature of the cell. If the temperature rises by 1°C, the power generation efficiency of photovoltaic cells will decrease by 0.3%-0.5%. In addition, solar power generation mainly uses the laying of photovoltaic panels to generate electricity. Since the laying area of ​​photovoltaic panels is large, it cannot be applied to areas with scarce land resources.

[0004] Therefore, how to design a solar thermal absorption tower with a small footprint and high solar energy conversion efficiency is an urgent problem that technicians in this field need to solve. Utility Model Content

[0005] The utility model provides a solar thermal absorption tower, which solves the technical problems that the existing solar thermal absorption device occupies a large area, has low photovoltaic power generation efficiency and cannot utilize thermal energy.

[0006] The utility model solves the above technical problems with the following technical solutions: a solar thermal absorption tower, comprising: a tower body, a photothermal conduction mechanism, a photoelectric conversion mechanism and a thermoelectric conversion mechanism.

[0007] The interior of the tower body is hollow and its top surface is a closed surface, and a plurality of plug holes are arranged at intervals on the closed surface. A central tube is fixed inside the tower body along its height direction, and a capsule-shaped reflective cover is wrapped and fixed on the outer peripheral side of the central tube, and a reflective interlayer is defined between the central tube and the reflective cover, and a plurality of light guide holes are arranged on the reflective cover; the light and heat conduction mechanism comprises a motor, a bracket, a plurality of micro-curved panels and a plurality of light beams for light and heat conduction, the motor is fixed on the closed surface and its output shaft rotates along a direction perpendicular to the height of the tower body; the bracket is fixed on the output shaft of the motor; a plurality of micro-curved panels are fixed on the top surface of the bracket in an array; the top ends of the plurality of light beams are respectively fixed on the bracket corresponding to the focal points of the plurality of micro-curved panels, and the bottom ends thereof respectively pass through the plurality of plug holes and the plurality of light guide holes in sequence and extend into the reflective interlayer; the photovoltaic end of the photoelectric conversion mechanism and the thermal end of the thermoelectric conversion mechanism are both located in the reflective interlayer and simultaneously absorb the photovoltaic and light heat entering the reflective interlayer.

[0008] The beneficial effects of the utility model are as follows: first, the solar light energy and solar thermal energy are collected by utilizing the micro-curved surfaces distributed in an array; since the top of the light beam is correspondingly placed at the focus of the micro-curved panel and its bottom end extends into the reflective interlayer, the sunlight can be introduced into the reflective interlayer; then, the solar light energy and solar thermal energy are collected respectively by utilizing the photoelectric conversion mechanism and the thermoelectric conversion mechanism, thereby improving the solar energy absorption efficiency while avoiding the temperature increase in the tower and maintaining the high efficiency of the photoelectric conversion.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the photoelectric conversion mechanism includes a battery and a plurality of first photovoltaic panels, the plurality of first photovoltaic panels are all located in the reflective interlayer and attached to the outer wall of the central tube and the inner wall of the reflective cover; the battery is located outside the tower body and is electrically connected to the plurality of first photovoltaic panels.

[0011] The further beneficial effect of adopting the above method is: using multiple first photovoltaic panels to splice and fix them on the outer wall of the central tube can improve the convenience of splicing the first photovoltaic panels and improve the photoelectric conversion efficiency of the first photovoltaic panels.

[0012] Furthermore, the thermoelectric conversion mechanism includes a cold oil storage tank, a hot oil storage tank, a first circulating pump, a water tank and a steam turbine generator. The outlets and inlets of the cold oil storage tank, the center tube and the hot oil storage tank are connected in series in sequence. The first circulating pump is installed on the oil pipe between the oil outlet of the center tube and the oil inlet of the hot oil storage tank. A hot oil conduit is spirally fixed on the outer peripheral side of the water tank along its height direction. The oil inlet of the hot oil conduit is connected to the hot oil storage tank and the oil outlet is connected to the cold oil storage tank. The steam inlet of the steam turbine generator is connected to the steam outlet of the water tank.

[0013] A further beneficial effect of the above method is that the water in the water storage tank is heated by hot oil to generate hot steam to realize power generation by the steam turbine generator.

[0014] Furthermore, the thermoelectric conversion mechanism also includes a heat-absorbing capillary and a second circulating pump, and the outer peripheral side of the tower body is provided with spirally arranged fixed grooves along its height direction; the heat-absorbing capillary is embedded in the fixed groove along the spiral direction of the fixed groove, and its oil inlet is connected to the cold oil storage tank, and its oil outlet is connected to the hot oil storage tank; the second circulating pump is installed on the oil pipe between the heat-absorbing capillary and the hot oil storage tank.

[0015] A further beneficial effect of the above method is that the heat absorbing tubes are embedded in the spirally arranged fixing grooves on the outer peripheral side of the tower body, and the heat absorbing tubes can be used to absorb the solar heat energy contacted by the outside of the tower body, thereby increasing the amount of solar heat energy absorbed.

[0016] Furthermore, the photoelectric conversion mechanism also includes a plurality of second photovoltaic panels, which are fixed on the outer peripheral side of the tower body and in contact with the heat absorbing tubes.

[0017] A further beneficial effect of adopting the above method is: by fixing multiple second photovoltaic panels on the outer peripheral side of the tower body, since the multiple second photovoltaic panels are respectively in contact with the heat-absorbing tubes, the heat of the second photovoltaic panels can be reduced while the second photovoltaic panels convert solar energy, thereby avoiding a decrease in the photoelectric conversion efficiency of the second photovoltaic panels.

[0018] Furthermore, the plurality of the first photovoltaic panels and the plurality of the second photovoltaic panels are all in the shape of a triangle, a pentagon or a hexagon.

[0019] A further beneficial effect of the above is that the plurality of first photovoltaic panels and the plurality of second photovoltaic panels are designed as triangles, quadrilaterals or hexagons, which can facilitate the laying of the first photovoltaic panels and the second photovoltaic panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a solar thermal absorption tower of the utility model;

[0021] Figure 2This is a schematic diagram of the internal structure of a solar thermal absorption tower of the utility model;

[0022] Figure 3 The utility model is a semi-planed three-dimensional structural schematic diagram of a solar thermal absorption tower.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Tower body, 2. Photothermal conduction mechanism, 21. Motor, 22. Bracket, 23. Micro-curved panel, 24. Light beam, 3. Photoelectric conversion mechanism, 31. First photovoltaic panel, 4. Thermoelectric conversion mechanism, 41. Heat-absorbing capillary, 5. Central tube, 6. Reflection cover. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0026] like Figure 1 and Figure 2 As shown, a solar thermal absorption tower comprises: a tower body 1, a photothermal conduction mechanism 2, a photoelectric conversion mechanism 3 and a thermoelectric conversion mechanism 4,

[0027] The interior of the tower body 1 is hollow and its top surface is a closed surface, and a plurality of plug holes are arranged at intervals on the closed surface. A central tube 5 is fixed inside the tower body 1 along its height direction, and a capsule-shaped reflective cover 6 is wrapped and fixed on the outer peripheral side of the central tube 5, and a reflective interlayer is defined between the central tube 5 and the reflective cover 6, and a plurality of light guide holes are arranged on the reflective cover 6; the light and heat conduction mechanism 2 includes a motor 21, a bracket 22, a plurality of micro-curved panels 23 and a plurality of light beams 24 for light and heat conduction, the motor 21 is fixed on the closed surface and its output shaft rotates along the vertical height direction of the tower body 1; the bracket 22 is fixed on the output shaft of the motor 21; the plurality of micro-curved panels 23 are fixed on the top surface of the bracket 22 in an array; the top ends of the plurality of light beams 24 are respectively fixed on the bracket 22 corresponding to the focal points of the plurality of micro-curved panels 23, and the bottom ends thereof respectively pass through the plurality of plug holes and the plurality of light guide holes in sequence and extend into the reflective interlayer; the photovoltaic end of the photoelectric conversion mechanism 3 and the thermovoltaic end of the thermoelectric conversion mechanism 4 are both located in the reflective interlayer and absorb the photovoltaic and light heat entering the reflective interlayer at the same time.

[0028] In some specific embodiments, the photoelectric conversion mechanism 3 may include a battery and multiple first photovoltaic panels 31, and the multiple first photovoltaic panels 31 are all located in the reflective interlayer and attached to the outer wall of the central tube 5 and the inner wall of the reflective cover 6; the battery is located outside the tower body 1 and is electrically connected to the multiple first photovoltaic panels 31.

[0029] In some specific embodiments, the thermoelectric conversion mechanism 4 may include a cold oil storage tank, a hot oil storage tank, a first circulating pump, a water tank and a steam turbine generator. The outlets and inlets of the cold oil storage tank, the center tube 5 and the hot oil storage tank are connected in series in sequence, and the first circulating pump is installed on the oil pipe between the oil outlet of the center tube 5 and the oil inlet of the hot oil storage tank; a hot oil conduit is spirally fixed on the outer peripheral side of the water tank along its height direction, and the oil inlet of the hot oil conduit is connected to the hot oil storage tank and its oil outlet is connected to the cold oil storage tank; the steam inlet of the steam turbine generator is connected to the steam outlet of the water tank.

[0030] In some specific embodiments, the thermoelectric conversion mechanism 4 may further include a heat absorbing capillary 41 and a second circulation pump. The outer peripheral side of the tower body 1 is provided with a spirally arranged fixed groove along its height direction; the heat absorbing capillary 41 is embedded in the fixed groove along the spiral direction of the fixed groove and its oil inlet is connected to the cold oil storage tank, and its oil outlet is connected to the hot oil storage tank; the second circulation pump is installed on the oil pipe between the heat absorbing capillary 41 and the hot oil storage tank.

[0031] In some specific embodiments, the photoelectric conversion mechanism 3 may further include a plurality of second photovoltaic panels, which are fixed on the outer peripheral side of the tower body 1 and in contact with the heat absorbing capillary tubes 41 .

[0032] In some specific embodiments, the plurality of first photovoltaic panels 31 and the plurality of second photovoltaic panels may be in the shape of a triangle, a pentagon or a hexagon.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solar thermal absorption tower, characterized in that: include: A tower body (1), wherein the interior of the tower body (1) is hollow and the top surface thereof is a closed surface, a plurality of plug holes are arranged at intervals on the closed surface, a central tube (5) is fixed inside the tower body (1) along its height direction, a capsule-shaped reflective cover (6) is wrapped and fixed on the outer peripheral side of the central tube (5), and a reflective interlayer is defined between the central tube (5) and the reflective cover (6), and a plurality of light guide holes are arranged on the reflective cover (6); A light-heat conduction mechanism (2), the light-heat conduction mechanism (2) comprising a motor (21), a bracket (22), a plurality of micro-curved panels (23) and a plurality of light beams (24) for conducting light and heat, the motor (21) being fixed on the closed surface and having an output shaft thereof rotating in a direction perpendicular to the height of the tower body (1); the bracket (22) being fixed on the output shaft of the motor (21); the plurality of micro-curved panels (23) being fixed in an array on the top surface of the bracket (22); the top ends of the plurality of light beams (24) being respectively fixed on the bracket (22) corresponding to the focal points of the plurality of micro-curved panels (23) and the bottom ends thereof respectively passing through the plurality of plug holes and the plurality of light guide holes in sequence and extending into the reflective interlayer; The photoelectric conversion mechanism (3) and the thermoelectric conversion mechanism (4) are both located in the reflective interlayer and absorb photovoltaic and photothermal energy entering the reflective interlayer.

2. A solar thermal absorption tower according to claim 1, characterized in that: The photoelectric conversion mechanism (3) comprises a storage battery and a plurality of first photovoltaic panels (31); the plurality of first photovoltaic panels (31) are all located in the reflective interlayer and attached to the outer wall of the central tube (5) and the inner wall of the reflective cover (6); the storage battery is located outside the tower body (1) and is electrically connected to the plurality of first photovoltaic panels (31).

3. A solar thermal absorption tower according to claim 2, characterized in that: The thermoelectric conversion mechanism (4) comprises a cold oil storage tank, a hot oil storage tank, a first circulating pump, a water tank and a steam turbine generator, wherein the outlets and inlets of the cold oil storage tank, the central cylinder (5) and the hot oil storage tank are connected in series in sequence, and the first circulating pump is installed on the oil pipe between the oil outlet of the central cylinder (5) and the oil inlet of the hot oil storage tank; a hot oil conduit is spirally fixed on the outer peripheral side of the water storage tank along its height direction, the oil inlet of the hot oil conduit is connected to the hot oil storage tank and the oil outlet is connected to the cold oil storage tank; the steam inlet of the steam turbine generator is connected to the steam outlet of the water storage tank.

4. A solar thermal absorption tower according to claim 3, characterized in that: The thermoelectric conversion mechanism (4) also includes a heat absorbing capillary (41) and a second circulation pump. The outer peripheral side of the tower body (1) is provided with spirally arranged fixing grooves along its height direction. The heat absorbing capillary (41) is embedded in the fixing groove along the spiral direction of the fixing groove, and its oil inlet is connected to the cold oil storage tank, and its oil outlet is connected to the hot oil storage tank. The second circulation pump is installed on the oil pipe between the heat absorbing capillary (41) and the hot oil storage tank.

5. A solar thermal absorption tower according to claim 4, characterized in that: The photoelectric conversion mechanism (3) further comprises a plurality of second photovoltaic panels, wherein the plurality of second photovoltaic panels are fixed on the outer peripheral side of the tower body (1) and are in contact with the heat absorbing capillary tubes (41).

6. A solar thermal absorption tower according to claim 5, characterized in that: The plurality of first photovoltaic panels (31) and the plurality of second photovoltaic panels are all in the shape of a triangle, a pentagon or a hexagon.

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