A photovoltaic system combined with agriculture

Abstract

A photovoltaic system combined with agriculture relates to the field of photovoltaic technology and is used to save land resources while giving full play to the respective functions of solar greenhouses and photovoltaics. It includes solar greenhouses, which are arranged in rows, and photovoltaic modules are provided on the top of each solar greenhouse and on the ground between each two adjacent solar greenhouses; the spacing between each two adjacent solar greenhouses, and the height and position of the photovoltaic modules located on the ground are such that when the solar altitude angle is minimum, sunlight irradiates all the photovoltaic panels of the photovoltaic modules located on the ground. Through the combination of solar greenhouses and photovoltaic modules, the present invention can reasonably utilize the idle area between solar greenhouses and the space above the solar greenhouses to build photovoltaic modules for photovoltaic power generation; by designing the spacing between solar greenhouses and the height position of photovoltaic modules, when the solar altitude angle is minimum, the entire photovoltaic module between two adjacent solar greenhouses can be irradiated with sunlight, thereby making full use of sunlight.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaics, in particular to a photovoltaic system combined with agriculture. Background Art

[0002] Agriculture is an important industry in my country. The combination of photovoltaics as a new energy source and solar greenhouses is beneficial to the development of agriculture without affecting the normal operation of photovoltaics. Since both photovoltaics and solar greenhouses require direct sunlight, photovoltaics and solar greenhouses cannot block each other. The existing technology urgently needs a photovoltaic system combined with agriculture, which can make solar greenhouses and photovoltaics play their respective roles while cooperating with each other to save land resources. Summary of the invention

[0003] The purpose of the present invention is to provide a photovoltaic system combined with agriculture, which is used to save land resources by giving full play to the respective functions of solar greenhouse and photovoltaic.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a photovoltaic system combined with agriculture, including solar greenhouses, which are arranged in rows, and each solar greenhouse has photovoltaic modules on the top and on the ground between each two adjacent solar greenhouses; the distance between each two adjacent solar greenhouses, and the height and position of the photovoltaic modules located on the ground are such that when the solar altitude angle is minimum, sunlight irradiates all of the photovoltaic panels of the photovoltaic modules located on the ground.

[0005] Furthermore, the photovoltaic assembly includes a photovoltaic mounting plate and a photovoltaic bracket, the photovoltaic mounting plate has a photovoltaic panel inside, the photovoltaic bracket is a right-angled triangle structure, the photovoltaic bracket is a plurality of parallelly arranged photovoltaic brackets and each adjacent two photovoltaic brackets are fixedly connected by a connecting rod, the photovoltaic mounting plate is located on the hypotenuse of the photovoltaic bracket, and the horizontal right-angled side of the photovoltaic bracket is fixedly connected to the rear wall of the solar greenhouse.

[0006] Furthermore, a vertical support rod is provided on the rear wall of the solar greenhouse, and a lower support rod is provided between the vertical support rod and the horizontal right-angle side of the photovoltaic support.

[0007] Furthermore, one end of the hypotenuse of the photovoltaic bracket is hinged to the horizontal right-angled side of the photovoltaic bracket, and the other end of the hypotenuse of the photovoltaic bracket is slidingly connected to the vertical right-angled side of the photovoltaic bracket. The photovoltaic bracket has an adjustment mechanism that drives the hypotenuse of the photovoltaic bracket to swing around the hinge point.

[0008] Furthermore, the adjustment mechanism includes a crank, which is threadedly connected to the connecting rod, one end of the crank is connected to the hypotenuse of the photovoltaic bracket through a universal joint, and the other end of the crank is a driving part.

[0009] Furthermore, it also includes a water collection module, which collects steam water in the solar greenhouse and uses the steam water to clean the photovoltaic panels of the photovoltaic modules. The water after cleaning the photovoltaic panels flows into the solar greenhouse.

[0010] Furthermore, it also includes a water guide module, which includes a recovery tank and a conduit. The recovery tank is located at the bottom of the photovoltaic component, and the water for cleaning the photovoltaic panel flows along the surface of the photovoltaic panel into the recovery tank; one end of the conduit is connected to the bottom of the recovery tank, and the other end of the conduit extends into the solar greenhouse.

[0011] The beneficial effects of the present invention are:

[0012] (1) Through the combination of solar greenhouses and photovoltaic modules, the vacant space between solar greenhouses and the space above the solar greenhouses can be reasonably utilized to build photovoltaic modules for photovoltaic power generation;

[0013] (2) By designing the spacing between solar greenhouses and the height of photovoltaic modules, when the solar altitude angle is minimum, the entire photovoltaic module between two adjacent solar greenhouses can be exposed to sunlight, thereby making full use of sunlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the arrangement of the solar greenhouse and photovoltaic modules of the present invention;

[0015] Figure 2 It is the path of sunlight when the sun altitude angle is minimum;

[0016] Figure 3 It is the path of sunlight when the solar altitude angle increases;

[0017] Figure 4 It is a front view of the first embodiment of the photovoltaic module;

[0018] Figure 5 It is a front view of the second embodiment of the photovoltaic module;

[0019] Figure 6 A schematic diagram for adjusting the tilt angle of a photovoltaic panel of a photovoltaic module;

[0020] Figure 7 It is a schematic diagram of the connection between two adjacent photovoltaic brackets;

[0021] Figure 8 It is a schematic diagram of the assembly of photovoltaic modules and water guide modules;

[0022] In the figure: 1 solar greenhouse, 11 rear wall, 12 vertical support rod, 2 photovoltaic bracket, 21 lower support rod, 22 universal joint, 23 hypotenuse, 24 hinge axis, 3 photovoltaic mounting plate, 4 crank handle, 5 connecting rod, 51 threaded hole, 6 recovery trough, 61 conduit, 7 sun. DETAILED DESCRIPTION

[0023] like Figures 1 to 8 As shown, the present invention includes a solar greenhouse 1, a photovoltaic module, a water collection module and a water guide module. The present invention is described in detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 8 As shown, a photovoltaic system combined with agriculture includes solar greenhouses 1, which are arranged in rows, and photovoltaic modules are provided on the top of each solar greenhouse 1 and on the ground between each two adjacent solar greenhouses 1; Figure 2 As shown, the distance between each two adjacent solar greenhouses 1, and the height and position of the photovoltaic modules located on the ground are such that when the sun 7 altitude angle is the smallest, the sunlight irradiates all the photovoltaic panels of the photovoltaic modules located on the ground. In this way, between each two adjacent solar greenhouses, the setting of one solar greenhouse and its top photovoltaic modules will not affect the lighting of the adjacent solar greenhouses and the photovoltaic modules between the two solar greenhouses, thereby realizing the combination of solar greenhouses and photovoltaic modules and making full use of land resources. Figure 3 As shown, when the solar altitude angle is the smallest, all photovoltaic modules located on the ground can be illuminated by sunlight. When the solar altitude angle increases, all photovoltaic modules located on the ground can be illuminated by sunlight.

[0025] In order to ensure the structural strength of the photovoltaic modules and facilitate the assembly between the photovoltaic modules and the solar greenhouse 1, Figure 4 As shown, the photovoltaic assembly includes a photovoltaic mounting plate 3 and a photovoltaic bracket 2. The photovoltaic mounting plate 3 is equipped with a photovoltaic panel, and the photovoltaic bracket 2 is a right-angled triangle structure. Figure 7 As shown, the photovoltaic brackets 2 are multiple and arranged in parallel, and every two adjacent photovoltaic brackets 2 are fixedly connected by a connecting rod 5. The photovoltaic mounting plate is located on the hypotenuse 23 of the photovoltaic bracket 2, and the horizontal right-angled side of the photovoltaic bracket 2 is fixedly connected to the rear wall 11 of the solar greenhouse 1.

[0026] In order to further enhance the structural strength of the photovoltaic module, the rear wall 11 of the solar greenhouse 1 is provided with a vertical support rod 12, such as Figure 4 As shown, there is a lower support rod 21 between the vertical support rod 12 and the horizontal right angle side of the photovoltaic bracket 2. In this way, the photovoltaic bracket 2 is a triangular structure, and the horizontal right angle side of the photovoltaic bracket 2 and the vertical support rod 12 and the lower support rod 21 form a triangular structure, and the overall structure is stable.

[0027] Due to the change of seasons, the solar altitude angle is constantly changing. In order to make the sunlight as direct as possible to the photovoltaic panels, Figure 5As shown, one end of the hypotenuse 23 of the photovoltaic bracket 2 is hingedly connected to the horizontal right-angle side of the photovoltaic bracket 2 through the hinge shaft 24, and the other end of the hypotenuse 23 of the photovoltaic bracket 2 is slidably connected to the vertical right-angle side of the photovoltaic bracket 2. The sliding trajectory is an arc line, and for this purpose, an arc groove is provided on the side wall of the vertical right-angle side of the photovoltaic bracket 2. The end face of the hypotenuse 23 of the photovoltaic bracket 2 is in contact with the end face of the vertical right-angle side of the photovoltaic bracket 2, and the photovoltaic bracket 2 has an adjustment mechanism for driving the hypotenuse 23 of the photovoltaic bracket 2 to swing around the hinge point. The adjustment mechanism includes a crank 4, which is threadedly connected to the connecting rod 5, one end of the crank 4 is connected to the hypotenuse 23 of the photovoltaic bracket 2 through a universal joint 22, and the other end of the crank 4 is a driving part. When in use, the driving part of the crank 4 is shaken to rotate the crank 4, and at this time, the hypotenuse 23 of the photovoltaic bracket 2 is pulled by the universal joint 22 to swing around the hinge shaft 24, so that the inclination angle of the hypotenuse 23 of the photovoltaic bracket 2 changes. When the solar altitude angle increases, the handle 4 is shaken to reduce the inclination angle of the hypotenuse 23 of the photovoltaic bracket 2. Figure 6 As shown, so that the sunlight can directly hit the photovoltaic panel as much as possible. To facilitate the installation of the crank 4, as shown Figure 7 As shown, a threaded hole 51 is provided on the connecting rod 5 , and the threaded hole 51 is threadedly connected to the crank 4 .

[0028] In order to clean the photovoltaic modules and increase the photoelectric conversion efficiency, the photovoltaic system of the present invention also includes a water collection module. The water collection module collects steam water in the solar greenhouse 1, and uses the steam water to clean the photovoltaic panels of the photovoltaic modules. The water after cleaning the photovoltaic panels flows into the solar greenhouse 1. The steam water in the solar greenhouse mainly flows along the plastic film of the solar greenhouse. Therefore, a water collection trough is placed on the ground inside the solar greenhouse to collect the steam water left on the plastic film of the solar greenhouse. The steam water does not contain soil or contains very little soil, and can be used to clean the photovoltaic panels of the photovoltaic modules. In order to recycle the dirty water after cleaning the photovoltaic panels, the present invention also includes a water guide module, such as Figure 8 As shown, the water guide module includes a recovery tank 6 and a conduit 61. The recovery tank 6 is located at the bottom of the photovoltaic module. The water for cleaning the photovoltaic panel flows along the surface of the photovoltaic panel into the recovery tank 6; one end of the conduit 61 is connected to the bottom of the recovery tank 6, and the other end of the conduit 61 extends into the solar greenhouse 1. The dirty water after cleaning the photovoltaic panel flows along the photovoltaic panel into the recovery tank 6, and then flows to the ground of the solar greenhouse 1 through the conduit 61. By guiding the other end of the conduit 61 to the roots of the plants, irrigation of the plants can be achieved.

[0029] The beneficial effects of the invention are as follows: through the combination of solar greenhouses and photovoltaic modules, the free space between solar greenhouses and the space above the solar greenhouses can be reasonably utilized to build photovoltaic modules for photovoltaic power generation; by designing the spacing between solar greenhouses and the height position of photovoltaic modules, when the solar altitude angle is the smallest, the entire photovoltaic module between two adjacent solar greenhouses can be irradiated with sunlight, thereby making full use of sunlight. By setting the adjustment mechanism, the inclination angle of the photovoltaic panel can be adjusted according to the change of the solar altitude angle to ensure the photoelectric conversion efficiency. The setting of the water collection module can fully recycle the evaporated water in the solar greenhouse and use it to clean the surface of the photovoltaic panel, thereby ensuring the photoelectric conversion efficiency. The dirty water after cleaning the photovoltaic panel is guided to the solar greenhouse 1 through the water guide module for irrigation of plants, thereby realizing the recycling and reuse of water resources.

Claims

1. A photovoltaic system combined with agriculture, characterized in that: It includes solar greenhouses, which are arranged in rows, and photovoltaic modules are provided on the top of each solar greenhouse and on the ground between each two adjacent solar greenhouses; the distance between each two adjacent solar greenhouses, and the height and position of the photovoltaic modules located on the ground are such that when the solar altitude angle is minimum, sunlight irradiates all of the photovoltaic panels of the photovoltaic modules located on the ground; the photovoltaic modules include photovoltaic mounting plates and photovoltaic brackets, the photovoltaic mounting plates have photovoltaic panels, the photovoltaic brackets are of right-angled triangle structure, the photovoltaic brackets are multiple and arranged in parallel, and each two adjacent photovoltaic brackets are fixedly connected by connecting rods, the photovoltaic mounting plates are located on the hypotenuse of the photovoltaic brackets, and the horizontal right-angled side of the photovoltaic brackets is fixedly connected to the rear wall of the solar greenhouse; one end of the hypotenuse of the photovoltaic bracket is connected to the horizontal right angle of the photovoltaic bracket The photovoltaic bracket is hinged on the side, and the other end of the hypotenuse of the photovoltaic bracket is slidably connected to the vertical right-angled side of the photovoltaic bracket. The photovoltaic bracket is provided with an adjustment mechanism for driving the hypotenuse of the photovoltaic bracket to swing around the hinge point; the adjustment mechanism includes a crank, and the crank is threadedly connected to the connecting rod, one end of the crank is connected to the hypotenuse of the photovoltaic bracket through a universal joint, and the other end of the crank is a driving part; it also includes a water collection module, the water collection module collects steam water in the solar greenhouse, and uses the steam water to clean the photovoltaic panels of the photovoltaic module, and the water after cleaning the photovoltaic panels flows into the solar greenhouse; it also includes a water guide module, the water guide module includes a recovery trough and a conduit, the recovery trough is located at the bottom of the photovoltaic module, and the water used to clean the photovoltaic panels flows along the surface of the photovoltaic panels into the recovery trough; one end of the conduit is connected to the bottom of the recovery trough, and the other end of the conduit extends into the solar greenhouse.

2. A photovoltaic system combined with agriculture according to claim 1, characterized in that: A vertical support rod is provided on the rear wall of the solar greenhouse, and a lower support rod is provided between the vertical support rod and the horizontal right-angle side of the photovoltaic support.

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