Planting greenhouse with photovoltaic panel array

Abstract

The utility model provides a planting greenhouse with a photovoltaic panel array, which comprises the photovoltaic panel array, the photovoltaic panel array is arranged between two adjacent peak-shaped steel frames, two sides of the top of each peak-shaped steel frame are provided with reflectors, and the reflectors face the photovoltaic panel array between the two adjacent peak-shaped steel frames; shade-loving plants are planted below the photovoltaic panel array; the peak-shaped steel frame serves as a planting greenhouse. Reflecting plates are arranged on the left side and the right side of the photovoltaic panel array, light rays irradiated by different solar altitude angles can be reflected back to a photovoltaic assembly to improve the reflection quantity adapting to different solar altitude angles in four seasons of spring, summer, autumn and winter, meanwhile, the reflecting plates can resist higher wind speed, and the capacity of adapting to severe weather is improved. The planting greenhouse is arranged below the reflecting plate, the top of the planting greenhouse is made of light-transmitting materials with special selectivity, refracted light can be utilized for photosynthesis of plants, a relatively closed inner space is formed, growth and development of the plants are facilitated, and output is increased.

Description

Technical Field

[0001] The utility model belongs to the field of photovoltaic technology, and in particular relates to a planting greenhouse with a photovoltaic panel array. Background Art

[0002] Photovoltaic power generation is a clean energy source, and its main cost is composed of photovoltaic components (generator panels). With the advancement of technology and the rapid development of the market, the cost per kilowatt-hour has also dropped significantly. This form of energy production is more suitable in the deserts next to the northwest and the arid areas in the west. However, in the developed eastern regions, due to the short annual sunshine hours, changeable weather, few suitable sites and dust pollution, the amount of electricity that can be generated by the panels is not long-lasting and stable, and is generally lower than the nominal power generation. In particular, small users cannot feel the benefits brought by the cost reduction, and their comprehensive cost per kilowatt-hour is still high, which affects the promotion of technology.

[0003] Chinese patent CN109245708A discloses a simple reflective efficiency enhancement device for a fixed flat-panel photovoltaic module array power generation system. A reflector is installed in the gap between the front photovoltaic module and the rear photovoltaic module. One end of the reflector is connected to the top edge of the front photovoltaic module through a reflector connector, and the other end is connected to the bottom edge of the rear photovoltaic module through a reflector connector, thereby realizing gain power generation. However, the single-sided fixed reflector has the problem that the solar altitude angle affects the reflective surface. In my country, which belongs to the northern hemisphere, the general component panels are arranged facing south, and the angle is mainly facing (vertical) the sun at the vernal equinox / autumnal equinox. In this way, when the summer solstice / winter solstice comes, the solar radiation energy can be absorbed at a relatively efficient incident angle. The simple reflective device connected on one side has a very general effect. The actual measured value of the power generation gain of only about 7% also illustrates the problem. If the material and maintenance costs are taken into account, the cost performance is not high.

[0004] Chinese patent CN205265606U discloses a solar photovoltaic module power generation system using light reflection, which is composed of a photoelectric sensor and multiple groups of reflectors. The mutual reflection of light between the components is used to make the surface of the photovoltaic module receive more irradiation per unit time, thereby increasing the single-watt power generation of the photovoltaic power generation system and reducing the cost of electricity. However, according to the measured data of 9 days in the embodiment, the increased power generation is only about 9%. The three additional groups of reflectors and photoelectric sensors not only increase the cost a lot, but the first reflector standing high is very susceptible to swing damage caused by wind, which is not reasonable in structure. Unless a large number of supporting components are added, it is difficult to withstand the ravages of windy weather.

[0005] Chinese patent CN114400957A discloses an oblique single-axis light-pocketing bifacial photovoltaic module power generation system, which can collect and reflect the diffused light on the substrate to the back of the photovoltaic module through the reflective surface on the substrate, forming "pocketing light", thereby increasing the power generation gain of the back of the photovoltaic module, effectively solving the influence of different ground environments on the power generation of bifacial photovoltaic modules in the prior art, so that the bifacial photovoltaic modules always maintain a consistent, stable and efficient power generation effect, thereby reducing the cost of electricity of the oblique single-axis bifacial photovoltaic module power generation system. However, the photovoltaic panel is on the top, and the channel for light to enter the light-pocketing board needs to pass through the narrow channel formed by the component and the light-pocketing board, which determines that the total light-pocketing energy is not high. Compared with the large-area reflective board, the material investment is huge. In order to form the light-pocketing effect, the component must be raised and the number of fixing brackets must be increased, so the construction and fixed investment is also increased a lot. In addition, with the change of the solar altitude angle, the light-pocketing board is affected by the component on the top, and the light-pocketing board that can truly guide light can only play half of its efficiency, further weakening the energy generated by the light-pocketing. Utility Model Content

[0006] The purpose of the utility model is to provide a planting greenhouse with a photovoltaic panel array in view of the above-mentioned shortcomings.

[0007] To this end, the above-mentioned purpose of the utility model is achieved through the following technical solutions:

[0008] A planting greenhouse with a photovoltaic panel array, comprising a photovoltaic panel array, characterized in that: the photovoltaic panel array is arranged between two adjacent peak-shaped steel frames, and reflective plates are arranged on both sides of the top of the peak-shaped steel frames, and the reflective plates are arranged to face the photovoltaic panel array between the two adjacent peak-shaped steel frames;

[0009] The area below the photovoltaic panel array is used as a shade-loving planting area;

[0010] The peak-shaped steel frame is used as a planting greenhouse.

[0011] While adopting the above technical solutions, the present invention can also adopt or combine the following technical solutions:

[0012] As a preferred technical solution of the utility model: the reflector is arranged on a reflector frame, and an opening and closing control rod is provided between the reflector frame and the top of the peak-shaped steel frame, and the opening and closing control rod is used to open or close the reflector frame.

[0013] As a preferred technical solution of the utility model: the reflective plate adopts a dichroic film, through which the light of the wavelength band preferred by the plants in the greenhouse can be projected, while reflecting the rest of the light.

[0014] The utility model provides a planting greenhouse with a photovoltaic panel array, which has the following beneficial effects:

[0015] 1) There are reflectors on both sides of the photovoltaic panel array, which can reflect light from different solar altitude angles back to the photovoltaic modules. The complementarity of the left and right sides can improve the reflection amount to adapt to different solar altitude angles in spring, summer, autumn and winter. At the same time, compared with the solar photovoltaic module power generation system using light reflection disclosed in Chinese patent CN205265606U, the reflector can withstand higher wind speeds, improving the overall ability to adapt to bad weather;

[0016] 2) A planting greenhouse is set up under the reflective board. The top of the planting greenhouse is made of a dichroic film with selective light transmission and selective light reflection. The refracted light can be used for photosynthesis of plants, forming a relatively closed internal space, which can smooth the large changes in surface temperature caused by the change of seasons, is conducive to the growth and development of plants, and increases output;

[0017] 3) Set up shade-loving planting areas under the photovoltaic panel array to make full use of space and reduce waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A side view of a planting greenhouse with a photovoltaic panel array provided by the utility model;

[0019] Figure 2 This is a diagram of the reflector frame after it is opened;

[0020] Figure 3 It is a top view of the peak-shaped steel frame;

[0021] Figure 4 It is a top view of the reflector and photovoltaic panel array;

[0022] Figure 5 This is a schematic diagram of the solar altitude angle during the spring or autumn equinox;

[0023] Figure 6 This is a schematic diagram of the solar altitude angle at the summer solstice;

[0024] Figure 7 This is a schematic diagram of the solar altitude angle at the winter solstice;

[0025] In the figure: 1- photovoltaic panel array; 2- peak-shaped steel frame; 21- reflector; 3- shade-loving planting area; 4- planting greenhouse; 5- spring / autumn equinox light angle; 7- summer solstice light angle; 8- winter solstice light angle DETAILED DESCRIPTION

[0026] The present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1-Figure 4As shown, a planting greenhouse with a photovoltaic panel array includes a photovoltaic panel array 1, which is arranged between two adjacent peak-shaped steel frames 2. Reflectors 21 are provided on both sides of the top of the peak-shaped steel frames 2, and the reflectors 21 are arranged to face the photovoltaic panel array 1 between the two adjacent peak-shaped steel frames 2; the area below the photovoltaic panel array 1 is used as a shade-loving planting area 3; and the peak-shaped steel frames 2 serve as a planting greenhouse.

[0028] The reflector 21 is arranged on the reflector frame. An opening and closing control rod is arranged between the reflector frame and the top of the peak-shaped steel frame 2. The opening and closing control rod is used to open or close the reflector frame.

[0029] The reflector 21 is made of a light splitting film.

[0030] Specifically, the above-mentioned planting greenhouse with photovoltaic panel array is implemented in the following manner:

[0031] Choose an open, unobstructed flat surface or a south-facing slope, such as Figure 1 , Figure 3 As shown, a photovoltaic steel frame is set up in an east-west direction. The plane where the photovoltaic panel array 1 is located should be at an angle perpendicular to the solar altitude angle during the spring equinox or autumn equinox. A peak-shaped steel frame 2 is set up between the two photovoltaic panel arrays 1. A reflector 21 is placed on the reflector frame of the peak-shaped steel frame 2, and the lower end is fixed to the edge of the photovoltaic panel array 1 with a hinge, and the upper end is connected to an opening and closing control rod to form a combination. Figure 4 Plane layout.

[0032] The area below the photovoltaic panel array 1 serves as a shade-loving planting area 3, where shade-loving Chinese herbal medicines or economic crops such as Polygonatum sibiricum and Gastrodia elata can be planted. The space formed at the bottom of the peak-shaped steel frame 2, after being separated from the space below the photovoltaic panel array 1, forms a relatively closed planting greenhouse 4, which acts as a sun shed and is used to grow greenhouse vegetables and fruits, or raise poultry, livestock and aquatic products, etc., to achieve the effect of comprehensive utilization.

[0033] When the temperature in the planting greenhouse 4 is too high, the reflector 21 can be opened upward (that is, the reflector frame can be pushed open by the opening and closing control rod) to make the hot air rise and achieve the purpose of cooling the greenhouse. When the temperature in the planting greenhouse 4 is too low, the reflector 21 is closed (that is, the reflector frame is pulled up by the opening and closing control rod) to keep warm, and the waste heat generated by the photovoltaic panel array 1 is used to heat the planting greenhouse 4.

[0034] like Figure 5-Figure 7 As shown, when the solar altitude angle changes with the angle of the summer solstice or the winter solstice, the angle of the reflector 21 on the side that is conducive to reflection can be adjusted, such as Figure 2 As shown, the servo motor is remotely controlled to drive the opening and closing control rod, and the frequency is adjusted once a month to increase the amount of reflected light energy received by the photovoltaic panel array 1.

[0035] The above-mentioned specific implementation methods are used to explain the present invention and are only preferred embodiments of the present invention, rather than limiting the present invention. Any modifications, equivalent substitutions, improvements, etc. made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A planting greenhouse with a photovoltaic panel array, comprising a photovoltaic panel array (1), characterized in that: The photovoltaic panel array (1) is arranged between two adjacent peak-shaped steel frames (2), and reflective plates (21) are arranged on both sides of the top of the peak-shaped steel frame (2), and the reflective plates (21) are arranged to face the photovoltaic panel array (1) between the two adjacent peak-shaped steel frames (2); The area below the photovoltaic panel array (1) serves as a shade-loving planting area (3); The peak-shaped steel frame (2) serves as a planting greenhouse (4).

2. The planting greenhouse with photovoltaic panel array according to claim 1, characterized in that: The reflector (21) is arranged on a reflector frame, and an opening and closing control rod is arranged between the reflector frame and the top of the peak-shaped steel frame (2), and the opening and closing control rod is used to open or close the reflector frame.

3. The planting greenhouse with photovoltaic panel array according to claim 1 or 2, characterized in that: The reflective plate (21) is a light splitting film.

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