JP2012023981A - Agricultural greenhouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an agricultural greenhouse which includes a solar panel for photovoltaic generation, and can give a sufficient amount of insolation to the inside of the greenhouse.SOLUTION: The agricultural greenhouse includes: a plurality of columns 11 erected in a frontage direction X and depth direction Y, respectively; and a plurality of projecting pipes 19 projecting outward from a side surface S, and arranged in parallel in the depth direction Y. The projecting pipes 19 install the solar panel P so that the solar panel has a predetermined angle with respect to a solar light incident plane.

Description

  The present invention relates to an agricultural greenhouse provided with a solar panel for photovoltaic power generation.

  In May 2010, the House of Environment Committee passed the Global Warming Countermeasures Law, which clearly stated the goal of reducing greenhouse gas emissions by 25% by 2020 compared to 1990 levels. Furthermore, according to this law, the supply amount of renewable energy such as solar power generation will be raised to 10% of the total supply amount. And as one of the basic measures for that purpose, the creation of a fixed-price purchase system for electric power companies to purchase renewable energy at a fixed price is stated. Therefore, the expansion of photovoltaic power generation with the lowest CO2 emission among renewable energies is an urgent policy.

  On the other hand, in general, an agricultural greenhouse has a relatively large installation area and is installed in a place with good sunshine conditions. Considering this point, it is suitable as a place where a solar panel is installed. As an agricultural greenhouse provided with such a solar panel, for example, an agricultural greenhouse described in Utility Model Registration No. 3152366 (Patent Document 1) has been proposed.

  The agricultural greenhouse has a side wall and a single-flow gradient roof provided on the upper side of the side wall, and a framework (for example, a column) and a panel constituting the side wall and the gradient roof are made of fiber reinforced plastic (FRP). A solar panel is laid on the sloped roof, and the generated electricity is exclusively used for self-use.

Utility Model Registration No. 3152366 First Page FIG.

  However, in the agricultural greenhouse, the solar panel blocks sunlight and cannot provide a sufficient amount of solar radiation inside the greenhouse. In general, in the greenhouse for agriculture, the introduction of sunlight is a very important factor for the photosynthesis of cultivated crops. This is one of the most important issues. Therefore, it is practically impossible to install a solar panel on a sloped roof as in the agricultural greenhouse, in view of securing the amount of solar radiation in relation to cultivated crops, and lacks feasibility.

  On the other hand, some conventional greenhouses for agriculture have a protruding portion that protrudes further outward than the side surface on the side surface of the greenhouse. The overhanging portion is formed in the side wall of the greenhouse in the depth direction, from the underside of the eaves, outwardly from the side column, overhanging the overhanging pipe in a substantially arc shape, and a sheet on the overhanging pipe. A cover is formed between the side of the greenhouse and the overhanging pipe. The overhanging part can be installed outside the side of the greenhouse, for example, when installing a curtain material for heat insulation and shading on the side of the agricultural greenhouse, rather than installing inside the side of the greenhouse, The space inside the greenhouse can be used efficiently. Similarly, when a hot air heater is provided in the greenhouse, the space inside the greenhouse can be used efficiently by arranging the air duct in the projecting portion. In addition, it acts as a wind evasion hitting the side of the greenhouse. Therefore, the overhanging portion can function as a buffer zone for external forces such as wind power, and can be used as a location for installing ancillary facilities in a greenhouse and as a cultivation place for cultivated crops as necessary.

  The present invention has been made in view of such circumstances, and is an agricultural greenhouse provided with a solar panel for photovoltaic power generation, and can provide a sufficient amount of solar radiation inside the greenhouse. The purpose is to provide.

  The agricultural greenhouse according to claim 1 is provided with a plurality of pillars standing respectively in the frontage direction and the depth direction, and projecting outward from the side surface, and juxtaposed in the depth direction. A plurality of overhanging pipes, wherein the overhanging pipes have a solar panel installed at a predetermined angle with respect to the sunlight incident surface.

  In the agricultural greenhouse according to claim 1, since the solar panel is installed at a predetermined angle with respect to the sunlight incident surface on the projecting pipe projecting outward from the side surface, The light panel has almost no influence on the cultivated crops due to the shadows inserted into the agricultural greenhouse, and a solar panel can be installed even in an agricultural greenhouse that requires solar radiation.

  The greenhouse for agriculture according to claim 2 is provided with a plurality of pillars that are erected in the frontage direction and in the depth direction, respectively, and projecting outward from the wife surface, and in parallel in the depth direction. And a plurality of overhang pipes, wherein the overhang pipe is provided with a solar panel installed at a predetermined angle with respect to the sunlight incident surface.

  In the agricultural greenhouse according to claim 2, since a solar panel is installed at a predetermined angle with respect to the sunlight incident surface on the projecting pipe projecting outward from the wife surface, The solar panel has almost no influence on the cultivated crop due to the shadow inserted into the agricultural greenhouse, and the solar panel can be installed even in the agricultural greenhouse that requires solar radiation.

  The agricultural greenhouse according to claim 3 is the agricultural greenhouse according to claim 1 or 2, wherein the overhanging pipe extends in a curved shape outward from an upper portion of a support column arranged in parallel to the side surface. The solar panel has a predetermined angle with respect to the solar light incident surface by providing the curved part to be taken out and installing the solar panel on the curved part.

  In the agricultural greenhouse according to claim 3, in addition to the agricultural greenhouse according to claim 1 or 2, the curved portion of the overhanging pipe that protrudes outward from the side surface or the wife surface of the agricultural greenhouse. Since the solar panels are installed, the shadows inserted into the greenhouse by the solar panels gather between the side or wife surface and the overhanging pipe, and the cultivated crops by the shadows inserted into the agricultural greenhouse by the solar panels Solar panels can be installed even in agricultural greenhouses that require solar radiation.

  The agricultural greenhouse according to claim 4 is a shadow length to be inserted into the agricultural greenhouse when the solar panel receives sunlight in the agricultural greenhouse according to any one of claims 1 to 3. However, the solar panel is installed on the curved portion of the overhanging pipe so that the height range of the solar panel is within 2 meters at the time of the south solstice of the winter solstice in the installation place of the agricultural greenhouse. It is characterized by.

  In the agricultural greenhouse according to claim 4, in addition to the agricultural greenhouse according to any of claims 1 to 3, a shadow length to be inserted into the agricultural greenhouse by a solar panel is the agriculture Since it is within 2 meters at the time of the winter solstice at the place where the greenhouse for greenhouses is installed, it will not affect the cultivated crops due to the shadows inserted inside the greenhouse for agriculture, and agricultural use that requires solar radiation Solar panels can also be installed in the greenhouse.

  According to the greenhouse for agriculture according to claim 1, a plurality of pillars respectively erected in the frontage direction and the depth direction, projecting outward from the side surface, and parallel to the depth direction. A plurality of overhanging pipes, and the overhanging pipe has a solar panel installed at a predetermined angle with respect to the sunlight incident surface, so that the solar panel is inserted into the agricultural greenhouse. The solar panels can be installed even in agricultural greenhouses that require the amount of solar radiation.

  According to the agricultural greenhouse according to claim 2, a plurality of pillars respectively erected in the frontage direction and the depth direction, and projecting outward from the wife surface toward the depth direction. A plurality of projecting pipes arranged side by side, and the projecting pipe has a solar panel installed at a predetermined angle with respect to the sunlight incident surface. The solar panels can be installed even in agricultural greenhouses that require the amount of solar radiation.

  According to the agricultural greenhouse of claim 3, in the agricultural greenhouse of claim 1 or 2, the overhanging pipe is curved outward from the upper part of the support column arranged in parallel to the side surface. Since the solar panel is configured to have a predetermined angle with respect to the solar light incident surface by installing the solar panel on the curved part, the solar panel can The shadow to be inserted inside gathers between the side surface or wife surface and the overhanging pipe, and the solar panel has almost no influence on the cultivated crop due to the shadow inserted into the agricultural greenhouse, and the amount of solar radiation is required Solar panels can also be installed in agricultural greenhouses.

  According to the agricultural greenhouse according to claim 4, in the agricultural greenhouse according to any of claims 1 to 3, when the solar panel receives sunlight, a shadow that is put inside the agricultural greenhouse. The solar panel is installed on the curved portion of the projecting pipe so that its length is within the height range of the solar panel that is within 2 meters during the winter solstice at the place where the agricultural greenhouse is installed. As a result, there is no influence on the cultivated crops due to the shadows inserted into the agricultural greenhouse, and solar panels can be installed even in agricultural greenhouses that require solar radiation.

It is a principal part perspective view of the greenhouse for agriculture concerning this invention. It is a principal part expanded cross-sectional view of the greenhouse for agriculture. It is an upper part enlarged side view of a frame. It is a lower part enlarged side view of a frame. It is a principal part enlarged side view of the greenhouse for agriculture provided with the other frame. It is a top enlarged side view of another frame. It is a lower part enlarged side view of another frame. It is the schematic of the system of the photovoltaic power generation using the agricultural greenhouse by this invention.

  The best mode for carrying out the present invention will be specifically described below with reference to the drawings.

  FIG. 1 is a perspective view of a main part of an agricultural greenhouse according to the present invention, and FIG. 2 is an enlarged cross-sectional view of the main part of the agricultural greenhouse.

  1 and 2, reference numeral 10 denotes a continuous-building agricultural greenhouse connected in the frontage direction X, and reference numeral 11 denotes a support column. A plurality of the columns 11 are erected in the frontage direction X and the depth direction Y, respectively, and include a wife surface column 11a on the wife surface T, a side column 11b on the side surface S, and a trough column (not shown). A truss beam 12 is installed in the front direction X in the upper part of the side pillars 11b, and a long arch receiving member 13 is installed in the depth direction perpendicular thereto. A large number of arc-shaped arch pipes 14 are juxtaposed on the arch receiving member 13 in the depth direction Y. The arch pipe 14 is connected to a cylindrical arch pipe bent in a substantially square shape at the zenith. The tool 15 is connected to the arch pipe 14 on the reverse slope in the abutting state. An elongate haze material 16 is disposed on the lower surface of the arch pipe 14 at right angles to the arch pipe 14, and the haze material 16 is attached to the arch pipe 14 by a binding member (not shown). It is fixed to the lower surface of the. Above the haze material 16, a skylight support material 17 is installed in parallel with the haze material 16 and screwed to the arch pipe 14.

  The one arch pipe 14 is provided with an openable / closable skylight 20. The skylight 20 is constructed by laying a plurality of vertical beams between a long skylight upper frame member 20a and a skylight lower frame member 20b, and at the end of the skylight upper frame member 20a. A hinge portion (not shown) is formed, and is rotatably held at the upper portion of the arch pipe connector 15. On the other hand, an insect screen receiving portion 20c is formed at an end of the skylight lower frame member 20b, and an insect screen 21 is stretched so as to surround the opening of the skylight 20.

  The skylight 20 is configured to be openable and closable by an opening / closing device 22 provided on the truss beam 12 and including an electric motor (not shown), a pinion (not shown), and a rack (not shown). Then, the horizontal movement of the rack on the truss beam 12 in the frontage direction causes the drive arm 23 that meshes with the rack and is rotatably attached upward to move up and down while swinging, Thereby, the other side edge of the skylight 20 attached to the tip of the drive arm 23 is moved up and down to open and close the skylight 20. 1 to 3 are schematic views of the state in which the skylight 20 is opened. In FIGS. 2 and 3, broken lines indicate the state in which the skylight is closed.

  In FIGS. 1 and 2, reference numeral 19 denotes an overhang pipe, which is curved from below to the outer side of the bridging member 18 fixed to the upper part of the arch receiving member 13 installed on the upper end of the side column 11b. The lower end of the bulge is buried in the underground GL and fixed.

  The projecting pipe 19 is constructed by laying a plurality of vertical bars 31c between a long upper frame body 31a and a long lower frame body 31b in the depth direction. A solar panel fixed to the frame 31 is installed.

  FIG. 3 is an enlarged side view of the upper part of the frame body 31, and FIG. 4 is an enlarged side view of the lower part of the frame body 31. In order to support the frame 31 in the depth direction Y, horizontal rails 19 a and 19 c are installed on the overhanging pipe 19. A hinge portion 31d is formed at the end of the upper frame 31a, and is rotatably held by a hinge receiving portion 19b formed downward at the tip of the horizontal rail 19a.

  The lower frame member 31b extends a plate-like extension member 31e downward, and the extension member 31e is fastened and fixed to the horizontal rail 19c by bolts B and nuts N.

  5 is an enlarged side view of the main part of an agricultural greenhouse equipped with another frame, FIG. 6 is an enlarged side view of the upper part of the other frame, and FIG. 7 is an enlarged lower side view of the other frame. is there. In the frame 31, the vertical rail 31c is formed in a curved shape along the curve of the overhanging pipe 19. However, when the solar panel P is not flexible, FIGS. As shown in FIG. 7, if the horizontal rail 19 f and the horizontal rail 19 h are taken out toward the front surface of the solar panel P and installed so that the solar panel P does not touch the curved portion of the overhanging pipe 19. good. In this case, the angle of the solar panel P can be adjusted by adjusting the take-out length of the horizontal rail 19f and / or the horizontal rail 19h.

  As shown in FIGS. 2 and 5, the overhanging pipe 19 has an upper end fixed at a position substantially equal to the height of the eaves (the height of the support 11), and a lower end from the side surface S of the agricultural greenhouse. The distance A between the side surface and the lower end of the overhanging pipe 19 is approximately 1 m to 2 m. On the other hand, the frame 31 is provided at a position substantially in the lower half of the overhanging pipe so that the shade length of the solar panel formed by the seasonal change or the time change of the day falls within the distance A. In addition, the curved portion is arranged so that the entrance of the shadow (distance C) into the greenhouse is at least about 2 m from the side surface. This is because there is almost no influence on the cultivated crop when a shadow of about 2 m is inserted inside the greenhouse. Since the determination of the distance A and the distance C in this case differs depending on the latitude of the place where the agricultural greenhouse 10 is installed, in the middle of the winter solstice at the installation place (indicated as 1200 in the figure), As described above, the distance A, the distance C, and the height position of the frame body 31 are determined within the range where the shadow of the solar panel is inserted, and the winter solstice at the installation location is described as 1200 (in the drawing, 1200). ), The angle position of the solar panel P may be set to an angle orthogonal to the solar radiation angle in the range where the shadow of the solar panel is inserted as described above.

  In addition, in the said embodiment, although the said extension pipe 19 and the said frame 31 were provided in the side surface S of the said greenhouse 10 for agriculture, you may provide in the wife surface T. FIG.

  FIG. 8 is a schematic view of a photovoltaic power generation system using an agricultural greenhouse according to the present invention.

  In FIG. 8, reference numeral 50 denotes a management device. The management device 50 includes a DC / AC converter 51 and a switchboard 52, and includes a linkage device 53 linked to a conventional power transmission system.

  Then, the solar energy collected by the solar panel P is converted into electric energy, and electric power is supplied to the electric power company through the management device 50 via a conventional power transmission system.

  In the agricultural greenhouse 10 configured as described above, the overhang space (distance A) generated by installing the overhang pipe 19 in the agricultural greenhouse 10 where the amount of solar radiation is required. By utilizing it as an effective space (a space where shadows are dropped by the installation of the solar panel P), it is possible to collect sunlight without contradicting it. By selling power to the company, the installation cost and maintenance cost of the agricultural greenhouse 10 are reduced.

  In addition, since the agricultural greenhouse 10 is configured as described above, the frame 31 including the overhanging pipe 19 and the solar panel P can be retrofitted, and can be applied to an existing agricultural greenhouse. Even in agricultural greenhouses that have already been installed, sunlight can be collected without contradiction, which is consistent with national policies.

DESCRIPTION OF SYMBOLS 10 Agricultural greenhouse 11 Column 11a End surface column 11b Side column 12 Truss beam 13 Arch receiving material 14 Arch pipe 15 Arch pipe connector 16 Haze material 17 Skylight support material 18 Fence material 19 Overhang pipe 19a, 19g (upper) side Crosspiece 19b Hinge receiving part 19c, 19h (lower part) horizontal crosspiece

20 Skylight 20a Skylight upper frame material 20b Skylight lower frame material 21 Insect screen 22 (skylight) opening and closing device 23 Drive arm

31 Frame body 31a Upper frame material 31b Lower frame material 31c Vertical beam 31d Hinge part 31e Extension member

50 Management Device 51 DC / AC Converter 52 Switchboard

X Frontage direction Y Depth direction T Wife surface S Side surface Fn Film material covering the greenhouse body F Film material covering the overhanging part P Solar panel A Distance between the side surface and the lower end of the overhanging pipe C Approach distance B Bolt N Nut

Claims (4)

A plurality of struts erected in the frontage direction and the depth direction,
A projecting outward from the side, and a plurality of projecting pipes arranged in parallel in the depth direction,
An agricultural greenhouse characterized in that the projecting pipe is provided with a solar panel as much as possible at a predetermined angle with respect to a sunlight incident surface.
A plurality of struts erected in the frontage direction and the depth direction,
A projecting outward from the wife surface and a plurality of projecting pipes arranged in parallel in the depth direction,
An agricultural greenhouse characterized in that the projecting pipe is provided with a solar panel as much as possible at a predetermined angle with respect to a sunlight incident surface.
The projecting pipe includes a curved portion that projects in a curved shape outward from an upper portion of a support column that is arranged side by side on the side surface, and the solar panel is installed on the curved portion, whereby the sunlight The agricultural greenhouse according to claim 1 or 2, wherein the panel is designed to have a predetermined angle with respect to the sunlight incident surface.
  In the case where the solar panel receives sunlight, the height of the solar panel in which the shadow length to be inserted into the agricultural greenhouse is within 2 meters at the time of the south solstice of the winter solstice at the installation location of the agricultural greenhouse. The agricultural greenhouse according to any one of claims 1 to 3, wherein the solar panel is installed in a curved portion of the overhanging pipe as much as possible.

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