JP2000084103A - Material for preventing spread of fire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a material for preventing the spread of a fire which is soft and can easily applied for coating an object, etc., because it is ball-shaped or net-like, which can coat an object in the distance and in a short period of time by using a launcher, etc., which can greatly reduce risks of a person using the material, and which can securely prevent the spread of a fire by letting the material absorb or include water. SOLUTION: This material for preventing the spread of a fire includes at least a water absorbing polymeric material which can absorb or include released water. When there is a possibility that a fire may spread, a great amount of water will be absorbed in a prescribed amount of connected strings or fine grains of the water absorbing polymer material to form a water-including layer to prevent the spread of the fire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire-retardant material comprising a water-absorbent polymer material, which is lightweight and easy to handle and carry. It is easy to apply a coating or the like, and it can be coated even if it is far from an object by using a launching device or the like. The application to the target object can be performed in a short time by using the launching device, etc., and the danger of personnel involved in the application is extremely small, and furthermore, it is possible to reliably prevent the spread of fire by absorbing or absorbing water. It is intended to provide materials.

The present invention is not only characterized by an extremely flexible shape, but also by a method in which the object is released in a dry state and then hydrated by water discharge or the like (the object having a risk of fire spread is coated beforehand). In advance, when the possibility of fire spread becomes high, water is released by water discharge, etc.), or a method of mixing with water discharge and causing water to be released at the same time as release, and a method of releasing water in a water-containing state (when using a disaster prevention helicopter, etc. , Water-containing fire-prevention material, fire-prevention material, etc. are released together with water), and the method of use can be flexibly adapted according to the situation. It is intended to provide materials.

[0003]

2. Description of the Related Art Due to rapid technical innovations in recent years and the provisions of the Fire Service Law and the like, various fireproof structures and equipment have been developed and spread. In general households, fire-prevention measures such as use of fire-retardant building materials and flame-retardant curtains from fire walls and installation of digestive organs are being taken. Hotel and
Large-scale facilities such as factories are subject to stricter Fire Defense Law,
Installation of fire alarms, fire hydrants or sprinklers is required. The awareness of fire prevention has also been improved by regularly conducting fire drills and the like for employees and the like. However, most of these facilities and technologies are targeted at the initial fire extinguishing in the event of a fire or a misfire that may cause a fire. Of course, at your own risk, it is highly possible that the source of fire can be prevented by the above equipment, etc.
If a large-scale fire occurs in the neighborhood, will it be possible to prevent the spread of fire? Usually, many important cultural properties such as traditional buildings and Buddha statues in Japanese temples are wooden.

[0004] Buildings on the premises such as temples are arranged at regular intervals.
Due to the distance, the likelihood of fire burning may be low, but most of them are close to forests. In recent years, water shortages and air are often dry, and it is therefore difficult to prevent fires by simply cutting down trees, spraying digestives, and discharging water when a large-scale forest fire occurs. This large-scale forest fire is a problem that must be solved not only in Japan but also in other countries. The fire spread prevention material of the present invention is intended to enable fire spread prevention activities from a certain distance when a huge fire, forest fire, or fire spread prevention activity involves danger, and to prevent fire spread by a small amount of water. . It is another object of the present invention to provide a fire spread prevention material that can be used without any risk of environmental pollution because it can be expected to prevent the spread of fire without using chemicals. Heretofore, the following prior arts have been known for the purpose of using such a water-absorbing polymer material to prevent the spread of fire in fire or to prevent water damage. 1) Water fire extinguishing method (Japanese Utility Model Application Laid-Open No. 61-28260) A method in which water-absorbing fibers absorb water to form a water body, thereby reducing damage to water. 2) Water-absorbing sheet (Japanese Utility Model Application Laid-Open No. 04-147850) A water-absorbing sheet is used for the purpose of early detection of a water leak point and flameproofing. 3) Water-absorbing sheet (Japanese Utility Model Application Laid-Open No. 04-234640) The purpose of the sheet is to prevent damage from water leakage in an apartment house. 4) Water-absorbing sheet structure (Japanese Utility Model Application Laid-Open No. 04-132934) The purpose of this is to infiltrate the room by discharging water and to remove water when a water pipe ruptures.

[0005] The main purpose of these prior arts is to reduce water damage due to water discharge or water leakage, and there is a use as a sheet for absorbing water. Therefore, heat resistance and heat insulation of the object are not considered, and the effect of preventing the spread of fire is thin. Further, the following prior arts are known as ones in which a water-containing layer is used for clothing or the like to absorb the water in the clothing or the like for fire prevention. 5) Simple heat insulating sheet (Japanese Utility Model Laid-Open No. 01-145138) An evacuation hood / clothes using a water-absorbing sheet by polymerizing a metal film and a fibrous substrate / sponge-like substrate. 6) Composite fiber structure that can be used for clothing for fire protection
No. 9-267441) A material having heat resistance, heat insulation, water absorption, water retention and fire protection by absorbing water. 7) Evacuation or expropriation storage box in case of fire or the like (Japanese Utility Model Laid-Open No. 48-94929) Invention of storage using a water-containing layer. 8) Fireproof insulation and fireproof insulation container
No. 3597) It is an invention that has a function of fire resistance and heat insulation, but forms a water-containing layer in advance and retains water. 9) Fire protection mat (Japanese Utility Model Application Laid-Open No. 61-118728) This is an integrated sheet in which a fiber mat and a plastic sheet are detachably engaged. Since it absorbs water during use to form a water-containing layer, it has excellent fire resistance. Since it was invented mainly for welding work and fire prevention in kitchens, it is lightweight and excellent in flexibility.

However, since a plastic sheet is used, the object has a low heat and fire prevention function. 10) Fire extinguishing method and fire extinguishing device (Japanese Patent Laid-Open No. 3-29296)
No. 9) Mixing super-absorbent polymer into fire-fighting water and discharging water,
Alternatively, a fire extinguishing method characterized by being mixed into fire extinguishing water. The aim is to minimize rainbow disasters caused by flooding of fire water during a fire.

[0007]

The above-mentioned conventional invention is not an invention mainly aimed at preventing the spread of fire as described above. An object of the present invention is to prevent the spread of fire from a nearby fire or a huge fire that cannot be prevented by itself. In Japan, there are many historical cultural properties that have been handed down since ancient times and must be protected. Most of them are wooden buildings. These important cultural properties must be preserved for posterity. In some cases, fire prevention tanks are installed near valuable national treasures and important cultural properties, but it is difficult to protect the target from forest fires approaching behind.
It is also true that places where these national treasures and important cultural properties exist are often inconvenient for fire fighting activities, such as in the mountains. With the fire spread prevention material of the present invention, a very remarkable effect is exhibited only by providing facilities such as a fire prevention water tank. It is excellent in preventing the spread of fire by a small amount of water, and can also exert a remarkable effect in fire fighting activities using disaster prevention helicopters and the like. By using the launching device, it is possible to prevent fire from spreading from a distance, so that the safety of firefighters and fire brigade members who are working hard to extinguish fires can be secured. And national treasures and important cultural properties can always be preserved in posterity. Of course, it is not only the protection of cultural assets, but also a decisive measure for preventing fire spread such as huge fires and forest fires predicted after the occurrence of the great earthquake. For the purpose of simply preventing the spread of fire, it would be more effective to form the fire wall by making the water-absorbing polymer material into a sheet. However, an object of the present invention is to prevent the spread of fire by a small amount of water safely and instantly from a remote place.

[0008]

The fire spread prevention material of the present invention contains a water-absorbing polymer material capable of absorbing or containing at least water discharge, and, when there is a possibility of fire spread, forming a string-like or finely granular water-absorbing material. It is characterized in that a large amount of water is absorbed by a material in which a certain amount of the conductive polymer material is connected, and a water-containing layer is formed to prevent the spread of fire.

The fire spread prevention material of the present invention contains a water-absorbing polymer material capable of absorbing or containing at least water.
When there is a possibility of fire spreading, a certain amount of string-like or finely-granulated water-absorbing polymer material is connected, and a large amount of water is absorbed by a lump-shaped (ball-like) material to form a water-containing layer. This is characterized by preventing the spread of fire.

[0010] The fire spread prevention material of the present invention contains a water-absorbing polymer material capable of absorbing or containing at least water.
When there is a possibility of fire spread, a large amount of water is absorbed by a net made of a string-like or finely granulated water-absorbing polymer material, and a water-containing layer is formed to prevent fire spread. It is a feature.

The fire spread prevention material of the present invention is to store a fire spread prevention material containing a water-absorbing polymer material capable of absorbing or containing at least water discharge in a dry state in a normal state, and when there is a possibility of fire spread, use a large amount of water. Is absorbed by the water-absorbing polymer material in the fire spread prevention material, and a water-containing layer is formed to prevent fire spread. That is, the fire spread prevention material of the present invention contains at least a water-absorbing polymer material, is lightweight, easy to handle and carry, has a ball-like or net-like shape, is flexible, and can be applied to an object such as coating. It can be coated easily even if it is far away from the object by using a launching device or the like. Application to a target object can be performed easily and in a short time by using a launching device and the like, and the risk of personnel involved in the application is extremely small.
In addition, it is characterized in that it is possible to reliably prevent the spread of fire by absorbing or containing water. The inventor of the fire spread prevention material of the present invention is based on the assumption that the fire is cleared after the fire is extinguished. If it ’s just granular,
Considerable effort will be required to clean up. However, if the granules are connected, the labor for clearing is small. In the case of a forest fire, etc., if the water-absorbing polymer material is used as it is as a tree fertilizer, the burden of clearing will be eliminated. Further, the fire spread prevention material of the present invention has been invented in order to efficiently prevent fire spread in a wide range as well as the problem of cleaning up. It is possible to prevent the spread of fire by hanging it from the roof of a house or building, but it is also assumed that a mechanism that spreads and falls using a firing device will be created. In such a case, the dried net is released using a launcher. Because the helicopter can be fired from some distance rather than directly above the fire, it can protect the helicopter from disasters caused by the hot airflow caused by the fire, and at the same time, does not increase the firepower due to the wind generated by the helicopter rotor. Also, unlike fire extinguisher and the like, it has no effect on the human body and is light, so it can be used safely in urban areas. After that, the net-like fire spread prevention material of the present invention is impregnated with water from the ground or from a high altitude by a helicopter to prevent fire spread. Water discharge from the above high altitude, because the water becomes mist,
Although the direct fire extinguishing ability is low, it is enough to make the net wet and show the fire extinguishing ability. Moreover, since the fire spread prevention material of the present invention has little effect on human bodies and buildings,
Water can be released with confidence.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the fire spread prevention material of the present invention will be described below in detail with reference to the drawings.

FIG. 1A is an explanatory view showing a linear type fire spread prevention material, and FIG. 1B is an explanatory view showing a chain type fire spread prevention material. FIG. 2A is an explanatory view showing a planar type fire spread prevention material, and FIG. 2B is an explanatory view showing a three-dimensional type fire spread prevention material.

In FIG. 1A, reference numeral 1 denotes a granular material of a water-absorbing polymer material capable of absorbing or containing at least water. A large number of the granular materials 1 are connected by a string 2 of a water-absorbing polymer material. Although the linear type fire spread prevention material 11 of such a form can be used as it is, it is desirable to form and use it in a lump using a high-speed rotary granulator or the like.

In FIG. 1B, reference numeral 1 denotes a granular material of a water-absorbing polymer material capable of absorbing or containing at least water. A large number of the granular materials 1 are connected in a chain by a string 2 of a water-absorbing polymer material. Although the chain type fire spread prevention material 21 of such a form can be used as it is, it is preferable to use it in the form of a block using a high-speed rotary granulator or the like as described above.

Therefore, if there is a possibility of fire spread, the linear type fire spread prevention material 11 or the chain type fire spread prevention material 21 absorbs a large amount of water, forms a predetermined water-containing layer, and generates a high heat of fire. By evaporating the water content of the water-containing layer and also utilizing the cooling action at that time, the spread of fire is prevented.

The fire spread prevention materials 11 and 21 containing the water-absorbing polymer material capable of absorbing or containing the discharged water are stored in a dry state under normal conditions. The material can be absorbed by the fire spread prevention materials 11 and 21 to form a water-containing layer to prevent fire spread. FIG.
In (a), 1 is a granular material of a water-absorbing polymer material capable of absorbing or containing at least water discharge. A large number of the granular materials 1 are connected in a plane by a string 2 of a water-absorbing polymer material. The flat type fire spread prevention material 31 in such a form can be used as it is, but can be used by forming it into a block using a high-speed rotary granulator or the like.

In FIG. 2B, reference numeral 1 denotes a granular material of a water-absorbing polymer material capable of absorbing or containing at least water. A large number of the granular materials 1 are three-dimensionally connected by a string 2 of a water-absorbing polymer material. The three-dimensional fire spread prevention material 41 in such a form can be used as it is, but can be used in the form of a mass using a high-speed rotary granulator or the like as described above.

The fire spread prevention materials 31, 41 of this embodiment are:
The fire spread prevention materials 31 and 41 containing a water-absorbing polymer material capable of absorbing or containing at least water discharge are stored in a dry state under normal conditions, and when there is a possibility of fire spread, a large amount of water is supplied to the fire spread prevention materials 31 and 41. And a water-containing layer is formed to prevent the spread of fire. In FIG. 3A, reference numeral 52 denotes a string of a water-absorbing polymer material capable of absorbing or containing at least water. A large number of the strings 52 of the water-absorbing polymer material are connected to each other. When the net-shaped fire spread prevention material 51 of such a form is used,
As shown in FIG. 3B, the net-like fire spread prevention material 51 expands due to the water content, and almost no gap 53 between the nets is present. Therefore, it becomes almost sheet-like during use, and exhibits a further effect of preventing fire spread. In the fire spread prevention material of each of the above embodiments, the connection of the granular materials not only facilitates clearing, but also can effectively prevent fire spread over a wide range. Of course, it is possible to prevent the spread of fire by hanging it from the roof of a house or building, but it is also assumed that a fire prevention device is used to spread and fall. Such a launching device can be easily obtained by incorporating a compressor or the like into ordinary hoses. Of course, it is also possible to apply a gun that emits a net, which is used in hunting birds and beasts.

That is, the fire spread prevention material of the present invention can be used not only as a fire spread prevention material but also as a fire extinguishing material. The present invention can be applied to fire extinguishing work using the equipped launching device or the like. At that time, the personnel engaged in the fire fighting work can also operate the firing device, etc.
In particular, there is no need for personnel to operate the launching device and the like.

[0021]

The fire spread material of the present invention is applied to an object to be protected from fire. That is, since the water-containing layer is formed by sufficiently absorbing water, as the ambient temperature increases, the water-absorbed layer (water-absorbing polymer material) gradually releases the water-absorbed water to become steam. Due to this evaporative action, the temperature rise in the water-containing layer is stopped for a considerably long time. Of course, the fire prevention action can be further continued by continuously discharging water or the like periodically.

[Brief description of the drawings]

FIG. 1A is an explanatory view showing a linear type fire spread prevention material,
(B) is an explanatory view showing a chain type fire spread prevention material.

FIG. 2 (a) is an explanatory view showing a flat type fire spread prevention material,
(B) is an explanatory view showing a three-dimensional fire spread prevention material.

FIG. 3 (a) is an explanatory view showing a net-shaped fire spread prevention material,
(B) is an explanatory view showing a use state of the net-shaped fire spread prevention material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Granular material 2 String material 11 Linear fire prevention material 21 Chain fire prevention material 31 Planar net fire prevention material 41 Solid net fire prevention material 51 Net fire prevention material 52 String prevention material 53 Gap

Claims (4)

[Claims] 1. Includes a water-absorbing polymer material capable of absorbing or containing at least water discharge, and when a fire spread is likely, a large amount of a string-like or finely-granulated water-absorbing polymer material connected to a certain amount A fire spread prevention material characterized by absorbing water and forming a water-containing layer to prevent fire spread. 2. A water-absorbing polymer material capable of absorbing or containing at least water discharged, and when there is a possibility of fire spread, a certain amount of a string-like or finely-granulated water-absorbing polymer material is connected to form a block. A fire spread prevention material, characterized in that a large amount of water is absorbed by the material formed to form a water-containing layer to prevent fire spread. 3. A water-absorbent polymer material that can absorb or contain at least water discharged, and when there is a possibility of fire spread, a large amount of a water-absorbent polymer material in the form of a string or fine granules is used in a net form. A fire spread prevention material characterized by absorbing water and forming a water-containing layer to prevent fire spread. 4. A fire-prevention material containing a water-absorbing polymer material capable of absorbing or containing at least water discharge is stored in a dry state under normal conditions, and when there is a possibility of fire-spreading, a large amount of water is contained in the fire-prevention material. The fire spread preventing material according to any one of claims 1 to 3, wherein the material is absorbed by the water-absorbing polymer material to form a water-containing layer, thereby preventing fire spread.