KR102094310B1 - Floating type apparatus for generating photovoltaics - Google Patents

Abstract

According to the present invention, by forming a coupling protrusion on the edge of the solar module and forming a groove interlocked with the coupling protrusion on the lower frame, each solar module rotates 360 ° to absorb sunlight, thereby improving production efficiency and reducing production cost. In addition, it is possible to improve the working environment by installing a non-slip pad on the scaffold to prevent slippage, and by coating a composition containing natural antibacterial substances, it removes the possibility of propagation of harmful bacteria that grow in a humid environment and prevents corrosion, thereby limiting the expiration date. Relatable to a solar power floating device that can be extended,
A solar module including a solar cell and a coupling protrusion formed in an inclined shape on a circular edge, which absorbs sunlight and produces direct current power, and is coupled to and supported by a lower portion of the solar module described above. The lower frame is formed with an inclined groove that engages the engaging projection, and a support that connects the center of the solar rear and the center of the lower frame and can be rotated 360 °, and is installed at the bottom of the lower frame of the solar module. The floating portion supporting the floating part to be floated on the surface of the water, and each floating portion in which the above-mentioned photovoltaic module is installed are connected to each other, and the flexible portion can move flexibly according to the flow of the fluid, and surrounds the outside of the floating portion connected to the above-described connection portion. And installed at the bottom of the above-mentioned floating part and lighting that can check the position and height of the solar power floating device even at night. Value is achieved, including the mooring device to secure to prevent movement under the influence of the flow of wind or fluid.

Description

Solar Power Floating Device {FLOATING TYPE APPARATUS FOR GENERATING PHOTOVOLTAICS}

According to the present invention, by forming a coupling protrusion on the edge of the solar module and forming a groove interlocked with the coupling protrusion on the lower frame, each solar module rotates 360 ° to absorb sunlight while improving production efficiency and reducing production cost. In addition, it is possible to improve the working environment by preventing slipping by installing a non-slip pad on the scaffold, and by coating a composition containing natural antibacterial substances, removes the possibility of propagation of harmful bacteria that grow in a humid environment, prevents corrosion, and prevents the expiration date It relates to a photovoltaic floating device that can be extended.

Solar power is a technology that converts the light energy of the sun to produce electricity. In solar power generation systems, it is advantageous to utilize geographic conditions such as deserts and grasslands, as securing sunshine is a primary condition.

The photovoltaic power generation system using water surface is a method of installing a floating body on an idle surface such as a river, a reservoir, or a pond, so the environmental conditions of the water surface have an advantage that there are no obstacles compared to the ground condition. In addition, when the photovoltaic power generation system is installed on the water surface, the solar panel has a cooling effect due to the natural convection phenomenon occurring on the water surface, thereby increasing power generation efficiency. Terrestrial photovoltaic power generation has the disadvantage that it is necessary to create a site when installing it on land, additional work such as foundation work, etc., and induce deforestation in the process of developing remote areas or forests. On the other hand, sleep photovoltaic power generation can be said to be a very suitable power generation method for Korea with limited land by actively utilizing idle sleep.

In the summer when the water temperature is high, there is a problem that the amount of dissolved oxygen in the water decreases due to the green algae phenomenon and the eutrophication of mass growth of phytoplankton due to stagnant water. The sleep photovoltaic system can block the sunlight from the water surface to solve green algae removal and fish propagation, and it can expect to reduce greenhouse gas and reduce fine dust by replacing old nuclear power plants with eco-friendly energy production. The convergence technology of the surface photovoltaic power generation system that applies renewable energy sources to water resources facilities is a multi-use value-added technology using water resources. It is an area that can develop into a future reservoir demonstration model in which new and renewable energy, IT, and BT technologies are converged, breaking away from the existing limited water resource facility use technology. If this technology is commercialized, it is believed that it will be able to establish itself as a future growth engine in the environment-friendly water resource field.

Recently, a system that can adjust the angle of the solar module by tracking the position of the solar light according to the movement of the sun has been proposed, but there are many necessary parts such as a length adjustment module and a rotation module, which increases production cost and makes maintenance difficult. .

In addition, the photovoltaic floating system is exposed directly to rivers and reservoirs when the worker goes up to the floating part for maintenance, so it can slip due to moisture and cause accidents, and parts due to bacteria growing in a humid environment These are easy to corrode, and there is a problem that the expiration date is shortened.

Republic of Korea Patent Publication No. 2015-1503742

The object of the present invention is to solve the above problems, by forming a coupling protrusion on the rim of the solar module and forming a groove interlocking with the coupling protrusion on the lower frame, each solar module rotates 360 ° to absorb sunlight. Therefore, it is to provide a photovoltaic power generation floating device that can improve production efficiency and reduce production cost.

Another object of the present invention is to provide a photovoltaic floating device capable of improving the working environment by preventing slipping by installing a non-slip pad on the footrest.

Another object of the present invention is to provide a photovoltaic floating device capable of extending the shelf life by preventing corrosion by removing the possibility of propagation of harmful bacteria growing in a humid environment by coating a composition containing a natural antibacterial substance.

The configuration of the present invention as a means for achieving the above object, a solar module including a solar cell and a coupling protrusion formed in an inclined shape on a circular rim, absorbing sunlight and producing direct current power, and the above-described solar light Supported by being coupled to the bottom of the module, the lower frame is formed with an inclined groove engaged with the coupling protrusion of the solar module, and the center of the solar rear panel and the center of the lower frame can be rotated 360 ° It is installed at the bottom of the lower frame of the above-mentioned photovoltaic module, and supports a floating portion to float above the water surface, and each floating portion provided with the photovoltaic module is connected to each other and can move flexibly according to the flow of fluid. The position of the photovoltaic floating device is installed around the outside of the section of the connection part and the floating part connected to the connection part and at night. Is installed on the light and, at the bottom the rich portion to check the height is preferably done by the ground comprises a mooring device for fixing to prevent movement under the influence of the flow of wind or fluid.

In the configuration of the present invention, the floating portion, the upper frame to which the lower frame is bound, a footrest that can be placed by the operator located in front of the upper plate, an anti-skid pad attached to the surface of the footrest, and the upper plate And it is coupled to the lower end of the scaffold and preferably includes a frame connecting the buoyancy body and the buoyancy body including an antibacterial coating layer on the inside and outside.

In the configuration of the present invention, the anti-skid pad described above is based on 100 parts by weight of natural rubber, 23 to 27 parts by weight of p, p'-oxybisbenzenesulfonyl hydrazide, 10 to 15 parts by weight of polylactic acid, and butyl acrylic It is preferable to include 8 to 10 parts by weight of a rate, 5 to 10 parts by weight of a methyl methacrylate, and 1 to 3 parts by weight of an epoxide sided soybean oil, and include protrusions protruding at regular intervals on the surface.

The composition of the present invention, the above-mentioned antibacterial coating layer, based on 100 parts by weight of the elastomer resin, 15 to 20 parts by weight of ethylene vinyl acetate copolymer, 15 to 20 parts by weight of polyurethane, 15 to 8 parts by weight of antibacterial material It is 37㎛ thick, and it is preferable to mix and include at least one of lacquered charcoal powder, chitosan powder, bamboo charcoal powder, and Cudrania extract.

In the configuration of the present invention, the lower frame has a lower frame body in which a hole is formed in the center and an inclined groove corresponding to the coupling protrusion of the solar module is formed, and the central hole of the lower frame body. It is preferable to have a semi-spherical rotating portion rotatable.

In the configuration of the present invention, the above support uses a pole which is vertically coupled to the rear center of the photovoltaic module and is formed with a semi-spherical fastening groove at the rear, and the semi-spherical fastening groove of the pole is of the above-described lower frame. It is desirable if it is designed to be rotated 360 ° by being engaged with a spherical rotating part.

In the configuration of the present invention, the coupling protrusion of the photovoltaic module frame and the groove of the lower frame may be formed in a straight line and a curved line, and a foamed rubber composition may be applied to reduce noise during rotation. Silver Based on 100 parts by weight of natural rubber, 25 parts by weight of solution styrene butadiene rubber, 15 to 17 parts by weight of p, p'-oxybisbenzenesulfonylhydrazide, 7 to 11 parts by weight of methyl methacrylate, flame retardant 3 It is preferable to include ~ 5 parts by weight and 1 to 3 parts by weight of epoxidized soybean oil.

The photovoltaic floating device designed according to the present invention can be applied to a real industry, and each photovoltaic module is 360 ° by forming a coupling protrusion on the edge of the solar module and forming a groove interlocked with the coupling protrusion on the lower frame. As it rotates, it absorbs sunlight, thereby improving production efficiency and reducing production costs. By installing a non-slip pad on the scaffold, it can improve the working environment by preventing slippage, and by coating a composition containing natural antibacterial substances, it becomes humid. By removing the possibility of propagation of harmful bacteria growing in the environment, corrosion can be prevented to extend the expiration date.

1 is a perspective view of a photovoltaic power generation floating device according to an embodiment of the present invention.
2 is a perspective view of a floating portion of a photovoltaic floating device according to an embodiment of the present invention.
3 is a cross-sectional view of a buoyancy body of a photovoltaic floating device according to an embodiment of the present invention.
4 is a perspective view of a lower frame of a photovoltaic floating device according to an embodiment of the present invention.
5 is a cross-sectional view of a fastening portion of a lower frame and a support of a photovoltaic floating device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention and the accompanying drawings will be referred to in order to describe in detail that a person skilled in the art to which the present invention pertains can easily implement the present invention. Other objects, features, and operational advantages, including the objects, actions, and effects of this invention will be more apparent from the description of the preferred embodiment.

For reference, the embodiments disclosed herein are only selected and presented as the most preferred embodiments to help those skilled in the art from among various possible examples, and the technical spirit of the present invention is limited or limited only by the presented embodiments No, it is revealed that various changes and additions are possible within a range not departing from the technical spirit of the present invention, and that other embodiments of the same are possible.

In addition, the expression of terms or words used in the specification and claims of the present application is based on the principle that the inventor can appropriately define the concept of terms in order to explain the invention in the best way. It should not be interpreted as being limited to only ordinary or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical spirit of the present invention. As an example, singular expressions include plural expressions unless the context clearly indicates otherwise.

1 is a perspective view of a photovoltaic power generation floating device according to an embodiment of the present invention.

As shown in Figure 1, the configuration of a photovoltaic floating device according to an embodiment of the present invention includes a solar cell, a coupling protrusion 11 is formed in an inclined shape on a circular rim, absorbs sunlight and absorbs direct current A lower frame in which a solar module 1 for generating power and an inclined groove 212 which is coupled to and supported by the lower end of the solar module and engages with the engaging projection 11 of the solar module are formed. (2), the support center that can rotate 360 ° while connecting the center of the above-mentioned photovoltaic rear and the center of the above-described lower frame, and is installed at the bottom of the lower frame of the above-mentioned photovoltaic module so that it can float above the water surface The floating part 4 that supports, and each floating part 4 in which the solar module is installed are connected to each other and connected flexibly according to the flow of the fluid, and connected by the above-described connection part 5 Surrounding the outside of the section of the float (4) A lighting (6) that can be installed and check the position and height of a photovoltaic floating device even at night, and a mooring device that is installed at the bottom of the floating part (4) and fixed so as not to move under the influence of wind or fluid flow (7).

The above-mentioned photovoltaic module 1 converts the light energy of the sun into electrical energy. In the solar module, modules composed of a plurality of cells are arranged at regular intervals.

The above-mentioned connection part 5 can minimize stress since each floating part can move flexibly according to the movement of the water surface while firmly fixing the engagement with the floating part.

As the above-described lighting 6, lighting such as LEDs and halogen lamps and luminous materials such as europium and prosium may be used.

The mooring device 7 includes a plurality of fixing members, and the fixing members are fixed to the frame 45 of the floating part and limit movement of the photovoltaic floating device due to the flow of fluid.

2 is a perspective view of a floating portion of a photovoltaic floating device according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of a buoyant body of a photovoltaic floating device according to an embodiment of the present invention.

2 to 3, the configuration of the floating portion 4 of the photovoltaic floating device according to an embodiment of the present invention includes a top plate 41 and a top plate 41 to which the above-described lower frame is bound. Located at the front of the footrest 42 that can be treaded by an operator, the anti-skid pads 43 attached to the surface of the footrest 42, and the top plate 41 and the bottom of the footrest 42. It is combined and comprises a buoyancy body 44 including an antibacterial coating layer 441 inside and outside, and a frame 45 connecting the above-described buoyancy body 44.

The anti-skid pad 43 is based on 100 parts by weight of natural rubber, 23 to 27 parts by weight of p, p'-oxybisbenzenesulfonylhydrazide, 10 to 15 parts by weight of polylactic acid, and 8 to butyl acrylate. It comprises 10 parts by weight, 5 to 10 parts by weight of methyl methacrylate, 1 to 3 parts by weight of epoxidized soybean oil, and includes protrusions protruding at regular intervals on the surface.

The anti-skid pad 43 can maximize the friction by wrapping the foot of the operator with a large surface area while gently bending the protruding protrusion to prevent slipping, thereby promoting safety and convenience for the worker.

The antibacterial coating layer 441 is 15 to 37 μm thick, including 25 to 40 parts by weight of ethylene vinyl acetate copolymer, 15 to 20 parts by weight of polyurethane, and 6.5 to 8 parts by weight of antibacterial material, based on 100 parts by weight of elastomer resin. It is made by mixing at least one of lacquered charcoal powder, chitosan powder, bamboo charcoal powder, and Cudrania extract.

At this time, the thickness of the antimicrobial coating layer 441 is not suitable because the breakage was found at a portion at a low temperature (-20 ° C.) of the winter when the thickness exceeds 37 μm. have.

Since the polyurethane added to the antibacterial coating layer 441 has a property of reflecting ultraviolet rays, it can maximize power generation efficiency by amplifying the scattered waves reflected from the water surface.

The mixing ratio of the above-mentioned antimicrobial material powders and Cudrania extract is most preferably powder: extract = 2.5: 1. When the proportion of the extract in the mixing ratio is increased, the antimicrobial material is uniformly mixed and fluidity is increased, but when processing the antimicrobial coating layer, some of the moisture is separated and the processability is reduced. On the other hand, if the proportion of the extract in the mixing ratio is reduced, there is a problem that some of the antimicrobial materials do not melt uniformly during the processing of the antimicrobial coating layer.

4 is a perspective view of a lower frame of a photovoltaic floating device according to an embodiment of the present invention.

As shown in Figure 4, the configuration of the lower frame 2 of the photovoltaic power generation floating device according to an embodiment of the present invention, a hole 211 is formed in the center corresponding to the coupling projection of the solar module described above The lower frame main body 21 in which the inclined grooves 212 are formed, and the spherical rotation part 213 rotatable inside the center hole 211 of the lower frame main body are provided.

5 is a cross-sectional view of a fastening portion of a lower frame and a support of a photovoltaic floating device according to an embodiment of the present invention.

As shown in FIG. 5, the fastening part of the lower frame 2 and the support 3 of the photovoltaic floating device according to an embodiment of the present invention is a support that is vertically coupled to the rear center of the solar module 1 (3) The semi-spherical fastening groove 31 at the rear end is made to be engaged with the spherical rotating part 22 of the lower frame 2 described above. At this time, the fastening groove 31 is fastened while covering more than 60% of the rotating portion 22, the fastening portion is designed to be able to rotate 360 °.

The coupling protrusion 11 of the rim of the solar module and the groove 212 of the lower frame may be formed in a straight line and a curved line, and a foam rubber composition may be applied to reduce noise during rotation.

The foam rubber composition is based on 100 parts by weight of natural rubber, 25 parts by weight of solution styrene butadiene rubber, 15 to 17 parts by weight of p, p'-oxybisbenzenesulfonyl hydrazide, 3 to 5 parts by weight of flame retardant, Contains 1 to 3 parts by weight of epoxidized soybean oil.

The epoxidized soybean oil composition is used as a softener capable of improving elasticity and processability, and the flame retardant includes at least one of antimony molybdate, molybdenum oxide, and magnesium hydroxide.

(Experimental Example 1)

When the foamed rubber composition was applied to the coupling protrusions of the solar module and the grooves of the lower frame according to the present invention, a noise confirmation experiment was performed to confirm that it exhibited a noise reduction effect.

A decibel meter was prepared to measure the noise before and after applying the foamed rubber composition to the coupling projections of the solar module and the grooves of the lower frame. The noise source and the decibel meter were measured for 10 seconds with a distance of 50 cm between them. The results are shown in Table 1 below.

Before applying the foamed rubber composition After applying the foam rubber composition Measurement decibel (dB) 112.2 84.8 Noise reduction rate - -24.4%

As described above, after applying the foamed rubber composition according to one embodiment, it was confirmed that the noise was reduced by about 25% and the noise reduction effect was exhibited. Therefore, by applying the foamed rubber composition according to the present invention, it is possible to reduce noise and block an obstacle in communication of workers and protect hearing.

(Experimental Example 2)

When the anti-slip pad was attached to the footrest according to the present invention, a work efficiency evaluation experiment was conducted on a total of eight people aged 19 to 55 who had no abnormality in movement and senses of the lower limbs to confirm that the work efficiency of the worker improved. . First, it was made to work for 2 hours on a footrest without an anti-skid pad, and then it was made to work for 2 hours on a footrest with an anti-skid pad attached. Table 2 shows the number of slippage during the working time.

Subject 1 Subject 2 Subject 3 Subject 4 Subject 5 Subject 6 Subject 7 Subject 8 Pad × Number of slips 0 One 2 0 0 0 One 0 Pad ○ Number of slips 0 0 0 0 0 0 0 0

As described above, 3 out of 8 evaluators slipped before installing the anti-skid pad, and no one slipped after installing the anti-skid pad. Therefore, according to the present invention, attaching the anti-skid pad to the scaffold can improve work efficiency and secure the safety of the worker's work environment.

(Comparative Example 1, Comparative Example 2, Comparative Example 3)

The antimicrobial coating layers of Comparative Example 1, Comparative Example 2, and Comparative Example 3 were prepared as follows by varying the amount of antimicrobial material added compared to the antibacterial coating layer of the present invention.

Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Lacquered charcoal powder 2 1.3 2.5 2 Chitosan powder 2 1.3 2.5 2 Bamboo charcoal powder 1.7 One 2.1 One Cudrania extract 2.3 1.4 2.9 3 Total amount of antibacterial material added
(Parts by weight) 8 5 10 8

(Experimental Example 3)

In order to confirm the antimicrobial effect of the antimicrobial coating layer according to the present invention, a fungal detection experiment of the antimicrobial coating layer composition (Example, Comparative Example 1, Comparative Example 2, Comparative Example 3) prepared by the above process was performed. The bacteria detection test was performed on a sterile worktable, and a dry film medium for Staphylococcus aureus was used.

First, 9 mL of sterile water is added to 1 g of the antimicrobial coating layer composition to make a 10-fold diluted solution evenly mixed using a homogenizer. After transferring the sample dilution solution to a sterile test tube, inoculate Staphylococcus aureus to a concentration of 3.0 × 10 ² CFU / mL and mix using a Voltex Mixer. After inoculating 1 mL of the completed sample solution in a dry film medium, transfer it to an incubator and incubate at 35 ° C. for 48 hours. After 48 hours, the number of colonies formed on the dry film medium was read to calculate the rate of change of the number of bacteria. The results are shown in Table 4 below.

Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Total powder 5.7 3.6 7.1 5 Cudrania extract 2.3 1.4 2.9 3 Antibacterial material
Total amount added
(Parts by weight) 8 5 10 8 Bacteria concentration
(CFU / mL) <10 1.7 × 10 ² <10 <10
Equal number
Rate of change -99% -44% -99% -99%

As in the above results, in the case of Comparative Example 1, although the concentration of the inoculated bacteria was reduced, Staphylococcus aureus remained, and in Examples, Comparative Examples 2 and 3, the bacteria were almost eliminated. However, in the case of Comparative Example 2, when the film was produced, the amount of antimicrobial material was added, so it was not uniformly mixed and the surface of the film was roughly unsuitable for application. There is a problem that does not melt evenly when processing the antimicrobial coating layer while a part of the clump. Therefore, the antibacterial coating layer according to the present invention is suitable for application to a buoyant body and exhibits an antibacterial effect.

1: Solar module 11: Combined projection
2: Lower frame 21: Lower frame body
211: Central hole 212: Coupling groove
213: rotating part 3: support
31: fastening groove 4: floating part
41: top 42: scaffolding
43: anti-skid pad 44: buoyancy body
441: antibacterial coating layer 45: frame
5: Connection 6: Lighting
7: Mooring device

Claims (7)

A solar module that includes a solar cell and is formed in an inclined shape on a circular rim, absorbs sunlight, and produces a DC power source.
The lower frame coupled to the lower end of the photovoltaic module and formed with an inclined groove engaged with the coupling projection of the photovoltaic module,
A support that connects to the center of the rear side of the solar module and the center of the lower frame and can rotate 360 °,
A floating portion installed at the bottom of the lower frame of the solar module to support the floating surface, and
Each of the floating unit is installed the above-mentioned photovoltaic module is connected to each other and the connection portion that can move flexibly according to the flow of the fluid,
A lighting that is installed around the outside of the section of the floating portion connected to the connection portion and can check the position and height of the photovoltaic floating device even at night,
It is installed at the bottom of the floating portion includes a mooring device that is fixed so as not to move under the influence of wind or fluid flow,
The above-described lower frame,
A lower frame body having a hole formed in the center and having an inclined groove corresponding to the coupling protrusion of the solar module,
A photovoltaic floating device comprising a spherical rotating part rotatable inside the center hole of the lower frame body. According to claim 1,
The above-mentioned floating part,
The upper frame to which the above-described lower frame is bound, and a footrest that is located in front of the upper plate and can be treaded by an operator,
Anti-skid pad attached to the surface of the scaffolding,
A buoyancy body coupled to the upper portion of the upper plate and the lower portion of the scaffold and including an antimicrobial coating layer inside and outside,
A photovoltaic floating device comprising a frame connecting the buoyancy body. According to claim 2,
The anti-skid pad,
Based on 100 parts by weight of natural rubber, 23 to 27 parts by weight of p, p'-oxybisbenzenesulfonyl hydrazide, 10 to 15 parts by weight of polylactic acid, 8 to 10 parts by weight of butyl acrylate, 5 to methylmethacrylate 10 parts by weight, 1 to 3 parts by weight of epoxidized soybean oil, a solar power floating device, characterized in that it comprises a protrusion protruding at regular intervals on the surface. According to claim 2,
The antibacterial coating layer,
Based on 100 parts by weight of the elastomer resin, it is 15 to 37 µm thick, including 25 to 40 parts by weight of ethylene vinyl acetate copolymer, 15 to 20 parts by weight of polyurethane, and 6.5 to 8 parts by weight of antibacterial material, lacquered charcoal powder, chitosan powder, A photovoltaic floating device comprising a mixture of at least one of bamboo charcoal powder and Cudrania extract. delete According to claim 1,
The above support,
The pole is vertically coupled to the rear center of the photovoltaic module and a pole having a semi-spherical fastening groove is formed at the rear, so that the semi-spherical fastening groove of the pole is fastened to the spherical rotating part of the lower frame so as to rotate 360 °. Solar power floating device, characterized in that the design. According to claim 1,
The coupling protrusion of the rim of the solar module and the groove of the lower frame may be formed in a straight line or a curve, and a foam rubber composition may be applied to reduce noise when rotating.
The above-mentioned foam rubber composition is based on 100 parts by weight of natural rubber, 25 parts by weight of solution styrene butadiene rubber, 15 to 17 parts by weight of p, p'-oxybisbenzenesulfonylhydrazide, and 7 to 11 of methyl methacrylate Photovoltaic floating device, characterized in that it comprises 1 part by weight of a flame retardant, 3 to 5 parts by weight of epoxidized soybean oil.

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