JP3193799U - Water solar generator structure with flexible solar power generation sheet - Google Patents

Abstract

A water solar generator structure that uses a flexible solar power generation sheet and can generate electric power on a water surface with a foamed resin and a plastic material is provided. A flexible photovoltaic power generation sheet is attached to a floating body of a foamed resin body to form a unit, and then the units are connected to form a water solar generator, and both ends thereof are anchored. A lightweight and flexible film solar cell with a weight of 2 kg or less per square meter, preferably 1.2 kg or less per square meter, built a system that will not break even during storms by fixing by the method or driving fixed piles into the ground Were attached to form a unit, and the units were connected on the water to form a generator with an arbitrary capacity. Compared with the panel type solar cell, it uses a lightweight flexible photovoltaic power generation sheet 17 and has a floating 10 structure that can cope with fluctuations in the water level. . [Selection] Figure 5

Description

The present invention relates to a floating solar power generator structure that uses a flexible photovoltaic power generation sheet and can generate power on the water surface by using a foamed resin and a plastic material.

Recently, houses equipped with panel type solar cells have been widely used. This solar cell is heavy and difficult to use on the surface as it is. In order to hold a heavy panel on the surface of the water, a method of maintaining it on the surface of the water with an airtight plastic casing is employed.
On the other hand, the present inventors have already developed a grass-proof power generation sheet integrated with a thin non-woven fabric by utilizing a lightweight flexible solar power generation sheet, and installed and spread it on the slopes of idle fields, dikes and highways. It's getting on. This has led to a reduction in management costs associated with weeding and has been highly evaluated.

While the present inventors are spreading the herbicidal power generation sheet, the module weight in which the solar cell substrate is a plastic film and the module surface material is a thin weathering film is about 1 kilogram per square meter. Taking advantage of its light weight, it came up with a water solar generator structure.

According to the test construction, the organic film has the characteristic that it does not break unlike glass, and there is no fear of damage even after construction in a reservoir or school pool. It has been found that there is no significant effect on the living environment around the construction site and no glare caused by reflected light.

When searching for patents and utility models in the patent electronic library using water power generation and solar cells as keywords, one search was made (Patent Document 1). Furthermore, as a non-patent document, a newspaper article announced Ciel Tail Japan, a subsidiary of Ciel Tail International in France, and the construction in Japan was reported. According to it, an international patent was filed and published as a published patent gazette on May 1, 2014. These are crystalline silicon type cell substrates, and the module weight is about 13 kilograms per square meter, and the currently popularized solar panel for roofing is a patent for a panel support device (Patent Document 2). .
Japanese Patent No. 4845544 Special table 2014-511043

Ciel Tail Japan Co., Ltd. has used a plastic casing that is a water support device for its own solar power generation panel developed by Ciel Tail France. It is published as a report (Non-Patent Document 1).
Ciel tail Japan website

The construction found in prior art documents is a technique for using a conventional panel-type solar cell used on the roof of a house on the surface of the water. In order to float more than 10 kilograms of solar cells per square meter on the water, complex support devices are used to withstand large foundation floats and waves. When an object on the water grows larger, there is a concern that it will be destroyed by the arrival of strong winds and typhoons. It is impossible to remove it by typhoon forecast and rearrange it after passing. Therefore, we pursued a structure that can withstand wind and rain by reducing the weight and space as much as possible, and made the flexible solar power generation unit and the floating body integrated.

In the case of a reservoir, the water level tracking type by using 1 underwater or pond bottom anchor, 2 fixing to the revetment, 3 water solar generator loop slide method so that the position of the light water solar generator will not change greatly due to wind and rain. Revetment installation pipes, 4 floating adoption and mooring rope position variable function to cope with fluctuations in water depth due to coupling method, adoption of 5 degrees of freedom coupling method, 6 bird dropping prevention wire installation, 7 rain We investigated the inclination of about 10 degrees of flexible solar power generation sheet for removing rainwater and solved the problem by each effect and possible combinations. In construction, it is essential to investigate the structure of reservoirs and the like in advance.

In the case of a smooth reservoir with a bottom such as an artificial pool, if the bottom is undulated by fastening to a pillar fixed by a heavy object such as a concrete block submerged in the bottom, The problem was solved by a mechanism that absorbs changes in the water level by means of a slider bar fixed to the water and a mooring rope that responds to fluctuations in water depth. The change of the water surface due to wind and rain was solved by a mechanism that absorbs the degree of freedom in the vertical direction in the connecting method of adjacent units.

When installing a floating solar power generator system outdoors, it is essential that the system is not affected by wind and rain according to the environment of the installation site. By investigating the characteristics of natural reservoirs and artificial reservoirs and utilizing the characteristics of floating solar power generators with flexible solar power generation sheets, the effects of the generator structure can be demonstrated. In this invention, the effect which can respond also to the subject of the change of the water level by the water level and the wind was recognized.

It is a cross-sectional schematic diagram of a reservoir. It is the surface schematic diagram of the reservoir in which the lightweight water solar generator was constructed. It is the schematic diagram which stabilized the water solar generator on the water surface of the reservoir by the anchor method. It is the schematic diagram which constructed the water solar generator on the surface of a water storage pool. It is a schematic diagram of one Example holding the surface solar power generator in the case of a water storage pool on the water surface.

Compared to conventional panel-type solar cells, the installation of a flexible photovoltaic power generation sheet on the water, which is extremely lightweight, requires stability against waves rather than buoyancy. In the former case, a thick air layer was required for the floating body, but in the case of the flexible photovoltaic power generation sheet of the present invention, if the buoyancy of the resin body having a foam structure is used, the foam is about 10 cm thick Floats on the surface of the water just pasting on the body. By transporting this lightweight unit to the site and installing it on the water while connecting a predetermined amount on land, it will be completed as a water solar generator. Unlike the method of maintaining the photovoltaic power generation panel with an airtight plastic casing, the workability is extremely simple because it is not necessary to perform a connecting operation on the water surface.

A water solar generator unit with the following specifications was assembled. The buoyancy material is a water solar generator unit with a power generation capacity of 180 watts, which uses a high-density foam, has a width of 91 cm, a length of 345 cm, and a height of about 10 cm. As a floating body that can withstand wind and rain and waves, a power generation was smoothly performed using a foaming degree of 38 times, a bending strength of 36 Newtons per square centimeter, and a water absorption of 0.2 grams per 100 square centimeters. With 63 units connected, power generation of 11.3 kilowatts was achieved.

For the connection of the water solar generator unit, a method of connecting through a mooring wire inside the unit and a method of connecting adjacent units with metal fittings are used according to the state of the water surface to be installed and the number of units to be connected. Neither method completely integrates adjacent units, but gives freedom in the vertical direction. The method of connecting the units by metal fittings can easily separate the units.

By placing a thin wire with a diameter of about 0.05 mm around the surface of the floating solar generator, it was possible to prevent birds from flying in and to reduce contamination by feces.

In the case of the natural reservoir shown in Fig. 1, if the bottom is flat, the anchor method shown in Figs. 2 and 3 can be used. Is required. In the case of a pool with a flat bottom, a mooring method as shown in FIGS. 4 and 5 is adopted. 9 is a support with a heavy foundation, moored together with the float 10 on the 11 ring rope, and along with the float, a light water solar generator unit is stably present on the surface of the pool in response to changes in the water level. Let

1 reservoir water 2 bottom of the pond 3 water surface 4 bank around the pond 5 schematic diagram of the elliptical reservoir 6 part of the floating solar generator that rises and falls according to the water level 7 anchor 8 to fix the floating solar generator 8 floating solar power generation Mooring rope to the anchor of the machine 9 Pillar with base for mooring the water solar generator 10 With the water solar generator, the float 11 whose height changes depending on the level of the water level and the ring rope mooring the generator 12 Water solar generator and ring rope connection 13 Buoyant material using high density foam 14 Pool bottom 15 Current collecting cable 16 Flexible connection 17 Flexible solar power generation sheet

Claims (4)

A flexible solar power generation sheet is attached to a floating body of foamed resin body to form a unit, and then the unit is connected to form a water solar generator, and both ends thereof are fixed to the anchor method or to the ground Water solar generator structure that has built a mechanism that will not break even during storms by driving fixed piles A light and flexible film solar cell with a weight of 2 kg or less per square meter, preferably 1.2 kg or less per square meter is attached to form a unit, and the units are connected on the water to generate power of any capacity. The water solar generator structure of claim 1 having a structure for use as a power generator A floating structure that can handle fluctuations in the water level using a lightweight flexible photovoltaic sheet compared to a panel-type solar cell. 2 water solar generator structure The structure of the water solar generator according to claim 3, wherein the flexible solar power sheet is inclined at an angle of 10 degrees or less in order to eliminate rainwater remaining on the water solar generator.

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