KR102364660B1 - Buoyance body and Floating Structure For Floated Solar Energy Generating Structure - Google Patents

Abstract

The present invention, a unit buoyancy body for installing a water offshore solar module for mounting one or a plurality of solar modules as a unit in a water offshore solar system completed by a plurality of photovoltaic modules, and such a buoyancy body is preferable It is related to the buoyancy structure of a water-offshore solar system that has been applied to
A unit buoyancy body for installation of a water offshore solar module according to the present invention is a buoyancy body for mounting one or a plurality of solar modules as a unit in a water offshore solar system completed by a plurality of photovoltaic modules, buoyancy divers kept submerged in the water with It is formed vertically above the diver with a longitudinal cross-section smaller than that of the diver, and is a column-type floating module holder that is maintained in a state protruding above the water surface by buoyancy. and a second pillar on which the other side of the solar module is mounted, and the first pillar is provided at a lower height than the second pillar, so that the first and second pillars are maintained to protrude above the water surface by buoyancy so that the solar module is inclined It is characterized in that it is mounted.

Description

Buoyance body and Floating Structure For Floated Solar Energy Generating Structure

The present invention, a unit buoyancy body for installing a water offshore solar module for mounting one or a plurality of solar modules as a unit in a water offshore solar system completed by a plurality of photovoltaic modules, and this buoyancy body is preferable It is related to the buoyancy structure of a water-offshore solar system that has been applied to

A solar system is a power generation method that uses light energy from the sun to produce electricity. When light energy (photons) is irradiated to the solar cell, electrons flow through the cell to produce electricity, thereby generating solar power. Depending on how many solar cells are connected, a photovoltaic system can generate from a small-scale power generation for a portable calculator to a large-scale power generation capable of supplying electricity to thousands of households. A number of solar cells are connected to make a solar panel (solar module), and by connecting several of these solar modules again, a solar system of a certain size is built.

A photovoltaic system requires an installation site of a certain area that can receive sunlight. However, when a solar system is installed on the ground, such as on the roof of an existing building or in a large outdoor parking lot, it is not easy to secure the installation site, and the heat generated in the process of generating electricity by receiving solar light is caused by the solar panel. There is a problem that the solar panel breaks down as it is delivered to the site where it is installed. As such disadvantages were pointed out, a water offshore solar system installed on the water surface of rivers, lakes, reservoirs, dams, etc. or at the sea level of the sea has been proposed.

The water offshore solar system has the advantage of reducing the cost of the site according to the utilization of the idle water surface and also reducing the problem of failure of the solar panel due to its excellent cooling effect. An offshore solar system is a structure in which a solar panel is installed on a buoyant structure above the water surface. The buoyancy structure generally consists of a structure in which the unit buoyancy bodies are connected to each other by a connection joint on a plurality of unit buoyancy bodies arranged at regular intervals, and the solar module is mounted on a module holder provided separately on the buoyancy structure. The solar module is usually installed at an angle to improve light receiving efficiency, and for this purpose, the module holder is provided at an angle. Recently, a buoyancy structure in which a module mounting part is integrated with a buoyancy body has been proposed, and there are representatively disclosed Patent Publication Nos. 10-2015-0018341 and 10-2016-0108974. These published patents disclose a unit buoyancy body in which the module mounting portion is formed to protrude in the form of a protrusion, and in this unit buoyancy body, the module mounting portions on both sides are formed to have different heights, so that the solar module is mounted at an angle.

Meanwhile, the unit buoyancy body used in the conventional buoyancy structure is made of various materials in various three-dimensional shapes, but it is a common feature to have a structure floating on the water surface by buoyancy from the bottom. Patent Publication No. 10-2015-0018341 No. 10-2016-0108974, etc. are also the same. In such a conventional unit buoyancy body, the entire bottom surface of the unit buoyancy body floating on the water surface is directly subjected to an external force such as freezing, running water (流水, current) or waves, floating objects, etc. occurring on the water surface. Accordingly, when freezing occurs in winter or when the current increases due to typhoons, waves, and floating objects increase, the external force acting on the unit buoyancy body also increases, and the unit buoyancy body is easily shaken and damaged. If this phenomenon continues, the stability of the buoyancy structure may decrease, which may lead to deterioration of the durability of the entire solar system. In addition, the size of the unit buoyancy body is large, and since a plurality of unit buoyancy bodies are installed in floating solar power, the water circulation between the unit buoyancy bodies is not performed properly, so it is easy to cause water pollution.

KR 10-2015-0018341 A KR 10-2016-0108974 A

The present invention was developed to improve the disadvantages of the conventional buoyancy structure in the water offshore solar system, and by minimizing the contact area with the water surface, it flexibly responds to external forces caused by freezing, running water, waves, and floating objects occurring on the water surface while effectively reducing dispersion There is a technical problem in providing a new type of unit buoyancy body that can be made, and a buoyancy structure of a water offshore solar system to which such a unit buoyancy body is preferably applied.

In order to solve the above technical problem, the present invention is a buoyancy body for mounting one or a plurality of solar modules as a unit in a water offshore solar system completed by a plurality of solar modules, divers who remain submerged in; It is formed vertically above the diver with a longitudinal cross-section smaller than that of the diver, and is a column-type floating module holder that is maintained in a state protruding above the water surface by buoyancy. and a second pillar on which the other side of the solar module is mounted, and the first pillar is provided at a lower height than the second pillar, so that the first and second pillars are maintained to protrude above the water surface by buoyancy so that the solar module is inclined. It provides a unit buoyancy body for installing a water offshore solar module, characterized in that it is mounted.

In addition, the present invention is a water offshore solar system using the above unit buoyancy body, a plurality of water offshore solar module installation unit buoyancy body is arranged in a grid; a solar module installed to be mounted on the first and second pillars of the module holder in the unit buoyancy body 10; It provides a buoyancy structure of the water offshore solar system, characterized in that it comprises; a connecting joint for connecting and constraining the unit buoyancy body 10 to each other.

According to the present invention, the following effects can be expected.

First, the unit buoyancy body of the present invention is divided into a floating module holder of a small longitudinal cross-sectional area floating on the water and a diver submerged in water, thereby reducing the area of the floating module holder in contact with the water surface while naturally flowing water between the floating module holder It becomes a structure in which a furnace is formed, and it is possible to effectively disperse and reduce various external forces (external forces caused by icing, running water, waves, floating objects, etc.) . Therefore, the buoyancy structure completed using the unit buoyancy body of the present invention can improve structural stability and durability while flexibly responding to external forces. In addition, it is possible to smoothly induce the circulation of water through the flow channel formed between the floating module holders, thereby preventing water pollution.

Second, since the unit buoyancy body of the present invention has a small portion exposed to the outside of water, when it is made of a polymer material such as PE, it is possible to reduce the problem of durability deterioration due to sunlight, and when it is made of a metal material, it is possible to reduce the occurrence of corrosion .

1 is a schematic diagram of a unit buoyancy body for solar module installation according to the present invention.
2a to 2c are test examples showing the evaluation of the effect of running water according to the structural characteristics of the buoyancy body.
3 and 4 are various embodiments of the solar module installation unit buoyancy body according to the present invention.
5A to 5C are schematic views of a completed water-based solar system by applying a unit buoyancy body according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

1 is a schematic diagram of a unit buoyancy body for solar module installation according to the present invention. The unit buoyancy body 10 for solar module installation according to the present invention supports one or a plurality of photovoltaic modules 20 as a unit in a water offshore solar system completed by a plurality of photovoltaic modules 20 . As a buoyancy body for buoyancy, the part having buoyancy is divided into a submersible number 11 and module mounting parts 12a, 12b, and the module mounting parts 12a and 12b on which the solar module is mounted have different heights of buoyancy. It is characterized in that it is provided as a column-shaped member with

The diver 11 has its own buoyancy and is provided to remain submerged in the water by its own buoyancy, and is completely submerged in the water in the present invention, unlike the conventional buoyancy body floating on the water surface. In the present invention, the diver 11 is completely submerged in water without a portion exposed outside the water, so there is a problem of durability degradation due to sunlight and outside air (deterioration due to sunlight in the case of polymer materials such as PE, corrosion by outside air in the case of metal materials, etc.) none. As long as the diver 11 can be maintained in a submerged state in the water by buoyancy, it can be manufactured in various three-dimensional shapes and in various materials such as metal, plastic, cement, etc. It is preferable to provide it in an appropriate size, material, and shape in consideration of this. The diver 11 may be in the form of an empty case, as well as a form in which a buoyancy material (PE foam, etc.) is filled inside the case to prevent sinking into the water when the case is damaged. If the diver 11 is in the case of an empty case, the buoyancy may be adjusted by controlling the amount of water injected therein. will be. To this end, a water pipe 15 may be connected to the diver 11 , and the buoyancy is adjusted as water is injected or discharged through the water pipe 15 .

The module mounting portions 12a and 12b are portions on which the solar module 20 is mounted, and are provided in a columnar and floating manner. The module mounting units (12a, 12b) are provided in a columnar shape having a smaller longitudinal cross-section than the diver (11), are vertically connected in the diver (11), and have a structure maintained in a state protruding above the water surface by buoyancy. Unlike the conventional buoyancy body in which the mounting part on which the photovoltaic module is mounted is completely exposed outside the water surface, the buoyancy body 10 of the present invention is in a state of protruding about half above the water surface while being half submerged in water. Thereby, while reducing the area in contact with the water surface in the buoyancy body 10, it is possible to naturally form a running water channel (water path) around the mounting parts 12a and 12b, and thus the running water channel formed between the mounting parts 12a and 12b is reduced. Through this, it is possible to effectively disperse and reduce various external forces (external forces caused by icing, running water, waves, floating objects, etc.), and it is also possible to suppress water pollution by inducing smooth circulation of water. The module mounting portions 12a and 12b can be made of various three-dimensional shapes and various materials such as metal, plastic, and cement as long as they can be maintained floating on the water while submerged in the water by their own buoyancy.

In particular, the module mounting portions 12a and 12b are divided into a first pillar 12a on which one side of the solar module 20 is mounted and a second pillar 12b on which the other side of the solar module 20 is mounted, and the first The pillar (12a) is provided at a lower height than the second pillar (12b), whereby the solar module 20 is mounted at an angle while the first and second pillars (12a, 12b) are maintained to protrude above the water surface by buoyancy. make it The first pillar (12a) and the second pillar (12b) are provided with a structure and a cross-section in which the solar module 20 can be stably mounted, and the height thereof corresponds to the installation angle in consideration of the light receiving efficiency of the solar module 20 prepare It is more preferable that the module mounting portions (12a, 12b) are provided with a pair of first pillars (12a) and a pair of second pillars (12b) corresponding to each photovoltaic module (20), which is a module mounting This is to ensure that each photovoltaic module 20 is stably mounted in a four-point support form with the portions 12a and 12b, while effectively securing a flow path formed between the module mounting portions 12a and 12b.

The module mounting portions 12a and 12b may be provided as a separate type of structure distinct from the diver 11, as well as an integral type of a structure extending from the diver 11, and like the diver 11, metal, plastic, cement, etc. It can be manufactured in a variety of materials and in a variety of shapes. In addition, the module mounting parts (12a, 12b) may be provided in the form of an empty case, the inside of the case is filled with a buoyancy material (PE foam, etc.), like the diver 11, and when provided in the form of an empty case The water pipe 15 is connected and installed so that the buoyancy can be adjusted through the injection and discharge of water. By (15), it is possible to collectively control the buoyancy of the columnar floating module mounting portions 12a and 12b and the diver 11 .

2a to 2c are test examples showing the evaluation of the effect of running water (water current) according to the structural characteristics of the buoyancy body. As shown in Fig. 2a, the existing general unit buoyancy body (hexahedral form) and the unit buoyancy body according to the present invention (diver + column type floating module holder) were respectively manufactured as test bodies using the same material (Styrofoam) as shown in Fig. 2b, and the same as in Fig. 2b It was evaluated by confirming the mobility in the test conditions. At this time, the unit buoyancy body specimens were manufactured in the same volume to maintain the same buoyancy, and the unit buoyancy body specimens were positioned adjacent to each other to maintain the same test conditions, while the same mass weight was connected to each specimen to maintain the same diving conditions. The mobility evaluation result is shown as shown in Fig. 2c, and as can be seen, the movement distance of the existing unit buoyancy body is confirmed to be quite long, so it can be seen that there is a lot of movement while directly resisting running water. From these results, it can be said that the unit buoyancy body structure according to the present invention disperses and reduces the action of external force on running water, etc., when compared to the existing unit buoyancy body.

3 and 4 show various embodiments of the unit buoyancy body 10 for solar module installation according to the present invention. 3 is an embodiment of the unit buoyancy body 10 of the basic configuration, showing the divided according to the number of mounting solar modules (20). Figure 3 (a) is a unit buoyancy body 10 for mounting one solar module 20, Figure 3 (b) is a unit buoyancy for mounting two solar modules 20 in parallel It becomes the sieve 10, and Fig. 3 (c) is a unit buoyancy body 10 to symmetrically mount the two solar modules 20 in series, and Fig. 3 (d) shows four solar modules It becomes a unit buoyancy body 10 for mounting symmetrically in series while mounting 20 in parallel.

Figure 4 is an embodiment in which an additional configuration is further provided in the unit buoyancy body 10 of Figure 3 (a). 4(a) shows an example in which a reinforcing material 13 is further provided, and the reinforcing material 13 is provided to connect the first and second pillars 12a and 12b of the module mounting portion to each other and reinforced. The reinforcing material 13 may be provided not only horizontally, but also inclined (corresponding to the installation inclination of the solar module), and is provided to be integrally formed on the module mounting parts 12a and 12b as well as the module mounting part 12a , it is also possible to provide separately from 12b). The reinforcing material 13 is provided on the upper ends of the first and second pillars 12a and 12b of the module mounting portion so as to be located outside the water surface, so that there is no influence by waves or the like. The reinforcing material 13 can be connected and fixed through the photovoltaic module 20 positioned above it and appropriate parts (screws, clips, etc.), and in this case, the reinforcing material 13 supports the photovoltaic module 20 It also plays an advantageous role in the action of snow load, etc. 4 (b) is an example in which the management passage holder 14 is further provided, and the management passage holder 14 is configured to mount the management passage, which is a movement passage for workers for maintenance and management of the solar system. When the submersible 11 is formed to extend further to the outside of the first pillar 12a or the second pillar 12b of the module holder, the management passage holder 14 over the extended diver 11 is the module holder 12a, 12b ) is provided in the same columnar floating type. In other words, the management passage holder 14 is formed vertically above the diver 11 extended with a smaller longitudinal section than the extended diver 11 and is provided to be maintained in a state protruding above the water surface by buoyancy, the height of which is the first of the module holder It is provided with the same or lower height as the pillar (12a). In Figure 4 (b), although the management passage holder 14 is provided on the outside of the first pillar (12a), it may be provided outside the second pillar (12b).

5A to 5C are schematic views of a water offshore solar system completed by applying a unit buoyancy body according to the present invention, and is a completed example to which the unit buoyancy body 10 of FIGS. 3 and 4 (b) is applied. The water offshore solar system, a plurality of offshore solar module installation unit buoyancy body 10 is arranged in a grid; a solar module 20 installed to be mounted on the first and second pillars 12a and 12b of the module holder in the unit buoyancy body 10; The unit buoyancy body 10 is configured to include a connection joint 40 for connecting and constraining each other. Here, the solar module 20 can be directly mounted on the first and second pillars 12a and 12b of the module holder, or a separate holder is manufactured and the first and second pillars ( It is also possible to mount it on 12a, 12b). In addition, the connection joint 40 can be applied by appropriately borrowing the connection method of the buoyancy body and the connection joint from the conventional solar system, and the management passage 30 between the unit buoyancy bodies 10 is the unit buoyancy body 10 . It is installed to float above the water surface by buoyancy at a lower height than the first column (12a) of the.

5A is a completed example using the unit buoyancy body 10 of FIG. Since the unit buoyancy body 10 of FIG. 3 is for installing only the solar module 20, the buoyancy body 50 for installation of the management passage is separately installed. The buoyancy body 50 for installation of the management passage is preferably a structure consisting of a diver and a column-type floating management passage holding part like the unit buoyancy body 10, and is connected to the unit buoyancy body 10, etc. while using the connecting joint 40 appropriately. is installed

Figures 5b and 5c is a completed example using the unit buoyancy body 10 of Figure 4 (b). Since the unit buoyancy body 10 of FIG. 4 (b) has a form in which the management passage cradle 14 is integrally provided, the management passage 30 is installed by being mounted on the management passage cradle 14 of the unit buoyancy body. Do it. The connecting joint 40 is a submersible unit 11 between the neighboring unit buoyancy bodies 10, each other, the module mounting parts 12a, 12b, and the module mounting parts 12a, 12b and the management passage holding part 14. It can be properly installed to connect.

In the above, the present invention has been described in detail with reference to specific examples, but since the examples are only for illustrating the present invention, substituted, added and modified embodiments are also provided below without departing from the technical spirit of the present invention. It will be said that it falls within the protection scope of the present invention as defined by the claims appended hereto.

10: unit buoyancy body
11: Diver
12a, 12b: module holder
12a: the first pillar
12b: the second pillar
13: stiffener
14: management passage mounting part
15: water pipe
20: solar module
30: management passage
40: connecting joint
50: buoyancy body for installation of management passage

Claims (7)

As a buoyancy body 10 for mounting one or a plurality of photovoltaic modules 20 as a unit in a water offshore photovoltaic system completed by a plurality of photovoltaic modules,
A diver (11) that is maintained in a submerged state in the water by buoyancy;
It is vertically formed above the diver 11 with a smaller longitudinal cross-section than the diver 11, and is configured to include,
The module mounting portions 12a and 12b are divided into a first pillar 12a on which one side of the solar module 20 is mounted and a second pillar 12b on which the other side of the solar module 20 is mounted. The first pillar (12a) is provided with a lower height than the second pillar (12b), so that the first and second pillars (12a, 12b) are maintained to protrude above the water surface by buoyancy, and the solar module 20 is mounted at an angle A unit buoyancy body for installing a water offshore solar module, characterized in that it becomes. In claim 1,
The module mounting portions (12a, 12b) are provided with a pair of first pillars (12a) and a pair of second pillars (12b) corresponding to each solar module 20, each solar module (20) A unit buoyancy body for installing a water offshore solar module, characterized in that it is mounted in a four-point support form. In claim 2,
The module mounting portion (12a, 12b), a pair of first pillars (12a) and a pair of second pillars (12b) are provided in succession in parallel so that a plurality of solar modules are mounted in parallel, or A pair of first pillars (12a) and a pair of second pillars (12b) are provided symmetrically in series while being continuous in parallel, so that a plurality of solar modules are mounted in a symmetrical structure in series and parallel. Unit buoyancy for solar module installation. According to any one of claims 1 to 3,
The submersible 11 is further extended to the outside of the first pillar 12a or the second pillar 12b of the module holder,
It is formed vertically above the extended diver 11 with a smaller longitudinal cross-section than the extended diver 11 and is maintained in a state protruding above the water surface by buoyancy, and is provided at the same or lower height as the first pillar 12a of the module holder Buoyancy unit for installation of a water offshore solar module, characterized in that it further comprises; According to any one of claims 1 to 3,
The submersible 11 and the module holder (12a, 12b), a unit buoyancy body for installing a water offshore solar module, characterized in that the buoyancy is controlled by injecting by controlling the amount of water inside the case made of an empty space inside . A water offshore solar system using a unit buoyancy body for installing a water offshore solar module according to any one of claims 1 to 3,
Unit buoyancy body 10 for installing a plurality of offshore solar modules arranged in a grid;
a solar module 20 installed to be mounted on the first and second pillars 12a and 12b of the module holder in the unit buoyancy body 10;
The unit buoyancy body 10 is configured to include a connection joint 40 for connecting and constraining each other,
The connecting joint 40 connects the diver 11 between the neighboring unit buoyancy bodies 10, or connects the module mounting parts 12a, 12b between the neighboring unit buoyancy bodies,
Between the unit buoyancy body 10, the buoyancy structure of the water offshore solar system, characterized in that the management passage 30 is floated above the water surface by buoyancy at a height lower than the first pillar 12a of the module mounting part. . A water offshore solar system using the unit buoyancy for installing a water offshore solar module according to claim 4,
Unit buoyancy body 10 for installing a plurality of offshore solar modules arranged in a grid;
a solar module 20 installed to be mounted on the first and second pillars 12a and 12b of the mounting portion in the unit buoyancy body 10;
The unit buoyancy body 10 is configured to include a connection joint 40 for connecting and constraining each other,
The connecting joint 40 is connected to the diver 11 between the adjacent unit buoyancy bodies 10, or the module mounting parts 12a, 12b between the neighboring unit buoyancy bodies 10, or adjacent to each other. The unit buoyancy body 10 connects the module holder 12a, 12b and the management passage holder 14 between each other,
The buoyancy structure of the water offshore solar system, characterized in that the unit buoyancy body (10) is installed so that the management passage (30) is mounted on the management passage holder (14).

Images