JP6239329B2 - Solar power generation equipment - Google Patents

Description

  The present invention relates to a photovoltaic power generation facility constructed by arranging a large number of photovoltaic power generation panels on a relatively large land.

  In solar power generation facilities constructed on relatively large land, weeds often grow on the ground where solar panels are placed after construction. The problem of obstructing the power generation function arises. In order to avoid such problems, it is necessary to periodically remove weeds. However, since solar power generation equipment called mega solar is built on a vast area, it takes a lot of effort to remove weeds. And time is spent.

  In addition, as a countermeasure against weeds in photovoltaic power generation facilities, there is a method of covering the ground surface with asphalt, concrete or a weedproof sheet, but if the ground surface is covered with these materials, the temperature above the ground surface rises. Therefore, there is a problem that the power generation efficiency of the solar panel is lowered.

  On the other hand, although it is a field different from photovoltaic power generation facilities, in the field of road construction technology, weeds are prevented from germinating and growing by forming a pavement layer with water permeability and herbicidal properties on the surface layer. The technique which performs is proposed (for example, refer patent document 1, 2).

JP 2012-136840 A JP 2013-50022 A

  If the grass protection technology described in Patent Documents 1 and 2 is applied to the land where the photovoltaic power generation facility is constructed, it is predicted that a predetermined herbicidal effect will be obtained, but large-scale photovoltaic power generation In the case of equipment, since the construction area is vast, the actual situation is that it cannot be easily adopted from the viewpoint of workability and cost.

  Therefore, the problem to be solved by the present invention is to provide a solar power generation facility that is easy to construct, can suppress the temperature rise of the solar panel, and is difficult to grow weeds.

Solar power generation equipment of the present invention, the particle size crushed stone 0.075Mm～40mm, the cement solidifying material, a crumb agent, a mixture comprising water and pouring directly to on the ground comprising a surface layer formed by solidifying, before Symbol a post erected by inserting the perforated vertical hole up to the ground through the surface layer, and a solar panel supported by said posts It is characterized by that. Here, "directly Da設on ground" refers to not interposed the other materials between the surface layer and the ground.

  With such a configuration, it includes any one or more of crushed stone, pure sand soil, and earth material (hereinafter abbreviated as crushed stone), cement-based solidifying material, aggregating agent, and water. In the mixture, an aggregated structure in which crushed stone and the cement-based solidified material are three-dimensionally bonded is formed by the action of ions contained in the aggregating agent, and continuous voids are generated in the mixture. Therefore, if these mixtures are cast on the ground and solidified, a surface layer having excellent water permeability and water retention can be easily formed, and summer seasons and the like where the temperature is high are retained in the surface layer. Since moisture evaporates and takes heat of vaporization, the temperature rise of the solar panel can be suppressed.

  In addition, the crushed stone contained in the surface layer is the main material that keeps the surface layer in a certain shape, and the aggregating agent exerts the action of changing the crushed stone and the solidifying material into a three-dimensional aggregated structure, and a cement-based solidifying material. Acts to harden the aggregate structure in the surface layer formed by the aggregate agent to such an extent that it is not destroyed by external force. Therefore, even if weed seeds fly to the surface portion of the surface layer after construction, it becomes difficult to germinate, and weed growth can be prevented.

  Furthermore, since the crushed stones are scattered in the aggregate structure, the strength of the surface layer, in particular, the compressive strength can be increased, so that a work vehicle or the like can pass on the surface layer after solidification, and is performed thereafter. Workability such as installation of solar panels is also good.

  Further, as the aggregating agent, it is desirable to use a polymer compound composed of a composite of a magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethyleneimine.

Furthermore, in the photovoltaic power generation facilities of the present invention, the particle size of the crushed stone Ru 0.075mm~40mm der (so-called, Ru crushed stone der of 40mm under).

  According to the present invention, it is possible to provide a photovoltaic power generation facility that is easy to construct, can suppress an increase in the temperature of the solar panel, and hardly grows weeds.

It is a vertical sectional view showing a part of photovoltaic power generation equipment which is an embodiment of the present invention. FIG. 2 is a partially enlarged view of FIG. 1. It is a figure which shows the construction procedure of the surface layer which comprises the solar energy power generation equipment shown in FIG. It is a figure which shows the construction procedure of the solar power generation facility shown in FIG.

  Hereinafter, based on drawings, the photovoltaic power generation equipment 100 which is embodiment of this invention is demonstrated. As shown in FIGS. 1, 2, and 3, the photovoltaic power generation facility 100 is provided with a mixture 10 including a crushed stone 11 under 40 mm, a cement-based solidifying material 12, an aggregating agent 13, and water 14. The surface layer 22 formed by directly placing and solidifying on the surface 21, the plurality of columns 31, 32 standing in contact with the ground 21 through the surface layer 22, and the columns 31, 32 And a solar panel 30 supported by.

  Here, the construction procedure of the photovoltaic power generation facility 100 will be described with reference to FIGS. 3 and 4. As shown in FIG. 3, a mixture 10 is formed by adding crushed stone 11, cement-based solidifying material 12, aggregating agent 13, and water 14 into a mixing container 20 and stirring sufficiently.

Since the mixing amount of the cement-based solidifying material 12, the aggregating agent 13, and the water 14 with respect to the crushed stone 11 is set according to the construction conditions, it cannot be determined uniformly. For example, in the present embodiment, the following setting is used. It was constructed.
For one cubic meter of crushed stone 11 (particle size 0.075 mm to 40 mm),
Cement-based solidifying material 12: 80-100 kg
Aggregating agent 13: 1.0 to 2.0 L
Water 14: 60-100L

  The aggregating agent 13 is not particularly limited, but in this embodiment, a limited company that is a drug containing a polymer compound composed of a complex of a magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethyleneimine “SS-M1 (trade name)” of Global Research Laboratory was used.

  As shown in FIG. 3, the mixture 10 formed in the mixing container 20 is placed on the ground 21, spread, and after rolling and solidifying as time elapses. The surface layer 22 is formed. Although the thickness of the surface layer 22 can be arbitrarily set according to the construction conditions, in this embodiment, the thickness after solidification is about 10 cm.

  When the surface layer 22 is formed on the ground 21, as shown in FIG. 4A, a vertical hole 25 that penetrates the surface layer 22 and reaches the ground 21 is drilled. Since the solidified surface layer 22 has a strength that does not collapse even if the vertical hole 25 is drilled, the drilling operation is easy. The method of opening the vertical hole 25 is not limited. For example, when installing a guardrail on a general road or the like, “core drill (core removal ) "Or the like.

  When the perforation of the vertical hole 25 is completed, as shown in FIG. 4B, the columns 31 and 32 are inserted into the vertical hole 25 and fixed in the standing state. As the fixing means for the columns 31 and 32, a method of driving and fixing until the tip portions of the columns 31 and 32 enter the ground 21, or a male screw-shaped spiral portion (not shown) at the tip portions of the columns 31 and 32 is shown. And a method of screwing and fixing the spiral portion into the ground 21 can be employed, but is not limited thereto.

  When the support columns 31 and 32 are erected, as shown in FIG. 4C, the solar power generation equipment 100 is completed when the solar panels 30 are attached to the support columns 31 and 32 so as to be supported in a predetermined inclination posture. To do.

  In the process shown in FIG. 3, in the mixture 10 including the crushed stone 11, the cement-based solidifying material 12, the aggregating agent 13 and the water 14, the crushed stone 11 and the cement-based solidifying material are caused by the action of ions contained in the aggregating agent 13. 12 is formed in a three-dimensionally aggregated structure, and a continuous void is generated in the mixture 10 in due course. Therefore, if these mixtures 10 are cast on the ground 21 and solidified, the surface layer 22 having excellent water permeability and water retention is easily formed. The surface layer 22 having water permeability and water retentivity can efficiently absorb and store rainwater and the like that has poured down, and excess rainwater can penetrate the surface layer 21 through the surface layer 22. Moreover, since the water | moisture content currently hold | maintained in the surface layer 22 evaporates and takes heat of vaporization in the summertime etc. where temperature is high, the temperature rise of the solar panel 30 can be suppressed.

  The crushed stone 11 contained in the surface layer 22 is a main material that keeps the surface layer 22 in a certain shape, and the aggregating agent 13 has an action of changing the crushed stone 11 and the cement-based solidifying material 12 into a three-dimensional aggregated structure. The cement-based solidifying material 12 acts to solidify the aggregate structure in the surface layer 22 formed by the aggregate agent 13 to such a strength that it cannot be destroyed by a normal external force. Therefore, the surface portion 22a of the surface layer 22 after construction has little play sand, and even if weed seeds fly, they do not germinate, and weed growth can be prevented.

  Furthermore, since the crushed stones 11 are scattered in the aggregate structure, the strength of the surface layer 22, particularly the compressive strength, can be increased, so that a construction vehicle can pass on the surface 22 a of the surface layer 22, and sunlight The installation workability of the panel 30 is also good. In the present embodiment, only 40 mm under crushed stone 11 is used as one of the materials forming the surface layer 22, but instead of the crushed stone 11 or in combination with the crushed stone 11, pure sand or earth material is used. You can also Moreover, when using earth material, the earth material generated at the construction site can also be used.

  In addition, embodiment described based on FIGS. 1-4 shows an example of this invention, and the solar power generation facility of this invention is not limited to embodiment mentioned above.

  The present invention can be widely used as a photovoltaic power generation facility such as a mega solar system in the field of power generation industry.

DESCRIPTION OF SYMBOLS 10 Mixture 11 Crushed stone 12 Cement-type solidification material 13 Aggregating agent 14 Water 20 Mixing container 21 Ground 22 Surface layer 22a Surface part 30 Solar panel 31, 32 Prop 100 Solar power generation equipment

Claims (2)

And particle size crushed stone 0.075Mm～40mm, the cement solidifying material, a crumb agent, a surface layer formed by a mixture comprising water and solidifying by pouring directly to on the ground, a post erected by inserting the perforated vertical hole up to the through the pre-SL surface layers, photovoltaic installations, characterized in that and a solar panel supported by said posts .   The photovoltaic power generation facility according to claim 1, wherein a polymer compound comprising a composite of a magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethyleneimine is used as the aggregating agent.

Images