JP2015073061A - Solar system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem with a cross-linked structure, where a solar panel 1 mounted on a frame constructed of a plurality of metal angles 2 and metal pipes 3, is supported by a plurality of supporting column poles 4 having a length equal to or longer than the height for allowing passage of an agricultural machine, e.g., a tractor, that the photovoltaic system itself is destructed, in the worst case, if the agricultural machine, e.g., a tractor, collides with the supporting column pole 4.SOLUTION: A pole 5 having an internal space and made of relatively hard material, e.g., metal or resin and concrete other than the metal, protect the supporting column pole 4 so as to surround the same. Consequently, the pole 4 is protected even if an agricultural machine collides against a protective cover 5 incidentally, and the impact due to incidental collision of an agricultural machine, e.g., a tractor, is prevented from being transmitted to the supporting column pole 4.

Description

  The present invention relates to a bridge structure in a solar sharing system mainly for photovoltaic power generation facilities.

Solar power generation has mainly been installed by installing it on the roof and roof of buildings, but roofs and roofs that guarantee sunshine for decades are particularly rare in urban areas due to construction of condominiums, etc. Since the number of houses is small, the electric power industry's expectation for solar power generation does not increase. In addition, there are many problems inherent to placing on the roof, such as strength maintenance for firefighting countermeasures, fire prevention countermeasures, and construction costs that are dangerous and laying costs increase, and various measures to improve output per unit area, Although it has responded by adapting to various roof shapes and providing the power generation function to the roof material itself, it has not achieved a significant drop in installation costs.

On the other hand, in nuclear power generation, the mechanism of extracting energy as heat by gradually fissioning uranium from atomic bombs that explode at a stroke has been promoted with applause only in the early stages of development. The negative impact of the radioactive leakage at the Fukushima nuclear power plant is immeasurable. Furthermore, the generation of a large amount of poisons such as TRU (super uranium element) that will not disappear even in units of tens of thousands of years, and extreme vulnerability to terrorist attacks on power generation, power transmission, substation facilities, etc. have gradually emerged. The significance of existence is questioned.

The cost of nuclear power generation is estimated to be about 6 yen per kwh in the evaluation of the power generation end. Since the receiving end also includes all costs such as transmission, substation, distribution, general and administrative expenses, these expenses. If it is equally distributed by the amount of power generation by type such as hydropower and thermal power, it will be slightly over 15 yen. If nuclear power plants are far from the city and carry large amounts of electricity, the ratio of substation and transmission costs is large, and there is a lot of related work and borrowing. It will be inevitable that the price will be 17 yen or more. Furthermore, if reprocessing costs, disposal costs for high-level nuclear waste, and protection costs from terrorist attacks are added, it can easily exceed 20 yen, and even the selling price for each household may actually increase. Hanahada is expensive. Furthermore, stress corrosion cracking, which significantly impairs the reliability of equipment, is a fatal problem of equipment that uses neutrons, and the more times it is examined for countermeasures, the more the number of thermal fatigues increases and the more likely corrosion cracking occurs. Therefore, even the clue of the solution has not yet been found as a difficult problem. It is obvious that using high-grade materials will further reduce cost competitiveness.

To increase the destructive power of neutrons in the fast breeder reactor, and to maintain the standard as a power generation method for practical use due to the increased concentration of thermal stress, and to obtain plutonium fuel Spent nuclear fuel must be reprocessed and it cannot be a more profitable system.

One major reason why nuclear power generation full of shortcomings continues to be the subject of the energy policy of the 21st century is because it has the greatest weakness that it requires a huge area to perform photovoltaic power generation on a large scale. There is nothing else.

Hydropower, on the other hand, accumulates enormous energy as water evaporated by solar energy from the Pacific Ocean and the Sea of Japan falls into the mountains as rain and snow on the Japanese archipelago. Since the Meiji Era, it has been developed with hydroelectric power, which is Japan's only independent energy, as the most important power source. In recent years, the negative aspects of dams, such as blocking the flow, upstream nutrients and sediments not reaching the sea, dam lakes immediately filled with sediment and lack of investment effect, etc. And the dam is supposed to lose evaluation for its utility, such as waste. However, the negative aspect of disrupting the natural mechanisms such as blocking the river flow and the upstream nutrients and sediments not reaching the sea is the addition of a once-through water channel that maintains the flow from upstream to downstream as a condition for dam construction. However, if we consider that the water resources stored in the dam can be eliminated with a device such as filtered fresh water, and that it has a great ability to respond to sudden fluctuations in power load, it will not move as natural energy in a broad sense. It is a 21st century way of thinking that would make sense to maintain this position.

In recent years, the cost of the solar power cell itself has drastically decreased, but other costs such as construction costs and distribution costs are added, and the cost of the strength and fire prevention measures to prevent destruction due to strong winds and droughts. The load is large, and the competitiveness is still not as high as the unit price of other power generation methods.

On the other hand, in the recent technology of solar system using sunlight, a solar sharing method that balances agriculture and photovoltaic power generation is gradually spreading among farmers with large land. It is a technology that attempts to achieve both solar power generation and crop cultivation by arranging solar panels spaced apart so that sunlight reaches the ground. Further, the pole supporting this solar panel must be arranged at a height that allows agricultural machinery such as a tractor and people to pass through in order to carry out agriculture. In this case, as solar sharing spreads in the future, naturally, if the tractor accidentally collides with the pole and the pole is damaged or recessed, it will not be a problem, but it will be destroyed There is a possibility that the power generation system cannot be performed due to the collapse of the bridge structure. In the worst case, there is also a risk of human damage due to falling solar panels.
For example, Japanese Patent Application Laid-Open No. 2005-277038 describes a solar sharing system method that achieves both agriculture and solar power generation. However, in this document, there is no consideration regarding the danger if an agricultural machine such as a tractor that is indispensable for agriculture hits a pole.
Japanese Patent Application Laid-Open No. 2011-099221 describes a pole defense related to a solar system. However, this proposal is intended to prevent the corrosion of the pole itself by installing a rubber band for the purpose of waterproofing the base of the pole. It is not a protection against accidental collision with people or agricultural machinery. .

In addition, although there is nothing to do with the solar panel cross-linking structure, there are very many examples and patent documents in which a cushioning material for protection is wound around a pole or the like. However, rather than protecting all the poles etc., these are mainly proposals aimed at protecting people and cars from being damaged or injured when people or cars hit them. There are no suggestions to protect yourself. In addition, a tractor is not like a passenger car, whose appearance is relatively important, even if it is damaged by, for example, the pole protection. In other words, pole destruction protection is given priority over tractor wounds.

JP 2005-277038 A JP2011-099221A JP 06-178842 A JP 07-150530 A JP 07-062619 JP-A-11-245946

Since the present invention first installs a solar panel at a height that allows a tractor or the like to pass through, in that case, a plurality of poles supported by the lower part of the bridge structure for installing the solar panel, If the tractor accidentally hits it and destroys it, the solar panel, etc. would fall and cause human damage. In addition, since the tractor is a farm equipment, it has a very high horsepower, and if it hits a solar system pole, there is a risk that it will be relatively easily destroyed. In addition, a tractor doesn't care as much as a normal passenger car, even if it hits something or gets dents. We devised in consideration of these viewpoints.

In order to prevent the pole from being destroyed by the collision of a tractor with horsepower, it is necessary to protect the outside of the pole with a relatively strong material that can withstand when the tractor hits it. First of all, it is conceivable to open a space outside the pole so that impact force is not transmitted directly to the pole and to provide a metal or concrete pipe. At this time, the interval between the protective cover provided on the outside and the protective cover must be such that the tractor can pass. In addition, as a publicly known technique for protecting the pole, it is generally considered to easily wrap a cushion material, but in fact, this prevents the person from being injured or the car from being damaged rather than the pole. It is for the purpose, not to protect Paul himself. The present invention must be for the purpose of protecting Paul itself.

According to the present invention, the pole supporting the gantry structure in which the solar panels are arranged is protected by the pole protective cover placed at an interval through which the tractor can pass. This protects the photovoltaic power generation system and avoids human damage caused by falling objects such as solar panels due to the worst case destruction.

It is an isometric view showing the present invention. It is an isometric view showing another method of the present invention.

An embodiment of the present invention will be described with reference to FIG. The solar panel 1 is placed on a gantry composed of a plurality of metal angles 2 and metal pipes 3. This gantry is supported by a plurality of metal poles 4 having a length that is longer than a height through which agricultural machinery such as a tractor can pass. Further, the metal pole 4 is covered with a pole 5 having a relatively hard material such as a metal having a space inside or other resin or concrete so as to cover the periphery of the metal pole 4. In addition, a space between the plurality of poles 5 is a clearance interval through which an agricultural machine such as a tractor can pass with a margin. Thereby, even if an agricultural machine accidentally collides with the protective cover 5, the pole 4 is protected. Further, the internal portion between the support pole 4 and the protective cover 5 is preferably a space so that an impact caused by a collision of the protective cover 5 such as a tractor is not transmitted to the support pole 4. In order to make the interval position between the covers 5 appropriate, it is possible to put a relatively soft cushion material in advance in some cases.

Next, another embodiment will be described with reference to FIG. A protective cover 7 and a protective cover 8 separated around the support pole 6 are formed. As a result, even if the protective cover is corroded or broken for some reason, it can be easily replaced.

The method of balancing solar power generation and agriculture through solar sharing will not only make nuclear power generation easy, but will also add to the income from the sale of electricity to the farm income. As a result, although it is thought that it will increase more in the future, if there is no protective cover like the present invention and the tractor hits the support pole, the power generation system will be destroyed, or in the worst case, sunlight When human damage occurs due to the fall of the panel, it becomes an essential item of the solar sharing system.

1. Solar panel 2. Metal angle3. Metal pipe 4. Support pole 5. Protective cover Support pole 7. Separate protective cover8. Protective cover isolated

Claims (4)

  In the solar sharing system installed above the height where agricultural vehicles such as tractors pass, a protective cover is provided on a plurality of support poles supporting the bridge structure of the solar sharing system, and a protective cover provided on each pole The solar system is characterized in that the gap between the protective covers is set to allow enough space for agricultural vehicles to pass.   The protective cover according to claim 1 is a member or space having a cushioning effect, and the periphery thereof is formed of a metal pipe, and absorbs an impact when a tractor collides with a support pipe. The solar system of claim 1   The member constituting the protective cover of claim 1 is separated or divided, and can be replaced when metal corrosion or destruction of the protective cover itself, decay of the cushion, or the like occurs. 1 solar system   3. The solar pipe according to claim 1, wherein the support pipe constituting the protective cover of claim 3 is made of a material such as a relatively hard resin or carbon fiber, or a combination of concrete, metal and other materials. system

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