JP6396976B2 - Photovoltaic power generation device and method for manufacturing solar power generation device - Google Patents

Description

  Embodiments described herein relate generally to a solar power generation device and a method for manufacturing the solar power generation device.

  For example, when constructing a large-scale solar power plant such as a mega solar power plant, work related to the installation work of an array device (a steel solar power panel installation stand) that supports the solar power panel Work and panel mounting work, etc.) occupy about 35% of the whole work, and thus improvement in workability is desired.

  Among the assembly operations of the array apparatus, the bolt tightening operation occupies most of the operations. This bolt tightening operation requires a lot of work, depending on the shape of the member to be tightened and the mounting position, and has a great impact on cost and construction period.

  For example, in a 15 MW class mega solar power plant, 940 array devices and 62,040 photovoltaic panels spread over the array devices are required. The number of bolts used to assemble the array device and the array device The total number of bolts used for fixing the photovoltaic panel reaches 62040 × 4 × 22 × 2 = 289520.

JP, 2015-70133, A

  In the conventional case, a grooved steel called C-shaped steel is used for the frame of the array device, the photovoltaic power generation panel, and the joint, but the work of tightening the nut from the bottom of the steel through the bolt through the hole in the steel In addition to being difficult to insert a tool, there is a problem that workability is poor because the tip of the tool hits the steel material.

  In addition, in order for the photovoltaic power generation panel to capture sunlight efficiently, the panel surface must be tilted, so the horizontal material (horizontal beam) of the array device installed in parallel to the ground and photovoltaic power generation Since a gap corresponding to the inclination angle is generated between the inclined member (the beam in the inclined direction) for fixing the panel, it is necessary to fix the beams to each other via a metal fitting such as a piece angle.

  The problem to be solved by the present invention is to provide a photovoltaic power generation apparatus and a method for manufacturing the photovoltaic power generation apparatus that can reduce the number of work steps for installing the photovoltaic power generation panel.

The solar power generation device of the present invention includes a plurality of first support portions arranged in a first row, a second row parallel to the first row, and the plurality of first support portions. Connected to one side of the first side plate, a plurality of second support portions disposed higher than the first side plate, a first side plate fixed on the plurality of first support portions, A first upper plate having a first slope corresponding to a difference in height of the second support portion; and a first lower plate connected to the other side opposite to one side of the first side plate. A first slope steel, a second side plate fixed on the plurality of second support portions, and a second slope connected to one side of the second side plate and corresponding to the first slope A second channel steel having a second upper plate having a second lower plate connected to the other side opposite to the one side of the second side plate;
A third lower plate bolted to the first and second upper plates, a third upper plate provided with a first hole for fixing the panel , the third lower plate, and the third lower plate A plurality of Z-shaped steels each having a third side plate for connecting the upper plate, arranged in parallel, an edge portion in which a groove portion is formed in the lateral direction, and the first hole of the third upper plate A second hole provided at the position of the groove corresponding to the nut, and a nut from below the third upper plate through the second hole and the first hole with the bolt shaft facing downward And a photovoltaic power generation panel fixed by tightening .

  In the method for manufacturing a photovoltaic power generation apparatus according to the present invention, a step of arranging a plurality of first support portions in a first row, and a plurality of second support portions in parallel with the first row. Forming a second row, placing the plurality of first support portions higher than the plurality of first support portions, placing the first channel steel on the plurality of first support portions, and fastening the bolts; Placing the second grooved steel 40 on the second support and fastening the bolt; a slanted first upper plate of the first grooved steel; and a slanted second of the second grooved steel A plurality of Z-shaped steels are laid in parallel on the upper plate of 2, and a third lower plate of each Z-shaped steel and a first upper plate of the first channel steel are respectively provided. Fixing a bolt from above through a nut to a hole provided in the bottom with a nut from below, placing a photovoltaic panel on the third upper plate of the plurality of Z-shaped steels, and lowering the axis downward And a step of fixing a nut from below digit bolt through a hole in the solar panels through the holes of the third upper plate.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the solar power generation device which can reduce the work man-hour concerning the installation work of a solar power generation panel and a solar power generation device can be provided.

1 is a front view showing a schematic configuration of a photovoltaic power generation apparatus according to one embodiment of the present invention. It is a side surface enlarged view of the part of the code | symbol A of FIG. It is an enlarged view of the part of the code | symbol B of FIG. It is an expansion perspective exploded view of the part of numerals C of Drawing 1. It is a figure which shows a bolt fastening operation | work.

Hereinafter, embodiments will be described in detail with reference to the drawings.
FIG. 1 is a front view showing a schematic configuration of a photovoltaic power generator according to one embodiment of the present invention, FIG. 2 is an enlarged perspective view of a portion indicated by symbol A in FIG. 1, and FIG. 3 is a portion indicated by reference symbol B in FIG. 4 is an enlarged side view of a portion indicated by reference numeral C in FIG.
As shown in FIG. 1, this solar power generation device is a solar power generation panel 90 placed on a gantry 1.

  The gantry 1 includes a plurality of (for example, four) first support portions 10 arranged in a first row, and first support portions 10 that are shifted laterally from the rows of the plurality of support portions 10. A plurality of support portions 20 (see FIG. 4) as a plurality of second support portions arranged in two rows and arranged higher than the support portions 10 are provided.

  On the plurality of support portions 10, a groove steel 30 as a horizontal beam is disposed. Further, on the plurality of support portions 20, a groove steel 40 as a second groove steel as a transverse beam is disposed. The channel steel 30 and the channel steel 40 are arranged in parallel.

  On these groove steels 30 and 40, a plurality of Z-shaped steels 50 and 60 as inclined beams (longitudinal beams) intersect with the groove steels 30 and 40 at predetermined intervals (one photovoltaic power generation panel). (Corresponding to a width of 90). That is, the Z-shaped steels 50 and 60 are arranged in a row so as to span between the plurality of channel steels 30 and 40. A photovoltaic power generation panel 90 is fixed to the upper portions of the plurality of Z-shaped steels 50 and 60 with bolts and nuts. Fixing with bolts and nuts shall be defined as “bolt fastening”. Depending on the thing, a washer may be interposed.

  Each support portion 10 includes a steel pipe pile 11 driven into the ground, a support plate 12 fixed to the top of the steel pipe pile 11, an L-shaped steel 13 fixed on the support plate 12, and the L An oblique member 14 and a fired member 15 that are obliquely fixed to the section steel 13 are provided. The diagonal member 14 supports the channel steel 30. The fire striking material 15 supports the Z-shaped steels 50 and 60.

  Each support portion 20 includes a steel pipe pile 21 driven into the ground, a support plate 22 fixed to the upper portion of the steel pipe pile 21, an L-shaped steel 23 fixed on the support plate 22, and the L A diagonal member 24 and a fire striking member 25 (see FIG. 4) which are obliquely fixed to the shape steel 23 are provided.

  The diagonal member 24 supports the channel steel 40. By changing the inclination angle of the diagonal member 24 and the diagonal member 14, the height difference between the grooved steel 30 supported by the support part 10 and the grooved steel 40 supported by the support part 20 can be obtained. The firing material 25 supports the Z-shaped steels 50 and 60.

  As shown in FIG. 2, the channel steel 30 is a channel steel having a substantially U-shaped cross section. The grooved steel 30 includes a first side plate 33 fixed to the upper portions (diagonal members 14) of the plurality of support portions 10 with bolts 16 and nuts 17, and a direction P perpendicular to the surface of the first side plate 33. A first upper plate 32 connected to one side (upper side) of the upper side of the first side plate 33 so as to have a first inclination α corresponding to the difference in height between the support portions 10 and 20; A first lower plate 31 connected to one side of the side plate 33 and the other side (lower side) facing the side plate 33 is provided. The direction P is a horizontal direction as the direction in which the channel steel 30 is fixed as a part of the gantry 1. The diameter of the bolt 16 in this example is M16.

  The channel steel 40 is the same as the channel steel 30, and as shown in FIG. 4, the second lower plate 41 fixed to the upper part (the diagonal member 24) of the plurality of support portions 20, and the first A second upper plate 42 having a second inclination corresponding to the inclination α of the second side plate 43, and a second lower plate 41 connected to the other side opposite to one side of the second side plate 43.

The angle of the first inclination α (and the second inclination) varies depending on whether the installation location of the apparatus is flat or snowy. In the case of flat ground, the inclination angle is preferably set to 10 ° with respect to the horizontal direction, for example, and in the case of snowy ground, it may be set to about 20 ° to 25 °. The angle of the first inclination α (and the second inclination) is preferably in the range of about 5 ° to 30 °.
In addition, the angle described here is only an example, and is appropriately changed according to an installation place (installation environment). The first slope α and the second slope have the same angle as long as they are flat, but they may be different when the place of installation is a slope with unevenness.

  As shown in FIG. 3, the Z-shaped steel 50 is fixed to the first upper plate 32 of the grooved steel 30 (and the second upper plate 42 of the grooved steel 40) with bolts 71 and nuts 74. A lower plate 51, a third upper plate 52 fixed to the photovoltaic power generation panel 90 with bolts 81 and nuts 84, and a third side plate 53 connecting the third lower plate 51 and the third upper plate 52. Have

  The left edge of the third lower plate 51 and the lower edge of the third side plate 53 are connected, and the right edge of the third upper plate 52 and the upper edge of the third side plate 53 are connected. That is, the Z-shaped steel 50 has a shape in which the third lower plate 51 is not positioned under the third upper plate 52, and a working space is generated below when the nut 84 is tightened.

  The third side plate 53 in this example has a height H of 80 mm in consideration of strength and cost. The shaft diameter of the bolt 71 is M12. The shaft diameter of the bolt 81 is M8, and a stainless steel (SUS) material (material) is used for the portion exposed to the outside. The shaft diameters of the bolts 71 and 81 shown here are merely examples, and there are other cases.

  Washers 75 and 76 (see FIG. 4) are interposed between the nut 74 and the first upper plate 32. A spring washer 85 and a flat washer 86 are interposed between the nut 84 and the third upper plate 52.

  A groove portion (step portion) 92 is provided in the lateral direction on both edges of the photovoltaic power generation panel 90, and a hole 91 corresponding to the hole 55 of the upper plate 52 is provided in the groove portion (step portion) 92. ing. When fixing the photovoltaic power generation panel 90 to the upper plate 52, the shaft of the bolt 81 is inserted into the hole 91 provided in the photovoltaic power generation panel 90, passed through the hole 55 on the upper plate 52 side, and the nut 84 from the lower side. Tighten with to fix.

  In this example, a plurality of Z-shaped steels (Z-shaped steel 50 and Z-shaped steel 60) are paired to fix both side edges of one photovoltaic power generation panel 90, and face each other in the direction in which they face each other. It is arranged.

  The configuration of the Z-shaped steel 60 arranged side by side with the Z-shaped steel 50 is also the same. As shown in FIG. 4, the first upper plate 32 of the grooved steel 30 (and the second of the grooved steel 40). A third lower plate 61 fixed to the upper plate 42 by bolts 71 and nuts 74; a third upper plate 62 fixed to the photovoltaic power generation panel 90 by bolts 81 and nuts 84; and a third lower plate. A third side plate 63 connecting the 61 and the third upper plate 62 is provided.

  A hole 65 is provided in the third upper plate 62, and the shaft of the bolt 81 is inserted into the hole 91 of the photovoltaic power generation panel 90, passed through the hole 65 on the upper plate 62 side, and fixed with a nut 84 from the lower side. . A spring washer 85 and a flat washer 86 are interposed between the nut 84 and the third upper plate 62.

Here, a fixing structure between the gantry 1 and the photovoltaic power generation panel 90 will be described with reference to FIG.
As shown in FIG. 4, the support portion 10 and the channel steel 30 of the gantry 1 are fixed via a diagonal member 14. The channel steel 30 and the diagonal member 14 are fixed by bolts 16 and nuts 17 (see FIG. 2). The support portion 20 and the channel steel 40 of the gantry 1 are fixed via a diagonal member 24. By changing the fixing angle of the diagonal members 14 and 24, the difference in height between the support portion 10 and the support portion 20 is obtained.

  In this example, the diagonal member 14 is fixed to the first side plate 33 of the channel steel 30. However, the diagonal member 14 may be fixed to the first lower plate 31 by changing the shape of the upper end portion of the diagonal member 14. .

  The shaft of the bolt 71 is inserted from below into the hole 54 provided at a position where the grooved steel 30 and the Z-shaped steel 50 intersect with each other, and the flat washer 76, the spring washer 75 and the nut 74 are attached with an electric screwdriver 95 from above. It is tightened and fixed. The fixing of the groove-shaped steel 30 and the Z-shaped steel 60 and the fixing of the groove-shaped steel 40 and the Z-shaped steel 60 are the same. The electric screwdriver 95 has a tip diameter corresponding to the M12 size.

  The photovoltaic power generation panel 90 is placed on the gantry 1 assembled in this way, the shaft of the bolt 81 is inserted into the hole 91 of the photovoltaic power generation panel 90 from above, and the spring is formed from below the Z-shaped steels 50 and 60. The washer 85, the flat washer 86 and the nut 84 are fastened and fixed by an electric screwdriver 96. If the shaft diameter of the bolt 81 is, for example, M8, an electric screwdriver 96 having a tip diameter corresponding to the size is used. In addition to M8, the shaft diameter of the bolt 81 may be M6, for example.

Then, the manufacturing method of the solar power generation device of this embodiment is demonstrated with reference to FIG. 1 thru | or FIG.
In this case, first, the plurality of steel pipe piles 11 are driven into the ground so as to form a first row, and the plurality of support portions 10 are arranged in a row.

  Then, the support plate 12 is fixed to the upper portion of the steel pipe pile 11 with bolts and nuts, the L-shaped steel 13 is fixed to the support plate 12 with bolts and nuts, and the diagonal member 14 is inclined to the L-shaped steel 13. Secure with bolts and nuts.

  Subsequently, the plurality of steel pipe piles 21 are driven into the ground so as to form a second row parallel to the first row, and the plurality of support portions 20 are arranged in a row.

  Then, the support plate 22 is fixed to the upper part of the steel pipe pile 21 with bolts and nuts, the L-shaped steel 23 is fixed to the support plate 22 with bolts and nuts, and the swash plate 24 is inclined to the L-shaped steel 23. Secure with bolts and nuts.

  At this time, the angle of the swash plate 24 is fixed to be inclined in the direction in which the swash plate 24 stands up from the diagonal member 14 of the support portion 10, so that the grooved steel support positions of the plurality of support portions 20 are supported in a plurality of ways. A position higher than the grooved steel support position of the portion 10 is set.

  Next, a U-shaped grooved steel 30 is placed over the upper ends of the plurality of diagonal members 14 on the support portion 10 side, and the inner side of the U-shaped (from the side of the grooved steel 30 toward the side of FIG. 3). Bolts 16 are passed through holes (not shown) of the first side plate 33 from the right side, and the nut 17 is tightened with an electric screwdriver (not shown) from the outside of the first side plate 33 (left side as viewed in FIG. 3). The channel steel 30 is fixed to the upper portions of the plurality of first support portions 10.

  Further, the grooved steel 40 is disposed on the upper ends of the plurality of swash plates 24 on the support unit 20 side, and the nut 17 is tightened with an electric screwdriver (not shown) through the bolt 16 from the side, so that the plurality of the grooved steel 40 is provided. It fixes to the upper part of the 2nd support part 20.

  Next, on the inclined first upper plate 32 of the grooved steel 30 on the support portion 10 side and the inclined second upper plate 42 of the grooved steel 40 on the support portion 20 side, a plurality of Z-shaped steels are provided. 50 and 60 are placed in parallel. And from the top through the shaft of the bolt 71 from below into the holes 54 and 64 provided at the corresponding positions of the bottom plates 51 and 61 of each Z-shaped steel 50 and 60 and the top plates 32 and 42 of each channel steel 30 and 40 The nut 74 is fastened and fixed with an electric screwdriver 95.

  The photovoltaic power generation panel 60 is placed on the upper plates 52, 62 of the plurality of Z-shaped steels 50, 60, the shaft of the bolt 81 is passed through the hole 91 of the photovoltaic power generation panel 60, and the shaft is projected downward. Is passed through the holes 55 and 65 of the upper plates 52 and 62, and the nut 84 is tightened from the lower side of the upper plates 52 and 62 to the shaft protruding below the upper plates 52 and 62 with the electric screwdriver 96. 60 is fixed to the Z-shaped steels 50 and 60.

(effect)
As described above, according to the solar power generation apparatus of this embodiment, the cross-shaped cross-sections of the steel bars 30 and 40 are used as the horizontal beams of the gantry 1, and the Z-shaped steels 50 and 60 are used as the inclined beams disposed thereon. By using the following effects can be obtained.

  By adopting the channel steels 30 and 40 having the upper plates 32 and 42 inclined by 10 °, the Z-shaped steels 50 and 60 can be directly fixed to the channel steels 30 and 40. Metal fittings such as angles are no longer required, reducing material costs. In addition, there is no cost increase by changing the groove-shaped steel used conventionally to the Z-shaped steels 50 and 60.

  Further, by adopting the Z-shaped steels 50 and 60 as the inclined beams, the operator enters the inside of the frame of the gantry 1 with the photovoltaic power generation panel 90 placed on the gantry 1, as shown in FIG. When the nut 84 is tightened to the bolt shaft 81a, the electric screwdriver 96 is moved directly above without avoiding the lower plate 51, so that the tightening operation can be performed smoothly. Workability has been greatly improved compared to steel.

(Comparison of specific construction examples)
For example, taking a 15 MW class mega solar power plant as an example, 940 bases 1 (array devices) and 62,040 solar power panels 90 spread on these array devices are required and used for assembling the bases 1. The sum of the number of bolts used and the number of bolts used for fixing the photovoltaic power generation panel 90 to the gantry 1 is 62040 × 4 × 22 × 2 = 289520.

  As a result of comparing the fastening work of 289520 bolts with the conventional invention, the assembly work of the conventional gantry 1 was carried out by 8 workers per day in the assembling work of the conventional gantry 1. It was possible to construct 10 units a day with 6 people, improving the work man-hour by 25%.

  Moreover, in the conventional panel installation work, 320 workers per day were constructed by four workers, but in the present invention, 400 workers per day can be constructed by four workers, resulting in a 25% improvement in work man-hours. It was done.

  That is, according to the present invention, the work man-hours required for the installation work of the photovoltaic power generation panel 90 can be greatly reduced.

  Although the embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. The embodiments and modifications thereof described herein are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

1 ... mount,
DESCRIPTION OF SYMBOLS 10, 20 ... Support part 11, 21 ... Steel pipe pile 12, 22 ... Support plate 13, 23 ... L-shaped steel 14, 24 ... Diagonal material 15, 25 ... Hot-blow material 16, 71, 81 ... Bolt 17, 74, 84 ... Nut 30, 40 ... Channel steel 31, 41 ... Lower plate 32, 42 ... Upper plate 33, 43 ... Side plate 50, 60 ... Z-shaped steel 51, 61 ... Lower plate 52, 62 ... Upper plate 53, 63 ... Side plate 54 55, 65, 91 ... Hole 75, 85 ... Spring washer 76, 86 ... Flat washer 81a ... Bolt shaft 90 ... Photovoltaic panel 92 ... Groove (step)
95, 96 ... Electric screwdriver

Claims (4)

A plurality of first support portions arranged in a first row;
A plurality of second support portions that form a second row parallel to the first row and are arranged higher than the plurality of first support portions;
A first side plate fixed on the plurality of first support portions and a first side plate connected to one side of the first side plate and corresponding to a height difference between the first and second support portions. A first upper plate having an inclination of
A first channel steel having a first lower plate connected to one side of the first side plate opposite to the other side;
A second side plate fixed on the plurality of second support portions; a second upper plate connected to one side of the second side plate and having a second slope corresponding to the first slope; A second channel steel having a second lower plate connected to the other side opposite to the one side of the second side plate;
A third lower plate bolted to the first and second upper plates, a third upper plate provided with a first hole for fixing the panel , the third lower plate, and the third lower plate A plurality of Z-shaped steels each having a third side plate for connecting the upper plate and arranged in parallel;
An edge portion having a groove portion formed in the lateral direction and a second hole provided at a position of the groove portion corresponding to the first hole of the third upper plate, the bolt shaft being directed downward A solar power generation device comprising: a solar power generation panel that is fixed by tightening a nut from below the third upper plate through the second hole and the first hole .   The photovoltaic power generation apparatus according to claim 1, wherein the plurality of Z-shaped steels are arranged to face each other in a direction in which the Z-shaped steels face each other. Before SL first inclined and pre Symbol photovoltaic device according to claim 1, characterized in that the angular range of 5 ° or more than 30 ° of the second inclined. Disposing a plurality of first support portions in a first row;
Arranging a plurality of second support portions in a second row in parallel with the first row and higher than the plurality of first support portions;
Placing the first channel steel on the plurality of first support portions and fastening the bolts;
Placing the second channel steel on the plurality of second support portions and fastening the bolts;
A plurality of Z-shaped steels are placed in parallel and placed on the inclined first upper plate of the first channel steel and the inclined second upper plate of the second channel steel, Fixing a third lower plate of each Z-shaped steel and a first upper plate of the first grooved steel with a nut from above through bolts from below into holes provided respectively;
The photovoltaic power generation panel is placed on the third upper plate of the plurality of Z-shaped steels, and a bolt with a shaft directed downward is passed through the hole in the photovoltaic power generation panel and passed through the hole in the third upper plate. And a step of fixing with a nut.

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