JP5699288B1 - Danger management device and risk management method - Google Patents

Abstract

A risk management apparatus and a risk management method capable of performing risk management over a long period of time are provided. A risk management apparatus and a risk management method for making a risk manifest, wherein an electrode part 12 and natural water 15 existing in nature when a predetermined event occurs can be introduced into the electrode part 12 as an electrolyte. And using the chemical reaction (oxidation / reduction reaction) of this battery, it becomes possible to make the danger manifest and inform the surroundings, and also prepare the electrolyte Can be made unnecessary. [Selection] Figure 1

Description

  The present invention relates to a risk management device and a risk management method for making a risk manifest.

  Every day, great damage is caused by events such as natural disasters and man-made disasters such as major earthquakes and abnormal weather. It is preferable to avoid such damage, but in reality, it is almost impossible to detect and manage all dangers in advance.

  If some danger occurs chronically and there is a possibility that damage will occur as a result of a predetermined event, a risk management device is required to make the chronic danger manifest.

JP 2011-142047 A

  However, many danger management devices require a power source, and when the power source is a battery, its life is always a problem. In addition, a power source obtained from a commercial power source also has a circuit life, and regular maintenance is necessary to ensure a stable and normal power source, resulting in maintenance costs. In particular, when many risk management devices are provided, the maintenance cost is enormous.

  Even when regular maintenance is performed, the life of the battery of the danger management device may expire at a timing different from the maintenance timing. At this time, when a large natural disaster or the like occurs, the danger management device does not operate, and it becomes impossible to prevent damage in advance.

  Therefore, in view of the above problems, an object of the present invention is to provide a risk management device and a risk management method capable of performing risk management over a long period of time.

1st invention has an electrode part and the electrolyte solution injection | throwing-in part which can throw in into the said electrode part natural water which exists in nature when a predetermined event generate | occur | produces as said electrolyte solution, The said natural water is said electrode A risk management device that causes an oxidation / reduction reaction in contact with a part and exposes danger through a medium generated based on a current generated as a result of the oxidation / reduction reaction, the electrolyte solution charging unit Is a gap-containing member that has a predetermined gap and that feeds the natural water into the electrode part by utilizing capillary action, and the tip of the electrolyte solution feeding part has the above-mentioned when a natural disaster occurs. It is disposed at a site where natural water is generated and is in contact with the natural water, and is disposed at a site where the natural water is not generated and is not in contact with the natural water in normal times other than the natural disaster. And

In this case, the gap-containing member is preferably, for example, a tubular member, a fiber body, a slit-containing member, or the like .

In this case, it is preferable that the electrode portion uses a magnesium alloy and copper, zinc and copper, and other metal pairs in which electrons move in one direction, which are pairs of materials constituting the battery .

According to a second aspect of the present invention, there is provided an electrode unit, and an electrolyte solution charging unit capable of charging natural electrode existing in nature when a predetermined event occurs into the electrode unit as an electrolyte solution, wherein the natural water is the electrode. A risk management method in which an oxidation / reduction reaction occurs in contact with a part and the danger is manifested through a medium generated based on a current generated as a result of the oxidation / reduction reaction, the electrolyte solution charging unit Is a gap-containing member that has a predetermined gap and that feeds the natural water into the electrode part by utilizing capillary action, and the tip of the electrolyte solution feeding part has the above-mentioned when a natural disaster occurs. It is disposed at a site where natural water is generated and is in contact with the natural water, and is disposed at a site where the natural water is not generated and is not in contact with the natural water in normal times other than the natural disaster. And

In this case, as the gap-containing member, for example, a tubular member, a fiber body, a slit-containing member, or the like is preferably used .

In this case, it is preferable that the electrode portion uses a magnesium alloy and copper, zinc and copper, and other metal pairs in which electrons move in one direction, which are pairs of materials constituting the battery.

  According to the present invention, since natural water in the natural world is not poured into the electrode portion in normal times, the electrode portion and the electrolytic solution do not come into contact with each other and the battery is not started. For this reason, there is little wear of an apparatus and components. Thereby, even if the apparatus is installed for a long time, it is possible to prevent the product life from being exhausted.

  On the other hand, when a predetermined event occurs, natural water existing in the natural world is introduced into the electrode part as an electrolytic solution by the electrolytic solution introduction part. Thereby, it starts as a battery for the first time. And by utilizing the chemical reaction of this battery, it becomes possible to reveal the danger and notify the surroundings. In particular, by using natural natural water as the electrolytic solution, it is not necessary to prepare the electrolytic solution in advance.

  In addition, by adopting a configuration in which the electrical energy generated by the chemical reaction of the electrode unit when natural water is introduced into the electrode unit is transmitted from the transmitter unit as a physical means, the danger can be easily notified to the surroundings. Can do.

  Moreover, it becomes easy for the electrolytic solution charging part to suck up natural water and supply it to the electrode part by utilizing the capillary phenomenon.

  In addition, since the electrolytic solution charging portion is a gap-containing member (for example, a tubular member, a fiber body, or a slit-containing member) having a predetermined gap, a capillary phenomenon can be easily generated.

  Moreover, by using a battery including a magnesium alloy and copper, zinc and copper, and other metal pairs in which electrons move in one direction, which is a pair of materials constituting the battery, it can be easily obtained at low cost, and It is possible to reliably start when a predetermined event occurs.

It is a conceptual diagram of the risk management apparatus of one Embodiment of this invention. It corresponds to the 1st example of the danger management device of one embodiment of the present invention, and is a conceptual diagram in the state where the risk is not actualized. It corresponds to the 1st example of the danger management device of one embodiment of the present invention, and is a conceptual diagram in the state where the risk became obvious.

  A risk management apparatus and a risk management method according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the risk management device 10 according to an embodiment makes a risk manifest by using a chemical reaction (for example, oxidation / reduction reaction) of a battery.

  The danger management device 10 can supply the electrode unit 12, the electrolyte solution 14, and natural water 15 (see FIGS. 2 and 3) existing in nature when a predetermined event occurs to the electrode unit 12 as the electrolyte solution 14. An electrolytic solution charging unit 16 and a transmitting unit 18 that transmits electrical energy generated by a chemical reaction (for example, oxidation / reduction reaction) of the electrode unit 12 as physical means are provided.

  The electrode unit 12 includes, for example, a positive electrode unit 20, a negative electrode unit 22, and a separator 24 disposed between the positive electrode unit 20 and the negative electrode unit 22.

  The positive electrode part 20 is composed of a positive electrode current collector 26. The positive electrode current collector 26 includes, for example, a positive electrode active material (a material that receives electrons) 26A and a conductive material 26B.

  The negative electrode part 22 includes a negative electrode current collector 28. The negative electrode current collector 28 is composed of, for example, a negative electrode active material (a material that emits electrons) 28A. The negative electrode current collector 28 may include other conductive materials (not shown) in addition to the negative electrode active material (material that emits electrons) 28A.

  The separator 24 is disposed between the positive electrode portion 20 and the negative electrode portion 22 in a state where they are appropriately in contact with each other. The separator 24 serves to prevent a short circuit between the positive electrode portion 20 side and the negative electrode portion 22 side, and to suck up the electrolyte solution 14 and hold the electrolyte solution 14.

  Although it does not specifically limit as the separator 24, For example, a polyethylene fiber, a polypropylene fiber, glass fiber, a resin nonwoven fabric, a glass nonwoven fabric, a filter paper etc. can be used.

  The lead wire 20A connected to the terminal on the positive electrode portion 20 side and the lead wire 22A connected to the terminal on the negative electrode portion 22 side prevent the inflow and outflow of electrons due to the reduction reaction and oxidation reaction that occur in the positive electrode portion 20 and the negative electrode portion 22. This is an area provided for outputting to the transmitter 18 in the form of current.

The electrolytic solution 14 has a role of eluting ions generated on the negative electrode part 22 side and supplying water (H ₂ O) that reacts with oxygen to the positive electrode part 20 side. As the electrolytic solution 14, an acidic, alkaline, or neutral aqueous solution can be used. For example, at least one selected from the group consisting of a sodium chloride aqueous solution, a sodium hydroxide aqueous solution, a sodium hydrogen carbonate aqueous solution, and a sodium percarbonate aqueous solution can be used. Alternatively, an aqueous solution of fluoride, an aqueous solution containing halogen, or the like can be used. Alternatively, an aqueous solution of polyvalent carboxylic acid as disclosed in JP 2010-182435 A can be used. As the electrolytic solution 14, for example, water or salt water can be used.

  Here, in the present embodiment, natural water 15 in the natural world is used as the electrolytic solution 14. For this reason, the risk management device 10 does not require the electrolytic solution 14 and a storage unit for storing the electrolytic solution 14 in advance. The greatest feature is that when a predetermined event occurs, natural water 15 existing in the natural world is taken into the danger management device 10 and the natural water 15 is used as it is as an electrolyte.

  The electrolytic solution charging unit 16 is for charging natural water 15 existing in nature to the electrode unit 12 as the electrolytic solution 14 when a predetermined event occurs. Specifically, for example, a member or means for utilizing the capillary phenomenon is used for the electrolytic solution charging unit 16. More specifically, for example, a gap-containing member 42 having a predetermined gap is used as the electrolytic solution charging unit 16, and a tubular member is suitable as an example.

  In addition, since the capillary phenomenon can be realized by cloth or the like, the electrolytic solution charging portion 16 is not limited to the tubular member. For example, it is possible to realize the capillary phenomenon using a member or means in which a space between the fibers exists, specifically, a fiber body, a slit-containing member, or the like.

  Here, the “capillary phenomenon” is a phenomenon in which, for example, an inner liquid such as a thin tubular member ascends (or descends in some cases) in the tube. For example, as a phenomenon, the liquid level in the pipe is not horizontal but has an inclination in consideration of the wettability of the wall surface. In the case of water having high wettability in a glass tube, the liquid level of the capillary rises, but is repelled by glass, and in the case of mercury, the liquid level of the capillary falls. The height at which the liquid rises is determined by the surface tension, the wettability of the wall surface, and the density of the liquid.

  The electrolytic solution charging unit 16 maintains the separated state of the electrode unit 12 and the electrolytic solution 14 in a normal state, and allows the electrolytic solution 14 to be charged into the electrode unit 12 when a predetermined event occurs. . In other words, the electrolyte solution injection unit 16 does not supply the natural water 15 in the natural environment to the electrode unit 12 in a normal state, and uses the natural water 15 in the natural environment as the electrolyte solution 14 only when a predetermined event occurs. 12 For this reason, the natural water 15 contacts the electrode part 12 only when a predetermined event occurs. Thereby, the electrode part 12 is immersed in the electrolyte solution 14.

  Here, “normal” means a time other than when a predetermined event occurs. The “predetermined event” is, for example, a natural disaster such as an earthquake, storm, heavy snow, heavy rain, flood, storm surge, etc., or a predetermined acceleration or the like in the application of external force from a user (human). Means a situation that acts on

  In particular, in a configuration in which the battery is activated by application of external force from the user (human), the risk management device 10 can be operated at a timing convenient for the user.

  The transmitting unit 18 includes a load unit 30 connected to the lead wire 20A on the positive electrode unit 20 side and the lead wire 22A on the negative electrode unit 22 side, and an output unit 32. The load unit 30 receives inflow and outflow of electrons due to the reduction reaction or oxidation reaction occurring in the positive electrode unit 20 or the negative electrode unit 22 in the form of current, and generates physical means based on the current generated by the oxidation / reduction reaction. Circuit. The output unit 32 includes a circuit for outputting the physical means generated by the load unit 30. Thereby, the transmission part 18 can transmit the electrical energy produced by the chemical reaction (for example, oxidation / reduction reaction) of the electrode part 12 as a physical means.

  Note that the load unit 30 and the output unit 32 are not limited to being configured separately, and may be a single circuit, for example.

  The “physical means” means, for example, a medium generated by using an electric current generated by an oxidation / reduction reaction of a battery. For example, the medium is output to the outside using a wireless medium. Here, the wireless medium generally means radio waves, infrared rays, visible light, sound waves, ultrasonic waves, X-rays, etc., and those excluding the sound waves and ultrasonic waves are called electromagnetic waves. Included in physical means.

Here, a battery can be used for the risk management apparatus 10, and a “magnesium battery” can be improved and applied as an example of the battery. A “magnesium battery” is, for example, a magnesium-air battery, which uses oxygen in the air as a positive electrode active material (a material that receives electrons) and magnesium as a negative electrode active material (a material that emits electrons). is there. Magnesium in the negative electrode part 22 emits electrons and becomes magnesium ions and is eluted in the electrolytic solution. On the other hand, in the positive electrode part 20, oxygen and water receive electrons and become hydroxide ions. When the battery is viewed as a whole, an electromotive force is generated between the _two electrodes as magnesium hydroxide (Mg (OH) ₂ ) is generated from magnesium, oxygen, and water. By improving a so-called magnesium battery as a battery, it can be easily obtained at low cost, and the battery can be reliably started when a predetermined event occurs.

Each reaction formula in the positive electrode part 20 and the negative electrode part 22 is as follows.
Positive electrode part: O ₂ + 2H ₂ O + 4e ⁻ → 4OH ⁻
Negative electrode portion: 2Mg → 2Mg2 ⁺⁺ 4e ⁻
Entire battery: 2Mg + O ₂ + 2H ₂ O → 2Mg (OH) ₂ ↓

Furthermore, the following side reaction is considered to have occurred.
Mg + 2H ₂ O → Mg ²⁺ + 2OH ⁻ + 2H ₂ ↑

  The positive electrode portion 20 has a role of supplying electrons to oxygen in the air. The material of the positive electrode part 20 is not particularly limited as long as it is a conductive material. For example, a carbonaceous material such as activated carbon, carbon fiber, or carbon felt, or a metal material such as iron or copper is used. Can do. As the material of the positive electrode part 20, it is particularly preferable to use carbon powder from the viewpoint of a large contact area with oxygen in the air and excellent current collection efficiency. In FIG. 1, as an example, a copper net is used for the positive electrode active material 26A, and activated carbon is used for the conductive material 26B.

  You may attach the wire etc. which consist of electroconductive materials, such as copper, with respect to the surface by the side of the positive electrode part 20 which contact | connects air. Thereby, it is possible to increase the contact area of oxygen and the positive electrode part 20, and can further improve the current collection efficiency in the positive electrode part 20 of a battery.

  The negative electrode active material 28A of the negative electrode part 22 is made of, for example, a magnesium alloy. The magnesium alloy is an alloy containing magnesium (Mg) as a main component, for example, an alloy containing 50% by weight or more of magnesium. As the magnesium alloy, for example, Mg—Al, Mg—Mn, Mg—Zn, Mg—Al—Zn, Mg—Zn—Zr, etc. are known, and moreover, aluminum (Al) It is also possible to use a magnesium alloy containing calcium (Ca).

  Elements other than aluminum and calcium may be added to the magnesium alloy. For example, other elements such as Zn, Mn, Si, Cu, Li, Na, K, Fe, Ni, Ti, and Zr may be added. These elements can be added at a ratio of, for example, 1% by weight or less with respect to the entire magnesium alloy. In particular, Zn can be added at a ratio of, for example, 2% by weight or less with respect to the entire magnesium alloy.

  The shape of the magnesium alloy used as the negative electrode portion 22 is not particularly limited, and for example, a magnesium alloy processed into a plate shape, a granular shape, or a powder shape can be used.

  In the magnesium battery, for example, a magnesium alloy containing aluminum (Al) and calcium (Ca) can be used. A magnesium alloy having such a composition has appropriate reactivity and is excellent as a battery material. Moreover, the magnesium alloy of such a composition has the capability to suppress combustion (ability to suppress reaction), and is highly valuable as an industrial material. The magnesium alloy can exhibit excellent performance as a battery material due to the synergistic effect of these conflicting characteristics.

A magnesium alloy containing aluminum and calcium usually has a multilayer structure composed of two phases of a metallic Mg phase (solid solution) and a compound phase (Al ₂ Ca). Because the compound phase is relatively inert, the alloy is less reactive macroscopically. This is confirmed by experience. Moreover, when this multiphase structure is sufficiently fine, the corrosion reaction (dissolution reaction) becomes uniform as a whole and proceeds gently. This is also presumed to play a role in the reactivity and the reaction suppressing ability. That is, it is thought that the reaction suppression by the highly reactive mother phase and the inert second phase of the magnesium alloy greatly contributes to the excellent performance as the negative electrode material of the battery.

  In addition, the arrangement | sequence of the positive electrode part 20, the separator 24, and the negative electrode part 22 which are shown in FIG. 1 shows an example, and is not specifically limited.

  The battery used for the risk management apparatus 10 is not limited to a magnesium battery. For example, it is possible to use a battery including a metal pair that is a pair of substances constituting the battery and a metal pair in which other electrons move in one direction, such as copper, zinc and copper.

  Next, consider places / locations to which the risk management device according to an embodiment of the present invention is applied. For example, there are buildings, vehicles (planes, ships, trains), social infrastructure, and natural objects. Examples of social infrastructure include bridges, tunnels, and dams. Natural objects include bedrock, river beds, harbor areas, construction sites, and so on.

  For example, in the case of a building, an earthquake or storm occurs and the house shakes greatly, but after the earthquake or storm passes, the house is not damaged. However, an excessive load may act on the structural member of the house at the timing when the maximum acceleration is generated, and a crack may be generated inside the structural member. In such a case, there is clearly a risk, but it cannot usually be determined. Therefore, if it is left as it is, the risk increases. It is preferable to install the risk management device 10 of the present invention so that the electrolytic solution charging unit 16 is located at a mechanically important point (for example, a place where the maximum acceleration occurs) in such a structural member of the house.

  For example, in the case of heavy snow, heavy snow accumulates on the roof of the house. Even if it snows, static load continues to act on the house for a certain period of time. There are cases where houses collapse when heavy snow falls overnight. Moreover, even if it does not collapse, the durability of the house is weakened by repeating such a situation every year. Even though I thought there was no problem last year, the durability of the house has actually declined, and there is a possibility that it will collapse with less snow than last year. Therefore, if it is left as it is, the risk increases. In such a house, the relative change between the structure that supports the roof load and the structure that does not support the load is displaced by the load. Even if this displacement is slight, the force acting on it increases. When the displacement exceeds a predetermined value, it is preferable to install the risk management device 10 of the present invention so that the electrolytic solution charging unit 16 is located at a point where this force acts.

  For example, in the case of heavy rains, floods, and storm surges, these damages are significant. For example, even if there is no direct damage to the house, water may pass through the invisible channel and enter the floor and stay there. In addition, water inside the soil may be introduced into the house by capillary action. If left as it is, the house will be the same as when it is built on the pond, and the room will be highly humid, which will encourage the growth of mold and termites. Therefore, if it is left as it is, the risk increases. It is preferable to install the risk management device 10 of the present invention so that the electrolytic solution charging unit 16 is located at a point where such natural natural water can be used as the electrolytic solution.

  For example, in the case of bridges, there are many such as road bridges and railway bridges. The bridge girder and abutment of these bridges are often fixed with bolts or the like. In the case of a road bridge, a large load is applied as a large vehicle passes, and the bolt may be damaged. Therefore, if it is left as it is, the risk increases. In such a case, it is preferable to install the risk management device 10 of the present invention so that the electrolyte charging unit 16 is positioned at a point that receives a force from the bridge structure.

  According to the risk management device 10 and the risk management method of the above embodiment, risk management can be executed over a long period of time with a simple configuration and low cost. In addition, an accident or the like can be prevented in advance by notifying the surroundings of the state in which the danger has become apparent.

  In particular, by using natural water 15 in the natural world as the electrolyte solution 14, it is not necessary to prepare an electrolyte solution inside the danger management device 10. For this reason, it is not necessary to provide an electrolytic solution storage structure for storing the electrolytic solution, and the number of parts and cost can be reduced accordingly.

  Next, an embodiment of the risk management device 10 of the present invention will be described.

(First embodiment)
A first embodiment will be described.

  In the first embodiment, as shown in FIGS. 2 and 3, the electrode portion 12 is located inside the electrolytic solution tank 40. The transmitter 18 is preferably disposed at a position where the electrolytic solution 14 does not contact when a predetermined event occurs (for example, outside the electrolytic solution tank 40).

  For example, a means utilizing capillary action is used for the electrolyte solution charging unit 16, and the gap-containing member 42 is used as an example.

  The gap-containing member 42 is located outside the electrolytic solution tank 40, and one end thereof is connected to the side wall of the electrolytic solution tank 40. A through hole 44 is formed in the side wall of the electrolytic solution tank 40, and one end of the gap containing member 42 communicates with the through hole 44. The other end portion of the gap-containing member 42 is disposed at a location (soil or the like) where natural water in the natural world does not exist at normal times and the natural water 15 in the natural world is accumulated when a predetermined event occurs. For this reason, the place (for example, under the floor of a house etc.) which is not exposed to a daily wind and rain is preferable.

  When the natural water 15 in the natural world is sucked up by the gap-containing member 42 by capillary action when a predetermined event occurs, the natural water 15 in the natural world is supplied to the inside through the through hole 44 of the electrolytic solution tank 40. For this reason, when natural water 15 in the natural world is supplied into the electrolytic solution tank 40, the electrode unit 12 is submerged in the electrolytic solution 14 made of the natural water 15. At this time, it starts as a battery, an oxidation / reduction reaction occurs in the electrode part 12, a current flows, and a physical means transmits from the transmitting part 18. In this configuration, natural water 15 in the natural world is used as the electrolytic solution 14 as it is.

  According to the first example, since the other end portion of the gap-containing member 42 is located in a place where the gap-containing member 42 does not come into contact with the natural water 15 in the natural world, the capillary phenomenon due to the gap-containing member 42 does not occur. Therefore, the natural water 15 is not supplied into the electrolytic solution tank 40 via the gap-containing member 42, and the electrode unit 12 is not submerged in the electrolytic solution 14. As a result, since it does not start as a battery, even when the normal operation continues for a long period of time, the electrode portion 12 and other parts do not wear and the life does not decrease.

  On the other hand, when a predetermined event such as a natural disaster occurs, natural water 15 in the natural world accumulates in the vicinity of the other end of the gap-containing member 42. At this time, the other end portion of the gap-containing member 42 is immersed in natural water 15 in the natural world, and a capillary phenomenon occurs. When the capillary phenomenon occurs, natural water 15 in the natural world collected near the other end of the gap containing member 42 passes through the gap containing member 42 and is supplied to the inside through the through hole 44 of the electrolytic solution tank 40. . And the electrolyte solution 14 which consists of the natural water 15 accumulates in the inside of the electrolyte solution tank 40, and the electrode part 12 is immersed. As a result, the battery is activated, an oxidation / reduction reaction occurs in the electrode part 12 and a current flows, and the physical means is transmitted from the transmitting part 18 to the outside.

  As a result, not only the surroundings but also a remote third party can be notified that the risk has been realized, and it becomes possible to deal with the risk.

  In particular, the natural water 15 in the natural world is used as the electrolytic solution 14 without any treatment on the natural water 15 in the natural world. For this reason, the risk management apparatus 10 does not need to be provided with a storage unit for storing the electrolyte solution in advance and an electrolyte solution generating means for generating the electrolyte solution. For this reason, the number of parts of the risk management device 10 can be reduced, and as a result, the cost can be reduced and the size can be reduced. In addition, by disposing the end of the gap-containing member 42 at a place where water accumulates when a predetermined event occurs, the natural water 15 is supplied to the electrolytic solution tank 40 using a capillary phenomenon when a predetermined event occurs. The electrode portion 12 can be surely submerged in the water. For this reason, when a predetermined event occurs, it can be reliably activated as a battery, and the accuracy and reliability of the risk management device 10 can be improved.

  The above-described embodiment is only an example, and the present invention is not limited to the content of the embodiment.

DESCRIPTION OF SYMBOLS 10 Risk management apparatus 12 Electrode part 14 Electrolyte 15 Natural water 16 Electrolyte injection | throwing-in part 18 Transmitter 20 Positive electrode part 22 Negative electrode part 24 Separator 26 Positive electrode collector 26A Positive electrode active material 26B Conductive material 28 Negative electrode collector 28A Negative electrode active Substance 30 Load section 32 Output section 40 Electrolyte tank 42 Gap-containing member 44 Through hole

Claims (4)

An electrode part;
An electrolyte charging unit capable of charging natural water existing in nature as an electrolytic solution into the electrode unit when a predetermined event occurs;
Have
A risk management device that causes an oxidation / reduction reaction when the natural water comes into contact with the electrode unit, and exposes danger through a medium generated based on a current generated as a result of the oxidation / reduction reaction. ,
The electrolytic solution charging part is a gap-containing member that has a predetermined gap and that charges the natural water into the electrode part using capillary action,
The tip of the electrolytic solution charging unit is disposed at a site where the natural water is generated and comes into contact with the natural water when a natural disaster occurs, and
The risk management device , wherein the natural water is not generated in a normal time other than the natural disaster and is disposed at a portion where the natural water does not come into contact with the natural water . The risk management apparatus according to claim 1, wherein the electrode unit includes a metal pair in which electrons move in one direction . An electrode unit and an electrolyte solution charging unit capable of supplying natural water existing in nature to the electrode unit as an electrolyte when a predetermined event occurs, and the natural water comes into contact with the electrode unit and oxidizes. A risk management method in which a reduction reaction occurs and the danger is manifested through a medium generated based on the current generated as a result of the oxidation / reduction reaction,
The electrolytic solution charging part is a gap-containing member that has a predetermined gap and that charges the natural water into the electrode part using capillary action,
The tip of the electrolytic solution charging unit is disposed at a site where the natural water is generated and comes into contact with the natural water when a natural disaster occurs, and
DANGER manage how to wherein the natural water is arranged at a site that is not in contact with and the natural water does not occur at the normal times other than the natural disaster. The risk management method according to claim 3, wherein the electrode unit includes a pair of metals in which electrons move in one direction .

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